CN116913109A - Smart city traffic signal lamp control system - Google Patents
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- G—PHYSICS
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- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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- G—PHYSICS
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
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Abstract
The invention discloses a smart city traffic light control system, which comprises a resource allocation scheduling center, a signal control unit, an area analysis unit, an intelligent diversion unit, a wireless transmission module and m traffic flow detection units, wherein m is equal to the number of intersections of controlled road sections; the m traffic flow detection units are arranged at m intersections of the controlled road section in a one-to-one correspondence manner; the resource allocation dispatching center is respectively connected with the intelligent shunting unit, the signal control unit, the area analysis unit and the wireless transmission module, the wireless transmission module is respectively connected with the m traffic flow detection units through a wireless communication network, and the area analysis unit is respectively connected with the intelligent shunting unit and the signal control unit; the traffic control method has the advantages that when the traffic lights of the controlled road sections at the plurality of intersections are controlled, the control effect is good, the congestion can be reduced, and the traffic efficiency is improved.
Description
Technical Field
The invention relates to a control system, in particular to a smart city traffic light control system.
Background
Along with the development of science and technology, the scale of cities is gradually increased, the concept of smart cities is also rising, and the smart cities refer to the application of intelligent computing technologies such as Internet of things, cloud computing, big data, space geographic information integration and the like in the fields of city planning, construction, management and operation, so that key infrastructure components and services formed by cities such as city management, education, medical treatment, real estate, transportation, public utilities and public safety are provided with higher intelligence, and the management and control of traffic lights by smart cities in the prior art are in a relatively lagging traditional signal light control stage;
The Chinese patent with the bulletin number of CN104835333B discloses a traffic intersection signal lamp self-adaptive control system, the control system comprises a plurality of cameras, a plurality of signal lamp controllers and a remote monitoring platform, the plurality of cameras are connected with the plurality of signal lamp controllers in a one-to-one correspondence manner, one corresponding camera and one signal lamp controller are used for shooting an intersection where the signal lamp controlled by the signal lamp controller is located under the control of the signal lamp controller by the camera, an intersection image is obtained and sent to the signal lamp controller, the signal lamp controller compresses and encodes the intersection image, UDP (user datagram) is carried out to output intersection image network data, the remote monitoring platform is connected with the plurality of signal lamp controllers through a 4G network to obtain intersection image network data output by each signal lamp controller, signal lamp control signals of each intersection are generated based on the plurality of intersection image network data, the signal lamp control signals are sent to each signal lamp controller through the 4G network, each signal lamp controller controls the signal lamp according to the signal lamp control signals received by the signal lamp controller, and the signal lamp self-adaptive control is realized.
The traffic intersection signal lamp self-adaptive control system can self-adaptively determine the duration of traffic lights of the signal lamps of the intersections according to the specific traffic conditions of the intersections of the controlled road sections. However, in actual use, in a scene where the controlled road segments have a plurality of intersections, due to different traffic congestion conditions of the intersections, the traffic congestion condition of the previous intersection may affect the traffic condition of the next intersection, that is, the intersections may affect each other and correlate with each other. If the traffic condition observed at one intersection is dynamic and non-stable, the congestion phenomenon of the next intersection can be easily caused by uneven coordination of the intersection and can not be solved. In the traffic intersection signal lamp self-adaptive control system, in the multi-intersection coordination process, each intersection only executes the optimal signal control strategy under the current observation state, the influence of the traffic state of other intersections on the intersection is not considered, and the lack of information association and interaction with other intersections finally results in poor overall signal control effect, serious congestion problem and low traffic efficiency of the whole system under the scene that the same road section has a plurality of intersections.
Disclosure of Invention
The invention aims to provide a smart city traffic light control system which has good control effect, can reduce congestion and improve traffic efficiency when controlling a plurality of intersection lights of a controlled road section.
