CN112133103A - Pedestrian crossing self-adaptive system based on pedal detection - Google Patents
Pedestrian crossing self-adaptive system based on pedal detection Download PDFInfo
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- CN112133103A CN112133103A CN202010999045.XA CN202010999045A CN112133103A CN 112133103 A CN112133103 A CN 112133103A CN 202010999045 A CN202010999045 A CN 202010999045A CN 112133103 A CN112133103 A CN 112133103A
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
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- 238000000034 method Methods 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- -1 nail feet Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
Abstract
The invention relates to a pedestrian crossing self-adaptive system based on pedal detection, which comprises: the device comprises an information acquisition device, an information judgment device and a street crossing signal device. The information acquisition device consists of a buffer device, a pedal and a traffic flow detection camera; the information judging device is composed of a PLC controller; the street crossing signal device mainly comprises an LED lamp bead, a lamp post, an LED character display screen and a lampshade. The pedestrian crossing signal is detected through the detecting pedal, so that direct contact of pedestrians is avoided, the damage and the aging of the device are effectively relieved through the buffering device, the traffic flow change is detected in real time through the camera, the collected information is judged by the information judging device, and the judgment result is transmitted to the signal device. The device still gives motor vehicle and pedestrian's clearance time in a flexible way when avoiding pedestrian direct contact for pedestrian's crossing facility's current efficiency maximize.
Description
Technical Field
The invention belongs to the technical field of traffic control and management, and particularly relates to a pedestrian street crossing adaptive system based on pedal detection, which can effectively help pedestrians and motor vehicles to safely and efficiently pass through a street.
Background
With the increasing number of motor vehicles in recent years, the number of traffic accidents is increasing, and as an important component of traffic participants, pedestrians, the number of related accidents accounts for six of the total number of accidents. How to deal with the road right relationship between pedestrians and motor vehicles also becomes a key factor for solving the smooth traffic operation. At present, there are two main methods for solving the conflict between motor vehicles and pedestrians at road intersections and road sections: the method has the advantages that firstly, the space is separated, namely, the vertical overpass or underground passage is built, but the method has large occupied area and high investment amount, and is particularly difficult to reform in some old urban areas; and secondly, the traffic lights are separated in time, namely, the traffic lights are arranged and matched with proper signal phases, so that the conflict between motor vehicles and pedestrians in all directions is reduced to the minimum.
In the current traffic industry in China, most of intersection signal lamp timing adopts a fixed timing control mode, delay and conflict between pedestrians and motor vehicles cannot be well coordinated in a road section with large traffic flow change, and phase waste is easily caused. Thereby causing the phenomenon of 'Chinese style crossing the road' at some intersections. The control mode of fixed timing increases the behavior of traffic violation on the one hand, and brings great potential safety hazard on the other hand.
In recent years, button pedestrian street crossing signal lamps are also available in many cities of China. The signal lamp effectively avoids the problems that the waiting time of pedestrians is too long and the signal timing is unreasonable. However, for a busy road section, the control mode can seriously affect the traffic efficiency of vehicles on the main road, increase the integral stop times of the vehicles on the road section, and cause troubles to motor vehicle drivers. Meanwhile, the keys are inevitably damaged to a certain extent after being used for a long time, and the maintenance burden in the later period is increased. Moreover, the control mode directly increases the probability of indirect contact of pedestrians, and has negative influence on the prevention of infectious diseases.
Therefore, how to provide a pedestrian crossing signal system with non-contact detection is a problem that needs to be solved urgently by those skilled in the art.
In the invention patent of publication No. CN210721842U, a pedestrian crossing signal detection system with video detection is disclosed, in which the pedestrian status is transmitted to a signal management system by means of detection methods such as image pickup and photograph, and then the signal management system reasonably controls the signal lamp according to the pedestrian status to flexibly release pedestrians and motor vehicles.
In the invention patent of publication number CN201627493U, a pedestrian crossing signal system based on infrared detection is disclosed, which reasonably regulates and controls traffic lights by detecting the number of pedestrians crossing the street.
The two detection modes listed above do not refer to motor vehicles, another important participant in traffic, neither of which detects the operating condition of the motor vehicles, and the two devices are complex, are easy to generate measurement errors, and are easy to generate device faults.
Disclosure of Invention
(1) Technical problem to be solved
The invention provides a pedestrian street crossing signal system and method for pedestrian non-contact detection, aiming at solving the problems of improving the pedestrian street crossing traffic capacity and safety.
