阅读说明：本技术 一种匝道汇入汇出预警系统 (Ramp inward-remittance and outward-remittance early warning system ) 是由 杨雷 洪涛 王恒达 马铤 于 2021-08-30 设计创作，主要内容包括：本发明涉及车路协同技术领域,尤其为一种匝道汇入汇出预警系统,其包括以下组成内容：C1,车辆检测触发单元：当有车辆驶上匝道时,雷视融合一体机发出预警信号,最终通过两条信息链路分别传递给车辆预警提示单元和RSU数据通信单元；C2,车辆预警提示单元：控制板接收来自LORA接收端的控制信号,联动LED情报板弹出预警文字信息,对过往车辆发出警示；C3,RSU数据通信单元：当RSU数据通信单元接收到数据时,将数据分别发送至车载OBU和云平台,车载OBU广播预警信息,云平台进一步处理数据；匝道车辆正常通过后,预警信号消失,LED情报板不再弹出预警文字信息,RSU数据通信单元也不再广播预警信息。(The invention relates to the technical field of vehicle-road cooperation, in particular to a ramp import and export early warning system, which comprises the following components: c1, vehicle detection trigger unit: when a vehicle drives on a ramp, the radar-vision integration all-in-one machine sends out an early warning signal and finally transmits the early warning signal to the vehicle early warning prompting unit and the RSU data communication unit through two information links; c2, vehicle early warning prompting unit: the control panel receives a control signal from the LORA receiving end, and links with the LED information board to pop out early warning character information and send out warning to passing vehicles; c3, RSU data communication unit: when the RSU data communication unit receives data, the data are respectively sent to the vehicle-mounted OBU and the cloud platform, the vehicle-mounted OBU broadcasts early warning information, and the cloud platform further processes the data; after the ramp vehicle normally passes through, the early warning signal disappears, the LED information board does not pop up early warning character information any more, and the RSU data communication unit does not broadcast the early warning information any more.)

1. The ramp remittance early warning system is characterized by comprising the following components:

a vehicle detection trigger unit (C1) for detecting the merging information of the vehicles at the entrance area of the merging area ramp, analyzing the vehicle behavior, and generating early warning information when detecting that there is a vehicle to be merged out or the vehicle has made a merging out behavior;

a vehicle early warning prompting unit (C2) which gives a warning to the vehicle on the express way when the vehicle is imported;

an RSU data communication unit (C3) for receiving the early warning information, the target presence information and the statistical data.

2. The system according to claim 1, wherein the vehicle detection triggering unit (C1) is composed of a mine-vision integration machine and a LORA communication transceiver, the mine-vision integration machine is used for detecting whether vehicles exist in a main lane, an entrance ramp and an exit ramp area, and the LORA communication transceiver is responsible for transmitting vehicle import and export early warning information.

3. The ramp junction remittance prewarning system according to claim 2, wherein the vehicle prewarning prompting unit (C2) is composed of a control panel and an LED information board, the control panel receives a control signal from the LORA receiving end, and the LED information board is linked to pop-up prewarning text information to warn the passing vehicles.

4. The ramp remittance early warning system according to claim 2, wherein the RSU data communication unit (C3) receives target existence information and statistical data from the radar and video fusion all-in-one machine and sends the target existence information and statistical data to the cloud platform and the vehicle-mounted OBU, respectively.

Technical Field

The invention relates to the technical field of vehicle-road cooperation, in particular to a ramp junction and junction early warning system.

Background

In recent years, along with the rapid expansion of an urban expressway network, the urban expressway gradually becomes an increasingly important part in the urban road network and becomes an important guarantee for realizing rapid operation of urban traffic, and a confluence area of a communication point of the expressway and a common ground road is a link for realizing the combination and separation of traffic flow and other traffic flow in an expressway system and is an important node for ensuring that both the expressway and the common urban road can efficiently pass. In the junction area of the urban expressway, because vehicles on the ramp and vehicles running on the expressway can not predict each other when vehicles on the ramp merge in and vehicles on the expressway can not predict the merging behavior of vehicles ahead when vehicles on the right lane merge out, the problems of traffic flow disorder in the junction area, increased traffic conflict quantity and the like can be caused when vehicles on the ramp merge in and out behavior in the junction area.

