CN103903444A - Method and system for finding out expressway congestion trigger points immediately - Google Patents
Method and system for finding out expressway congestion trigger points immediately Download PDFInfo
- Publication number
- CN103903444A CN103903444A CN201410156568.2A CN201410156568A CN103903444A CN 103903444 A CN103903444 A CN 103903444A CN 201410156568 A CN201410156568 A CN 201410156568A CN 103903444 A CN103903444 A CN 103903444A
- Authority
- CN
- China
- Prior art keywords
- speed
- point
- blocks
- street
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Traffic Control Systems (AREA)
- Image Analysis (AREA)
Abstract
The invention provides a method and system for finding out expressway congestion trigger points immediately. A video tracking technology is used for conducting continuous tracking on vehicles running on an expressway; through the video tracking technology, driving states of the vehicles can be obtained more accurately, and whole-course continuous tracking of the vehicles can be achieved, and detection is not only conducted on one cross section. In addition, after the video continuous tracking technology is used, the positions of the congestion trigger points can be obtained accurately by only comparing vehicle speeds at different positions, and therefore better real-time performance is achieved. Furthermore, due to the fact that whole-course continuous tracking can be conducted on the vehicles, the congestion trigger points can be determined in real time without the need of upstream and downstream relevance, and therefore the method and system for finding out expressway congestion trigger points immediately have higher efficiency.
Description
Technical field
The present invention relates to intelligent transport technology field, specifically a kind of instant discovery through street blocks up and causes the method and system of point.
Background technology
Along with the continuous expansion of city size, transport need sharply increases, and big city peak hour traffic is blocked up and become normality, brings very big inconvenience to people's trip, has had a strong impact on the fast development of urban economy.For the transport solution problem of blocking up, governments at all levels drop into substantial contribution and take many kinds of measures to alleviate the traffic congestion causing rush hour, but effect is not remarkable, it is by that its main cause can not find that current road traffic blocks up accurately for which point initiation, only find initiation point, just can find and cause the reason of blocking up, adopting an effective measure of so just can shooting the arrow at the target solves the problem of blocking up.
For this reason, the patent that main inventor submitted to and authorizes to State Intellectual Property Office on November 17th, 2009, publication number is: CN101719314A, denomination of invention is " area traffic jamming triggering point record analysis method ".Cardinal principle is: by being arranged on the analysis processing computer of control center, traffic congestion Rapid Alarm device and the communication line being arranged on city road network forms.A default tested measuring point upstream and downstream relational database in analysis processing computer, operation has the point analysis of initiation program.Often there is traffic congestion region on a large scale, in intersection, ring road mouth or the junction of two streams of through street or loop, or according to actual needs in through street or loop every a segment distance, tested measuring point is set respectively, the Rapid Alarm device that blocks up is installed.After certain tested measuring point gets congestion, what this point was installed block up, and Rapid Alarm device can send jam alarming information to the analysis processing computer of point duty control center fast.
This technical scheme is intended to ensure can find fast after road gets congestion and causes the initiation point that blocks up, but after applicant further considers this technical scheme, also there are the following problems to find this scheme:
1, block up detecting device be transversal section detect, can not monitor continuously the vehicle in a region, also just can not find in real time the actual initiation point that blocks up of road accurately.2, only have to cause when blocking up when the vehicle queue length that causes of point is discharged to the detecting device that transversal section arranges and just can think to block up, and then judge whether it is to cause point.3, block up while generation, need after upstream and downstream association, could judge whether current blocking up causes a little.
Summary of the invention
Technical matters to be solved by this invention is that prior art can not be found traffic jamming triggering point in real time, fast, thereby a kind of system and method that can accurately find to cause area traffic jamming triggering point is provided.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The invention provides a kind of instant discovery through street block up cause point method, comprise the steps:
S1: utilize video tracking technology to carry out omnidistance Continuous Tracking to the vehicle travelling on through street, the position of each vehicle of Real-time Obtaining and the speed of a motor vehicle;
S2: whether the speed that judges tracked rolling stock is consistent, enters step S3 if inconsistent, if unanimously enter step S5;
S3: obtain the second speed of First Speed and L rice, the front vehicle of current location vehicle, judge whether the difference of second speed and First Speed is greater than velocity contrast threshold value, if enter step S4, otherwise return to step S1;
S4: judge that congestion in road and current location are as the initiation point that blocks up;
S5: judge that whether car speed is all lower than threshold speed, if enter step S6, otherwise return to step S1;
S6: judge congestion in road but be not the initiation point that blocks up.
