CN113192327B - Road operation risk active prevention and control system and method considering traffic flow and individuals - Google Patents
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Abstract
Description
Translated fromChinese技术领域technical field
本发明属于交通安全技术领域，尤其涉及兼顾交通流和个体的道路运行风险主动防控系统及方法。The invention belongs to the technical field of traffic safety, and in particular relates to an active prevention and control system and method for road operation risks taking into account both traffic flow and individuals.
背景技术Background technique
当前道路风险等级的预测、预警方法中对交通流和个体车辆的主动风险防控方法中存在不足，监测设备安装在双向两车道上，发生碰撞交通事故会影响上游车辆的通行，对道路造成一定的拥堵，此时上游的车辆不知道下游事故多发点已发生事故，上游的车辆会按照当前道路的限速进行正常行驶，而现有的主动风险防控方法并未对上游交通流的车辆速度进行控制，造成上游车辆大量汇入下游的事故点，造成事故多发点的交通拥堵，降低了道路运输的效率。There are deficiencies in the current road risk level prediction and early warning methods for traffic flow and active risk prevention and control methods for individual vehicles. Monitoring equipment is installed on two-way two-lane lanes. A collision and traffic accident will affect the passage of upstream vehicles and cause certain damage to the road. At this time, the upstream vehicles do not know that accidents have occurred in the downstream accident-prone points, and the upstream vehicles will drive normally according to the speed limit of the current road, and the existing active risk prevention and control methods do not control the speed of the upstream traffic flow. Control, causing a large number of upstream vehicles to merge into the downstream accident points, causing traffic congestion in accident-prone points, and reducing the efficiency of road transportation.
发明内容SUMMARY OF THE INVENTION
针对现有技术中存在的问题，本发明的目的在于提供一种兼顾交通流和个体的道路运行风险主动防控方法及系统，本发明针对双向两车道的公路安全等级的防控问题，从速度诱导和信息提醒的角度对道路的运行风险进行防控，具体采用了视觉获取的方式得到当前交通的变化情况，通过评估抓拍到的交通情况，确定当前道路风险等级，对上游交通流的车辆速度进行控制，避免上游车辆的大量汇入造成事故多发点的交通拥堵，有效规避了交通事故的发生。In view of the problems existing in the prior art, the purpose of the present invention is to provide a method and system for active prevention and control of road operation risks that take into account both traffic flow and individuals. The road operation risk is prevented and controlled from the perspective of induction and information reminder. The visual acquisition method is used to obtain the current traffic changes. By evaluating the captured traffic conditions, the current road risk level is determined, and the vehicle speed of the upstream traffic flow is determined. Control, avoid the traffic congestion caused by the large number of upstream vehicles entering the accident-prone point, and effectively avoid the occurrence of traffic accidents.
为了达到上述目的，本发明采用如下技术方案予以实现：In order to achieve the above object, the present invention adopts the following technical solutions to be realized:
(一)兼顾交通流和个体的道路运行风险主动防控系统，包括：云处理中心平台、可变信息板和多个交通流监测设备；(1) An active prevention and control system that takes into account both traffic flow and individual road operation risks, including: a cloud processing center platform, a variable information board, and multiple traffic flow monitoring devices;
每个所述交通流监测设备设置于公路路侧的龙门架上，每个所述交通流监测设备包含交通事件检测器、网络摄像机和毫米波雷达；所述网络摄像机包含边缘计算单元；所述交通事件检测器用于实时检测公路上的异常交通事件时，提取发生异常交通事件的车辆信息，并将其传输给云处理中心平台，其中，车辆信息包含车型、颜色和车牌；所述网络摄像机用于拍摄公路上的每个车辆的车辆信息，并将其传输给边缘计算单元；所述边缘计算单元用于获取车辆信息，并生成对应车辆的ID编码，并将其传输给云处理中心平台；所述毫米波雷达用于检测公路上每个车辆的车速信息，并将其传输给云处理中心平台；Each of the traffic flow monitoring devices is arranged on a gantry on the side of the highway, and each of the traffic flow monitoring devices includes a traffic event detector, a network camera and a millimeter-wave radar; the network camera includes an edge computing unit; the When the traffic event detector is used to detect abnormal traffic events on the highway in real time, it extracts the vehicle information of the abnormal traffic event and transmits it to the cloud processing center platform, wherein the vehicle information includes the model, color and license plate; It is used to photograph the vehicle information of each vehicle on the road and transmit it to the edge computing unit; the edge computing unit is used to obtain the vehicle information, generate the ID code of the corresponding vehicle, and transmit it to the cloud processing center platform; The millimeter wave radar is used to detect the speed information of each vehicle on the road and transmit it to the cloud processing center platform;
