CN120183211A - A remote control device and system for traffic luminous signs based on Beidou positioning - Google Patents
A remote control device and system for traffic luminous signs based on Beidou positioning Download PDFInfo
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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Abstract
本发明公开了一种基于北斗定位的交通发光标志远程调控装置及系统，涉及交通信号控制技术领域，所述交通发光标志远程调控系统包括北斗定位模块、信号增强处理模块、标志分类模块、多级调度策略模块、资源分配管理模块以及远程调控执行模块。本发明通过北斗卫星精确定位交通发光标志，并结合实时交通流量数据，实现了对交通标志的远程实时调控，极大地提高了交通管理的效率，能够快速响应交通状况变化，及时调整标志的显示内容和亮度，为驾驶员提供更及时、准确的路况信息，并且能够根据实时路况信息，及时更换或更新警示、指示标志，大大提高了驾驶员的警觉性，减少了因信息滞后或缺失导致的交通事故风险。
The present invention discloses a remote control device and system for traffic luminous signs based on Beidou positioning, which relates to the technical field of traffic signal control. The remote control system for traffic luminous signs includes a Beidou positioning module, a signal enhancement processing module, a sign classification module, a multi-level scheduling strategy module, a resource allocation management module, and a remote control execution module. The present invention accurately locates traffic luminous signs through Beidou satellites, and combines real-time traffic flow data to achieve remote real-time control of traffic signs, greatly improving the efficiency of traffic management, being able to quickly respond to changes in traffic conditions, and timely adjust the display content and brightness of signs, providing drivers with more timely and accurate road condition information, and being able to timely replace or update warning and indication signs according to real-time road condition information, greatly improving the driver's alertness, and reducing the risk of traffic accidents caused by delayed or missing information.
Description
Technical Field
The invention relates to the technical field of traffic signal control, in particular to a traffic luminous sign remote regulation and control device and system based on Beidou positioning.
Background
The Beidou satellite navigation system is a global satellite navigation system independently researched and developed in China, has been remarkably developed and achieved since the research and development is started in 2000, is composed of a plurality of geostationary orbit satellites, inclined geostationary orbit satellites and central geostationary orbit satellites, has the characteristics of wide coverage range, high positioning precision, accurate time service and the like, is an important component of traffic infrastructure, is used for providing road information, indication directions, warning dangers and the like for drivers, has important significance for guaranteeing road traffic safety and smoothness, and is continuously expanded in application fields along with the continuous perfection and popularization of the Beidou satellite navigation system, so that a solid technical basis is provided for remote regulation of traffic luminous signs.
In the prior art, the traffic light-emitting sign remote regulation and control has higher requirement on real-time performance, and the calculation load can be increased along with the increase of the number of signs, so that the positioning response delay can be caused, meanwhile, in the urban environment, the building can block or reflect Beidou satellite signals, so that signal attenuation and multipath effect are caused, the precision of Beidou positioning is further influenced, and the condition of response delay is aggravated.
Disclosure of Invention
The invention aims to provide a traffic light-emitting sign remote regulation and control device and system based on Beidou positioning, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention adopts the following technical scheme:
In a first aspect, a traffic light-emitting sign remote regulation and control device based on Beidou positioning comprises a traffic signal controller, wherein a signal controller is fixedly installed in the traffic signal controller, and a traffic light-emitting sign remote regulation and control system is integrated in the signal controller.
The traffic light-emitting sign remote regulation and control system based on Beidou positioning is realized based on the traffic light-emitting sign remote regulation and control device based on Beidou positioning, and comprises a Beidou positioning module, a signal enhancement processing module, a sign classification module, a multi-level scheduling strategy module, a resource allocation management module and a remote regulation and control execution module, wherein the modules are electrically connected;
The Beidou positioning module is used for receiving and processing Beidou satellite signals, determining the position of the traffic luminous sign, and ensuring that the sign is accurately calibrated in a map and a system through accurate positioning;
The signal enhancement processing module is used for enhancing and processing the received Beidou signal;
The sign classification module is used for monitoring traffic flow, analyzing the importance of the traffic luminous signs by combining the positions of the traffic luminous signs and the influence of the traffic luminous signs on the traffic smoothness, and dividing the importance of the traffic luminous signs into different importance levels so as to allocate regulation and control priorities;
the multi-level scheduling strategy module is used for implementing a multi-level scheduling strategy according to traffic flow and sign importance, optimizing system resource allocation and reducing positioning response delay;
The resource allocation management module is used for dynamically allocating and managing system resources according to a multi-level scheduling strategy and a regulation priority, so that the system can still keep stable operation under high load;
the remote regulation and control execution module is used for remotely regulating and controlling the display content and brightness of the traffic light-emitting sign according to the scheduling strategy and the resource allocation result, and realizing the real-time updating and regulation and control of the traffic sign.
