CN104658279A - Real-time optimization signal control method and system based on video traffic state monitoring - Google Patents
Real-time optimization signal control method and system based on video traffic state monitoring Download PDFInfo
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- CN104658279A CN104658279A CN201510085654.3A CN201510085654A CN104658279A CN 104658279 A CN104658279 A CN 104658279A CN 201510085654 A CN201510085654 A CN 201510085654A CN 104658279 A CN104658279 A CN 104658279A
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Abstract
The invention provides a real-time optimization signal control method and system based on video traffic state monitoring. According to the method and the system, the problems of high detecting coil damage rate, inflexible setting and poor data reliability of traditional intersection actuated signal control can be solved. The method comprises steps as follows: a camera is erected above an entrance driveway of an intersection and used for collecting real-time video images of an entrance section of each guide driveway of the entrance driveway; a video detecting and processing unit is used for setting virtual detecting coils on the real-time video images and detecting the traffic state in the entrance driveway through the virtual detecting coils; a logical analysis unit is used for logically analyzing the traffic state in the entrance driveway, and a control adjustment signal is generated according to a logical analysis result and is transmitted to a traffic signal instrument; the traffic signal instrument is used for controlling or adjusting a timing plan of the entrance driveway according to the control adjustment signal.
Description
Technical field
The present invention relates to road traffic signal control technology field, especially relate to the road traffic signal control technology field detected based on video, be specially and pass through the real-time optimization signal control method of status monitoring and system based on video.
Background technology
In recent years, for cracking the traffic jam issue that increasingly sharpens that city faces, construction and the application of intelligent transportation system have all been carried out in various places, and the effect of traffic signal control system also draws attention gradually, on alleviation intersection blocks up, played effect.But, due to many reasons, the intersection in China's major part city all adopts the control model of single-point, fixed cycle, fixing timing, along with the fast development of urban society's economy, increasing sharply of vehicle guaranteeding organic quantity, this control model more and more cannot adapt to the needs of reality.Therefore, no matter be newly built city district, or reconstruction of the old city town, traffic signalization is all listed in an important ring wherein, particularly has the real-time actuated signal control system of signal adjustment function, more becomes the effective means that solving road crossing blocks up.
At present, mostly traditional intersection actuated signal control is the traffic parameter gathered based on magnetic test coil, adjusts crossing vehicle clearance phases-time in real time according to traffic parameter situation of change.But the traffic information collection mode based on coil section can not meet the demand of traffic administration and control, its exist magnetic test coil spoilage high, the problems such as dumb, data reliability is poor are set.
Summary of the invention
For the problems referred to above, the invention provides and to pass through the real-time optimization signal control method of status monitoring and system based on video, its can solve the magnetic test coil spoilage that conventional cross mouth actuated signal control exists high, dumb, that data reliability is poor problem is set.
Pass through based on video the real-time optimization signal control method of status monitoring, it is characterized in that: above the entrance driveway of crossing, set up video camera, and the view finder of described video camera is towards the vehicle sailing described entrance driveway into, the real time video image of the entrance of each guided vehicle road in entrance driveway described in described camera acquisition, video check processing unit is set virtual detection coil and is detected the traffic behavior in described entrance driveway by described virtual detection coil on described real time video image, logic analysis unit carries out logic analysis to the traffic behavior in described entrance driveway and generates according to logic analysis result controlling adjustment signal, described logic analysis unit sends described control adjustment signal to traffic signaling equipment, described traffic signaling equipment controls according to the timing scheme of described control adjustment signal to the traffic lights of described entrance driveway or adjusts.
