CN218243526U

CN218243526U - LED-based visible light communication device

Info

Publication number: CN218243526U
Application number: CN202222658945.5U
Authority: CN
Inventors: 魏同成; 杜勇; 张波
Original assignee: Xinjiang Normal University
Current assignee: Xinjiang Normal University
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-01-06
Anticipated expiration: 2032-10-10

Abstract

The utility model relates to a visible light communication technical field, concretely relates to visible light communication device based on LED, including the lamp shade, the inside of lamp shade is provided with LED communication subassembly, LED communication subassembly includes the mounting base and sets up respectively the LED lamp body board and the dirver circuit board of mounting base both sides, still be provided with drive assembly in the lamp shade, drive assembly locates dirver circuit board's homonymy and is used for the drive LED communication subassembly for the lamp shade back-and-forth movement, the rear side of lamp shade is provided with the mounting box, the lamp shade with be provided with the division board between the mounting box, it just to have seted up the installation cavity in the mounting box the installation intracavity is provided with the controller, LED communication subassembly and dirver assembly all with the controller electricity is connected. The communication range of the LED-based visible light communication device can be flexibly adjusted to adapt to various visible light communication scenes.

Description

LED-based visible light communication device

Technical Field

The utility model relates to a visible light communication technical field especially relates to a visible light communication device based on LED.

Background

The visible light communication technology is a novel wireless light communication technology developed on the white light LED technology, and is characterized in that a light emitting response characteristic of high-speed on-off of a semiconductor (LED) device is utilized, an optical carrier signal which is emitted by the LED and is modulated at a high speed and cannot be detected by naked eyes is used for modulating and transmitting information, then a photoelectric conversion device such as a photodiode is used for receiving the optical carrier signal, the information is obtained, and the visible light communication and the LED illumination are combined to construct an LED illumination and communication dual-purpose base station lamp.

There are many link modes of the indoor wireless optical communication system, which can be generally divided into directional communication and indefinite communication. The distinction between directional and non-directional communication is mainly due to the issue of the angle of transmission. A transmitter is called a directional transmitter if it emits a beam with a small divergence angle and the emitted beam is nearly parallel. Similarly, if the field of view of the receiver is small, it is called a directional receiver. If the transmitter and the receiver are both directional, a link is established when the two ends of the receiving and sending are aligned, and the link is called a directional link. In contrast, the non-directional link uses a wide-angle receiver and transmitter. The angle between the LED lamp strip and the lampshade of the visible light communication transmitting device in the prior art is relatively fixed and cannot be adjusted, so that the communication range of the transmitting device is fixed and cannot be adjusted, and the transmitting device is not easy to debug after the lamp body is installed, so that the transmitting device needs to be improved to a certain extent.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a visible light communication device based on LED, but the communication range of visible light communication device based on LED is nimble to be adjusted to adapt to multiple visible light communication scene.

In order to achieve the technical effects, the utility model adopts the following technical scheme:

the utility model provides a visible light communication device based on LED, includes the lamp shade, the inside of lamp shade is provided with LED communication subassembly, LED communication subassembly includes the mounting base and sets up respectively LED lamp body board and the dirver circuit board of mounting base both sides, still be provided with drive assembly in the lamp shade, drive assembly locates dirver circuit board's homonymy and is used for the drive LED communication subassembly for the lamp shade back-and-forth movement, the rear side of lamp shade is provided with the mounting box, the lamp shade with be provided with the division board between the mounting box, set up the installation cavity in the mounting box just be provided with the controller in the installation cavity, LED communication subassembly and dirver assembly all with the controller electricity is connected.

Further, the driving assembly comprises a first screw shaft and a second screw shaft which are symmetrically arranged on two sides of the lampshade, a first slider is slidably mounted on the first screw shaft, a second slider is slidably mounted on the second screw shaft, a first connecting rod is hinged to the first slider, one end, away from the first slider, of the first connecting rod is hinged to the mounting base, a second connecting rod is hinged to the second slider, one end, away from the second slider, of the second connecting rod is hinged to the mounting base, the driving assembly further comprises a power assembly used for driving the first screw shaft and the second screw shaft to rotate, and the power assembly is electrically connected with the controller.

