Gas meter external safety power supply system and method

Abstract

The invention discloses an external safety power supply system for a gas meter. The external safety power supply system at least comprises the gas meter, an intrinsic safety power source and a cloud system. The intrinsically safe power supply at least comprises an intrinsically safe transformer and an ID chip, the power input end of the intrinsically safe transformer is connected with commercial power and used for converting the commercial power into intrinsically safe direct current, and the power output end of the intrinsically safe transformer is connected to a power interface of the ID chip and a power interface of the gas meter. The ID chip is at least used for receiving an identity verification request message sent by the gas meter and making a reply; the gas meter at least comprises an MCU and a power module, the MCU is in communication connection with the ID chip, and the power module is used for supplying power to the gas meter; the cloud system is in two-way communication connection with the gas meter, and the cloud system is at least used for storing report data of the gas meter, issuing a gas meter operation instruction and receiving and feeding back an alarm prompt. Safe power supply of the gas meter is guaranteed, use of disposable batteries is reduced, and the frequency of interaction with a cloud system is increased.

Description

technical field [0001] The invention relates to the technical field of gas meters, in particular to an external safety power supply system and method for a gas meter. Background technique [0002] At present, most of the civil gas metering instruments are powered by 4 AA alkaline batteries or primary lithium primary batteries. The advantage is that it is intrinsically safe to use gas. Low efficiency and lack of real-time performance; and dry batteries are replaced at least once a year, and used batteries are hazardous waste, which pollutes the environment and does not conform to the current concept of low-carbon environmental protection in my country. However, the conventional external power supplies on the market do not meet the requirements of intrinsically safe design first, and the quality is uneven. SUMMARY OF THE INVENTION [0003] In order to overcome the deficiencies of the above technologies, the present invention provides an external safety power supply system an...

AI Technical Summary

Problems solved by technology

[0002] Most of the civil gas metering instruments currently use 4 AA alkaline batteries or disposable lithium primary batteries. The advantage is that the gas is intrinsically safe to use. The disadvantage is that the gas meter can only perform wake-up communication once a day, and the interaction with the cloud system Low efficiency and lack of real-time performance; and dry batteries should be replaced at least once a year. Waste batteries are hazardous waste, which pollutes the environment and does not conform to my country's current concept of low-carbon environmental protection.

However, the conventional external power supplies on the market do not meet the requirements of intrinsically safe design, and there are situations of uneven quality.

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