It is further characterized in that:
Described virtual detection coil comprises lane detection coil, vehicle passing detection coil and vehicle and there is magnetic test coil, described lane detection coil covers all complete described guided vehicle roads in described real time video image, and each guided vehicle road in described lane detection coil is respectively arranged with described vehicle passing detection coil along the forward position of vehicle heading, rearward position, vehicle exists magnetic test coil;
Described video check processing unit by described lane detection coil detect in real time each guided vehicle road in described entrance driveway traffic flow modes, sailed into by described vehicle passing detection Coil Detector the vehicle of each guided vehicle road in described entrance driveway time headway, to be there is the occupied state that vehicle that magnetic test coil detects each described guided vehicle road exists magnetic test coil by described vehicle;
Described logic analysis unit determines whether to adjust the traffic signal timing scheme of each bar guided vehicle road according to described traffic flow modes, when judging not need to adjust traffic signal timing scheme, described logic analysis unit sends the control signal of not carrying out traffic signal timing project setting to described traffic signal controlling machine, namely described traffic signaling equipment controls traffic lights and runs by the traffic signal timing scheme preset, when judging to need to adjust the signal time distributing conception of a certain bar guided vehicle road, according to the time headway of this guided vehicle road, described logic analysis unit judges whether this guided vehicle road exists waste green light phase according to described waste green light phase after green light phase place starts, and this guided vehicle road starts determine the traffic signal timing Adjusted Option of this guided vehicle road with the occupied state that rear vehicle exists magnetic test coil and send traffic signal timing project setting signal to traffic signaling equipment in green light phase place, the green light phase signal that described traffic signaling equipment controls this guided vehicle road according to described Adjusted Option extends or terminates.
It is further characterised in that:
Whether described video check processing unit is judged described entrance driveway traffic flow modes by vehicle queue's possession state by detecting described lane detection coil in real time, if there is not vehicle queue's phenomenon in the arbitrary guided vehicle road in described lane detection coil, then judge that this guided vehicle road is in smooth and easy traffic flow modes, does not need to adjust the signal time distributing conception of guided vehicle road arbitrary described in this; If there is vehicle queue's phenomenon in the arbitrary guided vehicle road in described lane detection coil, then the side's of judgement guided vehicle road be in queuing traffic flow modes, Row sum-equal matrix when needing to guided vehicle road arbitrary described in this signal time distributing conception;
Described logic analysis unit judges whether there is waste green light phase in each guided vehicle road of described entrance driveway according to described time headway, the time headway t of collection is compared with the safe headway T0 preset, as t≤T0, judge that vehicle in described each guided vehicle road does not exist waste green light phase as compact train tracing model, then judge that as t > T0 vehicle in described each guided vehicle road is as discrete, waste green light phase;
According to arbitrary guided vehicle road concrete steps of Row sum-equal matrix when the signal time distributing conception of the occupied state that the vehicle that its green light phase place starts later described waste green light phase and this guided vehicle road exists magnetic test coil to this arbitrary guided vehicle road be:
(1) when t≤T0 state, when detecting that the vehicle of this arbitrary guided vehicle road after green light phase place starts belonging to it exists magnetic test coil and occupied by vehicle, then described logic analysis unit judges to have in this guided vehicle road vehicle parking to wait for or is in slow current state and extends signal to the green light phase time that described traffic signaling equipment exports this guided vehicle road; When detecting that this arbitrary vehicle exists magnetic test coil and do not occupied by vehicle, then continuous detecting three sampling time intervals, if vehicle described in this exists magnetic test coil and all occupied by vehicle in described three sampling time intervals, the green light phase time that described logic analysis unit exports this guided vehicle road to described traffic signaling equipment extends signal, if vehicle described in this exists magnetic test coil and do not occupied by vehicle in described three sampling time intervals always, described logic analysis unit exports the green light phase time end signal of this guided vehicle road to described traffic signaling equipment;
(2) when t > T0 state, when detecting that the described vehicle of this arbitrary guided vehicle road after green light phase place starts belonging to it exists magnetic test coil and do not occupied by vehicle, then described logic analysis unit judges to wait for without vehicle parking in the guided vehicle road that this vehicle exists belonging to magnetic test coil or slowly pass through and exports the green light phase place end signal of this guided vehicle road to described traffic signaling equipment, when detecting that the described vehicle of this arbitrary guided vehicle road after green light phase place starts belonging to it exists magnetic test coil and occupied by vehicle, then continuous detecting three sampling interval duration, occupied by vehicle if these three sampling interval duration this vehicle interior exists magnetic test coil, the green light phase time that described logic analysis unit exports this guided vehicle road to described traffic signaling equipment extends signal always, do not occupied by vehicle if these three sampling interval duration this vehicle interior exists magnetic test coil, described logic analysis unit exports the green light phase time end signal of this guided vehicle road to described traffic signaling equipment always,
Described green light phase time extends and adopts the mode of incremented in small steps until described green light phase time reaches default green light maximum phase time, subsequently green light phase place terminates, and described green light finish time must after the minimum green time of the complete phase place of system cloud gray model;
Described green light phase time extends and increases progressively 2 seconds at every turn.