The technical scheme of the invention is further improved in that the sign classifying module comprises a traffic flow monitoring unit and an importance evaluating unit;
The traffic flow monitoring unit is used for monitoring traffic flow in real time, analyzing traffic jam and traffic flow density information, distinguishing a high flow area from a low flow area and providing real-time traffic data support for a scheduling strategy;
the importance evaluation unit is used for determining the influence of the traffic luminous sign on the traffic fluency according to a preset standard, evaluating the importance of the traffic luminous sign by combining the position of the traffic luminous sign and determining the importance level of the traffic luminous sign.
The technical scheme of the invention is further improved in that the Beidou positioning module specifically comprises:
The Beidou positioning module captures signals of a plurality of Beidou satellites through a built-in high-sensitivity receiving antenna and calculates propagation time of the signals, wherein the signals of the Beidou satellites comprise orbit information and time mark information of the satellites;
after receiving, the Beidou positioning module decodes the signals by utilizing a built-in decoding unit, and extracts satellite navigation data comprising the position and clock error of satellites;
Further processing the decoded satellite navigation data, calculating the position of the traffic luminous sign relative to the satellite by calculating the propagation time difference between a plurality of satellite signals and a receiver and combining the known position of the satellite and utilizing the triangulation principle, and outputting the position in the form of longitude and latitude coordinates;
After the positioning calculation is completed, the Beidou positioning module compares and calibrates the output longitude and latitude data with the actual position of the traffic luminous sign, and further uploads the position data to a map of a traffic management system in real time, so that the sign can reflect the true and accurate position of the sign in the system.
The technical scheme of the invention is further improved in that the signal enhancement processing module specifically comprises:
the signal enhancement processing module is used for preprocessing the received signals of the Beidou satellite and comprises denoising and filtering operations, and effective satellite signal components are reserved by filtering high-frequency noise and interference signals;
The multipath effect suppression technology is adopted to analyze and process multipath components in the signals, the direct signals and the reflected signals are distinguished by the signal processing technology (spectrum analysis) through analysis of the arrival time and paths of the signals, the multipath interference generated by signal reflection and refraction is eliminated by the signal processing technology of adaptive filtering, the negative influence of the multipath effect on the positioning accuracy is reduced, and the positioning accuracy in a complex environment is remarkably improved;
the signal after filtering and multipath inhibition is enhanced by optimizing signal parameters and enhancing signal strength, so that the quality of the signal is further improved, and positioning errors caused by signal problems are reduced.
The technical scheme of the invention is further improved in that the traffic flow monitoring unit specifically comprises:
the traffic flow data is collected in real time through a sensor, a camera, a geomagnetic sensor and a radar which are arranged on a road in advance, and vehicle speed, quantity and traffic flow density information are analyzed;
dynamically analyzing the speed, the number and the traffic density of vehicles, calculating the interval time and the speed distribution of the vehicles, analyzing the traffic state of each monitored road section, and identifying the relative change trend of the traffic flow by using a pattern recognition technology, wherein the interval time of the vehicles, namely the time difference of adjacent vehicles passing through the same detection point;
Analyzing historical data of the monitored road section in three months, counting traffic flow characteristics of different time periods (workdays, weekends and holidays), setting a flow threshold to distinguish high flow areas and low flow areas, dividing a road into different flow areas according to traffic state analysis results of the monitored road section, and respectively calculating traffic flow characteristic indexes of each area to determine the type of the flow area to which the area belongs, wherein in the high flow area, the vehicle speed is reduced, the vehicle flow density is increased, and in the low flow area, the vehicle speed is faster and the vehicle is sparse.
The technical scheme of the invention is further improved in that the importance evaluation unit specifically comprises:
Collecting detailed information of traffic light-emitting marks, including types of marks (indication marks, warning marks and forbidden marks), specific positions (longitude and latitude coordinates, names of road sections where the marks are located and position descriptions), functions (providing road condition information, guiding traffic flow and early warning dangers) and current working states (normal, fault and maintenance), and acquiring index data of traffic flow, speed and congestion time before and after the traffic light-emitting marks are set on a monitored road section;
Calculating a fluency influence index by combining index data of traffic flow, speed and congestion time before and after the traffic light-emitting sign of the traffic light-emitting sign and a preset congestion time reduction evaluation standard, and comprehensively evaluating the influence degree of the traffic light-emitting sign on the fluency;
According to the influence degree, the marks are divided into different mark grades, namely key mark grades, important mark grades and general mark grades, corresponding dividing thresholds are allocated to the mark grades, and further the importance grade of the traffic luminous mark is determined according to the evaluation result, wherein the general mark grade refers to a mark which has a certain influence on the traffic smoothness but has a relatively limited effect of reducing the congestion time.
