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Artificial olfactory system

An artificial olfactory and gas technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of selection, low recognition rate, no artificial olfactory system, etc., and achieve the effect of simple connection structure and strong practicability

Inactive Publication Date: 2018-03-06
SHAANXI EYOUNG TECH
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AI Technical Summary

Problems solved by technology

However, the above studies are limited to general sensors or general electronic noses to detect the freshness of meat, and have not really realized the artificial olfactory system for meat.
Moreover, most of the pattern recognition methods used use the size of the variance as the criterion for extracting data information, and the variance does not fully reflect the amount of information.
Although some use non-statistical pattern recognition methods, they are not selected according to the meat smell pattern, and the recognition rate is relatively low

Method used

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  • Artificial olfactory system

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Embodiment 1

[0013] An artificial olfactory system according to the present invention comprises a test room, a signal processing box, a gas collection box and a host, and the test room, the signal processing box and the host are connected in sequence, wherein the signal processing box is arranged at the lower part of the gas collection box, and the gas A test board is vertically arranged inside the collection box, and several gas sensors are evenly distributed on the test board.

[0014] Preferably, the test chamber is connected to the gas collection box through an air flow channel.

[0015] Preferably, a fan is provided at the output end of the gas collection box.

[0016] Preferably, the gas sensor is a TGS semiconductor gas sensor.

[0017] Preferably, the signal processing box is also provided with a signal acquisition circuit, a conversion circuit, an amplification circuit and a filtering circuit, wherein the signal acquisition circuit, the conversion circuit, the amplification circu...

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Abstract

The invention relates to an artificial olfactory system, which includes a test room, a signal processing box, a gas collection box and a host, the test room, the signal processing box and the host are connected in sequence, wherein the signal processing box is arranged at the lower part of the gas collection box, and the gas collection box A test board is arranged vertically inside the box, and several gas sensors are evenly distributed on the test board. The artificial olfactory system of the present invention uses a genetically optimized combined RBF neural network to construct an artificial olfactory system suitable for meat freshness detection with a recognition rate of 95%. The system of the present invention has a simple connection structure and strong practicability.

Description

technical field [0001] The invention relates to an artificial olfactory system. Background technique [0002] At present, the use of artificial olfactory system to detect the freshness of meat has attracted widespread attention. Natale et al. used an artificial olfactory system composed of 8 quartz resonant gas sensors and PCA and SOM pattern recognition methods to detect the freshness of cod and veal. Grigioni et al. used 32 organic semiconductor sensors to analyze the odor of vacuum-packed low-temperature, long-term-storage beef by PCA analysis. The test showed that the use of such an artificial olfactory system can classify and identify the days of beef storage. Teng Jionghua and others used three metal oxide gas sensors and a probabilistic neural network to detect the freshness of beef. However, the above studies are limited to general sensors or general electronic noses to detect the freshness of meat, and have not really realized the artificial olfactory system for m...

Claims

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Application Information

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IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 张俊
Owner SHAANXI EYOUNG TECH
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