Lighting device control method, lighting device and lighting system

Abstract

The invention provides a lighting device control method, a lighting device and a lighting system.The lighting device comprises at least one light source assembly, the light source assembly comprises a plurality of light-emitting units, and each light-emitting unit has an independent control address. The lighting device control method comprises the following steps: acquiring a target image, wherein the target image has a plurality of pixel positions; establishing a position mapping relationship between the control address of each light-emitting unit in the light source assembly and the pixel position of the target image; pixel information corresponding to the pixel position is extracted based on the target image, and the pixel information and the pixel position are sent to the lighting device; and adjusting the color of the light emitted by the lighting device based on the pixel information and the pixel position. According to the lighting device, the pixel information of the target image can be obtained, richer and more complex scenes can be presented according to the pixel information, and the adaptability of the lighting device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular, to a control method for a lighting device, a lighting device, and a lighting system. Background Art

[0002] With the popularization of intelligent lighting, people's personalized requirements for the brightness and color of lighting products are becoming more and more diverse. The intelligence of lighting products is also becoming more and more important, and the requirements for technology are getting higher and higher.

[0003] At present, for intelligent lighting products on the market, most of the lighting effects are still limited to the adjustment of brightness, color temperature, and fixed colors. The overall lighting effects presented are still relatively monotonous and cannot meet the lighting requirements in complex scenarios.

[0004] In some solutions, display devices, such as liquid crystal displays and oled screens, are used to display complex scene effects. However, these devices are restricted by factors such as shape and size, and have great limitations in installation. At the same time, the cost is also relatively high.

[0005] In view of this, it is necessary to provide a control method for a lighting device and a lighting device to meet the requirements of presenting rich and complex scenes. Summary of the Invention

[0006] The purpose of the present invention is to provide a control method for a lighting device that can present rich and complex scenes.

[0007] To achieve the above purpose, the present invention provides a control method for a lighting device. The lighting device includes at least one light source assembly, and the light source assembly includes a plurality of light-emitting units. Each light-emitting unit has an independent control address. The control method for the lighting device includes:

[0008] Obtaining a target image, where the target image has a number of pixel positions;

[0009] Establishing a position mapping relationship between the control address of each light-emitting unit in the light source assembly and the pixel position of the target image;

[0010] Extracting pixel information corresponding to the pixel position based on the target image, and sending the pixel information and the pixel position to the lighting device;

[0011] Adjusting the color of the light emitted by the lighting device based on the pixel information and the pixel position.

[0012] Optionally, the method for adjusting the color of the light emitted by the lighting device based on the pixel information further includes: based on the position mapping relationship, each of the light-emitting units adjusts the color of the light it emits according to the pixel information extracted from its corresponding pixel position.

[0013] Optionally, the pixel information includes color coordinate information and brightness information.

[0014] Optionally, the method for sending the pixel information and the pixel position to the lighting device is: packing the color coordinate information, the brightness information, and the pixel position together and sending them to the lighting device.

[0015] Optionally, after the extracted pixel information is converted, it is sent to the lighting device. The process of pixel information conversion includes:

[0016] Converting the pixel information corresponding to each control address extracted from the sRGB color space to the XYZ color space;

[0017] Then converting the pixel information from the XYZ color space to the Yxy color space;

[0018] Wherein, the x and y values in the Yxy color space are used as the converted color coordinate information, and the Y value in the Yxy color space is used as the converted brightness information.

[0019] Optionally, the lighting device saves the received pixel information to a scene number. Different scene numbers correspond to different target images. By calling different scene numbers, the lighting device displays the style of the target image corresponding to the scene number.

[0020] Optionally, the steps for remotely controlling the lighting device to display the target image through the APP include:

[0021] Selecting a target image through the APP;

[0022] Sending an instruction to call the target image to the cloud through the APP;

[0023] The cloud sends an instruction to call the scene number corresponding to the target image to the gateway;

[0024] Each of the gateways broadcasts a call to the scene number to the lighting devices connected to it;

[0025] The lighting device responds to the broadcast call of the gateway and displays the style of the target image.

