CN110289683A - Microgrid network transmission performance monitoring system and implementation method based on NB-IOT - Google Patents
- ️Fri Sep 27 2019
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- CN110289683A CN110289683A CN201910503672.7A CN201910503672A CN110289683A CN 110289683 A CN110289683 A CN 110289683A CN 201910503672 A CN201910503672 A CN 201910503672A CN 110289683 A CN110289683 A CN 110289683A Authority
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 164
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- 238000010248 power generation Methods 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 4
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
本发明公开了一种基于NB‑IOT的微电网网络传输性能监控及实现方法。它包括现场设备层、网络传输层和平台应用层。现场设备层包括微电网环境信息采集系统、现场设备监控系统和NB‑IOT终端，网络传输层包含NB‑IOT基站和核心网，平台应用层包括微电网环境信息采集系统和现场设备监控系统。NB‑IOT终端在发送采集的环境、设备运行等数据的同时，NB‑IOT终端的MCU模块通过AT指令获取当前信号接收功率等网络性能参数并打包成JSON数据包装入MQTT协议发送至微电网网络传输性能监控平台，微电网网络传输性能监控平台通过WebSocket与NB‑IOT基站和核心网进行远程连接，通过下发API指令获取设备连接数等网络性能参数并显示分析，从而对现场设备的启停、维护等做出决策。
The invention discloses an NB-IOT-based microgrid network transmission performance monitoring and implementation method. It includes field device layer, network transport layer and platform application layer. The field device layer includes the microgrid environmental information collection system, the field device monitoring system and the NB‑IOT terminal, the network transmission layer includes the NB‑IOT base station and the core network, and the platform application layer includes the microgrid environment information collection system and the field device monitoring system. While the NB-IOT terminal sends the collected environment, equipment operation and other data, the MCU module of the NB-IOT terminal obtains the network performance parameters such as the current signal received power through AT commands, and packages it into JSON data packets, which are packaged into the MQTT protocol and sent to the microgrid network Transmission performance monitoring platform, the microgrid network transmission performance monitoring platform is remotely connected to the NB-IOT base station and core network through WebSocket, and the network performance parameters such as the number of device connections are obtained and displayed and analyzed by issuing API commands, so as to start and stop the field equipment. , maintenance, etc.
Description
技术领域technical field
本发明涉及微电网及物联网开发领域，具体设计一种基于NB-IOT的微电网网络传输性能监控系统及实现方法。The invention relates to the field of microgrid and Internet of Things development, and specifically designs a microgrid network transmission performance monitoring system and an implementation method based on NB-IOT.
背景技术Background technique
微电网是指由分布式电源、储能装置、能量转换装置、负荷、监控和保护装置等组成的小型发配电系统。微电网的提出旨在实现分布式电源的灵活、高效应用，解决数量庞大、形式多样的分布式电源并网问题。开发和延伸微电网能够充分促进分布式电源与可再生能源的大规模接入，实现对负荷多种能源形式的高可靠性供给，是实现主动式配电网的一种有效方式，使传统电网向智能电网过渡。Microgrid refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices. The proposal of microgrid aims to realize the flexible and efficient application of distributed power, and solve the problem of grid connection of a large number and various forms of distributed power. The development and extension of the microgrid can fully promote the large-scale access of distributed power and renewable energy, and realize the high-reliability supply of various energy forms to the load. Transition to Smart Grid.
现有的微电网的通信使用的是窄带物联网180KHz的一个传输带宽进行环境、设备运行等数据的传输，但是在传输过程中对于设备接收信号的强度、信号接收质量、传输速率、设备的连接状态等网络性能参数缺乏直观性的分析方法，在一些网络环境较差的情况下无法发现丢失的重要数据从而导致严重后果。The communication of the existing microgrid uses a transmission bandwidth of 180KHz of the narrowband Internet of Things to transmit data such as environment and equipment operation, but during the transmission process, the strength of the received signal of the equipment, the quality of signal reception, the transmission rate, the connection of the equipment Network performance parameters such as status lack intuitive analysis methods, and in some poor network environments, missing important data cannot be found, resulting in serious consequences.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于针对已有技术的不足，提供一种基于NB-IOT的微电网网络传输性能监控系统及实现方法，对微电网环境信息采集系统和微电网现场设备监控系统的网络传输性能进行实时监控，解决因缺乏对网络传输性能的监测带来的安全隐患，提升系统的综合安全水平，从而在整体上提升系统的性能。The purpose of the present invention is to provide a NB-IOT-based microgrid network transmission performance monitoring system and an implementation method for the deficiencies of the prior art, and to carry out the network transmission performance of the microgrid environmental information collection system and the microgrid field equipment monitoring system. Real-time monitoring solves the security risks caused by the lack of monitoring of network transmission performance, improves the comprehensive security level of the system, and thus improves the performance of the system as a whole.
为达到上述目的，本发明解决其技术问题所采用的技术方案：In order to achieve the above object, the technical scheme adopted by the present invention to solve its technical problems:
一种基于NB-IOT的微电网网络传输性能监控系统，包括现场设备层、网络传输层和平台应用层；所述现场设备层包括微电网环境信息采集系统、微电网现场设备监控系统和NB-IOT终端；所述网络传输层包含NB-IOT基站和NB-IOT核心网；所述平台应用层包括微电网环境信息采集系统网络数据传输监测和微电网现场设备监控系统网络数据传输监测。An NB-IOT-based microgrid network transmission performance monitoring system includes a field device layer, a network transmission layer and a platform application layer; the field device layer includes a microgrid environment information collection system, a microgrid field device monitoring system and an NB- IOT terminal; the network transmission layer includes the NB-IOT base station and the NB-IOT core network; the platform application layer includes the network data transmission monitoring of the microgrid environmental information collection system and the network data transmission monitoring of the microgrid field equipment monitoring system.
所述现场设备层包括微电网环境信息采集系统、微电网现场设备监控系统和NB-IOT终端；所述微电网环境信息采集系统包括温湿度监测设备、一氧化碳含量监测设备、二氧化碳含量监测设备、风速监测设备和光强监测设备，负责采集微电网现场的环境信息数据；所述微电网现场设备监控系统包括配电系统测控单元、光伏储能系统测控单元、风力并网发电系统测控单元、光伏并网发电系统测控单元、柴油发电系统测控单元，负责采集微电网现场设备的运行数据并对微电网现场设备进行控制；所述NB-IOT终端包括MCU主控模块、供电模块、NB-IOT无线模块和RS485接口模块，RS485接口模块负责NB-IOT终端与微电网环境信息采集系统和微电网现场设备监控系统的数据交互，MCU主控模块负责把微电网环境信息采集系统和微电网现场设备监控系统的数据通过NB-IOT无线模块发送至平台应用层的微电网智能监控平台的同时，向NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率(RSRP)、接收信号强度(RSSI)、参考信号接收质量(RSRQ)、信噪比(SNR)、数据信道上下行传输字节总数(UL_total_bytes\DL_total_bytes)等性能参数。The field equipment layer includes a microgrid environment information collection system, a microgrid field equipment monitoring system and an NB-IOT terminal; the microgrid environment information collection system includes temperature and humidity monitoring equipment, carbon monoxide content monitoring equipment, carbon dioxide content monitoring equipment, wind speed Monitoring equipment and light intensity monitoring equipment are responsible for collecting environmental information data on the microgrid site; the microgrid site equipment monitoring system includes a power distribution system measurement and control unit, a photovoltaic energy storage system measurement and control unit, a wind power grid-connected power generation system measurement and control unit, photovoltaic parallel The measurement and control unit of the grid power generation system and the measurement and control unit of the diesel power generation system are responsible for collecting the operation data of the microgrid field equipment and controlling the microgrid field equipment; the NB-IOT terminal includes the MCU main control module, the power supply module, and the NB-IOT wireless module. And the RS485 interface module, the RS485 interface module is responsible for the data interaction between the NB-IOT terminal and the microgrid environmental information acquisition system and the microgrid field equipment monitoring system, and the MCU main control module is responsible for the microgrid environmental information acquisition system and the microgrid field equipment monitoring system. When the data is sent to the microgrid intelligent monitoring platform of the platform application layer through the NB-IOT wireless module, the AT command is sent to the NB-IOT wireless module to obtain the reference signal received power (RSRP), received signal strength (RSSI), Performance parameters such as reference signal reception quality (RSRQ), signal-to-noise ratio (SNR), and the total number of uplink and downlink transmission bytes of the data channel (UL_total_bytes\DL_total_bytes).
