A driving fatigue detection method and system
A driving fatigue and detection method technology, applied in diagnostic recording/measurement, medical science, diagnosis, etc., can solve the problems of high misjudgment rate and low recognition rate, reduce traffic accidents, wide adaptability, and prevent fatigue driving accidents Effect
Active Publication Date: 2020-10-09
PEKING UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a driving fatigue detection method and system to solve the technical problems of low recognition rate and high misjudgment rate of existing fatigue driving detection methods
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[0027] 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 embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0028] see figure 1 , a driver fatigue detection system, comprising: a signal acquisition module (1), a signal preprocessing module (2), a data analysis module (3), a driver fatigue early warning module (4);
[0029] Before driving, the driver should adjust the seat and fasten the seat belt. Turn on the driver fatigue detection system before driving, and adjust the positions of the three acquisition modules of the seat belt to ensure that they are respectively on the driver's left collarbone ( figure 2 Shown position 1), xiphoid process ( figure 2 shown in location 2), and the right iliac cres...
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The invention discloses a driving fatigue detection method and a detection system. According to the driving fatigue detection system, acceleration signals of a driver on a safety belt and the bottom of a driving seat in a driving process are acquired firstly; phase-space reconstruction is implemented and de-noising treatment is conducted, so as to obtain high-dimensional phase space attractors corresponding to the acceleration signals; and then, a coupling index between the driver and an automobile acceleration data phase space in the driving process is obtained through a phase-space prediction method so as to construct and form a real-time coupling index matrix, namely C={Cij}; with trace of the matrix C, as a real-time driver fatigue degree index, the real-time driver fatigue index is compared with a fatigue degree index in a lucid interval; fatigue degree prompting is conducted when a comparison result exceeds a preset threshold; and a fatigue degree index of the driver in the driving process is saved in the database. According to the driving fatigue detection method and the detection system provided by the invention, technical problems of existing fatigue driving detection which is low in recognition rate and high in misjudgment rate can be solved.
Description
technical field [0001] The invention belongs to the technical field of fatigue driving detection, and in particular relates to a method for evaluating the driver's fatigue level based on data-driven personalization. Background technique [0002] Drowsy driving is the most common cause of traffic accidents. How to quickly and accurately detect the driver's fatigue status, give reminders, and take compulsory measures to reduce the speed of the vehicle when it is serious, has great significance for reducing accidents caused by fatigue driving. [0003] Existing driving detection technologies are mainly divided into three categories, one is physiological index detection, which is monitored according to the driver's electrical signal, myoelectric signal, and electrocardiographic signal. The other is to monitor the driver’s information. The features include image recognition, eye movement features, and feedback mechanism. According to the video information, the driver’s eye featu...
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IPC IPC(8): A61B5/18A61B5/00
CPCA61B5/168A61B5/18A61B5/7275A61B5/7405A61B5/742A61B5/746A61B2503/22
Inventor 贾凡安健张珏方竞
Owner PEKING UNIV