CN102063794A - Urban expressway automatic even detecting and synergetic command dispatching system based on occupation ratio data - Google Patents
Urban expressway automatic even detecting and synergetic command dispatching system based on occupation ratio data Download PDFInfo
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Abstract
The invention discloses an urban expressway automatic even detecting and synergetic command dispatching system based on occupation ratio data, which comprises a traffic flow detecting unit, an automatic even detecting unit and a synergetic command dispatching unit, wherein the automatic even detecting unit is connected with the traffic flow detecting unit and is provided with an even research and judgment module; the even research and judgment module receives occupation ratio data transferred by the traffic flow detecting unit, compares the occupation ratio data with a threshold value after calculating the occupation ratio data and judges whether a traffic event happens or not; the synergetic command dispatching unit is connected with the automatic event detecting unit; and the synergetic command dispatching unit is connected with a lane commanding light on the expressway and controls a work indicating state of the lane commanding light. When the traffic event happens, the synergetic command dispatching unit sets the lane commanding light at the upstream of the accident into a no-passing state, and a vehicle positioned on the upstream lane of the accident scene can select other lanes to pass in time, thereby effectively preventing the traffic jam phenomenon caused by the traffic event.
Description
Technical field
The present invention relates to intelligent transportation control field, be specifically related to a kind of incident and detect automatically and collaborative command dispatching system based on city expressway motor vehicle flow and occupation rate data.
Background technology
Handle the technology that traffic events or incident are detected automatically based on video image, become a kind of important detection technique and be subjected to extensive attention both domestic and external.But using video sensor that city expressway traffic events or incident are detected ubiquitous problem automatically is the influence that the quality of the image that obtains by video camera is subjected to several factors, and these factors comprise: 1. the angle that is provided with of video camera; 2. blocking mutually between the vehicle; 3. illumination also can affect to the outward appearance of vehicle with the change of weather in time; 4. the influence that instantaneous variation produced of vehicle on position, direction, the vehicle that for example comes into view has different speed, and aspects such as the shape of vehicle, size, color all can change in the video that captures; 5. the body color of vehicle is subject to the influence of perimeter lights light color and the interference of background.In addition, be limited in scope because the Video Detection sensor is laid in city expressway, and can only detect the traffic events that in the video camera visual range, takes place, therefore can't satisfy Modern Traffic management requirement efficiently in time.
The defective that exists when adopting video sensor that traffic events or incident are detected automatically in order to solve, the ANOMALOUS VARIATIONS of highway section upstream and downstream flow and occupation rate was carried out the technology that automatic event detects when prior art disclosed according to generation traffic events or incident, Chinese patent literature CN101540103A discloses a kind of traffic information collection and time disposal route and system thereof, and described disposal route is: the information of choosing is obtained the cycle; Obtain the end of term in week in each information, gather the traffic data in above-mentioned certain highway section in real time, wherein this traffic data comprises traffic occupation rate and speed; This traffic data of pre-service; This traffic data is carried out traffic behavior analysis and traffic events check and analysis, obtain the traffic state information and the traffic event information of corresponding road section.The traffic data of this method afford collection has been realized the workload of a large amount of artificial judgment has been saved in the automatic differentiation of road traffic state and traffic events and issue in time; Information is issued simple, intuitive and in time, can in time be relieved traffic congestion for the traffic administration personnel simultaneously, and the guiding driver selects best traffic route that real-time traffic information is provided.
Yet the defective that above-mentioned prior art still exists is, the traffic administration personnel also need certain hour from obtaining information to traffic is dredged, when accident takes place, can't dredge and control the vehicle that is positioned at upstream, the scene of the accident immediately like this, cause the traffic jam of upstream easily; Especially when accident occurs in the through street,, can cause occurring very serious traffic jam phenomenon if the vehicle of the fast road ramp porch of upstream, the scene of the accident is not in time controlled.
