Device and method for automatically monitoring telephone call behavior of driver when driving

Abstract

The invention relates to a device and a method for automatically monitoring a telephone call behavior of a driver when driving and belongs to the fields of intelligent traffic and aided driving. The device comprises an image acquisition device, a calculating device, a warning device and a wireless transmission device. The method comprises the following steps of firstly acquiring a head and nearby area image of the driver, secondly, obtaining the positions of the face and both hands of the driver in the image by skin color detection, and classifying by a support vector machine to determine whether the driver makes a telephone call or not; warning the driver if the driver makes the telephone call; uploading the image that the driver makes the telephone call to the monitoring center of the road transport bureau through a wireless network if the warning is useless to be used as an evidence that the driver breaks the law. According to the device and the method for automatically monitoring the telephone call behavior of the driver when driving disclosed by the invention, the unlawful act of the driver can be effectively monitored, the working strength of law enforcement personnel is relieved, the working efficiency is improved, and the occurrence rate of traffic accidents is reduced.

Description

technical field [0001] The invention relates to the fields of intelligent transportation and assisted driving. Background technique [0002] With the popularization of mobile phone use, the behavior of drivers dialing or answering mobile phones while driving can be seen everywhere. Because the driver often controls the steering wheel with one hand when answering and calling the mobile phone, he cannot control the vehicle well; more importantly, answering and calling the mobile phone will distract the driver's attention. Very likely to cause traffic accidents. Studies have shown that when using a mobile phone while driving, the brain's reaction speed is 30% slower than that of drunk driving, and the risk of a car accident when using a mobile phone while driving is more than 4 times higher than that of normal driving. 70% of fatal traffic accidents are caused by drivers' inattention, and mobile phones are one of the main reasons for inattention. In view of the harmfulness o...

AI Technical Summary

Problems solved by technology

Although this method can play the function of automatic monitoring, it will take pictures of all the vehicles that detect the signal of the mobile phone that is talking. At this time, it is not necessarily the driver who is calling, or someone else in the car is talking. many false positives

In the latter two methods, the camera is installed outside the car. Sometimes the captured pictures cannot clearly see the situation inside the car due to reasons such as weather or occlusion, and there will be missed detection and false detection.

[0004] Based on the above reasons, the behavior of "calling and answering mobile phones while driving" cannot be effectively monitored, making this behavior everywhere and causing great hidden dangers to traffic safety.

At present, there is no device based on the camera in the car to automatically monitor the driver's mobile phone behavior while driving

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