CN111182693A - Linkage induction type street lamp brightness adjusting system and control method thereof - Google Patents
Linkage induction type street lamp brightness adjusting system and control method thereof Download PDFInfo
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- CN111182693A CN111182693A CN201911384852.4A CN201911384852A CN111182693A CN 111182693 A CN111182693 A CN 111182693A CN 201911384852 A CN201911384852 A CN 201911384852A CN 111182693 A CN111182693 A CN 111182693A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to a linkage induction type street lamp brightness adjusting system and a control method thereof.A camera is arranged at each intersection of matched road sections, the cameras interact with data of a control terminal, and the control terminal controls each street lamp in the corresponding road section to work; when the camera records that the configured vehicle enters the road section, the information is integrated and transmitted to the control terminal, the control terminal judges the passing direction of the vehicle, the control terminal controls the street lamp in the corresponding road section to be linked after obtaining the vehicle information until the camera at the exit of the road section collects the target vehicle within the preset time, the brightness adjustment of the street lamp is completed, and otherwise, the vehicle information is further judged. The invention solves the application limitation of the street lamp capable of automatically adjusting the brightness, carries out linkage adjustment on the night illumination scene of the street lamp with fewer passing vehicles, greatly saves energy, reduces light pollution, ensures the passing safety on the premise of the prior art, and is suitable for controlling the street lamp of the vehicle with higher passing speed or larger variable.
Description
Technical Field
The present invention relates to electric heating; the technical field of electric lighting which is not included in other categories, in particular to a linkage induction type street lamp brightness adjusting system and a control method thereof.
Background
Street lamps, which are lamps providing illumination function for roads, are generally lamps in the road illumination range in traffic illumination, and are widely applied to various places needing illumination.
In order to respond to the national requirements of energy conservation and environmental protection, a plurality of street lamps are provided with the function of automatically sensing and adjusting the brightness at present, however, the scheme of automatically adjusting the brightness of the street lamps to realize energy conservation is not suitable for the scene with higher speed, such as a roadway, and the energy conservation effect can not be achieved basically under the condition of night.
Generally, the adjustment is performed by sensing the approach of an object or by the brightness of natural light; relatively speaking, the former is more suitable for the illumination control of pedestrian roads in the common city, for motor vehicles, the vehicle speed is too fast, the scheme is not suitable, and the latter is obviously influenced by weather change, and the energy-saving purpose that the vehicle is started when needed and is not required to be turned off can not be achieved at night.
Besides the consideration of energy conservation, in addition, in a scene different from a highway, similar to a village road and other application scenes, pedestrians and non-motor vehicles are not completely blocked, and a large number of sections with multiple accidents appear under the condition of poor lighting conditions, so that the personal safety of common people is lack of necessary guarantee.
Disclosure of Invention
The invention provides an optimized linkage induction type street lamp brightness adjusting system and a control method thereof, and solves the problems that in the prior art, a scheme for automatically adjusting street lamp brightness to realize energy saving is not suitable for a scene with higher speed, a street road cannot achieve an energy saving effect basically at night, and a village road section has no complete lighting condition.
The technical scheme adopted by the invention is that the linked induction type street lamp brightness adjusting system is arranged by matching with road sections, wherein the road sections are roads between adjacent intersections; the system comprises a camera arranged at each intersection, the camera is connected to a control terminal, and the control terminal is respectively connected to each street lamp in a road section.
Preferably, a communication module is arranged in the vehicle matched with the control terminal, and the communication module is matched with the vehicle assembly; the vehicle assembly includes a vehicle transmission and a vehicle power plant.
Preferably, at least 2 cameras are arranged at any intersection; the 2 cameras are arranged in the diagonal direction of the crossroad or 2 corners of the T-shaped intersection.
A control method of the linkage induction type street lamp brightness adjusting system comprises the following steps:
step 1: configuring a vehicle, and registering the vehicle to a control terminal;
step 2: configuring a camera;
and step 3: initializing the street lamp to an adjustable state, wherein the brightness of the street lamp is greater than 0; starting a camera;
and 4, step 4: the camera collects video streams, when a target vehicle appears, the next step is carried out, and otherwise, the step 3 is repeated;
and 5: the camera acquires vehicle information and transmits the vehicle information to the control terminal, and the control terminal judges the passing direction of the vehicle;
step 6: the control terminal obtains vehicle information and controls the linkage of street lamps in a road section in the vehicle passing direction; if the target vehicle is collected by the camera at the outlet corresponding to the current road section within the preset time, the brightness of the current street lamp is adjusted, otherwise, the next step is carried out;
and 7: and judging the vehicle information, and repeating the step 6 or finishing the adjustment based on the vehicle information.
