A Drowsy Driving Detection Method Using Smartphone Speaker and Microphone

A technology for smart phones and fatigue driving, which is applied in the detection of fatigue driving, using smart phone speakers and microphones in the field of fatigue driving detection, which can solve the problems of not paying attention to the field of fatigue driving, achieve no leakage of privacy issues, and enhance environmental robustness , high-accuracy effect

Active Publication Date: 2020-06-16
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most approaches to detect driver behavior using non-visual sensors on mobile phones have not focused on the domain of drowsy driving.

Method used

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  • A Drowsy Driving Detection Method Using Smartphone Speaker and Microphone
  • A Drowsy Driving Detection Method Using Smartphone Speaker and Microphone
  • A Drowsy Driving Detection Method Using Smartphone Speaker and Microphone

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Experimental program
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Effect test

Embodiment

[0055] In order to test the performance of this method, this method is written as an Android application and deployed in different models of Android phones. And 5 drivers (3 males and 2 females) were recruited to drive different vehicles for the experiment. After each driving, the driver needs to record the fatigue state during driving. In order to ensure safety, open and empty roads are selected as the experimental site, and the vehicle speed limit is 40km / h. figure 2 It is the floor plan of the experimental scene.

[0056] First, test the overall accuracy of the method in various situations. The five drivers drove the experimental vehicle randomly in the experimental site according to their own driving habits, and the mobile phone in the car analyzed the driver's fatigue state. image 3 It shows the experimental results of different drivers driving. The detection accuracy refers to the ratio of the number of correct detections by this method to the total number of times ...

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Abstract

The invention discloses a fatigue driving detection method using a smart phone speaker and a microphone. The Doppler radar system is composed of the speaker and microphone of the smartphone, and the Doppler effect when the driver is in motion is used to judge whether there are three typical actions of fatigue driving (nodding, yawning, and abnormal steering wheel manipulation). Finally, based on the analysis of the three The detection results of a typical action are used to analyze whether there is fatigue driving. The invention only relies on the speaker in the smart phone to emit high-frequency sound beyond the hearing range of the human ear, and the microphone receives the sound signal, which has low cost, strong anti-interference, no leakage of privacy, and good user experience, and is especially suitable for the front row in the car Only the driver and the monitoring environment with good road conditions. The three typical fatigue driving actions detected by the present invention are quite different from normal driving actions. Combining undersampling technology and deep learning technology, accurate action information can be obtained on smart phones with limited perception capabilities, with high accuracy.

Description

technical field [0001] The invention relates to a fatigue driving detection method, in particular to a fatigue driving detection method using a speaker and a microphone of a smart phone, which is used to monitor whether a driver has fatigue driving, and belongs to the technical field of mobile computing applications. Background technique [0002] With the development of the economy, the number of cars is increasing, followed by more traffic accidents. And many traffic accidents all have very big relationship with driver's fatigue driving. Most drivers are unaware of the dangers of drowsy driving because many drowsy driving events are not obvious and do not cause serious consequences. Research shows that drivers are far less concerned about drowsy driving than other problems, such as using a mobile phone while driving, speeding or drinking and driving. Therefore, it is necessary to develop a fatigue driving detection system that can remind the driver to take a rest. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/18G08B21/06G06N3/04G06N3/08G06K9/00
CPCA61B5/18A61B5/7264G08B21/06G06N3/08A61B2503/22G06V20/597G06N3/044G06N3/045
Inventor 李凡解亚东吴玥杨松
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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