CN110707785B - Primary and secondary type charging system of mining wireless methane sensor and power supply method thereof - Google Patents

The invention discloses a primary-secondary charging system of a mining wireless methane sensor and a power supply method thereof, and the primary-secondary charging system comprises a power supply module, a power supply distribution module, a wireless module, a power supply module, a CPU control module and a CAN bus module, wherein the power supply module is connected with the power supply distribution module, the wireless module and the power supply module are connected with the CPU control module, the power supply module is connected with the wireless module, and the wireless module is connected with the CAN bus module, so that wireless application of using the methane sensor underground and direct charging and discharging underground in a wireless application scene are realized, and the effects of well lifting maintenance, charging and detection are not needed.

矿用无线甲烷传感器子母式充电系统及其供电方法Mine-use wireless methane sensor mother-child charging system and power supply method thereof

技术领域Technical Field

本发明涉及矿用甲烷传感器领域，特别是一种矿用无线甲烷传感器子母式充电系统及其供电方法。The invention relates to the field of mine methane sensors, in particular to a mine wireless methane sensor parent-child charging system and a power supply method thereof.

背景技术Background Art

国内现有激光甲烷传感器大多采用有线传输方式，在矿山工作面上隅角处使用非常不便，少数厂家可以做到无线数据传输，但由于电池电量有限，经常需要替换传感器整机，替换下来到地面进行充电。井下频繁的移动充电导致传感器维护量过大。Most existing laser methane sensors in China use wired transmission, which is very inconvenient to use in the corners of mine working faces. A few manufacturers can achieve wireless data transmission, but due to limited battery power, the sensor needs to be replaced frequently and then charged on the ground. Frequent mobile charging underground leads to excessive sensor maintenance.

发明内容Summary of the invention

为解决现有技术的不足，本发明提供一种矿用无线甲烷传感器子母式充电系统及其供电方法。In order to solve the deficiencies of the prior art, the present invention provides a mother-child charging system for a wireless methane sensor for mining and a power supply method thereof.

为实现以上目的提供以下技术方案：To achieve the above objectives, the following technical solutions are provided:

矿用无线甲烷传感器子母式充电系统，包括电源模块、电源分配模块、无线模块、供电模块、CPU控制模块和CAN总线模块，所述电源模块与电源分配模块相连，所述电源分配模块、无线模块、供电模块与CPU控制模块相连，所述供电模块与无线模块相连，所述无线模块与CAN总线模块相连，所述电源模块包括U2降压电路和电源接口，所述电源分配模块包括二极管、U3充电电路、U4降压电路和U5升压电路，所述供电模块包括三极管和MOS管，CPU控制模块包括MCU，所述电源接口与U2降压电路连接，所述二极管、U3充电电路与U2降压电路连接，所述二极管、U4降压电路、U5升压电路与供电模块的三极管和MOS管相连，三极管与MCU相连，所述电池分配模块包括电池接口，所述电源模块通过模数转换器与MCU相连。The mother-and-child charging system of a wireless methane sensor for mining comprises a power module, a power distribution module, a wireless module, a power supply module, a CPU control module and a CAN bus module, wherein the power module is connected to the power distribution module, the power distribution module, the wireless module and the power supply module are connected to the CPU control module, the power supply module is connected to the wireless module, the wireless module is connected to the CAN bus module, the power module comprises a U2 step-down circuit and a power interface, the power distribution module comprises a diode, a U3 charging circuit, a U4 step-down circuit and a U5 step-up circuit, the power supply module comprises a triode and a MOS tube, the CPU control module comprises an MCU, the power interface is connected to the U2 step-down circuit, the diode and the U3 charging circuit are connected to the U2 step-down circuit, the diode, the U4 step-down circuit and the U5 step-up circuit are connected to the triode and the MOS tube of the power supply module, the triode is connected to the MCU, the battery distribution module comprises a battery interface, and the power module is connected to the MCU via an analog-to-digital converter.

矿用无线甲烷传感器子母式充电系统的供电方法，包括以下步骤：The power supply method of the parent-child charging system of the wireless methane sensor for mining includes the following steps:

S1：将传感器插入本安电源，电源模块的U2降压电路将5V电源输出给电源分配模块的U3充电电路，对电池进行充电；S1: Insert the sensor into the intrinsically safe power supply, and the U2 step-down circuit of the power module outputs 5V power to the U3 charging circuit of the power distribution module to charge the battery;

S2：此时电源分配模块的二极管导通电源分配模块的U4降压电路和U5升压电路获得5V电压，MOS管截止，电池不对外输出电量；S2: At this time, the diode of the power distribution module is turned on, and the U4 buck circuit and U5 boost circuit of the power distribution module obtain a 5V voltage, the MOS tube is cut off, and the battery does not output power to the outside;