Summary of the invention
When accident takes place, can't dredge and control the vehicle that is positioned at upstream, the scene of the accident immediately like this in order to solve automatic checkout system of the prior art, cause the traffic jam of upstream easily; Especially when accident occurs on the through street,, can cause very serious traffic jam phenomenon if the vehicle of the fast road ramp porch of upstream, the scene of the accident is not in time controlled.The invention provides a kind of city expressway automatic event and detect and work in coordination with command dispatching system based on the occupation rate data.
The technical scheme that the city expressway automatic event based on the occupation rate data described in the present invention detected and worked in coordination with command dispatching system is as follows:
A kind of city expressway automatic event based on the occupation rate data detects and works in coordination with command dispatching system, comprising:
Be arranged on the magnitude of traffic flow detecting unit of a plurality of section parts of road, be used to detect the occupation rate on each track of each section part;
With the automatic event detecting unit that described magnitude of traffic flow detecting unit is connected, described automatic event detecting unit is provided with incident and studies and judges module, and described incident is studied and judged module memory and contained threshold value; Described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, described incident studies and judges that module is calculated on each track, in per two adjacent sections, the difference of the difference of the absolute difference of upstream section and downstream section occupation rate, upstream and downstream section occupation rate and the ratio of upstream occupation rate, upstream and downstream section occupation rate is with the ratio of downstream occupation rate and compare with its corresponding threshold respectively, judges whether each highway section traffic events takes place;
Be connected with collaborative command scheduling unit with described automatic event detecting unit, described collaborative command scheduling unit receives the result of determination that described incident is studied and judged module, and described collaborative command scheduling unit links to each other with track command lamp on the described through street and controls the work indicating status of described track command lamp according to the result of determination of described automatic event detecting unit.
Described collaborative command scheduling unit also links to each other with described fast road ramp porch signal lamp, controls the duty of described fast road ramp porch signal lamp.
Described automatic event detects and works in coordination with command dispatching system and also comprises a plurality of video monitor that are arranged on the described through street;
Described automatic event detecting unit also is provided with described incident and studies and judges the video callback events affirmation module that module is connected, described video callback events confirms that module is connected respectively with a plurality of video monitor on the described through street, and described video callback events affirmation module is used to adjust back the monitoring picture of described video monitor.
Described collaborative command scheduling unit also comprises police strength command scheduling module, and described police strength command scheduling module is connected with the city traffic management department alarm and command system, assigns the policeman nearest apart from the spot to connect after incident is confirmed and deals with emergencies and dangerous situations.
Described through street is provided with a plurality of variable information plates, described variable information plate is studied and judged module with described incident and is connected, when described incident is studied and judged module and is confirmed to have traffic events to take place, described incident is studied and judged module and is assigned instruction to the variable information plate that is positioned at upstream, the site of the accident, by described variable information plate issue event information.
Described video callback events confirms that module is connected with described police strength command scheduling module.
What described automatic event detected and worked in coordination with command dispatching system detects and works in coordination with the method for command scheduling based on the city expressway automatic event of occupation rate data, and it comprises the steps:
(1) be arranged on the magnitude of traffic flow detecting unit of each section part of road, detect the occupation rate data on each track of each section part, and the incident that is sent to described automatic event detecting unit is studied and judged module;
(2) described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, and the threshold value of calculating back and its storage inside according to the occupation rate data of per two adjacent sections on each track compares to judge whether each highway section traffic events takes place:
A. calculate on each track, in per two adjacent sections, the absolute difference of upstream section and downstream section occupation rate and absolute difference threshold ratio if the absolute difference of upstream and downstream section occupation rate surpasses described absolute difference threshold value, then continue step b;
B. further calculate the ratio of the difference of described upstream and downstream section occupation rate and upstream occupation rate and first proportion threshold value relatively,, then continue step c if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream;
C. the difference of further calculating occupation rate between the described upstream and downstream compares with the ratio and second proportion threshold value of downstream occupation rate, if the ratio of the difference of occupation rate and downstream occupation rate surpasses second proportion threshold value between the upstream and downstream, then continues steps d;
D. the difference of further calculating occupation rate between the described upstream and downstream and the ratio of upstream occupation rate and described first proportion threshold value relatively, if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream, then judging has accident to take place;
(3) studying and judging module when described incident judges when having traffic events to take place, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the track command lamp that described collaborative command scheduling unit controls is positioned at upstream, track, place, the site of the accident is no through traffic state.
