WO2020216384A1 - 一种城市隧道可变车道分界线的控制方法 - Google Patents

一种城市隧道可变车道分界线的控制方法 Download PDF

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Publication number
WO2020216384A1
WO2020216384A1 PCT/CN2020/096209 CN2020096209W WO2020216384A1 WO 2020216384 A1 WO2020216384 A1 WO 2020216384A1 CN 2020096209 W CN2020096209 W CN 2020096209W WO 2020216384 A1 WO2020216384 A1 WO 2020216384A1
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lane
infrared detection
urban tunnel
vehicle
line
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PCT/CN2020/096209
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English (en)
French (fr)
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马健霄
方松
陆涛
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南京林业大学
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Priority to US17/296,923 priority Critical patent/US11810455B2/en
Publication of WO2020216384A1 publication Critical patent/WO2020216384A1/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
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/08—Controlling traffic signals according to detected number or speed of vehicles

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  • the invention relates to an urban tunnel facility, in particular to a method for controlling the variable lane dividing line of an urban tunnel.
  • the use of intelligent control inventions to intelligently adjust the lane dividing lines of urban tunnels can maximize the use of urban tunnel section resources to solve the urban tunnel capacity caused by tortoise-speed vehicles in urban tunnels The problem of insufficient.
  • the invention problem to be solved by the present invention is to provide a method for controlling the variable lane demarcation line of an urban tunnel in view of the above-mentioned shortcomings of the existing invention.
  • the control method for the variable lane demarcation line of the urban tunnel can determine whether there is a tortoise-speed vehicle on the road. Real-time adjustment of the display status of lane dividing lines in urban tunnels improves the traffic efficiency of urban tunnels and avoids the impact of tortoise-speed vehicles on the traffic capacity of urban tunnels.
  • a method for controlling the variable lane demarcation line of an urban tunnel includes n infrared detection devices and a lane demarcation line formed by m LED indicators arranged in sequence.
  • the n infrared detection devices are arranged directly above the lane center of the urban tunnel.
  • the lane dividing line is a white solid line;
  • the lane dividing line is a white dotted line;
  • the control method includes the following steps:
  • Step 1 Set the distance L between adjacent infrared detection devices, and arrange n infrared detection devices side by side directly above the center of the lane of the urban tunnel according to the distance L;
  • Step 3 When a certain infrared detection device in an urban tunnel detects a vehicle passing signal, proceed along the driving direction. If none of the adjacent a infrared detection devices in the front of the driving direction detect a vehicle passing signal within t, then Judge the vehicle as a tortoise-speed vehicle and go to step 4; otherwise, all m LED indicators will remain lit and lane change is prohibited;
  • Step 4 Convert all the m LED indicators that are lit up into interval lighting, that is, convert the white solid line into a white dashed line, allowing lane change and overtaking.
  • t in step 3 should satisfy:
  • v m is the driving speed of the tortoise-speed vehicle (km/h); I m is the body length (m); v is the normal driving speed of the vehicle (km/h).
  • the distance L is 10m
  • the n infrared detection devices are X 1 , X 2 , X 3 ... X i ... X n-1 ;
  • the step 3 is specifically:
  • a certain infrared detection device X i in an urban tunnel detects a vehicle passing signal
  • the driving direction is extended, if the adjacent X i+1 , X i+2 , X i+3 , If X i+4 and X i+5 do not detect a vehicle passing signal, the vehicle is judged to be a tortoise-speed vehicle, and step 4 is executed; otherwise, all m LED indicators remain lit, and lane changes are prohibited.
  • the length of each LED indicator is 400 cm and the width is 15 cm.
  • the infrared detection device and the lane dividing line formed by m LED indicators arranged in sequence are both arranged in the middle section of the urban tunnel.
  • the control method of the present invention can judge whether there is a tortoise-speed vehicle on the road, and adjust the display state of the lane dividing line in the urban tunnel in real time according to the judgment result. If there is a tortoise-speed vehicle, the lane dividing line can be adjusted It is transformed into a white dashed line, allowing vehicles to change lanes and overtaking, improving the efficiency of tunnel traffic, and avoiding the impact of tortoise-speed vehicles on the tunnel capacity as much as possible.
  • Figure 1 is an elevation layout diagram of the infrared detection device of this embodiment.
  • Figure 2 is a longitudinal layout diagram of part of the infrared detection device of this embodiment.
  • Fig. 3 is a longitudinal layout diagram of the LED indicator in this embodiment.
  • This embodiment is mainly divided into two parts.
  • One part is to arrange an infrared detection device above the lane.
