CN105761509A - Traffic control system and method for pedestrians to safely cross street - Google Patents
Traffic control system and method for pedestrians to safely cross street Download PDFInfo
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Abstract
The invention relates to a traffic control system for pedestrians to safely cross a street. The system comprises a pedestrian detection device for detecting whether a pedestrian passes through the zebra crossing or not; a road traffic signal controller used for adjusting the output signal of a pedestrian phase signal lamp according to the detection signal of the pedestrian detection device; a red light detection device used for detecting the red light signal of the pedestrian phase signal lamp; a voice alarm and a plurality of pedestrian phase signal lamps. The pedestrian detection device is composed of pedestrian video detectors and the pedestrian video detectors are arranged at a distance of one lane from the two ends of the zebra crossing, respectively. The invention also relates to a traffic control method for pedestrians to safely cross the street. Based on the traffic control system and the traffic control method for pedestrians to safely cross the street, the behaviors of pedestrians are detected and then the phase release time for pedestrians is lengthened or shortened. Therefore, the intersection traffic capacity is improved and the safety of pedestrians to cross the street is ensured. Meanwhile, the functions of voice warning and capturing a pedestrian to running the red light are realized. Therefore, the system and the method are wide in application range.
Description
Technical field
The present invention relates to technical field of transportation, particularly relate to electronic communication, specifically refer to a kind of pedestrains safety and cross traffic control system and the method in street.
Background technology
Along with the development of Video Detection and analytical technology, in many equipment such as electronic police equipment, tollgate devices, monitoring device, obtain very big use.Current video detection technology controls technology with signal and combines less, is mainly used in two aspects:
One, refers to shown in Fig. 1, and pedestrian's video detector substitutes currently a popular coil checker or geomagnetism detecting device etc.;
Its two, refer to shown in Fig. 2, adopt pedestrian's video detector to combine with People's Bank of China railway spike, to footpath, pedestrian detects, and adopts railway spike to carry out the alert motor vehicle slow down that glimmers, note dodging pedestrian after pedestrian being detected.
The problems with that presently, there are, is primarily present in pedestrian's video detection technology affected by environment relatively big, and accuracy rate is not high especially, there is error detection or error detection is more.Mainly include the following aspects:
One, crosses effective traffic control scheme in street currently without pedestrains safety;
Its two, the red light phase place of pedestrian's street crossing is fixed, and realizes at most multi-period control function, it is impossible to effectively adapt to the dynamic change of actual pedestrian's quantity, often leads to serious pedestrian's delay;
Its three, pedestrian running red light warning system is self-existent, it does not have well itself and traffic control system are combined by scheme.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, it is provided that a kind of the behavior of pedestrian can be detected after undertaken extending accordingly or shorten by the time that pedestrian phases is let pass and improve going through ability, ensure that traffic control system and the method in street are crossed in the safety of pedestrian's street crossing, the pedestrains safety that has wide range of applications.
To achieve these goals, the pedestrains safety of the present invention crosses the traffic control system in street and method has following composition:
This pedestrains safety crosses the traffic control system in street, and it is mainly characterized by, and described system includes:
Whether pedestrian detection device, have pedestrian to pass through in order to detect on zebra crossing;
Road traffic signal controller, adjusts the output signal of pedestrian phases signal lights in order to the detection signal according to pedestrian detection device;
Red light detection equipment, in order to detect the red signal of pedestrian phases signal lights;Phonetic alarm and several pedestrian phases signal lights.
Further, described pedestrian detection device is pedestrian's video detector, and described pedestrian's video detector is arranged on the position in distance each track, zebra crossing two ends.
Further, described red light detection equipment is when detecting that pedestrian phases signal lights is red light, control described pedestrian detection device and obtain the pedestrian information on current zebra crossing, described system also includes master controller, in order to zebra crossing be have pedestrian to pass through and pedestrian phases signal lights on these zebra crossing not for green light time, the pedestrian information of these zebra crossing that the described pedestrian detection device of storage is acquired;And zebra crossing be have pedestrian by and these zebra crossing on the green time of pedestrian phases signal lights reach pedestrian's maximum green time time, the pedestrian information of these zebra crossing that the described pedestrian detection device of storage is acquired.
Further, audio alert main frame that described phonetic alarm includes receiving the alarm signal of described road traffic signal controller and in order to send the speaker of audio alert information.
