CN113160580A - Signal lamp crossing violation detection system capable of generating electricity automatically - Google Patents
Signal lamp crossing violation detection system capable of generating electricity automatically Download PDFInfo
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Abstract
The invention discloses a self-generating signal lamp crossing violation detection system, belonging to a traffic detection device, and the detection system comprises: a first piezoelectric shaft sensor group; a first piezoelectric axis sensor; a first signal processor and a fourth signal processor; an accumulator providing electrical energy; the first traffic light indicates that the pedestrian passes through the zebra crossing; a second traffic light indicating vehicle passage; the first camera is hung above the first traffic light and used for shooting pedestrians through the zebra crossing; the second camera is hung above the second traffic light and used for shooting when the vehicle passes by; the voice module sends voice warning to the pedestrian; the device integrates various detection functions, and uses one set of detection system to simultaneously detect five violation behaviors, wherein the first camera and the LED display screen can be controlled by the controller and are commonly used for multiple violation detections.
Description
Technical Field
The invention relates to a traffic detection device, in particular to a self-generating signal lamp intersection violation detection system.
Background
At present, the electric energy supply in China is generally short, scientists begin to seek to create equipment capable of converting other energy into electric energy, and self-generating devices are produced at the same time. Nowadays, the traffic flow of roads is increasing, and the load of each vehicle is also large. The vehicle drives across the ground and generates a large force (vibration) on the ground. The piezoelectric material is an intelligent material which can generate voltage between two end faces when being stressed, and the piezoelectric material can realize the interconversion of mechanical energy and electric energy, thereby realizing the self-generation.
The signal lamp crossing is a place with more traffic violation phenomena and is also a place with frequent traffic accidents. There are several common violations at signal intersections: pedestrians or vehicles run red, run at overspeed to rush over green when the green is near the end, change lanes with solid lines, and run out of the specified lanes. In order to maintain traffic regulations and guarantee life and property safety of people, it is necessary to detect violation behaviors and correspondingly penalize the violation behaviors.
The existing signal lamp intersection traffic violation detection device has the following problems:
(1) in the past, signal lamp intersection traffic violation detection devices are used for single violation detection, equipment maintenance, data query and the like are carried out separately, and manpower and material resources are consumed. The intersection common traffic violation behaviors are detected by the same set of equipment and the controller, maintenance can be carried out together, data query and export in later periods are more convenient, and manpower resources can be saved.
(2) In the past, signal lamp intersection lane change detection equipment is mostly camera machine identification, needs to be opened all the time, and is power consumptive and memory consuming, and some detections are still supplementary with manual identification, and many times the camera can only beat the locomotive, can not confirm whether real line ball of wheel is whole or the line ball of subtotal, and piezoelectric axis sensor then can realize accurate detection.
(3) The existing commonly-used detection device for driving without a lane is also identified by a camera machine, and other types of devices are fewer, so that the detection device needs to be improved in the aspects of energy conservation and environmental protection or in the aspect of identification accuracy.
(4) In the past, signal lamp intersection traffic violation detection devices are powered by common electric power, and compared with a detection device capable of generating electricity, the detection device is not energy-saving and environment-friendly enough.
Disclosure of Invention
According to the problems in the prior art, the invention discloses a self-generating signal lamp intersection violation detection system, which comprises:
the first piezoelectric axis sensor group is used for detecting pedestrians when passing through the zebra crossing and is laid under the zebra crossing and the road edge ground;
the first piezoelectric shaft sensor is used for detecting when two rows of wheel shafts of the vehicle pass through a parking line, and the first piezoelectric shaft sensor is perpendicular to a lane line and laid under the ground at the position of the parking line;
the first signal processor and the fourth signal processor are used for respectively receiving electric signals transmitted by the first piezoelectric shaft sensor group when a pedestrian passes and electric signals transmitted by the first piezoelectric shaft sensor when two rows of wheel shafts of a vehicle pass, and performing filtering, rectifying and amplifying processing on the electric signals;
the energy storage device is used for receiving and storing the electric energy transmitted by the first signal processor and the fourth signal processor;
the first traffic light indicates that the pedestrian passes through the zebra crossing;
a second traffic light indicating vehicle passage;
the first camera is hung above the first traffic light and used for shooting pedestrians through the zebra crossing;
the second camera is hung above the second traffic light and used for shooting when the vehicle passes by;
the voice module sends voice warning to the pedestrian;
the LED display screen displays the illegal vehicle by warning words;
the controller is used for receiving a signal sent by the first piezoelectric axis sensor group when a pedestrian passes through the zebra crossing, and when the controller monitors that the red light of the first traffic light is on, if the controller receives the signal sent by the first piezoelectric axis sensor when the pedestrian passes through the zebra crossing, the controller controls the voice module to send out voice warning to the pedestrian violating the red light;
the controller receives signals transmitted by the first piezoelectric shaft sensor when two rows of wheel shafts of the vehicle pass through a stop line, and when the controller monitors that a red light of a second traffic light is on, if the controller receives the signals transmitted by the first piezoelectric shaft sensor when the vehicle passes through a zebra crossing, the controller controls the second camera to photograph the vehicle running the red light and controls the LED display screen to display the illegal vehicle information;
the energy storage is the first signal processor, the fourth signal processor, the voice module, the first camera, the second camera, the LED display screen and the controller provide electric energy and receive control information transmitted by the controller.