The technical scheme of the invention is further improved in that the multi-stage scheduling strategy module specifically comprises:
The traffic flow monitoring unit and the sign importance evaluation unit are used for collecting traffic flow data and state information of traffic luminous signs on roads in real time, further identifying areas with higher or lower flow, and evaluating scheduling requirements of different road sections by combining importance grades of the signs;
Different priorities are set according to traffic flow, sign importance and road section characteristics, higher priorities are given to high-flow areas or road sections with high sign importance, and a multi-level scheduling strategy is planned according to the given priorities, so that resources can be effectively distributed to the most needed areas;
And carrying out real-time scheduling according to the set priority and scheduling strategy, and carrying out scheduling processing on the high-flow and important mark areas by dynamically adjusting traffic light timing, lane guiding and traffic control means.
The technical scheme of the invention is further improved in that the resource allocation management module specifically comprises:
by combining a multi-level scheduling strategy and a regulation priority, analyzing the resource consumption conditions of different areas by monitoring traffic flow, sign importance and road section state data in real time, estimating the resource requirements of each period and each area in a high-flow and important sign area, and ensuring the prospective and the accuracy of resource allocation;
According to priority setting in a scheduling strategy, resources with different levels are allocated to each area and task, more computing power and network bandwidth are allocated preferentially in a high-traffic area or an important mark area, and a dynamic allocation mechanism ensures that the resources can respond to traffic condition changes in real time;
the use condition of system resources is monitored in real time, wherein the use condition comprises server load, network bandwidth and storage space, and the distribution of the resources is automatically adjusted;
The resource use condition of each area is continuously tracked, dynamic adjustment is carried out through a feedback mechanism, the actual consumption and scheduling effect of the resources are analyzed according to real-time data, whether the situation of excessive or insufficient resources exists is evaluated, efficient utilization of the resources under different loads is ensured, and response delay or unstable system caused by improper resource allocation is avoided.
The technical scheme of the invention is further improved in that the remote control execution module specifically comprises:
Analyzing according to the formulated scheduling strategy and the resource allocation result, evaluating the traffic flow, the sign importance and the resource condition of each area, and determining the area of which the display content and the brightness of the traffic luminous sign need to be adjusted by combining the real-time data, so as to ensure that the regulation and control of the sign are matched with the overall traffic management requirement;
Generating corresponding remote control instructions according to a scheduling strategy and an analysis result, wherein the remote control instructions comprise display contents, brightness adjustment and change time of traffic light-emitting signs, and dynamically adjust the display contents of the signs according to requirements of different areas to ensure timely updating and accurate transmission of information, wherein the remote control instructions are transmitted to each traffic sign device through a high-speed data communication network to ensure real-time and reliability of information transmission;
After receiving the remote control command, the traffic luminous sign updates the state according to the command requirement, including brightness adjustment and content change operation, and monitors the feedback state of the sign in real time, so as to ensure that each adjustment can be immediately effective and avoid unsmooth traffic management caused by delay or fault.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. The invention provides a traffic light-emitting sign remote regulation and control device and system based on Beidou positioning, which accurately positions traffic light-emitting signs through Beidou satellites and combines real-time traffic flow data, so that the remote real-time regulation and control of traffic signs is realized, the traffic management efficiency is greatly improved, the traffic condition change can be responded quickly, the display content and brightness of the signs can be adjusted timely, more timely and accurate road condition information is provided for a driver, and warning and indication signs can be replaced or updated timely according to the real-time road condition information, thereby effectively reminding the driver of paying attention to road change, dangerous road sections or traffic control conditions, greatly improving the alertness of the driver and reducing traffic accident risks caused by information lag or loss.
2. The invention provides a traffic light-emitting sign remote regulation and control device and system based on Beidou positioning, which realize reasonable allocation and efficient utilization of system resources through multistage scheduling strategies and regulation and control priority setting, and preferentially allocate resources in a high-flow area and an important sign area, so that the traffic management requirements of a key area are met, and meanwhile, the system avoids waste and excessive concentration of resources by monitoring and dynamically adjusting the resource allocation in real time, and effectively reduces traffic management cost.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is an external schematic view of a traffic light sign remote control device based on Beidou positioning;
FIG. 2 is a schematic diagram of functional modules of the system of the present invention.
