CN111540211A - Detection system for pedestrian traffic state of zebra crossing - Google Patents
Detection system for pedestrian traffic state of zebra crossing Download PDFInfo
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- CN111540211A CN111540211A CN202010556355.4A CN202010556355A CN111540211A CN 111540211 A CN111540211 A CN 111540211A CN 202010556355 A CN202010556355 A CN 202010556355A CN 111540211 A CN111540211 A CN 111540211A
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- 241000283070 Equus zebra Species 0.000 title claims abstract description 91
- 238000001514 detection method Methods 0.000 title abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 7
- 230000010365 information processing Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
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- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
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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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
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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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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Abstract
The invention provides a detection system for the passing state of zebra crossing pedestrians, which comprises a monitoring mechanism and an installation mechanism, wherein the bottom of the monitoring mechanism is fixedly connected with the top of the installation mechanism, the monitoring mechanism comprises a main machine shell, a PLC (programmable logic controller) is arranged in the main machine shell, a wide-angle camera is arranged in the middle of the main machine shell, the PLC is connected with the wide-angle camera, a cavity is arranged in the main machine shell below an end cover, one end of the cavity is provided with a network port and a power supply port, and the other end of the cavity is provided with a control signal interface; the installation mechanism comprises a chassis, a bogie and a connecting rod, the chassis is provided with installation holes all around, the middle part of the chassis protrudes upwards to form a boss, the boss is provided with a fixing screw in the middle, the bogie comprises two parallel side plates, the detection system can detect the passing state of pedestrians in real time, the passing efficiency of vehicles and pedestrians is improved, the waiting time is shortened, the structure is flexible, and the installation is convenient.
Description
Technical Field
The invention relates to a detection system for the passing state of pedestrians on a zebra crossing.
Background
The existing Pedestrian Detection (Pedestrian Detection) technology is to determine whether there is a Pedestrian in an image or a video sequence by using a computer vision technology and to give accurate positioning. The technology can be combined with technologies such as pedestrian tracking and pedestrian re-identification, and is applied to the fields of artificial intelligence systems, vehicle driving assistance systems, intelligent robots, intelligent video monitoring, human body behavior analysis, intelligent transportation and the like. The study of pedestrian detection systems began in the mid nineties of the twentieth century. From the beginning to 2002, researchers have used for reference and introduced mature methods in the fields of image processing and pattern recognition, and have focused on available features and simple classification algorithms of pedestrians. Since 2005, training libraries of pedestrian detection technologies tend to be large-scale, detection accuracy tends to be practical, and detection speed tends to be real-time. With the continuous and deep research of colleges and universities, research and automobile manufacturers, the pedestrian detection technology is rapidly developed.
However, the existing detection system for the pedestrian passing state of the zebra crossing cannot meet the actual requirement, so that the passing efficiency of pedestrians and vehicles on the zebra crossing is low, and the waiting time is long.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a detection system for the pedestrian passing state of a zebra crossing, which can detect the pedestrian passing state in real time, improve the passing efficiency of vehicles and pedestrians, reduce the waiting time, and has flexible structure and convenient installation.
The invention is realized in such a way, the system for detecting the passing state of zebra crossing pedestrians comprises a monitoring mechanism and an installation mechanism, the bottom of the monitoring mechanism is fixedly connected with the top of the installation mechanism, the monitoring mechanism comprises a main case, a PLC controller is arranged in the main case, a wide-angle camera is arranged in the middle of the main case, the PLC controller is connected with the wide-angle camera, a fan-shaped end cover is arranged on the surface of one side of the main case, a cavity is arranged in the main case below the end cover, a network port and a power port are arranged at one end of the cavity, a control signal interface is arranged at the other end of the cavity, the network port, the power port and the control signal interface are all connected with the PLC controller, a wiring port is arranged at the bottom of the main case and communicated with the cavity, and a microphone is also arranged in the main case below the, the microphone is connected with the PLC, and a memory card slot cover is arranged on one side of the host shell;
the utility model discloses a safety protection device for railway vehicle, including installation mechanism, chassis, bogie and connecting rod, the chassis is circular setting, the chassis is provided with the mounting hole all around, the protruding boss that forms in chassis middle part, boss mid-mounting has set screw, the bogie includes the curb plate of two parallels, inside respectively movable mounting in curb plate both ends has first rotating pin and second rotating pin, curb plate mid-mounting has spacing bolt, set screw top and first rotating pin middle part fixed connection, connecting rod bottom and second rotating pin middle part fixed connection, the connecting rod top is the screw thread setting, the connecting rod top is installed in the shell, the connecting rod middle part is fixed with the baffle, the cover is equipped with the packing ring on the baffle.
