CN209375992U - A kind of control system of tunnel intelligent illumination - Google Patents

A kind of control system of tunnel intelligent illumination Download PDF

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Publication number
CN209375992U
CN209375992U CN201821711319.5U CN201821711319U CN209375992U CN 209375992 U CN209375992 U CN 209375992U CN 201821711319 U CN201821711319 U CN 201821711319U CN 209375992 U CN209375992 U CN 209375992U
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tunnel
control system
illumination
optical sensor
light
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Inventor
吴峰
曾宪荣
吴晖辉
肖润航
黄桂彬
杜字彬
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Shunde Vocational and Technical College
Shunde Polytechnic
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Shunde Vocational and Technical College
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Abstract

The utility model relates to a kind of control systems of tunnel intelligent illumination, comprising: optical sensor is used for the internal and external environment brightness of real-time detection tunnel;Infrared sensor, for being identified in real time by vehicle and detection speed;Light fixture is used for tunnel illumination;Light adjusting controller is electrically connected with light fixture, realizes the brightness regulation of light fixture;Intelligence control system, including master controller, microprocessor and control unit, the optical sensor and the infrared sensor are connect with master controller realization signal, described control unit realizes that signal is connect with the light adjusting controller, the utility model passes through the information such as vehicle flowrate, average speed in the brightness of illumination and tunnel inside and outside real-time detection tunnel, the working condition of the light fixture in tunnel is adjusted, not only energy conservation but also safety.

Description

A kind of control system of tunnel intelligent illumination
Technical field
The utility model relates to the control systems that lighting area more particularly to a kind of tunnel intelligent illuminate.
Background technique
With the continuous development of China's highway, total kilometrage has leapt to the first in the world, the quantity of freeway tunnel It is increasing year by year, but tunnel illumination makes a big difference with road lighting, especially driver is when entering and leaving tunnel, people Adaptation of eye new environment needs a process, if luminous intensity difference is larger inside and outside tunnel entrance, driver can be allowed to occur Of short duration ablepsia, is easy to cause traffic accident, so the lighting system in research tunnel has wide significance.
Currently, the distribution of each section lamps and lanterns and quantity are in accordance with maximum brightness, vehicle flowrate and vehicle outside year tunnel in tunnel Come what is determined, the factor for influencing design parameter is all given design maximum value and is considered for maximum travel speed, causes in the later period The brightness of each section and length are in maximum state of value always when tunnel operation, these factors have determined lamps and lanterns in tunnel system The state that configuration scale and later period open when runing.In tunnel actual operation, the data selection to vehicle flowrate, speed is often Not reasonable, it is most of in order to guarantee the traffic safety in tunnel because having certain difficulty stage by stage to implement lighting system Freeway tunnel design object often using the larger vehicle flowrate of the coming years as design reference value, does not account for tunnel vehicle Flow is smaller and tunnel outside brightness the case where, this design method is strictly unscientific.Tunnel illuminating system design rule In model to be less than or greater than 700/hour passage wagon flow under defined brightness reference value gap be it is very big, if made always Use above situation as the design parameter of lighting system.The brightness embodied in actual operations can be significantly larger than present or recent institute The brightness needed.In addition, be usually 2 ~ 3 years by the service life of LED light, then about crossed 2 ~ 3 years will by whole lamps and lanterns into Row replacement, such unreasonable design not only increase the running cost of the expense and later period tunnel of initial investment, do not meet also National " planning of energy-saving and emission-reduction " 12th Five-Year Plan " ".
Part tunnel illumination realizes grading control according to the use PLC system of synoptic model and daytime mode at this stage, has Light sensation technology is had also combined, that is, reaching setting brightness value automatic bright light or will turn off the light, but this grading control mode is excessively Simply, it cannot be made adjustment in time according to the actual conditions of tunnel environment.On the other hand, PLC signal transmission has many determinations, Such as: distribution transformer has deadening effect to circuit carrier signal, so that power carrier signal can only be in a distribution voltage device area It is transmitted within the scope of domain;There is the very big loss of signal between three-phase power line;There are impulse disturbances inherently in power line;Power line pair Carrier signal causes high abatement.In addition, the recurrence of cloth line loop is cumbersome, waste is serious, inconvenient to use.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of control system of tunnel intelligent illumination, particular technique Scheme is as follows:
The utility model embodiment provides a kind of control system of tunnel intelligent illumination, comprising:
Optical sensor is used for the internal and external environment brightness of real-time detection tunnel;
Infrared sensor, for being identified in real time by vehicle and detection speed;
Light fixture is used for tunnel illumination;
Light adjusting controller is electrically connected with light fixture, realizes the brightness regulation of light fixture;
Intelligence control system, including master controller, microprocessor and control unit, optical sensor and infrared sensor with Master controller realizes signal connection, and control unit realizes that signal is connect with light adjusting controller.
Further, light fixture include base lighting lamps and lanterns and can modulation lamps and lanterns, can modulation lamps and lanterns be LED lamp, adjust Optical controller is LED lamp controller, and base lighting and LED lamp are set to tunnel overall process, LED lamp controller and LED Lamps and lanterns electrical connection, base lighting lamps and lanterns are in and are always on state, it is ensured that marginal illumination requirement in tunnel, LED lamp is by above-mentioned number According to being adjusted, Energy Saving Control is realized, LED lamp working condition includes switch, is brightened or dimmed.
Further, optical sensor includes the first optical sensor and the second optical sensor, the first optical sensor It is set to outside tunnel, for detecting brightness outside tunnel, the second optical sensor is set in tunnel, visible in tunnel for detecting Brightness integrates the light luminance inside and outside tunnel, keeps the adjusting of the control system of tunnel illumination more scientific.
Further, tunnel Approach phase, interlude and outlet section are provided with infrared sensor, are all connected to the master control Device processed, for detecting vehicle flowrate, Real-time Feedback is to remote control terminal.
Further, further include alarm, be set to tunnel entrance, and be connected to master controller, when vehicle is passing through When tunnel occurs abnormal, LED lamp alarm is sounded an alarm, and is reminded the careful driving license of vehicle outside tunnel and is reduced speed.
Further, further include remote control terminal, got in touch with intelligence control system by mobile communication network, for remote Journey monitoring and the entire tunnel illuminating system of control, keep the control of lighting system more intelligent.
Further, control unit realizes that signal is connect by wireless network with light adjusting controller, and being used for can modulation lamp Tool control instruction is transmitted to each segmentation, and the transmission for controlling signal is more convenient.
Further, microprocessor is connected with input unit, is used for input control signal, it is preferred that input unit is mouse Mark.
Further, microprocessor is also connected with display unit, for showing each segmentation luminance information, it is preferred that display Unit is liquid crystal display.
Further, optical sensor is photoinduction sensor, and infrared sensor includes infrared tube and ultrasonic velocimeter, Photoinduction sensor is for detecting vehicle flowrate, and ultrasonic velocimeter is for detecting average speed.
The beneficial effects of the utility model are:
1, when vehicle will drive into or be driven out to tunnel, control system provided by the utility model is by calculating, automatically The illumination intensity in each section of tunnel is adjusted, reduces the generation in Driver Vision " black hole ", " white hole " phenomenon to greatest extent, improves and drives Member can clearly differentiate condition of road surface and barrier, avoid leading to traffic accident in the visual adaptability of tunnel entrance, it is ensured that Traffic safety in tunnel;
2, intelligence adjusts lamplight brightness, reaches energy-conserving action;
3, infrared inductor and alarm are installed, can learn in time and remind will enter tunnel vehicle drive with caution and Reduce speed.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the segmentation brightness change schematic diagram that the tunnel intelligent of the utility model illuminates
Fig. 2 is the general illustration of the tunnel intelligent lighting control system of the utility model
Fig. 3 is that the tunnel intelligent of the utility model illuminates the calculating schematic diagram of segmentation demand brightness
Fig. 4 is the control schematic diagram of the tunnel intelligent illumination segmentation brightness of the utility model
Fig. 5 is another control schematic diagram of the tunnel intelligent illumination segmentation brightness of the utility model
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the illumination system layout of the utility model correspond to vcehicular tunnel four parts I: entrance, mistake Cross section, interlude and outlet section.Entrance in tunnel, driver are required to see clearly the wagon flow situation in tunnel, prevent out Existing " black-hole effect ", especially the meridian hour in 7 ~ August parts, the brightness outside tunnel is big, when vehicle driver drive vehicle into When entering tunnel, occur powerful contrast inside and outside tunnel between light luminance, vehicle driver is made of short duration ablepsia occur, it can to have Can make to lose control of one's vehicle, occur traffic accident, once back vehicle hide it is too late, it is possible to the serious traffic thing for causing more vehicles to knock into the back Therefore.Therefore when vehicle passes through entrance, vehicle driver gradually adapts to the light luminance in tunnel, from safety and energy-efficient angle Consider, the brightness of entrance from tunnel UV light brightness close to gradually decreasing.The length of usual entrance needs and design Maximum speed matching, will not be dangerous when minimum length will guarantee maximum speed safety shut-down, and it is quasi- to handle dangerous situation for driver Standby enough distances, entrance is the laundering period of visible change, has to leave enough buffer distances and comfortable to driver Light sensation.
Changeover portion in tunnel, because driver has gradually adapted to the dark in tunnel, visual stimulus is gradually recovered, So the lighting of changeover portion should be stepped down to power save mode in this section apart from inner.
Into the interlude in tunnel, driver has been gradually distance from the influence area of natural light, the visual state of driver by Gradually steady, illumination intensity at this time is minimum, and illumination intensity is steady, creates a stable intensity of illumination ring for driver Border, brightness case at this time can be determined according to vehicle flowrate and average speed, at this time in infrared sensor real-time detection tunnel Vehicle flowrate and average speed, feed back to master controller, and master controller produces PID signal by microprocessor, microprocessor according to Object brightness and detection luminance information calculate luminance deviation, and luminance deviation information is sent to controller unit, output pwm signal, Start light adjusting controller, controls the working condition of light fixture.
In outlet section, due to tunnel outside light can shine in, the intensity of illumination of outlet section can step up to tunnel UV light brightness close degree in road is driven out to tunnel for driver and makees a buffering, the as far as possible stimulation of reduction Driver Vision.? Daytime, the setting of tunnel illumination should meet the visible change of driver, it is ensured that driver gradually adapts to the light in exit, avoids " white hole " phenomenon;Equally at night, " black hole " phenomenon should be avoided, improve visual adaptability of the driver at tunnel exit, energy Clearly differentiate condition of road surface and barrier.
Fig. 2 shows the general illustration of tunnel intelligent provided by the utility model illumination, including it is optical sensor, infrared Sensor, intelligence control system, dimming control system and light fixture.Wherein optical sensor includes the first detector and second Optical sensor, the first optical sensor are set to outside tunnel, for detecting tunnel UV light brightness, in order to accurately detect tunnel UV light can be provided with optical sensor at the entrance in tunnel, and taking the arithmetic mean number of the two is tunnel UV light Brightness, can also use other algorithms, and the utility model is not construed as limiting this.Time-division at noon, tunnel UV light reach one day In peak, at night, tunnel UV light be in one day in minimum.Second optical sensor is set in tunnel, by Level Four Discrete control has been carried out to tunnel illumination in the utility model, therefore every section is provided with the second optical sensor, it is each to be segmented Brightness is not only influenced by tunnel UV light brightness, also related with vehicle flowrate in tunnel, influences the entrance and outlet section in tunnel Principal element is tunnel UV light brightness, and in order to accurately detect the light luminance of each segmentation, multiple groups light can be arranged in segmentation It according to sensor, takes the arithmetic mean number of the two for the light luminance of this segmentation, other algorithms, the utility model pair can also be used This is not construed as limiting.
Infrared sensor is installed in tunnel, for identifying vehicle and detection speed in real time, vehicle can be only in tunnel Infrared sensor is arranged in road entrance, behind respectively segmentation can with the detection data of shared port section, according to average vehicle speed and When the length that tunnel is respectively segmented calculates vehicle from a segmentation into another segmentation, can also be respectively provided in each segmentation Infrared sensor, detection data are only used for the calculating of this segmentation.Wherein, infrared sensor can be known by GPS positioning, license plate Not, the technical monitorings such as radar vehicle flowrate and average speed, the utility model are not construed as limiting detection technique means, as long as can know Other vehicle and detection speed, and above- mentioned information are transferred to master controller.Preferably, infrared sensor group installation position As follows, tunnel 4 groups of infrared sensors of arrangement per unidirectional lane are calculated, wherein the 1st, 2 group is used to come car test survey, the 3rd, 4 group of realization Vehicle confirmation is crossed, when vehicle driver passes through the 2nd group of detector, lighting system adjusting is finished, the entrance that driver can be comfortable Tunnel, the detection data of 4 groups of detectors are complementary to one another calculating, and to improve detection accuracy, comprehensively considering installation cost, (route is long Degree) and predicted time both sides factor.
According to energy-saving design, the first preset time is related with time and highway busy extent, and in section on daytime, high speed is public Road vehicle is more, and the first preset time is long, and third instruction is issued if being spaced 30 minutes in tunnel and passing through without vehicle;At night Late section, vehicle on expressway is less, and the first preset time is short, issues the if being spaced 15 minutes in tunnel and passing through without vehicle Three instructions.
Master controller is the core of the electric control system of entire control system, including hardware design and software design Two parts, hardware master-plan include microprocessor, power supply, reseting module, memory extensive module, A/D conversion module, D/ A output module, network communication module etc..Software systems include operating system and application software two parts, infrared sensor and light It will test signal according to sensor and be transmitted to master controller, after calculation process, generating control strategy will be controlled by control unit Data are sent on light adjusting controller, and then execute the control to each lamps and lanterns.
The general illustration of tunnel intelligent illumination provided by the utility model additionally uses infrared sensor control skill Art, infrared sensor are connect with master controller, and master controller reconnects alarm, and alarm may be mounted at tunnel entrance, Control room can also be fed back to, infrared sensor can detecte the emergency case in tunnel, if infrared sensor detects tunnel When collecting a large amount of vehicles in road, judgement may get congestion or traffic accident, and alarm issues alarm signal, and alarm signal can be with Be directly transferred to the alarm being arranged outside tunnel, can also first be transmitted to control room, then by control room by radio wave or its His media transmission reminds vehicle outside tunnel to pay attention to alarm.Infrared sensor is connected to master controller, is respectively arranged in tunnel Approach phase, interlude and outlet section, when the infrared sensor of tunnel Approach phase, which has recognized vehicle, to enter tunnel, control Unit issues the first instruction, LED lamp controller according to the speed signal and the first and second optical sensor signal of current vehicle LED lamp is adjusted to the illumination condition close to tunnel external environment brightness;When the infrared sensor of tunnel interlude has recognized vehicle When entering interlude, control unit issues first and second according to the speed signal and the second optical sensor signal of current vehicle Instruction, LED lamp controller are pre-adjusted tunnel outlet section LED lamp to the illumination condition close to tunnel external environment brightness, make The regulation of tunnel illumination control system is more intelligent.When in the first preset time, (i.e. the infrared sensor of tunnel Approach phase is being Unite design time count range in) in without vehicle pass-through when, control unit issue third instruction, LED lamp controller adjust LED Lamps and lanterns are to low illumination condition.After vehicle enters tunnel, infrared sensor at tunnel exit in the second preset time (i.e. from System detects that vehicle by starting, passes through tunnel according to target vehicle with the minimum speed of highway layout in the first preset time Time design detection duration, as the second preset time) do not recognize vehicle and be driven out to tunnel, then to system control unit Signal is issued, and issues and warns in tunnel entrance, prompting will enter tunnel vehicle and drive with caution and reduce speed.Infrared biography Sensor can also detect the case where vehicle flowrate, adjust the brightness of light in tunnel in real time, no vehicle light adjustable power saving principle is by red Outside line sensor detect tunnel in vehicle by situation, the signal that will test when not having vehicle for a long time in tunnel is sent to Terminal reaches energy-efficient effect with this come the low illumination condition of lighting system for adjusting tunnel.
The utility model is LED intelligent dimming lighting system, and the technology of core is PWM light modulation, and light adjusting system is according to tunnel The demand of road brightness of illumination, the power of dynamic regulation LED lamp can effectively realize " illumination on demand ", realize tunnel illumination brightness Smooth transition, the circuit of abandoning tradition controls dimming mode, saves electric energy to the maximum extent, and promotes the safety of tunnel driving Property and comfort.From the aspect of energy saving, the lighting condition of LED tunnel lamp and high-pressure sodium lamp under total power dissipation, test The result shows that LED tunnel lamp is than high-pressure sodium lamp energy conservation 65%, it is more more energy efficient by 40% than the similar lamps and lanterns of grading control.It is mounted with LED Lamps and lanterns can not only be such that the illuminating line quality in tunnel is obviously improved, and the actual life of light source can also be made to extend 2~4 times, drop The rate of breakdown of low lamps and lanterns damage, further decreases maintenance cost, improves the reliability of tunnel illumination.Therefore, this is practical new Type is primarily based upon LED lamp and establishes and design.
The dimming control system of intelligent lighting provided by the utility model uses method of controlling switch, and switching device is for controlling Lamp power processed closes or opens, and the quality of performance directly affects the realization effect of system function.The characteristics of due to system It is frequent opening and closing lamps and lanterns, therefore the switching device of lamps and lanterns should select the device that response is rapid and on-off times are big.Mirror Have in electronic switch and frequently open, break, control capability is big, can remote-controlled operation the features such as, for this purpose, this control system is using electronics Switch --- LED lamp controller directly carries out the operation of gradient switch lamp to each lamp by control bus.
Software design includes the design of three-level system control: 1, the first order is remote control terminal, passes through mobile radio communication Network and the general control system at tunnel monitoring scene are got in touch with, and are played remote inquiry tunnel light status and are controlled tunnel light status Effect;2, the second level is tunnel light general control system, and the brightness of real-time detection tunnel portal, speed, vehicle flowrate data generate tunnel The intensity control command of each segmentation in road, is transferred to next stage by wireless network module;3, the third level is tunnel area lamp Optimizing Control System receives the target brightness value that upper level is sent by specific module, and output pwm signal controls LED lamplight function Rate.The system third level mainly completes two functions: first is that judging whether LED lamplight is damaged according to the brightness value of detection, for lamp Light abnormal failure first passes through wireless network report to the general control system of the second level, then by mobile network to be sent to the first order long-range Terminal;Second is that carrying out LED light brightness closed loop feedback control, realize that control area brightness is consistent with object brightness.
Fig. 3 ~ 5 shows the calculating schematic diagram of the tunnel intelligent illumination segmentation demand brightness of the utility model and control is shown It is intended to, after system initialization, optical sensor and infrared sensor start detection segmentation brightness and information of vehicles, real-time detection tunnel Segmentation brightness in road starts ZigBee and sends a signal to master controller if segmentation brightness changes, if segmentation is bright It spends unchanged, then continues real-time detection.Master controller will test lamplight brightness and be compared with object brightness, and it is inclined to calculate brightness Difference, master controller produce PID signal by microprocessor, and microprocessor calculates brightness according to object brightness and detection luminance information Luminance deviation information is sent to controller unit by deviation, and output pwm signal starts light adjusting controller, controls the work of light fixture Make state, working condition includes switch, is brightened or dimmed.
Mouse and liquid crystal display are connected on microprocessor, liquid crystal display is for showing each segmentation luminance information.It is excellent Choosing, optical sensor is photoinduction sensor, and infrared sensor includes infrared tube and ultrasonic velocimeter, photoinduction sensor For detecting vehicle flowrate, ultrasonic velocimeter is for detecting average speed.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of control system of tunnel intelligent illumination characterized by comprising
Optical sensor is used for the internal and external environment brightness of real-time detection tunnel;
Infrared sensor, for being identified in real time by vehicle and detection speed;
Light fixture is used for tunnel illumination;
Light adjusting controller is electrically connected with the light fixture, realizes the brightness regulation of the light fixture;
Intelligence control system, including master controller, microprocessor and control unit, the optical sensor and the infrared sensing Device realizes that signal is connect with the master controller, and described control unit realizes that signal is connect with the light adjusting controller.
2. a kind of control system of tunnel intelligent illumination according to claim 1, which is characterized in that the light fixture packet Include base lighting lamps and lanterns and can modulation lamps and lanterns, it is described can modulation lamps and lanterns be LED lamp, the light adjusting controller be LED lamp control Device processed, the base lighting lamps and lanterns and the LED lamp are set to tunnel overall process, the LED lamp controller and the LED Lamps and lanterns electrical connection.
3. a kind of control system of tunnel intelligent illumination according to claim 2, which is characterized in that the optical sensor Including the first optical sensor and the second optical sensor, first optical sensor is set to outside tunnel, second light It is set in tunnel according to sensor.
4. a kind of control system of tunnel intelligent illumination according to claim 3, which is characterized in that tunnel Approach phase, in Between section and outlet section be provided with infrared sensor, be all connected to the master controller.
5. a kind of control system of tunnel intelligent illumination according to claim 4, which is characterized in that the master controller is also It is connected with alarm, the alarm is set to tunnel entrance, and master controller is according to the infrared sensor detection information control Make the alarm.
6. according to the control system of the described in any item tunnel intelligent illuminations of claim 2-5, which is characterized in that further include remote Process control terminal, the remote control terminal and the intelligence control system are got in touch with by mobile communication network, for remotely supervising It surveys and controls entire tunnel illuminating system.
7. the control system of tunnel intelligent according to claim 6 illumination, which is characterized in that described control unit with it is described Light adjusting controller realizes signal connection by wireless network.
8. the control system of tunnel intelligent illumination according to claim 7, which is characterized in that the microprocessor is connected with Input unit is used for input control signal.
9. the control system of tunnel intelligent illumination according to claim 8, which is characterized in that the microprocessor is also connected with There is display unit, for showing each segmentation luminance information.
10. the control system of tunnel intelligent according to claim 9 illumination, which is characterized in that the optical sensor is Photoinduction sensor, the infrared sensor include infrared tube and ultrasonic velocimeter.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111140795A (en) * 2020-01-13 2020-05-12 中铁第四勘察设计院集团有限公司 Intelligent regulation street lamp and street lamp system
CN111445352A (en) * 2020-04-11 2020-07-24 齐鲁交通信息集团有限公司 Novel energy management system of highway wisdom tunnel
CN111586944A (en) * 2020-05-29 2020-08-25 北京交科公路勘察设计研究院有限公司 Highway tunnel intelligent illumination control system and method based on ETC portal system
CN116347714A (en) * 2023-05-23 2023-06-27 厦门普为光电科技有限公司 Tunnel illumination control system with illumination automatic adjustment function

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111140795A (en) * 2020-01-13 2020-05-12 中铁第四勘察设计院集团有限公司 Intelligent regulation street lamp and street lamp system
CN111140795B (en) * 2020-01-13 2023-12-05 中铁第四勘察设计院集团有限公司 Intelligent adjustment street lamp and street lamp system
CN111445352A (en) * 2020-04-11 2020-07-24 齐鲁交通信息集团有限公司 Novel energy management system of highway wisdom tunnel
CN111586944A (en) * 2020-05-29 2020-08-25 北京交科公路勘察设计研究院有限公司 Highway tunnel intelligent illumination control system and method based on ETC portal system
CN111586944B (en) * 2020-05-29 2022-09-06 北京交科公路勘察设计研究院有限公司 Highway tunnel intelligent illumination control system and method based on ETC portal system
CN116347714A (en) * 2023-05-23 2023-06-27 厦门普为光电科技有限公司 Tunnel illumination control system with illumination automatic adjustment function
CN116347714B (en) * 2023-05-23 2023-08-11 厦门普为光电科技有限公司 Tunnel illumination control system with illumination automatic adjustment function

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