A traffic signal control system and control method based on pedestrian priority
Through a pedestrian-first traffic signal control system, combined with pedestrian action module, central processing module and traffic signal display module, the problem that existing traffic signal control methods cannot accurately coordinate the passage of pedestrians and motor vehicles is solved, and traffic efficiency is improved and safety is guaranteed.
Patent Information
- Application Number
- CN202411929062.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-04-08
AI Technical Summary
The existing traffic signal control methods cannot accurately coordinate the passage of pedestrians and motor vehicles, resulting in waste of traffic resources and safety hazards.
The traffic signal control system based on pedestrian priority is adopted, and the traffic signal management is achieved with pedestrian priority and motor vehicles passing normally through the coordinated work of the pedestrian action module, central processing module and traffic signal display module.
It improves traffic efficiency, ensures the safety of pedestrians, and avoids congestion in motor vehicles, providing reliable traffic safety guarantees.
Smart Images
Figure CN119785467A_ABST
Abstract
Description
Technical Field
[0001] A traffic signal control system and control method based on pedestrian priority belong to the technical field of intelligent traffic system. More specifically, the present invention relates to an intelligent traffic management control system and control method for zebra crossings with pedestrians but without traffic signal management. Background Art
[0002] "Give way to pedestrians" is the only traffic node on the current traffic road with pedestrians crossing the zebra crossing but no traffic signal control. The warning "Give way to pedestrians" is intended to remind motor vehicle drivers to slow down and give priority to pedestrians. However, such warning words on the ground are difficult to serve as warnings in advance, especially in development zones or sections of national highways with relatively fast speeds. When pedestrians ignore the traffic conditions and pass through directly, it is bound to bring traffic safety hazards. At the same time, for streets with dense traffic, the disorderly crossing of pedestrians will cause motor vehicle congestion.
[0003] The existing fixed-time point switching traffic signal control and countdown traffic signal control method is a fixed traffic signal control method. In this method, regardless of whether there are people passing or cars passing, the signal control cannot accurately coordinate the traffic road traffic management function, thereby causing a waste of traffic resources and even burying traffic safety hazards.
[0004] To solve the above problems, a traffic signal control system and control method based on pedestrian priority is proposed. This is based on pedestrian priority but not excessive priority. It not only guarantees the priority of pedestrians, but also guarantees the right of way for motor vehicles to travel normally. While improving traffic efficiency, it also provides reliable protection for traffic safety. Summary of the invention
[0005] The embodiments of the present invention provide a traffic signal control system and control method based on pedestrian priority, which is a traffic signal management solution that changes the conscious behavior of "cars give way to people" in the above-mentioned background to pedestrian priority and ensures the normal passage of motor vehicles. Its content includes pedestrian priority passage, where pedestrians who need to pass issue a passage instruction (including but not limited to pressing a button or scanning a code). After the system receives the instruction, the pedestrian action management module cooperates with the gate to open or close, the central processing module calculates and issues a new instruction, and after the traffic signal module and the pedestrian action module receive the instruction, the traffic signal is displayed or switched, and the gate acts according to the instruction.
[0006] The solution adopted by the present invention to solve the above problem is: the pedestrian action module includes a button or a code scan, roadside enclosure (including a barrier), an infrared sensor device (or other electronic sensor device), and an electronic control unit. The specific process includes that the pedestrian issues a crossing demand instruction by pressing a pedestrian passage button or scanning a code, the system receives the instruction, and after processing by the central processing module, the roadside barrier is opened and a voice reminder is given to release the pedestrian. After the barrier is opened for N seconds (N is specified by the traffic control department or set according to relevant laws and regulations), it is automatically closed and a pedestrian passage instruction is issued; if the infrared (or other electronic device) does not sense the pedestrian passing through the barrier when the barrier is closed, the instruction is terminated.
