CN102368356B - Monitoring system and method used for freeway ramp mouth - Google Patents
Monitoring system and method used for freeway ramp mouth Download PDFInfo
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- CN102368356B CN102368356B CN 201110325939 CN201110325939A CN102368356B CN 102368356 B CN102368356 B CN 102368356B CN 201110325939 CN201110325939 CN 201110325939 CN 201110325939 A CN201110325939 A CN 201110325939A CN 102368356 B CN102368356 B CN 102368356B
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Abstract
The invention discloses a monitoring system and method for a freeway ramp mouth. The method comprises the following steps of: drawing a ground mark line and arranging a video monitoring system near an exit ramp of a freeway; presenting a solid line which indicates cross prohibition and a no-parking area which indicates parking prohibition, which are drawn on the freeway, by a video picture in a video detection unit in a virtual way; and when a vehicle which is drivn illegally is detected, shooting a picture on a vehicle license number of the vehicle which is driven illegally immediately by animage acquisition unit so as to be facilitate later discipline. The system plays a role of alarming so as to improve the traffic efficiency of the freeway ramp mouth.
Description
Technical field
The invention belongs to intelligent transportation control technology field, be specifically related to a kind of fast road ramp mouth with supervisory system and method.
Background technology
Along with the fast development in city, transport need is growing, and road traffic blocks up and causes people's travel time to increase, and makes troubles for people's daily life, has also restricted the development of urban economy simultaneously.Block up in order to alleviate road traffic, shortened people's travel time, big and medium-sized cities are the corresponding through street of having built all.Vehicle sails or rolls away from the through street into by Entrance ramp and the exit ramp that is arranged on the through street.When the magnitude of traffic flow was in peak time, vehicle just needed queuing to sail into or exit ramp.
As shown in Figure 1, when sailing vehicle into and sail the through street into by the ring road entrance, need sail on No. 2 tracks or No. 3 tracks or No. 4 tracks by No. 1 track and go, not get congestion in order to guarantee the through street, need satisfy following three conditions:
(1) outgoing vehicles that the through street is waited in line to roll away from No. 1 track in the through street can not stop that sailing vehicle into sails the through street into;
(2) vehicle that travel in No. 2 tracks in the through street can not hinder and sail that vehicle drives to No. 3 tracks or get in No. 4 tracks into, same reason, and the vehicle that travels in No. 3 tracks can not hinder and sail vehicle into and drive to No. 4 tracks and get on;
(3) sail vehicle on driving to No. 3 tracks or No. 4 tracks the time, can not hinder originally in No. 2 tracks or the vehicle that travels in No. 3 tracks continues to travel.
Satisfy above-mentioned three conditions, sail vehicle into and could drive to the through street smoothly and get on.And when outgoing vehicles is driven out on the bypass from the ring road outlet, at first want changing Lane, get in No. 1 track that drives to the rightmost side, through street, if and this moment, the traffic density on the bypass was excessive, cause outgoing vehicles can not roll the through street fast swimmingly away from, then outgoing vehicles will be lined up on No. 1 track in proper order.And the outgoing vehicles queuing time can not hinder and to sail vehicle into and sail on the through street from the ring road entrance.
