WO2021008443A1 - 一种车路协同式的信控交叉口智能埋地灯 - Google Patents

一种车路协同式的信控交叉口智能埋地灯 Download PDF

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Publication number
WO2021008443A1
WO2021008443A1 PCT/CN2020/101203 CN2020101203W WO2021008443A1 WO 2021008443 A1 WO2021008443 A1 WO 2021008443A1 CN 2020101203 W CN2020101203 W CN 2020101203W WO 2021008443 A1 WO2021008443 A1 WO 2021008443A1
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light
buried
vehicle
intelligent
signal
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PCT/CN2020/101203
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English (en)
French (fr)
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曲大义
韩乐潍
杨晶茹
贾彦峰
林璐
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青岛理工大学
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Publication of WO2021008443A1 publication Critical patent/WO2021008443A1/zh

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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
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/022—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a floor or like ground surface, e.g. pavement or false floor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Definitions

  • the invention belongs to the technical field of traffic management and design, and specifically relates to a vehicle-road cooperative type signal-controlled intersection intelligent buried light.
  • the driver needs to quickly judge whether to stop or pass based on real-time road condition information. Because the driver's grasp of the intersection information is not completely accurate, it is easy to make wrong judgments, which can cause traffic delays, or traffic accidents. . According to relevant statistics, more than 60% of urban road traffic accidents occur within level intersections, 90% of which occur during the signal transition period; while the traffic delays caused by conservative driving behaviors during the intersection signal transition period account for the total travel delay 30% of it.
  • the purpose of the present invention is to provide an intelligent buried light for signal-controlled intersections.
  • the intelligent buried light judges whether the driver can safely pass the stop line during the signal transition period based on the vehicle speed and signal phase information.
  • the driver reminds the driver to provide the driver with accurate driving decisions, prevent the driver from running the lights, and effectively reduce the time delay caused by conservative driving behavior.
  • the present invention provides the following solutions:
  • a vehicle-road collaborative signal-controlled intersection intelligent underground light including: an intelligent underground light body, a video detection module, and a decision controller; the intelligent underground light body is installed on the stop line of the entrance , Connect with the decision controller through the I/O line; the CCD camera of the video detection module is installed on the electronic police crossbar at the intersection; the video detection module is connected with the decision controller by bare optical fiber;
  • the decision controller is used to read the video signal of the video detection module, perform DSP front-end processing on the video signal based on the video detection technology, perform target tracking and identification of vehicles passing through the intersection, determine the safety of vehicle driving, and control according to the judgment result
  • the status of the intelligent underground lamp body reminds the driver.
  • the waterproof grade of the intelligent underground lamp body is above IP67, and it has two states of off and light.
  • the intelligent underground lamp body is embedded on the stop line through a prefabricated concrete sleeve base, and three intelligent underground lamp lamp bodies are placed in each lane on the stop line.
  • the lamp body of the intelligent underground lamp emits light in one direction.
  • the intelligent buried lamp body includes an LED light emitting module, a buried lamp control circuit board, a buried lamp metal shell, a transparent protective plate for the light-emitting area, a buried lamp sealing rubber gasket and a buried lamp shell fixing screw ;
  • the LED lamp light emitting module and the buried lamp control circuit board are arranged in the buried lamp metal shell, the LED lamp light emitting module is connected to the buried lamp control circuit board, and the buried lamp control circuit The board is connected with the decision controller through the I/O line;
  • the buried lamp sealing rubber gasket is arranged between the precast concrete sleeve base and the buried lamp metal shell, the buried lamp metal shell, the buried lamp sealing rubber gasket and the precast concrete sleeve base Fix with the fixing screw of the buried lamp shell;
  • the light-emitting area transparent protection board is arranged outside the light-emitting area of the LED lamp light-emitting module.
  • the edges of the metal shell of the buried lamp are rounded, the top of the metal shell of the buried lamp is 5 mm above the ground, and the top shell of the metal shell of the buried lamp is made of high-strength steel.
  • the video detection module uses a TK-1380 industrial CCD camera, collects video signals through a PCI video capture card, and uses bare optical fiber transmission to transmit the video signals to the BNC video input interface of the decision controller.