Described instant discovery through street blocks up and causes the method for point, in described step S4, also comprises the steps:
Set very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.
Described instant discovery through street blocks up and causes the method for point, in described step S6, also comprises the steps:
Set the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.
Described instant discovery through street blocks up and causes the method for point, and described the second time threshold equates with described very first time threshold value.
Described instant discovery through street blocks up and causes the method for point, in described step S3, and described velocity contrast threshold value=A × second speed, wherein A is coefficient constant and 0 < A < 0.5.
Described instant discovery through street blocks up and causes the method for point, in described step S5, and described threshold speed=speed limit × N, wherein N is coefficient constant, and 0 < N < 0.5.
Described instant discovery through street blocks up and causes the method for point, in described step S3, and 0 < L≤20.
The system that the present invention also provides a kind of instant discovery through street to block up initiation point, comprising:
Video tracking unit, carries out omnidistance Continuous Tracking to the vehicle travelling on through street, the position of each vehicle of Real-time Obtaining and the speed of a motor vehicle;
The first judging unit, judges that whether the speed of tracked rolling stock is consistent;
The second judging unit, in the time that the speed of tracked rolling stock is inconsistent, obtains the second speed of First Speed and L rice, the front vehicle of current location vehicle, and judges whether the difference of second speed and First Speed is greater than velocity contrast threshold value;
Cause some identifying unit, for judging that in the time that whether the difference of second speed and First Speed is greater than velocity contrast threshold value this current location is as blocking up initiation point;
The 3rd judging unit, in the time that the speed of tracked rolling stock is consistent, judges that whether car speed is all lower than threshold speed;
The identifying unit that blocks up, the speed of tracked rolling stock is during all lower than threshold speed, judges congestion in road but is not the initiation point that blocks up.
Described instant discovery through street blocks up and causes the system of point, in described initiation point identifying unit, be preset with very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.
Described instant discovery through street blocks up and causes the system of point, described in block up in identifying unit and be preset with the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) instant discovery of the present invention through street blocks up and causes the method and system of point, adopt video tracking technology to carry out Continuous Tracking to the vehicle travelling on through street, video tracking technology can obtain more accurately the transport condition of vehicle and can realize the omnidistance Continuous Tracking to vehicle, instead of only detects for a transversal section.In addition, adopt after video Continuous Tracking technology, only need to just compare can Obtaining Accurate to block up in the speed of a motor vehicle at diverse location place to vehicle and cause the position of putting place, therefore there is better real-time, and owing to can vehicle being carried out to omnidistance Continuous Tracking, therefore can determine in real time block up cause point and without the association of carrying out upstream and downstream, there is higher efficiency.
(2) instant discovery of the present invention through street blocks up and causes the method and system of point, very first time threshold value and the second time threshold are also set, when the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, then judge that congestion in road and current location are the initiation point that blocks up; Car speed exceedes described the second time threshold lower than threshold speed and duration, then judges that congestion in road and current location are the initiation point that blocks up.Can reduce rate of false alarm by above-mentioned time threshold is set, further improve the accuracy of system.
Brief description of the drawings
For content of the present invention is more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is instant the block up process flow diagram of the method that causes point of through street of finding described in one embodiment of the invention;
Fig. 2 is instant the block up process flow diagram of the method that causes point of through street of finding described in one embodiment of the invention;
Fig. 3 is the schematic diagram of one embodiment of the invention video tracking unit set-up mode.
Fig. 4 is instant the block up theory diagram of the system that causes point of through street of finding described in one embodiment of the invention.
Embodiment
embodiment 1
The method that the present embodiment provides a kind of instant discovery through street to block up initiation point, as shown in Figure 1, comprises the steps:
S1: utilize video tracking technology to carry out omnidistance Continuous Tracking to the vehicle travelling on through street, the position of each vehicle of Real-time Obtaining and the speed of a motor vehicle.
