CN113993255A - Tunnel illumination control method and system - Google Patents
Tunnel illumination control method and system Download PDFInfo
- Publication number
- CN113993255A CN113993255A CN202111293853.5A CN202111293853A CN113993255A CN 113993255 A CN113993255 A CN 113993255A CN 202111293853 A CN202111293853 A CN 202111293853A CN 113993255 A CN113993255 A CN 113993255A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- tunnel
- current
- calculating
- lighting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005286 illumination Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 201000004569 Blindness Diseases 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006996 mental state Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/125—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using cameras
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a method and a system for tunnel illumination control.A nonlinear illumination control method is adopted in a tunnel, and the energy consumption is reduced as much as possible under the condition of ensuring enough visual field brightness; the hardware equipment of the sensor reduces the maintenance cost and the installation cost of the hardware; when no vehicle passes through the tunnel, the light in the tunnel is closed at regular intervals, so that the energy consumption is further reduced; the lighting lamp at the two ends in the tunnel is set to be close to the outside of the tunnel, so that the 'black hole effect' and the 'blinding effect' at the position of the tunnel mouth can be avoided, and the accident occurrence probability is reduced.
Description
Technical Field
The invention relates to the technical field of tunnel lighting control, in particular to a method and a system for controlling tunnel lighting.
Background
The traditional tunnel lighting scheme is not intelligent and has high energy consumption. The tunnel lighting intelligent control method in the prior art is based on an intelligent regulation and control method of a large number of sensors, and although intelligent regulation and control are realized, dependence on hardware also causes higher hardware cost, more operation, management and maintenance expenses and more complex processing modes. In addition, most of the existing tunnel lighting does not consider the light contrast between the tunnel portal and the outside, which causes black hole effect, blindness effect and the like, and the black hole effect, the blindness effect and the like, which have great influence on safe driving.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide a method and a system for controlling tunnel lighting, which can reduce energy consumption and highway operation management cost and reduce the probability of traffic accidents caused by inappropriate lighting methods.
The invention discloses a tunnel illumination control method, which comprises the following steps: shooting real-time images in the tunnel by using camera equipment in the tunnel at intervals of a first preset time period; identifying the real-time images, and calculating and acquiring the current running speed of the vehicle according to more than two real-time images when the vehicle is identified; calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle, and executing turn-on; calculating and acquiring the time of the vehicle reaching the next road section according to the distance between the vehicle and the current camera equipment, and starting the lighting device of the next road section according to the time; calculating and acquiring the luminous intensity of each lighting device according to the distance between each lighting device in the turned-on lighting devices and the vehicle and the current running speed of the vehicle; the vehicle is shot by the camera equipment of different road sections as the vehicle travels different road sections, so that the starting and stopping of the lighting devices of different road sections in the tunnel and the luminous intensity of each turned-on lighting device are controlled.
Preferably, the calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the tunnel according to the historical average speed of the current road section and the current running speed of the vehicle comprises: according to the formula L2 max { v/v }m1} v calculating the length of the road section on which the lighting device is distributed; wherein v is the current running speed of the vehicle, vmThe historical average speed of the current road section is obtained; and acquiring the turn-on number of the lighting devices according to the distance between the lighting devices.
Preferably, the calculating and acquiring the light emitting intensity of each of the turned-on lighting devices according to the distance from the vehicle to the lighting device and the current running speed of the vehicle includes: according to the formula
Calculating and acquiring the luminous intensity of each of the turned-on lighting devices; wherein the content of the first and second substances,x is the distance between the lighting device and the vehicle, x is positive representing that the lighting device is positioned in front of the vehicle, x is negative representing that the lighting device is positioned behind the vehicle, and v is the current driving speed of the vehicle.
Preferably, the recognizing the real-time image, and when a vehicle is recognized, the calculating and acquiring the current running speed of the vehicle according to more than two real-time images includes: and when the number of the vehicles is more than 1, calculating and acquiring an average value of the current running speeds of the vehicles which are closest to and farthest from the camera device as the current running speed of the vehicle.
Preferably, the number of the lighting devices arranged in the length direction in the current road section is obtained through calculation according to the historical average speed of the current road section and the current running speed of the vehicle, and the lighting devices are turned on; the time when the vehicle reaches the next road section is calculated and obtained according to the distance between the vehicle and the current camera equipment, and the lighting device of the next road section is turned on according to the time further comprises the following steps: when the vehicle reaches the next road section, shooting a real-time image of the vehicle according to the camera equipment, calculating and acquiring the current running speed of the vehicle according to the real-time image, calculating and acquiring the number of the lighting devices to be turned on, and executing the calculation.
Preferably, the historical average speeds include a first average speed, a second average speed, a third average speed, a fourth average speed, and a fifth average speed; the first average speed is the average speed of all passing vehicles from 0 point to 8 points, the second average speed is the average speed of all passing vehicles from 8 points to 12 points, the third average speed is the average speed of all passing vehicles from 12 points to 16 points, the fourth average speed is the average speed of all passing vehicles from 14 points to 20 points, and the fifth average speed is the average speed of all passing vehicles from 20 points to 24 points; the calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the tunnel according to the historical average speed of the current road section and the current running speed of the vehicle comprises the following steps: and calculating and acquiring the turn-on number of the lighting devices arranged in the tunnel along the length direction according to the historical average speed corresponding to the current time and the current running speed of the vehicle.
Preferably, the identifying the real-time image, and when a vehicle is identified, the calculating and acquiring the current running speed of the vehicle according to more than two real-time images further includes: storing the current running speed of the vehicle, and taking the current running speed as the sub-speed of the passing vehicle of the road section corresponding to the camera equipment from which the real-time image is derived; and calculating and acquiring the average speed of all passing vehicles according to the sub-speeds of all the vehicles.
Preferably, the identifying the real-time image, and when a vehicle is identified, the calculating and acquiring the current running speed of the vehicle according to more than two real-time images further includes: and when the vehicle is not identified, turning on all the lighting devices in the tunnel at intervals of a second preset time period for a third preset time period.
Preferably, the calculating and acquiring the light emitting intensity of each of the turned-on lighting devices according to the distance from the vehicle to the lighting device and the current running speed of the vehicle further includes: acquiring the illumination intensity outside the tunnel in real time; and adjusting the luminous intensity of the preset number of lighting devices positioned at the two ends of the tunnel in real time according to the illumination intensity outside the tunnel.
The invention also discloses a system for controlling tunnel illumination, which comprises a plurality of illumination control modules arranged in the tunnel at equal intervals along the length direction, wherein a road section is arranged between the two illumination control modules, and each illumination control module comprises: a lighting device, each of the lighting control modules comprising one or more of the lighting devices; the system comprises a camera device, a server and a server, wherein the camera device takes real-time images in a tunnel at intervals of a first preset time period; the image processing equipment is used for identifying whether a vehicle exists in the real-time image; the control equipment calculates and acquires the current running speed of the vehicle according to more than two real-time images when the vehicle is identified; calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle, and executing turn-on; calculating and acquiring the time of the vehicle reaching the next road section according to the distance between the vehicle and the current camera equipment, and starting the lighting device of the next road section according to the time; calculating and acquiring the luminous intensity of each lighting device according to the distance between each lighting device in the turned-on lighting devices and the vehicle and the current running speed of the vehicle; the control device of the lighting control module of different road sections controls the on/off of the lighting devices of different road sections in the tunnel and the luminous intensity of each turned-on lighting device as the vehicle travels different road sections and is photographed by the camera device of the lighting control module of different road sections.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1) a nonlinear illumination control method is adopted in the tunnel, so that the energy consumption is reduced as much as possible under the condition of ensuring enough visual field brightness; the hardware equipment of the sensor reduces the maintenance cost and the installation cost of the hardware;
2) when no vehicle passes through the tunnel, the light in the tunnel is closed at regular intervals, so that the energy consumption is further reduced;
3) the lighting lamp at the two ends in the tunnel is set to be close to the outside of the tunnel, so that the 'black hole effect' and the 'blinding effect' at the position of the tunnel mouth can be avoided, and the accident occurrence probability is reduced.
Drawings
FIG. 1 is a flowchart of a method for controlling tunnel lighting according to the present invention;
FIG. 2 is a schematic diagram of the effect of the illumination control signal of the illumination device provided by the present invention;
fig. 3 is a schematic structural diagram of a preferred system for controlling tunnel illumination provided by the present invention;
fig. 4 is a schematic structural diagram of another preferred system for controlling tunnel illumination provided by the present invention.
Detailed Description
The advantages of the invention are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Referring to fig. 1, the invention discloses a method for controlling tunnel lighting, comprising the following steps:
s100, shooting real-time images in the tunnel by using camera equipment in the tunnel at intervals of a first preset time period;
s200, identifying the real-time images, and calculating and acquiring the current running speed of the vehicle according to more than two real-time images when the vehicle is identified;
s300, calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle, and turning on the lighting devices; calculating and acquiring the time of the vehicle reaching the next road section according to the distance between the vehicle and the current camera equipment, and starting the lighting device of the next road section according to the time;
s400, calculating and acquiring the luminous intensity of each lighting device according to the distance between each lighting device in the turned-on lighting devices and the vehicle and the current running speed of the vehicle;
and S500, as the vehicle travels different road sections, the vehicle is shot by the camera equipment of the different road sections, so that the starting and stopping of the lighting devices of the different road sections in the tunnel and the luminous intensity of each started lighting device are controlled.
It should be noted that the numerical values of the steps in the present invention do not strictly represent the sequence of the steps, but merely represent a more understandable sequence. Under a certain scene, the sequence can be changed.
The tunnel is divided into a plurality of road sections, each road section is provided with a camera device for taking pictures and a lighting device for lighting, a shooting range is shot through the camera devices, when a vehicle is identified in a shot real-time image through an image identification technology, the vehicle passing in the shooting range is indicated, the driving speed of the vehicle is detected immediately, and the number of lighting devices which are required to be turned on in the current road section is calculated and obtained through the historical average speed of the current road section and the current driving speed of the vehicle. It should be noted that the number actually corresponds to the range in which the lighting devices are distributed, and thus the actual value obtained by calculation is the range in which the lighting devices are distributed.
In addition to controlling the turning on of the lighting device on the current road segment, in order to ensure that the vehicle has a light source at any time in the passing process, the turning on of the lighting device on the next road segment needs to be controlled, and the turning on number (corresponding to the lighting range) can be the same as or different from that of the previous lighting device. The actual need is judged according to the running speed of the vehicle. Specifically, the distance between the vehicle and the image pickup apparatus, the distance between the current image pickup apparatus and the next image pickup apparatus, and the traveling speed of the vehicle are detected to calculate the time when the vehicle reaches the next image pickup apparatus, by which the turn-on of the illumination device of the next road section is controlled. It should be noted that, the starting may be executed immediately when the time is reached, that is, seamless connection may be performed, or the starting may be performed in advance with the time, so as to prevent errors and faults in the connection process. How long before, it is not limited herein. In addition, the lighting device of the next road section and the lighting device of the current road section can be controlled to be turned on simultaneously.
In addition to controlling the illumination range of the vehicle, the present invention also provides for controlling the luminous intensity of the illumination device, which is always stronger the closer the vehicle is to the illumination device.
The lighting device is an annular light-emitting device. The first preset time period is preferably 1S.
Preferably, the calculation formula for calculating and obtaining the turn-on number (corresponding lighting range) of the lighting devices arranged in the length direction in the tunnel according to the historical average speed of the current road section and the current running speed of the vehicle is as follows: l2 max { v/v }m1 }. v, where v is the current speed of travel of the vehicle, vmIs the historical average speed of the current road segment. After the illumination range is obtained, the number of the lighting devices to be turned on can be obtained according to the distance between the lighting devices.
Preferably, the calculation formula for calculating and obtaining the luminous intensity of each lighting device according to the distance from the vehicle to each lighting device in the turned-on lighting devices and the current running speed of the vehicle is as follows:
wherein x is the distance between the lighting device and the vehicle, x is positive to represent that the lighting device is positioned in front of the vehicle, x is negative to represent that the lighting device is positioned behind the vehicle, and v is the current running speed of the vehicle. When δ is less than 0.1, the value is set to 0, i.e., the lowest light emission intensity of the lighting device that can be controlled is 0.1. The value may be replaced by other values, and is not limited.
Referring to fig. 2, the direction of the arrow is the center of control of the control signal to the lighting device, which represents to some extent the current vehicle position. The light emitting range of the whole controlled lighting device is from the rear of the vehicle to the front of the curve landing point shown in the figure, meanwhile, the curve represents the light emitting intensity of the lighting device, the light emitting intensity of the place far away from the vehicle body is low, and the light emitting intensity of the place near the vehicle body is high.
Preferably, the real-time image is recognized, and when it is recognized that the number of vehicles is greater than 1, that is, more than one vehicle exists, the front and rear end points of the overall illumination distance respectively take the farthest front illumination distance calculated according to the vehicle arranged at the forefront and the farthest rear illumination distance calculated according to the vehicle arranged at the last. And the speeds are calculated respectively and then stored in a speed recording module.
Preferably, the above description is directed to the case where the vehicle travels at a constant speed in the tunnel, but most of the time the vehicle does not travel at a constant speed in the tunnel, so that more intelligent dynamic adjustment is required.
Referring to fig. 4, in the case of uneven-speed driving, the control devices of each adjacent lighting device are communicated with each other, after receiving the detection information of the current camera device, the current control device calculates the estimated time for the vehicle to reach the next camera device according to the distance between the current control device and the next camera device and the speed of the detected vehicle, then transmits the time to the next control device, if the next camera device detects the vehicle in advance or detects the vehicle in delay, the delayed time and the detected position of the vehicle are transmitted to the control device of the camera device, and then the control device corrects the control signal according to the received data, so as to realize more intelligent tunnel lighting energy-saving adjustment.
Preferably, the historical average speeds include a first average speed, a second average speed, a third average speed, a fourth average speed, and a fifth average speed. The first average speed is the average speed of all passing vehicles from 0 point to 8 points, the second average speed is the average speed of all passing vehicles from 8 points to 12 points, the third average speed is the average speed of all passing vehicles from 12 points to 16 points, the fourth average speed is the average speed of all passing vehicles from 14 points to 20 points, and the fifth average speed is the average speed of all passing vehicles from 20 points to 24 points, which respectively correspond to the mental state differences of drivers in different time periods.
Preferably, the current running speed of the vehicle is also stored after the current running speed of the vehicle is obtained through calculation, and the current running speed of the vehicle is used as the sub-speed of the passing vehicle of the road section and the time period corresponding to the camera equipment from which the real-time image is obtained; and calculating and acquiring the average speed of all passing vehicles according to the sub-speeds of all the vehicles. The historical speed average value of different time periods is updated once a day, and only the speed record of the detected vehicle in 7 days is kept.
Preferably, only when a vehicle enters the tunnel, the tunnel is required to be illuminated, and when the vehicle does not have any requirement, the tunnel lamp is normally open, which causes large energy consumption, so the invention is provided with: and when the vehicle is not identified, turning on all the lighting devices in the tunnel at intervals of a second preset time period for a third preset time period. In a preferred embodiment, if no vehicle passes through the tunnel within a certain time, the whole tunnel is lighted up once every 5 minutes for 10 seconds, so that the monitoring system can detect events and abnormity in the tunnel.
Preferably, in order to ensure that a driver is not influenced by the illumination difference inside and outside the tunnel, the illumination intensity outside the tunnel is acquired in real time; and adjusting the luminous intensity of the preset number of lighting devices positioned at the two ends of the tunnel in real time according to the illumination intensity outside the tunnel.
In a preferred embodiment, the luminous intensity of the lighting device is not dynamically adjusted by a system in the range of 30 meters at the entrance and the range of 30 meters at the exit in the tunnel, so that the black hole effect or the blinding effect is avoided. Because the light disparity inside and outside the tunnel portal is different in one day, even under different weather conditions, therefore, illuminometers need to be installed inside and outside the tunnel entrance and inside and outside the tunnel exit respectively, the illumination intensity inside and outside the tunnel portal is measured, and the illumination devices in the 30-meter range at the entrance and the 30-meter range at the exit in the tunnel are adjusted according to the measurement values of the illuminometers, so that the similarity of the illumination environment inside and outside the tunnel is ensured, and the traffic accidents caused by the sudden change of the inside and outside visual conditions of the tunnel portal are reduced.
Referring to fig. 3, the present invention also discloses a system for controlling tunnel lighting, which includes a plurality of lighting control modules equidistantly arranged along the length direction in the tunnel, and the plurality of lighting control modules are arranged in cascade. Between two lighting control modules is a road section, each of which comprises:
-lighting devices, each lighting control module comprising one or more lighting devices; the lighting device is annular;
-a camera device for taking real-time images inside the tunnel at intervals of a first preset time period; the road advancing direction is from right to left, a certain effective distance is arranged between each lighting control module, the effective distance refers to the farthest distance that the camera shooting equipment can clearly detect the target, and the difference exists due to the fact that the actual bending degree and the camera shooting equipment definition in the tunnel are different;
-an image processing device for identifying whether a vehicle is present in the real-time image; the distance between the vehicle and the camera equipment can be identified and calculated;
-a control device which, when a vehicle is identified, calculates and acquires the current running speed of the vehicle from more than two real-time images; calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle, and executing turn-on; calculating and acquiring the time of the vehicle reaching the next road section according to the distance between the vehicle and the current camera equipment, and starting the lighting device of the next road section according to the time; and calculating and acquiring the luminous intensity of each lighting device according to the distance of each lighting device in the turned-on lighting devices from the vehicle and the current running speed of the vehicle.
The control device of the illumination control module of different road sections controls the on-off of the illumination devices of different road sections in the tunnel and controls the luminous intensity of each turned-on illumination device.
Referring to fig. 4, in the case of uneven-speed driving, the control devices of each adjacent lighting device are communicated with each other, after receiving the detection information of the current camera device, the current control device calculates the estimated time for the vehicle to reach the next camera device according to the distance between the current control device and the next camera device and the speed of the detected vehicle, then transmits the time to the next control device, if the next camera device detects the vehicle in advance or detects the vehicle in delay, the delayed time and the detected position of the vehicle are transmitted to the control device of the camera device, and then the control device corrects the control signal according to the received data, so as to realize more intelligent tunnel lighting energy-saving adjustment.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.
Claims (10)
1. A method of tunnel lighting control, comprising the steps of:
shooting real-time images in the tunnel by using camera equipment in the tunnel at intervals of a first preset time period;
identifying the real-time images, and calculating and acquiring the current running speed of the vehicle according to more than two real-time images when the vehicle is identified;
calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle, and executing turn-on; calculating and acquiring the time of the vehicle reaching the next road section according to the distance between the vehicle and the current camera equipment, and starting the lighting device of the next road section according to the time;
calculating and acquiring the luminous intensity of each lighting device according to the distance between each lighting device in the turned-on lighting devices and the vehicle and the current running speed of the vehicle;
the vehicle is shot by the camera equipment of different road sections as the vehicle travels different road sections, so that the starting and stopping of the lighting devices of different road sections in the tunnel and the luminous intensity of each turned-on lighting device are controlled.
2. The method of claim 1, wherein the obtaining of the turn-on number of the lighting devices arranged in the length direction in the tunnel according to the historical average speed of the current road segment and the current running speed of the vehicle comprises:
according to the formula L2 max { v/v }m1} v calculating the length of the road section on which the lighting device is distributed; wherein v is the current running speed of the vehicle, vmThe historical average speed of the current road section is obtained;
and acquiring the turn-on number of the lighting devices according to the distance between the lighting devices.
3. The method of claim 1, wherein the calculating and obtaining the luminous intensity of each of the turned-on lighting devices according to the distance from the vehicle and the current driving speed of the vehicle comprises:
according to the formula
Calculating and acquiring the luminous intensity of each of the turned-on lighting devices; wherein x is a distance between the lighting device and the vehicle, x is positive indicating that the lighting device is located in front of the vehicle, x is negative indicating that the lighting device is located behind the vehicle, and v is the current running speed of the vehicle.
4. The method according to claim 2 or 3, wherein the identifying the real-time image, and when a vehicle is identified, the calculating and acquiring the current driving speed of the vehicle according to more than two real-time images comprises:
and when the number of the vehicles is more than 1, calculating and acquiring an average value of the current running speeds of the vehicles which are closest to and farthest from the camera device as the current running speed of the vehicle.
5. The method according to claim 1, wherein the calculating obtains the turn-on number of lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle and performs the turn-on; the time when the vehicle reaches the next road section is calculated and obtained according to the distance between the vehicle and the current camera equipment, and the lighting device of the next road section is turned on according to the time further comprises the following steps:
when the vehicle reaches the next road section, shooting a real-time image of the vehicle according to the camera equipment, calculating and acquiring the current running speed of the vehicle according to the real-time image, calculating and acquiring the number of the lighting devices to be turned on, and executing the calculation.
6. The method of claim 1, wherein the historical average speeds include a first average speed, a second average speed, a third average speed, a fourth average speed, and a fifth average speed; the first average speed is the average speed of all passing vehicles from 0 point to 8 points, the second average speed is the average speed of all passing vehicles from 8 points to 12 points, the third average speed is the average speed of all passing vehicles from 12 points to 16 points, the fourth average speed is the average speed of all passing vehicles from 14 points to 20 points, and the fifth average speed is the average speed of all passing vehicles from 20 points to 24 points;
the calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the tunnel according to the historical average speed of the current road section and the current running speed of the vehicle comprises the following steps:
and calculating and acquiring the turn-on number of the lighting devices arranged in the tunnel along the length direction according to the historical average speed corresponding to the current time and the current running speed of the vehicle.
7. The method of claim 6, wherein the identifying the real-time images and, when a vehicle is identified, calculating and obtaining the current driving speed of the vehicle according to more than two real-time images further comprises:
storing the current running speed of the vehicle, and taking the current running speed as the sub-speed of the passing vehicle of the road section corresponding to the camera equipment from which the real-time image is derived;
and calculating and acquiring the average speed of all passing vehicles according to the sub-speeds of all the vehicles.
8. The method of claim 1, wherein the recognizing the real-time image and calculating and acquiring the current driving speed of the vehicle according to more than two real-time images when the vehicle is recognized further comprises:
and when the vehicle is not identified, turning on all the lighting devices in the tunnel at intervals of a second preset time period for a third preset time period.
9. The method of claim 1, wherein the calculating and obtaining the luminous intensity of each of the turned-on lighting devices according to the distance from the vehicle and the current driving speed of the vehicle further comprises:
acquiring the illumination intensity outside the tunnel in real time;
and adjusting the luminous intensity of the preset number of lighting devices positioned at the two ends of the tunnel in real time according to the illumination intensity outside the tunnel.
10. A system for tunnel lighting control, comprising a plurality of lighting control modules arranged at equal intervals along the length direction in a tunnel, wherein a section is arranged between the lighting control modules, and each lighting control module comprises:
a lighting device, each of the lighting control modules comprising one or more of the lighting devices;
the system comprises a camera device, a server and a server, wherein the camera device takes real-time images in a tunnel at intervals of a first preset time period;
the image processing equipment is used for identifying whether a vehicle exists in the real-time image;
the control equipment calculates and acquires the current running speed of the vehicle according to more than two real-time images when the vehicle is identified; calculating and acquiring the turn-on number of the lighting devices arranged in the length direction in the current road section according to the historical average speed of the current road section and the current running speed of the vehicle, and executing turn-on; calculating and acquiring the time of the vehicle reaching the next road section according to the distance between the vehicle and the current camera equipment, and starting the lighting device of the next road section according to the time; calculating and acquiring the luminous intensity of each lighting device according to the distance between each lighting device in the turned-on lighting devices and the vehicle and the current running speed of the vehicle;
the control device of the lighting control module of different road sections controls the on/off of the lighting devices of different road sections in the tunnel and the luminous intensity of each turned-on lighting device as the vehicle travels different road sections and is photographed by the camera device of the lighting control module of different road sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293853.5A CN113993255A (en) | 2021-11-03 | 2021-11-03 | Tunnel illumination control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293853.5A CN113993255A (en) | 2021-11-03 | 2021-11-03 | Tunnel illumination control method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113993255A true CN113993255A (en) | 2022-01-28 |
Family
ID=79746100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111293853.5A Pending CN113993255A (en) | 2021-11-03 | 2021-11-03 | Tunnel illumination control method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113993255A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176799A (en) * | 2011-01-17 | 2011-09-07 | 贵州大学 | Intelligent illuminating method and device for road tunnel |
| CN102752922A (en) * | 2012-06-25 | 2012-10-24 | 同济大学 | Intelligent road-perceiving LED (Light-Emitting Diode) illuminating controller |
| CN103607830A (en) * | 2013-12-06 | 2014-02-26 | 贵州大学 | Self-adaptive control method and device of LED (Light Emitting Diode) tunnel lamp on road |
| CN109041381A (en) * | 2018-08-17 | 2018-12-18 | 北海飞九天电子科技有限公司 | One kind is based on car speed anticipation vehicle arrival time control Tunnel Lamp brightness control system and its control method |
-
2021
- 2021-11-03 CN CN202111293853.5A patent/CN113993255A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176799A (en) * | 2011-01-17 | 2011-09-07 | 贵州大学 | Intelligent illuminating method and device for road tunnel |
| CN102752922A (en) * | 2012-06-25 | 2012-10-24 | 同济大学 | Intelligent road-perceiving LED (Light-Emitting Diode) illuminating controller |
| CN103607830A (en) * | 2013-12-06 | 2014-02-26 | 贵州大学 | Self-adaptive control method and device of LED (Light Emitting Diode) tunnel lamp on road |
| CN109041381A (en) * | 2018-08-17 | 2018-12-18 | 北海飞九天电子科技有限公司 | One kind is based on car speed anticipation vehicle arrival time control Tunnel Lamp brightness control system and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9336447B2 (en) | Ambient environment determination apparatus | |
| CN108357418B (en) | Preceding vehicle driving intention analysis method based on tail lamp identification | |
| JP4473232B2 (en) | Vehicle front environment detecting device for vehicle and lighting device for vehicle | |
| CN112863201B (en) | Guiding method based on expressway agglomerate fog area multi-stage early warning system | |
| CN110060487A (en) | A kind of control method in city tunnel changeable driveway line of demarcation | |
| CN112399685B (en) | Road street lamp control method and device | |
| CN112397017A (en) | Brightness adjusting method and device for vehicle-mounted LED display screen | |
| CN108806333A (en) | Traffic monitoring method based on street lamp and its device | |
| CN106696815A (en) | Control method, device and system for LED lamps of automobile | |
| CN110956813B (en) | Intelligent light supplementing vehicle snapshot method based on multi-target tracking radar | |
| CN104175945A (en) | Vehicle lamp angle adjusting method and vehicle lamp angle adjusting system | |
| CN112804799A (en) | Energy-saving tunnel safety illumination control system and intelligent control dimming method thereof | |
| US20170061218A1 (en) | Road light monitoring device and monitoring system and monitoring method using same | |
| JP6835149B2 (en) | Information processing equipment and information processing system | |
| CN108470450A (en) | Electronic police Intelligent supplemental lighting system | |
| KR102107319B1 (en) | Apparatus for testing camera module for vehicle | |
| CN114360249A (en) | Fine guide system and passing method under shielding of large vehicle | |
| CN113993255A (en) | Tunnel illumination control method and system | |
| KR102252913B1 (en) | System and method of detecting signal light | |
| KR102515036B1 (en) | System for displaying safe driving guidance information having variable display devices and method thereof | |
| CN115482684A (en) | Safe driving control method and system | |
| JP2005115794A (en) | Guide light unit | |
| JP6151569B2 (en) | Ambient environment judgment device | |
| CN115623642A (en) | Intelligent street lamp management system and control method thereof | |
| CN114724384A (en) | Auxiliary driving system based on automatic detection of traffic signal lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |