CN109410573B - Traffic service and management system based on road holographic perception - Google Patents
Traffic service and management system based on road holographic perception Download PDFInfo
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- CN109410573B CN109410573B CN201811246894.7A CN201811246894A CN109410573B CN 109410573 B CN109410573 B CN 109410573B CN 201811246894 A CN201811246894 A CN 201811246894A CN 109410573 B CN109410573 B CN 109410573B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
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Abstract
The invention discloses a traffic service and management system based on road holographic perception, which comprises: the three-dimensional geographic information platform is used for providing road network layer information of a lane level; the traffic situation display unit is used for presenting the urban traffic operation situation in an all-round way from a macroscopic level, a mesoscopic level and a microscopic level; the road traffic information acquisition unit is used for acquiring traffic information on a road; the traffic incident judging and researching analysis unit is used for judging whether a traffic incident exists or not according to the traffic running condition of the traffic situation display unit and sending warning information; the intersection signal timing butt-joint unit is used for acquiring intersection signal timing information; the peripheral information acquisition sharing unit is used for acquiring traffic facility information on a road network and sharing information displayed by the three-dimensional geographic information platform to the cloud server. The urban traffic information service system has the advantages of comprehensively presenting urban traffic conditions from the macroscopic level, the mesoscopic level and the microscopic level, effectively improving the urban traffic management capability and realizing the refinement of the urban traffic information service.
Description
Technical Field
The invention relates to the technical field of traffic management, in particular to a traffic service and management system based on road holographic perception.
Background
Most of the existing urban intelligent traffic command systems adopt a 2D-GIS or instrument panel form to present the overall situation of urban traffic, and when abnormal traffic conditions are displayed on a map, on one hand, traffic commanders cannot accurately master specific traffic events (or accidents) and cannot realize refined management; on the other hand, the traffic operation index currently displayed by the command center is only a relatively rough road condition given by a core guideline in a single direction of the road network, and accurate road condition information cannot be presented to a pedestrian, that is, the road condition information of a road section presented to the pedestrian cannot really reflect the actual congestion and unblocked state of the road network.
Disclosure of Invention
Aiming at the problems in the prior art, the invention mainly aims to provide a traffic service and management system based on road holographic perception, which can comprehensively present urban traffic conditions from the macroscopic, mesoscopic and microscopic levels, effectively improve the urban traffic management capability and realize the accurate attack on urban traffic illegal behaviors and the refinement of urban traffic information service.
In order to achieve the purpose, the traffic service and management system based on the road holographic perception, which is provided by the invention, comprises a three-dimensional geographic information platform, a traffic situation display unit, a road traffic flow information acquisition unit, a traffic incident research and analysis unit, an intersection signal timing docking unit and an external information acquisition and sharing unit.
And the three-dimensional geographic information platform is used for providing lane-level two-dimensional road network layer information, three-dimensional road network layer information and real panoramic information of road sections of the intersection.
The traffic situation display unit is used for presenting urban traffic operation situations in an all-around manner from a macroscopic level, a central level and a microscopic level and comprises a macroscopic display module, a central display module and a microscopic display module;
the macro display module is used for reflecting the network unblocked or jammed state of the whole urban road according to the mode of the traffic index and performing graded display on the three-dimensional geographic information platform by using different colors; the middle viewing and displaying module is used for displaying road traffic flow information on a road of the three-dimensional geographic information platform through the simulation model so as to display the traffic flow of each lane on the road on the three-dimensional geographic information platform; the microscopic display module is used for fusing the monitoring video stream of the intersection with the real scene information of the intersection to obtain the holographic traffic operation condition of the road section of the intersection and displaying the holographic traffic operation condition in the area corresponding to the three-dimensional geographic information platform;
the road traffic information acquisition unit is used for acquiring traffic information on a road;
the traffic incident judging and researching analysis unit is used for judging whether a traffic incident exists according to the traffic running conditions displayed by the central display module and the microscopic display module and sending alarm information in time;
the intersection signal timing butt-joint unit is used for butt-joint with the urban signal timing system, acquiring signal timing information and sending the timing information to the middle display module;
and the peripheral information acquisition sharing unit is used for acquiring traffic facility information on a road network, displaying the three-dimensional geographic information platform, and providing a data port to share the information displayed by the three-dimensional geographic information platform to the cloud server for external personnel to check.
In the embodiment of the invention, the three-dimensional geographic information platform is constructed by a Skyline engine.
