Signal control method and system for entering and exiting of vehicles in garage of key place close to intersection
By setting up a rod lift detection module at the garage exit and communicating with the intersection signal control module, the intersection signal is locked to give priority to the garage exit vehicles, which solves the problems of mixed traffic and traffic congestion when entering and exiting the garage near the intersection, and realizes the protection of vehicle priority access and signal order.
Patent Information
- Application Number
- CN202411952416.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-28
AI Technical Summary
When entering and exiting garages in key places near the intersection, mixed traffic and lack of special phases lead to traffic congestion and safety hazards.
A rod lift detection module is installed at the garage exit. By communicating with the intersection signal control module, the intersection signal is locked to give priority to the garage exit vehicle, and the signal locking period is detected to protect the original signal order.
It effectively avoids mixed traffic between people and vehicles at the intersection, ensures priority access to vehicles at the garage exit, reduces traffic congestion and accident risks, and protects the signal order at the intersection.
Smart Images
Figure CN119723917A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of traffic safety control, and in particular to a signal control method and system for vehicle entry and exit of a garage at a key location near an intersection. Background Art
[0002] Garages near intersections are usually faced with complex traffic conditions. Typical safety issues include: First, the problem of mixed traffic of pedestrians and vehicles: At urban road intersections, especially those near key places, mixed traffic of pedestrians and vehicles is quite common. Pedestrians and vehicles pass under the same traffic lights, which increases the risk of conflicts and accidents.
[0003] Secondly, there is a lack of dedicated phases: many garage entrances and exits in key locations do not have dedicated phases, resulting in vehicles having to share the right of way with vehicles in other directions when entering and exiting, or right-turning vehicles having to stop and give way to pedestrians crossing the street, which can easily cause congestion and safety hazards during peak hours. Summary of the invention
[0004] In a first aspect of the present invention, in order to solve the above technical problems, a signal control method for vehicle entry and exit of a garage at a key location near an intersection is provided, the method comprising the following steps: S1. The exit barrier pole of the garage is provided with a bar lifting detection module, and the bar lifting detection module can transmit the barrier pole status information to the intersection signal control module, wherein the barrier pole status includes bar lifting and bar falling; S2. According to actual needs, the detection mechanism of the lifting bar detection module is selected, and when the detection mechanism detects the lifting bar, the intersection signal control module locks the intersection signal for vehicles at the garage exit to have priority passage; S3, setting an intersection signal locking feedback mechanism to confirm whether the intersection signal is in a locked state and detecting the locking period of the intersection signal; S4: When the detection mechanism detects the pole falling, the intersection signal resumes autonomy and releases the locked state.
[0005] Furthermore, the gate pole state of the raised pole is recorded as 1, and the gate pole state of the lowered pole is recorded as 0; when the single lifting time exceeds the set time, the gate pole is in an abnormal state, and the abnormal state returns to normal after the pole is lowered.
[0006] Furthermore, The locking state timer of the intersection signal is recorded as a; The control interval timer is recorded as b; The control interval time of the locking state of the intersection signal is recorded as B or function f(a); The upper limit of the holding time of the locked state of the intersection signal is A; The detection mechanism is state monitoring or pulse detection, where: The state monitoring is used to continuously monitor the state of the barrier pole; The pulse detection is used to detect the change of the state of the barrier pole within a specific time interval.
[0007] Furthermore, the barrier pole state is 1 and there is no abnormal state, and the judgment relationship b≥B or f(a) is: If the relation b≥B or f(a) is satisfied, the lifting bar detection module remotely controls the intersection signal control module to control the intersection signal to the locked state; Otherwise, the intersection signal control module does not respond to the bar lifting detection module.
[0008] Further, the setting of the intersection signal locking feedback mechanism includes: Determine whether the intersection signal enters the locked state: If not, the lift detection module remotely controls the intersection signal control module to control the intersection signal to the locked state; If so, the locking period of the intersection signal is detected.
[0009] Further, when the detection mechanism is the state monitoring, the detection interval is X, and the locking period of detecting the intersection signal includes: Initializing a locking state timer a of the intersection signal; Determine the relationship a≥A: If the relationship a≥A is not satisfied, the intersection signal resumes autonomy and releases the locked state; If the relationship a≥A is satisfied, then further determine the relationship a>0&a%X=0: If the relationship a>0&a%X=0 is not satisfied, then return to the locked state timer a of the intersection signal; If the relationship a>0&a%X=0 is satisfied, it is determined again whether the barrier pole state is 1: If the gate pole state is 1, return to the locked state timer a of the intersection signal; If the barrier pole state is 0, the intersection signal resumes autonomy and releases the locked state.
