CN117058872A - Method, system and storage medium for publishing information on expressway - Google Patents
Method, system and storage medium for publishing information on expressway Download PDFInfo
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Abstract
The application provides a method, a system and a storage medium for publishing expressway information, wherein the method comprises the following steps: the method comprises the steps that a road section monitoring center acquires expressway information to be released in real time, wherein the expressway information comprises event occurrence positions and event types; acquiring road condition information of the event occurrence position monitored by a road section monitoring center; the road section monitoring center traces and determines a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on road condition information and/or event type at the event occurrence position; and transmitting the expressway information to a road side unit in the target transmission range so as to enable the road side unit equipment to issue the expressway information. The method and the system can more accurately determine the road side units in the transmission range of the expressway information target, and provide better information release service for expressway passing vehicles.
Description
Technical Field
The application relates to the technical field of expressway information release, in particular to an expressway information release method, an expressway information release system and a storage medium.
Background
In the current expressway intelligent system, a portal frame of an ETC system and a Road Side Unit (RSU) positioned on the portal frame are widely built in the whole network, and the system has a wide user foundation and great development and application potential. And the expressway is also provided with a road side sensing system, so that the expressway can be monitored by dividing sections.
However, an intelligent information release method based on an ETC system is lacking in the market at present so as to fully utilize the advantages of the ETC system, and accurate access of users in the influence range of traffic events occurring in a certain place of a highway is difficult to realize.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method and system for highway information distribution to obviate or ameliorate one or more of the disadvantages of the prior art.
One aspect of the present application provides a method for highway information distribution, comprising the steps of:
the method comprises the steps that a road section monitoring center acquires expressway information to be released in real time, wherein the expressway information comprises event occurrence positions and event types;
acquiring road condition information of the event occurrence position monitored by a road section monitoring center;
the road section monitoring center traces and determines a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on road condition information and/or event type at the event occurrence position;
and transmitting the expressway information to a road side unit in the target transmission range so as to enable the road side unit equipment to issue the expressway information.
In some embodiments of the present application, before the road segment monitoring center acquires the highway information to be published in real time, the method further includes: the road section monitoring center receives the expressway perception information from the road side perception subsystem in real time, recognizes expressway events occurring in the road section range based on the expressway perception information, and generates expressway information to be distributed, which corresponds to the expressway events; the road side sensing subsystem is configured on the way of the expressway and is in network connection with the road section monitoring center, and the road side sensing subsystem comprises multiple types of radars, cameras, meteorological sensors and flow controllers.
In some embodiments of the present application, a road section monitoring center located on each road section of the highway is connected to the cloud platform, and before the road section monitoring center acquires the highway information to be published in real time, the method further includes: and the road section monitoring center receives the expressway information to be issued from the cloud platform in real time.
In some embodiments of the present application, the step of determining, by the road segment monitoring center, a road side unit within the target transmission range of the highway information from the event occurrence position to upstream in the traveling direction of the highway based on the road condition information and/or the event type at the event occurrence position includes: the road section monitoring center determines an information release range matching strategy based on road condition information and/or event types at the event occurrence position; the information release range matching strategy comprises the number of the road side units which are respectively preset under the conditions of different road condition information and/or event types and trace from the event occurrence position to the upstream of the expressway travelling direction; and determining a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on the information release range matching strategy, wherein the information release range matching strategy comprises a fixed distance strategy, a dynamic distance strategy and a single portal strategy.
In some embodiments of the present application, the road condition information of the event occurrence location is classified into three types of severe congestion, slight congestion and road smoothness, and the event type of the highway information includes a security class, an efficiency class and an information service class; the expressway information of the safety class comprises traffic accident early warning, severe traffic environment early warning, ramp diversion early warning and accident multiple places early warning; the expressway information of the efficiency class comprises front congestion reminding, special vehicles, priority traffic reminding and vehicle scheduling information; the expressway information of the information service class includes a front ramp notification, a front service area notification, a high-speed toll gate notification, and a high-speed fork notification.
In some embodiments of the present application, when the information distribution range matching policy is a fixed distance policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location to upstream in the expressway traveling direction based on the information distribution range matching policy includes: and tracing a fixed number of portals from the event occurrence position to the upstream of the expressway travelling direction to serve as an expressway information target transmission range, so as to determine roadside units in the expressway information target transmission range.