所述网络传输层包含NB-IOT基站和NB-IOT核心网；所述NB-IOT基站提供NB-IOT网络的信号覆盖，NB-IOT终端通过RRC连接与NB-IOT基站建立起连接，从而进行各种环境、测数据和网络性能参数的发送，NB-IOT基站接收NB-IOT终端发送的环境、设备运行数据和网络性能参数并通过S1接口转发至NB-IOT核心网，同时支持响应微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接下发的API指令，返回响应的网络性能参数；所述NB-IOT核心网通过S1接口接收NB-IOT基站发送的环境、设备运行数据和网络性能参数并通过SGW网关转发至微电网窄带物联网网络传输性能监控平台，同时支持响应微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接下发的API指令，返回响应的网络性能参数。The network transmission layer includes the NB-IOT base station and the NB-IOT core network; the NB-IOT base station provides the signal coverage of the NB-IOT network, and the NB-IOT terminal establishes a connection with the NB-IOT base station through the RRC connection, so as to Sending of various environment, measurement data and network performance parameters, the NB-IOT base station receives the environment, equipment operation data and network performance parameters sent by the NB-IOT terminal and forwards them to the NB-IOT core network through the S1 interface, and supports responding to the microgrid The NB-IOT network transmission performance monitoring platform returns the corresponding network performance parameters through the API command issued by the establishment of a remote websocket connection; the NB-IOT core network receives the environment, equipment operation data and network data sent by the NB-IOT base station through the S1 interface The performance parameters are forwarded to the microgrid narrowband IoT network transmission performance monitoring platform through the SGW gateway, and at the same time support the response to the microgrid narrowband IoT network transmission performance monitoring platform by establishing a remote websocket connection.
所述平台应用层为微电网窄带物联网网络传输性能监控平台，包括微电网环境信息采集系统网络数据传输监测和微电网现场设备监控系统网络数据传输监测；所述微电网环境信息采集系统网络数据传输监测负责对于微电网环境信息采集系统在进行环境数据传输过程中的网络性能参数进行显示分析，显示分析的参数主要包括参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率；所述微电网现场设备监控系统网络数据传输监测负责对于微电网现场设备监控系统在进行运行和控制数据传输中的网络性能参数进行显示分析，显示分析的参数主要包括参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率。The platform application layer is a microgrid narrowband Internet of Things network transmission performance monitoring platform, including the network data transmission monitoring of the microgrid environmental information collection system and the network data transmission monitoring of the microgrid field equipment monitoring system; the network data transmission monitoring of the microgrid environmental information collection system Transmission monitoring is responsible for displaying and analyzing the network performance parameters of the microgrid environmental information acquisition system in the process of environmental data transmission. The displayed and analyzed parameters mainly include reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, upper and lower The total number of bytes transmitted, the number of device connections, the number of successful RRC connections, and the uplink and downlink rates; the network data transmission monitoring of the microgrid field device monitoring system is responsible for the network performance of the microgrid field device monitoring system during operation and control data transmission. The parameters are displayed and analyzed. The parameters displayed and analyzed mainly include the received power of the reference signal, the strength of the received signal, the received quality of the reference signal, the signal-to-noise ratio, the total number of uplink and downlink transmitted bytes, the number of device connections, the number of successful RRC connections, and the uplink and downlink rates.
一种基于NB-IOT的微电网网络传输性能监控系统的实现方法，具体步骤如下：An implementation method of a microgrid network transmission performance monitoring system based on NB-IOT, the specific steps are as follows:
1)微电网环境信息采集系统和微电网现场设备监控系统的环境、设备运行数据上传至NB-IOT终端，与NB-IOT基站建立RRC连接，并将数据上传至微电网窄带物联网网络传输性能监控平台；1) Upload the environment and equipment operation data of the microgrid environmental information collection system and the microgrid field equipment monitoring system to the NB-IOT terminal, establish an RRC connection with the NB-IOT base station, and upload the data to the microgrid narrowband IoT network transmission performance monitoring platform;
2)NB-IOT终端的MCU主控模块通过给NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、数据信道上下行传输字节总数性能参数，并打包成JSON数据包格式通过MQTT协议发送；2) The MCU main control module of the NB-IOT terminal obtains the reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, data channel uplink and downlink transmission bytes of the current network by sending AT commands to the NB-IOT wireless module The total performance parameters are packaged into JSON data packets and sent through the MQTT protocol;
3)微电网窄带物联网网络传输性能监控平台通过Websocket与NB-IOT基站建立远程连接，并下发API指令获取上下行传输速率、RRC连接成功数量等性能参数，微电网窄带物联网网络传输性能监控平台通过Websocket与NB-IOT核心网建立远程连接，并下发API指令获取设备连接数等网络性能；3) The microgrid narrowband IoT network transmission performance monitoring platform establishes a remote connection with the NB-IOT base station through Websocket, and issues API commands to obtain performance parameters such as the uplink and downlink transmission rate, the number of successful RRC connections, and the microgrid narrowband IoT network transmission performance The monitoring platform establishes a remote connection with the NB-IOT core network through Websocket, and issues API commands to obtain network performance such as the number of device connections;
4)微电网环境信息采集系统网络数据传输监测4) Network data transmission monitoring of microgrid environmental information collection system
通过分析参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率等网络参数，对当前微电网环境信息采集系统的网络传输环境做出评估，从而对现场设备的启停、维护做出决策；微电网现场设备监控系统网络数据传输监测通过分析参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率等网络参数，对当前微电网现场设备监控系统的网络传输环境做出评估，从而对现场设备的启停、维护做出决策。By analyzing network parameters such as reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, total uplink and downlink transmission bytes, number of device connections, number of successful RRC connections, and uplink and downlink rates, the current microgrid environment information is collected. The network transmission environment of the system is evaluated, so as to make decisions on the start, stop and maintenance of the field equipment; the network data transmission monitoring of the microgrid field equipment monitoring system analyzes the reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, the total number of uplink and downlink transmission bytes, the number of device connections, the number of successful RRC connections, the uplink and downlink rates and other network parameters, to evaluate the network transmission environment of the current microgrid field device monitoring system, so as to start, stop and maintain the field devices. make decisions.
