Remote control intelligent gas meter concentrator power supply real-time detection and switching circuit

Abstract

The invention discloses a real-time detection and switching circuit for a power supply of a remote control intelligent gas meter concentrator. The real-time detection and switching circuit comprises an automatic voltage detection and switching circuit, a main power supply voltage detection circuit, a backup power supply voltage detection circuit, a first reversed stop circuit, a second reversed stop circuit and a main control MCU, wherein the two output ends of the automatic voltage detection and switching circuit are respectively connected with the second reversed stop circuit and the backup power supply voltage detection circuit; an external main power supply is connected with the main power supply voltage detection circuit and the first reversed stop circuit respectively; the output ends of the main power supply voltage detection circuit, the first reversed stop circuit, the second reversed stop circuit and the backup power supply voltage detection circuit are connected with the main control MCU. The real-time detection and switching circuit realizes power supplying detection of the main power supply and a backup power supply and realizes seamless switching of hardware; furthermore, the main power supply voltage detection circuit and the backup power supply voltage detection circuit are used for detecting the state of the power supplying circuit in real time and reporting the state of the power supplying circuit through the main control MCU, and safe power supplying of equipment is realized.

Description

technical field [0001] The invention relates to a real-time detection and switching circuit of a remote control intelligent gas meter concentrator power supply. Background technique [0002] A concentrator device is a central connection point device for connecting terminals, computers or communication devices. In a number of terminal-intensive areas, usually in order to reduce communication lines, the terminal is first connected to the concentrator, and then the concentrator is connected to the communication controller of the computer through a high-speed line. Therefore, the concentrator is also the best way to share lines and improve line utilization. An effective device. However, the existing concentrators for remote control of smart gas meters do not have the function of backup power supply; even if there is a function of backup power supply, the seamless switching of hardware cannot be realized, and the status of the power supply circuit cannot be monitored in real tim...

AI Technical Summary

Problems solved by technology

However, the existing concentrators for remote control of smart gas meters do not have the function of backup power supply; even if there is a function of backup power supply, the seamless switching of hardware cannot be realized, and the status of the power supply circuit cannot be monitored in real time.

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