S2: whether the speed that judges tracked rolling stock is consistent, enters step S3 if inconsistent, if unanimously enter step S5.
S3: obtain the second speed of First Speed and L rice, the front vehicle of current location vehicle, judge whether the difference of second speed and First Speed is greater than velocity contrast threshold value, if enter step S4, otherwise return to step S1.
S4: judge that congestion in road and current location are as the initiation point that blocks up.
S5: judge that whether car speed is all lower than threshold speed, if enter step S6, otherwise return to step S1.
S6: judge congestion in road but be not the initiation point that blocks up.
Wherein, in described step S1, utilize video tracking technology to carry out omnidistance Continuous Tracking to the vehicle travelling on through street, can realize by multiple video trackings unit is set on through street, the monitoring range of the video tracking unit that wherein monitoring range of each video tracking unit is adjacent with it has overlapping, as shown in Figure 3.
Concrete implementation process applicant is open at patent documentation CN201310283860.6-" confirming fast the system and method for road traffic accident escape vehicle identity ", as shown in Figure 3, some video trackings unit, be arranged at intervals at and arrange on through street according to certain distance along vehicle heading, described in each, the video tracking scope of video tracking unit contains at least two datum lines, and Article 1 datum line and the last item datum line within the scope of each video tracking is present in adjacent two described video tracking scopes simultaneously; Described in each, video tracking unit carries out Continuous Tracking to each vehicle entering within the scope of its video tracking, in the time that headstock arrives the Article 1 datum line within the scope of video tracking, judge that vehicle sails video tracking scope into, in the time that headstock arrives the last item datum line, judge that vehicle rolls this video tracking scope away from.On road, execute and drawn 00,01,02,03 4 datum line, it should be noted that, datum line herein can be the actual graticule of drawing on road of executing, and can be also the static object of reference such as electric pole, flower bed that is arranged at roadside.Corresponding trackside is provided with three video tracking unit, and the video tracking scope of each video tracking unit is determined with the dotted line of its both sides and the intersection point of road.As can be seen from the figure, each video tracking scope contains two datum lines, datum line 01 is present in the video monitoring range of first video tracking unit and second video tracking unit simultaneously, and datum line 02 is present within the scope of the video tracking of second video tracking unit and the 3rd video tracking unit simultaneously.So,, in the time that the headstock of vehicle arrives datum line 01, can judge that vehicle has rolled the video tracking scope that the video tracking scope of first video tracking unit has been sailed second video tracking unit into simultaneously away from.In the time that the headstock of vehicle arrives datum line 02, can judge that vehicle has rolled the video tracking scope of second video tracking unit away from, sailed the video tracking scope of the 3rd video tracking unit into simultaneously, realize the Continuous Tracking to vehicle with this.
Described in the present embodiment step S2, speed is consistent, does not refer to that the travel speed of tracked rolling stock is all identical because according to different drivers' driving habits the vehicle condition with different vehicle, be difficult to reach this point.Its medium velocity can be unanimously that the travel speed of rolling stock is roughly equal, the fastest speed and the slowest speed differ also little, be all for example about 50km/ hour, and if there is the vehicle having at 50km/ hour, some vehicles are but at 30km/ hour, and at this time car speed has just been inconsistent situation.
In described step S3, L rice can be selected according to actual conditions, generally selects within 20 meters, is preferably 10 meters.Can think that on through street, existing mobile blocking up causes some detection zone, the length that detection zone is selected in this initiation of blocking up is L rice.If vehicle speed before entering this initiation point detection zone that blocks up is always very low, there is suddenly the raising of a higher value and leave this speed of blocking up behind initiation point detection zone, this region is and causes the region blocking up obviously.In addition, in this step, described velocity contrast threshold value=A × second speed, wherein A is coefficient constant and 0 < A < 1.A wherein can be chosen as 0.3,0.5 etc.If for example vehicle blocks up that to cause the speed of point before detection zone be 30KM/ hour sailing into, and vehicle leaves the speed causing behind some detection zone of blocking up and has directly been promoted to 100KM/ hour, can think and have and cause the initiation point blocking up in this region.
Further, in described step S5, described threshold speed=speed limit × N, wherein N is coefficient constant, and 0 < N < 0.5, is preferably 0.3.For example on general through street, speed limit is 100km/ hour, can think so if the travel speed of all vehicles in certain section of region is all less than and can thinks congestion in road in the situation of 30km/ hour.If but the speed of all vehicles is all less than threshold speed, can only illustrates that section blocks up, but can not illustrate it is the initiation point that blocks up.
Adopt video tracking technology to carry out Continuous Tracking to the vehicle travelling on through street, video tracking technology can obtain more accurately the transport condition of vehicle and can realize the omnidistance Continuous Tracking to vehicle, instead of only detects for a transversal section.In addition, adopt after video Continuous Tracking technology, only need to just compare can Obtaining Accurate to block up in the speed of a motor vehicle at diverse location place to vehicle and cause the position of putting place, therefore there is better real-time, and owing to can vehicle being carried out to omnidistance Continuous Tracking, therefore can determine in real time block up cause point and without the association of carrying out upstream and downstream, there is higher efficiency.
Further, as shown in Figure 4, in described step S4, also comprise the steps: to set very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.In described step S6, also comprise the steps: to set the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.The setting of described very first time threshold value and described the second time threshold can be selected flexibly, the two also can equate, generally can select 10 seconds, 15 seconds, 30 seconds etc., Threshold less, confirming as blocks up cause point or required time of congestion in road just shorter, but rate of false alarm may improve.Can reduce rate of false alarm by above-mentioned time threshold is set, further improve the accuracy of system.
embodiment 2
The system that the present embodiment provides a kind of instant discovery through street to block up initiation point, as shown in Figure 4, comprising:
Video tracking unit, carries out omnidistance Continuous Tracking to the vehicle travelling on through street, the position of each vehicle of Real-time Obtaining and the speed of a motor vehicle.The first judging unit, judges that whether the speed of tracked rolling stock is consistent.The second judging unit, in the time that the speed of tracked rolling stock is inconsistent, obtains the second speed of First Speed and L rice, the front vehicle of current location vehicle, and judges whether the difference of second speed and First Speed is greater than velocity contrast threshold value.Cause some identifying unit, for judging that in the time that whether the difference of second speed and First Speed is greater than velocity contrast threshold value this current location is as the initiation point that blocks up.The 3rd judging unit, in the time that the speed of tracked rolling stock is consistent, judges that whether car speed is all lower than threshold speed.The identifying unit that blocks up, the speed of tracked rolling stock is during all lower than threshold speed, judges congestion in road but is not the initiation point that blocks up.
Wherein, the vehicle travelling on through street is carried out to omnidistance Continuous Tracking, can realize by multiple video trackings unit is set on through street, the monitoring range of the video tracking unit that wherein monitoring range of each video tracking unit is adjacent with it has overlapping, as shown in Figure 3.
As shown in Figure 3, some video trackings unit, be arranged at intervals at and arrange on through street according to certain distance along vehicle heading, described in each, the video tracking scope of video tracking unit contains at least two datum lines, and Article 1 datum line and the last item datum line within the scope of each video tracking is present in adjacent two described video tracking scopes simultaneously; Described in each, video tracking unit carries out Continuous Tracking to each vehicle entering within the scope of its video tracking, in the time that headstock arrives the Article 1 datum line within the scope of video tracking, judge that vehicle sails video tracking scope into, in the time that headstock arrives the last item datum line, judge that vehicle rolls this video tracking scope away from.On road, execute and drawn 00,01,02,03 4 datum line, it should be noted that, datum line herein can be the actual graticule of drawing on road of executing, and can be also the static object of reference such as electric pole, flower bed that is arranged at roadside.Corresponding trackside is provided with three video tracking unit, and the video tracking scope of each video tracking unit is determined with the dotted line of its both sides and the intersection point of road.As can be seen from the figure, each video tracking scope contains two datum lines, datum line 01 is present in the video monitoring range of first video tracking unit and second video tracking unit simultaneously, and datum line 02 is present within the scope of the video tracking of second video tracking unit and the 3rd video tracking unit simultaneously.So,, in the time that the headstock of vehicle arrives datum line 01, can judge that vehicle has rolled the video tracking scope that the video tracking scope of first video tracking unit has been sailed second video tracking unit into simultaneously away from.In the time that the headstock of vehicle arrives datum line 02, can judge that vehicle has rolled the video tracking scope of second video tracking unit away from, sailed the video tracking scope of the 3rd video tracking unit into simultaneously, realize the Continuous Tracking to vehicle with this.
