CN114283603A - Method, system and regulation and control system for variable speed limit of expressway based on V2X - Google Patents
Method, system and regulation and control system for variable speed limit of expressway based on V2X Download PDFInfo
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Abstract
The invention belongs to the technical field of vehicle speed limitation, and particularly relates to a V2X-based method, a system and a regulation and control system for variable speed limitation of an expressway, wherein the method for variable speed limitation of the expressway comprises the following steps: acquiring parameters of all vehicles; and issuing a speed limit instruction according to the parameters, so that the real-time detection of the traffic flow density in the area under the jurisdiction is realized, the system platform issues the highest speed limit of the vehicle in the area according to the traffic flow density, the speed limit of the area is adjusted according to the vehicle density at any time and any place, the transportation capacity of the expressway is maximally utilized, and meanwhile, traffic accidents caused by high speed are reduced.
Description
Technical Field
The invention belongs to the technical field of vehicle speed limitation, and particularly relates to a V2X-based method, a system and a regulation and control system for variable speed limitation of an expressway.
Background
According to statistics, the rate of the overtaking accidents on the expressway is very high, and particularly, the speed limit of the vehicles is basically fixed at intersections or road sections with high traffic density such as traffic jam and the like, so that the traffic accidents are caused by the fact that the vehicles behind the expressway run at high speed; on some road sections, the traffic flow density is low, but the highest speed limit of the vehicle is low, so that the vehicle runs slowly, and the full utilization of lane resources is not facilitated.
Therefore, there is a need to design a new method, system and regulation system for variable speed limit of highway based on V2X based on the above technical problems.
Disclosure of Invention
The invention aims to provide a method, a system and a regulation and control system for the variable speed limit of an expressway based on V2X.
In order to solve the technical problem, the invention provides a control method for a variable speed limit of an expressway, which comprises the following steps:
acquiring parameters of all vehicles; and
and issuing a speed limit instruction according to the parameters.
Further, the method for acquiring the parameters of all vehicles comprises the following steps:
position information and speed information of all vehicles are acquired.
Further, the method for issuing the speed limit instruction according to the parameters comprises the following steps:
acquiring the traffic density in a preset area according to the position information and the speed information of all vehicles;
generating speed limit instructions of corresponding preset areas according to the traffic density, namely
When the traffic flow density of a preset area is smaller than a preset threshold value, generating and issuing a first speed limiting instruction of the preset area, wherein the fastest speed in the first speed limiting instruction is a first preset speed;
when the traffic flow density of the preset area is larger than a preset threshold value, generating and issuing a second speed limit instruction of the preset area, wherein the fastest speed in the second speed limit instruction is a second preset speed;
the second preset speed is less than the first preset speed.
In a second aspect, the present invention further provides a variable speed-limiting system for an expressway using the method for controlling a variable speed-limiting of an expressway, including:
the acquisition module acquires parameters of all vehicles; and
and the instruction module is used for issuing a speed limit instruction according to the parameters.
In a third aspect, the present invention further provides a system for regulating and controlling a variable speed limit of an expressway, including:
a vehicle adapted to acquire position information and speed information of the vehicle itself;
the road side equipment is suitable for receiving the position information and the speed information sent by all vehicles and acquiring the traffic density according to the position information and the speed information of all vehicles;
the platform equipment is suitable for receiving the traffic flow density sent by the road side equipment, generating a speed limit instruction according to the traffic flow density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicle by the road side equipment; and/or
The platform equipment is suitable for receiving position information and speed information of each vehicle sent by the road side equipment, acquiring traffic density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicles by the road side equipment; and/or
The platform equipment is suitable for receiving position information and speed information sent by vehicles, acquiring traffic density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density, and sending the speed limit instruction to the vehicles; and/or
The roadside device is suitable for receiving the position information and the speed information sent by the vehicles, acquiring the traffic flow density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic flow density, and sending the speed limit instruction to the vehicles.