The invention still further relates to a kind of pedestrains safety that realizes and cross the traffic control method in street, it is mainly characterized by, and described method comprises the following steps:
(1) whether the pedestrian detection device detection zebra crossing described in there is pedestrian to pass through;
(2) if passed through without pedestrian on described zebra crossing, then described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is red light;
(3) if the pedestrian phases signal lights on these described zebra crossing is not red light, then the green time of the pedestrian phases signal lights on these zebra crossing is set to the minimum green time of pedestrian by described road traffic signal controller;(4) if the pedestrian phases signal lights on these described zebra crossing is red light, then described road traffic signal controller extends the green time of the pedestrian phases signal lights being currently green light;
(5) if having pedestrian to pass through on described zebra crossing, then described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is red light;
(6) if the pedestrian phases signal lights on these described zebra crossing is not red light, then described road traffic signal controller judges that whether the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing is less than or equal to minimum pedestrian's green time;
(7) if the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing less than or equal to minimum pedestrian's green time, then described road traffic signal controller extends the green time of the pedestrian phases signal lights on these zebra crossing;
(8) if the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing more than minimum pedestrian's green time, then described phonetic alarm sends audio alert information;
(9) if the pedestrian phases signal lights on these described zebra crossing is red light, then described phonetic alarm sends audio alert information.
Further, described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is red light, particularly as follows:
Whether the pedestrian phases signal lights that described road traffic signal controller controls on described red light detection these zebra crossing of equipment Inspection is red light.
Further, described step (7) is further comprising the steps of afterwards:
(7.1) road traffic signal controller described in judges that whether time of the pedestrian phases signal lights on these zebra crossing difference with maximum pedestrian's green time is less than first threshold;
(7.2) if the difference of the opening time of the green light of the pedestrian phases signal lights on these zebra crossing and maximum pedestrian's green time is less than first threshold, then described phonetic alarm sends warning warning;
(7.3) if the difference of the opening time of the green light of the pedestrian phases signal lights on these zebra crossing and maximum pedestrian's green time is not less than first threshold, then step (7.1) is continued.
Further, described system also includes master controller, and described step (8) specifically includes following steps:
(8.1) road traffic signal controller described in judges that whether opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing difference with maximum pedestrian's green time is less than Second Threshold;
(8.2) if the difference of the opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing and maximum pedestrian's green time is less than Second Threshold, then described phonetic alarm sends audio alert information, and the pedestrian information of acquired these zebra crossing of pedestrian detection device described in described master controller;
(8.3) if the difference of the opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing and maximum pedestrian's green time is not less than Second Threshold, then step (8.1) is continued.
Further, described system also includes master controller, further comprising the steps of after described step (9):
(10) pedestrian information of these zebra crossing that pedestrian detection device described in master controller is acquired.
Have employed the pedestrains safety in this invention and cross traffic control system and the method in street, pedestrian behavior is detected by the combination being controlled technology by video technique and signal, time that pedestrian phases is let pass carries out extending accordingly or shortening, improve its going through ability, ensure that pedestrian's safety by crossing simultaneously, take into account simultaneously and pedestrian running red light has been carried out voice warning and captures sending function, punishment or warning are provided, substantially increase the pedestrian's current safety at crossing, on-the-spot test effect is obvious, decrease pedestrian running red light, improve the traffic capacity simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation utilizing the realization of pedestrian's video detector in prior art to the detection of the pedestrian of zebra crossing.
Fig. 2 utilizes pedestrian's video detector and People's Bank of China's railway spike realization structural representation to the detection of the pedestrian of zebra crossing in prior art.
Fig. 3 is the structural representation that the pedestrains safety of the present invention crosses the traffic control system in street.
Detailed description of the invention
In order to more clearly describe the technology contents of the present invention, conduct further description below in conjunction with specific embodiment.
The present invention relates to video processing technique and signal control technology, the present invention detects crossing pedestrian mainly through pedestrian detection device, and detection, signal and alarm linkage control to cross the purpose in street reaching pedestrains safety.
The minimum green time of heretofore described pedestrian refers to that pedestrian passes through the minimum time required for zebra crossing, and the maximum green time of described pedestrian refers to when pedestrian passes through zebra crossing, the vehicle of comprehensive road all directions and pedestrian's situation, the maximum time that can provide.
Refer to shown in Fig. 3, cross the structural representation of the traffic control system in street for the pedestrains safety of the present invention, including:
Whether pedestrian detection device, have pedestrian to pass through in order to detect on zebra crossing;Described pedestrian detection device is pedestrian's video detector, and described pedestrian's video detector is arranged on the position in distance each track, zebra crossing two ends.By being deployed in the detection to detection region one skilled in the art of pedestrian's video detector on the rod member of side, pedestrian Accreditation Waiting Area;Controlled by binding signal and audio alert ensures that on-the-spot pedestrains safety is passed through.