The vehicle lane driving device further comprises a second piezoelectric shaft sensor group for detecting the passing of the vehicle wheel, wherein the second piezoelectric shaft sensor group is laid under the ground of a solid line between the lane and the lane in parallel to the lane; the controller receives the signal which is transmitted by the second piezoelectric shaft sensor group and is over once when the wheels of the vehicle are pressed within 10 seconds, the controller judges that the vehicle changes the lane, at the moment, the controller controls the second camera to identify and record the illegal vehicle, and controls the LED display screen to display the information of the illegal vehicle
The vehicle wheel electric energy storage device further comprises a second signal processor which is used for filtering, rectifying and amplifying the electric signals transmitted by the second piezoelectric shaft sensor group when the vehicle wheel passes through, the electric energy transmitted by the second signal processor is received by the energy storage device for storage, and the energy storage device provides electric energy for the second signal processor.
The third piezoelectric shaft sensor group is laid in a horizontal N shape in the range of the solid line, is close to the tail end of the solid line and is vertical to the ground of the lane;
the second piezoelectric shaft sensor is paved under the ground 3m in front of the zebra crossing (in the advancing direction of the vehicle) below the second traffic light;
a third camera which is hung in the upper front of the second piezoelectric shaft sensor and shoots when the vehicle passes by;
the third piezoelectric axis sensor group comprises a fourth piezoelectric axis sensor, a fifth piezoelectric axis sensor and a sixth piezoelectric axis sensor;
the fourth piezoelectric axis sensor is connected with one end of the fifth piezoelectric axis sensor, and the other end of the fifth piezoelectric axis sensor is connected with the sixth piezoelectric axis sensor;
the fourth piezoelectric axis sensor, the fifth piezoelectric axis sensor and the sixth piezoelectric axis sensor are arranged in an N shape; the arrangement included angle between the fourth piezoelectric axis sensor and the fifth piezoelectric axis sensor is theta, the fourth piezoelectric axis sensor and the sixth piezoelectric axis sensor are both perpendicular to a lane line, and the arrangement distance between the fourth piezoelectric axis sensor and the sixth piezoelectric axis sensor is L; when two front wheels of the vehicle simultaneously press the fourth piezoelectric shaft sensor, the controller records the time t1When the right front wheel and the left front wheel of the vehicle respectively press the fifth piezoelectric shaft sensor, the controller respectively records the time t2And t3When two front wheels of the vehicle simultaneously press the sixth piezoelectric shaft sensor, the controller records the time t4(ii) a The distance y from the left wheel of the vehicle to the left edge of the lane is obtained by the following formula:
taking a bidirectional six-lane as an example, the lane width is defined to be 3.5m, if y is less than 3.5m, the vehicle is in the leftmost lane, if y is more than or equal to 3.5m and less than 7m, the vehicle is in the middle lane, and if y is more than or equal to 7m and less than 10.5m, the vehicle is in the rightmost lane;
meanwhile, the controller controls the second camera to photograph all vehicles, the lane where each vehicle is located is calculated according to the third piezoelectric shaft sensor group, the second piezoelectric shaft sensor sends a signal to the controller after receiving the pressure of the vehicles, and the controller controls the third camera to photograph all vehicles; if the controller judges that the vehicle violates rules, the controller transmits vehicle violation information to the LED display screen for displaying; the judgment method is as follows:
1) if the lane is a straight lane, the controller matches the picture of the vehicle shot by the second camera with the picture shot by the third camera, and if the same vehicle is not matched, the vehicle is illegal, and the vehicle turns in the straight lane;
2) if the lane is the lane allowing only turning, the controller matches the picture of the vehicle shot by the second camera with the picture shot by the third camera, and if the matching is the same vehicle, the vehicle is illegal and runs straight on the turning lane.
