Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sensor array signal processing method for liquor smell detection

A sensor array and signal processing technology, applied in physical realization, biological neural network model, material resistance, etc., can solve problems such as unsatisfactory performance, influence of detection results, and low reliability of alcohol detection devices

Inactive Publication Date: 2005-04-27
INST OF ELECTRONICS CHINESE ACAD OF SCI
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing alcohol detection devices use a single alcohol sensor as a sensitive unit, only using the steady-state response signal of the sensor and ignoring the dynamic response signal containing rich information. These alcohol detection devices have low reliability and poor selectivity to alcohol
People improve the performance of sensors and detection devices by improving sensitive materials and using filter membranes, but some interfering gases in the environment such as gasoline and perfume will still have a great impact on the detection results
Some people propose to use multiple sensors for certain atmosphere detection, such as Chinese patent 00127299, but simply compare the output signals of each sensor with the preset threshold, the performance of the whole system is still unsatisfactory

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sensor array signal processing method for liquor smell detection
  • Sensor array signal processing method for liquor smell detection
  • Sensor array signal processing method for liquor smell detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] Implement the intelligent " wine gas detector " of the inventive method, as image 3 As shown, it is composed of semiconductor gas sensor array 1, gas sampling module 2, signal processing and control module 3, input and output module 4, communication module 5 and power supply and power management module 6. Where sensor array 1 consists of four SnO 2 The gas sampling module 2 is composed of a membrane pump, PTFE pipeline and sensor chamber, and the signal processing and control module 3 is composed of a 51 series single-chip microcomputer and peripheral circuits.

[0053] The intelligent alcohol detector of the present invention presses Figure 4The process shown works. When working, start the system through the input and output module 4, the gas to be measured contacts the sensor array 1 through the gas sampling module 2, the sensor array 1 is preheated, and the signal processing and control module 3 collects the whole process of the response of the sensor array 1 to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to gas detecting and mode identification technology, and is especially the signal processing method in alcohol smell detection. Sensor array is used in detecting and processing the dynamic response process from beginning response to final restoring, and artificial nerve network technology is adopted for mode identification. The present invention has effectively raised alcohol smell detecting selectivity, can eliminate the effect of gasoline, perfume, etc. and compensate the drift of alcohol sensitive sensor array, and has self-calibrating function and lower calibration frequency.

Description

technical field [0001] The invention relates to the technical field of gas detection and pattern recognition, in particular to a signal processing method for alcohol gas detection. Background technique [0002] Most of the existing alcohol gas detection devices use a single alcohol sensor as a sensitive unit, only using the steady-state response signal of the sensor and ignoring the dynamic response signal containing rich information. These alcohol gas detection devices have low reliability and poor selectivity to alcohol . People improve the performance of sensors and detection devices by improving sensitive materials and using filter membranes, but some interfering gases in the environment, such as gasoline and perfume, will still have a great impact on the detection results. Someone proposes to use multiple sensors for certain atmosphere detection, such as Chinese patent 00127299, but simply compares the output signals of each sensor with the preset threshold, and the pe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04G06N3/06
Inventor 高晓光李建平贾建何秀丽
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com