CN102201164B - A kind of self-adaptation urban traffic blocking quick-reaction system - Google Patents

A kind of self-adaptation urban traffic blocking quick-reaction system Download PDF

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CN102201164B
CN102201164B CN201010130880.6A CN201010130880A CN102201164B CN 102201164 B CN102201164 B CN 102201164B CN 201010130880 A CN201010130880 A CN 201010130880A CN 102201164 B CN102201164 B CN 102201164B
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roadside
detection
vehicle
controller
information
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CN201010130880.6A
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CN102201164A (en
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不公告发明人
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数伦计算机技术(上海)有限公司
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Abstract

The invention provides a kind of self-adaptation urban traffic blocking quick-reaction system, comprising: centring system: the information that the roadside detector be connected with it, roadside controller for detection transmission are returned is processed, after analysis, result is passed back; Roadside detector: utilize integrated sensor cable device to detect road traffic state and result of detection sent back to centring system and adjacent roadside detector and roadside controller for detection; Roadside controller for detection: can the magnitude of traffic flow relevant to this section or crossing and congestion be detected and be analyzed and control traffic lights length, wireless short-distance information delivery apparatus and dynamic information tag; Dynamic Announce board on road: exchange information, by Dynamic Announce after this information analysis with centring system and adjacent roadside controller for detection; And information subsystem: be connected with centring system, by number of ways to driver's specific aim broadcasting traffic information.The present invention can find out fast and contingently blocks up and implement to control fast to eliminate at the formation initial stage blocking up.

Description

A kind of self-adaptation urban traffic blocking quick-reaction system

Technical field

The present invention relates to a kind of City ITS, especially relate to a kind of self-adaptation urban traffic blocking quick-reaction system.

Background technology

Enter 21st century, along with the steady-state growth of China's economic total volume, car owning amount increases sharply, although in road construction, city planning and means of transportation modernization aspect, government has paid a lot of effort, but traffic jam issue, auto-pollution problem, road safety issues, traffic administration problem and relate to vehicle crime problem and but day by day annoying developing China.How vehicle and road are carried out to the intelligent management of high-efficiency high-quality, caused the great attention of Party and government.Just at present, the automobile management system of China is also very immature, specifically there is following Railway Project: (1) congestion in road is Current Chinese Urban traffic first difficult problem, is almost difficult to find which city not have congestion problems.(2) criminal activity that vehicle participates in makes case-solving rate low owing to escaping rapidly.(3) vehicle is robbed theft case and is emerged in an endless stream, and national vehicle in 2004 is stolen and robbed case 87249, and average every day 240, direct damage to property reaches 8,000,000,000 yuans, accounts for 24% of the direct damage to property of whole criminal case.(4) illegal operation event remains incessant after repeated prohibition, particularly deck phenomenon is very serious, this not only to have allowed by car owner's somehow or other back of deck traffic offence, hit-and-run " black-cooking pot ", also have impact on normal social security and traffic order, the national interests of grievous injury.(5) hidden danger of road safety aspect makes us startling, it is reported: 70% traffic hazard is relevant with overload, and the direct economic loss caused every year thus reaches 3,000,000,000 yuan.In addition, fatigue driving phenomenon is very serious.(6) vehicle that environmental protection is not up to standard is walked crosswise everywhere, the Beijing Olympic Games just terminated last year, just because environmental issue has been become very bad international influence to our country.This series of problems directly jeopardizes the peacefulness of nation's security and society, compromises the rights and interests of the operator that abides by the law, destroys the sustainable development of national economy.Although Party and government have dropped into huge manpower and material resources, these problems all could not have been solved effectively all the time.This mainly because: (1) does not have enough human resources, and existing manual registration inspection makes offender very low by the chance discovered and seized.(2) even if there are enough manpowers, because means fall behind, also can not realize the large overlapping operation of population parameter, define the difficult situation that method difficulty is complied with.From world wide, although west vehicle management has formed a set of more effective management system, along with generation and new traffic and the increase of vehicle about crime of 911 events, some advanced countries are made also to start actively to find more effective countermeasure.Facts have proved: adopt increasingly automated, intelligentized means, realize onstream inspection, become sampling observation into full inspection, increase substantially and identify have the ability of problem vehicle to be only the key addressed these problems.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, provide a kind of self-adaptation urban traffic blocking quick-reaction system, it can be found out fast and contingently blocks up and implement to control fast to eliminate at the formation initial stage blocking up.

For achieving the above object, the present invention adopts following technical scheme:

A kind of self-adaptation urban traffic blocking quick-reaction system comprises: at least one centring system: process the information that the roadside detector be connected with it, roadside controller for detection transmission are returned, result is passed back roadside detector, roadside controller for detection after analysis, wireless short-distance information delivery apparatus, Dynamic Announce board and information subsystem on road, to regulate the magnitude of traffic flow and distribution thereof; At least one roadside detector: utilize integrated sensor cable device to detect road traffic state and result of detection is sent back to centring system and roadside detector, roadside controller for detection carries out message exchange; Roadside controller for detection: except possessing the function of described roadside detector, can also analyze the magnitude of traffic flow and congestion, and control traffic lights length, wireless short-distance information delivery apparatus, and dynamic information tag, to control the magnitude of traffic flow and to dredge; Dynamic Announce board on road: exchange information with centring system and adjacent roadside controller for detection, by Dynamic Announce after this information analysis, to carry out positive guide to wagon flow; On road wireless short-distance information delivery apparatus receive local roadside controller for detection, by centring system specified associations roadside controller for detection and the instruction of centring system, and issue different multidate informations and information subsystem by autoanalysis: be connected with centring system, by number of ways to driver's specific aim broadcasting traffic information.

