CN101236695A - Driver status estimation system based on vehicle mounted sensor network - Google Patents
Driver status estimation system based on vehicle mounted sensor network Download PDFInfo
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Abstract
The invention provides a driver state evaluation system based on an onboard sensor network which comprises a vehicle running state evaluation sensor network, a vehicle driving state evaluation sensor network and a driver physical quality real-time evaluation sensor network. The invention enhances monitoring strength of safety driving, reduces occurrences of traffic accidents and ensures safety and smoothness of road by evaluating driving behavior and physical quality of a driver before driving and during driving.
Description
Technical field
The present invention relates to sensor network and intelligent transportation field, particularly based on the driver status estimation system of vehicle mounted sensor network.
Background technology
The information of China public transportation administration bureau shows that 241734 of road traffic accidents took place altogether in the whole nation to September in 2007 1, causes 57168 people's death, 288490 people injured, 8.5 hundred million yuan of direct property losss.In the frequent traffic hazard that takes place, driver fatigue has become one of principal element that causes traffic hazard at present.
The driver fatigue monitoring technique has important effect to reducing road accident rate.Have at present and comprise that Video processing, Flame Image Process, multiple technologies can realize the monitoring of driver fatigue degree.The vehicle running state assessment also has significant progress with the vehicle driving state assessment technology, and the drive recorder of similar aircraft black box can be installed in the high-end vehicle mostly, comes the health status of registration of vehicle and the formal parameter of vehicle.Some vehicle also can install automatic anti-lock braking system, air bag system, drive high-grade infosystems such as steady system, GPS positioning system and DAS (Driver Assistant System) automatically helps driver's operating and controlling vehicle, plays the effect of safe driving.
Though many vehicle state monitoring system, DAS (Driver Assistant System) and driver fatigue supervisory systems have all played vehicle and driver monitoring and auxiliary security driving function in some aspects preferably at present, but all do not constitute network, form the sensor network system of message complementary sense, resource sharing.
Summary of the invention
The purpose of this invention is to provide a kind of driver status estimation system based on vehicle mounted sensor network.
What the present invention will solve is the problem of existing driver because of the traffic hazard of fatigue driving initiation.
The present invention includes for achieving the above object:
Vehicle running state assessment sensor network, safety traffic key elements such as the speed of real-time monitoring vehicle, acceleration, gear, steering wheel position, oil mass, water temperature, electric weight, voltage, electric current, air bag state, tire pressure, bearing temperature, timely running status and health status of reacting vehicle to the driver.
Vehicle driving state assessment sensor network, the driving behavior that real-time monitoring driving person makes vehicle, comprise startup, shift gears, brake, stop, open the door, close the door, turn to and driving behavior such as switching signal lamp, output data according to the vehicle driving state sensor node, can judge tentatively whether vehicle violating the regulations, illegal activities such as parking offense, illegal traffic, illegal driving occur, and can judge whether the driving behavior that the driver makes when meeting urgent driving situation is proper, the vaild evidence of accident treatment is provided to traffic hazard processing department.
Driver's fitness real-time assessment sensor network, it is characterized in that node monitoring driving person's condition in real time, comprise the main body index that influences such as eyesight state, sense of hearing state, physical fitness index, reaction promptness, sleep need, psychological condition, notice concentration degree are driven.Driver's fitness real-time assessment sensor network judges that according to above data whether the present condition of driver has the ability to continue steering vehicle, in time reminds the driver to replace or rest on the spot.The data of driver's fitness real-time assessment sensor network record can also be handled the reference of department's accident treatment as traffic hazard.
The present invention writes down and dynamic evaluation vehicle running state according to vehicle running state assessment sensor network, guarantees the safe condition of vehicle self; Vehicle driving state assessment sensor network writes down and dynamic evaluation Real Time Observation driver's the level of controlling and professional skill, guarantee driving safety to driver's trailer reversing behavior; According to of the assessment of driver's fitness real-time assessment sensor network to driver's condition, guarantee driver's steering vehicle in the time period that the driving behavior ability is arranged, reduce the probability that fatigue driving takes place, ensure the safe operation of safety of person vehicle, road safety and traffic system.
Description of drawings:
Fig. 1 illustrates the driver status estimation system structural drawing based on vehicle mounted sensor network.
Embodiment:
Below in conjunction with drawings and Examples the present invention is done a detailed description, further understand and admit so that the present invention had.
As shown in Figure 1, the driver status estimation system based on vehicle mounted sensor network comprises:
1, vehicle running state assessment sensor network, safety traffic key elements such as the speed of its real-time monitoring vehicle, acceleration, gear, steering wheel position, oil mass, water temperature, electric weight, voltage, electric current, air bag state, tire pressure, bearing temperature, timely running status and health status of reacting vehicle to the driver.Simultaneously, the vehicle running state sensor network offers vehicle driving state assessment sensor network with data, vehicle driver's the mode of operation and the output state of vehicle running state sensor network are contrasted, whether the present maneuvering performance that checks vehicles exists hidden danger, and in time current state is offered the driver, and car operation administrative authority, improve efficient and reliability that vehicle safety is checked, reduce the inspection cost of regular safety inspection.The specific implementation of travel condition of vehicle sensor node can comprise technological means such as temperature sensing circuit, current detection circuit, voltage detecting circuit, liquid level detection circuit, code-disc, vehicle speed sensor circuit, baroceptor circuit, magnetic switch circuit by multiple detection technique.
