Intelligent directional irradiation module and illumination control method

Abstract

The invention discloses an intelligent directional irradiation module and an illumination control method.The intelligent directional irradiation module comprises a bottom plate, a plurality of LED light source modules, a microwave detection module, an infrared detection module, a lens moving module and a control module are arranged on the bottom plate, and the distance between the LED light source modules and an irradiated object and the outline of the irradiated object are obtained; the received distance data and contour data are compared with preset target parameters, the lens moving module is controlled to work according to a comparison result, the focal length is adjusted, the size of a light-emitting beam of the LED light source module is changed, an illuminated object is highlighted, white balance on the illuminated surface of the object is reduced, and overexposure is controlled; therefore, the local detail features of the illuminated object are clearly presented, and the illumination effect and the illumination quality of local illumination are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of LED lighting control, and in particular relates to an intelligent directional illumination module and a lighting control method. Background Art

[0002] With the development of the times, people have higher and higher requirements for the presentation of lighting details. When lighting indoors or in other corresponding scenes, it is necessary to focus or partially illuminate objects according to the scene requirements. Most of the lighting on the market uses wide-area and wide-angle lighting, which scatters the light beam and has poor detail presentation. Under the same LED light power, if the object is slightly far away from the light source, the light intensity of the object is low, and the details of the object cannot be accurately and precisely presented; if the object is close to the light source, the illuminated surface of the object may have obvious high exposure or high white balance, and the object cannot be clearly observed, and the details of the object cannot be clearly presented. Summary of the invention

[0003] In order to overcome one or more of the above-mentioned technical defects, the present invention provides an intelligent directional illumination module and a lighting control method, which can reduce the white balance on the illuminated surface of the object, control overexposure, make the local detail features of the illuminated object clearly presented, and improve the lighting effect and lighting quality of local lighting.

[0004] In order to solve the above problems, the first aspect of the present invention provides an intelligent directional illumination module, including a base plate, on which a plurality of LED light source modules and:

[0005] A microwave detection module, used to detect the distance between the LED light source module and the illuminated object;

[0006] Infrared detection module, used to detect the outline of the illuminated object;

[0007] A lens moving module, arranged in the light emitting direction of the LED light source module, and used for changing the size of the light beam of the LED light source module;

[0008] The control module is respectively connected to the LED light source module, the microwave detection module, the infrared detection module and the lens moving module, obtains the distance between the LED light source module and the illuminated object and the outline of the illuminated object, compares the received distance data and outline data with the preset target parameters, and controls the operation of the lens moving module according to the comparison result.

[0009] Further, the lens moving module includes a lens module and a lens driving unit, the lens module includes a concave lens and a convex lens, and the concave lens is arranged between the convex lens and the LED light source module;

[0010] The lens driving unit comprises a servo motor connected to the control module, a concave lens fixture and a convex lens fixture, wherein one end of the concave lens fixture is connected to the first output end of the servo motor, and the other end is fixedly connected to the concave lens;

[0011] One end of the convex lens fixture is connected to the second output end of the servo motor, and the other end is fixedly connected to a convex lens.

[0012] Furthermore, the LED light source module includes a main lighting unit and an auxiliary lighting unit, wherein the main lighting unit includes a plurality of white LEDs, and is used to work according to the first lighting instruction of the control module.

[0013] The auxiliary lighting unit includes a plurality of red LEDs, green LEDs and blue LEDs, and is used to work according to the second lighting instruction of the control module.

[0014] Furthermore, it also includes a power supply module to provide working power for the LED light source module, microwave detection module, infrared detection module, lens moving module and control module.

[0015] Furthermore, the LED light source module includes a PCB board and a plurality of LED light emitting chips arranged on the PCB board at fixed intervals.

[0016] The PCB board includes a metal substrate layer, a polypropylene film layer, a first copper foil layer, a FR-4 material layer and a second copper foil layer which are sequentially laminated from bottom to top. The FR-4 layer is provided with via holes, and the surface of the second copper foil layer is coated with solder resist white oil.

[0017] A second aspect of the present invention provides a lighting control method, using the above-mentioned intelligent directional illumination module, comprising:

[0018] Real-time detection of the distance between the LED light source module and the illuminated object and the outline of the illuminated object;

[0019] The received distance data and contour data are compared with the preset target parameters, and the lens moving module is controlled to move forward and backward according to the comparison result until the collected distance data and contour data meet the preset target parameters.

