A method and system for separating pedestrians and vehicles between a through lane and a crosswalk

Abstract

The present invention provides a method and system for separating people and vehicles in a through lane and a crosswalk, which comprises the following steps: 1) a server sets a time threshold; 2) a corresponding fence area of ​​each lane is formed on a zebra crossing of a crosswalk; 3) a high-definition camera simultaneously collects video images of each lane fence area and transmits the video images to the server; 4) the server can decode and perform image recognition analysis and processing based on the video images of all lane fence areas to form traffic light control information; 5) the color and duration of the lighting of the corresponding through lane traffic light are switched; 6) violation information is processed; 7) the above steps 3) to 6) are repeated to realize continuous operation; the method adopts the method of controlling only the lane entered by pedestrians and the adjacent lanes, and combining the method of forcibly prohibiting pedestrians from continuously occupying the road for passage, which can effectively alleviate the pressure on the passage of motor vehicles in the through lane and pedestrians in the crosswalk, and improve traffic safety; the method is widely applicable to the supporting use of traffic control at intersections.

Description

Technical Field

[0001] The invention relates to traffic control equipment, and in particular to a method and system for separating vehicles and people from a through lane and a crosswalk. Background Art

[0002] There are a large number of pedestrian crossings on the straight multi-lane in the urban traffic system. There are inherent contradictions and conflicts between the traffic needs of people and vehicles. In order to solve such contradictions, the current method of setting manual traffic lights at pedestrian crossings is adopted, that is, the pedestrian light is red and the vehicle light is green by default. When pedestrians want to cross the road, they manually control the application to switch the vehicle light to red and the pedestrian light to green. The state of the light is maintained for a fixed time and then automatically switches back to the default state. Although this method ensures the traffic order of pedestrians and vehicles, it has the following two defects: ① With the increasing pressure of urban traffic today, this method has increasingly obvious deficiencies in the efficiency of road vehicle traffic, especially in the straight lanes with a large number of lanes, the speed of pedestrians crossing the road is limited. As a result, as long as a small number of pedestrians cross the road, the traffic of vehicles in all lanes in both directions will be completely suspended. Moreover, because the traffic lights are switched at a fixed time, it is inevitable that pedestrians have passed, but vehicles in all lanes in both directions still need to wait for a period of time before resuming traffic. This is especially true when there are many crosswalks on a long straight lane, which can easily cause congestion, seriously reducing the traffic efficiency of vehicles on the road and further increasing traffic pressure. ② The traffic principle of motor vehicles giving way to pedestrians is not fully implemented. The single traffic light does not give drivers enough warnings, which makes it easy for motor vehicles to pass through crosswalks too fast. In addition, due to the lack of identification methods and compulsory punishment methods similar to those for running a red light at an intersection, there are great hidden dangers to traffic safety at crosswalks. Summary of the invention

[0003] In view of the above situation, the purpose of the present invention is to provide a method and system for separating pedestrians and vehicles in a straight lane and a crosswalk. It adopts the method of controlling the passage of motor vehicles only in the lanes entered by pedestrians and the adjacent lanes, combined with a method of forcibly controlling the prohibition of pedestrians from passing when pedestrians continue to occupy the road. It can effectively alleviate the pressure on the passage of motor vehicles in the straight lane and pedestrians in the crosswalk, and improve traffic safety. The overall process method is simple and reliable, has broad market prospects, and is easy to promote and use.