(2) Technical scheme
The pedestrian crossing signal system for non-contact detection of pedestrians comprises: the system comprises an information acquisition device, an information judgment device and a street crossing signal device;
the information acquisition device comprises a pedestrian pedal and a traffic flow detection camera and is used for acquiring dynamic information of pedestrians and vehicles in real time, wherein the dynamic information comprises a request for the pedestrians to cross the street, a real-time traffic flow saturation condition and the like;
the information judgment device is arranged outside the signal lamp and used for receiving and processing pedestrian and traffic flow information and the like transmitted by the information acquisition device, and sending a prompt instruction to the street crossing signal device according to a result generated by operation processing judgment;
the signal crossing device is composed of signal lamps, and corresponding phase transformation is carried out through instructions transmitted by the signal judging device, so that the signal phase is relatively reasonable.
(3) Advantageous effects
The pedestrian street crossing control system acquires pedestrian street crossing data and traffic flow conditions through the information acquisition device, transmits the data to the information judgment device, obtains street crossing signal control parameters after a series of analysis and processing are carried out by the information judgment device, and feeds the street crossing signal control parameters back to the street crossing signal device, so that the state of the signal lamp set is controlled by the device, thereby realizing flexible control by detecting the changing pedestrian flow and traffic flow in real time, giving pedestrian clearance time in a humanized manner, and maximizing the passing efficiency of pedestrian street crossing facilities and the running efficiency of motor vehicles.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a general block diagram of a treading pedestrian crossing signal system;
FIG. 2 is a view of a pedestrian signal;
fig. 3 is an enlarged schematic view of the buffer device.
FIG. 1 shows an information acquisition device; 2. an information judging means; 3. a street crossing signal device; 4. a buffer device; 5. a traffic flow detection camera; 6. a pedal; 7. a spring; 8. a connecting rod; 9. a connecting shaft; 10. a seesaw; 11. sleeving a bin; 12. a conduit; 13. a power supply data line; a PLC controller; 15, LED lamp beads; 16. sealing glue; 17. nailing feet; 18. stainless steel screws; 19. hooping; 20. a lamp post; an LED text display screen; 22. a buffer rod; 23. a fixing device; 24. a pressure sensing device; 25. and a lampshade.
Detailed Description
The self-adaptive pedestrian crossing system based on the pedal detection type is composed of an information acquisition device 1, an information judgment device 2 and a crossing signal device 3. The information acquisition device 1 consists of a pedal 6, a buffer device 4, a pressure sensing device 24 and a traffic flow detection camera 5; the information determination device 2 is constituted by a PLC controller 14; the street crossing signal device 3 is composed of LED lamp beads 15, sealing glue 16, nail feet 17, stainless steel screws 18, a hoop 19, a lamp post 20, an LED character display screen 21 and a lampshade 25.
The information acquisition device 1 of the pedestrian crossing self-adaptive system based on the pedal detection type is composed of a buffer device 4, a pedal 6 and a traffic flow detection camera 5. Information acquisition device 1 will set up respectively when the installation, will let it be a little higher than the road surface (be higher than road surface 15cm) when installation footboard 6, prevents to miss and bumps footboard 6, and makes things convenient for some children, old man to trample. The pedal 6 is connected to the damping device 4 by a connecting rod 8. The buffer device 4 can effectively reduce the occurrence of equipment damage and aging, and comprises a spring 7, a connecting rod 8, a connecting shaft 9, a wane 10, a sleeve cabin 11, a buffer rod 22, a fixing device 23 and a pressure sensing device 24. The cover storehouse 11 is installed inside lamp pole 20, connecting axle 9 all locates inside the cover storehouse 11 with spring 7, buffer beam 22 forms elastic construction with spring 7, 8 integrations of connecting rod are connected in the bottom of buffer beam 22, connecting axle 9 runs through the connecting rod 8 bottom, wane 10 one end links to each other with fixing device 23, the other end links to each other with buffer beam 22, wane 10 plays the effect of providing the elasticity for buffer beam 22 with spring 7, make buffer beam 22 when no external force application, can remain as the state shown in fig. 3 all the time. When the pedestrian has the street demand, step on footboard 6 at first, drive connecting axle 9 through the connecting rod 8 that links to each other and push down, connecting axle 9 drives the wane 10 and lifts up, and wane 10 drives buffer beam 22 and rises, collides the forced induction device 24 at the top at last to obtain the pedestrian and cross the street demand. Still be equipped with lamp shade 25 and LED lamp pearl 15 in the top of signal lamp, for the pedestrian at night provides the illumination and shelters from sleet, reduce the damage and the ageing of footboard 6. The pedestrian crossing signal lamp needs to be installed at a road intersection with good sight induction. The traffic flow detection camera 5 needs to be fixed by an anchor ear 19 and a stainless steel screw 18, and is fixed at a position 2m in front of a vehicle stop line, and the fixed position can be reinforced by a sealing glue 16. The power data line 13 is arranged inside the lamp post 20, and the height of the power data line is 5 m. Let it be higher than a normal vehicle to avoid scraping collisions to damage the traffic flow detection camera 5.
