阅读说明：本技术 车载高压氢气储罐用在线监测系统 (On-line monitoring system for vehicle-mounted high-pressure hydrogen storage tank ) 是由 蒋华 于 2019-10-30 设计创作，主要内容包括：本发明涉及一种车载高压氢气储罐用在线监测系统,包括压力传感器、温度传感器、MCU处理器和无线数据通讯单元,所述压力传感器和温度传感器设置氢气储罐中,所述压力传感器和温度传感器的信号输出端经运算放大器、模数转换器接入所述MCU处理器的输入端,所述MCU处理器的输出端与用于通信连接服务器的所述无线数据通讯单元相连。本发明解决了高压氢气储罐的实时监测问题,便于远程进行监控和安全控制,同时适应于外部温度自动适应储罐内气压的变化值,从而对储罐异常情况进行更为安全可靠的检测。(The invention relates to an on-line monitoring system for a vehicle-mounted high-pressure hydrogen storage tank, which comprises a pressure sensor, a temperature sensor, an MCU (microprogrammed control unit) processor and a wireless data communication unit, wherein the pressure sensor and the temperature sensor are arranged in the hydrogen storage tank, the signal output ends of the pressure sensor and the temperature sensor are connected to the input end of the MCU processor through an operational amplifier and an analog-to-digital converter, and the output end of the MCU processor is connected with the wireless data communication unit for being in communication connection with a server. The invention solves the problem of real-time monitoring of the high-pressure hydrogen storage tank, is convenient for remote monitoring and safety control, and is simultaneously suitable for the external temperature to automatically adapt to the change value of the air pressure in the storage tank, thereby carrying out safer and more reliable detection on the abnormal condition of the storage tank.)

1. The utility model provides an on-vehicle high pressure hydrogen on-line monitoring system for storage tank, its characterized in that, includes pressure sensor, temperature sensor, MCU treater and wireless data communication unit, pressure sensor and temperature sensor set up in the hydrogen storage tank, pressure sensor and temperature sensor's signal output part inserts through operational amplifier, analog-to-digital converter the input of MCU treater, the output of MCU treater with be used for the communication connection server wireless data communication unit links to each other.

2. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank as claimed in claim 1, further comprising a data display unit, wherein the data display unit is connected with the output end of the MCU and used for displaying the received pressure and temperature signals, and a warning lamp is further arranged on the data display unit.

3. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank as claimed in claim 1 or 2, wherein the MCU processor sends out early warning prompt and processing instruction according to the on-site grading conditions of the returned pressure and temperature signals.

4. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank of claim 3, wherein a change threshold of the pressure in the tank is configured in the MCU processor, the system calls temperature data in the external environment through a bus, the calculation of the pressure in the tank at the current ambient temperature is realized in the MCU processor by combining with the initial pressure in the hydrogen storage tank, the calculated pressure in the tank is compared with the current pressure detected by the pressure sensor, and when the difference between the two exceeds the set change threshold, a field alarm is given, and data are fed back to a remote server through the wireless data communication unit and the alarm is given.

5. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank as claimed in claim 3, wherein a maximum threshold value of the temperature in the tank is configured in the MCU processor, the current temperature detected by the temperature sensor is compared with the maximum threshold value temperature, and if the current temperature exceeds the maximum threshold value temperature, the MCU processor gives an on-site alarm and feeds back data to a remote server through the wireless data communication unit and gives an early warning.

6. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank as claimed in claim 3, wherein a maximum threshold value of the pressure in the tank is configured in the MCU processor, the current pressure detected by the pressure sensor is compared with the maximum threshold value pressure, and if the current pressure exceeds the maximum threshold value pressure, the MCU processor gives an on-site alarm and feeds back data to a remote server through the wireless data communication unit and gives an early warning.

7. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank as claimed in claim 1, further comprising a positioning unit, wherein the positioning unit is connected with the MCU processor and used for positioning the specific position of the hydrogen storage tank and uploading the specific position to a remote server through the wireless communication unit, and the positioning unit adopts a GPS positioning module and/or a Beidou positioning module.

8. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank as claimed in claim 1, wherein the MCU processor is a microprocessor based on an ARM7 kernel architecture.

