CN111882892A - Intelligent control device and method for signal lamp timing of main road and secondary road intersection - Google Patents
Intelligent control device and method for signal lamp timing of main road and secondary road intersection Download PDFInfo
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- CN111882892A CN111882892A CN202010803641.6A CN202010803641A CN111882892A CN 111882892 A CN111882892 A CN 111882892A CN 202010803641 A CN202010803641 A CN 202010803641A CN 111882892 A CN111882892 A CN 111882892A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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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
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
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Abstract
The invention discloses an intelligent control device and method for timing of signal lamps at intersections of main and secondary main roads, which comprises monitoring roadside equipment, a geomagnetic detection coil, signal lamps and intelligent timing controllers for the signal lamps of the main and secondary main roads; the method comprises the steps that a geomagnetic coil, a millimeter wave radar and an infrared detection sensor are used for monitoring queuing waiting conditions and arrival conditions of motor vehicles and non-motor vehicles at each entrance of an intersection in real time, and a data basis is provided for a signal machine controller to perform priority control on a main road; the priority passing of the main road is considered, the passing requirements of motor vehicles and non-motor vehicles of the secondary main road are considered, the priority passing rights of the vehicles and the pedestrians of the secondary main road can be guaranteed by using a control program while the passing rights of the vehicles and the pedestrians of the secondary main road are guaranteed, the duration of the green light of the secondary main road can be automatically distributed to the duration of the green light of the main road under the condition that no vehicle passes in the duration of the green light of the secondary main road, the waste of the duration of the green light of the secondary main road is avoided, and the intersection of the main/secondary main road has higher intelligence.
Description
Technical Field
The invention belongs to the technical field of traffic control, and particularly relates to an intelligent control device and method for signal lamp timing of intersections of main roads and secondary roads.
Background
Along with the rapid increase of the traffic flow and the pedestrian flow of the road, the traffic jam degree of the urban road is more and more serious, and the traffic traveling efficiency of people is lower and lower. Particularly, the main road can be jammed in some intersections of the main road and the secondary main roads, but the secondary main roads have no phenomenon that vehicles wait for pedestrians, so that green light timing of the secondary main roads can be wasted, the passing efficiency of the main road is seriously reduced, and a control system capable of intelligently adjusting a signal light timing scheme according to traffic flow and pedestrian flow is urgently needed under the condition. The signal lamp timing intelligent optimization control system is required to detect the traffic flow, the pedestrian flow, the vehicle queuing, the pedestrian waiting and the current signal lamp timing state of a main/secondary main road; the intelligent control system is required to intelligently adjust the timing scheme of the traffic lights of the main/secondary trunk roads in real time according to the conditions of traffic flow and pedestrian flow; the intelligent control system is required to have low reconstruction construction difficulty, small occupied area, low cost, high accuracy and high intelligent degree on the existing intersection control system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an intelligent control device and method for signal lamp timing of intersections of a main road and a secondary road.
The invention is realized by the following technical scheme:
an intelligent control device for signal lamp timing at intersections of a main road and a secondary road comprises monitoring roadside equipment, a geomagnetic detection coil, a signal lamp and an intelligent timing controller for the signal lamps of the main road and the secondary road;
the monitoring road side equipment comprises secondary main road monitoring road side equipment and main road monitoring road side equipment;
the secondary trunk road monitoring road side equipment comprises a first upright post, a first cross beam, a secondary trunk road infrared inductor and a secondary trunk road millimeter wave radar, wherein the first upright post is arranged on a right side road of the secondary trunk road, the first cross beam is arranged on the first upright post, and the secondary trunk road infrared inductor and the secondary trunk road millimeter wave radar are arranged on the first cross beam;
the main road monitoring road side equipment comprises a second upright post, a second cross beam, a main road infrared inductor and a main road millimeter wave radar, wherein the second upright post is arranged on a non-mechanical isolation belt on the right side of the main road, the second cross beam is arranged on the second upright post, and the main road infrared inductor and the main road millimeter wave radar are arranged on the second cross beam;
the geomagnetic detection coils comprise secondary main road geomagnetic coils and main road geomagnetic coils, the secondary main road geomagnetic coils are respectively arranged below waiting area road surfaces on the right side of the opposite secondary main road and behind the pedestrian crossing, and the main road geomagnetic coils are respectively arranged below waiting area road surfaces on the right side of the opposite main road and behind the pedestrian crossing;
the signal lamps comprise main road motor vehicle signal lamps, main road pedestrian signal lamps, secondary main road motor vehicle signal lamps and secondary main road pedestrian signal lamps;
the intelligent timing controller of the signal lamps of the main and secondary main roads is in wireless communication with the geomagnetic detection coils, and vehicle queuing information of the main and secondary main roads is acquired through the geomagnetic sensor wireless transmission module; the intelligent timing controller of the main trunk signal lamp and the secondary trunk signal lamp is in wireless communication with the main trunk infrared sensor, the main trunk millimeter wave radar, the secondary trunk infrared sensor and the secondary trunk millimeter wave radar, and is used for collecting vehicle arrival information collected by the infrared sensors and the millimeter wave radar at each position and pedestrian or non-motor vehicle queuing and arrival information.
