Lamp effect linkage control method and system and storage medium

Abstract

The invention relates to the technical field of electronic devices, in particular to a lamp effect linkage control method and system and a storage medium, the method is applied to the lamp effect linkage control system, the system comprises an interaction control module and two or more electronic devices, and the method comprises the steps that the interaction control module and the electronic devices establish communication connection; the interaction control module sends the lamp effect configuration data to each electronic device; and the two or more electronic devices display the linkage lamp effect according to the lamp effect configuration data. According to the display method and device, linkage lamp effect display of multiple electronic devices can be achieved, a user can set the display effect and type of the lamp effect by himself / herself, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a method and system for controlling linkage of lighting effects, and a storage medium thereof. Background Art

[0002] Electronic devices are generally equipped with atmosphere lights, and the display lighting effects may include the color of the light, flashing frequency, colorful color cycles, breathing, etc. Although the lighting effects are diverse, the types of lighting effects that can be formed by most electronic devices are generally pre-configured by the manufacturer, and users can only choose from pre-configured lighting effect configurations.

[0003] In addition, taking the keyboard as an example, due to the limitation of MCU computing power, overly complex lighting effects may cause visual lag, because the frame rate per unit time is too small. At the same time, due to the limited storage space in the MCU, too many integrated lighting effects will greatly occupy space and cause overflow errors. At the same time, the lighting effects between peripherals are generally independent. If multiple electronic devices can only display their own preset display effects, it will affect the user experience. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a method and system for controlling lighting effects in linkage, and a storage medium thereof, and provide a method capable of realizing linkage lighting effects for multiple electronic devices.

[0005] The first aspect of the embodiments of the present application provides a method for linkage control of lighting effects, the method is applied to a lighting effect linkage control system, the lighting effect linkage control system includes an interactive control module and two or more electronic devices, the method includes: the interactive control module and the electronic device establish a communication connection; the interactive control module sends lighting effect configuration data to each of the electronic devices; two or more of the electronic devices display linkage lighting effects according to the lighting effect configuration data. In one embodiment, the interactive control module includes at least one host device, the host device is used to receive user settings and generate the lighting effect configuration data, and the step of establishing a communication connection between the interactive control module and the electronic device includes: the host device identifies the identification information of each of the electronic devices and establishes communication; the host device obtains the location information of each of the electronic devices; the host device generates the lighting effect configuration data.

[0006] In one embodiment, the step of generating the lighting effect configuration data by the host device includes: determining the identification information and the location information of the electronic device; determining the linkage lighting effect selected by the user; obtaining a color data packet corresponding to each electronic device based on the location information; encapsulating the color data packet based on the identification information of the electronic device to obtain a corresponding directional data packet; processing the directional data packet to obtain a frame data packet, and sending it to each electronic device respectively. In one embodiment, the electronic device has a display of inherent lighting effects, and after receiving the lighting effect configuration data, the electronic device switches from the inherent lighting effect to the linkage lighting effect, and switches back to the inherent lighting effect after the linkage lighting effect ends.

[0007] In one embodiment, the lighting effect linkage control system includes two interactive control modules and a plurality of electronic devices, and the two interactive control modules are respectively connected to two or more electronic devices, and the method includes: the two interactive control modules respectively establish communication connections with the electronic devices connected to them; a communication connection is established between the two interactive control modules; one of the two interactive control modules sends lighting effect configuration data to the other slave interactive control module, and the two interactive control modules respectively send the lighting effect configuration data to the electronic device; two or more electronic devices display linkage lighting effects according to the lighting effect configuration data.

[0008] In one embodiment, the electronic device is a keyboard, the interactive control module includes a host device, the host device is installed with host computer software, the host computer software is used by the user to set the linkage lighting effect and send the linkage lighting effect to the keyboard, the method includes: the host computer displays the virtual positions and identification information of multiple keyboards; the host computer receives the user's position sorting operation on the keyboard to make the virtual position consistent with the physical position of the keyboard; after receiving the user's setting, the host computer sends the lighting configuration information to each of the keyboards, and each keyboard displays the linkage lighting effect.

[0009] In one embodiment, the lighting effect configuration information includes one or more information of display color information, color change frequency information and mode information.