Described in the present embodiment, speed is consistent, does not refer to that the travel speed of tracked rolling stock is all identical because according to different drivers' driving habits the vehicle condition with different vehicle, be difficult to reach this point.Its medium velocity can be unanimously that the travel speed of rolling stock is roughly equal, the fastest speed and the slowest speed differ also little, be all for example about 50km/ hour, if and some vehicles are at 50km/ hour, some vehicles are but at 30km/ hour, and at this time car speed has just been inconsistent situation.
Further, the L rice in described the second judging unit can be selected according to actual conditions, generally selects within 20 meters, is preferably 10 meters.Can think that on through street, existing mobile blocking up causes some detection zone, the length that detection zone is selected in this initiation of blocking up is L rice.If vehicle speed before entering this initiation point detection zone that blocks up is always very low, there is suddenly the raising of a higher value and leave this speed of blocking up behind initiation point detection zone, this region is and causes the region blocking up obviously.In addition, described velocity contrast threshold value=A × second speed, wherein A is coefficient constant and 0 < A < 1.A wherein can be chosen as 0.3,0.5 etc.For example: if vehicle blocks up that to cause the speed of point before detection zone be 30KM/ hour sailing into, and vehicle leaves the speed causing behind some detection zone of blocking up and has directly been promoted to 100KM/ hour, can think and have and cause the initiation point blocking up in this region.
Further, in described the 3rd judging unit, described threshold speed=speed limit × N, wherein N is coefficient constant, and 0 < N < 0.5, is preferably 0.3.For example on general through street, speed limit is 100km/ hour, can think so if the travel speed of all vehicles in certain section of region is all less than and can thinks congestion in road in the situation of 30km/ hour.If but the speed of all vehicles is all less than threshold speed, can only illustrates that section blocks up, but initiation point can not be described.
Adopt video tracking technology to carry out Continuous Tracking to the vehicle travelling on through street, video tracking technology can obtain more accurately the transport condition of vehicle and can realize the omnidistance Continuous Tracking to vehicle, instead of only detects for a transversal section.In addition, adopt after video Continuous Tracking technology, only need to just compare can Obtaining Accurate to block up in the speed of a motor vehicle at diverse location place to vehicle and cause the position of putting place, therefore there is better real-time, and owing to can vehicle being carried out to omnidistance Continuous Tracking, therefore can determine in real time block up cause point and without the association of carrying out upstream and downstream, there is higher efficiency.
Further, in described initiation point identifying unit, be preset with very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.In the described identifying unit that blocks up, be preset with the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.The setting of described very first time threshold value and described the second time threshold can be selected flexibly, the two also can equate, generally can select 10 seconds, 15 seconds, 30 seconds etc., Threshold less, confirming as blocks up cause point or required time of congestion in road just shorter, but rate of false alarm may improve.Can reduce rate of false alarm by above-mentioned time threshold is set, further improve the accuracy of system.
In described initiation point identifying unit, be preset with very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.
In the described identifying unit that blocks up, be preset with the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to process flow diagram and/or the block scheme of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computing machine or other programmable data processing device produces the device for realizing the function of specifying at flow process of process flow diagram or multiple flow process and/or square frame of block scheme or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of process flow diagram or multiple flow process and/or square frame of block scheme or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computing machine or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of process flow diagram or multiple flow process and/or square frame of block scheme or multiple square frame on computing machine or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Claims (10)
1. instant discovery through street blocks up and causes a method for point, it is characterized in that, comprises the steps:
S1: utilize video tracking technology to carry out omnidistance Continuous Tracking to the vehicle travelling on through street, the position of each vehicle of Real-time Obtaining and the speed of a motor vehicle;
S2: whether the speed that judges tracked rolling stock is consistent, enters step S3 if inconsistent, if unanimously enter step S5;
S3: obtain the second speed of First Speed and L rice, the front vehicle of current location vehicle, judge whether the difference of second speed and First Speed is greater than velocity contrast threshold value, if enter step S4, otherwise return to step S1;
S4: judge that congestion in road and current location are as the initiation point that blocks up;
S5: judge that whether car speed is all lower than threshold speed, if enter step S6, otherwise return to step S1;
S6: judge congestion in road but be not the initiation point that blocks up.