Whether whether traffic department of government can get over line, can stop etc. with the regulation vehicle by execute the mode of drawing tag line in the through street.As shown in Figure 1, solid line is arranged executing to draw between No. 3 tracks and No. 2 tracks, between No. 2 tracks and No. 1 track, when outgoing vehicles when the through street is rolled in the queuing of No. 1 fleet away from, vehicle on vehicle on No. 3 tracks and No. 2 tracks all can not be crossed solid line, forbids that vehicle sails into and be provided with diversion belt at the downstream part of ring road outlet.All travel according to the tag line on mentioned above principle and the road surface if sail vehicle and outgoing vehicles into, then the probability that blocks up of through street can reduce greatly.Yet along with The development in society and economy, the number that has vehicle is more and more, a line city more especially, and the pressure of road traffic grows with each passing day, and the length that the outgoing vehicles queuing often takes place is long more a lot of than executing the solid line length of drawing on the road surface.And the dotted line on the road surface can be crossed, if the vehicle on this moment No. 3 tracks and No. 2 tracks is crossed the dotted line not traffic violation between the vehicle of No. 1 track queuing of jumping the queue, but will certainly bring blocking up of through street, in the real life, the behavior such as travel of the illegal line of overtaking other vehicles more causes fast road ramp entrance and ring road exit to get congestion causing the phenomenon of traffic paralysis to take place repeatedly.For this reason, traffic department of government arranges vehicle driving trace on the electronic eyes watch-dog monitoring through street in the through street, when vehicle have in violation of rules and regulations more line or since improper parking when causing the fast road ramp place to block up, capture also storage in violation of rules and regulations the number-plate number of driving vehicle in order to discipline as a warning in the future.Adopt this behave that the vehicle driver is had good warning function, alleviated the congestion at fast road ramp place to a certain extent.
Existing Chinese patent literature CN 100578562C discloses a kind of method with the illegal activities of video monitor vehicle, in this technical scheme, scope in image acquisition arranges a monitored area, in this zone, comprise more than one and monitor subregion, and each monitoring subregion set up a coordinate system and the traffic offence line is set, each monitoring subregion all is closed regions that surround with one or more line; The traffic offence line is one or more line segment, zone that these line segments surround, and perhaps these line segments form forbidden district more than with the zone that monitoring subregion boundary line surrounds in the monitoring subregion; Can be by the rotation of cradle head control image acquisition device, be input to processor by the video image of image acquisition device continuous acquisition image source and with these images, processor is more on the same group the difference of image, as on the same group image indifference not, then continues to gather image; If variant, identify in these differences and have or not vehicle, as no vehicle, then continue to gather image; If any vehicle, judge then whether vehicle normally travels, if normal vehicle operation then continues to gather image; Travel as vehicle is improper, then the registration of vehicle unlawful data; Improper travelling refers to that vehicle is mobile in forbidden district; The registration of vehicle unlawful data refers to by the processor control illegal picture of image acquisition device collection vehicle and generates the vehicle illegal video data by processor note these image datas and video stream data by processor control recording unit again; The vehicle illegal picture refers to the high-resolution pictures of picture and this vehicle license of record of this vehicle illegal position, the high-resolution pictures that the vehicle illegal video flowing refers to record the picture of this vehicle illegal position and records this vehicle license, the vehicle illegal video refers to record the video flowing of this vehicle illegal process.
Though technique scheme can realize the illegal activities of making a dash across the red light of monitoring record vehicle, all right other illegal activities of monitoring record vehicle, turn to as violating a ban, the compacting line travels, taboo sail lanes, more line travel, exceed the speed limit, drive in the wrong direction, vehicle illegal activities such as improper parking, still also have following problem:
In the technique scheme, mainly be to utilize the image acquisition device that is installed in the crossing to gather video flowing, utilize image acquisition device to gather the license board information of illegal running vehicle simultaneously, because this method can only be gathered near the illegal vehicle information the crossing, general range can only be in 30 meters, The Cloud Terrace is adjusted angle and is also just changed monitoring objective, owing to do not change lens focus, just can not change the monitoring distance, being used for crossing short distance (in 30 meters) can, it is then ineffective to be used for the long distance detection in highway section, even the high-definition camera that in technique scheme, adopts camera lens to change automatically, also can not adopt same high-definition camera both to monitor remote vehicle running state, can capture the clearly illegal more license board information of line driving vehicle again simultaneously.
Summary of the invention
Technical matters to be solved by this invention is that the video monitoring system of detection vehicle illegal running of the prior art behavior can not be captured at a distance illegal running vehicle license plate information clearly.
