Temperature and humidity standard box calibration device based on WIFI communication

A calibration device, temperature and humidity technology, applied in specific environment-based services, signal transmission systems, instruments, etc., can solve problems affecting the physical and mental health of testing personnel, low efficiency, cumbersome operation, etc., to achieve convenient on-site calibration and light weight , good repeatability

Pending Publication Date: 2019-06-07
陕西省计量科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since JJF 1564-2016 "Calibration Specifications for Temperature and Humidity Standard Chambers" was implemented in 2016, there are almost no dedicated instruments for the latest calibration specifications on the market. In general, general-purpose instruments are used as dedicated instruments, resulting in cumbersome operations and low efficiency. High, and the traditional detection device needs on-site detection, because the measured temperature and humidity standard box studio is noisy, long-term close-distance testing of the test box will affect the physical and mental health of the testing personnel. Therefore, we propose a WIFI-based Communication temperature and humidity standard box calibration device

Method used

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  • Temperature and humidity standard box calibration device based on WIFI communication
  • Temperature and humidity standard box calibration device based on WIFI communication
  • Temperature and humidity standard box calibration device based on WIFI communication

Examples

Experimental program
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Effect test

Embodiment 1

[0019] see Figure 1-3 , a temperature and humidity standard box calibration device based on WIFI communication, including a box body 1, a data acquisition card 2, a sensor interface circuit 3, a temperature and humidity sensor 4, a WIFI transmitter 5, a power module 6, a host computer 7 and a software module 8 , the data acquisition card 2 includes a signal conditioning module, a multiplexing switch, an A / D converter, an I / O interface and a microprocessor, and the A / D converter is a 24-bit high-precision A / D converter, and the microprocessor The device is an STM32F4 microprocessor, and the data acquisition card 2 and WIFI transmitter 5 are installed on the left side of the inner cavity of the box body 1, and the WIFI transmitter 5 is wirelessly connected with the data acquisition card 2 and the host computer 7, and the host computer 7 transmits through WIFI Wireless connection between the device 5 and the data acquisition card 2, and data transmission, the sensor interface ci...

Embodiment 2

[0021] see Figure 1-3 , a temperature and humidity standard box calibration device based on WIFI communication, including a box body 1, a data acquisition card 2, a sensor interface circuit 3, a temperature and humidity sensor 4, a WIFI transmitter 5, a power module 6, a host computer 7 and a software module 8 , the data acquisition card 2 includes a signal conditioning module, a multiplexing switch, an A / D converter, an I / O interface and a microprocessor, and the A / D converter is a 24-bit high-precision A / D converter, and the microprocessor The device is an STM32F4 microprocessor, and the data acquisition card 2 and WIFI transmitter 5 are installed on the left side of the inner cavity of the box body 1, and the WIFI transmitter 5 is wirelessly connected with the data acquisition card 2 and the host computer 7, and the host computer 7 transmits through WIFI Wireless connection between the device 5 and the data acquisition card 2, and data transmission, the sensor interface ci...

Embodiment 3

[0023] see Figure 1-3, a temperature and humidity standard box calibration device based on WIFI communication, including a box body 1, a data acquisition card 2, a sensor interface circuit 3, a temperature and humidity sensor 4, a WIFI transmitter 5, a power module 6, a host computer 7 and a software module 8 , the data acquisition card 2 includes a signal conditioning module, a multiplexing switch, an A / D converter, an I / O interface and a microprocessor, and the A / D converter is a 24-bit high-precision A / D converter, and the microprocessor The device is an STM32F4 microprocessor, and the data acquisition card 2 and WIFI transmitter 5 are installed on the left side of the inner cavity of the box body 1, and the WIFI transmitter 5 is wirelessly connected with the data acquisition card 2 and the host computer 7, and the host computer 7 transmits through WIFI Wireless connection between the device 5 and the data acquisition card 2, and data transmission, the sensor interface cir...

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Abstract

The invention discloses a temperature and humidity standard box calibration device based on WIFI communication. The temperature and humidity standard box calibration device comprises a box, a data collecting card, a sensor interface circuit, a temperature and humidity sensor, a WIFI transmitter, a power module, an upper computer and a software module; the data collecting card and the WIFI transmitter are mounted on the left side of a cavity of the box; and the WIFI transmitter, the data collecting card and the upper computer are wirelessly connected. The data collecting card, the sensor interface circuit, the temperature and humidity sensor, the WIFI transmitter, the power module, the upper computer and the software module are arranged, detection personnel and detection equipment are physically separated, remote control is achieved, and the harm of noise during detection to human health is avoided; according to the temperature and humidity standard box calibration device, the detectionaccuracy is high, repeatability is good, and a method fully meets the requirements of the JJF1564-2016 'Temperature and Humidity Standard Box Calibration Specification'; and the human-computer interaction part graphical interface and touch control operation are achieved, the size is small, the weight is low, the temperature and humidity standard box calibration device can move freely within a certain range, and on-site calibration of a temperature and humidity standard box by workers is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of measurement and calibration devices, in particular to a temperature and humidity standard box calibration device based on WIFI communication. Background technique [0002] Since JJF 1564-2016 "Calibration Specifications for Temperature and Humidity Standard Chambers" was implemented in 2016, there are almost no dedicated instruments for the latest calibration specifications on the market. In general, general-purpose instruments are used as dedicated instruments, resulting in cumbersome operations and low efficiency. High, and the traditional detection device needs on-site detection, because the measured temperature and humidity standard box studio is noisy, long-term close-distance testing of the test box will affect the physical and mental health of the testing personnel. Therefore, we propose a WIFI-based Communication temperature and humidity standard box calibration device. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00G08C17/02H04W4/38H04L29/08
Inventor 刘隽关卫军董宏斌张楠
Owner 陕西省计量科学研究院
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