On described centring system, roadside detector, roadside controller for detection, road, on wireless short-distance information delivery apparatus, road, Dynamic Announce board is connected by city municipal administration net or wireless network with information subsystem, all can gather to make the information of any unit and be delivered to centring system, also can fix a point to be delivered to other relevant unit.

Described centring system forms by with lower module: safety communication module: carry out certification to all unit or platform that access centring system, and specify each intercell communication relation and communication key; Information collection module: the transport information mainly beamed back each unit of connecting system is carried out collection and stored; Traffic analysis engine: analyze the transport information of collecting, emulates selecting the control method carried out and optimizes.According to passing controling parameters or control agent under optimum traffic control algorithm or pattern to Dynamic Announce board and information subsystem on wireless short-distance information delivery apparatus, road on roadside detector, roadside controller for detection, road; And system management module: mainly monitor and managment is carried out to the operation of whole system.

Described roadside detector and roadside controller for detection are by a kind of speed of a motor vehicle to road traffic, vehicle flowrate, the vehicle flowrate history allocation proportion at least following methods, carried out comprehensive survey by the feature such as identification, vehicle acceleration and deceleration of vehicle and comprehensively analyzed, these methods include but not limited to: ground induction coil, graphical analysis, noise distribution, RFID read-write, infrared acquisition and radar detection etc.

Described crossing traffic probe unit is also connected with traffic light controller simultaneously, to control traffic lights.

On described road wireless short-distance information delivery apparatus receive local roadside controller for detection, by centring system specified associations roadside controller for detection and the instruction of centring system, and issue different multidate informations by autoanalysis.

On described road Dynamic Announce board receive local roadside controller for detection, by centring system specified associations roadside controller for detection and the instruction of centring system, and show different multidate informations by autoanalysis.

On described road, Dynamic Announce board is directly connected to the information subsystem of various places, with direct dynamic display screen information being passed to information subsystem.

Transport information is propagated to driver and motroist by the rfid system of broadcast, mobile phone, roadside detection system and crossing detection system by described information subsystem targetedly.

When the vehicle that road travels is equipped with RFID label tag, roadside detector and roadside controller for detection use rfid interrogator to identify vehicle.

Described roadside detector and roadside controller for detection, by repeating the instantaneous velocity of the RFID label tag calculating vehicle read through vehicle within equal time, calculate vehicle flowrate by the number of RFID label tag different in the unit of account time.

Described roadside detector and roadside controller for detection, when using rfid interrogator and camera device to carry out traffic detection at the same time, after camera device detects vehicle, start to read the electronic tag be attached on vehicle, judge that whether vehicle is without RFID label tag by reading situation to vehicle location and RFID, and extract vehicle characteristics and taking pictures, instantaneous velocity is calculated to the time interval that the vehicle without RFID label tag shoots with video-corder the visual field by turnover, by how many calculating vehicle flowrates of identification vehicle.

The geographic position of described centring system residing for described roadside detector and roadside controller for detection and function, and the roadside detector of there is any discrepancy relation and roadside controller for detection adjacent with this roadside controller for detection with this roadside detector are associated, its result of detection can be passed to the other side mutually by the roadside detector of such upstream and downstream and roadside controller for detection, thus the vehicle making roadside, downstream detector and roadside controller for detection calculate between two roadside detectors or roadside controller for detection travels average velocity, and upstream flowrate flows into the ratio in this direction, upstream detector then can be caught from downstream sensors the data come and calculate assignment of traffic and jam situation.

The roadside detector of upstream and roadside controller for detection are calculated by the situation in vehicle shunting each section to downstream in each section, this upstream and the average velocity respectively shunted by the data that the roadside detector in the data that oneself detect and downstream and roadside controller for detection transmit, and the relation of Negotiation speed and flow judges the jam situation in each section to downstream, each section, this upstream.

When described crossing traffic controller for detection blocking up of judging that section, downstream occurs reaches predetermined level, then begin through the wagon flow shortening and reduce to put into this direction to congested link direction clearance green light, it is that this place is to the function of direction historical traffic ratio with the order of severity of blocking up detected that block up that green light shortens the time.

When described roadside detector and roadside controller for detection find to block up, can this information be passed back centring system, and give Dynamic Announce board on the local road that is connected with it by information transmission simultaneously.

Described roadside detector and roadside controller for detection, according to the traffic lights length of time and control law dynamic adjustments crossroad, block by nothing to make vehicle or make that crossing is current reaches top efficiency.

Once the current limliting owing to blocking up in a certain direction, then because current limliting can cause this section, upstream, place that fluctuations in discharge occurs, as pump discharge deteriorates into the flow being less than vehicle, then can get congestion in these sections, thus its roadside, upstream controller for detection judgement downstream road section blocking can be caused over time and carry out second level current limliting, form third and fourth grade of current limliting by that analogy.

Described roadside detector and roadside controller for detection, can only be placed in part way crossing, as long as by calculating average velocity and the assignment of traffic that can obtain each section.

When any one block up cause more than 3 or 4 grades control time, then judge to block up to spread to comparatively large regions, for the more large area controlling as early as possible to block up spreads, system carries out charge or charge raising, to control the quantity entering this region vehicle to entering this region vehicle in real time.

The present invention is by real-time detection road block situation, the traffic lights length of timely dynamic adjustments crossroad controls and dredges vehicle, traffic congestion information is from the close-by examples to those far off sent gradually, thus reaches making full use of of road, will block up and control fast and eliminate at the formation initial stage blocking up.