[0004] In order to achieve the above object, a method for separating people and vehicles between a through lane and a crosswalk is provided, which comprises the following steps:

[0005] 1) Setting the flow limiting time threshold, the server sets the time threshold t1 for the pedestrian crossing traffic light to turn on the green light and the time threshold t2 for the through lane traffic light to turn on the green light;

[0006] 2) Draw a video virtual fence. In the field of view of the high-definition camera, draw a video virtual fence based on the stop line of the straight lane, the middle dividing line of the straight lane, the starting dotted lines on both sides of the zebra crossing of the pedestrian crossing, and the middle extended dotted line of each lane in the straight lane as the boundary, so as to form a fence area for each lane corresponding to the zebra crossing of the pedestrian crossing. The server can obtain the video image of each lane fence area through the high-definition camera;

[0007] 3) Video camera: HD cameras can simultaneously capture video images of each lane fence area and transmit them to the server, which will decode and perform image recognition analysis;

[0008] 4) Forming traffic light control information. The server can decode and perform image recognition analysis based on the video images of all lane fence areas to form traffic light control information including the duration of controlling the through lane traffic lights on both sides of the lane to switch to red lights at the same time when a pedestrian enters the fence area of ​​a lane, while the other through lane traffic lights are green lights, and send the above traffic light control information to the traffic light control device for receiving and processing;

[0009] 5) Traffic light switching: the traffic light control device receives the traffic light control information sent by the server and controls the color and duration of the corresponding straight lane traffic light to switch as required;

[0010] 6) Information upload processing: when a traffic light on a through lane is red, if a motor vehicle does not stop within the stop line of the through lane and continues to pass, the high-definition camera collects the image of the illegal vehicle including the license plate number, and uploads it to the traffic system control center through the server. The traffic system control center finds the corresponding driver based on the license plate number and notifies the driver of the motor vehicle violation information; at the same time, the server can upload the video image collected by the high-definition camera to the traffic system control center for storage, which is convenient for information query and display processing;

[0011] 7) Repeat the above steps 3) to 6) to achieve continuous and normal vehicle and pedestrian diversion control operation.

[0012] In order to achieve process and effect optimization, further measures are as follows: step 4) includes pedestrian flow control, that is, when the server decodes the video image and performs image recognition analysis, if it is found that the pedestrian crossing traffic light has been continuously lighting the green light for more than the flow limit time threshold t1 set by the server, the server will send out new traffic light control information, and the traffic light control device will control the pedestrian crossing traffic light to switch to lighting the red light, and all the through lane traffic lights to switch to lighting the green light, and after a certain period of time, resume the operation from the above step 3).

[0013] The step 4) includes limiting the flow of motor vehicles, that is, when the server decodes the video image and performs image recognition and analysis, if it is found that the time when the traffic lights in all the straight lanes are on green exceeds the flow limiting time threshold t2 set by the server, the server sends new traffic light control information, and the traffic light control device controls the pedestrian crossing traffic lights to switch to green lights, and all the traffic lights in the straight lanes to switch to red lights. After a certain period of time, the operation is resumed from the above step 3).

[0014] The present invention also provides a pedestrian and vehicle diversion system for a straight lane and a crosswalk, which includes a straight lane traffic light, a crosswalk traffic light, a traffic light control device, a power distribution device, a high-definition camera and a server; the crosswalk traffic light and the straight lane traffic light are respectively connected to the output end of the traffic light control device, the input end of the traffic light control device and the high-definition camera are respectively connected to the server, the power distribution device is respectively connected to the crosswalk traffic light, the straight lane traffic light, the traffic light control device and the high-definition camera for providing power, and the server is also connected to the traffic system control center.

[0015] The pedestrian crossing traffic lights, the through lane traffic lights, the traffic light control device, the high-definition camera and the power distribution device are respectively installed at each pedestrian crossing intersection of the through lane.

[0016] The server can be connected in parallel to a plurality of traffic light control devices and high-definition cameras at the intersections of through lanes and pedestrian crossings.

[0017] Each crosswalk intersection of the through lane includes a crosswalk traffic light and a high-definition camera respectively arranged on both sides of the zebra crossing of the crosswalk at the intersection, and a through lane traffic light is arranged corresponding to each lane in front of the stop line of the through lane of the intersection.

[0018] The server is connected to the traffic system control center by a wired network or a wireless network.

