Online measurement device and measurement method thereof for pipeline flux instrument

Abstract

The invention discloses an online measurement device and a measurement method thereof for a pipeline flux instrument, comprising a detection terminal and a background management unit; the detection terminal comprises a flowmeter, a camera, a DSP module and a communication unit connected with the DSP module; the background management unit comprises a central control unit and a communication module connected with the central control unit; the detection terminal and the background unit carry out data communication by a GPRS wireless network and / or an Internet; the output terminals of the camera and the flowmeter are respectively connected with the image signal input terminal and the flux value signal input terminal of the DSP module; the camera of the detection terminal right faces to the dial plate of the instrument to be measured; the flowmeter is arranged on the pipeline; and the background management unit respectively obtains the accumulated flux in the pipeline within unit time by the camera and the flowmeter in the detection terminal so as to calculate the measurement error of the instrument to be measured.

Description

technical field [0001] The invention relates to the field of standard detection of flow meters, in particular to an on-line verification device for pipeline flow meters and an on-line verification method using the device. Background technique [0002] Various flow meters are widely used in various industries. With the extension of the service life of the meters, the measurement accuracy of the meters will change, which will affect the trade settlement. Therefore, according to the relevant regulations, the manufacturers and measurement departments of the meters need The indication error of the instrument shall be regularly checked for instrument accuracy in accordance with the regulations formulated by the relevant departments. However, because the installation and disassembly of the instrument is inconvenient, and the disassembly of the instrument will also cause inconvenience to the normal production of the user unit, so an online non-invasive instrument verification system...

AI Technical Summary

Problems solved by technology

Although this detection device uses DSP technology to recognize the images acquired by the camera to improve the speed and accuracy of recognition, it does not provide a specific solution that can be put into practice, and requires the detection personnel to go to the scene to operate the instrument. The data cannot be transmitted and analyzed remotely, which affects the analysis and judgment of the tested instrument, resulting in low verification efficiency, and cannot track and monitor in real time, and cannot find the instrument that needs to be repaired or replaced in time

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