CN1529293A - Expressway interval signal early warning system - Google Patents
Expressway interval signal early warning system Download PDFInfo
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- CN1529293A CN1529293A CNA031544541A CN03154454A CN1529293A CN 1529293 A CN1529293 A CN 1529293A CN A031544541 A CNA031544541 A CN A031544541A CN 03154454 A CN03154454 A CN 03154454A CN 1529293 A CN1529293 A CN 1529293A
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Abstract
In the system, highway is divided into several close sections end to end. Vehicle detector composed of detector, microprocessor, power source, and flash alertor is setup in section of high way at each place with equidistance between them. Each detector through bus is connected to each other, and system bus is connected to computer in command center. The invention can prevent and reduce occurrence of accident of overtaking collision and pileup greatly as well as raise speed of vehicle and security. It is not needed to add any equipment or fittings to vehicle, and cost of the system is low. The invention is suitable to the situation of our country.
Description
Technical field
The invention belongs to intelligent transportation system (ITS:INFORMATION TRANSPORT SYSTEM) field, particularly a kind of interval signal early warning system for expressway.
Background technology
In the later stage eighties, developed country is crowded day by day for the road traffic that common solution is faced, and the road network traffic capacity does not adapt to the problem of volume of traffic sharp increase demand, and the experimental study of intelligent traffic transportation management system is carried out in beginning on a large scale.The ITS research starting of Japan is morning, and existing practical product puts goods on the market, and for example, existing 200,000 cars (till nineteen ninety-five) have been equipped the road and led device (traffic-information service device).The ITS of U.S. research is started late, and just began investment in 1991 to develop research, but development is rapid.The U.S., Europe, Japan three big study bases have been formed at present in the world, respectively at separately ITS America, ERTICO (European Road Transport Telematic Implementation CoordinationOrganization) and VERTIS (Vehicle, Road and Traffic Intelligence Society) under the coordinative command, carrying out the research that differs from one another.
Because ITS is in the development experiments stage, its function and scale constantly develop expansion, and the description of its formation also is not quite similar.With the U.S. is example, and the ITS development project can be divided into seven classes, and the system relevant with the present invention is summarized as follows:
1. Xian Jin driver information system ADIS (Advanced Driver Information System)
This system provides relevant trip information to the user, improves Transportation Demand Management.This system and ATMS system are combined, and the driver just can obtain various transport information (road conditions, traffic, service facility position and tour guide information etc.) by truck-mounted computer and wireless telecommunications.The driver can utilize vehicle mounted positioning navigation system (GPS) to provide starting point and destination on truck-mounted computer, truck-mounted computer and control center carry out both-way communication, can select best travel route automatically according to Real-time Traffic Information, avoid traffic congestion and obstruction.This system has improved people's trip ability and safety coefficient, choose reasonable trip mode and route, thus make the traffic flow on the road network obtain the balance distribution, reduce congested in traffic and obstruction, also can promote the use of high occupation rate vehicle, thereby improve conevying efficiency.
2. Xian Jin vehicle control system AVCS (Advanced Vehicle Control System)
The purpose of AVCS is that exploitation helps the driver to carry out the various technology of automotive vehicle control, thereby makes ride safety of automobile, efficient.The AVCS field comprises driver's warning and help, avoids and driving technology automatically such as barrier collision.In fact, AVCS has the most long-term potential benefit, also departments such as automobile engineering, electronic engineering has been proposed maximum challenge simultaneously.
3. Xian Jin rural traffic system ARTS (Advanced Rural Transport System)
This system is included as the wireless emergency distress system that driver and victim of the accident provide assistance, the real-time alerting system of unfavorable road and traffic environment, and about driver's service facility and infosystems such as tourism route, sight spot.
4. automatic high speed highway system AHS (Automated Highway System)
This system comprises vehicle self-navigation and control, automatic traffic management, and accident treatment robotization.
In a word, more than all systems be intended to collect the highway car stream information as far as possible, and concentrate and to feed back in traffic monitoring command centre, be convenient to vehicle scheduling, shunting, enforcement monitoring or the like.But the neither one system accomplishes to work as specially the mishap generation on the highway major trunk roads (too slow as certain car speed of a motor vehicle---be lower than minimum speed limit or hinder temporary parking for some reason), immediately back car is given to warn in advance by automatic system, make its deceleration and observe and to take measures again after clear.Though some also can reach similar purpose, lead device by the whole world wide position position location satellite (GPS) and truck-mounted computer, road and wait and realize that it is bigger to promote difficulty.
