CN102582621A - Intelligent vehicle-mounted GPS (global positioning system) navigation anti-collision warning system - Google Patents
Intelligent vehicle-mounted GPS (global positioning system) navigation anti-collision warning system Download PDFInfo
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Abstract
The invention discloses an intelligent vehicle-mounted GPS (global positioning system) navigation anti-collision warning system which consists of a GPS navigation module, a speed computation module, a central processing unit, an early warning signal module, an environment sensing module, an infrared distance measuring module, a radar speed distance module, a laser distance measuring module, an ultrasound distance measuring module, an image collecting module, an information processing module, an image processing module, a tail warning device, an audio video system, a display screen and an early warning power amplifier, wherein the speed is detected by the GPS, and the distance is detected by the distance measuring module, dangers which can cause tailgating at the front and at the back of a vehicle can be founded in time, so that a driver can be warned to travel normally and drive safely, functions of GPS navigation and audio video are realized, and no part of a vehicle control system needs to be changed.
Description
Technical field
The invention belongs to the vehicle anti-collision early warning field, particularly a kind of intelligent car borne GPS navigation anti-collision early warning system.
Background technology
Along with developing of automobile industry, automobile driving speed is more and more faster, the road traffic accident social concern that become international.Wherein, the shared ratio of collision case is about 80%, so, to automobile collision preventing research also becoming world subject.The expert shows in the traffic accident that is taken place, have 80% to be because the chaufeur reaction is untimely to the analysis result of motor traffic accidents, mishandling institute causes.Wherein, have 65% to belong to the accident that the rear-end collision collision is caused.On urban highway, unhappy because of the speed of a motor vehicle, the driver loses vigilance easily, and rear-end collision that cause happens occasionally apart from leading vehicle distance is too near, though accident is very not serious, the treatment after the accident, maintenance have also caused very big economic loss; And on express highway, the first class highway or outskirts of a town road, the speed of a motor vehicle is many more than 80 kilometers, because road conditions is better, the driver loses vigilance more easily; Because of two cars belong to uniform movement in the same way basically, in the cruising, very closely do not have problem apart from leading vehicle distance yet; But, when the front truck brake that runs into that the situation is critical, because the distance of back car is too near; Driver's reaction time and braking distance are not enough, and rear-end collision very easily takes place, because the speed of a motor vehicle is very fast.In case knock into the back, car crash often.This situation, particularly serious when weather condition is bad, often cause several, tens tragedies that car knocks into the back continuously, to trace it to its cause, the spacing that is exactly each car is too near, follow too tightly, and the driver loses vigilance, and has little time to react to be caused.Show according to the investigation and the experiment of German Mercedes Benz: can shift to an earlier date 0.5 second and recognize danger and take measures like chaufeur; 60% car accident that knocks into the back can be avoided; If chaufeur can do sth. in advance to recognize danger in 1.5 seconds and adopted right measures, then 90% car accident that knocks into the back can be avoided.Therefore; Accurate judgement and rapid reaction before possibly having an accident is the core guarantee of avoiding or alleviating accident for automobile; And mostly accident is because the driver is careless and inadvertent causes, if, the driver in too near apart from front truck; Can access and remind timely and take measures, just can avoid the generation of such rear-end collision to a great extent.Domestic at automobile collision preventing, the anti-technical elements that knocks into the back, many scientific findingss have been arranged, after automobile is reequiped; Can be under the state of normally running at high speed; Do not need the operation of chaufeur, the obstacle that automobile just can occur according to the place ahead is automatically confirmed the hazard level that automobile runs into; Automatically report to the police, slow down, processing mode such as brake, thereby initiatively guarantee the safety of running car.When the obstacle disappearance, automobile then recovers cruising automatically.After this system's entrucking, can traditional traffic safety be controlled to become by intelligent safety system is auxiliary by chaufeur one people and control.Its implementation is: system is directly installed on the automobile; Utilize laser, method and signal processing technology such as mechanical, electrical, directly obtain the various security information in the vehicle ', through analyzing and handling; Automatically provide the follow-up execution command of vehicle and be sent to actuating system; Automatically accomplish the corresponding actions such as early warning, deceleration or brake of automobile again by actuating system, because can find danger in advance and take measures areput with it than human eye; Thereby avoid, reduce the generation of traffic accidents such as collision, to guarantee vehicle driving safety.But this mode also will be connected with car running computer, the car speed sensor of automobile to obtain driving such as speed of a motor vehicle data except cost is very high; With the accelerator device of automobile, also will install auxiliary actuating unit additional when brake system is connected; With the replacement driver's operation, because, when emergency situations; Be to replace driver's operation by active anticollision intelligent safety system; The driver often is in the state of being off one's guard at ordinary times, as long as the danger that just possibly occur colliding some minor issues or fault appear, in a link.In fact; The reason of all rear-end collision accidents mainly all is that the speed of a motor vehicle tight these two reasons fast and that follow cause; Crashproof, the anti-key that knocks into the back is that the driver can not be exceeded the speed limit and is too near apart from front truck, if can in time find in driving procedure that also warning drivers is normally driven a vehicle; Just can prevent trouble before it happens by actv. the generation of fundamentally minimizing accident.So, can in time send early warning to the driver, let the driver slow down in advance, keep reasonable spacing, safe driving is only most important.
Summary of the invention
The objective of the invention is, provide a kind of and have in vehicle traveling process, by GPS test the speed, range finder module range finding; Before in time finding car, might cause the function of rear end collision behind the car, and send the acousto-optic alarm signal, remind that this car and back car driver normally drive a vehicle, safe driving; And have GPS navigation and video/audio function; Intelligent car borne GPS navigation anti-collision early warning system, and need not automotive control system is done any repacking, very strong practicality and economy had.
Realize that the object of the invention technical solution is: in two data of paramount importance of automobile collision preventing, the anti-technical elements that knocks into the back; The speed of a motor vehicle in going exactly and with the distance of front truck; Generally speaking, expect the speed of a motor vehicle in going, just have only from the control system of automobile to obtain; Though accurately, all necessary connecting system; Now, use the automobile of GPS navigation appearance more and more, if; Utilize the position functions of GPS to obtain the speed of a motor vehicle, add distance detecting, warning function, just can accomplish to isolate with driving, the control system of automobile; Neither influence the automobile original function, again anti-collision early warning can be provided, not only simply but also practical; Intelligent car borne GPS navigation anti-collision early warning system is exactly to utilize to receive the radio signal that gps satellite is launched, and obtains necessary locating information and observed quantity, and accomplishes location work through data handing; Utilize many integrated navigations location technologies such as GPS, GLONASS, the Big Dipper; Existing electronic chart covers 337 the above administrative unit divisions of region (2862 at county level) in the whole nation (removing Taiwan); Nearly 1,000 ten thousand of POI data make the navigation particularity be guaranteed.Through electronic map data accurately; With the positioning result of twice GPS, the GPS receiver can calculate speed data according to the locating data and the point-to-point transmission time difference of two points, and these data promptly are the kinematic velocitys of the carrier installed of GPS receiver; Like this; Just can be under the situation of the control system through automobile not, obtain automobile in the speed when road advances, reach the purpose of monitoring road speed.Through various ranging technologies, can detect the distance of the vehicle obstacle in going apart from the place ahead, when less than safety distance the time, report to the police, play the effect that nips in the bud.At present, the technology that can be used for ranging information collection aspect mainly contains: super sonic, radar, laser, machine vision, infrared and interactive mode etc., through these technology gather in vehicle traveling processes around information; Therefore, intelligent car borne GPS navigation anti-collision early warning system mainly by: GPS navigation module, speed calculation module, central process unit, early warning signal module, environmentally sensitive module, infrared distance measurement module, radar speed spacing module, laser ranging module, supersonic sounding module, image capture module, message processing module, image processing module, anti-high light LCDs etc. are formed, and can be installed in the shield glass; Wiper scrapes the central authorities of scope; To guarantee its working environment, in running car, by GPS navigation module output GPS position signal, parameter; With data such as running orbit, distance to speed calculation module; Speed calculation module is worth instant average velociity according to the speed calculation of per second, and simultaneously, laser ranging module, ultrasonic distance measuring module or out of Memory acquisition module are found range to travel direction; And with speed signal and range signal input central process unit; Central process unit sends early warning signal to early warning signal module and anti-high light LCDs, at this moment according to speed, apart from the result of calculation of early warning value formula; The LCDs demonstration switches to the distance warning pattern; The early warning module is sent voice and caution tone, prompting driver processings of slowing down, and intelligent car borne GPS navigation anti-collision early warning system detects speed, when being in safety value; The LCDs demonstration switches to navigationchart, and the early warning module stops prompting.
Because on express highway, the front and back two cars is equidirectional proal, so the spacing of two cars approaches needs the time; As long as approach less than the theoretical velocity safety distance, forewarn system is early warning in time just, could fundamentally prevent the generation of rear-end collision like this; Than the sort of operation of taking over the driver to will have an accident the time by collision avoidance system, to shift to an earlier date in time, the driver can in time be handled it; So safer, cost is lower.
It is main safe exploring laser light that the laser ranging module is used with the semiconductor laser; Human eye there is not injury; Detection range be 6 meters～more than 120 meters; Be the main ranging module of running at high speed, the ultrasonic transduter of vehicle body both sides carries out monitoring through the safety distance of ultrasonic distance measuring module to the vehicle body both sides.(going in the city) below 50 kilometers and heavy rain, night etc. during the complicated meteorology situation when the speed of a motor vehicle, ultrasonic distance measuring module was started working before the environmentally sensitive module started car, so that more reliable, safe guarantee to be provided.When the more complicated meteorologies of reply; Control corresponding radar speed spacing module, image capture module and infrared distance measurement module by the environmentally sensitive module according to the outer weather environment of the car of its perception and carry out range finding work, to guarantee the anti-collision early warning function when the complicated meteorology; Afterbody at car can be installed camera and ultrasonic transduter, and it is auxiliary to be used for reversing at ordinary times, can also send a car to the back under steam and find range; The image of the signal of ultrasonic transduter and camera picked-up is sent to central process unit and handles through message processing module, image processing module, when finding spacing that knock into the back dangerous too closely arranged; Being installed in afterbody annunciator in the rear auto window will send caution light and point out with literal, pattern; Or light high-mount stop lamp, remind the deceleration of sending a car, in the greasy weather; Through the environmentally sensitive module or manually control the afterbody annunciator and light fog light; Let the back car can in time find front truck, thereby effectively prevent the danger of being sent a car and knocking into the back, reach initiatively anti-purpose of being hit.
Intelligent car borne GPS navigation anti-collision early warning system except that anti-collision early warning, navigation feature, also can have the writing function of going (driving black box), the speed when driving a vehicle with real time recording, apart from situation.Also have digital entertainment functions such as MP3, MP4, electron album, e-book simultaneously, really accomplished a tractor serves several purposes.
Description of drawings
Fig. 1 is the fundamental diagram of the embodiment of intelligent car borne GPS navigation anti-collision early warning system.
Among Fig. 1: GPS navigation module 1; Speed calculation module 2; Central process unit 3; Early warning signal module 4; Environmentally sensitive module 5; Infrared distance measurement module 6; Radar speed spacing module 7; Laser ranging module 8; Supersonic sounding module 9; Image capture module 10; Message processing module 11; Image processing module 12; Panel control key 13; Show output 14; Afterbody annunciator 15; Audio-video system 16; Read-out 17; Vehicle power amplifier 18; L set of speakers 19; R set of speakers 20; Early warning loud speaker 21; Early warning power amplifier 22.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description.
In conjunction with Fig. 1; A kind of intelligent car borne GPS navigation anti-collision early warning system of the present invention comprises GPS navigation module 1, speed calculation module 2, central process unit 3, early warning signal module 4, environmentally sensitive module 5, infrared distance measurement module 6, radar speed spacing module 7, laser ranging module 8, supersonic sounding module 9, image capture module 10, message processing module 11, image processing module 12, panel control key 13, shows output 14, afterbody annunciator 15, audio-video system 16, read-out 17, vehicle power amplifier 18, L set of speakers 19, R set of speakers 20, early warning loud speaker 21, early warning power amplifier 22.Export GPS position signal, parameter and data such as running orbit, distance to speed calculation module 2 by GPS navigation module 1; Be worth instant average velociity to be input to central process unit 3 by speed calculation module 2 according to the speed calculation of per second; Simultaneously; Find range by various range finder modules, generally select the mode of operation of finding range according to the speed of a motor vehicle to car the place ahead by laser ranging module 8, ultrasonic distance measuring module 9, also can by environmentally sensitive module 5 according to the outer ambient conditions of car select laser ranging module 8, ultrasonic distance measuring module 9, infrared distance measurement module 6, radar speed spacing module 7 one, two kind travel direction found range; And with speed signal and range signal input information processing module 11; Central process unit 3, or select image capture module 10, image processing module 12 that information processing data is imported central process unit 3, central process unit is according to speed, apart from the result of calculation of early warning value formula; Send early warning signal to early warning signal module 4 and demonstration output 14, read-out 17; At this moment, the LCDs demonstration switches to the distance warning pattern, and early warning power amplifier 22, early warning loud speaker 21 and vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 are sent voice and caution tone; The prompting driver processing of slowing down; Intelligent car borne GPS navigation anti-collision early warning system detects speed, distance when being in safety value, and LCDs shows and switch to navigationchart that early warning signal module 4 stops prompting; Supersonic sounding module 9 receive the sensor that is installed on the rear bumper apart from approximation signal the time, central process unit 3 starts afterbody annunciators 15, reminds the back car to slow down, and reaches initiatively anti-purpose of being hit.Through panel control key 13, can carry out artificial setting working parameter and the vehicle entertainment system of being made up of audio-video system 16, read-out 17, vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 is carried out control operation.
Export the GPS information parameter to speed calculation module 2 by GPS navigation module 1; Draw instant average velociity by speed calculation module 2 computing values and be input to central process unit 3; Simultaneously; Environmentally sensitive module 5 according to ambient conditions at that time select laser ranging module 8, ultrasonic distance measuring module 9, infrared distance measurement module 6, radar speed spacing module 7 one, two kind travel direction found range, and with speed signal and range signal input information processing module 11, central process unit 3; Or select image capture module 10, image processing module 12 that information processing data is imported central process unit 3; Central process unit sends early warning signal to early warning signal module 4 and demonstration output 14, read-out 17, at this moment according to speed, apart from the result of calculation of early warning value formula; The LCDs demonstration switches to the distance warning pattern; Early warning power amplifier 22, early warning loud speaker 21 and vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 are sent voice and caution tone, prompting driver processings of slowing down, and intelligent car borne GPS navigation anti-collision early warning system detects speed, when being in safety value; The LCDs demonstration switches to navigationchart, and early warning signal module 4 stops prompting; Supersonic sounding module 9 receive the sensor that is installed on the rear bumper apart from approximation signal the time, central process unit 3 starts afterbody annunciators 15, reminds the back car to slow down, and reaches initiatively anti-purpose of being hit.Through panel control key 13, can carry out artificial setting working parameter and the vehicle entertainment system of being made up of audio-video system 16, read-out 17, vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 is carried out control operation.After installing USB interface additional, but incoming memory also, and the content that reads on USB flash disk or the SD card is play, and simultaneously, also can make it have the writing function of going (driving black box), the speed when driving a vehicle with real time recording, apart from situation.
, draw instant average velociity by speed calculation module 2 computing values and be input to central process unit 3, simultaneously to speed calculation module 2 by GPS navigation module 1 output GPS information parameter; Laser ranging module 8, ultrasonic distance measuring module 9, travel direction is found range; And with speed signal and range signal input information processing module 11, central process unit 3, central process unit is according to speed, apart from the result of calculation of early warning value formula; Send early warning signal to early warning signal module 4 and demonstration output 14, read-out 17; At this moment, the LCDs demonstration switches to the distance warning pattern, and early warning power amplifier 22, early warning loud speaker 21 and vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 are sent voice and caution tone; The prompting driver processing of slowing down; Intelligent car borne GPS navigation anti-collision early warning system detects speed, distance when being in safety value, and LCDs shows and switch to navigationchart that early warning signal module 4 stops prompting; Supersonic sounding module 9 receive the sensor that is installed on the rear bumper apart from approximation signal the time, central process unit 3 starts afterbody annunciators 15, reminds the back car to slow down, and reaches initiatively anti-purpose of being hit.Through panel control key 13, can carry out artificial setting working parameter and the vehicle entertainment system of being made up of audio-video system 16, read-out 17, vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 is carried out control operation.
, draw instant average velociity by speed calculation module 2 computing values and be input to central process unit 3, simultaneously to speed calculation module 2 by GPS navigation module 1 output GPS information parameter; Laser ranging module 8, ultrasonic distance measuring module 9, travel direction is found range; And with speed signal and range signal input information processing module 11, central process unit 3, central process unit is according to speed, apart from the result of calculation of early warning value formula; Send early warning signal to early warning signal module 4 and demonstration output 14, read-out 17; At this moment, the LCDs demonstration switches to the distance warning pattern, and early warning power amplifier 22, early warning loud speaker 21 send voice and caution tone; The prompting driver processing of slowing down; Intelligent car borne GPS navigation anti-collision early warning system detects speed, distance when being in safety value, and LCDs shows and switch to navigationchart that early warning signal module 4 stops prompting; Supersonic sounding module 9 receive the sensor that is installed on the rear bumper apart from approximation signal the time, central process unit 3 starts afterbody annunciators 15, reminds the back car to slow down, and reaches initiatively anti-purpose of being hit.Through panel control key 13, can carry out manual work setting working parameter and carry out control operation.
, draw instant average velociity by speed calculation module 2 computing values and be input to central process unit 3, simultaneously to speed calculation module 2 by GPS navigation module 1 output GPS information parameter; Laser ranging module 8, ultrasonic distance measuring module 9, travel direction is found range; And with speed signal and range signal input information processing module 11, central process unit 3, central process unit is according to speed, apart from the result of calculation of early warning value formula; Send early warning signal to early warning signal module 4 and demonstration output 14, read-out 17; At this moment, the LCDs demonstration switches to the distance warning pattern, and early warning power amplifier 22, early warning loud speaker 21 send voice and caution tone; The prompting driver processing of slowing down; Intelligent car borne GPS navigation anti-collision early warning system detects speed, distance when being in safety value, and LCDs shows and switch to navigationchart that early warning signal module 4 stops prompting; Through panel control key 13, can carry out manual work setting working parameter and carry out control operation.
Being exclusively used in the embodiment that prevents by the back car knocks into the back is: at camera and ultrasonic transduter that the afterbody of car is installed, it is auxiliary to be used for reversing at ordinary times, is used under steam finding range to sending a car at the back; The image of the signal of ultrasonic transduter and camera picked-up is sent to central process unit 3 and handles through message processing module 11, image processing module 12, when finding spacing that knock into the back dangerous too closely arranged; Being installed in afterbody annunciator 15 in the rear auto window will send caution light and point out with literal, pattern; Or light high-mount stop lamp, remind the deceleration of sending a car, in the greasy weather; Through environmentally sensitive module 5 or manually control the afterbody annunciator and light fog light; Let the back car can in time find front truck, thereby effectively prevent the danger of being sent a car and knocking into the back, reach initiatively anti-purpose of being hit.
