CN217467830U - City express way passenger-cargo lane dynamic control system - Google Patents
City express way passenger-cargo lane dynamic control system Download PDFInfo
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- CN217467830U CN217467830U CN202220609117.XU CN202220609117U CN217467830U CN 217467830 U CN217467830 U CN 217467830U CN 202220609117 U CN202220609117 U CN 202220609117U CN 217467830 U CN217467830 U CN 217467830U
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Abstract
A dynamic control system for the passenger and goods lane separation of an urban expressway comprises a control center, a radar vision composite detector and a portal type variable information publishing device, wherein the portal type variable information publishing device comprises a variable information board, a vehicle type display component, a lane indication component and a variable speed limit component. The control center receives traffic flow information collected by the radar vision composite detector and transmits the control information to the portal type variable information publishing equipment, wherein the variable information board receives the control information to publish and display traffic guidance information, the lane indicating component receives the control information to open or close a lane, the vehicle type displaying component receives the control information to display lane limitation vehicle types, and the variable speed limiting component receives the control information to publish a speed limit value. The system can realize dynamic lane control and speed control based on factors such as traffic flow state and the like.
Description
Technical Field
The utility model relates to an intelligent transportation control system technical field, concretely relates to city expressway passenger-cargo lane dynamic control system.
Background
In order to reduce and prevent the traffic accidents of the urban expressway with extra-heavy weight and protect the safety of the economic and property of people in the society, an effective solution in the urban expressway is passenger-cargo separation driving. The passenger-cargo separation driving means that the passenger car and the freight car are driven in different lanes in road transportation, namely, relatively independent driving lanes are built according to the type of the vehicle and the driving speed, the mode of mixed driving of the passenger car and the freight car is changed, and the passenger-cargo separation driving of the road is realized.
The high-precision traffic flow data obtained by the detector is used for dynamically adjusting a passenger-cargo lane control scheme according to the type of a vehicle and the driving speed, speed limit management and lane control are performed by using a variable information board, the mixed driving mode of passengers and trucks is changed, the passengers and trucks on the road are driven separately, the traffic service capability of the urban expressway can be effectively improved, the traffic supply and demand pressure is relieved, and the safety and the high efficiency of urban expressway operation in China are further ensured.
At present, most researches and applications are static passenger and cargo separation control methods, and the existing urban expressway passenger and cargo lane static control system mainly has the following problems: (1) based on the historical data of road traffic, the application effect of the road traffic system is gradually deteriorated as the traffic volume is rapidly increased year by year and the traffic composition is increasingly complex, assuming that the road and the traffic conditions are kept unchanged for a long period of time, neglecting the unknown property and the variability of the road system, and only being applicable to the condition of simple traffic flow. (2) The cross section of the statically arranged passenger-cargo separation management method has an integral type and a separated type, and the land occupation of roads is increased by the newly added road isolation facilities and the land in the middle of two roads in the separated type cross section. (3) When the road passenger-cargo vehicle adopts a management method of marked line isolation or physical isolation, as the lanes of the truck are fewer and the traffic flow is larger, the driver of the truck driving faster can not drive at the expected speed, illegal behaviors such as overtaking and the like can be generated, the normal driving behavior of the passenger car driver is seriously influenced, meanwhile, the driving load of the driver of a large truck is also increased, the fatigue driving of the truck driver is easily caused, and the adverse effects are easy to cause serious traffic collision accidents.
Disclosure of Invention
An object of the utility model is to provide a city expressway passenger-cargo lane dynamic control system, this system can realize dynamic lane control and speed control based on factors such as traffic flow state.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a city expressway passenger-cargo lane dynamic control system, includes control center, thunder look compound detector and the variable information issuing equipment of portal formula, the variable information issuing equipment of portal formula includes variable information board, vehicle type display module, lane indication subassembly and variable speed limit subassembly, its characterized in that: the control center receives traffic flow information collected by the radar vision composite detector and transmits the control information to the portal type variable information publishing equipment, wherein the variable information board receives the control information to publish and display traffic guidance information, the lane indicating component receives the control information to open or close a lane, the vehicle type displaying component receives the control information to display lane limitation vehicle types, and the variable speed limiting component receives the control information to publish a speed limit value.
Preferably, the door frame type variable information distribution device is arranged on the road surface and spans across the road surface.
Preferably, the radar vision composite detector adopts a monitoring mode of linkage of millimeter wave radar and high-definition video.
Preferably, the variable speed limit component adopts an LED variable speed limit signboard.
Preferably, a variable information sign plate is installed on a top plate of the portal type variable information publishing device, a plurality of signs used for installing a lane indicating component, a variable speed limiting component and a lane type display component are connected in series below the top plate, and a radar vision composite detector is installed between every two signs.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses can take corresponding lane distribution management measure according to road traffic's different changes, can exert the effect in each lane fully, avoid the idle and partial traffic lane of partial lane to block up's bad phenomenon, improve the whole current efficiency of road.