Preferably, the step 1 comprises the steps of:
step 1.1: assigning a unique code to any vehicle;
step 1.2: encrypting with a private key based on the current code, encrypting the encrypted result with the private key together with a public key, and transmitting the encrypted result to the control terminal;
step 1.3: the control terminal decrypts by adopting the public key to obtain the encrypted vehicle code and the private key, and decrypts by using the private key to obtain the vehicle code;
step 1.4: and registering the vehicle code at the control terminal, and allowing the vehicle communication module to perform information interaction with the control terminal.
Preferably, in step 2, the camera configuration includes GPS information and orientation of the camera.
Preferably, the step 4 comprises the following steps:
step 4.1: a camera collects video streams;
step 4.2: if the difference value between any frame and the previous frame is not 0, the next step is carried out, otherwise, the step 4.2 is repeated;
step 4.3: taking the previous frame as a background frame, and subtracting the current frame from the previous frame to obtain an object to be distinguished, and taking the object as a target frame;
step 4.4: if the target frame is larger than the preset value, the target following is carried out on the object to be distinguished by taking the difference between a plurality of frames behind the current frame and the corresponding previous frame, and if not, the step 4.2 is returned;
step 4.5: and if the motion speed of the object to be identified is greater than the preset value, the vehicle is determined to be a vehicle, and the step 5 is carried out, otherwise, the step 3 is repeated.
Preferably, the step 5 comprises the steps of:
step 5.1: the camera acquires vehicle information, wherein the vehicle information is a vehicle code;
step 5.2: the camera transmits the vehicle information to the control terminal, and the control terminal is in communication connection with the vehicle;
step 5.3: the control terminal acquires positioning information of the vehicle within a plurality of seconds and acquires information of the vehicle assembly;
step 5.4: calculating the matching degree of the positioning information of the vehicle and the information of the vehicle assembly, if the positioning information of the vehicle and the information of the vehicle assembly are matched, carrying out the next step, and if not, repeating the step 5.3; the matching degree comprises matching of a vehicle transmission system and the positioning information and matching of a vehicle power system and the positioning information.
Preferably, the step 6 comprises the steps of:
step 6.1: the control terminal obtains information of the vehicle assembly in real time;
step 6.2: calculating the current position P0 of the vehicle based on the information of the vehicle assembly, wherein P0 is the near end point of the road segment S1, P1 is the far end point, P1 is the near end point of the road segment S2, and P2 is the far end point;
step 6.3: if the average value of the vehicle speeds in the vehicle assembly information obtained last n times is larger than the preset value, the length of the road section S1
wherein α is an adjusting coefficient,
for the average value of the vehicle speeds in the vehicle assembly information obtained last n times, S' is a preset value, otherwise S1＝S′；
If the total length S of the road section is equal to the distance S passed1The difference of the sum is greater than S', the length S of the section S22If not, S ═ S2＝S-S1；
Step 6.4: with the P1 as a central point, the brightness of all street lamps in the road sections S1 and S2 meets normal distribution;
step 6.5: the control terminal acquires information of the vehicle assembly, and the street lamp brightness of the road section S1 and the road section S2 is controlled to be adjusted based on normal distribution based on the information of the vehicle assembly;
step 6.6: when the vehicle reaches P1, if S2＝S-S1If the street lamp brightness of the road section S2 is continuously adjusted based on normal distribution, the next step is carried out, otherwise, the road section S2 is a new road section S1, the current position is updated to a new road section P0, and the step 6.3 is returned;
step 6.7: if the target vehicle is collected by the camera at the outlet corresponding to the current road section within the preset time, finishing the brightness adjustment of the current street lamp, and if not, performing the step 7; the preset time
Wherein S is the total length of the road segment,
is the average value of the vehicle speeds in the vehicle assembly information obtained last n times.
