CN114038220A - Automatic control system and method for special traffic tasks - Google Patents
Automatic control system and method for special traffic tasks Download PDFInfo
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- CN114038220A CN114038220A CN202111303703.8A CN202111303703A CN114038220A CN 114038220 A CN114038220 A CN 114038220A CN 202111303703 A CN202111303703 A CN 202111303703A CN 114038220 A CN114038220 A CN 114038220A
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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Abstract
The invention belongs to the technical field of intelligent traffic, and discloses a system and a method for automatically controlling special traffic tasks, wherein the system comprises: the system comprises a client, a server and annunciator equipment; the client is used for sending a task application and receiving a message of server task approval; the server is used for receiving the task application sent by the client, making judgment that the application passes or fails and feeding back a judgment result to the client and the annunciator equipment; and the annunciator equipment is used for receiving client information which is sent by the server and passed by the task application and releasing the corresponding intersection for the corresponding client vehicle. The problem of can't intelligent judgement vehicle reach corresponding clearance crossing among the prior art is solved.
Description
Technical Field
The invention belongs to the technical field of intelligent traffic, and particularly relates to an automatic control system and method for special traffic tasks.
Background
The automobile brings convenience to people and brings fast traveling experience. However, more and more vehicles cannot increase the efficiency of people going out without limit. As the number of vehicles increases, the road is more congested, and the time and the times of waiting for traffic lights are obviously increased. This can affect some traffic that cannot be delayed, such as an ambulance carrying a critically ill person, a fire station fighting for minutes and seconds to reach a fire scene.
In the prior art, a traffic signal lamp control system is formed by adopting a single chip microcomputer, so that the human resources can be saved, the system cost can be reduced, and the working efficiency can be effectively improved. However, the traffic signal lamp controlled by the single chip microcomputer involves some practical problems, such as signal driving, vehicle arrival sensing and the like.
Disclosure of Invention
The invention provides an automatic control system for special traffic tasks, which aims to solve the problem that whether a vehicle reaches a corresponding release intersection cannot be intelligently judged in the prior art.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an automatic control system for special traffic tasks comprises a client, a server and annunciator equipment; the client is used for sending a task application and receiving a message of server task approval; the server is used for receiving the task application sent by the client, making judgment that the application passes or fails and feeding back a judgment result to the client and the annunciator equipment; and the annunciator equipment is used for receiving client information which is sent by the server and passed by the task application and releasing the corresponding intersection for the corresponding client vehicle.
Further, the client sends the client information and the task end point while sending the task application.
Further, when the client executes the passed task application, the GPS information is pushed to the server in real time until the task is finished.
Further, the configuration steps to be completed before the whole control system is implemented include:
1) planning an executable area of the whole control system;
2) the longitude and latitude coordinates of all intersection annunciators in the configuration area are configured;
3) configuring longitude and latitude tracing points of each entrance road of the intersection;
4) configuring each entrance road of the intersection to correspond to the exit road of the associated intersection, and simultaneously configuring each exit road of the intersection to correspond to the entrance road of the associated intersection;
5) and configuring signal lamp numbers corresponding to the entry roads to the exit roads of all the intersections.
The automatic control method for the special traffic tasks adopts the automatic control system for the special traffic tasks, and comprises the following steps:
s1, the client executes the following steps:
s101, a client sends a task application to a server;
s102, receiving a task message approved by a server;
s103, starting to execute a task and pushing GPS information to a server side in real time;
and S104, completing the task.
S2, the server executes the steps as follows:
s201, monitoring a client task application;
s202, receiving a client task application, making a judgment, if the client task application is approved, entering the step S203, and if the client task application is rejected, returning to the step S201;
s203, receiving GPS data of a client, and releasing a corresponding intersection flow direction for a vehicle of the client by combining signal equipment according to a path planning algorithm;
and S204, completing the task.
Further, when the task starts executing, the steps are as follows:
s10, obtaining a path from the task starting point to the task ending point through the current position and the task ending point position of the client vehicle and combining a path planning algorithm;
s11, finding all intersections through which the path passes according to the path data obtained in the step S10;
s12, finding out the intersection closest to the current position of the vehicle at the client;
s13, comparing the tracing points of the section from the current position of the client vehicle to the intersection with the tracing points of all the entrance roads of the intersection, and regarding the most matched entrance road as the entrance road to which the vehicle will drive;
s14, finding the next intersection according to all the passing intersections obtained in the step S11, and obtaining an exit road of the current intersection and an entrance road of the next intersection which are required to pass by the next intersection;
s15, obtaining the flow direction of the current intersection needing to be controlled to be released according to the entrance road obtained in the step S13 and the exit road obtained in the step S14;
and S17, judging whether the vehicle corresponding to the client reaches the task end, if so, ending the whole process, and if not, returning to the step S12.
Further, before performing step S17, the method further includes the steps of: s16, calculating the distance between the client vehicle and the intersection in real time, and if the vehicle is close to the intersection and the distance between the vehicle and the intersection is less than 10 seconds, releasing the flow direction obtained in the step S15; if the vehicle is away from the intersection or has passed through the intersection, control is not continued.
Compared with the prior art, the invention has the following beneficial effects:
1. through intelligent task application and application fast feedback of a client, a server and annunciator equipment, whether the vehicle reaches a corresponding release intersection can be judged;
2. the client side pushes GPS information to the server side in real time, the server side can quickly position the intersection where the client side vehicle arrives, and then the signal machine equipment is matched with the corresponding intersection to let the corresponding intersection pass, so that the client side can quickly arrive at the destination without traffic light obstacles.
Drawings
FIG. 1 is a schematic diagram of an automatic control system for special traffic tasks according to the present invention;
FIG. 2 is a flow chart of the client work flow of the automatic control method for the special traffic task according to the present invention;
FIG. 3 is a server-side workflow diagram of an automatic control method for traffic special tasks according to the present invention;
fig. 4 is a flowchart of the task start execution of the automatic control method for traffic special task according to the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1, an automatic control system for special traffic tasks includes a client, a server and a signal device; the client is used for sending a task application and receiving a message of server task approval; the server is used for receiving the task application sent by the client, making judgment that the application passes or fails and feeding back a judgment result to the client and the annunciator equipment; and the annunciator equipment is used for receiving client information which is sent by the server and passed by the task application and releasing the corresponding intersection for the corresponding client vehicle.
And the client sends the client information and the task end point while sending the task application.
And when the client executes the passed task application, pushing the GPS information to the server in real time until the task is finished.
The configuration steps which need to be completed before the whole control system is implemented comprise:
1) planning an executable area of the whole control system;
2) the longitude and latitude coordinates of all intersection annunciators in the configuration area are configured;
3) configuring longitude and latitude tracing points (about 50 meters) of each entrance road of the intersection;
4) configuring each entrance road of the intersection to correspond to the exit road of the associated intersection, and simultaneously configuring each exit road of the intersection to correspond to the entrance road of the associated intersection; for example: the exit road Ao1 of the A intersection corresponds to the entrance road Bi1 of the B intersection, the exit road Bo1 of the B intersection corresponds to the entrance road Ci1 of the C intersection and the entrance road Di1 of the D intersection
5) And configuring signal lamp numbers corresponding to the entry roads to the exit roads of all the intersections. For example: the number of the signal lamp corresponding to the entry road Ai1 to the exit road Ao1 at the intersection a is 1.
As shown in fig. 2 and 3, a method for automatically controlling a traffic special task by using the above-mentioned system for automatically controlling a traffic special task comprises the steps of:
s1, the client executes the following steps:
s101, a client sends a task application to a server;
s102, receiving a task message approved by a server;
s103, starting to execute a task and pushing GPS information to a server side in real time;
and S104, completing the task.
S2, the server executes the steps as follows:
s201, monitoring a client task application;
s202, receiving a client task application, making a judgment, if the client task application is approved, entering the step S203, and if the client task application is rejected, returning to the step S201;
s203, receiving GPS data of a client, and releasing a corresponding intersection flow direction for a vehicle of the client by combining signal equipment according to a path planning algorithm;
and S204, completing the task.
Example 2
As shown in fig. 2, 3 and 4, a traffic special task automatic control method, which adopts the traffic special task automatic control system, comprises the following steps:
s1, the client executes the following steps:
s101, a client sends a task application to a server;
s102, receiving a task message approved by a server;
s103, starting to execute a task and pushing GPS information to a server side in real time;
and S104, completing the task.
S2, the server executes the steps as follows:
s201, monitoring a client task application;
s202, receiving a client task application, making a judgment, if the client task application is approved, entering the step S203, and if the client task application is rejected, returning to the step S201;
s203, receiving GPS data of a client, and releasing a corresponding intersection flow direction for a vehicle of the client by combining signal equipment according to a path planning algorithm;
and S204, completing the task.
When the task starts to execute, the steps are as follows:
s10, obtaining a path from the task starting point to the task ending point through the current position and the task ending point position of the client vehicle and combining a path planning algorithm;
s11, finding all intersections through which the path passes according to the path data obtained in the step S10;
s12, finding out the intersection closest to the current position of the vehicle at the client;
s13, comparing the tracing points of the section from the current position of the client vehicle to the intersection with the tracing points of all the entrance roads of the intersection, and regarding the most matched entrance road as the entrance road to which the vehicle will drive;
s14, finding the next intersection according to all the passing intersections obtained in the step S11, and obtaining an exit road of the current intersection and an entrance road of the next intersection which are required to pass by the next intersection;
s15, obtaining the flow direction of the current intersection needing to be controlled to be released according to the entrance road obtained in the step S13 and the exit road obtained in the step S14;
s16, calculating the distance between the client vehicle and the intersection in real time, and if the vehicle is close to the intersection and the distance between the vehicle and the intersection is less than 10 seconds, releasing the flow direction obtained in the step S15; if the vehicle is far away from the intersection or passes through the intersection, the control is not continued;
and S17, judging whether the vehicle corresponding to the client reaches the task end, if so, ending the whole process, and if not, returning to the step S12.
Compared with the prior art, the invention has the following beneficial effects:
1. through intelligent task application and application fast feedback of a client, a server and annunciator equipment, whether the vehicle reaches a corresponding release intersection can be judged;
2. the client side pushes GPS information to the server side in real time, the server side can quickly position the intersection where the client side vehicle arrives, and then the signal machine equipment is matched with the corresponding intersection to let the corresponding intersection pass, so that the client side can quickly arrive at the destination without traffic light obstacles.
The patent names provided in the present application are described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the methods of the present application and their core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (7)
1. An automatic control system for special traffic tasks comprises a client, a server and annunciator equipment; the system is characterized by comprising a client, a server and a server, wherein the client is used for sending a task application and receiving a message of server task approval; the server is used for receiving the task application sent by the client, making judgment that the application passes or fails and feeding back a judgment result to the client and the annunciator equipment; and the annunciator equipment is used for receiving client information which is sent by the server and passed by the task application and releasing the corresponding intersection for the corresponding client vehicle.
2. The system of claim 1, wherein the client sends the application for the task and the client information and the task end point.
3. The system according to claim 1 or 2, wherein the client pushes the GPS information to the server in real time when executing the passing task application until the task is finished.
4. The system of claim 3, wherein the configuration steps to be performed before the overall control system is implemented comprise:
1) planning an executable area of the whole control system;
2) the longitude and latitude coordinates of all intersection annunciators in the configuration area are configured;
3) configuring longitude and latitude tracing points of each entrance road of the intersection;
4) configuring each entrance road of the intersection to correspond to the exit road of the associated intersection, and simultaneously configuring each exit road of the intersection to correspond to the entrance road of the associated intersection;
5) and configuring signal lamp numbers corresponding to the entry roads to the exit roads of all the intersections.
5. A traffic special task automatic control method, characterized in that, the traffic special task automatic control system according to any one of claims 1-4 is adopted, comprising the steps of:
s1, the client executes the following steps:
s101, a client sends a task application to a server;
s102, receiving a task message approved by a server;
s103, starting to execute a task and pushing GPS information to a server side in real time;
and S104, completing the task.
S2, the server executes the steps as follows:
s201, monitoring a client task application;
s202, receiving a client task application, making a judgment, if the client task application is approved, entering the step S203, and if the client task application is rejected, returning to the step S201;
s203, receiving GPS data of a client, and releasing a corresponding intersection flow direction for a vehicle of the client by combining signal equipment according to a path planning algorithm;
and S204, completing the task.
6. The method of claim 5, wherein when the task is started, the method comprises the following steps:
s10, obtaining a path from the task starting point to the task ending point through the current position and the task ending point position of the client vehicle and combining a path planning algorithm;
s11, finding all intersections through which the path passes according to the path data obtained in the step S10;
s12, finding out the intersection closest to the current position of the vehicle at the client;
s13, comparing the tracing points of the section from the current position of the client vehicle to the intersection with the tracing points of all the entrance roads of the intersection, and regarding the most matched entrance road as the entrance road to which the vehicle will drive;
s14, finding the next intersection according to all the passing intersections obtained in the step S11, and obtaining an exit road of the current intersection and an entrance road of the next intersection which are required to pass by the next intersection;
s15, obtaining the flow direction of the current intersection needing to be controlled to be released according to the entrance road obtained in the step S13 and the exit road obtained in the step S14;
and S17, judging whether the vehicle corresponding to the client reaches the task end, if so, ending the whole process, and if not, returning to the step S12.
7. The method of claim 6, further comprising the steps of: s16, calculating the distance between the client vehicle and the intersection in real time, and if the vehicle is close to the intersection and the distance between the vehicle and the intersection is less than 10 seconds, releasing the flow direction obtained in the step S15; if the vehicle is away from the intersection or has passed through the intersection, control is not continued.
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| CN202111303703.8A CN114038220A (en) | 2021-11-05 | 2021-11-05 | Automatic control system and method for special traffic tasks |
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| CN202111303703.8A CN114038220A (en) | 2021-11-05 | 2021-11-05 | Automatic control system and method for special traffic tasks |
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- 2021-11-05 CN CN202111303703.8A patent/CN114038220A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007012565A1 (en) * | 2005-07-27 | 2007-02-01 | Siemens Aktiengesellschaft | Road communication system and a method for operating a road communication system |
| KR101753228B1 (en) * | 2016-08-22 | 2017-07-19 | 윤정원 | System for controlling emergency vehicle traffic |
| CN107016863A (en) * | 2017-04-13 | 2017-08-04 | 南京多伦科技股份有限公司 | A kind of real-time automatic special duty's control system and method based on mobile terminal technology |
| CN111223290A (en) * | 2018-11-27 | 2020-06-02 | 青岛海信网络科技股份有限公司 | Method and device for rapidly manufacturing guard scheme |
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