[0020] Furthermore, the received distance data and profile data are compared with preset target parameters, and the lens moving module is controlled to move forward and backward according to the comparison result, including:

[0021] generating a planar image data matrix of the illuminated object based on the received distance data and contour data;

[0022] Comparing the plane image data matrix of the irradiated object with the target plane image data matrix to obtain a difference value between the two;

[0023] A first lighting instruction is sent to the LED light source module and a lens movement instruction is sent to the lens movement module according to the difference value, wherein the first lighting instruction includes the lighting brightness information of the main lighting unit, and the lens movement instruction includes the movement information of the lens module.

[0024] Furthermore, it also includes:

[0025] A second lighting instruction is sent to the LED light source module according to the difference value, where the second lighting instruction includes a lighting color type of the auxiliary lighting unit.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The invention discloses an intelligent directional illumination module and a lighting control method based on the intelligent directional illumination module. The intelligent directional illumination module comprises a base plate, on which a plurality of LED light source modules and a microwave detection module, an infrared detection module, a lens moving module and a control module are arranged. The base plate detects the distance between the LED light source module and an illuminated object and detects the contour of the illuminated object. The control module compares the received distance data and contour data with preset target parameters, controls the movement of a lens moving module arranged in the light emission direction of the LED light source module according to the comparison result, adjusts the focal length, changes the size of the light beam of the LED light source module, highlights the illuminated object, realizes reducing the white balance on the illuminated surface of the object, controls overexposure, makes the local detail features of the illuminated object clearly presented, and improves the lighting effect and lighting quality of the local lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 A schematic diagram of the intelligent directional illumination module described in the embodiment;

[0030] Figure 2 A structural side view of the intelligent directional illumination module described in the embodiment;

[0031] Figure 3 It is a structural front view of the intelligent directional illumination module described in the embodiment;

[0032] Figure 4 A schematic diagram of a perspective moving module of the intelligent directional illumination module described in the embodiment;

[0033] Figure 5 A structural diagram of a PCB board of the intelligent directional illumination module described in the embodiment;

[0034] Figure 6 A schematic diagram of a circular layout of the intelligent directional illumination module described in the embodiment;

[0035] Figure 7 A schematic diagram of a rectangular layout of the intelligent directional illumination module described in the embodiment;

[0036] Figure 8 is a flow chart of the lighting control method described in the embodiment;

[0037] Fig. 9 is a flow chart of step S2 of the lighting control method according to the embodiment;

[0038] Marking description: 100, LED light source module; 110, main lighting unit; 120, auxiliary lighting unit; 200, microwave detection module; 300, infrared detection module; 400, lens moving module; 410, lens module; 411, concave lens; 412, convex lens; 420, lens driving unit; 421, servo motor; 422, concave lens fixture; 423, convex lens fixture; 500, control module; 600, power module; 801, metal substrate layer; 802, polypropylene film layer; 803, first copper foil layer; 804, FR-4 layer; 805, second copper foil layer; 806, white solder mask; 810, via hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The present application embodiment discloses an intelligent directional illumination module, such as Figure 1-3 , including a base plate A, on which are arranged a number of LED light source modules 100 and microwave detection modules 200, infrared detection modules 300, lens moving modules 400 and control modules 500. The microwave detection module 200 is used to detect the distance between the LED light source module 100 and the illuminated object; the infrared detection module 300 is used to detect the contour of the illuminated object; the lens moving module 400 is arranged in the light emission direction of the LED light source module 100, and is used to change the size of the light beam of the LED light source module 100; the control module 500 is respectively connected to the LED light source module 100, the microwave detection module 200, the infrared detection module 300 and the lens moving module 400, to obtain the distance between the LED light source module 100 and the illuminated object and the contour of the illuminated object, compare the received distance data and contour data with the preset target parameters, and control the operation of the lens moving module according to the comparison result. The lens moving range of the lens moving module in this embodiment is as follows: Figure 2 As shown, the specific moving range can be set according to actual needs.

[0045] Specifically, the microwave detection module 200 and the infrared detection module 300 can be integrated on the chip RCWL-9196.

[0046] In one embodiment, the lens moving module 400 includes a lens module 410 and a lens driving unit 420. Figure 4The lens module 410 includes a concave lens 411 and a convex lens 412, wherein the concave lens 411 is arranged between the convex lens 412 and the LED light source module 100; the lens driving unit 420 includes a servo motor 421 connected to the control module, a concave lens fixture 422 and a convex lens fixture 423, wherein one end of the concave lens fixture 422 is connected to the first output end of the servo motor 421, and the other end is fixedly connected to the concave lens 411; one end of the convex lens fixture 423 is connected to the second output end of the servo motor 421, and the other end is fixedly connected to the convex lens 412. Specifically, the lens module 410 also includes a plane mirror arranged downstream of the convex lens.

[0047] In one embodiment, the LED light source module 100 includes a main lighting unit 110 and an auxiliary lighting unit 120. The main lighting unit 110 includes a plurality of white LEDs for working according to a first lighting instruction of the control module 500. The first lighting instruction includes the number of working white LEDs in the main lighting unit 110.

[0048] The auxiliary lighting unit 120 includes a plurality of red LEDs, green LEDs and blue LEDs, and is used to work according to the second lighting instruction of the control module 500. The second lighting instruction includes the color and quantity of the LEDs in the auxiliary lighting unit 120 to work.

[0049] In one embodiment, a power supply module 600 is further included to provide working power to the LED light source module 100 , the microwave detection module 200 , the infrared detection module 300 , the lens moving module 400 and the control module 500 .

[0050] In one embodiment, the LED light source module includes a PCB board and a plurality of LED light emitting chips arranged on the PCB board at fixed intervals, such as Figure 5 The PCB board includes a metal substrate layer 801, a polypropylene film layer 802, a first copper foil layer 803, a FR-4 material layer 804, and a second copper foil layer 805 which are sequentially attached from bottom to top. The FR-4 layer 804 is provided with a via hole 810 (through hole or via hole), and the surface of the second copper foil layer 805 is coated with white solder resist 806. Specifically, the LED light-emitting chip is soldered to the PCB board by solder paste and SMT process.

[0051] Specifically, Figure 6-7 The bottom plate A, the LED light source module 100 and the lens moving module 400 can be arranged in a circular pattern or a rectangular array pattern, which can be selected according to actual needs.

[0052] The present application also discloses a lighting control method, which uses the above-mentioned intelligent directional illumination module, such as Figure 8-9 ,include:

[0053] S1. Real-time detection of the distance between the LED light source module and the illuminated object and the outline of the illuminated object.

[0054] S2. Compare the received distance data and contour data with the preset target parameters, and control the lens moving module to move forward and backward according to the comparison result until the collected distance data and contour data meet the preset target parameters.

[0055] Specifically, step S2 includes:

[0056] A planar image data matrix of the illuminated object is generated based on the received distance data and contour data.

[0057] The plane image data matrix of the illuminated object is compared with the target plane image data matrix to obtain a difference value between the two. Specifically, a positive number in the difference value may represent a convex contour of the illuminated object, and a negative number may represent a concave contour of the illuminated object.

[0058] According to the difference value, a first lighting instruction is sent to the LED light source module, and a lens movement instruction is sent to the lens movement module, wherein the first lighting instruction includes the working number of white LEDs in the main lighting unit, and the lens movement instruction includes the movement information of the lens module. The main lighting unit lights up 80%, 90% or 100% of the white LEDs according to the first lighting instruction, and the working number of white LEDs can be set according to actual needs. According to the lens movement instruction, the lens module drives the convex lens fixture to move the convex lens back and forth and / or drives the concave lens fixture to move the concave lens back and forth, adjusts the distance between the convex lens and the concave lens, changes the focal length, and thus changes the angle of the light beam.

[0059] The first lighting instruction can be sent to the LED light source module and the lens movement instruction can be sent to the lens movement module respectively, or the first lighting instruction can be sent to the LED light source module and the lens movement instruction can be sent to the lens movement module at the same time, so as to change only the light intensity emitted by the main lighting unit, or only change the angle of the light beam emitted by the main lighting unit, or change the light intensity emitted by the main lighting unit and change the angle of the light beam emitted by the main lighting unit at the same time.

[0060] Specifically, step S2 also includes:

[0061] A second lighting instruction is sent to the LED light source module according to the difference value, and the second lighting instruction includes the color and quantity of the LEDs in the auxiliary lighting unit. The auxiliary lighting unit lights up the red LED, the green LED and / or the blue LED according to the second lighting instruction. The second lighting instruction can be sent to the LED light source module and the lens movement instruction can be sent to the lens movement module separately, or the second lighting instruction can be sent to the LED light source module and the lens movement instruction can be sent to the lens movement module at the same time, so as to change only the color of the LED emitted by the auxiliary lighting unit, or only change the angle of the light beam emitted by the auxiliary lighting unit, or change the color of the LED emitted by the auxiliary lighting unit and change the angle of the light beam emitted by the auxiliary lighting unit at the same time.

