CN104978865A - Distributed vehicle and road side facility mixed traffic information system - Google Patents
Distributed vehicle and road side facility mixed traffic information system Download PDFInfo
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- CN104978865A CN104978865A CN201410134460.3A CN201410134460A CN104978865A CN 104978865 A CN104978865 A CN 104978865A CN 201410134460 A CN201410134460 A CN 201410134460A CN 104978865 A CN104978865 A CN 104978865A
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Abstract
The invention relates to a novel traffic information system and particularly relates to a distributed traffic information acquisition and processing system which is based on vehicle equipment and road side facilities and which is integrated through short range wireless communication. A vehicle with corresponding equipment stores passing paths and related traffic information, and when entering a range of short range wireless communication with the road side facilities, the vehicle establishes communication connection. Position and mutual communication time information of a road side facility can be labeled by the road side facility and can be signed and sent to a travelling vehicle as authentication, and authorized data information can be verified and confirmed by other road side facilities. By means of continuous authentication by the road side facilities, the vehicle can be tracked in a traffic network. The system provided by the invention is distributed, and the vehicle has own vehicle calculation and storage functions. A driver can control corresponding equipment, and delete related information in order to protect privacy. The novel traffic information system can widely apply generated and spread information to aspects of traffic management, control and plan, and the like.
Description
Art
The present invention relates to a kind of novel traffic infosystem, particularly relate to a kind of based on mobile unit and trackside facility, by the distributing traffic information acquisition processing system that short-distance wireless communication is integrated.
Background technology
Almost we have to experiencing traffic congestion all the time.Sometimes, blocking up can by better utilizing the traffic capacity of transportation network and alleviating.Such as, when part way to become because too high current demand or the traffic capacity temporarily reduce block up time, segment path user can change its driving path, makes the utilization of transportation network more balanced, thus reaches the optimum of whole system.Temporarily can also improve the traffic capacity in high demand section, such as, when pre-in respect of higher demand time, by distributing the more green light period to specific section and direction.But coming in previous example according to what of these decision-makings, road user needs the traffic knowing its driving path that may change; In a rear example, traffic control system needs to select suitable traffic control scheme and parameter.But whichsoever example and any situation, all accurately must grasp real-time traffic condition and (prediction) future traffic condition.
Traditional traffic detection system is all a measurement.These point sensors can only provide point variable, such as, put the cross section magnitude of traffic flow, some cross section speed etc.But, with the more senior traffic application that ATIS (senior traffic information system), ATMS (senior traffic control system), RGS (traffic navigation system) are representative, need the variable centered by driving vehicle/driver for supporting.Traditionally, these variablees can be estimated to get by point variable usually, but are difficult to ensure high-quality.If the variable centered by driving vehicle/driver directly can be measured and obtain, the confidence level of these variablees can improve greatly, and then the performance of whole system is also promoted.
Distributing traffic information acquisition processing system is a kind of up-and-coming system directly can measuring the variable obtained centered by driving vehicle/driver.Its target is collected and routing table that in storage system, each driving vehicle/driver is complete, and then road network real-time traffic condition can be directly measured, and future traffic condition can by Accurate Prediction.
Summary of the invention
What solve makes technical matters:
Compared to the traffic information system that traditional central authorities focus on, the advantage of distributed traffic information system is obvious, and namely not needing disposable great amount of investment just can run generation traffic relevant information in central information processing centring system is customer service.Under market condition, along with the increase gradually of user, system can progressively develop from small to large, relatively little for investor's risk.Because transport information need not focus on by processing enter is unified, the redundance of distributed system is better, system can not because of the disappearance of equipment component or damage cisco unity malfunction, and distributed system comparatively easily realizes for personalized information handling needs.
Although the advantage of distributing traffic information system is obvious, all difficulties of technology and market may be faced with in its development starting stage.It is important, in the stage of system also imperfection maturation, with the private car of mobile unit owing to producing information as the sensor in network, exchange information by the short-distance wireless communication of vehicle between drive test facility, the leakage of personal information and privacy may be caused.The system of our invention will solve emphatically above-mentioned distributed system possibility Problems existing technically, and strengthens the existing advantage of distributed system.
Technical scheme:
Core content of the present invention is: by the routing information that each driving vehicle in distributed vehicle-mounted data library storage transportation network is complete, and by the radio communication of short distance with auxiliary trackside facility, form the vehicle-mounted traffic information system system be integrated with trackside facility of mixing.