2, vehicle driving state assessment sensor network, the driving behavior that its real-time monitoring driving person makes vehicle, comprise startup, shift gears, brake, stop, open the door, close the door, turn to and driving behavior such as switching signal lamp, output data according to the vehicle driving state sensor node, can judge tentatively whether vehicle violating the regulations, illegal activities such as parking offense, illegal traffic, illegal driving occur, and can judge whether the driving behavior that the driver makes when meeting urgent driving situation is proper, the vaild evidence of accident treatment is provided to traffic hazard processing department.The specific implementation of vehicle driving state sensor node can comprise detection technique means such as magnetic switch circuit, code-disc, digital quantity input circuit, current detection circuit, voltage detecting circuit by multiple detection technique.
3, driver's fitness real-time assessment sensor network, its real-time monitoring driving person's condition comprises the main body index that influences such as eyesight state, sense of hearing state, physical fitness index, reaction promptness, sleep need, psychological condition, notice concentration degree are driven.Driver's fitness real-time assessment sensor network judges that according to above data whether the present condition of driver has the ability to continue steering vehicle, in time reminds the driver to replace or rest on the spot.The data of driver's fitness real-time assessment sensor network record can also be handled the reference of department's accident treatment as traffic hazard.Physical state detection techniques such as the technology that the motion state of mouth, eyes was monitored in real time when driver's fitness real-time assessment sensor network can adopt the machine vision means to driver fatigue, electrocardio detection technique, the horizontal detection technique of body fluid electrolysis, brain power technology, eye face optic nerve fatigue detection technique, blood pressure, blood-sugar content, blood viscosity and medical science index measurement technology are come comprehensive assessment driver's fatigue exponent and real-time driving efficiency, and whether the current fitness of assess driver is fit to continue to bear driver's task.
Evaluating system writes down and dynamic evaluation vehicle running state according to vehicle running state assessment sensor network, guarantees the safe condition of vehicle self; Vehicle driving state assessment sensor network writes down and dynamic evaluation Real Time Observation driver's the level of controlling and professional skill, guarantee driving safety to driver's trailer reversing behavior; According to of the assessment of driver's fitness real-time assessment sensor network to driver's condition, guarantee driver's steering vehicle in the time period that the driving behavior ability is arranged, reduce the probability that fatigue driving takes place, ensure the safe operation of safety of person vehicle, road safety and traffic system.
Vehicle running state assessment sensor network, vehicle driving state assessment sensor network and the common driver status estimation system that constitutes based on vehicle mounted sensor network of driver's fitness real-time assessment sensor network, vehicular behavior and fitness in before the driver drives vehicle and the driving way are carried out real-time dynamic evaluation, improve the dynamics of safe driving monitoring, reduce the generation of traffic hazard, ensure the safe and smooth of road.The data that evaluating system provides can be used as driver's driving efficiency and the reference deliberated index of driving professional ethics.Simultaneously, data can also be handled the reference that department is assert traffic accident responsibility for traffic hazard.
Claims (4)
1, a kind of driver status estimation system based on vehicle mounted sensor network comprises:
One vehicle running state assessment sensor network;
One vehicle driving state assessment sensor network;
One driver's fitness real-time assessment sensor network;
Evaluating system writes down and dynamic evaluation vehicle running state according to vehicle running state assessment sensor network, guarantees the safe condition of vehicle self; Vehicle driving state assessment sensor network writes down and dynamic evaluation Real Time Observation driver's the level of controlling and professional skill, guarantee driving safety to driver's trailer reversing behavior; According to of the assessment of driver's fitness real-time assessment sensor network to driver's condition, guarantee driver's steering vehicle in the time period that the driving behavior ability is arranged, reduce the probability that fatigue driving takes place, ensure the safe operation of safety of person vehicle, road safety and traffic system.
2, the driver status estimation system based on vehicle mounted sensor network according to claim 1, the safety traffic key elements such as speed, acceleration, gear, steering wheel position, oil mass, water temperature, electric weight, voltage, electric current, air bag state, tire pressure, bearing temperature that it is characterized in that the real-time monitoring vehicle of described vehicle running state assessment sensor network are in time reacted the running status and the health status of vehicle to the driver.
3, driver status estimation system based on vehicle mounted sensor network according to claim 1, it is characterized in that the driving behavior that the described real-time monitoring driving person of vehicle driving state sensor network makes vehicle, comprise startup, gearshift, brake, stop, open the door, close the door, turn to and driving behavior such as switching signal lamp, output data according to the vehicle driving state sensor node, can judge tentatively whether vehicle parking offense occurs, illegal traffic, illegal drivings etc. are violating the regulations, illegal activities, and can judge whether the driving behavior that the driver makes when meeting urgent driving situation is proper, the vaild evidence of accident treatment is provided to traffic hazard processing department.
4, the driver status estimation system based on vehicle mounted sensor network according to claim 1, the condition that it is characterized in that the described real-time monitoring driving person of driver's fitness real-time assessment sensor network comprises the main body index that influences such as eyesight state, sense of hearing state, physical fitness index, reaction promptness, sleep need, psychological condition, notice concentration degree are driven.Driver's fitness real-time assessment sensor network judges that according to above data whether the present condition of driver has the ability to continue steering vehicle, in time reminds the driver to replace or rest on the spot.The data of driver's fitness real-time assessment sensor network record can also be handled the reference of department's accident treatment as traffic hazard.
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| CN102576497A (en) * | 2009-08-27 | 2012-07-11 | 株式会社月神 | Driving evaluation method |
| CN102762149A (en) * | 2009-12-16 | 2012-10-31 | 大众汽车有限公司 | Device and method for determining a vigilance state |
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- 2008-03-05 CN CNA2008100599633A patent/CN101236695A/en active Pending
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