Management control method for parking times at intersection

Abstract

The technical scheme of the invention discloses a management control method for the number of parking times at an intersection. According to the invention, road electronic police, internet road conditions and traffic signals are integrated to control phase data to automatically calculate the intersection parking times, the management and control automation level of the intersection parking times is improved, the discovery and handling efficiency of congestion alarms is improved, and traffic congestion is reduced.

Description

Technical Field

[0001] The invention relates to a management and control method for the number of stops at an intersection, belonging to the technical field of intelligent transportation. Background Art

[0002] The number of stops at intersections is the core indicator of traffic police congestion control. It can most objectively reflect the state of traffic congestion at intersections and is most deeply felt by travelers. According to the needs of traffic police congestion control, for intersections with more than two stops, traffic police are required to dispatch officers to the scene immediately.

[0003] However, in actual applications, traffic police judge the number of parking incidents at intersections either manually based on video images or discover intersections with a large number of parking incidents through on-site patrols, citizen complaints, etc. The biggest pain point for traffic police in traffic jam management is the lack of data support, which makes it impossible to timely and comprehensively identify traffic jams with a large number of parking incidents, resulting in a low level of automation and poor traffic jam management results. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the number of parking times at intersections in the prior art is dependent on manual judgment, which leads to poor congestion warning management effect.

[0005] In order to achieve the above object, the technical solution of the present invention is to disclose a method for managing and controlling the number of stops at an intersection, which is characterized by comprising the following steps:

[0006] Step 1: Establish a road network topology structure and connect road sections and intersections;

[0007] Step 2: Establish a mapping relationship between electronic police equipment and intersections;

[0008] Step 3: Real-time access to electronic police equipment to collect data, Internet traffic data, and traffic signal control phase data;

[0009] Step 4: for each vehicle collected by the electronic police device at a specific intersection, based on the vehicle license plate, search for the previous electronic police device that detected the same vehicle license plate, define the interval between two consecutive electronic police devices as the device pair interval, and inversely infer the vehicle driving section sequence of the device pair interval;

[0010] Step 5: Correct the vehicle entry and exit time of the vehicle driving section associated with the specific intersection, as follows:

[0011] When the electronic police detects that the traffic signal of the lane corresponding to the vehicle passing time is green, the time t when the vehicle passes the stop line is calculated. ′ outCorrected to the vehicle passing time plus K1 seconds; when the electronic police detects that the traffic signal of the lane corresponding to the vehicle passing time is red, the time t when the vehicle passes the stop line is ′ out Corrected to add K1 second to the red light end time;

[0012] When the device has only one road section in the interval, the time t when the vehicle enters the road section is i ′ n Corrected to the detection time of the previous electronic police device plus K2 seconds; when the device has more than one road section in the interval, the time t when the vehicle enters the road section i ′ n The correction is the corrected vehicle exit segment time minus the travel time converted based on Internet traffic conditions;

[0013] Step 6: Calculate the number of vehicle stops. When the corrected vehicle entry and exit times are all within one green light phase, the number of stops is 0. When the corrected vehicle entry and exit times are not within one green light phase, the number of stops is the number of complete red light durations included in the vehicle entry and exit time difference plus 1.

[0014] Step 7: Calculate the number of stops at a specific intersection, specifically by using the average number of stops of all vehicles at the intersection over a period of time;

[0015] Step 8: When the number of stops at an intersection exceeds the set threshold, the system automatically issues an alarm and sends it to the corresponding traffic police officer according to the jurisdiction of the intersection;

[0016] Step 9: The traffic police personnel go to the scene to handle the situation, and after the handling is completed, the handling information will be fed back to the system.

[0017] Preferably, in step 1, the topological association relationship of the road network topological structure is: {section number, section length, upstream intersection number, downstream intersection number}.

[0018] Preferably, in step 2, the mapping relationship is expressed as: {electronic police equipment number, intersection number, collection lane number}.

[0019] Preferably, in step 3, the data collected by the electronic police equipment is in the format of: {collected lane number, vehicle license plate, passing time}; the Internet traffic condition data format is: {section number, section travel speed}; the traffic signal control phase data format is: {intersection number, phase number, phase start time, phase end time}.

