Lamp color tuning method, lamp, and lighting system

Abstract

The present application provides a lamp color tuning method, a lamp, and a lighting system. The lamp color tuning method specifically comprises: establishing a coordinate mapping relationship between color coordinates of a lamp and polar coordinates on a hue circle; obtaining initial polar coordinates on the basis of initial color coordinates and the coordinate mapping relationship; obtaining an offset angle; forming target polar coordinates on the basis of the initial polar coordinates and the offset angle; on the basis of the target polar coordinates and the coordinate mapping relationship, obtaining target color coordinates corresponding to the target polar coordinates; and on the basis of the target color coordinates, tuning the color of light emitted by the lamp. By means of the lamp color tuning method, the color of light of a lamp can be rapidly changed on the basis of the value of an obtained offset angle, thereby exhibiting different light effects.

Description

Lamp color adjustment method, lamp and lighting system

[0001] This application claims priority to Chinese patent applications with application date of December 31, 2023, application number 202311869230.7, and invention name “Lamp color adjustment method, lamp and lighting system”. The entire contents of these patent applications are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of lighting technology, and in particular to a lamp color adjustment method, a lamp, and a lighting system. Background Art

[0003] With the popularization of smart lighting, people's personalized demands for the brightness and color of lighting products are becoming more and more diversified. The intelligence of lighting products is becoming more and more important, and the requirements for technology are becoming higher and higher.

[0004] Currently, most intelligent lighting products on the market offer limited lighting effects, limited to adjusting brightness and color temperature. These adjustments lack color variation, resulting in a relatively monotonous overall lighting effect. However, diverse color variations are required in a variety of applications, including exhibition hall lighting arrangements, smart home lighting displays, and celebration light shows.

[0005] In view of this, it is indeed necessary to provide a lamp color adjustment method, lamp and lighting system to meet the demand for light color changes in real scenes. Summary of the Invention

[0006] The purpose of this application is to provide a lamp color adjustment method that can adjust the light color of the lamp according to the offset angle.

[0007] To achieve the above objectives, the present application provides a lamp color adjustment method, which is applied to a lighting system. The lamp color adjustment method includes:

[0008] Establish a coordinate mapping relationship between the color coordinates of the lamp and the polar coordinates on the hue circle;

[0009] Obtaining initial polar coordinates according to the initial color coordinates and the coordinate mapping relationship;

[0010] Get the offset angle;

[0011] forming target polar coordinates based on the initial polar coordinates and the offset angle;

[0012] According to the target polar coordinates and the coordinate mapping relationship, obtaining target color coordinates corresponding to the target polar coordinates;

[0013] The color of the light emitted by the lamp is adjusted based on the target color coordinates.

[0014] Optionally, a mapping relationship between the color coordinates under the control address and the polar coordinates on the hue circle is established based on the control address of the lamp, and the hue shift process of the lamp is controlled based on the control address, wherein the hue shift process is defined as from obtaining the offset angle to obtaining the target color coordinates.

[0015] Optionally, a mapping relationship between the color coordinates under the control address and the polar coordinates on the hue circle is established based on the control address of the lamp, and the hue shift process of the lamp is controlled based on the control address, wherein the hue shift process is defined as from obtaining the offset angle to obtaining the target color coordinates.

[0016] Optionally, the lamp has a single control address, and the lamp color adjustment method is:

[0017] Establishing a mapping relationship between the color coordinates of the lamp under the control address and the polar coordinates on the color circle;

[0018] The process of controlling the hue shift of the lamp based on the control address includes:

[0019] Obtaining an offset angle of the lamp under the control address, and adjusting the initial polar coordinates on the hue circle based on the offset angle to obtain the target polar coordinates after the offset;

[0020] Reversely mapping the target polar coordinates back to the color coordinate system of the lamp to obtain the target color coordinates of the lamp under the control address;

[0021] The color of the lamp is adjusted based on the target color coordinates.

