Fatigue driving recognition system based on non-contact measurement of heart rate variability
A technology of heart rate variability and fatigue driving, applied in the field of fatigue driving recognition system, can solve problems such as driver inconvenience
Active Publication Date: 2016-12-07
SUZHOU TSINGTECH MICROVISION ELECTRONICS TECH +1
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Although medical research has long proved that there is a definite relationship between this information and people's mental state, and the development of electronic technology has also made these sensing devices more miniaturized and more portable, but such sensors installed at the waist, abdomen or wrist of the human body Sensing device, but also connected with the fatigue discrimination device, which is extremely inconvenient for the driver
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[0067] Such as figure 1 As shown, the fatigue driving recognition system based on the non-contact measurement of heart rate variability can measure the driver's heart rate through image processing to realize fatigue driving discrimination, including an image acquisition device, an image processing device and an early warning device. Behind the vehicle-mounted terminal of the fatigue discrimination system, it is used to collect the driver's facial image sequence in real time. The image processing device adopts DSP processing system. The DSP processing system is used to process and analyze the collected driver's facial image sequence, and judge the fatigue driving according to the result. The early warning device is used to give early warning in various ways such as light, voice, sound, and seat vibration when it is determined that the driver is in a fatigue driving state. The image acquisition device adopts a camera, and the image processing device adopts a DSP processing sys...
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The invention discloses a fatigue driving identification system based on heart rate variability non-contact measuring. The system comprises an image acquisition device, an image processing device and an alarm device. The system is characterized in that the image acquisition device is used for obtaining the facial image of a driver in real time and transmitting the acquired driver image to the image processing device; the image processing device is used for obtaining the heart rate variability of the driver according to the driver image and obtaining the driving fatigue state of the driver according to the heart rate variability of the driver; and the alarm device is used for performing alarm prompting when the image processing device determines that the driver is at a driving fatigue state. The system provided by the invention realizes non-contact monitoring identification and further improves the accuracy and real-time performance of fatigue driving identification.
Description
technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to a fatigue driving recognition system based on non-contact measurement of heart rate variability. Background technique [0002] Driving fatigue refers to the decline of the driver's reaction level after driving for a period of time. This decline is manifested in distraction, drowsiness, etc., which leads to driving errors or complete loss of driving ability. When the driver is in a fatigued state, accidents often occur because of not being able to evade the sudden unexpected situation in time. [0003] At present, there are many methods to judge the driver's fatigue state. For example, lane assist systems can be used to detect driver fatigue. However, when abnormal lane changes are detected, accidents often have already occurred, and it is only applicable to urban roads and expressways with good road conditions; In some cases, the lane is not obvi...
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IPC IPC(8): G08B21/06
Inventor 张波张伟成波
Owner SUZHOU TSINGTECH MICROVISION ELECTRONICS TECH