Further: when the green light of the second traffic light is on, the controller starts the overspeed detection,
according to the time t when the wheel presses the fourth piezoelectric shaft sensor1And time t of the sixth piezoelectric axis sensor4The vehicle speed v is calculated by the following formula;
v＝L/t4-t1 (2)
if v is larger than the specified vehicle speed at the signal lamp intersection, the controller controls the second camera to shoot the picture of the vehicle and identifies the license plate number in the picture through the controller; and the controller controls the LED display screen to display the illegal vehicle.
Further: the third signal processor is used for filtering, rectifying and amplifying electric signals transmitted by the third piezoelectric shaft sensor group when two rows of wheel shafts or wheels of a vehicle pass through;
a fifth signal processor for filtering, rectifying and amplifying the electric signals transmitted by the second piezoelectric shaft sensor when the two rows of wheel shafts of the vehicle pass;
the energy storage device receives the electric energy transmitted by the third signal processor and the fifth signal processor for storage, and the energy storage device provides electric energy for the third camera, the third signal processor and the fifth signal processor.
Further, the sensors in the first piezoelectric axis sensor group, the sensors in the second piezoelectric axis sensor group, the sensors in the third piezoelectric axis sensor group, and the sensors in the first piezoelectric axis sensor group and the second piezoelectric axis sensor group are all PVDF piezoelectric axis sensors.
The self-generating signal lamp intersection violation detection system provided by the invention has the following beneficial effects:
(1) the condition that vehicles and pedestrians at the signal lamp intersection run red light is detected, potential safety hazards are reduced, and an environment for safe driving is formed by monitoring and warning the passing vehicles and pedestrians, so that the occurrence rate of traffic accidents at the signal lamp intersection is reduced;
(2) the traffic accident detection method has the advantages that the conditions of vehicle violation pressure solid lines, violation lane changing and overspeed driving at the signal lamp intersection are detected, potential safety hazards are reduced, the environment of safe passing of the intersection is formed by monitoring and warning of passing vehicles, the occurrence rate of traffic accidents at the signal lamp intersection is reduced, and the detection mode is innovative;
(3) the piezoelectric device is energy-saving and environment-friendly, mechanical energy generated by the pedestrians and vehicles extruding the ground is converted into electric energy, and the piezoelectric device is a self-generating system;
(4) the buried PVDF piezoelectric shaft sensor has long service life, high pressure resistance, and is buried under the road surface and not easy to be exposed to the sun or corroded;
(5) the system integrates various signal lamp intersection violation detection functions, five violation behaviors are detected by using one detection system, and the camera and the LED display screen can be controlled by the controller and are commonly used for multiple violation detection items. The method has the advantages that the image data and violation time of the pedestrian running the red light and the vehicle violation are automatically collected, and convenience is brought to various related statistical analyses of behaviors of the pedestrian running the red light and the vehicle violating the traffic rules.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic of the lay-up of the present invention;
FIG. 2 is a block diagram of the present invention;
fig. 3 is a schematic diagram of a third piezoelectric axis sensor group according to the present invention.
In the figure: 1. the sensor system comprises a first piezoelectric axis sensor group, a second piezoelectric axis sensor group, a 3, a third piezoelectric axis sensor group, a 4, a first piezoelectric axis sensor, a 5, a second piezoelectric axis sensor, a 6, a first signal processor, a 7, a second signal processor, a 8, a third signal processor, a 9, a fourth signal processor, a 10, a fifth signal processor, a 11, a controller, a 12, an energy accumulator, a 13, a first camera, a 14, a second camera, a 15, a third camera, a 16, a first traffic light, a 17, a second traffic light, a 18, an LED display screen, a 19, a voice module, a 20, a fourth piezoelectric axis sensor, a 21, a fifth piezoelectric axis sensor, a 22, a sixth piezoelectric axis sensor, a 23, a vehicle, a 24 and a pedestrian.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the drawings in the embodiments of the present invention:
FIG. 1 is a schematic of the lay-up of the present invention; FIG. 2 is a block diagram of the present invention; the invention provides a self-generating signal lamp crossing violation detection system, which comprises: the system comprises a first piezoelectric shaft sensor group 1, a second piezoelectric shaft sensor group 2, a third piezoelectric shaft sensor group 3, a first piezoelectric shaft sensor 4, a second piezoelectric shaft sensor 5, a first signal processor 6, a second signal processor 7, a third signal processor 8, a fourth signal processor 9, a fifth signal processor 10, a controller 11, an energy storage device 12, a first camera 13, a second camera 14, a third camera 15, a first traffic light 16, a second traffic light 17, an LED display screen 18 and a voice module 19;
