Dynamic Connection Interval for BLE Remote Control
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Solution Overview
Problem
Bluetooth Low Energy (BLE) devices face issues with key repeat events due to longer data transmission/reception intervals, leading to unintended tasks when remote controlling devices like digital cameras, as the interval may not align with user-intended button press durations.
Innovation Solution
A communication apparatus that adjusts its communication interval dynamically in response to remote control operations, ensuring that tasks are executed only when the intended interval has elapsed and not before, thereby preventing unnecessary key repeat events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the connection interval (CI) is set to a longer duration to reduce power consumption in BLE communication, then energy efficiency is improved, but the device cannot respond timely to remote control operations and may generate unintended key repeat events
Solution Approach 1:
The connection interval is made dynamic rather than fixed. The system adjusts the CI based on the operational state: using a longer CI during idle periods to save power, and switching to a shorter CI during active remote control operations to ensure timely response and prevent key repeat events. This dynamic adjustment resolves the contradiction between power efficiency and operational reliability.
Solution Approach 2:
The patent changes the parameter of connection interval duration based on operational context. By monitoring whether the device is in remote control mode or idle state, the system modifies the CI parameter accordingly - extending it for power savings during idle periods and reducing it for responsive operation during active control, thus resolving the trade-off between energy consumption and operational accuracy.
2Speed
If the connection interval (CI) is shortened to enable timely response to remote control operations, then operational responsiveness is improved, but power consumption increases
Solution Approach 1:
The connection interval is dynamically adjusted based on operational needs. During active remote control operations, the system uses a shorter CI to ensure fast response and prevent key repeat events. During idle periods, it transitions to a longer CI to reduce power consumption. This dynamic behavior resolves the contradiction between response speed and energy usage.
Solution Approach 2:
The system employs periodic communication at different intervals depending on the operational state. Instead of continuous short-interval communication that would consume excessive power, the system uses periodic long-interval communication during idle periods and switches to periodic short-interval communication during active operations, optimizing both responsiveness and power efficiency.
Data Source
AI summary
A communication apparatus accepts remote control from an external apparatus via wireless communication, and includes a communication unit configured to communicate with the external apparatus, and a control unit configured to execute, in response to an operation request that the communication unit has received from the external apparatus, the request being performed through the remote control, a task corresponding to the operation. The control unit sets a time interval relating to a timing at which communication with the external apparatus is performed, and controls the communication unit to perform communication with the external apparatus in compliance with the set time interval.