  • the main purpose is to determine whether the driving vehicle is a tortoise-speed vehicle.
  • the other part is a lane demarcation line with variable markings. Normally, the lane demarcation line Displayed as a solid white line, overtaking is prohibited; when the system determines that there is a tortoise-speed vehicle, it is displayed as a white dashed line, allowing the vehicle to change lanes and overtake.
  • the solution of this embodiment will be described in detail below.
  • This embodiment provides a method for controlling a variable lane demarcation line in an urban tunnel, which includes n infrared detection devices and a lane demarcation line formed by m LED indicator lights arranged in sequence.
  • the lane demarcation line is a lane demarcation line with a variable marking.
  • the infrared detection device is arranged side by side directly above the center of the lane of the urban tunnel. Each time a vehicle passes in the lane, the infrared detection device will receive a signal value; set the distance L between adjacent infrared detection devices, According to the distance L, arrange n infrared detection devices side by side directly above the center of the lane of the urban tunnel; the distance L in this embodiment is taken as the minimum distance between the front of the car, calculated according to the design speed, and can be appropriately increased and rounded to facilitate construction.
  • the value is 10m, and the layout is shown in Figure 1 and Figure 2.
  • the display state of the lane dividing line is adjusted.
  • the a in this embodiment is set to 5, that is: when a certain infrared detection device X i in the urban tunnel detects a vehicle passing signal, the driving direction is extended, if the adjacent X i in the front of the driving direction is within t If none of +1 , Xi +2 , Xi +3 , Xi +4 , and Xi +5 detects a vehicle passing signal, the vehicle is judged to be a tortoise-speed vehicle.
  • the state of the white solid line is maintained. If it was a white dashed line before, the white dashed line needs to be converted into a white solid line.
  • the setting of time t in this embodiment should mainly consider the problem of system misjudgment. For example, when the infrared detection device X i detects that a vehicle is passing at a certain moment, there is a motor vehicle at a distance of 50m in front, but it is located between the two infrared detection devices. The vehicle ahead is not detected. Therefore t should satisfy:
  • v m is the driving speed of the tortoise-speed vehicle (km/h); I m is the body length (m); v is the normal driving speed of the vehicle (km/h).
  • L is 10m
  • the normal running speed of the vehicle is 60km/h
  • the running speed of the tortoise-speed vehicle is 40km/h
  • the body length is 4m.
  • the value of t is 0.5s when substituted into the calculation.
  • the lane demarcation line in this embodiment is a variable marking line.
  • the lane demarcation line in the tunnel is a solid white line, that is, it is forbidden to change lanes and overtaking; when the system detects the target turtle speed vehicle, the lane demarcation line becomes a white dashed line , Allowing vehicles behind to change lanes and overtaking, try to avoid the impact of tortoise-speed vehicles on the tunnel capacity.
  • the lane dividing line is designed as a white LED light box type.
  • the size refers to the provisions of "Road Traffic Signs and Markings" (GB5768).
  • Each LED light box ie, the above LED indicator
  • the width is 15cm (as shown in Figure 3).
  • the LED light box is fully lit, which means it is a white solid line state, and lane change and overtaking are prohibited; when the system is started, the LED light box is lit at intervals, that is, it displays a white dashed solid line state, allowing lane change and overtaking.
  • the infrared detection device of this embodiment and the lane dividing line formed by m LED indicators arranged in sequence are both set in the middle section of the urban tunnel.
  • n infrared detection devices can be installed side by side directly above the required lanes and the lane demarcation line with variable markings can be set on the lane demarcation line corresponding to the lane.
  • Both the infrared detection device and the LED indicator of this embodiment are connected with a power supply system and a control system.
  • the power supply system is used to supply real-time power to the infrared detection device and the LED indicator.
  • the control system is used to receive and analyze signals from the infrared detection device in real time. Adjust the lighting state of the LED indicator.
  • This embodiment adjusts the display state of the lane dividing line in the urban tunnel in real time according to whether there is a tortoise-speed vehicle on the road, improves the passage efficiency of the tunnel, and avoids the influence of the tortoise-speed vehicle on the tunnel capacity.
  • the protection scope of the present invention includes, but is not limited to, the above embodiments.
  • the protection scope of the present invention is subject to the claims. Any substitutions, modifications, and improvements that can be easily conceived by those skilled in the art will fall into the protection scope of the present invention. .