[0010] Furthermore, when the detection mechanism is the pulse detection, the extended time of the locked state of the intersection signal is recorded as Y, and the first extended time of the locked state of the intersection signal is recorded as Y1, and the extended time of the locked state of the intersection signal is recorded as Y2. The detection of the locking cycle of the intersection signal includes: When the intersection signal enters the locked state, Y =Y or Y1; Initializing a locking state timer a of the intersection signal; When the trigger pulse is on, Y =min{a+Y or Y2, A}, Judgment relation a≥ Y : If the relationship a≥ Y , the intersection signal resumes autonomy and releases the locked state; If the relationship a≥ is not satisfied Y , then returns to the locked state timer a of the intersection signal.
[0011] Furthermore, the intersection signal resumes autonomously and releases the locked state, including: The locked state timer a and the control interval timer b of the intersection signal are recovered, and the control interval timer b is initialized.
[0012] In a second aspect, the present invention provides a signal control system for vehicles entering and exiting a garage near a key location at an intersection, comprising: A barrier pole provided with a bar lift detection module, located at the garage exit, the bar lift detection module is used to detect the barrier pole status, wherein the barrier pole status includes bar lift and bar drop; The intersection signal control module, the lifting bar detection module is communicatively connected with the intersection signal control module, and is used to transmit the gate bar status information to the intersection signal control module to remotely control the status of the intersection signal light so that vehicles at the garage exit have priority.
[0013] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: The present invention communicates with the intersection signal control module through the lifting detection module on the gate pole to remotely control the state of the signal light, which is used for vehicles at the garage exit to have priority passage, thus avoiding the problem of mixed traffic of people and vehicles at the intersection; at the same time, by detecting the locking period of the intersection signal, the original signal order of the intersection can be protected to avoid traffic congestion. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0015] Figure 1 It is a flowchart of the present invention; Figure 2 This is a flowchart of the first embodiment of the present invention; Figure 3 This is a flowchart of the second embodiment of the present invention. DETAILED DESCRIPTION
[0016] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.
[0017] See also Figure 1 The present invention aims to provide a signal control method for vehicle entry and exit of a garage at a key location near an intersection, so as to solve the problem of mixed traffic and congestion of people and vehicles at the intersection.
[0018] The method mainly includes the following steps: S1. The exit barrier pole of the garage is provided with a barrier pole lifting detection module, which can transmit barrier pole status information to the intersection signal control module.
[0019] The gate pole status includes raising the pole and lowering the pole, and the gate pole status of raising the pole is recorded as 1, and the gate pole status of lowering the pole is recorded as 0.
[0020] The barrier lift detection module can convert the physical movement of the barrier bar into IO signals to achieve real-time monitoring and control of the barrier bar.
[0021] When the single lifting time exceeds the set time, the barrier bar is in an abnormal state, and the abnormal state returns to normal after the bar is lowered.
[0022] S2. According to actual needs, the detection mechanism of the barrier lifting detection module is selected. When the detection mechanism detects that the barrier is lifted, the intersection signal control module locks the intersection signal to give priority to vehicles at the garage exit.
[0023] The locking state timer of the intersection signal is recorded as a; the control interval timer is recorded as b; the control interval time of the locking state of the intersection signal is recorded as B or the function f(a); and the upper limit of the holding time of the locking state of the intersection signal is recorded as A.
[0024] Further explanation is that A and B are both universal parameters.
[0025] A is the maximum time that can be maintained from the beginning of an intersection signal lock state to the end of the intersection signal lock state. The upper limit of the intersection signal lock state is designed to protect the original intersection order from being affected by a single excessively long lock state.
[0026] B is the interval time from the end of the lock state to the beginning of the next lock state, which requires shielding the detection or control mechanism. The control interval time B is designed to protect the original intersection order from being interrupted by repeated lock states.
[0027] In particular, a dynamic control interval mechanism can also be designed for the control interval time, that is, the detection or response shielding duration after the end of the locking state is determined according to the duration of the previous round of locking state, which is represented by f(a) here.
[0028] In a further embodiment of the present invention, the detection mechanism is a state monitoring or pulse detection mode.
[0029] Condition monitoring is used to continuously monitor the status of barrier poles and is suitable for scenarios that require long-term monitoring.
[0030] Pulse detection is used to detect changes in the status of a barrier pole within a specific time interval and is suitable for time-sensitive scenarios.
[0031] S3. Setting an intersection signal locking feedback mechanism to confirm whether the intersection signal is in a locked state and detecting the locking period of the intersection signal.
[0032] S4: When the detection mechanism detects the pole dropping, the intersection signal returns to the autonomous and unlocked state.
[0033] Embodiment 1 See also Figure 2 ,When the detection mechanism is state monitoring, two aspects are ,elaborated on the abnormal state of the gate pole and the ,control constraints of the intersection signal.
[0034] First, the abnormal state of the barrier pole under condition monitoring is explained.
