CN107622668A - A kind of dynamic and visual intersection management system for monitoring based on RFID - Google Patents
A kind of dynamic and visual intersection management system for monitoring based on RFID Download PDFInfo
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- CN107622668A CN107622668A CN201710993145.XA CN201710993145A CN107622668A CN 107622668 A CN107622668 A CN 107622668A CN 201710993145 A CN201710993145 A CN 201710993145A CN 107622668 A CN107622668 A CN 107622668A
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Abstract
The invention discloses a kind of dynamic and visual intersection management system for monitoring based on RFID, the system is made up of RFID emission systems, RFID reception system, the information transmission system, whistle control system, central processing system, interactive interface system, input system, speech prompting system, video acquisition system.System is by gathering RFID data information, road network dynamic evaluation is carried out to crossing inlet road speed, delay, service level, dynamic control is carried out to Intersections by changes in flow rate, system data precision height, wide coverage, dynamic are strong, contribute to traffic administration person to grasp intersection running situation in real time, scientific basis is provided for traffic improvement decision-making.
Description
Technical field
The present invention relates to intersection analysis field, more particularly to one kind can run to intersection traffic into Mobile state point
Analysis and a kind of dynamic and visual intersection management system for monitoring based on RFID of signal control.
Background technology
With the continuous aggravation of traffic congestion, traffic administration person hand over there is an urgent need to carry out improvement research to traffic congestion
Prong is as the emphasis that normal hair congested nodes are traffic improvement research.Intersection grade is complicated, entrance driveway is more, monitoring difficulty
Larger, conventional cross mouth monitoring method is based on manual research, and not only survey data precision is low, its monitoring index often rests on
On flow monitoring, intelligent transportation data type demand can not be met.RFID system is the hot spot technology in traffic study field how
It is the primary study problem in the field to intersection progress dynamic monitoring, signal control using its data edge.
The content of the invention
The present invention is to reach above-mentioned purpose, there is provided a kind of dynamic and visual intersection monitoring management system based on RFID
System.
The system is by RFID emission systems, RFID reception system, the information transmission system, whistle control system, central processing
System, interactive interface system, input system, speech prompting system, video acquisition system composition.
The RFID emission systems are made up of antenna, coupling element, RFID electronic chips, send radiofrequency signal in real time,
On RFID emission systems installation vehicle.
The RFID reception system is provided with antenna, RFID reader, and RFID reception system monitors installed in road edge
At point, monitoring point receives the radio frequency letter that RFID emission systems are sent at each access road stop line 1m, the 200m in intersection
Number, car number and latitude and longitude information are obtained, and information is delivered to central processing system by the information transmission system.
The video acquisition system is made up of camera, memory, and memory is hard disk, and camera is spherical camera,
Real-time recording is carried out to intersection, and is stored in memory, camera is arranged on the traffic lights support column of intersection.
The central processing system is made up of central processing unit, memory, and memory is made up of hard disk, is stored with city road
Road electronic map, including section numbering, grade, the traffic capacity, free flow speed and intersection numbering；Central processing unit calculates
The service level of each entrance ingress of intersection node, comprises the following steps：
S1：Each entrance driveway in intersection includes RFID reception system at 2, by identifying car number, counts vehicle and entered this and
The transit time of the continuous 2 RFID reception systems in mouth road, calculates its average speed：
Wherein, V1For vehicle average speed, T1 is its transit time, and S is RFID reception system spacing at continuous two, 200m；
S2：According to each car average speed, the average speed in counting statistics time range T：
Wherein, V is average link speed, ViFor the average speed of i-th car；
S3：Its average transit time is calculated according to average link speed, carried out with the average transit time under free flow speed
Contrast, calculates delay duration：
D is delay duration, and unit is the second,For free flow speed, the free flow speed under different categories of roads is：Through street
（60km/h）, trunk roads（50km/h）, secondary distributor road（40km/h）, branch road（30km/h）；
S4：Duration is delayed according to each entrance driveway and determines service level：A levels（）, B levels（）, C levels（）, D levels（）, E levels（）；
Central processing unit sends entrance driveway delay duration, service level signal to interactive interface system.