Below in conjunction with accompanying drawing, the embodiment and advantages of the present invention are further explained.

Accompanying drawing explanation

Accompanying drawing 1 shows data processing network of the present invention;

Accompanying drawing 2 shows City ITS of the present invention;

Accompanying drawing 3 is another schematic diagram of City ITS of the present invention;

Accompanying drawing 4 shows the principle of work of traffic congestion quick-reaction system of the present invention;

Accompanying drawing 5 is structured flowcharts of traffic congestion quick-reaction system of the present invention;

Accompanying drawing 6 is structured flowcharts of centring system of the present invention;

Accompanying drawing 7 is another structured flowcharts of traffic congestion quick-reaction system of the present invention;

Accompanying drawing 8 shows the working condition of junction detector of the present invention and roadside detector;

Accompanying drawing 9 shows one embodiment of the invention;

Accompanying drawing 10 shows the parameters relationship of adjacent intersection;

Accompanying drawing 11a and accompanying drawing 11b shows the traffic of crossroad;

The vehicle that accompanying drawing 12a and accompanying drawing 12b shows a traffic section passes through situation.

Embodiment

The present invention is the ingredient based on RFID electronic license plate intelligent transportation system, and electronic license plate intelligent transportation system is primarily of hardware system and software systems two parts composition.Hardware system comprises electronic license plate, roadside detector, hand-held monitoring terminal, carborne detector, and centring system.

Electronic license plate is divided into metal electron car plate and window to paste electronic license plate.Band RFID chip in electronic license plate, point three regions in chip: the firstth district is read-only unique encodings, just arrange when chip dispatches from the factory, anyone can not revise; Secondth district is write and the content locked, and this district's content is write by electronic license plate center of providing and locked, and can record the fix information relevant with vehicle: VIN, license plate number, the date of production, vehicle model and label; 3rd region is writable area territory, can record multinomial information: owner information, vehicles taxes record, vehicle exhaust and annual test record.Electronic license plate has function of keeping secret, and those without authority can not read car plate content.The electronic vehicle license plate system being provided to vehicle is made up of two parts, and: a. transfinites based on state-of-the art isomorphism the Large Copacity integrated chip card of RFID technique, the function of the driving license of vehicle, vehicle maintenance registration card, vehicle access control visa card and information encryption are integrated in the RFID chip of electronic license plate, so just achieve the unification of the information platform carrier of each management system; B. active extender carries out remote and high-speed integrated card Function Extension for vehicle actual motion environment in auditing system, gate control system, security system.

Roadside detector is made up of electronic license plate read write line, controller, video camera and corresponding communication system, carries out at a distance, reads accurately at a high speed under can meeting various environment to the information of electronic license plate.Picture pick-up device can capture photo according to the instruction of centring system and image be processed to the vehicle identifying and can not read electronic license plate.The data of roadside detector collection are processed by various network interface access central control system or adjacent intersection roadside supervisory system.The connection of roadside detector and centring system guarantees the data security of equipment by the certification that carries and ciphering process.

Roadside detector can hang on the boom of roadside, and compact is as A5 paper.The communication system be connected with roadside detector then can be determined according to local line condition, both directly can be connected with roadside communications optical cable or urban network, also can adopt wireless communication mode, be sent to machine room nearby and conflux to transport information processing enter.

Hand-held monitoring terminal set electron car plate read write line and wireless communication module are in one.Handhold read-write device is carried with by law enfrocement official, for confirming the true and false of suspected vehicles electronic identity.Law enfrocement official can be read electronic license plate information and can be connected with central control system by wireless connections and transfers relevant information and the electronic license plate information of reading is mail to centring system.If there is decision for punishment, also passes central server back by terminal and process.

Carborne detector, is also mobile recognition detector, has possessed the function that roadside detector is all, has been connected by wireless network with centring system.Carborne detector is arranged on car of enforcing the law and carries out flowing law enforcement, automatically identifies not stop to the legitimacy of fleet vehicles, also can carry out mobile monitoring to car violating the regulations and pilferage vehicle.Carborne detector also can be used as temporary traffic situation sensing point and layouts in needs section.

The modules of centring system transmits data by wired, wireless data transfer mode and data center's computer.The computer of data center, after internal cryptographic, links with user on the internet.The operation that user can be correlated with to the system of oneself by the password of authorizing.Whole data handling procedure, through PKI cryptographic means, ensure that the safety and reliability that data are transmitted.

See Fig. 1, sensing point comprises the fixing sensing point formed primarily of roadside detector and roadside controller for detection and the mobile sensing point composition formed primarily of hand-held monitoring terminal or carborne detector.The data that each sensing point obtains are by after central data processing unit process, can by uses such as enforcement vehicle, intelligent transportation system, penalty note processing enters, also can be applied by other system further, total system network structure is as shown in Figure 2 comprising trust center, center of dealing out the cards, vehicle detection center, toll collection applications, logistical applications, law enforcement application and intelligent transportation of the present invention application, and shown in Fig. 3 is that total system logical diagram is comprising expressway tol lcollection and other Fare Collection Systems, City ITS and enforcement system etc.The present invention mainly elaborates the application of above-mentioned electronic system in traffic jam rapid reaction.