Preferably, in step 7, if the vehicle power system stops working and the vehicle transmission system is steered by 80-100 degrees, the adjustment is finished, the space is released, otherwise, step 6 is repeated based on the vehicle information.
The invention relates to an optimized linkage induction type street lamp brightness adjusting system and a control method thereof.A camera is arranged at each intersection of matched road sections, the cameras interact with data of a control terminal, and the control terminal controls each street lamp in the corresponding road section to work; when the camera records that the configured vehicle enters the road section, the information is integrated and transmitted to the control terminal, the control terminal judges the passing direction of the vehicle, the control terminal controls the street lamp in the corresponding road section to be linked after obtaining the vehicle information until the camera at the exit of the road section collects the target vehicle within the preset time, the brightness adjustment of the street lamp is completed, and otherwise, the vehicle information needs to be further judged.
The invention is used for connecting the cameras of the intersection, monitoring the passing of all vehicles, performing logic association according to the directions and the corresponding road sections, then automatically calculating the illumination distance of the required visual field based on the speed of the vehicles, controlling the street lamps at the corresponding distance in front to turn on, and slowly turning down the street lamps which have passed by.
The invention solves the application limitation of the street lamp capable of automatically adjusting the brightness, carries out linkage adjustment on the night illumination scene of the street lamp with fewer passing vehicles, greatly saves energy, reduces light pollution, ensures the passing safety on the premise of the prior art, and is suitable for controlling the street lamp of the vehicle with higher passing speed or larger variable.
Drawings
FIG. 1 is a schematic view of a system engaged with a road when a vehicle enters a section of road according to the present invention;
FIG. 2 is a schematic view of the system and the road in the process of the vehicle traveling in the road section according to the present invention;
in fig. 1 and 2, the arcs on the street lamp represent the light, and the more the arcs, the greater the brightness of the street lamp;
FIG. 3 is a schematic block diagram of the system architecture of the present invention, wherein the arrows indicate the direction of information transmission;
fig. 4 is a flow chart of a method for controlling a single street lamp according to the present invention.
Detailed Description
The present invention is described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.
The invention relates to a linkage induction type street lamp brightness adjusting system which is arranged in a matching way with a road section 1, wherein the road section 1 is a road between adjacent intersections 2; the system comprises a camera 3 arranged at each intersection 2, wherein the camera 3 is connected to a control terminal, and the control terminal is respectively connected to each street lamp 4 in the road section 1.
A communication module is arranged in the vehicle 5 matched with the control terminal, and the communication module is matched with the vehicle assembly; the vehicle assembly includes a vehicle transmission and a vehicle power plant.
Any intersection is provided with at least 2 cameras 3; the 2 cameras 3 are arranged in the diagonal direction of the intersection 2 or at 2 corners of the T-shaped intersection 2.
In the invention, the central part of the whole system is a control terminal which is used for receiving the video stream transmitted by the camera 3, acquiring the information of the vehicle 5 assembly, calculating the linkage induction scheme of the street lamp 4 and outputting the corresponding street lamp 4.
In the invention, the common intersections 2 comprise T-intersections 2 and crossroads 2, in principle, the T-intersections 2 and the crossroads 2 are both provided with cameras 3, and the road between the two intersections 2 is a road section 1 discussed herein.
In the invention, at least 2 cameras 3 are arranged at each intersection 2 and are respectively arranged in the diagonal direction of the intersection 2 or at 2 corners of the T-shaped intersection 2, and the camera 3 is not a flow camera but belongs to a camera 3 capable of capturing; when the position is photographed by the camera 3 by default, the vehicle 5 is in a normal green light passing state.
In the invention, the information of the vehicle assembly is fed back by a communication module in the vehicle 5, the specific information of the vehicle 5 is judged by the control terminal based on the information of the vehicle assembly, in order to save network bandwidth, generally, the information is once handshake when the current vehicle 5 is confirmed, the connection can be disconnected when the current road section is driven out, or the ending information of the previous road section 1 and the starting information of the next road section 1 can be spliced directly based on an algorithm.
In the present invention, the vehicle transmission is typically used to obtain steering information for the vehicle 5, and the vehicle power plant is typically used to obtain speed information for the vehicle 5; the positioning unit of the vehicle 5 is built into the communication module.
In the invention, a plurality of street lamps 4 are arranged in any road section 1, and the specific arrangement is determined by the technical personnel in the field after comprehensive investigation according to the illumination condition of the road section 1 and the length of the road section 1.
The invention also relates to a control method of the linkage induction type street lamp brightness adjusting system, which comprises the following steps.
Step 1: the vehicle 5 is configured and the vehicle 5 is registered to the control terminal.
The step 1 comprises the following steps:
step 1.1: assigning a unique code to any vehicle 5;
step 1.2: encrypting with a private key based on the current code, encrypting the encrypted result with the private key together with a public key, and transmitting the encrypted result to the control terminal;
step 1.3: the control terminal decrypts by adopting the public key to obtain the encrypted vehicle code and the private key, and decrypts by using the private key to obtain the vehicle code;
step 1.4: and registering the vehicle code at the control terminal, and allowing the vehicle 5 communication module to perform information interaction with the control terminal.
In the present invention, each vehicle 5, when it is required to use the current regulation system, must first join the network of control terminals.
In the invention, the unique code can be a license plate or coded data distributed by the control terminal, and any two codes are different.
In the invention, the codes are encrypted for the second time, so that the uniqueness and the non-tamper property of the information of the vehicle 5 are ensured.
Step 2: the camera 3 is configured.
In the step 2, the configuration of the camera 3 includes the GPS information and the orientation of the camera 3.
In the invention, the GPS information of the camera 3 is configured when the camera 3 is configured, so that the street lamp 4 corresponding to the road section 1 can be adjusted on one hand, and the distance between the camera 3 and the vehicle 5 can be reconfirmed on the other hand in the actual working process.
In the invention, when the intersection 2 is the crossroad 2, 2 cameras 3 are arranged on a block of a diagonal line, and the images of the 2 cameras 3 face to the center of the crossroad 2; when the intersection 2 is a t- intersection 2, 2 cameras 3 are arranged on blocks on two sides of the intersection position of the branch road and the main road of the t-intersection 2, and the image capture of the 2 cameras 3 faces to the center of the t-intersection 2.
And step 3: the street lamp 4 is initialized to an adjustable state, and the brightness of the street lamp 4 is greater than 0; the camera 3 is started.
In the invention, the street lamp 4 can be operated, and at least the brightness of the street lamp 4 near the intersection 2 is larger than 0 in the initial state, so that the camera 3 can shoot and the illumination at the intersection 2 is convenient.
And 4, step 4: the camera 3 collects video streams, and when a target vehicle 5 appears, the next step is carried out, otherwise, the step 3 is repeated.
The step 4 comprises the following steps:
step 4.1: the camera 3 collects video streams;
step 4.2: if the difference value between any frame and the previous frame is not 0, the next step is carried out, otherwise, the step 4.2 is repeated;
step 4.3: taking the previous frame as a background frame, and subtracting the current frame from the previous frame to obtain an object to be distinguished, and taking the object as a target frame;
step 4.4: if the target frame is larger than the preset value, the target following is carried out on the object to be distinguished by taking the difference between a plurality of frames behind the current frame and the corresponding previous frame, and if not, the step 4.2 is returned;
step 4.5: and if the motion speed of the object to be identified is greater than the preset value, the vehicle 5 is determined, and the step 5 is carried out, otherwise, the step 3 is repeated.
In the invention, whether the vehicle 5 appears or not is judged according to the difference value, the appearing vehicle 5 is tracked by the target frame, and the motion track of the appearing vehicle 5 is marked.
In the invention, as the running speed and the size of the target frame of the ordinary pedestrians and non-motor vehicles are different, the vehicle 5 to be tracked is tracked by the target frame, and the vehicle 5 to be tracked is confirmed by the movement speed.
And 5: the camera 3 obtains vehicle information and transmits the vehicle information to the control terminal, and the control terminal judges the passing direction of the vehicle 5.
The step 5 comprises the following steps:
step 5.1: the camera 3 obtains vehicle information, and the vehicle information is a vehicle code;
step 5.2: the camera 3 transmits the vehicle information to the control terminal, and the control terminal establishes communication connection with the vehicle 5;
step 5.3: the control terminal acquires positioning information of the vehicle within 5 seconds and acquires information of a vehicle assembly;
step 5.4: calculating the matching degree of the positioning information of the vehicle 5 and the information of the vehicle assembly, if the positioning information of the vehicle 5 and the information of the vehicle assembly are matched, carrying out the next step, and if not, repeating the step 5.3; the matching degree comprises matching of a vehicle transmission system and the positioning information and matching of a vehicle power system and the positioning information.
