Automatic monitoring system and detection method for drunk driving

An automatic detection and drunk driving technology, applied in the direction of measuring devices, color/spectral characteristic measurement, instruments, etc., can solve the problems such as the inability to detect alcohol concentration, and achieve the effect of fast detection and good retention

Active Publication Date: 2022-01-28
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

It can solve the problem that the real-time online alcohol concentration detection of the driver cannot be detected in the actual drunk driving detection. In order to achieve the above object, the present invention adopts the following specific technical solutions:

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  • Automatic monitoring system and detection method for drunk driving
  • Automatic monitoring system and detection method for drunk driving
  • Automatic monitoring system and detection method for drunk driving

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0050] The purpose of the present invention is to provide an automatic monitoring system and detection method for drunk driving, which uses a visible light camera to locate the driver's position in the car, and uses at least two near-infrared cameras to detect the concentration of alcohol vapor in the driver's mouth respectively. Compared with the specified alcohol concentration threshold to determine whether it is drunk driving; the two near-infrared cameras are equipped with filters for detecting alcohol absorption peaks in a specific wavelength range, which can greatly improve the pe...

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Abstract

The invention relates to a traffic monitoring system, which solves the problem that the existing monitoring system cannot accurately determine whether the driver is drunk driving and obtains the alcohol content value of the driver's exhaled gas. The invention uses TDLAS technology, LRPTS technology, and the principle of laser spectrum visual imaging And the existing image detection technology segments and extracts the recognized image, judges whether the driver is drunk driving through the corresponding PPM value, and transmits the detection result and the corresponding image to the traffic police department in real time.

Description

technical field [0001] The invention belongs to the technical field of gas detection, and in particular relates to an automatic monitoring system and detection method for drunk driving of drivers using laser spectrum visual imaging. Background technique [0002] In terms of drunk driving detection, the traditional method is to use a hand-held alcohol detector at an intersection by the traffic police, requiring the driver to stop and exhale at the alcohol detector for more than 2.5 seconds. The hand-held alcohol detector is equipped with an alcohol gas sensor, which is equivalent to a gas Sensitive resistance, the resistance value will change with the change of alcohol concentration in the exhaled breath, which will cause the change of current and voltage in the circuit. The alcohol content in the exhaled breath has a certain proportional relationship with the alcohol content in the blood. Different concentrations of alcohol will cause the sensor to generate voltage signals o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17G01N21/39
CPCG01N21/171G01N21/39
Inventor 刘逻刘培勋郭立红韩广良
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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