Furthermore, the image data shot by the wide-angle camera is analyzed and processed by the PLC.
Further, first rotation round pin includes the body and establishes the joint portion at the body both ends, body and joint portion all are the cylinder shape, the diameter of body is greater than the diameter of joint portion.
Furthermore, the network port is used for connecting a remote computer and transmitting data processed by the PLC to the remote computer, so that a monitor can remotely check the traffic state of the zebra crossing pedestrian.
Furthermore, the power port is used for connecting a power supply and providing power for the wide-angle camera and the PLC.
Furthermore, the control signal interface is used for connecting a traffic signal lamp, and the control signal generated by the PLC controller can control the state of the traffic signal lamp.
The invention solves another technical problem by providing a use method of a detection system for the passing state of zebra crossing pedestrians, which comprises the following steps:
s1, the PLC controls the zebra crossing traffic signal lamp to display green light and the lane traffic signal lamp to display red light, at the moment, pedestrians on the zebra crossing are in a passing state and the motor vehicles are in a forbidden state, the wide-angle camera shoots the road to obtain pedestrian passing image information and zebra crossing coverage area image information, and the image information is transmitted to the PLC for information processing;
s2, the PLC completes image data processing to obtain the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area;
s3, when the number of people walking outside the zebra crossing area is more than or equal to 1, the PLC controls the microphone to give out alarm sound for reminding pedestrians not to walk out of the zebra crossing area; when the number of people walking outside the zebra crossing area is 0, the PLC controls the microphone to make music;
s4, when the sum of the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area is larger than M or the sum of the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area is 0 within time T, the PLC controls the zebra crossing traffic light to transit to a red light state, the lane traffic light displays a green light, the motor vehicles on the lane are in a passing state, the pedestrians on the zebra crossing are in a forbidden state, the wide-angle camera is aligned with the road to shoot to obtain motor vehicle passing image information and zebra crossing coverage area image information, and the image information is transmitted to the PLC for information processing;
and S5, the PLC controller obtains the number of vehicles of the motor vehicle passing through the zebra crossing area after finishing image data processing, when the number of vehicles of the motor vehicle passing through the zebra crossing area is larger than m or the number of vehicles of the motor vehicle passing through the zebra crossing area within time t is 0, the PLC controller controls the lane traffic signal lamp to transition to a red light state, the zebra crossing traffic signal lamp displays a green light state, and the step S1 is repeated.
Further, in the step S4, the number of people M is greater than 20, and the time T is greater than 5S.
Further, in the step S5, the number m of vehicles is greater than 20, and the time t is greater than 5S.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the monitoring mechanism comprises a PLC (programmable logic controller) and a wide-angle camera, the wide-angle camera can collect pedestrian or vehicle passing image data on the zebra crossing in real time and process the data through the PLC, and then the PLC can accurately and effectively control lane traffic signal lamps or zebra crossing traffic signal lamps, so that efficient passing of pedestrians and vehicles is realized, and the realization of waiting is reduced; the installation mechanism that sets up includes chassis, bogie and connecting rod, and the bogie can angle regulation to make the mainframe shell angle of installing at the connecting rod top adjustable, can aim at the zebra crossing region effectively and shoot, make overall structure nimble, simple to operate.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an overall structural diagram of a detection system for a pedestrian passing state of a zebra crossing provided by the invention.
Fig. 2 is an internal structural diagram of a monitoring mechanism of a detection system for the passing state of zebra crossing pedestrians, which is provided by the invention.
Fig. 3 is an enlarged structural view of a mounting mechanism of the detection system for the passing state of the zebra crossing pedestrian provided by the invention.