In such a system, each (with relevant device) driving vehicle in transportation network store its by way of path and relevant transport information.When vehicle enter into can carry out the scope of short-distance wireless communication with trackside facility time, between set up liaison.Because trackside facility is fixing and known, driving vehicle probably will understand oneself position in transportation network.The position of this trackside facility and set up mutual call duration time dot information, will be marked by trackside facility and sign and issue back driving vehicle as certification, this data message through certification will by the checking of other trackside facility and confirmation.By the position and the time point data message that receive certification from the trackside facility of diverse location that continue, (with relevant device) driving vehicle will be followed the trail of in transportation network, and as the part of safeguards system safety.
This infosystem is distribution, because each (with relevant device) driving vehicle will have oneself vehicle computing and memory function.The traceable driving path of himself will be stored in the vehicle-mounted data storehouse of himself, and this information also can be supplied to trackside facility.This information will be continual, because the run routing information of (with relevant device) vehicle will produce and safeguard every day, and extracts relevant information when needed.Be similar to the plug-in unit of Internet-browser, it is arranged in local computer, and external website read-write that can be viewed, can be deleted by local but can not be rewritten by local.Driver can control relevant device, and is protection privacy, deletes the relevant information stored, but can not change the information content wherein.Further, false routing information can not be transfused in this distributed system to be propagated, because trackside facility is only approved, sent and marked and the information signed and issued by trackside facility system.The information that the traffic information system that this distributed locomotive mixes with trackside facility produces and propagates can be widely used in traffic administration, traffic control, traffic programme etc. aspect.
Beneficial effect:
Distributed locomotive of the present invention and trackside facility mixed traffic infosystem have many unique functional characteristics and advantage.After this system and other transport information, traffic administration, traffic control, the traffic programme system integration are integrated, can be supplied to for each (with relevant device) driving vehicle/driver personalized information, thus the performance of whole system is more excellent.Its beneficiary comprises: each is driving vehicle/driver, public (traffic administration, planning, operation) department, System Service Provider independently.
For each independently driving vehicle/driver: the traffic information system using distributed locomotive to mix with trackside facility and trackside facility set up wireless communication link exchange information time, based on the analysis and prediction on the driving path in the past recorded it and pattern, the limited relevant information for its demands of individuals can be obtained.In traditional traffic information system, be similar to the information that broadcast mode transmits, cause too much irrelevant information, not only useless but also information disperses driver attention too much, is unfavorable for safe driving.After integrated with traffic control system, when abundant (with relevant device) driving vehicle/driver arrives intersection with identical pattern, the corresponding green light period can be extended, thus reduces delay and the stand-by period of the traffic information system user that distributed locomotive mixes with trackside facility.
For public (traffic administration, planning, operation) department: the traffic information system that distributed locomotive mixes with trackside facility directly samples from the driving vehicle system the traffic rule, pattern and the real-time transport information that obtain history, and then estimate transport need more accurately, the function of traffic control system can be promoted.With this infosystem for source, the estimation for the traffic variations dynamically, based on path provides necessary data to traffic control system, thus achieves better traffic control.If adopt (non-user, non-government vehicle supervision department) Third-Party Model operation, the construction of the traffic information system that distributed locomotive mixes with trackside facility needs the investment of government hardly; And different from general public infrastructure, this system completely can by independently commercial undertaking's such as MCI's operation.Based on the advantage of distributed system, do not need the data that central data library storage is a large amount of, the maintenance cost of its traffic data is very low; Equally, system has good dilatation ductility, increases new user and Xin trackside facility needs to modify to existing system framework hardly.
For System Service Provider: independently commercial undertaking must set up the traffic information system that a successful business model goes operation distributed locomotive to mix with trackside facility, finds and determines the potential source of profit, at least from following two aspects.The first, the data (such as: road trip time, crossing smog etc.) of integrated transport need and transport information are also sold to traffic programme, management, control gear.These data are widely used, but should not obtain from traditional method.The second, the registered user to infosystem collects certain service fee.Many investigation show that user is willing to that meaning the mobile unit installed in its car pays, when particularly system can save traffic time.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is system network architecture of the present invention and traffic route schematic diagram.
Fig. 2 is internal system communication scheme of the present invention.