For solving the problems of the technologies described above, the invention provides a kind of fast road ramp mouth supervisory system, comprise floor line and video monitoring system, described floor line comprises:
Diversion belt: be arranged on No. 1 track, through street and be positioned at the exit ramp downstream part, forbid that vehicle sails into;
Prohibition parking area: be arranged on No. 1 track, through street and No. 2 tracks and be positioned at Entrance ramp inflow point, forbid vehicle parking;
Lines: be arranged on the through street between the adjacent lane, do not allow vehicle to cross with the solid line representative, allow vehicle to cross with the dotted line representative;
Described video monitoring system comprises:
Video detecting unit: be arranged on the upstream in monitoring highway section, have automatic following function, be used for the driving vehicle track in the monitoring range is monitored;
Image acquisition units: comprise The Cloud Terrace and camera with presetting bit function, be used for the license board information of the vehicle of shooting illegal running;
The monitor message processing unit: described monitor message processing unit utilizes coordinate system that the video pictures of described video detecting unit is marked, virtual detection band and virtual prohibition parking area are set in described video pictures, execute the solid line of drawing that keeps in line on described virtual detection band and the through street and overlap, execute diversion belt and the prohibition parking area drawn on described virtual prohibition parking area and the through street and overlap;
Described virtual detection band is divided into N section (N is natural number), and the length of every section virtual detection band is that described camera can photograph the distance of clear violation vehicle license plate information and be each virtual prohibition parking area numbering when fixed focal length; According to the information of the segment information of described virtual detection band and described virtual prohibition parking area the presetting bit information of image acquisition units, the presetting bit of each section virtual detection band and the respectively corresponding described image acquisition units of each virtual prohibition parking area are set;
Described monitor message processing unit comprises:
Data memory module: the corresponding relation and the numbering of each prohibition parking area and the corresponding relation of described presetting bit numbering that are used for numbering and the described presetting bit numbering of storage every section virtual detection band of described video pictures and the coordinate information of each virtual prohibition parking area, described image acquisition units presetting bit number information, every section virtual detection band;
Data reception module: be used for receiving the detected driving vehicle track of described video detecting unit at the coordinate information of video pictures;
Data comparison module: be used for the coordinate information of described driving vehicle track and the coordinate information of every section virtual detection band are compared, when the coordinate information of the coordinate information of driving vehicle and any one section virtual detection band is identical, then defines vehicle and cross solid line; The coordinate information of described driving vehicle track and the coordinate information of each virtual prohibition parking area are compared, when the coordinate coincidence factor of the coordinate information of driving vehicle and any one virtual prohibition parking area determines that then rule-breaking vehicle stops greater than 20% the time;
Presetting bit calling module: be used for the result according to described data comparison module, call the corresponding presetting bit information of corresponding virtual detection band or virtual prohibition parking area, control the license board information that described image acquisition units is gathered the illegal running vehicle.
On described lines right side, described prohibition parking area left side executes and draws a dotted line, represent vehicle and can get over line left.
The length of described lines solid line is the historical maximal value of exit ramp place outgoing vehicles queue length.
Described video detecting unit adopts the video camera with automatic following function.
Described camera in the described image acquisition units is connected with described The Cloud Terrace, and described The Cloud Terrace drives described camera and rotates to the appointment presetting bit, and the focal length of adjusting described cam lens simultaneously guarantees that camera can collect license board information clearly.