  • a working method of a vehicle-road-coordinated signal-controlled intersection intelligent buried light is: within 5 seconds before the red light turns on, the safety of the entering vehicle is judged according to the judgment As a result, the state of the intelligent underground lamp body is adjusted, thereby reminding the vehicle that runs the red light unconsciously or consciously;
  • the working method includes the following steps: 5 seconds before the red light turns on, the video detection module starts to work, detects the video signal of the vehicle entering the intersection, and transmits the video signal to the decision controller, which determines the driving according to the video signal. According to the speed and acceleration of the entering vehicle, judge whether the vehicle can pass safely according to the speed, acceleration and red light on time of the entering vehicle. If the vehicle can safely pass the stop line, the intelligent underground light body will not light up. If the stop line can be safely passed before the red light turns on, the intelligent underground light will glow to remind you.
  • the invention discloses an intelligent buried light for signal control intersections.
  • Intelligent underground light includes three parts: intelligent underground light body, video detection module, and decision-making controller.
  • the video detection module includes an industrial CCD camera, a PCI video capture card, and a single-board industrial control machine; the decision-making controller judges the safety of vehicles passing through the intersection according to the vehicle speed detected by the video, and controls the buried lights according to the preset decision model In order to remind the driver; the intelligent underground lamp body is installed on the stop line of the lane, and three lamps are placed in each lane.
  • the intelligent underground lamp body is one-way light and has good waterproof performance. According to the vehicle speed and signal phase information, the invention judges whether the driver can safely pass the stop line during the signal transition period, and reminds the driver through buried lights, effectively preventing red light running and reducing traffic accidents at intersections.
  • Figure 1 is a schematic diagram of the structure of the intelligent buried lamp body provided by the present invention.
  • FIG. 2 is a schematic diagram of the installation structure of the intelligent underground lamp body provided by the present invention.
  • Figure 3 is a schematic diagram of the installation position of the intelligent underground lamp body provided by the present invention.
  • Fig. 4 is a schematic structural diagram of an intelligent buried light for signal-controlled intersections provided by the present invention.
  • In-ground lamp housing fixing screws 1. In-ground lamp sealing rubber gasket, 3. In-ground lamp metal shell, 4. I/O line, 5. In-ground lamp installation prefabricated concrete sleeve base, 6. LED light-emitting area, 7, light-emitting area transparent protection board, 8, LED light-emitting module, 9, buried light control circuit board, 10, buried light installation location, 11, video detection area.
  • the purpose of the present invention is to provide an intelligent buried light for signal-controlled intersections.
  • the intelligent buried light judges whether the driver can safely pass the stop line during the signal transition period based on the vehicle speed and signal phase information.
  • the driver reminds the driver to provide the driver with accurate driving decisions, prevent the driver from running the lights, and effectively reduce the time delay caused by conservative driving behavior.
  • the intelligent buried light includes three parts: an intelligent buried light body, a video detection module, and a decision-making controller;
  • the ground lamp body is installed on the stop line of the entrance road and connected with the decision controller through the I/O line;
  • the CCD camera of the video detection module is installed on the electronic police crossbar at the intersection;
  • the video detection module uses bare fiber Connected to the decision-making controller;
  • the decision-making controller is used to read the video signal of the video detection module, perform DSP front-end processing on the video signal based on the video detection technology, target tracking and identification of vehicles passing through the intersection, and judge the safety of the vehicle According to the judgment result, the state of the intelligent buried lamp body is controlled to remind the driver.
  • the top of the intelligent buried lamp body is 5mm above the ground.
  • the buried lamp metal shell 3 is made of high-strength steel, and the shell edges are rounded to reduce the impact on vehicle tires.
  • a high-strength tempered glass light-emitting area transparent protection plate 7 is installed outside the LED light-emitting area 6 of the intelligent underground lamp body.
  • the intelligent underground lamp body is embedded on the stop line 10 through the prefabricated concrete sleeve base 5, and three lamps are placed in each lane. The underground lamp emits light in one direction and does not affect the driving of vehicles in other directions.
  • the lamp body of the intelligent underground lamp is connected with the decision controller module through the I/O line 4 (as shown in Fig. 4).
  • a sealing rubber gasket 2 is provided between the precast concrete sleeve base 5 and the buried lamp housing 3, and is fixed by the buried lamp housing fixing screws to prevent water from penetrating into the device.