与现有系统相比，本发明具有如下显而易见的突出实质性特点和显著的技术进步：Compared with the existing system, the present invention has the following obvious outstanding substantive features and significant technical progress:
本发明方法通过NB-IOT终端上的MCU主控模块在NB-IOT终端发送环境、设备运行等数据的同时，向NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数等性能参数，微电网网络传输性能监控平台通过Websocket与NB-IOT基站建立远程连接，并下发API指令获取上下行传输速率、RRC连接成功数量等性能参数，微电网网络传输性能监控平台通过Websocket与NB-IOT核心网建立远程连接，并下发API指令获取设备连接数等网络性能，实现了对微电网环境信息采集系统和微电网现场设备监控系统的网络传输性能进行实时监控，解决了网络传输性能直观性差的问题。In the method of the invention, the MCU main control module on the NB-IOT terminal sends the AT command to the NB-IOT wireless module while the NB-IOT terminal sends data such as environment and equipment operation to obtain the reference signal received power and received signal strength of the current network. , reference signal reception quality, signal-to-noise ratio, total uplink and downlink transmission bytes and other performance parameters, the microgrid network transmission performance monitoring platform establishes a remote connection with the NB-IOT base station through Websocket, and issues API commands to obtain the uplink and downlink transmission rate, RRC For performance parameters such as the number of successful connections, the microgrid network transmission performance monitoring platform establishes a remote connection with the NB-IOT core network through Websocket, and issues API commands to obtain network performance such as the number of device connections, realizing the collection of microgrid environmental information systems and microgrids. The network transmission performance of the power grid field equipment monitoring system is monitored in real time, which solves the problem of poor intuition of the network transmission performance.
本发明通过微电网网络传输性能监控平台对微电网环境信息采集系统和微电网现场设备监控系统的网络传输环境进行实时监测并作出评估和决策，解决了因缺乏对网络传输性能的监测带来的安全隐患的问题，极大地提高了系统的安全性和可靠性。The invention monitors the network transmission environment of the micro-grid environment information collection system and the micro-grid field equipment monitoring system in real time through the micro-grid network transmission performance monitoring platform, and makes evaluation and decision-making, and solves the problems caused by the lack of monitoring of the network transmission performance. The problem of hidden dangers greatly improves the security and reliability of the system.
附图说明Description of drawings
图1为本发明基于NB-IOT的微电网网络传输性能监控系统的框架图。FIG. 1 is a frame diagram of a microgrid network transmission performance monitoring system based on NB-IOT of the present invention.
图2为本发明微电网网络传输性能监控平台与NB-IOT基站和核心网的远程连接图。FIG. 2 is a remote connection diagram of the microgrid network transmission performance monitoring platform of the present invention, the NB-IOT base station and the core network.
图3为本发明系统是基于SDR实验平台的实验流程图。Fig. 3 is the experimental flow chart of the system of the present invention based on the SDR experimental platform.
图4为本发明微电网窄带物联网网络传输性能监控平台接收信号质量(RSRQ)监测图。FIG. 4 is a monitoring diagram of the received signal quality (RSRQ) of the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图5为本发明微电网窄带物联网网络传输性能监控平台参考信号接收功率(RSRP)监测图。FIG. 5 is a monitoring diagram of the reference signal received power (RSRP) of the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图6为本发明微电网窄带物联网网络传输性能监控平台接收的信号强度(RSSI)监测图。FIG. 6 is a monitoring diagram of signal strength (RSSI) received by the microgrid narrowband IoT network transmission performance monitoring platform of the present invention.
图7为本发明微电网窄带物联网网络传输性能监控平台信噪比(SNR)监测图。FIG. 7 is a signal-to-noise ratio (SNR) monitoring diagram of the microgrid narrowband IoT network transmission performance monitoring platform of the present invention.
图8为本发明微电网窄带物联网网络传输性能监控平台上行传输字节数监测图。FIG. 8 is a monitoring diagram of the number of bytes transmitted upstream by the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图9为本发明微电网窄带物联网网络传输性能监控平台下行传输字节数监测图。FIG. 9 is a monitoring diagram of the number of bytes transmitted downlink by the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图10为本发明微电网窄带物联网网络传输性能监控平台连接设备数监测图。FIG. 10 is a monitoring diagram of the number of connected devices of the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图11为本发明微电网窄带物联网网络传输性能监控平台RRC连接成功数监测图。FIG. 11 is a monitoring diagram of the number of successful RRC connections of the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图12为本发明微电网窄带物联网网络传输性能监控平台上行传输速率监测图。FIG. 12 is a diagram for monitoring the uplink transmission rate of the microgrid narrowband Internet of Things network transmission performance monitoring platform according to the present invention.
图13为本发明微电网窄带物联网网络传输性能监控平台下行传输速率监测图。FIG. 13 is a diagram for monitoring the downlink transmission rate of the microgrid narrowband Internet of Things network transmission performance monitoring platform of the present invention.
图14为本发明实施例系统实现方法流程图。FIG. 14 is a flowchart of a method for implementing a system according to an embodiment of the present invention.
具体实施方式Detailed ways
为了使本发明的技术方案及优点更加清楚明白，以下优选实施例结合附图对本发明进行进一步详细说明。In order to make the technical solutions and advantages of the present invention clearer, the following preferred embodiments will further describe the present invention in detail with reference to the accompanying drawings.
如图1所示，一种基于NB-IOT的微电网网络传输性能监控系统，包括现场设备层、网络传输层和平台应用层；所述现场设备层包括微电网环境信息采集系统、微电网现场设备监控系统和NB-IOT终端；所述网络传输层包含NB-IOT基站和NB-IOT核心网；所述平台应用层包括微电网环境信息采集系统网络数据传输监测和微电网现场设备监控系统网络数据传输监测。As shown in Figure 1, a microgrid network transmission performance monitoring system based on NB-IOT includes a field device layer, a network transmission layer and a platform application layer; the field device layer includes a microgrid environment information collection system, a microgrid site Equipment monitoring system and NB-IOT terminal; the network transmission layer includes the NB-IOT base station and the NB-IOT core network; the platform application layer includes the network data transmission monitoring of the microgrid environmental information collection system and the network of the microgrid field equipment monitoring system Data transmission monitoring.
所述现场设备层包括微电网环境信息采集系统、微电网现场设备监控系统和NB-IOT终端；所述微电网环境信息采集系统包括温湿度监测设备、一氧化碳含量监测设备、二氧化碳含量监测设备、风速监测设备和光强监测设备，负责采集微电网现场的环境信息数据；所述微电网现场设备监控系统包括配电系统测控单元、光伏储能系统测控单元、风力并网发电系统测控单元、光伏并网发电系统测控单元、柴油发电系统测控单元，负责采集微电网现场设备的运行数据并对微电网现场设备进行控制；所述NB-IOT终端包括MCU主控模块、供电模块、NB-IOT无线模块和RS485接口模块，RS485接口模块负责NB-IOT终端与微电网环境信息采集系统和微电网现场设备监控系统的数据交互，MCU主控模块负责把微电网环境信息采集系统和微电网现场设备监控系统的数据通过NB-IOT无线模块发送至平台应用层的微电网智能监控平台的同时，向NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、数据信道上下行传输字节总数性能参数。The field equipment layer includes a microgrid environment information collection system, a microgrid field equipment monitoring system and an NB-IOT terminal; the microgrid environment information collection system includes temperature and humidity monitoring equipment, carbon monoxide content monitoring equipment, carbon dioxide content monitoring equipment, wind speed Monitoring equipment and light intensity monitoring equipment are responsible for collecting environmental information data on the microgrid site; the microgrid site equipment monitoring system includes a power distribution system measurement and control unit, a photovoltaic energy storage system measurement and control unit, a wind power grid-connected power generation system measurement and control unit, photovoltaic parallel The measurement and control unit of the grid power generation system and the measurement and control unit of the diesel power generation system are responsible for collecting the operation data of the microgrid field equipment and controlling the microgrid field equipment; the NB-IOT terminal includes the MCU main control module, the power supply module, and the NB-IOT wireless module. And the RS485 interface module, the RS485 interface module is responsible for the data interaction between the NB-IOT terminal and the microgrid environmental information acquisition system and the microgrid field equipment monitoring system, and the MCU main control module is responsible for the microgrid environmental information acquisition system and the microgrid field equipment monitoring system. When the data is sent to the microgrid intelligent monitoring platform of the platform application layer through the NB-IOT wireless module, the AT command is sent to the NB-IOT wireless module to obtain the reference signal received power, received signal strength, reference signal received quality, and information of the current network. Noise ratio, the performance parameters of the total number of uplink and downlink transmission bytes of the data channel.