The central processing system passes through the vehicle number of RFID reception system monitoring point by calculating, and monitoring point is that distance stops
Monitoring point at line 200m, central processing unit will count the vehicle number per minute by the monitoring point, according to vehicle number to signal
Control system carries out intelligent control, sends scheduling signals to whistle control system, its step is：
S1：Count the vehicle number per minute by each entrance ingress monitoring point；
S2：Difference T is done according to section maximum stream flow and section minimum dischargem, the green light in maximum flow section is determined according to difference
Time raises the time：Raise 5s（）, up-regulation 10s（）, up-regulation 20s（）；According to
The green light up-regulation time in the most sections of vehicle number determines that the time is lowered in flow minimum section, lowers time and up-regulation time consistency,
And green light minimum time is 10s.
The whistle control system is made up of signal lamp, support column, power-supply device, and whistle control system receives central processing
Traffic lights are carried out intelligent scheduling by the scheduling signals of system, and signal lamp is arranged on support top end.
The interactive interface system is made up of system interface, internal queries module, the system interface need to input account,
Password enters, and internal queries module is inquired about intersection service level, running situation by inputting intersection ID numberings, is shown
Show speed, service level information, it is different according to speed, section is shown with different colours, a height of green of speed, speed is low
For red.
The input system is made up of mouse, keyboard.
The speech prompting system is made up of loudspeaker, and when link flow, which exceedes, sets threshold value, loudspeaker will be sent out
Go out sound, prompt monitoring personnel.
Brief description of the drawings
Fig. 1 is a kind of system frame of the dynamic and visual intersection management system for monitoring based on RFID provided by the invention
Figure.
Embodiment
The invention provides a kind of dynamic and visual intersection management system for monitoring based on RFID.
The system is by RFID emission systems, RFID reception system, the information transmission system, whistle control system, central processing
System, interactive interface system, input system, speech prompting system, video acquisition system composition.
The RFID emission systems are made up of antenna, coupling element, RFID electronic chips, send radiofrequency signal in real time,
On RFID emission systems installation vehicle.
The RFID reception system is provided with antenna, RFID reader, and RFID reception system monitors installed in road edge
At point, monitoring point receives the radio frequency letter that RFID emission systems are sent at each access road stop line 1m, the 200m in intersection
Number, car number and latitude and longitude information are obtained, and information is delivered to central processing system by the information transmission system.
The video acquisition system is made up of camera, memory, and memory is hard disk, and camera is spherical camera,
Real-time recording is carried out to intersection, and is stored in memory, camera is arranged on the traffic lights support column of intersection.
The central processing system is made up of central processing unit, memory, and memory is made up of hard disk, is stored with city road
Road electronic map, including section numbering, grade, the traffic capacity, free flow speed and intersection numbering；Central processing unit calculates
The service level of each entrance ingress of intersection node, comprises the following steps：
S1：Each entrance driveway in intersection includes RFID reception system at 2, by identifying car number, counts vehicle and entered this and
The transit time of the continuous 2 RFID reception systems in mouth road, calculates its average speed：
Wherein, V1For vehicle average speed, T1 is its transit time, and S is RFID reception system spacing at continuous two, 200m；
S2：According to each car average speed, the average speed in counting statistics time range T：
Wherein, V is average link speed, ViFor the average speed of i-th car；
S3：Its average transit time is calculated according to average link speed, carried out with the average transit time under free flow speed
Contrast, calculates delay duration：
D is delay duration, and unit is the second,For free flow speed, the free flow speed under different categories of roads is：Through street
（60km/h）, trunk roads（50km/h）, secondary distributor road（40km/h）, branch road（30km/h）；
S4：Duration is delayed according to each entrance driveway and determines service level：A levels（）, B levels（）, C levels（）, D levels（）, E levels（）；
Central processing unit sends entrance driveway delay duration, service level signal to interactive interface system.