  • the waterproof level of the intelligent buried lamp body is IP67 or above, and has two states of extinguishing and light-emitting.
  • the buried light control circuit board 9 is used to control the state of the LED light-emitting module according to the control signal of the decision controller.
  • the decision-making controller is integrated in the intersection signal and reads the signal phase of the signal in real time.
  • the time from the red light on can be determined according to the signal phase.
  • the video detection module uses a TK-1380 industrial CCD camera to collect video signals through a PCI video capture card, and the bare optical fiber transmission line of the PCI video capture card is connected to the BNC video input interface of the decision controller.
  • the CCD camera of the video detection module is installed on the electronic police crossbar at the intersection. In addition, at intersections with a video bayonet, the required speed information can be obtained directly from the existing video bayonet system.
  • the decision controller reads the video signal of the video detection module, performs DSP front-end processing based on video detection technology, performs target tracking and recognition of vehicles passing through the intersection, obtains the speed and acceleration of the entering vehicle, and then according to the speed information and red
  • the remaining time for the lights to turn on is to determine whether the vehicle can safely pass the stop line before the red light turns on, and finally control the status of the buried lights according to the judgment results.
  • the decision-making controller is connected to the video optical transceiver through the BNC interface, and the video signal can be uploaded to the traffic police control center in real time.
  • the specific working process is: 5 seconds before the red light turns on, the video detection module prepares to obtain the video information of the entering vehicle, and transmits the video information to the decision-making controller, which is based on the speed, acceleration and red light of the entering vehicle Turn on time to determine whether the vehicle can safely pass. If the vehicle can safely pass the stop line in the current driving state, the intelligent buried light body does not light up. If the vehicle cannot safely pass the stop line before the red light is on, the intelligent buried light The lamp body of the floor lamp glows to remind. The red light is on, the lamp body of the intelligent underground lamp is off, and a working cycle is completed, waiting for the next working cycle.
  • the present invention addresses the problems of chaotic traffic order, poor safety and low efficiency caused by unstable traffic behavior of drivers within 5 seconds before the red light at the intersection is turned on, and proposes to control the vehicle speed at the intersection and assist the driver in making accurate decisions.
  • the vehicle-road coordinated signal-controlled intersection intelligent buried lights balance the relationship between intersection safety and traffic efficiency. Provide drivers with accurate driving suggestions through the liftable deceleration belt, and reduce the loss of traffic accidents caused by the driver's subjective decision errors during the signal transition period without affecting the efficiency of the green light, and shorten the time brought by conservative driving behaviors Delays provide double protection for drivers to pass the intersection safely.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

一种用于信控交叉口的智能埋地灯，包括智能埋地灯灯体、视频检测模块、决策控制器三部分。视频检测模块包括工业CCD摄像机、PCI视频采集卡、单板工业控制机。决策控制器根据视频检测到的车速情况，判断通过交叉口车辆的安全性，并根据预设决策模型控制埋地灯的发光状态，从而对驾驶员进行提醒；智能埋地灯灯体安装于车道停止线上，每车道放置三盏，智能埋地灯灯体为单向发光且具有良好的防水性能。智能埋地灯根据车速和信号相位信息，判断驾驶员能否在信号过渡期间安全通过停车线，通过埋地灯对驾驶员进行提醒，有效防止闯红灯现象发生，减少交叉口交通事故的发生。

Description

一种车路协同式的信控交叉口智能埋地灯
本申请要求于2019年07月12日提交中国专利局、申请号为201910627173.9、发明名称为“一种车路协同式的信控交叉口智能埋地灯”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于交通管理以及设计技术领域，具体涉及一种车路协同式的信控交叉口智能埋地灯。
背景技术
交叉口信号过渡期间，驾驶员需根据实时路况信息迅速判断停车或通过，由于驾驶员对交叉口信息的把握不完全准确，极易做出错误判断，轻则造成交通延误，重则导致交通事故。据相关资料统计，城市道路交通事故60％以上发生在平面交叉口范围内，其中90％是发生在信号过渡期间；而保守型驾驶行为在交叉口信号过渡期间造成的交通延误，占行程总延误的30％。
发明内容
本发明的目的是提供一种用于信控交叉口的智能埋地灯，智能埋地灯根据车速和信号相位信息，判断驾驶员能否在信号过渡期间安全通过停车线，通过埋地灯对驾驶员进行提醒，为驾驶员提供准确的驾驶决策，防止驾驶员闯灯行为的发生，同时也可以有效减少保守型驾驶行为造成的时间延误损失。
为实现所述目的，本发明提供了如下方案：
一种车路协同式的信控交叉口智能埋地灯，包括：智能埋地灯灯体、视频检测模块、决策控制器三部分；所述智能埋地灯灯体安装于进口道停止线上，通过I/O线与决策控制器连接；所述视频检测模块的CCD摄像机安装于交叉口的电子警察横杆上；所述视频检测模块采用裸光纤与决策控制器连接；
所述决策控制器用于读取视频检测模块的视频信号，基于视频检测技术对视频信号进行DSP前端处理，对通过交叉口的车辆进行目标跟踪与识别，判断车辆行驶的安全性，根据判断结果控制智能埋地灯灯体的状态，提醒驾驶员。
可选的，所述智能埋地灯灯体的防水等级在IP67以上，并具有熄灭、发光两种状态。
可选的，所述智能埋地灯灯体通过预制混凝土套筒底座嵌装于停止线上，停止线上的每车道放置三盏智能埋地灯灯体。
可选的，所述智能埋地灯灯体为单向发光。
可选的，所述智能埋地灯灯体包括LED灯发光模块、埋地灯控制电路板、埋地灯金属外壳、发光区透明保护板、埋地灯密封橡胶垫圈和埋地灯外壳固定螺丝；
所述LED灯发光模块和所述埋地灯控制电路板设置在所述埋地灯金属外壳内，所述LED灯发光模块与所述埋地灯控制电路板连接，所述埋地灯控制电路板通过I/O线与决策控制器连接；
所述埋地灯密封橡胶垫圈设在预制混凝土套筒底座和所述埋地灯金属外壳之间，所述埋地灯金属外壳、所述埋地灯密封橡胶垫圈和所述预制混凝土套筒底座通过埋地灯外壳固定螺丝固定；
发光区透明保护板设置在所述LED灯发光模块的发光区域的外侧。
可选的，所述埋地灯金属外壳的边缘采用圆角设计，所述埋地灯金属外壳的顶部高于地面5mm，所述埋地灯金属外壳的顶部外壳使用高强度钢材制造。
可选的，所述视频检测模块使用TK-1380工业CCD摄像机，通过PCI视频采集卡采集视频信号，采用裸光纤传输将视频信号传送至决策控制器的BNC视频输入接口。
一种车路协同式的信控交叉口智能埋地灯的工作方法，所述工作方法的目的是：在红灯启亮前的5秒内，对驶进车辆的安全性进行判断，根据判断结果调控智能埋地灯灯体的状态，从而对无意识或有意识闯红灯的车辆进行提醒；
所述工作方法包括如下步骤：红灯启亮前5秒，视频检测模块开始工 作，检测驶进交叉口车辆的视频信号，并将视频信号传输至决策控制器，决策控制器根据视频信号确定驶进车辆的速度、加速度，根据驶进车辆的速度、加速度以及红灯启亮时间，判断车辆能否安全通过，若车辆能够安全通过停止线，则智能埋地灯灯体不亮，若车辆不能够在红灯亮之前安全通过停止线，则智能埋地灯灯体发光进行提醒。
本发明的有益效果是：
本发明公开了一种用于信控交叉口的智能埋地灯。智能埋地灯包括智能埋地灯灯体、视频检测模块、决策控制器三部分。视频检测模块包括工业CCD摄像机、PCI视频采集卡、单板工业控制机构成；决策控制器根据视频检测到的车速情况，判断通过交叉口车辆的安全性，并根据预设决策模型控制埋地灯的发光状态，从而对驾驶员进行提醒；智能埋地灯灯体安装于车道停止线上，每车道放置三盏，智能埋地灯灯体为单向发光且具有良好的防水性能。本发明根据车速和信号相位信息，判断驾驶员能否在信号过渡期间安全通过停车线，通过埋地灯对驾驶员进行提醒，有效防止闯红灯现象发生，减少交叉口交通事故的发生。
说明书附图
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明提供的智能埋地灯灯体的结构示意图；
图2为本发明提供的智能埋地灯灯体的安装结构示意图；
图3为本发明提供的智能埋地灯灯体的安装位置示意图；
图4为本发明提供的用于信控交叉口的智能埋地灯的结构示意图；
图中：1、埋地灯外壳固定螺丝，2、埋地灯密封橡胶垫圈，3、埋地灯金属外壳，4、I/O线，5、埋地灯安装预制混凝土套筒底座，6、LED发光区域，7、发光区透明保护板，8、LED发光模块，9、埋地灯控制电路板，10、埋地灯安装位置，11、视频检测区域。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的目的是提供一种用于信控交叉口的智能埋地灯，智能埋地灯根据车速和信号相位信息，判断驾驶员能否在信号过渡期间安全通过停车线，通过埋地灯对驾驶员进行提醒，为驾驶员提供准确的驾驶决策，防止驾驶员闯灯行为的发生，同时也可以有效减少保守型驾驶行为造成的时间延误损失。
为使本发明的所述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
一种车路协同式的信控交叉口智能埋地灯，如图4所示，所述智能埋地灯包括智能埋地灯灯体、视频检测模块、决策控制器三部分；所述智能埋地灯灯体安装于进口道停止线上，通过I/O线与决策控制器连接；所述视频检测模块的CCD摄像机安装于交叉口的电子警察横杆上；所述视频检测模块采用裸光纤与决策控制器连接；所述决策控制器用于读取视频检测模块的视频信号，基于视频检测技术对视频信号进行DSP前端处理，对通过交叉口的车辆进行目标跟踪与识别，判断车辆行驶的安全性，根据判断结果控制智能埋地灯灯体的状态，提醒驾驶员。
如图1-3所示，所述智能埋地灯灯体，顶部高于地面5mm，埋地灯金属外壳3使用高强度钢材制造，外壳边缘采用圆角设计减少对车辆轮胎的冲击。所述智能埋地灯灯体的LED发光区域6外侧安装有高强度钢化玻璃发光区透明保护板7。所述智能埋地灯灯体通过预制混凝土套筒底座5嵌装于停止线上10，每车道放置三盏，埋地灯为单向发光，不影响其他方向车辆行驶。所述智能埋地灯灯体通过I/O线4与决策控制器模块连接(如图4)。预制混凝土套筒底座5与埋地灯外壳3之间设有密封橡胶垫圈2，并通过埋地灯外壳固定螺丝固定，防止积水渗入装置中，所述智能埋地灯灯体的防水等级在IP67以上，并具有熄灭、发光两种状态。埋地灯控制电路板9用于根据决策控制器的控制信号控制LED发光模块的状态。
决策控制器集成在交叉口信号机中，实时读取信号机的信号相位。可根据信号相位确定距离红灯亮起的时间。
所述视频检测模块使用TK-1380工业CCD摄像机，通过PCI视频采集卡采集视频信号，PCI视频采集卡的裸光纤传输线连接在决策控制器的BNC视频输入接口上。所述视频检测模块的CCD摄像机安装于交叉口的电子警察横杆上。另外，在设有视频卡口的交叉口，可直接从已有视频卡口系统中获取所需车速信息。
所述决策控制器读取视频检测模块的视频信号，基于视频检测技术进行DSP前端处理，对通过交叉口的车辆进行目标跟踪与识别，获取驶进车辆的速度和加速度，再根据车速信息和红灯启亮剩余时间，判断车辆能否在红灯启亮前安全通过停止线，最后根据判断结果控制埋地灯的状态。决策控制器通过BNC接口与视频光端机连接，视频信号可实时上传交警控制中心。
具体的工作过程为：红灯启亮前5秒，视频检测模块准备获取驶进车辆的视频信息，并将视频信息传输至决策控制器，决策控制器根据驶进车辆的速度、加速度以及红灯启亮时间，判断车辆能否安全通过，若以当前行驶状态车辆能够安全通过停止线，则智能埋地灯灯体不亮，若车辆不能够在红灯亮之前安全通过停止线，则智能埋地灯灯体发光提醒。红灯亮起，智能埋地灯灯体熄灭，完成一个工作循环，等待下一个工作循环。
本发明针对交叉口红灯启亮前5秒内，驾驶员交通行为不稳定现象造成的交通秩序混乱、安全性差和效率低下等问题，为控制交叉口处的车速和辅助驾驶员准确决策，提出车路协同式的的信控交叉口智能埋地灯，平衡交叉口安全与通行效率之间的关系。通过可升降减速带为驾驶员提供准确的驾驶建议，在不影响绿灯通行效率的前提下，减少信号过渡期间因驾驶员主观决策失误而造成的交通事故损失，缩短保守型驾驶行为带来的时间延误，为驾驶员安全通过交叉口提供双重保障。
以上结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的 保护之内。

Claims (8)

  1. 一种车路协同式的信控交叉口智能埋地灯，其特征在于，包括：智能埋地灯灯体、视频检测模块、决策控制器三部分；所述智能埋地灯灯体安装于进口道停止线上，通过I/O线与决策控制器连接；所述视频检测模块的CCD摄像机安装于交叉口的电子警察横杆上；所述视频检测模块采用裸光纤与决策控制器连接；
    所述决策控制器用于读取视频检测模块的视频信号，基于视频检测技术对视频信号进行DSP前端处理，对通过交叉口的车辆进行目标跟踪与识别，确定车辆的行驶状态，根据行驶状态和信号相位，判断车辆行驶的安全性，根据判断结果控制智能埋地灯灯体的状态，提醒驾驶员。
  2. 根据权利要求1所述的一种车路协同式的信控交叉口智能埋地灯，其特征在于，所述智能埋地灯灯体的防水等级在IP67以上，并具有熄灭、发光两种状态。
  3. 根据权利要求1所述的一种车路协同式的信控交叉口智能埋地灯，其特征在于，所述智能埋地灯灯体通过预制混凝土套筒底座嵌装于停止线上，停止线上的每车道放置三盏智能埋地灯灯体。
  4. 根据权利要求1所述的一种车路协同式的信控交叉口智能埋地灯，其特征在于，所述智能埋地灯灯体为单向发光。
  5. 根据权利要求3所述的一种车路协同式的信控交叉口智能埋地灯，其特征在于，所述智能埋地灯灯体包括LED灯发光模块、埋地灯控制电路板、埋地灯金属外壳、发光区透明保护板、埋地灯密封橡胶垫圈和埋地灯外壳固定螺丝；
    所述LED灯发光模块和所述埋地灯控制电路板设置在所述埋地灯金属外壳内，所述LED灯发光模块与所述埋地灯控制电路板连接，所述埋地灯控制电路板通过I/O线与决策控制器连接；
    所述埋地灯密封橡胶垫圈设在预制混凝土套筒底座和所述埋地灯金属外壳之间，所述埋地灯金属外壳、所述埋地灯密封橡胶垫圈和所述预制混凝土套筒底座通过埋地灯外壳固定螺丝固定；
    发光区透明保护板设置在所述LED灯发光模块的发光区域的外侧。
  6. 根据权利要求5所述的一种车路协同式的信控交叉口智能埋地灯，其特征在于，所述埋地灯金属外壳的边缘采用圆角设计，所述埋地灯金属 外壳的顶部高于地面5mm，所述埋地灯金属外壳的顶部外壳使用高强度钢材制造。
  7. 按照权利要求1所述的一种车路协同式的信控交叉口智能埋地灯，其特征在于，所述视频检测模块使用TK-1380工业CCD摄像机，通过PCI视频采集卡采集图像，采用裸光纤传输将视频信号传送至决策控制器的BNC视频输入接口。
  8. 一种权利要求1所述的一种车路协同式的信控交叉口智能埋地灯的工作方法，其特征在于，所述工作方法的目的是：在红灯启亮前的5秒内，对驶进车辆的安全性进行判断，根据判断结果调控智能埋地灯灯体的状态，从而对无意识或有意识闯红灯的车辆进行提醒；
    所述工作方法包括如下步骤：红灯启亮前5秒，视频检测模块开始工作，检测驶进交叉口车辆的视频信号，并将视频信号传输至决策控制器，决策控制器根据视频信号确定驶进车辆的速度、加速度，根据驶进车辆的速度、加速度以及红灯启亮时间，判断车辆能否安全通过，若车辆能够安全通过停止线，则智能埋地灯灯体不亮，若车辆不能够在红灯亮之前安全通过停止线，则智能埋地灯灯体发光进行提醒。
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