CN110910631A - Pedestrian crossing control system and pedestrian crossing control method based on multi-source triggering - Google Patents
Pedestrian crossing control system and pedestrian crossing control method based on multi-source triggering Download PDFInfo
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- CN110910631A CN110910631A CN201911211559.8A CN201911211559A CN110910631A CN 110910631 A CN110910631 A CN 110910631A CN 201911211559 A CN201911211559 A CN 201911211559A CN 110910631 A CN110910631 A CN 110910631A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
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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
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- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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Abstract
The invention relates to a pedestrian crossing control system based on multi-source triggering, which comprises a road traffic signal controller, a motor vehicle detector, a pedestrian crossing button and a pedestrian waiting quantity detector, wherein the motor vehicle detector, the pedestrian crossing button and the pedestrian waiting quantity detector are all connected with the road traffic signal controller, and the road traffic signal controller judges whether to respond to the pedestrian crossing request and controls the switching and timing of traffic signals when the road traffic signals are motor vehicle phases or not according to the average traffic flow of lanes of motor vehicles on a road section provided by the motor vehicle detector, the pedestrian crossing request provided by the pedestrian crossing button and the number of waiting pedestrians in a pedestrian waiting area provided by the pedestrian waiting quantity detector. The invention also provides a corresponding pedestrian crossing control method, so as to reduce the influence of frequent pedestrian crossing requests on the release of motor vehicles in conflict phases and avoid the occurrence of road congestion and the like caused by frequent pedestrian crossing.
Description
Technical Field
The invention relates to the technical field of traffic signal control of urban intelligent traffic, in particular to a pedestrian crossing control system and a pedestrian crossing control method based on multi-source triggering.
Background
At present, the main pedestrian street crossing system in the market generally provides a request data source for a road traffic signal controller through a pedestrian contact request, and as the source is too single, the request of multiple persons cannot be distinguished or one person requests for multiple times, a method of taking a compromise between pedestrian release and motor vehicle release under the control of road signals is adopted, and generally, the pedestrian request is immediately responded if the pedestrian request exists after the motor vehicle is released for a certain time. The response mode is simple, the passing efficiency of the motor vehicle is lower, the requirement of the current accurate control can not be met,
therefore, a pedestrian crossing control system capable of meeting the requirement of precise control on the road section is needed.
Disclosure of Invention
The invention mainly aims to solve the problems and the defects in the prior art, and provides a pedestrian crossing control system and a pedestrian crossing control method based on multi-source triggering, which can solve the problems that pedestrians frequently request to release, cause interference to motor vehicles, cause low passing efficiency and the like in urban road sections.
In order to achieve the purpose, the technical scheme of the pedestrian crossing control system based on multi-source triggering adopted by the invention is as follows:
the pedestrian crossing control system comprises a road traffic signal controller, a motor vehicle detector, a pedestrian crossing button and a pedestrian waiting quantity detector, wherein the motor vehicle detector, the pedestrian crossing button and the pedestrian waiting quantity detector are all connected with the road traffic signal controller, and the road traffic signal controller judges whether to respond to the pedestrian crossing request and controls the switching and timing of traffic signals when the road traffic signals are motor vehicle phases or not according to the average traffic flow of lanes of motor vehicles on a road section provided by the motor vehicle detector, the pedestrian crossing request provided by the pedestrian crossing button and the waiting pedestrian quantity in a pedestrian waiting area provided by the pedestrian waiting quantity detector.
Preferably, the road traffic signal controller determines whether to respond to the pedestrian crossing request when the road traffic signal is in the motor vehicle phase, based on the pedestrian crossing request provided by the pedestrian crossing button and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector.
Preferably, the first and second liquid crystal films are made of a polymer,
if no pedestrian crossing request exists and no pedestrian waits, the pedestrian crossing request is not responded;
if no pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
if a pedestrian crossing request exists and no pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
and if the pedestrian crossing request exists and the pedestrian waits, responding to the pedestrian crossing request and switching to the pedestrian phase.
Preferably, the first and second liquid crystal films are made of a polymer,
if no pedestrian crossing request exists and a pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
if a pedestrian crossing request exists and no pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
and if a pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request according to the average traffic of the lanes of the motor vehicles on the road section provided by the motor vehicle detector and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector.
Preferably, the first and second liquid crystal films are made of a polymer,
if the waiting number of the pedestrians is larger than or equal to the preset waiting number of the pedestrians, switching to the pedestrian phase after the timing time of the motor vehicle phase is exceeded so as to respond to the pedestrian crossing request;
if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians, and the average traffic of the lane detected by the motor vehicle detector is more than 60% of the road saturation flow, switching to the pedestrian phase after the second maximum green time of the motor vehicle is exceeded, so as to respond to the request of the pedestrians for crossing the street;
and if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians and the average speed flow of the lane detected by the motor vehicle detector is less than or equal to 60% of the road saturation flow, switching to the pedestrian phase after the third maximum green light time of the motor vehicle is exceeded so as to respond to the request of the pedestrians for crossing the street.
