Cooperative Robot Voice Range Tracking for Distant User Commands
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Solution Overview
Problem
Robots, especially fixed-type robots, struggle to accurately recognize user voice commands when they are far from the user, leading to ineffective operation.
Innovation Solution
A robot system where a movable robot determines the voice recognition range of a fixed robot and follows the user outside this range, ensuring the user's voice commands are recognized and processed within the robot's operational zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed-type robot is used, then the robot structure is simple and cost-effective, but the robot cannot accurately recognize user voice commands when far from the user
Solution Approach 1:
The patent combines a fixed-type robot and a movable robot into a cooperative system. The movable robot acts as an extension of the fixed robot's voice recognition capability, physically moving to bridge the gap when the user is outside the fixed robot's voice recognition range, thereby merging their functionalities to achieve both structural simplicity and position flexibility.
Solution Approach 2:
The movable robot serves as an intermediary between the user and the fixed robot. When the user is far from the fixed robot, the movable robot positions itself between them to receive and transmit voice commands, enabling the fixed robot to indirectly recognize commands from distant users while maintaining its simple fixed structure.
2Area of stationary object
If the robot is positioned far from the user, then the robot can cover a larger area, but the voice recognition accuracy deteriorates
Solution Approach 1:
The system employs dynamic positioning where the movable robot adjusts its position based on real-time conditions. When user coverage is needed, the movable robot extends the coverage area by positioning itself closer to the user, while maintaining the fixed robot's stationary coverage zone, creating a dynamically adaptable coverage area that preserves voice recognition accuracy.
3Reliability
If a movable robot is introduced to follow the user, then voice recognition accuracy is maintained, but the system complexity increases
Solution Approach 1:
The movable robot is designed with multi-functionality to justify its inclusion. It not only follows the user to maintain voice recognition accuracy but also performs auxiliary tasks such as obstacle detection, path planning, and coordinating with the fixed robot. This universal design reduces the relative impact of added complexity by providing multiple valuable functions.
Data Source
AI summary
A first robot may include: a communication circuit configured to transmit and receive a signal; a sensor configured to detect a surrounding environment; a driving device configured to implement movement of the first robot; and a processor configured to control the first robot. The processor may determine a second voice recognition range of a second robot on the basis of a confirmation signal transmitted from the second robot. When a user is positioned outside the determined second voice recognition range, the processor may control the driving device so that the first robot follows the user.