TWI709946B - Traffic signal management and control system and traffic signal management and control method - Google Patents

Abstract

A traffic signal management and control system and a traffic signal management and control method. The steps of the traffic signal management and control method are to enable the traffic signal management and control system to capture the crosswalk image, and then analyze the crosswalk image to obtain the pedestrian speed , And according to the traffic speed analysis to determine that the pedestrian image cannot pass the crosswalk within the countdown time of the pedestrian signal system, control the vehicle signal system to delay switching to start a vehicle traffic signal. When the signal control device analyzes and judges that pedestrians cannot pass the crosswalk within the countdown time, the vehicle signal system is controlled to delay the switch to activate the design of the vehicle traffic signal to ensure that pedestrians can safely pass the crosswalk. Therefore, the safety of pedestrians passing through the pedestrian crossing can be greatly improved.

Description

Traffic signal management and control system and traffic signal management and control method

The invention relates to an equipment management and control system and a management and control method, in particular to a management and control system and a management and control method for traffic signs.

In order to ensure smooth traffic and effectively control the right of way of vehicles and pedestrians to improve traffic safety at intersections, a vehicle signal system to control vehicles passing through the intersection is usually installed at the intersection, as well as a system to control pedestrians crossing the intersection. Pedestrian signal system.

Generally speaking, the traffic sign management unit usually sets the pass time of the pedestrian pass sign of the pedestrian sign system according to the size of the intersection, such as 45 seconds, 35 seconds, etc., and switches immediately after the pass time counts. In order to prohibit pedestrians from passing through, the vehicle signal system will also switch to the vehicle traffic signal, so that vehicles on the corresponding side can pass through the intersection. But there are still shortcomings in the design and use of such a sign system. When the countdown to the pedestrian traffic signal of the pedestrian traffic signal system ends, the vehicle traffic signal system usually switches to the vehicle traffic signal immediately or after an interval of 2~5 seconds. Once there are pedestrians walking on the pedestrian crossing, such as action The slow elderly, pregnant women, and people with reduced mobility will immediately put pedestrians in danger of being hit by a vehicle. Therefore, the current traffic signal management and control system still has room for improvement.

Therefore, the purpose of the present invention is to provide a traffic signal management and control system that can improve at least one of the disadvantages of the prior art.

Therefore, the traffic signal management and control system of the present invention is suitable for controlling a pedestrian signal system and a vehicle signal system installed in a crosswalk. The traffic signal management and control system includes an image capturing device capable of capturing images of the crosswalk to obtain a crosswalk image, and a signal control device connected to the image capturing device. The signal control device is used for signal connection between the vehicle signal system and the pedestrian signal system, and includes an image analysis unit, a timing reading unit, a traffic status analysis unit, and a signal control unit. The analysis unit will analyze and identify the crosswalk and each pedestrian located on the crosswalk from the crosswalk image. The timing reading unit can read a pass of a pedestrian pass sign of the pedestrian sign system In the countdown time, the traffic state analysis unit will analyze the traffic speed of each pedestrian in the crosswalk image relative to the crosswalk, and will determine that the traffic speed of a pedestrian cannot pass within the countdown time When the pedestrian is crossing, a delayed switching signal is generated correspondingly, and the signal control unit is triggered by the delayed switching signal, and the vehicle signal system is controlled to delay switching to start a vehicle traffic signal.

Therefore, the purpose of the present invention is to provide a traffic signal management and control method that can improve at least one of the disadvantages of the prior art.

Therefore, the traffic signal management and control method of the present invention includes the following steps: (A) Make a traffic signal control system move toward a pedestrian crossing corresponding to a pedestrian signal system to perform image capture to obtain a pedestrian crosswalk image; (B) Make the traffic signal control system analyze the image of the crosswalk to obtain the speed of a pedestrian; and (C) make the traffic signal control system determine that the pedestrian image cannot be included in one of the pedestrian signal systems based on the analysis of the speed When passing the pedestrian crossing within the countdown time, control a vehicle signal system located in the pedestrian crossing to delay switching and start a vehicle traffic signal.