Preferably, the first and second liquid crystal films are made of a polymer,
the timing time of the motor vehicle phase is less than the second maximum street lamp time of the motor vehicle and less than the third maximum street lamp time of the motor vehicle and less than the first maximum street lamp time of the motor vehicle.
The invention also provides a pedestrian crossing control method based on multi-source triggering by utilizing the system, which is mainly characterized by comprising the following steps of:
(1) the pedestrian crossing button provides a pedestrian crossing request, the pedestrian waiting number detector provides the number of waiting pedestrians in a pedestrian waiting area, and the motor vehicle detector provides the average traffic of lanes of motor vehicles on a road section;
(2) the road traffic signal controller judges whether to respond to the pedestrian crossing requirement when the road traffic signal is in the motor vehicle phase,
if no pedestrian crossing request exists and no pedestrian waits, the pedestrian crossing request is not responded;
if no pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
if a pedestrian crossing request exists and no pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
and if the pedestrian crossing request exists and the pedestrian waits, responding to the pedestrian crossing request and switching to the pedestrian phase.
Preferably, in the step (2),
if no pedestrian crossing request exists and a pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
if a pedestrian crossing request exists and no pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
and if a pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request according to the average traffic of the lanes of the motor vehicles on the road section provided by the motor vehicle detector and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector.
Preferably, if there is a pedestrian request to cross the street and there is a pedestrian waiting,
if the waiting number of the pedestrians is larger than or equal to the preset waiting number of the pedestrians, switching to the pedestrian phase after the timing time of the motor vehicle phase is exceeded so as to respond to the pedestrian crossing request;
if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians, and the average traffic of the lane detected by the motor vehicle detector is more than 60% of the road saturation flow, switching to the pedestrian phase after the second maximum green time of the motor vehicle is exceeded, so as to respond to the request of the pedestrians for crossing the street;
and if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians and the average speed flow of the lane detected by the motor vehicle detector is less than or equal to 60% of the road saturation flow, switching to the pedestrian phase after the third maximum green light time of the motor vehicle is exceeded so as to respond to the request of the pedestrians for crossing the street.
Preferably, the timing time of the motor vehicle phase is less than the second maximum street lamp time of the motor vehicle and less than the third maximum street lamp time of the motor vehicle and less than the first maximum street lamp time of the motor vehicle.
The invention has the beneficial effects that:
(1) the pedestrian and motor vehicle conflict can be considered, the motor vehicle clearance is increased as much as possible under the condition that the normal traffic of the pedestrian is ensured, and the time waste and the green light waste caused by phase switching are reduced;
(2) the efficiency of pedestrians crossing the street on the road section can be effectively improved, and the generation of vehicle congestion is reduced;
(3) comprehensive judgment can be carried out in real time according to the flow of different motor vehicles and the waiting quantity of pedestrians, and a balance is sought in the conflict of motor vehicle release and pedestrian release;
(4) the required equipment is less, and the effect is better.
Drawings
Fig. 1 is a judgment flow chart of a pedestrian crossing control method based on multi-source triggering provided by the invention.
Detailed Description
In order to clearly understand the technical contents of the present invention, the following examples are given in detail.
The invention provides a pedestrian crossing control system and a control method based on multi-source triggering, and aims to solve the problems that pedestrians frequently request to release in urban road sections cause interference to motor vehicles, the passing efficiency is low, and the like, so that the influence of the frequent pedestrian crossing requests on the release of motor vehicles in conflict phases is reduced, and the conditions of road section congestion and the like caused by the frequent pedestrian crossing are avoided.
The invention provides a pedestrian crossing control system based on multi-source triggering, which comprises: the device comprises a road traffic signal controller, a motor vehicle detector, a pedestrian crossing button and a pedestrian waiting number detector.
The motor vehicle detector mainly detects the flow data, occupancy data, headway data, vehicle speed data and the like of the motor vehicles on the road section so as to provide the average flow of lanes of the motor vehicles;
the pedestrian crossing button is a pedestrian request crossing button, and the request is sent to the road signal controller for comprehensive judgment and use as long as the pedestrian crosses the street by triggering the pedestrian crossing button;
the pedestrian waiting number detector mainly completes the detection of the number of waiting pedestrians in the pedestrian waiting area and excludes the pedestrians which pass through the pedestrian waiting area but not wait;
the road traffic signal controller mainly completes fusion judgment of various source data and control of motor vehicles, non-motor vehicles and pedestrian traffic signals of road sections.
The road traffic signal controller comprehensively judges whether to respond to the pedestrian crossing requirement by utilizing various data sources provided by the motor vehicle detector, the pedestrian crossing button and the pedestrian waiting number detector, and the road traffic signal controller comprises the following specific steps by combining the figure 1:
(1) the pedestrian crossing button provides whether a pedestrian crossing request exists or not, the pedestrian waiting number detector reports the pedestrian waiting number according to a certain time interval (for example, default of 5 seconds), and the motor vehicle detector reports related data such as motor vehicle flow, vehicle speed and the like according to a certain time interval (for example, default of 1 minute) so as to obtain the average flow of a lane of the motor vehicle;
(2) the road traffic signal controller judges whether to respond to the pedestrian crossing requirement when the road traffic signal is in the motor vehicle phase,
if no pedestrian crossing request exists (namely, no person triggers a pedestrian crossing button) and no pedestrian waits, continuously releasing the motor vehicle phase without responding to the pedestrian crossing request, and repeating the steps (1) to (2);
if no pedestrian crosses the street request (namely, no person triggers a pedestrian crossing button) and a pedestrian waits, switching to a pedestrian phase after the maximum green light time 3 of the motor vehicle phase is released (namely, the motor vehicle phase running time reaches the maximum green light time 3) so as to respond to the pedestrian crossing request, and repeating the steps (1) to (2) when the motor vehicle phase running time does not reach the maximum green light time 3;
if a pedestrian crossing request exists (namely, a pedestrian crossing button is triggered by a person) and no pedestrian waits, switching to a pedestrian phase after the maximum green light time 3 of the motor vehicle phase is released (namely, the motor vehicle phase running time reaches the maximum green light time 3) so as to respond to the pedestrian crossing request, and repeating the steps (1) to (2) when the motor vehicle phase running time does not reach the maximum green light time 3;
if a pedestrian crossing request exists (namely, a pedestrian crosses the street by triggering a pedestrian crossing button), and a pedestrian waits, responding to the pedestrian crossing request according to the average traffic of the lanes of the motor vehicles on the road section provided by the motor vehicle detector and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector, specifically:
if the pedestrian waiting number is larger than or equal to the preset waiting number and the current pedestrian phase is the motor vehicle phase, switching to the pedestrian phase after the timing time of the motor vehicle phase is exceeded to respond to the pedestrian crossing request;
if the waiting number of the pedestrians is less than the preset waiting number of people and the current pedestrian phase is not processed, if the current pedestrian phase is the motor vehicle phase and the average traffic of the lane detected by the motor vehicle detector is more than 60% of the designed saturated traffic of the road, switching to the pedestrian phase after the maximum green light time 1 of the motor vehicle is exceeded to respond to the pedestrian street-crossing request, and repeating the steps (1) to (2) when the running time of the motor vehicle phase does not reach the maximum green light time 1;
if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians and the current phase of the pedestrians is the motor vehicle phase, and the average speed flow of the lane detected by the motor vehicle detector is less than or equal to 60% of the designed saturated flow of the road, switching to the pedestrian phase after the maximum green light time 2 of the motor vehicle is exceeded to respond to the pedestrian street-crossing request, and repeating the steps (1) to (2) when the running time of the motor vehicle phase does not reach the maximum green light time 2.
During the pedestrian release phase, the pedestrian request does not respond, and only the pedestrian release time is determined.
Wherein the motor vehicle phase timing time is less than the motor vehicle maximum street lamp time 1, less than the motor vehicle maximum street lamp time 2 and less than the motor vehicle maximum street lamp time 3.
And after the pedestrian phase executes the response timing time, switching back to the motor vehicle phase.
The invention has the beneficial effects that:
(1) the pedestrian and motor vehicle conflict can be considered, the motor vehicle clearance is increased as much as possible under the condition that the normal traffic of the pedestrian is ensured, and the time waste and the green light waste caused by phase switching are reduced;
(2) the efficiency of pedestrians crossing the street on the road section can be effectively improved, and the generation of vehicle congestion is reduced;
(3) comprehensive judgment can be carried out in real time according to the flow of different motor vehicles and the waiting quantity of pedestrians, and a balance is sought in the conflict of motor vehicle release and pedestrian release;
(4) the required equipment is less, and the effect is better.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (10)
1. A pedestrian crossing control system based on multi-source triggering is characterized by comprising a road traffic signal controller, a motor vehicle detector, a pedestrian crossing button and a pedestrian waiting quantity detector, wherein the motor vehicle detector, the pedestrian crossing button and the pedestrian waiting quantity detector are all connected with the road traffic signal controller, and the road traffic signal controller judges whether to respond to a pedestrian crossing request and controls switching and timing of traffic signals when the road traffic signals are motor vehicle phases or not according to the average traffic flow of lanes of motor vehicles on a road section provided by the motor vehicle detector, the pedestrian crossing request provided by the pedestrian crossing button and the number of waiting pedestrians in a pedestrian waiting area provided by the pedestrian waiting quantity detector.