In some embodiments of the present application, when the information distribution range matching policy is a dynamic distance policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location to upstream in the expressway traveling direction based on the information distribution range matching policy includes: carrying out event severity classification based on road condition information and/or event types of event occurrence positions, wherein the event severity classification is divided into a preset number, and each event severity classification corresponds to the number of portal frames traced from the event occurrence positions to the upstream of the expressway travelling direction; and tracing a corresponding number of portals from the event occurrence position to the upstream of the expressway travelling direction based on the event severity grade to serve as an expressway information target transmission range, so as to determine roadside units in the expressway information target transmission range.
In some embodiments of the present application, when the information distribution range matching policy is a single portal policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location to upstream in the expressway traveling direction based on the information distribution range matching policy includes: and only tracing one portal frame from the event occurrence position to the upstream of the expressway travelling direction as an expressway information target transmission range, so as to determine a roadside unit in the expressway information target transmission range.
Another aspect of the present application provides a system for highway information distribution, comprising a processor and a memory, said memory having stored therein computer instructions for executing the computer instructions stored in said memory, the system implementing the steps of the method according to any of the above embodiments when said computer instructions are executed by the processor.
Another aspect of the application provides a computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of the method according to any of the above embodiments.
The method and the system for publishing the expressway information can accurately determine the roadside unit in the expressway information target sending range based on the event occurrence position and the event type contained in the expressway information to be published, which are acquired in real time, so that the situation that the vehicle receives too much irrelevant information due to insufficient information pushing, and the vehicle ignores important information related to the vehicle is avoided, and better information publishing service is provided for expressway passing vehicles.
Additional advantages, objects, and features of the application will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present application are not limited to the above-described specific ones, and that the above and other objects that can be achieved with the present application will be more clearly understood from the following detailed description.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the application. In the drawings:
fig. 1 is a schematic diagram of an information distribution flow according to an embodiment of the application.
Fig. 2 is a schematic diagram of an ETC system for information distribution according to an embodiment of the present application.
Fig. 3 is a schematic diagram of an information distribution range matching scenario in an embodiment of the present application.
Fig. 4 is a schematic diagram of a system structure for information distribution according to another embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following embodiments and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present application more apparent. The exemplary embodiments of the present application and the descriptions thereof are used herein to explain the present application, but are not intended to limit the application.
It should be noted here that, in order to avoid obscuring the present application due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present application are shown in the drawings, while other details not greatly related to the present application are omitted.
It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It is also noted herein that the term "coupled" may refer to not only a direct connection, but also an indirect connection in which an intermediate is present, unless otherwise specified.
Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.
In order to more fully utilize the advantages of an ETC system and improve the matching accuracy of expressway information release, the application provides an expressway information release method and system.
Fig. 1 is a schematic flow chart of a method for publishing information on expressways, which can be executed by a road segment monitoring center, wherein coverage areas of the road segment monitoring centers are overlapped. As shown in fig. 1, the method comprises the steps of:
step S110: the road section monitoring center acquires the information of the expressway to be released in real time, namely the information of the expressway to be released. Wherein the highway information includes an event occurrence position and an event type.
In some embodiments of the present application, the highway information further includes an event occurrence time.
Step S120: and acquiring road condition information at the event occurrence position monitored by the road section monitoring center.
The traffic information includes congestion levels around the event occurrence location, and in particular, in an embodiment of the present application, the traffic information at the event occurrence location may be classified into three types of severe congestion, slight congestion, and road smoothness. In an embodiment of the present application, the road section monitoring center analyzes the highway sensing information collected by the road side sensing subsystem to obtain the congestion degree around the event occurrence position, and the assessment of the congestion degree can be divided by the congestion length of the motorcade, for example, more than 300 meters is serious congestion, 0-300 meters is slight congestion, and other conditions are road smoothness. In still another embodiment of the present application, the road segment monitoring center may send a road condition request carrying the event occurrence position to the road side monitoring subsystem, receive a feedback result from the road side monitoring subsystem, and analyze and obtain the road condition information of the event occurrence position based on the feedback result of the road side monitoring subsystem.
Step S130: and the road section monitoring center traces and determines a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on the road condition information and/or the event type at the event occurrence position.
Specifically, step S130 includes:
step S131: the road section monitoring center determines an information release range matching strategy based on road condition information and/or event types at the event occurrence position; the information release range matching strategy is the number of road side units which are respectively preset aiming at different road condition information and/or event types and trace from the event occurrence position to the upstream of the expressway travelling direction; the information release matching strategy comprises a fixed distance strategy, a dynamic distance strategy and a single portal strategy.