Further, the power assembly comprises a first motor and a second motor which are arranged in the installation cavity, one end of the first screw shaft extends into the installation cavity and is fixedly connected with the output end of the first motor, one end of the second screw shaft extends into the installation cavity and is fixedly connected with the output end of the second motor, and the first motor and the second motor are both electrically connected with the controller.

Furthermore, the partition plate is provided with an air outlet through hole between the first screw shaft and the second screw shaft, the section of the mounting box is circular, an air outlet channel is arranged inside the mounting box, the air outlet channel and the air outlet through hole are coaxially arranged, a miniature induced draft fan is arranged in the air outlet channel, the miniature induced draft fan is electrically connected with the controller, and an air inlet channel is further arranged on the lamp shade.

Further, the air inlet channel comprises a first air inlet through hole and a second air inlet through hole, a spotlight cup is arranged on the outer side of the LED communication assembly and is fixedly installed inside the lampshade, an annular air inlet plate is arranged between the front end of the spotlight cup and the lampshade, the first air inlet through holes are uniformly formed in the air inlet plate at intervals, and the second air inlet through holes are formed in the spotlight cup and are close to one end of the air inlet plate and are uniformly distributed along the circumferential direction of the spotlight cup.

Further, the air inlet plate with the connection can be dismantled to the lamp shade, just the inboard of air inlet through-hole is provided with the dust removal filter screen.

Further, the mounting base include with the first heating panel of drive circuit board butt and with the second heating panel of LED lamp body board butt, through a plurality of spliced pole fixed connection between first heating panel and the second heating panel, be provided with first heat dissipation fin and second heat dissipation fin relatively on first heating panel and the second heating panel, first heat dissipation fin sets up with second heat dissipation fin is crisscross.

Furthermore, one side of the first heat dissipation plate close to the partition plate is further symmetrically provided with two hinged seats, and the hinged seats are respectively located on two sides of the first heat dissipation plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a pair of visible light communication device based on LED is through setting up LED communication subassembly in the lamp shade to set up drive assembly and be used for driving this LED communication subassembly and be in back-and-forth movement in the lamp shade, thereby change this LED communication subassembly's emission angle scope, with the realization to the regulation of communication range, but be applicable to directional communication and non-directional communication simultaneously. Meanwhile, the LED-based visible light communication device is used for installing the LED lamp body plate and the driving circuit board through the installation base arranged on the LED communication assembly, and the installation base is used for dissipating heat through the air outlet channel arranged on the installation box and the air outlet through hole arranged on the partition plate, so that heat of the LED communication assembly is rapidly discharged, the ambient temperature of the LED communication assembly during working is reduced, and stable communication is guaranteed.

Drawings

Fig. 1 is a schematic view of an overall structure of a visible light communication device based on an LED according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a partial enlarged structure at a position a of a visible light communication device based on an LED according to an embodiment of the present invention;

the reference signs are: 10, a lamp shade, 20, an led lamp body panel, 201, an led lamp bead, 21, a driving circuit board, 30, a first heat dissipation plate, 31, a first heat dissipation fin, 32, a first air flow hole, 33, a hinge base, 40, a second heat dissipation plate, 41, a second heat dissipation fin, 42, a second air flow hole, 43, a connection column, 50, a mounting box, 51, a mounting cavity, 52, a partition plate, 521, an air outlet through hole, 53, a controller, 60, a mounting plate, 61, a first screw shaft, 611, a first slider, 612, a first connection rod, 62, a second screw shaft, 621, a second slider, 622, a second connection rod, 63, a first motor, 64, a second motor, 70, an air outlet channel, 71, a miniature induced draft fan, 72, a protective screen plate, 80, an air inlet plate, 81, a first air inlet through hole, 82, a dust removal filter screen, 90, a spotlight cup, 91, a second air inlet through hole, 92, and a temperature sensor.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-2, the LED-based visible light communication device provided in this embodiment includes a lamp shade 10, an LED communication component is disposed inside the lamp shade 10, the LED communication component includes a mounting base, and an LED lamp body plate 20 and a driving circuit board 21 that are respectively disposed on two sides of the mounting base, the LED lamp body plate 20 is disposed on an opening side of the lamp shade 10, and a plurality of LED lamp beads 201 are disposed on the LED lamp body plate 20. The LED communication lamp is characterized in that a driving assembly is further arranged in the lampshade 10, the driving assembly is arranged on the same side of the driving circuit board 21 and used for driving the LED communication assembly to move back and forth relative to the lampshade 10, a mounting box 50 is further arranged on the rear side of the lampshade 10, a partition plate 52 is arranged between the lampshade 10 and the mounting box 50, a mounting cavity 51 is formed in the mounting box 50, a controller 53 is arranged in the mounting cavity 51, and the LED communication assembly and the driving assembly are both electrically connected with the controller 53. In specific implementation, the controller 53 controls the driving assembly to move the LED communication assembly back and forth relative to the lampshade 10, so as to adjust the communication range. Specifically, when the driving assembly drives the LED communication assembly to move outwards relative to the lampshade 10, the emission angle thereof is increased, and therefore, the illumination range and the communication range are both correspondingly enlarged, and when the driving assembly drives the LED communication assembly to move inwards relative to the lampshade 10, the emission angle thereof is reduced, and therefore, the illumination range and the communication range are both correspondingly reduced. Therefore, the LED-based visible light communication device can adjust the communication range after the installation is finished.

In this embodiment, in order to drive the LED communication assembly to move back and forth relative to the lamp housing 10, the driving assembly includes a first screw shaft 61 and a second screw shaft 62 symmetrically disposed on two sides of the lamp housing 10, a first slider 611 is slidably mounted on the first screw shaft 61, a second slider 621 is slidably mounted on the second screw shaft 62, a first link 612 is hinged on the first slider 611, one end of the first link 612 away from the first slider 611 is hinged to the mounting base, a second link 622 is hinged on the second slider 621, one end of the second link 622 away from the second slider 621 is hinged to the mounting base, the driving assembly further includes a power assembly for driving the first screw shaft 61 and the second screw shaft 62 to rotate, specifically, the power assembly includes a first motor 63 and a second motor 64 disposed in the mounting cavity 51, one end of the first screw shaft 61 extends into the mounting cavity 51 and is fixedly connected to an output end of the first motor 63, one end of the second screw shaft 62 extends into the mounting cavity 51 and is electrically connected to the second motor 64, and the first motor 53 and the second motor 64 are electrically connected to the mounting cavity 51 and the second motor 53. The partition plate 52 is further provided with an L-shaped mounting plate 60, the mounting plate 60 is arranged opposite to the first screw shaft 61 and the second screw shaft 62, one end of the mounting plate 60 is fixedly connected with the partition plate 52, the other end of the mounting plate 60 is provided with a rotary mounting seat, and the first screw shaft 61 and the second screw shaft 62 are both rotatably connected with the mounting plate 60 through the rotary mounting seat. In practical implementation, the controller 53 controls the first motor 63 and the second motor 64 to work simultaneously, so as to drive the first screw shaft 61 and the second screw shaft 62 to rotate simultaneously, so that the first slider 611 drives the first link 612, and the second slider 621 drives the second link 622 to drive the LED communication component to move back and forth relative to the lampshade 10, so as to adjust the illumination range thereof. In addition, in operation, the controller 53 can drive the first motor 63 or the second motor 64 separately, so that the first slider 611 or the second slider 621 moves separately, thereby realizing the deflection of the LED lamp body plate 20, and adjusting the communication area, so that the LED-based visible light communication device has high flexibility.