所述云处理中心平台根据车辆信息、ID编码、车速和位置信息，确定公路上的交通流风险等级和个体风险等级以及与其匹配的交通流风险等级对应的防控策略和个体风险等级对应的防控策略，并将相应的防控策略传输给可变信息板；The cloud processing center platform determines, according to the vehicle information, ID code, vehicle speed and position information, the traffic flow risk level and individual risk level on the highway, as well as the prevention and control strategies corresponding to the matching traffic flow risk level and the prevention and control measures corresponding to the individual risk level. control strategy, and transmit the corresponding prevention and control strategy to the variable information board;
所述可变信息板设置于公路路侧，用于根据控制策略，显示预警信息。The variable information board is arranged on the roadside of the highway, and is used for displaying early warning information according to the control strategy.
进一步的，所述交通流监测设备有三个，三个所述交通流检测设备依次设置在所述事故频率高发点上游100m处的公路路侧的龙门架上、上游400m处的公路路侧的龙门架上和上游1000m处的公路路侧的龙门架上；其中，所述事故频率高发点是根据历史交通数据确定。Further, there are three traffic flow monitoring devices, and the three traffic flow detection devices are sequentially arranged on the gantry on the side of the highway 100m upstream from the high accident frequency point, and on the gantry on the side of the highway 400m upstream. On the frame and on the gantry on the road side of the road at 1000m upstream; wherein, the high accident frequency point is determined according to historical traffic data.
进一步的，所述可变信息板有两个，分别为可变信息板S1和可变信息板S2；Further, there are two variable information boards, namely the variable information board S1 and the variable information board S2;
所述可变信息板S1设置于所述事故频率高发点上游300m处的公路路侧，用于显示交通流矫正信息；The variable information board S1 is arranged on the roadside of the road 300m upstream of the high accident frequency point, for displaying traffic flow correction information;
所述可变信息板S2设置于所述事故频率高发点上游1000m处的公路路侧，用于显示个体风险等级较高的个体车辆信息。The variable information board S2 is arranged on the roadside of the road 1000m upstream of the high accident frequency point, and is used to display the information of individual vehicles with higher individual risk levels.
(二)兼顾交通流和个体的道路运行风险主动防控方法，包括如下步骤：(2) Active prevention and control methods for road operation risks taking into account both traffic flow and individuals, including the following steps:
步骤1，根据历史交通数据确定事故频率高发点，沿所述事故频率高发点的上游依次设置多个交通流监测设备，每个所述交通流监测设备对应一个子路段，采集对应子路段上发生异常交通事件的车辆信息，以及对应子路段上每个车辆的车辆信息和车速信息；其中，车辆信息包含车型、颜色和车牌；Step 1: Determine a high accident frequency point according to historical traffic data, set up multiple traffic flow monitoring devices in sequence along the upstream of the high accident frequency point, each of the traffic flow monitoring devices corresponds to a sub-section, and collect occurrences on the corresponding sub-section. Vehicle information of abnormal traffic events, as well as vehicle information and speed information of each vehicle on the corresponding sub-segment; the vehicle information includes model, color and license plate;
其中，每个子路段通过交通事件检测器实时检测公路上发生的异常交通事件；网络摄像机拍摄公路上的每个车辆的车辆信息；边缘计算单元生成对应车辆的ID编码；毫米波雷达检测公路上每个车辆的车速信息；Among them, each sub-section detects abnormal traffic events on the highway in real time through the traffic event detector; the network camera captures the vehicle information of each vehicle on the highway; the edge computing unit generates the ID code of the corresponding vehicle; vehicle speed information;
步骤2，根据所有子路段上发生异常交通事件的车辆信息以及所有子路段上每个车辆的车辆信息和车速信息，确定各个子路段的交通流风险等级和个体风险等级，发布防控策略；Step 2: Determine the traffic flow risk level and individual risk level of each sub-section according to the vehicle information of abnormal traffic events on all sub-sections and the vehicle information and vehicle speed information of each vehicle on all sub-sections, and issue prevention and control strategies;
步骤3，根据各个子路段的交通流风险等级和个体风险等级，比较交通流风险等级和个体风险等级之间的大小，显示限制速度；Step 3, according to the traffic flow risk level and individual risk level of each sub-section, compare the size between the traffic flow risk level and the individual risk level, and display the speed limit;
步骤4，获取所有车辆的ID编码和车速，比较每个车辆的车速与步骤3中的限制速度的大小，并根据比较结果显示预警信息。Step 4: Obtain the ID codes and vehicle speeds of all vehicles, compare the speed of each vehicle with the speed limit in step 3, and display early warning information according to the comparison results.