Principle is, after detecting that traffic jam (flow and velocity variations) occurs in this section from the sensing point that accident point is nearest, just block information is sent to and the roadside detector having vehicle to enter to occur the intersection blocking section, all directions is entered occur the vehicle flowrate summation in blocking section to reach balance with the vehicle flowrate in blocking section by the time scale adjustment of this roadside detector to the traffic lights at this crossing; And, road (the secondary current limliting road) vehicle flowrate that blocking section occurs is entered when exceeding the vehicle flowrate allowing to enter and blocking section occurs if detected, for avoiding also forming blocking on these secondary current limliting roads, then block information is also sent to and the roadside detector having vehicle to enter the intersection of secondary current limliting road by the roadside detector of secondary current limliting road, and the vehicle flowrate of the vehicle flowrate summation and secondary current limliting road that make all directions enter secondary current limliting road by the time scale adjustment of this roadside detector to the traffic lights at those crossings reaches balance.By that analogy, the traffic jam of accident point is shed by ripple one wavelength-division rapidly.

Fig. 4 is the schematic diagram of above-mentioned principle.During city's immediate vicinity generation traffic jam, first the F1 point nearest from accident point control road conditions, and accident point block information is sent to F2, F3 and G1 of being adjacent, and F4, F5 of outer one deck, G2, G3 and G1, the like, the wavelength-division of traffic jam one ripple one is fallen apart, until eliminate.

With reference to figure 5.Centring system 10 is comprised according to self-adaptation urban traffic blocking quick-reaction system 100 of the present invention; Roadside detector 14: utilize integrated sensor cable device to detect road traffic state and result of detection sent back to centring system 10 and adjacent roadside controller for detection 12; Roadside controller for detection 12: except possessing the function of described roadside detector 14, can also analyze the magnitude of traffic flow and congestion, after analysis, if judge have blocking to occur, analysis result is passed back centring system 10, and change the length of traffic lights 17, carry out local Information issued by Dynamic Announce board on wireless short-distance information delivery apparatus 15, road 16 simultaneously, centring system 10 then issues this block information by information subsystem 18 wide area, to control the magnitude of traffic flow and to dredge; Dynamic Announce board 16 on wireless short-distance information delivery apparatus 15 and road: exchange information with centring system 10 and adjacent roadside controller for detection 12, will dynamically send and display after this information analysis, to carry out positive guide to wagon flow; Information subsystem 18: be connected with centring system 10, by number of ways to driver's specific aim broadcasting traffic information.

The roadside controller for detection that described roadside controller for detection 12 is adjacent is connected, the roadside controller for detection 22,32 and 42 being positioned at roadside controller for detection 12 downstream such as shown in Fig. 5, described roadside controller for detection 22 is connected with Dynamic Announce board 26 and wireless short-distance information delivery apparatus 25 on traffic lights 27, road, described roadside controller for detection 32 is connected with traffic lights 37, and described roadside controller for detection 42 is connected with Dynamic Announce board 46 and wireless short-distance information delivery apparatus 45 on traffic lights 47, road.

Continue with reference to figure 5.On described centring system 10, roadside detector 14, roadside controller for detection 12, wireless short-distance information delivery apparatus 15, road, Dynamic Announce board 16 can be connected by city municipal administration net or wireless network with information subsystem 18, the information of any like this unit all can gather and is delivered to centring system 10, also can fix a point to be delivered to other relevant unit.

Continue with reference to figure 5.Described roadside detector 14 and roadside controller for detection 12 are by a kind of speed of a motor vehicle to road traffic, vehicle flowrate, the vehicle flowrate history allocation proportion at least following methods, carried out comprehensive survey by the feature such as identification, vehicle acceleration and deceleration of vehicle and comprehensively analyzed, these methods include but not limited to: ground induction coil, graphical analysis, noise distribution, RFID read-write, infrared acquisition and radar detection etc.Described roadside detector 14 and roadside controller for detection 12 use rfid interrogator and camera device to carry out traffic when detecting at the same time, the electronic tag that operating capture vehicle and the reading simultaneously of camera device and rfid interrogator is attached on vehicle, judge that whether vehicle is without RFID label tag by reading situation to vehicle location and RFID, and extract vehicle characteristics and take pictures, instantaneous velocity is calculated to the time interval that the vehicle without RFID label tag shoots with video-corder the visual field by turnover, by identifying how many calculating vehicle flowrates of vehicle; To the vehicle that RFID label tag is housed, roadside detector 14 and roadside controller for detection 12 use rfid interrogator to identify vehicle, now, roadside detector 14 and roadside controller for detection 12 calculate the instantaneous velocity of vehicle, by the number calculating vehicle flowrate of RFID label tag different in the unit of account time by the number of times repeating to read within equal time through the RFID label tag of vehicle.

Refer again to Fig. 5.On described road Dynamic Announce board 16 can receive local roadside controller for detection 12, by centring system specified associations roadside controller for detection 12 and the instruction of centring system 10, and show different multidate informations by autoanalysis.On the road that busy and relevant crossing is arranged, Dynamic Announce board 16 dynamically can be drawn out the flow motor on road surface and the road surface of blocking occurs and provides other path selectable.

Again with reference to figure 5.Transport information can be propagated to driver and motroist by the rfid system of broadcast, roadside detection system, crossing detection system and wireless short-distance information delivery apparatus by described information subsystem 18 targetedly.Described information subsystem 18 can also realize transport information positive guide by electronic navigator in SMS or car.Vehicle on section near traffic hazard occurs, and in its car, navigating instrument all can receive relevant information, guides driver to take a devious route.

