CN105761514A - System for intelligently controlling vehicle congestion condition at intersection - Google Patents
System for intelligently controlling vehicle congestion condition at intersection Download PDFInfo
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- CN105761514A CN105761514A CN201410790670.8A CN201410790670A CN105761514A CN 105761514 A CN105761514 A CN 105761514A CN 201410790670 A CN201410790670 A CN 201410790670A CN 105761514 A CN105761514 A CN 105761514A
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Abstract
The invention relates to a system for intelligently controlling the vehicle congestion condition at an intersection. The system comprises a traffic signal controller, a video queuing detector, a vehicle detector, an intersection display panel and electronic police equipment. The traffic signal controller is used for controlling the phase jumping at a corresponding intersection according to the length data of a vehicle queue at the intersection, wherein the length data of the vehicle queue is detected and sent by the video queuing detector. The video queuing detector is used for detecting the length data of the vehicle queue at the intersection and sending the length data of the vehicle queue at the corresponding intersection to the traffic signal controller according to detection data. According to the technical scheme of the system for intelligently controlling the vehicle congestion condition at the intersection, the video detection technique, the induction technology and the signal control technique are integrated, and the signal control is adopted as the core of the system. Based on the coordinated operation of various devices, vehicles are effectively prevented from driving into a congested intersection. Meanwhile, the normal traffic of vehicles in other directions is ensured, and the vehicle guiding efficiency is improved. The periodic and cyclic congestion of the intersection is avoided. Therefore, the system is wider in application range.
Description
Technical field
The present invention relates to field of traffic control, particularly relate to intellectual traffic control field, specifically refer to the system of a kind of Based Intelligent Control crossing vehicle congestion situation.
Background technology
Being continuously increased due to urban automobile quantity at present, urban road surfaces extension comparatively difficulty, urban congestion problem becomes the major issue of urban transportation.Owing to city road network is relatively complicated, it is mutually communicated more, crossing close together, in the bigger situation of vehicle flowrate, above the tailback at a crossing is queued up and is likely to spread to next crossing, causes the situation that next crossing blocks, and other vehicle pass-through directions also lead to block, so spread out, cause the vehicle congestion in a region.In conjunction with current Video Analysis Technology, inductive technology and traffic signalization technology, design and a can alleviate and induce the traffic signalization equipment for problems, it is possible to this type of traffic jam issue of transport solution.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, it is provided that a kind of crossing that solves blocks situation, effectively prevent the entrance blocking crossing of vehicle, ensure the system of the Based Intelligent Control crossing vehicle congestion situation of the vehicle normal pass in other directions simultaneously.
To achieve these goals, the system of the Based Intelligent Control crossing vehicle congestion situation of the present invention has following composition:
The system of this Based Intelligent Control crossing vehicle congestion situation, it is mainly characterized by, and described system includes:
Traffic signal control, the phase place of the crossing vehicle queue length Data Control corresponding intersection in order to send according to video queuing detector redirects；
Corresponding crossing vehicle queue length data in order to the queue length according to detection Data Detection corresponding intersection vehicle, and are sent to described traffic signal control by video queuing detector.
Further, described system also includes wagon detector, and described wagon detector is in order to detect the vehicle at this crossing, and obtains corresponding vehicle data.
Further, described video queuing detector includes video detecting unit, and described video detecting unit is in order to gather video frequency vehicle data.
Further, the described queue length according to detection Data Detection crossing vehicle, particularly as follows:
The value of the confidence, vehicle data and the video frequency vehicle data that described video queuing detector is arranged according to system calculate the queue length of corresponding intersection vehicle.
Further, described system also includes crossing display panel, and the display panel used crossing congestion data to send according to described traffic signal control in described crossing show the road conditions at this crossing.
Further, RS232 interface is adopted to carry out data interaction between described traffic signal control and described video queuing detector；RS232 interface is adopted to carry out data interaction between described traffic signal control and described wagon detector；RS485 interface is adopted to carry out corresponding data between traffic signal control and described crossing display panel mutual.