In the embodiment of the invention, the middle viewing and displaying module can also be used for reflecting the unblocked or jammed state of each lane of the road section according to the mode of the traffic index and carrying out hierarchical display on the three-dimensional geographic information platform by using different colors.
In the embodiment of the invention, the microscopic intersection display module adopts a virtual-real fusion technology based on projection texture mapping to fuse the monitoring video stream of the intersection with the real scene information of the intersection.
In the embodiment of the invention, the intersection signal timing docking unit sends the intersection timing information to the middle viewing and displaying module in a red light countdown mode.
In the embodiment of the invention, the road traffic flow information acquisition unit comprises a plurality of monitoring cameras which are arranged at intervals along the road direction, and the distance between every two adjacent monitoring cameras is 100 meters; an AI intelligent analysis module is arranged in each monitoring camera and used for extracting traffic flow information in pictures or video streams collected by the monitoring cameras.
In an embodiment of the present invention, the traffic information includes position, size, shape, color, license plate number, and speed information of the vehicle.
In the embodiment of the invention, the road traffic information acquisition unit is connected with the intersection signal timing butt joint unit so as to send the traffic information to the urban signal timing system through the intersection signal timing butt joint unit, and the urban signal timing system optimizes the intersection signal timing according to the traffic information.
According to the technical scheme, the collected traffic index information of the whole road network, the traffic flow information of each lane of the road and the fusion information of the monitoring video flow and the real scene information of the intersection are displayed on the three-dimensional geographic information platform in a layered mode, and the urban traffic operation situation is displayed from three different levels of macro → meso → micro, so that a traffic manager can conveniently and quickly check the urban traffic operation condition, the traffic manager can conveniently manage the urban traffic from different dimensions, the efficiency of urban traffic management is improved, and the refinement of urban traffic information service is realized. Meanwhile, the system provided by the invention is also provided with an external information acquisition and sharing unit, so that external personnel (such as travelers) can acquire information displayed by the three-dimensional geographic information platform from the cloud, check road traffic running conditions before and during travel at any time, reasonably select travel routes and time and improve the convenience of travel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic block diagram of an embodiment of a traffic service and management system based on holographic road sensing according to the present invention;
FIG. 2 is a functional block diagram of a traffic situation presentation unit;
the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The invention provides a traffic service and management system based on road holographic sensing.
Referring to fig. 1, fig. 1 is a schematic block diagram of an embodiment of a traffic service and management system based on holographic road sensing of the present invention, and fig. 2 is a schematic block diagram of a traffic situation display unit.
As shown in fig. 1-2, in the embodiment of the present invention, the traffic service and management system based on road holographic sensing includes a three-dimensional geographic information platform 100, a traffic situation display unit 200, a road traffic information obtaining unit 300, a traffic incident research and analysis unit 400, an intersection signal timing docking unit 500, and an external information collecting and sharing unit 600.
The three-dimensional geographic information platform 100 is configured to provide lane-level two-dimensional road network layer information and three-dimensional road network layer information, and real panoramic information of road sections at intersections.
In the embodiment of the present invention, the three-dimensional geographic information platform 100 is an urban real-scene three-dimensional geographic information platform constructed by acquiring a terrain map and urban element data by using an aerial photography technology, and acquires, stores, manages, calculates, analyzes and displays various types of data related to traffic based on a sky engine, and has lane-level road network layer information, so that switching between two-dimensional and three-dimensional vision can be realized. The two-dimensional map mainly focuses on displaying the urban traffic macroscopic situation; the three-dimensional map focuses on the microscopic viewing of the traffic running condition, provides a better man-machine interaction interface for a traffic manager from the view angle of a real-scene global space, and realizes the what you see is what you get of the road traffic condition.
The traffic situation display unit 200 is used for presenting urban traffic operation situations in all directions from a macro level, a middle level and a micro level, and comprises a macro display module 210, a middle display module 220 and a micro display module 230. The macro display module 210 is used for reflecting the network unblocked or congested state of the whole urban road according to the mode of the traffic index, and performing graded display on the three-dimensional geographic information platform 100 by using different colors; the center-view display module 220 is used for displaying road vehicle and traffic flow information on the road of the three-dimensional geographic information platform 100 through the simulation model so as to display the traffic flow of each lane on the road on the three-dimensional geographic information platform 100; the microscopic display module 230 is configured to fuse the monitoring video stream of the intersection with the real-scene information of the intersection to obtain a holographic traffic operation status of the road segment of the intersection, and display the holographic traffic operation status in an area corresponding to the three-dimensional geographic information platform 100.