Pass through based on video the real-time optimization whistle control system of status monitoring, it comprises traffic signaling equipment, described traffic signaling equipment is communicated to connect by communication module and traffic control center, it is characterized in that: it also comprises the video detector for realizing real-time actuated signal control function, electricly connected by optical cable between described video detector and described traffic signaling equipment, described video detector comprises video camera, video check processing unit and logic analysis unit, above the entrance driveway that described camera pedestal is located at crossing and the view finder of described video camera towards the vehicle sailing described entrance driveway into, described video camera is for gathering the real time video image of the entrance of each guided vehicle road in described entrance driveway, described video check processing unit carries out the setting of virtual detection coil to real time video image and detects described entrance driveway traffic behavior in real time by described virtual detection coil, described logic analysis unit carries out logic analysis to described entrance driveway traffic behavior and adjusts signal according to logic analysis result to described traffic signaling equipment pipage control, described traffic signaling equipment to control this crossroad traffic signal lamp according to described control adjustment signal or adjusts.
It is further characterized in that:
Described virtual detection coil comprises lane detection coil, vehicle passing detection coil and vehicle and there is magnetic test coil, described lane detection coil covers all complete described guided vehicle roads in described real time video image, and each guided vehicle road in described lane detection coil is respectively arranged with described vehicle passing detection coil along the forward position of vehicle heading, rearward position, vehicle exists magnetic test coil;
Described video check processing unit by described lane detection coil detect in real time each guided vehicle road in described entrance driveway traffic flow modes, sailed into by described vehicle passing detection Coil Detector the vehicle of each guided vehicle road in described entrance driveway time headway, to be there is the occupied state that vehicle that magnetic test coil detects each described guided vehicle road exists magnetic test coil by described vehicle;
Described logic analysis unit determines whether to adjust the traffic signal timing scheme of each bar guided vehicle road according to described traffic flow modes, when judging not need to adjust traffic signal timing scheme, described traffic signaling equipment controls traffic lights and runs by the traffic signal timing scheme preset, when judging to need to adjust the signal time distributing conception of a certain bar guided vehicle road, according to the time headway of this guided vehicle road, described logic analysis unit judges whether this guided vehicle road exists waste green light phase according to described waste green light phase after green light phase place starts, and this guided vehicle road starts determine the traffic signal timing Adjusted Option of this guided vehicle road with the occupied state that rear vehicle exists magnetic test coil and send traffic signal timing project setting signal to traffic signaling equipment in green light phase place, the green light phase signal that described traffic signaling equipment controls this guided vehicle road according to described Adjusted Option extends or terminates,
Described video detector is set up on the electronic eye used for catching red light runner mounting rod of described entrance driveway, and the distance L1 of described electronic eye used for catching red light runner mounting rod and described entrance driveway stop line is 15 meters ~ 20 meters; Region between the actual area of the corresponding described entrance driveway of described lane detection coil and described electronic eye used for catching red light runner mounting rod is that the video camera of described video detector causes the region that cannot detect due to mounted angle, and the length L2 in this region is 10 meters ~ 15 meters; The length L3 of the corresponding described entrance driveway actual area of described lane detection coil is 30 meters ~ 50 meters.
Beneficial effect of the present invention is: it is by real time video image in the camera acquisition entrance driveway be erected at above crossing inlet road, video check processing unit carries out the setting of virtual detection coil and the traffic behavior detected by virtual detection coil in entrance driveway to real time video image, logic analysis unit carries out logic analysis to the traffic behavior in entrance driveway and sends control adjustment signal according to logic analysis result to traffic signaling equipment, traffic signaling equipment controls according to the timing scheme of control adjustment signal to the traffic lights of entrance driveway or adjusts, thus realize the target of the real-time actuated signal control of intersection single-point, it detects based on video, responds to control according to intersection real-time traffic states in real time to traffic lights, be based upon video and detect the more traditional actuated signal control system gathered based on magnetic test coil of actuated signal control system on basis, have sensing range large, arrange flexible, convenient for installation and maintenance, detected parameters is many and detect the advantages such as data are accurate.