In the figure, a traffic signal controller 1 and a signal controller 2.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment 1, as shown in figure 1 and figure 2, the invention provides a traffic luminous sign remote regulation and control device based on Beidou positioning, which comprises a traffic signal controller 1, wherein a signal controller 2 is fixedly arranged in the traffic signal controller 1, an intelligent solar guideboard control board is mounted on the signal controller 2, the main parameters of the intelligent solar guideboard control board are that solar charging management is carried out, a solar panel charging switch is actively closed when battery voltage exceeds a limit value, overdischarge protection is supported, the control board is closed when the battery voltage is lower than the limit value, overdischarge is avoided, two power supply modes of a solar battery and a commercial power are supported, a plurality of battery specifications are supported, a lead-acid battery (6V, 12V and 24V) and a lithium battery (7.4V, 11.1V and 22.2V) are selected through a dial switch, and a battery type and a power supply mode are supported, and at most 2 paths of LED power supply are supported to be output;
In addition, the traffic light-emitting sign remote regulation and control system based on Beidou positioning is realized based on a traffic light-emitting sign remote regulation and control device based on Beidou positioning, and comprises a Beidou positioning module, a signal enhancement processing module, a sign classification module, a multi-level scheduling strategy module, a resource allocation management module and a remote regulation and control execution module, wherein the modules are connected by electric signals;
The Beidou positioning module is used for receiving and processing Beidou satellite signals, determining the position of the traffic luminous sign, accurately calibrating the sign in a map and a system through accurate positioning, capturing signals of a plurality of Beidou satellites through a built-in high-sensitivity receiving antenna of the Beidou positioning module, calculating the propagation time of the signals, wherein the signals of the Beidou satellites comprise orbit information and time mark information of the satellites, decoding the signals by using a built-in decoding unit after receiving, extracting satellite navigation data comprising the position and clock difference of the satellites, further processing the decoded satellite navigation data, calculating the position of the traffic luminous sign relative to the satellite by calculating the propagation time difference of the plurality of satellite signals to a receiver and combining the known position of the satellite by utilizing a triangulation principle, comparing and calibrating the output longitude and latitude data with the actual position of the traffic luminous sign through the built-in high-sensitivity receiving antenna, and ensuring the accurate calibration of the sign on the map through fusion of the internal data and the real-time positioning information, further uploading the position data to the map of the traffic luminous sign to the map of the traffic management system, and ensuring that the position data can be reflected in the map of the traffic luminous sign in the system and the real position of the traffic luminous sign can be accurately and accurately calculated;
The signal enhancement processing module is used for enhancing and processing the received Beidou signal, reducing the influence of signal attenuation and multipath effect, improving the positioning precision, reducing the positioning error caused by signal problems, preprocessing the received Beidou satellite signal, including denoising and filtering operation, retaining effective satellite signal components by filtering high-frequency noise and interference signals, reducing the influence of signal attenuation, enabling the received signal to be purer, analyzing and processing multipath components in the signal by adopting a multipath effect suppression technology, resolving a direct signal and a reflected signal by adopting a signal processing technology (spectrum analysis), eliminating the multipath interference caused by signal reflection and refraction by adopting a signal processing technology (spectrum analysis), reducing the negative influence of multipath effect on the positioning precision by the signal processing technology, obviously improving the positioning accuracy in complex environment, wherein the direct signal generally has the shortest propagation path and the strongest signal strength, the reflected signal is weaker due to the longer propagation path, and the arrival time has delay, and further improving the quality of the filtered and enhanced signal by adopting a measure of optimizing the signal parameter and the signal strength, so that the signal quality is further improved and the multipath error can be clearly processed in the receiver;
The sign classification module is used for monitoring traffic flow, analyzing the importance of the traffic luminous signs by combining the positions of the traffic luminous signs and the influence of the traffic luminous signs on the traffic smoothness, and dividing the importance of the traffic luminous signs into different importance levels so as to allocate regulation and control priorities;
The multi-stage scheduling strategy module is used for implementing a multi-stage scheduling strategy according to traffic flow and sign importance, optimizing system resource allocation, reducing positioning response delay and improving real-time performance and efficiency of remote regulation;
the resource allocation management module is used for dynamically allocating and managing system resources according to the multi-level scheduling strategy and the regulation priority, ensuring that the system can still keep stable operation under high load, and reducing response delay caused by insufficient resources;
And the remote regulation and control execution module is used for remotely regulating and controlling the display content and brightness of the traffic luminous sign according to the scheduling strategy and the resource allocation result, realizing the real-time updating and regulation and control of the traffic sign and improving the flexibility and efficiency of traffic management.