Wherein, in order to ensure to reduce the appearance of flase drop situation, detection region is arranged on the position in each track, zebra crossing two ends, interval, detects zone line pedestrian movement's situation.The signal that video detector detects is sent to road traffic signal controller by switching value.Described pedestrian phases signal lights, by the detection to input switch amount, in conjunction with the direction situation of its relevant people line phase, is controlled by road traffic signal controller.
Road traffic signal controller, adjusts the output signal of pedestrian phases signal lights in order to the detection signal according to pedestrian detection device.
Red light detection equipment, in order to detect the red signal of pedestrian phases signal lights;Phonetic alarm and several pedestrian phases signal lights.
Described red light detection equipment is when detecting that pedestrian phases signal lights is red light, control described pedestrian detection device and obtain the pedestrian information on current zebra crossing, described system also includes master controller, in order to zebra crossing be have pedestrian to pass through and pedestrian phases signal lights on these zebra crossing not for green light time, the pedestrian information of these zebra crossing that the described pedestrian detection device of storage is acquired;And zebra crossing be have pedestrian by and these zebra crossing on the green time of pedestrian phases signal lights reach pedestrian's maximum green time time, the pedestrian information of these zebra crossing that the described pedestrian detection device of storage is acquired.
Audio alert main frame that described phonetic alarm includes receiving the alarm signal of described road traffic signal controller and in order to send the speaker of audio alert information.
The invention still further relates to a kind of pedestrains safety that realizes and cross the traffic control method in street, the method mainly includes following several disposition:
First: when passing through without pedestrian in above-mentioned detection region, and described pedestrian phases signal lights is when being not red light, then when pedestrian phases signal lights is under the premise meeting minimum green time, described road traffic signal controller abandons the clearance power of this pedestrian phases, and allows the clearance of other pedestrian phases to weigh.
Second: when passing through without pedestrian in above-mentioned detection region, when simultaneously described pedestrian phases signal lights is red light, then need to extend the green time of the pedestrian phases currently let pass.
3rd: when having pedestrian to pass through in above-mentioned detection region, but corresponding pedestrian phases signal lights is red light (Genus Homo is in the behavior made a dash across the red light at once), then road traffic signal controller sends audio alert information to phonetic alarm by serial ports, carry out audio alert (phonetic alarm includes audio alert main frame and speaker), send candid photograph information to carry out capturing data process to pedestrian detection device simultaneously, send the data to master controller simultaneously.
4th: when having pedestrian to pass through in above-mentioned detection region, corresponding pedestrian phases signal lights is green light simultaneously, but now the green time of pedestrian phases signal lights to reach minimum green time at once, at this moment it is accomplished by extending the clearance time of corresponding pedestrian phases, send too sound to show warning when maximum green time arrives former seconds by phonetic alarm simultaneously, it should be explicitly made clear at this point that time delay is not unconfined herein, when reaching maximum green time, road traffic signal controller then can switch pedestrian phases.
5th: when having pedestrian to pass through in above-mentioned detection region, and the green time of pedestrian phases signal lights has arrived at maximum green time, then need to provide audio alert information, allows pedestrian as early as possible by crossing, and carry out candid photograph process storage.
In order to ensure that the first situation above-mentioned and the second situation do not have intersection, the pedestrains safety that realizes of the present invention is crossed and is adopted following three kinds of modes in the traffic control method in street any one is controlled:
One is that video detector is positioned only at east-west direction or North and South direction, thus without occurring that both direction all extends the phenomenon of green time;
The second is to arrange priority, and having a direction is A-road;
The third is by road traffic signal controller comprehensive descision situation, if both sides are all without pedestrian, then maintains the minimum green time of pedestrian;If there being a side there is no pedestrian, then increase the green time of other direction.Specific embodiment in the present invention adopts the third mode to ensure that the first above-mentioned situation and the second situation do not have intersection.
Therefore the pedestrains safety that realizes of the present invention is crossed the traffic control method in street and is comprised the following steps:
(1) whether the pedestrian detection device detection zebra crossing described in there is pedestrian to pass through;
(2) if passed through without pedestrian on described zebra crossing, then described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is green light;
(3) if the pedestrian phases signal lights on these described zebra crossing is green light, then the green time of the pedestrian phases signal lights on these zebra crossing is set to the minimum green time of pedestrian by described road traffic signal controller;It should be noted that herein and the green time of the pedestrian phases signal lights on these zebra crossing is set to the minimum green time of pedestrian, be not from judge these zebra crossing without pedestrian by and moment that pedestrian phases signal is green light remember, but amendment pedestrian phases signal lights be finally stopped the time so that whole pedestrian phases signal lights is the time of green light is minimum green time.