the first piezoelectric axis sensor group 1 is used for detecting a pedestrian 24 passing through a zebra crossing, and the first piezoelectric axis sensor group 1 is laid under the ground of the zebra crossing and the road edge thereof; laying a piezoelectric axis sensor under each zebra crossing;
the first piezoelectric shaft sensor 4 detects that two rows of wheel shafts of the vehicle 23 pass through a parking line, and the first piezoelectric shaft sensor 4 is laid under the ground at the position of the parking line in a manner of being perpendicular to a lane line;
the first piezoelectric shaft sensor group 1 and the first piezoelectric shaft sensor 4 respectively transmit the transmitted electric signals generated when a pedestrian 24 passes through and the electric signals generated when two rows of wheel axles of a vehicle 23 pass through to the first signal processor 6 and the fourth signal processor 9 for filtering, rectifying and amplifying;
the energy storage device 12 receives the electric energy transmitted by the first signal processor 6 and the fourth signal processor 9 for storage;
the first traffic light 16 indicates the pedestrian 24 passing the zebra crossing;
the second traffic light 17 indicates the vehicle 23 passing through the intersection;
the first camera 13 is hung above the first traffic light 16 to shoot the pedestrian 24 running the red light;
the second camera 14 is hung above the second traffic light 17, and photographs the passing vehicles 23;
the voice module 19 sends out voice warning to the pedestrian 24;
the LED display screen 18 warns the illegal vehicle 23 in words;
the controller 11 receives a signal sent by the first piezoelectric axis sensor group 1 when a pedestrian 24 passes through a zebra crossing, when the controller 11 monitors that a red light of the first traffic light 16 is on, if the controller 11 receives a signal sent by the first piezoelectric axis sensor group 1 when the pedestrian 24 passes through the zebra crossing, the controller 11 controls the first camera 13 to photograph the pedestrian running the red light, and the voice module 19 sends a voice warning to the pedestrian 24 in violation;
the controller 11 receives signals sent by the first piezoelectric shaft sensor 4 when two rows of wheel shafts of the vehicle pass through a stop line, when the controller 11 monitors that a red light of a second traffic light 17 is on, if the controller 11 receives signals sent by the first piezoelectric shaft sensor 4 when the vehicle passes through two coaxial wheels, the controller 11 controls the second camera 14 to take pictures of the vehicle running the red light, and controls the LED display screen 18 to display illegal vehicle information, wherein the display information of the illegal vehicle comprises a license plate number and specific illegal behaviors;
Further, the second piezoelectric shaft sensor group 2 detects the passing of the vehicle wheel, and the second piezoelectric shaft sensor group 2 is laid under the solid line ground between the lanes in parallel with the lanes; when the controller 11 receives the signal that the wheels of the vehicle are pressed more than once and is transmitted by the second piezoelectric shaft sensor group 2 within 10 seconds, the controller 11 judges that the vehicle changes the lane, and at the moment, the controller controls the second camera 14 to identify and shoot the illegal vehicle and controls the LED display screen 18 to display the information of the illegal vehicle.
The second signal processor 7 filters, rectifies and amplifies the electric signals transmitted by the second piezoelectric shaft sensor group 2 when the vehicle wheel passes by, and the energy storage device 12 receives and stores the electric energy transmitted by the second signal processor 7; the energy storage 12 provides electrical energy for the second signal processor 7.
The third piezoelectric shaft sensor group 3 detects whether the two rows of wheel shafts of the vehicle pass through or not and whether the vehicle overspeed or not, and the third piezoelectric shaft sensor group 3 is transversely laid in an N shape in the range of a solid line, is close to the tail end of the solid line and is vertical to the ground of a lane;
the second piezoelectric shaft sensor 5 is used for detecting the passing of two rows of wheel shafts of the vehicle, and the second piezoelectric shaft sensor 5 is laid under the ground 3m in front of the zebra crossing (in the advancing direction of the vehicle) below the second traffic light;
the third camera 15 is hung in front of the second piezoelectric axis sensor 5 to photograph the vehicle;
fig. 3 is a schematic view of a third piezoelectric axis sensor group according to the present invention, in which the third piezoelectric axis sensor group 3 is laid in a horizontal "N" shape in a range of a solid line, near the end of the solid line, and is perpendicular to the ground of a lane line; the third piezoelectric axis sensor group 3 includes a fourth piezoelectric axis sensor 20, a fifth piezoelectric axis sensor 21 and a sixth piezoelectric axis sensor 22;
the fourth piezoelectric axis sensor 20 is connected to one end of the fifth piezoelectric axis sensor 21, and the other end of the fifth piezoelectric axis sensor 21 is connected to the sixth piezoelectric axis sensor 22;
