CN103337165A - System and method for analyzing road traffic state based on multipurpose bayonet and analysis method - Google Patents
System and method for analyzing road traffic state based on multipurpose bayonet and analysis method Download PDFInfo
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- CN103337165A CN103337165A CN2013103014285A CN201310301428A CN103337165A CN 103337165 A CN103337165 A CN 103337165A CN 2013103014285 A CN2013103014285 A CN 2013103014285A CN 201310301428 A CN201310301428 A CN 201310301428A CN 103337165 A CN103337165 A CN 103337165A
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Abstract
The invention discloses a system and a method for analyzing a road traffic state based on a multipurpose bayonet and an analysis method. Data are uploaded to a road on which a multipurpose road vehicle intelligent monitoring system and analyzed, so that a state of the road is determined, and the data are provided for a traffic situation system and an LED induction screen. No workers are needed, and the system and the method are simple and rapid.
Description
Technical field
The present invention relates to the traffic monitoring field, relate in particular to the bayonet socket data processing technique is applied to scheme in the traffic monitoring.
Background technology
Existing LED induces the screen source that releases news mostly to be artificial judgement, the staff by the crossing manually reconnoitre, means such as electronic monitoring obtain road condition information, to inducing screen less, the staff still can deal with under the simple situation of road conditions, and screen is more, road conditions complex work personnel can be very busy to inducing.。
So, need a kind of new technical scheme to address the above problem.
Summary of the invention
The object of the invention provides a kind of road traffic state analytic system based on the multiple-use card mouth, realizes robotization in order to the judgement with city traffic.
For achieving the above object, the road traffic state analytic system that the present invention is based on the multiple-use card mouth can adopt following technical scheme:
A kind of road traffic state analytic system based on the multiple-use card mouth comprises:
The road vehicle intelligent monitoring systems of using in order to monitor the time that some vehicles pass through two adjacent intersections respectively more;
Multiple-use card mouth database is in order to passing through the time of each car of the some vehicles that pass through identical adjacent two crossings that will monitor;
The congestion status computing module, default velocity amplitude and the velocity amplitude that generally blocks up of slightly blocking up of this congestion status computing module, time of passing through of each car of the some vehicles that pass through identical adjacent two crossings in the multiple-use card mouth database extracted calculate the car speed mean value of obtaining by adjacent two crossings, if this mean value greater than the velocity amplitude that slightly blocks up, judges that then the highway section state is unimpeded state between these two adjacent intersections; If this mean value is not more than the velocity amplitude and greater than the velocity amplitude that generally blocks up of slightly blocking up, judge that then the highway section state is general congestion status between these two adjacent intersections; If this mean value is not more than the velocity amplitude that generally blocks up, judge that then the highway section state is serious congestion status between these two adjacent intersections;
LED induces screen, in order to the traffic information issue that will draw.
Compare with background technology, the present invention uploads data analysis to it and realizes judgement to road condition according to many roads with the road vehicle intelligent monitoring system are housed, for the traffic situation system provides and LED induces to shield data are provided.Need not the staff, simple and fast.
Description of drawings
Fig. 1 is the process flow diagram of analytical approach that the present invention is based on the road traffic state analytic system of multiple-use card mouth.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
The present invention discloses a kind of road traffic state analytic system based on the multiple-use card mouth, comprising:
Many with road vehicle intelligent monitoring system (multiple-use card mouth), in order to monitor the time that some vehicles pass through two adjacent intersections respectively;
Multiple-use card mouth database is in order to passing through the time of each car of the some vehicles that pass through identical adjacent two crossings that will monitor;
The congestion status computing module, default velocity amplitude and the velocity amplitude that generally blocks up of slightly blocking up of this congestion status computing module, time of passing through of each car of the some vehicles that pass through identical adjacent two crossings in the multiple-use card mouth database extracted calculate the car speed mean value of obtaining by adjacent two crossings, if this mean value greater than the velocity amplitude that slightly blocks up, judges that then the highway section state is unimpeded state between these two adjacent intersections; If this mean value is not more than the velocity amplitude and greater than the velocity amplitude that generally blocks up of slightly blocking up, judge that then the highway section state is general congestion status between these two adjacent intersections; If this mean value is not more than the velocity amplitude that generally blocks up, judge that then the highway section state is serious congestion status between these two adjacent intersections;
LED induces screen, in order to the traffic information issue that will draw.
See also shown in Figure 1ly, the analytical approach of above-mentioned road traffic state analytic system based on the multiple-use card mouth is: at first need the highway section is configured the beginning crossing, finish the crossing, reference velocity, the speed of slightly blocking up Vq, the speed of seriously blocking up Vy, road section length L;
By the road section information that needs are judged, find out the beginning crossing in highway section, finish the crossing, road section length L; Search in the nearest certain hour the current vehicles in two crossings at multiple-use card mouth lane database, and find out same vehicle information (car1, car2, car3 ..., carn});
Deduct through the time that finishes the crossing through time at beginning crossing with each vehicle and to obtain transit time T, T 0 for finishing the crossing to beginning crossing direction; T＜0 is arrived for the beginning crossing and is finished the crossing direction;
1), analyze the state that beginning crossing direction is arrived at the end crossing earlier:
Take out T〉0 data,
With road section length L divided by obtaining single unit vehicle speed V by time T, V=L/T,
Arrange from big to small by all car speeds, take out preceding 40% data and average, 40% is the screening value, and this value is in order to screen the vehicle of jogging such as stops the arranged cause specific of etc.ing midway, and this value is judgement velocities Vp d, Vpd=(V1+V2+V3+...+Vn)/n; Vn is the speed of n car;
With judgement speed (Vpd) and the speed Vq that slightly blocks up, the speed of seriously blocking up Vy relatively;
If: Vpd〉Vq then this highway section state is unimpeded state;
If: Vpd=＜Vy then to change the highway section state be general congestion status;
If: Vq〉Vpd〉Vy then to change the highway section state be serious congestion status;
2), analyze the beginning crossing and arrive the state that finishes the crossing direction:
Take out the data of T＜0;
Obtain single unit vehicle speed V, V=|L/T| divided by taking absolute value by time T with road section length L;
Arrange from big to small by all car speeds, take out preceding 40% data, 40% is the screening value, and this value is in order to screen the vehicle of cause specifics such as stop is arranged jogging midway;
Average, this value is for judging velocities Vp d ':
Vpd '=(V1+V2+V3+...+Vn)/n, Vn is the speed of n car;
With judging velocities Vp d ' and the speed Vq that slightly blocks up, the speed of seriously blocking up Vy relatively;
If: Vpd ' 〉=Vq then this highway section state is unimpeded state;
If: Vpd '=＜Vy then to change the highway section state be general congestion status;
If: Vq〉Vpd '〉Vy then to change the highway section state be serious congestion status.