所述网络传输层包含NB-IOT基站和NB-IOT核心网；所述NB-IOT基站提供NB-IOT网络的信号覆盖，NB-IOT终端通过RRC连接与NB-IOT基站建立起连接，从而进行各种环境、测数据和网络性能参数的发送，NB-IOT基站接收NB-IOT终端发送的环境、设备运行数据和网络性能参数并通过S1接口转发至NB-IOT核心网，同时支持响应微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接下发的API指令，返回响应的网络性能参数；所述NB-IOT核心网通过S1接口接收NB-IOT基站发送的环境、设备运行数据和网络性能参数并通过SGW网关转发至微电网窄带物联网网络传输性能监控平台，同时支持响应微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接下发的API指令，返回响应的网络性能参数，如图2所示。The network transmission layer includes the NB-IOT base station and the NB-IOT core network; the NB-IOT base station provides the signal coverage of the NB-IOT network, and the NB-IOT terminal establishes a connection with the NB-IOT base station through the RRC connection, so as to Sending of various environment, measurement data and network performance parameters, the NB-IOT base station receives the environment, equipment operation data and network performance parameters sent by the NB-IOT terminal and forwards them to the NB-IOT core network through the S1 interface, and supports responding to the microgrid The NB-IOT network transmission performance monitoring platform returns the corresponding network performance parameters through the API command issued by the establishment of a remote websocket connection; the NB-IOT core network receives the environment, equipment operation data and network data sent by the NB-IOT base station through the S1 interface The performance parameters are forwarded to the microgrid narrowband IoT network transmission performance monitoring platform through the SGW gateway, and at the same time support the response to the microgrid narrowband IoT network transmission performance monitoring platform by establishing a remote websocket connection. as shown in picture 2.
所述平台应用层为微电网窄带物联网网络传输性能监控平台，包括微电网环境信息采集系统网络数据传输监测和微电网现场设备监控系统网络数据传输监测；所述微电网环境信息采集系统网络数据传输监测负责对于微电网环境信息采集系统在进行环境数据传输过程中的网络性能参数进行显示分析，显示分析的参数主要包括参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率；所述微电网现场设备监控系统网络数据传输监测负责对于微电网现场设备监控系统在进行运行和控制数据传输中的网络性能参数进行显示分析，显示分析的参数主要包括参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率。The platform application layer is a microgrid narrowband Internet of Things network transmission performance monitoring platform, including the network data transmission monitoring of the microgrid environmental information collection system and the network data transmission monitoring of the microgrid field equipment monitoring system; the network data transmission monitoring of the microgrid environmental information collection system Transmission monitoring is responsible for displaying and analyzing the network performance parameters of the microgrid environmental information acquisition system in the process of environmental data transmission. The displayed and analyzed parameters mainly include reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, upper and lower The total number of bytes transmitted, the number of device connections, the number of successful RRC connections, and the uplink and downlink rates; the network data transmission monitoring of the microgrid field device monitoring system is responsible for the network performance of the microgrid field device monitoring system during operation and control data transmission. The parameters are displayed and analyzed. The parameters displayed and analyzed mainly include the received power of the reference signal, the strength of the received signal, the received quality of the reference signal, the signal-to-noise ratio, the total number of uplink and downlink transmitted bytes, the number of device connections, the number of successful RRC connections, and the uplink and downlink rates.
如图3所示，使用SDR实验平台进行仿真实验，具体的实验流程以及微电网网络传输性能监控平台监测的网络性能参数。As shown in Figure 3, the SDR experimental platform is used to conduct the simulation experiment, the specific experimental process and the network performance parameters monitored by the microgrid network transmission performance monitoring platform.
如图4到图13为微电网网络传输性能监控平台监测的网络性能参数变化的折线图，其中一部分参数来自于NB-IOT终端在发送环境、设备运行数据的同时，MCU主控模块通过给NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率(RSRP)、接收信号强度(RSSI)、参考信号接收质量(RSRQ)、信噪比(SNR)、上下行传输字节总数(UL_total_bytes\DL_total_bytes)等性能参数，获取网络性能参数的具体格式如下：Figures 4 to 13 are line charts of changes in network performance parameters monitored by the microgrid network transmission performance monitoring platform. Some of the parameters come from the NB-IOT terminal sending the environment and device operation data, and the MCU main control module sends the NB -IOT wireless module sends AT commands to obtain reference signal received power (RSRP), received signal strength (RSSI), reference signal received quality (RSRQ), signal-to-noise ratio (SNR), and total uplink and downlink transmission bytes (UL_total_bytes\ DL_total_bytes) and other performance parameters, the specific format for obtaining network performance parameters is as follows:
1)发送AT+QENG＝0时：1) When sending AT+QENG=0:
第一位The first one 第二位second 第三位the third 第四位fourth 第五位fifth 第六位sixth 00 Sc_earfnSc_earfn sc_earfcn_offsetsc_earfcn_offset sc_pcisc_pci sc_cellidsc_cellid sc_rsrpsc_rsrp 第七位seventh 第八位eighth 第九位ninth 第十位tenth 第十一位eleventh 第十二位twelfth place sc_rsrqsc_rsrq sc_rssisc_rssi sc_snrsc_snr sc_bandsc_band sc_tacsc_tac sc_eclsc_ecl
其中，接收数据的各个参数的含义如下：The meaning of each parameter of the received data is as follows:
第一位：表示显示的是无线电信息；The first digit: indicates that the radio information is displayed;
第二位：表示服务单元格的射频频点号(EARFCN)的整数值；The second digit: the integer value of the RF frequency point number (EARFCN) of the service cell;
第三位：表示服务单元格的射频频点号(EARFCN)的偏移量；The third digit: Indicates the offset of the RF frequency point number (EARFCN) of the service cell;
第四位：表示服务单元物理单元ID的整数值；The fourth bit: an integer value representing the physical unit ID of the service unit;
第五位：表示用于服务单元格的16进制格式的4字节(28位)单元格ID；Fifth digit: Indicates the 4-byte (28-bit) cell ID in hexadecimal format used for the service cell;
第六位：表示以dBm为单位的服务单元参考信号接收功率(RSRP)；The sixth bit: Indicates the reference signal received power (RSRP) of the serving unit in dBm;
第七位：表示以dB为单位的服务单元参考信号接收质量(RSRQ)；The seventh bit: Indicates the reference signal received quality (RSRQ) of the serving unit in dB;
第八位：表示以dBm为单位的服务单元信号接收强度(RSSI)；The eighth bit: Indicates the service unit signal received strength (RSSI) in dBm;
第九位：表示以dB为单位的服务单元的信噪比值(SNR)；The ninth bit: Indicates the signal-to-noise ratio (SNR) of the serving unit in dB;
第十位：表示服务小区频带；The tenth digit: Indicates the frequency band of the serving cell;
第十一位：表示十六进制格式的双字节跟踪区域码(TAC)；The eleventh bit: Indicates the double-byte tracking area code (TAC) in hexadecimal format;
第十二位：表示服务单元的最后增强覆盖率级别(ECL)值。Twelfth bit: Indicates the last Enhanced Coverage Level (ECL) value of the service unit.