Step S132: and determining a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on an information release range matching strategy.
The portal and the road side units are in one-to-one correspondence, so that the matching of the portal by the information release range matching strategy can be equivalently replaced by the matching of the road side units.
Step S140: and transmitting the expressway information to a road side unit in the target transmission range so as to enable the road side unit equipment to issue the expressway information.
In step S140, the road side units are connected to the road section monitoring center through an optical fiber network, the road side units are used for issuing highway information through broadcasting and ETC special short-range communication, the broadcasting is that the road side units send information by broadcasting addresses, the vehicle-mounted units are faced to the vehicle-mounted units, and communication application replied by the vehicle-mounted units is not needed, the ETC special short-range communication (Dedicated Short Range Communication, DSRC) is short-range communication in a 5.8GHz special frequency band, and the road monitoring center can provide organic connection for running vehicles and roads, so that accurate and reliable bidirectional transmission of images, voices and data in a small range is realized. .
The method for publishing the expressway information can accurately determine the road side unit in the expressway information target sending range based on the event occurrence position and the event type contained in the expressway information to be published, which are acquired in real time, so that the situation that the vehicle receives too much irrelevant information due to insufficient information pushing, and the vehicle ignores important information related to the vehicle is avoided, and better information publishing service is provided for expressway passing vehicles.
For the expressway information acquisition source in step S110, the road section monitoring center generates expressway information through expressway sensing information from the road side sensing subsystem, and the expressway information is acquired from the cloud platform.
In an embodiment of the present application, before the step of obtaining, in real time, the highway information to be published in the road segment monitoring center in step S110, the method further includes: the method comprises the steps that a road section monitoring center receives expressway perception information from a road side perception subsystem in real time, recognizes expressway events occurring in a road section range based on the expressway perception information, and generates expressway information to be distributed, which corresponds to the expressway events; the road side sensing subsystem is configured on the way of the expressway and is in network connection with the road section monitoring center, and the road side sensing subsystem comprises multiple types of radars, cameras, meteorological sensors and flow controllers. The road side perception subsystem can be used for detecting traffic flow conditions and abnormal traffic events, such as vehicle reverse running, pedestrian crossing into a motor vehicle lane, illegal parking, traffic jam, traffic accidents, dangerous meteorological conditions (crosswind, group fog, storm), road construction and the like, and various sensors such as cameras, radars, meteorological sensors and the like can be used. Further, in some embodiments of the present application, the method further comprises: and the road section monitoring center is used for counting the road condition information of each position in the road section range based on the expressway perception information, is internally provided with a program for analyzing the expressway perception information (images, videos or infrared photos and the like), and is used for analyzing and counting to obtain the road condition information.
It should be noted that, on the actual expressway at present, the density of the roadside perception subsystem (RSS) is generally greater than the distribution density of the roadside units (RSUs), for example, the pillars are constructed at a spacing of 500 meters or 1000 meters, the mounting cameras, radars and the like are installed on the pillars, and the ETC portal is often set to be one of 4-5 kilometers, and the roadside perception subsystem and the roadside units do not have a strict corresponding relationship. A road side perception subsystem (RSS) is a system for collecting road environment information and interacting with vehicles through wireless communication. The road side perception subsystem mainly comprises the following devices: radar sensor: for measuring vehicle distance, speed and direction; a camera head: for identifying vehicles, pedestrians, and other road users; laser radar sensor: for generating a 3D point cloud for modeling of the surroundings of the vehicle; a wireless communication device: for communication with the vehicle. The road side perception subsystem can realize the following functions by collecting road environment information: traffic flow monitoring: traffic flow can be monitored, traffic information can be updated in real time, and traffic navigation and road condition early warning can be provided for vehicles; intelligent traffic management: the system can interact with traffic signal lamps to realize traffic signal optimization and improve traffic efficiency. The road side perception subsystem is an important component of the vehicle-road cooperative system, and can provide safe, efficient and comfortable traffic traveling experience for vehicles. In addition, the roadside awareness subsystem also includes some additional features: are typically installed on the roadside, above or beside the roadway; the communication frequency is typically 5.9GHz; the communication distance is typically hundreds of meters.