[0026] Optionally, the cloud sending an instruction to the gateway to call the scene number corresponding to the target image includes:

[0027] The cloud filters the lighting device adapted to the target image and sends an instruction to call the target image to the gateway that controls the adapted lighting device.

[0028] Optionally, the step of controlling the lighting device to display the target image through the panel includes:

[0029] Selecting a target image through the panel;

[0030] Sending an instruction to call the scene number corresponding to the target image to the gateway through the panel;

[0031] The gateway sends an instruction to call the scene number to other gateways within the local area network;

[0032] Each gateway makes a broadcast call to the lighting devices connected thereto;

[0033] The lighting device responds to the broadcast call of the gateway and displays the style of the target image.

[0034] Optionally, when the light source assembly is circular or square, the target image is square; when the light source assembly is rectangular, the target image is rectangular.

[0035] Another object of the present invention is to provide a lighting device applying the above lighting device control method.

[0036] To achieve the above object, the present invention provides a lighting device applying the above lighting device control method.

[0037] Another object of the present invention is to provide a lighting system including the above lighting device.

[0038] To achieve the above object, the present invention provides a lighting system, including:

[0039] The above lighting device;

[0040] A control terminal configured to allow a user to select a target image and send a call instruction to the lighting device, the control terminal including an APP and / or a panel;

[0041] A communication module through which the control terminal performs data transmission with the lighting device, the communication module including a cloud and a gateway.

[0042] The beneficial effects of the present invention are as follows: Compared with the prior art, in the lighting device of the present invention, by obtaining a target image, establishing a mapping relationship between the control addresses of the respective light-emitting units in the light source assembly and the pixel positions on the target image, then extracting the pixel information of each pixel position on the target image, and sending the pixel information and the pixel positions together to the lighting device, each light-emitting unit of the lighting device can emit light of the corresponding color according to the pixel information extracted from the corresponding pixel position, and the overall lighting device can display the style of the selected target image. This lighting device can display various styles of target images, improving the lighting effect of the lighting device and having stronger adaptability. Description of the Drawings

[0043] Figure 1 It is a schematic flowchart of the control method for the lighting device of the present invention.

[0044] Figure 2 It is a schematic plan view of the light source assembly in the first embodiment.

[0045] Figure 3 It is a schematic diagram of the target image and the light source assembly in the second embodiment. Figure 3 (a) It is a schematic diagram of a rectangular target image. Figure 3 (b) It is a schematic diagram of a light source assembly with a horizontally arranged light-emitting baseband. Figure 3 (c) It is a schematic diagram of a light source assembly with a vertically arranged light-emitting baseband.

[0046] Figure 4 It is a structural diagram of the scenario message parameters configured in the control method for the lighting device of the present invention.

[0047] Figure 5 It is a schematic flowchart of controlling the lighting device through an APP in the control method for the lighting device of the present invention.

[0048] Figure 6 It is a schematic flowchart of controlling the lighting device through a panel in the control method for the lighting device of the present invention.

[0049] Description of the Reference Numerals:

[0050] 100 - Light source assembly;

[0051] 110 - Light-emitting unit, 120 - Light-emitting baseband, 130 - First part, 140 - Second part. Detailed Embodiments

[0052] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] Here, it should be noted that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less related to the present invention are omitted.

[0054] In addition, it should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0055] The present invention provides an illumination system, which will be described below in conjunction with specific embodiments.

[0056] The illumination system includes a control end and a plurality of lighting devices. The lighting device includes at least one light source assembly, and the light source assembly includes a plurality of light emitting units. Each light emitting unit has an independent control address and can be controlled by the following lighting device control method:

[0057] Obtain a target image, and the target image has a number of pixel positions;

[0058] Establish a position mapping relationship between the control address of each light emitting unit in the light source assembly and the pixel position of the target image;

[0059] Extract pixel information corresponding to the pixel position based on the target image, and send the pixel information and the pixel position to the lighting device;

[0060] Adjust the color of the light emitted by the lighting device based on the pixel information and the pixel position.