Continue with reference to figure 5.And the roadside detector 14 of there is any discrepancy relation adjacent with self is associated by described roadside controller for detection 12, its result of detection can be passed to the other side mutually by the roadside controller for detection 12,22,32 and 42 of such upstream and downstream, thus making roadside, downstream detector 14 calculate the ratio that vehicle between two roadside controller for detections travels average velocity, upstream flowrate flows into this direction, upstream detector then can be caught from downstream sensors 22,32 or 42 data come and calculate assignment of traffic and jam situation.The roadside controller for detection 12 of upstream can calculate the situation in the vehicle shunting each section to downstream by each section, this upstream by the data that the roadside controller for detection 22,32 or 42 in the data that oneself detect and downstream transmits, and the average velocity of each shunting, the relation of Negotiation speed and flow can judge the jam situation in each section to downstream, each section, this upstream.

Continue with reference to figure 5.When roadside, described downstream controller for detection 22,32 or 42 judge section, downstream occur block up reach predetermined level time, then begin through and shorten the wagon flow that the green time of letting pass to congested link direction reduces to put into this direction, it is that this place is to the function of direction historical traffic ratio with the order of severity of blocking up detected that block up that green light shortens the time.And, when described roadside controller for detection 12 finds to block up, also can pass this information back centring system 10, and give information transmission the roadside controller for detection that is connected with it simultaneously and give out information by being attached thereto Dynamic Announce board 16 and short-range wireless transmission device 20 on the road that connects.Described roadside controller for detection 12, generally, can reach top efficiency according to the traffic lights length of time and control law dynamic adjustments crossroad to make vehicle block by nothing or to make crossing pass through.Once the current limliting owing to blocking up in a certain direction, then because current limliting can cause this section, upstream, place that fluctuations in discharge occurs, as limit flow deteriorates into the flow being less than actual vehicle, then can get congestion in these sections, thus its roadside, downstream controller for detection judgement downstream road section blocking can be caused over time and carry out second level current limliting, form third and fourth grade of current limliting by that analogy.Described roadside controller for detection 12 strategically can be placed in crossing, each section, although do not put at all crossings, by calculating average velocity and the assignment of traffic that can obtain each section.

With reference to figure 6.Described centring system 10 forms by with lower module: safety communication module 102: carry out certification to all unit or platform that access centring system, and specify each intercell communication relation and communication key; Information collection module 104: the transport information mainly beamed back each unit of connecting system is carried out collection and stored; Traffic analysis engine 106: analyze the transport information of collecting, emulates selecting the control method carried out and optimizes.According to passing controling parameters or control agent under optimum traffic control algorithm or pattern to Dynamic Announce board and information subsystem on roadside detector, roadside controller for detection, road; System management module 108: mainly monitor and managment is carried out to the operation of whole system.

With reference to figure 7.Described roadside controller for detection 12 is controlled by traffic light controller 19 pairs of traffic lights.

With reference to figure 8.Described roadside controller for detection 12 and roadside detector 14 arrange three at each crossing, or on a roadside controller for detection 12 with roadside detector 14, arrange three pop one's head in, these three detector/probes are used for monitoring wagon flow, the wagon flow of left lateral and the wagon flow of right lateral of keeping straight on respectively, the parameter of main collection has car density D, vehicle flowrate F, bicycle speed S, bicycle residence time T1, range of driving time T2, two workshop interval T3, reads distance L, reads time T4, car number M, and preset time T 5.

Roadside controller for detection 12 and roadside detector 14 are not limited to RFID detector, can also comprise image processor, ground induction coil etc., like this, to the vehicle having RFID, with RFID, to the vehicle without RFID, with image processor or ground induction coil.The mode of traffic probe is: mode a), the number without RFID vehicle that all quantity+video cameras not repeating car plate read within a period of time observe; Mode b), ground induction coil can be used to detect.In addition, if same car is detected on different tracks, then defining the more track of its occurrence number is its track, place.

Roadside controller for detection 12 and roadside detector 14, the vehicle fleet size through crossing in record certain hour, i.e. vehicle flowrate F, and by the vehicle flowrate F in this period and the default vehicle flowrate F in this period prelatively, if F is relevant with track situation much smaller than Fp, Fp and road, speed limit, general bicycle road is 30/point, then this roadside controller for detection 12 judges this section generation traffic jam, and this information is uploaded to connected centring system 10.

Simultaneously the flow F that will record of roadside controller for detection 12, comprises the vehicle flowrate F of left lateral l, right lateral vehicle flowrate F r, and the vehicle flowrate F kept straight on sbe delivered in connected roadside controller for detection 22,32 and 42.

If road traffic is in forming process of blocking up, then the outflow flow in the section residing for known roadside controller for detection 12 is the F in this section l, F ror F s.Because the statistics according to each crossing can be known, flow F and left flow F lwith right flow F rthere is certain proportionate relationship, in this application, define this proportionate relationship for " history allocation proportion ":

And F l=F* left lateral history allocation proportion, F r=F* right lateral history allocation proportion,

F=F l+ F r+ F s, therefore,

According to vehicle flowrate F and the history allocation proportion of roadside controller for detection statistics, the outflow flow in this section can be known.Basis again

Known, when the outflow flow in the section residing for roadside controller for detection 12 is limited by centring system 10, according to outflow flow saturation degree:

With next node enter the coefficient that blocks up:

Known, by the length in time of adjustment left-hand rotation green light, the time of right-hand rotation green light, the time of craspedodrome green light and each traffic lights cycle, aforesaid equation (a) two ends can be made equal, thus the time that each traffic lights that can control roadside controller for detection 22,32 and 42 are bright.