the fourth piezoelectric axis sensor 20, the fifth piezoelectric axis sensor 21 and the sixth piezoelectric axis sensor 22 are arranged in an N shape; the arrangement included angle between the fourth piezoelectric axis sensor 20 and the fifth piezoelectric axis sensor 21 is θ, the fourth piezoelectric axis sensor 20 and the sixth piezoelectric axis sensor 22 are both perpendicular to a lane line, and the arrangement distance between the fourth piezoelectric axis sensor 20 and the sixth piezoelectric axis sensor 22 is L; when both front wheels of the vehicle press the fourth piezoelectric shaft sensor 20 at the same time, the controller 11 records the time t1When the right and left front wheels of the vehicle press the fifth piezoelectric shaft sensor 21, respectively, the controller 11 records the time t2And t3When two front wheels of the vehicle are at the same timeWhen the sixth piezoelectric shaft sensor 22 is pressed, the controller 11 records the time t4(ii) a The distance y from the left wheel of the vehicle to the left edge of the lane is obtained by the following formula:
the invention takes a bidirectional six-lane as an example, assuming that the lane width is 3.5m, if y is less than 3.5m, the vehicle is in the leftmost lane, if y is more than or equal to 3.5m and less than 7m, the vehicle is in the middle lane, and if y is more than or equal to 7m and less than 10.5m, the vehicle is in the rightmost lane;
meanwhile, the controller 11 controls the second camera 14 to photograph all vehicles, the lane where each vehicle is located is calculated according to the third piezoelectric axis sensor group 2, the second piezoelectric axis sensor 5 sends a signal to the controller 11 after receiving the pressure of the vehicle, and the controller 11 controls the third camera 15 to photograph all vehicles; if the controller judges that the vehicle does not run according to the specified lane, the controller 11 records the relevant information of the illegal vehicle; the judgment method is as follows:
1) if the lane is a straight lane, the controller 11 matches the picture of the vehicle taken by the second camera 14 with the picture taken by the third camera 15, and if the same vehicle is not matched, the vehicle violation is indicated and the vehicle turns in the straight lane;
2) if the lane is the lane allowing only turning, the controller 11 matches the picture of the vehicle taken by the second camera 14 with the picture taken by the third camera 15, and if the matching is the same vehicle, the vehicle violation is described and the vehicle is moving straight on the turning lane.
When the green light of the second traffic light 17 is on, the controller 11 starts the overspeed detection,
according to the time t when the wheel presses the fourth piezoelectric shaft sensor 201And time t of the sixth piezoelectric axis sensor 224The vehicle speed v is calculated by the following formula;
v＝L/t4-t1 (2)
if v is greater than the specified vehicle speed at the signal lamp intersection, the controller 11 controls the second camera 14 to take a picture of the vehicle and identifies the license plate number in the picture through the controller; meanwhile, the controller 11 controls the LED display screen 18 to display the license plate number and the violation content of the violation vehicle.
The third signal processor 8 filters, rectifies and amplifies the electric signals transmitted by the third piezoelectric shaft sensor group 3 when the two rows of wheel shafts of the vehicle pass through;
the fifth signal processor 10 performs filtering, rectification and amplification processing on the electric signals transmitted by the second piezoelectric shaft sensor 2 when the two rows of wheel shafts of the vehicle pass through;
the energy storage 12 receives and stores the processed electric energy transmitted by the third signal processor 8 and the fifth signal processor 10, and the energy storage 12 provides electric energy for the third camera 15, the third signal processor 8 and the fifth signal processor 10.
In this embodiment, under the condition of a signal light intersection with six bidirectional lanes, three lanes in the same direction are respectively: the lane detection method comprises the following specific 5 violation detection methods of left-turn lane, straight lane and right-turn lane:
1. detecting the red light running of the pedestrian:
(1) when the red light of the first traffic light 16 is on, if the controller 11 detects that the pedestrian 24 passes through the zebra crossing, the controller 11 controls the first camera to shoot the pedestrian running the red light, and the voice module 19 sends out warning sound at the same time: "you have run the red light and please return to the waiting area. "
(2) When the green light of the first traffic light 16 is on and only the last five seconds remain, the controller 11 controls the voice module 19 to emit a warning sound: the "green time is still five seconds, please pass as soon as possible. "
2. Detecting the red light running of the vehicle:
(1) when the red light of the second traffic light 17 is on, if the controller 11 detects that two rows of wheel shafts of the vehicle 23 successively press the first piezoelectric axis sensor 4, the controller 11 controls the second camera 14 to shoot a picture of the vehicle 23 and sends the picture back to the controller 11, the controller 11 identifies the license plate number of the vehicle 23, and meanwhile, the controller 6 controls the LED display screen 18 to display the license plate number and violation content of the vehicle 23: "you have run the red light. "
The controller 11 transmits the recorded license plate number and the shot picture of the vehicle 23 to the traffic management center together with information such as time, place and the like by adopting a wired network or a wireless transmission mode, and the information is used as a punishment basis for the vehicle 23 running the red light at the signal lamp intersection.