In the embodiment 2, as shown in fig. 1 and 2, on the basis of the embodiment 1, the invention provides a technical scheme that a preferable sign classification module comprises a traffic flow monitoring unit and an importance evaluation unit;
The traffic flow monitoring unit is used for monitoring traffic flow in real time, analyzing traffic congestion and traffic flow density information, distinguishing high-flow areas from low-flow areas, providing real-time traffic data support for a dispatching strategy, collecting traffic flow data in real time through a sensor, a camera, a geomagnetic sensor and a radar which are arranged on a road in advance, analyzing vehicle speed, quantity and traffic flow density information, wherein the vehicle speed is the speed of a vehicle passing a certain point through the radar, the number of vehicles is the number of vehicles passing a certain road section in a unit time through the camera statistics unit time, the traffic flow density is the number of vehicles and the length of the road section in combination, calculating the number of vehicles on the road in unit length, dynamically analyzing the speed, the number and the traffic flow density of the vehicles, calculating the interval time and the speed distribution of the vehicles, analyzing the traffic state of each monitoring road section, identifying the relative change trend of the traffic flow by using a mode identification technology, analyzing the time difference of the adjacent vehicles passing the same detection point, analyzing the historical data of the monitoring road section passing three months, counting the traffic flow characteristics of different time sections (working days, weekdays, weekends and holidays), setting the traffic flow and the traffic flow of the high-speed and the traffic flow in the different areas, and the traffic flow in the high-speed areas, and the traffic flow in the low-speed areas, respectively, and determining the traffic flow in the high-speed and the traffic flow areas and the low-speed areas, and the traffic flow to be respectively, and the traffic flow in the high-speed areas and the traffic flow has the low flow and the traffic flow state;
The relative trend of traffic flow is expressed as follows:
Wherein Δv (t) is a relative trend of traffic flow at time t, V i (t) is a vehicle average speed of the ith monitored road section at time t, V base is a reference speed value, which is a reference speed set according to traffic management requirements, Q i (t) is a vehicle number of the ith monitored road section at time t, Q total (t) is a sum of vehicle numbers of all monitored road sections at time t, n is a number of monitored road sections, when Δv (t) is close to 0, it indicates that the trend of traffic flow is small, i.e., the traffic situation is relatively stable, when Δv (t) is large, it indicates that the trend of traffic flow is significant, i.e., the traffic situation is greatly changed, if the traffic flow is gradually increased, and the vehicle speed gradually decreases, the value of Δv (t) gradually increases, indicating that the traffic congestion trend is increased, and if the traffic speed gradually increases, the value of Δv (t) gradually decreases, indicating that the traffic flow is gradually improved, and if the traffic situation is not significantly stable, the traffic situation is maintained;
The expression of the traffic flow characteristic index is as follows:
Wherein F j is a traffic flow characteristic index of a jth zone for measuring a deviation degree of traffic flow characteristics of the zone from a reference value, T is a total number of time units in an analyzed period of time, representing a total number of time units in three months in the past, Q j (k) is a number of vehicles of the jth zone in the kth time unit, Q base,j is a reference number of vehicles of the jth zone, V j (k) is a mean speed of vehicles of the jth zone in the kth time unit, V ref,j is a reference speed of the jth zone, D j (k) is a desired speed of the jth zone in the kth time unit, i.e., a number of vehicles on a road of unit length, D avg,j is the average value of the traffic density in the j-th region, when F j approaches 0, the traffic flow characteristic representing the region is relatively stable, does not deviate much from the reference value or the reference value, when F j is large, the traffic flow characteristic representing the region is significantly changed, in the high flow region, since the number of vehicles is increased, the vehicle speed is decreased, the traffic density is increased, Q j (k) is increased, V j (k) is decreased, D j (k) is increased, the value of F j is increased, in the low flow region, the number of vehicles is small, the vehicle speed is fast, the traffic density is low, Q j (k) is decreased, V j (k) is increased (or remains unchanged but relatively high), D j (k) is decreased, resulting in a decrease in the value of F j;
The importance assessment unit is used for determining the influence of the traffic light-emitting sign on the traffic fluency according to a preset standard, assessing the importance of the traffic light-emitting sign by combining the position of the traffic light-emitting sign, determining the importance level of the traffic light-emitting sign, collecting detailed information of the traffic light-emitting sign, including the type of the sign (indicating sign, warning sign and banning sign), specific position (longitude and latitude coordinates, road section name and position description), function (providing road condition information, guiding traffic flow, warning danger) and current working state (normal, fault and maintenance), acquiring index data of the traffic flow, speed and congestion time before and after the traffic light-emitting sign is set on a monitored road section, calculating the fluency influence index by combining the index data of the traffic flow, speed and congestion time before and after the traffic light-emitting sign of the traffic light-emitting sign and the assessment standard of the preset congestion time reduction, comprehensively assessing the influence degree of the traffic light-emitting sign on the traffic fluency, classifying the signs into different sign levels according to the influence degree, respectively into the important sign levels and the general sign level, and distributing corresponding key mark levels for each sign level according to the key mark level, and further determining the importance level to the general impact level, wherein the fluency is limited;
A fluency impact index having the expression:
Wherein FLI is a fluency impact index for measuring the comprehensive impact degree of a traffic light sign on the fluency, V after is an average vehicle speed (km/h) after the traffic light sign is set, V before is an average vehicle speed (km/h) before the traffic light sign is set, Q after is a traffic flow (number of vehicles/hour) after the traffic light sign is set, Q before is a traffic flow (number of vehicles/hour) before the traffic light sign is set, Δt r is a congestion time reduction percentage, T before is a congestion time before the setting, T after is a congestion time after the setting, when the FLI is close to 0, the impact of the traffic light sign on the fluency is small, when the FLI is large, the traffic fluency is significantly improved by the traffic light sign, when V after is increased, Q after is increased (and the increase amplitude is larger than Q before), and Δt r are increased, the improvement effect of the traffic light sign on the fluency is more remarkable, and when V after is reduced, Q after is reduced (or the increase amplitude is r), the improvement effect of the fluency is small, and the improvement effect on the fluency is little;
The mark levels are in one-to-one correspondence with the division thresholds, and the correspondence is as follows:
the dividing threshold value of the key mark level is that FLI is more than or equal to BZ 1;
The dividing threshold value of the important mark level is BZ 2≤FLI<BZ1;
the dividing threshold value of the general mark level is 0< FLI < BZ 2;
Wherein FLI is a fluency impact index, BZ 1 is a lower threshold of a key mark level and an upper threshold of an important mark level, and BZ 2 is a lower threshold of an important mark level and an upper threshold of a general mark level;
the multi-level scheduling strategy module specifically comprises:
The traffic flow monitoring unit and the sign importance evaluation unit are used for collecting traffic flow data and state information of traffic light-emitting signs on roads in real time, further identifying areas with higher or lower traffic flows, and evaluating scheduling demands of different road sections by combining importance grades of the signs, setting different priorities according to traffic flow, sign importance and road section characteristics, giving higher priority to the areas with higher traffic flows or the road sections with higher sign importance, planning a multi-level scheduling strategy according to the given priorities, ensuring that resources can be effectively distributed to the most needed areas, enabling the road sections with serious traffic jam to obtain priority treatment in the scheduling strategy so as to reduce traffic delay and optimize traffic distribution, implementing real-time scheduling according to the set priorities and scheduling strategies, scheduling the areas with higher traffic flows and important signs by dynamically adjusting signal lamp timing, lane guiding and traffic control means, wherein the signal lamp timing is dynamically adjusted so as to optimize traffic smoothness, provide lane guiding information, guide vehicles to reasonably split, temporarily seal lanes and set traffic control means of detouring routes;
the resource allocation management module specifically includes:
By combining a multi-level scheduling strategy and a regulation priority, analyzing the resource consumption conditions of different areas by monitoring traffic flow, sign importance and road section state data in real time, estimating the resource demand of each period and area in a high-flow and important sign area, ensuring the resource allocation look-ahead and accuracy, allocating resources of different levels to each area and task according to priority setting in the scheduling strategy, allocating more computing capacity and network bandwidth preferentially in the high-flow area or important sign area, ensuring that the resources can respond to traffic condition changes in real time by a dynamic allocation mechanism, monitoring the service conditions of system resources in real time, including server load, network bandwidth and storage space, automatically adjusting the distribution of the resources, avoiding overload or response delay caused by insufficient resources in a certain single node or area, automatically starting a backup resource pool or adjusting the priority of the resources when a certain resource pool is close to saturation, ensuring the high-efficiency operation and stability of the system, reducing the risk caused by excessive concentration of the resources, continuously tracking the resource use conditions of each area, dynamically adjusting the resources by a feedback mechanism, analyzing whether the actual consumption of the resources is insufficient or not enough to schedule or not, ensuring the stable resource allocation caused by insufficient or not effective load when the real-time data is in response to the system;
the remote control execution module specifically comprises:
According to the formulated scheduling strategy and the resource allocation result, the traffic flow, the importance of the sign and the resource condition of each area are evaluated, the area of which the display content and the brightness of the traffic luminous sign need to be adjusted is determined by combining real-time data, the regulation and control of the sign are ensured to be matched with the overall traffic management requirement, corresponding remote control instructions are generated according to the scheduling strategy and the analysis result, the display content of the traffic luminous sign is dynamically adjusted according to the requirements of different areas, the timely update and accurate transmission of information are ensured, wherein the remote instructions are transmitted to each traffic sign device through a high-speed data communication network, the real-time performance and the reliability of information transmission are ensured, after the remote control instructions are received, the traffic luminous sign is updated according to the instruction requirements, the brightness adjustment and the content change operation are ensured, the feedback state of the sign is monitored in real time, each adjustment is ensured to be immediately effective, the traffic management disorder caused by delay or fault is avoided, meanwhile, the problem in the sign update is found, corrective measures are rapidly taken, and the accuracy and the timely display of the traffic sign are ensured.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The traffic light-emitting sign remote regulation and control device based on Beidou positioning comprises a traffic signal controller (1) and is characterized in that a signal controller (2) is fixedly arranged in the traffic signal controller (1), and a traffic light-emitting sign remote regulation and control system is integrated in the signal controller (2).
2. The traffic light-emitting sign remote regulation and control system based on Beidou positioning is realized based on the traffic light-emitting sign remote regulation and control device based on Beidou positioning according to claim 1, and is characterized by comprising a Beidou positioning module, a signal enhancement processing module, a sign classification module, a multi-level scheduling strategy module, a resource allocation management module and a remote regulation and control execution module, wherein the modules are electrically connected;
the Beidou positioning module is used for receiving and processing Beidou satellite signals and determining the position of the traffic luminous sign;
The signal enhancement processing module is used for enhancing and processing the received Beidou signal;
The sign classification module is used for monitoring traffic flow, analyzing the importance of the traffic luminous signs by combining the positions of the traffic luminous signs and the influence of the traffic luminous signs on the traffic smoothness, and dividing the importance of the traffic luminous signs into different importance levels so as to allocate regulation and control priorities;
the multi-level scheduling strategy module is used for implementing a multi-level scheduling strategy according to traffic flow and sign importance;
the resource allocation management module is used for dynamically allocating and managing system resources according to the multi-level scheduling strategy and the regulation priority;
The remote control execution module is used for remotely controlling the display content and the brightness of the traffic luminous sign according to the scheduling strategy and the resource allocation result.
3. The traffic light-emitting sign remote control system based on Beidou positioning according to claim 2, wherein the sign classification module comprises a traffic flow monitoring unit and an importance evaluation unit;
The traffic flow monitoring unit is used for monitoring traffic flow in real time, analyzing traffic jam and traffic flow density information and distinguishing a high flow area from a low flow area;
the importance evaluation unit is used for determining the influence of the traffic luminous sign on the traffic fluency according to a preset standard, evaluating the importance of the traffic luminous sign by combining the position of the traffic luminous sign and determining the importance level of the traffic luminous sign.
4. The traffic light sign remote control system based on Beidou positioning according to claim 2, wherein the Beidou positioning module specifically comprises:
The Beidou positioning module captures signals of a plurality of Beidou satellites through a built-in high-sensitivity receiving antenna and calculates propagation time of the signals, wherein the signals of the Beidou satellites comprise orbit information and time mark information of the satellites;
after receiving, the Beidou positioning module decodes the signals by utilizing a built-in decoding unit, and extracts satellite navigation data comprising the position and clock error of satellites;
Further processing the decoded satellite navigation data, calculating the position of the traffic luminous sign relative to the satellite by calculating the propagation time difference between a plurality of satellite signals and a receiver and combining the known position of the satellite and utilizing the triangulation principle, and outputting the position in the form of longitude and latitude coordinates;
After the positioning calculation is completed, the Beidou positioning module compares and calibrates the output longitude and latitude data with the actual position of the traffic luminous sign, and further uploads the position data to a map of a traffic management system in real time.
5. The traffic light sign remote control system based on Beidou positioning according to claim 4, wherein the signal enhancement processing module specifically comprises:
the signal enhancement processing module is used for preprocessing the received signals of the Beidou satellite and comprises denoising and filtering operations;
The multipath effect suppression technology is adopted to analyze and process multipath components in the signals, the direct signals and the reflected signals are distinguished by utilizing the signal processing technology through analyzing the arrival time and paths of the signals, and multipath interference generated by signal reflection and refraction is eliminated by utilizing the signal processing technology of self-adaptive filtering;
The signal after filtering and multipath inhibition is enhanced by optimizing signal parameters and enhancing signal strength.