The present invention also provides a kind of fast road ramp mouth method for supervising, comprises the steps:
A, the monitoring highway section the upstream video detecting unit and image acquisition units are set, described image acquisition units comprises The Cloud Terrace and the camera with presetting bit function;
B, coordinate system is set in the video pictures of described video detecting unit and identifies the virtual detection band and virtual prohibition parking area, execute the solid line drawn and prohibition parking area and diversion belt on described virtual detection band and described virtual prohibition parking area and the through street and overlap;
C, described virtual detection band is divided into N section (N is natural number), the length of every section virtual detection band is described camera can photograph clear violation vehicle license plate information when fixed focal length distance, and the coordinate information of every section virtual detection band is stored in the described data memory module;
Be each virtual prohibition parking area numbering, the coordinate information of each virtual prohibition parking area is stored in the described data memory module;
D, according to the information of the segment information of virtual detection band and each virtual prohibition parking area the presetting bit information of image acquisition units is set, the corresponding relation that numbering and the presetting bit of the corresponding relation of every section virtual detection band numbering and presetting bit numbering and each virtual prohibition parking area are numbered is stored in the described data memory module;
E, described video detecting unit detect the track of driving vehicle, and the coordinate of track in video pictures of driving vehicle is sent to described data reception module;
Described data comparison module with described track of vehicle in video pictures coordinate and the coordinate of the coordinate of each section virtual detection band and each virtual prohibition parking area contrast one by one;
When the coordinate information of the coordinate information of driving vehicle and any one section virtual detection band is identical, then defines vehicle and cross solid line;
When the coordinate coincidence factor of the coordinate information of driving vehicle and any one virtual prohibition parking area determines that then rule-breaking vehicle stops greater than 20% the time;
When finding that overlapping is arranged, determine that rule-breaking vehicle travels and determine that the rule-breaking vehicle corresponding virtual of travelling detects band numbering or virtual prohibition parking area number information;
F, according to the comparative result of described data comparison module, the presetting bit calling module calls corresponding presetting bit information, control image acquisition units gather the image of corresponding presetting bit, obtain the license board information of illegal running vehicle clearly.
Video detecting unit described in the step a is the video camera with automatic following function, and described video camera is arranged on the upstream in monitoring highway section.
Image acquisition units described in the step a comprises The Cloud Terrace and the camera with presetting bit function;
Among the described step f, after described presetting bit calling module called the corresponding presetting bit information of virtual detection band, described The Cloud Terrace and camera lens were adjusted to automatically and are correspondingly obtained unlawful practice vehicle image information clearly after presetting bit position.
Technique scheme of the present invention has following beneficial effect with respect to prior art:
1. among the present invention with diversion belt and the prohibition parking area forbidding the solid line that vehicle is crossed on the road and forbid vehicle parking, show in video pictures by virtual form, by coordinate system is set in video pictures, make the optional position in the video pictures that definite coordinate be arranged, after vehicle enters monitoring range, video detecting unit tracks the track of vehicle that travels, just can obtain the coordinate figure in the vehicle driving process, the coordinate figure that data comparison module is travelled vehicle and the coordinate figure of virtual detection band and virtual prohibition parking area are compared, and can be easy to just know whether vehicle travels and parking offense in violation of rules and regulations; Because the distance that video detecting unit can detect is far away, about about 150 meters, the distance range of license board information has only about 20 meters and image acquisition units can obtain clearly, therefore be the segmentation of virtual detection band, for every section virtual detection band numbering and be the numbering of virtual prohibition parking area, and the presetting bit of image acquisition units is set accordingly according to the number information of the number information of every section virtual detection band and each virtual prohibition parking area, when knowing vehicle is at which section virtual detection band more during line or parking offense in which virtual prohibition parking area the time, image acquisition units just can go to obtain the image information of corresponding presetting bit immediately, can realize the timely monitoring to illegal vehicle, and as long as just can realize real-time monitoring to the violation driving vehicle in video detecting unit can detected distance range, the distance that can monitor is to monitor several times or even tens times of distance in the prior art.
2. the video detecting unit among the present invention and image acquisition units adopt two groups of equipment, video detecting unit is used for following the tracks of the vehicle driving trace that enters in the monitoring range specially, find the image information of the image acquisition units of the presetting bit of system call correspondence behind the vehicle peccancy and the presetting bit corresponding image information of image acquisition units pre-sets, after the presetting bit calling module calls corresponding presetting bit, The Cloud Terrace in the image acquisition units just can be adjusted to the camera lens of respective angles while camera automatically also can adjust to corresponding focal length, at this moment image acquisition units can collect the license board information the most clearly of this presetting bit correspondence, although therefore the distance that will monitor is far, the time of capturing is very short, but the license board information that obtains all is effective information clearly.
