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Sensor calibration equipment system and method

A calibration system and sensor technology, applied in the field of sensor calibration, can solve the problems of low sensor calibration efficiency and limited sensor calibration efficiency, and achieve the effect of improving calibration efficiency

Inactive Publication Date: 2017-11-03
南京中科乾安智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is not suitable for setting the serial number of the sensor, and the number of calibrated sensors is limited by the number of USB HUB connected to the computer, which limits the calibration efficiency of the sensor to a certain extent
[0005] Aiming at the technical problem of low calibration efficiency of sensors in the prior art, no effective solution has been proposed yet

Method used

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  • Sensor calibration equipment system and method
  • Sensor calibration equipment system and method
  • Sensor calibration equipment system and method

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Experimental program
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Embodiment 1

[0040] An embodiment of the present invention provides a sensor calibration system, such as figure 1 Shown is a structural block diagram of a sensor calibration system, the system includes: a host computer 101, a sensor calibration device 102 and a sensor to be calibrated 103; wherein, the host computer communicates with the sensor calibration device through a bus, and the sensor to be calibrated and Sensor calibration equipment electrical connection;

[0041] During specific implementation, the above-mentioned upper computer is used to receive the calibration command input by the user, and sends the calibration command to the sensor calibration device; the sensor calibration device sensor calibration device is provided with a plurality of analog interfaces and calibration chambers (the figure 1 Not shown in ), each analog interface is used to connect with the sensor to be calibrated, the sensor to be calibrated is set in the calibration chamber, and the calibration gas is sto...

Embodiment 2

[0045] In actual use, there are multiple sensor calibration devices, and the multiple sensor calibration devices communicate with the host computer through the bus. Further, each sensor calibration device is connected to multiple sensors to be calibrated.

[0046]Based on this, the embodiment of the present invention also provides another sensor calibration system, such as figure 2 A structural block diagram of another sensor calibration system is shown, the system includes a host computer 101 , multiple sensor calibration devices 102 and multiple sensors 103 to be calibrated.

[0047] It should be understood that, for ease of illustration, figure 2 In the structural block diagram of the sensor calibration system shown, only three sensor calibration devices are shown, and the number of sensors to be calibrated connected to each sensor calibration device is two. In actual use, the above sensor calibration devices and The number of sensors to be calibrated can be set accordin...

Embodiment 3

[0060] On the basis of the above embodiments, the embodiment of the present invention also provides a sensor calibration method, which is applied to the sensor calibration system described in the first or second embodiment above, such as Figure 4 A flow chart of a sensor calibration method shown, comprising the following steps:

[0061] Step S402, the upper computer obtains the concentration value of the calibration gas in the calibration chamber, and sends a calibration command to the sensor calibration device;

[0062] Wherein, the concentration value of the calibration gas in the calibration chamber can be read by the standard instrument set in the calibration chamber;

[0063] Step S404, after receiving the calibration instruction, the sensor calibration device calibrates the sensor to be calibrated according to the pre-stored calibration algorithm and concentration value.

[0064] Specifically, the above step S104 includes the following process: (1) Control the concentr...

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PUM

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Abstract

The invention provides a sensor calibration equipment system and method, and relates to the technical field of sensor calibration. The system comprises an upper computer, sensor calibration equipment and to-be-calibrated sensors, wherein the upper computer communicates with the sensor calibration equipment through a bus; the to-be-calibrated sensors are electrically connected with the sensor calibration equipment; the upper computer is used for receiving a calibration command input by a user and issuing the calibration command to the sensor calibration equipment; the to-be-calibrated sensors are arranged in a calibration bin; a standard instrument is further arranged in the calibration bin and is used for detecting the concentration value of calibration gas in the calibration bin and transmitting the concentration value to the upper computer; and the upper computer is used for receiving the concentration value and transmitting the concentration value to the sensor calibration equipment to calibrate the to-be-calibrated sensors. According to the sensor calibration system and method, in a calibration process, the number of the to-be-calibrated sensors is not affected by interfaces of the upper computer, and therefore, the sensor calibration efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sensor calibration, in particular to a sensor calibration system and method. Background technique [0002] Sensor (Sensor) is a common but very important device. It is a device or device that senses various quantities that are specified and converts them into useful signals according to certain rules. Usually, the signal received by the sensor has a weak low-frequency signal, and the external interference can sometimes exceed the measured signal, so only the calibrated sensor can confirm whether the output signal is normal. [0003] The traditional sensor calibration method is to connect the sensor one-to-one through the serial port of the computer, interact with the sensor through the serial port debugging assistant software, or change the reference voltage by adjusting the size of the sensor potentiometer, and measure the reference voltage while adjusting. Only one sensor can be calibrated at a time, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 姚之满杨巍朱永康
Owner 南京中科乾安智能科技有限公司