进一步的，步骤1中，所述历史交通数据包含事故类型和事故发生率。Further, in step 1, the historical traffic data includes accident types and accident rates.
进一步的，步骤1中，所述异常交通事件是指：违章停车、交通拥堵、非法逆行、越线行驶、慢行或超速。Further, in step 1, the abnormal traffic event refers to: illegal parking, traffic congestion, illegal reverse driving, crossing the line, slow driving or speeding.
进一步的，步骤1中，所述防控策略地具体确定过程为：根据各个子路段的交通流风险等级和个体风险等级，在交通特征数据库中选取与其匹配的交通流风险等级对应的防控策略和个体风险等级对应的防控策略，并发布选取好的防控策略。Further, in step 1, the specific determination process of the prevention and control strategy is as follows: according to the traffic flow risk level and individual risk level of each sub-section, select the prevention and control strategy corresponding to the matching traffic flow risk level in the traffic feature database. The prevention and control strategies corresponding to the individual risk levels are released, and the selected prevention and control strategies are released.
进一步的，步骤2中，比较交通流风险等级与个体风险等级的大小的具体过程为：Further, in step 2, the specific process of comparing the size of the traffic flow risk level and the individual risk level is as follows:
对交通流风险等级和个体风险等级归一化处理后，当交通流风险等级大于个体风险等级时，显示交通流矫正信息；其中，交通流矫正信息是指对交通流的平均车流速度进行限制；After normalizing the traffic flow risk level and the individual risk level, when the traffic flow risk level is greater than the individual risk level, the traffic flow correction information is displayed; the traffic flow correction information refers to the restriction of the average traffic speed of the traffic flow;
当交通流风险等级小于等于个体风险等级时，显示个体风险等级较高的个体车辆信息。When the traffic flow risk level is less than or equal to the individual risk level, the information of individual vehicles with higher individual risk levels is displayed.
本发明与现有技术相比，其有益效果在于：Compared with the prior art, the present invention has the following beneficial effects:
本发明采用预测的方式，预测交通流的下游路段交通事故或潜在的风险，通过ITS(智能交通系统)发布提醒信息对交通流进行诱导，对于信息发布后的宏观交通流中的微观个体车辆进行行为检测(包括车速、换道行为等)，对于不遵守发布信息的个体进行行为矫正，矫正的手段包括显示违规车辆的信息，提醒驾驶人注意遵守交通信息发布的内容，提前规避了交通事故的发生。The present invention adopts the method of prediction to predict traffic accidents or potential risks in the downstream sections of the traffic flow, issue reminder information through ITS (Intelligent Transportation System) to induce the traffic flow, and conduct microscopic individual vehicles in the macroscopic traffic flow after the information is released. Behavior detection (including vehicle speed, lane-changing behavior, etc.), conduct behavior correction for individuals who do not comply with the published information, and the means of correction include displaying the information of illegal vehicles, reminding drivers to pay attention to the content of traffic information releases, and avoiding traffic accidents in advance. occur.
