CN113380042B - 5G vehicle-road cooperative speed guiding control method, system, equipment and storage medium - Google Patents
5G vehicle-road cooperative speed guiding control method, system, equipment and storage medium Download PDFInfo
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- CN113380042B CN113380042B CN202110922677.0A CN202110922677A CN113380042B CN 113380042 B CN113380042 B CN 113380042B CN 202110922677 A CN202110922677 A CN 202110922677A CN 113380042 B CN113380042 B CN 113380042B
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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
- G08G1/07—Controlling traffic signals
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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
Description
Claims (6)
- The 1.5G vehicle-road cooperative speed guidance control method is characterized by comprising the following steps: the method comprises the following specific steps:acquiring queuing length information of vehicles on different lanes of each entrance lane of an intersection through external equipment and transmitting the information to a Road Side Unit (RSU);combining the queuing length information in the step one, performing UPER coding on the countdown information and the next phase state duration of each entrance way of the intersection, and packaging the DSMP into standard SPAT information; finally, packaging the queuing length information into standard RSI information for broadcasting;step three, using the edge MEC as a roadside data transfer station, storing lane-level MAP information of the intersection, and acquiring road condition information uploaded by the 5G roadside CPE through the 5G GNB to realize the updating function of the MAP MAP information of the intersection, wherein the edge MEC encapsulates a MAP into standard MAP information and sends the standard MAP information to the 5G vehicular CPE through the 5G GNB;step four, the vehicle-mounted unit OBU acquires longitude and latitude information of an automatic driving vehicle, vehicle speed v, vehicle tolerance acceleration a, vehicle road direction angle and vehicle type information, acquires SPAT and RSI information through wireless short-range communication, acquires intersection MAP MAP information through 5G vehicle-mounted CPE, performs lane-level positioning, matches the signal states of a road section, a lane and a front intersection where the vehicle is currently driven, and then calls a vehicle speed guide model to construct;step five, defining vehicle running parameters including maximum allowable speed VmaxMinimum tolerated speed VminThe intersection saturation flow rate S, the vehicle speed guide range, the maximum recommended vehicle speed and the minimum recommended vehicle speed;step six, calculating the time and the running distance of the vehicle for accelerating to the maximum tolerated speed, the time and the running distance for decelerating to the minimum tolerated speed and calculating the time and the running distance for decelerating to stop by the vehicle by combining the position of the vehicle at the current distance from the intersection;step seven: analyzing whether the distance traveled by the vehicle when the vehicle accelerates and decelerates to the maximum and minimum tolerance speeds and the distance traveled by the vehicle when the vehicle reaches the intersection are the same or not, if the distance traveled by the vehicle when the vehicle reaches the intersection is not exceeded, calculating the time of the vehicle which is estimated to reach the intersection according to the principle that the vehicle accelerates firstly and then has a constant speed, and decelerates firstly and then has a constant speed, and calculating the time required by the vehicle to reach the intersection in the acceleration stage and the deceleration stage;step eight, checking abnormal driving behaviors of the vehicle, calculating the time and the driving distance for the vehicle to decelerate to the maximum tolerated speed and the time and the driving distance for the vehicle to directly decelerate to stop when the speed of the vehicle exceeds the maximum tolerated speed, and calculating the time and the driving distance for the vehicle to accelerate to the minimum tolerated speed and the time and the driving distance for the vehicle to decelerate to stop when the speed of the vehicle is lower than the minimum tolerated speed;step nine, determining a speed guide interval under each signal lamp condition according to the color of the countdown signal lamp by the speed guide;and step ten, the vehicle-mounted unit OBU calculates a speed guide interval by calling a vehicle speed guide algorithm, transmits the speed guide interval to the vehicle-mounted PAD through WIFI or wired transmission, and displays the speed guide interval to a driver through a page or voice.
- 2. The 5G vehicle-road cooperative speed guidance control method according to claim 1, characterized in that: in the first step, a road side camera and a laser radar device acquire queuing length information of different flow directions of each entrance way of an intersection, the queuing length information is transmitted to a vehicle-road cooperative special signal machine through a network port, signal countdown information and a signal control scheme of the intersection are acquired through the signal machine, the information is transmitted to the 5G road side CPE through the network port, the 5G road side CPE transmits the signal control scheme to an edge MEC unit through a uu interface and a UTRAN, one part of the signal countdown information and the signal control scheme and the queuing length information are transmitted to a road side unit RSU;the signal control scheme refers to counting down the next phase state duration and phase configuration information.
- 3. The 5G vehicle-road cooperative speed guidance control method according to claim 2, characterized in that: in the fourth step, the vehicle speed guides the construction process of the model, and the construction process is refined as follows:step four, judging that the vehicle enters a guide area, and executing step two if the vehicle enters the guide area;step four, acquiring a signal countdown state and a signal control scheme of the intersection by using a 5G communication link network, and simultaneously acquiring real-time vehicle state information and an intersection queuing state;step four, matching the signal states of the road section, the lane and the intersection at which the vehicle runs at present, judging whether the vehicle can pass through the intersection or not through a vehicle speed guiding algorithm, if so, performing the step four, and if not, returning to the step two;and fourthly, completing construction of the vehicle speed guide model.
- 4. The 5G vehicle-road cooperative speed guidance control method according to claim 3, characterized in that: in step nine, the step of specifically determining the speed guidance interval is as follows:ninthly, dividing scenes according to the colors of countdown signal lamps;step nine two, calculating the time required for the vehicle to reach the intersection at the current speed;step nine and three, judging that the vehicle has the maximum allowable speed VmaxOr minimum tolerated speed VminWhether the crossing can be passed; if yes, suggesting that the guiding vehicle speed intervals are the maximum or minimum speed limit values of the road, otherwise guiding the vehicle to stop;and when the time required by the vehicle to reach the intersection at the current vehicle speed is calculated, the frequency of updating the speed guide interval is 1 second/time.
- 5.5G vehicle and road is speed guide control device in coordination, its characterized in that: the 5G vehicle-road cooperative speed guiding control method comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the 5G vehicle-road cooperative speed guiding control method according to any one of claims 1 to 4 when executing the computer program.
- 6. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a processor, implements the 5G vehicle-road cooperative speed guidance control method of any one of claims 1 to 4.
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Families Citing this family (6)
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CN113903181A (en) * | 2021-09-30 | 2022-01-07 | 中国重汽集团济南动力有限公司 | Vehicle green wave vehicle speed guiding system and method based on LTE-V2X |
CN114360249B (en) * | 2022-01-10 | 2023-04-28 | 北京工业大学 | Fine guiding system under shielding of large-sized vehicle and passing method |
CN115331441A (en) * | 2022-08-09 | 2022-11-11 | 贵阳信息技术研究院 | Narrow curve passage control system and method based on vehicle-road cooperation |
CN115116231B (en) * | 2022-08-26 | 2023-02-03 | 深圳市城市交通规划设计研究中心股份有限公司 | Vehicle-road cooperative microscopic simulation system and method, electronic device and storage medium |
CN115497286A (en) * | 2022-09-02 | 2022-12-20 | 东风悦享科技有限公司 | Front intersection real-time traffic state display system and method based on V2X |
CN116129652B (en) * | 2023-04-10 | 2023-08-01 | 深圳市城市交通规划设计研究中心股份有限公司 | Single intersection internet-connected vehicle speed guiding method, electronic equipment and storage medium |
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