[0010] In one embodiment, the interactive control module and the electronic device are connected to each other by any one of Bluetooth, wireless fidelity WiFi, near field wireless communication NFC or universal serial bus USB.

[0011] A second aspect of an embodiment of the present application provides a lighting effect linkage control system, comprising an interactive control module and two or more electronic devices, wherein the interactive control module is used to perform the following steps: establish a communication connection with the electronic device; send lighting effect configuration data to each of the electronic devices; and two or more of the electronic devices are used to perform the following steps: display linkage lighting effects according to the lighting effect configuration data.

[0012] An embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, a method for lighting effect linkage control provided in an embodiment of the present application is implemented.

[0013] The beneficial effects of the embodiments of the present application are: the method of lighting effect linkage control is applied to a lighting effect linkage control system, the system includes an interactive control module and two or more electronic devices, and a communication connection is established between the interactive control module and the electronic devices. The user can set the lighting effect through the interactive control module, and send the lighting effect configuration data to each electronic device through the interactive control module. Each electronic device displays the linkage lighting effect according to the lighting effect configuration data, and multiple electronic devices can display the linkage lighting effect, and the user can set the display effect and type of the lighting effect by himself, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic diagram of the principle of a lighting effect linkage control system provided in one embodiment of the present application; Figure 2 A flowchart of a method for lighting effect linkage control provided in one embodiment of the present application; Figure 3 A schematic diagram of an application of a lighting effect linkage control system provided in one embodiment of the present application; Figure 4 A schematic diagram of a lighting effect linkage control system provided by another embodiment of the present application; Figure 5 A schematic diagram of a flow chart of establishing a communication connection between an interactive control module and an electronic device provided in an embodiment of the present application; Figure 6 A schematic diagram of a process for a host device to generate lighting effect configuration data according to an embodiment of the present application; Figure 7A schematic diagram of the architecture of a lighting effect linkage control system provided in another embodiment of the present application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0018] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] With the development of terminal products, the demand for full-scenario interconnection between electronic devices is gradually increasing. Electronic devices generally have various built-in ambient lights and display lighting effects, but each electronic device can generally only display inherent display lighting effects, which can no longer meet the scenarios of electronic device interconnection. For example, the lighting effects between multiple electronic devices lack a unified style, which greatly reduces the user experience.

[0021] See also Figure 1 and Figure 2 As shown, the embodiment of the present application provides a method for lighting effect linkage control, which is applied to a lighting effect linkage control system. The lighting effect linkage control system includes an interactive control module 100 and two or more electronic devices 200. The method includes the following steps: S101: The interactive control module 100 and the electronic device 200 establish a communication connection.

[0022] In the embodiment of the present application, the interactive control module 100 can be in the form of a control machine, a PC, a host computer, etc. Figure 3 , Figure 3 The figure shows a specific application scenario, in which the electronic device 200 is a keyboard, and the interactive control module 100 can be a host connected to the keyboard. It can be understood that the keyboard and the host can be connected via wired communication or wireless communication.

[0023] S102 , the interactive control module 100 sends the lighting effect configuration data to each electronic device 200 .

[0024] S103: Two or more electronic devices 200 display linked lighting effects according to the lighting effect configuration data.

[0025] In the embodiment of the present application, the interactive control module 100 can interact with the user, that is, the user can configure the configuration information of the relevant lighting effect display, such as the type of lighting effect, the display effect of the lighting effect, and the device selection of the lighting effect linkage. Figure 3 The interactive control module 100 is a host, and the electronic device 200 connected to it is a keyboard. At the same time, the host can be installed with a host computer software, and the user configures the lighting effect through the host computer software. After receiving the lighting effect configuration data, the electronic device 200 displays the linkage lighting effect. A keyboard LED module is provided on multiple keyboards. The LED module may include one type or multiple types of lights, and may be composed of multiple indicator lights of different colors, presenting different colors, different flashing modes and other effects to the user.

[0026] An integral display screen can be formed between multiple keyboards to display linked lighting effects. In some embodiments, the linked lighting effect is, for example, a bouncy ball lighting effect. The lighting effect can be displayed by jumping between multiple keyboards, for example, jumping from the first keyboard to the second keyboard, forming a linked lighting effect to improve the user experience. The linked lighting effects can be switched according to the actual user settings, such as rainbow lighting effects, volume bar lighting effects, and breathing lighting effects.

[0027] The method for linkage control of lighting effects provided in the embodiment of the present application is applied to a linkage control system of lighting effects. By establishing a communication connection between the interactive control module 100 and each electronic device 200, the user can set the linkage lighting effect through the interactive control module 100, and send the lighting effect configuration data to each electronic device 200 through the interactive control module 100. Each electronic device 200 displays the linkage lighting effect according to the lighting effect configuration data, which can realize the display of linkage lighting effects by multiple electronic devices 200, and the user can set the display effect and type of the lighting effect by himself, thereby improving the user experience.

[0028] See also Figures 1 to 5In one embodiment, the interactive control module 100 includes at least one host device 110, and the host device 110 is used to receive user settings and generate lighting effect configuration data. The step S101 of establishing a communication connection between the interactive control module 100 and the electronic device 200 includes: S111 . The host device 110 identifies identification information of each electronic device 200 and establishes communication.

[0029] S112 : The host device 110 obtains location information of each electronic device 200 .

[0030] S113, the host device 110 generates lighting effect configuration data.

[0031] In an application scenario in the embodiment of the present application, the electronic device 200 takes a keyboard as an example, and the host device 110 can be a personal computer, which is connected to a display. The host device 110 can first establish a communication connection with each electronic device 200, and can identify the identification information of the electronic device 200. The electronic device 200 takes a keyboard as an example. Each keyboard will have a unique identifier in the device manager, and different keyboards can be distinguished by this identifier, that is, keyboard KB1, keyboard KB2 and keyboard KB3 have different and unique device ID information respectively, and the host device 110 identifies different keyboards through the device ID information. Further, the host device 110 also obtains the location information of each electronic device 200 and generates lighting effect configuration data according to user settings. In the embodiment of the present application, each electronic device 200 and the corresponding location information are identified by the host device 110, which is convenient for setting the linkage lighting effect. Identifying each keyboard can ensure that the lighting effect configuration data is correctly sent to different keyboards. When a lighting effect display failure occurs on a keyboard, by identifying the specific keyboard device, the problem can be quickly located and repaired or replaced, thereby improving the user experience.

[0032] See also Figures 1 to 6 In one embodiment, the step S113 of the host device 110 generating lighting effect configuration data includes the following steps: S1131 . Determine identification information and location information of the electronic device 200 .

[0033] S1132: Determine the linkage lighting effect selected by the user.

[0034] S1133. Obtain a color data packet corresponding to each electronic device 200 based on the location information.

[0035] S1134 , encapsulating the color data packet based on the identification information of the electronic device 200 to obtain a corresponding directional data packet.

[0036] S1135 , obtain frame data packets after processing the directional data packets, and send them to each electronic device 200 respectively.

[0037] In the embodiment of the present application, the electronic device 200 takes the keyboard as an example, the host device 110 can be a personal computer, the keyboard KB1, the keyboard KB2 and the keyboard KB3 respectively have different and unique device ID information, the host device 110 identifies different keyboards through the device ID information, and the host device 110 is also used to determine the position information of the keyboard. For example, the positions of the keyboard KB1, the keyboard KB2 and the keyboard KB3 are keyboard KB2, keyboard KB3 and keyboard KB1 from left to right respectively. The position information of each keyboard can be displayed on the host device 110. After the user selects the linkage lighting effect, the host device 110 obtains the corresponding color data packet according to the position information of each keyboard.

[0038] Specifically, the lighting effects of three 6*21 pixel keyboards are linked, and the corresponding device IDs are KB1 (=0x01), KB2 (=0x02), and KB3 (=0x03), and their physical positions from left to right are KB2, KB3, and KB1. There will be a device list on the host device 110 listing the available devices, and the user can select a specific lighting effect. Regardless of whether each keyboard is connected via USB or wirelessly, a connection handle will exist when the host device 110 is connected, which is set to SN1 (=0x11), SN2 (=0x12), and SN3 (=0x13). On the host computer, it has a built-in data type such as a python dictionary structure type, which is used to bind KB1-SN1, KB2-SN2, and KB3-SN3, that is, the device ID and the connection handle are bound. The host computer of the host device 110 calls the algorithm to obtain the resolution data of 6*63 pixels of several frames. One pixel is 32-bit data. Taking RGB as an example, it includes 8 bits of R data, 8 bits of G data, and 8 bits of B data. One frame contains 6*63*(32 / 8)=1512Byte color data. Since the pixel of a keyboard has a resolution of 6*21, the 1512Byte color data is divided into 3 parts according to the 6*21 resolution. Each part is 1512Byte / 3=504Byte color data, that is, the first part is the first 504Byte (set as color Data1), the second part is the middle 504Byte (set as colorData2), and the third part is the last 504Byte (set as color Data3), which correspond to keyboard KB2, keyboard KB3, and keyboard KB1 respectively, and the following three color data packets are obtained: Color Data Pack 1-1:

[0039] Color Data Pack 1-2:

[0040] Color Data Pack 1-3:

[0041] After obtaining the color data packet corresponding to each keyboard, the data will be further packaged to obtain the following three directional data packets, and then the data will be sent in a directional manner according to the correspondence between the device ID and the connection handle.

[0042] Directed Data Packet 2-1:

[0043] Directed Data Packet 2-2:

[0044] Directed Packet 2-3:

[0045] According to the connection handle, it can be distinguished whether the target device is a keyboard or other host device 110. If it is a keyboard, it is further processed into a frame data packet and sent down according to 512Byte.

[0046] Frame data packet 3-1:

[0047] Frame data packet 3-2:

[0048] Frame data packet 3-3:

[0049] See also Figures 1 to 7 In one embodiment, the lighting effect linkage control system includes two interactive control modules 100 and multiple electronic devices 200. The two interactive control modules 100 are respectively connected to two or more electronic devices 200. The method includes the following steps: The two interactive control modules 100 respectively establish communication connections with the electronic devices 200 to which they are connected.

[0050] A communication connection is established between the two interactive control modules 100 .

[0051] One of the two interactive control modules 100 sends the lighting effect configuration data to the other interactive control module 100 , and the two interactive control modules 100 then send the lighting effect configuration data to the electronic device 200 respectively.

[0052] Two or more electronic devices 200 display linked lighting effects according to the lighting effect configuration data.

[0053] In the present application, see Figure 7As shown, the lighting effect linkage control system may include two interactive control modules 100. The interactive control module 100 is, for example, a computer host. For example, two computer hosts are each connected to multiple keyboards. A communication connection can be established between host A and host B, such as TCP / IP protocol for data exchange to achieve a sharing function. It can be understood that after the communication is established, both host A and host B can share data. The sharing function can be initiated by either party and accepted by the other party. The lighting effect information set by the user on a certain computer can be shared and sent to another computer, and the keyboards connected to the two computers can be linked together to display the lighting effect, which further improves the user's freedom and increases the display range of the linkage lighting effect.

[0054] See also Figures 1 to 7 In one embodiment, the electronic device 200 has a display of inherent lighting effects. After receiving the lighting effect configuration data, the electronic device 200 switches from the inherent lighting effect to the linkage lighting effect display, and switches back to the inherent lighting effect display after the linkage lighting effect ends. After the user sets a linkage lighting effect, the electronic device 200 can display it after receiving the lighting effect configuration data. At this time, the original lighting effect is interrupted. When the linkage lighting effect display ends, the original lighting effect display is automatically restored.

[0055] See also Figures 1 to 7 In one embodiment, the electronic device 200 is a keyboard, and the interactive control module 100 includes a host device 110, which is installed with a host computer software. The host computer software is used by the user to set the linkage lighting effect and send the linkage lighting effect to the keyboard. The method includes: the host computer displays the virtual positions and identification information of multiple keyboards; the host computer receives the user's operation of sorting the positions of the keyboards so that the virtual positions are consistent with the physical positions of the keyboards. After receiving the user's settings, the host computer sends the lighting configuration information to each keyboard, and each keyboard displays the linkage lighting effect. Please refer to Figure 4 As shown, the upper computer software can intuitively display the virtual position information and actual physical placement of the keyboard, making it easy for users to set the position according to the lighting effect they want to set.

[0056] See also Figures 1 to 7 In one embodiment, the lighting effect configuration information includes one or more information of display color information, color change frequency information, and mode information.