Disclosure of Invention

The invention aims to provide a ramp junction early warning system to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a ramp influx and efflux early warning system comprises the following components:

the vehicle detection triggering unit is used for detecting the confluence information of the vehicles at the entrance area of the ramp of the confluence area, analyzing the behavior of the vehicles and generating early warning information when detecting that the vehicles want to be remitted or have made a remittance behavior;

the vehicle early warning prompting unit is used for warning the vehicles on the express way when the vehicles are converged;

and the RSU data communication unit is used for receiving the early warning information, the target existence information and the statistical data. The vehicle detection triggering unit consists of a radar fusion all-in-one machine and an LORA communication transceiving end, when a vehicle is converged, the radar fusion all-in-one machine detects an area of a ramp inlet of a confluence area, when a vehicle is detected to enter the confluence area from a ramp, the radar fusion all-in-one machine generates vehicle convergence early warning information, on one hand, the early warning information is transmitted to the vehicle early warning prompting unit from the vehicle detection triggering unit through the LORA transceiving end, and on the other hand, the early warning information is transmitted to the RSU data communication unit; when the vehicles are remitted, the thunder-vision integration all-in-one machine detects the part of the express way near the shunting area, detects the driving condition of the vehicles on the express way, analyzes the behavior of the vehicles, and generates early warning information of remittance of the vehicles and sends the information to the RSU data communication unit when detecting that the vehicles are remitted or remitted.

The vehicle early warning prompting unit is composed of a control panel and an LED (light emitting diode) information board, when a vehicle converges, the control panel receives early warning information from an LORA (Long range radio Access) receiving end and then generates a corresponding control signal, and the LED information board is linked to pop up early warning character information to warn the vehicle on an express way.

The RSU data communication unit receives early warning information, target existence information and statistical data from the radar-vision integration all-in-one machine, after the RSU data communication unit receives the early warning information, the RSU data communication unit combines a high-precision map and positioning information to broadcast and send the early warning information to the vehicle-mounted OBUs within a specific range, meanwhile, the early warning information is communicated with the target existence information and the statistical information to be sent to the cloud platform, and therefore richer scene application of the vehicle networking V2X is achieved.

Compared with the current situation that the ramp is merged into and is exported, the invention has the beneficial effects that:

according to the road information acquisition function and the vehicle identification function of the Torrill vision integration all-in-one machine, the full-view coverage and the real-time detection are carried out on the expressway convergence area and the expressway convergence area, and the vehicle convergence collision risk is analyzed and early warned, so that the function of early warning of passing vehicles when the vehicle flow convergence conflicts is realized, the road traffic accidents caused by the misjudgment of the convergence decision are reduced, and the driving safety of the vehicles is protected. According to the invention, the road condition and traffic flow information of the coverage area of the detector is collected and analyzed and counted by the construction road side communication unit RSU data communication unit, the early warning information is sent to the vehicle-mounted OBU, the road condition and traffic flow information is sent to the cloud platform, and the synchronization of the vehicle road and cloud information is realized in the ramp merging and merging scene, so that the construction of twin cities and smart cities is contributed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

The present invention provides a solution:

a ramp influx and efflux early warning system comprises the following components:

c1: a vehicle detection triggering unit;

c2: a vehicle early warning prompting unit;

c3: RSU data communication unit.

