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Air passage zero resetting type alcohol tester and detection method thereof

A technology of alcohol detection and detection method, which is applied in biological testing, material inspection products, inoculation and ovulation diagnosis, etc. It can solve the problems of long cleaning time, unclean airway cleaning, and increased difficulty of airway cleaning, so as to ensure cleaning efficiency, Guarantee the effect of using time

Pending Publication Date: 2020-02-07
HENAN HANWEI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the first use, the staff did not wait for the residual gas in the instrument pipeline to completely dissipate before using it for the second time; due to the existence of residual gas in the airway, it has a great impact on the detection accuracy of subsequent drivers
[0005] In addition, in the process of blowing alcohol during the alcohol test, on the airway wall of the alcohol detector, especially the irregular airway wall, the gas to be tested is very easy to condense on the airway wall, and even form water droplets, which increases the It is difficult to clean the airway after the test, and even cause the airway to be cleaned uncleanly or take a long time to clean

Method used

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  • Air passage zero resetting type alcohol tester and detection method thereof
  • Air passage zero resetting type alcohol tester and detection method thereof
  • Air passage zero resetting type alcohol tester and detection method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] as attached figure 1 to attach image 3 Shown, a kind of airway re-zero type alcohol tester, it comprises tester housing, is provided with airway 2, alcohol detection device 8, master controller 9 and air extraction device 5 in described tester housing; The gas device 5 is connected to the air channel 2 and is used to discharge the residual gas in the air channel 2 out of the alcohol tester; the alcohol detection device 8 is connected to the air channel 2 and is used to collect the gas to be tested concentration and transmit the detection result to the main controller 9; the main controller 9 is electrically connected to the air extraction device 5 and the alcohol detection device 8 respectively, and according to the detection result of the alcohol detection device 8, Drive the suction device 5 to act.

[0029] The checked driver blows air to the air inlet 1 of the airway re-zero type alcohol tester through the gas nozzle, and the alcohol detection device 8 collects t...

Embodiment 2

[0033] The difference between this embodiment and Embodiment 1 is that the airway reset type alcohol tester also includes an air blowing pressure detection device 7 connected to the main controller, and the air blowing pressure detection device 7 is sealed and communicated with the air The channel 2 is used to detect whether the gas to be measured enters the air channel 2 .

[0034] This embodiment provides a specific implementation of an air blowing pressure detection device. The air blowing pressure detection device 7 includes a gas pressure sensor and an operational amplifier circuit. One end of the operational amplifier circuit is connected to the gas pressure sensor, and the other end Connect the main controller. The detection end of the gas pressure sensor is in sealed communication with the airway, and is used to collect the pressure of the gas to be measured in the airway and convert it into an electrical signal. The operational amplifier circuit amplifies the electric...

Embodiment 3

[0037] The difference between this embodiment and the foregoing embodiments is that this embodiment provides a specific implementation manner of an airway.

[0038] as attached image 3 As shown, the air passage 2 includes a blowing air path and an L-shaped baffle 201 arranged in the blowing air path, and a gas pressure detection port 6 is provided on the side wall of the blowing air path on one side of the L-shaped baffle 201, A gas concentration detection port 3 and an air outlet 4 are provided on the side wall of the air blowing path on the other side of the L-shaped baffle plate 201; the gas pressure detection port 6 is in sealing communication with the blowing pressure detection device 7, and the gas concentration The detection port 3 is in sealing communication with the alcohol detection device 8 , and the air outlet 4 is in sealing communication with the air extraction device 5 ; the exhaust port of the air extraction device 5 is in communication with the air outlet of ...

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Abstract

The invention provides an air passage zero resetting type alcohol tester and a detection method thereof. The air passage zero resetting type alcohol tester comprises a tester shell, wherein an air passage, an alcohol detection device, a main controller and an air extraction device are arranged in the tester shell; the air extraction device communicates with the air passage and used for dischargingresidual gas in the air passage to the outside of the alcohol tester; the alcohol detection device communicates with the air passage and is used for collecting the concentration of the gas to be detected and transmitting the concentration to the main controller; the main controller is electrically connected with the air extraction device and the alcohol detection device respectively, and drives the air extraction device to move according to the detection result of the alcohol detection device. The air passage zero resetting type alcohol tester has the advantages of cleanable air passage and high detection precision.

Description

technical field [0001] The invention relates to alcohol detection equipment, in particular to an airway re-zero type alcohol tester and a detection method thereof. Background technique [0002] In order to maintain people's personal safety and combat drunk driving and drunk driving that endanger the safety of others, traffic law enforcement departments are constantly strengthening the investigation and punishment of drunk driving. In the process of law enforcement investigation on urban roads and highway investigation points, an alcohol detector is usually used to detect the alcohol concentration contained in the driver's exhaled gas, which is used as the basis for investigating and punishing drunk driving and drunk driving. [0003] The new national standard (the national standard of the People's Republic of China GB / T 21254-2017) requires the alcohol tester to have a reset function after the gas blowing test. Zero cannot be determined, and can only wait for the residual a...

Claims

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Application Information

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IPC IPC(8): G01N33/98G01N1/24A61B10/00
CPCG01N33/98G01N1/24A61B10/00A61B2010/0087
Inventor 高锋金贵新贺德江殷灿毕小乐郑建利
Owner HENAN HANWEI ELECTRONICS
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