Fig. 4 is an enlarged structural view of a first rotating pin of the detection system for the pedestrian passing state of the zebra crossing provided by the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-4, the present embodiment provides a system for detecting the passing state of zebra crossing pedestrians, which includes a monitoring mechanism 1 and a mounting mechanism 2, wherein the bottom of the monitoring mechanism 1 is fixedly connected to the top of the mounting mechanism 2, the monitoring mechanism 1 includes a main housing 3, a PLC controller 4 is disposed inside the main housing 3, the PLC controller 4 is a digital electronic device with a microprocessor, and is a digital logic controller for automatic control, and can load control instructions into a memory at any time for storage and execution. The programmable controller is modularly assembled by an internal CPU, an instruction and data memory, an input/output unit, a power module, a digital analog unit and the like. 3 mid-mounting of host computer shell has wide-angle camera 5, and wide-angle camera 5 is used for collecting pedestrian and the vehicle traffic information on the zebra crossing. PLC controller 4 is connected with wide- angle camera 5, 3 side surface mounting of host computer shell has and is sectorial end cover 6, be provided with cavity 7 in the host computer shell 3 of end cover 6 below, 7 one end of cavity is provided with network port 8 and power port 9, the 7 other ends of cavity are provided with control signal interface 10, network port 8, power port 9 and control signal interface 10 all are connected with PLC controller 4, 3 bottoms of host computer shell are provided with wiring mouth 11, and the wiring that network port 8, power port 9 and control signal interface 10 need passes through wiring mouth 11 access connection. Wiring mouth 11 and cavity 7 intercommunication, still install microphone 12 in the main case 3 of end cover 6 below, microphone 12 is connected with PLC controller 4, and PLC controller 4 can control microphone 12 and make a sound. A memory card slot cover 13 is arranged on one side of the main case 3, and an SD card is arranged in the memory card slot cover 13 and used for storing image information shot by the wide-angle camera 5 and used as backup information;
the installation mechanism 2 comprises a chassis 14, a bogie 15 and a connecting rod 16, wherein the chassis 14 is in a circular shape, installation holes 17 are formed in the periphery of the chassis 14, when the installation mechanism is used, the chassis 14 is attached to a signal lamp pole in an inverted mode, and screws penetrate through the installation holes 17 to be integrally fixed. The middle of the base plate 14 protrudes upwards to form a boss 18, a fixing screw 19 is mounted in the middle of the boss 18, and the fixing screw 19 penetrates through the boss 18 and then is fixed and limited by a nut. The bogie 15 comprises two parallel side plates 20, a first rotating pin 21 and a second rotating pin 22 are movably mounted inside two ends of each side plate 20 respectively, and the first rotating pin 21 and the second rotating pin 22 can rotate freely in the two side plates 20, so that the angle can be adjusted. The middle of the side plate 20 is provided with a limiting bolt 23, the limiting bolt 23 penetrates through the two side plates 20 and then is clamped through a nut, after the limiting bolt 23 clamps the two side plates 20, the positions of the first rotating pin 21 and the second rotating pin 22 are limited, and after the limiting bolt 23 is loosened, the positions of the first rotating pin 21 and the second rotating pin 22 can move, so that the adjustment is convenient. The top of the fixing screw 19 is fixedly connected with the middle of the first rotating pin 21, and the joint is welded and fixed. The bottom of the connecting rod 16 is fixedly connected with the middle of the second rotating pin 22, and the joint is welded and fixed. The top of the connecting rod 16 is in threaded arrangement, the top of the connecting rod 16 is installed in the outer shell 3, and a threaded hole is formed in the corresponding position of the top of the outer shell 3 and can be assembled with the connecting rod 16. Connecting rod 16 middle part is fixed with baffle 24, the cover is equipped with packing ring 25 on the baffle 24, and after shell body 3 and connecting rod 16 assembled, gasket 25 laminated on the surface of shell body 3, had sealed and buffering function.
The image data shot by the wide-angle camera 5 is analyzed and processed by the PLC 4, and the PLC 4 can calculate the number of pedestrians or vehicles and the positions of the pedestrians and the vehicles relative to the zebra crossing according to the image information.
The network port 8 is used for connecting a remote computer and transmitting data processed by the PLC controller 4 to the remote computer, so that a monitor can remotely check the traffic state of the zebra crossing pedestrians, and the communication module is integrated in the PLC controller 4, so that data transmission can be realized.
The power port 9 is used for connecting a power supply and providing power for the wide-angle camera 5 and the PLC 4.
The control signal interface 10 is used for connecting traffic signal lamps, and the control signal generated by the PLC 4 can control the states of the traffic signal lamps, specifically can control the display states of lane traffic signal lamps and zebra crossing traffic signal lamps respectively.