附图说明Description of drawings
图1是本发明实施例提供的兼顾交通流和个体的道路运行风险主动防控系统及方法的流程框图。FIG. 1 is a flowchart of a system and method for active prevention and control of road operation risks taking into account traffic flow and individual road operation risks provided by an embodiment of the present invention.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。下列实施例中未注明具体条件的试验方法，通常按照常规条件，或者按照各制造商所建议的条件。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In the following examples, the test methods without specific conditions are usually in accordance with conventional conditions or in accordance with the conditions suggested by various manufacturers.
实施例1Example 1
本发明实施例提供了兼顾交通流和个体的道路运行风险主动防控系统，包括：云处理中心平台、可变信息板和多个交通流监测设备；The embodiment of the present invention provides an active prevention and control system for road operation risks that takes into account both traffic flow and individuals, including: a cloud processing center platform, a variable information board, and multiple traffic flow monitoring devices;
每个交通流监测设备设置于公路路侧的龙门架上，每个交通流监测设备包含交通事件检测器、网络摄像机和毫米波雷达；网络摄像机包含边缘计算单元；交通事件检测器用于实时检测公路上的异常交通事件时，提取发生异常交通事件的车辆信息，并将其传输给云处理中心平台，其中，车辆信息包含车型、颜色和车牌；网络摄像机用于拍摄公路上的每个车辆的车辆信息，并将其传输给边缘计算单元；边缘计算单元用于获取车辆信息，并生成对应车辆的ID编码，并将其传输给云处理中心平台；毫米波雷达用于检测公路上每个车辆的车速信息，并将其传输给云处理中心平台；Each traffic flow monitoring device is set on a gantry on the side of the road, and each traffic flow monitoring device includes a traffic event detector, a network camera and a millimeter-wave radar; the network camera includes an edge computing unit; the traffic event detector is used to detect highways in real time When there are abnormal traffic events on the road, extract the vehicle information of the abnormal traffic event and transmit it to the cloud processing center platform, where the vehicle information includes the model, color and license plate; the network camera is used to photograph the vehicles of each vehicle on the road information, and transmit it to the edge computing unit; the edge computing unit is used to obtain vehicle information, and generate the ID code of the corresponding vehicle, and transmit it to the cloud processing center platform; millimeter wave radar is used to detect each vehicle on the road. Speed information and transmit it to the cloud processing center platform;
云处理中心平台根据车辆信息、ID编码、车速和位置信息，确定公路上的个体风险等级和交通流风险等级以及与其匹配的个体风险等级对应的防控策略和交通流风险等级对应的防控策略，并将相应的防控策略传输给可变信息板；Based on vehicle information, ID code, vehicle speed and location information, the cloud processing center platform determines the individual risk level and traffic flow risk level on the highway, as well as the prevention and control strategies corresponding to the individual risk level and the prevention and control strategy corresponding to the traffic flow risk level. , and transmit the corresponding prevention and control strategy to the variable information board;
可变信息板设置于公路路侧，用于根据控制策略，显示预警信息。The variable information board is set on the road side of the road to display early warning information according to the control strategy.
进一步的，交通流监测设备有三个，三个交通流检测设备依次设置在事故频率高发点上游100m处的公路路侧的龙门架上、上游400m处的公路路侧的龙门架上和上游1000m处的公路路侧的龙门架上；其中，事故频率高发点是根据历史交通数据确定；Further, there are three traffic flow monitoring devices, and the three traffic flow detection devices are sequentially installed on the gantry on the road side of the road 100m upstream from the high accident frequency point, on the gantry on the road side 400m upstream, and 1000m upstream. On the gantry on the side of the highway; among them, the high accident frequency is determined according to the historical traffic data;
具体的，事故频率高发点上游100m处的公路路侧的龙门架为M1，事故频率高发点上游400m处的公路路侧的龙门架为M2，事故频率高发点上游1000m处的公路路侧的龙门架为M3。Specifically, the gantry on the road side of the road 100m upstream from the high accident frequency point is M1, the gantry on the road side 400m upstream from the high accident frequency point is M2, and the gantry on the road side 1000m upstream from the high accident frequency point is M2 The frame is M3.
