CN103857072A - Home gateway device based on zigbee and wifi networks - Google Patents

A home gateway device based on zigbee and wifi networks is composed of an outer shell and a master control circuit board, wherein the master control circuit board comprises a central processor, an Ethernet module, a wifi module, a serial port module, a zigbee module, a power module, a clock module, a storage module and the like. According to the device, an instruction of a control terminal is in communication with the central processor through the 10/100 M Ethernet module or the wifi module, and after data are processed by the central processor, the control instruction is sent to a subset through the zigbee module. The advantages of convenient and fast networking, low energy consumption and the like of the zigbee network are taken into full consideration, a home wireless local area network is constructed, and intelligent networking of an intelligent housing system can be achieved without manual intervention. Defects of an original 433 M wireless network can be overcome by using the zigbee network, and wiring troubles caused by wired control can also be eliminated. With the device, networking is convenient to perform, a real-time embedding operating system is adopted, and the control instruction can be stably transmitted at high speed.

A kind of home gateway device based on zigbee and wifi network

Technical field

The present invention relates to the Home Gateway Technology field of Smart Home, especially relate to a kind of home gateway device based on zigbee and wifi network.

Background technology

Smart Home is one of main application of Internet of Things, it is take home dwelling as platform, have both building, network service, information household appliances, equipment automatization, the management that various housed devices are concentrated and control, thus create the living environment of comfortable, efficient, convenient, safety, environmental protection.Conventionally Smart Home is defined as to network and the comprehensive wiring technology utilized at present, the system various subsystems relevant with life staying idle at home being organically combined by family information management platform.

The intelligent domestic system of today has had abundanter content and function, and system configuration is also more and more higher.Intelligent domestic system comprises the systems such as intelligent lighting, intelligent door lock, electrically driven curtain, intelligent appliance control, gas leakage detection, fire protection warning, remote meter reading (water, electricity, coal gas) system, network communication, video request program, and increasing new term becomes the important component part of Smart Home gradually.Smart Home can bring following life facility to you:

(1) home appliance control: can carry out field control to housed devices such as light fixture, curtain, air-conditioning, refrigerator, TVs, the terminals such as computer, mobile phone and panel computer enter the Internet or communication network by high-speed wideband, carry out Long-distance Control.

(2) safety monitoring: the information of various alarm detectors is carried out Real-time Collection and made respective handling, as danger button, intrusion detection, combustible gas detecting, fire detection etc., notify in time owner by warning message, can also notifying cell estate management.

(3) safety monitoring: by security protection camera collection to realtime graphic be sent to owner's mobile phone terminal or panel computer end, allow and grasp at any time the situation in family in you of strange land.In for family, nobody does not look after and worries.

Summary of the invention

The technical problem to be solved in the present invention is, the present situation existing for Smart Home product, a kind of home gateway device based on zigbee and wifi network is provided, this gateway apparatus is by communicating between zigbee network and subset, connect without control bus, there is better flexibility and practicality, solve the problems such as intelligent domestic system installation and deployment are difficult in maintenance.

The technical scheme adopting is:

Based on a home gateway device for zigbee and wifi network, be that the order that adopts zigbee network to set up between home controller issues and state return data chain, forward the control command from mobile phone or panel computer end by home gateway device.This home gateway device is made up of external accessory and body, and external accessory mainly comprises power supply adaptor, netting twine; Body comprises shell, main control board.Described main control board is integrated power module, central processing unit, ethernet module, wifi module, memory cell, clock module, zigbee module.Power module, ethernet module, wifi module, memory cell, clock module, zigbee module are connected on power pins, Ethernet interface, wifi interface, bus, clock pin and the serial ports of central processing unit.Zigbee module connected with network cable, by zigbee module, the information of the subset transmission that zigbee module is housed is received, be connected with central processing unit serial ports through data protocol conversion, by the protocol convertor in zigbee module, the data that receive are carried out to protocol conversion, become serial ports data format to send to central processing unit data transaction and communicate.The order that subset control terminal sends connects self adaptation ethernet module by RJ-45 interface or wifi module transfers to central processing unit, and central processing unit is sent to subset by zigbee module after data are processed again, and subset is controlled.The DC-5.0 interface that described power module connects power supply adaptor provides 5V and 3.3V DC power supply for device.Described clock module provides system clock and local clock for device.