2. The utility model discloses the dynamic management information of release, including speed limit value, lane information, safety warning information etc. can make the traffic flow be in best stable state, and the vehicle that traveles all is in stable following state, reduces unstable states such as vehicle emergency braking, frequent variable speed, reduces driver's manipulation strength, guarantees that the passenger feels comfortable simultaneously.
Drawings
FIG. 1 is a system structure diagram of the present invention;
FIG. 2 is a flow chart of the system control of the present invention;
fig. 3 is a schematic elevation view of the door frame type variable information distribution device of the present invention;
FIG. 4 is a control flow chart of the bidirectional six-lane subsystem of the present invention;
FIG. 5 is a schematic elevation view of a gantry-based variable information distribution apparatus according to an embodiment of the present invention in control scheme 1;
FIG. 6 is a schematic elevation view of a door frame type variable information distribution apparatus according to an embodiment in control scheme 2;
fig. 7 is an elevation view schematically illustrating the door frame type variable information distribution apparatus according to the embodiment in control scenario 3.
In the figure: 1. a radar vision composite detector; 2. a variable information board; 3. a lane type display component 4, a lane indication component; 5. a variable speed limit component; 6. the door frame type variable information issuing equipment.
Detailed Description
In order to make the technical means, objectives and functions of the present invention easy to understand, how to implement the present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1: the utility model provides a following technical scheme: a dynamic control system for the passenger and goods lane separation of an urban expressway comprises a control center, a radar vision composite detector and a portal type variable information publishing device, wherein the portal type variable information publishing device comprises a variable information board, a vehicle type display component, a lane indication component and a variable speed limit component. The control center receives traffic flow information collected by the radar vision composite detector and transmits the control information to the portal type variable information publishing equipment, wherein the variable information board receives the control information to realize publishing and displaying of traffic guidance information, the lane indicating component receives the control information to realize opening or closing of a lane, the vehicle type displaying component receives the control information to realize displaying of lane limitation vehicle types, and the variable speed limiting component receives the control information to publish a speed limit value.
The control center receives traffic flow information collected by the radar vision composite detector, calculates service level by using the traffic flow information collected by the radar vision composite detector, judges whether to start a passenger and cargo lane dynamic control scheme, calculates the ratio of standard truck traffic volume to car traffic volume, selects different lane control modes and speed limit values, and transmits control information back to the portal type variable information issuing equipment for information issuing.
The radar vision composite detector adopts a monitoring mode of linkage of millimeter wave radar and high-definition video, can realize large-area and all-weather detection, and detects traffic data such as lane flow, vehicle speed, occupancy, headway, queuing length and the like.
The variable information board realizes the release and display of traffic guidance information, and the contents mainly comprise: traffic control information, safety prompt and the like, and the release form comprises three modes of combining characters, graphs and pictures. The variable information board requires that the displayed content is clearly visible day and night, under normal conditions, when the vehicle runs at a speed of 100km/h, the displayed information is clearly recognized outside 200 meters under normal weather conditions, and each luminous pixel of the display screen requires uniform light emission without mosaic phenomenon.
The lane indicating component is used for receiving control information transmitted back by the control center and realizing the opening or closing of a lane.
The vehicle type display component is used for receiving the control information transmitted back by the control center and realizing the display of the lane limiting vehicle type.
The variable speed-limiting component adopts an LED variable speed-limiting signboard and is used for receiving speed-limiting information transmitted back by the control center and issuing a speed-limiting value.
The variable information sign board is installed on a top plate of the portal type variable information publishing equipment, a plurality of signs used for installing a lane indicating component, a variable speed limiting component and a lane type display component are connected in series below the top plate, and a radar vision composite detector is installed between every two signs.
As shown in figure 1, the utility model discloses use two-way six lane urban expressway as an example, show unilateral direction road in the picture, the variable information issuing equipment facade of portal formula schematic diagram is shown in figure 3, including variable information board, lane indication subassembly, vehicle type display module, variable speed limit subassembly, thunder look composite detector, equipment evenly arranges in the expressway, and the interval is 2km, divides the expressway into a plurality of highway sections, and the opposite direction lane arrangement mode is the same with this.
The radar vision composite detector adopts a radar vision composite sensing technology, utilizes a monitoring mode of linkage of a millimeter wave radar and a high-definition video, combines the advantages of large vision field, all-weather, accurate sensing and high-definition video visualization of the millimeter wave radar, and has strong real-time sensing information, wide detection range and comprehensive and accurate data. The large-area detection can be realized, 4-8 lanes can be detected simultaneously, and traffic data such as lane flow, vehicle speed, occupancy, headway, queuing length and the like can be detected.
The traffic flow data detected by the detector is transmitted to the control center through a wireless network.