[0019] The beneficial effects of the present invention compared with the prior art are as follows:

[0020] (I) The present invention uses a pedestrian crossing traffic light and a through lane traffic light to be connected to the output end of the traffic light control device, so that the traffic light control device can automatically switch the color and duration of the traffic light, thereby realizing intelligent management and ensuring the traffic safety of motor vehicles and pedestrians at the intersection;

[0021] (II) The present invention uses the input end of the traffic light control device and the high-definition camera to be connected to the server respectively, and the server decodes and recognizes the video image captured by the high-definition camera, and switches the signal of the traffic light at the intersection through the connected traffic light control device, so as to facilitate the coordinated diversion of pedestrians and motor vehicles, thereby effectively alleviating the traffic pressure of pedestrians and motor vehicles at the intersection and achieving the purpose of improving traffic efficiency;

[0022] (III) The present invention adopts a structure in which each through lane is provided with a traffic light, and combined with pedestrian crossing traffic lights and high-definition cameras on both sides of the zebra crossing at the intersection, it can effectively alleviate the pressure on motor vehicles in the through lanes and pedestrians at the crosswalks, and can improve traffic safety. The overall structure is scientific and reasonable, simple and compact, easy to install and use, and has significant economic and social benefits.

[0023] (IV) The present invention controls the passage of motor vehicles only in lanes where pedestrians have entered and their adjacent lanes, and combines this with a method of forcibly controlling the prohibition of pedestrian passage when pedestrians continue to occupy the road. This can effectively alleviate the pressure on motor vehicles in through lanes and pedestrians in crosswalks, and improve traffic safety. The overall process method is simple and reliable.

[0024] The invention is widely applicable to supporting use in intersection traffic control.

[0025] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 It is the overall structural block diagram of the present invention.

[0028] Figure 2 It is a schematic diagram of the on-site installation of the high-definition camera and traffic lights in the present invention.

[0029] In the figure: 1- pedestrian crossing traffic light, 2- power distribution device, 3- high-definition camera, 4- straight lane traffic light, 5- traffic light control device, 6- server, 7- traffic system control center, 8- pedestrian crossing zebra crossing, 9- straight lane stop line, 10- straight lane, 11- middle dividing line of the straight lane. DETAILED DESCRIPTION

[0030] Combination Figure 1 and Figure 2 As shown, the present invention provides a method for separating vehicles and people in a straight lane and a crosswalk, which comprises the following steps:

[0031] 1) Setting a flow limiting time threshold (i.e., a time critical value), the server 6 sets a time threshold t1 for the pedestrian crossing traffic light 1 to turn on the green light and a time threshold t2 for the through lane traffic light 4 to turn on the green light;

[0032] 2) Draw a video virtual fence. In the field of view of the high-definition camera 3, a video virtual fence is drawn based on the stop line 9 of the straight lane, the middle dividing line 11 of the straight lane, the starting dotted lines on both sides of the pedestrian crossing zebra crossing 8, and the middle extended dotted line of each lane in the straight lane as the boundary, so as to form a fence area of ​​each lane corresponding to the pedestrian crossing zebra crossing 8. The server can obtain the video image of each lane fence area through the high-definition camera 3; by setting the fence area of ​​each lane, it is convenient for the server 6 to effectively identify, analyze and process the video image sent by the high-definition camera 3;

[0033] 3) Video recording: the high-definition camera 3 simultaneously collects video images of each lane fence area and transmits them to the server 6, which decodes and performs image recognition analysis and processing;

