Passenger car driver working state detecting and fatigue warning system and method

Abstract

The invention discloses a passenger car driver working state detecting and fatigue warning system and method. A working state detecting module, a warning sound storing and playing module, a GPS moduleand a parking and braking detecting sensor are connected with a microcontroller. The working state detecting module comprises four pressure sensors and an infrared displacement sensor. The four pressure sensors are distributed on the outer edge of a passenger car steering wheel, at the center of a plate face of an accelerator pedal, at the center of a plate face of a brake pedal and at the centerof a plate face of a clutch pedal respectively. The infrared displacement sensor is arranged at the position, on a symmetrical line in the vertical direction and 50 mm away from the upper surface ofa backrest, of the surface of the backrest of a driver seat. The parking and braking detecting sensor is arranged under the head portion of a parking and braking control rod in a driving state. By means of the system, the key driving control actions and sitting posture changes of a driver are detected in real time, measurement parameter values detected by all the sensors and set standard values are combined, the fatigue grade of the driver is accurately judged, and driving safety is improved.

Description

technical field [0001] The invention belongs to the field of automobile active safety equipment, and relates to a bus driver working state detection and fatigue warning system and method, in particular to a bus driver working state detection and fatigue warning system and method based on multi-sensor data fusion technology . Background technique [0002] The labor intensity of bus drivers is high, the continuous driving time is long, they cannot get effective rest, and they often experience driving fatigue. In addition, some unsafe or irregular driving actions and driving habits of the driver will also cause danger. happened. Most of the existing bus driver working status detection or fatigue driving detection systems use sensors or cameras to collect and record changes in the driver’s physiological state such as heart rate and facial expressions during driving, so as to determine whether the driver is in a fatigue driving state. Since this kind of detection system does no...

AI Technical Summary

Problems solved by technology

[0004] The present invention overcomes the fact that the existing passenger car driver’s working state detection system does not consider the meaning represented by the driver’s actual manipulation actions and other physical changes that have a direct impact on the vehicle’s driving, which leads to the inability to monitor and judge the driver’s driving state. Sufficient problem, providing a bus driver's working state detection and fatigue warning system and method based on multi-sensor data fusion technology, through real-time monitoring of whether some key manipulation actions of the bus driver during driving are normal and the corresponding sitting posture Changes, comprehensive analysis of the measured parameter values ​​detected by each sensor in the working state detection module during vehicle driving and the cumulative driving distance of the bus detected by the GPS module after starting from the starting point of operation, combined with the working state detection module obtained through the test The standard values ​​of each measurement parameter detected by each sensor in different periods of time when the bus departs from the starting point of operation and different driving distances can make a more accurate judgment on whether the driver is in a fatigue driving state and the corresponding fatigue level. At the same time, in the Give the driver an effective sound warning under the condition of minimizing the impact on passengers, which improves driving safety

Images