Research And Design Of The System Of Detecting Driving State For Motor Vehicle Drivers

Along with the rapid economic growth, the number of motor vehicle owners also continued to rise, to the people in the motor vehicle travel convenience at the same time, there are significant security risks. Statistics indicated that traffic accident's casualty rate is highest in the accident, and what but must point out specially especially is weary, anxious, excessive drinking driving holds the quite great proportion in these traffic accident.according to the related statistics, the road traffic accident which because the driver weary, intense, excessive drinking driving creates approximately composes the traffic accident total 20%, but actually occupies the first place in the death traffic accident's reason. Therefore drives the condition to the pilot to carry on the monitor by the effective surveillance pilot's driving behavior, regarding reduces the traffic accident and the personnel mortality rate, protects the person safety and the property, founds the harmonious society has the very realistic important meaning.The issue from my teachers stem of shan xi province science and technology office stem "The intellectualized detecting set of the motor vehicle driving state" .the stem hammer at excogitating the system to have all-weather, non-contact,real-time,intellectualized these four characteristics.Enclose the four demands, on the base of my previous classmate's country patent of invention "weary driving condition monitoring control unit and method" (ZL:200610012623.6), this article has conducted the further research.integrated the research on the relation about fatigue and brain wave signal,heart rate signal,pulse signal,steering wheel turn corner,vehicle speed .and make the feasibility design for the detecting set. Main activities as follow:1 Design the simulant motor vehicle fatigue driving experiment.choose the VR-4 driving simulator. Using the BFS4-FX-3010 electrocardiograph,Shanghai Nuocheng electric Ltd's dynamic electroencephalograph,Hefei Huake Electronic Research Institute's HK-2000 series HK-2000A compositive pulse sensor collect and save the driver's physiological signal; using the simulant motor's driver's operation acquisition system collect and save the speed signal, steering wheel turn corner signal.2 Choose the different mathematic method to analysis driver's physiological signal and operation data.and use the SPSS statistical soft to make the notable analysis about the relativity between these signal and fatigue degree. The results indicate that heart rate,pulse,brave eletricity have definite fuzzy maths relation with fatigue degree.3 Choose sensors on the basis of physiological signal which can measure the fatigue degree.combine the sensors technique level,the rate between capability and price to choose sensors which can reflect the driver's state. Through to survey input and the output signal carries on the experiment, has obtained these sensor the input-output signal form separately.4 Make the the feasibility design for the detecting set.design the circuit connect among sensor and dsp,dsp and arm on the base of the system'sensors,dsp,arm.and design three alarm executing function.provide reference for the stem's completion and realization.