The present invention dynamically shows the urban road state to analysis result on warning with Geographic Information System, realize early warning and the warning of road condition.And the result who analyzes computing, real-time and LED traffic guidance screen information interaction provides the trip guide to traffic participant.The objective of the invention is to the judgement of city traffic is realized robotization.The present invention uploads data analysis according to the road that the multiple-use card mouth is housed to it and realizes judgement to road condition, for the traffic situation system provides and LED induces screen that data are provided.Need not the staff, simple and fast.
Claims (2)
1. the road traffic state analytic system based on the multiple-use card mouth is characterized in that, comprising:
The road vehicle intelligent monitoring systems of using in order to monitor the time that some vehicles pass through two adjacent intersections respectively more;
Multiple-use card mouth database is in order to passing through the time of each car of the some vehicles that pass through identical adjacent two crossings that will monitor;
The congestion status computing module, default velocity amplitude and the velocity amplitude that generally blocks up of slightly blocking up of this congestion status computing module, time of passing through of each car of the some vehicles that pass through identical adjacent two crossings in the multiple-use card mouth database extracted calculate the car speed mean value of obtaining by adjacent two crossings, if this mean value greater than the velocity amplitude that slightly blocks up, judges that then the highway section state is unimpeded state between these two adjacent intersections; If this mean value is not more than the velocity amplitude and greater than the velocity amplitude that generally blocks up of slightly blocking up, judge that then the highway section state is general congestion status between these two adjacent intersections; If this mean value is not more than the velocity amplitude that generally blocks up, judge that then the highway section state is serious congestion status between these two adjacent intersections;
LED induces screen, in order to the traffic information issue that will draw.
2. the analytical approach of the road traffic state analytic system based on the multiple-use card mouth according to claim 1 is characterized in that: at first need the highway section is configured the beginning crossing, finish the crossing, reference velocity, the speed of slightly blocking up Vq, the speed of seriously blocking up Vy, road section length L;
By the road section information that needs are judged, find out the beginning crossing in highway section, finish the crossing, road section length L; Search in the nearest certain hour the current vehicles in two crossings at multiple-use card mouth lane database, and find out same vehicle information (car1, car2, car3 ..., carn});
Deduct through the time that finishes the crossing through time at beginning crossing with each vehicle and to obtain transit time T, T 0 for finishing the crossing to beginning crossing direction; T＜0 is arrived for the beginning crossing and is finished the crossing direction;
1), analyze the state that beginning crossing direction is arrived at the end crossing earlier:
Take out T〉0 data,
With road section length L divided by obtaining single unit vehicle speed V by time T, V=L/T,
Arrange from big to small by all car speeds, take out preceding 40% data and average, this value is for judging velocities Vp d, Vpd=(V1+V2+V3+...+Vn)/n; Vn is the speed of n car;
With judgement speed (Vpd) and the speed Vq that slightly blocks up, the speed of seriously blocking up Vy relatively;
If: Vpd〉Vq then this highway section state is unimpeded state;
If: Vpd=＜Vy then to change the highway section state be general congestion status;
If: Vq〉Vpd〉Vy then to change the highway section state be serious congestion status;
2), analyze the beginning crossing and arrive the state that finishes the crossing direction:
Take out the data of T＜0;
Obtain single unit vehicle speed V, V=|L/T| divided by taking absolute value by time T with road section length L;
Arrange from big to small by all car speeds, take out preceding 40% data;
Average, this value is for judging velocities Vp d ':
Vpd '=(V1+V2+V3+...+Vn)/n, Vn is the speed of n car;
With judging velocities Vp d ' and the speed Vq that slightly blocks up, the speed of seriously blocking up Vy relatively;
If: Vpd ' 〉=Vq then this highway section state is unimpeded state;
If: Vpd '=＜Vy then to change the highway section state be general congestion status;
If: Vq〉Vpd '〉Vy then to change the highway section state be serious congestion status.
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| CN105869405A (en) * | 2016-05-25 | 2016-08-17 | 银江股份有限公司 | Urban road traffic congestion index calculating method based on checkpoint data |
| CN106571037A (en) * | 2016-11-15 | 2017-04-19 | 同济大学 | Station detection technology-based expressway real-time road condition monitoring method |
| CN109584566A (en) * | 2018-12-28 | 2019-04-05 | 北京品恩科技股份有限公司 | A kind of public security checking station vehicle safe examination system based on Police Information |
| CN114280609A (en) * | 2021-12-28 | 2022-04-05 | 上海恒岳智能交通科技有限公司 | 77GHz millimeter wave signal detection processing method and system |
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Application publication date: 20131002 |