| CPC G06F 11/3051 (2013.01) [G06F 11/3041 (2013.01); G06F 13/102 (2013.01); G09G 5/006 (2013.01); H04L 67/51 (2022.05); H04N 7/0255 (2013.01); G09G 2370/04 (2013.01)] | 20 Claims |

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[ 12. A control device comprising:
a memory configured to store instructions; and
a processor coupled to the memory and configured to execute the instructions to cause the control device to:
acquire device description information of a multimedia device via a multicast message from the multimedia device, wherein the multimedia device is an audio device, wherein the device description information is acquired using a predetermined frequency, and wherein the predetermined frequency is dependent on a universally unique identifier (UUID) of the multimedia device;
acquire an appearance image of the multimedia device from a network side according to the device description information by searching for the appearance image on the network side based on the device description information; and
associate the device description information with the appearance image of the multimedia device. ]
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