Accompanying drawing explanation
Fig. 1 the present invention is based on video to pass through the real-time optimization signal control method process flow diagram of status monitoring;
Fig. 2 the present invention is based on video to pass through the topology diagram of real-time optimization whistle control system of status monitoring;
Fig. 3 be the embodiment of the present invention based on video pass through status monitoring real-time optimization whistle control system in video camera, virtual detection coil layout.
Embodiment
See Fig. 1, above the entrance driveway of intersecting roads, set up video camera 101 and the view finder of video camera 101 towards the vehicle sailing entrance driveway into, video camera 101 gathers the real time video image of the entrance of each guided vehicle road in entrance driveway, video check processing unit 102 sets virtual detection coil on real time video image, comprise lane detection coil 201, there is magnetic test coil 203 in vehicle passing detection coil 202 and vehicle, lane detection coil 201 covers guided vehicle road complete in real time video image, each guided vehicle road in lane detection coil 201 is along the forward position of vehicle heading, rearward position is respectively arranged with vehicle passing detection coil 202, there is magnetic test coil 203 in vehicle, video check processing unit 102 detects the traffic flow modes of each guided vehicle road in entrance driveway in real time by lane detection coil 201, the time headway sailing the vehicle of each guided vehicle road in entrance driveway into is detected by vehicle passing detection coil 202, the occupied state that vehicle that magnetic test coil 203 detects each guided vehicle road exists magnetic test coil is there is by vehicle,
When video check processing unit 102 detects that the guided vehicle road in lane detection coil 201 is not occupied by vehicle queue, then logic analysis unit 103 judges this moment as smooth and easy traffic flow modes, and logic analysis unit 103 carries the control signal of not carrying out traffic signal timing project setting to traffic signaling equipment 30, traffic signaling equipment 30 controls traffic lights 70 to be continued to carry out vehicle clearance by default timing scheme;
When video check processing unit 102 detects that in lane detection coil 203 scope, a certain guided vehicle road is occupied by vehicle queue, this guided vehicle road is in queuing congestion status this moment then to have logic analysis unit 103 to judge, during the vehicle headstock that video check processing unit 102 is collected by vehicle passing detection coil 202 by logic analysis unit 103, square t compares with the safe headway T0 preset:
As t≤T0, judge that vehicle in this guided vehicle road does not exist waste green light phase as compact train tracing model, whether the vehicle that video check processing unit 102 detects this guided vehicle road exists magnetic test coil 203 is occupied, occupied by vehicle if the vehicle of this guided vehicle road exists magnetic test coil 203, then logic analysis unit 103 judges to have in this guided vehicle road vehicle parking to wait for or is in slow current state and extends signal to the green light phase time that traffic signaling equipment exports this guided vehicle road, when detecting that the vehicle of this guided vehicle road exists magnetic test coil 203 and do not occupied by vehicle, then video check processing unit 102 continuous detecting three sampling time intervals, all occupied by vehicle if three sampling time intervals these vehicles interior exist magnetic test coil 203, the green light phase time that logic analysis unit 103 exports this guided vehicle road to traffic signaling equipment 30 extends signal, the green light phase time that traffic signaling equipment 30 controls this guided vehicle road extends, do not occupied by vehicle if three sampling time intervals these vehicles interior exist magnetic test coil 203, logic analysis unit 103 exports the green light phase time end signal of this guided vehicle road to traffic signaling equipment 30 always, the green light phase time that traffic signaling equipment 30 controls this guided vehicle road terminates,
As t > T0, then logic analysis unit 103 judges that vehicle in this guided vehicle road is as discrete, waste green light phase, when video check processing unit 102 detects that the vehicle of this guided vehicle road exists magnetic test coil and do not occupied by vehicle, then logic analysis unit 103 judges that this vehicle guided vehicle road existed belonging to magnetic test coil is in without vehicle parking wait or slow current state and exports the green light phase place end signal of this guided vehicle road to traffic signaling equipment 30, and the green light phase place that traffic signaling equipment 30 controls this guided vehicle road terminates, when video check processing unit 102 detects that the vehicle of this guided vehicle road exists magnetic test coil 103 and occupied by vehicle, then video check processing unit 102 continuous detecting three sampling interval duration, occupied by vehicle if these three sampling interval duration this vehicle interior exists magnetic test coil 103, the green light phase time that logic analysis unit 103 exports this guided vehicle road to traffic signaling equipment 30 extends signal always, the green light phase time that traffic signaling equipment 30 controls this guided vehicle road extends, do not occupied by vehicle if these three sampling interval duration this vehicle interior exists magnetic test coil 203, logic analysis unit 103 exports the green light phase place end signal of this guided vehicle road to traffic signaling equipment 30 always.