In step (3), when described incident is studied and judged module and is confirmed to have traffic events to take place, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the fast road ramp entry signal lamp that described collaborative command scheduling unit controls is positioned at the upstream, highway section of the site of the accident is a red light.
In step (3), study and judge when described incident and to assign instruction to described video callback events when module judges that a certain highway section has traffic events to take place and confirm module, the described video pictures that the traffic events highway section may take place of described video callback events affirmation module readjustment is confirmed accident
If described video callback events is confirmed module and is confirmed to have traffic events to take place, then described video callback events confirms that module is sent to described incident with result of determination and studies and judges module, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the track command lamp that described collaborative command scheduling unit controls is positioned at the upstream in track, place, the site of the accident is no through traffic state;
If described video callback events is confirmed module and confirms not have traffic events to take place that then described incident is studied and judged module and no longer sent information to described collaborative command scheduling unit.
In step (3), described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, instruction is assigned to described police strength command scheduling module in described collaborative command scheduling unit, assigns the policeman nearest apart from the spot to connect and deals with emergencies and dangerous situations.
When described video callback events confirms that module can't be called the video information that the traffic events highway section may take place, described video callback events affirmation module sends instruction to described police strength command scheduling module, assigns the policeman arrival nearest apart from the spot that the traffic events highway section may take place and carries out the scene affirmation.
The invention has the advantages that:
(1) the city expressway automatic event based on the occupation rate data of the present invention detects and works in coordination with command dispatching system, comprises the magnitude of traffic flow detecting unit that is arranged on a plurality of section parts of road; The automatic event detecting unit that is connected with described magnitude of traffic flow detecting unit, described automatic event detecting unit is provided with incident and studies and judges module, described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, the back compares with threshold value as calculated, judges whether each highway section traffic events takes place; Be connected with collaborative command scheduling unit with described automatic event detecting unit, described collaborative command scheduling unit receives the result of determination of described automatic event detecting unit, and described collaborative command scheduling unit links to each other with track command lamp on the described through street and controls the work indicating status of described track command lamp.When traffic events takes place, the track command lamp of upstream, the scene of the accident, described collaborative command scheduling unit is set to that no through traffic state, like this, the vehicle that is positioned on the track, upstream, the scene of the accident can carry out the track conversion in place far away in advance in distance accident highway section, select other track current, effectively avoided vehicle to show, near the accident highway section time, just carried out the track conversion and the traffic jam phenomenon that causes because of not receiving accident in advance.
(2) the city expressway automatic event based on the occupation rate data of the present invention detects and works in coordination with command dispatching system, described collaborative command scheduling unit also links to each other with described fast road ramp porch signal lamp, control the duty of described fast road ramp porch signal lamp, when described automatic event detecting unit confirms to have traffic events to take place, described automatic event detecting unit is sent to described collaborative command scheduling unit with the highway section and the lane information of the site of the accident, the fast road ramp entry signal lamp that described collaborative command scheduling unit controls is positioned at the upstream, highway section of the site of the accident is a red light, originally want that the vehicle that fast road ramp inlet by upstream, the site of the accident enters the through street can select other ring road that is positioned at downstream, scene of the accident inlet to enter this moment, when having avoided traffic events to take place, because of ring road inlet in upstream enters the situation that vehicle causes traffic to worsen.
(3) the city expressway automatic event based on the occupation rate data of the present invention detects and works in coordination with command dispatching system, and described automatic event detects and works in coordination with command dispatching system and also comprises a plurality of video monitor that are arranged on the described through street; Described automatic event detecting unit also is provided with described incident and studies and judges the video callback events affirmation module that module is connected, described video callback events confirms that module is connected respectively with a plurality of video monitor on the described through street, described video callback events confirms that module is used to adjust back the monitoring picture of described video monitor, by described monitored picture incident is confirmed, avoided described incident to study and judge the situation that erroneous judgement appears in module.
