Meter reading system, communication method, and communication forwarding device for metering instruments

Abstract

The invention discloses a meter reading system of metering devices. The meter reading system comprises a concentrator, a plurality of metering devices, and at least one communication forwarding apparatus. The communication forwarding apparatus is used for receiving communication information of interaction between the concentrator and the plurality of metering devices when the concentrator and the plurality of metering devices carry out communication information interaction, analyzing the communication information to obtain a network address or serial number of a receiver, determining whether response information from the information receiver is received within a preset time interval, determining communication success between the concentrator and the plurality of metering devices if so, and determining a communication failure between the concentrator and the plurality of metering devices if not, forwarding the communication information to the information receiver. The network address or serial number of the information receiver is one obtained based on the analysis. In addition, the invention also discloses a communication forwarding apparatus and a communication method of a meter reading system of metering devices. Therefore, the communication efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of wireless meter reading, in particular to a meter reading system for measuring instruments, a communication method and a communication forwarding device. Background technique [0002] The ultra-wireless transmission (LoRa) network equipment based on spread spectrum technology has high receiving sensitivity, low rate, good error correction, and long communication distance; at present, the star topology network architecture is the main one, and the LoRa concentrator (or LoRa gateway) As the center accesses the WAN network, a LoRa concentrator corresponds to multiple sets of LoRa terminals. The LoRa concentrator is responsible for directly communicating with the LoRa terminal, forwarding the LoRa terminal data to the Internet and the background server; or, the LoRa concentrator directly forwards the data sent by the background server Command or data to LoRa terminal. For this kind of wireless network, when t...

AI Technical Summary

Problems solved by technology

In addition, due to the complex floors of the residential area, the gas pipelines have been arranged in advance, without considering the wireless communication requirements, and after being blocked by multiple walls, it is often the case that the communication between the LoRa gas meter and the LoRa concentrator cannot be communicated, resulting in a low rate of meter reading. A small number of users cannot read the gas consumption data and status of LoRa gas meters, and cannot receive relevant control commands from the system platform

Inconvenience related to malfunctions such as automatic valve closing of residents' gas meters

In addition, if the wireless router or wireless transponder of the existing technical solution is used, it is necessary to change the related software of the LoRa terminal, LoRa concentrator or background server. The network protocol is relatively complicated and affects the communication efficiency.

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