2)发送AT+QENG＝1时：2) When sending AT+QENG=1:
第一位The first one 第二位second 第三位the third 11 RLC_UL_BLERRLC_UL_BLER RLC_DL_BLERRLC_DL_BLER 第四位fourth 第五位fifth 第六位sixth MAC_UL_BLERMAC_UL_BLER MAC_DL_BLERMAC_DL_BLER MAC_UL_total_bytesMAC_UL_total_bytes 第七位seventh 第八位eighth 第九位ninth MAC_DL_total_bytesMAC_DL_total_bytes MAC_UL_total_HARQ_TXMAC_UL_total_HARQ_TX MAC_DL_total_HARQ_TXMAC_DL_total_HARQ_TX 第十位tenth 第十一位eleventh 第十二位twelfth place MAC_UL_HARQ_re_TXMAC_UL_HARQ_re_TX MAC_DL_HARQ_re_TXMAC_DL_HARQ_re_TX RLC_UL_tputRLC_UL_tput 第十三位Thirteenth 第十四位fourteenth 第十五位fifteenth RLC_DL_tputRLC_DL_tput MAC_UL_tputMAC_UL_tput MAC_DL_tputMAC_DL_tput
其中，接收数据的各个参数的含义如下：The meaning of each parameter of the received data is as follows:
第一位：表示显示的是数据传输信息；The first digit: indicates that the data transmission information is displayed;
第二位：表示RLC层中的上行传输块的错误率，用％值表示(范围从0到100)；The second bit: indicates the error rate of the uplink transport block in the RLC layer, expressed in % value (ranging from 0 to 100);
第三位：表示RLC层中的下行传输块的错误率，用％值表示(范围从0到100)；The third bit: indicates the error rate of the downlink transport block in the RLC layer, expressed in % value (ranging from 0 to 100);
第四位：表示MAC层中的上行数据传输信道传输块的错误率(按HARQ)，用％值表示(范围从0到100)；The fourth bit: indicates the error rate of the uplink data transmission channel transport block in the MAC layer (by HARQ), expressed in % value (ranging from 0 to 100);
第五位：表示MAC层中的下行数据传输信道传输块的错误率(按HARQ)，用％值表示(范围从0到100)；The fifth bit: indicates the error rate of the downlink data transmission channel transport block in the MAC layer (by HARQ), expressed in % value (ranging from 0 to 100);
第六位：表示MAC层中的上行数据传输信道传输块字节总数，计算上行传输信道所有HARQ传输和重传输的；The sixth bit: Indicates the total number of transmission block bytes of the uplink data transmission channel in the MAC layer, and calculates all HARQ transmissions and retransmissions of the uplink transmission channel;
第七位：表示MAC层中的下行数据传输信道传输块字节总数，计算下行传输信道所有HARQ传输和重传输的；The seventh bit: Indicates the total number of bytes in the downlink data transmission channel transport block in the MAC layer, and calculates all HARQ transmissions and retransmissions in the downlink transmission channel;
第八位：表示MAC层中的上行数据传输信道重传的传输快总数，包括从成功建立/恢复/重新建立RRC连接开始计算；The eighth bit: Indicates the total number of transmission blocks retransmitted by the uplink data transmission channel in the MAC layer, including counting from the successful establishment/restoration/re-establishment of the RRC connection;
第九位：表示MAC层中的下行数据传输信道重传的传输快总数，包括从成功建立/恢复/重新建立RRC连接开始计算；The ninth bit: Indicates the total number of transmission blocks retransmitted by the downlink data transmission channel in the MAC layer, including the calculation from the successful establishment/restoration/re-establishment of the RRC connection;
第十位：表示MAC层上行数据传输信道的传输块的HARQ重发数；The tenth digit: indicates the number of HARQ retransmissions of the transport block of the uplink data transmission channel of the MAC layer;
第十一位：表示MAC层下行数据传输信道的传输块的HARQ重发数；The eleventh bit: indicates the number of HARQ retransmissions of the transport block of the downlink data transmission channel of the MAC layer;
第十二位：表示RLC上行吞吐量，计算所有已建立的RLC AM无线电载波；The twelfth bit: Indicates the RLC uplink throughput, calculating all established RLC AM radio carriers;
第十三位：表示RLC下行吞吐量，计算所有已建立的RLC AM无线电载波；Thirteenth: Indicates RLC downlink throughput, calculating all established RLC AM radio carriers;
第十四位：表示MAC层上行数据传输信道的吞吐量；The fourteenth bit: Indicates the throughput of the MAC layer uplink data transmission channel;
第十五位：表示MAC层下行数据传输信道的吞吐量。The fifteenth bit: Indicates the throughput of the downlink data transmission channel of the MAC layer.
从NB-IOT终端获取的网络性能参数打包成JSON数据包格式通过MQTT协议发送，其中各参数的含义如下所示：The network performance parameters obtained from the NB-IOT terminal are packaged into JSON data packets and sent through the MQTT protocol. The meaning of each parameter is as follows:
参数名：parameter name: 参数含义：Parameter meaning: RSRPRSRP 参考信号接收功率Reference signal received power RSRQRSRQ 参考信号接收质量reference signal reception quality RSSIRSSI 信号接收强度signal reception strength SNRSNR 信噪比signal to noise ratio UL_total_bytesUL_total_bytes 上行接收总字节数The total number of bytes received in the upstream DL_total_bytesDL_total_bytes 上行接收总字节数The total number of bytes received in the upstream
同时微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接NB-IOT基站和NB-IOT核心网，通过下发API指令，获取的NB-IOT基站和NB-IOT核心网返回的网络性能参数，返回的性能参数的含义如下所示：At the same time, the microgrid narrowband IoT network transmission performance monitoring platform connects the NB-IOT base station and the NB-IOT core network by establishing a remote websocket, and obtains the network performance parameters returned by the NB-IOT base station and the NB-IOT core network by issuing API commands. , the meanings of the returned performance parameters are as follows:
性能参数名performance parameter name rrc_connection_completerrc_connection_complete dl_bitratedl_bitrate ul_bitrateul_bitrate connected_ue_countconnected_ue_count 性能参数含义Meaning of performance parameters RRC连接成功数量Number of successful RRC connections 下行传输速率Downlink transfer rate 上行传输速率Uplink transfer rate 设备连接数Number of device connections
图4到图13为微电网窄带物联网网络传输性能监控平台在获取相关网络性能参数的同时，进行显示分析的折线图，各图表示的含义如下所示：Figures 4 to 13 are the line graphs that the microgrid narrowband IoT network transmission performance monitoring platform performs display and analysis while acquiring relevant network performance parameters. The meanings of each graph are as follows:
图4为信号接收质量(RSRQ)监测图，反映和指示当前信道质量的信噪比和干扰水平。Fig. 4 is a signal reception quality (RSRQ) monitoring diagram, which reflects and indicates the signal-to-noise ratio and interference level of the current channel quality.
图5为参考信号接收功率(RSRP)监测图，反映当前信道的路径损耗强度。FIG. 5 is a reference signal received power (RSRP) monitoring diagram, which reflects the path loss intensity of the current channel.
图6为接收的信号强度(RSSI)监测图，反映当前信道的接收信号强度和干扰强度。FIG. 6 is a received signal strength (RSSI) monitoring graph, which reflects the received signal strength and interference strength of the current channel.