2. instant discovery according to claim 1 through street blocks up and causes the method for point, it is characterized in that, in described step S4, also comprises the steps:
Set very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.
3. instant discovery according to claim 1 and 2 through street blocks up and causes the method for point, it is characterized in that, in described step S6, also comprises the steps:
Set the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.
4. instant discovery according to claim 3 through street blocks up and causes the method for point, it is characterized in that, described the second time threshold equates with described very first time threshold value.
5. block up and cause the method for point according to the arbitrary described instant discovery through street of claim 1-4, it is characterized in that, in described step S3, described velocity contrast threshold value=A × second speed, wherein A is coefficient constant and 0 < A < 0.5.
6. block up and cause the method for point according to the arbitrary described instant discovery through street of claim 1-5, it is characterized in that, in described step S5, described threshold speed=speed limit × N, wherein N is coefficient constant, and 0 < N < 0.5.
7. block up and cause the method for point according to the arbitrary described instant discovery through street of claim 1-6, it is characterized in that, in described step S3,0 < L≤20.
8. instant discovery through street blocks up and causes a system for point, it is characterized in that, comprising:
Video tracking unit, carries out omnidistance Continuous Tracking to the vehicle travelling on through street, the position of each vehicle of Real-time Obtaining and the speed of a motor vehicle;
The first judging unit, judges that whether the speed of tracked rolling stock is consistent;
The second judging unit, in the time that the speed of tracked rolling stock is inconsistent, obtains the second speed of First Speed and L rice, the front vehicle of current location vehicle, and judges whether the difference of second speed and First Speed is greater than velocity contrast threshold value;
Cause some identifying unit, for judging that in the time that whether the difference of second speed and First Speed is greater than velocity contrast threshold value this current location is as blocking up initiation point;
The 3rd judging unit, in the time that the speed of tracked rolling stock is consistent, judges that whether car speed is all lower than threshold speed;
The identifying unit that blocks up, the speed of tracked rolling stock is during all lower than threshold speed, judges congestion in road but is not the initiation point that blocks up.
9. instant discovery according to claim 8 through street blocks up and causes the system of point, it is characterized in that:
In described initiation point identifying unit, be preset with very first time threshold value, if the difference of second speed and First Speed exceedes described very first time threshold value higher than velocity contrast threshold value and duration, judge that congestion in road and current location are as the initiation point that blocks up.
10. instant discovery through street according to claim 8 or claim 9 blocks up and causes the system of point, it is characterized in that:
In the described identifying unit that blocks up, be preset with the second time threshold, if car speed exceedes described the second time threshold lower than threshold speed and duration, judge it is congestion in road point section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156568.2A CN103903444B (en) | 2014-04-17 | 2014-04-17 | A kind of instant discovery through street blocks up and causes the method and system of point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156568.2A CN103903444B (en) | 2014-04-17 | 2014-04-17 | A kind of instant discovery through street blocks up and causes the method and system of point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103903444A true CN103903444A (en) | 2014-07-02 |
| CN103903444B CN103903444B (en) | 2015-11-18 |
Family