(2) When the red light or the green light of the first traffic light 16 is on, if the controller 11 detects that the pedestrian 24 passes through the zebra crossing, the controller 11 controls the LED display 18 to display the warning word "pedestrian is in front of, please drive carefully. "
3. Detection of illegal lane change of vehicle:
the second piezoelectric shaft sensor group 2 is buried under the solid line between two lanes perpendicular to the parking line, and when the wheel of the vehicle presses the solid line, if the controller 11 receives the signal of the second piezoelectric shaft sensor group 2 once in a short time (10s), the wheel is pressed to the solid line carelessly, and the processing is not needed (depending on the actual regulations of the local traffic bureau). If signals transmitted by the second piezoelectric shaft sensor group 2 are received twice or more within 10s, the second camera 14 is started to take a picture and sends the picture back to the controller 11, and the controller 11 performs picture recognition and recording; and the controller 11 controls the LED display screen 18 to display the license plate number and the violation content of the violation vehicle: "you have violated lane change. And sending the relevant information to the traffic management bureau.
4. Off-lane-marker travel detection of a vehicle:
taking three lanes as an example, the lane where the vehicle is located can be calculated according to the third piezoelectric shaft sensor group 3 arranged in an N shape:
when both front wheels of the vehicle press the fourth piezoelectric shaft sensor 20 at the same time, the controller 11 records the time t1When the right and left front wheels of the vehicle press the fifth piezoelectric shaft sensor 21, respectively, the controller records the time t2And t3When both front wheels of the vehicle press the sixth piezoelectric shaft sensor 22 at the same time, the controller 11 records the time t4(ii) a The distance y from the left wheel of the vehicle 23 to the left edge of the lane can be obtained by the controller according to equation (1):
assuming that the lane width is 3.5m, if y is less than 3.5m, the vehicle is in the leftmost lane, if y is more than or equal to 3.5m and less than 7m, the vehicle is in the middle lane, and if y is more than or equal to 7m and less than 10.5m, the vehicle is in the rightmost lane;
meanwhile, the controller 11 controls the second camera 14 to take pictures of the vehicles and send the pictures back to the controller, the lane where each vehicle is located is calculated according to the third piezoelectric shaft sensor group 3, the second piezoelectric shaft sensor 5 sends a signal to the controller 11 after receiving the pressure of the vehicles, and the controller 11 controls the third camera 15 to take pictures and send the pictures back to the controller 11. Firstly, if the controller calculates that the lane where a certain vehicle is located is a straight-through lane only allowed, the controller 11 matches the picture of the vehicle shot by the second camera 14 with the picture shot by the third camera 15, and if the same vehicle is not matched (the license plate number is the same), the vehicle turns in the straight-through lane; and secondly, if the controller calculates that the lane where a certain vehicle is located is the lane which only allows turning, the controller 11 matches the picture of the vehicle shot by the second camera 14 with the picture shot by the third camera 15, and if the matching is the same vehicle, the vehicle is described to be in a straight line in the turning lane. In case two, the controller 11 recognizes the license plate number in the vehicle picture and sends the related information to the traffic control bureau.
5. Overspeed detection of vehicle:
the overspeed detection is started when the green light of the second traffic light 17 is on, the speed is calculated according to the time difference between the wheel pressing the fourth piezoelectric shaft sensor 20 and the sixth piezoelectric shaft sensor 22 of the third piezoelectric shaft sensor group 3, and the calculation formula is as shown in (2);
if v is larger than the specified vehicle speed of the signal lamp intersection, the controller 11 controls the second camera 14 to take a picture and sends the picture back to the controller 11, and the controller 11 identifies the license plate number in the picture and sends related information to a traffic management bureau; and the controller 11 controls the LED display screen 18 to display the license plate number and the violation content of the violation vehicle: "you have speeding, please slow down. "if v is less than the prescribed vehicle speed, no operation is performed.
In addition, each piezoelectric axis sensor (group) works independently and does not interfere with each other. Since the vehicle generally runs parallel to the lane line, the primary signal unit is the coaxial dual wheel except that the first piezoelectric axis sensor group 1 uses the pressure of the pedestrian as the primary signal unit recognized by the controller, and the second piezoelectric axis sensor group 2 and the fifth piezoelectric axis sensor 21 use the pressure of the wheel of the vehicle as the primary signal unit. The controller 11 may be divided into a plurality of control units to correspond to different detection items, respectively. The number of the cameras and the controllers 11 can be increased according to the actual traffic flow and the number of lanes, but all the technologies related to the same or similar technologies belong to the protection scope of the patent.