In this embodiment, the partition plate 52 is provided with an air outlet through hole 521 between the first screw shaft 61 and the second screw shaft 62, the cross section of the mounting box 50 is circular, an air outlet channel 70 is disposed inside the mounting box 50, and the air outlet channel 70 and the air outlet through hole 521 are coaxially disposed, so as to discharge the hot air in the lamp shade 10 to the outside. Be provided with miniature draught fan 71 in the air-out passageway 70, miniature draught fan 71 with the controller 53 electricity is connected, still be provided with inlet air duct on the lamp shade 10, inlet air duct includes first inlet air hole 81 and second inlet air hole 91. Specifically, the outside of LED communication module is provided with spotlight cup 90 just spotlight cup 90 fixed mounting is in the inside of lamp shade 10, spotlight cup 90's front end with be provided with annular air inlet plate 80 between the lamp shade 10, first air inlet through-hole 81 interval is seted up uniformly on the air inlet plate 80, and second air inlet through-hole 91 sets up spotlight cup 90 is close to on the lateral wall of the one end of air inlet plate 80, and follows spotlight cup 90's circumference evenly distributed to it is inside that the air gets into this spotlight cup 90 after passing through this first air inlet through-hole 81 and second air inlet through-hole 91 in proper order. When the LED communication assembly is specifically implemented, the controller 53 controls the miniature induced draft fan 71 to be started, cold air is sucked into the air inlet channel, and hot air in the lampshade 10 is discharged from the air outlet through hole 521 and the air outlet channel 70, so that the heat dissipation of the LED communication assembly is facilitated. Meanwhile, in order to protect the miniature induced draft fan 71 conveniently, the air outlet channel 70 is also provided with a protection screen 72 outside the miniature induced draft fan 71. In addition, in order to improve the stable operation of the LED communication assembly, a temperature sensor 92 is further disposed inside the spotlight cup 90, the temperature sensor 92 is electrically connected to the controller 53, when the LED communication assembly is implemented, the temperature sensor 92 detects the temperature inside the spotlight cup 90 and feeds back the detection result to the controller 53, and the controller 53 controls the miniature induced draft fan 71 to operate, so that the heat dissipation of the LED communication assembly is enhanced.

In this embodiment, in order to ensure good heat dissipation of the LED communication assembly, the mounting base includes a first heat dissipation plate 30 abutting against the driving circuit board 21 and a second heat dissipation plate 40 abutting against the LED lamp body board 20, the first heat dissipation plate 30 and the second heat dissipation plate 40 are disposed opposite to each other, the first heat dissipation plate 30 and the second heat dissipation plate 40 are both circular, the heat dissipation area of the first heat dissipation plate 30 is larger than the heat dissipation area of the second heat dissipation plate 40, the first heat dissipation plate 30 and the second heat dissipation plate 40 are fixedly connected by a plurality of connection posts 43, the first heat dissipation plate 30 and the second heat dissipation plate 40 are oppositely provided with a first heat dissipation fin 31 and a second heat dissipation fin 41, the first heat dissipation fin 31 and the second heat dissipation fin 41 are disposed in a staggered manner, in addition, the first heat dissipation plate 30 is provided with a plurality of first air holes 32 in a region outside the driving circuit board 21, and the second heat dissipation plate 40 is provided with a plurality of second air flow through holes 42 in a region outside the LED lamp body board 20, so as to further enhance heat dissipation.

In this embodiment, two hinge seats 33 are symmetrically disposed on a side of the first heat dissipation plate 30 close to the partition plate 52, the hinge seats 33 are respectively located on two sides of the first heat dissipation plate 30, and one ends of the first connecting rod 612 and the second connecting rod 622 are hinged to the hinge seats 33.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the technical solutions of the present invention can be modified or replaced with other equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. An LED-based visible light communication device, comprising: including lamp shade (10), the inside of lamp shade (10) is provided with LED communication assembly, LED communication assembly includes the mounting base and sets up respectively LED lamp body board (20) and the dirver circuit board (21) of mounting base both sides, still be provided with drive assembly in lamp shade (10), drive assembly locates dirver circuit board (21) the homonymy and is used for the drive LED communication assembly for lamp shade (10) back-and-forth movement, the rear side of lamp shade (10) is provided with mounting box (50), lamp shade (10) with be provided with division board (52) between mounting box (50), it just to have seted up installation cavity (51) in mounting box (50) be provided with controller (53) in installation cavity (51), LED communication assembly and drive assembly all with controller (53) electricity is connected.

2. An LED-based visible light communication device according to claim 1, wherein: the driving assembly comprises a first screw shaft (61) and a second screw shaft (62) which are symmetrically arranged on two sides of the lampshade (10), a first sliding block (611) is slidably arranged on the first screw shaft (61), a second sliding block (621) is slidably arranged on the second screw shaft (62), a first connecting rod (612) is hinged on the first sliding block (611), one end, far away from the first sliding block (611), of the first connecting rod (612) is hinged with the mounting base, a second connecting rod (622) is hinged on the second sliding block (621), one end, far away from the second sliding block (621), of the second connecting rod (622) is hinged with the mounting base, the driving assembly further comprises a power assembly for driving the first screw shaft (61) and the second screw shaft (62) to rotate, and the power assembly is electrically connected with the controller (53).

3. An LED-based visible light communication device according to claim 2, wherein: the power assembly comprises a first motor (63) and a second motor (64) which are arranged in the installation cavity (51), one end of the first screw shaft (61) extends into the installation cavity (51) and is fixedly connected with the output end of the first motor (63), one end of the second screw shaft (62) extends into the installation cavity (51) and is fixedly connected with the output end of the second motor (64), and the first motor (63) and the second motor (64) are both electrically connected with the controller (53).

4. An LED-based visible light communication device according to claim 2, wherein: an air outlet through hole (521) is formed in the partition plate (52) between the first screw shaft (61) and the second screw shaft (62), the section of the mounting box (50) is circular, an air outlet channel (70) is arranged inside the mounting box (50), the air outlet channel (70) and the air outlet through hole (521) are coaxially arranged, a miniature induced draft fan (71) is arranged in the air outlet channel (70), the miniature induced draft fan (71) is electrically connected with the controller (53), and an air inlet channel is further arranged on the lampshade (10).

5. An LED-based visible light communication device according to claim 4, wherein: the utility model discloses a LED lamp, including LED communication component, air inlet channel, spotlight lamp cup (10), first air inlet through hole (81) and second air inlet through hole (91), the outside of LED communication component is provided with spotlight lamp cup (90) just spotlight lamp cup (90) fixed mounting is in the inside of lamp shade (10), the front end of spotlight lamp cup (90) with be provided with annular air inlet plate (80) between lamp shade (10), first air inlet through hole (81) interval is seted up uniformly on air inlet plate (80), second air inlet through hole (91) set up spotlight lamp cup (90) are close to the one end of air inlet plate (80), and follow the circumference evenly distributed of spotlight lamp cup (90).

6. An LED-based visible light communication device according to claim 5, wherein: the air inlet plate (80) and the lampshade (10) can be detachably connected, and a dust removal filter screen (82) is arranged on the inner side of the air inlet through hole.

7. An LED-based visible light communication device according to claim 1, wherein: the mounting base include with first heating panel (30) of dirver circuit board (21) butt and with second heating panel (40) of LED lamp body board (20) butt, through a plurality of spliced pole (43) fixed connection between first heating panel (30) and second heating panel (40), be provided with first heat dissipation fin (31) and second heat dissipation fin (41) on first heating panel (30) and second heating panel (40) relatively, first heat dissipation fin (31) and second heat dissipation fin (41) set up in a staggered way.

8. An LED-based visible light communication device according to claim 7, wherein: one side of the first heat dissipation plate (30) close to the partition plate (52) is further symmetrically provided with two hinged seats (33), and the hinged seats (33) are respectively located on two sides of the first heat dissipation plate (30).