进一步的，可变信息板有两个，分别为可变信息板S1和可变信息板S2；Further, there are two variable information boards, namely the variable information board S1 and the variable information board S2;
可变信息板S1设置于事故频率高发点上游300m处的公路路侧，用于显示交通流矫正信息；其中，交通流矫正信息是指对交通流的平均车流速度进行限制的信息；The variable information board S1 is set on the road side of the road 300m upstream of the high accident frequency point, and is used to display the traffic flow correction information; wherein, the traffic flow correction information refers to the information that limits the average traffic speed of the traffic flow;
可变信息板S2设置于事故频率高发点上游1000m处的公路路侧，用于显示个体风险等级较高的个体车辆信息。The variable information board S2 is set on the roadside of the road 1000m upstream of the high accident frequency point, and is used to display the information of individual vehicles with higher individual risk levels.
实施例2Example 2
本发明实施例提供了兼顾交通流和个体的道路运行风险主动防控方法，包括如下步骤：The embodiment of the present invention provides an active prevention and control method for road operation risks that takes into account both traffic flow and individuals, including the following steps:
步骤1，根据历史交通数据确定事故频率高发点，沿事故频率高发点的上游依次设置多个交通流监测设备，每个交通流监测设备对应一个子路段，采集对应子路段上发生异常交通事件的车辆信息，以及对应子路段上每个车辆的车辆信息和车速信息；其中，车辆信息包含车型、颜色和车牌；Step 1: Determine the high accident frequency point according to the historical traffic data, and set up multiple traffic flow monitoring devices in sequence along the upstream of the high accident frequency point. Vehicle information, as well as vehicle information and speed information of each vehicle on the corresponding sub-segment; wherein, the vehicle information includes model, color and license plate;
其中，历史交通数据包含事故类型和事故发生率；异常交通事件是指：违章停车、交通拥堵、非法逆行、越线行驶、慢行或超速；Among them, historical traffic data includes accident types and accident rates; abnormal traffic events refer to: illegal parking, traffic congestion, illegal wrong-way driving, crossing the line, slow driving or speeding;
具体的，防控策略地具体确定过程为：根据各个子路段的交通流风险等级和个体风险等级，在交通特征数据库中选取与其匹配的交通流风险等级对应的防控策略和个体风险等级对应的防控策略，并发布选取好的防控策略；Specifically, the specific process of determining the prevention and control strategy is as follows: according to the traffic flow risk level and individual risk level of each sub-section, select the prevention and control strategy corresponding to the matching traffic flow risk level and the individual risk level in the traffic feature database. prevention and control strategies, and release the selected prevention and control strategies;
其中，每个子路段通过交通事件检测器实时检测公路上发生的异常交通事件；网络摄像机拍摄公路上的每个车辆的车辆信息；边缘计算单元生成对应车辆的ID编码；毫米波雷达检测公路上每个车辆的车速信息；Among them, each sub-section detects abnormal traffic events on the highway in real time through the traffic event detector; the network camera captures the vehicle information of each vehicle on the highway; the edge computing unit generates the ID code of the corresponding vehicle; vehicle speed information;
步骤2，根据所有子路段上发生异常交通事件的车辆信息以及所有子路段上每个车辆的车辆信息和车速信息，确定各个子路段的交通流风险等级和个体风险等级，发布防控策略；Step 2: Determine the traffic flow risk level and individual risk level of each sub-section according to the vehicle information of abnormal traffic events on all sub-sections and the vehicle information and vehicle speed information of each vehicle on all sub-sections, and issue prevention and control strategies;
具体的，比较交通流风险等级与个体风险等级的大小的具体过程为：Specifically, the specific process of comparing the size of the traffic flow risk level and the individual risk level is as follows:
对交通流风险等级和个体风险等级归一化处理后，当交通流风险等级大于个体风险等级时，显示交通流矫正信息；其中，交通流矫正信息是指对交通流的平均车流速度进行限制；After normalizing the traffic flow risk level and the individual risk level, when the traffic flow risk level is greater than the individual risk level, the traffic flow correction information is displayed; the traffic flow correction information refers to the restriction of the average traffic speed of the traffic flow;
当交通流风险等级小于等于个体风险等级时，显示个体风险等级较高的个体车辆信息；When the traffic flow risk level is less than or equal to the individual risk level, the information of individual vehicles with higher individual risk levels is displayed;
步骤3，根据各个子路段的交通流风险等级和个体风险等级，比较交通流风险等级和个体风险等级之间的大小，显示限制速度；Step 3, according to the traffic flow risk level and individual risk level of each sub-section, compare the size between the traffic flow risk level and the individual risk level, and display the speed limit;
步骤4，获取所有车辆的ID编码和车速，比较每个车辆的车速与步骤3中的限制速度的大小，并根据比较结果显示预警信息。Step 4: Obtain the ID codes and vehicle speeds of all vehicles, compare the speed of each vehicle with the speed limit in step 3, and display early warning information according to the comparison results.