The vehicle detection trigger unit C1 is composed of a radar fusion all-in-one machine and a LORA communication transceiving end, when a vehicle converges, the radar fusion all-in-one machine detects an area of a ramp entrance of a confluence area, when a vehicle is detected to enter the confluence area from a ramp, the radar fusion all-in-one machine generates vehicle convergence early warning information, on one hand, the early warning information is transmitted to the vehicle early warning prompting unit from the vehicle detection trigger unit through the LORA transceiving end, and on the other hand, the early warning information is transmitted to the RSU data communication unit; when the vehicles are remitted, the thunder-vision integration all-in-one machine detects the part of the express way near the shunting area, detects the driving condition of the vehicles on the express way, analyzes the behavior of the vehicles, and generates early warning information of remittance of the vehicles and sends the information to the RSU data communication unit when detecting that the vehicles are remitted or remitted.

The vehicle early warning prompting unit C2 comprises control panel and LED information board, and when the vehicle was gathered in, the control panel received and is come from LORA receiving terminal early warning information back, generated corresponding control signal, and the LED information board of linkage pops out early warning text message, sends out the warning to the vehicle on the express way.

The RSU data communication unit C3 receives early warning information, target existence information and statistical data from the radar-vision integration all-in-one machine, after the RSU data communication unit receives the early warning information, the RSU data communication unit broadcasts vehicle-mounted OBUs within a specific range by combining a high-precision map and positioning information, and meanwhile, the early warning information, the target existence information and the statistical information are sent to a cloud platform, and richer scene application of the vehicle networking V2X is achieved.

Example (b):

constructing a ramp importing early warning system, and firstly setting point locations: the laser and vision integrated machine is arranged at the intersection of an entrance ramp and an acceleration lane, the LED information board is arranged on a main line lane portal frame or a sign, the optimal position is about 200 meters before the junction point, the laser and vision integrated machine detects vehicles on the upper ramp, when the vehicles drive into the ramp, the laser and vision integrated machine outputs an early warning signal to an LORA transmitting end, a LORA receiving end receives the early warning signal and then pops out preset early warning information through the control board in linkage with the LED information board, the vehicles on the main line lane are reminded of observing and slowing down, and accidents such as rear-end collision and scratch are avoided. And then constructing a data link to realize data transmission: the method comprises the following steps of constructing two different communication links by taking a radar-vision integration all-in-one machine as core equipment: the first link takes a radar-vision integration all-in-one machine RS422 control interface as a data output interface, is connected with an LORA transmitting terminal, an LORA receiving terminal, a control panel and an LED high-brightness indication board, and adopts a serial port transparent transmission protocol and an LORA wireless communication protocol to realize the transmission of early warning signals; and the link II uses a Rayleigh fusion all-in-one RJ45 network port as a data output interface, is connected with an RSU data communication unit through a network cable, and adopts a TCP/I P protocol to realize the transmission of target existing data (direction, speed, position and the like), statistical data (traffic flow, average speed, queuing length and the like) and traffic abnormal data (congestion, retrograde motion, overspeed and slow motion). Finally, the system function is verified through actual test: after a vehicle is driven on a ramp, the radar and vision integration all-in-one machine can detect information such as real-time speed, position, moving direction and the like of a traffic target, continuously generates early warning information, sends the early warning information to the controller through the LORA receiving and sending end, generates a corresponding control signal after the controller receives the early warning information, and links the LED information board to pop out early warning character information to warn the vehicle on the express way; meanwhile, the radar-vision integration all-in-one machine sends detected target existence data, statistical information, early warning information and the like to the RSU data communication unit, and after the RSU data communication unit receives the data, the RSU data communication unit broadcasts the early warning information on a lane of an express way close to a merging area by combining with high-precision map information on one hand, and carries out early warning on a passing vehicle-mounted OBU on the other hand, and sends the early warning information, the target existence data, the statistical information and the like to a cloud platform on the other hand; after the vehicles on the ramp normally pass through, when the radar fusion all-in-one machine detects that no target object exists in the detection area, the early warning signal is not generated any more, the LED information board does not display the early warning information, the RSU data communication unit does not broadcast the early warning information any more, the vehicle-mounted OBU in the past does not receive the early warning information any more, and the vehicles on the main lane can pass through quickly at the moment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.