CN107896411A - Tunnel illuminating system and its control method - Google Patents
Tunnel illuminating system and its control method Download PDFInfo
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- CN107896411A CN107896411A CN201711289698.3A CN201711289698A CN107896411A CN 107896411 A CN107896411 A CN 107896411A CN 201711289698 A CN201711289698 A CN 201711289698A CN 107896411 A CN107896411 A CN 107896411A
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- 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
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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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
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- 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
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Abstract
The present invention discloses a kind of tunnel illuminating system and its control method, and tunnel illuminating system includes multiple light fixtures, and multiple light fixtures divide multistage from tunnel entrance to tunnel exit, wherein, the control method of tunnel illuminating system comprises the following steps：Obtain each section in tunnel external environment brightness and tunnel of illuminations actually measured；Each section in tunnel of theoretical illumination is determined according to the tunnel external environment brightness of acquisition；The brightness adjustment control strategy according to corresponding to each section in each section in each section in tunnel of illuminations actually measured and tunnel of theoretical illumination matching tunnel；According to corresponding to each section in the tunnel in brightness adjustment control policy control tunnel illuminator corresponding to each section brightness.Technical solution of the present invention can reliably carry out tunnel illumination control.
Description
Technical Field
The invention relates to the technical field of tunnel lighting control, in particular to a tunnel lighting system and a control method thereof.
Background
Along with the development of domestic highways, mountainous tunnels are more and more excavated, and the basic requirements of ensuring equipment maintenance, improving equipment quality and ensuring transportation safety are met by adopting corresponding energy-saving lighting control in the tunnels.
At present, a remote control system is generally adopted in an energy-saving control strategy in a tunnel, and due to the fact that a special remote control system is laid in the remote control system, maintenance personnel can reduce the routing inspection work, but new problems are brought. For example, network equipment is frequently interrupted, so that network maintenance becomes a key factor for tunnel operation, and a certain signal delay still exists in the remote control system, so that emergency cannot be handled in time, and even the whole tunnel operation system cannot work due to paralysis of the remote control system, so that huge loss is caused. Therefore, the energy-saving illumination of the tunnel cannot be stably and reliably controlled by adopting a remote control system.
Disclosure of Invention
The invention mainly aims to provide a control method of a tunnel lighting system, aiming at improving the reliability of energy-saving lighting control of a tunnel.
In order to achieve the above object, the present invention provides a method for controlling a tunnel lighting system, wherein the tunnel lighting system includes a plurality of lamps, and the lamps are divided into a plurality of sections from a tunnel entrance to a tunnel exit; the method comprises the following steps:
s100, acquiring the ambient brightness outside the tunnel and the actually measured illumination of each section in the tunnel; s200, determining theoretical illumination of each section in the tunnel according to the acquired environment brightness outside the tunnel; s300, matching a dimming control strategy corresponding to each section in the tunnel according to the actual measurement illumination of each section in the tunnel and the theoretical illumination of each section in the tunnel; s400, controlling the brightness of the lighting lamp corresponding to each section in the tunnel according to the dimming control strategy corresponding to each section in the tunnel.
Preferably, the lamps are divided into a first inlet reinforcing section, a second inlet reinforcing section, a first transition section, a second transition section, a middle section and an outlet section in sequence from the tunnel inlet to the tunnel outlet according to the tunnel inlet and the tunnel outlet; the tunnel lighting system also comprises a reinforced lighting lamp, and the reinforced lighting lamp is arranged on the first inlet reinforcing section, the second inlet reinforcing section and the outlet section respectively; the control method of the tunnel lighting system further comprises the following steps: s500, determining whether the current time is day or night; s600, when the current time is determined to be daytime, the strengthened lighting lamp is controlled to be turned on; s700, determining that the current time is night, and controlling the enhanced lighting lamp to be turned off.
Preferably, the determining the theoretical illuminance of each section in the tunnel according to the acquired environment brightness outside the tunnel specifically comprises S210, determining whether the acquired environment brightness outside the tunnel is within a dimming threshold range; s220, when the ambient brightness outside the tunnel is within the dimming threshold range, calculating theoretical brightness corresponding to each section in the tunnel according to the acquired ambient brightness outside the tunnel and a preset calculation formula, and determining theoretical illumination of each section in the tunnel according to the theoretical brightness corresponding to each section in the tunnel and a preset reflection coefficient; and S230, when the ambient brightness outside the tunnel is outside the dimming threshold range, calculating the theoretical brightness corresponding to each section in the tunnel according to the upper limit value or the lower limit value of the dimming threshold range and a preset calculation formula, and determining the theoretical illumination of each section in the tunnel according to the theoretical brightness corresponding to each section in the tunnel and a preset reflection coefficient.