The effect of the present invention is that when the signal control device analyzes and judges that pedestrians cannot pass the crosswalk within the countdown time, the vehicle signal system is controlled to delay the switch to activate the design of the vehicle traffic signal. Ensure that pedestrians can safely pass through the pedestrian crossing, so the safety of pedestrians when passing through the pedestrian crossing can be greatly improved.

Referring to Figures 1 and 2, the embodiment of the traffic signal management and control system of the present invention is suitable for signal connection between a vehicle signal system 801 and a pedestrian signal system 802 that is set up on a crosswalk 701, and can be used to control the vehicle The signs of the sign system 801 and the pedestrian sign system 802 are switched to control the right of way of the vehicle 704 and the pedestrian 703 at the crosswalk 701 respectively. The so-called crosswalk 701 is a zebra crossing area that crosses a road, and in this embodiment, the road is a two-way road with a central island 702. In addition, during implementation, the road may be a type of road that allows vehicles 704 to drive straight across the crosswalk 701, or refer to a road that connects to an intersection or T-junction and allows vehicles 704 to turn and pass through the crosswalk 701. Types of. The vehicle sign system 801 can switch between a vehicle pass sign and a no-pass sign, and the pedestrian sign system 802 can switch between a pedestrian pass sign and a no-pass sign.

The traffic signal management and control system includes an image capturing device 3 for capturing images of the crosswalk 701 to obtain a crosswalk image, and a signal connected to the image capturing device 3 and used for signal connection to the image capturing device 3 The vehicle signal system 801 and the signal control device 4 of the pedestrian signal system 802. The image capturing device 3 can be installed in the vehicle signal system 801 or the pedestrian signal system 802, or can be installed near the pedestrian crossing 701 through a bracket (not shown), and can be used for the pedestrian crossing 701 performs image capture.

The sign control device 4 includes an image capture control unit 41, an image analysis unit 42, a timing reading unit 43, a traffic state analysis unit 44, and a sign control unit 45.

The image capture control unit 41 is triggered when the pedestrian signal system 802 switches to activate the pedestrian traffic signal, and controls the image capture device 3 to start image capture to obtain the crosswalk image, and will The vehicle signal system 801 is triggered when a vehicle traffic signal is switched on, and the image capturing device 3 is controlled to stop image capturing. However, when implemented, in another embodiment of the present invention, the image capture device 3 can be designed to continuously perform image capture, and the image capture control unit 41 will switch to activate the pedestrian sign system 802 The pedestrian crossing signal period is triggered, and the image of the corresponding period is captured from the image data captured by the image capturing device 3 to obtain the crosswalk image.

The image analysis unit 42 receives and analyzes the crosswalk image, and analyzes and recognizes the crosswalk 701, each pedestrian 703 walking on the crosswalk 701, and the central island 702 from the crosswalk image. Wait for the image area.

The timing reading unit 43 can read a countdown time for the pedestrian signal system 802 to time the pedestrian traffic signal.

The traffic analysis unit 44 has a built-in crosswalk length data about the crosswalk 701. The length data of the crosswalk includes but is not limited to the length and width of the crosswalk 701, the number of zebra stripes, each The width of the zebra stripes, the distance between two adjacent zebra stripes, and the number and distance of the zebra stripes from the two ends of the pedestrian crossing 701 to the central island 702, etc.

The traffic state analysis unit 44 includes a traffic speed analysis module 441, a remaining distance analysis module 442, and a delay judgment module 443.

