Wireless Reception Timing Control for Low-Power Signal Waiting
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Solution Overview
Problem
Existing device authentication techniques, such as those described in Patent Literature 1, result in increased power consumption due to signal reception waiting periods, which is also true for signals other than authentication signals.
Innovation Solution
A control device and method that control the reception waiting time of signals based on acquired notification information, optimizing the timing for transitioning to and ending the reception waiting state to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver continuously waits for signal reception, then signal reception reliability is improved, but power consumption increases
Solution Approach 1:
The receiver transitions between active reception waiting states and low-power sleep states in periodic cycles. The control device determines optimal reception waiting periods based on communication history and signal patterns, allowing the receiver to maintain reliability during active periods while reducing power consumption during sleep periods.
Solution Approach 2:
The control device predicts signal transmission timing based on acquired notification information and communication patterns before the actual signal arrives. This preliminary prediction allows the receiver to activate just in time for signal reception, avoiding continuous waiting while ensuring no signals are missed.
2Measurement precision
If the reception waiting time is extended, then signal reception accuracy is improved, but power consumption increases
Solution Approach 1:
The reception waiting time is dynamically adjusted based on communication conditions, signal strength, and historical patterns. The control device extends waiting time when signal accuracy is critical and reduces it when power conservation is prioritized, creating a dynamic balance between accuracy and energy consumption.
Solution Approach 2:
The system changes the reception waiting time parameter based on acquired notification information and communication context. By adjusting this temporal parameter dynamically, the system optimizes the trade-off between reception accuracy and power consumption for different operational scenarios.
Data Source
AI summary
A control device and a control method that can reduce power consumption for waiting for reception of a signal are provided. The control device includes a controller configured to control a communicator such that the communicator performs wireless communication with another device. The controller controls a reception waiting time of a predetermined signal which is transmitted from the other device by the wireless communication on the basis of acquired acquisition information.