A method of use of a detection system for a pedestrian traffic situation on a zebra crossing, comprising the steps of:
s1, the PLC controls the zebra crossing traffic signal lamp to display green light and the lane traffic signal lamp to display red light, at the moment, pedestrians on the zebra crossing are in a passing state and the motor vehicles are in a forbidden state, the wide-angle camera shoots the road to obtain pedestrian passing image information and zebra crossing coverage area image information, and the image information is transmitted to the PLC for information processing;
s2, the PLC completes image data processing to obtain the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area;
s3, when the number of people walking outside the zebra crossing area is more than or equal to 1, the PLC controls the microphone to give out alarm sound for reminding pedestrians not to walk out of the zebra crossing area; when the number of people walking outside the zebra crossing area is 0, the PLC controls the microphone to make music; the pedestrians can be normalized to walk on the zebra crossing;
s4, when the sum of the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area is more than 100 or the sum of the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area is 0 (the specific numerical value can be adjusted according to the actual condition of the road), the PLC controls the zebra crossing traffic light to transition to a red light state, and the lane traffic light displays a green light, so that the waiting time of the motor vehicle is effectively reduced, and meanwhile, the normal passing of pedestrians can be ensured; at the moment, the motor vehicles on the lane are in a passing state, pedestrians on the zebra crossing are in a forbidden state, the wide-angle camera is aligned with the road to shoot to obtain motor vehicle passing image information and zebra crossing coverage area image information, and the image information is transmitted to the PLC for information processing;
s5, the PLC controller obtains the number of vehicles of the motor vehicle passing through the zebra crossing area after finishing image data processing, and when the number of vehicles of the motor vehicle passing through the zebra crossing area is larger than 100 or the number of vehicles of the motor vehicle passing through the zebra crossing area is 0 within 8S (the specific numerical value can be adjusted according to the actual condition of the road), the PLC controller controls the lane traffic signal lamp to transition to a red light state, thereby effectively reducing the waiting time of pedestrians and simultaneously ensuring the normal traffic of the vehicles; and (5) the zebra crossing traffic signal lamp displays the green light state, and the step S1 is repeated.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the monitoring mechanism comprises a PLC (programmable logic controller) and a wide-angle camera, the wide-angle camera can collect pedestrian or vehicle passing image data on the zebra crossing in real time and process the data through the PLC, and then the PLC can accurately and effectively control lane traffic signal lamps or zebra crossing traffic signal lamps, so that efficient passing of pedestrians and vehicles is realized, and the realization of waiting is reduced; the installation mechanism that sets up includes chassis, bogie and connecting rod, and the bogie can angle regulation to make the mainframe shell angle of installing at the connecting rod top adjustable, can aim at the zebra crossing region effectively and shoot, make overall structure nimble, simple to operate.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.
Claims (9)
1. The utility model provides a detecting system for zebra crossing pedestrian state of passing, includes monitoring mechanism (1) and installation mechanism (2), monitoring mechanism (1) bottom and installation mechanism (2) top fixed connection, a serial communication port, monitoring mechanism (1) includes host computer shell (3), host computer shell (3) inside is provided with PLC controller (4), host computer shell (3) mid-mounting has wide-angle camera (5), PLC controller (4) are connected with wide-angle camera (5), host computer shell (3) one side surface mounting has and is sectorial end cover (6), be provided with cavity (7) in host computer shell (3) of end cover (6) below, cavity (7) one end is provided with network port (8) and power port (9), cavity (7) other end is provided with control signal interface (10), network port (8), The power supply port (9) and the control signal interface (10) are both connected with the PLC (programmable logic controller) (4), a wiring port (11) is formed in the bottom of the host shell (3), the wiring port (11) is communicated with the cavity (7), a microphone (12) is further installed in the host shell (3) below the end cover (6), the microphone (12) is connected with the PLC (4), and a memory card slot cover (13) is arranged on one side of the host shell (3);
the mounting mechanism (2) comprises a chassis (14), a bogie (15) and a connecting rod (16), wherein the chassis (14) is circularly arranged, mounting holes (17) are formed in the periphery of the chassis (14), a boss (18) is formed in the middle of the chassis (14) in an upwards protruding mode, a fixing screw (19) is mounted in the middle of the boss (18), the bogie (15) comprises two parallel side plates (20), a first rotating pin (21) and a second rotating pin (22) are movably mounted in the two ends of each side plate (20) respectively, a limiting bolt (23) is mounted in the middle of each side plate (20), the top of each fixing screw (19) is fixedly connected with the middle of the corresponding first rotating pin (21), the bottom of the connecting rod (16) is fixedly connected with the middle of the corresponding second rotating pin (22), the top of the connecting rod (16) is in a threaded mode, and the top of the connecting rod (16) is mounted in an, a baffle plate (24) is fixed in the middle of the connecting rod (16), and a gasket (25) is sleeved on the baffle plate (24).