[0022] Optionally, the lamp has multiple control addresses, and the lamp color adjustment method is:

[0023] Establishing a mapping relationship between the color coordinates of each control address and the polar coordinates on the color circle;

[0024] Obtain target color coordinates under all control addresses, and any method for obtaining the target color coordinates includes:

[0025] Acquiring the offset angle under a single control address, and adjusting the initial polar coordinates on the hue circle based on the offset angle to obtain the offset target polar coordinates under the single address;

[0026] Reverse mapping the target polar coordinates back to the color coordinate system to obtain the target color coordinates under the control address;

[0027] The color of the light emitted by the lamp is adjusted based on the target color coordinates under all control addresses.

[0028] Optionally, the color shift process of each control address is independent of each other.

[0029] Optionally, the offset angle ranges from 0° to 360°.

[0030] Optionally, methods for obtaining the offset angle through the APP to control the lamp for color adjustment include:

[0031] Input the offset angle through the APP;

[0032] Sending information about the offset angle to the cloud via the APP;

[0033] Sending information about the offset angle to the gateway via the cloud;

[0034] Each gateway broadcasts the offset angle to the lamps connected thereto;

[0035] The lamp adjusts the color of the lamp according to the acquired offset angle.

[0036] Optionally, the method of obtaining the offset angle by a knob to control the lamp to adjust the color includes:

[0037] Rotate the knob on the lamp and use the rotation angle of the knob as the offset angle;

[0038] Sending the information of the offset angle to the gateway through the lamp;

[0039] Sending the information of the offset angle to other gateways in the local area network through the gateway;

[0040] Each gateway broadcasts the offset angle to the lamps connected thereto;

[0041] The lamp adjusts the color of the lamp according to the acquired offset angle.

[0042] Another object of the present application is to provide a lamp using the above-mentioned lamp color adjustment method.

[0043] To achieve the above objectives, the present application provides a lamp that applies the above lamp color adjustment method.

[0044] Another object of the present application is to provide a lighting system including the above-mentioned lamp.

[0045] To achieve the above objectives, the present application provides a lighting system, comprising:

[0046] the above-mentioned lamps;

[0047] A control terminal configured to input an offset angle, the control terminal comprising at least one of an APP, a knob, and a panel;

[0048] The lamp communicates with the control end via a communication module, and the communication module includes a cloud and a gateway.

[0049] The beneficial effect of the present application is that, compared with the prior art, the lamp color adjustment method of the present application establishes a mapping relationship between the lamp's color coordinates and the polar coordinates on the hue circle, adjusts the initial polar coordinates on the hue circle according to the obtained offset angle, and obtains the target polar coordinates. The target polar coordinates are then reverse-mapped to the color coordinate system to obtain the target color coordinates. The color of the light emitted by the lamp is then transformed to the color corresponding to the target color coordinates. This allows the color of the lamp's light to be quickly adjusted, and the lamp can display a wide variety of colors, greatly improving the lighting scenarios in which the lighting system can be applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG1 is a flow chart of the lamp color adjustment method of the present application.

[0051] FIG2 is a schematic diagram of the conversion between the color coordinates in the color coordinate system and the polar coordinates in the hue circle in the lamp color adjustment method of the present application.

[0052] FIG3 is a schematic diagram of a flow chart of light adjustment performed by a lighting system in a preferred embodiment of the present application.

[0053] FIG4 is a schematic diagram of a flow chart of light adjustment performed by a lighting system in another preferred embodiment of the present application. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of this application clearer, this application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] It should be noted here that in order to avoid obscuring the present application due to unnecessary details, only the structures and / or processing steps closely related to the scheme of the present application are shown in the accompanying drawings, while other details that are not closely related to the present application are omitted.

[0056] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0057] The present application provides a lighting system, which is described below with reference to specific embodiments.

[0058] The lighting system includes a control terminal and a lamp. An offset angle can be input through the control terminal. The control terminal and the lamp communicate via a communication module. The lamp is configured to illuminate and can receive and respond to the angle information sent by the control terminal. In other embodiments, the control terminal can also input other control information, such as brightness and color temperature, to adjust the brightness and color temperature of the lamp, although this application is not limited thereto.

[0059] As shown in FIG1 , the lighting system adjusts the light color displayed by the lamp through a lamp color adjustment method. The specific steps of the lamp color adjustment method are as follows:

[0060] Establish a coordinate mapping relationship between the color coordinates of the lamp and the polar coordinates on the hue circle;

[0061] Obtaining initial polar coordinates according to the initial color coordinates and the coordinate mapping relationship;

[0062] Get the offset angle;

[0063] forming target polar coordinates based on the initial polar coordinates and the offset angle;

[0064] According to the target polar coordinates and the coordinate mapping relationship, obtaining target color coordinates corresponding to the target polar coordinates;

[0065] The color of the light emitted by the lamp is adjusted based on the target color coordinates.

[0066] The lamp color adjustment method of the present application establishes a coordinate mapping relationship between the color coordinates in the color coordinate system and the polar coordinates on the hue circle. The lamp maps the initial color coordinates of the color of the light currently emitted by the lamp in the color coordinate system to the hue circle to obtain the initial polar coordinates on the hue circle. The offset angle is input to the control end of the lighting system, and the control end sends the input offset angle to the lamp. The lamp adjusts the initial polar coordinates on the hue circle based on the received offset angle, that is, obtains the target polar coordinates in the adjusted hue circle. The target polar coordinates are then reversely mapped to the color coordinate system to obtain the target color coordinates in the color coordinate system. Based on the target color coordinates, the color of the light emitted by the lamp is transformed from the color corresponding to the initial color coordinates to the color corresponding to the target color coordinates. This allows the color of the lamp's light to be quickly adjusted, and the lamp can display a variety of colors, greatly improving the lighting scenes that the lighting system can be applied to.

[0067] In the present application, the lamp color adjustment method is based on the control address of the lamp to establish a mapping relationship between the color coordinates under the control address and the polar coordinates on the hue circle, and the hue shift process of the lamp is controlled based on the control address, wherein the hue shift process is defined as starting from obtaining the offset angle to obtaining the target color coordinates.

[0068] In some embodiments, when a lamp has only one control address, a color adjustment method for the lamp includes:

[0069] Establish a mapping relationship between the color coordinates of the lamp under the control address and the polar coordinates on the color circle;

[0070] Get the hue offset rotation angle of the lamp under the control address, and rotate the polar coordinates on the hue circle based on the offset angle to obtain the target polar coordinates after the offset;

[0071] Reversely map the target polar coordinates back to the color coordinate system of the lamp to obtain the target color coordinates of the lamp under the control address;

[0072] In some embodiments, when a lamp includes multiple control addresses, a color adjustment method for the lamp includes:

[0073] Establish a mapping relationship between the color coordinates of each control address and the polar coordinates on the color circle;

[0074] Obtain target color coordinates under all control addresses, and any method for obtaining the target color coordinates includes:

[0075] Obtaining the offset angle under a single control address, and adjusting the polar coordinates on the hue circle based on the offset angle to obtain the offset target polar coordinates under the single address;

[0076] Reversely map the target polar coordinates back to the color coordinate system to obtain the target color coordinates under the control address;

[0077] Adjust the color of the luminaire based on the target color coordinates under all control addresses.

[0078] The conversion process between the color coordinates in the color coordinate system and the polar coordinates in the hue circle will be described in detail below with reference to FIG. 2 .

[0079] The color initially displayed by the lamp has initial color coordinates (x, y) in the color coordinate system. These initial color coordinates (x, y) are mapped to the hue circle, resulting in initial polar coordinates (r, θ). The offset angle sent by the control end is △θ. The lamp rotates the hue circle based on the received offset angle, resulting in target polar coordinates (r, θ + △θ). The target polar coordinates (r, θ + △θ) are then reverse-mapped to the color coordinate system, resulting in target color coordinates (x', y'). Based on the target color coordinates (x', y'), the lamp can display the color corresponding to the target color coordinates (x', y').

[0080] In some embodiments, the lamp includes multiple lamp beads, and each lamp bead in the lamp has an independent control address. According to the offset angle, each control address obtains its corresponding target color coordinates through the lamp color adjustment method. The color displayed by the lamp bead controlled by each control address is converted from the color corresponding to the polar coordinates before the hue wheel is rotated to the color corresponding to the target polar coordinates. That is, only an offset angle value needs to be input from the control end, and the colors of the lamp beads controlled by all control addresses in the lamp will change, resulting in an ever-changing color effect, giving people a richer visual experience.