[0007] The central processing module includes a system control unit and an external system management unit. The specific process includes: the passage instruction issued by the pedestrian action module is calculated by the system control unit and the external system management unit. If it is concluded that the instruction is to continue, the central processing module sends the passage instruction information to the pedestrian action module and the traffic signal display module, otherwise the instruction is terminated.
[0008] The traffic signal display module includes receiving the traffic instruction of the central processing module, performing traffic signal display processing and displaying The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments are briefly described below. Obviously, the drawings shown below are some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work: Figure 1 The present invention provides a traffic signal control system and a control method based on pedestrian priority, and a flowchart of the program design of an electronic control unit in a pedestrian action module.
[0010] Figure 2 The present invention provides a system program design flow chart of a central processing module of a traffic signal control system and a control method based on pedestrian priority according to an embodiment of the present invention. DETAILED DESCRIPTION
[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0012] The invention provides a traffic signal control system and a control method based on pedestrian priority, comprising a pedestrian action module, a central processing module and a traffic signal display module.
[0013] The pedestrian action module, mechanical gate, including enclosure and pedestrian gate, infrared sensing equipment (or other electronic sensing equipment), voice equipment, the length of the enclosure must exceed the width of the zebra crossing by more than one meter. The switch design of the gate should ensure that it can be opened or closed electrically by infrared in the direction of motor vehicles, and can be opened freely and closed automatically in the direction of the sidewalk.
[0014] The pedestrian motion module, electronic unit control system, please see Figure 1 After the pedestrian issues a pass command, the central processing module receives the command. After calculation, if the result is that pedestrians are prohibited from passing, the command is sent to the traffic display information module. If the result is that pedestrians are allowed to pass, the command is sent to the traffic display information module at the same time, and the gate is opened to allow pedestrians to pass. After N seconds, the gate is closed and the infrared sensor sends the pedestrian passage status. When the infrared sensor shows that no one is passing, the prohibition command is sent to the traffic display information module.
[0015] The central processing module, see Figure 2 First, the system control unit program control cannot continuously issue pass instructions within the specified time interval, that is, after the central processing module receives the pass instruction from the pedestrian action module, it first enters the system control unit. When the system determines that the time between this instruction and the last instruction is less than a release rolling cycle specified by the competent department, the current instruction is terminated. When the system determines that the time between this instruction and the last instruction exceeds a release rolling cycle specified by the competent department, it enters the next unlimited plug-in system management program. The program gives priority to receiving plug-in system instructions and terminates this program. If there is no plug-in system program instruction, it enters the limited plug-in system management program.
[0016] The central processing module and the limited plug-in system management program comprehensively adjust and modify the new instructions according to the above instructions and external instructions from the limited plug-in system, and send them to the traffic signal display module.
[0017] The traffic signal display module receives the above instructions and displays corresponding information, or switches to display corresponding information.
[0018] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A traffic signal control system and control method based on pedestrian priority, the main features of which include a pedestrian action module, a central processing module, and a traffic signal display module. The specific steps are as follows: Step 1. In the pedestrian action module, the pedestrian issues a crossing demand instruction (button or code scanning). Step 2. In the central processing module, the system control unit receives the instruction in the above step 1, and the system sets the judgment conditions, including a. The interval between the issuance of two demand instructions (button or code scanning) shall not be less than one rolling signal cycle, that is, including the duration of one pedestrian passage and the duration of one vehicle release and the necessary interval time, b. Reasonable deceleration or waiting time for motor vehicle passage (the specific time is determined by the traffic management department). When the above conditions are met, enter the next step, otherwise terminate this instruction. Step 3. The central processing module, the external system management unit, receives the instruction in the above step 2, and its external system instruction judgment conditions include limited management trunk road coordination control system (green wave section), limited management district city coordination control system, unlimited obedience special control system (such as bus priority, time priority, ambulance priority, rescue vehicle priority, etc.). When the above external system judgment conditions are met, enter the next step, and the instruction information is sent to the pedestrian action module and the traffic signal display module. Otherwise, terminate this instruction. Step 4. The pedestrian action module, according to the instruction of the above step 3, sends instructions to the signal display module and the pedestrian action module. The pedestrian action module receives the instruction to open the gate and closes the gate after M seconds (the time is set by the traffic management department according to regulations). Step 5. After the pedestrian action module receives the instruction of the above step 3 and closes the gate according to the above step 4, when the infrared (or other electronic equipment) feedback shows that no pedestrians pass through the gate, the passage instruction is terminated. Step 6. The traffic signal display module, according to the instruction of the above step 4, the signal displays that pedestrians pass and motor vehicles are prohibited from passing. After X seconds (the continuous passage time is determined by the competent department), the system central processing module adjusts (the adjustment factors include but are not limited to the system-specified passage time, the infrared sensing monitoring time of pedestrians passing, or the pedestrian passage and motor vehicle release interaction time, take the minimum value) and sends the instruction to the next step. Step 7. The traffic signal display module adjusts and switches the pedestrian signal traffic display and the vehicle release signal display according to the instruction of the above step 6.
