CN114245539A - Tunnel energy-saving control system based on light pipe and optical fiber auxiliary lighting - Google Patents

Tunnel energy-saving control system based on light pipe and optical fiber auxiliary lighting Download PDF

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Publication number
CN114245539A
CN114245539A CN202111579733.1A CN202111579733A CN114245539A CN 114245539 A CN114245539 A CN 114245539A CN 202111579733 A CN202111579733 A CN 202111579733A CN 114245539 A CN114245539 A CN 114245539A
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China
Prior art keywords
tunnel
light
lighting
light guide
illumination intensity
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Granted
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CN202111579733.1A
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Chinese (zh)
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CN114245539B (en
Inventor
贾家银
李晓军
郭孝均
周世均
刘豪
何世永
王程平
李孟桓
朱勇屹
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CHONGQING ZHONGHUAN CONSTRUCTION CO LTD
Chongqing Jiaotong University
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CHONGQING ZHONGHUAN CONSTRUCTION CO LTD
Chongqing Jiaotong University
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Priority to CN202111579733.1A priority Critical patent/CN114245539B/en
Publication of CN114245539A publication Critical patent/CN114245539A/en
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S19/00—Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa
    • F21S19/005—Combining sunlight and electric light sources for indoor illumination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • 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
    • H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
    • 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
    • H05B47/16—Controlling the light source by timing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/10—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type
    • F21V2200/13—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type the light being emitted at the end of the guide
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses a tunnel energy-saving control system based on light guide pipes and optical fiber auxiliary lighting, which comprises a lighting device for providing lighting for driving in a tunnel, auxiliary lighting devices arranged at two entrance and exit sections of the tunnel, a brightness detection device arranged corresponding to the auxiliary lighting devices and used for detecting real-time illumination intensity, an infrared detection device arranged at an entrance of the tunnel and used for detecting a vehicle entrance signal when a vehicle enters the tunnel, a processing module used for a light-on instruction and a light-off instruction and a control module used for controlling the light-on and light-off of the tunnel, so that the effects of turning on and turning off the light when the vehicle comes and the light when the vehicle goes are realized, and the electric energy consumption in the tunnel can be effectively reduced.

Description

Tunnel energy-saving control system based on light pipe and optical fiber auxiliary lighting
Technical Field
The invention relates to the technical field of tunnel energy-saving illumination control, in particular to a tunnel energy-saving control system based on light guide pipes and optical fiber auxiliary illumination.
Background
With the rapid advance of the traffic infrastructure of China, the highway construction enters the times of mountain area construction, the proportion of highway tunnels is larger and larger, the tunnel lighting system is used as an essential part for tunnel construction, and the problems of serious energy consumption, high operation and maintenance cost and the like cause the energy consumption of tunnel lighting to become a heavy burden for the highway traffic operation department.
At present, an LED lamp is usually adopted by a tunnel lighting device to provide lighting for the tunnel, so that in order to ensure the driving safety of the tunnel, the lighting is required to be continuously provided for 24 hours every day and the lighting cannot be performed according to the requirement, thereby causing a great deal of energy waste; moreover, the LED lamp is used as a unique lighting device, and long-term uninterrupted work will also cause the service life of the LED lamp to be reduced, so that the problem of increased maintenance cost for replacement and maintenance of the LED lamp is also caused.
Disclosure of Invention
In view of the above, the present invention provides a tunnel energy saving system based on light guide pipes and optical fiber auxiliary lighting, so as to solve the problems of serious energy waste and high tunnel lighting operation and maintenance cost caused by incapability of lighting as required in the prior art.
In order to achieve the above object, the present invention provides a tunnel energy saving system based on light pipe and optical fiber auxiliary lighting, comprising:
the illuminating devices are uniformly distributed along the length direction of the tunnel and are used for providing illumination for the travelling crane in the tunnel;
the auxiliary lighting device is arranged at the two inlet and outlet sections of the tunnel and used for providing lighting for the driving in the tunnel together with the lighting device;
the brightness detection device is arranged corresponding to the auxiliary lighting device and used for detecting the real-time illumination intensity of the corresponding area in the tunnel in real time, wherein the real-time illumination intensity is the superposition value of the brightness of the lighting device and the brightness of the auxiliary lighting device;
the infrared detection device is arranged at the entrance of the tunnel and is used for detecting a vehicle entrance signal when a vehicle enters the tunnel;
the processing module is used for generating a light-on instruction according to the vehicle entrance signal, generating a light-off instruction when a new vehicle entrance signal is not detected within a preset time interval, and generating a corresponding brightness adjusting instruction according to the real-time illumination intensity and the design illumination intensity of the tunnel; and
the control module is used for controlling the lighting device and/or the auxiliary lighting device in the tunnel to increase the brightness according to the light-on instruction so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during driving, and controlling the lighting device and/or the auxiliary lighting device in the tunnel to decrease the brightness according to the light-off instruction so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during idle; and the controller is also used for adjusting the brightness of the lighting device and/or the auxiliary lighting device according to the brightness adjusting instruction so as to keep the real-time illumination intensity at a stable intensity.
Further, the processing module comprises:
the timing unit is used for starting timing at a preset time interval according to the vehicle driving signal, restarting timing at the preset time interval if the vehicle driving signal is received again before timing is finished, and generating a vehicle driving-out signal if a new vehicle driving signal is not received after timing is finished;
the comparison unit is used for comparing the real-time illumination intensity of the tunnel with the design illumination intensity of the tunnel in the corresponding time period and generating a brightness adjusting signal when the real-time illumination intensity of the tunnel is not equal to the design illumination intensity of the current time period; and
and the command generating unit is used for respectively generating the corresponding light-on command and light-off command according to the vehicle entrance signal and the vehicle exit signal, and generating the brightness adjusting command according to the brightness adjusting signal.
Further, the design illumination intensity of tunnel during driving is reduced gradually and is stabilized and is increased gradually by tunnel interlude to tunnel exit end after a intensity value by tunnel entrance section to tunnel interlude gradually.
Furthermore, the auxiliary lighting device comprises a self-adaptive lighting unit arranged outside the tunnel, a plurality of diffusion units uniformly arranged on the inner top surface of the tunnel and a light guide unit connected with the self-adaptive lighting unit and the diffusion units, wherein the light guide unit is arranged in a mountain body at a corresponding position of the tunnel, one end of the light guide unit extends to the outside of the tunnel and is communicated with the self-adaptive lighting unit, and the other end of the light guide unit extends to the inner top surface of the tunnel and is communicated with the diffusion units; the self-adaptive lighting unit and the diffusion unit are electrically connected with the control module; the self-adaptive lighting unit comprises a light guide lighting assembly arranged outside the tunnel and at least one optical fiber lighting assembly arranged around the light guide lighting assembly.
Furthermore, the light guide pipe lighting assembly comprises a light collecting pipe rotationally connected with the light guide unit, a lighting cover covered outside the light collecting pipe, a first rotator driving the light collecting pipe to rotate according to a preset rule and a waterproof gasket fixedly arranged between the lighting cover and the ground; the first rotator is electrically connected with the control module, and the control module controls the first rotator to drive the light collecting tube to rotate along with the direct angle of the solar rays.
Furthermore, the optical fiber lighting assembly comprises an optical fiber light guide pipe extending into the mountain body and communicated with the light guide unit, a supporting light guide pipe communicated with the optical fiber light guide pipe, an optical fiber group rotatably arranged on the supporting light guide pipe, and a second rotator driving the optical fiber group to rotate according to a preset rule; the second rotator is electrically connected with the control module, and the control module controls the second rotator to drive the optical fiber group to rotate along with the direct incident angle of the solar ray; the optical fiber group comprises a mounting plate and a plurality of optical fiber heads, wherein the mounting plate is connected with the support light guide pipe in a rotating mode, and the optical fiber heads are uniformly arranged on the mounting plate and communicated with the support light guide pipe.
Furthermore, the light guide unit comprises a main light guide assembly and light splitting and guiding assemblies which are arranged in one-to-one correspondence with the diffusion unit and are connected with the main light guide assembly and the diffusion unit, and the light guide tube lighting assembly and the optical fiber lighting assembly are both communicated with the main light guide assembly; the interior interval of main leaded light subassembly is equipped with a plurality of main convex lens, correspond in the main leaded light subassembly with the hookup location department of branch leaded light subassembly is equipped with a main concave lens, and divide the interior interval of leaded light subassembly to be equipped with a plurality of branch convex lens, divide in the leaded light subassembly correspond with the hookup location department of diffusion unit is equipped with a branch concave lens.
Furthermore, the main light guide assembly comprises a plurality of main light guide pipes and a plurality of main corrugated pipes which are arranged at intervals, reflective materials are coated on the inner walls of the main corrugated pipes, and the main convex lenses are coaxially arranged on the inner walls of the corresponding main light guide pipes; divide the leaded light subassembly to include a plurality of branch light pipes and a plurality of bellows that the interval set up, the coating has reflecting material on the inner wall of bellows respectively, just divide the coaxial setting of concave lens on the inner wall that divides the light pipe that corresponds.
Furthermore, the diffusion unit comprises a diffuser communicated with the light splitting and guiding assembly and a light modulator fixedly arranged at the connecting position of the diffuser and the light splitting and guiding assembly, the light modulator is electrically connected with the control module, and the control module is used for controlling the light modulator to adjust the light output of the light splitting and guiding assembly.
Furthermore, the system also comprises a plurality of video acquisition devices and an alarm module which are arranged in the tunnel according to a preset distance;
the video acquisition devices are used for acquiring video images of corresponding areas in the tunnel, and each video acquisition device is provided with a unique image code;
the processing module is also used for judging whether an abnormal condition exists in the tunnel according to the video image and generating an alarm instruction when the abnormal condition exists;
the control module is also used for controlling the lighting device and/or the auxiliary lighting device in the tunnel to keep or improve the brightness to the design lighting intensity of the tunnel in driving according to the alarm instruction;
the alarm module is used for positioning the position of the video acquisition device according to the alarm instruction and the image code corresponding to the video image and carrying out corresponding warning.
The sunlight outside the tunnel is introduced into the tunnel by using the light guide pipe and the optical fiber, so that the sunlight and the illumination device in the tunnel provide illumination for the tunnel together, and the electric energy consumption in the tunnel can be effectively reduced; the infrared detection device is arranged to detect whether a vehicle enters the tunnel to control the illumination condition in the tunnel, so that the effects of turning on the coming vehicle lamp and turning off the going vehicle lamp are realized, and the power consumption in the tunnel can be further reduced; in addition, the illumination intensity in the tunnel is detected in real time by the brightness detection device, the brightness of the lighting device and the auxiliary lighting device can be adjusted in a self-adaptive mode according to the real-time illumination intensity in the tunnel, the illumination intensity in the tunnel is kept in a stable state, the influence of light change on the realization of a driver is avoided, and therefore the driving safety in the tunnel is guaranteed.
Drawings
Fig. 1 is a control block diagram of a tunnel energy-saving control system based on light pipe and fiber-optic auxiliary lighting according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of an installation position of the infrared detection device in fig. 1.
Fig. 3 is a view from the direction of a-a in fig. 2.
Fig. 4 is a view from the direction of B-B in fig. 2.
Fig. 5 is a block diagram of the processing module of fig. 1.
Fig. 6 is a schematic structural diagram of the infrared detection device in fig. 1.
Fig. 7 is a schematic view of an installation structure of the auxiliary lighting device in fig. 1.
Fig. 8 is a schematic structural view of the light pipe lighting assembly in the case of direct sunlight in fig. 7.
Fig. 9 is a schematic structural view of the light guide lighting assembly in fig. 7 when the sun is obliquely incident.
Fig. 10 is a control block diagram of a tunnel energy-saving control system based on light pipe and fiber-optic auxiliary lighting according to embodiment 1 of the present invention.
The drawings are numbered as follows:
the lighting device 1, the LED lamp 11, the auxiliary lighting device 2, the adaptive lighting unit 21, the light guide lighting assembly 211, the light collecting tube 211a, the light collecting cover 211b, the waterproof gasket 211c, the first rotator 211d, the optical fiber lighting assembly 212, the optical fiber head 212a, the supporting light guide 212b, the optical fiber light guide 212c, the mounting plate 212d, the light guide unit 22, the main light guide 221, the main light guide 222, the sub light guide 223, the sub light guide 224, the diffusion unit 23, the diffuser 231, the brightness detection device 3, the infrared detection device 4, the mounting bracket 41, the infrared sensor group 42, the processing module 5, the timing unit 51, the brightness comparison unit 52, the instruction generation unit 53, the control module 6, the main convex lens 71, the main concave lens 72, the sub convex lens 73, the sub concave lens 74, the video acquisition device 8, and the alarm device 9.
Detailed Description
The following is further detailed by way of specific embodiments:
example 1
As shown in fig. 1-4, the tunnel energy-saving control system based on light pipe and optical fiber auxiliary lighting of the present embodiment includes a lighting device 1, an auxiliary lighting device 2, a brightness detection device 3, an infrared detection device 4, a processing module 5 and a control module 6. For ease of understanding, the present embodiment divides the tunnel into a tunnel entrance section, a tunnel intermediate section, and a tunnel exit section according to the location of the tunnel. Specifically, the lighting devices 1 are uniformly distributed on the inner top surface of the whole tunnel along the length direction of the tunnel to provide basic lighting for driving in the tunnel. The auxiliary lighting device 2 is installed on the tunnel inner top surface corresponding to the tunnel inlet section and the tunnel outlet section and used for providing auxiliary lighting for the in-and-out tunnel traveling crane and providing lighting for the traveling crane in the tunnel together with the lighting device 1, and therefore energy consumption of the lighting device 1 is reduced. The brightness detection device 3 and the auxiliary lighting device 2 are arranged on the inner top surface of the tunnel inlet section and the tunnel outlet section or the left side wall and the right side wall of the tunnel in a one-to-one correspondence mode and used for detecting the real-time illumination intensity of corresponding areas in the tunnel, and the real-time illumination intensity is the superposition value of the brightness of the lighting device 1 and the brightness of the auxiliary lighting device 2. The infrared detection device 4 is installed outside the tunnel and at a distance from the tunnel entrance, and is used for detecting vehicles entering the tunnel and generating a vehicle entering signal when detecting that a vehicle enters the tunnel. The processing module 5 generates an instruction of turning on the LED lamp 11 according to the vehicle entrance signal after receiving the vehicle entrance signal and generates an instruction of turning off the LED lamp 11 when a new vehicle entrance signal is not detected within a preset time interval, and the processing module 5 further generates a corresponding brightness adjustment instruction according to the real-time illumination intensity and the design illumination intensity of the tunnel. The control module 6 can control the lighting device 1 and/or the auxiliary lighting device 2 in the tunnel to increase the brightness according to the instruction of turning on the LED lamp 11 so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during driving, and control the lighting device 1 and/or the auxiliary lighting device 2 in the tunnel to decrease the brightness according to the instruction of turning off the LED lamp 11 so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during idle; the control module 6 can also adjust the brightness of the lighting device 1 and/or the auxiliary lighting device 2 according to the brightness adjusting instruction to keep the real-time illumination intensity at a stable intensity, so that the influence of the illumination intensity change on the realization of a driver is avoided. In this embodiment, the designed illumination intensity of the tunnel during driving is set to 70%, and the designed illumination intensity of the tunnel during idle is set to 30%.
The design illumination intensity in tunnel reduces to the tunnel interlude by the tunnel entrance section gradually during the driving and stabilizes at a intensity value back at the tunnel interlude and increases to the tunnel exit end by the tunnel interlude again gradually. In the present embodiment, taking the design illumination intensity of the middle section of the tunnel as 70% of the normal brightness as an example, the designed illumination intensity of the tunnel entrance section can be decreased from the entrance of the tunnel (the designed illumination intensity at the tunnel entrance is more than 70%) to the tunnel by a gradient of 10% or 5% until the designed illumination intensity is decreased to 70%, the designed illumination intensity of the tunnel outlet section can also be gradually decreased from the tunnel outlet to the tunnel interior according to the gradient of 10% or 5% (the designed illumination intensity at the tunnel inlet is more than 70%), so that the illumination intensity in the tunnel is gradually decreased or increased, when the vehicle enters or exits the tunnel, the driver has an adaptive process from light to dark or from dark to light for the illumination intensity, so that the phenomenon that the driving is influenced or even accidents are caused by the black hole effect or the white hole effect when the vehicle enters or exits the tunnel is avoided, and the driving safety of the tunnel is improved. It will be appreciated that in other embodiments, the designed illumination intensities of the tunnel entrance section, the tunnel intermediate section, and the tunnel exit section may be set in other proportions depending on the length of the tunnel and the traffic demands.
As shown in fig. 5, the processing module 5 includes a timing unit 51, a brightness comparison unit 52 and a command generation unit 53. Specifically, the timing unit 51 receives the vehicle entering signal and starts timing at a preset time interval according to the vehicle entering signal, and when a new vehicle entering signal is received again before the timing is finished, the timing unit performs timing at the preset time interval again, and when a new vehicle entering signal is not received after the timing is finished, it indicates that all vehicles in the tunnel exit the tunnel, and at this time, the timing unit 51 generates a vehicle exiting signal.
In this embodiment, the preset time interval is determined by the length of the tunnel, the speed limit of the vehicle traveling in the tunnel, and the installation position of the infrared detection device 4, and the preset time interval may be represented as:
T＝(L+A)/Vt+e (1)
wherein: t is the preset time interval; l is the length of the tunnel; a is the distance between the infrared detection device 4 and the tunnel entrance; vt is the speed limit of the traveling crane in the tunnel; e is a compensation value of a preset time interval, which is used for compensating for differences between driving speeds of different vehicles, and in this embodiment, the value of the compensation value e of the preset time interval is 10 s.
The comparison unit can compare the real-time illumination intensity of the tunnel with the design illumination intensity of the tunnel in the corresponding time period, and generates a brightness adjusting signal when the real-time illumination intensity of the tunnel is not equal to the design illumination intensity of the current time period. When vehicles enter the tunnel (driving) or all the vehicles exit the tunnel (idle), the real-time illumination intensity of the tunnel is compared with the designed illumination intensity of the tunnel when the vehicles are driven and idle respectively, and the brightness adjusting signal is generated when the real-time illumination intensity of the tunnel is not equal to the designed illumination intensity of the tunnel when the vehicles are driven or idle. In this embodiment, the real-time illumination intensity is not equal to the designed illumination intensity of the tunnel during driving or idling, i.e. the real-time illumination intensity is greater than or less than the designed illumination intensity of the tunnel during driving or idling, and in order to ensure that the illumination intensity in the tunnel is maintained at a stable intensity, a brightness adjustment signal needs to be generated when the real-time illumination intensity changes to control the illumination device 1 and/or the auxiliary illumination device 2 to change the brightness so that the real-time illumination intensity is equal to the designed illumination intensity of the tunnel during driving or idling.
The instruction generating unit 53 receives the vehicle entrance signal and the vehicle exit signal, and generates a corresponding instruction to turn on the LED lamp 11 and a corresponding instruction to turn off the LED lamp 11 according to the vehicle entrance signal and the vehicle exit signal. The instruction generating unit 53 may further generate the brightness adjusting instruction according to the brightness adjusting signal, so that the control module 6 may perform a corresponding control operation on the lighting device 1 and/or the auxiliary lighting device 2.
As shown in fig. 6, the infrared detection device 4 includes a mounting bracket 41 symmetrically disposed at the entrance of the tunnel and at least one pair of infrared sensor groups 42 vertically disposed on the mounting bracket 41. In this embodiment, to increase the accuracy of the vehicle entrance judgment, the number of the infrared sensor groups 42 is preferably two, and when there is a detection signal in both of the two infrared sensor groups 42, the corresponding vehicle entrance signal is only sent. In a specific implementation, when the infrared detection device 4 determines a vehicle entering the tunnel, when the vehicle enters and blocks the infrared light generated by one of the infrared sensor groups 42, the infrared sensor group 42 generates an electric signal, the vehicle moves forward, and when the infrared sensor group 42 continues to block the other infrared sensor group, the infrared sensor group generates an electric signal, and if a time interval between two times of generation of the electric signal is less than t ═ 2/Vt, it indicates that the vehicle enters, and at this time, a vehicle entering signal is generated.
In other embodiments, the infrared detection devices 4 may be disposed at both the tunnel entrance and the tunnel exit, and whether the vehicle exits the tunnel within a preset time interval may be determined by the infrared detection device 4 at the tunnel exit.
The lighting device 1 comprises N groups of LED lamps 11 uniformly arranged along the length direction of the tunnel, wherein the N groups of LED lamps 11 are electrically connected with the control module 6, so that the control module 6 can control the brightness of the LED lamps 11 according to an LED lamp 11 opening instruction, an LED lamp 11 closing instruction and a brightness adjusting instruction. In this embodiment, energy saving and the service life of the led lamp 11 are considered comprehensively, the brightness adjustment range of the led lamp 11 is 0% -70%, when the brightness of the led lamp 11 is 0%, 70% of the designed illumination intensity of the tunnel in driving or 30% of the designed illumination intensity of the tunnel in idle can be provided by the auxiliary illumination device 2, and when the brightness of the led lamp 11 is 70%, 70% of the designed illumination intensity of the tunnel in driving is provided by the led lamp 11, so that energy saving control of illumination in the tunnel is realized.
As shown in fig. 7, the auxiliary lighting device 2 includes an adaptive lighting unit 21, a light guiding unit 22 and a plurality of diffusing units 23, specifically, the adaptive lighting unit 21 is installed on the surface of the corresponding mountain outside the tunnel and electrically connected to the control module 6, and the adaptive lighting unit 21 can adaptively collect sunlight under the control of the control module 6; the light guide unit 22 is arranged in the mountain body at the corresponding position of the tunnel, the mountain body surface of which one end extends to the outside of the tunnel is communicated with the adaptive lighting unit 21, the other end of the light guide unit is provided with light splitting ports which are arranged in one-to-one correspondence with the diffusion unit 23, the light splitting ports extend to the inner top surface of the tunnel and are communicated with the diffusion unit 23, and the light splitting ports are used for transmitting the sunlight collected by the adaptive lighting unit 21 into the diffusion unit 23; the plurality of diffusion units 23 are uniformly arranged on the top surface in the tunnel and electrically connected with the control module 6, and the diffusion units 23 are used for diffusing sunlight transmitted by the light guide unit 22 into the tunnel to increase the illumination intensity in the tunnel and adjust the light flux under the control of the control module 6. In the present embodiment, the auxiliary lighting device 2 is disposed at the corresponding position of the tunnel entrance section and the tunnel exit section, it can be understood that in other embodiments, depending on the distance between the tunnel ceiling and the mountain surface and the energy saving requirement, the auxiliary lighting device 2 may also be extended to the middle section of the tunnel or the auxiliary lighting device 2 may be disposed in the whole tunnel to further reduce the power consumption of the lighting device 1.
The adaptive lighting unit 21 includes a light guide lighting assembly 211 installed outside the tunnel and at least one optical fiber lighting assembly 212 arranged around the light guide lighting assembly 211, and both the light guide lighting assembly 211 and the optical fiber lighting assembly 212 are used for collecting sunlight. In this embodiment, four sets of optical fiber lighting assemblies 212 are disposed, and the four sets of optical fiber lighting assemblies 212 are disposed around the light guide lighting assembly 211 to increase the lighting efficiency.
The light guide tube lighting assembly 211 comprises a light collecting tube 211a, a lighting cover 211b, a waterproof gasket 211c and a first rotator 211d, wherein a lighting port is formed at the top of the light collecting tube 211a and used for collecting sunlight and guiding the collected sunlight into the light guide unit 22, and the light collecting tube 211a is rotatably connected with the light guide unit 22, so that the lighting port can rotate according to a preset rule, and the light flux entering the light guide unit 22 is improved. The light collecting cover 211b covers the light collecting tube 211a, and is used for providing a good environment for the light collecting tube 211a to collect sunlight so that the sunlight can smoothly enter the light collecting tube 211a, and meanwhile, preventing foreign matters or unknown objects from entering the light collecting tube 211a and causing unnecessary damage to the whole light guide tube lighting assembly 211. The waterproof gasket 211c is fixed between the light collecting cover 211b and the ground, and is used for sealing the light collecting cover 211b to prevent moisture from entering the light collecting tube 211a to affect the sunlight collecting efficiency of the light collecting tube 211 a. The first rotator 211d is disposed on the light collecting tube 211a and electrically connected to the control module 6, and the first rotator 211d can drive the light collecting tube 211a to rotate along with the direct angle of the sunlight (as shown in fig. 8-9) under the control of the control module 6, so that the light collecting tube 211a can absorb the sunlight to the maximum extent, and the light flux entering the light collecting tube 211a is increased.
The optical fiber lighting assembly 212 includes an optical fiber set, a supporting light pipe 212b, an optical fiber light pipe 212c and a second rotator (not shown in the figure), the optical fiber set includes a mounting plate 212d and a plurality of optical fiber heads 212a uniformly arranged on the mounting plate 212d, and the optical fiber heads 212a are used for collecting sunlight. The mounting plate 212d is rotatably disposed on the supporting light pipe 212b so as to adjust the angle of the fiber head 212a, so that the fiber head 212a can rotate along with the direct sunlight angle, thereby increasing the luminous flux. The fiber optic heads 212a are each in communication with the supporting light pipe 212b to direct collected sunlight into the supporting light pipe 212 b. One end of the supporting light pipe 212b, which is far away from the mounting plate 212d, is communicated with one end of the optical fiber light pipe 212c, and the other end of the optical fiber light pipe 212c extends into the mountain body to be communicated with the light guide unit 22, so that sunlight collected by the optical fiber head 212a can be guided into the light guide unit 22 along the supporting light pipe 212b and the optical fiber light pipe. The second rotator is arranged at a position corresponding to the mounting plate 212d and electrically connected with the control module 6, and the second rotator can drive the mounting plate 212d to rotate along with the direct incident angle of the solar ray under the control of the control module 6, so that the optical fiber head 212a can absorb sunlight to the maximum extent, and further the luminous flux entering the optical fiber head 212a is improved.
In the embodiment, the rotation process of the first rotator 211d and the second rotator is a continuously changing process, that is, under the irradiation of sunlight, the whole first rotator 211d can make the lighting opening always be in the position facing to the sunlight to make the obtained luminous flux maximum, and the second rotator can make the optical fiber head 212a always be in the position facing to the sunlight to make the obtained luminous flux maximum. The preset rule that the first rotator 211d and the second rotator drive the light collecting tube 211a or the mounting plate 212d to rotate can set a specified angle of rotation every minute according to the movement rule of the sun, so that the daylight opening and the optical fiber head 212a can be always in the position facing the sun.
The light guide unit 22 includes a main light guide assembly and a plurality of light splitting and guiding assemblies, the light guide tube lighting assembly 211 and the optical fiber lighting assembly 212 are both communicated with the main light guide assembly, and specifically, the light collecting tube 211a of the light guide tube lighting assembly 211 and the optical fiber light guide tube 212c of the optical fiber lighting assembly 212 are connected to the main light guide assembly to guide the sunlight collected by the light collecting tube 211a and the optical fiber head 212a into the main light guide assembly. The other end of the main light guide assembly is provided with a plurality of connecting ends, the light splitting and guiding assemblies are connected to the connecting ends in a one-to-one correspondence mode, and the other ends of the light splitting and guiding assemblies are communicated with the diffusion units 23 in a one-to-one correspondence mode, so that sunlight transmitted in the main light guide assembly can enter the light splitting and guiding assemblies respectively and is transmitted to the diffusion units 23 through the light splitting and guiding assemblies to be diffused into the tunnel.
The main light guide assembly comprises a plurality of main light guide pipes 221 and a plurality of main corrugated pipes 222 which are arranged at intervals, and reflective materials are coated on the inner walls of the main corrugated pipes 222, so that sunlight can be reflected by the inner walls of the main corrugated pipes 222 to be continuously transmitted forwards when the sunlight irradiates the inner walls of the main corrugated pipes 222. The light splitting and guiding assembly comprises a plurality of light splitting and guiding pipes 223 and a plurality of sub corrugated pipes 224 which are arranged at intervals, and reflective materials are coated on the inner walls of the respective corrugated pipes, so that sunlight can be reflected by the inner walls of the sub corrugated pipes 224 to be continuously transmitted forwards when the sunlight irradiates the inner walls of the sub corrugated pipes 224. In addition, in this embodiment, the main light guiding assembly and the light splitting guiding assembly are respectively provided with the multi-segment main corrugated tube 222 and the multi-segment sub corrugated tube 224, so that when the main light guiding assembly and the light splitting guiding assembly are installed, the main light guiding assembly and the light splitting guiding assembly can adapt to different installation environments and installation positions by stretching or shrinking the length of the main corrugated tube 222 or the sub corrugated tube 224, and the light guiding unit 22 has higher universality.
In this embodiment, in order to increase the efficiency of the main light guiding assembly and the light splitting and guiding assembly for collecting and diffusing sunlight, a plurality of main convex lenses 71 are arranged at intervals in the main light guiding assembly (the main convex lenses 71 are coaxially arranged on the inner walls of the corresponding main light guiding tubes 221), and the main convex lenses 71 can converge sunlight entering the main light guiding assembly, so as to increase the utilization rate of the sunlight; a main concave lens 72 is arranged at a position corresponding to the connection position of the main light guide assembly and the light splitting and guiding assembly, and the main concave lens 72 can disperse sunlight transmitted by the main light guide assembly and then inject the sunlight into the light splitting and guiding assembly, so that each light splitting and guiding assembly can obtain light fluxes with different amounts. Similarly, a plurality of convex splitting lenses 73 are arranged in the light splitting and guiding assembly at intervals (the concave splitting lenses 74 are coaxially arranged on the inner walls of the corresponding light splitting and guiding pipes 223), and the concave splitting lenses 74 can converge sunlight entering the light splitting and guiding assembly so as to increase the utilization rate of the sunlight; a concave splitting lens 74 is arranged at a position corresponding to the connection position of the diffusion unit 23 in the light splitting and guiding assembly, and the concave splitting lens 74 can split the sunlight transmitted by the light splitting and guiding assembly and then inject the sunlight into the diffusion unit 23, so that the splitting effect of the sunlight is increased.
The diffusion unit 23 includes a diffuser 231 and a light modulator (not shown), the diffuser 231 is communicated with the light splitting and guiding assembly, and is used for diffusing the sunlight transmitted by the light splitting and guiding assembly into the tunnel, so as to form a surface light source with comfortable human perception at the corresponding position, and a local light condensation phenomenon is not generated. The light modulator is arranged at the position where the diffuser 231 is connected with the light splitting and guiding assembly, and the light modulator is electrically connected with the control module 6, so that the control module 6 can control the light modulator to adjust the light output of the light splitting and guiding assembly, and further adjust the real-time illumination intensity of the tunnel to achieve the design illumination intensity of the tunnel.
In the embodiment, during operation, sunlight enters the light guide unit 22 through the light guide tube lighting assembly 211 and the optical fiber lighting assembly 212, and is transmitted to the diffusion unit 23 through the light guide unit 22, and the diffusion unit 23 diffuses the sunlight into the tunnel, and in this process, the brightness detection device 3 continuously detects the real-time illumination intensity in the tunnel. When a vehicle runs to the entrance of the tunnel, the infrared detection device 4 detects that the vehicle runs into the tunnel to generate a vehicle running-in signal, the instruction generation unit 53 generates an instruction of turning on the LED lamp 11 according to the vehicle running-in signal and triggers the timing unit 51 to start timing, at the moment, the control module 6 receives the instruction of turning on the LED lamp 11 and controls the lighting device 1 and/or the auxiliary lighting device 2 in the tunnel to increase the brightness according to the real-time illumination intensity detected by the brightness detection device 3, so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during running, and lighting is provided for running in the tunnel. After the timing unit 51 finishes timing, the instruction generating unit 53 generates an instruction to turn off the LED lamp 11, at this time, the control module 6 receives the instruction to turn off the LED lamp 11 and controls the lighting device 1 and/or the auxiliary lighting device 2 in the tunnel to reduce the brightness according to the real-time illumination intensity detected by the brightness detection device 3, so that the real-time illumination intensity in the tunnel reaches the designed illumination intensity of the tunnel at the idle time, thereby reducing the energy consumption in the tunnel.
The lighting device 1 and the auxiliary lighting device 2 of this embodiment are preferably adopted the auxiliary lighting device 2 to illuminate when the cooperation is lighted, and when the illumination intensity that the auxiliary lighting device 2 provided was not enough to reach design illumination intensity, just control lighting device 1 and promote luminance and throw light on jointly, can effectively reduce lighting device 1's in the tunnel power consumption.
Example 2
Fig. 10 is a control block diagram of the tunnel energy saving system based on light pipe and fiber-optic auxiliary lighting according to the present embodiment. The present embodiment includes an illumination device 1, an auxiliary illumination device 2, a brightness detection device 3, an infrared detection device 4, a processing module 5 and a control module 6 which are the same or similar in structure and function to those of embodiment 1. The difference between the present embodiments is:
the embodiment further comprises an alarm module and a plurality of video acquisition devices 8, wherein the video acquisition devices 8 are installed in the tunnel according to preset distances and used for acquiring video images of corresponding areas in the tunnel, and each video acquisition device 8 is provided with a unique image code for the acquired video images. In this embodiment, the video capture device 8 may be a video capture device 8 such as a camera or a video camera. The processing module 5 is further configured to determine whether an abnormal condition exists in the tunnel according to the video image, and generate an alarm instruction when the abnormal condition exists. The alarm module is used for positioning the position of the video acquisition device 8 according to the alarm instruction and the image code corresponding to the video image, and carrying out corresponding warning. In this embodiment, the alarm mode may be an audible alarm, an LED lamp 11 light alarm, or a combination of both. At this moment, the control module 6 can control the lighting device 1 and/or the auxiliary lighting device 2 in the tunnel to keep or improve the brightness to the designed lighting intensity of the tunnel during driving according to the alarm instruction, further prompts related personnel that abnormal conditions occur in the tunnel, and needs to be checked in time.
This embodiment is through setting up alarm module, and when the abnormal conditions appeared in the tunnel, alarm module can be through audible alarm, 11 light alarms on LED lamp or the two combines the suggestion relevant personnel to notice for relevant personnel can in time take counter-measure, can improve the security of tunnel driving.

Claims (10)

1. Tunnel energy-saving control system based on light pipe and optic fibre auxiliary lighting, characterized by includes:
the illuminating devices are uniformly distributed along the length direction of the tunnel and are used for providing illumination for the travelling crane in the tunnel;
the auxiliary lighting device is arranged at the two inlet and outlet sections of the tunnel and used for providing lighting for the driving in the tunnel together with the lighting device;
the brightness detection device is arranged corresponding to the auxiliary lighting device and used for detecting the real-time illumination intensity of the corresponding area in the tunnel in real time, wherein the real-time illumination intensity is the superposition value of the brightness of the lighting device and the brightness of the auxiliary lighting device;
the infrared detection device is arranged at the entrance of the tunnel and is used for detecting a vehicle entrance signal when a vehicle enters the tunnel;
the processing module is used for generating a light-on instruction according to the vehicle entrance signal, generating a light-off instruction when a new vehicle entrance signal is not detected within a preset time interval, and generating a corresponding brightness adjusting instruction according to the real-time illumination intensity and the design illumination intensity of the tunnel; and
the control module is used for controlling the lighting device and/or the auxiliary lighting device in the tunnel to increase the brightness according to the light-on instruction so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during driving, and controlling the lighting device and/or the auxiliary lighting device in the tunnel to decrease the brightness according to the light-off instruction so that the real-time illumination intensity in the tunnel reaches the design illumination intensity of the tunnel during idle; and the controller is also used for adjusting the brightness of the lighting device and/or the auxiliary lighting device according to the brightness adjusting instruction so as to keep the real-time illumination intensity at a stable intensity.
2. The light pipe and fiber optic assisted lighting based tunnel economizer control system of claim 1 wherein the processing module comprises:
the timing unit is used for starting timing at a preset time interval according to the vehicle driving signal, restarting timing at the preset time interval if the vehicle driving signal is received again before timing is finished, and generating a vehicle driving-out signal if a new vehicle driving signal is not received after timing is finished;
the comparison unit is used for comparing the real-time illumination intensity of the tunnel with the design illumination intensity of the tunnel in the corresponding time period and generating a brightness adjusting signal when the real-time illumination intensity of the tunnel is not equal to the design illumination intensity of the current time period; and
and the command generating unit is used for respectively generating the corresponding light-on command and light-off command according to the vehicle entrance signal and the vehicle exit signal, and generating the brightness adjusting command according to the brightness adjusting signal.
3. A tunnel energy-saving control system based on light pipes and fiber-optic auxiliary lighting according to claim 1, characterized in that: the design illumination intensity of tunnel during the driving is reduced gradually and is stabilized and is increased gradually by tunnel interlude to tunnel exit end after a intensity value by tunnel entrance section to tunnel interlude gradually.
4. A tunnel energy-saving control system based on light pipes and fiber-optic auxiliary lighting according to claim 1, characterized in that: the auxiliary lighting device comprises a self-adaptive lighting unit arranged outside the tunnel, a plurality of diffusion units uniformly arranged on the inner top surface of the tunnel and a light guide unit connected with the self-adaptive lighting unit and the diffusion units, wherein the light guide unit is arranged in a mountain body at a corresponding position of the tunnel, one end of the light guide unit extends to the outside of the tunnel and is communicated with the self-adaptive lighting unit, and the other end of the light guide unit extends to the inner top surface of the tunnel and is communicated with the diffusion units; the self-adaptive lighting unit and the diffusion unit are electrically connected with the control module; the self-adaptive lighting unit comprises a light guide lighting assembly arranged outside the tunnel and at least one optical fiber lighting assembly arranged around the light guide lighting assembly.
5. The tunnel energy-saving control system based on the light pipe and the fiber-optic auxiliary lighting is characterized in that: the light guide pipe lighting assembly comprises a light collecting pipe rotationally connected with the light guide unit, a lighting cover covered outside the light collecting pipe, a first rotator driving the light collecting pipe to rotate according to a preset rule and a waterproof gasket fixedly arranged between the lighting cover and the ground; the first rotator is electrically connected with the control module, and the control module controls the first rotator to drive the light collecting tube to rotate along with the direct angle of the solar rays.
6. The tunnel energy-saving control system based on the light pipe and the fiber-optic auxiliary lighting is characterized in that: the optical fiber lighting assembly comprises an optical fiber light guide pipe extending into the mountain body and communicated with the light guide unit, a supporting light guide pipe communicated with the optical fiber light guide pipe, an optical fiber group rotatably arranged on the supporting light guide pipe and a second rotator driving the optical fiber group to rotate according to a preset rule; the second rotator is electrically connected with the control module, and the control module controls the second rotator to drive the optical fiber group to rotate along with the direct incident angle of the solar ray; the optical fiber group comprises a mounting plate and a plurality of optical fiber heads, wherein the mounting plate is connected with the support light guide pipe in a rotating mode, and the optical fiber heads are uniformly arranged on the mounting plate and communicated with the support light guide pipe.
7. The tunnel energy-saving control system based on the light pipe and the fiber-optic auxiliary lighting is characterized in that: the light guide unit comprises a main light guide assembly and light splitting and guiding assemblies which are arranged in one-to-one correspondence with the diffusion unit and are connected with the main light guide assembly and the diffusion unit, and the light guide pipe lighting assembly and the optical fiber lighting assembly are communicated with the main light guide assembly; the interior interval of main leaded light subassembly is equipped with a plurality of main convex lens, correspond in the main leaded light subassembly with the hookup location department of branch leaded light subassembly is equipped with a main concave lens, and divide the interior interval of leaded light subassembly to be equipped with a plurality of branch convex lens, divide in the leaded light subassembly correspond with the hookup location department of diffusion unit is equipped with a branch concave lens.
8. A tunnel energy-saving control system based on light pipes and fiber-optic auxiliary lighting according to claim 7, characterized in that: the main light guide assembly comprises a plurality of main light guide pipes and a plurality of main corrugated pipes which are arranged at intervals, reflective materials are coated on the inner walls of the main corrugated pipes, and the main convex lenses are coaxially arranged on the inner walls of the corresponding main light guide pipes; divide the leaded light subassembly to include a plurality of branch light pipes and a plurality of bellows that the interval set up, the coating has reflecting material on the inner wall of bellows respectively, just divide the coaxial setting of concave lens on the inner wall that divides the light pipe that corresponds.
9. The tunnel energy-saving control system based on the light pipe and the fiber-optic auxiliary lighting is characterized in that: the diffusion unit comprises a diffuser communicated with the light splitting and guiding assembly and a light modulator fixedly arranged at the connecting position of the diffuser and the light splitting and guiding assembly, the light modulator is electrically connected with the control module, and the control module is used for controlling the light modulator to adjust the light output of the light splitting and guiding assembly.
10. A tunnel energy-saving control system based on light pipes and fiber-optic auxiliary lighting according to claim 1, characterized in that: the system also comprises a plurality of video acquisition devices and an alarm module which are arranged in the tunnel according to a preset distance;
the video acquisition devices are used for acquiring video images of corresponding areas in the tunnel, and each video acquisition device is provided with a unique image code;
the processing module is also used for judging whether an abnormal condition exists in the tunnel according to the video image and generating an alarm instruction when the abnormal condition exists;
the control module is also used for controlling the lighting device and/or the auxiliary lighting device in the tunnel to keep or improve the brightness to the design lighting intensity of the tunnel in driving according to the alarm instruction;
the alarm module is used for positioning the position of the video acquisition device according to the alarm instruction and the image code corresponding to the video image and carrying out corresponding warning.
CN202111579733.1A 2021-12-22 2021-12-22 Tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination Active CN114245539B (en)

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