进一步的，在可变信息板发布相应的预警后，龙门架上安装的网络摄像机和毫米波雷达会按照发布的速度要求或者变道的相关信息检测当前覆盖区域的车辆行驶行为，对不按照发布信息行驶的机动车辆的信息进行记录，并将记录的不按照发布信息行驶的机动车辆的信息发送至云处理中心平台，云处理中心平台会评估当前车辆的安全预警等级。然后对当前个体车辆的安全预警等级与交通流的安全预警等级采用归一化处理后进行比较，针对安全预警等级较高的个体车辆或交通流采取进一步的矫正措施，确定以风险等级高的个体或交通流为主要的校正对象，在可变信息板上发布针对风险等级的交通流或个体的速度限制信息，提醒不按照发布信息行驶的机动车辆按照发布的信息进行行驶；Further, after the variable information board issues the corresponding early warning, the network cameras and millimeter-wave radars installed on the gantry will detect the driving behavior of vehicles in the current coverage area according to the published speed requirements or the relevant information of lane change, and will check the driving behavior of vehicles that do not comply with the published information. The information of the motor vehicles driving with the information is recorded, and the recorded information of the motor vehicles that do not drive according to the published information is sent to the cloud processing center platform, and the cloud processing center platform will evaluate the safety warning level of the current vehicle. Then, the current safety warning level of individual vehicles and the safety warning level of traffic flow are normalized and compared, and further corrective measures are taken for individual vehicles or traffic flows with higher safety warning levels. Or the traffic flow is the main correction object, and the speed limit information of the traffic flow or individual for the risk level is released on the variable information board, and the motor vehicles that do not drive according to the published information are reminded to drive according to the published information;
具体的，当龙门架M1上的交通事件检测器检测到对应路段的车辆异常事件时，提取发生异常交通事件的车辆信息，并将其传输给云处理中心平台，其中，车辆信息包含车型、颜色和车牌；Specifically, when the traffic event detector on the gantry M1 detects the abnormal event of the vehicle in the corresponding road section, it extracts the vehicle information of the abnormal traffic event and transmits it to the cloud processing center platform, wherein the vehicle information includes the vehicle type, color and license plate;
云处理中心平台确定个体风险等级，并在其内的交通特征数据库中匹配与其个体风险等级向对应的防控策略，并向可变信息板S2发送预警信息，其中，预警信息是指限速值，其限速值根据交管部门规定的道路常见的限速值发布，限速规定在30km/h，同时可变信息板S2会显示出“前方1km危险，注意保持车速”等类似提示信息的字样；The cloud processing center platform determines the individual risk level, matches the prevention and control strategy corresponding to its individual risk level in the traffic feature database within it, and sends early warning information to the variable information board S2, where the early warning information refers to the speed limit value , the speed limit value is released according to the common speed limit value of the road stipulated by the traffic control department. The speed limit is set at 30km/h. At the same time, the variable information board S2 will display the words "1km ahead, pay attention to maintaining the speed" and other similar prompt information. ;
而龙门架M3安装的网络摄像机会拍摄当前车辆的车辆信息，，并将其传输给边缘计算单元，其中，车辆信息包含车型、颜色和车牌；边缘计算单元用于获取车辆信息，并生成对应车辆的ID编码，并将其传输给云处理中心平台；毫米波雷达用于检测公路上每个车辆的车速信息，并将其传输给云处理中心平台；云处理中心平台会对车辆的ID编码和车辆的车速信息进行存储，龙门架M2上的网络摄像机会在对应ID车辆到达前龙门架M2位置之前，安装在龙门架M2上的网络摄像机识别出相应车辆的ID编码，毫米波雷达会再一次的确定对应ID编码的车辆的速度信息，并比较当前速度信息是否与云处理中心平台发布的速度信息进行比较，车速是否达到规定，当检测到当前被记录的ID编码的车辆当前速度与发布速度的差值大于等于20km/h，并且评估当前对应ID车辆的风险等级较高，则可变信息板S2触发，S2会发布对应ID编码的车辆的信息要求此车辆速度降到发布的限制速度；The network camera installed on the gantry M3 will capture the vehicle information of the current vehicle and transmit it to the edge computing unit, where the vehicle information includes the model, color and license plate; the