Equally, if roadside controller for detection 22,32 and 42 is positioned in updrift side, road traffic is in evacuation process, then the inflow flow of known primary controller 12 must be made up of FL, FR or FS of roadside detector 22,32 and 42.The brightness Time Calculation of concrete traffic lights and aforementioned process similar, the personnel of art technology can understand completely, do not repeat them here.

Fig. 9 shows an example.Assuming that Dec 1,15:02 divided in the generation traffic hazard of A place, this section is detected by roadside detector F11 and F21, under normal circumstances, equipment vehicle through F11 in 3 minutes has 70, after two minutes, has 15-20 to be detected by equipment F21, but now, only have 1 car to be detected by equipment F2, now can judge that traffic jam occurs section F1-F2, system centre shows this position at once unusual condition.

Speed and flow should be had by each section and real speed and comparing of flow can determine traffic jam section fast.

It should be noted that, all there is traffic hazard as prerequisite in above-described embodiment, but because the reason of traffic jam also may be that somewhere vehicle flowrate is excessive, Vehicle Speed is slow, and the deficiency of time of green light is once walked clearly to make the vehicle of heap using somewhere.In such cases, system needs to detect the speed of a motor vehicle.According to V=S/T, the speed of the vehicle that will measure can be obtained.If the average speed value recorded is much smaller than ratings, then represent that this point blocks.

In addition, in fact described centring system 10 connects multiple controller for detection, now, the vehicle fleet size through crossing in controller for detection record certain hour, i.e. vehicle flowrate F, and by the vehicle flowrate F in this period and the default vehicle flowrate F in this period prelatively.The information that itself can obtain by this controller for detection F21 and the information after processing, as traffic congestion information, be uploaded to two stage detection controller F11, F12, F13 and centring system, centring system shows this position at once unusual condition.

In addition, only mention that roadside controller for detection and roadside detector can measure vehicle flowrate, the speed of a motor vehicle above, but in fact, these detectors can also be set to calculate a lot of parameter.As for the three unities, its position or GPS location can be measured, (pass in and out flow design value with other node relation; Flow distribution), flow, and traffic lights control ratio; For a section, its length, flow, the speed of a motor vehicle, section car amount and standard top speed can be measured; For each crossing, instantaneous velocity, flow and all license plate numbers passed through can be detected.For detector, all crossings are not needed all to install yet, as long as crossing parameter can be known according to respective formula, such as to Figure 10, because i1+i2+i5+i8=i3+i4+i6+i7, as long as so measure 7 amounts in 8, just can know that remaining is measured.

System provided by the invention not only can be applied to traffic jam rapid reaction aspect, and it also can be applied to other aspect, as the crossroad collision prevention function of traffic safety aspect.With reference to figure 11a and Figure 11 b, two secondary figure all show the traffic of crossroad, and in figure, A, B, C, D are traffic lights display device, and E is RFID detecting device, apart from 200 meters, crossing.With reference to figure 11a, when E equipment Inspection is passed through to there being vehicle with the speed being greater than 80km/h, and now the traffic lights of A, C show red light, when the traffic lights of B, D are shown as green light, E equipment controls the display adjusting A, B, C, D traffic lights immediately, that is: the display of the traffic lights of B, D is adjusted to orange or red.Because not necessarily can stop completely in 200 meters (namely E equipment is from distances at crossing) with the speed of 80km/h, if do not stopped, then there is vehicle from B, D point process, then traffic hazard may occur.After installing RFID device, the traffic lights of B, D point are adjusted to orange or red, and with the form speed of the BD section direction vehicle that slows down, avoid unpredictable traffic hazard to occur, as shown in figure lib, two cars can not bump against.

To overspeed of vehicle problem: the interval time of this automobile that the present invention repeatedly can be read by the equipment on road surface, judge whether automobile exceeds the speed limit; If this automobile exceeds the speed limit, then automobilist can receive the short message prompt that system sends to him, and automatically carries out exceeding the speed limit on the net withholing to this user by online system, notifies that this user is to site determining.If in regular hour section, remain overspeed condition, law enforcement center system can notify road surface traffic police, relevant information is sent to the handheld device of road surface traffic police, and traffic police tackles this automobile.To robber's board car detection problem: whether road surface equipment reads the RFID label tag of each automobile, verifies it, be fake license plate vehicle.If fake license plate vehicle, the relevant road surface traffic police of centring system notice, is sent to information the handheld device of road surface traffic police; Traffic police tackles in respective stretch.Accident is escaped and detects: centring system can judge how long each automobile is needed by certain section, if again do not read this automobile within the regular hour, just read every a period of time, then check according to the photo of road surface shooting, if be judged as escaping, the then relevant road surface traffic police of centring system notice, information is sent to the handheld device of road surface traffic police, traffic police tackles in respective stretch.

System provided by the invention also not only can be applied to and prevent from blocking up and crossing secure context, and it also can be applied to other aspect, as intelligent transportation---and restriction overlength parking scheme, major function is for reducing or stopping arbitrarily to stop phenomenon.With reference to figure 12a and 12b, two figure are all shown as a traffic section, and in figure, A, B, C, D are RFID Vehicle Detection equipment display device, and in diagram, vehicle license plate is all equipped with RFID chip.With reference to figure 12a, in this traffic section, detect that three cars through C checkout equipment, but will spend the time of normal traveling through RFID transit equipment, as Figure 12 b, C equipment does not still detect corresponding three cars, or one or two only detected.In such cases, C equipment will send information to this road section traffic volume center, point out this section traffic police to go to check reason.

For another example HAZMAT vehicle and special vehicle supervision, overload of vehicle and leakage, vehicle condition, the quick toll collection lanes in urban district, according to vehicle registration, type of vehicle and vehicle enter the urban district time, and metropolitan district traffic saturation degree and automatically regulating is charged into the urban vehicle automatic dynamic of the rate of charge of city vehicle, road and bridge freely flow charge, Public Parking non-parking charge and position guiding etc.

Also can be used for traffic administration platform, as vehicle driving against traffic regulations travels detection, extraordinary path-chromatic number.Also can be used for judging whether overload: judge whether the vehicle on road surface overloads on volume by camera, judge whether vehicle overloads in weight by laser; Roadside equipment can upload to centring system these information, carries out Treatment Analysis; The relevant road surface traffic police of centring system notice, is sent to information the handheld device of road surface traffic police; Traffic police carries out intercept process in respective stretch.Also can be used for supervising fatigue driving: at expressway entrance and exit record teamster driving time, exceed legal continuous driving time, just there will be warning and commander police enforces the law to it at central control system, thus prevent fatigue driving, effectively ensure that the safety of people's lives and properties.

To fine online law enforcement process problem, because any illegal activities that driver sends on road surface, all can form corresponding electronics ticket in systems in which, driver can receive corresponding SMS Tip.Confirmation fine is carried out to this website.If feel wrong, can go to propose this situation to relevant departments.By on the Bank Account Number that electronic license plate is linked up with corresponding stroke get, the vehicle realized entering urban district carries out non-parking charge.To the compulsory insurance for traffic accident of motor-drivenvehicle of vehicle, environmental protection, secure context, due to any automobile on road surface, as long as roadside equipment reads this automobile, capital is sent to centring system data, centring system can check the legitimacy of this automobile, if not legal, SMS notification can be received equally, treatment scheme of enforcing the law on the net.

For phenomenons such as at present some deck crimes are very serious, the present invention replaces traditional used car board according to existing vehicle registration information and license plate number distribution RFID electronics car car plate, and this car plate is based on passive long distance aluminum matter RFID car plate.There is the important vehicle of particular/special requirement can provide the RFID car plate of other forms (active or have sensing device) to some; Read write line is set at each large slip-road, strategic road, passing vehicle is read at a distance; By being connected with the license plate number management system of traffic department, realizing accurate management and the law enforcement fast automatically of vehicle, thoroughly stopping the criminal offence of administrative vulnerability and his license plate of personation.Fierce as some driver character, the Process-centric that some law enfrocement official enforces the law at the scene has phenomenons such as fearing, by the bank account of electronic license plate and car owner is linked up with, high speed roadside and important urban pavement arrange read write line, all read write lines are connected by the license plate number system of wired or wireless network and traffic department, driver's register system, automatic detection record is carried out to the vehicle violated the traffic regulations in the process of moving, by the direct information data processing centre (DPC) read, and process according to treatment scheme.This system can also be connected with local traffic police's system, strengthens law enforcement.

Certainly, above is only embody rule example of the present invention, does not constitute any limitation protection scope of the present invention.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.

Claims (18)