In a fourth aspect, the present invention further provides a vehicle adopted by the regulation and control system for the variable speed limit of the expressway, including:
the system comprises a V2X communication unit, a vehicle control unit and a combination meter;
the vehicle control unit is suitable for acquiring speed information of a vehicle;
the V2X communication unit is suitable for acquiring the position information of the vehicle and transmitting the position information and the speed information of the vehicle to the road side equipment and/or the platform equipment;
the V2X communication unit is suitable for receiving speed limit instructions sent by the road side equipment and/or the platform equipment and displaying the fastest speed in the speed limit instructions through the combination instrument.
Further, the V2X communication unit includes: the vehicle communication module, the GPS positioning module and the V2X information interaction module;
the GPS positioning module is suitable for acquiring the position information of the vehicle;
the vehicle communication module is suitable for sending position information and speed information of a vehicle to the road side equipment and/or the platform equipment;
the V2X information interaction module is suitable for sensing the actual traffic density around the vehicle and executing a speed limiting instruction according to the actual traffic density.
In a fifth aspect, the present invention further provides a roadside device adopted by the regulation and control system for the variable speed limit of the highway, including:
the road side communication module is electrically connected with the control module;
the sensing module is suitable for receiving position information and speed information sent by a vehicle;
the roadside communication module is suitable for sending the received position information and the speed information to the platform equipment;
the control module is suitable for acquiring traffic flow density according to the position information and the speed information, generating a speed limit instruction according to the traffic flow density and sending the speed limit instruction to the vehicle; and/or
The control module is suitable for obtaining the traffic density according to the position information and the speed information and sending the traffic density to the platform equipment.
In a sixth aspect, the present invention further provides a platform device adopted by the regulation and control system for the variable speed limit of the highway, including:
the system comprises a platform communication module and a central processing module;
the platform communication module is suitable for receiving position information and speed information of each vehicle and/or traffic density and/or position information and speed information sent by each vehicle sent by road side equipment;
the central processing module is suitable for generating a speed limit instruction according to the traffic flow density, transmitting the speed limit instruction to roadside equipment, and transmitting the speed limit instruction to the vehicle by the roadside equipment; and/or
The central processing module is suitable for acquiring traffic density according to the position information and the speed information of each vehicle sent by the road side equipment and the position information and the speed information of all vehicles, generating a speed limit instruction according to the traffic density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicles by the road side equipment; and/or
The central processing module is suitable for acquiring traffic density according to the position information and the speed information sent by the vehicles and the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density and sending the speed limit instruction to the vehicles.
The invention has the beneficial effects that the parameters of all vehicles are obtained; and issuing a speed limit instruction according to the parameters, so that the real-time detection of the traffic flow density in the area under the jurisdiction is realized, the system platform issues the highest speed limit of the vehicle in the area according to the traffic flow density, the speed limit of the area is adjusted according to the vehicle density at any time and any place, the transportation capacity of the expressway is maximally utilized, and meanwhile, traffic accidents caused by high speed are reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flowchart of a method of controlling a variable speed limit of an expressway of the present invention;
FIG. 2 is a schematic block diagram of the highway variable speed limit regulation system of the present invention;
fig. 3 is a flow chart of the control system for the variable speed limit of the expressway of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a method for controlling a variable speed limit on an expressway, comprising: acquiring parameters of all vehicles; and issuing a speed limit instruction according to the parameters, so that the real-time detection of the traffic flow density in the area under the jurisdiction is realized, the system platform issues the highest speed limit of the vehicle in the area according to the traffic flow density, the speed limit of the area is adjusted according to the vehicle density at any time and any place, the transportation capacity of the expressway is maximally utilized, and meanwhile, traffic accidents caused by high speed are reduced.
In this embodiment, the method for acquiring parameters of all vehicles includes: position information and speed information of all vehicles are acquired.
In this embodiment, the method for issuing the speed limit instruction according to the parameter includes: acquiring the traffic density in a preset area according to the position information and the speed information of all vehicles; generating a speed limit instruction corresponding to a preset area according to the traffic flow density, namely generating and issuing a first speed limit instruction of the preset area when the traffic flow density of the preset area is smaller than a preset threshold, wherein the fastest speed in the first speed limit instruction is a first preset speed (for example, 120KM/h, 150KM/h and the like, and can be set according to the actual highest speed limit of a road in the area); when the traffic flow density of the preset area is larger than a preset threshold value, generating and issuing a second speed limit instruction of the preset area, wherein the fastest speed in the second speed limit instruction is a second preset speed (for example, 80 KM/h); the second preset speed is less than the first preset speed.