[0061] As Figure 1 shown, in the lighting device control method of the present invention, first obtain a target image. In the light source assembly 100, there are a plurality of light emitting units 110, and each light emitting unit 110 has a control address. Establish a position mapping relationship between the pixel position of the target image and the control address of the light emitting unit; analyze and extract the pixel information corresponding to each pixel position on the target image, and pack and send the pixel information and the pixel position to the lighting device. The lighting device controls each light emitting unit to emit the light color corresponding to the pixel information based on the pixel information corresponding to the pixel position of each light emitting unit, and the overall lighting device displays the style corresponding to the target image.

[0062] In this embodiment, the pixel information specifically includes color coordinate information. The control end sends the color coordinate information of each control address to the lighting device, and the lighting device controls the light emitting units of each control address to display the corresponding color according to the color coordinates, and the brightness value is set between 1% and 100% as required.

[0063] In some other embodiments, the pixel information further includes brightness information. As Figure 4 shown, the control terminal packs the color coordinate information and the brightness information together and sends them to the lighting device. Figure 4 In it, Bright is the brightness information, and Cx and Cy are the color coordinate information. The lighting device uses the received brightness information as a reference value to set the brightness displayed by the lighting device.

[0064] The light source assembly 100 includes a plurality of light-emitting basebands 120. Each light-emitting baseband 120 includes a plurality of light-emitting units 110 with the same quantity. The arrangement modes of the light-emitting basebands 120 include horizontal arrangement, vertical arrangement, circular arrangement and other modes.

[0065] In some embodiments, a light source model corresponding to the light source assembly 100 will be established on the interface of the control terminal. The light source model has virtual light-emitting basebands 120. To prevent errors, when the user finds that there is an error between the arrangement mode of the virtual light-emitting basebands 120 in the light source model and the arrangement mode in the light source assembly 100, the virtual light-emitting basebands 120 can also be manually dragged to adjust the position, so as to improve the stability of the lighting system.

[0066] The control terminal packs the pixel information of each converted control address, including color coordinates, brightness information and pixel positions together as scene lighting parameters, and sends the scene lighting parameters to the corresponding lighting device. The lighting device saves the received scene lighting parameters to a scene number. Different scene numbers in the lighting device correspond to different target images. When it is necessary to control the lighting device to display different target images, only different scene numbers need to be called through the control terminal, and the whole control process is more convenient and fast.

[0067] As Figure 5 shown, in some embodiments, the control terminal can be an APP on various mobile devices. Users can remotely control the lighting device for adjustment through the APP. The specific steps are as follows:

[0068] Select a target image through the APP;

[0069] The APP sends an instruction to call the target image to the cloud;

[0070] The cloud filters the lighting devices adapted to the target image and sends an instruction to call the scene number corresponding to the target image to the gateways connected to these lighting devices;

[0071] Each gateway broadcasts the call of the scene number to the lighting devices connected to it;

[0072] The lighting device adapted to the target image responds to the broadcast call of the gateway and displays the style of the target image.

[0073] As Figure 6 shown, in some embodiments, the control end can be a panel in the lighting device. The steps of controlling the lighting device to make adjustments through the panel specifically include:

[0074] Select the target image through the panel;

[0075] The panel sends an instruction to the gateway to call the scene number corresponding to the target image;

[0076] The gateway parses the instruction through the engine and sends an instruction to call the scene number to other gateways within the local area network;

[0077] Each gateway makes a broadcast call to the lighting devices connected to it;

[0078] The lighting device responds to the broadcast call of the gateway and displays the style of the target image.

[0079] In some embodiments, the transmission between the gateway and the lighting device is carried out through BLE Bluetooth devices.

[0080] The following are specific embodiments of establishing a mapping relationship with the target image when the light-emitting units 110 in the light source assembly 100 are arranged in different ways.