Chinese patent application 02113003.5 discloses a kind of early warning system that prevents that highway from knocking into the back and colliding.Its technical scheme is to comprise central processing unit CP and the detection line DL that is made up of microwave detector, road terminal and alarm indicator; Detection line DL is installed in the inboard of express highway all-way two-way lane equally spacedly and is connected with central processing unit CP by data transmission link L1, each detection line is connected with detection line before and after it respectively, and the road terminal among the detection line DL is connected with alarm indicator with microwave detector respectively.Comprise in the method for early warning with detection line numbering, car number, by time, roadside and send the coherent detection line to apart from the information code character of, the instant speed of a motor vehicle and the normal speed of a motor vehicle.Compile, handle the information that all detection lines of all fronts send by central processing unit at last, show the real time position and the traffic safety situation of all vehicles completely.
Above-mentioned early warning system does not have the notion of closed interval, it detects vehicle " physical location " by detection line is that system is according to the residing position of vehicle, as following distance, vehicle speed, the relative velocity of forward and backward car and information such as position, residing track self go to judge, comprehensively judge whether to report to the police or alarm.But the real time position of vehicle is very difficult detected at any time in actual applications.
In addition, the above-mentioned quantity of information that early warning system transmitted is very big, comprise detection line numbering, car number, by time, roadside apart from series codings such as, the instant speed of a motor vehicle, the normal speed of a motor vehicle.Especially the problem of car number, if be mode by artificial input, implementing all-the-way tracking and sign is to be difficult to realize.If employing video labeling, requirement is adorned a camera or car plate recognizer at per 100 meter amperes, and the quantity of information that system transmits is too big, and system cost is too high, if do not adopt on vehicle the additional electron sign, and to discern bicycle and judge it almost is impossible by wagon detector.。
Summary of the invention
The objective of the invention is to by highway is carried out SIGNALS MANAGEMENT automatically, to normal property, multiple traffic events, particularly the accident symptom of a trend sent out, can in time send warning signal in advance to driving vehicle in forward and backward side's certain distance, remind forward and backward side's vehicle to note slowing down, avoid the generation of pernicious major issues such as knocking into the back, continuous many cars knock into the back.
Realization of the present invention is based on " closed interval " and " monitoring network " two theoretical foundations.
The theoretical foundation of closed interval is: within a certain period of time, the vehicle number that enters the closed interval must equal to leave this interval vehicle number.
The theoretical foundation of monitoring network is: by the check point collection vehicle operation information that equidistantly distributes, and the information of handling according to preset program through microprocessor is connected to each other in the mode of communications protocol, formation can reach the network system of our design function, and this network system is connected with the computing machine of traffic control center.
For achieving the above object, technical scheme of the present invention is to implement like this:
A kind of interval signal early warning system for expressway comprises wagon detector 6, system bus 5, it is characterized in that:
Described early warning system is divided into several end to end sealing highway sections with a highway, each equidistant position is provided with described wagon detector 6 in described sealing highway section, described each wagon detector 6 links to each other by system bus 5, and described system bus 5 is connected with command centre computing machine 7;
Described wagon detector 6 comprises vehicle detector 3, microprocessor 1, power supply 2 and flash of light alarm device 4; Described microprocessor 1 links to each other with described flash of light alarm device 4 on the one hand by described power supply 2, is connected with described system bus 5 on the other hand;
Vehicle detector 3 with detectable signal through microprocessor 1 analyzing and processing, judge that vehicle is in the information that abnomal condition travels after, import the flash of light alarm device 4 of described current wagon detector 6; Simultaneously signal is transferred to other relevant wagon detector 6 and command centre's computing machines 7 by system bus 5.
In concrete enforcement, the vehicle detector 3 of described wagon detector 6 can be selected from least a in the following detector: magnetic field detectors, laser detector, infrared thermal release electric detector, infrared eye, ultrasonic or acoustic detector, electronic identity recognition detector.
In concrete enforcement, the vehicle detector 3 of described wagon detector 6 is good with the dual discriminating detector that is become with the sound wave sets of signals by micro radar.
In the application of reality, the length in described each highway section can be 10～50 kilometers; The gap length of described each wagon detector 6 can be 50～300 meters.
In the application of reality, the length in described each highway section is good with 20～50 kilometers; The gap length of described each wagon detector 6 is good with 100 meters.
In the application of reality, described wagon detector 6 is preferably disposed on the isolation strip, center of bidirectional high speed highway, and first wagon detector 6 in each highway section will be in the state of often opening.
In the application of reality, described system bus 5 transmits signal in the mode of CANBUS communications protocol.