In the invention, after the camera 3 obtains the vehicle code, the control terminal allocates the memory for tracking the current vehicle 5.
In the present invention, matching means that the vehicle 5 should turn or go straight based on the information of the vehicle drive system, cross-validation is performed based on the positioning information of the vehicle 5, and cross-validation is performed between the position where the vehicle 5 should be located and the positioning information of the vehicle 5 based on the information of the vehicle drive system.
In the present invention, the mismatching condition includes that the vehicle 5 turns around, but the actual positioning information is not the same, and at this time, the vehicle 5 may turn around or turn to a place on the sidewalk.
Step 6: the control terminal obtains vehicle information and controls the linkage of the street lamps 4 in the road section 1 in the passing direction of the vehicle 5; and if the target vehicle 5 is collected by the camera 3 at the outlet corresponding to the current road section 1 within the preset time, finishing the brightness adjustment of the current street lamp 4, and if not, performing the next step.
The step 6 comprises the following steps:
step 6.1: the control terminal obtains information of the vehicle assembly in real time;
step 6.2: calculating the current position P0 of the vehicle 5 based on the information of the vehicle assembly, taking P0 as a near end point of the road segment S1 and P1 as a far end point, and taking P1 as a near end point of the road segment S2 and P2 as a far end point at the same time;
step 6.3: if the average value of the vehicle speeds in the vehicle assembly information obtained last n times is larger than the preset value, the length of the road section S1
wherein α is an adjusting coefficient,
for the average value of the vehicle speeds in the vehicle assembly information obtained last n times, S' is a preset value, otherwise S1＝S′；
If the total length S of the section 1 is equal to the distance S passed1The difference of the sum is greater than S', the length S of the section S22If not, S ═ S2＝S-S1；
Step 6.4: with the P1 as a central point, the brightness of all street lamps in the road sections S1 and S2 meets normal distribution;
step 6.5: the control terminal acquires information of the vehicle assembly, and controls the brightness of the street lamp 4 of the road section S1 and the road section S2 to be adjusted based on normal distribution based on the information of the vehicle assembly;
step 6.6: when the vehicle 5 reaches P1, if S2＝S-S1If yes, the brightness of the street lamp 4 of the road section S2 is continuously adjusted based on normal distribution, the next step is carried out, otherwise, the previous road section S2 is a new S1, the current position is updated to be a new P0, and the step 6.3 is returned;
step 6.7: if the target vehicle 5 is acquired by the camera 3 at the outlet corresponding to the current road section 1 within the preset time, the brightness of the current street lamp 4 is adjusted, otherwise, the step 7 is performed; the preset time
Where S is the total length of the road segment 1,
is the average value of the vehicle speeds in the vehicle assembly information obtained last n times.
In the invention, the lighting scheme mainly adopted is that the street lamps 4 of the front 2 sub-road sections S1 and S2 are lighted for the current vehicle 5, the brightness of the street lamp 4 in the closer road section 1 is from weak to strong, the sight of a driver is ensured, the intensity of the street lamp 4 in the farther distance is from strong to weak, namely the whole street lamp is a normal distribution pattern; meanwhile, in the process of the vehicle 5 running, the normal distribution pattern also follows forwards and is kept until the road section is finished.
in the invention, when the speed is higher, the average speed is generally adopted at the moment, the length of the first illuminated area needs to be adjusted, the distance of the actual light intensity of the first illuminated area is prolonged from weak to strong road sections due to the high speed, wherein α is an adjustable coefficient,
typically not greater than 2, α ∈ [0,1 ]]。
In the invention, the distance of the road section 1 with the light intensity from weak to strong is required to be ensured, the length of the road section is generally not longer than the total length of the road section 1, and for the road section 1 with the light intensity from strong to weak, the distance is determined according to the total length of the road section 1 and is continuously updated until the vehicle 5 drives out of the current road section 1.
In the present invention, for the road section 1 with the light intensity from strong to weak, the length thereof is related to the distance which has been traveled.
And 7: and judging the vehicle information, and repeating the step 6 or finishing the adjustment based on the vehicle information.
