Wireless Communication Timing Control for Wearable Devices
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Solution Overview
Problem
Portable electronic devices with wireless communication functions experience unstable communication when worn on the body due to changes in positional relations and the presence of the human body, which acts as a shield to electric waves, disrupting wireless communication.
Innovation Solution
An electronic device equipped with a wireless communication circuit, a sensor section to detect movement, and a control section that sets connection timing based on the periodic cycle of the device's movement, ensuring stable communication by synchronizing wireless communication with favorable positional orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is performed continuously between devices worn on the body, then communication stability should be maintained, but energy consumption increases and communication may still be disrupted by body movement
Solution Approach 1:
The patent implements periodic wireless communication at specific intervals rather than continuous communication. The control section determines optimal connection timing based on periodic body movement cycles detected by sensors, establishing communication only at favorable moments when the devices are in optimal positional relationships, thus reducing overall energy consumption while maintaining communication stability.
2Reliability
If connection timing is set based on periodic movement cycle, then communication quality is improved, but device complexity increases due to sensor integration and cycle detection algorithms
Solution Approach 1:
The device uses its own sensor section to detect its periodic movement when worn on the body, and the control section autonomously determines optimal connection timing based on this self-detected movement cycle. This self-service approach eliminates the need for external synchronization systems or complex coordination with the other device, improving communication quality while managing device complexity through autonomous operation.
3Use of energy by moving object
If intermittent connection is used to save energy, then energy consumption is reduced, but communication stability deteriorates due to periodic disconnections
Solution Approach 1:
The control section uses feedback from the sensor section that detects periodic body movement to dynamically determine optimal connection timing. By continuously monitoring the movement cycle and adjusting connection timing accordingly, the system maintains communication stability during intermittent connections, ensuring data is transmitted only when positional conditions are favorable while conserving energy during non-communication periods.
Data Source
AI summary
An electronic device includes a wireless communication circuit section which intermittently executes connection with another electronic device by wireless communication, a sensor section which outputs sensor data related to the movement of the electronic device, and a control section. When the electronic device is making a periodic movement, the control section acquires the cycle of the periodic movement of the electronic device based on the sensor data, and causes the wireless communication circuit section to set connection timing for connecting the electronic device with the another electronic device by the wireless communication to periodic timing based on the cycle.