2. The system for detecting the pedestrian crossing status according to claim 1, wherein the image data captured by the wide-angle camera (5) is analyzed and processed by the PLC controller (4).
3. A system for detecting the pedestrian crossing status according to claim 1, wherein said first rotating pin (21) comprises a body (26) and a clamping portion (27) provided at both ends of the body (26), said body (26) and said clamping portion (27) are each cylindrical, and the diameter of said body (26) is greater than the diameter of said clamping portion (27).
4. The system for detecting the pedestrian crossing status of zebra crossings as claimed in claim 1, wherein said network port (8) is used for connecting a remote computer, and transmitting the data processed by the PLC controller (4) to the remote computer, so that the monitor can remotely check the pedestrian crossing status of zebra crossings.
5. The system for detecting the pedestrian crossing status according to claim 1, wherein the power port (9) is used for connecting a power supply to supply power to the wide-angle camera (5) and the PLC controller (4).
6. The system for detecting the pedestrian traffic state of the zebra crossing of claim 1, wherein the control signal interface (10) is used for connecting a traffic signal lamp, and the control signal generated by the PLC (4) can control the state of the traffic signal lamp.
7. A method of use of a system for detecting the traffic status of zebra crossings, comprising the steps of:
s1, the PLC controls the zebra crossing traffic signal lamp to display green light and the lane traffic signal lamp to display red light, at the moment, pedestrians on the zebra crossing are in a passing state and the motor vehicles are in a forbidden state, the wide-angle camera shoots the road to obtain pedestrian passing image information and zebra crossing coverage area image information, and the image information is transmitted to the PLC for information processing;
s2, the PLC completes image data processing to obtain the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area;
s3, when the number of people walking outside the zebra crossing area is more than or equal to 1, the PLC controls the microphone to give out alarm sound for reminding pedestrians not to walk out of the zebra crossing area; when the number of people walking outside the zebra crossing area is 0, the PLC controls the microphone to make music;
s4, when the sum of the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area is larger than M or the sum of the number of people walking in the zebra crossing area and the number of people walking outside the zebra crossing area is 0 within time T, the PLC controls the zebra crossing traffic light to transit to a red light state, the lane traffic light displays a green light, the motor vehicles on the lane are in a passing state, the pedestrians on the zebra crossing are in a forbidden state, the wide-angle camera is aligned with the road to shoot to obtain motor vehicle passing image information and zebra crossing coverage area image information, and the image information is transmitted to the PLC for information processing;
and S5, the PLC controller obtains the number of vehicles of the motor vehicle passing through the zebra crossing area after finishing image data processing, when the number of vehicles of the motor vehicle passing through the zebra crossing area is larger than m or the number of vehicles of the motor vehicle passing through the zebra crossing area within time t is 0, the PLC controller controls the lane traffic signal lamp to transition to a red light state, the zebra crossing traffic signal lamp displays a green light state, and the step S1 is repeated.
8. The system for detecting the pedestrian crossing status of zebra crossing of claim 1, wherein the number of people M is greater than 20 and the time T is greater than 5S in step S4.
9. The system for detecting the pedestrian crossing state of the zebra crossing of claim 1, wherein the number m of vehicles is greater than 20 and the time t is greater than 5S in the step S5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010556355.4A CN111540211A (en) | 2020-06-17 | 2020-06-17 | Detection system for pedestrian traffic state of zebra crossing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010556355.4A CN111540211A (en) | 2020-06-17 | 2020-06-17 | Detection system for pedestrian traffic state of zebra crossing |
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| CN111540211A true CN111540211A (en) | 2020-08-14 |
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Application publication date: 20200814 |
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