[0057] See also Figures 1 to 7In one embodiment, when the method for lighting effect linkage control provided in the embodiment of the present application is used for a lighting effect control system, the connection method between the interactive control module 100 and the electronic device 200 is not limited to wireless connection or wired connection, wherein the wireless connection may include establishing a radio frequency communication connection, 2.4G wireless communication, WiFi connection, Bluetooth connection, NFC connection, or communicating with the help of future communication technology to perform command interaction, etc., and the wired connection may include a universal serial bus (USB) connection, etc.

[0058] See also Figure 1 The embodiment of the present application further provides a lighting effect linkage control system, including an interactive control module 100 and two or more electronic devices 200, wherein the interactive control module 100 is used to perform the following steps: establish a communication connection with the electronic device 200, and send lighting effect configuration data to each electronic device 200.

[0059] Two or more electronic devices 200 are used to perform the following steps: The linked lighting effects are displayed according to the lighting effect configuration data.

[0060] The embodiment of the present application also provides a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable a processor to implement the method provided in the embodiment of the present application when executed.

[0061] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0062] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0063] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0064] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for lighting effect linkage control, characterized in that: The method is applied to a lighting effect linkage control system, which includes an interactive control module and two or more electronic devices. The method includes: The interactive control module establishes a communication connection with the electronic device; The interactive control module sends the lighting effect configuration data to each of the electronic devices; Two or more electronic devices display linked lighting effects according to the lighting effect configuration data.

2. The method according to claim 1, characterized in that The interactive control module includes at least one host device, and the host device is used to receive user settings and generate the lighting effect configuration data. The steps of establishing a communication connection between the interactive control module and the electronic device include: The host device identifies identification information of each of the electronic devices and establishes communication; The host device acquires the location information of each of the electronic devices; The host device generates the lighting effect configuration data.

3. The method according to claim 2, characterized in that The step of generating the lighting effect configuration data by the host device comprises: Determining the identification information and the location information of the electronic device; Determine the linkage lighting effect selected by the user; Obtaining a color data packet corresponding to each of the electronic devices based on the location information; Encapsulating the color data packet based on the identification information of the electronic device to obtain a corresponding directional data packet; The directional data packets are processed to obtain frame data packets, which are sent to each of the electronic devices respectively.

4. The method according to claim 1, characterized in that The electronic device has a display of inherent lighting effects. After receiving the lighting effect configuration data, the electronic device switches from the inherent lighting effects to the display of the linkage lighting effects, and switches back to the display of the inherent lighting effects after the linkage lighting effects end.

5. The method according to claim 1, characterized in that The lighting effect linkage control system comprises two interactive control modules and a plurality of electronic devices, wherein the two interactive control modules are respectively connected to two or more electronic devices, and the method comprises: The two interactive control modules respectively establish communication connections with the electronic devices connected to them; Establishing a communication connection between the two interactive control modules; One of the two interactive control modules sends the lighting effect configuration data to the other slave interactive control module, and the two interactive control modules respectively send the lighting effect configuration data to the electronic device; Two or more electronic devices display linked lighting effects according to the lighting effect configuration data.

6. The method according to claim 1, characterized in that The electronic device is a keyboard, the interactive control module includes a host device, the host device is installed with host computer software, the host computer software is used for the user to set the linkage lighting effect and send the linkage lighting effect to the keyboard, and the method includes: The host computer displays virtual positions and identification information of the plurality of keyboards; The host computer receives a user's operation of sorting the position of the keyboard so that the virtual position is consistent with the physical position of the keyboard; After receiving the user settings, the host computer sends the lighting configuration information to each of the keyboards, and each of the keyboards displays the linked lighting effects.

7. The method according to any one of claims 1 to 6, characterized in that: The lighting effect configuration information includes one or more information of display color information, color change frequency information and mode information.

8. The method according to any one of claims 1 to 6, characterized in that The interactive control module and the electronic device are connected to each other by any one of Bluetooth, wireless fidelity WiFi, near field wireless communication NFC or universal serial bus USB.

9. A lighting effect linkage control system, characterized in that: The system comprises an interactive control module and two or more electronic devices, wherein the interactive control module is used to perform the following steps: Establishing a communication connection with the electronic device; Sending the lighting effect configuration data to each of the electronic devices; and Two or more electronic devices are used to perform the following steps: The linked lighting effects are displayed according to the lighting effect configuration data.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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