In the step 7, if the condition that the vehicle power system stops working and the vehicle transmission system turns at 80-100 degrees is met, the adjustment is finished, and the space is released, otherwise, the step 6 is repeated based on the vehicle information.
In the invention, when the vehicle 5 is not normally out of the road section 1, the position of the vehicle 5 in the road section 1 is considered to be deviated, if the vehicle transmission system is steered by 80-100 degrees and the vehicle power system stops working, the vehicle 5 reaches the destination and stops tracking, and if any adjustment is not satisfied, the vehicle 5 has great possibility to continue to move, such as temporary stop, anchor dropping and the like, so that the step 6 is repeated, the direction of the vehicle is confirmed, and the front street lamp 4 is lighted.
The system is more suitable for being used on provincial roads, village roads and urban roads at night with longer lengths, and energy consumption is greatly saved.
The invention is matched with a road section 1, a camera 3 is arranged at each intersection 2, the camera 3 interacts with the control terminal data, and simultaneously, the control terminal controls each street lamp 4 in the corresponding road section 1 to work; when the camera 3 records that the configured vehicle 5 enters the road section 1, the information is integrated and transmitted to the control terminal, the control terminal judges the passing direction of the vehicle 5, the control terminal controls the street lamp 4 in the corresponding road section 1 to be linked after obtaining the vehicle information until the camera 3 at the outlet of the road section 1 collects the target vehicle 5 within the preset time, the brightness adjustment of the street lamp 4 is completed, and otherwise, the vehicle information needs to be further judged.
The invention is used for monitoring the passing of all vehicles 5 by connecting a camera 3 of an intersection 2, performing logic association with the corresponding road section 1 according to the direction of the vehicles, then automatically calculating the illumination distance of the required visual field based on the speed of the vehicles, controlling the street lamps 4 at the corresponding distance in front to turn on, and slowly dimming the street lamps 4 which have passed by. The invention solves the application limitation of the street lamp 4 with automatically adjusted brightness, carries out linkage adjustment on the night illumination scene of the street lamp 4 with fewer passing vehicles 5, greatly saves energy, reduces light pollution, ensures the passing safety on the premise, and is suitable for controlling the street lamp 4 with higher passing speed or larger variable.
Claims (10)
1. The utility model provides a linkage induction type street lamp brightness control system, system cooperation highway section sets up its characterized in that: the road section is a road between adjacent intersections; the system comprises a camera arranged at each intersection, the camera is connected to a control terminal, and the control terminal is respectively connected to each street lamp in a road section.
2. The linkage induction type street lamp brightness adjusting system according to claim 1, characterized in that: a communication module is arranged in the vehicle matched with the control terminal, and the communication module is matched with the vehicle assembly; the vehicle assembly includes a vehicle transmission and a vehicle power plant.
3. The linkage induction type street lamp brightness adjusting system according to claim 1, characterized in that: at least 2 cameras are arranged at any intersection; the 2 cameras are arranged in the diagonal direction of the crossroad or 2 corners of the T-shaped intersection.
4. A control method of the linked induction type street lamp brightness adjusting system according to any one of claims 1 to 3, characterized in that: the method comprises the following steps:
step 1: configuring a vehicle, and registering the vehicle to a control terminal;
step 2: configuring a camera;
and step 3: initializing the street lamp to an adjustable state, wherein the brightness of the street lamp is greater than 0; starting a camera;
and 4, step 4: the camera collects video streams, when a target vehicle appears, the next step is carried out, and otherwise, the step 3 is repeated;
and 5: the camera acquires vehicle information and transmits the vehicle information to the control terminal, and the control terminal judges the passing direction of the vehicle;
step 6: the control terminal obtains vehicle information and controls the linkage of street lamps in a road section in the vehicle passing direction; if the target vehicle is collected by the camera at the outlet corresponding to the current road section within the preset time, the brightness of the current street lamp is adjusted, otherwise, the next step is carried out;
and 7: and judging the vehicle information, and repeating the step 6 or finishing the adjustment based on the vehicle information.