(4) if the pedestrian phases signal lights on these described zebra crossing is not green light, then described road traffic signal controller extends the green time of the pedestrian phases signal lights being currently green light;It should be noted that herein, it it is the green time of the pedestrian phases signal lights of green light before extending, it is not directly the time of this pedestrian phases signal lights is directly extended to the maximum green time of pedestrian, but described road traffic signal controller according to present road situation suitable extend this pedestrian phases signal lights green time, but finally the green time of this pedestrian phases signal lights must not exceed the maximum green time of pedestrian, namely the prolongation process of the green time of this pedestrian phases signal lights is that classification carries out, can first extend 3 seconds, then 3 seconds are extended again, can also first extend 4 seconds, extend 3 seconds again, but finally the green time of this pedestrian phases signal lights must not exceed the maximum green time of pedestrian.
(5) if having pedestrian to pass through on described zebra crossing, then described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is green light;
(6) if the pedestrian phases signal lights on these described zebra crossing is green light, then described road traffic signal controller judges that whether the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing is less than or equal to minimum pedestrian's green time;
(7) if the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing less than or equal to minimum pedestrian's green time, then described road traffic signal controller extends the green time of the pedestrian phases signal lights on these zebra crossing;Herein, the described green time of the pedestrian phases signal lights on these zebra crossing of prolongation is consistent with the processing mode of the green time of the above-mentioned pedestrian phases signal lights extended on these zebra crossing, does not repeat them here.
(8) if the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing more than minimum pedestrian's green time, then described phonetic alarm sends audio alert information;
(9) if the pedestrian phases signal lights on these described zebra crossing is not green light, then described phonetic alarm sends audio alert information.
Described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is green light, particularly as follows:
Whether the pedestrian phases signal lights that described road traffic signal controller controls on described red light detection these zebra crossing of equipment Inspection is green light.
Described step (7) is further comprising the steps of afterwards:
(7.1) road traffic signal controller described in judges that whether time of the pedestrian phases signal lights on these zebra crossing difference with maximum pedestrian's green time is less than first threshold;
(7.2) if the difference of the opening time of the green light of the pedestrian phases signal lights on these zebra crossing and maximum pedestrian's green time is less than first threshold, then described phonetic alarm sends warning warning;
(7.3) if the difference of the opening time of the green light of the pedestrian phases signal lights on these zebra crossing and maximum pedestrian's green time is not less than first threshold, then step (7.1) is continued.
Described system also includes master controller, and described step (8) specifically includes following steps:
(8.1) road traffic signal controller described in judges that whether opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing difference with maximum pedestrian's green time is less than Second Threshold;
(8.2) if the difference of the opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing and maximum pedestrian's green time is less than Second Threshold, then described phonetic alarm sends audio alert information, and the pedestrian information of acquired these zebra crossing of pedestrian detection device described in described master controller;
(8.3) if the difference of the opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing and maximum pedestrian's green time is not less than Second Threshold, then step (8.1) is continued.
Described system also includes master controller, further comprising the steps of after described step (9):
(10) pedestrian information of these zebra crossing that pedestrian detection device described in master controller is acquired.
The present invention realizes in the traffic control method that pedestrains safety crosses street, pedestrian's video detector is by switching value will whether someone be sent to road traffic signal controller by zebra crossing, road traffic signal controller is judged by self control algolithm, and decision-making extends, shortens current phase place or send audio alert information by serial ports;By the outfan 220V of road traffic signal controller, red light detector detects whether that current phase place is red signal simultaneously, if, then it is sent to video detector by serial ports or Ethernet to capture, and is sent to master controller, complete relevant work.
Have employed the pedestrains safety in this invention and cross traffic control system and the method in street, pedestrian behavior is detected by the combination being controlled technology by video technique and signal, time that pedestrian phases is let pass carries out extending accordingly or shortening, improve its going through ability, ensure that pedestrian's safety by crossing simultaneously, take into account simultaneously and pedestrian running red light has been carried out voice warning and captures sending function, punishment or warning are provided, substantially increase the pedestrian's current safety at crossing, on-the-spot test effect is obvious, decrease pedestrian running red light, improve the traffic capacity simultaneously.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still may be made that various amendment and conversion are without departing from the spirit and scope of the present invention.Therefore, specification and drawings is regarded in an illustrative, rather than a restrictive.
Claims (9)
1. a pedestrains safety crosses the traffic control system in street, it is characterised in that described system includes:
Whether pedestrian detection device, have pedestrian to pass through in order to detect on zebra crossing;
Road traffic signal controller, adjusts the output signal of pedestrian phases signal lights in order to the detection signal according to pedestrian detection device;
Red light detection equipment, in order to detect the red signal of pedestrian phases signal lights;Phonetic alarm and several pedestrian phases signal lights.