In yet another embodiment of the present application, before the step of obtaining the highway information to be published in real time by the road segment monitoring center in step S110, the method further includes: and the road section monitoring center receives the expressway information to be issued from the cloud platform in real time. The expressway information to be issued from the cloud platform can be manually input or from other road section monitoring centers. The cloud platform provides an access interface for receiving the expressway information to be distributed of a preset information distribution range input by people. All road section monitoring centers are commonly connected to the cloud platform to realize other functions, such as receiving information to be distributed, which is input by people from the cloud platform. The cloud platform is a big data collection center, can realize traffic data collection and analysis, supports equipment state management, traffic event management, big data analysis, traffic scheduling information release and the like, and can be built based on the existing traffic cloud control platform.
Fig. 2 is a schematic diagram of an ETC system for information distribution according to an embodiment of the present application. The road section monitoring center 100 is connected with the road side unit 200 through a network, the road section monitoring center 100 transmits the expressway information to be published to the road side unit 200, the road side unit 200 transmits the information to the vehicle-mounted unit 300 in the coverage area thereof through broadcasting and ETC special short-range communication, wherein the road section monitoring center 100 receives the expressway information to be published which is manually input from the cloud platform 500, or receives the expressway perception information from the road side perception subsystem and identifies events occurring in the monitored road section range of the expressway, and the expressway information to be published is generated. The road side sensing subsystem comprises a radar, a camera, a meteorological sensor, a flow controller and other sensing equipment.
In an embodiment of the present application, as shown in fig. 4, after a user of a highway event confirmation party confirms that an event occurs, the user terminal (such as a PC or a mobile phone) may upload the highway event and related information to the cloud platform, and the road section monitoring center or the cloud platform may analyze the highway event and related information to generate highway information to be released, and the cloud platform may send the highway information to the road section monitoring center corresponding to the event occurrence position after generating the highway information to be released to release the highway information.
In step S131 of an embodiment of the present application, the road condition information is classified into three types of severe congestion, slight congestion and road smoothness, and the step of determining the information distribution range matching policy based on the road condition information at the event occurrence position includes: a single portal strategy is selected in case of clear road, a fixed distance strategy is selected in case of slight congestion, the fixed distance range selects a preset number of portals from the event occurrence position to trace 3 portals upstream in the travelling direction of the expressway, a dynamic portal strategy is selected in case of severe congestion, the specific strategy is optionally accumulated over time on the basis of a reference number of portals, when the state of severe congestion continues to be full and the preset number of portals is increased, optionally the reference number is 3, and the number of steps is 1, but the application is not limited thereto.
In step S131 of an embodiment of the present application, the event types are divided into a security class, an efficiency class, and an information service class, and the step of determining an information distribution range matching policy based on the event types includes: for the expressway information of the security class, selecting a fixed distance strategy; selecting a dynamic distance strategy for the expressway information of the efficiency class; for highway information of the information service class, a single portal policy is selected.
In step S131 of an embodiment of the present application, road condition information is classified into three types of severe congestion, slight congestion and road smoothness, event types are classified into a security type, an efficiency type and an information service type, and the step of determining an information distribution range matching policy based on the event types includes: for the conditions of safety class, efficiency class and information service class and smooth road, a single portal strategy is used; for the security class and the efficiency class, and in the case of slight congestion, a fixed distance strategy is used; under other conditions, a dynamic distance strategy is adopted, a congestion coefficient is set for road condition information (a basic value is preset, for example, the value is 3), a type coefficient is divided for different event types (for example, the security class is 1.3, the efficiency class is 1.8, the information service class is 1), and the multiplication of the congestion coefficient and the type coefficient is the number of the portals from the event occurrence position to the upstream of the expressway in the travelling direction.
Specifically, the subdivision for event types is as follows: the safety expressway information comprises traffic accident early warning, severe traffic environment early warning, ramp diversion early warning and accident multiple-place early warning; the expressway information of the efficiency class comprises front congestion reminding, special vehicles, priority traffic reminding and vehicle scheduling information; the expressway information of the information service class includes a front ramp notification, a front service area notification, a high-speed toll gate notification, and a high-speed fork notification. It should be noted that, in the field of highway information service, there is no general standard for event types, so only one sample for event type classification is listed as a reference in the present application.
In an embodiment of the present application, when the information distribution range matching policy in step S132 is a fixed distance policy, the step of determining, based on the information distribution range matching policy, a roadside unit within the expressway information target transmission range from the event occurrence position to the upstream in the expressway traveling direction includes: and tracing a fixed number of portals from the event occurrence position to the upstream of the expressway travelling direction to serve as an expressway information target transmission range, so as to determine roadside units in the expressway information target transmission range.