ID=50994745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410156568.2A Active CN103903444B (en) | 2014-04-17 | 2014-04-17 | A kind of instant discovery through street blocks up and causes the method and system of point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103903444B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504539A (en) * | 2017-01-04 | 2017-03-15 | 安徽科力信息产业有限责任公司 | A kind of method and system of quick determination highway congestion source position |
| CN106504538A (en) * | 2017-01-04 | 2017-03-15 | 安徽科力信息产业有限责任公司 | A kind of quick elimination causes the method and system in highway congestion source |
| CN106504532A (en) * | 2016-11-09 | 2017-03-15 | 青岛海信网络科技股份有限公司 | A kind of method and apparatus for determining stream signal control point position |
| CN107134133A (en) * | 2017-01-23 | 2017-09-05 | 北京博研智通科技有限公司 | The method and system that highway traffic congestion degree sorts between area under one's jurisdiction |
| CN107134132A (en) * | 2017-01-23 | 2017-09-05 | 北京博研智通科技有限公司 | Improve the method and system of the current coefficient computational accuracy of being obstructed of highway |
| CN107154149A (en) * | 2017-01-23 | 2017-09-12 | 北京博研智通科技有限公司 | The computational methods and system of the coefficient that is obstructed of road passage capability can be reflected |
| CN108665701A (en) * | 2018-03-28 | 2018-10-16 | 上海与德科技有限公司 | A kind of traffic congestion recognition methods, device, terminal and storage medium |
| CN112435472A (en) * | 2020-11-12 | 2021-03-02 | 北京嘀嘀无限科技发展有限公司 | Congestion analysis method, device, equipment and storage medium |
| CN113593227A (en) * | 2021-07-22 | 2021-11-02 | 青岛海信网络科技股份有限公司 | Traffic jam detection method and server |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030135383A1 (en) * | 2002-01-17 | 2003-07-17 | Fujitsu Limited | Travelable range calculation method and marketing support method |
| JP2005331378A (en) * | 2004-05-20 | 2005-12-02 | Nissan Motor Co Ltd | Route search guide device, and route search guide method |
| US20080221783A1 (en) * | 2006-04-18 | 2008-09-11 | Gregory Jensen Boss | Intelligent redirection of vehicular traffic due to congestion and real time performance metrics |
| CN101681553A (en) * | 2007-08-22 | 2010-03-24 | 丰田自动车株式会社 | Traffic information creation method, traffic information creation device, and navigation system |
| CN101707005A (en) * | 2009-11-05 | 2010-05-12 | 姜廷顺 | Rapidly alarming system to signal light crossing congestion by video detection and operation method thereof |
| CN101719314A (en) * | 2009-11-17 | 2010-06-02 | 姜廷顺 | Area traffic jamming triggering point record analysis system and operation method thereof |
| EP2322400A2 (en) * | 2009-11-11 | 2011-05-18 | Audi AG | Method for operating a traffic jam assistance system |
| CN102470868A (en) * | 2009-07-28 | 2012-05-23 | 丰田自动车株式会社 | Vehicle control device, vehicle control method, and vehicle control system |
-
2014
- 2014-04-17 CN CN201410156568.2A patent/CN103903444B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030135383A1 (en) * | 2002-01-17 | 2003-07-17 | Fujitsu Limited | Travelable range calculation method and marketing support method |
| JP2005331378A (en) * | 2004-05-20 | 2005-12-02 | Nissan Motor Co Ltd | Route search guide device, and route search guide method |
| US20080221783A1 (en) * | 2006-04-18 | 2008-09-11 | Gregory Jensen Boss | Intelligent redirection of vehicular traffic due to congestion and real time performance metrics |
| CN101681553A (en) * | 2007-08-22 | 2010-03-24 | 丰田自动车株式会社 | Traffic information creation method, traffic information creation device, and navigation system |
| CN102470868A (en) * | 2009-07-28 | 2012-05-23 | 丰田自动车株式会社 | Vehicle control device, vehicle control method, and vehicle control system |
| CN101707005A (en) * | 2009-11-05 | 2010-05-12 | 姜廷顺 | Rapidly alarming system to signal light crossing congestion by video detection and operation method thereof |
| EP2322400A2 (en) * | 2009-11-11 | 2011-05-18 | Audi AG | Method for operating a traffic jam assistance system |
| CN101719314A (en) * | 2009-11-17 | 2010-06-02 | 姜廷顺 | Area traffic jamming triggering point record analysis system and operation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姜廷顺，等: "自动跟踪拥挤路段的电视监控***", 《2001全国软件技术研讨会》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504532A (en) * | 2016-11-09 | 2017-03-15 | 青岛海信网络科技股份有限公司 | A kind of method and apparatus for determining stream signal control point position |
