Electronic nose gas detection system with protection function

A technology of gas detection system and protection function, used in measuring devices, instruments, scientific instruments, etc.

Inactive Publication Date: 2016-12-14
CHONGQING UNIV
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  • Abstract
  • Description
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  • Electronic nose gas detection system with protection function
  • Electronic nose gas detection system with protection function
  • Electronic nose gas detection system with protection function

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Embodiment Construction

[0019] figure 1 It is the entire system architecture, a large number of nodes constitute a wireless sensor network, the nodes collect gas concentration through sensor arrays, perform data filtering, temperature and humidity compensation, data preprocessing, and data fusion through DSP, and then send the processed data to Convergence node, the convergence node is uploaded to the upper computer through the mobile communication network, and the upper computer includes a remote database and a remote monitoring terminal.

[0020] In a gas chamber, the gas enters the reaction chamber through the gas valve, and the sensor array will detect the gas. Considering that the electronic nose gas detection system with protection function we designed may be used for highly corrosive gases If the sensor is in contact with corrosive gas for a long time, it will damage the sensor, which will greatly reduce the life of the sensor, increase the frequency of sensor replacement, and increase the cos...

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Abstract

The invention provides an electronic nose gas detection system with a protection function. By means of improvement of corresponding hardware, a routing algorithm and a protocol stack, the high-robustness Internet of things is achieved, and real-time monitoring on gas is achieved, and a self-protection measure is designed to deal with damage of corrosive gas to a sensor on the premise that gas recognizing and concentration obtaining are completed. The self-protection measure particularly comprises the following steps that after the corrosive gas is detected, a processor controls a sensor node power supply to be switched off, and a gas inlet valve coordinates with a vacuum pump; the gas inlet valve is switched off to block entrance of the corrosive gas, the power of the vacuum pump is controlled to be increased, therefore, the corrosive gas in a gas chamber is quickly exhausted, and contact between a sensor node and the corrosive gas is reduced; the concentration of gas in a reaction chamber is estimated through the air draft volume, normal working is recovered when the concentration reaches the standard, and then the self-protection function is completed.

Description

technical field [0001] The present invention is an electronic nose gas detection system with protection function. Through the improvement of corresponding hardware, routing algorithm and protocol stack, a highly robust Internet of Things network can be realized, real-time monitoring of gas can be realized, and the system can be self-protected. . Background technique [0002] The leakage of gas will cause great harm to the production and life of human beings. Explosions caused by the leakage of dangerous gases or dust occur from time to time, such as the Tianjin Port explosion and the explosion caused by oil pipeline leakage. Concentration, which is conducive to the implementation of environmental monitoring and timely access to gas leakage information. Obtaining the location of gas leakage in time is not only beneficial to saving lives, but also provides a basis for subsequent rescue work and is conducive to taking corresponding treatment measures. Moreover, the environmen...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0075
Inventor 魏善碧石华云赵中甲白岩松赵晓航邓家林
Owner CHONGQING UNIV
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