Remote Controller Periodic Status Inquiry for Battery Conservation
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Solution Overview
Problem
Current remote control systems using wireless networks face challenges in bidirectional communication, particularly in efficiently managing power consumption and user-friendly operation, as they often require constant reception waiting states that drain battery life and involve user intervention for information transmission.
Innovation Solution
A communication system where the remote controller periodically checks for status inquiries with the host device at given intervals, allowing the communication unit to be in a dormant state most of the time, and extends the time interval of status inquiries based on the number of transmission times, enabling intermittent reception waiting states and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the remote controller is constantly in the reception waiting state to enable bidirectional communication, then the host device can transmit information to the remote controller, but the battery consumption becomes excessive
Solution Approach 1:
The remote controller enters a reception waiting state periodically at predetermined intervals rather than maintaining constant reception. The control unit switches the communication unit between reception waiting states and dormant states based on timing, enabling bidirectional communication while significantly reducing battery consumption by limiting active reception to specific periodic intervals.
2Use of energy by moving object
If the remote controller is in a dormant state to save power consumption, then battery life is extended, but information transmission triggered by the host device side becomes difficult
Solution Approach 1:
The host device transmits downlink frames containing information intended for the remote controller during periods when the remote controller is in reception waiting state. The remote controller checks received frames for downlink information and processes it accordingly, ensuring that information transmission triggered by the host device is not lost even though the remote controller operates in intermittent reception mode.
3Loss of time
If the remote controller frequently checks for status inquiries to detect host device transmission triggers, then information transmission can be detected promptly, but power consumption increases
Solution Approach 1:
The remote controller performs status checks and enters reception waiting state at predetermined periodic intervals rather than continuously monitoring. This periodic checking approach allows the remote controller to detect downlink information from the host device in a timely manner while minimizing the duration of high-power reception states, thus balancing response time with battery conservation.
Data Source
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AI summary
A communication system includes: a remote controller having an input unit inputting user operations and a communication unit performing bidirectional communication, transmitting a remote control code in accordance with the user operation with to the input unit from the communication unit; and a host device having a communication unit performing bidirectional communication and a host function unit executing processing corresponding to the remote control code received in the communication unit, wherein the host device transmits a status response from the communication unit in response to a status inquiry transmitted from the communication unit of the remote controller, the remote controller repeatedly executes a status check communication procedure including the transmission of the status inquiry and waiting for receiving the status response after transmitting the remote control code at given time intervals during which the communication unit is in a dormant state.