The information judging device 2 of the pedestrian crossing self-adaptive system based on the pedal detection type is composed of a PLC (programmable logic controller) 14, signals collected by the information collecting device 1 are transmitted to the information judging device 3 through a power supply data line 13, and the outer layer needs to be protected by a line pipe 12. The information judgment device 2 judges the obtained signal, and the specific process is as follows:
firstly, when the pedestrian crossing demand is not detected, the motor vehicle signal lamp displays green light, and the pedestrian crossing signal lamp displays red light.
When the information acquisition device 1 does not receive the pedestrian crossing request, the signal phase is a motor vehicle green light, and when the information acquisition device 1 receives the pedestrian crossing request, the PLC controller 14 determines whether the signal phase is the pedestrian phase green light or the motor vehicle phase green light next according to the data returned by the traffic flow detection camera 5, considering that the factors have two aspects: on the one hand, it is necessary to determine whether the minimum green time of the motor vehicle has been reached in order to ensure the necessary transit time of the motor vehicle. On the other hand, the system also needs to judge whether the waiting time of the pedestrian reaches the maximum waiting time. According to research, the probability that the pedestrian runs the red light is greatly increased after the waiting time of the pedestrian exceeds the maximum waiting time, so that the green light of the pedestrian is smaller than the maximum waiting time of the pedestrian. The passing efficiency of the motor vehicle and 2 factors of pedestrian crossing safety are comprehensively considered, and the pedestrian crossing phase is required to be triggered when any condition that the passing time of the motor vehicle is more than or equal to the minimum passing time or the pedestrian waiting time is more than or equal to the maximum waiting time is reached.
Before changing the phase, the pedestrian release delay time is executed, the purpose is to provide safe interval time for the phase of the motor vehicle to change from green to red, the state of the motor vehicle signal lamp is changed according to the sequence of green light → green flashing → yellow light, and the pedestrian signal lamp keeps the red light state. Then, after the "pedestrian release delay time" is executed, the PLC controller 14 executes the pedestrian green phase, at which the motor vehicle signal lamp changes state in the order of yellow light → red light, and the pedestrian signal lamp changes state in the order of red light → green light. And then, after the pedestrian green light time is executed, the pedestrian green light is switched into the pedestrian green flashing, so that the pedestrian is reminded to pass through the sidewalk as soon as possible, and the safety of the pedestrian is ensured. The green flashing time is set after being calculated according to parameters such as pedestrian crossing speed, distance and the like.
And finally, after the green flashing phase of the pedestrian crossing the street is finished, the main road is recovered to pass, the signal lamp of the motor vehicle is from the red light → the green light, the signal lamp of the pedestrian is from the green flashing → the red light, and the signal cycle of the pedestrian crossing the street is finished. The pedestrian crossing demand is constantly detected by the aid of the cyclic reciprocating mode, and the pedestrian crossing demand is met.
The street crossing signal device 3 of the pedestrian street crossing adaptive system based on the pedal detection type is composed of LED lamp beads 15, sealing glue 16, nail feet 17, stainless steel screws 18, a hoop 19 and a lamp post 20. After receiving the signal command of the information judgment device 2 through the power data line 13, the LED lamp bead 15 performs corresponding signal lamp color conversion according to the command, thereby completing signal conversion and transmission. The LED lamp bead 15 for controlling pedestrians to cross the street is positioned at the uppermost part of the lamp pole 20 and is fixed by a nail foot 17 and a stainless steel screw 18, and the height is set to be 3m away from the ground; the LED lamp bead 15 for controlling the passing of motor vehicles is fixed by an anchor ear 19 and a stainless steel screw 18, and is generally 5m away from the ground. The specific passing seconds are displayed by an LED character display screen 21, and the LED character display screen 21 is fixed on a lamp post 20 by a hoop 19 and a stainless steel screw 18.
