System for remote monitoring and prewarning of driving fatigue state based on polynary network transmission
Affiliated technical field
The present invention relates to the system for remote monitoring and prewarning of driving fatigue state of polynary network transmission, belong to the traffic safety studying technological domain.This system is applicable to the remote monitoring of professional driver's fatigue state and early warning, improves travel safety, gives full play to the important support effect of scientific and technical innovation to traffic insurance
Background technology
Kuomintang-Communist generation road traffic accident is 327209 in 2007, cause 81649 people's death, 380442 people injured, although compared all decline to some extent with 2006, but very more serious than still with developed country, particularly people's safety of life and property in the dead group of group that causes of the commerial vehicle particularly serious accident serious threat of hindering.Studies show that most of road traffic accidents are because people's (mainly being the driver), vehicle, road and traffic environment etc. cause in that the harmony of interior integrated system is unbalance, it is particularly outstanding that wherein professional driver drives factor.
The occupation driver degree of fatigue from shallow to being divided into different grades deeply.The professional driver who is in the different fatigue state has very big difference to the response characteristic of early warning information.Result of study shows, professional driver is in slight when tired, adopts suitable early warning means can help the driver to recover waking state again; Along with the intensification of degree of fatigue, the level that can recover will descend; After the driver enters degree of depth fatigue, then take which kind of means all to be difficult to make it restore to waking state.Therefore from the angle of accident prevention, " earlier detection, early warning, the early stage strick precaution " is very necessary.When but the driver was in slight fatigue state, various features were often very unobvious, were easy to cause mistake alert, and therefore slight tired accuracy of identification will be a difficult point problem.
The means of early warning mainly comprise audition, vision, olfactory sensation, sense of touch and vibratory stimulation etc.Various early warning means respectively have its pluses and minuses.For example acoustical signal obviously is better than visual signal aspect gripping one's attention, and does not increase driver's vision burden, but because the acoustical signal driver can't avoid, causes driver's boredom easily.Kantowitz has proposed the compatible model of stimulation-response, and this modelling has been described the relation between reacting such as stimulation such as vision and control action on the level of nesting of framework, rule and reaction tendency.
Japan's Nissan Motor corporation is developed a kind of system that can give the driver electronic warning of dozing off automatically, if driver's number of winks is too much, electronic alarm will send and ring, and spurts a kind of fragrance that contains refreshment materials such as Herba Menthae and Fructus Citri Limoniae to driver's cabin, eliminates driver's sleepiness.The system of the convenience-for-people company of Japan's computer exploitation is by being contained in the sniffer on the steering wheel, beat pulse when steering wheel is held in perception, judge healths such as driver's stress, nervous, absent minded, drowsiness, if surpass certain index, will sound by comprising, multiple modes such as jet gas, emission light, vibration seat give the alarm to the driver.The psychology lecturer Charles Spence of Oxford University studies show that the vibration-type caution device can make common traffic accident incidence rate reduce 15%; Tactile alert can be with driver's response speed raising 0.1 or 0.2s.The German Research personnel have invented a kind of glasses that have sensitive photoswitch.The driver on the way dozes off, and the automatic energized of photoswitch meeting in the glasses makes driver's light at the moment shinny, causes driver's vigilance.
Before the present invention, the research of driver's fatigue state monitoring and warning technology association area is at home mainly based on university, comprising Tsing-Hua University, Jilin University, China Agricultural University, Zhejiang University, Shandong University etc.The ZL200720020662.0 patent is the online early warning system of a kind of weariness working, does not have the remote monitoring warning function; Line in the ZL200620132022.4 patent or wireless transmission can not satisfy the mass data real-time transmission of information, and certain delay is arranged.
At present, at professional driver's fatigue state monitoring and early warning technology, mainly concentrate in the vehicle-mounted monitoring early warning, the remote monitoring early warning technology does not relate to, so the present invention is significant to the improvement of China's traffic safety status.
Summary of the invention
The present invention has overcome the defective and the deficiency of present vehicle-mounted monitoring and early warning technology, has realized the employing of the formulation of remote monitoring early warning strategy and pleasantization early warning means, method.On the basis of vehicle-mounted fatigue early warning system, at professional driver, set up fatigue state distant early warning monitoring system, it is compensated.