(4) the city expressway automatic event based on the occupation rate data of the present invention detects and works in coordination with command dispatching system, described collaborative command scheduling unit also comprises with described incident studies and judges the police strength command scheduling module that module is connected, described police strength command scheduling module is connected with the city traffic management department alarm and command system, assigns the policeman nearest apart from the spot to connect after incident is confirmed and deals with emergencies and dangerous situations.By described police strength command scheduling module is set, when traffic hazard takes place, can in time notify the policeman to reach the spot accident is handled.
(5) the city expressway automatic event based on the occupation rate data of the present invention detects and works in coordination with command dispatching system, and described video callback events confirms that module is connected with described police strength command scheduling module.Pass through this setup, when described video monitor breaks down, thereby when causing described video callback events to confirm that module can't obtain live view, can in time notify the policeman to reach the spot and confirm, avoid causing situation about can not in time handle traffic events because of video monitor breaks down.
Description of drawings
For technical solutions according to the invention are described better, the present invention will describe technique scheme in further detail in conjunction with following accompanying drawing.
Fig. 1 is the structural drawing that city expressway automatic event of the present invention detected and worked in coordination with command dispatching system;
Fig. 2 is the structural drawing that city expressway automatic event of the present invention detected and worked in coordination with the convertible mode of command dispatching system.
Embodiment
Embodiment 1
The city expressway automatic event based on the occupation rate data described in the present embodiment detects and works in coordination with command dispatching system as shown in Figure 1, comprise: be arranged on the magnitude of traffic flow detecting unit of a plurality of section parts of road, be used to detect the occupation rate on each track of each section part; Described magnitude of traffic flow detecting unit selects to be set to coil checker in the present embodiment, described detecting device is made up of with eight detector plates that are connected with described data processing plate bus a blocks of data disposable plates, and the hardware using Altera Cyclone Series FPGA EP1C6 of described detecting device is as processor; The described magnitude of traffic flow detecting unit that is arranged on different through streets section part is used for section vehicle flowrate and occupation rate are detected.
Be connected with the automatic event detecting unit with described magnitude of traffic flow detecting unit, described automatic event detecting unit is provided with incident and studies and judges module, and described incident is studied and judged module memory and contained threshold value; Described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, described incident studies and judges that module is calculated on each track, in per two adjacent sections, the difference of the difference of the absolute difference of upstream section and downstream section occupation rate, upstream and downstream section occupation rate and the ratio of upstream occupation rate, upstream and downstream section occupation rate is with the ratio of downstream occupation rate and compare with its corresponding threshold respectively, judges whether each highway section traffic events takes place; Selection is provided with the industrial computer mainboard that described automatic event detecting unit is AMD LX700 433MHz CPU, is provided with and studies and judges module based on the incident of occupation rate data, has 1 gigabit network interface, and 2 plates carry the RS485 interface.Wherein, described gigabit network interface is connected by the network interface with described collaborative command scheduling unit, by Ethernet realization event testing result by the data transmission of communication front-end equipment to centre management equipment; Described plate carries the RS485 interface in order to realize being connected of the two with the coil data acquisition unit of different section, and the magnitude of traffic flow and the occupation rate data transmission that the coil data acquisition unit are collected different section are studied and judged module to described incident based on the occupation rate data.
Be connected with collaborative command scheduling unit with described automatic event detecting unit, described collaborative command scheduling unit receives the result of determination of described automatic event detecting unit, and described collaborative command scheduling unit links to each other with track command lamp on the described through street and controls the work indicating status of described track command lamp according to the result of determination of described automatic event detecting unit.Described collaborative command scheduling unit is made up of server and machine box for server, server adopts two CPU, and CPU frequency is greater than 3.6GHz, and buffer memory is greater than 2M, support EM64T, support RAID, the DDR2 internal memory, internal memory is greater than 8G, its inner hard disk is no less than two, every hard-disk capacity is greater than 1TB, and has the hot-plug redundant power supply, supports several operation systems such as Linux Windows and supports telemanagement; Described machine box for server adopts two back plate design of full redundancy, network, SAN switch, administration module, power supply, fan are redundant configuration, power supply, fan are all supported hot plug and are built in the cabinet, the light-path diagnosis of server, processor, internal memory, power supply, fan, Switching Module, administration module, hard disk and all kinds of expansion cards is provided, has multipart failure prediction analysis ability such as hard disk, processor, fan and internal memory; The described machine box for server of described collaborative command scheduling unit is provided with external-connected port, and described external-connected port can carry out data transmission by Ethernet.