Embodiment
The traffic information system that our distributed locomotive mixes with trackside facility can be illustrated at following word and accompanying drawing.In this instance, (with relevant device) driving vehicle A continuous three days carries out interactive short-distance wireless communication with trackside facility.First day, trackside facility cannot read its complete routing information from driving vehicle A; But under the help of trackside facility, the fullpath of vehicle A in transportation network and the series of time-points through each crossing have write in the vehicle-mounted data storehouse of vehicle A all, and trackside facility can read the routing information that vehicle A travelled the same day.Second day, when vehicle A drives through crossing in transportation network and trackside facility sets up short-distance wireless communication, trackside facility can read vehicle A and be stored in the fullpath of the first day in vehicle-mounted data storehouse and the path travelled for second day and relevant information; And simple prediction is made to non-driving path on the same day of vehicle A.But the same day, vehicle A took the path different from first day.Meanwhile, under the help of trackside facility, the vehicle A fullpath of second day and the series of time-points through each crossing have write in the vehicle-mounted data storehouse of vehicle A all.3rd day, vehicle A took the identical path with first day.When leaving transportation network, two different driving paths and three days different series of time-points in its vehicle-mounted data storehouse, are stored.Every day afterwards, the driving path in the vehicle-mounted data storehouse of vehicle A and series of time-points all can upgrade, to its path make prediction and more and more accurate due to increasing data supporting.
Claims (4)
1. distributed locomotive and trackside facility mixed traffic infosystem, it is characterized in that: by the routing information that each driving vehicle in distributed vehicle-mounted data library storage transportation network is complete, and by the radio communication of short distance with auxiliary trackside facility, form the vehicle-mounted traffic information system system be integrated with trackside facility of mixing.In such a system, each is when in transportation network, (with relevant device) vehicle enters into and can carry out the scope of short-distance wireless communication with trackside facility, between set up liaison.The position of trackside facility and set up mutual call duration time dot information, will be marked by trackside facility and sign and issue back driving vehicle as certification, the data message through certification will by the checking of other trackside facility and confirmation.By the position and the time point data message that are subject to certification from the trackside facility of diverse location that continue, driving vehicle will be followed the trail of in transportation network, and as the part of safeguards system safety.
2. the distributed locomotive according to right 1 and trackside facility mixed traffic infosystem.It is characterized in that: driver can control relevant device, and be protection privacy, delete the relevant information stored, but the information content wherein can not be changed.
3. the distributed locomotive according to right 1 and trackside facility mixed traffic infosystem.It is characterized in that: trackside facility is only approved, send and marked and the information signed and issued by trackside facility system, false routing information can not be transfused in this distributed system to be propagated.
4. the distributed locomotive according to right 1 and trackside facility mixed traffic infosystem.It is characterized in that: for each independently driving vehicle/driver, use the traffic information system that mixes with trackside facility of distributed locomotive and trackside facility set up wireless communication link exchange information time, based on the analysis and prediction on the driving path in the past recorded it and pattern, the limited relevant information for its demands of individuals can be obtained, instead of be similar to the indiscriminate information of broadcast.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410134460.3A CN104978865A (en) | 2014-04-04 | 2014-04-04 | Distributed vehicle and road side facility mixed traffic information system |
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| CN201410134460.3A CN104978865A (en) | 2014-04-04 | 2014-04-04 | Distributed vehicle and road side facility mixed traffic information system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331152A (en) * | 2017-07-13 | 2017-11-07 | 南京航空航天大学 | A kind of road parking toll intersection cross-road passages for pedestrians multi-objects Optimal Selection |
| CN108367708A (en) * | 2015-12-22 | 2018-08-03 | 株式会社小糸制作所 | Vehicular illumination device, vehicle and lighting control system |
-
2014
- 2014-04-04 CN CN201410134460.3A patent/CN104978865A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367708A (en) * | 2015-12-22 | 2018-08-03 | 株式会社小糸制作所 | Vehicular illumination device, vehicle and lighting control system |
| CN107331152A (en) * | 2017-07-13 | 2017-11-07 | 南京航空航天大学 | A kind of road parking toll intersection cross-road passages for pedestrians multi-objects Optimal Selection |
| CN107331152B (en) * | 2017-07-13 | 2020-04-24 | 南京航空航天大学 | Multi-target optimization method for pedestrian crossing facilities at intersection controlled by secondary parking |
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Application publication date: 20151014 |