图7为信噪比(SNR)监测图，反映当前信道的链路质量。Figure 7 is a signal-to-noise ratio (SNR) monitoring diagram, which reflects the link quality of the current channel.
图8为上行传输字节数监测图，反映当前上行传输的数据总量。Figure 8 is a monitoring diagram of the number of bytes transmitted upstream, reflecting the total amount of data currently transmitted upstream.
图9为下行传输字节数监测图，反映当前下行传输的数据总量。Figure 9 is a monitoring diagram of the number of bytes transmitted in the downlink, reflecting the total amount of data currently transmitted in the downlink.
图10为设备连接数监测图，反映当前处于连接状态正在运行的设备数量。Figure 10 is a monitoring diagram of the number of device connections, reflecting the number of devices currently connected and running.
图11为RRC连接成功数监测图，反映设备成功与NB-IOT基站建立RRC连接的次数Figure 11 is the monitoring chart of the number of successful RRC connections, reflecting the number of times the device has successfully established RRC connections with the NB-IOT base station
图12为上行传输速率监测图，反映当前上行传输的速率大小。FIG. 12 is a diagram for monitoring the upstream transmission rate, which reflects the current upstream transmission rate.
图13为下行传输速率监测图；反映当前下行传输的速率大小。Figure 13 is a downlink transmission rate monitoring diagram; it reflects the current downlink transmission rate.
如图14所示，一种基于NB-IOT的微电网网络传输性能监控系统的实现方法，具体步骤如下：As shown in Figure 14, a method for implementing a microgrid network transmission performance monitoring system based on NB-IOT, the specific steps are as follows:
1)微电网环境信息采集系统和微电网现场设备监控系统的环境、设备运行数据上传至NB-IOT终端，与NB-IOT基站建立RRC连接，并将数据上传至微电网窄带物联网网络传输性能监控平台；1) Upload the environment and equipment operation data of the microgrid environmental information collection system and the microgrid field equipment monitoring system to the NB-IOT terminal, establish an RRC connection with the NB-IOT base station, and upload the data to the microgrid narrowband IoT network transmission performance monitoring platform;
2)NB-IOT终端的MCU主控模块通过给NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、数据信道上下行传输字节总数性能参数，并打包成JSON数据包格式通过MQTT协议发送；2) The MCU main control module of the NB-IOT terminal obtains the reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, data channel uplink and downlink transmission bytes of the current network by sending AT commands to the NB-IOT wireless module The total performance parameters are packaged into JSON data packet format and sent through MQTT protocol;
3)微电网窄带物联网网络传输性能监控平台通过Websocket与NB-IOT基站建立远程连接，并下发API指令获取上下行传输速率、RRC连接成功数量等性能参数，微电网窄带物联网网络传输性能监控平台通过Websocket与NB-IOT核心网建立远程连接，并下发API指令获取设备连接数等网络性能；3) The microgrid narrowband IoT network transmission performance monitoring platform establishes a remote connection with the NB-IOT base station through Websocket, and issues API commands to obtain performance parameters such as the uplink and downlink transmission rate, the number of successful RRC connections, and the microgrid narrowband IoT network transmission performance The monitoring platform establishes a remote connection with the NB-IOT core network through Websocket, and issues API commands to obtain network performance such as the number of device connections;
4)微电网环境信息采集系统网络数据传输监测4) Network data transmission monitoring of microgrid environmental information collection system
通过分析参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率等网络参数，对当前微电网环境信息采集系统的网络传输环境做出评估，从而对现场设备的启停、维护做出决策；微电网现场设备监控系统网络数据传输监测通过分析参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率等网络参数，对当前微电网现场设备监控系统的网络传输环境做出评估，从而对现场设备的启停、维护做出决策。By analyzing network parameters such as reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, total uplink and downlink transmission bytes, number of device connections, number of successful RRC connections, and uplink and downlink rates, the current microgrid environment information is collected. The network transmission environment of the system is evaluated, so as to make decisions on the start, stop and maintenance of the field equipment; the network data transmission monitoring of the microgrid field equipment monitoring system analyzes the reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, the total number of uplink and downlink transmission bytes, the number of device connections, the number of successful RRC connections, the uplink and downlink rates and other network parameters, to evaluate the network transmission environment of the current microgrid field device monitoring system, so as to start, stop and maintain the field devices. make decisions.
Claims (5)
1.一种基于NB-IOT的微电网网络传输性能监控系统，其特征在于，包括现场设备层、网络传输层和平台应用层；所述现场设备层包括微电网环境信息采集系统、微电网现场设备监控系统和NB-IOT终端；所述网络传输层包含NB-IOT基站和NB-IOT核心网；所述平台应用层包括微电网环境信息采集系统网络数据传输监测和微电网现场设备监控系统网络数据传输监测。1. a microgrid network transmission performance monitoring system based on NB-IOT, is characterized in that, comprises field equipment layer, network transmission layer and platform application layer; Described field equipment layer comprises microgrid environment information collection system, microgrid site Equipment monitoring system and NB-IOT terminal; the network transmission layer includes the NB-IOT base station and the NB-IOT core network; the platform application layer includes the network data transmission monitoring of the microgrid environmental information collection system and the network of the microgrid field equipment monitoring system Data transmission monitoring. 2.根据权利要求1所述的基于NB-IOT的微电网网络传输性能监控系统，其特征在于，所述现场设备层包括微电网环境信息采集系统、微电网现场设备监控系统和NB-IOT终端；所述微电网环境信息采集系统包括温湿度监测设备、一氧化碳含量监测设备、二氧化碳含量监测设备、风速监测设备和光强监测设备，负责采集微电网现场的环境信息数据；所述微电网现场设备监控系统包括配电系统测控单元、光伏储能系统测控单元、风力并网发电系统测控单元、光伏并网发电系统测控单元、柴油发电系统测控单元，负责采集微电网现场设备的运行数据并对微电网现场设备进行控制；所述NB-IOT终端包括MCU主控模块、供电模块、NB-IOT无线模块和RS485接口模块，RS485接口模块负责NB-IOT终端与微电网环境信息采集系统和微电网现场设备监控系统的数据交互，MCU主控模块负责把微电网环境信息采集系统和微电网现场设备监控系统的数据通过NB-IOT无线模块发送至平台应用层的微电网智能监控平台的同时，向NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、数据信道上下行传输字节总数性能参数。2. The NB-IOT-based microgrid network transmission performance monitoring system according to claim 1, wherein the field device layer comprises a microgrid environment information collection system, a microgrid field device monitoring system and an NB-IOT terminal ; The microgrid environmental information collection system includes temperature and humidity monitoring equipment, carbon monoxide content monitoring equipment, carbon dioxide content monitoring equipment, wind speed monitoring equipment and light intensity monitoring equipment, and is responsible for collecting environmental information data on the microgrid site; the microgrid field equipment The monitoring system includes the measurement and control unit of the power distribution system, the measurement and control unit of the photovoltaic energy storage system, the measurement and control unit of the wind grid-connected power generation system, the measurement and control unit of the photovoltaic grid-connected power generation system, and the measurement and control unit of the diesel power generation system. The power grid field equipment is controlled; the NB-IOT terminal includes the MCU main control module, the power supply module, the NB-IOT wireless module and the RS485 interface module, and the RS485 interface module is responsible for the NB-IOT terminal and the microgrid environmental information collection system and the microgrid site. For the data interaction of the equipment monitoring system, the MCU main control module is responsible for sending the data of the microgrid environmental information collection system and the microgrid field equipment monitoring system to the microgrid intelligent monitoring platform of the platform application layer through the NB-IOT wireless module, and at the same time to the NB -IOT wireless module sends AT command to obtain the current network's reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, and the performance parameters of the total number of uplink and downlink transmission bytes of the data channel. 