edge computing unit is used to obtain the vehicle information and generate the corresponding vehicle ID code and transmit it to the cloud processing center platform; millimeter wave radar is used to detect the speed information of each vehicle on the road, and transmit it to the cloud processing center platform; The speed information of the vehicle is stored, and the network camera on the gantry M2 will recognize the ID code of the corresponding vehicle before the corresponding ID vehicle reaches the position of the front gantry M2, and the millimeter wave radar will once again Determine the speed information of the vehicle corresponding to the ID code, and compare whether the current speed information is compared with the speed information released by the cloud processing center platform, and whether the speed of the vehicle reaches the specified, when it is detected that the current speed of the currently recorded ID-coded vehicle is compared with the published speed. The difference is greater than or equal to 20km/h, and the current risk level of the vehicle corresponding to the ID is relatively high, then the variable information board S2 is triggered, and S2 will release the information of the vehicle corresponding to the ID code to request the speed of the vehicle to be reduced to the published speed limit;
若对应ID编码的车辆的车速达到了可变信息板S2发布的速度要求，龙门架M2上的边缘计算单元会释放对应车辆的ID编码；反之，该ID编码的车辆的速度没有达到可变信息板S2发布的速度要求，龙门架M2上的边缘计算单元会继续存储对应ID编码的车辆信息，并且会把当前车辆的牌号信息进一步的发送到可变信息板S1，可变信息板在继续显示前方300m事故信息的同时，显示当前没有按照可变信息板发布S2发布的速度行驶的车辆的车牌信息，进一步的提示驾驶人按照发布的速度要求控制行驶车速。综上，本发明采用预测的方式，预测交通流的下游路段交通事故或潜在的风险，通过ITS(智能交通系统)发布提醒信息对交通流进行诱导，对于信息发布后的宏观交通流中的微观个体车辆进行行为检测(包括车速、换道行为等)，对于不遵守发布信息的个体进行行为矫正，矫正的手段包括显示违规车辆的信息，提醒驾驶人注意遵守交通信息发布的内容，提前规避了交通事故的发生。If the speed of the vehicle corresponding to the ID code reaches the speed requirement issued by the variable information board S2, the edge computing unit on the gantry M2 will release the ID code of the corresponding vehicle; otherwise, the speed of the vehicle with the ID code does not reach the variable information. According to the speed requirements issued by the board S2, the edge computing unit on the gantry M2 will continue to store the vehicle information corresponding to the ID code, and will further send the current vehicle license plate information to the variable information board S1, and the variable information board will continue to display At the same time as the accident information 300m ahead, the license plate information of the vehicle that is not currently traveling at the speed published by S2 is displayed on the variable information board, and the driver is further prompted to control the speed of the vehicle according to the published speed requirements. To sum up, the present invention adopts a prediction method to predict traffic accidents or potential risks in the downstream sections of the traffic flow, and releases reminder information through ITS (Intelligent Transportation System) to induce the traffic flow. Behavior detection of individual vehicles (including vehicle speed, lane-changing behavior, etc.), and behavior correction for individuals who do not comply with the published information. The means of correction include displaying the information of illegal vehicles, reminding drivers to pay attention to complying with the content of the traffic information release, and avoiding in advance. The occurrence of traffic accidents.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
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