Wireless Quick Meter Reading Method for Metering Instruments

Abstract

The invention discloses a wireless rapid meter-reading method for a metering instrument. The method comprises the following steps that a main station transmits a main station data request frame to a GPRS (General Packet Radio Service) module; the GPRS module judges the type of the main station data request frame; the GPRS module performs metering instrument judgment according to the main station data request frame; the GPRS module performs linking judgment according to the main station data request frame; the GPRS module acquires a communication baud rate of a target metering instrument; the GPRS module builds an auxiliary data request frame according to the acquired communication baud rate of the target metering instrument and data required by a main station, and transmits the auxiliary data request frame to the target metering instrument; the GPRS module receives data transmitted by the target metering instrument, and builds a transmission frame to transmit the data to the main station. The method is suitable for a standard or non-standard communication protocol, and has good universality. Only twice data interaction is performed between the main station and the GPRS module, and remaining steps are all implemented by the GPRS module instead, so that the data copying-reading time is shortened, and the copying-reading efficiency is increased.

Description

technical field [0001] The invention specifically relates to a wireless fast meter reading method for a measuring instrument. Background technique [0002] In the existing measuring instrument reading system, it is generally composed of a master station, a GPRS module and a measuring instrument. The specific network structure diagram is as follows figure 1 Shown: the master station is used for data reading, the GPRS module is used to obtain the data of the meter, and transmit it to the master station through wireless communication, the master station and GPRS are connected by wireless communication; the GPRS module and several meter meters It is connected through RS485 communication line to obtain the data of each meter and upload it to the master station. The GPRS module is generally arranged around the measuring instrument, and the master station is generally far away from the GPRS module and the measuring instrument. [0003] During the reading process of the existing m...

AI Technical Summary

Problems solved by technology

Through the above data transmission process, it can be known that each frame of data sent between the master station and the meter must be converted by the GPRS module. The data transmission time includes the wireless transmission time between the master station and the GPRS module, and the GPRS module protocol. The conversion time and the wired transmission time between the GPRS module and the meter, so the data copying method of this meter takes a long time and has low efficiency

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