1. a self-adaptation urban traffic blocking quick-reaction system, comprising:
Centring system: the information that the roadside detector be connected with it, roadside controller for detection transmission are returned is processed, result is passed back roadside detector, roadside controller for detection after analysis, Dynamic Announce board on road, wireless short-distance information delivery apparatus and information subsystem, to regulate the magnitude of traffic flow and distribution thereof;
Roadside detector: utilize integrated sensor cable device to detect road traffic state and result of detection is sent back to centring system and adjacent detector and controller for detection and carry out message exchange;
Roadside controller for detection: except possessing the function of described roadside detector, can also analyze the magnitude of traffic flow and congestion, and control traffic lights length, wireless short-distance information delivery apparatus and dynamic information tag, to control the magnitude of traffic flow and to dredge;
Wireless short-distance information delivery apparatus: exchange information with centring system and adjacent roadside controller for detection, by the onboard wireless receiving trap that dynamic transmission after this information analysis is given in its transmitting boundary, to carry out positive guide to wagon flow;
Dynamic Announce board on road: exchange information with centring system and adjacent roadside controller for detection, by Dynamic Announce after this information analysis, to carry out positive guide to wagon flow; And
Information subsystem: be connected with centring system, by number of ways to driver's specific aim broadcasting traffic information;
Wherein, described centring system forms by with lower module:
Safety communication module: certification is carried out to all unit or platform that access centring system, and specifies each intercell communication relation and communication key;
Information collection module: the transport information mainly beamed back each unit of connecting system is carried out collection and stored;
Traffic analysis engine: the transport information of collecting is analyzed, and to selecting the control method carried out emulate and optimize, according to passing controling parameters or control agent under optimum traffic control algorithm or pattern to Dynamic Announce board and information subsystem on roadside detector, roadside controller for detection, wireless short-distance information delivery apparatus, road; And
System management module: mainly monitor and managment is carried out to the operation of whole system.
2. self-adaptation urban traffic blocking quick-reaction system according to claim 1, it is characterized in that, on described centring system, roadside detector, roadside controller for detection, wireless short-distance information delivery apparatus, road, Dynamic Announce board is connected by city municipal administration net or wireless network with information subsystem, can gather to make the information of any unit and be delivered to centring system, also can fix a point to be delivered to other relevant unit.
3. self-adaptation urban traffic blocking quick-reaction system according to claim 1, it is characterized in that, described roadside detector and roadside controller for detection are by a kind of speed of a motor vehicle to road traffic, vehicle flowrate, the vehicle flowrate history allocation proportion at least following methods, carried out comprehensive survey by the identification of vehicle, vehicle acceleration and deceleration feature and comprehensively analyzed, these methods include but not limited to: ground induction coil, graphical analysis, noise distribution, RFID read-write, infrared acquisition and radar detection.
4. self-adaptation urban traffic blocking quick-reaction system according to claim 3, is characterized in that, described roadside controller for detection is also connected with traffic light controller simultaneously, to control traffic lights.
5. self-adaptation urban traffic blocking quick-reaction system according to claim 1, it is characterized in that, on described road Dynamic Announce board receive local roadside controller for detection, by centring system specified associations roadside controller for detection and the instruction of centring system, and show different multidate informations by autoanalysis.
6. self-adaptation urban traffic blocking quick-reaction system according to claim 5, is characterized in that, on described road, Dynamic Announce board is directly connected to the information subsystem of various places, with direct dynamic display screen information being passed to information subsystem.
7. self-adaptation urban traffic blocking quick-reaction system according to claim 1, it is characterized in that, on described road wireless short-distance information delivery apparatus receive local roadside controller for detection, by centring system specified associations roadside controller for detection and the instruction of centring system, and issue different multidate informations by autoanalysis.
8. self-adaptation urban traffic blocking quick-reaction system according to claim 1, it is characterized in that, transport information is propagated to driver and motroist by the rfid system of broadcast, mobile phone, wireless short-distance information delivery apparatus, roadside detector and roadside controller for detection by described information subsystem targetedly.
9. according to the self-adaptation urban traffic blocking quick-reaction system in claim 1,3 or 4 described in any one, it is characterized in that, when the vehicle that road travels is equipped with RFID label tag, roadside detector and roadside controller for detection use rfid interrogator to identify vehicle.
10. self-adaptation urban traffic blocking quick-reaction system according to claim 9, it is characterized in that, described roadside detector and roadside controller for detection, by repeating to read the instantaneous velocity calculating vehicle through the number of times of the RFID label tag of vehicle within equal time, calculate vehicle flowrate by the number of RFID label tag different in the unit of account time.
11. according to claim 1, self-adaptation urban traffic blocking quick-reaction system in 3 or 4 described in any one, it is characterized in that, described roadside detector and roadside controller for detection, when using rfid interrogator and camera device to carry out traffic detection at the same time, after camera device detects vehicle, start to read the electronic tag be attached on vehicle, judge that whether vehicle is without RFID label tag by reading situation to vehicle location and RFID, and extract vehicle characteristics and take pictures, instantaneous velocity is calculated to the time interval that the vehicle without RFID label tag shoots with video-corder the visual field by turnover, by identifying how many calculating vehicle flowrates of vehicle.
12. according to claim 1, self-adaptation urban traffic blocking quick-reaction system in 3 or 4 described in any one, it is characterized in that, the geographic position of described centring system residing for described roadside detector and roadside controller for detection and function, and the roadside detector of there is any discrepancy relation and roadside controller for detection adjacent with this roadside controller for detection with this roadside detector are associated, its result of detection can be passed to the other side mutually by the roadside detector of such upstream and downstream and roadside controller for detection, thus the vehicle making roadside, downstream detector and roadside controller for detection calculate between two roadside detectors or roadside controller for detection travels average velocity, and upstream flowrate flows into the ratio of downstream direction, upstream detector is then caught from downstream sensors the data come and is calculated assignment of traffic and jam situation.
13. self-adaptation urban traffic blocking quick-reaction systems according to claim 12, it is characterized in that, the roadside detector of upstream and roadside controller for detection are calculated by the situation in vehicle shunting each section to downstream in each section, this upstream and the average velocity respectively shunted by the data that the roadside detector in the data that oneself detect and downstream and roadside controller for detection transmit, and the relation of Negotiation speed and flow judges the jam situation in each section to downstream, each section, this upstream.
14. self-adaptation urban traffic blocking quick-reaction systems according to claim 13, it is characterized in that, when described roadside detector and roadside controller for detection blocking up of judging that section, downstream occurs reaches predetermined level, then begin through the wagon flow shortening and reduce to put into this direction to congested link direction clearance green light, green light shortens the function of the order of severity of blocking up that the time is this direction historical traffic ratio and detects.
15. self-adaptation urban traffic blocking quick-reaction systems according to claim 13, it is characterized in that, when described roadside detector and roadside controller for detection find to block up, can this information be passed back centring system, and information transmission to be given on the local road that is connected with it Dynamic Announce board on wireless short-distance information delivery apparatus and road simultaneously.
16. self-adaptation urban traffic blocking quick-reaction systems according to claim 15, it is characterized in that, described roadside detector and roadside controller for detection, according to the traffic lights length of time and control law dynamic adjustments crossroad, block by nothing to make vehicle or make that crossing is current reaches top efficiency.
17. self-adaptation urban traffic blocking quick-reaction systems according to claim 13, it is characterized in that, once the current limliting owing to blocking up in a certain direction, then because current limliting can cause the party upstream fluctuations in discharge to occur section, actual vehicle flowrate is less than as limit flow deteriorates into, then can get congestion in these sections, thus its roadside, upstream controller for detection judgement downstream road section blocking can be caused over time and carry out second level current limliting, form third and fourth grade of current limliting by that analogy.
18. self-adaptation urban traffic blocking quick-reaction systems according to claim 1, it is characterized in that, described roadside detector and roadside controller for detection, be only placed in part way crossing, as long as by calculating average velocity and the assignment of traffic that can obtain each section.
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