Further, described system also includes electronic police equipment, and the vehicle at this crossing, after receiving the red signal that described traffic signal control sends, is monitored by described electronic police.
Further, described traffic signal control and described electronic police equipment adopt RS232 interface to carry out data interaction.
Have employed the system of Based Intelligent Control crossing vehicle congestion situation in this invention, with traffic signal control for core, adopt video detection technology that outlet vehicle is ranked and detect warning, when blocking occurs at crossing, traffic signalling device controls to carry out Phase-switching and jump to other phase places, vehicle is not allowed to enter blocking direction, crossing, solve crossing and block situation, it is achieved that ensure while effectively inducing a part of vehicle that the vehicle pass-through in other directions is normal, slow down traffic from other aspect；In conjunction with electronic police equipment, driver can be reduced and do not observe traffic rules and regulations and be operated into the phenomenon that intersection causes jam situation to increase the weight of, there is wider application scope simultaneously.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the system of the Based Intelligent Control crossing vehicle congestion situation of the present invention.
Fig. 2 is a specific embodiment of the system of the Based Intelligent Control crossing vehicle congestion situation of the present invention.
Detailed description of the invention
In order to more clearly describe the technology contents of the present invention, conduct further description below in conjunction with specific embodiment.
As it is shown in figure 1, in one embodiment, the system of the Based Intelligent Control crossing vehicle congestion situation of the present invention includes:
Traffic signal control, the phase place at the vehicle queue length Data Control crossing, crossing in order to send according to video queuing detector redirects；
Corresponding crossing vehicle queue length data in order to detect the queue length of crossing vehicle according to video data, and are sent to described traffic signal control by video queuing detector.
In a preferred embodiment, described system also includes wagon detector, and described wagon detector is in order to detect the vehicle at this crossing, and obtains corresponding vehicle data.
In a kind of preferred embodiment, described system also includes crossing display panel, and the display panel used crossing congestion data to send according to described traffic signal control in described crossing show the road conditions at this crossing.
In a kind of preferred embodiment, RS232 interface between described traffic signal control and described video queuing detector, is adopted to carry out data interaction；RS232 interface is adopted to carry out data interaction between described traffic signal control and described wagon detector；RS485 interface is adopted to carry out corresponding data between traffic signal control and described crossing display panel mutual.
In a preferred embodiment, described system also includes electronic police equipment, and the vehicle at this crossing, after receiving the red signal that described traffic signal control sends, is monitored by described electronic police.
In a preferred embodiment, described traffic signal control and described electronic police equipment adopt RS232 interface to carry out data interaction.
The present invention spreads problem mainly for solving the mutual vehicle congestion in urban road crossing.Problem for " blocking up " and " dredging " has discussed a lot of time, owing to China is populous, economy develops rapidly, original designing of city road traffic capacity also just can not meet far away the needs of reality, with this address occurring in that " blocking up " city etc, how to solve or alleviate problems particularly to loom large.Design money for problems can integration of compact induction, electronic police and signal thereof the mode that controls to combine can complete to solve or alleviate problems, spread problem solving current urban congestion, alleviate some traffic problems faced at present.
As in figure 2 it is shown, be the specific embodiment of the present invention, it is further described through in conjunction with Fig. 1 and Fig. 2:
By with traffic signal control for core, adopt video detection technology (i.e. video queuing detector) to detect each crossing queuing situation, and crossing vehicle queue length data are supplied to the traffic signal control one of the data foundation as its strategic decision.According to video queuing detector data, adopt phase place to redirect mode and each phase place in crossing is controlled accordingly, jam alarming information can be sent on upper bit platform and neighbouring traffic signalization equipment thereof simultaneously.
