Patent ID: 11971280
Assignee: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A metering and correcting method for an ultrasonic gas meter based on smart gas Internet of Things (IoT), wherein the metering and correcting method is implemented on a smart gas device management platform of a metering and correcting system for an ultrasonic gas meter based on smart gas IoT and comprises:
in response to receiving a co-correction request from the ultrasonic gas meter, obtaining ultrasonic data and gas medium data, wherein the co-correction request is issued when a self-correction signal stability of the ultrasonic gas meter does not meet a first preset condition, and the self-correction signal stability is determined by the ultrasonic gas meter based on a self-correction strategy; wherein the self-correction strategy includes at least a self-correction algorithm and an algorithm depth, and determining the self-correction signal stability by the ultrasonic gas meter based on the self-correction strategy includes:
obtaining a preset amount of reading data of the ultrasonic gas meter in a historical moment as a reading data set, the preset amount being related to the algorithm depth; and
determining the self-correction signal stability by the self-correction algorithm based on the reading data set;

determining a target signal stability value of the ultrasonic gas meter based on the ultrasonic data and the gas medium data;
in response to the target signal stability value not meeting a second preset condition, determining a co-correction strategy and sending the co-correction strategy to the ultrasonic gas meter; and
evaluating a correction accuracy of the ultrasonic gas meter for performing a correction process based on the co-correction strategy.