Preferably, the matching of the dimming control strategy corresponding to each section in the tunnel according to the measured illuminance of each section in the tunnel and the theoretical illuminance of each section in the tunnel specifically includes: s310, dividing the actual measurement illumination of each section in the tunnel with the theoretical illumination of each section in the tunnel to obtain a corresponding first calculated value; s320, when the first calculated value is-5% -to + 5%, continuing to adopt the current dimming control strategy; s330, when the first calculated value is out of-5% to + 5%, the dimming control strategy corresponding to the first calculated value is obtained and used as the current dimming control strategy.
Preferably, the determining whether the current time is day or night specifically includes: s510, acquiring local longitude and latitude parameters of the tunnel; s520, determining the local sunrise and sunset time according to the acquired longitude and latitude parameters; and S530, determining whether the current time is day or night according to the acquired sunrise and sunset time and the current clock.
The invention also provides a tunnel lighting system which comprises a plurality of lamps, a brightness acquisition module, an illumination acquisition module, a dimming concentrator and a control program of the tunnel lighting system, wherein the control program is stored in a storage of the dimming concentrator and can run on a processor of the dimming concentrator; the brightness acquisition module, the illumination acquisition module and the lamps are all connected with a dimming concentrator; wherein,
the brightness acquisition module is used for acquiring the ambient brightness outside the tunnel and outputting the ambient brightness to the dimming concentrator; the illumination acquisition module is used for acquiring the illumination of each section in the tunnel and outputting the illumination to the dimming concentrator; the control program of the tunnel lighting system, when executed by the processor of the dimming concentrator, implements the steps of the method as described above.
Preferably, the tunnel lighting system further comprises a longitude and latitude acquisition module, and the longitude and latitude acquisition module is used for acquiring local longitude and latitude parameters and outputting the local longitude and latitude parameters to the dimming concentrator.
The control method of the tunnel lighting system comprises the following steps: firstly, acquiring the ambient brightness outside the tunnel and the actually measured illumination of each section in the tunnel; then, determining the theoretical illumination of each section in the tunnel according to the acquired environment brightness outside the tunnel; matching a dimming control strategy corresponding to each section in the tunnel according to the actual measurement illumination of each section in the tunnel and the theoretical illumination of each section in the tunnel; and finally, controlling the brightness of the lighting lamp corresponding to each section in the tunnel according to the dimming control strategy corresponding to each section in the tunnel. Because the technical scheme controls the brightness of each section in the tunnel in real time according to the dimming control strategy according to the ambient brightness outside the tunnel, and the dimming control strategy is stored in the tunnel lighting system, compared with the prior art, the technical scheme provided by the invention has the characteristic of high reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a control method of a tunnel lighting system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a control method of the tunnel lighting system according to another embodiment of the present invention;
FIG. 3 is a schematic view of a detailed process of step S200 in FIG. 1;
FIG. 4 is a schematic view of a detailed process of step S300 in FIG. 1;
FIG. 5 is a schematic view of a detailed process of step S500 in FIG. 2;
fig. 6 is a functional block diagram of a tunnel lighting system according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the descriptions relating to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a control method of a tunnel lighting system.
Referring to fig. 1, in an embodiment of the control method of the tunnel lighting system of the present invention, the tunnel lighting system includes a plurality of lamps, and the lamps are divided into a plurality of sections from a tunnel entrance to a tunnel exit; the method comprises the following steps:
and S100, acquiring the ambient brightness outside the tunnel and the actually measured illumination of each section in the tunnel.
The luminance is the light emission intensity per unit projection area; illuminance means the illuminance of a point on a surface as the ratio of the luminous flux incident on the bin containing the point to the area of the bin.
The environment brightness outside the tunnel is the average brightness obtained by actual measurement of a field of view which is 1.5m away from the ground and is opposite to the tunnel entrance direction by 20 degrees at the position close to the starting point S of the segment.
The purpose of the tunnel lighting segment setting is to meet the requirement for visual change from high brightness to low brightness or from low brightness to high brightness.
And S200, determining the theoretical illumination of each section in the tunnel according to the acquired environment brightness outside the tunnel.
It should be noted that, in order to guarantee the visual demand of the driver in the tunnel, the theoretical illuminance converts the ambient brightness outside the tunnel into the theoretical illuminance of each segment in the tunnel according to the illuminance changed by the preset traffic volume, so as to analyze and compare the actual measured illuminance of each segment in the tunnel, and further determine whether the brightness of each segment in the current tunnel meets the tunnel dimming requirement.
And S300, matching the dimming control strategy corresponding to each section in the tunnel according to the actual measurement illumination of each section in the tunnel and the theoretical illumination of each section in the tunnel.
And comparing the intensity of the obtained theoretical illumination of each section in the tunnel with the actually measured illumination of each section in the tunnel, wherein each section of illumination is matched independently and corresponds to a dimming control strategy.
S400, controlling the brightness of the lighting lamp corresponding to each section in the tunnel according to the dimming control strategy corresponding to each section in the tunnel.
For example, when the theoretical illuminance of a certain section of lighting fixture is greater than the actually-measured illuminance, the dimming control strategy controls the section of lighting fixture to perform light supplement so as to achieve that the theoretical illuminance of each section of lighting fixture matches with the theoretical illuminance.
Through automatically acquiring the ambient brightness outside the tunnel and the ambient brightness of each section in the tunnel, data are converted and compared, the dimming control is automatically performed by utilizing the self control strategy, the problem that the remote control system fails to work and cannot perform energy-saving control is solved, and the reliability of the dimming control is improved.
Referring to fig. 2, in another embodiment of the control method of the tunnel lighting system of the present invention, the lamps are sequentially divided into a first entrance reinforcing section, a second entrance reinforcing section, a first transition section, a second transition section, a middle section and an exit section from a tunnel entrance to a tunnel exit, and the bidirectional traffic tunnel lighting can be divided into entrance section lighting, transition section lighting, middle section lighting and exit section lighting.
The tunnel lighting system further comprises an enhancement lighting fixture, and the control method of the tunnel lighting system further comprises the following steps: s500, determining whether the current time is day or night; s600, when the current time is determined to be daytime, the strengthened lighting lamp is controlled to be turned on; s700, determining that the current time is night, and controlling the enhanced lighting lamp to be turned off.
It should be noted that the first inlet reinforcing section, the second inlet reinforcing section and the outlet section are respectively provided with the reinforced lighting fixture, in order to meet the requirements of tunnel lighting, tunnel lighting is generally divided into a basic lighting lamp, an enhanced lighting lamp and an emergency lighting lamp, wherein the emergency lighting lamp is turned on in emergency, the enhanced lighting lamp is turned on only in the daytime, the ambient brightness outside the tunnel is kept to be zero at night, the enhanced lighting lamp is in a turned-off state, the traffic flow is large in the daytime, and the lights of all sections need to be adapted when a vehicle enters the tunnel, therefore, the automatic dimming control and the starting of the enhanced lighting lamp are required to be carried out in the tunnel at regular time, and at night, the lamps at each section are not adjusted in light to keep the original illumination brightness and are turned off so as to ensure the driving safety and further achieve the aim of energy saving of tunnel illumination, but also can avoid the misoperation condition that the equipment automatically controls and strengthens the lighting lamp at night.
Referring to fig. 3, preferably, the determining the theoretical illuminance of each segment in the tunnel according to the acquired ambient brightness outside the tunnel specifically includes:
and S210, determining whether the acquired environment brightness outside the tunnel is in the dimming threshold range.
It should be noted that, after the control method of the tunnel lighting control system obtains the ambient brightness outside the tunnel, it is first determined whether the ambient brightness outside the tunnel is within the preset dimming threshold range, the lower limit of the dimming threshold is zero, the upper limit of the dimming threshold is determined according to the area percentage of the sky outside the tunnel, the orientation of the tunnel portal, the environment outside the tunnel and the design vehicle speed, the larger the area percentage of the sky outside the tunnel is, the larger the upper limit of the dimming threshold outside the tunnel is, the larger the design vehicle speed is, the larger the upper limit of the dimming threshold outside the tunnel is.
And S220, when the ambient brightness outside the tunnel is within the dimming threshold range, calculating the theoretical brightness corresponding to each section in the tunnel according to the acquired ambient brightness outside the tunnel and a preset calculation formula, and determining the theoretical illumination of each section in the tunnel according to the theoretical brightness corresponding to each section in the tunnel and a preset reflection coefficient.
When the ambient brightness outside the tunnel is within the dimming threshold range, the ambient brightness outside the tunnel obtained by illumination is converted, the ambient brightness outside the tunnel determines the brightness of the inlet section, the brightness of the inlet section determines the brightness of the transition section, and the brightness of the middle section needs to be determined according to the statistical traffic flow and the design vehicle speed, namely, the larger the traffic flow, the larger the brightness of the middle section; the higher the design vehicle speed, the higher the brightness of the middle section, and the brightness of the middle section determines the brightness of the outlet section.
Here, the calculation formula of the luminance of the first inlet reinforcement section and the second inlet section is:
Lth1＝κ×L20(S)
Lth2＝0.5×κ×L20(S)
in the formula, Lth1Representing the brightness of the first inlet segment; l isth2Representing the brightness of the second inlet segment; k represents the reduction coefficient of luminance of the inlet section, L20And (S) represents the ambient brightness outside the tunnel. And the reduction coefficient kappa of the brightness of the inlet section is taken according to the designed traffic flow and the speed of the tunnel.
In tunnels of different lengths, the brightness of the first entrance reinforcing segment and the second entrance segment can be valued according to different percentages of the calculated values.
Meanwhile, the calculation formula of the brightness of the first transition section and the second transition section is as follows:
Ltr1＝0.15×Lth1
Ltr2＝0.05×Lth1
in the formula, Ltr1Representing the brightness of the first transition segment; l istr2Representing the brightness, L, of the second transitionth1Indicating the brightness of the first inlet segment. The brightness of the first transition and the second transition is as follows 3: 1 division.
Meanwhile, the middle section brightness LinAnd taking values according to the designed vehicle speed and the designed vehicle flow of the tunnel.
Meanwhile, the calculation formula of the brightness of the outlet section is as follows:
Lex＝k×Lin
in the formula, LexRepresenting an exit sectionLuminance, LinRepresenting the brightness of the middle segment, k ranges from 3 to 5.
The reflection coefficient between the average brightness and the average illumination intensity needs to be determined by actual measurement; the average illumination and average brightness calculation formula is as follows:
L＝R×E
l represents luminance, R represents reflection coefficient, and E represents illuminance.
Therefore, by the conversion method, the theoretical brightness of each segment in the tunnel can be obtained according to the obtained ambient brightness outside the tunnel.
And S230, when the ambient brightness outside the tunnel is outside the dimming threshold range, calculating the theoretical brightness corresponding to each section in the tunnel according to the upper limit value or the lower limit value of the dimming threshold range and a preset calculation formula, and determining the theoretical illumination of each section in the tunnel according to the theoretical brightness corresponding to each section in the tunnel and a preset reflection coefficient.
When the ambient brightness outside the tunnel is outside the dimming threshold range, namely the ambient brightness outside the tunnel has reached the strongest brightness or the weakest brightness at present, the strongest brightness generally occurs at the noon moment in the daytime, and at the moment, the control method of the tunnel lighting system confirms the theoretical illumination of each section in the tunnel according to the upper limit or the lower limit of the preset threshold and the preset calculation formula.
Referring to fig. 4, preferably, the matching of the dimming control strategy corresponding to each segment in the tunnel according to the actual measurement illuminance of each segment in the tunnel and the theoretical illuminance of each segment in the tunnel specifically includes:
s310, dividing the actual measurement illumination of each section in the tunnel with the theoretical illumination of each section in the tunnel to obtain a corresponding first calculated value;
s320, when the first calculated value is-5% -to + 5%, continuing to adopt the current dimming control strategy;
s330, when the first calculated value is out of-5% to + 5%, the dimming control strategy corresponding to the first calculated value is obtained and used as the current dimming control strategy.
It should be noted that, the first calculated value of the theoretical illuminance of each segment in the tunnel and the measured illuminance of each segment in the tunnel is expressed by the following formula:
in the formula, L1Representing the theoretical illuminance, L, within the tunnel2And M is a first calculated value.
When the first calculated value is between-5% and + 5%, dimming control is not needed, and the current strategy polarity dimming control of the dimming control is adopted; when the first calculated value exceeds-5% to + 5%, dimming processing needs to be performed on each section of lamp in the tunnel, and the smaller the first calculated value is, the higher the dimming precision is, and the better the dimming effect is.
Referring to fig. 5, optionally, the determining whether the current time is day or night specifically includes:
and S510, acquiring local longitude and latitude parameters of the tunnel.
It should be noted that, the longitude and latitude of the location of each tunnel are different, so the measurement must be performed according to the current location when acquiring the longitude and latitude parameters.
S520, determining the local sunrise and sunset time according to the acquired longitude and latitude parameters.
It should be noted that, the longitude and latitude are different, and the sunrise and sunset time are different, and after the spring equinox and before the autumn equinox, the higher the latitude, the earlier the sunrise and the later the sunset, and the local sunrise and sunset time can be calculated according to a preset algorithm.
S530, determining whether the current time is day or night according to the acquired sunrise and sunset time and the current clock, knowing the daytime interval and the night interval after determining the sunrise time and the sunset time, and determining whether the current time is day or night according to which interval the current clock falls in.
As shown in fig. 6, the present invention further provides a tunnel lighting system, which includes a plurality of lamps 40, a brightness collecting module 20, an illuminance collecting module 30, a dimming concentrator 10, and a control program of the tunnel lighting system stored in a memory of the dimming concentrator 10 and operable on a processor of the dimming concentrator 10, wherein the plurality of lamps 40 are divided into a plurality of sections from a tunnel entrance to a tunnel exit; the brightness acquisition module 20, the illumination acquisition module 30 and the plurality of lamps 40 are all connected with the dimming concentrator 10; wherein,
the brightness acquisition module 20 is used for acquiring the ambient brightness outside the tunnel and outputting the ambient brightness to the dimming concentrator;
the illumination acquisition module 30 is used for acquiring actually measured illumination of each section in the tunnel and outputting the actually measured illumination to the dimming concentrator 10;
the control program of the tunnel lighting system, when executed by the processor of the dimming concentrator 10, implements the steps of the method as described above.
According to the tunnel lighting system, the brightness acquisition module 20 acquires the ambient brightness outside the tunnel and the illuminance of each section in the tunnel according to the illuminance acquisition module 30, the brightness acquisition module 20, the illuminance acquisition module 30 and the lamps 40 are all connected with the dimming concentrator 10, the control method of the tunnel lighting system is stored in the dimming concentrator 10, the dimming concentrator 10 stores and processes the received brightness, then corresponding control strategies are output to each section of lighting lamps for dimming control, the dimming concentrator 10 autonomously controls the brightness change and autonomously compensates the brightness of each section in the tunnel, and the reliability is high.
Further, the tunnel lighting system further comprises a longitude and latitude acquisition module 50, the longitude and latitude acquisition module 50 is used for acquiring local longitude and latitude parameters and outputting the local longitude and latitude parameters to the dimming concentrator 10, the dimming concentrator 10 receives the local longitude and latitude parameters for analysis and processing at the same time, and judges whether the current time is day or night, the dimming concentrator 10 controls the enhanced lighting lamp at the entrance to be turned on in the daytime, and the dimming concentrator 10 controls the enhanced lighting lamp at the entrance to be turned off at night, so that misoperation of the tunnel lighting system is prevented.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The control method of the tunnel lighting system is characterized in that the tunnel lighting system comprises a plurality of lamps, and the lamps are divided into a plurality of sections from a tunnel inlet to a tunnel outlet; the method comprises the following steps:
s100, acquiring the ambient brightness outside the tunnel and the actually measured illumination of each section in the tunnel;
s200, determining theoretical illumination of each section in the tunnel according to the acquired environment brightness outside the tunnel;
s300, matching a dimming control strategy corresponding to each section in the tunnel according to the actual measurement illumination of each section in the tunnel and the theoretical illumination of each section in the tunnel;
s400, controlling the brightness of the lighting lamp corresponding to each section in the tunnel according to the dimming control strategy corresponding to each section in the tunnel.
2. The control method of the tunnel lighting system according to claim 1, wherein the plurality of lamps are divided into a first entrance reinforcing section, a second entrance reinforcing section, a first transition section, a second transition section, a middle section and an exit section in sequence from the entrance of the tunnel to the exit of the tunnel; the tunnel lighting system also comprises a reinforced lighting lamp, and the reinforced lighting lamp is arranged on the first inlet reinforcing section, the second inlet reinforcing section and the outlet section respectively; the control method of the tunnel lighting system further comprises the following steps:
s500, determining whether the current time is day or night;
s600, when the current time is determined to be daytime, the strengthened lighting lamp is controlled to be turned on;
s700, determining that the current time is night, and controlling the enhanced lighting lamp to be turned off.
3. The method as claimed in claim 1, wherein the determining the theoretical illuminance of each segment in the tunnel according to the obtained ambient brightness outside the tunnel specifically comprises:
s210, confirming whether the acquired environment brightness outside the tunnel is within a dimming threshold range;
s220, when the ambient brightness outside the tunnel is within the dimming threshold range, calculating theoretical brightness corresponding to each section in the tunnel according to the acquired ambient brightness outside the tunnel and a preset calculation formula, and determining theoretical illumination of each section in the tunnel according to the theoretical brightness corresponding to each section in the tunnel and a preset reflection coefficient;
and S230, when the ambient brightness outside the tunnel is outside the dimming threshold range, calculating the theoretical brightness corresponding to each section in the tunnel according to the upper limit value or the lower limit value of the dimming threshold range and a preset calculation formula, and determining the theoretical illumination of each section in the tunnel according to the theoretical brightness corresponding to each section in the tunnel and a preset reflection coefficient.
4. The method according to claim 3, wherein the matching of the dimming control strategy corresponding to each segment in the tunnel according to the measured illuminance of each segment in the tunnel and the theoretical illuminance of each segment in the tunnel specifically comprises:
s310, dividing the actual measurement illumination of each section in the tunnel with the theoretical illumination of each section in the tunnel to obtain a corresponding first calculated value;
s320, when the first calculated value is-5% -to + 5%, continuing to adopt the current dimming control strategy;
s330, when the first calculated value is out of-5% to + 5%, the dimming control strategy corresponding to the first calculated value is obtained and used as the current dimming control strategy.
5. The method of controlling a tunnel lighting system according to claim 2, wherein the determining whether the current time is day or night specifically comprises:
s510, acquiring local longitude and latitude parameters of the tunnel;
s520, determining the local sunrise and sunset time according to the acquired longitude and latitude parameters;
and S530, determining whether the current time is day or night according to the acquired sunrise and sunset time and the current clock.
6. A tunnel lighting system is characterized by comprising a plurality of lamps, a brightness acquisition module, an illumination acquisition module, a dimming concentrator and a control program of the tunnel lighting system, wherein the control program is stored in a storage device of the dimming concentrator and can run on a processor of the dimming concentrator; the brightness acquisition module, the illumination acquisition module and the lamps are all connected with a dimming concentrator; wherein,
the brightness acquisition module is used for acquiring the ambient brightness outside the tunnel and outputting the ambient brightness to the dimming concentrator;
the illumination acquisition module is used for acquiring the illumination of each section in the tunnel and outputting the illumination to the dimming concentrator;
the control program of the tunnel lighting system, when executed by a processor of the dimming concentrator, implements the steps of the method of any one of claims 1 to 5.
7. The tunnel lighting system of claim 6, further comprising a latitude and longitude acquisition module for acquiring local latitude and longitude parameters and outputting to the dimming concentrator.
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| CN108901110A (en) * | 2018-08-03 | 2018-11-27 | 重庆交通大学 | Energy-saving vcehicular tunnel equivalent illumination control system |
| CN109282894A (en) * | 2018-11-09 | 2019-01-29 | 湖南绿道节能环保科技有限公司 | A kind of Tunnel intraoral illumination quality determining method and device |
| CN111336445A (en) * | 2020-03-25 | 2020-06-26 | 广东勤上半导体照明科技工程有限公司 | Energy-saving street lamp applied to remote area and control method |
| CN111586944A (en) * | 2020-05-29 | 2020-08-25 | 北京交科公路勘察设计研究院有限公司 | Highway tunnel intelligent illumination control system and method based on ETC portal system |
| CN114269056A (en) * | 2020-09-16 | 2022-04-01 | 浙江高圣科技有限公司 | Illumination control method and device |
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