The control center sorts and calculates the acquired data to obtain an optimal control scheme.
The control center transmits the information to the portal variable information publishing equipment through a wireless network: the variable information board mainly realizes the release and display of traffic guidance information, and the content mainly comprises: traffic control information, congestion information, safety prompts and the like, the displayed contents are required to be clearly visible day and night, under the normal condition, when a vehicle runs at the speed of 100km/h, the displayed information is clearly recognized at the position of 200 meters under the normal weather condition, the speed of 40m/s can be resisted, and all luminous pixels of a display screen emit light uniformly without mosaic phenomenon; the lane indicating component receives a control scheme transmitted back by the control center to realize the opening or closing of different lanes; the vehicle type display component receives control information transmitted back by the control center, and displays different lane limit vehicle types; the variable speed-limiting component receives speed-limiting information returned by the control center and issues the speed-limiting value.
Taking a bidirectional six-lane urban expressway as an example, a control flow chart of a passenger-cargo lane dynamic control system is shown in fig. 2, and specifically comprises the following steps:
(1) firstly, a control center judges whether a traffic accident happens in front or not by utilizing traffic flow data acquired by a downstream radar vision composite detector;
(2) if an accident occurs, the variable information board of the upstream door frame type variable information distribution equipment distributes 'the accident cautious and slow running ahead', and the passenger and goods lane separation control is not started.
(3) And if the traffic accident does not occur in the front road section, calculating the road service level by using the traffic flow data of the current road section and the downstream road section.
(4) And if the service level does not meet the starting condition of the passenger-cargo lane control, the passenger-cargo lane control is not carried out, and a default control scheme is kept.
(5) If the service level meets the starting condition of the passenger-cargo lane separation control, the bidirectional six-lane control subsystem is started, the system control flow is as shown in figure 4, the traffic flow data of the road detector is obtained, and the passenger-cargo ratio Ra is calculated, wherein the Ra is Et/Ec, in the formula, Et is the equivalent value converted by the truck into the passenger car, and Ec is the equivalent value converted by other vehicles except the truck into the passenger car. When Ra is less than 1/2, starting a first control scheme, adopting a dividing form of two mixed lanes and one truck lane, and distributing corresponding speed limit values, as shown in figure 5; when Ra is less than 2, starting a second control scheme, adopting a dividing form of one passenger car lane, one mixed traffic lane and one truck lane, and distributing corresponding speed limit values, as shown in figure 6; when Ra is larger than or equal to 2, starting a control scheme III, adopting a dividing form of two mixed lanes and one passenger car lane, and distributing corresponding speed limit values, as shown in figure 7.
(6) And judging whether the control time reaches the preset time, if not, keeping the control scheme unchanged, and otherwise, entering the next period.
The utility model adopts the mature products and the mature technical means in the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a city expressway passenger-cargo lane dynamic control system, includes control center, thunder look composite detector and the variable information issuing equipment of portal formula, the variable information issuing equipment of portal formula includes variable information board, vehicle type display module, lane indication component and variable speed limit component, its characterized in that: the control center receives traffic flow information collected by the radar vision composite detector and transmits the control information to the portal type variable information publishing equipment, wherein the variable information board receives the control information to publish and display traffic guidance information, the lane indicating component receives the control information to open or close a lane, the vehicle type displaying component receives the control information to display lane limitation vehicle types, and the variable speed limiting component receives the control information to publish a speed limit value.
2. The urban expressway passenger-cargo lane dynamic control system according to claim 1, wherein: the portal variable information publishing device is arranged on the road surface and stretches across the road surface.
3. The urban expressway passenger-cargo lane dynamic control system according to claim 1, wherein: the radar vision composite detector adopts a monitoring mode of linkage of millimeter wave radar and high definition video.
4. The urban expressway passenger-cargo lane dynamic control system according to claim 1, wherein: the variable speed-limiting component adopts an LED variable speed-limiting signboard.
5. The urban expressway passenger-cargo lane dynamic control system according to claim 1, wherein: the variable information sign board is installed on a top plate of the portal type variable information publishing equipment, a plurality of signs used for installing a lane indicating component, a variable speed limiting component and a lane type display component are connected in series below the top plate, and a radar vision composite detector is installed between every two signs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220609117.XU CN217467830U (en) | 2022-03-21 | 2022-03-21 | City express way passenger-cargo lane dynamic control system |
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| CN202220609117.XU CN217467830U (en) | 2022-03-21 | 2022-03-21 | City express way passenger-cargo lane dynamic control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116416806A (en) * | 2023-06-12 | 2023-07-11 | 天津市政工程设计研究总院有限公司 | Intelligent network allies oneself with autopilot freight transportation lane control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116416806A (en) * | 2023-06-12 | 2023-07-11 | 天津市政工程设计研究总院有限公司 | Intelligent network allies oneself with autopilot freight transportation lane control system |
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