[0081] The control end in the lighting system includes an APP, a knob or a button. The user can input the value of the offset angle in a variety of ways through the APP on the mobile device, or by rotating the knob of the lamp, and the angle of rotation of the knob is used as the offset angle. The offset angle can also be input through the button of the lamp. In some other embodiments, the offset angle can also be input in other ways, and this application does not limit this.

[0082] The input offset angle value is between 0 and 360 degrees, or between -180 and 180 degrees, and is set according to actual circumstances. This application does not impose any restrictions on this.

[0083] In some embodiments, the above APP, knobs or buttons can also be used to adjust the color temperature and brightness of the light of the lamp to further improve the controllability of the lighting system so that the lighting system can adapt to the needs of more scenarios.

[0084] The control end in the lighting system is connected to the lamp through a communication module. The communication module includes a Bluetooth module, a gateway or a cloud. It can be one of them or a combination of two or three of them. In some other embodiments, communication can also be carried out through other communication methods, which is not limited in this application.

[0085] In some embodiments, when the communication module is a Bluetooth module, the control end communicates with the lamp through the Bluetooth module, and the angle information input by the lamp is sent to the address of each control point in the lamp through the Bluetooth module. Using the Bluetooth module, the angle information input by the control end can be conveniently and quickly sent to the lamp, and the lamp can respond quickly.

[0086] In some embodiments, the lighting system includes several lamps, as shown in Figure 3. In this case, the communication module is a combination of the cloud and the gateway. The control end establishes communication with the cloud, and the cloud then establishes communication with several lamps through the gateway. The control end sends the offset angle data to the cloud. In order to save resources, the cloud will first screen the lamps that support the light adjustment function and send a call instruction to the gateway that controls these lamps. The gateway parses the offset angle through the automation engine and broadcasts it to all the lamps it controls. The broadcast message includes the offset angle. The lamps that support the light adjustment function in the gateway will respond and change their displayed color according to the received offset angle.

[0087] In this way, users can use the APP on their mobile devices or the WEB on their computers as the control terminal for remote control. They can more conveniently and quickly control several lamps in the lighting system to change their lighting color, color temperature, brightness and other information without being restricted by distance, making the lighting system more widely applicable.

[0088] In some embodiments, a lighting system includes several lamps, at least one of which has a knob, as shown in FIG4 . By rotating the knob on one of the lamps to adjust the offset angle, the lamp transmits the offset angle to a gateway with which it communicates. The gateway then transmits the offset angle to other gateways within the local area network. Each gateway transmits the offset angle to the lamps with which it communicates. Lamps that support light adjustment change the displayed color based on the offset angle. In other embodiments, the lamps have a control panel or button, and the offset angle can also be input through the control panel or button on the lamp. Like the knob, communication is also conducted through the gateway.

[0089] By using the physical knobs / cases on the lamps, you can uniformly control all lamps in the same local area network, and control the color changes of all lamps that support light adjustment functions in the same local area network. The response speed is fast, which enhances the operability and playability of the lighting system and brings users a richer user experience.

[0090] The lamp includes a control unit and a light-emitting module. The light-emitting module includes several light-emitting elements. The control unit receives an offset angle and calculates the color coordinates of the color currently displayed by each light-emitting element in the light-emitting module in the color coordinate system. The control unit converts the color coordinates into polar coordinates in the hue circle. Based on the offset angle, the hue is shifted on the hue circle to obtain the target polar coordinates. The target polar coordinates are then reverse-mapped back to the color coordinate system to obtain the target color coordinates. The control unit then controls each light-emitting element in the light-emitting module to display the color corresponding to the target color coordinates based on the target color coordinates. The control unit in the lamp can respond to the received offset angle extremely quickly, completing the above operations within one to two seconds. It can respond to user operations extremely quickly, giving users a good user experience and meeting the need for rapid changes in the color of the light from the light-emitting module in actual use.