S3：U2降压电路的模数转换器检测到电压，CPU控制模块的MCU将供电模式转换成母模式即充电模式，导通供电模块的三极管和MOS管，传感元件工作正常，记录传感元件数值，显示传感元件数值，开启无线模块接收检测数值，开启CAN总线模块将接收到的数值及检测到的数值打包上传到上一级设备；S3: The analog-to-digital converter of the U2 step-down circuit detects the voltage, and the MCU of the CPU control module converts the power supply mode to the mother mode, i.e., the charging mode, and turns on the transistors and MOS tubes of the power supply module. The sensor element works normally, records the sensor element value, displays the sensor element value, turns on the wireless module to receive the detection value, and turns on the CAN bus module to package the received value and the detected value and upload it to the upper-level device;

S4：本安电源充好后，拔出，U2降压电路无输出，U3充电电路停止对电池进行充电，电源分配模块的二极管截止，MOS管导通对外输出电量，U4降压电路和U5升压电路获得电池的电压；S4: After the intrinsically safe power supply is charged, it is unplugged, the U2 buck circuit has no output, the U3 charging circuit stops charging the battery, the diode of the power distribution module is cut off, the MOS tube is turned on to output power, and the U4 buck circuit and the U5 boost circuit obtain the battery voltage;

S5：U2降压电路的模数转换器检测不到电压，CPU控制模块的MCU将供电模式转换成子模式，导通供电模块的三极管和MOS管，传感元件工作正常，记录传感元件数值，显示传感元件数值，开启无线模块接收检测数值，关闭CAN总线模块。S5: The analog-to-digital converter of the U2 step-down circuit cannot detect voltage, the MCU of the CPU control module converts the power supply mode into a sub-mode, turns on the transistors and MOS tubes of the power supply module, the sensor element works normally, records the sensor element value, displays the sensor element value, turns on the wireless module to receive the detection value, and turns off the CAN bus module.

本发明的有益效果为：The beneficial effects of the present invention are:

实现井下使用甲烷传感器的无线应用及在无线应用场景中可以在井下直接进行充电、放电，无需升井维护、充电、检测的效果。The wireless application of methane sensors in underground mines can be realized, and in wireless application scenarios, charging and discharging can be performed directly underground without the need for lifting the well for maintenance, charging, and testing.

通过电源分配模块做到电源的电池充放电的瞬间切换，不影响整个系统的正常工作，同时对于电源切换的瞬间通过二极管的正反向切换保护了电池和本安电源，在煤矿领域做到本安性能。在通过MCU有对本安电源的有无确认电源是否切换，已实现这个系统真正的模式切块。这种切换机制，既保证了电源的瞬间切换，又保证了整个系统在煤矿井下使用的安全性，同时保证了系统软件模式的切换。The power distribution module can achieve instant switching of battery charging and discharging without affecting the normal operation of the entire system. At the same time, the forward and reverse switching of the diode at the moment of power switching protects the battery and the intrinsically safe power supply, achieving intrinsically safe performance in the coal mine field. The MCU can confirm whether the power supply is switched by checking whether there is an intrinsically safe power supply, and the real mode cutting of this system has been realized. This switching mechanism not only ensures the instant switching of the power supply, but also ensures the safety of the entire system in underground coal mines, and at the same time ensures the switching of the system software mode.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为矿用无线甲烷传感器子母式充电系统总体连接示意图；Figure 1 is a schematic diagram of the overall connection of the parent-child charging system of the mine wireless methane sensor;

图2为电源模块电路图；Figure 2 is a circuit diagram of a power module;

图3为电源分配模块电路图；FIG3 is a circuit diagram of a power distribution module;

图4为供电模块电路图；FIG4 is a circuit diagram of a power supply module;

图5为MCU端口示意图。Figure 5 is a schematic diagram of the MCU port.

具体实施方式DETAILED DESCRIPTION

为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

如图1所示的矿用无线甲烷传感器子母式充电系统，包括电源模块30、电源分配模块20、无线模块50、供电模块60、CPU控制模块10和CAN总线模块40，所述电源模块30与电源分配模块20相连，所述电源分配模块20、无线模块50、供电模块60与CPU控制模块10相连，所述供电模块60与无线模块50相连，所述无线模块50与CAN总线模块40相连，电源分配模块20与供电模块60相连，如图2所示的电源模块30包括U2降压电路和电源接口DC，如图3所示电源分配模块20包括二极管D12、U3充电电路、U4降压电路和U5升压电路，如图4所示供电模块60包括三极管Q2和MOS管Q3，如图5所示CPU控制模块包括MCU，所述电源接口DC与U2降压电路连接，所述二极管D12、U3充电电路与U2降压电路连接，所述二极管D12、U4降压电路、U5升压电路与供电模块60的三极管Q2和MOS管Q3相连，三极管Q2与MCU相连，所述电源模块30通过模数转换器AD与MCU相连，所述电池分配模块包括电池接口。The mother-child charging system of the wireless methane sensor for mining as shown in FIG1 includes a power module 30, a power distribution module 20, a wireless module 50, a power supply module 60, a CPU control module 10 and a CAN bus module 40. The power module 30 is connected to the power distribution module 20, the power distribution module 20, the wireless module 50, and the power supply module 60 are connected to the CPU control module 10, the power supply module 60 is connected to the wireless module 50, the wireless module 50 is connected to the CAN bus module 40, the power distribution module 20 is connected to the power supply module 60, and the power module 30 as shown in FIG2 includes a U2 step-down circuit and a power interface DC, as shown in FIG3 The power distribution module 20 includes a diode D12, a U3 charging circuit, a U4 buck circuit and a U5 boost circuit. As shown in FIG. 4, the power supply module 60 includes a transistor Q2 and a MOS tube Q3. As shown in FIG. 5, the CPU control module includes an MCU. The power interface DC is connected to the U2 buck circuit. The diode D12 and the U3 charging circuit are connected to the U2 buck circuit. The diode D12, the U4 buck circuit and the U5 boost circuit are connected to the transistor Q2 and the MOS tube Q3 of the power supply module 60. The transistor Q2 is connected to the MCU. The power module 30 is connected to the MCU through an analog-to-digital converter AD. The battery distribution module includes a battery interface.