In the embodiment of the present invention, the way of displaying the traffic operation condition by the macro display module 210 is the same as the conceptual index value of comprehensively reflecting the unobstructed or congested road network by using the traffic index in the current navigation map APP, which is equivalent to digitizing the congestion condition of the road network and displaying the congestion condition by different colors in a grading manner. The central display module 220 represents the actual traffic flow of each lane in the road network by using the vehicles of the simulation model based on the actual traffic flow, and the user can visually see the traffic operation condition of the road network. Meanwhile, in another embodiment, the mesoscopic module may also display the traffic information of each lane of the road in different colors in a hierarchical manner in the same manner as the macroscopic display module 210. The microscopic display module 230 is mainly used to provide the what-you-see-is-what-you-get holographic traffic behavior. The microscopic display module 230 is provided with a standard video access interface for accessing a surveillance video of the intersection and a video of the intersection shot by the unmanned aerial vehicle, and fuses a surveillance video stream and a video surveillance in a corresponding surveillance range in the three-dimensional geographic information platform 100 by adopting a virtual-real fusion technology based on projection texture mapping, so as to restore the real traffic operation condition of the road section of the intersection. In addition, in this embodiment, the microscopic display module 230 further employs a video splicing technology to complete video splicing, so as to implement seamless splicing and fusion of road network full-coverage video monitoring and 3D-GIS.
The road traffic information acquiring unit 300 is configured to acquire traffic information on a road. In the embodiment of the present invention, the road traffic information obtaining unit 300 includes a plurality of monitoring cameras arranged at intervals along the road direction, and the distance between adjacent monitoring cameras is 100 meters. An AI intelligent analysis module is arranged in each monitoring camera and used for extracting traffic flow information in pictures or video streams collected by the monitoring cameras, wherein the traffic flow information comprises the position (longitude and latitude information), the size, the shape, the color, the license plate number, the speed information and the like of a vehicle. The traffic operation condition presentation of the mesoscopic layer can be realized by setting a monitoring camera at intervals of 100 meters in a road network, photographing or recording each vehicle passing through a monitoring area of the monitoring camera, extracting information such as the position (longitude and latitude information), the size, the shape, the color, the license plate number, the speed and the like of each vehicle in a snapshot picture or a monitoring video stream through an AI intelligent analysis module arranged in the monitoring camera, then sending the traffic information to a simulation model of the mesoscopic display module 220, and restoring the traffic information on a 2D/3D map of the lane-level road network through the simulation model.
The traffic incident research and analysis unit 400 is configured to determine whether a traffic incident exists according to the traffic operation conditions displayed by the central display module 220 and the microscopic display module 230, and send warning information. In the embodiment of the present invention, if two or more vehicles with zero speed or close distance appear on a road shown by the middle viewing and displaying module 220 and the maintaining time exceeds the set threshold, a suspected traffic incident occurrence alarm is sent out through the traffic incident research and analysis unit 400, so as to remind the traffic manager to check and monitor the actual traffic situation displayed by the microscopic displaying module 230 in the area in time, so as to determine whether a traffic incident (accident) occurs; on a microscopic level, if the monitoring camera detects that there is a traffic incident in the monitored area, the traffic incident research and analysis unit 400 directly sends an alarm message to remind the traffic manager to check the specific traffic condition in time.
The intersection signal timing docking unit 500 is configured to dock with the urban signal timing system 700, acquire signal timing information, send the timing information to the central display module 230 in a red light countdown manner, and directly display the timing information in an intersection area by the central display module 230, so as to provide information support for a traffic manager to find an intersection congestion cause. In the embodiment of the present invention, the lane-level traffic information acquired by the road traffic information acquiring unit 300 may be provided to the urban signal timing system 700 through the WebService interface for timing optimization, so that the traffic service and management system may pre-enter key vehicles (guard vehicles, ambulances, fire trucks) performing special tasks, and implement real-time tracking of special vehicles and visualization of green wave coordination control from the perspective level. Meanwhile, at the middle and micro level, the intersection signal timing butt joint unit 500 is also in butt joint linkage with the gate and the electronic police system, when the gate and the electronic police system find illegal vehicles, the gate and the electronic police system return license plate information in a WebService interface mode, so that the system can perform cross-video and cross-region real-time tracking on the illegal vehicles, and accurate interception and striking can be realized.