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  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

一种城市隧道可变车道分界线的控制方法，包括：设定相邻红外探测装置之间的间距，将n个红外探测装置并排布置于城市隧道的车道中心正上方；当城市隧道内的某个红外探测装置检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻a个红外探测装置均没有检测到有车辆通过信号，则将车辆判断为龟速车辆，将全部点亮的m个LED指示灯变换为间隔点亮。城市隧道可变车道分界线的控制方法可以判断道路上是否存在龟速车辆，实时调整城市隧道内的车道分界线的显示状态，提高城市隧道通行效率，避免了龟速车辆对城市隧道通行能力造成的影响。

Description

一种城市隧道可变车道分界线的控制方法 发明领域
本发明涉及一种城市隧道设施，尤其涉及一种城市隧道可变车道分界线的控制方法。
背景发明
目前，随着经济的发展和社会的进步，城市人口增多，汽车数量持续增加，很多城市隧道通行能力已无法满足日益增长的交通需求，交通拥挤和堵塞现象日益严重。除了汽车数量增加超过了城市隧道的极限外，城市隧道内的龟速车辆也是造成城市隧道通行能力不足的原因之一。
随着智能交通发明的不断发展，利用智能控制发明对城市隧道的车道分界线进行智能调整，能最大限度的利用城市隧道的路段资源，以解决城市隧道内的龟速车辆造成的城市隧道通行能力不足的问题。
发明内容
本发明所要解决的发明问题是针对上述现有发明的不足提供一种城市隧道可变车道分界线的控制方法，本城市隧道可变车道分界线的控制方法可以判断道路上是否存在龟速车辆，实时调整城市隧道内的车道分界线的显示状态，提高城市隧道通行效率，避免了龟速车辆对城市隧道通行能力造成的影响。
为实现上述发明目的，本发明采取的发明方案为：
一种城市隧道可变车道分界线的控制方法，包括n个红外探测装置以及由m个LED指示灯依次排列形成的车道分界线，n个红外探测装置布置于城市隧道的车道中心正上方，当m个LED指示灯全部点亮时，车道分界线为白色实线，当m个LED指示灯间隔点亮时，车道分界线为白色虚线；
所述控制方法包括以下步骤：
步骤1：设定相邻红外探测装置之间的间距L，根据间距L依次将n个红外探测装置并排布置于城市隧道的车道中心正上方；
步骤3：当城市隧道内的某个红外探测装置检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻a个红外探测装置均没有检测到有车辆通过信号，则将车辆判断为龟速车辆，执行步骤4；否则，m个LED指示灯保持全部点亮状态，禁止变道；
步骤4：将全部点亮的m个LED指示灯变换为间隔点亮，即将白色实线变换为白色虚线， 允许变道超车。
作为本发明进一步改进的发明方案，所述的步骤3中的t应满足：
Figure PCTCN2020096209-appb-000001
其中v m为龟速车辆的行车速度(km/h)；I m为车身长度(m)；v为车辆正常行驶速度(km/h)。
作为本发明进一步改进的发明方案，所述间距L为10m，n个所述红外探测装置分别为X 1、X 2、X 3……X i……X n-1；
所述的步骤3具体为：
当城市隧道内的某个红外探测装置X i检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻的X i+1、X i+2、X i+3、X i+4、X i+5均没有检测到有车辆通过信号，则将车辆判断为龟速车辆，执行步骤4；否则，m个LED指示灯一直保持全部点亮状态，禁止变道。
作为本发明进一步改进的发明方案，每个所述LED指示灯的长度为400cm，宽度为15cm。
作为本发明进一步改进的发明方案，所述红外探测装置与由m个LED指示灯依次排列形成的车道分界线均设置于城市隧道的中间路段。
本发明的有益效果为：本发明的控制方法可以判断道路上是否存在龟速车辆，并根据判断结果实时调整城市隧道内的车道分界线的显示状态，若存在龟速车辆，可将车道分界线变换为白色虚线，允许车辆变道超车，提高隧道通行效率，尽可能的避免了龟速车辆对隧道通行能力造成的影响。
附图说明
图1为本实施例红外探测装置的立面布置图。
图2为本实施例部分红外探测装置的纵向布置图。
图3为本实施例LED指示灯的纵向布置图。
具体实施方式
下面根据图1至图3对本发明的具体实施方式作出进一步说明：
本实施例主要分为两部分，一部分为在车道上方布置红外探测装置，主要目的是判断行驶车辆是否为龟速车辆，另一部分为可变标线的车道分界线，正常情况下该车道分界线显示为白色实线，禁止超车；当系统中判断有龟速车辆时，则显示为白色虚线，允许车辆变道超车。下面对本实施例的方案进行具体描述。
本实施例提供一种城市隧道可变车道分界线的控制方法，包括n个红外探测装置以及由m 个LED指示灯依次排列形成的车道分界线，该车道分界线为可变标线的车道分界线；当m个LED指示灯全部点亮时，车道分界线为白色实线，当m个LED指示灯间隔点亮时，车道分界线为白色虚线；其中n个红外探测装置布置于城市隧道的车道中心正上方，n个红外探测装置分别标记为X 1、X 2、X 3……X i……X n-1。
本实施例的控制方法包括以下步骤：
(1.1)红外探测装置并排布置于城市隧道的车道中心正上方，车道中每通过一辆车，则红外探测装置就会收到一个信号值；设定相邻红外探测装置之间的间距L，根据间距L依次将n个红外探测装置并排布置于城市隧道的车道中心正上方；本实施例的间距L取车头最小间距值，按设计车速计算，可适当增大取整以便于施工，可取值为10m，布置如图1和图2所示。
(1.2)当城市隧道内的某个红外探测装置检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻a个红外探测装置均没有检测到有车辆通过信号，则将车辆判断为龟速车辆，将全部点亮的m个LED指示灯变换为间隔点亮，即将白色实线变换为白色虚线，允许变道超车；否则，m个LED指示灯保持全部点亮状态，禁止变道。
为保证隧道交通安全，设定龟速车辆进入隧道中间段且与前方车辆车头间距达到50m时，调整车道分界线的显示状态。基于此，本实施例的a取5，即：当城市隧道内的某个红外探测装置X i检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻的X i+1、X i+2、X i+3、X i+4、X i+5均没有检测到有车辆通过信号，则将车辆判断为龟速车辆。本实施例在没有检测到龟速车辆时，保持白色实线状态，若之前为白色虚线，则需将白色虚线变换为白色实线。
本实施例中时间t的设置主要应考虑系统误判问题，例如某时刻红外探测装置X i检测有车辆通过时，前方50m距离内存在机动车，但其位于两个红外探测装置中间因而该时刻未检测到前方车辆。因此t应满足：
Figure PCTCN2020096209-appb-000002
其中v m为龟速车辆的行车速度(km/h)；I m为车身长度(m)；v为车辆正常行驶速度(km/h)。本实施例的L取值为10m，车辆正常行驶速度为60km/h，龟速车辆行驶速度为40km/h，车身长度为4m，代入计算t取值0.5s。
本实施例的车道分界线为可变标线，正常情况下隧道内的车道分界线为白实线，即禁止变道超车；当系统检测到目标龟速车辆时，车道分界线变为白色虚线，允许后方车辆变道超车，尽量避免龟速车辆对隧道通行能力的影响。基于此功能，本实施例将车道分界线设计为 白色LED灯箱型式，尺寸参照《道路交通标志和标线》(GB5768)的规定，每个LED灯箱(即上文中的LED指示灯)长度为400cm，宽度为15cm(如图3所示)。正常情况下，LED灯箱呈全亮状态，即表示为白色实线状态，禁止变道超车；系统启动时，LED灯箱呈间隔点亮状态，即显示白色虚实线状态，允许变道超车。
本实施例的红外探测装置与由m个LED指示灯依次排列形成的车道分界线均设置于城市隧道的中间路段。
可以按照本实施例的上述方法并根据城市隧道内的车道数量，在需要的车道的正上方并排安装n个红外探测装置以及该车道对应的车道分界线上设置可变标线的车道分界线。本实施例的红外探测装置和LED指示灯均连接有供电系统和控制系统，供电系统用于为红外探测装置和LED指示灯实时供电，控制系统用于实时接收红外探测装置的信号并分析从而实时调整LED指示灯的点亮状态。
本实施例根据道路上是否存在龟速车辆，从而实时调整城市隧道内的车道分界线的显示状态，提高隧道通行效率，避免了龟速车辆对隧道通行能力造成的影响。
本发明的保护范围包括但不限于以上实施方式，本发明的保护范围以权利要求书为准，任何对本发明做出的本领域人员容易想到的替换、变形、改进均落入本发明的保护范围。

Claims (5)

  1. 一种城市隧道可变车道分界线的控制方法，其特征在于，包括n个红外探测装置以及由m个LED指示灯依次排列形成的车道分界线，n个红外探测装置布置于城市隧道的车道中心正上方，当m个LED指示灯全部点亮时，车道分界线为白色实线，当m个LED指示灯间隔点亮时，车道分界线为白色虚线；
    所述控制方法包括以下步骤：
    步骤1：设定相邻红外探测装置之间的间距L，根据间距L依次将n个红外探测装置并排布置于城市隧道的车道中心正上方；
    步骤3：当城市隧道内的某个红外探测装置检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻a个红外探测装置均没有检测到有车辆通过信号，则将车辆判断为龟速车辆，执行步骤4；否则，m个LED指示灯保持全部点亮状态，禁止变道；
    步骤4：将全部点亮的m个LED指示灯变换为间隔点亮，即将白色实线变换为白色虚线，允许变道超车。
  2. 根据权利要求1所述的城市隧道可变车道分界线的控制方法，其特征在于，所述的步骤3中的t应满足：
    Figure PCTCN2020096209-appb-100001
    其中v m为龟速车辆的行车速度(km/h)；I m为车身长度(m)；v为车辆正常行驶速度(km/h)。
  3. 根据权利要求1所述的城市隧道可变车道分界线的控制方法，其特征在于，所述间距L为10m，n个所述红外探测装置分别为X 1、X 2、X 3……X i……X n-1；
    所述的步骤3具体为：
    当城市隧道内的某个红外探测装置X i检测有车辆通过信号时，顺延行车方向，若在t时间内行车方向前方的相邻的X i+1、X i+2、X i+3、X i+4、X i+5均没有检测到有车辆通过信号，则将车辆判断为龟速车辆，执行步骤4；否则，m个LED指示灯一直保持全部点亮状态，禁止变道。
  4. 根据权利要求1所述的城市隧道可变车道分界线的控制方法，其特征在于，每个所述LED指示灯的长度为400cm，宽度为15cm。
  5. 根据权利要求1所述的城市隧道可变车道分界线的控制方法，其特征在于，所述红外探测装置与由m个LED指示灯依次排列形成的车道分界线均设置于城市隧道的中间路段。
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