3. floor line comprises diversion belt, prohibition parking area and lines among the present invention, and the right side of lines solid line and prohibition parking area left side are provided with dotted line, vehicle can be got over line left, the vehicle lane conversion is flexible, and the length of lines solid line is the historical maximal value of exit ramp place outgoing vehicles queue length, and vehicle all cannot be crossed in the solid line in-scope, so can effectively prevent blocking up of exit ramp place, through street that vehicle causes not according to order queuing.
Description of drawings
Fig. 1 is prior art floor line synoptic diagram;
Fig. 2 is the system chart of supervisory system of the present invention;
Fig. 3 is the synoptic diagram of floor line of the present invention;
Fig. 4 is video pictures synoptic diagram of the present invention;
Wherein, the Reference numeral among the figure is: the 1-1 track, and the 2-2 track, the 3-3 track, the 4-lines are realized, 5-lines dotted line, 6-diversion belt, 7-prohibition parking area.
Embodiment
Present embodiment provides a kind of fast road ramp mouth supervisory system, comprises floor line and video monitoring system, and described floor line comprises as shown in Figure 3:
Diversion belt: be arranged on No. 1 track, through street and be positioned at the exit ramp downstream part, forbid that vehicle sails into;
Prohibition parking area: be arranged on No. 1 track, through street and No. 2 tracks and be positioned at Entrance ramp inflow point, forbid vehicle parking;
Lines: be arranged on the through street between the adjacent lane, do not allow vehicle to cross with the solid line representative, allow vehicle to cross with the dotted line representative;
As preferred embodiment, on described lines right side, described prohibition parking area left side executes and draw a dotted line, represent vehicle and can get over line left;
Be the historical maximal value of exit ramp place outgoing vehicles queue length as the length of described lines solid line preferred embodiment; Can prevent effectively that thus the exit ramp place that brings is disorder seriously to block up on the vehicle on No. 2 tracks and No. 3 tracks is jumped the queue No. 1 track.
The system chart of described video monitoring system comprises as shown in Figure 2:
Video detecting unit: be arranged on the upstream in monitoring highway section, have automatic following function, be used for the driving vehicle track in the monitoring range is monitored; Described video detecting unit adopts the video camera with automatic following function;
Image acquisition units: comprise The Cloud Terrace and camera with presetting bit function, be used for the license board information of the vehicle of shooting illegal running; Described camera in the described image acquisition units is connected with described The Cloud Terrace, and described The Cloud Terrace drives described camera and rotates to the appointment presetting bit, and the focal length of adjusting described cam lens simultaneously guarantees that camera can collect license board information clearly; Also can adopt multiple cameras, be arranged on both sides of the road, the distance between per two video cameras is the distance that focal length of camera can photograph the clear number-plate number fixedly the time;
The monitor message processing unit: described monitor message processing unit utilizes coordinate system that the video pictures of described video detecting unit is marked, virtual detection band and virtual prohibition parking area are set in described video pictures, execute the solid line of drawing that keeps in line on described virtual detection band and the through street and overlap, execute diversion belt and the prohibition parking area drawn on described virtual prohibition parking area and the through street and overlap;
Described virtual detection band is divided into N section (N is natural number), and the length of every section virtual detection band is that described camera can photograph the distance of clear violation vehicle license plate information and be each virtual prohibition parking area numbering when fixed focal length; According to the information of the segment information of described virtual detection band and described virtual prohibition parking area the presetting bit information of image acquisition units, the presetting bit of each section virtual detection band and the respectively corresponding described image acquisition units of each virtual prohibition parking area are set;
Described monitor message processing unit comprises:
Data memory module: the corresponding relation and the numbering of each prohibition parking area and the corresponding relation of described presetting bit numbering that are used for numbering and the described presetting bit numbering of storage every section virtual detection band of described video pictures and the coordinate information of each virtual prohibition parking area, described image acquisition units presetting bit number information, every section virtual detection band;
Data reception module: be used for receiving the detected driving vehicle track of described video detecting unit at the coordinate information of video pictures;
Data comparison module: be used for the coordinate information of described driving vehicle track and the coordinate information of every section virtual detection band are compared, when the coordinate information of the coordinate information of driving vehicle and any one section virtual detection band is identical, then defines vehicle and cross solid line; The coordinate information of described driving vehicle track and the coordinate information of each virtual prohibition parking area are compared, when the coordinate coincidence factor of the coordinate information of driving vehicle and any one virtual prohibition parking area determines that then rule-breaking vehicle stops greater than 20% the time;
Presetting bit calling module: be used for the result according to described data comparison module, call the corresponding presetting bit information of corresponding virtual detection band or virtual prohibition parking area, control the license board information that described image acquisition units is gathered the illegal running vehicle.