Further, the controller 11 transmits the recorded license plate numbers of all the violation vehicles and the shot vehicle photos together with information such as time, place and the like to the traffic management center by adopting a wired network or a wireless transmission mode, and the recorded license plate numbers and the shot vehicle photos are used as punishment bases for the violation vehicles at the signal lamp intersection.
Further, the controller 11 contains an MCU chip, i.e., an SCM microcomputer, and a mass storage to perform control and store pictures and related information, and the controller 11 is the brain of the entire device.
Further, the sensors in the first piezoelectric axis sensor group 1, the sensors in the second piezoelectric axis sensor group 2, the sensors in the third piezoelectric axis sensor group 3, and the sensors in the first piezoelectric axis sensor 4 and the second piezoelectric axis sensor 5 are all PVDF piezoelectric axis sensors. The piezoelectric shaft sensors are all laid at the position about 5cm-10cm away from the ground of the surface layer of the urban asphalt pavement.
Further, the first camera 13, the second camera 14, and the third camera 15 are all infrared cameras.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a signal lamp crossing violation detection system from electricity generation which characterized in that: comprises that
The first piezoelectric axis sensor group is used for detecting pedestrians when passing through the zebra crossing and is laid under the zebra crossing and the road edge ground;
the first piezoelectric shaft sensor is used for detecting when two rows of wheel shafts of the vehicle pass through a parking line, and the first piezoelectric shaft sensor is perpendicular to a lane line and laid under the ground at the position of the parking line;
the first signal processor and the fourth signal processor are used for respectively receiving electric signals transmitted by the first piezoelectric shaft sensor group and generated when pedestrians pass and filtering, rectifying and amplifying electric signals transmitted by the first piezoelectric shaft sensor and generated when two rows of wheel shafts of a vehicle pass;
the energy storage device is used for receiving and storing the electric energy transmitted by the first signal processor and the fourth signal processor;
the first traffic light indicates that the pedestrian passes through the zebra crossing;
a second traffic light indicating vehicle passage;
the first camera is hung above the first traffic light and used for shooting pedestrians through the zebra crossing;
the second camera is hung above the second traffic light and used for shooting when the vehicle passes by;
the voice module sends voice warning to the pedestrian;
the LED display screen displays the illegal vehicle by warning words;
the controller is used for receiving a signal sent by the first piezoelectric axis sensor group when a pedestrian passes through the zebra crossing, and when the controller monitors that the red light of the first traffic light is on, if the controller receives the signal sent by the first piezoelectric axis sensor when the pedestrian passes through the zebra crossing, the controller controls the voice module to send out voice warning to the pedestrian violating the red light;
the controller receives signals transmitted by the first piezoelectric shaft sensor when two rows of wheel shafts of the vehicle pass through a stop line, and when the controller monitors that a red light of a second traffic light is on, if the controller receives the signals transmitted by the first piezoelectric shaft sensor when the vehicle passes through a zebra crossing, the controller controls the second camera to take pictures of the vehicle running the red light and controls the LED display screen to display illegal vehicle information;
the energy storage is the first signal processor, the fourth signal processor, the voice module, the first camera, the second camera, the LED display screen and the controller provide electric energy and receive control information transmitted by the controller.
2. The self-generating signal lamp intersection violation detection system according to claim 1, characterized in that: the vehicle wheel passing detection device further comprises a second piezoelectric shaft sensor group for detecting the passing of the vehicle wheel, wherein the second piezoelectric shaft sensor group is laid under the ground of a solid line between the lanes in parallel to the lanes; the controller receives a signal which is transmitted by the second piezoelectric shaft sensor group and exceeds one time when the wheels of the vehicle press, and then the controller judges that the vehicle changes the lane; the controller controls the second camera to identify and photograph the illegal vehicle and controls the LED display screen to display the information of the illegal vehicle.
3. The self-generating signal lamp intersection violation detection system according to claim 2, characterized in that: the vehicle wheel electric energy storage device is characterized by further comprising a second signal processor for filtering, rectifying and amplifying electric signals transmitted by the second piezoelectric shaft sensor group when a vehicle wheel passes through, the energy storage device receives electric energy transmitted by the second signal processor for storage, and the energy storage device provides electric energy for the second signal processor.