Green light phase time extend adopt incremented in small steps mode until green light phase time reaches default green light maximum phase time, subsequently green light phase place terminates, and green light finish time must after the minimum green time of the complete phase place of system cloud gray model; Green light phase time extends and increases progressively 2 seconds at every turn.
Pass through based on video the real-time optimization whistle control system of status monitoring, see Fig. 2 and Fig. 3, it comprises traffic signaling equipment 30 and the video detector 10 for realizing real-time actuated signal control function, electricly connected by optical cable between video detector 10 and traffic signaling equipment 30, traffic signaling equipment 30 is communicated to connect with traffic control center 60 by communication module 50, video detector 10 comprises video camera 101, video check processing unit 102 and logic analysis unit 103, above the entrance driveway that video camera 101 is set up in intersecting roads and the view finder of video camera towards the vehicle sailing entrance driveway into, real time video image in the entrance driveway that video check processing unit 102 pairs of video cameras 101 are taken carries out the setting of virtual detection coil 20 and detects entrance driveway traffic behavior in real time by virtual detection coil 20, logic analysis unit 103 pairs of entrance driveway traffic behaviors carry out logic analysis and adjust signal according to logic analysis result to traffic signaling equipment 30 pipage control, traffic signaling equipment 30 controls according to control adjustment signal this crossroad traffic signal lamp 70 or adjusts.Under networking control state, traffic control center 60 is transmitted control signal to traffic signaling equipment 30 by communication module 50 according to the real-time traffic stream mode of road junction, and whether traffic signaling equipment 30 controls this crossing according to this control signal carries out real-time actuated signal control or perform fixed signal controlling.
Virtual detection coil 20 comprises lane detection coil 201, vehicle passing detection coil 202 and vehicle and there is magnetic test coil 203, lane detection coil 201 covers all complete guided vehicle roads in real time video image, in the present embodiment, lane detection coil 201 covers four guided vehicle roads in real time video image, and each guided vehicle road in lane detection coil 201 is respectively arranged with vehicle passing detection coil 202 along the forward position of vehicle heading, rearward position, vehicle exists magnetic test coil 203; Video check processing unit 102 by lane detection coil 201 detect in real time each guided vehicle road in entrance driveway traffic flow modes, by vehicle passing detection coil 202 detect sail the vehicle of each guided vehicle road in entrance driveway into time headway t, to be there is the occupied state that vehicle that magnetic test coil 203 detects each guided vehicle road exists magnetic test coil by vehicle;
Logic analysis unit 103 determines whether to adjust the traffic signal timing scheme of each bar guided vehicle road according to traffic flow modes, when judging not need to adjust traffic signal timing scheme, traffic signaling equipment 30 controls traffic lights 70 and runs by the traffic signal timing scheme preset, when judging to adjust the signal time distributing conception of a certain bar guided vehicle road, logic analysis unit 103 judges whether to exist in this guided vehicle road waste green light phase according to the time headway t of this guided vehicle road and according to waste green light phase, and the vehicle of this guided vehicle road occupied state that there is magnetic test coil 203 is determined the traffic signal timing Adjusted Option of this guided vehicle road and sends traffic signal timing project setting signal to traffic signaling equipment, the signal lamp green modulating signal that traffic signaling equipment controls this guided vehicle road according to described Adjusted Option extends or terminates,
Video detector 10 is set up on the electronic eye used for catching red light runner mounting rod 40 of entrance driveway, and electronic eye used for catching red light runner mounting rod 40 is 15 meters ~ 20 meters with the distance L1 of entrance driveway stop line; Region between the actual area of the corresponding entrance driveway of lane detection coil 201 and electronic eye used for catching red light runner mounting rod is that the video camera 101 of video detector causes the region that cannot detect due to mounted angle, and the length L2 in this region is 10 meters ~ 15 meters; The length L3 of the corresponding entrance driveway actual area of lane detection coil 201 is 30 meters ~ 50 meters.