The traffic speed analysis module 441 analyzes the displacement of each pedestrian 703 in the pedestrian crossing image relative to the pedestrian crossing 701 according to the length data of the pedestrian crossing to obtain the traffic speed of the pedestrian 703. When analyzing the traffic speed, it can be based on the displacement of the pedestrian 703 with respect to the zebra stripes of the crosswalk 701, and then based on the width and spacing of the zebra stripes in the crosswalk length data and the length of the entire crosswalk 701, etc. The speed and direction of the pedestrian 703 are calculated. However, during the implementation, there are many ways to analyze the crosswalk image based on the above-mentioned crosswalk length data to obtain the passing speed and direction of the pedestrian 703, so the implementation is not limited to the above method.

The remaining distance analysis module 442 analyzes the position of each pedestrian 703 in the crosswalk image on the crosswalk 701 and the position relative to the central island 702 according to the length data of the crosswalk to obtain The pedestrian 703 crosses the pedestrian crossing 701 from the current position and the remaining distance to travel, and when it is determined that the pedestrian 703 has not passed the central island 702, further analysis shows that the pedestrian 703 arrived at the central island from the current location 702 still needs to walk a halfway distance, and according to the passing speed of the pedestrian 703, calculate the moving distance the pedestrian 703 can walk in the current countdown time of the passing time.

The delay judging module 443 analyzes the required transit time of the remaining distance corresponding to the movement of the pedestrian 703 according to the transit speed of each pedestrian 703, and analyzes the halfway movement of the pedestrian 703 according to the transit speed A half-way time between the distance. The delay judgment module 443 will further analyze the current countdown time relative to the required transit time and the halfway time. It will be less than the required transit time, or the transit countdown time is less than At the halfway time, that is, when the moving distance is less than the remaining distance or less than the halfway distance, it is determined that the pedestrian 703 cannot pass the pedestrian crossing 701 within the countdown time, and the required travel time and the A transit delay time difference between the transit countdown time, and a halfway delay time difference between the transit time and the transit countdown time is calculated.

Similarly, the delay judgment module 443 will be when the countdown time is greater than the halfway time, but the countdown time is less than the required transit time, and the transit delay time difference is greater than a preset time threshold, that is, the When the moving distance is greater than the midway distance but less than the remaining distance, it is still judged that the pedestrian 703 cannot pass the pedestrian crossing 701 within the countdown time, and an advance between the halfway time and the countdown time is calculated Time difference.

In addition, when the delay determination module 443 determines that the pedestrian 703 cannot pass the crosswalk 701 within the countdown time, it will generate different control signals according to the position of the pedestrian 703 in the crosswalk 701.

Location (1): The pedestrian 703 has passed the central separation island 702. The delay judgment module 443 will correspondingly generate a delay switching signal with the transit delay time difference; position (2): when the pedestrian 703 has not passed the central island 702 and the transit time is greater than the transit countdown time, the delay The judging module 443 will correspondingly generate a delayed switching signal with the midway delay time difference; position (3): the pedestrian 703 has not passed the central separation island 702, and the midway time is less than the pass countdown time, and the required pass When the time is greater than the countdown time of the passage, and the time difference of the passage delay is greater than a preset time threshold, the delay judgment module 443 will correspondingly generate an early switching signal with the advance time difference.

The signal control unit 45 is triggered by the switching signals of the delay determination module 443 and correspondingly controls the operation of the vehicle signal system 801 and the pedestrian signal system 802. When the delay judgment module 443 judges that a pedestrian 703 is in the position (1) state, and correspondingly generates the delay switching signal, the signal control unit 45 is triggered by the delay switching signal to control the vehicle signal system The 801 delay corresponds to the transit delay time difference to switch and activate the vehicle pass signal, that is, to delay the transit delay time difference to release the vehicle 704, so that pedestrians 703 on the crosswalk 701 can use the additional provision of the transit delay time difference to safely pass road. In this state, the pedestrian signal system 802 will also switch to activate the no-pass signal immediately after the countdown time expires to prohibit other pedestrians 703 from entering the crosswalk 701 again.