2. According to claim 1, a traffic signal control system and control method based on pedestrian priority, a pedestrian action module, wherein the characteristics include: The system is composed of an infrared (or other electronic device) sensing mechanical barrier, an infrared (or other electronic device) sensing voice reminder system, a pedestrian access switch (including but not limited to buttons or code scanning) and an electronic control unit system. The specific process includes that the pedestrian sends a crossing demand instruction through the pedestrian access button or scans the code, the system receives the instruction, and after processing by the central processing module, it opens the roadside barrier and gives voice reminders to release pedestrians. The barrier will automatically close after N seconds (N is specified by the traffic management department or set according to relevant laws and regulations), and the pedestrian access instruction is issued; if the infrared (or other electronic device) does not sense the pedestrian passing through the barrier when the barrier is closed, the instruction is terminated.
3. According to claim 2, a traffic signal control system and control method based on pedestrian priority, in the pedestrian action module, infrared (or other electronic equipment) sensing mechanical barriers, its characteristics include: Infrared (or other electronic equipment) sensing equipment, enclosures and gates. The enclosure length must be more than one meter beyond the width of the sidewalk. The gates must be designed to open freely with reverse infrared (or other electronic equipment) sensing, open with forward infrared (or other electronic equipment) control or close with infrared control. Infrared (or other electronic equipment) sensing transmits pedestrian passage information to the central processing module.
4. According to claim 2, a traffic signal control system and control method based on pedestrian priority, in the pedestrian action module, an infrared (or other electronic device) sensing voice reminder system, its characteristics include: Issue voice warning reminders according to system instructions.
5. According to claim 1, a traffic signal control system and control method based on pedestrian priority, the central processing module, wherein the features include: The system control unit and the external system management unit, the specific process includes: the pedestrian action module issues a passage instruction, which is calculated by the system control unit and the external system management unit. When it is concluded that the instruction continues, the central processing module sends the passage instruction information to the pedestrian action module and the traffic signal display module, otherwise the instruction is terminated.
6. According to claim 5, a traffic signal control system and control method based on pedestrian priority, a central processing module, a system control unit and an external system management unit, wherein the system control unit is characterized in that: Including a. The interval between two demand instructions (pressing a button or scanning a code) shall not be less than one rolling signal cycle, that is, it includes the duration of one pedestrian passage and one vehicle release time and the necessary interval time, b. Reasonable deceleration or waiting time for motor vehicle passage (the specific time is determined by the traffic management department); the characteristics of the external system management unit include limited management trunk road coordination control system (green wave section), limited management district city coordination control system, and unlimited obedience special control system (such as bus priority, time priority, ambulance priority, rescue vehicle priority, etc.).
7. According to claim 1, a traffic signal control system and control method based on pedestrian priority, a traffic signal display module, wherein the features include: Receive the traffic instructions from the central processing module, process and display the traffic signals.