The course of work that the city expressway automatic event based on the occupation rate data described in the present embodiment detected and worked in coordination with command dispatching system is:
(1) be arranged on the magnitude of traffic flow detecting unit of each section part of road, detect the occupation rate data on each track of each section part, and the incident that is sent to described automatic event detecting unit is studied and judged module;
(2) described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, and the threshold value of calculating back and its storage inside according to the occupation rate data of per two adjacent sections on each track compares to judge whether each highway section traffic events takes place:
A. calculate on each track, in per two adjacent sections, the absolute difference of upstream section and downstream section occupation rate and absolute difference threshold ratio if the absolute difference of upstream and downstream section occupation rate surpasses described absolute difference threshold value, then continue step b;
B. further calculate the ratio of the difference of described upstream and downstream section occupation rate and upstream occupation rate and first proportion threshold value relatively,, then continue step c if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream;
C. the difference of further calculating occupation rate between the described upstream and downstream compares with the ratio and second proportion threshold value of downstream occupation rate, if the ratio of the difference of occupation rate and downstream occupation rate surpasses second proportion threshold value between the upstream and downstream, then continues steps d;
D. the difference of further calculating occupation rate between the described upstream and downstream and the ratio of upstream occupation rate and described first proportion threshold value relatively, if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream, then judging has accident to take place;
(3) studying and judging module when described incident judges when having traffic events to take place, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the track command lamp that described collaborative command scheduling unit controls control is positioned at upstream, track, place, the site of the accident is no through traffic state.
Embodiment 2
The city expressway automatic event based on the occupation rate data described in the present embodiment detects and works in coordination with command dispatching system as shown in Figure 2, compare with embodiment 1, difference with, collaborative command scheduling unit described in the present embodiment also links to each other with described fast road ramp porch signal lamp, controls the duty of described fast road ramp porch signal lamp.
In addition, automatic event described in the present embodiment detects and works in coordination with command dispatching system and also comprises a plurality of video monitor that are arranged on the described through street;
Described automatic event detecting unit also is provided with described incident and studies and judges the video callback events affirmation module that module is connected, described video callback events confirms that module is connected respectively with a plurality of video monitor on the described through street, and described video callback events affirmation module is used to adjust back the monitoring picture of described video monitor.
Described collaborative command scheduling unit also comprises police strength command scheduling module, and described police strength command scheduling module is connected with the city traffic management department alarm and command system, assigns the policeman nearest apart from the spot to connect after incident is confirmed and deals with emergencies and dangerous situations.
Described through street is provided with a plurality of variable information plates, described variable information plate is studied and judged module with described incident and is connected, when described incident is studied and judged module and is confirmed to have traffic events to take place, described incident is studied and judged module and is assigned instruction to the variable information plate that is positioned at upstream, the site of the accident, by described variable information plate issue event information.
Present embodiment also is provided with described video callback events and confirms that module is connected with described police strength command scheduling module.