9. The on-line monitoring system for the vehicle-mounted high-pressure hydrogen tank as claimed in claim 1, wherein the wireless data communication unit is one of a 2G, 3G, 4G, 5G, NB data communication module or a WLAN module.

Technical Field

The invention relates to a safety monitoring technical system of a high-pressure storage tank, in particular to an on-line monitoring system for a vehicle-mounted high-pressure hydrogen storage tank.

Background

The high-pressure hydrogen storage tank can be influenced by various external conditions, particularly temperature, collision and the like, when the high-pressure hydrogen storage tank is transported, but the whole performance of the high-pressure hydrogen storage tank is intuitively reflected in two aspects of temperature and pressure change of the storage tank, and if real-time pressure detection and temperature detection can be carried out on the high-pressure hydrogen storage tank, the safety condition of the hydrogen storage tank can be detected.

Disclosure of Invention

The invention aims to provide an on-line monitoring system for a vehicle-mounted high-pressure hydrogen storage tank, which solves the problem of real-time monitoring of the high-pressure hydrogen storage tank, facilitates remote monitoring and safety control, and is adaptive to external temperature to automatically adapt to the change value of the air pressure in the storage tank, so that the abnormal condition of the storage tank can be detected more safely and reliably.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides an on-line monitoring system for a vehicle-mounted high-pressure hydrogen storage tank, which comprises a pressure sensor, a temperature sensor, an MCU (microprogrammed control unit) processor and a wireless data communication unit, wherein the pressure sensor and the temperature sensor are arranged in the hydrogen storage tank, the signal output ends of the pressure sensor and the temperature sensor are connected to the input end of the MCU processor through an operational amplifier and an analog-to-digital converter, and the output end of the MCU processor is connected with the wireless data communication unit for being in communication connection with a server.

For the above technical solution, the applicant has further optimization measures.

The device further comprises a data display unit, wherein the data display unit is connected with the output end of the MCU and used for displaying the received pressure and temperature signals, and an alarm lamp is further arranged on the data display unit.

Further, the MCU processor sends out early warning prompts and processing instructions according to the on-site grading conditions of the returned pressure and temperature signals.

Furthermore, a change threshold of the pressure in the tank is configured in the MCU processor, the system calls temperature data in the external environment through a bus, the calculation of the pressure in the tank at the current environment temperature is realized in the MCU processor by combining with the initial pressure in the hydrogen storage tank, the calculated pressure in the tank is compared with the current pressure detected by the pressure sensor, and when the difference value between the two exceeds the set change threshold, a field alarm is sent out, and data are fed back to a remote server through the wireless data communication unit and early warning is given.

Further, a maximum threshold value of the temperature in the tank is configured in the MCU processor, the current temperature detected by the temperature sensor is compared with the maximum threshold value temperature, and if the current temperature exceeds the maximum threshold value temperature, the MCU processor sends out a field alarm and feeds back data to a remote server through the wireless data communication unit and gives an early warning.

Further, a maximum threshold value of the pressure in the tank is configured in the MCU processor, the current pressure detected by the pressure sensor is compared with the maximum threshold value pressure, if the current pressure exceeds the maximum threshold value pressure, the MCU processor sends out a field alarm, feeds back data to a remote server through the wireless data communication unit and gives an early warning.

Further, the hydrogen storage tank positioning system further comprises a positioning unit, wherein the positioning unit is connected with the MCU processor and used for positioning the specific position of the hydrogen storage tank and uploading the specific position to a remote server through the wireless communication unit, and the positioning unit adopts a GPS positioning module and/or a Beidou positioning module.

Further, the MCU processor is a microprocessor based on an ARM7 kernel architecture.