[0035] If the barrier pole is lifted once for more than a certain period of time, that is, the duration of the barrier pole state 1 exceeds the set 1 second, it can be determined that the barrier pole is in an abnormal state. After the barrier pole is lowered, the abnormal state returns to normal.
[0036] Whether to enable abnormal status judgment needs to be determined based on actual usage.
[0037] Then, the method of intersection signal control constraint under condition monitoring is explained.
[0038] The detection interval is X, that is, the interval between two active status checks is X, and X can be set. The design detection interval X can also be regarded as the extension time of the intersection signal lock state under the status monitoring mechanism. Because in fact, the intersection signal lock state is a continuous lock control, and the intersection signal lock state is released autonomously through recovery.
[0039] When the barrier pole state is 1 and there is no abnormal state, the relationship b≥B or f(a) is judged: if the relationship b≥B or f(a) is satisfied, the barrier pole lifting detection module remotely controls the intersection signal control module to control the intersection signal to a locked state; otherwise, the intersection signal control module does not respond to the barrier pole lifting detection module.
[0040] Determine whether the intersection signal enters a locked state: if not, the lift detection module remotely controls the intersection signal control module to control the intersection signal to a locked state; if so, detect the locking period of the intersection signal.
[0041] Detecting the locking cycle of the intersection signal also includes the following steps: Initialize the intersection signal's locked state timer a.
[0042] Determine the relationship a≥A: If the relationship a≥A is not satisfied, the intersection signal will resume the autonomous and unlocked state; if the relationship a≥A is satisfied, further determine the relationship a>0&a%X=0: If the relationship a>0&a%X=0 is not satisfied, the process returns to the locked state timer a of the intersection signal; if the relationship a>0&a%X=0 is satisfied, the process determines whether the gate pole state is 1 again: If the barrier pole state is 1, the intersection signal returns to the locked state timer a; if the barrier pole state is 0, the intersection signal returns to the autonomous, unlocked state.
[0043] When the intersection signal recovers the autonomous and unlocked state, the locked state timer a and the control interval timer b of the intersection signal are recovered, and the control interval timer b is initialized.
[0044] Embodiment 2 See also Figure 3 ,When the detection mechanism is pulse detection, two aspects are ,explaned on the abnormal state of the gate pole and the ,control constraints of the intersection signal.
[0045] First, the abnormal state of the gate pole under pulse detection is explained.
[0046] Every time a single stick-lifting exceeds a certain time, that is, every time the stick-lifting state duration reaches an integer multiple of J, J can be set to generate a virtual pulse, which helps to simulate pulse events in the absence of physical pulses.
[0047] Whether to enable the virtual pulse depends on the actual usage. The virtual pulse shares the same signal with the real pulse.
[0048] Then, the method of intersection signal control constraint under pulse detection is explained.
[0049] The extended time of the locked state of the intersection signal is recorded as Y, the first extended time of the locked state of the intersection signal is recorded as Y1, and the continuously extended time of the locked state of the intersection signal is recorded as Y2.
[0050] It should be noted that Y, Y1 and Y2 can be set independently, and the locking state of each intersection signal can be extended by Y to make up for the time required at the current time point, rather than directly increasing the entire extension time.
[0051] When the barrier pole state is 1 and there is no abnormal state, the relationship b≥B or f(a) is judged: if the relationship b≥B or f(a) is satisfied, the barrier pole lifting detection module remotely controls the intersection signal control module to control the intersection signal to a locked state; otherwise, the intersection signal control module does not respond to the barrier pole lifting detection module.
[0052] Determine whether the intersection signal enters a locked state: if not, the lift detection module remotely controls the intersection signal control module to control the intersection signal to a locked state; if so, detect the locking period of the intersection signal.
[0053] Detecting the locking cycle of the intersection signal also includes the following steps: When the intersection signal enters the locked state, Y =Y or Y1.
[0054] Initialize the intersection signal's locked state timer a.
[0055] When the trigger pulse is on, Y =min{a+Y or Y2,A}.
[0056] Judgment relation a≥ Y :If the relationship a≥ Y , the intersection signal resumes autonomously and releases the locked state; if the relationship a≥ Y , then returns to the locked state timer a of the intersection signal.
[0057] When the intersection signal recovers the autonomous and unlocked state, the locked state timer a and the control interval timer b of the intersection signal are recovered, and the control interval timer b is initialized.
[0058] The intersection signal lock state in the first and second embodiments includes but is not limited to the signal all-red state, so that vehicles at the garage exit can have priority passage. The so-called all-red state means that the lights in all directions are red.
[0059] The present invention also protects a signal control system for vehicle entry and exit of a garage at a key location near an intersection, which mainly includes a gate pole provided with a pole lifting detection module and an intersection signal control module.