4. The self-generating signal lamp intersection violation detection system according to claim 1, characterized in that: the third piezoelectric shaft sensor group is transversely paved in an N shape in the range of a solid line, is close to the tail end of the solid line and is vertical to the underground of a lane line;
the second piezoelectric shaft sensor is paved in front of a zebra crossing below a second traffic light in a direction perpendicular to a lane line, namely the advancing direction of the vehicle and the ground at the Nm position;
a third camera which is hung in front of the upper part of the second piezoelectric shaft sensor and shoots when a vehicle passes by;
the third piezoelectric axis sensor group comprises a fourth piezoelectric axis sensor, a fifth piezoelectric axis sensor and a sixth piezoelectric axis sensor;
the fourth piezoelectric axis sensor is connected with one end of the fifth piezoelectric axis sensor, and the other end of the fifth piezoelectric axis sensor is connected with the sixth piezoelectric axis sensor;
the fourth piezoelectric axis sensor, the fifth piezoelectric axis sensor and the sixth piezoelectric axis sensor are arranged in an N shape; the arrangement included angle between the fourth piezoelectric axis sensor and the fifth piezoelectric axis sensor is theta, the fourth piezoelectric axis sensor and the sixth piezoelectric axis sensor are both perpendicular to a lane line, and the arrangement distance between the fourth piezoelectric axis sensor and the sixth piezoelectric axis sensor is L; when two front wheels of the vehicle simultaneously press the fourth piezoelectric shaft sensor, the controller records the time t1When the right front wheel and the left front wheel of the vehicle respectively press the fifth piezoelectric shaft sensor, the controller respectively records the time t2And t3When two front wheels of the vehicle simultaneously press the sixth piezoelectric shaft sensor, the controller records the time t4(ii) a The distance y from the left wheel of the vehicle to the left edge of the lane is obtained by the following formula:
defining the lane width to be 3.5m, if y is less than 3.5m, the vehicle is in the leftmost lane, if y is more than or equal to 3.5m and less than 7m, the vehicle is in the middle lane, and if y is more than or equal to 7m and less than 10.5m, the vehicle is in the rightmost lane;
meanwhile, the controller controls the second camera to photograph all vehicles, the lane where each vehicle is located is calculated according to the third piezoelectric shaft sensor group, the second piezoelectric shaft sensor sends a signal to the controller after receiving the pressure of the vehicles, and the controller controls the third camera to photograph all vehicles; if the controller detects that the vehicle violates rules, the controller transmits vehicle violation information to the LED display screen for displaying; the judgment method is as follows:
1) if the lane where the vehicle is located is a straight lane which is only allowed to go straight, the controller matches the picture of the vehicle shot by the second camera with the picture shot by the third camera, and if the same vehicle is not matched, the vehicle is illegal and turns in the straight lane;
2) if the lane where the vehicle is located is the lane which only allows turning, the controller matches the picture of the vehicle shot by the second camera with the picture shot by the third camera, and if the vehicle is matched with the same vehicle, the vehicle is illegal, and the vehicle is straight in the turning lane.
5. The self-generating signal lamp intersection violation detection system according to claim 3, characterized in that: when the green light of the second traffic light is on, the controller starts the overspeed detection,
according to the time t when the wheel presses the fourth piezoelectric shaft sensor1And time t of the sixth piezoelectric axis sensor4The vehicle speed v is calculated by the following formula;
v＝L/t4-t1 (2)
if v is larger than the specified vehicle speed at the signal lamp intersection, the controller controls the second camera to shoot the picture of the vehicle and identifies the license plate number in the picture through the controller; and the controller controls the LED display screen to display the illegal vehicle.
6. The self-generating signal lamp intersection violation detection system according to claim 4, characterized in that: the third signal processor is used for filtering, rectifying and amplifying electric signals transmitted by the third piezoelectric shaft sensor group when two rows of wheel shafts or wheels of a vehicle pass through;
a fifth signal processor for filtering, rectifying and amplifying the electric signals transmitted by the second piezoelectric shaft sensor when the two rows of wheel shafts of the vehicle pass;
the energy storage device receives the electric energy transmitted by the third signal processor and the fifth signal processor for storage, and the energy storage device provides electric energy for the third camera, the third signal processor and the fifth signal processor.
7. The self-generating signal lamp intersection violation detection system according to claim 1, 2 or 4, wherein: the sensors adopted in the first piezoelectric shaft sensor group, the sensors adopted in the second piezoelectric shaft sensor group, the sensors adopted in the third piezoelectric shaft sensor group, the first piezoelectric shaft sensors and the second piezoelectric shaft sensors are all PVDF piezoelectric shaft sensors.
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| CN202110397038.7A CN113160580A (en) | 2021-04-13 | 2021-04-13 | Signal lamp crossing violation detection system capable of generating electricity automatically |
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