[0034] 4) Forming traffic light control information, the server 6 can decode and perform image recognition analysis based on the video images of all lane fence areas, and then form traffic light control information including when a pedestrian enters a certain lane fence area, controlling the through lane traffic lights 4 on both sides of the lane to switch to red lights at the same time, while other through lane traffic lights 4 are green lights, and sending the above traffic light control information to the traffic light control device 5 for receiving and processing; including pedestrian flow control, that is, when the server 6 decodes and performs image recognition analysis on the video image, if it is found that the crosswalk traffic light 1 continuously lights up the green light for a time that exceeds the flow limit time threshold t1 set by the server 6, then the server 6 issues a new traffic light control information. Information, the traffic light control device 5 controls the pedestrian crossing traffic light 1 to switch to red light, and all the through lane traffic lights 4 to switch to green light, and keep it for a certain time, then resume from the above step 3) to continue the operation; it includes motor vehicle flow control, that is, when the server 6 decodes the video image and performs image recognition analysis and processing, if it is found that the time when all the through lane traffic lights 4 are lit green exceeds the flow limit time threshold t2 set by the server 6, then the server 6 sends new traffic light control information, and the traffic light control device 5 controls the pedestrian crossing traffic light 1 to switch to green light, and all the through lane traffic lights 4 to switch to red light, and keep it for a certain time, then resume from the above step 3) to continue the operation;

[0035] 5) Traffic light switching, the traffic light control device 5 receives the traffic light control information sent by the server 6, and controls the color and duration of the corresponding straight lane traffic light 4 to switch as required;

[0036] 6) Information upload processing: when a traffic light 4 of a through lane is on red, if a motor vehicle does not stop within the stop line 9 of the through lane and continues to pass, the high-definition camera 3 collects the image of the illegal vehicle including the license plate number, and uploads it to the traffic system control center 7 via the server 6. The traffic system control center 7 finds the corresponding driver based on the license plate number and notifies the driver of the motor vehicle violation information; at the same time, the server 6 can upload the video image collected by the high-definition camera 3 to the traffic system control center 7 for storage, which is convenient for information query and display processing.

[0037] 7) Repeat the above steps 3) to 6) to achieve continuous and normal vehicle and pedestrian diversion control operation.

[0038] Reference Figure 1 and Figure 2 The present invention also provides a pedestrian and vehicle diversion system for a straight lane and a crosswalk, which includes a straight lane traffic light 4, a crosswalk traffic light 1, a traffic light control device 5, a power distribution device 2, a high-definition camera 3 and a server 6; the crosswalk traffic light 1 and the straight lane traffic light 4 are respectively connected to the output end of the traffic light control device 5, the input end of the traffic light control device 5 and the high-definition camera 3 are respectively connected to the server 6, the power distribution device 2 is respectively connected to the crosswalk traffic light 1, the straight lane traffic light 4, the traffic light control device 5 and the high-definition camera 3 for providing power, and the server 6 is also connected to the traffic system control center 7.

[0039] refer to Figure 1 and Figure 2 As shown, in the present invention, the pedestrian crossing traffic light 1, the through lane traffic light 4, the traffic light control device 5, the high-definition camera 3 and the power distribution device 2 are respectively installed at each pedestrian crossing intersection of the through lane 10; each pedestrian crossing intersection of the through lane 10 includes a pedestrian crossing traffic light 1 and a high-definition camera 3 respectively arranged on both sides of the pedestrian crossing zebra crossing 8 at the intersection, and a through lane traffic light 4 is arranged corresponding to each lane in front of the through lane stop line 9 of the intersection; the traffic light control device 5 and the power distribution device 2 are generally arranged in a control box near each pedestrian crossing intersection of the through lane 10, and the server 6 and the traffic system control center 7 are generally arranged in a remote office building; the server 6 can be connected in parallel to multiple traffic light control devices 5 and high-definition cameras 3 at the through lane pedestrian crossing intersections, and the server 6 and the traffic system control center 7 are connected by a wired network or a wireless network to facilitate remote control.

[0040] like Figure 1 and Figure 2As shown, the power distribution device 2 in the present invention includes a voltage conversion circuit, which is convenient for outputting different working voltages for the pedestrian crossing traffic light 1, the straight lane traffic light 4, the traffic light control device 5 and the high-definition camera 3 to match, thereby greatly improving the reliability of the system; the straight lane traffic light 4 and the pedestrian crossing traffic light 1 both include red, green and yellow three-color signal lights; the traffic light control device 5 is similar to the signal machine used at the existing intersection, including an information processing module and an execution module, which is used to indicate the passage of pedestrians and motor vehicles, and can control the pedestrian crossing traffic light 1 and the straight lane traffic light 4. The lighting color and duration are automatically controlled, and the color and duration of the pedestrian crossing traffic light 1 and the straight lane traffic light 4 can be switched by receiving the control signal sent by the server 6. The information processing module is used to receive the control signal of the server 6 to form a control sequence and process, and the execution module accepts the control of the information processing module to switch the color and duration of the pedestrian crossing traffic light 1 and the straight lane traffic light 4; the high-definition camera 3 is used to collect video images of pedestrians and motor vehicles entering the pedestrian crossing zebra crossing 8, and send the video images to the server 6 for processing; The server 6 includes a video data receiving module, an image recognition processing module, a virtual fence setting module, a traffic control signal generating module, and an information uploading module, which are used to receive the video image transmitted by the high-definition camera 3 and perform decoding and image recognition analysis processing. A control signal can be issued based on the recognition and analysis processing of the video image to switch the signal states of the pedestrian crossing traffic light 1 and the through lane traffic light 4. The virtual fence setting module sets a virtual fence in the pedestrian crossing zebra crossing 8 area according to the range of the through lane 10. The video data receiving module receives the real-time image data transmitted by the high-definition camera 3. The image recognition processing module decodes and analyzes the real-time image data and detects whether there is a person entering the virtual fence area. The traffic control signal generating module generates a control signal according to the analysis result of the image recognition processing module and sends it to the traffic light control device 5. The information uploading module can upload the video image collected by the high-definition camera including the information of the motor vehicle violating the through lane traffic light 4 signal to the traffic system control center; the traffic system control center is similar to the existing traffic police department information platform, which can store the information uploaded by the server 6, facilitate the query and display processing of the information, and notify the motor vehicle driver of the violation penalty information.

[0041] The present invention discloses a method and system for separating pedestrians and vehicles from a straight lane and a crosswalk, including the following aspects: 1. Controlling the passage of motor vehicles only in lanes where pedestrians have entered and their adjacent lanes; 2. Forcibly prohibiting the passage of pedestrians when pedestrians continue to occupy the road; 3. Uploading information on vehicles violating the prohibition to a traffic system control center to impose penalties on them; on the basis of resolving the conflict between the passage of motor vehicles and pedestrians, the problem of reduced passage efficiency of motor vehicles caused by pedestrians passing through crosswalks on the straight lane and the problem of unclear behavior of motor vehicles giving way to pedestrians can be solved, thereby effectively alleviating traffic pressure and improving traffic safety.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention and according to the technical solution and concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A method for separating pedestrians and vehicles between a through lane and a crosswalk, characterized in that The following steps are involved: 1) Setting a flow limiting time threshold, the server (6) sets a time threshold t1 for the pedestrian crossing traffic light (1) to turn on the green light and a time threshold t2 for the through lane traffic light (4) to turn on the green light; 2) Draw a video virtual fence. In the field of view of the high-definition camera (3), draw a video virtual fence based on the stop line (9) of the straight lane, the middle dividing line (11) of the straight lane, the starting dashed lines on both sides of the zebra crossing (8), and the middle extended dashed line of each lane in the straight lane as the boundary, so as to form a fence area for each lane corresponding to the zebra crossing (8). The server can obtain a video image of each lane fence area through the high-definition camera (3); 3) Video recording: the high-definition camera (3) simultaneously collects video images of each lane fence area and transmits them to the server (6), which decodes and performs image recognition analysis and processing; 4) generating traffic light control information. The server (6) can decode and perform image recognition analysis based on the video images of all lane fence areas to generate traffic light control information including the duration of controlling the straight lane traffic lights (4) on both sides of the lane to switch to red lights when a pedestrian enters the lane fence area, while the other straight lane traffic lights (4) are green lights, and the traffic light control information is sent to the traffic light control device (5) for receiving and processing; 5) Traffic light switching, the traffic light control device (5) receives the traffic light control information sent by the server (6), and controls the color and duration of the lighting of the corresponding through lane traffic light (4) to switch as required; 6) Information upload processing: when a traffic light (4) on a through lane is in the red state, if a motor vehicle does not stop within the stop line (9) of the through lane and continues to pass, the high-definition camera (3) collects an image of the illegal vehicle including the license plate number, and uploads it to the traffic system control center (7) via the server (6). The traffic system control center (7) finds the corresponding driver based on the license plate number and notifies the driver of the motor vehicle violation information; at the same time, the server (6) can upload the video image collected by the high-definition camera (3) to the traffic system control center (7) for storage, so as to facilitate information query and display processing; 7) Repeat the above steps 3) to 6) to achieve continuous and normal vehicle and pedestrian diversion control operation.