[0060] In a further embodiment of the present invention, a barrier pole provided with a bar lifting detection module is located at the garage exit, and the bar lifting detection module is used to detect the state of the barrier pole, wherein the barrier pole state includes bar lifting and bar dropping.
[0061] The intersection signal control module is in communication connection with the lift detection module, and is used to transmit the gate pole status information to the intersection signal control module, so as to remotely control the status of the intersection signal light, so that vehicles at the garage exit have priority.
[0062] The present invention is suitable for garage entrances and exits at key locations near intersections, especially during peak hours or special events, and can effectively manage traffic flow and reduce congestion and accident risks.
[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A signal control method for vehicle entry and exit of a garage at a key location near an intersection, characterized in that: The method comprises the following steps: S1. The exit barrier pole of the garage is provided with a bar lifting detection module, and the bar lifting detection module can transmit the barrier pole status information to the intersection signal control module, wherein the barrier pole status includes bar lifting and bar falling; S2. According to actual needs, the detection mechanism of the lifting bar detection module is selected, and when the detection mechanism detects the lifting bar, the intersection signal control module locks the intersection signal for vehicles at the garage exit to have priority passage; S3, setting an intersection signal locking feedback mechanism to confirm whether the intersection signal is in a locked state and detecting the locking period of the intersection signal; S4: When the detection mechanism detects the pole falling, the intersection signal resumes autonomy and releases the locked state.
2. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 1, characterized in that: The gate pole state of the lifting bar is recorded as 1, and the gate pole state of the lowering bar is recorded as 0; when the single lifting time exceeds the set time, the gate pole is in an abnormal state, and the abnormal state returns to normal after the lowering bar.
3. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 2, characterized in that: The locked state timer of the intersection signal is recorded as a; The control interval timer is recorded as b; The control interval time of the locking state of the intersection signal is recorded as B or function f(a); The upper limit of the holding time of the locked state of the intersection signal is A; The detection mechanism is state monitoring or pulse detection, where: The state monitoring is used to continuously monitor the state of the barrier pole; The pulse detection is used to detect the change of the state of the barrier pole within a specific time interval.
4. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 3, characterized in that: The barrier pole state is 1 and there is no abnormal state, and the judgment relationship b≥B or f(a): If the relation b≥B or f(a) is satisfied, the lifting bar detection module remotely controls the intersection signal control module to control the intersection signal to the locked state; Otherwise, the intersection signal control module does not respond to the bar lifting detection module.
5. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 4 or 3, characterized in that: The setting of the intersection signal locking feedback mechanism includes: Determine whether the intersection signal enters the locked state: If not, the lift detection module remotely controls the intersection signal control module to control the intersection signal to the locked state; If so, the locking period of the intersection signal is detected.
6. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 3, characterized in that: When the detection mechanism is the state monitoring, the detection interval is X, and the locking period of the detection intersection signal includes: Initializing a locking state timer a of the intersection signal; Judgment relationship a≥A: If the relationship a≥A is not satisfied, the intersection signal resumes autonomy and releases the locked state; If the relationship a≥A is satisfied, then further determine the relationship a>0&a%X=0: If the relationship a>0&a%X=0 is not satisfied, then return to the locked state timer a of the intersection signal; If the relationship a>0&a%X=0 is satisfied, it is determined again whether the barrier pole state is 1: If the gate pole state is 1, return to the locked state timer a of the intersection signal; If the barrier pole state is 0, the intersection signal resumes autonomy and releases the locked state.
7. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 3, characterized in that: When the detection mechanism is the pulse detection, the lock state of the intersection signal can be extended for a time Y, the first lock state of the intersection signal can be extended for a time Y1, and the lock state of the intersection signal can be extended for a time Y2. The detection of the lock cycle of the intersection signal includes: When the intersection signal enters the locked state, Y =Y or Y1; Initializing a locking state timer a of the intersection signal; When the trigger pulse is on, Y =min{a+Y or Y2, A}, Judgment relation a≥ Y : If the relationship a≥ Y , the intersection signal resumes autonomy and releases the locked state; If the relationship a≥ is not satisfied Y , then returns to the locked state timer a of the intersection signal.
8. The signal control method for vehicle entry and exit of a garage at a key location near an intersection according to claim 3, characterized in that: The intersection signal resumes autonomously and releases the locked state, including: The locked state timer a and the control interval timer b of the intersection signal are recovered, and the control interval timer b is initialized.
9. The signal control system for vehicles entering and exiting the garage at key locations near intersections is characterized by: include: A barrier pole provided with a bar lift detection module, located at the garage exit, the bar lift detection module is used to detect the barrier pole status, wherein the barrier pole status includes bar lift and bar drop; The intersection signal control module, the lifting bar detection module is communicatively connected with the intersection signal control module, and is used to transmit the gate bar status information to the intersection signal control module to remotely control the status of the intersection signal light so that vehicles at the garage exit have priority.