Claims (10)
1. pass through based on video the real-time optimization signal control method of status monitoring, it is characterized in that: above the entrance driveway of crossing, erection is used for the video camera of collecting device, gather the real time video image of each guided vehicle road in described entrance driveway porch, and described video camera is towards the vehicle sailing described entrance driveway into, video check processing unit sets virtual detection coil on described real time video image, and the traffic behavior detected by described virtual detection coil in described entrance driveway, logic analysis unit carries out logic analysis to the traffic behavior in described entrance driveway, and generate control adjustment signal according to logic analysis result, described logic analysis unit sends described control adjustment signal to traffic signaling equipment, described traffic signaling equipment controls according to the timing scheme of described control adjustment signal to the traffic lights of described entrance driveway or adjusts.
2. the real-time optimization signal control method of the status monitoring that passes through based on video according to claim 1, it is characterized in that: described virtual detection coil comprises lane detection coil, vehicle passing detection coil and vehicle and there is magnetic test coil, described lane detection coil covers all complete described guided vehicle roads in described real time video image, and each guided vehicle road in described lane detection coil is respectively arranged with described vehicle passing detection coil along the forward position of vehicle heading, rearward position, vehicle exists magnetic test coil; Described video check processing unit by described lane detection coil detect in real time each guided vehicle road in described entrance driveway traffic flow modes, sailed into by described vehicle passing detection Coil Detector the vehicle of each guided vehicle road in described entrance driveway time headway, to be there is the occupied state that vehicle that magnetic test coil detects each described guided vehicle road exists magnetic test coil by described vehicle.
3. the real-time optimization signal control method of the status monitoring that passes through based on video according to claim 2, it is characterized in that: described logic analysis unit determines whether to adjust the traffic signal timing scheme of each bar guided vehicle road according to described traffic flow modes, when judging not need to adjust traffic signal timing scheme, described logic analysis unit sends the control signal of not carrying out traffic signal timing project setting to described traffic signal controlling machine, namely described traffic signaling equipment controls traffic lights and runs by the traffic signal timing scheme preset, when judging to need to adjust the signal time distributing conception of a certain bar guided vehicle road, described logic analysis unit judges whether there is waste green light phase in this guided vehicle road according to the time headway of this guided vehicle road, and according to described waste green light phase, and the vehicle of this guided vehicle road occupied state that there is magnetic test coil determines the traffic signal timing Adjusted Option to this guided vehicle road, and send traffic signal timing project setting signal to traffic signaling equipment, the signal lamp green modulating signal that described traffic signaling equipment controls this guided vehicle road according to described Adjusted Option extends or terminates.
4. the real-time optimization signal control method of the status monitoring that passes through based on video according to claim 2, it is characterized in that: whether described video check processing unit is judged described entrance driveway traffic flow modes by vehicle queue's possession state by detecting described lane detection coil in real time, if there is not vehicle queue's phenomenon in the arbitrary guided vehicle road in described surveyed area, be then judged to be smooth and easy traffic flow modes, do not need to adjust the signal time distributing conception of guided vehicle road arbitrary described in this; If there is vehicle queue's phenomenon in the arbitrary guided vehicle road in described surveyed area, then Row sum-equal matrix during the signal time distributing conception be judged to be queuing traffic flow modes, needing to guided vehicle road arbitrary described in this.
5. the real-time optimization signal control method of the status monitoring that passes through based on video according to claim 2, it is characterized in that: described logic analysis module judges whether there is waste green light phase in each guided vehicle road of described entrance driveway according to described time headway, the time headway t of collection is compared with the safe headway T0 preset, as t≤T0, judge that vehicle in described each guided vehicle road does not exist waste green light phase as compact train tracing model, then judge that as t > T0 vehicle in described each guided vehicle road is as discrete, waste green light phase.