[0020] Preferably, in step 4, when the device has only one road section for the interval, the road section is determined to be a vehicle driving section;

[0021] When there is more than one road segment in the device-to-device interval, traverse all connected road segment sets, and select the road segment set whose vehicle travel time in the device-to-device interval calculated based on the electronic police detection time is closest to the device-to-device interval travel time based on the Internet road condition conversion as the driving road segment sequence of the vehicle in the device-to-device interval, as follows:

[0022] Target: constraint: in, The equipment is based on the electronic police detection time to calculate the vehicle travel time in the interval; The device-to-device travel time for the interval is converted based on Internet traffic conditions;

[0023] S i,j is the set of all connected sections between the i-th device and the j-th device;

[0024] t i is the vehicle passing time of the i-th device, t j is the vehicle passing time of the jth device;

[0025] P k is the k-th road segment set, k = 1, 2, ..., n;

[0026] r m is the mth road section;

[0027] is the ratio of the length of the mth road segment to the Internet traffic speed;

[0028] is the length of the mth road section;

[0029] is the Internet traffic speed of the mth road segment.

[0030] Preferably, in step 5, the time t at which the vehicle passes the stop line ′ out The calculation is done using the following formula:

[0031]

[0032] Among them, t i is the vehicle passing time of the i-th device;

[0033] F g The phase start time of the current cycle of the lane where the vehicle passes;

[0034] F z The phase end time of the current cycle of the lane where the vehicle passes;

[0035] F g+1The phase start time of the next cycle of the lane where the vehicle passes;

[0036] The time t when the vehicle enters the road section i ′ n The calculation is done using the following formula:

[0037]

[0038] Among them, t j is the vehicle passing time of the jth device;

[0039] m is the number of road sections in the equipment pair interval;

[0040] It is the ratio of the length of the mth road segment to the Internet traffic speed.

[0041] Preferably, in step 6, the number of parking times n is calculated using the following formula:

[0042]

[0043] Among them, F g The phase start time of the current cycle of the lane where the vehicle passes;

[0044] F z The phase end time of the current cycle of the lane where the vehicle passes;

[0045] F g+1 The phase start time of the next cycle of the lane where the vehicle passes;

[0046] a is the complete red light duration;

[0047] τ is the number of complete red light durations contained in the time difference between vehicles entering and exiting the road section.

[0048] Preferably, in step 7, the average number of times all vehicles stop at the intersection within a period of time is The calculation is done using the following formula:

[0049]

[0050] Among them, q is the number of vehicles at the intersection within a period of time;

[0051] n is the number of stops for each vehicle.

[0052] The application of the present invention integrates road electronic police, Internet road conditions and traffic signal control phase data to automatically calculate the number of stops at intersections, improve the level of automation in the management and control of the number of stops at intersections, improve the efficiency of discovering and handling congestion warnings, and reduce traffic congestion. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the process of the present invention.

[0054] Figure 2 It is a schematic diagram of an intersection in an example of the present invention. DETAILED DESCRIPTION

[0055] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0056] like Figure 1 As shown, a method for managing and controlling the number of stops at an intersection disclosed in an embodiment of the present invention specifically includes the following steps:

[0057] Step 1: Establish a road network topology structure, establish a connection relationship between road sections and intersections, and the topological association relationship is: {road section number, road section length, upstream intersection number, downstream intersection number}.

[0058] Step 2: Establish a mapping relationship between the electronic police equipment and the intersection, specifically: {electronic police equipment number, intersection number, collection lane number}.

[0059] Step 3: Real-time access to electronic police equipment to collect data, Internet traffic data, and traffic signal control phase data, where the electronic police equipment collects data in the following format: {collected lane number, vehicle license plate, vehicle passing time}, Internet traffic data in the following format: {section number, section travel speed}, and traffic signal control phase data in the following format: {intersection number, phase number, phase start time, phase end time}.

[0060] Step 4: For each vehicle collected by the electronic police device at a specific intersection, based on the vehicle license plate, search for the previous electronic police device that detected the same vehicle license plate, define the interval between two consecutive electronic police devices as the device pair interval, and reversely infer the vehicle driving section sequence of the device pair interval, as follows:

[0061] When the device has only one road section for the interval, it determines that the road section is the vehicle driving section;

[0062] When there is more than one road segment in the device-to-device interval, traverse all connected road segment sets, and select the road segment set whose vehicle travel time in the device-to-device interval calculated based on the electronic police detection time is closest to the device-to-device interval travel time based on the Internet road condition conversion as the driving road segment sequence of the vehicle in the device-to-device interval, as follows:

[0063] Target:

[0064] constraint:

[0065] in, The equipment is based on the electronic police detection time to calculate the vehicle travel time in the interval;

[0066] The device-to-device travel time for the interval is converted based on Internet traffic conditions;

[0067] S i,j is the set of all connected sections between the i-th device and the j-th device;

[0068] t i is the vehicle passing time of the i-th device, t j is the vehicle passing time of the jth device;

[0069] P k is the k-th road segment set, k = 1, 2, ..., n;

[0070] r m is the mth road section;

[0071] is the ratio of the length of the mth road segment to the Internet traffic speed;

[0072] is the length of the mth road section;

[0073] is the Internet traffic speed of the mth road segment.