In this embodiment, the present embodiment further provides a highway variable speed-limiting system using the highway variable speed-limiting control method, including: the acquisition module acquires parameters of all vehicles; and the instruction module is used for issuing a speed limit instruction according to the parameters.
As shown in fig. 2 and fig. 3, in this embodiment, a system for regulating and controlling a variable speed limit of an expressway by using the method for controlling a variable speed limit of an expressway is further provided, including: a vehicle adapted to acquire position information and speed information of the vehicle itself; the road side equipment is suitable for receiving the position information and the speed information sent by all vehicles and acquiring the traffic density according to the position information and the speed information of all vehicles; the platform equipment is suitable for receiving the traffic flow density sent by the road side equipment, generating a speed limit instruction according to the traffic flow density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicle by the road side equipment; and/or the platform equipment is suitable for receiving the position information and the speed information of each vehicle sent by the road side equipment, acquiring the traffic density according to the position information and the speed information of all vehicles, generating a speed limit instruction according to the traffic density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicles by the road side equipment; and/or the platform equipment is suitable for receiving the position information and the speed information sent by the vehicles, acquiring the traffic density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density, and sending the speed limit instruction to the vehicles; and/or the roadside equipment is suitable for receiving the position information and the speed information sent by the vehicles, acquiring the traffic density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density, and sending the speed limit instruction to the vehicles; the road side equipment can be a plurality of road side equipment, and each road side equipment is responsible for one area; the speed limit instruction can be generated by the road side equipment in cooperation with the platform equipment, or can be independently generated by the road side equipment or the platform equipment; the generation of the speed limit instruction is dynamic and is adjusted in real time according to the traffic density.
In this embodiment, the present embodiment further provides a vehicle adopted by the regulation and control system for a variable speed limit on a highway, including: a V2X communication unit, a Vehicle Control Unit (VCU) and a combination meter; the vehicle control unit is suitable for acquiring speed information of a vehicle; the V2X communication unit is suitable for acquiring the position information of the vehicle and transmitting the position information and the speed information of the vehicle to the road side equipment and/or the platform equipment; the V2X communication unit is suitable for receiving speed limit instructions sent by the road side equipment and/or the platform equipment and displaying the fastest speed in the speed limit instructions through the combination instrument.
In this embodiment, the V2X communication unit includes: the vehicle communication module, the GPS positioning module and the V2X information interaction module; the vehicle communication module can be a 4G module, an OBU vehicle-mounted module and the like, can be used for communicating with the platform equipment and the road side equipment at the same time or only communicating with the road side equipment or the platform equipment, and can adjust the communication mode of the vehicle communication module according to the communication requirement; the GPS positioning module is suitable for acquiring the position information of the vehicle; the vehicle communication module is suitable for sending position information and speed information of a vehicle to the road side equipment and/or the platform equipment; the V2X information interaction module is suitable for sensing the actual traffic density around the vehicle and executing a speed limit instruction according to the actual traffic density; the Vehicle Control Unit (VCU) can judge whether to execute the speed limit instruction according to the received speed limit instruction and the actual traffic flow density, and the combination instrument mainly displays the highest speed in the speed limit instruction sent by the VCU so as to remind a driver of the highest speed limit in the area and is accompanied with a sound prompt; and when the condition in the speed limit instruction is met, namely the actual traffic flow is also greater than a preset threshold value, the vehicle control unit executes speed limit, and proposes the highest speed for the driver through a combination instrument or a buzzer.
In this embodiment, this embodiment further provides a roadside device (which may be an RSU device) adopted by the regulation and control system for variable speed limit of an expressway, including: the road side communication module is electrically connected with the control module; the sensing module is suitable for receiving position information and speed information sent by a vehicle; the roadside communication module is suitable for sending the received position information and the speed information to the platform equipment; the control module is suitable for acquiring traffic flow density according to the position information and the speed information, generating a speed limit instruction according to the traffic flow density and sending the speed limit instruction to the vehicle; and/or the control module is suitable for acquiring the traffic density according to the position information and the speed information and sending the traffic density to the platform equipment.