Wherein, vehicle queue length detection mode is specific as follows:
Video queuing detector merges according to the earth magnetism of video detector (i.e. video detecting unit) and surface deployment thereof or the data of coil checker (i.e. wagon detector), data fusion mainly judges car speed and queue length information, adopts Weighted Fusion method.The core concept of weighting fusion estimate algorithm is: estimate to take into account each partial estimation gathering unit, gives each collection unit customization weighter factor according to certain principle, and all of partial estimation of last weighted comprehensive obtains global system and estimates.Computational methods are as follows:
Wherein, Wi parameter adopts expert method to adjust.
Then, according to different the value of the confidence and flow speeds, carry out fusion calculation, measure vehicle queue length.
Track vehicle queue length, traffic state and the wagon flow situation of growth that system detects according to different distance and different types of detector, traffic signal control is designed three preset values, redirect control mutually, this direction of optionally letting pass, alleviate traffic pressure.Wherein, phase place redirect control specific as follows:
Each is divided into high, medium and low three kinds of states by queue length, wagon flow and wagon flow increment rate to adopt three-dimensional icon mode, carries out jumping when three kinds of states are all high and letting pass mutually and extending direction clearance time △ t；When three kinds of modes are all low, shorten this direction clearance time △ t；Other time, according to different assembled state, can increase or reduce direction let pass time △ t, it is achieved phase place redirects coordination control.
If there is multi-direction jam situation, then degradation is processed by traffic signal control, in the direction that blocks up according to minimum green time direction, do not block up direction employing travel direction original setup time, wherein, minimum green time is to combine and carry out, according to the crossing test car data on flows in the setting up procedure of crossing, crossing size, the default passage rate in crossing, the realization that statistical computation draws.
Small-sized ductor (i.e. crossing display panel) can be set at close crossing and graphically show the road conditions at this crossing simultaneously, it is also adopted by small-sized ductor in the crossing that blocks up and carries out traffic guidance prompting, forbid that vehicle drives towards traffic congestion phase place again, meanwhile, phase place of blocking up is carried out and is terminated letting pass or redirecting clearance by traffic signal control, forbid that vehicle is again introduced into the direction that blocks up, let pass as usual in other directions, can reduce and cause crossing vehicle clearance to incur loss through delay owing to the cycle repeats to block up, improve vehicle and dredge efficiency.
In addition, in order to ensure no longer to sail, under vehicle jam situation again, the direction that blocks up accordingly into, electronic police equipment can be installed as punishment and monitoring means (electronic police equipment mainly completes to make a dash across the red light, fall many illegal pedestrians such as tail catches, not by many infringements such as lanes) in all directions, reduce the operation violated the traffic regulations, it is to avoid crossing congestion situation increases the weight of.
Adopt optical fiber to connect between each equipment of the present invention, wherein, native system can carry out communication by Ethernet between traffic signal control and video queuing detector, be substantially carried out crossing vehicle queue length data interaction；RS232 can be adopted between traffic signal control and wagon detector to carry out data interaction, and the main real-time vehicle of being correlated with that sends detects data and relevant statistics thereof；Traffic signal control and electronic police part can adopt RS232 to carry out data interaction, mainly corresponding red signal are sent to electronic police；RS485 mode is adopted to carry out corresponding data alternately between traffic signal control and small-sized information plate,
The core of the present invention is traffic signal control, adopts phase place to redirect mode and each phase place in crossing is combined carry out corresponding control with exporting queuing detector data, can jam alarming information be sent on upper bit platform and neighbouring traffic signalization equipment thereof simultaneously.If there is multi-direction jam situation, then degradation is processed by traffic signal control, and in the direction that blocks up according to minimum green time direction, do not block up direction employing travel direction original setup time.Advantage of the invention is that and be integrated with video detection technology, inductive technology and signal control technology thereof, with signal control for core, by the co-ordination of plurality of devices, alleviate part urban congestion problem.