[0091] In summary, the lamp color adjustment method of the present application maps the color coordinates of the currently displayed color in the lamp to the hue circle to obtain polar coordinates on the hue circle. By inputting an offset angle into the control terminal of the lighting system, the control terminal will send the offset angle to the lamp. The lamp rotates the hue circle according to the offset angle to obtain the target polar coordinates after the hue shift. The polar coordinates are then reversely mapped to the color coordinate system to obtain the target color coordinates. The color of the lamp light is switched to the color corresponding to the target color coordinates. This allows the color of the light displayed by the lamp to be quickly adjusted, creating an ever-changing light color effect, greatly improving the lighting scenarios that the lighting system can be applied to.

[0092] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A method for color adjustment of a lighting fixture, wherein, Including: Establishing a coordinate mapping relationship between the color coordinates of the lamp and the polar coordinates on the hue ring; Obtaining the initial polar coordinates according to the initial color coordinates and the coordinate mapping relationship; Obtaining the offset angle; Forming the target polar coordinates based on the initial polar coordinates and the offset angle; Obtaining the target color coordinates corresponding to the target polar coordinates according to the target polar coordinates and the coordinate mapping relationship; Adjusting the color of the light emitted by the lamp based on the target color coordinates.

2. The lighting color adjustment method according to claim 1, wherein, Establishing a mapping relationship between the color coordinates under the control address and the polar coordinates on the hue ring based on the control address of the lamp, and controlling the hue offset process of the lamp based on the control address, where the hue offset process is defined as starting from obtaining the offset angle until obtaining the target color coordinates.

3. The lighting color adjustment method according to claim 2, wherein, The lamp has a single control address, and the method for adjusting the color of the lamp is as follows: Establishing a mapping relationship between the color coordinates of the lamp under the control address and the polar coordinates on the hue ring; Controlling the hue offset process of the lamp based on the control address includes: Obtaining the offset angle of the lamp under the control address, and adjusting the initial polar coordinates on the hue ring based on the offset angle to obtain the offset target polar coordinates; Inverse mapping the target polar coordinates back to the color coordinate system of the lamp to obtain the target color coordinates of the lamp under the control address; Adjusting the color of the lamp based on the target color coordinates.

4. The lighting color adjustment method according to claim 2, wherein, If the lamp has multiple control addresses, the method for adjusting the color of the lamp is as follows: Establishing a mapping relationship between the color coordinates of each control address and the polar coordinates on the hue ring; Obtaining the target color coordinates under all control addresses, and the obtaining method of any one of the target color coordinates includes: Obtaining the offset angle under a single control address, and adjusting the initial polar coordinates on the hue ring based on the offset angle to obtain the offset target polar coordinates under this single address; Inverse mapping the target polar coordinates back to the color coordinate system to obtain the target color coordinates under this control address; Adjusting the color of the light emitted by the lamp based on the target color coordinates under all control addresses.

5. The lighting color adjustment method according to claim 4, wherein, The color offset processes of each control address are independent of each other.

6. The lighting color adjustment method according to claim 1, wherein, The range of the offset angle is 0° to 360°.

7. The method for adjusting the color of a lamp according to claim 1, wherein, The method for obtaining the offset angle through the APP to control the color adjustment of the lamp includes: Inputting the offset angle through the APP; Sending the information of the offset angle to the cloud through the APP; Sending the information of the offset angle to the gateway through the cloud; Each gateway broadcasts the offset angle to the lamps connected to it; The lamp adjusts the color of the lamp according to the obtained offset angle.

8. The lighting color adjustment method according to claim 1, wherein, The method for obtaining the offset angle through the knob to control the color adjustment of the lamp includes: Rotating the knob on the lamp, and taking the rotation angle of the knob as the offset angle; Sending the information of the offset angle to the gateway through the lamp; Sending the information of the offset angle to other gateways within the local area network through the gateway; Each gateway broadcasts the offset angle to the lamps connected to it; The lamp adjusts the color of the lamp according to the obtained offset angle.

9. A lighting fixture, wherein, Apply the lighting fixture color adjustment method according to any one of claims 1 to 8.

10. A lighting system, wherein, Including: Several lighting fixtures according to claim 9; A control terminal configured to input an offset angle, and the control terminal includes at least one of an APP, a knob, and a panel; The lighting fixture communicates with the control terminal through a communication module, and the communication module includes a cloud and a gateway.

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