Driver fatigue state detection system and method based on Bluetooth transmission

Abstract

The invention discloses a driver fatigue detection system and method based on Bluetooth transmission. A photoelectric Bluetooth mouse device is made into a glasses additional device mounted on a glasses frame, the relative moving direction, moving distance and movement speed of each upper eyelid can thus be obtained, and these information is transmitted to external terminal equipment having the Bluetooth communication function through a Bluetooth communication module; the external terminal equipment processes the moving track to obtain eyelid winking data, and the external terminal equipment transmits the eyelid winking data to a remote monitoring server through the Internet; by processing and analyzing the eyelid winking data, the remote monitoring server judges the driving state of a driver, and according to the analysis result, whether voice prompt information needs to be sent to the driver or not is determined. According to the system and the method, real-time acquisition, transmission and processing are conducted in sequence on the eyelid winking information of the driver, whether the driver is in fatigue driving or not is judged, and the voice prompt information is sent when the driver is in fatigue driving.

Description

technical field [0001] The invention relates to a detection system and method, in particular to a driver fatigue state detection system and method based on bluetooth transmission. Background technique [0002] At present, the driver-centered fatigue driving instruments in the prior art are mainly divided into the following two types: a camera (or other instruments) is used to collect the driver's facial image information (mainly the eyes), and then the eye blinking information is obtained through computer processing. The number of times of movement is used to judge the driver's fatigue status; the other basically uses medical methods to detect brain waves to judge the driver's fatigue status. This kind of detection instrument has the following deficiencies in detection means and data processing: [0003] 1. The problem of human head positioning: In a moving car, more than two cameras and a high-performance computer are generally required (one is controlled by the computer t...

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Problems solved by technology

[0003] 1. The problem of human head positioning: in a moving car, more than two cameras and a high-performance computer are generally required (one is controlled by the computer to track the head positioning, and the other captures the image of the face) to complete The collection of facial image information makes the operation complicated and difficult for the driver to complete, and it is difficult to obtain the information of eye blinking in real time

[0004] 2. The collection of facial image information: the user is required not to wear sunglasses, because sunglasses (especially the polarizer worn by the driver) can filter out most of the infrared rays, ultraviolet rays and reflect visible light. In addition, using facial image information Collecting physiological signals, there are still shortcomings such as large amount of data and complex processing

Therefore, the acquisition of facial image information is greatly limited in practical applications

[0005] 3. Personal privacy issues: the use of cameras to collect facial image information of drivers may cause some of the driver's privacy to be exposed

[0007] Front-end processing, that is, processing information into digital signals in the car, which is convenient for transmission, but the facial image has a large amount of information, and it needs to be equipped with a high-performance on-board computer. The operation is more complicated and difficult for the driver to complete;

[0008] Back-end processing, that is, to transmit information on the car to the remote data processing terminal through the 4G network. Although this method can avoid the need to equip the computer on the car and simplify the driver's operation, it is difficult to achieve according to the bandwidth of the current 4G network. Real-time transmission of a large amount of facial image information, in addition, the transmission is susceptible to environmental interference and delay

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