2. The method for separating vehicles and pedestrians at a straight lane and a crosswalk according to claim 1 is characterized in that The step 4) includes pedestrian flow control, that is, when the server (6) decodes and performs image recognition analysis on the video image, if it is found that the pedestrian crossing traffic light (1) continuously lights up the green light for a time period exceeding the flow control time threshold t1 set by the server (6), the server (6) sends out new traffic light control information, and the traffic light control device (5) controls the pedestrian crossing traffic light (1) to switch to the red light, and all the through lane traffic lights (4) to switch to the green light, and after a certain period of time, resume the operation from the above step 3).

3. The method for separating vehicles and pedestrians at a straight lane and a crosswalk according to claim 1 is characterized in that The step 4) includes limiting the flow of motor vehicles, that is, when the server (6) decodes the video image and performs image recognition analysis, if it is found that the time for which the traffic lights (4) of all the straight lanes are lit green exceeds the flow limiting time threshold t2 set by the server (6), the server (6) sends new traffic light control information, and the traffic light control device (5) controls the pedestrian crossing traffic lights (1) to switch to green lights, and all the traffic lights (4) of the straight lanes to switch to red lights, and after a certain period of time, resumes the operation from the above step 3).

4. A pedestrian and vehicle separation system for a straight lane and a crosswalk that implements the method for separating pedestrians and vehicles from a straight lane and a crosswalk as described in claim 1, characterized in that The invention comprises a straight lane traffic light (4), a crosswalk traffic light (1), a traffic light control device (5), a power distribution device (2), a high-definition camera (3) and a server (6); the crosswalk traffic light (1) and the straight lane traffic light (4) are respectively connected to the output end of the traffic light control device (5), the input end of the traffic light control device (5) and the high-definition camera (3) are respectively connected to the server (6), the power distribution device (2) is respectively connected to the crosswalk traffic light (1), the straight lane traffic light (4), the traffic light control device (5) and the high-definition camera (3) for providing power, and the server (6) is also connected to a traffic system control center (7).

5. The pedestrian and vehicle separation system for the straight lane and the crosswalk according to claim 4 is characterized in that The pedestrian crossing traffic light (1), the through lane traffic light (4), the traffic light control device (5), the high-definition camera (3) and the power distribution device (2) are respectively installed at each pedestrian crossing intersection of the through lane (10).

6. The pedestrian and vehicle separation system for the through lane and the crosswalk according to claim 5 is characterized in that The server (6) can be connected in parallel to a plurality of traffic light control devices (5) and high-definition cameras (3) at the intersections of through lanes and pedestrian crossings.

7. The pedestrian and vehicle separation system for the straight lane and the crosswalk according to claim 5 is characterized in that Each crosswalk intersection of the through lane (10) includes a crosswalk traffic light (1) and a high-definition camera (3) respectively arranged on both sides of the crosswalk zebra crossing (8) at the intersection, and a through lane traffic light (4) corresponding to each lane is arranged in front of the stop line (9) of the through lane of the intersection.

8. The pedestrian and vehicle separation system for the straight lane and the crosswalk according to claim 4 is characterized in that The server (6) and the traffic system control center (7) are connected via a wired network or a wireless network.

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