Nursing Bed Voice Control Heart Rate Adjustment
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Solution Overview
Problem
Conventional electric nursing beds lack intelligent control, making it difficult for elderly patients with mobility or health issues to adjust the bed's angle automatically based on their vital signs or sleep state, potentially affecting their health and sleep quality.
Innovation Solution
A nursing bed equipped with a drive motor and a controller that includes a voice recognition module and heart rate monitoring system, allowing users to control the bed's angle through voice commands and automatically adjusting the bed's position based on heart rate analysis to ensure comfortable sleep and health monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of bed angle is used, then device complexity is reduced, but ease of operation deteriorates for elderly patients with mobility issues
Solution Approach 1:
The nursing bed system automatically monitors the user's heart rate through the mattress sensor and autonomously adjusts the bed angle without requiring manual input from the user. The controller receives heart rate data, processes it to determine sleep state, and automatically commands the motor to adjust the bed position, enabling the system to serve itself rather than requiring user operation.
Solution Approach 2:
The patent replaces manual mechanical control with an automated electromechanical system. The heart rate sensor and controller substitute for manual operation, using electrical signals to control the motor-driven mechanical adjustment mechanism, thereby eliminating the need for direct user interaction with mechanical controls.
2Adaptability or versatility
If automatic heart rate monitoring and voice recognition are added, then intelligentization is improved, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it processes heart rate data from the mattress sensor, recognizes voice commands, controls the motor for bed angle adjustment, and monitors sleep state. By consolidating these diverse functions into a single controller unit, the system achieves high adaptability and intelligence while managing complexity through functional integration.
Solution Approach 2:
The patent combines the heart rate monitoring system, voice recognition module, and motor control system into an integrated nursing bed platform. The controller merges data processing from multiple sensors and actuators into a unified control mechanism, achieving intelligent adaptability while reducing overall system complexity through consolidation.
3Productivity
If quick adjustment of backrest bed board is made, then productivity is improved, but health of old people with weak vital signs may be influenced
Solution Approach 1:
The system continuously monitors the user's heart rate through the mattress-integrated sensor and uses this feedback to determine the appropriate adjustment speed. The controller processes real-time heart rate data to assess the user's physiological state and dynamically adjusts the motor speed accordingly, ensuring safe operation for users with weak vital signs while maintaining efficient adjustment when appropriate.
Solution Approach 2:
The motor adjustment speed is made dynamic rather than fixed. The system adapts the speed of bed angle adjustment based on real-time physiological feedback from the user. When heart rate indicates vulnerability, the system automatically reduces adjustment speed to ensure safety, while allowing faster adjustment when the user's condition permits, thus optimizing both productivity and reliability.
Data Source
AI summary
Provided is a nursing bed based on heart rate monitoring and voice recognition. The nursing bed includes a nursing bed body, a drive motor and a controller. The nursing bed body includes a bed body fixed part, a bed body movable part and a connector. The bed body fixed part is hinged with a side of the connector, and the bed body moveable part is connected with another side of the connector fixedly. A motor base of the drive motor is installed on the bed body fixed part fixedly, an output shaft of the drive motor is connected with another part of the connector in a meshing manner, and the drive motor is configured to drive the bed body moveable part to swing through the connector.