| CPC G05D 1/249 (2024.01) [G05D 1/247 (2024.01); G06V 20/10 (2022.01); G06V 40/10 (2022.01); G10L 15/1815 (2013.01); G10L 15/22 (2013.01)] | 20 Claims |

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1. A control device, comprising:
a central processing unit (CPU) configured to:
recognize an external environment based on sensing information;
implement a recognition algorithm associated with the recognition of the external environment;
determine a first difficulty level of the recognition of the external environment based on at least one of the implemented recognition algorithm or an accuracy of the recognition;
determine a degree of attention of a user toward the control device;
determine a first exhibition of an emotional expression based on the first difficulty level of the recognition of the external environment and the degree of attention of the user toward the control device; and
control a first action based on the determined first exhibition of the emotional expression, wherein the first action corresponds to the emotional expression.
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