In the application of reality, described flash of light alarm device 4 can be made up of super bright red light emitting diodes.
In the application of reality, the vehicle detector 3 of described wagon detector 6 is the dual discriminating detectors that become with the sound wave sets of signals by micro radar; The length in described each highway section is 20～50 kilometers; The spacing distance of described each wagon detector 6 is 100 meters; Described wagon detector 6 is arranged on the isolation strip, center of bidirectional high speed highway, and the monitoring system in up-downgoing highway section is separated and established one's own system, and does not connect mutually, and first wagon detector 6 in each highway section is in the state of often opening; Described system bus 5 transmits signal in the mode of CANBUS communications protocol; Described flash of light alarm device 4 is made up of super bright red light emitting diodes.
In the application of reality, described command centre computing machine 7 is used for omnidistance road monitoring, and described command centre computing machine 7 receives the alerting signal of being sent by each wagon detector 6, sends the audible and visual alarm signal and preserves the alarm record.
Can learn by above-mentioned explanation, the technical program is divided into highway in the highway section of sealing, and each equidistant position is provided with described wagon detector in described sealing highway section, based on vehicle count, in the interval of sealing, the vehicle that the vehicle that enters necessarily equals away, so, wagon detector is basic function with the counting, in conjunction with the situation of upstream and downstream, judges and determine whether report to the police by microprocessor.Only transmit simultaneously the information (comprising counting and enabling signal) that vehicle passes through, and signal is reported and submitted command centre.In addition, detector of the present invention adopts the detection mode of microwave sounding and acoustic sounding double combination, can avoid the interference of non-signals of vehicles (as when cleaning or service worker when occurring) to system.
The present invention passes through the dynamically management in time to vehicle in service, even when rain, mist, snow weather, generally also can not close highway.Particularly at night and dusk, when morning, sight line was bad, the present invention more can bring into play the native system effect, and road speed and security are improved greatly.Use the present invention, can prevent and reduce the shunt into one another generation of accident of rear-end collision significantly.
The present invention is a kind of a kind of intelligent transportation management system that can standard be applied to highway, and it need not to increase any equipment and accessory on vehicle simultaneously, and the cost of system configuration is not high yet.Therefore its special reality that adapts to China's national situation and express highway intelligent transportation management system has very broad application prospects.
Description of drawings
Fig. 1 is the circuit block diagram of wagon detector of the present invention;
Fig. 2 is an interval signal early warning system for expressway synoptic diagram of the present invention
Fig. 3 is the profile synoptic diagram of wagon detector of the present invention;
Wherein among Fig. 3,11 represent top covers, 8 expression radar detection window acoustic sounding windows, the super bright LED array of 9 expressions, 10 expression firm bankings.
Describe the architectural feature and the duty of system of the present invention in detail below in conjunction with concrete embodiment.
Embodiment
Present embodiment is divided into several end to end sealing highway sections with operating highway, and described sealing highway section is meant the location that does not have vehicles such as fork in the road and service area to shunt or be detained in the middle of the highway section.According to above-mentioned requirements, the distance in each highway section can not wait for 20～50 kilometers.Each wagon detector is spaced apart 100 meters in each above-mentioned highway section.Described each wagon detector 6 links to each other by system bus 5, and described system bus 5 is connected with command centre computing machine 7.
Described wagon detector 6 comprises vehicle detector 3, microprocessor 1, power supply 2 and flash of light alarm device 4; Described microprocessor 1 links to each other with described flash of light alarm device 4 on the one hand by described power supply 2, on the other hand, is connected with described system bus 5.
First wagon detector 6 in each unit of this signal early warning system is in continuous duty, in case there is vehicle to enter, will send enabling signal to next stage wagon detector 6 immediately, microprocessor 1 in each wagon detector is in holding state when flat, in case receive the signal that the upper level wagon detector sends through network-bus 5, microprocessor 1 sends instruction and gives power supply 2, the twofold detection device 3 of microwave radar and sound wave is started working, to road surface emission detection microwave field.
Passing through of detected vehicle is divided into following several situation:
A. when vehicle with normal speed (as 50-110 kilometer/hour) by the time, the vehicle detector 3 of wagon detector 6 detect signal that vehicle normally passes through, and confirm through acoustic signals after, the digital signal after the conversion is conveyed to microprocessor 1.Through the analysis and judgement of microprocessor 1, if in the limiting time of default, think that then vehicle speed is normal, belong to normally and pass through.So continue to send enabling signal to next interval wagon detector 6, make the 6 startup work of next stage wagon detector, go on successively.