The present invention also provides a kind of fast road ramp mouth method for supervising, comprises the steps:
A, the monitoring highway section the upstream video detecting unit and image acquisition units are set, described image acquisition units comprises The Cloud Terrace and the camera with presetting bit function;
B, coordinate system is set in the video pictures of described video detecting unit and identifies the virtual detection band and virtual prohibition parking area, execute the solid line drawn and prohibition parking area and diversion belt on described virtual detection band and described virtual prohibition parking area and the through street and overlap;
As shown in Figure 4, segmentation synoptic diagram for the virtual detection band in the video pictures of video detecting unit of the present invention, virtual prohibition parking area can adopt the profile of actual prohibition parking area to represent, it should be noted that, segmentation described in the present invention is not that described virtual detection band is disconnected, just for virtual detection band and described presetting bit information are mapped, and virtual detection band 1 shown in Figure 2 and virtual detection band 2 adopts the different line segment of thicknesses to make a distinction also just in order to illustrate that these two sections virtual detection band correspondences different presetting bit numberings, is not limited to situation shown in Figure 2 during the arranging of virtual detection band of the present invention.
C, described virtual detection band is divided into N section (N is natural number), the length of every section virtual detection band is described camera can photograph clear violation vehicle license plate information when fixed focal length distance, and the coordinate information of every section virtual detection band is stored in the described data memory module;
Be each virtual prohibition parking area numbering, the coordinate information of each virtual prohibition parking area is stored in the described data memory module;
D, according to the information of the segment information of virtual detection band and each virtual prohibition parking area the presetting bit information of image acquisition units is set, the corresponding relation that numbering and the presetting bit of the corresponding relation of every section virtual detection band numbering and presetting bit numbering and each virtual prohibition parking area are numbered is stored in the described data memory module;
As shown in table 1 is the corresponding relation of described virtual detection band numbering and virtual prohibition parking area numbering and described presetting bit numbering
Table 1
E, described video detecting unit detect the track of driving vehicle, and the coordinate of track in video pictures of driving vehicle is sent to described data reception module; After vehicle travels and enters monitoring range, described video detecting unit to the driving vehicle track from motion tracking, automatic tracking technique to track of vehicle in the prior art is very ripe, at existing Chinese patent literature CN 101149794A, all disclose the vehicle tracking method based on video technique among the CN 101251927A, but can adopt the vehicle tracking method that is not limited in the technique scheme among the present invention.And to obtain the coordinate information of vehicle driving trace in the automatic tracing process of the track of vehicle among the present invention according to the coordinate system in the video pictures, and this coordinate information is sent to described data comparison module.