Claims (9)
1. intelligent car borne GPS navigation anti-collision early warning system; It is characterized in that; Comprise GPS navigation module 1, speed calculation module 2, central process unit 3, early warning signal module 4, environmentally sensitive module 5, infrared distance measurement module 6, radar speed spacing module 7, laser ranging module 8, supersonic sounding module 9, image capture module 10, message processing module 11, image processing module 12, panel control key 13, show output 14, afterbody annunciator 15, audio-video system 16, read-out 17, vehicle power amplifier 18, L set of speakers 19, R set of speakers 20, early warning loud speaker 21, early warning power amplifier 22; Have in vehicle traveling process; By GPS test the speed, range finder module range finding; Before in time finding car, might cause the function of rear end collision behind the car; And send the acousto-optic alarm signal, remind that this car and back car driver normally drive a vehicle, safe driving, and have GPS navigation and video/audio function; Intelligent car borne GPS navigation anti-collision early warning system, and need not automotive control system is done any repacking.
2. intelligent car borne GPS navigation anti-collision early warning system according to claim 1; It is characterized in that; Described GPS navigation module 1 output gps signal, parameter and data calculate instantaneous velocity by speed calculation module 2 and are input to central process unit 3, simultaneously to speed calculation module 2; By environmentally sensitive module 5 according to the outer ambient conditions of car select laser ranging module 8, ultrasonic distance measuring module 9, infrared distance measurement module 6, radar speed spacing module 7 one, two kind travel direction found range; And with speed signal and range signal input information processing module 11, central process unit 3 selects image capture module 10, image processing module 12 that information processing data is imported central process unit 3; Central process unit 3 sends early warning signal according to speed, apart from the result of calculation of early warning value formula.
3. intelligent car borne GPS navigation anti-collision early warning system according to claim 1; It is characterized in that; After described early warning signal sent to early warning signal module 4 and shows output 14, the demonstration of read-out 17 switched to the distance warning pattern, and early warning power amplifier 22, early warning loud speaker 21 and vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 are sent voice and caution tone; The prompting driver processing of slowing down; The GPS navigation anti-collision early warning system detects speed, distance when being in safety value, and the demonstration of read-out 17 switches to navigationchart, and early warning signal module 4 stops prompting.
4. intelligent car borne GPS navigation anti-collision early warning system according to claim 1; It is characterized in that, camera that the afterbody of described car is installed and the ultrasonic transduter on the rear bumper, it is auxiliary to be used for reversing at ordinary times; Be used under steam finding range to sending a car at the back; The image of picked-up, apart from approximation signal, be sent to central process unit 3 and handle through image processing module 12, message processing module 11, central process unit 3 starts afterbody annunciators 15; Reach and remind the back car to slow down, initiatively anti-purpose of being hit.
5. intelligent car borne GPS navigation anti-collision early warning system according to claim 1; It is characterized in that described afterbody annunciator 15 is installed in the rear auto window, can send caution light and literal, pattern prompting during work; Light high-mount stop lamp; The prompting deceleration of sending a car in the greasy weather, is lighted fog light through environmentally sensitive module and manual control afterbody annunciator 15.
6. intelligent car borne GPS navigation anti-collision early warning system according to claim 1; It is characterized in that described panel control key 13 can carry out artificial setting working parameter and the vehicle entertainment system of being made up of audio-video system 16, read-out 17, vehicle power amplifier 18, L set of speakers 19, R set of speakers 20 is carried out control operation; Pass through USB interface; But incoming memory, the content that reads on USB flash disk or the SD card is play, simultaneously; Has the writing function of going (driving black box), the speed in real time recording when driving, apart from situation.
7. intelligent car borne GPS navigation anti-collision early warning system according to claim 1 is characterized in that, described laser ranging module 8, ultrasonic distance measuring module 9 are selected the mode of operation of finding range to car the place ahead according to the speed of a motor vehicle.
8. intelligent car borne GPS navigation anti-collision early warning system according to claim 1 is characterized in that, described laser ranging module exploring laser light safe in utilization does not have injury to human eye.
9. intelligent car borne GPS navigation anti-collision early warning system according to claim 1 is characterized in that, the ultrasonic transduter of said vehicle body both sides carries out monitoring through the safety distance of ultrasonic distance measuring module to the vehicle body both sides.
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Application publication date: 20120718 |