The course of work that the city expressway automatic event based on the occupation rate data described in the present embodiment detected and worked in coordination with command dispatching system is:
(1) be arranged on the magnitude of traffic flow detecting unit of each section part of road, detect the occupation rate data on each track of each section part, and the incident that is sent to described automatic event detecting unit is studied and judged module;
(2) described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, and the threshold value of calculating back and its storage inside according to the occupation rate data of per two adjacent sections on each track compares to judge whether each highway section traffic events takes place:
A. calculate on each track, in per two adjacent sections, the absolute difference of upstream section and downstream section occupation rate and absolute difference threshold ratio if the absolute difference of upstream and downstream section occupation rate surpasses described absolute difference threshold value, then continue step b;
B. further calculate the ratio of the difference of described upstream and downstream section occupation rate and upstream occupation rate and first proportion threshold value relatively,, then continue step c if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream;
C. the difference of further calculating occupation rate between the described upstream and downstream compares with the ratio and second proportion threshold value of downstream occupation rate, if the ratio of the difference of occupation rate and downstream occupation rate surpasses second proportion threshold value between the upstream and downstream, then continues steps d;
D. the difference of further calculating occupation rate between the described upstream and downstream and the ratio of upstream occupation rate and described first proportion threshold value relatively, if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream, then judging has accident to take place;
(3) study and judge when described incident and assign instruction to described video callback events when module judges that a certain highway section has traffic events to take place and confirm module, the described video pictures that the traffic events highway section may take place of described video callback events affirmation module readjustment is confirmed accident
If described video callback events is confirmed module and is confirmed to have traffic events to take place, then described video callback events confirms that module is sent to described incident with result of determination and studies and judges module, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the track command lamp that described collaborative command scheduling unit controls is positioned at the upstream in track, place, the site of the accident is no through traffic state; Simultaneously, instruction is assigned to described police strength command scheduling module in described collaborative command scheduling unit, assigns the policeman nearest apart from the spot to connect and deals with emergencies and dangerous situations; Described incident is studied and judged module and is also assigned instruction to the variable information plate that is positioned at upstream, the site of the accident, by described variable information plate issue event information;
If described video callback events is confirmed module and confirms not have traffic events to take place that then described incident is studied and judged module and no longer sent information to described collaborative command scheduling unit.
When described video callback events confirms that module can't be called the video information that the traffic events highway section may take place, described video callback events affirmation module sends instruction to described police strength command scheduling module, assigns the policeman arrival nearest apart from the spot that the traffic events highway section may take place and carries out the scene affirmation.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give to all embodiments exhaustive, and the conspicuous variation of being extended out thus or the change still be among the protection domain of the invention.
Claims (10)
1. one kind is detected based on the city expressway automatic event of occupation rate data and works in coordination with command dispatching system, comprising:
Be arranged on the magnitude of traffic flow detecting unit of a plurality of section parts of road, be used to detect the occupation rate on each track of each section part;
With the automatic event detecting unit that described magnitude of traffic flow detecting unit is connected, described automatic event detecting unit is provided with incident and studies and judges module, and described incident is studied and judged module memory and contained threshold value; Described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, described incident studies and judges that module is calculated on each track, in per two adjacent sections, the difference of the difference of the absolute difference of upstream section and downstream section occupation rate, upstream and downstream section occupation rate and the ratio of upstream occupation rate, upstream and downstream section occupation rate is with the ratio of downstream occupation rate and compare with its corresponding threshold respectively, judges whether each highway section traffic events takes place;
It is characterized in that,
Be connected with collaborative command scheduling unit with described automatic event detecting unit, described collaborative command scheduling unit receives the result of determination that described incident is studied and judged module, and described collaborative command scheduling unit links to each other with track command lamp on the described through street and controls the work indicating status of described track command lamp according to the result of determination of described automatic event detecting unit.
2. the city expressway automatic event based on the occupation rate data according to claim 1 detects and works in coordination with command dispatching system, it is characterized in that, described collaborative command scheduling unit also links to each other with described fast road ramp porch signal lamp, controls the duty of described fast road ramp porch signal lamp.
3. the city expressway automatic event based on the occupation rate data according to claim 1 and 2 detects and works in coordination with command dispatching system, it is characterized in that described automatic event detects and works in coordination with command dispatching system and also comprises a plurality of video monitor that are arranged on the described through street;
Described automatic event detecting unit also is provided with described incident and studies and judges the video callback events affirmation module that module is connected, described video callback events confirms that module is connected respectively with a plurality of video monitor on the described through street, and described video callback events affirmation module is used to adjust back the monitoring picture of described video monitor.
4. the city expressway automatic event based on the occupation rate data according to claim 3 detects and works in coordination with command dispatching system, it is characterized in that, described collaborative command scheduling unit also comprises police strength command scheduling module, described police strength command scheduling module is connected with the city traffic management department alarm and command system, assigns the policeman nearest apart from the spot to connect after incident is confirmed and deals with emergencies and dangerous situations.
