An indoor lighting control system

The design of detachable track units and glare units solves the problems of complex assembly and limited glare effects in traditional lighting systems, achieving simplified assembly and improved light efficiency.

CN117320215BActive Publication Date: 2026-04-03SHAANXI DADI ZHONGGUANG SMART TECH CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-08
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional indoor lighting systems are complex to assemble, have a large number of fixed lamps, limited dynamic glare effects, and are difficult to disassemble.

Method used

It adopts a detachable track unit and a dazzling unit design, including a track motor and a light-emitting body motor. The controller controls the light-emitting body to slide and rotate on the track, and combined with the self-charging unit, it realizes flexible control of the lighting system.

Benefits of technology

It simplifies the assembly process of the lighting system, enhances the dynamic glare effect, and improves the light efficiency by converting point light sources into surface light sources, thereby enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117320215B_ABST
    Figure CN117320215B_ABST
Patent Text Reader

Abstract

This invention relates to an indoor lighting control system, which includes a roof lighting system, a wall lighting system, a floor lighting system, and a controller. The roof lighting system and the wall lighting system each include a track unit, a glare unit, and a drive unit. The track unit is detachably mounted on the roof or wall, and the glare unit is slidably mounted within the track unit. The controller can control the light source and the drive unit according to the status of the floor lighting system. The roof lighting system and the wall lighting system also include a self-charging unit, which includes a light source charging base and a motor battery charging base.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to a lighting control system, and more particularly to a control system for controlling indoor lighting. Background Technology

[0002] With the development of LED technology, lighting systems are now widely used in various indoor venues, such as product showrooms, theaters, bars, and cinemas. Figure 1 As shown, this is a traditional indoor lighting system, which generally includes a ground rendering section 1, a wall rendering section 2, and a ceiling rendering section 3. These sections are fixedly installed on the ground, walls, and ceiling, respectively, and are mostly composed of point-source LED emitters. During lighting rendering, a central lighting controller controls the illumination state and color of each section to achieve the desired effect. However, traditional lighting systems have several drawbacks in practical use, which are described below. First, the assembly process is extremely complex. Traditional lighting systems have a large number of lamps, requiring individual installation and fixing of each lamp, as well as light distribution, making the assembly process exceptionally complicated. Second, in traditional lighting systems, the lamps are fixed in specific locations, limiting dynamic glare effects and making disassembly difficult. Summary of the Invention

[0003] The technical solution adopted in this invention is as follows: an indoor lighting control system, comprising a roof lighting system, a wall lighting system, a floor lighting system, and a controller. The roof lighting system and the wall lighting system each include a track unit, a glare unit, and a drive unit. The track unit is detachably mounted on the roof or wall. The glare unit is slidably mounted within the track unit and includes a light emitter and a track support. One end of the track support is connected to the light emitter, and the other end is slidably mounted within the track unit, allowing the light emitter to be slidably mounted on the track unit via the track support. The drive unit includes a track motor and a light emitter motor. The track motor is connected to the track support via a transmission unit, and the light emitter motor is connected to the light emitter. The light emitter and the drive unit correspond to the controller, which can control the light emitter and the drive unit according to the status of the floor lighting system. The motor can drive the light-emitting body to slide back and forth on the track unit. The light-emitting body motor can drive the light-emitting body to rotate. The light-emitting body motor is installed in the track support. A motor battery is installed on one side of the light-emitting body motor. The motor battery is installed in the track support and connected to the light-emitting body motor. A main body battery is installed in the light-emitting body. The roof lighting system and the wall lighting system also include a self-charging unit. The self-charging unit includes a light-emitting body charging base and a motor battery charging base. The light-emitting body charging base corresponds to the main body battery. The motor battery charging base corresponds to the motor battery of the drive unit. A first light-emitting body connector is installed on the light-emitting body charging base. A second light-emitting body connector is installed on the main body battery. The first light-emitting body connector and the second light-emitting body connector correspond to each other. A first motor connector is installed on the motor battery charging base. A second motor connector is installed on the motor battery. The first motor connector and the second motor connector correspond to each other.

[0004] The beneficial effects of this invention are as follows: the user drives the ground lighting system, which generates a sampling signal. This sampling signal is transmitted to the controller, which converts the sampling signal into a control information signal. The controller then transmits the control information signal to both the roof lighting system and the wall lighting system. The control information signal simultaneously controls the operating status of both the roof lighting system and the wall lighting system. This invention can achieve the effect of controlling the roof lighting system and the wall lighting system by collecting signals from the ground lighting system.

[0005] The effectiveness of the method of the present invention in practical applications is illustrated by the following example: When the method of the present invention is applied in karaoke rooms, dance halls, nightclubs, and other similar venues, users can randomly generate varying sampling signals by controlling the vibration frequency of the floor lighting system by stepping on it. When the user's foot vibration frequency is low, the ceiling lighting system and wall lighting system produce a glare effect, while when the user's foot vibration frequency is high, the ceiling lighting system and wall lighting system produce another glare effect. In this way, users can randomly control the overall glare effect, thereby enhancing the indoor glare effect and improving the user experience.

[0006] Furthermore, the main design concept of this invention for the light-emitting body is that the structure of setting the LED light strip on the inner surface of the light-transmitting cover allows for direct heat dissipation through the cover. Simultaneously, the light emitted by the LED light source, after being reflected by the reflective heat dissipation surface, is projected through the light-transmitting cover, converting the point light source into a surface light source, thereby improving luminous efficiency. The color, power, and brightness of the LED light sources in different cover light strips can be set differently. Users can select different types of cover light strips to form the horizontal light strip body and cover the main body surface. Users can also customize the main body surface and the number of horizontal light strip bodies to customize the overall luminous power, light intensity, color, etc., of the light-emitting body to improve luminous efficiency. Additionally, the track motor can drive the light-emitting body to slide back and forth on the track unit, and the light-emitting body motor can drive the light-emitting body to rotate, further enhancing the glare effect. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of a traditional lighting rendering method.

[0008] Figure 2 This is a schematic diagram of the roof lighting system, wall lighting system, and ground lighting system of the present invention.

[0009] Figure 3 This is a schematic diagram illustrating the working principle of the method of the present invention.

[0010] Figure 4 This is a schematic diagram of the structure of the glare unit of the present invention.

[0011] Figure 5 This is a three-dimensional schematic diagram of the roof lighting system and wall lighting system of the present invention.

[0012] Figure 6 This is a schematic diagram of the first type of track unit according to the present invention.

[0013] Figure 7 This is a schematic diagram of the second type of track unit according to the present invention.

[0014] Figure 8This is a cross-sectional schematic diagram of the light-emitting element of the present invention.

[0015] Figure 9 This is a schematic diagram of a horizontal light strip body composed of several cover plate light strips according to the present invention.

[0016] Figure 10 This is a schematic diagram of the cover plate light strip of the present invention.

[0017] Figure 11 This is a schematic diagram of the structure of the light-emitting element of the present invention.

[0018] Figure 12 This is a schematic diagram of the working process of the light-emitting element of the present invention.

[0019] Figure 13 This is a schematic diagram of the self-charging unit of the present invention.

[0020] Figure 14 This is a top view of the ground lighting system of the present invention installed on the ground.

[0021] Figure 15 This is a schematic diagram of the strip-shaped buried light of the present invention.

[0022] Figure 16 This is a schematic diagram of the structure of the strip-shaped buried lamp of the present invention.

[0023] Figure 17 This is an exploded view of the strip-shaped buried lamp of the present invention. Detailed Implementation

[0024] like Figures 2 to 17 As shown, an indoor lighting control system includes a roof lighting system 100, a wall lighting system 200, a ground lighting system 300, and a controller 400. The roof lighting system 100 and the wall lighting system 200 each include a track unit 110, a glare unit 120, and a drive unit 130.

[0025] The track unit 110 is detachably mounted on the roof or wall, and the glare unit 120 is slidably mounted in the track unit 110.

[0026] The glare unit 120 includes a light source 500 and a track support 600. One end of the track support 600 is connected to the light source 500, and the other end of the track support 600 is slidably disposed in the track unit 110. The light source 500 is slidably disposed on the track unit 110 through the track support 600.

[0027] The drive unit 130 includes a track motor 131 and a light-emitting motor 132. The track motor 131 is connected to the track support 600 through a transmission unit 133, and the light-emitting motor 132 is connected to the light-emitting element 500.

[0028] The light-emitting element 500 and the driving unit 130 both correspond to the controller 400.

[0029] When in operation, the controller 400 can control the working state of the light emitter 500 and the drive unit 130 respectively.

[0030] The track motor 131 can drive the light source 500 to slide back and forth on the track unit 110, and the light source motor 132 can drive the light source 500 to rotate to enhance the glare effect.

[0031] In practical implementation, the light source 500 includes a rotating body 510 and several cover plate light strips 520, with several cover plate light strips 520 simultaneously covering the rotating body 510.

[0032] The outer surface of the rotating body 510 is provided with several body surfaces 530, and the several body surfaces 530 are connected together to form the outer surface of the rotating body 510.

[0033] In practice, the rotating body 510 can be set into a multi-faceted pyramid shape, such as a hexagonal pyramid, a triangular pyramid, a dodecagonal pyramid, etc.

[0034] Each of the body surfaces 530 includes a reflective heat dissipation surface 531 and a body assembly surface 532, wherein the reflective heat dissipation surface 531 is provided with a reflective heat dissipation coating 533, and the body assembly surface 532 is provided with a body assembler 534.

[0035] Several cover plate light strips 520 form several horizontal light strip bodies 540. Each horizontal light strip body 540 corresponds to one of the main body surfaces 530. Each horizontal light strip body 540 is detachably covered on one of the main body surfaces 530. Each horizontal light strip body 540 is composed of at least one cover plate light strip 520.

[0036] Each of the cover light strips 520 includes a light-transmitting cover 550, an LED light strip 560, and a light strip fixing adhesive 561. The light-transmitting cover 550 has an inner surface 551, which is divided into a light-transmitting mounting area 552 and an assembly area 553. The light strip fixing adhesive 561 is disposed on the light-transmitting mounting area 552. The LED light strip 560 is fixedly disposed on the light strip fixing adhesive 561. The LED light source on the LED light strip 560 corresponds to the reflective heat dissipation surface 531 of the self-rotating body 510.

[0037] The assembly area 553 is provided with a cover assembler 554, which corresponds to the body assembler 534 of the rotating body 510.

[0038] The LED light strip 560 is provided with a pin 562, and a socket 563 is provided on the rotating body 510 corresponding to the pin 562.

[0039] When the cover light strip 520 is placed on the body surface 530, the cover assembler 554 is assembled on the body assembler 534, so that the cover light strip 520 is placed on the body surface 530. The pin 562 of the LED light strip 560 is inserted into the socket 563, so that the LED light strip 560 and the rotating body 510 are electrically connected. The rotating body 510 is provided with a body battery 511, and the body battery 511 is electrically connected to each of the sockets 563.

[0040] The main battery 511 provides power to the LED light strip 560 of the cover light strip 520.

[0041] When the cover light strip 520 is placed on the main body surface 530, a functional cavity 570 is formed by the reflective heat dissipation surface 531 of the rotating main body 510 and the light-transmitting mounting area 552 of the cover light strip 520.

[0042] The functional cavity 570 has the functions of reflecting and transmitting light and heat dissipation. The light emitted by the LED light source of the cover light strip 520 is reflected by the reflective heat dissipation surface 531 and then shines out through the light-transmitting cover 550. This method can convert the point light source into a surface light source, thereby improving the light efficiency. The heat generated by the LED light strip 560 is mainly conducted to the light-transmitting cover 550 through the light strip fixing adhesive 561 and then dissipated outward from the light-transmitting cover 550.

[0043] The heat generated by the main battery 511 is conducted to the functional cavity 570 through the rotating main body 510 and the reflective heat dissipation coating 533, and then dissipated outward by the light-transmitting cover 550. In practice, the reflective heat dissipation coating 533 can be a silver layer, and the light-transmitting cover 550 can be made of heat-dissipating and light-transmitting glass. In practice, the cover assembler 554 and the main body assembler 534 can be magnetic accumulators, such as magnetic blocks or magnetic sheets. In addition, the cover assembler 554 and the main body assembler 534 can also be designed as a clip, a slot structure, or other similar structures.

[0044] The main design concept of this invention is that the structure of setting the LED light strip 560 on the inner surface of the light-transmitting cover 550 allows for direct heat dissipation through the light-transmitting cover 550. Simultaneously, the light emitted by the LED light source, after being reflected by the reflective heat dissipation surface 531, is projected through the light-transmitting cover 550, converting the point light source into a surface light source, thereby improving luminous efficiency. It is worth emphasizing that the color, power, brightness, etc., of the LED light source in different cover light strips 520 can be set to different values. Users can select different types of cover light strips 520 to form the horizontal light strip body 540 and cover the main body surface 530. Furthermore, users can customize the number of the main body surface 530 and the horizontal light strip body 540, thereby customizing the overall luminous power, light intensity, color, etc., of the light-emitting body 500 to improve luminous efficiency. In addition, the track motor 131 can drive the light-emitting body 500 to slide back and forth on the track unit 110, and the light-emitting body motor 132 can drive the light-emitting body 500 to rotate, further enhancing the glare effect.

[0045] In practical implementation, the light-emitting motor 132 is installed in the track support 600, and a motor battery 134 is installed on one side of the light-emitting motor 132. The motor battery 134 is installed in the track support 600 and is connected to the light-emitting motor 132. In practice, the light-emitting motor 132 can be shaft-connected to the light-emitting body 500 through a coupling or similar device and drive the light-emitting body 500 to rotate.

[0046] In specific implementation, the track unit 110 can be a sliding track, a rotating worm gear, or other similar structures. The preferred embodiments are described below.

[0047] Method 1: The track unit 110 is a sliding track, and the end of the track support 600 is provided with a roller 611. The roller 611 is rolled in the sliding track. The transmission unit 133 is a transmission belt. The track support 600 is fixedly connected to the transmission belt. The track motor 131 drives the transmission belt and drives the track support 600 to reciprocate in the sliding track.

[0048] Method 2: The track unit 110 is a worm gear, and the end of the track support 600 is provided with a worm sleeve 612. The worm sleeve 612 is slidably sleeved on the worm gear. The worm sleeve 612 is the transmission unit 133. The track motor 131 drives the worm gear to rotate, thereby causing the track support 600 to reciprocate on the worm gear.

[0049] In practice, the roof lighting system 100 and the wall lighting system 200 also include a self-charging unit 700.

[0050] The self-charging unit 700 includes a light-emitting element charging base 710 and a motor battery charging base 720. The light-emitting element charging base 710 corresponds to the main body battery 511 in the self-rotating body 510, and the motor battery charging base 720 corresponds to the motor battery 134 in the drive unit 130.

[0051] The light-emitting charging base 710 is provided with a first light-emitting connector 711, and the main battery 511 is provided with a second light-emitting connector 712, with the first light-emitting connector 711 corresponding to the second light-emitting connector 712.

[0052] The motor battery charging base 720 is provided with a first motor connector 721, and the motor battery 134 is provided with a second motor connector 722, with the first motor connector 721 corresponding to the second motor connector 722.

[0053] When the controller 400 detects that the main battery 511 and / or the motor battery 134 are in a low-power state, the controller 400 controls the track motor 131 and the light-emitting motor 132 to move, driving the glare unit 120 to move towards the self-charging unit 700, and connecting the first light-emitting connector 711 to the second light-emitting connector 712, and the first motor connector 721 to the second motor connector 722, so as to perform automatic charging.

[0054] The ground lighting system 300 includes at least one strip-shaped buried light. The strip-shaped buried light includes a buried base 310, a light strip body 320, and a sensor unit 330. The buried base 310 is fixedly buried in the ground, the light strip body 320 is movably disposed in the buried base 310, and the top of the light strip body 320 protrudes above the ground. The sensor unit 330 is disposed between the buried base 310 and the light strip body 320.

[0055] The user's driving force acts on the light strip body 320, and the light strip body 320 vibrates in the buried base 310. The sensor unit 330 samples the frequency of the vibration action to obtain the sampling signal S1.

[0056] In practice, the driving force can be a lateral reciprocating force or a longitudinal reciprocating force. Correspondingly, the shaking motion can be a lateral reciprocating shaking or a longitudinal reciprocating shaking.

[0057] In practical implementation, the strip-shaped buried light also includes an elastic component 340, which is disposed between the buried base 310 and the light strip body 320. The elastic component 340 can provide elastic restoring force to support the shaking action of the light strip body 320.

[0058] In practice, the elastic component 340 includes a spring 341, a spring seat 342, and a spring slot 343. Corresponding to the spring seat 342, a seat groove 344 is provided in the buried base 310. The spring seat 342 is disposed in the seat groove 344, and the spring slot 343 is disposed on the lamp strip body 320. One end of the spring 341 is fixedly disposed in the spring seat 342, and the other end of the spring 341 is engaged in the spring slot 343. The elastic component 340 can elastically dispose the lamp strip body 320 in the buried base 310 to support the shaking action of the lamp strip body 320.

[0059] In practical implementation, the buried base 310 has a base cavity 311, which has two inclined inner surfaces 312, and the lamp strip 320 is disposed in the base cavity 311.

[0060] In specific implementation, the light strip body 320 includes a housing 321, a top cover 322, and a built-in light strip 323. The built-in light strip 323 is fixedly disposed in the housing 321, and the top cover 322 covers the top of the housing 321. The housing 321 has two inclined side plates 324, which correspond to the inner surface 312 of the cavity of the buried base 310. The elastic component 340 is disposed between the side plate 324 and the inner surface 312. The housing 321 also has a top rib 325, which is fixedly disposed at the top edge of the housing 321 and is located above the buried base 310. The top rib 325 can prevent the light strip body 320 from sinking into the buried base 310.

[0061] In specific implementation, the sensor unit 330 can be a light sensor, a capacitive sensor, etc. In practice, the sensor unit 330 includes a detection part and a detected part. The detected part is located at the bottom of the light strip body 320, and the detection part and the detected part are correspondingly located in the buried base 310.

[0062] In practical use, this invention can be implemented as follows: First, the user drives the ground lighting system 300, which generates a sampling signal S1. Then, the sampling signal S1 is transmitted to the controller 400, which converts it into a control information signal S2. Subsequently, the controller 400 transmits the control information signal S2 to both the roof lighting system 100 and the wall lighting system 200, allowing the controller S2 to simultaneously control the operating states of both systems. For example, it can control the switching on / off state and luminous intensity of the roof lighting system 100 and the wall lighting system 200. In practice, the sampling signal S1 can be transmitted to the controller 400 via wired or wireless means, and the control information signal S2 can be transmitted to both the roof lighting system 100 and the wall lighting system 200 via wired or wireless means.

Claims

1. An indoor lighting control system, characterized in that: The system includes a roof lighting system, a wall lighting system, a ground lighting system, and a controller. Both the roof lighting system and the wall lighting system include a track unit, a glare unit, and a drive unit. The track unit is detachably mounted on the roof or wall, and the glare unit is slidably mounted within the track unit. The glare unit includes a light emitter and a track support. One end of the track support is connected to the light emitter, and the other end is slidably disposed within the track unit. The light emitter is slidably positioned on the track unit via the track support. The drive unit includes a track motor and a light emitter motor. The track motor is connected to the track support via a transmission unit, and the light emitter motor is connected to the light emitter. Both the light emitter and the drive unit correspond to a controller. The controller can control the light emitter and the drive unit according to the status of the ground lighting system. The track motor can drive the light emitter to slide back and forth on the track unit, and the light emitter motor can drive the light emitter to rotate. The light-emitting motor is housed within the track support. A motor battery is located on one side of the motor and is also housed within the track support. The motor battery is connected to the light-emitting motor. A main body battery is located within the light-emitting element. The roof lighting system and the wall lighting system also include a self-charging unit. This self-charging unit includes a light-emitting element charging base and a motor battery charging base. The light-emitting element charging base corresponds to the main battery, and the motor battery charging base corresponds to the motor battery of the drive unit. The light-emitting element charging base is equipped with a first light-emitting element connector, and the main battery is equipped with a second light-emitting element connector, which corresponds to the first light-emitting element connector. Similarly, the motor battery charging base is equipped with a first motor connector, and the motor battery is equipped with a second motor connector, which corresponds to the first motor connector. The light-emitting body includes a rotating main body and several cover plate light strips. The cover plate light strips are simultaneously mounted on the rotating main body. Several main body surfaces are formed on the outer surface of the rotating main body, and these main body surfaces are interconnected to form the outer surface of the rotating main body. Each main body surface includes a reflective and heat-dissipating surface and a main body mounting surface. The reflective and heat-dissipating surface is provided with a reflective and heat-dissipating coating, and the main body mounting surface is provided with a main body assembler. The several cover plate light strips form several horizontal light strip bodies, each corresponding one-to-one with a main body surface. Each horizontal light strip body is detachably mounted on one main body surface, and each horizontal light strip body consists of at least one cover plate light strip. Each of these cover light strips includes a light-transmitting cover, an LED light strip, and adhesive for fixing the light strip. The light-transmitting cover has an inner surface divided into a light-transmitting mounting area and an assembly area. The adhesive for fixing the light strip is applied to the light-transmitting mounting area, and the LED light strip is fixedly mounted on the adhesive. The LED light source on the LED light strip corresponds to the reflective heat dissipation surface of the rotating body. A cover assembler is provided in the assembly area, corresponding to the body assembler of the rotating body. The LED light strip has pins, and a corresponding socket is provided on the rotating body. The cover light strip covers the surface of the body, and the cover assembler is assembled on the body assembler so that the cover light strip covers the surface of the body. The pins of the LED light strip are inserted into the sockets, and the LED light strip and the rotating body are electrically connected. The rotating body is provided with a body battery, which is electrically connected to each socket. The body battery provides power to the LED light strip of the cover light strip.

2. The indoor lighting control system as described in claim 1, characterized in that: The ground lighting system includes at least one in-ground strip light, which includes an in-ground base, a light strip body, and a sensor unit. The in-ground base is fixedly buried in the ground, and the light strip body is movably disposed in the in-ground base with its top protruding above the ground. The sensor unit is disposed between the in-ground base and the light strip body. When the user's driving force is applied to the light strip body, the light strip body vibrates within the in-ground base, and the sensor unit samples the frequency of this vibration.

3. An indoor lighting control system as described in claim 2, characterized in that: The strip-shaped in-ground light also includes an elastic component disposed between the in-ground base and the light strip body.

4. An indoor lighting control system as described in claim 3, characterized in that: The elastic component includes a spring, a spring seat, and a spring slot. A seat groove is provided in the buried base corresponding to the spring seat. The spring seat is disposed in the seat groove, and the spring slot is disposed on the light strip body. One end of the spring is fixedly disposed in the spring seat, and the other end of the spring is engaged in the spring slot.

5. An indoor lighting control system as described in claim 4, characterized in that: The buried base has a base cavity with two inclined inner surfaces. The light strip body is disposed in the base cavity and includes a housing, a top cover, and an internal light strip. The internal light strip is fixedly disposed in the housing, and the top cover is disposed on the top of the housing. The housing has two inclined side plates that correspond to the inner surface of the cavity of the buried base. The elastic component is disposed between the side plates and the inner surface of the cavity. The housing also has a top rib that is fixedly disposed on the top edge of the housing and is located above the buried base.

6. An indoor lighting control system as described in claim 1, characterized in that: When the cover plate light strip is placed on the surface of the main body, a functional cavity is formed by the reflective heat dissipation surface of the rotating main body and the light-transmitting installation area of ​​the cover plate light strip.

7. An indoor lighting control system as described in claim 1, characterized in that: The track unit is a sliding track, and the end of the track support is provided with a roller. The roller is rolled in the sliding track. The transmission unit is a transmission belt. The track support is fixedly connected to the transmission belt. The track motor drives the transmission belt and drives the track support to reciprocate in the sliding track.

8. An indoor lighting control system as described in claim 1, characterized in that: The track unit is a worm gear, and the end of the track support is provided with a worm sleeve. The worm sleeve is slidably fitted on the worm gear, and the worm sleeve is the transmission unit. The track motor drives the worm gear to rotate, which in turn drives the track support to reciprocate on the worm gear.

Citation Information

Patent Citations

  • Lamp controller employing acceleration sensor and control method thereof

    CN101784144A

  • Multifunctional LED energy-saving lamp structure

    CN103574371A

  • Power grid-independent underground parking lot anti-collision system based on follow-type buried lamp

    CN109780494A

  • LED lamp system based on direct current carrier communication

    CN115355483A

  • Portable ceiling lamp

    CN206112720U