Intelligent gas meter based on GSM (global system for mobile communication) communication

Abstract

The invention discloses an intelligent gas meter based on GSM (global system for mobile communication) communication. The intelligent gas meter comprises a controller, an EEPROM (electrically erasable programmable read-only memory) unit, a Hall sensing circuit, a GSM communication circuit, a card reading circuit and a real-time clock circuit, wherein the Hall sensing circuit sends a pulse signal when sensing magnetic steel on a rotating wheel of the intelligent gas meter, the GSM communication circuit is used for carrying out GSM communication with the outside, the card reading circuit reads data on an IC (integrated circuit) card and carries out corresponding data processing, the real-time clock circuit provides real-time clock for the controller, and the controller is used for carrying out primary accumulative metering on the flow value of gas stored in the EEPROM unit, reading the gas flow value from the EEPROM unit when the real-time clock reaches the preset time, and controlling the GSM communication circuit to send the gas flow value to a preset communication number. The intelligent gas meter has the advantages that the time calibration is not needed, and the meter reading can be simply and reliably realized on the gas flow data.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to an intelligent gas meter based on GSM communication. Background technique [0002] At present, due to the consideration of the country's energy control, some areas implement a policy of tiered gas prices. However, the settlement of tiered gas prices requires a reliable time guarantee to ensure the interests of both gas users and gas companies, so the calculation time of gas meters needs to be calibrated frequently. The calibration path is mostly carried out through the GSM (Global System for Mobile Communication, Global System for Mobile Communication) SMS channel, but the use of the GSM SMS channel will provide additional SMS communication fees for each calibration to the communication operator, and once the GSM SMS channel is blocked , For example, if the GSM signal cannot be found, the time calibration of the gas meter cannot be performed. If the time is not ...

AI Technical Summary

Problems solved by technology

Current gas meters usually use reed switches or direct-reading sensors to collect gas data. However, due to the special structure of reed switches, it is easy to cause physical damage due to assembly or welding during the production process, and during use. The number of physical attraction of the reed switch will be limited by its own structure, so its life is limited

However, the structural design of the direct-reading sensor is relatively complicated, and the hardware design is also relatively complicated, so the cost is relatively high.

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