For reaching above target, primary and foremost purpose of the present invention provides the mobile video monitor system based on the two card of onboard wireless CDMA, in conjunction with campus area network's network, join by four network decoder and video server, realize the Internet visit: in wire transmission, by fibre optic transmission equipment, be linked on TV, DLP, the COMPUTER by matrix system, realize that monitoring video information shows.
The invention provides a kind of professional driver's video information collecting device, utilize vehicle-mounted light compensation facility, realize compensation, guarantee that the video image of gathering is clear professional driver's video information collection.
Another object of the present invention is to utilize the GPS receiver module, and vehicle-mounted early warning information receiving equipment is provided, and realizes distant early warning, formulates the early warning strategy, adopts pleasantization means and method.
The present invention is made up of the two card of onboard wireless CDMA mobile video monitor system, professional driver's video capture device, fibre optic transmission equipment and remote command monitoring and early warning center four parts.The two card of onboard wireless CDMA mobile video monitor system is made of hardware device (two card CDMA, integrated camera, Vehicular display device, integrated main frame, antenna and control panel, vehicle GPS receiver) and vehicle-mounted software.Occupation driver video capture device is realized the collection to professional driver's facial expression.Mobile video monitor system based on the two card of onboard wireless CDMA in conjunction with campus area network's network, joins by four network decoder and video server, realizes the Internet visit; In wire transmission, by fibre optic transmission equipment, be linked on TV, DLP, the COMPUTER by matrix system, realize that video information is presented on the monitoring large-size screen monitors at remote monitoring early warning center, the video information transmission is finished by fibre optic transmission equipment and Internet video codec.Remote command monitoring and early warning center is made up of a remote monitoring main frame, monitoring and control management software, video frequency collection card, control and command giant-screen.
The present invention is mainly used in professional driver's fatigue state remote monitoring study of warning in traffic safety field.The invention has the advantages that a kind of fatigue state remote monitoring early warning technology and system that is directed to professional driver's driving habits and driving behavior that created, realize that remote command monitoring and early warning center is to the true driving condition remote monitoring of professional driver, when tired state and dangerous situation appear in professional driver, remote command monitoring and early warning center can be given distant early warning information timely, and abrupt deceleration vehicle where necessary, avoid the generation of accident effectively, guarantee commerial vehicle and professional driver's safety, significantly improve the operation Transport Safety, give full play to the important support effect of scientific and technical innovation traffic insurance.
Native system is rationally distributed, compact conformation, and installation, easy to use is easy to safeguard.The present invention carries out grading forewarning system according to the classification of fatigue driving state, and the early warning strategy is perfect, and method for early warning is pleasant, and the early warning means are optimized, and improves early warning effectiveness and pleasant property.
Description of drawings
Below the present invention is described in further detail
Fig. 1 is the designed system for remote monitoring and prewarning topology diagram of the present invention.
Fig. 2 is the early warning transmission system structure chart that the present invention designs.
The specific embodiment
In Fig. 1, the on-the-spot real time video signals of camera acquisition receives on the CDMA cluster Video transmission system main frame by cable on the vehicle-mounted mobile platform.Camera video is through the video compression coding module compression of main frame, be transmitted into cdma network by the intelligent wireless communication terminal, video information is transferred to the Internet by the cdma wireless network again, utilize the VPDN technology to realize encryption function, be connected to the remote command monitoring and early warning center of computer network, remote command monitoring and early warning center control video server receives and the control front end is passed back video image and video recording.
Four network decoder link to each other with video server by LAN, and convert the digital video signal that video server transmits to analog video signal, are linked on TV, DLP, the COMPUTER by fiber-optic transfer and matrix system again.
In Fig. 2, use the GPS module to realize the early warning of remote monitoring, take short message and the method for early warning of making a phone call.When the monitor staff of remote monitoring center finds that the driver has tired sign or fatigue state occurs, can adopt pleasantization early warning mode to realize distant early warning according to tired grade, avoid the generation of accident.The vehicle GPS receiver receives the prompting of short message, and has voice that content of short message is play, and plays the effect of professional driver being carried out early warning.