In the technical scheme, the secondary trunk road monitoring road side equipment is further provided with a first light supplement lamp and a first electronic police.
In the above technical scheme, the main road monitoring road side equipment is further provided with a second light supplement lamp and a second electronic police.
An intelligent control method for signal lamp timing of main and secondary road intersections is carried out according to the following rules:
when the geomagnetic coil of the first main road or the geomagnetic coil of the second main road detects that no vehicle waits in the secondary main road, no vehicle enters the secondary main road within 10 meters by the bidirectional millimeter wave radar detection, no non-motor vehicle (pedestrian) waits within 5 meters by the bidirectional infrared sensor of the secondary main road, and no non-motor vehicle (pedestrian) enters the secondary main road within 10 meters by the bidirectional infrared sensor of the secondary main road; the signal lamp of the main road keeps the green lamp passing continuously;
when the geomagnetic coil of the first main road or the geomagnetic coil of the second main road detects that no vehicle is waiting on the main road, no vehicle is driven into the main road within 10 meters detected by the bidirectional millimeter wave radar of the main road, no non-motor vehicle (pedestrian) is waiting within 5 meters detected by the bidirectional infrared sensor of the main road, and no non-motor vehicle (pedestrian) is driven into the main road within 10 meters detected by the bidirectional infrared sensor of the main road; keeping the main trunk signal lamp and the secondary trunk signal lamp to operate according to the inherent signal timing rule;
when a first main road geomagnetic coil or a second main road geomagnetic coil detects that a vehicle waits for a secondary main road, or the secondary main road bidirectional millimeter wave thunder detects that the vehicle drives into the secondary main road within 10 meters of any direction, or a secondary main road infrared detector detects that a non-motor vehicle (pedestrian) waits within 5 meters of any direction, or a secondary main road infrared sensor detects that the non-motor vehicle (pedestrian) drives into the secondary main road within 5 meters of any direction, and the main road has a green light duration longer than an inherent green light configuration duration, switching main/secondary main road traffic lights (the secondary main road is changed into the green light and the main road is changed into the red light);
when the geomagnetic coil of the first main road or the geomagnetic coil of the second main road detects that a vehicle waits on the secondary main road, or a millimeter wave thunder detects that the vehicle drives in within 10 meters, or an infrared detector detects that a non-motor vehicle (pedestrian) waits within 5 meters, or an infrared sensor detects that the non-motor vehicle (pedestrian) drives in within 5 meters, and the main road has a continuous green light time not longer than the inherent green light time of the main road, the green light of the main road is continuously operated according to the inherent signal timing rule after the green light time of the main road is completely set.
The invention has the advantages and beneficial effects that:
1. the intelligent control system utilizes the geomagnetic coil, the millimeter wave radar and the infrared detection sensor to monitor the queuing waiting condition and the arrival condition of the motor vehicles and the non-motor vehicles at each entrance of the intersection in real time, and provides a data basis for the signal machine controller to carry out priority control on the main road.
2. Each sensor installation degree of difficulty and transformation work volume are lower relatively among this intelligence control system, can carry out millimeter wave radar and infrared sensor's installation with the help of the installation basis of crossing electronic police camera, and the signal lamp threading pipe that has now with the help of the crossing lays wire, carries out the installation of controller with the help of original semaphore machine case.
3. The quantity of geomagnetic coils, millimeter wave radar sensors and infrared detection sensors in the intelligent control system is limited, and the price of the sensors in the market is not high, so that the hardware cost is low.
4. The priority traffic of the main road is considered in the control program during signal lamp timing in the intelligent control system, the traffic requirements of motor vehicles and non-motor vehicles on the secondary main road are also considered, and the priority traffic of the vehicles and pedestrians on the main road can be ensured by using the control program while the traffic rights of the vehicles and the pedestrians on the secondary main road are ensured.
5. Under the condition that no vehicle is in the green light of the secondary trunk road and no vehicle is in the traffic state, the green light of the secondary trunk road can be automatically distributed to the green light of the main trunk road, the waste of the green light of the secondary trunk road is avoided, and the primary/secondary trunk road intersection has higher intelligence.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of secondary trunk road monitoring roadside equipment.
Fig. 3 is a schematic structural diagram of the main road monitoring roadside device.
Fig. 4 is a schematic diagram of the connection of the intelligent timing controller interface of the main trunk signal lamp and the secondary trunk signal lamp.
Wherein: the system comprises a first main road geomagnetic coil 1, a second main road geomagnetic coil 2, a first main road geomagnetic coil 3, a second main road geomagnetic coil 4, a secondary main road monitoring roadside device 5-1, a first upright post 5-2, a first cross beam 5-3, a secondary main road infrared inductor 5-4, a secondary main road millimeter wave radar 5-5, a first light supplement lamp 5-6, a first electronic police 6, a main road monitoring roadside device 6-1, a second upright post 6-2, a second cross beam 6-3, a main road infrared inductor 6-3, a main road millimeter wave radar 6-4, a second light supplement lamp 6-5 and a second electronic police 6-6.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.
Examples
An intelligent optimization control system for signal timing of main and secondary main road intersection comprises: vehicle queue detection device, vehicle arrival detection device, pedestrian or non-motor vehicle queue detection device and pedestrian or non-motor vehicle arrival detection device.
The vehicle queuing detection device is realized by mounting a geomagnetic detection coil under the road surface of each motor vehicle lane, and the geomagnetic coil can transmit the flow of the motor vehicles on the lanes to the controller through a built-in wireless transmission module.
The vehicle arrival detection device is realized by mounting a stand column and a cross beam on the side surface of a road and mounting a millimeter wave radar on the cross beam above a motor vehicle lane.
The pedestrian or non-motor vehicle queuing detection device is realized by mounting an upright post and a cross beam on the side surface of a road and mounting an infrared detection sensor on the cross beam above a lane.
The pedestrian or non-motor vehicle arrival detection device is realized by using an infrared induction sensor and a millimeter wave radar which are arranged on a cross beam.
In the system, the detection devices are required to be arranged at the four entrances of the main and secondary road intersections to detect the queuing state and the arrival state of the motor vehicles and the non-motor vehicles at each entrance and transmit the state set to the signal lamp controller. The control lines of the millimeter wave radar sensors and the infrared detection sensors at each entrance of the intersection are wired underground and connected to the controller through the threading pipes, and the controller is installed in the intersection annunciator case.
In the system, a signal machine controller is installed in a case of the signal machine, and the signal machine controller collects queuing states and arrival states of motor vehicles and non-motor vehicles at each inlet and controls traffic lights at main/secondary main road intersections.
In this embodiment, the installation positions of the sensors, specifically, the distances from the sensors and the geomagnetic coil to the entrance stop line, the installation height right above the road surface, and the distance to the edge stone of the road, need to be determined according to the actual size widths, the number of lanes, the traffic flow, the actual conditions of the pedestrian flow, the control time period, and the priority traffic level of the main road.
In this embodiment, the distance between the geomagnetic coil under each traffic lane of the main road and the stop line is 4 meters (the default queuing length of one vehicle is 6 meters), and at this time, as long as 1 vehicle on the main road stops waiting for the geomagnetic field, the information is uploaded to the traffic signal controller, so as to ensure the priority right of way of the main road.
In this embodiment, the distance between the geomagnetic coil and the stop line under the traffic lane of the secondary main road is 10 meters (the default queuing length of one vehicle is 6 meters), and at this time, 2 vehicles in the secondary main road can wait for the geomagnetic coil to upload the information to the main controller when stopping, so as to ensure the right of way of the vehicles in the secondary main road.
In this embodiment, the main road millimeter wave radar and the infrared detection sensor are installed on a cross beam right above a road 6 m behind a stop line, and are respectively used for detecting the arrival conditions of motor vehicles and pedestrians within 10 m behind the stop line of the main road through adjustment of installation angles, and detecting whether a waiting condition exists.
In this embodiment, the millimeter wave radar and the infrared detection sensor of the secondary main road are installed on a cross beam right above a road 6 m behind a stop line, and are respectively used for detecting the arrival conditions of motor vehicles and pedestrians within 10 m behind the stop line of the secondary main road through the adjustment of the installation angle, and detecting whether a waiting condition exists.