[0081] Embodiment 1

[0082] As Figure 2 shown, in this embodiment, the light-emitting units 110 in the light source assembly 100 are arranged in a ring. Specifically, the light source assembly 100 includes a light source substrate and a plurality of light-emitting basebands 120 each containing the same number of light-emitting units 110. The light source substrate is circular and includes a circular first part 130 at the center of the light source substrate and a second part 140 surrounding the first part 130. The radius of the light source substrate is R1, the radius of the first part 130 is R2, and the plurality of light-emitting basebands 120 are all distributed on the second part 140. The number of light-emitting basebands 120 is M, and the average interval angle of each light-emitting baseband 120 is 360 / M. It is assumed that the light-emitting baseband 120 at the 3 o'clock direction is numbered 1; the light-emitting basebands 120 are numbered 1 to M counterclockwise; among them, the angle value of the light-emitting baseband 120 numbered Z is (360 / M)*(Z - 1); the length L (meters) of the light-emitting baseband 120 = R1 - R2; assuming there are e light-emitting units 110 per meter and each light-emitting unit 110 is a control address, then the total number of control addresses on a single light-emitting baseband 120 is (R1 - R2)*e.

[0083] In this embodiment, the target image for which the mapping relationship needs to be established is square, and the side length pixel of the target image is S.

[0084] On the light source substrate, assume that the pixel value of all the light-emitting units 110 on the light source component 100 is r1 = R1 * e, and assume that the pixel value of all the control addresses on the second part 140 is r2 = R2 * e. The proportionality coefficient N of the combined virtual pixel points and actual picture pixel points on the light-emitting baseband 120 is N = S / (R1 * 2 * e). The specific address t of the light-emitting unit 110 on the light-emitting baseband 120z is sought. (x0, y0) is the center coordinate value after the light-emitting baseband 120 is virtualized to the light-emitting unit 110, and this center coordinate value is (0, 0). The horizontal angle a between the currently sought light-emitting baseband 120 with number z and the center is a = (360 / M) * (Z - 1). Then the control addresses x1, y1 of the light-emitting unit 110 at position t on the current light-emitting baseband 120 are:

[0085] x1 = x0 + (r2 + t - 1) * cos(a);

[0086] y1 = y0 + (r2 + t - 1) * sin(a);

[0087] Then the pixel position of the light-emitting unit 110 at address t on the light-emitting baseband 120 with number z mapped to the target image is:

[0088] X1 = [x0 + (R2 * e + t - 1) * cos((360 / M) * (Z - 1))] * S / (R1 * 2e);

[0089] Y1 = [y0 + (R2 * e + t - 1) * sin((360 / M) * (Z - 1))] * S / (R1 * 2e);

[0090] Using the symmetry principle, only need to calculate the pixel positions corresponding to the light-emitting units 110 in 1 / 4 or 1 / 8 of the first part 130 on the target image, then the pixel positions corresponding to all the light-emitting units 110 on the target image can be obtained. According to the pixel positions, extract the pixel information at these pixel positions on the target image, and convert the pixel information from the sRGB color space to the XYZ color space, and then convert the pixel information from the XYZ color space to the Yxy color space. Among them, x and y in the Yxy color space are used as the color coordinates Cx, Cy of the corresponding light-emitting unit 110 (x1, y1) on the light-emitting baseband 120.

[0091] The Y value in the Yxy color space is the color brightness, which is an absolute value, not the dimming brightness ratio. Generally, the Y value cannot be directly used as the brightness of the light-emitting baseband 120. Here, the brightness output of 1% - 100% can be set according to actual needs in the lighting device. In some embodiments, the Y value is also sent to the lighting device, and the lighting device can use the brightness Y value as a reference.

[0092] Example 2

[0093] In this embodiment, as Figure 3 (a) shows, when the selected target image is rectangular, the light-emitting units 110 in the light source assembly 100 are arranged in a rectangular pattern, and multiple light-emitting basebands 120 each containing the same number of light-emitting units 110 are arranged horizontally or vertically. As Figure 3 (b) shows, when the light-emitting basebands 120 are arranged horizontally, there are a total of K rows of light-emitting basebands 120. The light-emitting basebands 120 are numbered. The number of the first row of light-emitting basebands 120 is 1, the number of the second row of light-emitting basebands 120 is 2, and so on. The number of the Kth row of waiting is K. Similarly, as Figure 3 (c) shows, when the light-emitting basebands 120 are arranged vertically, there are a total of K columns of light-emitting basebands 120. The light-emitting basebands 120 are numbered. The number of the first column of light-emitting basebands 120 is 1, the number of the second column of light-emitting basebands 120 is 2, and so on. The number of the Kth column of waiting is K. The length of each light-emitting baseband 120 is L meters, and there are e light-emitting units 110 per meter on the light-emitting baseband 120. Each light-emitting unit 110 has a control address. Then, there are L*e light-emitting units 110 on each light-emitting baseband 120, and there are L*e*K light-emitting units 110 in the entire light source assembly 100.