When the delay determination module 443 determines that a pedestrian 703 is in the position (2) state, and the delay switching signal is generated correspondingly, the signal control unit 45 will be triggered by the delay switching signal to control the vehicle signal system The 801 delay corresponds to the midway delay time difference before switching to start the vehicle pass signal, that is, the midway delay time difference is delayed before the vehicle 704 is released, so that the pedestrian 703 on the crosswalk 701 can use the additional midway delay time difference to arrive safely The central separated island 702, and pauses on the central separated island 702 to wait for the next signal switching. At the same time, the pedestrian signal system 802 will also switch to activate the no-pass signal after the countdown time expires to prohibit other pedestrians 703 from entering the crosswalk 701 again.

When the delay judging module 443 judges that a pedestrian 703 is in the position (3) state, and correspondingly generates the pre-switching signal, the sign control unit 45 will be triggered by the pre-switching signal to control the pedestrian sign system 802 switches to display the halfway time corresponding to the advance time difference from the original display timing of the countdown time, so that the pedestrian signal system 802 will immediately switch to activate the no-passing signal after the halfway time timing ends. That is to say, it will drive the pedestrian signal system 802 to switch in advance by the advance time difference to activate the no-pass signal, and then when the pedestrian 703 moves to the area of the central island 702, it will pass the pedestrian signal system 802 The no-passing sign prohibits the pedestrian 703 from moving forward, forcing the pedestrian 703 to temporarily stay on the central island 702 to wait for the next sign switch. At the same time, the vehicle signal system 801 will still switch to activate the vehicle traffic signal after the countdown time originally timed by the pedestrian signal system 802 expires, and the vehicle 704 is allowed to pass through the crosswalk 701.

With reference to Fig. 3, the traffic signal management and control method of the traffic signal management and control system of the present invention includes the following steps:

Step 91: Capture the crosswalk image. When the pedestrian signal system 802 switches and activates the pedestrian traffic signal, the traffic signal management and control system performs image capture on the pedestrian crossing 701 to obtain the pedestrian crossing image.

Step 92: Analyze and obtain the speed of pedestrian 703. The traffic signal management and control system analyzes the crosswalk image according to the length data of the crosswalk to obtain the speed of each pedestrian 703 walking on the crosswalk 701.

Step 93: Signal switching control. Contains the following sub-steps:

Sub-step 931: Analyze the remaining distance. The traffic signal management and control system analyzes the position of each pedestrian 703 in the pedestrian crossing 701 according to the length data of the pedestrian crossing, so as to obtain the remaining distance that each pedestrian 703 has to travel through the pedestrian crossing 701.

Sub-step 932: Analyze the halfway distance. Make the traffic signal control system analyze the position of each pedestrian 703 on the pedestrian crossing 701 according to the length data of the pedestrian crossing, and when it is judged that a pedestrian 703 has not walked through a central island 702 area of the corresponding road, The analysis obtains a halfway distance that the pedestrian 703 has to travel to reach the central island 702 area.

Sub-step 933: Analyze the required transit time and halfway time. Make the traffic signal control system analyze the required travel time required for the remaining distance of the pedestrian 703 to move according to the travel speed of each pedestrian 703, and if the required travel time is greater than the pedestrian signal system When 802 performs a countdown time for the pedestrian's pass sign, it is judged that the pedestrian 703 cannot pass the crosswalk 701 within the countdown time, and the required pass time and the pass time of the pass countdown time are calculated Delay jet lag.

In addition, the traffic signal control system is also made to analyze the travel distance of the pedestrian 703 within the countdown time of the traffic is less than or equal to the halfway distance based on the travel speed of each pedestrian 703 who has not yet passed through the area of the central separation island 702, A halfway time required for the pedestrian 703 to reach the central island 702 area is analyzed and calculated, and a halfway delay time difference between the countdown time and the halfway time is calculated. Furthermore, the traffic signal management and control system analyzes that the travel distance of the pedestrian 703 during the countdown time is greater than the midway distance but less than the remaining distance, and the transit delay time difference is greater than a predetermined time threshold. Obtain a halfway time required for the pedestrian 703 to reach the area of the centrally separated island 702, and calculate the advance time difference between the inverse of the passage and the halfway time.