6. The traffic light sign remote control system based on Beidou positioning according to claim 3, wherein the traffic flow monitoring unit specifically comprises:
the traffic flow data is collected in real time through a sensor, a camera, a geomagnetic sensor and a radar which are arranged on a road in advance, and vehicle speed, quantity and traffic flow density information are analyzed;
dynamically analyzing the speed, the number and the traffic density of vehicles, calculating the interval time and the speed distribution of the vehicles, analyzing the traffic state of each monitored road section, and identifying the relative change trend of the traffic flow by using a pattern recognition technology, wherein the interval time of the vehicles, namely the time difference of adjacent vehicles passing through the same detection point;
Analyzing historical data of the monitored road section in three months, counting traffic flow characteristics of different time periods, setting a flow threshold to distinguish a high flow area and a low flow area, dividing the road into different flow areas according to the traffic state analysis result of the monitored road section, and respectively calculating traffic flow characteristic indexes of each area to determine the type of the flow area to which the area belongs.
7. The traffic light sign remote control system based on Beidou positioning according to claim 6, wherein the importance assessment unit specifically comprises:
Collecting detailed information of traffic light-emitting marks, including types, specific positions, functions and current working states of the marks, and acquiring index data of traffic flow, speed and congestion time before and after the traffic light-emitting marks are set on a monitored road section;
Calculating a fluency influence index by combining index data of traffic flow, speed and congestion time before and after the traffic light-emitting sign of the traffic light-emitting sign and a preset congestion time reduction evaluation standard, and comprehensively evaluating the influence degree of the traffic light-emitting sign on the fluency;
According to the influence degree, the marks are divided into different mark levels, namely key mark levels, important mark levels and general mark levels, corresponding dividing thresholds are allocated to the mark levels, and then the importance levels of the traffic luminous marks are determined according to the evaluation result.
8. The traffic light sign remote control system based on Beidou positioning according to claim 2 is characterized in that the multi-level scheduling strategy module specifically comprises:
The traffic flow monitoring unit and the sign importance evaluation unit are used for collecting traffic flow data and state information of traffic luminous signs on roads in real time, further identifying areas with higher or lower flow, and evaluating scheduling requirements of different road sections by combining importance grades of the signs;
Different priorities are set according to traffic flow, sign importance and road section characteristics, and a multi-level scheduling strategy is planned according to the given priorities;
And carrying out real-time scheduling according to the set priority and scheduling strategy, and carrying out scheduling processing on the high-flow and important mark areas by dynamically adjusting traffic light timing, lane guiding and traffic control means.
9. The traffic light sign remote control system based on Beidou positioning according to claim 8, wherein the resource allocation management module specifically comprises:
by combining a multi-level scheduling strategy and a regulation priority, analyzing the resource consumption conditions of different areas by monitoring traffic flow, sign importance and road section state data in real time, and estimating the resource requirements of each period and each area in a high-flow and important sign area;
According to priority setting in a scheduling strategy, allocating resources with different levels for each region and task;
the use condition of system resources is monitored in real time, wherein the use condition comprises server load, network bandwidth and storage space, and the distribution of the resources is automatically adjusted;
Continuously tracking the use condition of resources in each area, dynamically adjusting the use condition by a feedback mechanism, analyzing the actual consumption and scheduling effect of the resources according to real-time data, and evaluating whether the excessive or insufficient condition of the resources exists.
10. The traffic light sign remote control system based on Beidou positioning according to claim 9, wherein the remote control execution module specifically comprises:
Analyzing according to the formulated scheduling strategy and the resource allocation result, evaluating the traffic flow, the sign importance and the resource condition of each area, and determining the area of which the display content and the brightness of the traffic luminous sign need to be adjusted by combining the real-time data;
Generating corresponding remote control instructions including display content, brightness adjustment and change time of traffic light-emitting signs according to a scheduling strategy and an analysis result, and dynamically adjusting the display content of the signs according to requirements of different areas;
after receiving the remote control instruction, the traffic light sign updates the state according to the instruction requirement, including brightness adjustment and content change operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510553994.8A CN120183211B (en) | 2025-04-29 | Traffic luminous sign remote regulation and control device and system based on Beidou positioning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510553994.8A CN120183211B (en) | 2025-04-29 | Traffic luminous sign remote regulation and control device and system based on Beidou positioning |
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| CN120183211A true CN120183211A (en) | 2025-06-20 |
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