Infrared light emitting angle adjusting device for infrared communication

Abstract

The application relates to the field of infrared communication technology, in particular to an infrared light emitting angle adjusting device for infrared communication, which aims to solve the problem that the infrared light emitting device of infrared communication cannot timely and flexibly adjust the infrared light coverage range at different installation heights. The device comprises a fixing support, a lens barrel, a guide cylinder, a light emitting source, a rotating component and a convex lens. For the device, the staff can flexibly and timely remotely control the distance between the light emitting source and the convex lens according to the real-time work needs, and flexibly adjust the angle of the convex lens, so that the infrared light coverage range can be timely and flexibly adjusted according to the actual needs at different installation heights, to adapt to different infrared communication scene requirements. In addition, the device has simple structure and low manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of infrared communication technology, specifically to an infrared light emission angle adjustment device for infrared communication. Background Technology

[0002] An infrared optical communication system typically includes an infrared communication base station, an infrared communication terminal, and a data repeater. The PC sends data to the data repeater, which modulates the data with a carrier wave and amplifies it for transmission to the more distant infrared communication base station. The infrared communication base station further amplifies the signal to drive an infrared LED to emit infrared light. The base station then emits the infrared light into space at a suitable angle, achieved by selecting appropriate optoelectronic devices. The infrared communication terminal converts the received infrared light signal into an electrical signal and reconstructs the data through amplification, filtering, detection, shaping, and verification. Finally, the data is transmitted to the AGV via a RS-232 serial port signal.

[0003] However, existing infrared communication infrared light emitting devices cannot adjust the infrared light coverage range in a timely and flexible manner at different installation heights, and cannot adapt to the needs of different infrared communication scenarios. Utility Model Content

[0004] In view of this, the present disclosure provides an infrared light emission angle adjustment device for infrared communication to solve the problem that the infrared light emission device for infrared communication cannot adjust the infrared light coverage range in a timely and flexible manner at different installation heights.

[0005] This disclosure provides an infrared light emission angle adjustment device for infrared communication, comprising: a fixed bracket fixedly connected to an external structure; a lens barrel, a cylindrical structure with an opening at the bottom and a cavity reserved inside, fixedly connected to the fixed bracket; a guide cylinder disposed inside the lens barrel and connected to the lens barrel via a lifting member, wherein the lifting member is controlled to drive the guide cylinder to move up and down within the lens barrel; a light source disposed inside the guide cylinder and emitting infrared light; a rotating member, including a rotating module and a first driving member, wherein the rotating member is disposed outside the lens barrel, the first driving member is fixedly connected to the lens barrel, and the first driving member is engaged with the rotating module via a toothed structure, wherein the first driving member is controlled to drive the rotating module to rotate around the lens barrel; and a convex lens mounted on a connecting bracket fixedly connected to the rotating module, wherein the convex lens is located directly below the light source, and the convex lens is driven to rotate by a second driving member disposed on the connecting bracket to adjust the angle of the infrared light emitted by the light source.

[0006] In some embodiments, the fixing bracket is disposed at the top of the lens barrel and is fixedly connected to an external structure by fasteners.

[0007] In some embodiments, the lifting component includes a first motor, a threaded rod, and a first bushing. The first motor is disposed on the top end face of the guide cylinder, the threaded rod is disposed on the output shaft end of the first motor, the first bushing is fixed on the lens barrel, the lens barrel is provided with a through hole corresponding to the first bushing, and the threaded rod is threadedly engaged with the first bushing.

[0008] In some embodiments, the infrared light emission angle adjustment device for infrared communication includes a guide rod disposed inside the lens barrel, the guide barrel having a guide hole for the guide rod to pass through, and a limit member being provided at the bottom end of the guide rod.

[0009] In some embodiments, the first driving component includes a first connecting plate, a second motor, and a first spur bevel gear. The first connecting plate is fixed to one side of the first lens barrel, the second motor is disposed on the first connecting plate, and the output shaft end of the second motor is provided with the first spur bevel gear.

[0010] In some embodiments, the rotating module includes a first support base, a rolling unit, a first sleeve, and a second spur bevel gear. The first support base is sleeved on the lens barrel, the first sleeve is disposed on the first support base through the rolling unit and is connected to the lens barrel with a clearance fit, and the second spur bevel gear is mounted outside the first sleeve and meshes with the first spur bevel gear.