其中，所述U2降压电路将井下24V的本安电源转换成传感器系统用的5V电源。The U2 step-down circuit converts the 24V intrinsically safe power supply underground into a 5V power supply for the sensor system.

其中，所述U4降压电路将5V电源转换成4.2-3.3V电源供电池缺电状态正常工作。The U4 step-down circuit converts the 5V power supply into a 4.2-3.3V power supply to ensure normal operation when the battery is out of power.

CAN总线模块使用CTM8251KT，三极管Q2使用MMBT2222，MOS管Q3使用AO4459，U3充电电路为充电芯片tp4056，可以对电池进行充电电池冲完可以关断，U4降压电路为降压芯片TPS73633，U5升压电路为升压模块TPS6122，U2降压电路为降压芯片LM2842-ADJ，MCU芯片STM32F103VCT6。The CAN bus module uses CTM8251KT, the transistor Q2 uses MMBT2222, the MOS tube Q3 uses AO4459, the U3 charging circuit is the charging chip tp4056, which can charge the battery and can be turned off after the battery is charged, the U4 buck circuit is the buck chip TPS73633, the U5 boost circuit is the boost module TPS6122, the U2 buck circuit is the buck chip LM2842-ADJ, and the MCU chip is STM32F103VCT6.

矿用无线甲烷传感器子母式充电系统的供电方法，包括以下步骤：The power supply method of the parent-child charging system of the wireless methane sensor for mining includes the following steps:

S1：将传感器插入本安电源，电源模块30的U2降压电路将5V电源输出给电源分配模块20的U3充电电路，对电池进行充电；S1: Insert the sensor into the intrinsically safe power supply, and the U2 step-down circuit of the power module 30 outputs 5V power to the U3 charging circuit of the power distribution module 20 to charge the battery;

S2：此时电源分配模块20的二极管导通电源分配模块20的U4降压电路和U5升压电路获得5V电压，MOS管Q3截止，电池不对外输出电量；S2: At this time, the diode of the power distribution module 20 is turned on, the U4 buck circuit and the U5 boost circuit of the power distribution module 20 obtain a 5V voltage, the MOS tube Q3 is turned off, and the battery does not output power to the outside;

S3：U2降压电路的模数转换器AD检测到电压，CPU控制模块10的MCU将供电模式转换成母模式即充电模式，导通供电模块60的三极管Q2和MOS管Q3，传感元件工作正常，记录传感元件数值，显示传感元件数值，开启无线模块50接收检测数值，开启CAN总线模块40将接收到的数值及检测到的数值打包上传到上一级设备；S3: The analog-to-digital converter AD of the U2 step-down circuit detects the voltage, the MCU of the CPU control module 10 converts the power supply mode into the mother mode, i.e., the charging mode, turns on the transistor Q2 and the MOS tube Q3 of the power supply module 60, the sensor element works normally, records the sensor element value, displays the sensor element value, turns on the wireless module 50 to receive the detection value, turns on the CAN bus module 40 to package the received value and the detected value and upload it to the upper-level device;

S4：本安电源充好后，拔出，U2降压电路无输出，U3充电电路停止对电池进行充电，电源分配模块20的二极管截止，MOS管Q3导通对外输出电量，U4降压电路和U5升压电路获得电池的电压；S4: After the intrinsically safe power supply is charged, it is unplugged, the U2 buck circuit has no output, the U3 charging circuit stops charging the battery, the diode of the power distribution module 20 is cut off, the MOS tube Q3 is turned on to output power, and the U4 buck circuit and the U5 boost circuit obtain the battery voltage;

S5：U2降压电路的模数转换器AD检测不到电压，CPU控制模块10的MCU将供电模式转换成子模式，导通供电模块60的三极管Q2和MOS管Q3，传感元件工作正常，记录传感元件数值，显示传感元件数值，开启无线模块50接收检测数值，关闭CAN总线模块40。S5: The analog-to-digital converter AD of the U2 step-down circuit cannot detect voltage, the MCU of the CPU control module 10 converts the power supply mode into a sub-mode, turns on the transistor Q2 and the MOS tube Q3 of the power supply module 60, the sensor element works normally, records the sensor element value, displays the sensor element value, turns on the wireless module 50 to receive the detection value, and turns off the CAN bus module 40.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.