6. the real-time optimization signal control method of the status monitoring that passes through based on video according to claim 5, is characterized in that: during the signal time distributing conception of the occupied state that there is magnetic test coil according to the described waste green light phase of arbitrary guided vehicle road and the vehicle of this guided vehicle road to this arbitrary guided vehicle road, the concrete steps of Row sum-equal matrix are:
(1) when t≤T0 state, when detecting that the described vehicle of this arbitrary guided vehicle road exists magnetic test coil and occupied by vehicle, then described logic analysis unit judges to have in this guided vehicle road vehicle parking to wait for or is in slow current state and extends signal to the green light phase time that described traffic signaling equipment exports this guided vehicle road; When detecting that this arbitrary vehicle exists magnetic test coil and do not occupied by vehicle, then continuous detecting three sampling time intervals, if vehicle described in this exists magnetic test coil and all occupied by vehicle in described three sampling time intervals, the green light phase time that described logic analysis unit exports this guided vehicle road to described teleseme extends signal, if vehicle described in this exists magnetic test coil and do not occupied by vehicle in described three sampling time intervals always, described logic analysis unit exports the green light phase place end signal of this guided vehicle road to described teleseme;
(2) when t > T0 state, when detecting that arbitrary described vehicle exists magnetic test coil and do not occupied by vehicle, then described logic analysis unit judges to wait for without vehicle parking in the guided vehicle road that this vehicle exists belonging to magnetic test coil or slowly pass through and exports the green light phase place end signal of this guided vehicle road to described traffic signaling equipment, when detecting that arbitrary described vehicle exists magnetic test coil and occupied by vehicle, then continuous detecting three sampling interval duration, occupied by vehicle if these three sampling interval duration this vehicle interior exists magnetic test coil, the green light phase time that described logic analysis unit exports this guided vehicle road to described traffic signaling equipment extends signal always, do not occupied by vehicle if these three sampling interval duration this vehicle interior exists magnetic test coil, described logic analysis unit exports the green light phase place end signal of this guided vehicle road to described traffic signaling equipment always.
7. according to the real-time optimization signal control method of the described status monitoring that passes through based on video arbitrary in claim 3 ~ 6, it is characterized in that: described green light phase time extends and adopts the mode of incremented in small steps until described green light phase time reaches default green light maximum phase time, subsequently green light phase place terminates, and described green light finish time must after the minimum green time of the complete phase place of system cloud gray model.
8. pass through based on video the real-time optimization whistle control system of status monitoring, it comprises traffic signaling equipment, described traffic signaling equipment is communicated to connect by communication module and traffic control center, it is characterized in that: it also comprises the video detector for realizing real-time actuated signal control function, electricly connected by optical cable between described video detector and described traffic signaling equipment, described video detector comprises video camera, video check processing unit and logic analysis unit, above the entrance driveway that described camera pedestal is located at crossing and the view finder of described video camera towards the vehicle sailing described entrance driveway into, real time video image in the entrance driveway that described video check processing unit is taken described video camera carries out the setting of virtual detection coil and detects described entrance driveway traffic behavior in real time by described virtual detection coil, described logic analysis unit carries out logic analysis to described entrance driveway traffic behavior and adjusts signal according to logic analysis result to described traffic signaling equipment pipage control, described traffic signaling equipment to control this crossroad traffic signal lamp according to described control adjustment signal or adjusts.
9. the real-time optimization whistle control system of the status monitoring that passes through based on video according to claim 8, it is characterized in that: described virtual detection coil comprises lane detection coil, vehicle passing detection coil and vehicle and there is magnetic test coil, described lane detection coil covers all complete described guided vehicle roads in described real time video image, and each guided vehicle road in described lane detection coil is respectively arranged with described vehicle passing detection coil along the forward position of vehicle heading, rearward position, vehicle exists magnetic test coil; Described video check processing unit by described lane detection coil detect in real time each guided vehicle road in described entrance driveway traffic flow modes, sailed into by described vehicle passing detection Coil Detector the vehicle of each guided vehicle road in described entrance driveway time headway, to be there is the occupied state that vehicle that magnetic test coil detects each described guided vehicle road exists magnetic test coil by described vehicle.
10. the real-time optimization whistle control system of the status monitoring that passes through based on video according to claim 9, it is characterized in that: described video detector is set up on the electronic eye used for catching red light runner mounting rod of described entrance driveway, the distance L1 of described electronic eye used for catching red light runner mounting rod and described entrance driveway stop line is 15 meters ~ 20 meters; Region between the actual area of the corresponding described entrance driveway of described lane detection coil and described electronic eye used for catching red light runner mounting rod is that the video camera of described video detector causes the region that cannot detect due to mounted angle, and the length L2 in this region is 10 meters ~ 15 meters; The length L3 of the corresponding described entrance driveway actual area of described lane detection coil is 30 meters ~ 50 meters.
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