3.根据权利要求1所述的基于NB-IOT的微电网网络传输性能监控系统，其特征在于，所述网络传输层包含NB-IOT基站和NB-IOT核心网；所述NB-IOT基站提供NB-IOT网络的信号覆盖，NB-IOT终端通过RRC连接与NB-IOT基站建立起连接，从而进行各种环境、测数据和网络性能参数的发送，NB-IOT基站接收NB-IOT终端发送的环境、设备运行数据和网络性能参数并通过S1接口转发至NB-IOT核心网，同时支持响应微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接下发的API指令，返回响应的网络性能参数；所述NB-IOT核心网通过S1接口接收NB-IOT基站发送的环境、设备运行数据和网络性能参数并通过SGW网关转发至微电网窄带物联网网络传输性能监控平台，同时支持响应微电网窄带物联网网络传输性能监控平台通过建立远程websocket连接下发的API指令，返回响应的网络性能参数。3. The NB-IOT-based microgrid network transmission performance monitoring system according to claim 1, wherein the network transmission layer comprises an NB-IOT base station and an NB-IOT core network; the NB-IOT base station provides The signal coverage of the NB-IOT network, the NB-IOT terminal establishes a connection with the NB-IOT base station through the RRC connection, so as to send various environment, measurement data and network performance parameters, and the NB-IOT base station receives the information sent by the NB-IOT terminal. The environment, equipment operation data and network performance parameters are forwarded to the NB-IOT core network through the S1 interface, while supporting the response to the microgrid narrowband IoT network transmission performance monitoring platform by establishing a remote websocket connection. parameters; the NB-IOT core network receives the environment, equipment operation data and network performance parameters sent by the NB-IOT base station through the S1 interface and forwards it to the microgrid narrowband IoT network transmission performance monitoring platform through the SGW gateway, and supports the response to the microgrid. The NB-IoT network transmission performance monitoring platform returns the network performance parameters of the response by establishing the API command issued by the remote websocket connection. 4.根据权利要求1所述的基于NB-IOT的微电网网络传输性能监控系统，其特征在于，所述平台应用层为微电网窄带物联网网络传输性能监控平台，包括微电网环境信息采集系统网络数据传输监测和微电网现场设备监控系统网络数据传输监测；所述微电网环境信息采集系统网络数据传输监测负责对于微电网环境信息采集系统在进行环境数据传输过程中的网络性能参数进行显示分析，显示分析的参数主要包括参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率；所述微电网现场设备监控系统网络数据传输监测负责对于微电网现场设备监控系统在进行运行和控制数据传输中的网络性能参数进行显示分析，显示分析的参数主要包括参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率。4. The NB-IOT-based microgrid network transmission performance monitoring system according to claim 1, wherein the platform application layer is a microgrid narrowband Internet of Things network transmission performance monitoring platform, including a microgrid environment information collection system Network data transmission monitoring and microgrid field equipment monitoring system network data transmission monitoring; the microgrid environmental information acquisition system network data transmission monitoring is responsible for displaying and analyzing the network performance parameters of the microgrid environmental information acquisition system in the process of environmental data transmission , the parameters displayed and analyzed mainly include the received power of the reference signal, the strength of the received signal, the received quality of the reference signal, the signal-to-noise ratio, the total number of uplink and downlink transmission bytes, the number of device connections, the number of successful RRC connections, and the uplink and downlink rates; the microgrid site The network data transmission monitoring of the equipment monitoring system is responsible for displaying and analyzing the network performance parameters of the microgrid field equipment monitoring system during operation and control data transmission. The parameters displayed and analyzed mainly include the reference signal received power, the received signal strength, and the reference signal received quality. , signal-to-noise ratio, total uplink and downlink transmission bytes, number of device connections, number of successful RRC connections, and uplink and downlink rates. 5.一种基于NB-IOT的微电网网络传输性能监控系统的实现方法，其特征在于，具体步骤如下：5. an implementation method of a microgrid network transmission performance monitoring system based on NB-IOT, is characterized in that, concrete steps are as follows: 1）微电网环境信息采集系统和微电网现场设备监控系统的环境、设备运行数据上传至NB-IOT终端，与NB-IOT基站建立RRC连接，并将数据上传至微电网窄带物联网网络传输性能监控平台；1) Upload the environment and equipment operation data of the microgrid environmental information collection system and the microgrid field equipment monitoring system to the NB-IOT terminal, establish an RRC connection with the NB-IOT base station, and upload the data to the microgrid narrowband IoT network transmission performance monitoring platform; 2）NB-IOT终端的MCU主控模块通过给NB-IOT无线模块发送AT指令获取当前网络的参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、数据信道上下行传输字节总数性能参数，并打包成JSON数据包格式通过MQTT协议发送；2) The MCU main control module of the NB-IOT terminal obtains the reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, data channel uplink and downlink transmission bytes of the current network by sending AT commands to the NB-IOT wireless module The total performance parameters are packaged into JSON data packet format and sent through MQTT protocol; 3）微电网窄带物联网网络传输性能监控平台通过Websocket与NB-IOT基站建立远程连接，并下发API指令获取上下行传输速率、RRC连接成功数量等性能参数，微电网窄带物联网网络传输性能监控平台通过Websocket与NB-IOT核心网建立远程连接，并下发API指令获取设备连接数等网络性能；3) The microgrid narrowband IoT network transmission performance monitoring platform establishes a remote connection with the NB-IOT base station through Websocket, and issues API commands to obtain performance parameters such as the uplink and downlink transmission rate, the number of successful RRC connections, and the microgrid narrowband IoT network transmission performance The monitoring platform establishes a remote connection with the NB-IOT core network through Websocket, and issues API commands to obtain network performance such as the number of device connections; 4）微电网环境信息采集系统网络数据传输监测4) Network data transmission monitoring of microgrid environmental information collection system 通过分析参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率等网络参数，对当前微电网环境信息采集系统的网络传输环境做出评估，从而对现场设备的启停、维护做出决策；微电网现场设备监控系统网络数据传输监测通过分析参考信号接收功率、接收信号强度、参考信号接收质量、信噪比、上下行传输字节总数、设备连接数、RRC连接成功数量、上下行速率等网络参数，对当前微电网现场设备监控系统的网络传输环境做出评估，从而对现场设备的启停、维护做出决策。By analyzing network parameters such as reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, total uplink and downlink transmission bytes, number of device connections, number of successful RRC connections, and uplink and downlink rates, the current microgrid environment information is collected. The network transmission environment of the system is evaluated, so as to make decisions on the start, stop and maintenance of the field equipment; the network data transmission monitoring of the microgrid field equipment monitoring system analyzes the reference signal received power, received signal strength, reference signal received quality, signal-to-noise ratio, the total number of uplink and downlink transmission bytes, the number of device connections, the number of successful RRC connections, the uplink and downlink rates and other network parameters, to evaluate the network transmission environment of the current microgrid field device monitoring system, so as to start, stop and maintain the field devices. make decisions.