In order to make the technical field of people better understand the scheme of the invention, the intelligent control process of signal lamp timing at the intersection of the main/secondary main roads is given below to further explain the technical scheme of the invention, and the invention gives the control logic of the intelligent controller in the form of conditional statements.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (4)
1. The utility model provides a main, time-sharing intelligent control device of secondary trunk road intersection signal lamp, its characterized in that: the intelligent timing controller comprises monitoring roadside equipment, a geomagnetic detection coil, a signal lamp, a main trunk signal lamp and a secondary trunk signal lamp;
the monitoring road side equipment comprises secondary main road monitoring road side equipment and main road monitoring road side equipment;
the secondary trunk road monitoring road side equipment comprises a first upright post, a first cross beam, a secondary trunk road infrared inductor and a secondary trunk road millimeter wave radar, wherein the first upright post is arranged on a right side road of the secondary trunk road, the first cross beam is arranged on the first upright post, and the secondary trunk road infrared inductor and the secondary trunk road millimeter wave radar are arranged on the first cross beam;
the main road monitoring road side equipment comprises a second upright post, a second cross beam, a main road infrared inductor and a main road millimeter wave radar, wherein the second upright post is arranged on a non-mechanical isolation belt on the right side of the main road, the second cross beam is arranged on the second upright post, and the main road infrared inductor and the main road millimeter wave radar are arranged on the second cross beam;
the geomagnetic detection coils comprise secondary main road geomagnetic coils and main road geomagnetic coils, the secondary main road geomagnetic coils are respectively arranged below waiting area road surfaces on the right side of the opposite secondary main road and behind the pedestrian crossing, and the main road geomagnetic coils are respectively arranged below waiting area road surfaces on the right side of the opposite main road and behind the pedestrian crossing;
the signal lamps comprise main road motor vehicle signal lamps, main road pedestrian signal lamps, secondary main road motor vehicle signal lamps and secondary main road pedestrian signal lamps;
the intelligent timing controller of the signal lamps of the main and secondary main roads is in wireless communication with the geomagnetic detection coils, and vehicle queuing information of the main and secondary main roads is acquired through the geomagnetic sensor wireless transmission module; the intelligent timing controller of the main trunk signal lamp and the secondary trunk signal lamp is in wireless communication with the main trunk infrared sensor, the main trunk millimeter wave radar, the secondary trunk infrared sensor and the secondary trunk millimeter wave radar, and is used for collecting vehicle arrival information collected by the infrared sensors and the millimeter wave radar at each position and pedestrian or non-motor vehicle queuing and arrival information.
2. The intelligent control device for signal timing of the intersections of the main road and the secondary road as claimed in claim 1, is characterized in that: and the secondary trunk monitoring road side equipment is also provided with a first light supplement lamp and a first electronic police.
3. The intelligent control device for signal timing of the intersections of the main road and the secondary road as claimed in claim 1, is characterized in that: and a second light supplement lamp and a second electronic police are further arranged on the main road monitoring road side equipment.
4. An intelligent control method for signal lamp timing at intersections of main roads and secondary roads is characterized by being carried out according to the following rules:
when the geomagnetic coil of the first main road or the geomagnetic coil of the second main road detects that no vehicle waits in the secondary main road, no vehicle enters the secondary main road within 10 meters by bidirectional millimeter wave thunder detection, no non-motor vehicle or pedestrian waits within 5 meters by the bidirectional infrared sensor of the secondary main road, and no non-motor vehicle or pedestrian enters the secondary main road by the bidirectional infrared sensor of the secondary main road within 10 meters; the signal lamp of the main road keeps the green lamp passing continuously;
when the geomagnetic coil of the first main road or the geomagnetic coil of the second main road detects that no vehicle is waiting on the main road, no vehicle is driven into the main road within 10 meters detected by the bidirectional millimeter wave radar of the main road, no non-motor vehicle or pedestrian is waiting within 5 meters detected by the bidirectional infrared sensor of the main road, and no non-motor vehicle or pedestrian is driven into the main road within 10 meters detected by the bidirectional infrared sensor of the main road; keeping the main trunk signal lamp and the secondary trunk signal lamp to operate according to the inherent signal timing rule;
when a first main road geomagnetic coil or a second main road geomagnetic coil detects that a vehicle waits for a secondary main road, or a vehicle drives into the secondary main road within 10 meters of any direction of bidirectional millimeter wave thunder detection, or a secondary main road infrared detector detects that a non-motor vehicle or a pedestrian waits for the secondary main road within 5 meters of any direction, or a secondary main road infrared sensor detects that a non-motor vehicle or a pedestrian drives into the secondary main road within 5 meters of the secondary main road, and the main road has a green light duration longer than the inherent green light configuration time duration, switching a main/secondary main road traffic light, changing the secondary main road into a green light, and changing the main road into a red light;
when the geomagnetic coil of the first main road or the geomagnetic coil of the second main road detects that a vehicle waits on the secondary main road, or a millimeter wave thunder detects that the vehicle drives in within 10 meters, or an infrared detector detects that a non-motor vehicle or a pedestrian waits within 5 meters, or an infrared sensor detects that the non-motor vehicle or the pedestrian drives in within 5 meters, and the main road has a continuous green light time not longer than the inherent green light of the main road, the green light of the main road is continuously operated to the complete green light timing and then is operated according to the inherent signal timing rule.
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| CN114049780A (en) * | 2021-11-09 | 2022-02-15 | 南京慧尔视智能科技有限公司 | Traffic signal lamp control method and system based on radar |
| CN114220280A (en) * | 2021-12-12 | 2022-03-22 | 李会江 | Controllable traffic signal lamp for man and vehicle |
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