The technical scheme adopted for solving the technical problems is as follows: a control system of intelligent urban traffic signal lamps comprises a resource allocation scheduling center, a signal control unit, an area analysis unit, an intelligent diversion unit, a wireless transmission module and m traffic flow detection units, wherein m is equal to the number of intersections of controlled road sections; the m traffic flow detection units are arranged at m intersections of the controlled road section in a one-to-one correspondence manner; the resource allocation scheduling center is respectively connected with the intelligent shunting unit, the signal control unit, the area analysis unit and the wireless transmission module, the wireless transmission module is respectively connected with the m traffic flow detection units through a wireless communication network, the area analysis unit is respectively connected with the intelligent shunting unit and the signal control unit, each traffic flow detection unit is respectively used for acquiring the number of vehicles passing through an intersection where the traffic flow detection unit is located and detecting the traffic accident situation of the intersection where the traffic flow detection unit is located in real time, and periodically transmitting the traffic flow acquired in each period and the detected traffic accident situation to the resource allocation scheduling center through the wireless transmission module, wherein the period is 1s, and the traffic accident situation is divided into traffic accidents and traffic accidents; after the resource allocation dispatching center receives the number of vehicles and the traffic accident situation of each intersection of a period controlled road section, the number of vehicles of each intersection of the period controlled road section is respectively sent to the intelligent shunting unit, the area analysis unit and the signal control unit, and the traffic accident situation of the period is transmitted to the signal control unit; the area analysis unit is used for analyzing the number of vehicles at each intersection of the controlled road section in each period received by the area analysis unit to obtain the road congestion condition of each intersection of the controlled road section in each period, and sending the obtained road congestion condition in each period to the intelligent diversion unit, wherein the road congestion condition comprises a trunk road congestion condition and a road congestion condition of a connection road section of a city branch road and a secondary trunk road; the intelligent diversion unit is used for combining the received number of vehicles at each intersection of each period controlled road section with road congestion, analyzing the vehicle diversion route of the congested road section, determining the vehicle diversion scheme of each period, and transmitting the vehicle diversion scheme of each period to the resource allocation scheduling center; after the resource allocation dispatching center receives a periodic vehicle diversion scheme, the periodic vehicle diversion scheme and the detected traffic accident situation are transmitted to the signal control unit, and after the signal control unit receives the periodic vehicle diversion scheme and the detected traffic accident situation, the dispatching strategy of the period is generated according to the received periodic vehicle diversion scheme and the traffic accident situation, and the red light duration and the green light duration of traffic lights of all intersections of the whole controlled road section are controlled and regulated in a linkage mode.
(1) The signal control unit comprises an accident signal optimizing module, a tide lane control module, a pedestrian signal lamp control module, a main signal lamp control module, a strategy generation module and a calculation power dispatching module, wherein the accident signal optimizing module, the tide lane control module, the pedestrian signal lamp control module and the main signal lamp control module are all connected with the strategy generation module, the strategy generation module is connected with the calculation power dispatching module, the accident signal optimizing module is used for receiving the traffic accident situation of each intersection, determining the traffic signal lamp passing rule of each intersection according to the traffic accident situation of each intersection, transmitting the traffic signal lamp passing rule of each intersection to the strategy generation module, the tide lane control module is used for receiving the number of vehicles and the vehicle diversion scheme of each intersection, determining the tide lane control regulation rule according to the number of vehicles and the vehicle diversion scheme of each intersection, transmitting the control regulation rule of the tide lane to the strategy generation module, the strategy generation module is used for transmitting the traffic signal lamp passing rule of each intersection and the control regulation rule of the tide speed to the calculation power dispatching module, calculating the traffic signal lamp passing rule of each intersection and the tide lane regulation rule of each intersection, the strategy generation module is used for generating a scheduling strategy according to the received traffic signal lamp passing rules of each intersection and the control regulation rules of the tide lanes, transmitting the generated vehicle scheduling strategy to the main signal lamp control module, and controlling the red lamp duration and the green lamp duration of the main signal lamp in a linkage mode according to the vehicle scheduling strategy; the strategy generation module transmits the generated vehicle dispatching strategy to the pedestrian signal lamp control module, and the pedestrian signal lamp control module is used for controlling and adjusting information coordination between the pedestrian signal lamp and the main signal lamp in a linkage mode according to the vehicle dispatching strategy. In the signal control unit, the accident signal optimization module can adjust signal timing according to real-time accident information, traffic can be managed more accurately, the tide lane control module can be used for traffic management in a peak period, congestion is reduced, the pedestrian signal lamp control module can be used for guaranteeing safety of pedestrians, the main signal lamp control module can adjust signal timing according to traffic flow and congestion degree, the system has stronger flexibility and adaptability, the system is beneficial to reducing traffic congestion, the traffic flow is improved, the strategy generation module and the algorithm scheduling module can effectively allocate computing resources, response time is accelerated, system efficiency is improved, and overall system performance is optimized.
The intelligent diversion unit comprises a manual alarm module, a navigation linkage module and an emergency regulation module, wherein the manual alarm module is connected with the navigation linkage module, the navigation linkage module is connected with the emergency regulation module, the manual alarm module is used for receiving the number of vehicles at each intersection of each period controlled road section and the road congestion condition, carrying out manual linkage alarm according to the number of vehicles at each intersection of the current controlled road section and the road congestion condition, transmitting the current road congestion condition to the navigation linkage module, the navigation linkage module is used for transmitting the road congestion condition received by the navigation linkage module through satellite signals to navigation software, transmitting the road congestion condition of each intersection of the current controlled road section to the emergency regulation module, and the emergency regulation module is used for analyzing the diversion route of the vehicle at each intersection of the current controlled road section according to the road congestion condition of the current controlled road section to determine a smooth vehicle diversion scheme output. In the intelligent diversion unit, the manual alarm module carries out linkage alarm according to the number of vehicles and road congestion conditions of the monitored road sections, the navigation linkage module sends the road congestion conditions received by the manual alarm module and the road congestion conditions of each intersection of the current controlled road sections to the emergency regulation module through satellite signals, so that the emergency regulation module is helped to respond more quickly, the traffic flow is regulated in real time, the traffic on the road is smoother, the road network traffic efficiency and the emergency response capability are improved, the intelligent diversion unit has modularized structure, each module has independent functions and can be maintained and updated respectively, the modularized design can reduce the fault risk of the whole system, the reliability of the system is improved, and meanwhile, the intelligent diversion unit can carry out intelligent scheduling according to the real-time traffic conditions, so that users can more conveniently and comfortably go out in the traveling process, and the experience of the users is improved.