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* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669264A (en) * | 2020-05-22 | 2020-09-15 | 中国联合网络通信集团有限公司 | Method and device for calculating received power of reference signal |
| CN112398841A (en) * | 2020-11-06 | 2021-02-23 | 无锡一箩筐科技有限公司 | Wisdom agricultural cloud platform based on thing networking |
| CN112954725A (en) * | 2021-02-10 | 2021-06-11 | 深圳市汇顶科技股份有限公司 | Test method, communication system and NB-IoT device |
| CN114007234A (en) * | 2021-10-29 | 2022-02-01 | 中国联合网络通信集团有限公司 | Network performance monitoring method, device, device and storage medium |
| CN114691258A (en) * | 2020-12-29 | 2022-07-01 | 深圳Tcl新技术有限公司 | System performance display method and system, intelligent device and storage medium |
Citations (16)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497647A (en) * | 2011-12-14 | 2012-06-13 | 华南理工大学 | A Method for Integrity Verification and Evaluation of Internet of Things Monitoring System |
| CN104735706A (en) * | 2013-12-23 | 2015-06-24 | 中国移动通信集团浙江有限公司 | Internet of Things terminal fault diagnosis method and device |
| CN106325252A (en) * | 2016-09-28 | 2017-01-11 | 华北电力大学 | Multi-level large-span large data oriented power equipment state monitoring and evaluating system |
| CN106603655A (en) * | 2016-12-10 | 2017-04-26 | 深圳市润迅通投资有限公司 | Internet of things scene network management system |
| CN106655512A (en) * | 2016-12-28 | 2017-05-10 | 国网山东省电力公司临沂供电公司 | Substation monitoring system based on the Internet of things technology |
| CN106921704A (en) * | 2015-12-28 | 2017-07-04 | 航天信息股份有限公司 | Tax-control terminal Internet of Things network control method and system |
| CN107947227A (en) * | 2017-11-16 | 2018-04-20 | 神华集团有限责任公司 | Direction control device, photovoltaic power generation equipment, micro-grid system and control method |
| CN108131165A (en) * | 2018-01-12 | 2018-06-08 | 青岛天信电气有限公司 | A kind of underground coal mine complex automatic system |
| WO2018156732A1 (en) * | 2017-02-22 | 2018-08-30 | Iotecha Corp. | Method and apparatus for charging a battery from an isolatable electric power grid |
| CN108512305A (en) * | 2018-04-13 | 2018-09-07 | 成都有客科技有限公司 | A kind of grid monitoring system based on Internet of Things |
| CN108736520A (en) * | 2018-08-02 | 2018-11-02 | 国网江苏省电力有限公司无锡供电分公司 | A kind of grid type intelligent control system for microgrid and its method |
| CN108880919A (en) * | 2018-09-14 | 2018-11-23 | 北京天安智慧信息技术有限公司 | Internet of things equipment operating status management method and system |
| CN109193930A (en) * | 2018-08-23 | 2019-01-11 | 江苏优顺电力有限公司 | A kind of Internet of Things intelligent control system for microgrid |
| CN109413091A (en) * | 2018-11-20 | 2019-03-01 | 中国联合网络通信集团有限公司 | A kind of network security monitoring method and apparatus based on internet-of-things terminal |
| CN109548051A (en) * | 2019-01-17 | 2019-03-29 | 泰华智慧产业集团股份有限公司 | Wireless data transmission of internet of things method and terminal |
| CN109587006A (en) * | 2018-12-27 | 2019-04-05 | 深圳云博智联科技有限公司 | A kind of data forward method and its system and storage medium based on Lora gateway |
-
2019
- 2019-06-12 CN CN201910503672.7A patent/CN110289683A/en active Pending
Patent Citations (16)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497647A (en) * | 2011-12-14 | 2012-06-13 | 华南理工大学 | A Method for Integrity Verification and Evaluation of Internet of Things Monitoring System |
| CN104735706A (en) * | 2013-12-23 | 2015-06-24 | 中国移动通信集团浙江有限公司 | Internet of Things terminal fault diagnosis method and device |
| CN106921704A (en) * | 2015-12-28 | 2017-07-04 | 航天信息股份有限公司 | Tax-control terminal Internet of Things network control method and system |
| CN106325252A (en) * | 2016-09-28 | 2017-01-11 | 华北电力大学 | Multi-level large-span large data oriented power equipment state monitoring and evaluating system |
| CN106603655A (en) * | 2016-12-10 | 2017-04-26 | 深圳市润迅通投资有限公司 | Internet of things scene network management system |
| CN106655512A (en) * | 2016-12-28 | 2017-05-10 | 国网山东省电力公司临沂供电公司 | Substation monitoring system based on the Internet of things technology |
| WO2018156732A1 (en) * | 2017-02-22 | 2018-08-30 | Iotecha Corp. | Method and apparatus for charging a battery from an isolatable electric power grid |
| CN107947227A (en) * | 2017-11-16 | 2018-04-20 | 神华集团有限责任公司 | Direction control device, photovoltaic power generation equipment, micro-grid system and control method |
| CN108131165A (en) * | 2018-01-12 | 2018-06-08 | 青岛天信电气有限公司 | A kind of underground coal mine complex automatic system |
| CN108512305A (en) * | 2018-04-13 | 2018-09-07 | 成都有客科技有限公司 | A kind of grid monitoring system based on Internet of Things |
| CN108736520A (en) * | 2018-08-02 | 2018-11-02 | 国网江苏省电力有限公司无锡供电分公司 | A kind of grid type intelligent control system for microgrid and its method |
| CN109193930A (en) * | 2018-08-23 | 2019-01-11 | 江苏优顺电力有限公司 | A kind of Internet of Things intelligent control system for microgrid |
| CN108880919A (en) * | 2018-09-14 | 2018-11-23 | 北京天安智慧信息技术有限公司 | Internet of things equipment operating status management method and system |
| CN109413091A (en) * | 2018-11-20 | 2019-03-01 | 中国联合网络通信集团有限公司 | A kind of network security monitoring method and apparatus based on internet-of-things terminal |
| CN109587006A (en) * | 2018-12-27 | 2019-04-05 | 深圳云博智联科技有限公司 | A kind of data forward method and its system and storage medium based on Lora gateway |
| CN109548051A (en) * | 2019-01-17 | 2019-03-29 | 泰华智慧产业集团股份有限公司 | Wireless data transmission of internet of things method and terminal |
Non-Patent Citations (2)
* Cited by examiner, † Cited by third party| Title |
|---|
| 殷雯雯等: "面向物联网的远程基站网络化调度系统设计", 《仪表技术》 * |
| 穆志洋: "基于NB-IoT的城市声光污染监测系统研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (7)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669264A (en) * | 2020-05-22 | 2020-09-15 | 中国联合网络通信集团有限公司 | Method and device for calculating received power of reference signal |
| CN111669264B (en) * | 2020-05-22 | 2023-04-28 | 中国联合网络通信集团有限公司 | Method and device for calculating reference signal received power |
| CN112398841A (en) * | 2020-11-06 | 2021-02-23 | 无锡一箩筐科技有限公司 | Wisdom agricultural cloud platform based on thing networking |
| CN114691258A (en) * | 2020-12-29 | 2022-07-01 | 深圳Tcl新技术有限公司 | System performance display method and system, intelligent device and storage medium |
| CN112954725A (en) * | 2021-02-10 | 2021-06-11 | 深圳市汇顶科技股份有限公司 | Test method, communication system and NB-IoT device |
| CN114007234A (en) * | 2021-10-29 | 2022-02-01 | 中国联合网络通信集团有限公司 | Network performance monitoring method, device, device and storage medium |
| CN114007234B (en) * | 2021-10-29 | 2023-05-09 | 中国联合网络通信集团有限公司 | Network performance monitoring method, device, equipment and storage medium |
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