Drunk driving automatic monitoring system and detection method

A technology of automatic detection and drunk driving, applied in the field of automatic monitoring system for driver drunk driving, can solve problems such as the inability to detect alcohol concentration, and achieve the effect of improving the detection ability of drunk driving, fast detection speed, and good evidence retention

Active Publication Date: 2021-04-09
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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  • Drunk driving automatic monitoring system and detection method
  • Drunk driving automatic monitoring system and detection method
  • Drunk driving automatic monitoring system and detection method

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Embodiment Construction

[0055] 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.

[0056] The purpose of the present invention is to provide an automatic monitoring system and detection method for drunk driving. The position of the driver in the car is positioned by a visible light camera, and at least two near-infrared cameras are used to detect the concentration of alcohol vapor in the driver's mouth respectively. Two infrared cameras detect whether all the windows of the vehicle are closed, and compare them with the set alcohol concentration threshold when the vehicle windows are fully closed or the alcohol concentration threshold when the windows are all open to d...

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Abstract

The invention relates to a traffic monitoring system which solves the problems that an existing monitoring system cannot accurately judge whether a driver is drunk or not and cannot obtain the alcohol content value of gas exhaled by the driver when a window is opened. According to the invention, the TDLAS technology, the LRPTS technology, the laser spectrum visual imaging principle and the existing image detection technology are utilized to segment and extract the identified image, whether the driver is drunk-driving is judged through the corresponding PPM value, and the detection result and the corresponding image are transmitted 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 Applications(China)
IPC IPC(8): B60W40/08G01N33/497
CPCB60W40/08G01N33/4972B60W2040/0836B60W2040/0809
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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