Monitoring control circuit for fire-fighting motor pump

Abstract

The utility model provides a fire-fighting motor pump monitoring control circuit, which belongs to the technical field of fire-fighting equipment controllers and comprises a first power supply processing circuit, a battery charging interface circuit, a 4G communication module, a temperature sensor, a display module, a buzzer, a second power supply processing circuit, a liquid level sensor and a processor unit. The liquid level sensor comprises an engine oil liquid level sensor, and one end of the first power supply processing circuit is connected with an external power supply; and the battery charging interface circuit, the 4G communication module, the temperature sensor, the display module, the buzzer, the second power supply processing circuit and the engine oil liquid level sensor are connected in parallel between the other end and the processor unit. According to the utility model, the voltage and temperature of the starting battery of the fire-fighting motor pump and the stock of oil in the gasoline tank and the engine oil tank can be remotely monitored, the charging process can be remotely started and terminated, the labor and time cost for on-site actual inspection is saved, and the fire-fighting motor pump charging system has good practicability and economical efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment controllers, in particular to a fire-fighting motor pump monitoring and control circuit. Background Art

[0002] In daily work, the fire motor pump is often in a low-power state, and needs to be started by hand. Sometimes there is even a lack of oil, which will cause the motor pump to be unable to start, thus affecting the work progress. The common method is manual on-site inspection, deciding whether to charge according to the battery temperature and power, and deciding whether to refuel according to the oil level in the tank. This method wastes a lot of human resources and time costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to remotely realize real-time monitoring of the power, oil volume and battery temperature of a fire motor pump and remote control charging of the battery. In view of the deficiencies of the prior art, a monitoring and control circuit for a fire motor pump is provided.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A fire-fighting motor pump monitoring and control circuit comprises a first power supply processing circuit, a battery charging interface circuit, a 4G communication module, a temperature sensor, a display module, a buzzer, a second power supply processing circuit, a liquid level sensor and a processor unit, wherein the liquid level sensor comprises an engine oil level sensor, one end of the first power supply processing circuit is connected to an external power supply, and the other end is connected in parallel with the processor unit to the battery charging interface circuit, the 4G communication module, the temperature sensor, the display module, the buzzer, the second power supply processing circuit and the engine oil level sensor.

[0006] Furthermore, the processor unit includes a main control chip and peripheral circuits.

[0007] Furthermore, the liquid level sensor also includes a gasoline liquid level sensor.

[0008] Furthermore, the processor unit is connected to the fire motor pump via the battery charging interface circuit, and the processor unit collects the stock information of the engine oil and gasoline in the oil tank of the fire motor pump via the engine oil level sensor and the gasoline level sensor.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] 1) The data collected by the liquid level sensor is converted by the processor unit and sent to the client by the 4G communication module, realizing real-time monitoring of the oil and gasoline reserves in the fire motor pump. There is no need to manually open the cover one by one for monitoring, which saves a lot of time and improves work efficiency;

[0011] 2) The battery charging interface circuit can automatically close the charging circuit when the battery power is low, or the client can remotely control the battery charging interface circuit to start charging through the 4G module and the processor unit. The temperature sensor realizes real-time monitoring of the battery temperature of the fire motor pump. When the temperature is too high, the processor unit will cut off the battery charging interface circuit and turn on the buzzer to prevent the battery from overheating and causing a fire;

[0012] 3) The first power processing circuit and the second power processing circuit not only step down the voltage step by step, but also have the effects of overcurrent protection, overheating shutdown protection, output overvoltage protection and input undervoltage protection, providing effective guarantee for the safe and stable operation of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A connection block diagram of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of a battery charging interface circuit according to an embodiment of the utility model;

[0015] Figure 3 is a schematic diagram of a first power processing circuit according to an embodiment of the utility model;

[0016] Figure 4 It is a schematic diagram of a second power processing circuit according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0017] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0018] Example 1

[0019] See also Figure 1-Figure 4A fire-fighting motor pump monitoring and control circuit comprises a first power supply processing circuit, a battery charging interface circuit, a 4G communication module, a temperature sensor, a display module, a buzzer, a second power supply processing circuit, a liquid level sensor and a processor unit, wherein the liquid level sensor is an engine oil level sensor and an engine oil sensor, and the processor unit comprises a main control chip and a peripheral circuit, one end of the first power supply processing circuit is connected to an external power supply, and the other end is connected in parallel with the processor unit to the battery charging interface circuit, the 4G communication module, the temperature sensor, the display module, the buzzer, the second power supply processing circuit and the engine oil level sensor.

[0020] The 4G communication module is FS704UM from Shenzhen Feisichuang Electronic Technology Co., Ltd.

[0021] The temperature sensor is DHT11 from Shenzhen Youxin Electronic Technology Co., Ltd., with a measurement range of -20°C to 60°C and a measurement accuracy of ±2°C.

[0022] The display module is GMO09601 produced by Shenzhen Linxin Century Electronics Co., Ltd., a 0.96-inch white light liquid crystal display screen with a resolution of 128 pixels×64 pixels.

[0023] The buzzer is an active buzzer HSDZ-9055 produced by Shenzhen Hesheng Electronics Co., Ltd.

[0024] The processor unit includes a main control chip and peripheral circuits, and the main control chip adopts the STM32 embedded single-chip microcomputer of STMicroelectronics.

[0025] The engine oil sensor adopts the non-contact liquid level sensor XKC-Y23A of Shenzhen Xingkechuang Technology Co., Ltd., with a liquid level accuracy of ±3mm, a sensing thickness of ≤15mm, and a working environment temperature of -20℃~105℃; the gasoline sensor adopts the oil floating liquid level sensor A5-125 of Zhejiang Shengwang Sensing Technology Co., Ltd., with a liquid level accuracy of 10mm~40mm, and a working environment temperature of -40℃~85℃.

[0026] The first power processing circuit is connected to a 12V external power supply and internally adopts the SCT2450STERDCDC high power density fully integrated synchronous step-down DC / DC converter of Xinzhou Technology Co., Ltd., which provides over-current hiccup protection, over-temperature shutdown protection, output over-voltage protection and input under-voltage protection.

[0027] The second power processing circuit is connected to the first power processing circuit. The circuit adopts the AMS1117-3.3V positive low-dropout regulator of Shenzhen Kebi Electronic Technology Co., Ltd. to output a fixed 3.3V DC power, and has over-current protection and short-circuit protection functions.

[0028] When the fire motor pump control circuit is working, the temperature sensor collects the temperature of the fire motor pump battery and transmits it to the processor unit in real time. When the battery power of the fire motor pump is too low, the battery charging interface circuit will automatically connect to start charging and automatically disconnect when the power exceeds the circuit design. The client can also use the 4G communication module and the processor unit to remotely control the switch of the battery charging interface circuit. The real-time temperature, voltage and power information of the fire motor pump battery are displayed in real time on the display module and the client. The oil level sensor and the gasoline level sensor monitor the remaining oil in the gasoline tank and the oil tank in real time respectively, send the data to the processor unit, and display it in real time on the client through the 4G communication module. When the battery temperature of the fire-fighting motor pump exceeds the preset value or the oil level in the oil tank is lower than the preset value or the oil level in the gasoline tank is lower than the preset value, the corresponding sensor will transmit data to the processor unit, and the battery charging interface circuit will automatically disconnect due to overheating of the fire-fighting motor pump battery. The processor unit controls the buzzer to turn on and displays warning information on the display module and the client respectively, which is manifested as the display module displaying the number of warning messages, and the client displaying the specific value or liquid level abnormality at the corresponding sensor information.

[0029] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention, which are only used to illustrate the technical solution of the present invention rather than to limit it. Any modification, improvement, other modification or equivalent replacement made to the technical solution of the present invention by ordinary technicians in this field, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be included in the protection scope of the present invention.

Claims

1. A fire motor pump monitoring and control circuit, characterized in that: It includes a first power supply processing circuit, a battery charging interface circuit, a 4G communication module, a temperature sensor, a display module, a buzzer, a second power supply processing circuit, a liquid level sensor and a processor unit, the liquid level sensor includes an engine oil level sensor, one end of the first power supply processing circuit is connected to an external power supply, and the other end is connected in parallel with the processor unit to the battery charging interface circuit, the 4G communication module, the temperature sensor, the display module, the buzzer, the second power supply processing circuit and the engine oil level sensor.

2. The fire-fighting motor pump monitoring and control circuit according to claim 1, characterized in that: The processor unit includes a main control chip and peripheral circuits.

3. The fire-fighting motor pump monitoring and control circuit according to claim 1, characterized in that: The liquid level sensor also includes a gasoline liquid level sensor.

4. The fire-fighting motor pump monitoring and control circuit according to claim 3 is characterized in that: The processor unit is connected to the fire motor pump through the battery charging interface circuit, and the processor unit collects the stock information of the engine oil and gasoline in the oil tank of the fire motor pump through the engine oil level sensor and the gasoline level sensor.

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