In this embodiment, this embodiment still provides the platform equipment (cloud platform, host computer, server etc.) that the regulation and control system of the variable speed limit of above-mentioned highway adopted, includes: the system comprises a platform communication module and a central processing module; the platform communication module is suitable for receiving position information and speed information of each vehicle and/or traffic density and/or position information and speed information sent by each vehicle sent by road side equipment; the central processing module is suitable for generating a speed limit instruction according to the traffic flow density, transmitting the speed limit instruction to roadside equipment, and transmitting the speed limit instruction to the vehicle by the roadside equipment; and/or the central processing module is suitable for acquiring the traffic density according to the position information and the speed information of each vehicle sent by the road side equipment and the position information and the speed information of all vehicles, generating a speed limit instruction according to the traffic density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicles by the road side equipment; and/or the central processing module is suitable for acquiring traffic density according to the position information and the speed information sent by the vehicles and the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density and sending the speed limit instruction to the vehicles; based on a V2X communication technology, the highway roadside RSU equipment detects the traffic flow density in the area under jurisdiction in real time, the system platform dynamically issues the highest speed limit of vehicles in the area according to the traffic flow density, the speed limit of the area is adjusted anytime and anywhere according to the vehicle density, the transportation capacity of the highway is utilized to the maximum, and meanwhile, traffic accidents caused by high speed are reduced.
In summary, the present invention obtains parameters of all vehicles; and issuing a speed limit instruction according to the parameters, so that the real-time detection of the traffic flow density in the area under the jurisdiction is realized, the system platform issues the highest speed limit of the vehicle in the area according to the traffic flow density, the speed limit of the area is adjusted according to the vehicle density at any time and any place, the transportation capacity of the expressway is maximally utilized, and meanwhile, traffic accidents caused by high speed are reduced.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A control method for a variable speed limit of an expressway is characterized by comprising the following steps:
acquiring parameters of all vehicles; and
and issuing a speed limit instruction according to the parameters.
2. The method for controlling a variable speed limit of a highway according to claim 1,
the method for acquiring the parameters of all vehicles comprises the following steps:
position information and speed information of all vehicles are acquired.
3. The method for controlling a variable speed limit on a highway according to claim 2 wherein,
the method for issuing the speed limit instruction according to the parameters comprises the following steps:
acquiring the traffic density in a preset area according to the position information and the speed information of all vehicles;
generating speed limit instructions of corresponding preset areas according to the traffic density, namely
When the traffic flow density of a preset area is smaller than a preset threshold value, generating and issuing a first speed limiting instruction of the preset area, wherein the fastest speed in the first speed limiting instruction is a first preset speed;
when the traffic flow density of the preset area is larger than a preset threshold value, generating and issuing a second speed limit instruction of the preset area, wherein the fastest speed in the second speed limit instruction is a second preset speed;
the second preset speed is less than the first preset speed.
4. A variable speed limit system for an expressway using the method for controlling a variable speed limit for an expressway according to claim 1, comprising:
the acquisition module acquires parameters of all vehicles; and
and the instruction module is used for issuing a speed limit instruction according to the parameters.
5. A control system for a variable speed limit of an expressway using the control method for a variable speed limit of an expressway according to claim 1, comprising:
a vehicle adapted to acquire position information and speed information of the vehicle itself;
the road side equipment is suitable for receiving the position information and the speed information sent by all vehicles and acquiring the traffic density according to the position information and the speed information of all vehicles;
the platform equipment is suitable for receiving the traffic flow density sent by the road side equipment, generating a speed limit instruction according to the traffic flow density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicle by the road side equipment; and/or
The platform equipment is suitable for receiving position information and speed information of each vehicle sent by the road side equipment, acquiring traffic density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicles by the road side equipment; and/or
The platform equipment is suitable for receiving position information and speed information sent by vehicles, acquiring traffic density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density, and sending the speed limit instruction to the vehicles; and/or
The roadside device is suitable for receiving the position information and the speed information sent by the vehicles, acquiring the traffic flow density according to the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic flow density, and sending the speed limit instruction to the vehicles.