Sub-step 934: control the vehicle signal system 801 and the pedestrian signal system 802 to delay or early switch the signal. Make the traffic signal control system analyze the passing speed of each pedestrian 703 who cannot pass the crosswalk 701 within the countdown time, the required passing time and the halfway time, and the corresponding passing delay time difference, The midway delay time difference and/or the advance time difference. Then, the maximum value is selected from the transit delay time difference and the halfway delay time difference, and the maximum value is selected from the advance time difference values, and according to the selected transit delay time difference or the halfway delay time difference, Control the vehicle signal system to delay the corresponding time before switching to the vehicle pass signal, and according to the selected advance time difference, control the pedestrian signal system to switch and start the no-pass signal in advance corresponding to the time to ensure pedestrians It is safe to pass the pedestrian crossing, and to stay in the central island area to wait for the next sign switch.

In summary, the crosswalk image is captured by the image capturing device 3, and the sign control device 4 analyzes the crosswalk image to determine whether the pedestrian 703 can be in the pedestrian sign system 802 The design of the pedestrian crossing 701 in the countdown time can be analyzed and judged when a pedestrian 703 cannot pass the pedestrian crossing within the countdown time. According to the position of the pedestrian 703 on the pedestrian crossing 701 and The speed of passage, corresponding to the control of the vehicle signal system 801 to delay the corresponding time before switching to start the vehicle pass signal, or the control of the pedestrian signal system 802 to switch to start the no-pass signal early to ensure that the pedestrian 703 can pass the pedestrian safely Crosswalk 701, or you can safely reach the central island 702 area of the road to wait for the next sign change, so it can greatly improve the safety of pedestrians 703 when passing the crosswalk 701. It is a very innovative and practical traffic number. Design of management and control system and management method. Therefore, the objective of the present invention can indeed be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent for the present invention.

3: Image capture device 4: Signal control device 41: Image capture control unit 42: Image analysis unit 43: Timing reading unit 44: Traffic status analysis unit 441: Traffic Speed Analysis Module 442: remaining distance analysis module 443: Delay judgment module 45: Signal control unit 700: Road 701: Pedestrian Crossing 702: Central Separated Island 703: Pedestrian 704: Vehicle 801: Vehicle Signal System 802: Pedestrian Signal System 91~93: Step 931~934: substeps

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a three-dimensional schematic diagram of an embodiment of the traffic signal management and control system of the present invention, which is used for setting up a pedestrian crossing and for controlling a vehicle signal system and a pedestrian signal system; Figure 2 is a functional block diagram of this embodiment; and Figure 3 is a flow chart of the steps of a traffic signal management and control method in this embodiment.

3: Image capture device

4: Signal control device

41: Image capture control unit

42: Image analysis unit

43: Timing reading unit

44: Traffic status analysis unit

441: Traffic Speed Analysis Module

442: remaining distance analysis module

443: Delay judgment module

45: Signal control unit

801: Vehicle Signal System

802: Pedestrian Signal System

Claims (8)