| CN106504539A (en) * | 2017-01-04 | 2017-03-15 | 安徽科力信息产业有限责任公司 | A kind of method and system of quick determination highway congestion source position |
| CN106504538A (en) * | 2017-01-04 | 2017-03-15 | 安徽科力信息产业有限责任公司 | A kind of quick elimination causes the method and system in highway congestion source |
| CN107134133A (en) * | 2017-01-23 | 2017-09-05 | 北京博研智通科技有限公司 | The method and system that highway traffic congestion degree sorts between area under one's jurisdiction |
| CN107134132A (en) * | 2017-01-23 | 2017-09-05 | 北京博研智通科技有限公司 | Improve the method and system of the current coefficient computational accuracy of being obstructed of highway |
| CN107154149A (en) * | 2017-01-23 | 2017-09-12 | 北京博研智通科技有限公司 | The computational methods and system of the coefficient that is obstructed of road passage capability can be reflected |
| CN108665701A (en) * | 2018-03-28 | 2018-10-16 | 上海与德科技有限公司 | A kind of traffic congestion recognition methods, device, terminal and storage medium |
| CN112435472A (en) * | 2020-11-12 | 2021-03-02 | 北京嘀嘀无限科技发展有限公司 | Congestion analysis method, device, equipment and storage medium |
| CN113593227A (en) * | 2021-07-22 | 2021-11-02 | 青岛海信网络科技股份有限公司 | Traffic jam detection method and server |
| CN113593227B (en) * | 2021-07-22 | 2022-06-10 | 青岛海信网络科技股份有限公司 | Traffic jam detection method and server |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103903444B (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103903444B (en) | A kind of instant discovery through street blocks up and causes the method and system of point | |
| CN103927868B (en) | A kind ofly can find the method and system causing area traffic jamming reason | |
| JP6572847B2 (en) | Automated driving system | |
| CN103903465A (en) | Method and system for releasing reason for road congestion in real time | |
| CN101727741B (en) | Safe driving evaluation system and safe driving evaluation program | |
| CN103956060B (en) | A kind of crossing that can reduce green light lost time controls machine and control method | |
| CN104008648B (en) | A kind of block up initiation point monitoring system and method based on radar tracking technology | |
| US20140303882A1 (en) | Apparatus and method for providing intersection collision-related information | |
| CN103985261A (en) | Traffic signal light control method and system based on vehicle queuing length measurement | |
| EP3296762A1 (en) | Monitored area setting device and monitored area setting method | |
| CN104021673A (en) | System and method for rapidly finding congestion causing reasons by utilizing radar tracking technology | |
| CN103927889B (en) | A kind of fast road ramp signal control method and system utilizing video tracking technique | |
| US10864912B2 (en) | Vehicle state determination device and vehicle state determination method | |
| CN103985251A (en) | Method and system for calculating vehicle queuing length | |
| CN103985255B (en) | Radar tracking technology is utilized precisely to judge the system and method for runway exception parking | |
| CN105096592B (en) | Highway congestion event detecting method and early warning system | |
| CN103886751A (en) | System and method for finding out road accident rapidly | |
| CN105185117A (en) | Road travel time predicting method, system, and device | |
| CN102819956B (en) | Detecting method for road traffic accident on basis of single-section annular coil detector | |
| CN109094560A (en) | A kind of adaptive cruise method and device | |
| CN103971516A (en) | Traffic data preprocessing method and road condition detection method | |
| JP2012248107A (en) | Probe information transmission device, computer program and processing server | |
| CN106846797A (en) | Vehicle peccancy detection method and device | |
| CN103383812A (en) | System and method for releasing travel time by being accurate to second | |
| CN110940981A (en) | Method for judging whether position of target in front of vehicle is in lane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100043 Beijing city Shijingshan District Fushilu No. 165 Chinese China recorded 9 storey building Applicant after: Beijing E-Hualu Information Technology Co., Ltd. Applicant after: Jiang Tingshun Address before: 116011 No. 45 Xinhua Street, Xigang District, Liaoning, Dalian Applicant before: Jiang Tingshun Applicant before: Beijing E-Hualu Information Technology Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |