CN114245539B - Tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination - Google Patents
Tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination Download PDFInfo
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- CN114245539B CN114245539B CN202111579733.1A CN202111579733A CN114245539B CN 114245539 B CN114245539 B CN 114245539B CN 202111579733 A CN202111579733 A CN 202111579733A CN 114245539 B CN114245539 B CN 114245539B
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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 and optical fiber auxiliary illumination, which comprises an illumination device for providing illumination for traveling in a tunnel, auxiliary illumination devices arranged at two entrance sections of the tunnel, a brightness detection device which is arranged corresponding to the auxiliary illumination devices and used for detecting real-time illumination intensity, an infrared detection device which is arranged at the entrance of the tunnel and used for detecting a vehicle entrance signal of a vehicle entering the tunnel, a processing module for a lamp on command and a lamp off command, and a control module for controlling the lamp on and off of the tunnel, so as to realize the effects of lighting and extinguishing of the vehicle on and off, and effectively reduce the electric energy consumption in the tunnel.
Description
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 pipe and optical fiber auxiliary illumination.
Background
Along with the rapid promotion of the traffic infrastructure in China, the highway construction enters the mountain construction era, the proportion of highway tunnels is larger and larger, and the tunnel illumination system is used as an indispensable part of the tunnel construction, so that the problems of serious energy consumption, high operation and maintenance cost and the like cause the tunnel illumination energy consumption to be a heavy burden of highway traffic operation departments.
At present, an LED lamp is generally adopted by a lighting device of a tunnel to provide lighting for the tunnel, so that the lighting is required to be provided continuously for 24 hours a day under the normal condition to ensure the driving safety of the tunnel, and the lighting device cannot provide lighting as required, so that a great amount of energy waste is caused; in addition, the LED lamp is used as the only lighting device, and the service life of the LED lamp is reduced due to long-term uninterrupted operation, so that the problem of increased maintenance cost caused by replacement and maintenance of the LED lamp is solved.
Disclosure of Invention
Therefore, the invention aims to provide a tunnel energy-saving system based on light pipe and optical fiber auxiliary illumination, which solves the problems of serious energy waste and high tunnel illumination operation and maintenance cost caused by incapability of illumination on demand 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 illumination, comprising:
the illumination devices are uniformly distributed along the length direction of the tunnel and are used for providing illumination for travelling crane in the tunnel;
the auxiliary lighting devices are arranged at two entrance sections of the tunnel and are used for providing illumination for travelling crane in the tunnel together with the lighting devices;
the brightness detection device is arranged corresponding to the auxiliary lighting device and is used for detecting the real-time illumination intensity of a corresponding area in the tunnel in real time, wherein the real-time illumination intensity is a 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 of a vehicle entering the tunnel;
the processing module is used for generating a lamp-on instruction according to the vehicle entrance signal, generating a lamp-off instruction when a new vehicle entrance signal is not detected within a preset time interval, and generating a corresponding brightness adjustment instruction according to the real-time illumination intensity and the designed 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 lighting instruction so that the real-time illumination intensity in the tunnel reaches the designed 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 lighting instruction so that the real-time illumination intensity in the tunnel reaches the designed illumination intensity of the tunnel during idle; and the device 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 includes:
the timing unit is used for starting timing according to the vehicle entrance signal at a preset time interval, restarting timing at the preset time interval if the vehicle entrance signal is received again before the timing is finished, and generating a vehicle exit signal if the new vehicle entrance signal is not received after the timing is finished;
the comparison unit is used for comparing the real-time illumination intensity of the tunnel with the designed illumination intensity of the tunnel in the corresponding period, and generating a brightness adjustment signal when the real-time illumination intensity of the tunnel is not equal to the designed illumination intensity in the current period; and
the instruction generating unit is used for respectively generating the corresponding lamp-on instruction and lamp-off instruction according to the vehicle driving-in signal and the vehicle driving-out signal, and generating the brightness adjusting instruction according to the brightness adjusting signal.
Furthermore, the designed illumination intensity of the tunnel during driving is gradually reduced from the tunnel entrance section to the tunnel middle section and is gradually increased from the tunnel middle section to the tunnel exit end after being stabilized at an intensity value.