A traffic signal management and control system, which is suitable for controlling a pedestrian signal system and a vehicle signal system installed on a crosswalk. The crosswalk crosses a central island. The traffic signal control system includes: an image A capture device that can capture images of the pedestrian crossing to obtain a crosswalk image; and a signal control device, the signal is connected to the image capture device, and the signal is connected to the vehicle signal system and the The pedestrian signal system includes an image analysis unit, a timing reading unit, a traffic state analysis unit, and a signal control unit. The image analysis unit will analyze and identify the pedestrian crossing and the pedestrian crossing from the crosswalk image. For each pedestrian located on the crosswalk, the timing reading unit can read a countdown time of a pedestrian pass sign of the pedestrian sign system. The traffic status analysis unit has a built-in counter corresponding to the crosswalk. Pedestrian crossing length data, including a passing speed analysis module, a remaining distance analysis module, and a delay judgment module, the passing speed analysis module will analyze the image of the pedestrian crossing based on the length data of the pedestrian crossing The movement of one of the pedestrians relative to the crosswalk to obtain the passing speed, the remaining distance analysis module will analyze the pedestrian and the pedestrian crossing when it determines that the pedestrian has not moved through the central island according to the image analysis of the crosswalk. A midway distance between the central islands, the delay judgment module will determine that the pedestrian's moving distance within the countdown time is less than or equal to the midway distance based on the pedestrian's passing speed, and analyze that the pedestrian arrives at the center A half-way time required to separate the island, and calculate the transit time A halfway delay time difference between the counting time and the halfway time, and a delay switching signal is generated in response to the halfway delay time difference. The signal control unit will be triggered by the delay switching signal and control the vehicle signal system to delay the halfway delay The time difference only switches and activates the vehicle traffic signal. The traffic signal management and control system according to claim 1, wherein the remaining distance analysis module also analyzes the position of a pedestrian in the crosswalk image in the crosswalk according to the length data of the crosswalk. Obtain a remaining distance that the pedestrian has to travel through the pedestrian crossing. The delay judgment module will analyze the passing speed to obtain a required travel time required for the pedestrian to move the remaining distance, and obtain the required travel distance. A travel delay time difference between the travel time and the current travel countdown time, and it will be judged according to the travel speed that the pedestrian's moving distance in the travel countdown time is greater than the halfway distance but less than the remaining distance, and the When the travel delay time difference exceeds a predetermined time threshold, the early switching signal is generated corresponding to the halfway time, the signal control unit will be triggered by the early switching signal, and the pedestrian signal system is controlled to switch after the halfway time is over. Activate the no-pass signal. The traffic signal management and control system according to claim 1, wherein the signal control device further includes a signal to connect the pedestrian signal system, and will switch to activate the pedestrian traffic signal when the pedestrian signal system is detected At this time, the image capture control unit that controls the image capture device to start image capture. A traffic signal management and control system, which is suitable for controlling a pedestrian signal system and a vehicle signal system installed on a crosswalk. The crosswalk crosses a central island. The traffic signal control system includes: An image capture device that can capture images of the crosswalk to obtain a crosswalk image; and a signal control device, the signal is connected to the image capture device, and the signal is connected to the vehicle signal system The pedestrian signal system includes an image analysis unit, a timing reading unit, a traffic status analysis unit, and a signal control unit. The image analysis unit analyzes and identifies the pedestrian crossing from the crosswalk image The time reading unit can read a countdown time of a pedestrian pass sign of the pedestrian sign system and every pedestrian on the crosswalk. The pass status analysis unit has a built-in corresponding pedestrian crossing The length data of the pedestrian crossing of the road, including a passing speed analysis module, a remaining distance analysis module, and a delay judgment module. The passing speed analysis module will analyze the pedestrian crossing according to the length data of the pedestrian crossing The movement of a pedestrian in the road image relative to the pedestrian crossing to obtain a passing speed. The remaining distance analysis module will analyze the pedestrian crossing image to determine that the pedestrian has not moved through the central island. A midway distance between the pedestrian and the central island, and the remaining distance that the pedestrian has to travel through the crosswalk is obtained by analysis. The delay judgment module will analyze the passing speed to obtain the remaining distance for the pedestrian to move. The required travel time is required, and a travel delay time difference between the required travel time and the current travel countdown time is obtained, and