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A calibration device and sensor technology, applied in the field of sensor calibration, can solve problems such as complicated line connections and limited range of activities for operators
Pending Publication Date: 2021-05-11
XIAN CHINASTAR M&C
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Problems solved by technology
[0004] The invention provides a sensor wireless calibration device and method, which solves the technical problems that the sensor calibration devices in the prior art are connected through cables, the line connection is complicated, and the range of activities of the operator is limited, and the mobile client can be used to The parameters of the sensor are calibrated, the line connection is simple, and the technical effect of the operator's wide range of activities
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Embodiment 1
[0033] The embodiment of the present invention provides a sensor wireless calibration device, please refer to the attached figure 1 , the device includes:
[0034] standard sensor 1;
[0035] The sensor 2 to be calibrated, the sensor 2 to be calibrated is the same type of sensor as the standard sensor 1, and the measurement accuracy of the standard sensor 1 is higher than that of the sensor 2 to be calibrated;
[0036] Specifically, the sensor to be calibrated 2 and the standard sensor 1 are sensors of the same type, that is, the sensor to be calibrated 2 and the standard sensor 1 are pressure sensors, temperature sensors, flow sensors, and the like. The measurement accuracy of the standard sensor 1 is higher than that of the sensor 2 to be calibrated, so that the output value of the standard sensor 1 can be used as a standard for measuring the accuracy of the sensor 2 to be calibrated.
[0037] For ease of description, the embodiment of the present application takes a press...
Embodiment 2
[0071] The embodiment of the present invention also provides a sensor wireless calibration method, using the sensor wireless calibration device, please refer to the attached figure 1 , the method includes:
[0072] Step S1: obtaining a third parameter;
[0073] Step S2: controlling the signal generation module 5 to output a test signal according to the third parameter;
[0074] Step S3: applying the test signal to the standard sensor 1 and the sensor to be calibrated 2;
[0075] Step S4: collecting the first output signal and the second output signal;
[0076] Step S5: comparing the first output signal and the second output signal to obtain a comparison result;
[0077] Step S6: judging whether the comparison result is within a predetermined error range;
[0078] If it is, then the sensor 2 to be calibrated is qualified, no calibration is required, and the calibration ends;
[0079] If not, obtain the first modification parameter and the second modification parameter, obt...
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Abstract
The invention discloses a sensor wireless calibration device and method. The sensor wireless calibration device comprises a sensor to be calibrated and a standard sensor, the signal generation module is used for simultaneously applying the same test signal to the standard sensor and the sensor to be calibrated; the control module comprises a first data receiving unit used for receiving a first output signal output by a standard sensor and receiving a second output signal output by a sensor to be calibrated; the first data is used for receiving the first output signal and the second output signal and sending out; the mobile client is used for comparing and displaying the first output signal and the second output signal; a parameter modification instruction is generated according to a modification parameter input by a user, and the parameter modification instruction is transmitted to the first data receiving unit; and the calibration unit performs parameter modification on the to-be-calibrated sensor according to the parameter modification instruction. The technical effects that the parameters of the sensor are calibrated through the mobile client, the circuit connection is simple, and the movement range of the operator is large are achieved.
Description
technical field [0001] The invention relates to the technical field of sensor calibration, in particular to a sensor wireless calibration device and method. Background technique [0002] A sensor is a detection device that can sense the measured information, and can transform the sensed information into electrical signals or other required forms of information output according to certain rules, so as to meet the needs of information transmission, processing, storage, display, recording and control requirements. There is a certain difference in the output signals of the sensors, which requires calibration of each sensor to make the output of all sensors accurate. [0003] At present, most sensors perform signal conditioning through digital circuits. The internal parameters of the digital conditioning chip are configured through the host computer software, and digital calibration is performed to realize the signal conditioning function. The connection of different functional...
Claims
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