[0011] In some embodiments, the rolling unit includes a rolling support and a plurality of balls mounted on the upper surface of the rolling support. The rolling support is disposed on the first support base, and the first sleeve rotates about the direction in which the balls are positioned.

[0012] In some embodiments, an annular plate is provided on the outer side of the first sleeve, and the connecting bracket 160 is fixedly connected to the annular plate.

[0013] In some embodiments, the second driving member includes a third motor, which is disposed on the connecting bracket, and the output shaft end of the third motor is provided with a drive shaft, and the convex lens is mounted on the drive shaft.

[0014] Compared with the prior art, the embodiments of this disclosure have at least the following beneficial effects:

[0015] This disclosure provides an infrared light emission angle adjustment device for infrared communication. Operators can remotely control the distance between the light source and the convex lens, and flexibly adjust the angle of the convex lens according to real-time work needs. This allows for timely and flexible adjustment of the infrared light coverage range at different installation heights to adapt to various infrared communication scenarios. Furthermore, the device has a simple structure and low manufacturing cost. Attached Figure Description

[0016] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 The diagram shown is a structural schematic of an infrared light emission angle adjustment device for infrared communication provided in an embodiment of this disclosure.

[0018] Figure 2 The diagram shown is a schematic representation of the infrared light coverage range when the installation height is h1 according to an embodiment of this disclosure.

[0019] Figure 3 The diagram shown is a schematic representation of the infrared light coverage area when the installation height is h2, according to another embodiment of this disclosure.

[0020] Figure 4 The diagram shown is a schematic diagram of the infrared light coverage range when the installation height is h3 according to another embodiment of this disclosure.

[0021] Figure label:

[0022] 10. An infrared light emission angle adjustment device for infrared communication; 20. External structure; 100. Fixed bracket; 110. Lens tube; 120. Guide tube; 130. Light source; 140. Rotating component; 150. Convex lens; 160. Connecting bracket; 170. Guide rod; 171. Limiting component; 200. Lifting component; 210. First motor; 220. Threaded rod; 230. First bushing; 300. First driving component; 310. First connecting plate; 320. Two motors; 330, first spur bevel gear; 400, rotating module; 410, first support base; 420, rolling unit; 421, rolling support; 422, ball bearing; 430, first sleeve; 440, second spur bevel gear; 450, ring plate; 500, second driving component; 510, third motor; 520, drive shaft; X, circumferential direction of the lens barrel; Y, circumferential direction of the drive shaft; h, installation height; d, distance between the light source and the convex lens; θ, angle of the convex lens. Detailed Implementation

[0023] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0024] like Figure 1 As shown, an embodiment of this disclosure provides an infrared light emission angle adjustment device 10 for infrared communication, comprising: a fixed bracket 100, a lens barrel 110, a guide tube 120, a light source 130, a rotating component 140, and a convex lens 150.

[0025] Specifically, the fixed bracket 100 is fixedly connected to the external structure 20, which can be a roof, lighthouse, utility pole, or infrared communication equipment, etc. The bottom of the lens tube 110 has an opening and an internal cavity; this cylindrical structure is fixedly connected to the fixed bracket 100. The guide tube 120 is located inside the lens tube 110 and connected to it via a lifting member 200. Controlling the lifting member 200 causes the guide tube 120 to move up and down within the lens tube 110. The light source 130 is located inside the guide tube 120. Both the lens tube 110 and the guide tube 120 have wiring holes; the power cord of an external power supply device powers the light source 130 through these holes, and the light source 130 emits infrared light. The rotating component 140 includes a rotating module 400 and a first driving component 300. The rotating component 140 is disposed outside the lens barrel 110. The first driving component 300 is fixedly connected to the lens barrel 110 and is engaged with the rotating module 400 through a meshing structure. The first driving component 300 is controlled to rotate, thereby driving the rotating module 400 to rotate around the lens barrel 110. The convex lens 150 is mounted on a connecting bracket 160, which is fixedly connected to the rotating module 400. The convex lens 150 is located directly below the light source 130. The convex lens 150 is driven to rotate by a second driving component 500 disposed on the connecting bracket 160, thereby adjusting the angle of the infrared light emitted by the light source 130.

[0026] The inventors discovered that when the infrared light coverage area of ​​the light source 130 is larger than the required coverage area, infrared communication devices may interfere with each other, potentially leading to information leakage. Conversely, when the infrared light coverage area of ​​the light source 130 is smaller than the required coverage area, the infrared communication signal is weak, which may prevent the proper transmission of critical information. Let's assume the required infrared coverage area is a circular region with radius R. By adjusting the distance d between the light source 130 and the convex lens 150, and the angle θ of the convex lens 150, the infrared light coverage area of ​​the light source 130 can always be a circular region with radius R when the installation height h of the light source 130 changes.

[0027] Furthermore, examples with different installation heights, such as h1, h2, and h3, will be used for illustration. Figure 2 As shown, when the installation height is h1, the distance between the light source 130 and the convex lens 150 is d1, the angle of the convex lens 150 is θ1, which is 0°, and the infrared light coverage of the light source 130 is a circular area with radius R. Figure 3 As shown, when the installation height is h2, the distance between the light source 130 and the convex lens 150 is d2, the angle of the convex lens 150 is θ2, which is 0°, and the infrared light coverage of the light source 130 is a circular area with radius R. Figure 4As shown, when the installation height is h3, the distance between the light source 130 and the convex lens 150 is d3, the angle of the convex lens 150 is θ3, and the infrared light coverage of the light source 130 is a circular area with radius R.

[0028] The infrared light emission angle adjustment device 10 for infrared communication disclosed in this application has a simple structure and low manufacturing cost. The distance between the light source 130 and the convex lens 150 is adjusted by the lifting component 200, and the rotation angle of the convex lens 150 is flexibly adjusted by the rotating component 140 and the second driving component 500. This allows the infrared light coverage range to be adjusted in a timely and flexible manner according to actual needs at different installation heights h, so as to adapt to different infrared communication scenario requirements.

[0029] In some embodiments, such as Figure 1 As shown, the fixed bracket 100 is disposed at the top of the lens barrel 110 and is fixedly connected to the external structure 20 by fasteners.

[0030] Furthermore, the fixing bracket 100 can be several identical connecting plates evenly distributed along the circumferential direction X of the lens barrel 110.

[0031] In some embodiments, such as Figure 1 As shown, the lifting component 200 includes a first motor 210, a threaded rod 220, and a first bushing 230.

[0032] Specifically, the first motor 210 is disposed on the top end face of the guide cylinder 120, the threaded rod 220 is disposed on the output shaft end of the first motor 210, the first bushing 230 is fixed on the lens barrel 110, the lens barrel 110 is provided with a through hole corresponding to the first bushing 230, and the threaded rod 220 is threadedly engaged with the first bushing 230.

[0033] Furthermore, the first motor 210 is fixedly mounted to the center of the top end face of the guide cylinder 120 by fasteners, and the threaded rod 220 is fixedly connected to the output shaft end of the first motor 210. A bushing is provided at the top of the threaded rod 220 to prevent it from weathering. The first bushing 230 is fixedly connected to the center of the inside of the lens barrel 110 by fasteners. A remote control module, such as a wireless communication module (e.g., Bluetooth, Wi-Fi, ZigBee) or a GPRS / 4G / 5G communication module, is installed in the motor control system of the first motor 210. These modules can communicate with external devices to achieve remote control functions. Users can install corresponding control software on devices such as mobile phones, tablets, or computers and pair or connect them with the remote control module. Users can send commands on the control software, which are transmitted to the remote control module via a wireless communication network, thereby controlling the operation of the motor.

[0034] This application only optimizes and improves the mechanical structure of an infrared light emission angle adjustment device 10 for infrared communication, and does not involve the specific implementation of the motor control system. The motor control system and control method involved adopt existing technology, which is common knowledge or conventional technical means that are familiar to those skilled in the art and can be easily implemented.

[0035] In some embodiments, such as Figure 1 As shown, an infrared light emission angle adjustment device 10 for infrared communication includes a guide rod 170 disposed inside a lens barrel 110. A guide hole is provided on the guide cylinder 120 for the guide rod 170 to pass through, and a limit member 171 is provided at the bottom end of the guide rod 170.

[0036] Exemplarily, the guide rod 170 is used to move the guide cylinder 120 vertically under the action of the lifting member 200. The cross-sectional shape of the guide rod 170 can be square, circular, or elliptical. This application uses a circular shape as an example. The top of the guide rod 170 and the top end face of the lens barrel 110 can be fixedly connected or loosely fitted. The length of the guide rod 170 is 1.5 to 2 times the length of the threaded rod 220, and the tail end of the guide rod 170 is threaded. The limiting member 171 can be a nut or a threaded rotating body. The function of the limiting member 171 is to prevent the guide cylinder 120 from falling outside the lens barrel 110.

[0037] In some embodiments, such as Figure 1 As shown, the first driving component 300 includes a first connecting plate 310, a second motor 320, and a first spur bevel gear 430.

[0038] Specifically, the first connecting plate 310 is fixed to one side of the first lens barrel 110, the second motor 320 is mounted on the first connecting plate 310, and the output shaft end of the second motor 320 is provided with a first spur bevel gear 430.

[0039] Furthermore, the first connecting plate 310 is provided with reinforcing ribs at the bend to enhance the strength and stability of the first connecting plate 310. The output end of the second motor 320 is fixedly connected to the first spur bevel gear 430. The control method of the second motor 320 is similar to that of the first motor 210, and will not be described in detail here.

[0040] In some embodiments, such as Figure 1 As shown, the rotating module 400 includes a first support base 410, a rolling unit 420, a first sleeve 430, and a second spur bevel gear 440.

[0041] Specifically, the first support 410 is sleeved on the lens barrel 110, the first sleeve 430 is set on the first support 410 through the rolling unit 420 and is connected to the lens barrel 110 with clearance fit, and the second spur bevel gear 440 is installed outside the first sleeve 430 and meshes with the first spur bevel gear 430.

[0042] Furthermore, the first support 410 is fixedly connected to the outer wall of the lens barrel 110. The first support 410 can be a rotating body such as a bushing, sleeve, or ring plate. The first spur bevel gear 430 and the second spur bevel gear 440 have the same module, pressure angle, and cone distance.

[0043] In some embodiments, such as Figure 1 As shown, the rolling unit 420 includes a rolling support 421 and a plurality of balls 422 assembled to the upper end face of the rolling support 421. The rolling support 421 is disposed on the first support 410, and the first sleeve 430 rotates about the balls 422 in a set direction.

[0044] Furthermore, the rolling support 421 can be a rotating body such as a sleeve, bushing, or ring plate, with blind holes evenly distributed along the circumferential direction X of the lens tube 110 on its top surface. The shape of the blind holes can be square, regular polygonal, or circular, and the diameter of the blind holes is equal to the diameter of the ball 422. The rolling support 421 can also have an annular groove on its top, the width of which is equal to the diameter of the ball 422. The number of balls 422 is at least three, and when the balls 422 are placed in the blind holes or annular grooves of the rolling support, the top of the balls 422 must be higher than the top end face of the rolling support 421.

[0045] In some embodiments, such as Figure 1 As shown, an annular plate 450 is provided on the outer side of the first sleeve 430, and the connecting bracket 160 is fixedly connected to the annular plate 450.

[0046] Furthermore, the ring plate 450 is fixedly connected to the first sleeve 430, and the bending part of the connecting bracket 160 is provided with reinforcing ribs to enhance the strength and stability of the connecting bracket 160.

[0047] In some embodiments, such as Figure 1 As shown, the second driving component 500 includes a third motor 510, which is mounted on the connecting bracket 160. The output shaft of the third motor 510 is provided with a drive shaft 520, and the convex lens 150 is mounted on the drive shaft 520.

[0048] Furthermore, the control method of the third motor 510 is similar to that of the first motor 210, and will not be described again here. The output shaft of the third motor 510 is fixedly connected to the drive shaft 520. The drive shaft 520 is fixedly connected to the convex lens 150, and the drive shaft 520 passes through the geometric center of the convex lens 150.

[0049] Furthermore, the second motor 320 drives the first spur bevel gear 330 to rotate. The first spur bevel gear 330, through its meshing with the second spur bevel gear 440, drives the second spur bevel gear 440 to rotate as well. The rotating second spur bevel gear 440 drives the connecting bracket 160 to rotate, causing the convex lens 150 to rotate in the circumferential direction X of the lens barrel 110 along with the connecting bracket 160. When the third motor 510 rotates, the drive shaft 520 rotates synchronously. Driven by the drive shaft 520, the convex lens 150 rotates around the circumferential direction Y of the drive shaft 520. The angle of the convex lens 150 changes, and the refraction angle of the infrared light emitted by the light source 130 changes accordingly when it passes through the convex lens.

[0050] In the embodiments of this application, fasteners specifically refer to bolts and screws. If the form of connection is not explicitly defined, it can be a detachable connection such as a bolt and nut, screw, snap-fit, or magnetic connection. In some connections where there is no particular requirement for a non-detachable fit, a non-detachable connection can be achieved through welding, bonding, or adhesive bonding.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An infrared light emission angle adjustment device for infrared communication, characterized in that, include: Fixed bracket, for fixed connection to the external structure; The lens barrel is a cylindrical structure with an opening at the bottom and a pre-reserved cavity inside, which is fixedly connected to the fixing bracket; A guide tube is disposed inside the lens barrel and connected to the lens barrel through a lifting component. The lifting component is controlled to move up and down inside the lens barrel. A light source is located inside the guide cylinder and emits infrared light; A rotating component includes a rotating module and a first driving component. The rotating component is disposed outside the lens barrel. The first driving component is fixedly connected to the lens barrel and is engaged with the rotating module through a meshing structure. The first driving component is controlled to rotate so as to drive the rotating module to rotate around the lens barrel. A convex lens is mounted on a connecting bracket, which is fixedly connected to the rotating module. The convex lens is located directly below the light source. The convex lens is driven to rotate by a second driving component disposed on the connecting bracket, so as to adjust the angle of the infrared light emitted by the light source.

2. The infrared light emission angle adjustment device for infrared communication according to claim 1, characterized in that, The fixed bracket is located at the top of the lens barrel and is fixedly connected to the external structure by fasteners.

3. The infrared light emission angle adjustment device for infrared communication according to claim 1, characterized in that, The lifting component includes a first motor, a threaded rod, and a first bushing. The first motor is disposed on the top end face of the guide cylinder, the threaded rod is disposed on the output shaft end of the first motor, the first bushing is fixed on the lens barrel, the lens barrel is provided with a through hole corresponding to the first bushing, and the threaded rod is threadedly engaged with the first bushing.

4. The infrared light emission angle adjustment device for infrared communication according to claim 1, characterized in that, It includes a guide rod disposed inside the lens barrel, the guide barrel having a guide hole for the guide rod to pass through, and a limit member being provided at the bottom end of the guide rod.

5. An infrared light emission angle adjustment device for infrared communication according to claim 1, characterized in that, The first driving component includes a first connecting plate, a second motor, and a first spur bevel gear. The first connecting plate is fixed to one side of the lens barrel, the second motor is mounted on the first connecting plate, and the output shaft end of the second motor is provided with the first spur bevel gear.

6. The infrared light emission angle adjustment device for infrared communication according to claim 5, characterized in that, The rotating module includes a first support base, a rolling unit, a first sleeve, and a second spur bevel gear. The first support base is sleeved on the lens barrel. The first sleeve is mounted on the first support base through the rolling unit and is connected to the lens barrel with a clearance fit. The second spur bevel gear is mounted outside the first sleeve and meshes with the first spur bevel gear.

7. An infrared light emission angle adjustment device for infrared communication according to claim 6, characterized in that, The rolling unit includes a rolling support and a plurality of balls assembled to the upper surface of the rolling support. The rolling support is disposed on the first support base, and the first sleeve rotates about the direction in which the balls are set.

8. An infrared light emission angle adjustment device for infrared communication according to claim 6, characterized in that, The outer side of the first sleeve is provided with an annular plate, and the connecting bracket is fixedly connected to the annular plate.

9. An infrared light emission angle adjustment device for infrared communication according to claim 8, characterized in that, The second driving component includes a third motor, which is mounted on the connecting bracket. The output shaft of the third motor is provided with a drive shaft, and the convex lens is mounted on the drive shaft.

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