Further, the wireless data communication unit is one of a 2G, 3G, 4G, 5G, NB data communication module or a WLAN module.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

according to the on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank, disclosed by the invention, the problems of electrical intrinsic safety and explosion prevention in a hydrogen environment can be solved by monitoring the air pressure and temperature in the hydrogen storage tank in real time, the numerical values of the air pressure and the temperature are displayed through electronic numbers, the data precision is high, and no artificial reading error exists. Moreover, the collected data are transmitted to the server platform through wireless signals, the data are automatically recorded, a report is generated, and meanwhile, whether the pressure change is overlarge or not is detected by combining the external environment temperature change, so that the safety and the reliability are further improved as the supplement of monitoring safety data.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a system block diagram of an on-board high-pressure hydrogen storage tank on-line monitoring system according to an embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The embodiment describes an on-line monitoring system for a vehicle-mounted high-pressure hydrogen storage tank, as shown in fig. 1, the on-line monitoring system comprises a pressure sensor, a temperature sensor, an MCU processor and a wireless data communication unit, wherein the pressure sensor and the temperature sensor are arranged in the hydrogen storage tank, signal output ends of the pressure sensor and the temperature sensor are connected to an input end of the MCU processor through an operational amplifier and an analog-to-digital converter, an output end of the MCU processor is connected to the wireless data communication unit for being in communication connection with a server, and the wireless data communication unit is one of a 2G, 3G, 4G, 5G, NB data communication module or a WLAN module. The MCU processor is a microprocessor based on an ARM7 kernel architecture.

In order to display the pressure data and the temperature information in a digital mode, a data display unit is further arranged in the system, the data display unit is connected with the output end of the MCU and used for displaying the received pressure and temperature signals, and an alarm lamp is further arranged on the data display unit. And the MCU processor sends out early warning prompts and processing instructions according to the on-site grading conditions of the returned pressure and temperature signals.

The MCU processor is configured with a maximum threshold value of the temperature in the tank, the current temperature detected by the temperature sensor is compared with the maximum threshold value temperature, if the current temperature exceeds the maximum threshold value temperature, the MCU processor sends out a field alarm and feeds back data to a remote server through the wireless data communication unit and gives an early warning.

Correspondingly, the MCU processor is also provided with a maximum threshold value of the pressure in the tank, the current pressure detected by the pressure sensor is compared with the maximum threshold value pressure, and if the current pressure exceeds the maximum threshold value pressure, the MCU processor sends out a field alarm and feeds back data to a remote server through the wireless data communication unit and gives an early warning.

For the pressure influence of the external environment in the storage tank, a change threshold of the pressure in the tank is configured in the MCU processor, the system calls temperature data in the external environment through a bus, the calculation of the pressure in the tank at the current environment temperature is realized in the MCU processor by combining with the initial pressure in the hydrogen storage tank, the calculated pressure in the tank is compared with the current pressure detected by the pressure sensor, and when the difference value between the two exceeds the set change threshold, a field alarm is sent out, and data are fed back to a remote server through the wireless data communication unit and early warning is given. Normally, the pressure in the hydrogen storage tank should be allowed to change to some extent due to the influence of the temperature change of the external environment, but if the change is too large, the change is usually caused by the abnormal ambient temperature, so that the monitoring of the pressure change value can be used as the supplement of safety detection data, and the working safety of the system is better protected.

The system also comprises a positioning unit (a Beidou positioning unit can also be adopted), wherein the positioning unit is connected with the MCU processor and is used for positioning the specific position of the hydrogen storage tank and uploading the specific position to a remote server through the wireless communication unit. The remote end of being convenient for learns hydrogen storage tank position in real time, can carry out the quick response to the abnormal conditions and handle, the positioning unit adopts GPS orientation module and/or big dipper orientation module.

In conclusion, the on-line monitoring system for the vehicle-mounted high-pressure hydrogen storage tank can solve the electrical intrinsic safety explosion-proof problem in the hydrogen environment by monitoring the air pressure and temperature in the hydrogen storage tank in real time, and has the advantages of high data precision and no artificial reading error by displaying the numerical values of the air pressure and the temperature through electronic numbers. Moreover, the collected data are transmitted to the server platform through wireless signals, the data are automatically recorded, a report is generated, and meanwhile, whether the pressure change is overlarge or not is detected by combining the external environment temperature change, so that the safety and the reliability are further improved as the supplement of monitoring safety data.

Further, adopt lightweight design, use PA66+ graphite alkene as the instrument casing and increase the electric conductivity to accord with the explosion-proof electric shell requirement of hydrogen environment, the weight ratio tradition metal casing lightens by a wide margin simultaneously.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.