[0074] Step 5: Correct the vehicle entry and exit time of the vehicle driving section associated with the specific intersection, as follows:

[0075] When the electronic police detects that the lane traffic signal corresponding to the vehicle passing time is green, the time when the vehicle passes the stop line is corrected to the vehicle passing time plus 2 seconds; when the electronic police detects that the lane traffic signal corresponding to the vehicle passing time is red, the time when the vehicle passes the stop line is corrected to the red light end time plus 2 seconds:

[0076]

[0077] Among them, t i is the vehicle passing time of the i-th device;

[0078] F g The phase start time of the current cycle of the lane where the vehicle passes;

[0079] F zThe phase end time of the current cycle of the lane where the vehicle passes;

[0080] F g+1 The phase start time of the next cycle of the lane where the vehicle passes;

[0081] When the device has only one road section in the interval, the time t when the vehicle enters the road section is i ′ n Corrected to the detection time of the previous electronic police device plus 5 seconds; when the device has more than one road section in the interval, the time t i ′ n Corrected to the corrected vehicle exit time t ′ out Subtract travel time based on internet traffic conversion:

[0082]

[0083] Among them, t j is the vehicle passing time of the jth device;

[0084] m is the number of road sections in the equipment pair interval;

[0085] It is the ratio of the length of the mth road segment to the Internet traffic speed.

[0086] Step 6: Calculate the number of vehicle stops. When the corrected vehicle entry and exit times are all within a green light phase, the number of stops n is 0. When the corrected vehicle entry and exit times are not within a green light phase, the number of stops n is the number of complete red light durations contained in the vehicle entry and exit time difference plus 1:

[0087]

[0088] Among them, F g The phase start time of the current cycle of the lane where the vehicle passes;

[0089] F z The phase end time of the current cycle of the lane where the vehicle passes;

[0090] F g+1 The phase start time of the next cycle of the lane where the vehicle passes;

[0091] a is the complete red light duration;

[0092] τ is the number of complete red light durations contained in the time difference between vehicles entering and exiting the road section.

[0093] Step 7: Calculate the number of stops at a specific intersection. The specific calculation method is the average number of stops of all vehicles at the intersection within 5 minutes:

[0094]

[0095] Among them, Q is the number of vehicles at the intersection within 5 minutes;

[0096] n is the number of stops for each vehicle;

[0097] The number of stops at the intersection.

[0098] Step 8: When the number of stops at an intersection exceeds 2, the system automatically issues an alarm and sends it to the corresponding traffic police officer according to the jurisdiction of the intersection.

[0099] Step 9: The traffic police personnel go to the scene to handle the situation, and after the handling is completed, the handling information will be fed back to the system.

[0100] Embodiment 2, as Figure 2 As shown, taking an actual intersection in a certain megacity as an example, the detailed implementation scheme of the present invention is introduced.

[0101] Step 1: Establish a road network topology structure, establish a connection relationship between road sections and intersections, and the topological association relationship is: {road section number 15926, road section length 310 meters, upstream intersection number 3116, downstream intersection number 3117}.

[0102] Step 2: Establish a mapping relationship between electronic police equipment and intersections, specifically: {electronic police equipment number 31011001000030, intersection number 3116, collection lane number 01-03}, {electronic police equipment number 31011001000031, intersection number 3117, collection lane number 01-03}.

[0103] Step 3: Real-time access to electronic police equipment to collect data, Internet traffic data, and traffic signal control phase data. The data format collected by the electronic police equipment is: {collection lane number 02, vehicle license plate Shanghai AXXX, vehicle passing time 2024-06-28 08:03:11.000}, Internet traffic data format: {section number 15926, section travel speed 8km / h}, traffic signal control phase data format: {intersection number 3117, phase number A, phase start time 2024-06-28 08:02:14, phase end time 2024-06-28 08:03:31}.

[0104] Step 4: For each vehicle collected by the electronic police device at a specific intersection, based on the vehicle license plate, search for the previous electronic police device that detected the same vehicle license plate, define the interval between two consecutive electronic police devices as the device pair interval, and reversely infer the vehicle driving section sequence of the device pair interval, as follows:

[0105] When the device has only one road section for the interval, it determines that the road section is the vehicle driving section;

[0106] When there is more than one road segment in the device-to-device interval, traverse all connected road segment sets, and select the road segment set whose vehicle travel time in the device-to-device interval calculated based on the electronic police detection time is closest to the device-to-device interval travel time based on the Internet road condition conversion as the driving road segment sequence of the vehicle in the device-to-device interval, as follows:

[0107] Target:

[0108] constraint:

[0109] in, The equipment is based on the electronic police detection time to calculate the vehicle travel time in the interval;

[0110] The device-to-device travel time for the interval is converted based on Internet traffic conditions;

[0111] S i,j is the set of all connected sections between the i-th device and the j-th device;

[0112] t i is the vehicle passing time of the i-th device, t j is the vehicle passing time of the jth device;

[0113] P k is the k-th road segment set, k = 1, 2, ..., n;

[0114] r m is the mth road section;

[0115] is the ratio of the length of the mth road segment to the Internet traffic speed;

[0116] is the length of the mth road section;

[0117] is the Internet traffic speed of the mth road segment;

[0118] The device has only one road section for the interval, and the determined vehicle driving section is 15926.

[0119] Step 5: For the vehicle travel section associated with the specific intersection, the vehicle entry and exit time is corrected as follows:

[0120] When the electronic police detects that the lane traffic signal corresponding to the vehicle passing time is green, the time when the vehicle passes the stop line is corrected to the vehicle passing time plus 2 seconds; when the electronic police detects that the lane traffic signal corresponding to the vehicle passing time is red, the time when the vehicle passes the stop line is corrected to the red light end time plus 2 seconds:

[0121]

[0122] Among them, t i is the vehicle passing time of the i-th device;

[0123] F g The phase start time of the current cycle of the lane where the vehicle passes;

[0124] F z The phase end time of the current cycle of the lane where the vehicle passes;

[0125] F g+1 The phase start time of the next cycle of the lane where the vehicle passes;

[0126] When the device has only one road section, the time when the vehicle enters the road section is corrected to the detection time of the previous electronic police device plus 5 seconds; when the device has more than one road section, the time when the vehicle enters the road section is corrected to the corrected vehicle exit time minus the travel time based on the Internet traffic conditions conversion:

[0127]

[0128] Among them, t j is the vehicle passing time of the jth device;

[0129] m is the number of road sections in the equipment pair interval;

[0130] is the ratio of the length of the mth road segment to the Internet traffic speed;

[0131] The revised time for vehicle license plate Shanghai AXXX entering and exiting the road section is 2024-06-28 08:00:09 and 2024-06-28 08:03:13.

[0132] Step 6: Calculate the number of vehicle stops. When the corrected vehicle entry and exit times are all within one green light phase, the number of stops is 0. When the corrected vehicle entry and exit times are not within one green light phase, the number of stops is the number of complete red light durations included in the vehicle entry and exit time difference plus 1:

[0133]

[0134] Among them, F g The phase start time of the current cycle of the lane where the vehicle passes;

[0135] F z The phase end time of the current cycle of the lane where the vehicle passes;

[0136] F g+1 The phase start time of the next cycle of the lane where the vehicle passes;

[0137] a is the complete red light duration;

[0138] τ is the number of complete red light durations included in the time difference between vehicles entering and exiting the road section;

[0139] n is the number of vehicle stops;

[0140] After calculation, the car stopped 2 times.

[0141] Step 7: Calculate the number of stops at a specific intersection. The specific calculation method is the average number of stops of all vehicles at the intersection within 5 minutes:

[0142]

[0143] Among them, Q is the number of vehicles at the intersection within 5 minutes;

[0144] n is the number of stops for each vehicle;

[0145] The number of stops at the intersection;

[0146] According to calculation, the number of stops at the intersection is 2.1.

[0147] Step 8: If the number of stops at the intersection exceeds 2, the system will automatically sound an alarm and send it to the corresponding traffic police officer according to the jurisdiction of the intersection.

[0148] Step 9: The traffic police personnel go to the scene to handle the situation, and after the handling is completed, the handling information will be fed back to the system.