The central processing system passes through the vehicle number of RFID reception system monitoring point by calculating, and monitoring point is that distance stops
Monitoring point at line 200m, central processing unit will count the vehicle number per minute by the monitoring point, according to vehicle number to signal
Control system carries out intelligent control, sends scheduling signals to whistle control system, its step is：
S1：Count the vehicle number per minute by each entrance ingress monitoring point；
S2：Difference T is done according to section maximum stream flow and section minimum dischargem, the green light in maximum flow section is determined according to difference
Time raises the time：Raise 5s（）, up-regulation 10s（）, up-regulation 20s（）；According to
The green light up-regulation time in the most sections of vehicle number determines that the time is lowered in flow minimum section, lowers time and up-regulation time consistency,
And green light minimum time is 10s.
The whistle control system is made up of signal lamp, support column, power-supply device, and whistle control system receives central processing
Traffic lights are carried out intelligent scheduling by the scheduling signals of system, and signal lamp is arranged on support top end.
The interactive interface system is made up of system interface, internal queries module, the system interface need to input account,
Password enters, and internal queries module is inquired about intersection service level, running situation by inputting intersection ID numberings, is shown
Show speed, service level information, it is different according to speed, section is shown with different colours, a height of green of speed, speed is low
For red.
The input system is made up of mouse, keyboard.
The speech prompting system is made up of loudspeaker, and when link flow, which exceedes, sets threshold value, loudspeaker will be sent out
Go out sound, prompt monitoring personnel.
When automobile passes through crossroad entrance driveway, RFID is sent will determine car number and latitude and longitude coordinates with reception system,
Central processing unit calculates its passage rate according to time of the vehicle Jing Guo continuous RFID reception system, according to the current speed of each car
Degree, the rolling stock average speed in the counting statistics time is calculated transit time by central processing unit, with free flow speed
The transit time calculated is contrasted, and calculates delay duration, and service level is determined according to delay duration.Meanwhile centre
Manage device and intelligent control is carried out to signal lamp according to uninterrupted, by calculating maximum stream flow and minimum discharge difference, it is determined that stream
Measure the green light up-regulation time in maximum section and the green light in minimum discharge section is lowered the time, up-regulation time and downward time consistency,
And send scheduling signals to whistle control system.After whistle control system receives scheduling signals, intelligence will be carried out to signal lamp
Control, traffic light time is adjusted, improve the traffic efficiency of intersection.In addition, interactive interface system is logged in by account number cipher,
Intersection numbering is inquired about according to needed for input to inquire about intersection information, can inquire about entrance driveway speed, delay, service water
It is flat, dynamic realtime detection is carried out to intersection, when flow is excessive, speech prompting system will send sound, remind testing staff,
Paid attention to big flow, give warning in advance traffic congestion, has accomplished real dynamic traffic monitoring.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of dynamic and visual intersection management system for monitoring based on RFID, it is characterised in that the system is launched by RFID
System, RFID reception system, the information transmission system, whistle control system, central processing system, interactive interface system, input
System, speech prompting system, video acquisition system composition.
2. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the RFID emission systems are made up of antenna, coupling element, RFID electronic chips, send radiofrequency signal, RFID transmittings in real time
On system installation vehicle.
3. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In, the RFID reception system is provided with antenna, RFID reader, and RFID reception system is arranged at road edge monitoring point,
Monitoring point receives the radiofrequency signal that RFID emission systems are sent at each access road stop line 1m, the 200m in intersection, obtains
Car number and latitude and longitude information, and information is delivered to central processing system by the information transmission system.
4. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the video acquisition system is made up of camera, memory, and memory is hard disk, and camera is spherical camera, to intersecting
Mouth carries out real-time recording, and is stored in memory, and camera is arranged on the traffic lights support column of intersection.
5. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the central processing system is made up of central processing unit, memory, and memory is made up of hard disk, is stored with urban road electricity
Sub- map, including section numbering, grade, the traffic capacity, free flow speed and intersection numbering；Central processing unit calculates intersection
The service level of mouth each entrance ingress of node, comprises the following steps：
S1：Each entrance driveway in intersection includes RFID reception system at 2, by identifying car number, counts vehicle and entered this and
The transit time of the continuous 2 RFID reception systems in mouth road, calculates its average speed：
Wherein, V1For vehicle average speed, T1 is its transit time, and S is RFID reception system spacing at continuous two, 200m；
S2：According to each car average speed, the average speed in counting statistics time range T：
Wherein, V is average link speed, ViFor the average speed of i-th car；
S3：Its average transit time is calculated according to average link speed, carried out with the average transit time under free flow speed
Contrast, calculates delay duration：
D is delay duration, and unit is the second,For free flow speed, the free flow speed under different categories of roads is：Through street
（60km/h）, trunk roads（50km/h）, secondary distributor road（40km/h）, branch road（30km/h）；
S4：Duration is delayed according to each entrance driveway and determines service level：A levels（）, B levels（）, C levels（）, D levels（）, E levels（）；
Central processing unit sends entrance driveway delay duration, service level signal to interactive interface system.
6. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the central processing system passes through the vehicle number of RFID reception system monitoring point by calculating, and monitoring point is apart from stop line
Monitoring point at 200m, central processing unit will count the vehicle number per minute by the monitoring point, according to vehicle number to signal control
System processed carries out intelligent control, sends scheduling signals to whistle control system, its step is：
S1：Count the vehicle number per minute by each entrance ingress monitoring point；
S2：Difference T is done according to section maximum stream flow and section minimum dischargem, when determining the green light in maximum flow section according to difference
Between raise the time：Raise 5s（）, up-regulation 10s（）, up-regulation 20s（）；According to car
The green light up-regulation time in most sections of number determines that the time is lowered in flow minimum section, lowers time and up-regulation time consistency, and
Green light minimum time is 10s.
7. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the whistle control system is made up of signal lamp, support column, power-supply device, and whistle control system receives central processing system
Scheduling signals, to traffic lights carry out intelligent scheduling, signal lamp be arranged on support top end.
8. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the interactive interface system is made up of system interface, internal queries module, and the system interface need to input account, password
Into internal queries module is inquired about intersection service level, running situation by inputting intersection ID numberings, display speed
Degree, service level information, it is different according to speed, section is shown with different colours, a height of green of speed, speed is low to be red
Color.
9. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the input system is made up of mouse, keyboard.
10. a kind of dynamic and visual intersection management system for monitoring based on RFID according to claim 1, its feature exist
In the speech prompting system is made up of loudspeaker, and when link flow, which exceedes, sets threshold value, loudspeaker will send sound
Sound, prompt monitoring personnel.
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| CN110363998A (en) * | 2019-07-16 | 2019-10-22 | 辽宁瑞华实业集团高新科技有限公司 | The edge processing apparatus and method for monitoring and dispatching for mine servant's vehicle flowrate |
| CN111951551A (en) * | 2020-08-10 | 2020-11-17 | 北京计算机技术及应用研究所 | Method for detecting traffic jam degree by radio frequency identification |
| CN112164239A (en) * | 2020-10-27 | 2021-01-01 | 重庆市市政设计研究院有限公司 | Traffic signal lamp abnormal state identification and early warning system based on RFID |
| CN112542050A (en) * | 2020-12-23 | 2021-03-23 | 重庆市市政设计研究院有限公司 | Complicated interchange traffic analysis device and method based on unmanned oblique photography |
| CN113112816A (en) * | 2021-04-06 | 2021-07-13 | 安徽百诚慧通科技有限公司 | Method for extracting average running delay of vehicle on road section |
| CN113658434A (en) * | 2021-08-24 | 2021-11-16 | 上海市城市建设设计研究总院（集团）有限公司 | Radio frequency identification dynamic visualization intersection monitoring management system and detection method |
| CN113724486A (en) * | 2021-07-12 | 2021-11-30 | 重庆市市政设计研究院有限公司 | Dynamic sensing algorithm and device for cross-section traffic volume of RFID-DAS |
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| CN113112816A (en) * | 2021-04-06 | 2021-07-13 | 安徽百诚慧通科技有限公司 | Method for extracting average running delay of vehicle on road section |
| CN113724486A (en) * | 2021-07-12 | 2021-11-30 | 重庆市市政设计研究院有限公司 | Dynamic sensing algorithm and device for cross-section traffic volume of RFID-DAS |
| CN113658434A (en) * | 2021-08-24 | 2021-11-16 | 上海市城市建设设计研究总院（集团）有限公司 | Radio frequency identification dynamic visualization intersection monitoring management system and detection method |
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Application publication date: 20180123 |