Claims (4)
1. The utility model provides a pedestrian self-adaptation system that crosses street based on footboard detects, specific characteristics are: the system consists of an information acquisition device, an information judgment device and a street crossing signal device; the information acquisition device consists of a pedal, a buffer device, a pressure sensing device and a traffic flow detection camera, and the information judgment device consists of a PLC (programmable logic controller).
2. The pedestrian crossing adaptive system based on pedal detection as claimed in claim 1, wherein: the sleeve bin of the buffer device in the information acquisition device is arranged inside the lamp post, the connecting shaft and the spring are both arranged inside the sleeve bin, the buffer rod and the spring form an elastic structure, the connecting rod is integrally connected to the bottom of the buffer rod, the connecting shaft penetrates through the bottom of the connecting rod, one end of the wane is connected with the fixing device, the other end of the wane is connected with the buffer rod, and the wane and the spring play a role of providing elasticity for the buffer rod, so that the buffer rod can be always kept in a balanced state when no external force is applied to the buffer rod; when the pedestrian has the street demand, step on the footboard at first, drive the connecting axle through the connecting rod that links to each other and push down, the connecting axle drives the wane and lifts on, and the wane drives the buffer beam and rises, collides the pressure-sensitive device at the top at last to obtain the pedestrian and cross the street demand.
3. The pedestrian crossing adaptive system based on pedal detection as claimed in claim 1, wherein: the implementation process of the information judgment device is as follows: when the information acquisition device does not receive a pedestrian crossing request, the signal phase is a motor vehicle green light, when the information acquisition device receives the pedestrian crossing request, the PLC determines whether the signal phase is a pedestrian phase green light or a motor vehicle phase green light according to data sent back by the traffic flow detection camera, two factors of the passing efficiency of the motor vehicle and the pedestrian crossing safety are comprehensively considered, and the pedestrian crossing phase needs to be triggered when any condition that the passing time of the motor vehicle is more than or equal to the minimum passing time or the pedestrian waiting time is more than or equal to the maximum waiting time is reached; after the pedestrian green light time is executed, the pedestrian green light is switched to pedestrian green flashing, so that the pedestrian is reminded to pass through the sidewalk as soon as possible, and the safety of the pedestrian is guaranteed; the green flashing time is set after being calculated according to the pedestrian crossing speed and distance parameters; finally, after the green flashing phase of the pedestrian crossing the street is finished, the main road traffic is recovered, the signal lamp of the motor vehicle is from the red light → the green light, the signal lamp of the pedestrian is from the green flashing → the red light, and the signal cycle of the pedestrian crossing the street is finished; the pedestrian crossing demand is constantly detected by the aid of the cyclic reciprocating mode, and the pedestrian crossing demand is met.
4. The pedestrian crossing adaptive system based on pedal detection as claimed in claim 1, wherein: the street crossing signal device consists of LED lamp beads, nail feet, stainless steel screws, a hoop, a lamp post and an LED character display screen; after receiving a signal command of the information judgment device through the power data line, the LED lamp bead performs corresponding signal lamp color conversion according to the command to complete signal conversion and transmission; the specific passing seconds are displayed by an LED character display screen, and the LED character display screen is fixed on the lamp post by a hoop and stainless steel screws.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010999045.XA CN112133103A (en) | 2020-09-22 | 2020-09-22 | Pedestrian crossing self-adaptive system based on pedal detection |
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| CN202010999045.XA CN112133103A (en) | 2020-09-22 | 2020-09-22 | Pedestrian crossing self-adaptive system based on pedal detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113870587A (en) * | 2021-10-20 | 2021-12-31 | 扬州工业职业技术学院 | Intelligent self-service traffic light control system |
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| CN212484591U (en) * | 2020-09-22 | 2021-02-05 | 东北林业大学 | Pedestrian crossing self-adaptive system based on pedal detection |
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2020
- 2020-09-22 CN CN202010999045.XA patent/CN112133103A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100986279B1 (en) * | 2010-06-30 | 2010-10-07 | 전영일 | Method for control intelligent traffic signal and system thereof |
| KR20150064547A (en) * | 2013-12-03 | 2015-06-11 | (주)피앤씨네트워크 | Safety guidance equipment for pedestrian of crosswork |
| CN204990711U (en) * | 2015-08-06 | 2016-01-20 | 重庆交通大学 | Induction type traffic signals control system based on people's car demand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113870587A (en) * | 2021-10-20 | 2021-12-31 | 扬州工业职业技术学院 | Intelligent self-service traffic light control system |
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