5. the city expressway automatic event based on the occupation rate data according to claim 4 detects and works in coordination with command dispatching system, it is characterized in that, described video callback events confirms that module is connected with described police strength command scheduling module.
6. what be used for that the arbitrary described automatic event of claim 1-5 detects and work in coordination with command dispatching system detects and works in coordination with the method for command scheduling based on the city expressway automatic event of occupation rate data, and it comprises the steps:
(1) be arranged on the magnitude of traffic flow detecting unit of each section part of road, detect the occupation rate data on each track of each section part, and the incident that is sent to described automatic event detecting unit is studied and judged module;
(2) described incident is studied and judged the occupation rate data that module receives each section of described magnitude of traffic flow detecting unit transmission, and the threshold value of calculating back and its storage inside according to the occupation rate data of per two adjacent sections on each track compares to judge whether each highway section traffic events takes place:
A. calculate on each track, in per two adjacent sections, the absolute difference of upstream section and downstream section occupation rate and absolute difference threshold ratio if the absolute difference of upstream and downstream section occupation rate surpasses described absolute difference threshold value, then continue step b;
B. further calculate the ratio of the difference of described upstream and downstream section occupation rate and upstream occupation rate and first proportion threshold value relatively,, then continue step c if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream;
C. the difference of further calculating occupation rate between the described upstream and downstream compares with the ratio and second proportion threshold value of downstream occupation rate, if the ratio of the difference of occupation rate and downstream occupation rate surpasses second proportion threshold value between the upstream and downstream, then continues steps d;
D. the difference of further calculating occupation rate between the described upstream and downstream and the ratio of upstream occupation rate and described first proportion threshold value relatively, if the ratio of the difference of occupation rate and upstream occupation rate surpasses described first proportion threshold value between the upstream and downstream, then judging has accident to take place;
(3) studying and judging module when described incident judges when having traffic events to take place, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the track command lamp that described collaborative command scheduling unit controls is positioned at upstream, track, place, the site of the accident is no through traffic state.
7. the method that detects and work in coordination with command scheduling based on the city expressway automatic event of occupation rate data according to claim 7, it is characterized in that, in step (3), when described incident is studied and judged module and is confirmed to have traffic events to take place, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the fast road ramp entry signal lamp that described collaborative command scheduling unit controls is positioned at the upstream, highway section of the site of the accident is a red light.
8. the method that detects and work in coordination with command scheduling based on the city expressway automatic event of occupation rate data according to claim 6, it is characterized in that, in step (3), study and judge when described incident and to assign instruction to described video callback events when module judges that a certain highway section has traffic events to take place and confirm module, the described video pictures that the traffic events highway section may take place of described video callback events affirmation module readjustment is confirmed accident
If described video callback events is confirmed module and is confirmed to have traffic events to take place, then described video callback events confirms that module is sent to described incident with result of determination and studies and judges module, described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, and the track command lamp that described collaborative command scheduling unit controls is positioned at the upstream in track, place, the site of the accident is no through traffic state;
If described video callback events is confirmed module and confirms not have traffic events to take place that then described incident is studied and judged module and no longer sent information to described collaborative command scheduling unit.
9. according to claim 7 or the 8 described methods that detect and work in coordination with command scheduling based on the city expressway automatic event of occupation rate data, it is characterized in that, in step (3), described incident is studied and judged module the highway section and the lane information of the site of the accident is sent to described collaborative command scheduling unit, instruction is assigned to described police strength command scheduling module in described collaborative command scheduling unit, assigns the policeman nearest apart from the spot to connect and deals with emergencies and dangerous situations.
10. the method that detects and work in coordination with command scheduling based on the city expressway automatic event of occupation rate data according to claim 9, it is characterized in that, when described video callback events confirms that module can't be called the video information that the traffic events highway section may take place, described video callback events affirmation module sends instruction to described police strength command scheduling module, assigns the policeman arrival nearest apart from the spot that the traffic events highway section may take place and carries out the scene affirmation.
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