5. The control method of the linkage induction type street lamp brightness adjusting system according to claim 4, characterized in that: the step 1 comprises the following steps:
step 1.1: assigning a unique code to any vehicle;
step 1.2: encrypting with a private key based on the current code, encrypting the encrypted result with the private key together with a public key, and transmitting the encrypted result to the control terminal;
step 1.3: the control terminal decrypts by adopting the public key to obtain the encrypted vehicle code and the private key, and decrypts by using the private key to obtain the vehicle code;
step 1.4: and registering the vehicle code at the control terminal, and allowing the vehicle communication module to perform information interaction with the control terminal.
6. The control method of the linkage induction type street lamp brightness adjusting system according to claim 4, characterized in that: in the step 2, the camera configuration includes the GPS information and the orientation of the camera.
7. The control method of the linkage induction type street lamp brightness adjusting system according to claim 4, characterized in that: the step 4 comprises the following steps:
step 4.1: a camera collects video streams;
step 4.2: if the difference value between any frame and the previous frame is not 0, the next step is carried out, otherwise, the step 4.2 is repeated;
step 4.3: taking the previous frame as a background frame, and subtracting the current frame from the previous frame to obtain an object to be distinguished, and taking the object as a target frame;
step 4.4: if the target frame is larger than the preset value, the target following is carried out on the object to be distinguished by taking the difference between a plurality of frames behind the current frame and the corresponding previous frame, and if not, the step 4.2 is returned;
step 4.5: and if the motion speed of the object to be identified is greater than the preset value, the vehicle is determined to be a vehicle, and the step 5 is carried out, otherwise, the step 3 is repeated.
8. The control method of the linkage induction type street lamp brightness adjusting system according to claim 4, characterized in that: the step 5 comprises the following steps:
step 5.1: the camera acquires vehicle information, wherein the vehicle information is a vehicle code;
step 5.2: the camera transmits the vehicle information to the control terminal, and the control terminal is in communication connection with the vehicle;
step 5.3: the control terminal acquires positioning information of the vehicle within a plurality of seconds and acquires information of the vehicle assembly;
step 5.4: calculating the matching degree of the positioning information of the vehicle and the information of the vehicle assembly, if the positioning information of the vehicle and the information of the vehicle assembly are matched, carrying out the next step, and if not, repeating the step 5.3; the matching degree comprises matching of a vehicle transmission system and the positioning information and matching of a vehicle power system and the positioning information.
9. The control method of the linkage induction type street lamp brightness adjusting system according to claim 4, characterized in that: the step 6 comprises the following steps:
step 6.1: the control terminal obtains information of the vehicle assembly in real time;
step 6.2: calculating the current position P0 of the vehicle based on the information of the vehicle assembly, wherein P0 is the near end point of the road segment S1, P1 is the far end point, P1 is the near end point of the road segment S2, and P2 is the far end point;
step 6.3: if the average value of the vehicle speeds in the vehicle assembly information obtained last n times is larger than the preset value, the length of the road section S1
wherein α is an adjusting coefficient,
for the average value of the vehicle speed in the vehicle assembly information obtained last n times, S' is a preset value, otherwise
S1＝S′；
If the total length S of the road section is equal to the distance S passed1The difference of the sum is greater than S', the length S of the section S22If not, S ═ S2＝S-S1；
Step 6.4: with the P1 as a central point, the brightness of all street lamps in the road sections S1 and S2 meets normal distribution;
step 6.5: the control terminal acquires information of the vehicle assembly, and the street lamp brightness of the road section S1 and the road section S2 is controlled to be adjusted based on normal distribution based on the information of the vehicle assembly;
step 6.6: when the vehicle reaches P1, if S2＝S-S1If the street lamp brightness of the road section S2 is continuously adjusted based on normal distribution, the next step is carried out, otherwise, the road section S2 is a new road section S1, the current position is updated to a new road section P0, and the step 6.3 is returned;
step 6.7: if the target vehicle is collected by the camera at the outlet corresponding to the current road section within the preset time, finishing the brightness adjustment of the current street lamp, and if not, performing the step 7; the preset time
Wherein S is the total length of the road segment,
is the average value of the vehicle speeds in the vehicle assembly information obtained last n times.
10. The control method of the linkage induction type street lamp brightness adjusting system according to claim 4, characterized in that: in the step 7, if the condition that the vehicle power system stops working and the vehicle transmission system turns at 80-100 degrees is met, the adjustment is finished, and the space is released, otherwise, the step 6 is repeated based on the vehicle information.
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