[0062] The present application provides an intelligent directional illumination module and a lighting control method based on the intelligent directional illumination module, which adopts a dual detection scheme of a microwave detection module and an infrared detection module to detect the illuminated object, and feeds back the distance between the LED light source module and the illuminated object and the outline of the illuminated object to the control module. The control module controls the operation of the main lighting unit, the auxiliary lighting unit and the lens moving module according to the distance data and the outline data, so as to realize the brightness compensation and color compensation of different and local colors, details and features of the illuminated object; when multiple LEDs of different colors emit light alone or in cascade, the color, brightness and contrast value of the surface of the illuminated object with the surrounding environment are improved, and the detailed features on the illuminated object and the illuminated object itself are highlighted. At the same time, the white balance of the illuminated object and its illuminated surface is reduced, and overexposure is reduced, so that the local detailed features of the illuminated object are truly presented when local lighting or key lighting is performed, and precise lighting is realized, and the lighting effect and lighting quality are improved, and the comfort of visual effects is improved.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the technical solution of the present invention.

Claims

1. An intelligent directional irradiation module, characterized in that: It includes a bottom plate, on which are arranged a plurality of LED light source modules and: A microwave detection module, used to detect the distance between the LED light source module and the illuminated object; Infrared detection module, used to detect the outline of the illuminated object; A lens moving module, arranged in the light emitting direction of the LED light source module, and used for changing the size of the light beam of the LED light source module; The control module is respectively connected to the LED light source module, the microwave detection module, the infrared detection module and the lens moving module, obtains the distance between the LED light source module and the illuminated object and the outline of the illuminated object, compares the received distance data and outline data with the preset target parameters, and controls the operation of the lens moving module according to the comparison result.

2. The intelligent directional illumination module according to claim 1, characterized in that: The lens moving module includes a lens module and a lens driving unit, the lens module includes a concave lens and a convex lens, and the concave lens is arranged between the convex lens and the LED light source module; The lens driving unit comprises a servo motor connected to the control module, a concave lens fixture and a convex lens fixture, wherein one end of the concave lens fixture is connected to the first output end of the servo motor, and the other end is fixedly connected to the concave lens; One end of the convex lens fixture is connected to the second output end of the servo motor, and the other end is fixedly connected to a convex lens.

3. The intelligent directional illumination module according to claim 1, characterized in that: The LED light source module includes a main lighting unit and an auxiliary lighting unit. The main lighting unit includes a plurality of white LEDs, which are used to work according to the first lighting instruction of the control module. The auxiliary lighting unit includes a plurality of red LEDs, green LEDs and blue LEDs, and is used to work according to the second lighting instruction of the control module.

4. The intelligent directional illumination module according to claim 1, characterized in that: It also includes a power supply module to provide working power for the LED light source module, microwave detection module, infrared detection module, lens moving module and control module.

5. The intelligent directional illumination module according to claim 1, characterized in that: The LED light source module includes a PCB board and a plurality of LED light emitting chips arranged on the PCB board at fixed intervals. The PCB board includes a metal substrate layer, a polypropylene film layer, a first copper foil layer, a FR-4 material layer and a second copper foil layer which are sequentially laminated from bottom to top. The FR-4 layer is provided with via holes, and the surface of the second copper foil layer is coated with white solder resist.

6. A lighting control method, using the intelligent directional illumination module according to any one of claims 1 to 5, characterized in that: include: Real-time detection of the distance between the LED light source module and the illuminated object and the outline of the illuminated object; The received distance data and contour data are compared with the preset target parameters, and the lens moving module is controlled to move forward and backward according to the comparison result until the collected distance data and contour data meet the preset target parameters.

7. The lighting control method according to claim 6, characterized in that: The method of comparing the received distance data and profile data with preset target parameters and controlling the lens moving module to move forward and backward according to the comparison result includes: generating a planar image data matrix of the illuminated object based on the received distance data and contour data; Comparing the plane image data matrix of the irradiated object with the target plane image data matrix to obtain a difference value between the two; A first lighting instruction is sent to the LED light source module and a lens movement instruction is sent to the lens movement module according to the difference value, wherein the first lighting instruction includes the lighting brightness information of the main lighting unit, and the lens movement instruction includes the movement information of the lens module.

8. The lighting control method according to claim 7, characterized in that: Also includes: A second lighting instruction is sent to the LED light source module according to the difference value, where the second lighting instruction includes a lighting color type of the auxiliary lighting unit.

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