the travel distance of the pedestrian during the travel countdown time will be determined based on the travel speed greater than the When the midway distance is less than the remaining distance, and it is determined that the transit delay time difference exceeds a predetermined time threshold, the analysis obtains the A halfway time required for pedestrians to reach the central island, and an early switching signal is generated in response to the halfway time. The signal control unit will be triggered by the early switching signal and control the pedestrian signal system to end the halfway time. After that, switch to activate the prohibition sign. The traffic signal management and control system according to claim 4, wherein the signal control device further includes a signal to connect the pedestrian signal system, and the pedestrian traffic signal will be switched on when the pedestrian signal system is detected At this time, the image capture control unit that controls the image capture device to start image capture. A traffic signal management and control method includes the following steps: (A) make a traffic signal control system move towards a pedestrian crossing corresponding to a pedestrian signal system to perform image capture to obtain a crosswalk image; (B) make the The traffic signal management and control system analyzes the crosswalk image based on the length of a crosswalk of the crosswalk to obtain the speed of a pedestrian; and (C) includes the following substeps: (C-4) Make the traffic number When the traffic signal control system analyzes the image of the pedestrian crossing and judges that the pedestrian has not walked through a central island, it analyzes and obtains a midway distance between the pedestrian and the central island; (C-2) Make the traffic signal control system based on the The traffic speed determines whether the pedestrian's moving distance within a countdown time of the pedestrian signal system is less than or equal to the midway distance; and (C-3) enables the traffic signal control system to determine whether the pedestrian is in When the travel distance within the countdown time is less than or equal to the halfway distance, analyze the halfway time required for the pedestrian to reach the central island, and calculate the halfway delay time difference between the halfway time and the transit countdown time, and Control the vehicle signal system to switch and activate the vehicle traffic signal after delaying the halfway delay time difference. The traffic signal management and control method according to claim 6, wherein the step (C) further includes a sub-step (C-1) for the traffic signal management and control system to analyze the crosswalk image to obtain the pedestrian crossing the pedestrian A remaining distance to be traveled on the road, this sub-step (C-2) also enables the traffic signal control system to analyze the required travel time required for the pedestrian to walk the remaining distance based on the travel speed, and judge it When the required travel time is greater than the travel countdown time, a travel delay time difference between the travel countdown time and the required travel time is calculated, and the traffic signal control system judges that the pedestrian is at the travel speed based on the travel speed. When the travel distance within the countdown time is greater than the midway distance but less than the remaining distance, it is determined whether the transit delay time difference is greater than a predetermined time threshold, and this sub-step (C-3) also makes the traffic sign control system judge When the passage delay time difference is greater than the predetermined time threshold, the pedestrian signal system is controlled to switch to start a no-pass signal after the end of the halfway time countdown. A traffic signal management and control method includes the following steps: (A) make a traffic signal control system move towards a pedestrian crossing corresponding to a pedestrian signal system to perform image capture to obtain a crosswalk image; (B) make the The traffic signal control system is based on the pedestrian crossing Analyze the crosswalk image of a pedestrian crossing length data to obtain the speed of a pedestrian; and (C) include the following sub-steps: (C-1) Make the traffic signal control system analyze the crosswalk image to obtain When the pedestrian has to travel the remaining distance to travel through the crosswalk, (C-4) the traffic signal control system analyzes the crosswalk image and judges that the pedestrian has not walked through a central island. A midway distance between the pedestrian and the central island. Sub-step (C-2) enables the traffic signal control system to analyze the required travel time required for the pedestrian to travel the remaining distance based on the travel speed, and then determine the When the required transit time is greater than a countdown time of the pedestrian signal system, calculate and obtain a transit delay time difference between the countdown time and the required transit time, and make the traffic signal control system judge according to the transit speed When the pedestrian's travel distance in the countdown time is greater than the midway distance but less than the remaining distance, it is determined whether the transit delay time difference is greater than a predetermined time threshold, and substep (C-3) makes the traffic signal control When the system judges that the transit delay time difference is greater than the predetermined time threshold, analyzes the halfway time required for the pedestrian to reach the central island, and controls the pedestrian signal system to switch to a prohibited passage after the end of the halfway time countdown. Sign.

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