Have employed the system of Based Intelligent Control crossing vehicle congestion situation in this invention, with traffic signal control for core, adopt video detection technology that outlet vehicle is ranked and detect warning, when blocking occurs at crossing, traffic signalling device controls to carry out Phase-switching and jump to other phase places, vehicle is not allowed to enter blocking direction, crossing, solve crossing and block situation, it is achieved that ensure while effectively inducing a part of vehicle that the vehicle pass-through in other directions is normal, slow down traffic from other aspect；In conjunction with electronic police equipment, driver can be reduced and do not observe traffic rules and regulations and be operated into the phenomenon that intersection causes jam situation to increase the weight of, there is wider application scope simultaneously.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still may be made that various amendment and conversion are without departing from the spirit and scope of the present invention.Therefore, specification and drawings is regarded in an illustrative, rather than a restrictive.
Claims (8)
1. the system of a Based Intelligent Control crossing vehicle congestion situation, it is characterised in that described system includes:
Traffic signal control, the phase place of the crossing vehicle queue length Data Control corresponding intersection in order to send according to video queuing detector redirects；
Corresponding crossing vehicle queue length data in order to the queue length according to detection Data Detection corresponding intersection vehicle, and are sent to described traffic signal control by video queuing detector.
2. the system of Based Intelligent Control crossing according to claim 1 vehicle congestion situation, it is characterised in that described system also includes wagon detector, described wagon detector is in order to detect the vehicle at this crossing, and obtains corresponding vehicle data.
3. the system of Based Intelligent Control crossing according to claim 2 vehicle congestion situation, it is characterised in that described video queuing detector includes video detecting unit, and described video detecting unit is in order to gather video frequency vehicle data.
4. the system of Based Intelligent Control crossing according to claim 3 vehicle congestion situation, it is characterised in that the described queue length according to detection Data Detection crossing vehicle, particularly as follows:
The value of the confidence, vehicle data and the video frequency vehicle data that described video queuing detector is arranged according to system calculate the queue length of corresponding intersection vehicle.
5. the system of Based Intelligent Control crossing according to any one of claim 1 to 4 vehicle congestion situation, it is characterized in that, described system also includes crossing display panel, and the display panel used crossing congestion data to send according to described traffic signal control in described crossing show the road conditions at this crossing.
6. the system of Based Intelligent Control crossing according to claim 5 vehicle congestion situation, it is characterised in that adopt RS232 interface to carry out data interaction between described traffic signal control and described video queuing detector；RS232 interface is adopted to carry out data interaction between described traffic signal control and described wagon detector；RS485 interface is adopted to carry out corresponding data between traffic signal control and described crossing display panel mutual.
7. the system of Based Intelligent Control crossing according to any one of claim 1 to 4 vehicle congestion situation, it is characterized in that, described system also includes electronic police equipment, the vehicle at this crossing, after receiving the red signal that described traffic signal control sends, is monitored by described electronic police.
8. the system of Based Intelligent Control crossing according to claim 7 vehicle congestion situation, it is characterised in that described traffic signal control and described electronic police equipment adopt RS232 interface to carry out data interaction.
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| CN106297328A (en) * | 2016-08-25 | 2017-01-04 | 深圳市元征科技股份有限公司 | A kind of method for controlling traffic signal lights and device |
| CN106652448A (en) * | 2016-12-13 | 2017-05-10 | 山姆帮你（天津）信息科技有限公司 | Road traffic state monitoring system on basis of video processing technologies |
| CN107123272A (en) * | 2017-06-12 | 2017-09-01 | 哈尔滨工业大学 | A kind of driver rushes the decision method of green light behavior |
| CN107516425A (en) * | 2017-08-14 | 2017-12-26 | 苏州荣宝升城市建设有限公司 | A kind of Intelligent road auxiliary control method |
| CN111798680A (en) * | 2020-08-12 | 2020-10-20 | 中国标准化研究院 | Smart city management system |
| CN112735154A (en) * | 2021-01-06 | 2021-04-30 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Intersection bidirectional congestion intelligent induction control system and method |
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| CN107123272A (en) * | 2017-06-12 | 2017-09-01 | 哈尔滨工业大学 | A kind of driver rushes the decision method of green light behavior |
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| CN112735154A (en) * | 2021-01-06 | 2021-04-30 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Intersection bidirectional congestion intelligent induction control system and method |
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