B. when vehicle be trapped in interval in or the speed of a motor vehicle slow excessively, in limiting time (if the minimum speed limit of the highway of this section is 50 kilometers/hour, then pass through one 100 meters interval, its time should be not more than 7.2 seconds) fail to arrive this check point, just wagon detector 6 does not detect the signal that vehicle passes through, at this moment system then think this vehicle be trapped in this interval or speed too slow, so the command signal of sending (geocoding that contains this wagon detector 6) is given the wagon detector 6 in this interval downstream (rear of direction is entered by garage), make downstream 8-10 super bright red diodes dot matrix 3 low frequency flicker on the interval wagon detector 6 luminous, follow-up vehicle to the downstream sends early warning signal, reminds back car Reduced Speed Now.
If b---1. this car passes through this interval during reporting to the police, then said process down carries out successively, for example: individual tractor or fault car low speed driving on highway are arranged, and its rear will continue to have the flashing light alarm district of 800-1000 rice to continue to follow this vehicle operating, leave highway until it.
If b---2. this vehicle is trapped in this interval because of a variety of causes, the downstream direction in its highway section will continue to report to the police, and the time surpassed after 2-5 minute, and then wagon detector 6 will send event report, event occurs to the traffic control center report by grid, requires the patrol personnel to take measures.
If C. interval wagon detector 6 detected vehicles by the time less than limiting time (if the Maximum speed limit of this section highway is 120 kilometers/hour, then its time by these 100 meters intervals should be not less than 3 seconds) system then is judged to this overspeed of vehicle and travels, and immediately by system upstream (the place ahead of direction is entered by garage) wagon detector 6 send the overspeed warning signal.At this moment the 3-5 of upstream interval wagon detector will send the ruddiness alerting signal of quick flash of light immediately, and all are sent alarm signal by this interval vehicle, remind the deceleration of hypervelocity car and remind other car vigilance.If 5-10 interval lasting this state promptly might be that malice exeeds the regulation speed continuously, when still not slowing down above 5-10 interval, system is the notice traffic control center automatically, requires the patrol personnel to take measures.
D. when cut-in situation occurs in check point just, the microwave radar of wagon detector 6 and the vehicle detector of sound wave 3 may the lateral attitude is overlapping vehicle erroneous judgement be that a vehicle passes through signal, and send signal to 8-10 wagon detector of its direction to the car immediately, make it send alerting signal, the microprocessor that it is next or several interval wagon detectors are interior is with linkage work simultaneously, and judgement is overtaken other vehicles or had vehicle to be detained.During this period of time, if detecting, its vehicle detectors 3 next or several intervals enter the vehicle number that interval vehicle number is less than the interval, then the microprocessor 1 of this check point will make it stop to report to the police automatically to sending signal in the 10-16 that is reporting to the police interval that has taken place according to the counting (interval enters vehicle number more than leaving vehicle number) that does not meet logic.
Native system is by the automatic detection to vehicle in the highway section, hypervelocity, low speed and the temporary parking of vehicle in the highway section, contingent knock into the back or the like are carried out timely, synchronous monitoring, the automatic simultaneously operational vehicle to upstream and downstream sends to be reminded and early warning signal, thereby avoids the generation of pernicious major issues such as knocking into the back, continuous many cars knock into the back.
Claims (10)
1. an interval signal early warning system for expressway comprises wagon detector (6), system bus (5), it is characterized in that:
Described early warning system is divided into several end to end sealing highway sections with a highway, each equidistant position is provided with described wagon detector (6) in described sealing highway section, described each wagon detector (6) links to each other by system bus (5), and described system bus (5) is connected with command centre's computing machine (7);
Described wagon detector (6) comprises vehicle detector (3), microprocessor (1), power supply (2) and flash of light alarm device (4); Described microprocessor (1) links to each other with described flash of light alarm device (4) on the one hand by described power supply (2), is connected with described system bus (5) on the other hand;
Vehicle detector (3) with detectable signal through microprocessor (1) analyzing and processing, judge that vehicle is in the information that abnomal condition travels after, import the flash of light alarm device (4) of described current wagon detector (6); Simultaneously signal is transferred to other wagon detectors (6) and command centre's computing machine (7) by system bus (5).
2. interval signal early warning system for expressway as claimed in claim 1 is characterized in that:
The vehicle detector (3) of described wagon detector (6) is selected from least a in the following detector: magnetic field detectors, laser detector, infrared thermal release electric detector, infrared eye, ultrasonic or acoustic detector, electronic identity recognition detector.