2. pedestrains safety according to claim 1 crosses the traffic control system in street, it is characterised in that described pedestrian detection device is pedestrian's video detector, and described pedestrian's video detector is arranged on the position in distance each track, zebra crossing two ends.
3. pedestrains safety according to claim 1 crosses the traffic control system in street, it is characterized in that, described red light detection equipment is when detecting that pedestrian phases signal lights is red light, control described pedestrian detection device and obtain the pedestrian information on current zebra crossing, described system also includes master controller, in order to zebra crossing be have pedestrian to pass through and pedestrian phases signal lights on these zebra crossing not for green light time, the pedestrian information of these zebra crossing that the described pedestrian detection device of storage is acquired;And zebra crossing be have pedestrian by and these zebra crossing on the green time of pedestrian phases signal lights reach pedestrian's maximum green time time, the pedestrian information of these zebra crossing that the described pedestrian detection device of storage is acquired.
4. pedestrains safety according to claim 1 crosses the traffic control system in street, it is characterized in that, audio alert main frame that described phonetic alarm includes receiving the alarm signal of described road traffic signal controller and in order to send the speaker of audio alert information.
5. one kind realizes pedestrains safety based on the system described in claim 1 and crosses the traffic control method in street, it is characterised in that described method comprises the following steps:
(1) whether the pedestrian detection device detection zebra crossing described in there is pedestrian to pass through;
(2) if passed through without pedestrian on described zebra crossing, then described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is red light;
(3) if the pedestrian phases signal lights on these described zebra crossing is not red light, then the green time of the pedestrian phases signal lights on these zebra crossing is set to the minimum green time of pedestrian by described road traffic signal controller;
(4) if the pedestrian phases signal lights on these described zebra crossing is red light, then described road traffic signal controller extends the green time of the pedestrian phases signal lights being currently green light;
(5) if having pedestrian to pass through on described zebra crossing, then described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is red light;
(6) if the pedestrian phases signal lights on these described zebra crossing is not red light, then described road traffic signal controller judges that whether the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing is less than or equal to minimum pedestrian's green time;
(7) if the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing less than or equal to minimum pedestrian's green time, then described road traffic signal controller extends the green time of the pedestrian phases signal lights on these zebra crossing;
(8) if the opening time of the green light of the People's Bank of China's phase signal lamp on these described zebra crossing more than minimum pedestrian's green time, then described phonetic alarm sends audio alert information;
(9) if the pedestrian phases signal lights on these described zebra crossing is red light, then described phonetic alarm sends audio alert information.
6. the pedestrains safety that realizes according to claim 5 crosses the traffic control method in street, it is characterised in that described road traffic signal controller judges whether the pedestrian phases signal lights on these zebra crossing is red light, particularly as follows:
Whether the pedestrian phases signal lights that described road traffic signal controller controls on described red light detection these zebra crossing of equipment Inspection is red light.
7. the pedestrains safety that realizes according to claim 5 crosses the traffic control method in street, it is characterised in that further comprising the steps of after described step (7):
(7.1) road traffic signal controller described in judges that whether time of the pedestrian phases signal lights on these zebra crossing difference with maximum pedestrian's green time is less than first threshold;
(7.2) if the difference of the opening time of the green light of the pedestrian phases signal lights on these zebra crossing and maximum pedestrian's green time is less than first threshold, then described phonetic alarm sends warning warning;
(7.3) if the difference of the opening time of the green light of the pedestrian phases signal lights on these zebra crossing and maximum pedestrian's green time is not less than first threshold, then step (7.1) is continued.
8. the pedestrains safety that realizes according to claim 5 crosses the traffic control method in street, it is characterised in that described system also includes master controller, and described step (8) specifically includes following steps:
(8.1) road traffic signal controller described in judges that whether opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing difference with maximum pedestrian's green time is less than Second Threshold;
(8.2) if the difference of the opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing and maximum pedestrian's green time is less than Second Threshold, then described phonetic alarm sends audio alert information, and the pedestrian information of acquired these zebra crossing of pedestrian detection device described in described master controller;
(8.3) if the difference of the opening time of the green light of the People's Bank of China's phase signal lamp on these zebra crossing and maximum pedestrian's green time is not less than Second Threshold, then step (8.1) is continued.
9. the pedestrains safety that realizes according to claim 5 crosses the traffic control method in street, it is characterised in that described system also includes master controller, further comprising the steps of after described step (9):
(10) pedestrian information of these zebra crossing that pedestrian detection device described in master controller is acquired.
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