Sensor calibration method, electronic equipment, medium and system

Abstract

The invention provides a sensor calibration method, electronic equipment, a medium and a system, and the method comprises the steps: obtaining a first sequence obtained by measuring a first parameter; acquiring a second sequence obtained by measuring the first parameter, wherein the sampling frequency of the second sequence is lower than that of the first sequence; adjusting the second sequence to be aligned with the first sequence by adopting a dynamic time warping algorithm; and correcting the first sequence. According to the method, the sensor does not need to be disassembled, the working state of equipment in the Internet of Things cannot be affected, a calibration element does not need to be additionally arranged in the sensor, and the hardware cost can be reduced.

Description

technical field [0001] The invention relates to the field of wireless sensors, in particular to a sensor calibration method, electronic equipment, media and a system. Background technique [0002] In the IoT of industrial equipment, sensors are usually deployed on industrial equipment to measure data in real time for status monitoring and fault diagnosis. In order to ensure the measurement accuracy of the sensor, the sensor needs to be calibrated regularly. [0003] Typically, periodic calibration is achieved by disassembling the sensor and sending it to a calibration laboratory, or by adding an excitation unit to the sensor. However, the method of disassembling the sensor and returning it to the laboratory for calibration cannot well meet the industrial scene. When the equipment needs to work continuously, the disassembly of the sensor needs to be performed after the equipment is shut down, and during the calibration process of the sensor, the equipment is in a non-monitor...

AI Technical Summary

Problems solved by technology

However, the method of disassembling the sensor and returning it to the laboratory for calibration cannot well meet the industrial scene. When the equipment needs to work continuously, the disassembly of the sensor needs to be performed after the equipment is shut down, and during the calibration process of the sensor, the equipment is in a non-monitoring state. Therefore, the method of dismantling the sensor and returning it to the laboratory for calibration has low timeliness and will affect the status monitoring of the equipment

The method of adding an excitation unit to the sensor will increase additional hardware costs

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