A typical safety scenario is that when a traffic accident occurs on a highway, in order to avoid a collision on one hand, and in order to avoid forming a congestion state on the other hand, it is necessary to predict that an upstream vehicle is approaching and does not collide, if conditions allow the upstream vehicle to leave the highway, the event occurrence position can be notified by N number of door frames from front to back based on a fixed distance policy, and the position and the accident type of the traffic accident are sent to a road side unit located on N number of door frames from front to back of the wind direction of the incoming vehicle, where N is a preset value.
In an embodiment of the present application, when the information distribution range matching policy in step S132 is a dynamic distance policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location to the upstream in the expressway traveling direction based on the information distribution range matching policy includes: carrying out event severity classification based on road condition information and/or event types of event occurrence positions, wherein the event severity classification is divided into a preset number, and each event severity classification corresponds to the number of portal frames traced from the event occurrence positions to the upstream of the expressway travelling direction; and tracing a corresponding number of portals from the event occurrence position to the upstream of the expressway travelling direction based on the event severity grade to serve as an expressway information target transmission range, so as to determine roadside units in the expressway information target transmission range.
In an embodiment of the present application, when the information distribution range matching policy in step S132 is a single portal policy, the step of determining, based on the information distribution range matching policy, a roadside unit within the expressway information target transmission range from the event occurrence position to the upstream in the expressway traveling direction includes: and only tracing one portal frame from the event occurrence position to the upstream of the expressway travelling direction as an expressway information target transmission range, so as to determine a roadside unit in the expressway information target transmission range.
Fig. 3 is a schematic diagram of an information distribution range matching scenario in an embodiment of the present application. The expressway event occurs at x located near the roadside unit 0, at which time the roadside sensing subsystem 0 detects the relevant picture and transmits it back to the road section monitoring center, which analyzes the picture content to determine that the expressway event occurs at the location and the type thereof, and generates expressway information, determines the location to be transmitted to, i.e., the roadside unit to be transmitted to, based on the content contained in the expressway information, for example, the expressway information to be issued to the roadside unit 1 in the case of a single portal policy, the expressway information to be issued to the roadside unit 1-3 in the case of a fixed distance policy, and the expressway information to be issued to the roadside unit 1-3 in the case of a dynamic distance policy, and to the roadside unit 4 even further locations over time.
Correspondingly, the application also provides a system for issuing highway information, which comprises a computer device, wherein the computer device comprises a processor and a memory, the memory is stored with computer instructions, the processor is used for executing the computer instructions stored in the memory, and the system realizes the steps of the method when the computer instructions are executed by the processor.
The method and the system for publishing the expressway information can be based on event occurrence positions and event types contained in the expressway information to be published, which are acquired in real time, and the method and the system enumerate the information publishing range matching strategies aiming at different scenes, can pointedly and accurately push the expressway information to the relevant roadside units, accurately determine the roadside units in the expressway information target sending range, avoid the situation that vehicles receive excessive irrelevant information caused by inaccurate information pushing, cause the vehicles to ignore relevant important information, and provide better information publishing services for expressway passing vehicles.
Embodiments of the present application also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as described above. The computer readable storage medium may be a tangible storage medium such as Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, floppy disks, hard disk, a removable memory disk, a CD-ROM, or any other form of storage medium known in the art.
Those of ordinary skill in the art will appreciate that the various illustrative components, systems, and methods described in connection with the embodiments disclosed herein can be implemented as hardware, software, or a combination of both. The particular implementation is hardware or software dependent on the specific application of the solution and the design constraints. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave.
It should be understood that the application is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, after appreciating the spirit of the present application.
In this disclosure, features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, and various modifications and variations can be made to the embodiments of the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A method for highway information distribution, the method comprising the steps of:
the method comprises the steps that a road section monitoring center acquires expressway information to be released in real time, wherein the expressway information comprises event occurrence positions and event types;
acquiring road condition information of the event occurrence position monitored by a road section monitoring center;
the road section monitoring center traces and determines a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on road condition information and/or event type at the event occurrence position;
and transmitting the expressway information to a road side unit in the target transmission range so as to enable the road side unit equipment to issue the expressway information.