[0094] The length pixel of the target image is S1, and the width pixel is S2. The aspect ratio of the light source assembly 100 is the same as that of the target image. The length of each light-emitting baseband 120 is L meters, and there are e light-emitting units 110 per meter on the light-emitting baseband 120. Then, there are L*e light-emitting units 110 on each light-emitting baseband 120, and there are L*e*K light-emitting units 110 in the entire light source assembly 100. Then, the control addresses x1, y1 of the light-emitting unit 110 at position t on the current light-emitting baseband 120, and the target image is also proportionally divided into L*e*K pixel positions. The control addresses of the respective light-emitting units 110 on the light-emitting baseband 120 correspond one-to-one with the respective pixel positions on the target image. The pixel information at each pixel position on the target image is extracted, and the pixel information is converted from the sRGB color space to the XYZ color space, and then the pixel information is converted from the XYZ color space to the Yxy color space. Among them, x and y in the Yxy color space are used as the color coordinates Cx, Cy of the respective light-emitting units 110 on the light-emitting baseband 120.

[0095] In some embodiments, the control terminal is connected to the lighting device through the cloud and the gateway for data transmission. When transmitting through the gateway, since the amount of data of the pixel information is relatively large and the data packet often exceeds 1k, the pixel positions corresponding to each control address and the pixel information extracted at the pixel positions are transmitted to the lighting device from the control terminal through the cloud and the gateway in sequence by means of sub-packet grouping. In some other embodiments, the control terminal can also directly transmit data to the lighting device through Bluetooth. The present invention does not limit the data transmission method.

[0096] In some embodiments, the lighting system includes a plurality of lighting devices. The control terminal is connected to multiple lighting devices through the cloud. After the mapping between the light source assembly 100 and the target image is completed on the control terminal, the pixel information and the pixel positions are used as the scene lighting parameters of the target image and sent to all the lighting devices adapted to the target image. These lighting devices save the scene lighting parameters in a scene number. When calling later, the control terminal selects the target image, filters the lighting devices that can apply the target image in the cloud, and sends the call instruction to these lighting devices. The call instruction includes the scene number corresponding to the target image. After receiving the call instruction, the lighting device displays the style of the icon image corresponding to the scene number. Through this lighting system, the control of multiple lighting devices in the system can be realized conveniently and quickly.

[0097] The control terminal of the lighting system includes the APP on various devices and the panel in the lighting device, and calls each scene number through the APP or the panel.

[0098] As Figure 5 shown, it is a schematic flow chart of calling the lighting device through the APP. The user selects the target image at the APP end. After the cloud receives the instruction, it filters the gateways connected to the lighting devices that support the target image, and sends the instruction to these gateways. These gateways then broadcast the call to all the lighting devices connected to them. The lighting devices that support the target image respond to the instruction, and the lighting device distributes the scene lighting parameters in the scene number to each light-emitting unit so that the lighting device displays the corresponding style of the target image.

[0099] As Figure 6 shown, it is a schematic flow chart of calling through the panel in the lighting device. After the panel selects the target image, the panel sends an instruction to the gateway connected to the lighting device through Bluetooth. After receiving the instruction, the gateway also sends the instruction to other gateways in the local area network. Each gateway analyzes the instruction through the automation engine and then broadcasts the call to the lighting device for the scene number corresponding to the target image. The lighting device responds to the instruction and displays the corresponding style of the target image.

[0100] In summary, for the lighting device control method of the present invention, by establishing a mapping relationship between the control addresses of the respective light-emitting units 110 in the light source assembly 100 and the pixel positions in the target image, extracting the pixel information corresponding to each pixel position in the target image, and then sending the pixel information to the lighting device, the lighting device can control each light-emitting unit 110 to display the corresponding color, so that the lighting device as a whole displays the corresponding style of the target image. The pixel information of multiple target images is saved in multiple scene numbers in the lighting device and can be quickly called later through the APP or the panel in the lighting device. The lighting system includes multiple lighting devices, and different lighting devices in the lighting system can be controlled to display different target images. The lighting system has stronger playability, and the display effect of the lighting device is richer. It can be applied to various occasions such as exhibition hall lighting layout, intelligent lighting display of home lighting equipment, and light shows for celebrations, meeting higher lighting requirements.

[0101] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for controlling a lighting device, characterized in that, The lighting device includes at least one light source assembly, the light source assembly includes a plurality of light emitting units, each of the light emitting units has an independent control address, and the method for controlling the lighting device includes: Obtain a target image, the target image having a number of pixel positions; Establish a position mapping relationship between the control address of each light emitting unit in the light source assembly and the pixel positions of the target image; Extract pixel information corresponding to the pixel positions based on the target image, and send the pixel information and the pixel positions to the lighting device; Adjust the color of the light emitted by the lighting device based on the pixel information and the pixel positions.

2. The lighting device control method according to claim 1, wherein The method for adjusting the color of the light emitted by the lighting device based on the pixel information further includes: Based on the position mapping relationship, each of the light emitting units adjusts the color of the light it emits according to the pixel information extracted from its corresponding pixel position.

3. The lighting device control method according to claim 1, wherein, The pixel information includes color coordinate information and brightness information.

4. The lighting device control method according to claim 3, wherein, The method for sending the pixel information and the pixel positions to the lighting device is: packing the color coordinate information, the brightness information and the pixel positions together and sending them to the lighting device.

5. The lighting device control method according to claim 3, characterized in that, The extracted pixel information is converted and then sent to the lighting device, and the process of pixel information conversion includes: Converting the pixel information corresponding to each control address extracted from the sRGB color space to the XYZ color space; Then converting the pixel information from the XYZ color space to the Yxy color space; Wherein, the x and y values in the Yxy color space are used as the converted color coordinate information, and the Y value in the Yxy color space is used as the converted brightness information.

6. The lighting device control method according to claim 1, characterized in that, The lighting device saves the received pixel information to a scene number, different scene numbers correspond to different target images, and by calling different scene numbers, the lighting device displays the style of the target image corresponding to the scene number.

7. The lighting device control method according to claim 6, characterized in that, The steps for remotely controlling the lighting device to display the target image through an APP include: Select a target image through the APP; Send an instruction to call the target image to the cloud through the APP; The cloud sends an instruction to call the scene number corresponding to the target image to the gateway; Each of the gateways broadcasts a call to the scene number to the lighting devices connected thereto; The lighting device responds to the broadcast call of the gateway and displays the style of the target image.

8. The lighting device control method according to claim 7, wherein The cloud sends an instruction to call the scene number corresponding to the target image to the gateway, including: The cloud filters the lighting devices adapted to the target image, and sends an instruction to call the target image to the gateway controlling the adapted lighting devices.

9. The lighting device control method according to claim 6, wherein, The steps for controlling the lighting device to display the target image through a panel include: Select a target image through the panel; Send an instruction to call the scene number corresponding to the target image to the gateway through the panel; The gateway sends an instruction to call the scene number to other gateways within the local area network; Each of the gateways broadcasts a call to the lighting devices connected thereto; The lighting device responds to the broadcast call of the gateway and displays the style of the target image.

10. The lighting device control method according to claim 1, wherein, When the light source assembly is circular or square, the target image is square; when the light source assembly is rectangular, the target image is rectangular.

11. A lighting device, characterized in that, Apply the lighting device control method according to any one of claims 1 to 10.

12. A lighting system, characterized in that, Comprising: A plurality of lighting devices according to claim 11; A control terminal configured to allow a user to select a target image and send a call instruction to the lighting device, the control terminal including an APP and / or a panel; A communication module through which the control terminal transmits data with the lighting device, the communication module including a cloud and a gateway.

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