Each traffic flow detection unit comprises a ground induction coil judgment module, an infrared thermal imaging analysis module, a radar traffic flow detection module and a visible light imaging analysis module, wherein the ground induction coil judgment module is connected with the infrared thermal imaging analysis module and the visible light imaging analysis module, the visible light imaging analysis module is connected with the radar traffic flow detection module, and the radar traffic flow detection module is connected with the infrared thermal imaging analysis module; the ground sensing coil judging module, the infrared thermal imaging analyzing module, the radar traffic flow detecting module and the visible light imaging analyzing module are all used for detecting traffic flow passing through an intersection where the ground sensing coil judging module is located in real time, the traffic flow detected by each period of the ground sensing coil judging module is called first traffic flow, the traffic flow detected by each period of the infrared thermal imaging analyzing module is called second traffic flow, the traffic flow detected by each period of the visible light imaging analyzing module is called third traffic flow, the traffic flow detected by each period of the radar traffic flow detecting module is called fourth traffic flow, the ground sensing coil judging module respectively sends the first traffic flow to the visible light imaging analyzing module and the infrared thermal imaging analyzing module, the visible light imaging analysis module compares the third traffic flow detected by the current period with the first traffic flow after receiving the first traffic flow, supplements the traffic data which exists in the third traffic flow but does not exist in the first traffic flow to obtain a fifth traffic flow, and sends the fifth traffic flow to the radar traffic flow detection module, the infrared thermal imaging analysis module compares the second traffic flow detected by the current period with the first traffic flow after receiving the first traffic flow, supplements the traffic data which exists in the second traffic flow but does not exist in the first traffic flow to obtain a sixth traffic flow, and sends the sixth traffic flow to the radar traffic flow detection module, the radar traffic flow detection module inputs a daytime period and a night period in advance, and after the radar traffic flow detection module receives the fifth traffic flow and the sixth traffic flow, if the radar traffic flow detection module compares the fourth traffic flow with the fifth traffic flow detected by the radar traffic flow detection module, the vehicle data which exists in the fourth traffic flow and does not exist in the fifth traffic flow is supplemented to the fifth traffic flow, the obtained vehicle data is sent to the resource allocation scheduling center through the wireless transmission module, and if the radar traffic flow detection module compares the fourth traffic flow detected by the radar traffic flow detection module with the sixth traffic flow during the night period, the vehicle data which exists in the fourth traffic flow and does not exist in the sixth traffic flow is supplemented to the sixth traffic flow, and the obtained vehicle data is sent to the resource allocation scheduling center through the wireless transmission module. In the module, the ground induction coil judging module, the radar traffic flow detecting module and the visible light imaging analyzing module are combined in daytime to detect the number of vehicles at the intersection, and the ground induction coil judging module, the radar traffic flow detecting module and the infrared thermal imaging analyzing module are combined at night to detect the number of vehicles at the intersection, so that the number of vehicles at each intersection can be accurately detected in daytime or at night, and a high-accuracy data basis is provided for subsequent analysis.
The system comprises a road condition analysis unit, a road condition analysis unit and a road condition analysis unit, wherein the road condition analysis unit comprises an area information updating module, a road condition analysis module, a main road condition analysis module, a special area analysis module and a congestion road section uploading module, the area information updating module is respectively connected with the road condition analysis module, the main road condition analysis module, the special area analysis module and the congestion road section uploading module, the congestion road section uploading module is used for receiving the number of vehicles at each intersection, analyzing the number of vehicles received to obtain road congestion condition, transmitting the road congestion condition to the area information updating module, the area information updating module is used for updating the position information of a controlled road section congestion point according to the received road congestion condition, transmitting the updated position information of the controlled road section congestion point to the road condition analysis module, the main road condition analysis module and the special area analysis module respectively, the road condition analysis module is used for analyzing the position information of the controlled road section according to the received road congestion point, and the road condition of the main road section is used for analyzing the controlled road condition of the controlled road section, and the road condition of the controlled road section is output by the road condition analysis module. In the area analysis unit, the area analysis process is divided into a plurality of subdivision modules, each module has clear functions and tasks, the subdivision can improve maintainability and expandability of the whole system, meanwhile, the structure covers various aspects of urban area and main road condition analysis, special area analysis, congestion road section uploading and the like, comprehensive road congestion information and traffic conditions can be provided, users can know road conditions in time and make decisions, in addition, each module in the structure can upload the congestion conditions to a log recording module in time, so that other users can avoid the congestion road sections in time, and the instantaneity can greatly improve usability and user experience of the whole system.
The intelligent urban traffic signal lamp control system also comprises a log recording module, wherein the log recording module is respectively connected with the area analysis unit, the intelligent shunting unit and the signal control unit; the log record module is used for receiving and storing the road congestion condition of each period output by the area analysis unit, the vehicle shunting scheme of each period output by the intelligent shunting unit, and the vehicle shunting scheme and the scheduling strategy of each period output by the signal control unit, so that the follow-up calling control is facilitated.
Compared with the prior art, the intelligent city traffic signal lamp control system has the advantages that a intelligent city traffic signal lamp control system is formed by a resource allocation scheduling center, a signal control unit, an area analysis unit, an intelligent diversion unit, a wireless transmission module and m traffic flow detection units, wherein m is equal to the number of intersections of controlled road sections; the m traffic flow detection units are arranged at m intersections of the controlled road section in a one-to-one correspondence manner; the resource allocation dispatching center is respectively connected with the intelligent shunting unit, the signal control unit, the area analysis unit and the wireless transmission module, the wireless transmission module is respectively connected with the m traffic flow detection units through a wireless communication network, the area analysis unit is respectively connected with the intelligent shunting unit and the signal control unit, each traffic flow detection unit is respectively used for acquiring the number of vehicles passing through an intersection where the traffic flow detection unit is located and detecting the traffic accident situation of the intersection where the traffic flow detection unit is located in real time, and periodically transmitting the traffic flow acquired in each period and the detected traffic accident situation to the resource allocation dispatching center through the wireless transmission module, wherein the period size is 1s, and the traffic accident situation is divided into traffic accidents and traffic accidents; after the resource allocation dispatching center receives the number of vehicles and the traffic accident situation of each intersection of a period controlled road section, the number of vehicles of each intersection of the period controlled road section is respectively sent to the intelligent shunting unit, the area analysis unit and the signal control unit, and the traffic accident situation of the period is transmitted to the signal control unit; the area analysis unit is used for analyzing the number of vehicles at each intersection of the controlled road section in each period, obtaining the road congestion condition of each intersection of the controlled road section in each period, and sending the obtained road congestion condition in each period to the intelligent diversion unit, wherein the road congestion condition comprises a trunk road congestion condition and a road congestion condition of a connection road section of a city branch road and a secondary trunk road; the intelligent diversion unit is used for combining the received number of vehicles at each intersection of the controlled road section in each period with road congestion, analyzing the vehicle diversion route of the congested road section, determining the vehicle diversion scheme in each period, and transmitting the vehicle diversion scheme in each period to the resource allocation scheduling center; after a resource allocation dispatching center receives a periodic vehicle diversion scheme and a detected traffic accident situation, the periodic vehicle diversion scheme and the detected traffic accident situation are transmitted to a signal control unit, and after the signal control unit receives the periodic vehicle diversion scheme and the detected traffic accident situation, a dispatching strategy of the period is generated according to the received periodic vehicle diversion scheme and the traffic accident situation to carry out linkage control adjustment on the red light duration and the green light duration of traffic lights of all intersections of a controlled road section.
Drawings
FIG. 1 is a schematic diagram of a smart city traffic light control system of the present invention;
FIG. 2 is a schematic diagram of the signal control unit of the intelligent city traffic signal lamp control system of the present invention;
FIG. 3 is a schematic diagram of the intelligent diversion unit of the intelligent urban traffic signal lamp control system of the present invention;
FIG. 4 is a schematic diagram of the structure of a traffic flow detection unit of the intelligent city traffic signal lamp control system of the present invention;
fig. 5 is a schematic structural diagram of a regional analysis unit of the intelligent city traffic light control system of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Embodiment one: as shown in fig. 1, a smart city traffic light control system includes a resource allocation scheduling center 1, a signal control unit 2, an area analysis unit 3, an intelligent diversion unit 4, a log recording module 5, a wireless transmission module 6, and m traffic flow detection units 7, m being equal to the number of intersections of controlled road sections; the m traffic flow detection units 7 are arranged at m intersections of the controlled road section in a one-to-one correspondence manner; the resource allocation dispatching center 1 is respectively connected with the intelligent shunting unit 4, the signal control unit 2, the area analysis unit 3 and the wireless transmission module 6, the wireless transmission module 6 is respectively connected with the m traffic flow detection units 7 through a wireless communication network, the area analysis unit 3 is respectively connected with the intelligent shunting unit 4 and the signal control unit 2, and the log recording module 5 is respectively connected with the area analysis unit 3, the intelligent shunting unit 4 and the signal control unit 2; each traffic flow detection unit 7 is respectively used for collecting the number of vehicles passing through an intersection where the traffic flow detection unit is located and detecting the traffic accident situation of the intersection where the traffic flow detection unit is located in real time, and periodically transmitting the traffic flow collected in each period and the detected traffic accident situation to the resource allocation scheduling center 1 through the wireless transmission module 6, wherein the period size is 1s, and the traffic accident situation is divided into traffic accidents and no traffic accidents; after the resource allocation dispatching center 1 receives the number of vehicles and the traffic accident situation of each intersection of a period controlled road section, the number of vehicles of each intersection of the period controlled road section is respectively sent to the intelligent shunting unit 4, the area analysis unit 3 and the signal control unit 2, and the traffic accident situation of the period is transmitted to the signal control unit 2; the area analysis unit 3 is configured to analyze the number of vehicles at each intersection of the controlled road segment in each period, obtain a road congestion condition of each intersection of the controlled road segment in each period, and send the obtained road congestion condition in each period to the intelligent diversion unit 4 and the log recording module 5, where the road congestion condition includes a trunk road congestion condition and a road congestion condition of a connection road segment between a city branch road and a secondary trunk road; the intelligent diversion unit 4 is used for combining the received number of vehicles at each intersection of each period controlled road section with road congestion, analyzing the diversion route of the vehicle at the congested road section, determining the diversion scheme of the vehicle at each period, and transmitting the diversion scheme of the vehicle at each period to the resource allocation scheduling center 1 and the log recording module 5; the log recording module 5 is used for storing the received road congestion condition and the vehicle diversion scheme of each period, so that the subsequent calling control is convenient; after the resource allocation dispatching center 1 receives a vehicle diversion scheme of one period, the vehicle diversion scheme of the period and the detected traffic accident situation are transmitted to the signal control unit 2, and after the signal control unit 2 receives the vehicle diversion scheme of the period and the detected traffic accident situation, the dispatching strategy of the period is generated according to the received vehicle diversion scheme of the period and the traffic accident situation, the red light duration and the green light duration of traffic lights of all intersections of the whole controlled road section are controlled and regulated in a linkage way, and the vehicle diversion scheme of the period and the dispatching strategy are transmitted to the log recording module 5 for storage, so that the follow-up calling control is facilitated.
Embodiment two: the present embodiment is basically the same as the first embodiment, except that, in the present embodiment, as shown in fig. 2, the signal control unit 2 includes an accident signal optimizing module 201, a tidal lane control module 202, a pedestrian traffic light control module 203, a main traffic light control module 204, a policy generating module 205, and a traffic light scheduling module 206, where the accident signal optimizing module 201, the tidal lane control module 202, the pedestrian traffic light control module 203, and the main traffic light control module 204 are all connected with the policy generating module 205, the policy generating module 205 is connected with the traffic light scheduling module 206, the accident signal optimizing module 201 is configured to receive traffic accident situations of intersections, determine traffic light traffic rules of the intersections according to the traffic accident situations of the intersections, and transmit the traffic light traffic rules of the intersections to the policy generating module 205, the tide lane control module 202 is configured to receive the number of vehicles and the vehicle diversion scheme of each intersection, determine a tide lane control adjustment rule according to the number of vehicles and the vehicle diversion scheme of each intersection, and transmit the control adjustment rule of the tide lane to the policy generation module 205, the policy generation module 205 further transmits the traffic signal lamp traffic rule of each intersection and the control adjustment rule of the tide speed to the calculation power dispatching module 206, the calculation power dispatching module 206 is configured to calculate the received traffic signal lamp traffic rule of each intersection and the control adjustment rule of the tide lane by calling the calculation power, calculate the traffic signal lamp traffic rule of each intersection and the control adjustment rule of the tide lane, and then transmit the calculated traffic signal lamp traffic rule of each intersection and the control adjustment rule of the tide lane to the policy generation module 205, the strategy generation module 205 is pre-stored with a neural network model, the strategy generation module 205 adopts the pre-stored neural network model to generate a scheduling strategy according to the received traffic signal lamp passing rules of each intersection and the control regulation rules of the tide lanes, the strategy generation module 205 transmits the generated vehicle scheduling strategy to the main signal lamp control module 204, and the main signal lamp control module 204 is used for controlling the red light duration and the green light duration of the main signal lamp in a linkage mode according to the vehicle scheduling strategy; the policy generation module 205 transmits the generated vehicle dispatching policy to the pedestrian signal lamp control module 203, and the pedestrian signal lamp control module 203 is used for controlling and adjusting information coordination between the pedestrian signal lamp and the main signal lamp in a linkage mode according to the vehicle dispatching policy.
In this embodiment, the accident signal optimizing module 201, the tidal lane control module 202, the pedestrian signal control module 203, the main signal control module 204, the strategy generating module 205 and the power calculating and dispatching module 206 respectively adopt mature products in the technical field.
Embodiment III: the difference between this embodiment and the second embodiment is that, as shown in fig. 3, the intelligent diversion unit 4 includes a manual alarm module 401, a navigation linkage module 402 and an emergency regulation module 403, where the manual alarm module 401 is connected with the navigation linkage module 402, the navigation linkage module 402 is connected with the emergency regulation module 403, the manual alarm module 401 is configured to receive the number of vehicles at each intersection of each period controlled road section and the road congestion status, perform manual linkage alarm according to the number of vehicles at each intersection of the current controlled road section and the road congestion status, and transmit the current road congestion status to the navigation linkage module 402, and the navigation linkage module 402 is configured to send the road congestion status received by the navigation software through satellite signals to the emergency regulation module 403, and the emergency regulation module 403 analyzes the diversion route of the road congestion at each intersection of the current controlled road section according to the road congestion status, determines a clear vehicle diversion scheme and outputs the clear vehicle diversion scheme to the resource allocation scheduling center 1 and the log recording module 5.
In this embodiment, the manual alarm module 401, the navigation linkage module 402 and the emergency control module 403 respectively adopt mature products in the technical field.
Embodiment four: the difference is that, in this embodiment, as shown in fig. 4, each traffic flow detection unit 7 includes a ground sensing coil judgment module 701, an infrared thermal imaging analysis module 702, a radar traffic flow detection module 703, and a visible light imaging analysis module 704, where the ground sensing coil judgment module 701 is connected to the infrared thermal imaging analysis module 702 and the visible light imaging analysis module 704, the visible light imaging analysis module 704 is connected to the radar traffic flow detection module 703, and the radar traffic flow detection module 703 is connected to the infrared thermal imaging analysis module 702; the ground sensing coil judging module 701, the infrared thermal imaging analyzing module 702, the radar traffic flow detecting module 703 and the visible light imaging analyzing module 704 are all used for detecting traffic flow passing through an intersection where the ground sensing coil judging module 701 is located in real time, the traffic flow detected by each period of the ground sensing coil judging module 701 is called first traffic flow, the traffic flow detected by each period of the infrared thermal imaging analyzing module 702 is called second traffic flow, the traffic flow detected by each period of the visible light imaging analyzing module 704 is called third traffic flow, the traffic flow detected by each period of the radar traffic flow detecting module 703 is called fourth traffic flow, each period of the ground sensing coil judging module 701 respectively sends the first traffic flow to the visible light imaging analyzing module 704 and the infrared thermal imaging analyzing module 702, the visible light imaging analyzing module 704 receives the first traffic flow, comparing the third traffic flow detected by the current period with the first traffic flow, supplementing the traffic data existing in the third traffic flow and not existing in the first traffic flow to obtain a fifth traffic flow, sending the fifth traffic flow to the radar traffic flow detection module 703, comparing the second traffic flow detected by the infrared thermal imaging analysis module 702 in the current period with the first traffic flow after receiving the first traffic flow, supplementing the traffic data existing in the second traffic flow and not existing in the first traffic flow to obtain a sixth traffic flow, sending the sixth traffic flow to the radar traffic flow detection module 703, pre-inputting the radar traffic flow detection module 703 with a daytime period and a night period, when the radar traffic flow detection module 703 receives the fifth traffic flow and the sixth traffic flow, if the radar traffic flow detection module 703 compares the fourth traffic flow and the fifth traffic flow detected by the radar traffic detection module 703 during the daytime period, the vehicle data which exists in the fourth vehicle flow and does not exist in the fifth vehicle flow is supplemented to the fifth vehicle flow, the obtained vehicle data is sent to the resource allocation dispatching center 1 through the wireless transmission module 6, and if the radar vehicle flow detection module 703 compares the fourth vehicle flow detected by the radar vehicle flow detection module with the sixth vehicle flow in the night period, the vehicle data which exists in the fourth vehicle flow and does not exist in the sixth vehicle flow is supplemented to the sixth vehicle flow, and the obtained vehicle data is sent to the resource allocation dispatching center 1 through the wireless transmission module 6.
In this embodiment, the ground induction coil judging module 701, the infrared thermal imaging analysis module 702, the radar traffic flow detecting module 703 and the visible light imaging analysis module 704 respectively adopt mature products in the technical field.
In the present embodiment, the daytime period and the nighttime period are set according to the actual use environment.
Fifth embodiment: the difference between this embodiment and the fourth embodiment is that, as shown in fig. 5, the area analysis unit 3 includes an area information updating module 301, an urban road condition analysis module 302, a main road condition analysis module 303, a special area analysis module 304, and a congestion road section uploading module 305, where the area information updating module 301 is connected to the urban road condition analysis module 302, the main road condition analysis module 303, the special area analysis module 304, and the congestion road section uploading module 305, the congestion road section uploading module 305 is configured to receive the number of vehicles at each intersection, analyze the number of vehicles received to obtain a road congestion condition, transmit the road congestion condition to the area information updating module 301, the area information updating module 301 is configured to update the location information of the controlled road section congestion point according to the received road congestion condition, and transmit the location information of the updated controlled road section congestion point to the main road condition analysis module 302, the main road condition analysis module 303, and the special area analysis module 304, respectively, the urban road condition analysis module 302 is configured to obtain the main road congestion point existing in the received location information analysis area, and the urban road condition output controlled road section location information by the urban road section receiving the controlled road section location information analysis module, and the controlled road congestion point analysis module is configured to obtain the controlled road condition information.
In this embodiment, the regional information updating module 301, the urban road condition analysis module 302, the arterial road condition analysis module 303, the special region analysis module 304 and the congestion section uploading module 305 respectively adopt mature products in the technical field.
Claims (6)
1. The intelligent urban traffic signal lamp control system is characterized by comprising a resource allocation scheduling center, a signal control unit, an area analysis unit, an intelligent diversion unit, a wireless transmission module and m traffic flow detection units, wherein m is equal to the number of intersections of controlled road sections; the m traffic flow detection units are arranged at m intersections of the controlled road section in a one-to-one correspondence manner; the resource allocation scheduling center is respectively connected with the intelligent shunting unit, the signal control unit, the area analysis unit and the wireless transmission module, the wireless transmission module is respectively connected with the m traffic flow detection units through a wireless communication network, the area analysis unit is respectively connected with the intelligent shunting unit and the signal control unit, each traffic flow detection unit is respectively used for acquiring the number of vehicles passing through an intersection where the traffic flow detection unit is located and detecting the traffic accident situation of the intersection where the traffic flow detection unit is located in real time, and periodically transmitting the traffic flow acquired in each period and the detected traffic accident situation to the resource allocation scheduling center through the wireless transmission module, wherein the period is 1s, and the traffic accident situation is divided into traffic accidents and traffic accidents; after the resource allocation dispatching center receives the number of vehicles and the traffic accident situation of each intersection of a period controlled road section, the number of vehicles of each intersection of the period controlled road section is respectively sent to the intelligent shunting unit, the area analysis unit and the signal control unit, and the traffic accident situation of the period is transmitted to the signal control unit; the area analysis unit is used for analyzing the number of vehicles at each intersection of the controlled road section in each period received by the area analysis unit to obtain the road congestion condition of each intersection of the controlled road section in each period, and sending the obtained road congestion condition in each period to the intelligent diversion unit, wherein the road congestion condition comprises a trunk road congestion condition and a road congestion condition of a connection road section of a city branch road and a secondary trunk road; the intelligent diversion unit is used for combining the received number of vehicles at each intersection of each period controlled road section with road congestion, analyzing the vehicle diversion route of the congested road section, determining the vehicle diversion scheme of each period, and transmitting the vehicle diversion scheme of each period to the resource allocation scheduling center; after the resource allocation dispatching center receives a periodic vehicle diversion scheme, the periodic vehicle diversion scheme and the detected traffic accident situation are transmitted to the signal control unit, and after the signal control unit receives the periodic vehicle diversion scheme and the detected traffic accident situation, the dispatching strategy of the period is generated according to the received periodic vehicle diversion scheme and the traffic accident situation, and the red light duration and the green light duration of traffic lights of all intersections of the whole controlled road section are controlled and regulated in a linkage mode.
2. The smart city traffic light control system of claim 1, wherein the signal control unit comprises an accident signal optimizing module, a traffic lane control module, a pedestrian signal control module, a main signal control module, a policy generation module and a traffic control module, wherein the accident signal optimizing module, the traffic lane control module, the pedestrian signal control module and the main signal control module are all connected with the policy generation module, the policy generation module is connected with the traffic control module, the accident signal optimizing module is used for receiving traffic accident situations of intersections, determining traffic signal traffic rules of the intersections according to the traffic accident situations of the intersections, transmitting the traffic signal traffic rules of the intersections to the policy generation module, the traffic control module is used for receiving the number of vehicles and the vehicle diversion scheme of the intersections, determining the traffic control regulation rules of the traffic lanes according to the number of vehicles and the vehicle diversion scheme of the intersections, transmitting the traffic regulation rules of the traffic lanes to the policy generation module, the traffic regulation rules of the traffic signal traffic signals are calculated, the traffic regulation rules of the traffic signal traffic regulation module is calculated according to the traffic regulation rules of the traffic signal traffic regulation rules of the intersections, and the traffic regulation rules of the traffic signal traffic regulation of the intersections are calculated, transmitting the calculated traffic signal lamp passing rules of all the intersections and the control regulation rules of the tide lanes to the strategy generation module, wherein a neural network model is prestored in the strategy generation module, the strategy generation module adopts the prestored neural network model to generate a scheduling strategy according to the received traffic signal lamp passing rules of all the intersections and the control regulation rules of the tide lanes, the strategy generation module transmits the generated vehicle scheduling strategy to the main signal lamp control module, and the main signal lamp control module is used for controlling the red lamp duration and the green lamp duration of the main signal lamp in a linkage mode according to the vehicle scheduling strategy; the strategy generation module transmits the generated vehicle dispatching strategy to the pedestrian signal lamp control module, and the pedestrian signal lamp control module is used for controlling and adjusting information coordination between the pedestrian signal lamp and the main signal lamp in a linkage mode according to the vehicle dispatching strategy.
3. The intelligent traffic signal lamp control system according to claim 1, wherein the intelligent diversion unit comprises a manual alarm module, a navigation linkage module and an emergency regulation module, the manual alarm module is connected with the navigation linkage module, the navigation linkage module is connected with the emergency regulation module, the manual alarm module is used for receiving the number of vehicles at each intersection of each period controlled road section and road congestion status, carrying out manual linkage alarm according to the number of vehicles at each intersection of the current controlled road section and road congestion status, transmitting the current road congestion status to the navigation linkage module, the navigation linkage module is used for transmitting the road congestion status received by the navigation software through satellite signals, transmitting the road congestion status of each intersection of the current controlled road section to the emergency regulation module, and the emergency regulation module is used for analyzing the diversion route of the vehicle at each intersection of the congestion road section according to the road congestion status of the current controlled road section, and determining the clear diversion scheme of the vehicle.
4. The intelligent urban traffic light control system according to claim 1, wherein each of said traffic flow detection units comprises a ground sensing coil judgment module, an infrared thermal imaging analysis module, a radar traffic flow detection module and a visible light imaging analysis module, said ground sensing coil judgment module is connected with said infrared thermal imaging analysis module and said visible light imaging analysis module, said visible light imaging analysis module is connected with said radar traffic flow detection module, said radar traffic flow detection module is connected with said infrared thermal imaging analysis module; the ground sensing coil judging module, the infrared thermal imaging analyzing module, the radar traffic flow detecting module and the visible light imaging analyzing module are all used for detecting traffic flow passing through an intersection where the ground sensing coil judging module is located in real time, the traffic flow detected by each period of the ground sensing coil judging module is called first traffic flow, the traffic flow detected by each period of the infrared thermal imaging analyzing module is called second traffic flow, the traffic flow detected by each period of the visible light imaging analyzing module is called third traffic flow, the traffic flow detected by each period of the radar traffic flow detecting module is called fourth traffic flow, the ground sensing coil judging module respectively sends the first traffic flow to the visible light imaging analyzing module and the infrared thermal imaging analyzing module, the visible light imaging analysis module compares the third traffic flow detected by the current period with the first traffic flow after receiving the first traffic flow, supplements the traffic data which exists in the third traffic flow but does not exist in the first traffic flow to obtain a fifth traffic flow, and sends the fifth traffic flow to the radar traffic flow detection module, the infrared thermal imaging analysis module compares the second traffic flow detected by the current period with the first traffic flow after receiving the first traffic flow, supplements the traffic data which exists in the second traffic flow but does not exist in the first traffic flow to obtain a sixth traffic flow, and sends the sixth traffic flow to the radar traffic flow detection module, the radar traffic flow detection module inputs a daytime period and a night period in advance, and after the radar traffic flow detection module receives the fifth traffic flow and the sixth traffic flow, if the radar traffic flow detection module compares the fourth traffic flow with the fifth traffic flow detected by the radar traffic flow detection module, the vehicle data which exists in the fourth traffic flow and does not exist in the fifth traffic flow is supplemented to the fifth traffic flow, the obtained vehicle data is sent to the resource allocation scheduling center through the wireless transmission module, and if the radar traffic flow detection module compares the fourth traffic flow detected by the radar traffic flow detection module with the sixth traffic flow during the night period, the vehicle data which exists in the fourth traffic flow and does not exist in the sixth traffic flow is supplemented to the sixth traffic flow, and the obtained vehicle data is sent to the resource allocation scheduling center through the wireless transmission module.
5. The intelligent urban traffic signal lamp control system according to claim 1, wherein the area analysis unit comprises an area information updating module, a city road condition analysis module, a main road condition analysis module, a special area analysis module and a congestion road section uploading module, the area information updating module is respectively connected with the city road condition analysis module, the main road condition analysis module, the special area analysis module and the congestion road section uploading module, the congestion road section uploading module is used for receiving the number of vehicles at each intersection, analyzing the number of vehicles received according to the number of vehicles received to obtain the road congestion condition, transmitting the road congestion condition to the area information updating module, the area information updating module is used for updating the position information of the congestion point of the controlled road section according to the received road congestion condition, transmitting the updated position information of the controlled road section to the city road section analysis module, the main road condition analysis module and the special area analysis module respectively, the area information updating module is used for receiving the position information of the controlled road section in the main road section, analyzing the position of the controlled road section according to obtain the position of the controlled road section, and the controlled road section is used for analyzing the position of the controlled road section in the controlled road section, and the controlled road section is obtained.
6. The intelligent urban traffic light control system according to claim 1, further comprising a log recording module, wherein the log recording module is respectively connected with the area analysis unit, the intelligent diversion unit and the signal control unit; the log record module is used for receiving and storing the road congestion condition of each period output by the area analysis unit, the vehicle shunting scheme of each period output by the intelligent shunting unit, and the vehicle shunting scheme and the scheduling strategy of each period output by the signal control unit, so that the follow-up calling control is facilitated.
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| CN117218870B (en) * | 2023-11-09 | 2024-01-16 | 天津易华录信息技术有限公司 | Smart city traffic signal management system |
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