3. interval signal early warning system for expressway as claimed in claim 1 is characterized in that:
The vehicle detector (3) of described wagon detector (6) is the dual discriminating detector that is become with the sound wave sets of signals by micro radar.
4. interval signal early warning system for expressway as claimed in claim 1 is characterized in that:
The length in described each highway section is 10～50 kilometers; The gap length of described each wagon detector (6) is 50～300 meters.
5. interval signal early warning system for expressway as claimed in claim 1 is characterized in that: the length in described each highway section is 20～50 kilometers; The gap length of described each wagon detector (6) is 100 meters.
6. interval signal early warning system for expressway as claimed in claim 1 is characterized in that: described wagon detector (6) is arranged on the isolation strip, center of bidirectional high speed highway, and first wagon detector (6) in each highway section is in the state of often opening.
7. interval signal early warning system for expressway as claimed in claim 1 is characterized in that: described system bus (5) transmits signal in the mode of CANBUS communications protocol.
8. interval signal early warning system for expressway as claimed in claim 1 is characterized in that: described flash of light alarm device (4) is made up of super bright red light emitting diodes.
9. interval signal early warning system for expressway as claimed in claim 1 is characterized in that: the vehicle detector (3) of described wagon detector (6) is the dual discriminating detector that is become with the sound wave sets of signals by micro radar; The length in described each highway section is 20～50 kilometers; The gap length of described each wagon detector (6) is 100 meters; Described wagon detector (6) is arranged on the isolation strip, center of bidirectional high speed highway, and first wagon detector (6) in each highway section is in the state of often opening; Described system bus (5) transmits signal in the mode of CANBUS communications protocol; Described flash of light alarm device (4) is made up of super bright red light emitting diodes.
10. as the described interval signal early warning system for expressway of one of claim 1～9, it is characterized in that: described command centre computing machine (7) is used for omnidistance road monitoring, described command centre computing machine (7) receives the alerting signal of being sent by each wagon detector (6), sends the audible and visual alarm signal and preserves the alarm record.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031544541A CN1529293A (en) | 2003-09-29 | 2003-09-29 | Expressway interval signal early warning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031544541A CN1529293A (en) | 2003-09-29 | 2003-09-29 | Expressway interval signal early warning system |
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| CN1529293A true CN1529293A (en) | 2004-09-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840636A (en) * | 2010-06-01 | 2010-09-22 | 苏州位置科技有限公司 | Real-time traffic flow monitoring and early warning induction management system for highway and monitoring method |
| CN101949136A (en) * | 2010-09-29 | 2011-01-19 | 杨汉池 | Early warning system for preventing chain collision of vehicles on highway |
| CN106128033A (en) * | 2016-08-19 | 2016-11-16 | 沈阳天久信息技术工程有限公司 | A kind of turnpike driving person's fatigue driving warning system and control method thereof |
| CN106887159A (en) * | 2015-03-30 | 2017-06-23 | 泉州市汇龙文化发展有限公司 | Based on the early warning plan that vehicle is travelled on a highway |
| CN110570688A (en) * | 2019-08-30 | 2019-12-13 | 唐山茁棋科技发展有限公司 | Radar data processing device and signal data processing method |
| CN114267172A (en) * | 2021-11-19 | 2022-04-01 | 山西省交通运输安全应急保障技术中心(有限公司) | Road sectional traffic conflict risk early warning system and method thereof |
-
2003
- 2003-09-29 CN CNA031544541A patent/CN1529293A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840636A (en) * | 2010-06-01 | 2010-09-22 | 苏州位置科技有限公司 | Real-time traffic flow monitoring and early warning induction management system for highway and monitoring method |
| CN101949136A (en) * | 2010-09-29 | 2011-01-19 | 杨汉池 | Early warning system for preventing chain collision of vehicles on highway |
| CN106887159A (en) * | 2015-03-30 | 2017-06-23 | 泉州市汇龙文化发展有限公司 | Based on the early warning plan that vehicle is travelled on a highway |
| CN106128033A (en) * | 2016-08-19 | 2016-11-16 | 沈阳天久信息技术工程有限公司 | A kind of turnpike driving person's fatigue driving warning system and control method thereof |
| CN110570688A (en) * | 2019-08-30 | 2019-12-13 | 唐山茁棋科技发展有限公司 | Radar data processing device and signal data processing method |
| CN114267172A (en) * | 2021-11-19 | 2022-04-01 | 山西省交通运输安全应急保障技术中心(有限公司) | Road sectional traffic conflict risk early warning system and method thereof |
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