The peripheral information collecting and sharing unit 600 is configured to collect traffic facility information on a road network, display the three-dimensional geographic information platform 100, and provide a data port to share information displayed by the three-dimensional geographic information platform 100 to a cloud server for external personnel to view. For example, sharing data to car navigation service providers supports future unmanned driving; opening data information to urban travelers, and allowing the travelers to see traffic running conditions before and during traveling at any time and any place; the method is provided for urban planning workers, decision basis is provided for intelligent traffic planning, simulated site reconnaissance is provided for project construction design, and auxiliary decision is provided for urban traffic planning.
According to the technical scheme, the collected traffic index information of the whole road network, the vehicle flow information of each lane of the road and the fusion information of the monitoring video flow and the real scene information of the intersection are displayed on the three-dimensional geographic information platform 100 in a layered mode, and the urban traffic operation situation is displayed from three different levels of macro → meso → micro, so that a traffic manager can conveniently and quickly check the urban traffic operation condition, the traffic manager can conveniently manage the urban traffic from different dimensions, the efficiency of urban traffic management is improved, and the refinement of urban traffic information service is realized. Meanwhile, the system provided by the invention is also provided with a peripheral information acquisition sharing unit 600, so that external personnel (such as travelers) can acquire information displayed by the three-dimensional geographic information platform 100 from the cloud end, check road traffic running conditions before and during travel at any time, reasonably select travel routes and time and improve the convenience of travel.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A traffic service and management system based on road holographic perception is characterized by comprising:
the three-dimensional geographic information platform is used for providing lane-level two-dimensional road network layer information, three-dimensional road network layer information and real panoramic information of road sections of intersections;
the traffic situation display unit is used for presenting urban traffic operation situations in an all-around manner from a macroscopic level, a central level and a microscopic level and comprises a macroscopic display module, a central display module and a microscopic display module;
the macro display module is used for reflecting the network unblocked or jammed state of the whole urban road according to the mode of the traffic index and performing graded display on the three-dimensional geographic information platform by using different colors; the middle viewing and displaying module is used for displaying road traffic flow information on a road of the three-dimensional geographic information platform through the simulation model so as to display the traffic flow of each lane on the road on the three-dimensional geographic information platform; the microscopic display module is used for fusing the monitoring video stream of the intersection with the real scene information of the intersection to obtain the holographic traffic operation condition of the road section of the intersection and displaying the holographic traffic operation condition in the area corresponding to the three-dimensional geographic information platform;
the road traffic information acquisition unit is used for acquiring traffic information on a road;
the traffic incident judging and researching analysis unit is used for judging whether a traffic incident exists according to the traffic running conditions displayed by the central display module and the microscopic display module and sending alarm information in time;
the intersection signal timing butt-joint unit is used for butt-joint with the urban signal timing system, acquiring signal timing information and sending the timing information to the middle display module;
and the peripheral information acquisition sharing unit is used for acquiring traffic facility information on a road network, displaying the three-dimensional geographic information platform, and providing a data port to share the information displayed by the three-dimensional geographic information platform to the cloud server for external personnel to check.
2. The traffic service and management system based on holographic road perception according to claim 1, wherein the three-dimensional geographic information platform is constructed by a Skyline engine.
3. The traffic service and management system based on holographic road perception according to claim 1, wherein the central display module is further used for reflecting the state of smoothness or congestion of each lane of the road section in a mode of traffic index and performing hierarchical display on the three-dimensional geographic information platform by using different colors.
4. The traffic service and management system based on holographic road perception according to claim 1, wherein the microscopic intersection display module adopts a virtual-real fusion technology based on projection texture mapping to fuse the monitoring video stream of the intersection with the real scene information of the intersection.
5. The traffic service and management system based on holographic road perception according to claim 1, wherein the intersection signal timing docking unit transmits intersection timing information to the central display module in a red light countdown manner.
6. The traffic service and management system based on holographic road perception according to claim 1, wherein the road traffic information obtaining unit includes a plurality of monitoring cameras arranged at intervals along a road direction, and a distance between adjacent monitoring cameras is 100 meters; an AI intelligent analysis module is arranged in each monitoring camera and used for extracting traffic flow information in pictures or video streams collected by the monitoring cameras.
7. The traffic service and management system based on holographic road perception according to claim 6, wherein the traffic flow information includes position, size, shape, color, license plate number and speed information of vehicles.
8. The traffic service and management system based on holographic road perception according to any one of claims 1 to 7, wherein the road traffic information obtaining unit is connected with the intersection signal timing docking unit to send traffic information to the city signal timing system through the intersection signal timing docking unit, and the city signal timing system optimizes the intersection signal timing according to the traffic information.
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