Described data comparison module with described track of vehicle in video pictures coordinate and the coordinate of the coordinate of each section virtual detection band and each virtual prohibition parking area contrast one by one;
When the coordinate information of the coordinate information of driving vehicle and any one section virtual detection band is identical, then defines vehicle and cross solid line;
When the coordinate coincidence factor of the coordinate information of driving vehicle and any one virtual prohibition parking area determines that then rule-breaking vehicle stops greater than 20% the time;
When finding that overlapping is arranged, determine that rule-breaking vehicle travels and determine that the rule-breaking vehicle corresponding virtual of travelling detects band numbering or virtual prohibition parking area number information;
F, according to the comparative result of described data comparison module, the presetting bit calling module calls corresponding presetting bit information, control image acquisition units gather the image of corresponding presetting bit, obtain the license board information of illegal running vehicle clearly.
Video detecting unit described in the step a is the video camera with automatic following function, and described video camera is arranged on the upstream in monitoring highway section.
Image acquisition units described in the step a comprises The Cloud Terrace and the camera with presetting bit function;
Among the described step f, after described presetting bit calling module called the corresponding presetting bit information of virtual detection band, described The Cloud Terrace and camera lens were adjusted to automatically and are correspondingly obtained illegal activities vehicle image information clearly after presetting bit position.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (8)
1. a fast road ramp mouth supervisory system comprises floor line and video monitoring system, it is characterized in that:
Described floor line comprises:
Diversion belt: be arranged on No. 1 track, through street and be positioned at the exit ramp downstream part, forbid that vehicle sails into;
Prohibition parking area: be arranged on No. 1 track, through street and No. 2 tracks and be positioned at Entrance ramp inflow point, forbid vehicle parking;
Lines: be arranged on the through street between the adjacent lane, do not allow vehicle to cross with the solid line representative, allow vehicle to cross with the dotted line representative;
Described video monitoring system comprises video detecting unit, image acquisition units and monitor message processing unit;
Described video detecting unit: be arranged on the upstream in monitoring highway section, have automatic following function, be used for the driving vehicle track in the monitoring range is monitored;
Described image acquisition units: comprise The Cloud Terrace and camera with presetting bit function, be used for the license board information of the vehicle of shooting illegal running;
Described monitor message processing unit: utilize coordinate system that the video pictures of described video detecting unit is marked, virtual detection band and virtual prohibition parking area are set in described video pictures, execute the solid line of drawing that keeps in line on described virtual detection band and the through street and overlap, execute diversion belt and the prohibition parking area drawn on described virtual prohibition parking area and the through street and overlap;
Described virtual detection band is divided into the N section, and N is natural number, and the length of every section virtual detection band is that described camera can photograph the distance of clear violation vehicle license plate information and be each virtual prohibition parking area numbering when fixed focal length; According to the information of the segment information of described virtual detection band and described virtual prohibition parking area the presetting bit information of image acquisition units, the presetting bit of each section virtual detection band and the respectively corresponding described image acquisition units of each virtual prohibition parking area are set;
Described monitor message processing unit comprises data memory module, data reception module, data comparison module and presetting bit calling module;
Described data memory module: the corresponding relation and the numbering of each prohibition parking area and the corresponding relation of described presetting bit numbering that are used for numbering and the described presetting bit numbering of storage every section virtual detection band of described video pictures and the coordinate information of each virtual prohibition parking area, described image acquisition units presetting bit number information, every section virtual detection band;
Described data reception module: be used for receiving the detected driving vehicle track of described video detecting unit at the coordinate information of video pictures;
Described data comparison module: be used for the coordinate information of described driving vehicle track and the coordinate information of every section virtual detection band are compared, when the coordinate information of the coordinate information of driving vehicle and any one section virtual detection band is identical, then defines vehicle and cross solid line; The coordinate information of described driving vehicle track and the coordinate information of each virtual prohibition parking area are compared, when the coordinate coincidence factor of the coordinate information of driving vehicle and any one virtual prohibition parking area determines that then rule-breaking vehicle stops greater than 20% the time;
Described presetting bit calling module: be used for the result according to described data comparison module, call the corresponding presetting bit information of corresponding virtual detection band, control the license board information that described image acquisition units is gathered the illegal running vehicle.
2. fast road ramp mouth supervisory system according to claim 1 is characterized in that:
On described lines right side, described prohibition parking area left side executes and draws a dotted line, represent vehicle and can get over line left.
3. fast road ramp mouth supervisory system according to claim 1 and 2 is characterized in that:
The length of described lines solid line is the historical maximal value of exit ramp place outgoing vehicles queue length.
4. fast road ramp mouth supervisory system according to claim 3 is characterized in that:
Described video detecting unit adopts the video camera with automatic following function.
5. fast road ramp mouth supervisory system according to claim 4 is characterized in that:
Described camera in the described image acquisition units is connected with described The Cloud Terrace, and described The Cloud Terrace drives described camera and rotates to the appointment presetting bit, and the focal length of adjusting described cam lens simultaneously guarantees that camera can collect license board information clearly.
6. a fast road ramp mouth method for supervising is characterized in that: comprise the steps:
A, the monitoring highway section the upstream video detecting unit and image acquisition units are set, described image acquisition units comprises The Cloud Terrace and the camera with presetting bit function;
B, coordinate system is set in the video pictures of described video detecting unit and identifies the virtual detection band and virtual prohibition parking area, execute the solid line drawn and prohibition parking area and diversion belt on described virtual detection band and described virtual prohibition parking area and the through street and overlap;
C, described virtual detection band is divided into the N section, N is natural number, the length of every section virtual detection band is described camera can photograph clear violation vehicle license plate information when fixed focal length distance, and the coordinate information of every section virtual detection band is stored in the data memory module;
Be each virtual prohibition parking area numbering, the coordinate information of each virtual prohibition parking area is stored in the described data memory module;
D, according to the information of the segment information of virtual detection band and each virtual prohibition parking area the presetting bit information of image acquisition units is set, the corresponding relation that numbering and the presetting bit of the corresponding relation of every section virtual detection band numbering and presetting bit numbering and each virtual prohibition parking area are numbered is stored in the described data memory module;
E, described video detecting unit detect the track of driving vehicle, and the coordinate of track in video pictures of driving vehicle is sent to data reception module;
Data comparison module with described track of vehicle in video pictures coordinate and the coordinate of the coordinate of each section virtual detection band and each virtual prohibition parking area contrast one by one;
When the coordinate information of the coordinate information of driving vehicle and any one section virtual detection band is identical, then defines vehicle and cross solid line;
When the coordinate coincidence factor of the coordinate information of driving vehicle and any one virtual prohibition parking area determines that then rule-breaking vehicle stops greater than 20% the time;
When finding that overlapping is arranged, determine that rule-breaking vehicle travels and determine that the rule-breaking vehicle corresponding virtual of travelling detects band numbering or virtual prohibition parking area number information;
F, according to the comparative result of described data comparison module, the presetting bit calling module calls corresponding presetting bit information, control image acquisition units gather the image of corresponding presetting bit, obtain the license board information of illegal running vehicle clearly.
7. fast road ramp mouth method for supervising according to claim 6 is characterized in that:
Video detecting unit described in the step a is the video camera with automatic following function, and described video camera is arranged on the upstream in monitoring highway section.
8. according to claim 6 or 7 described fast road ramp mouth method for supervising, it is characterized in that:
Image acquisition units described in the step a comprises The Cloud Terrace and the camera with presetting bit function;
Among the described step f, after described presetting bit calling module called the corresponding presetting bit information of virtual detection band, described The Cloud Terrace and camera lens were adjusted to automatically and are correspondingly obtained illegal activities vehicle image information clearly after presetting bit position.
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| CN116620272A (en) * | 2022-02-10 | 2023-08-22 | 威马智慧出行科技(上海)股份有限公司 | A driving assistance control method and device thereof |
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