6. A vehicle used in the regulation and control system of the variable speed limit of the expressway according to claim 5, comprising:
the system comprises a V2X communication unit, a vehicle control unit and a combination meter;
the vehicle control unit is suitable for acquiring speed information of a vehicle;
the V2X communication unit is suitable for acquiring the position information of the vehicle and transmitting the position information and the speed information of the vehicle to the road side equipment and/or the platform equipment;
the V2X communication unit is suitable for receiving speed limit instructions sent by the road side equipment and/or the platform equipment and displaying the fastest speed in the speed limit instructions through the combination instrument.
7. The vehicle of claim 6,
the V2X communication unit includes: the vehicle communication module, the GPS positioning module and the V2X information interaction module;
the GPS positioning module is suitable for acquiring the position information of the vehicle;
the vehicle communication module is suitable for sending position information and speed information of a vehicle to the road side equipment and/or the platform equipment;
the V2X information interaction module is suitable for sensing the actual traffic density around the vehicle and executing a speed limiting instruction according to the actual traffic density.
8. A roadside device adopted by the regulation and control system for the variable speed limit of the expressway as claimed in claim 5, comprising:
the road side communication module is electrically connected with the control module;
the sensing module is suitable for receiving position information and speed information sent by a vehicle;
the roadside communication module is suitable for sending the received position information and the speed information to the platform equipment;
the control module is suitable for acquiring traffic flow density according to the position information and the speed information, generating a speed limit instruction according to the traffic flow density and sending the speed limit instruction to the vehicle; and/or
The control module is suitable for obtaining the traffic density according to the position information and the speed information and sending the traffic density to the platform equipment.
9. A platform device used in a regulation and control system for a variable speed limit of a highway according to claim 5, comprising:
the system comprises a platform communication module and a central processing module;
the platform communication module is suitable for receiving position information and speed information of each vehicle and/or traffic density and/or position information and speed information sent by each vehicle sent by road side equipment;
the central processing module is suitable for generating a speed limit instruction according to the traffic flow density, transmitting the speed limit instruction to roadside equipment, and transmitting the speed limit instruction to the vehicle by the roadside equipment; and/or
The central processing module is suitable for acquiring traffic density according to the position information and the speed information of each vehicle sent by the road side equipment and the position information and the speed information of all vehicles, generating a speed limit instruction according to the traffic density, sending the speed limit instruction to the road side equipment, and sending the speed limit instruction to the vehicles by the road side equipment; and/or
The central processing module is suitable for acquiring traffic density according to the position information and the speed information sent by the vehicles and the position information and the speed information of all the vehicles, generating a speed limit instruction according to the traffic density and sending the speed limit instruction to the vehicles.
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| CN202111586852.XA CN114283603A (en) | 2021-12-23 | 2021-12-23 | Method, system and regulation and control system for variable speed limit of expressway based on V2X |
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| CN202111586852.XA CN114283603A (en) | 2021-12-23 | 2021-12-23 | Method, system and regulation and control system for variable speed limit of expressway based on V2X |
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| CN110264752A (en) * | 2019-05-22 | 2019-09-20 | 浙江吉利控股集团有限公司 | A kind of speed-limiting control method and device of urban transportation |
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| CN113450583A (en) * | 2021-09-01 | 2021-09-28 | 长沙理工大学 | Expressway variable speed limit and lane change cooperative control method under vehicle and road cooperation |
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- 2021-12-23 CN CN202111586852.XA patent/CN114283603A/en active Pending
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| CN105427638A (en) * | 2015-12-18 | 2016-03-23 | 哈尔滨工业大学 | Man-machine interactive vehicle-speed control and early-warning system for expressway construction operation area |
| JP2018022304A (en) * | 2016-08-03 | 2018-02-08 | 住友電気工業株式会社 | Roadside communication device, on-vehicle communication device, traffic system, and communication method |
| CN110264752A (en) * | 2019-05-22 | 2019-09-20 | 浙江吉利控股集团有限公司 | A kind of speed-limiting control method and device of urban transportation |
| CN110211382A (en) * | 2019-06-11 | 2019-09-06 | 九江学院 | Automobile speed limit method for early warning and system |
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