Further, the auxiliary lighting device comprises an 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 adaptive lighting unit and the diffusion units, wherein the light guide unit is arranged in a mountain at a corresponding position of the tunnel, one end of the light guide unit extends out of the tunnel and is communicated with the 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 pipe lighting component arranged outside the tunnel and at least one optical fiber lighting component arranged around the light pipe lighting component.
Further, the light pipe lighting component comprises a light collecting pipe, a lighting cover, a first rotator and a waterproof gasket, wherein the light collecting pipe is rotationally connected with the light guiding unit, the lighting cover is covered outside the light collecting pipe, the first rotator drives the light collecting pipe to rotate according to a preset rule, and the waterproof gasket is 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.
Further, the optical fiber lighting component comprises an optical fiber light guide pipe extending into the mountain 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 for 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 angle of the solar rays; the optical fiber group comprises a mounting plate which is rotationally connected with the supporting light guide pipe and a plurality of optical fiber heads which are uniformly arranged on the mounting plate and are communicated with the supporting light guide pipe.
Further, the light guide unit comprises a main light guide component and a light splitting and guiding component which is arranged in one-to-one correspondence with the diffusion unit and is connected with the main light guide component and the diffusion unit, and the light guide lighting component and the optical fiber lighting component are communicated with the main light guide component; a plurality of main convex lenses are arranged in the main light guide assembly at intervals, a main concave lens is arranged in the main light guide assembly at the position corresponding to the connection position of the light guide assembly, and a plurality of convex sub-lenses are arranged in the light-splitting and guiding assembly at intervals, and a concave sub-lens is arranged in the light-splitting and guiding assembly at the position corresponding to the connection position of the diffusion unit.
Further, the main light guiding assembly comprises a plurality of main light guiding pipes and a plurality of main corrugated pipes which are arranged at intervals, the inner wall of each main corrugated pipe is coated with a reflective material, and the main convex lenses are coaxially arranged on the inner wall of the corresponding main light guiding pipe; the light splitting and guiding assembly comprises a plurality of light splitting and guiding pipes and a plurality of corrugated splitting pipes which are arranged at intervals, the inner walls of the corrugated splitting pipes are coated with reflective materials, and the concave lenses are coaxially arranged on the inner walls of the corresponding light splitting and guiding pipes.
Further, the diffusion unit comprises a diffuser communicated with the light-splitting and guiding assembly and a light modulator fixedly arranged at the connection position of the diffuser and the light-splitting and guiding assembly, the light modulator is electrically connected with a 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.
Further, the system also comprises a plurality of video acquisition devices and an alarm module which are arranged in the tunnel according to the preset distance;
the video acquisition devices are used for acquiring video images of corresponding areas in the tunnels, and each acquired video image of each video acquisition device is configured 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 maintain or improve the brightness to the designed lighting intensity of the tunnel during 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.
According to the scheme, sunlight outside the tunnel is led into the tunnel by using the light guide pipe and the optical fiber, so that the sunlight and the lighting device in the tunnel can jointly provide lighting for the tunnel, 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 or not so as to control the illumination condition in the tunnel, so that the effect of lighting and extinguishing the vehicle running light is realized, and the electric energy 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 illumination device and the auxiliary illumination device can be adaptively adjusted according to the real-time illumination intensity in the tunnel, so that 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 the driving safety in the tunnel is ensured.
Drawings
Fig. 1 is a control block diagram of a tunnel energy-saving control system based on light pipe and fiber auxiliary illumination 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 A-A of 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 a mounting structure of the auxiliary lighting device of fig. 1.
Fig. 8 is a schematic view of the light guide tube lighting assembly of fig. 7 in direct solar radiation.
Fig. 9 is a schematic structural view of the light guide tube lighting assembly in fig. 7 when the sun is obliquely irradiated.
Fig. 10 is a control block diagram of a tunnel energy-saving control system based on light pipe and fiber auxiliary illumination according to embodiment 1 of the present invention.
The figures are marked as follows:
the lighting device 1, the LED lamp 11, the auxiliary lighting device 2, the adaptive lighting unit 21, the light pipe lighting component 211, the light collecting pipe 211a, the lighting cover 211b, the waterproof gasket 211c, the first rotator 211d, the optical fiber lighting component 212, the optical fiber head 212a, the supporting light pipe 212b, the optical fiber light pipe 212c, the mounting plate 212d, the light guiding unit 22, the main light pipe 221, the main light pipe 222, the branch light pipe 223, the branch light pipe 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 branch convex lens 73, the branch concave lens 74, the video capture device 8, and the alarm device 9.
Detailed Description
The following is a further detailed description of the embodiments:
example 1
As shown in fig. 1 to 4, the tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination of 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. For ease of understanding, the present embodiment divides a 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 so as to provide basic lighting for traveling in the tunnel. The auxiliary lighting device 2 is installed on the inner top surface of the tunnel corresponding to the tunnel entrance section and the tunnel exit section, and is used for providing auxiliary lighting for the traveling crane entering and exiting the tunnel, and providing lighting for the traveling crane in the tunnel by being matched with the lighting device 1, so that the energy consumption of the lighting device 1 is reduced. The brightness detection devices 3 and the auxiliary lighting devices 2 are arranged on the inner top surface of the tunnel or the left and right side walls of the tunnel in a one-to-one correspondence manner, and are used for detecting real-time illumination intensity of corresponding areas in the tunnel, wherein the real-time illumination intensity is a superposition value of the brightness of the lighting devices 1 and the brightness of the auxiliary lighting devices 2. The infrared detection device 4 is arranged outside the tunnel and at a position which is a distance away from the entrance of the tunnel, and is used for detecting vehicles entering the tunnel, and generating a vehicle entrance signal when detecting that the vehicles enter the tunnel. The processing module 5 receives the vehicle entrance signal, generates an instruction for turning on the LED lamp 11 according to the vehicle entrance signal and generates an instruction for 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 generates a corresponding brightness adjusting instruction according to the real-time illumination intensity and the designed 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 LED lamp 11 on command, so that the real-time illumination intensity in the tunnel reaches the designed 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 LED lamp 11 off command, so that the real-time illumination intensity in the tunnel reaches the designed 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 adjustment command to keep the real-time illumination intensity at a stable intensity, so as to avoid the influence of the illumination intensity change on the implementation of the driver. In this embodiment, the design illumination intensity of the tunnel during driving is set to 70%, and the design illumination intensity of the tunnel during idle is set to 30%.
The design illumination intensity of the tunnel is gradually reduced from the tunnel entrance section to the tunnel middle section during driving, and is gradually increased from the tunnel middle section to the tunnel exit end after the tunnel middle section is stabilized at an intensity value. In this embodiment, taking the design illumination intensity of the middle section of the tunnel as 70% of the normal brightness as an example, the design illumination intensity of the entrance section of the tunnel may decrease from the entrance of the tunnel (the design illumination intensity at the entrance of the tunnel is greater than 70%) to the inside of the tunnel according to a gradient of 10% or 5% until the design illumination intensity decreases to 70%, and the design illumination intensity of the exit section of the tunnel may decrease from the exit of the tunnel according to a gradient of 10% or 5% (the design illumination intensity at the entrance of the tunnel is greater than 70%), so that the illumination intensity in the tunnel tends to decrease or increase gradually, and thus, when the vehicle enters or exits the tunnel, the driver has a light-to-dark or dark-to-light adaptation process for avoiding the occurrence of "black hole effect" or "white hole effect" when entering or exiting the tunnel, thereby affecting driving, and even increasing the safety of the driving of the tunnel. It will be appreciated that in other embodiments, the design illumination intensities of the tunnel entrance section, the tunnel intermediate section, and the tunnel exit section may be set to other ratios depending on the length of the tunnel and the driving requirements.
As shown in fig. 5, the processing module 5 includes a timing unit 51, a brightness comparing unit 52, and an instruction generating unit 53. Specifically, the timing unit 51 receives the vehicle entrance signal and starts to time at a preset time interval according to the vehicle entrance signal, if a new vehicle entrance signal is received again before the time is finished, the timing unit 51 counts again at the preset time interval, if a new vehicle entrance signal is not received after the time is finished, it indicates that all vehicles in the tunnel have exited the tunnel, and at this time, the timing unit 51 generates a vehicle exit signal.
In this embodiment, the preset time interval is determined by the length of the tunnel, the speed limit of the traveling crane in the tunnel, and the installation position of the infrared detection device 4, and the preset time interval may be expressed 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 entrance of the tunnel; vt is the speed limit of the driving in the tunnel; e is a compensation value of a preset time interval for compensating for differences between different vehicle driving speeds, and in this embodiment, the value of the compensation value e of the preset time interval is 10s.
The comparison unit can compare the real-time illumination intensity of the tunnel with the designed illumination intensity of the tunnel in the corresponding period, and generate a brightness adjustment signal when the real-time illumination intensity of the tunnel is not equal to the designed illumination intensity in the current period. When the tunnel has a vehicle driving in (i.e. driving) or the vehicle all driving out of the tunnel (i.e. idle), the real-time illumination intensity of the tunnel is compared with the designed illumination intensity of the tunnel when the vehicle is driving and the tunnel is idle respectively, and when the real-time illumination intensity of the tunnel is not equal to the designed illumination intensity of the tunnel when the vehicle is driving or the tunnel is idle, the brightness adjusting signal is generated. In this embodiment, the real-time illumination intensity is not equal to the design illumination intensity of the tunnel when driving or idling, that is, the real-time illumination intensity is greater than or less than the design illumination intensity of the tunnel when driving or idling, and in order to ensure that the illumination intensity in the tunnel is kept at a stable intensity, a brightness adjustment signal needs to be generated when the real-time illumination intensity changes to control the lighting device 1 and/or the auxiliary lighting device 2 to change the brightness so that the real-time illumination intensity is equal to the design illumination intensity of the tunnel when driving or idling.
The instruction generating unit 53 receives the vehicle entrance signal and the vehicle exit signal, and generates corresponding instructions for turning on the LED lamp 11 and turning off the LED lamp 11 according to the vehicle entrance signal and the vehicle exit signal, respectively. The instruction generation unit 53 may also generate the brightness adjustment instruction according to the brightness adjustment signal so that the control module 6 may perform a corresponding control operation of the lighting device 1 and/or the auxiliary lighting device 2.
As shown in fig. 6, the infrared detecting 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 pairs, and when the two pairs of infrared sensor groups 42 have detection signals, the corresponding vehicle entrance signals are only generated. In a specific implementation, when the vehicle driving into the tunnel is determined, when the vehicle driving into the tunnel is blocked by the infrared light generated by one group of infrared sensor groups 42, the group of infrared sensor groups 42 generates an electrical signal, the vehicle continues to move forward, and when the other group of infrared sensor groups 42 is blocked, the vehicle generates an electrical signal, if the time interval between the two electrical signals is less than t=2/Vt, it is indicated that the vehicle driving into the tunnel is present, and at this time, a vehicle driving-in signal is generated.
In other embodiments, the infrared detection device 4 may be further disposed at the entrance of the tunnel and the exit of the tunnel, and the infrared detection device 4 at the exit of the tunnel may be used to determine whether the vehicle exits the tunnel within a preset time interval.
The lighting device 1 comprises N groups of LED lamps 11 which are uniformly arranged along the length direction of the tunnel, and 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 the LED lamp 11 on instruction, the LED lamp 11 off instruction and the brightness adjusting instruction. In this embodiment, the 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%, the designed illumination intensity of the tunnel in driving is 70% or the designed illumination intensity of the tunnel in idle is 30% provided by the auxiliary illumination device 2, when the brightness of the led lamp 11 is 70%, the designed illumination intensity of the tunnel in driving is 70% provided by the led lamp 11, so as to realize the energy saving control of the illumination in the tunnel.
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 diffusion units 23, in which the adaptive lighting unit 21 is installed on the surface of the corresponding mountain outside the tunnel and is 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 a mountain at a position corresponding to the tunnel, one end of the light guide unit extends to the surface of the mountain outside the tunnel and 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 units 23, and the light splitting ports extend to the inner top surface of the tunnel and are communicated with the diffusion units 23 and are used for conveying sunlight collected by the adaptive lighting unit 21 into the diffusion units 23; the plurality of diffusion units 23 are uniformly arranged on the inner top surface of the tunnel and electrically connected with the control module 6, and the diffusion units 23 are used for diffusing the sunlight transmitted by the light guide unit 22 into the tunnel so as to increase the illumination intensity in the tunnel and adjust the luminous flux under the control of the control module 6. In this embodiment, the auxiliary lighting device 2 is disposed at the corresponding position of the tunnel entrance section and the tunnel exit section, and it can be appreciated that in other embodiments, the auxiliary lighting device 2 may be further extended to the middle section of the tunnel or the auxiliary lighting device 2 may be disposed in the whole tunnel according to the distance between the inner top surface of the tunnel and the mountain surface and the energy saving requirement, so as to further reduce the power consumption of the lighting device 1.
The self-adaptive lighting unit 21 comprises a light pipe lighting component 211 arranged outside the tunnel and at least one optical fiber lighting component 212 arranged around the light pipe lighting component 211, wherein the light pipe lighting component 211 and the optical fiber lighting component 212 are used for collecting sunlight. In this embodiment, the optical fiber lighting assemblies 212 are provided with four groups, and the four groups of optical fiber lighting assemblies 212 are disposed around the light pipe lighting assembly 211 in a surrounding manner, so as to increase lighting efficiency.
The light pipe lighting component 211 comprises a light collecting pipe 211a, a lighting cover 211b, a waterproof gasket 211c and a first rotator 211d, wherein a lighting opening is formed in the top of the light collecting pipe 211a and used for collecting sunlight and guiding the sunlight into the light guiding unit 22, and the light collecting pipe 211a is rotationally connected with the light guiding unit 22, so that the lighting opening can rotate according to a preset rule, and the luminous flux entering the light guiding unit 22 is improved. The light collecting cover 211b is covered outside the light collecting pipe 211a, and is used for providing a good environment for the light collecting pipe 211a to collect sunlight so that the sunlight can smoothly enter the light collecting pipe 211a, and meanwhile, the light collecting assembly 211 of the whole light pipe can be prevented from being unnecessarily damaged due to the fact that foreign matters or unknown objects enter the light collecting pipe 211 a. 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 pipe 211a to affect the sunlight collecting efficiency of the light collecting pipe 211 a. The first rotator 211d is disposed on the light collecting tube 211a and is 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 solar rays under the control of the control module 6 (as shown in fig. 8-9), so that the light collecting tube 211a can absorb sunlight to the maximum extent and improve the luminous flux entering the light collecting tube 211 a.
The optical fiber lighting assembly 212 comprises an optical fiber set, a supporting light pipe 212b, an optical fiber light pipe 212c and a second rotator (not shown), wherein the optical fiber set comprises 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 support light guide 212b, so as to adjust the angle of the optical fiber head 212a, so that the optical fiber head 212a can rotate along with the direct sunlight angle, and the luminous flux is improved. The fiber optic heads 212a are each in communication with the support light pipe 212b to direct collected sunlight into the support light pipe 212b. The end of the supporting light pipe 212b 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 to be communicated with the light guiding unit 22, so that sunlight collected by the optical fiber head 212a can be guided into the light guiding unit 22 along the supporting light pipe 212b and the optical fiber light pipe. The second rotator is disposed at a corresponding position of the mounting plate 212d and is electrically connected to the control module 6, and the second rotator can drive the mounting plate 212d to rotate along with the direct angle of the solar rays under the control of the control module 6, so that the optical fiber head 212a can absorb sunlight to the greatest extent, and further the luminous flux entering the optical fiber head 212a is improved.
In an embodiment, the rotation process of the first rotator 211d and the second rotator is a continuous change process, that is, the lighting port is always located opposite to the sun ray so as to maximize the obtained luminous flux by the whole first rotator 211d under the irradiation of the sunlight, and the optical fiber head 212a is always located opposite to the sun ray so as to maximize the obtained luminous flux by the second rotator. 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 rotation designated angle every minute according to the movement rule of the sun, so that the light collecting opening and the optical fiber head 212a can be always positioned opposite to the sun rays.
The light guiding unit 22 includes a main light guiding component and a plurality of light splitting and guiding components, where the light guiding component 211 and the optical fiber lighting component 212 are both in communication with the main light guiding component, and specifically, the light collecting tube 211a of the light guiding component 211 and the optical fiber light guiding tube 212c of the optical fiber lighting component 212 are connected to the main light guiding component so as to guide the sunlight collected by the light collecting tube 211a and the optical fiber head 212a into the main light guiding component. The other end of the main light guiding component is provided with a plurality of connecting ends, the light splitting and guiding components are connected to the connecting ends in a one-to-one correspondence manner, and the other ends of the light splitting and guiding components are communicated with the diffusion units 23 in a one-to-one correspondence manner, so that sunlight transmitted in the main light guiding component can enter each light splitting and guiding component respectively, and is transmitted to the diffusion units 23 through the light splitting and guiding components to be diffused into the tunnel.
The main light guiding assembly comprises a plurality of main light guiding pipes 221 and a plurality of main corrugated pipes 222 which are arranged at intervals, and reflective materials are coated on the inner wall of the main corrugated pipes 222, so that when sunlight irradiates on the inner wall of the main corrugated pipes 222, the sunlight can be reflected by the inner wall of the main corrugated pipes 222 to continue to be transmitted forwards. The light-dividing and guiding assembly comprises a plurality of light-dividing pipes 223 and a plurality of corrugated-dividing pipes 224 which are arranged at intervals, and the inner wall of the corrugated-dividing pipe 224 is coated with a reflective material, so that when the sunlight irradiates the inner wall of the corrugated-dividing pipe 224, the sunlight can be reflected by the inner wall of the corrugated-dividing pipe 224 to continue to be transmitted forwards. In addition, in this embodiment, the main corrugated pipe 222 and the sub-corrugated pipe 224 are respectively disposed on the main light guiding component and the sub-light guiding component, so that when the main light guiding component and the sub-light guiding component are installed, the main light guiding component and the sub-light guiding component can adapt to different installation environments and installation positions by stretching or shrinking the lengths of the main corrugated pipe 222 or the sub-corrugated pipe 224, so that the light guiding unit 22 has more versatility.
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 diverging sunlight, a plurality of main convex lenses 71 are disposed at inner intervals of the main light guiding assembly (the main convex lenses 71 are coaxially disposed on the inner wall of the corresponding main light pipe 221), and the main convex lenses 71 can concentrate sunlight entering the main light guiding assembly so as to increase the utilization rate of sunlight; the main concave lens 72 is arranged in the main light guide assembly at the position corresponding to the connection position of the light guide assembly, and the main concave lens 72 can diverge sunlight transmitted by the main light guide assembly and then inject the diverging sunlight into the light guide assembly, so that each light guide assembly can obtain light flux with almost equal quantity. Also, a plurality of convex sub-lenses 73 are arranged in the light-splitting and guiding assembly at intervals (the concave sub-lenses 74 are coaxially arranged on the inner wall of the corresponding light-splitting and guiding tube 223), and the concave sub-lenses 74 can concentrate sunlight entering the light-splitting and guiding assembly so as to increase the utilization rate of the sunlight; a concave-dividing lens 74 is disposed in the light-dividing and guiding assembly at a position corresponding to the connection position with the diffusion unit 23, and the concave-dividing lens 74 can diverge the sunlight transmitted by the light-dividing and guiding assembly and then inject the sunlight into the diffusion unit 23, so as to increase the divergence effect of the sunlight.
The diffusing unit 23 includes a diffuser 231 and a light modulator (not shown), wherein the diffuser 231 is in communication with the light-splitting and guiding assembly, and is configured to diffuse 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 a corresponding position, without generating local condensation phenomenon. The light modulator is arranged at the connection position of the diffuser 231 and the light-splitting and guiding component and 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 component, and then adjust the real-time illumination intensity of the tunnel to achieve the designed illumination intensity of the tunnel.
When the embodiment works, sunlight enters the light guide unit 22 through the light guide lighting component 211 and the optical fiber lighting component 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 the process, the brightness detection device 3 continuously detects the real-time illumination intensity in the tunnel. When the 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 generating unit 53 generates an instruction for starting the LED lamp 11 according to the vehicle running-in signal and triggers the timing unit 51 to start timing, at this time, the control module 6 receives the instruction for starting 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 designed illumination intensity of the tunnel during running, and the lighting is provided for the running in the tunnel. When the timing unit 51 finishes timing, the instruction generating unit 53 generates an instruction to turn off the LED lamp 11, and 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 detecting device 3, so that the real-time illumination intensity in the tunnel reaches the designed illumination intensity of the tunnel when idle, so as to reduce the energy consumption in the tunnel.
When the lighting device 1 and the auxiliary lighting device 2 of the embodiment are matched for lighting, the auxiliary lighting device 2 is preferentially adopted for lighting, and when the illumination intensity provided by the auxiliary lighting device 2 is insufficient to reach the design illumination intensity, the lighting device 1 is controlled to raise the brightness for lighting together, so that the electric energy consumption of the lighting device 1 in the tunnel can be effectively reduced.
Example 2
As shown in fig. 10, a control block diagram of the tunnel energy saving system based on the light guide and the optical fiber auxiliary illumination according to the present embodiment is shown. The present embodiment includes a lighting device 1, an auxiliary lighting device 2, a luminance detecting device 3, an infrared detecting device 4, a processing module 5, and a control module 6, which are identical or similar in structure and function to those of embodiment 1. The difference in this embodiment is that:
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 capturing apparatus 8 may be a video capturing apparatus 8 such as a video camera or a still camera. The processing module 5 is further configured to determine whether an abnormal situation exists in the tunnel according to the video image, and generate an alarm instruction when the abnormal situation 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 time, the control module 6 may control the lighting device 1 and/or the auxiliary lighting device 2 in the tunnel according to the alarm instruction to maintain or increase the brightness to the designed lighting intensity of the tunnel during driving, so as to further prompt the related personnel that an abnormal situation occurs in the tunnel, and the related personnel need to check in time.
According to the embodiment, the alarm module is arranged, when abnormal conditions occur in the tunnel, the alarm module can give out an alarm through sound, the LED lamp 11 gives out an alarm through light or the combination of the sound and the LED lamp and prompts the attention of related personnel, so that the related personnel can take countermeasures in time, and the safety of the tunnel driving can be improved.
Claims (8)
1. Tunnel energy-saving control system based on light pipe and optic fibre auxiliary lighting, its characterized in that includes:
the illumination devices are uniformly distributed along the length direction of the tunnel and are used for providing illumination for travelling crane in the tunnel;
the auxiliary lighting devices are arranged at two entrance sections of the tunnel and are used for providing illumination for travelling crane in the tunnel together with the lighting devices;
the brightness detection device is arranged corresponding to the auxiliary lighting device and is used for detecting the real-time illumination intensity of a corresponding area in the tunnel in real time, wherein the real-time illumination intensity is a 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 of a vehicle entering the tunnel;
the processing module is used for generating a lamp-on instruction according to the vehicle entrance signal, generating a lamp-off instruction when a new vehicle entrance signal is not detected within a preset time interval, and generating a corresponding brightness adjustment instruction according to the real-time illumination intensity and the designed 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 lighting instruction so that the real-time illumination intensity in the tunnel reaches the designed 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 lighting instruction so that the real-time illumination intensity in the tunnel reaches the designed illumination intensity of the tunnel during idle; the device 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;
the auxiliary lighting device comprises an 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 adaptive lighting unit and the diffusion units, wherein the light guide unit is arranged in a mountain at a corresponding position of the tunnel, one end of the light guide unit extends out of the tunnel and is communicated with the 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 pipe lighting component arranged outside the tunnel and at least one optical fiber lighting component arranged around the light pipe lighting component;
the light guide unit comprises a main light guide component and light splitting and guiding components which are arranged in one-to-one correspondence with the diffusion units and are connected with the main light guide component and the diffusion units, and the light guide lighting component and the optical fiber lighting component are communicated with the main light guide component; a plurality of main convex lenses are arranged in the main light guide assembly at intervals, a main concave lens is arranged in the main light guide assembly at the position corresponding to the connection position of the light guide assembly, and a plurality of convex sub-lenses are arranged in the light-splitting and guiding assembly at intervals, and a concave sub-lens is arranged in the light-splitting and guiding assembly at the position corresponding to the connection position of the diffusion unit.
2. The tunnel energy saving control system based on light pipe and fiber optic auxiliary lighting of claim 1, wherein the processing module comprises:
the timing unit is used for starting timing according to the vehicle entrance signal at a preset time interval, restarting timing at the preset time interval if the vehicle entrance signal is received again before the timing is finished, and generating a vehicle exit signal if the new vehicle entrance signal is not received after the timing is finished;
the comparison unit is used for comparing the real-time illumination intensity of the tunnel with the designed illumination intensity of the tunnel in the corresponding period, and generating a brightness adjustment signal when the real-time illumination intensity of the tunnel is not equal to the designed illumination intensity in the current period; and
the instruction generating unit is used for respectively generating the corresponding lamp-on instruction and lamp-off instruction according to the vehicle driving-in signal and the vehicle driving-out signal, and generating the brightness adjusting instruction according to the brightness adjusting signal.
3. The tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination according to claim 1, wherein: the design illumination intensity of the tunnel gradually decreases from the tunnel entrance section to the tunnel middle section during driving and gradually increases from the tunnel middle section to the tunnel exit end after stabilizing at an intensity value.
4. The tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination according to claim 1, wherein: the light guide lighting component comprises a light collecting pipe, a lighting cover, a first rotator and a waterproof gasket, wherein the light collecting pipe is rotatably connected with the light guide unit; 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.
5. The tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination according to claim 1, wherein: the optical fiber lighting assembly comprises an optical fiber light guide pipe extending into the mountain 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 for 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 angle of the solar rays; the optical fiber group comprises a mounting plate which is rotationally connected with the supporting light guide pipe and a plurality of optical fiber heads which are uniformly arranged on the mounting plate and are communicated with the supporting light guide pipe.
6. The tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination according to claim 1, wherein: 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, wherein the inner walls of the main corrugated pipes are coated with reflective materials, and the main convex lenses are coaxially arranged on the inner walls of the corresponding main light guide pipes; the light splitting and guiding assembly comprises a plurality of light splitting and guiding pipes and a plurality of corrugated splitting pipes which are arranged at intervals, the inner walls of the corrugated splitting pipes are coated with reflective materials, and the concave lenses are coaxially arranged on the inner walls of the corresponding light splitting and guiding pipes.
7. The tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination according to claim 1, wherein: the diffusion unit comprises a diffuser communicated with the light-splitting and guiding assembly and a light modulator fixedly arranged at the connection 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.
8. The tunnel energy-saving control system based on light pipe and optical fiber auxiliary illumination according to claim 1, wherein: the system also comprises a plurality of video acquisition devices and an alarm module which are arranged in the tunnel according to the preset distance;
the video acquisition devices are used for acquiring video images of corresponding areas in the tunnels, and each acquired video image of each video acquisition device is configured 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 maintain or improve the brightness to the designed lighting intensity of the tunnel during 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.
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| CN116489843A (en) * | 2023-05-06 | 2023-07-25 | 重庆交通大学 | A lighting method for tunnel entrance section based on combined control of light pipe and LED lamp |
| CN117308015A (en) * | 2023-10-17 | 2023-12-29 | 中铁七局集团武汉工程有限公司 | Tunnel sunlight and traditional lamps collaborative lighting system and method |
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| CN111256085A (en) * | 2020-03-06 | 2020-06-09 | 北京工业大学 | A shading and lighting device at the entrance of a tunnel |
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