Its operating system of above-mentioned home gateway device is used uCOS-II real time operating system, is responsible for system task scheduling and memory management.

Above-mentioned home gateway device is provided with display module, uses LED to CPU ruuning situation, zigbee networking situation, and Ethernet ruuning situation, power work situation shows, and occurs when wrong and alarm in system.

Tool of the present invention has the following advantages and beneficial effect:

(1) easy to use: zigbee network organizing is without manual intervention, and automatic network-building, can repair after network goes wrong automatically.Intellectualizing system provides Remote interface, while going out, can also check and control equipment in family by surfing Internet with cell phone.

(2) Information service: obtain and exchange message in any place at any time by the Internet, can transmit multiple format message, from static text, figure to dynamic audio frequency, video communications, meet the demand of client to different message forms.

(3) safe: zigbee network can guarantee the fail safe of in-network message transmission, information adopts encrypted transmission.

(4) monitoring in real time: house intelligentized system can Real-Time Monitoring man in situation, fire preventing, gas poisoning, defence stranger invade and and alarm, effectively guarantee your house security.

(5) cost saving: intellectualizing system can help you automatically to close energy resource consumption equipment in family, reduces your living expenses.

Accompanying drawing explanation

Fig. 1 is structural representation block diagram of the present invention.

Embodiment

Based on a home gateway device for zigbee and wifi network, be that the order that adopts zigbee network to set up between home controller issues and state return data chain, forward the control command from mobile phone or panel computer end by home gateway device.This home gateway device is made up of external accessory and body, and external accessory mainly comprises power supply adaptor, netting twine; Body comprises shell, main control board.Described main control board is integrated power module, central processing unit, ethernet module, wifi module, memory cell, clock module, zigbee module (see figure 1).Power module, ethernet module, wifi module, memory cell, clock module, zigbee module are connected on power pins, Ethernet interface, wifi interface, bus, clock pin and the serial ports of central processing unit.Zigbee module connected with network cable, by zigbee module, the information of the subset transmission that zigbee module is housed is received, be connected with central processing unit serial ports through data protocol conversion, central processing unit uses cortex-m3 series LPC1788, for the processing of data and the conversion of agreement, by the protocol convertor in zigbee module, the data that receive are carried out to protocol conversion, become serial ports data format to send to central processing unit data transaction and communicate.The order that subset control terminal sends connects 10/100M self adaptation ethernet module by RJ-45 interface or wifi module transfers to central processing unit, central processing unit is sent to subset by zigbee module after data are processed again, and subset is controlled.Described power module adopts bistable to press the DC-5.0 interface of chip connection power supply adaptor for device provides 5V and 3.3V DC power supply, meets the requirement of different chips to power supply, assurance device stable operation.Described clock module is for device provides clock signal, carries out after frequency multiplication clock signal frequency multiplication, to 120MHz, guaranteeing the high-speed cruising of system, and simultaneity factor also provides local clock function, for application program provides clock reference.The memory of this home gateway device uses 512M mass storage, for keeping configuration file and service data, while again powering on, can continue operation after assurance system power failure.The operating system use uCOS-II real time operating system of this home gateway device, guarantees the efficient, quick, real-time of system task scheduling.This home gateway device is provided with display module and uses LED to show CPU ruuning situation, zigbee networking situation, Ethernet ruuning situation, power work situation, and occurs when wrong and alarm in system.

More in this manual used ethernet module, wifi module, zigbee module, power module, display module, etc. term; But do not get rid of the possibility that uses other terms.Use these terms to be only used to describe more easily and explain essence of the present invention; It is construed to any additional restriction is all contrary with spirit of the present invention.