2. The method of claim 1, wherein before the road segment monitoring center acquires the highway information to be published in real time, the method further comprises:
the road section monitoring center receives the expressway perception information from the road side perception subsystem in real time, recognizes expressway events occurring in the road section range based on the expressway perception information, and generates expressway information to be distributed, which corresponds to the expressway events; the road side sensing subsystem is configured on the way of the expressway and is in network connection with the road section monitoring center, and the road side sensing subsystem comprises multiple types of radars, cameras, meteorological sensors and flow controllers.
3. The method of claim 1, wherein a road segment monitoring center located on each road segment of the highway is connected to the cloud platform, and the method further comprises, before the road segment monitoring center acquires the highway information to be published in real time:
and the road section monitoring center receives the expressway information to be issued from the cloud platform in real time.
4. The method according to claim 1, wherein the step of the road segment monitoring center determining a road side unit within the transmission range of the expressway information target from the event occurrence position back upstream in the expressway traveling direction based on the road condition information and/or the event type at the event occurrence position, comprises:
the road section monitoring center determines an information release range matching strategy based on road condition information and/or event types at the event occurrence position; the information release range matching strategy comprises the number of the road side units which are respectively preset under the conditions of different road condition information and/or event types and trace from the event occurrence position to the upstream of the expressway travelling direction;
and determining a road side unit in the expressway information target sending range from the event occurrence position to the upstream of the expressway travelling direction based on the information release range matching strategy, wherein the information release range matching strategy comprises a fixed distance strategy, a dynamic distance strategy and a single portal strategy.
5. The method of claim 4, wherein the traffic information of the event occurrence location is classified into three types of severe congestion, slight congestion and clear road, and the event type of the highway information includes a security class, an efficiency class and an information service class;
the expressway information of the safety class comprises traffic accident early warning, severe traffic environment early warning, ramp diversion early warning and accident multiple places early warning; the expressway information of the efficiency class comprises front congestion reminding, special vehicles, priority traffic reminding and vehicle scheduling information; the expressway information of the information service class includes a front ramp notification, a front service area notification, a high-speed toll gate notification, and a high-speed fork notification.
6. The method of claim 4, wherein when the information distribution range matching policy is a fixed distance policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location back upstream in the expressway travel direction based on the information distribution range matching policy comprises:
and tracing a fixed number of portals from the event occurrence position to the upstream of the expressway travelling direction to serve as an expressway information target transmission range, so as to determine roadside units in the expressway information target transmission range.
7. The method of claim 4, wherein when the information distribution range matching policy is a dynamic distance policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location back upstream in the expressway travel direction based on the information distribution range matching policy comprises:
carrying out event severity classification based on road condition information and/or event types of event occurrence positions, wherein the event severity classification is divided into a preset number, and each event severity classification corresponds to the number of portal frames traced from the event occurrence positions to the upstream of the expressway travelling direction;
and tracing a corresponding number of portals from the event occurrence position to the upstream of the expressway travelling direction based on the event severity grade to serve as an expressway information target transmission range, so as to determine roadside units in the expressway information target transmission range.
8. The method of claim 4, wherein when the information distribution range matching policy is a single portal policy, the step of determining a roadside unit within the expressway information target transmission range from the event occurrence location back upstream in the expressway travel direction based on the information distribution range matching policy comprises:
and only tracing one portal frame from the event occurrence position to the upstream of the expressway travelling direction as an expressway information target transmission range, so as to determine a roadside unit in the expressway information target transmission range.
9. A system for highway information distribution comprising a processor and a memory, wherein said memory has stored therein computer instructions for executing the computer instructions stored in said memory, which system when executed by the processor implements the steps of the method according to any one of claims 1 to 8.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 8.
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| CN202310974833.7A CN117058872A (en) | 2023-08-03 | 2023-08-03 | Method, system and storage medium for publishing information on expressway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117475641A (en) * | 2023-12-28 | 2024-01-30 | 辽宁艾特斯智能交通技术有限公司 | Method, device, equipment and medium for detecting traffic state of expressway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117475641A (en) * | 2023-12-28 | 2024-01-30 | 辽宁艾特斯智能交通技术有限公司 | Method, device, equipment and medium for detecting traffic state of expressway |
| CN117475641B (en) * | 2023-12-28 | 2024-03-08 | 辽宁艾特斯智能交通技术有限公司 | Method, device, equipment and medium for detecting traffic state of expressway |
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