Claims

1. A method for managing and controlling the number of stops at an intersection, characterized in that: The following steps are involved: Step 1: Establish a road network topology structure and connect road sections and intersections; Step 2: Establish a mapping relationship between electronic police equipment and intersections; Step 3: Real-time access to electronic police equipment to collect data, Internet traffic data, and traffic signal control phase data; Step 4: for each vehicle collected by the electronic police device at a specific intersection, based on the vehicle license plate, search for the previous electronic police device that detected the same vehicle license plate, define the interval between two consecutive electronic police devices as the device pair interval, and inversely infer the vehicle driving section sequence of the device pair interval; Step 5: Correct the vehicle entry and exit time of the vehicle driving section associated with the specific intersection, as follows: When the electronic police detects that the traffic signal of the lane corresponding to the vehicle passing time is green, the time t when the vehicle passes the stop line is calculated. ′ out Corrected to the vehicle passing time plus K1 seconds; when the electronic police detects that the traffic signal of the lane corresponding to the vehicle passing time is red, the time t when the vehicle passes the stop line is ′ out Corrected to add K1 second to the red light end time; When the device has only one road section in the interval, the time t when the vehicle enters the road section is i ′ n Corrected to the detection time of the previous electronic police device plus K2 seconds; when the device has more than one road section in the interval, the time t when the vehicle enters the road section i ′ n The correction is the corrected vehicle exit segment time minus the travel time converted based on Internet traffic conditions; Step 6: Calculate the number of vehicle stops. When the corrected vehicle entry and exit times are all within one green light phase, the number of stops is 0. When the corrected vehicle entry and exit times are not within one green light phase, the number of stops is the number of complete red light durations included in the vehicle entry and exit time difference plus 1. Step 7: Calculate the number of stops at a specific intersection, specifically by using the average number of stops of all vehicles at the intersection over a period of time; Step 8: When the number of stops at an intersection exceeds the set threshold, the system automatically issues an alarm and sends it to the corresponding traffic police officer according to the jurisdiction of the intersection; Step 9: The traffic police personnel go to the scene to handle the situation, and after the handling is completed, the handling information will be fed back to the system.

2. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 1, the topological association relationship of the road network topological structure is: {section number, section length, upstream intersection number, downstream intersection number}.

3. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 2, the mapping relationship is expressed as: {electronic police equipment number, intersection number, collection lane number}.

4. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 3, the data collected by the electronic police equipment is in the format of {collected lane number, vehicle license plate, passing time}; the Internet traffic data format is in the format of {section number, section travel speed}; the traffic signal control phase data format is in the format of {intersection number, phase number, phase start time, phase end time}.

5. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 4, when the device has only one road section for the interval, it determines that the road section is a vehicle travel section; When there is more than one road segment in the device-to-device interval, traverse all connected road segment sets, and select the road segment set whose vehicle travel time in the device-to-device interval calculated based on the electronic police detection time is closest to the device-to-device interval travel time based on the Internet road condition conversion as the driving road segment sequence of the vehicle in the device-to-device interval, as follows: Target: constraint: in, The equipment is based on the electronic police detection time to calculate the vehicle travel time in the interval; The device-to-device travel time for the interval is converted based on Internet traffic conditions; S i,j is the set of all connected sections between the i-th device and the j-th device; t i is the vehicle passing time of the i-th device, t j is the vehicle passing time of the jth device; P k is the k-th road segment set, k = 1, 2, ..., n; r m is the mth road section; is the ratio of the length of the mth road segment to the Internet traffic speed; is the length of the mth road section; is the Internet traffic speed of the mth road segment.

6. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 5, the time t at which the vehicle passes the stop line ′ out The calculation is done using the following formula: Among them, t i is the vehicle passing time of the i-th device; F g The phase start time of the current cycle of the lane where the vehicle passes; F z The phase end time of the current cycle of the lane where the vehicle passes; F g+1 The phase start time of the next cycle of the lane where the vehicle passes; The time t when the vehicle enters the road section i ′ n The calculation is done using the following formula: Among them, t j is the vehicle passing time of the jth device; m is the number of road sections in the equipment pair interval; It is the ratio of the length of the mth road segment to the Internet traffic speed.

7. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 6, the number of stops n is calculated using the following formula: Among them, F g The phase start time of the current cycle of the lane where the vehicle passes; F z The phase end time of the current cycle of the lane where the vehicle passes; F g+1 The phase start time of the next cycle of the lane where the vehicle passes; a is the complete red light duration; τ is the number of complete red light durations contained in the time difference between vehicles entering and exiting the road section.

8. A method for managing and controlling the number of stops at an intersection as claimed in claim 1, characterized in that: In step 7, the average number of times all vehicles stop at the intersection within a period of time The calculation is done using the following formula: Among them, q is the number of vehicles at the intersection within a period of time; n is the number of stops for each vehicle.

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