2. The multi-source trigger-based pedestrian crossing control system according to claim 1, wherein the road traffic signal controller determines whether to respond to the pedestrian crossing request when the road traffic signal is in the motor vehicle phase according to the pedestrian crossing request provided by the pedestrian crossing button and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector.
3. The multi-source trigger-based pedestrian crossing control system of claim 2,
if no pedestrian crossing request exists and no pedestrian waits, the pedestrian crossing request is not responded;
if no pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
if a pedestrian crossing request exists and no pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
and if the pedestrian crossing request exists and the pedestrian waits, responding to the pedestrian crossing request and switching to the pedestrian phase.
4. The multi-source trigger-based pedestrian crossing control system of claim 3,
if no pedestrian crossing request exists and a pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
if a pedestrian crossing request exists and no pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
and if a pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request according to the average traffic of the lanes of the motor vehicles on the road section provided by the motor vehicle detector and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector.
5. The multi-source trigger-based pedestrian crossing control system of claim 4,
if the waiting number of the pedestrians is larger than or equal to the preset waiting number of the pedestrians, switching to the pedestrian phase after the timing time of the motor vehicle phase is exceeded so as to respond to the pedestrian crossing request;
if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians, and the average traffic of the lane detected by the motor vehicle detector is more than 60% of the road saturation flow, switching to the pedestrian phase after the second maximum green time of the motor vehicle is exceeded, so as to respond to the request of the pedestrians for crossing the street;
and if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians and the average speed flow of the lane detected by the motor vehicle detector is less than or equal to 60% of the road saturation flow, switching to the pedestrian phase after the third maximum green light time of the motor vehicle is exceeded so as to respond to the request of the pedestrians for crossing the street.
6. The multi-source trigger-based pedestrian crossing control system of claim 5,
the timing time of the motor vehicle phase is less than the second maximum street lamp time of the motor vehicle and less than the third maximum street lamp time of the motor vehicle and less than the first maximum street lamp time of the motor vehicle.
7. A pedestrian crossing control method based on multi-source triggering by using the system of claim 1, characterized by comprising the following steps:
(1) the pedestrian crossing button provides a pedestrian crossing request, the pedestrian waiting number detector provides the number of waiting pedestrians in a pedestrian waiting area, and the motor vehicle detector provides the average traffic of lanes of motor vehicles on a road section;
(2) the road traffic signal controller judges whether to respond to the pedestrian crossing requirement when the road traffic signal is in the motor vehicle phase,
if no pedestrian crossing request exists and no pedestrian waits, the pedestrian crossing request is not responded;
if no pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
if a pedestrian crossing request exists and no pedestrian waits, responding to the pedestrian crossing request and switching to a pedestrian phase;
and if the pedestrian crossing request exists and the pedestrian waits, responding to the pedestrian crossing request and switching to the pedestrian phase.
8. The method for realizing multi-source trigger-based pedestrian crossing control according to claim 7, wherein in the step (2),
if no pedestrian crossing request exists and a pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
if a pedestrian crossing request exists and no pedestrian waits, switching to a pedestrian phase after the first maximum green light time of the motor vehicle phase is released so as to respond to the pedestrian crossing request;
and if a pedestrian crossing request exists and a pedestrian waits, responding to the pedestrian crossing request according to the average traffic of the lanes of the motor vehicles on the road section provided by the motor vehicle detector and the number of waiting pedestrians in the pedestrian waiting area provided by the pedestrian waiting number detector.
9. The method for realizing the multi-source trigger-based pedestrian crossing control according to claim 8, wherein if there is a pedestrian crossing request and there is a pedestrian waiting,
if the waiting number of the pedestrians is larger than or equal to the preset waiting number of the pedestrians, switching to the pedestrian phase after the timing time of the motor vehicle phase is exceeded so as to respond to the pedestrian crossing request;
if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians, and the average traffic of the lane detected by the motor vehicle detector is more than 60% of the road saturation flow, switching to the pedestrian phase after the second maximum green time of the motor vehicle is exceeded, so as to respond to the request of the pedestrians for crossing the street;
and if the waiting number of the pedestrians is less than the preset waiting number of the pedestrians and the average speed flow of the lane detected by the motor vehicle detector is less than or equal to 60% of the road saturation flow, switching to the pedestrian phase after the third maximum green light time of the motor vehicle is exceeded so as to respond to the request of the pedestrians for crossing the street.
10. The method for realizing the multi-source trigger-based pedestrian street control according to claim 9, wherein the timing time of the motor vehicle phase is less than the second maximum street lamp time of the motor vehicle and less than the third maximum street lamp time of the motor vehicle and less than the first maximum street lamp time of the motor vehicle.
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Cited By (1)
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