Control Apparatus Key Interrupt Mode Power Saving
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Solution Overview
Problem
Existing control apparatuses for electronic devices consume unnecessary power when keys are input while the device is in a power-off state, as they continue to transmit signals corresponding to the key inputs.
Innovation Solution
A control apparatus that operates in different modes based on the power state of an electronic device, specifically allowing only a pre-determined key to operate in an interrupt method when the device is off, and switching to a matrix method for all keys when the device is on.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the control apparatus transmits signals for all key inputs regardless of device power state, then all key functions are available, but unnecessary power is consumed when device is off
Solution Approach 1:
The control apparatus dynamically changes its operational mode based on the power state of the electronic device. When the device is off, only the power key operates in interrupt mode while other keys are disabled. When the device is on, all keys operate in matrix mode. This dynamic adaptation resolves the contradiction by providing full functionality when needed and limiting operations to reduce power consumption when the device is off.
Solution Approach 2:
The system changes the operational parameters of the keys based on the power state. The power key switches between interrupt mode and matrix mode depending on whether the device is on or off. This parameter change allows the system to maintain full functionality when the device is on while reducing power consumption by limiting key operations when the device is off.
2Loss of energy
If the control apparatus limits key operations to reduce power consumption, then power is saved, but key functionality is reduced
Solution Approach 1:
The control apparatus dynamically adjusts key functionality based on the power state. When the device is off, it limits operations to only the power key in interrupt mode to reduce power consumption. When the device is on, it enables all keys in matrix mode to provide full functionality. This dynamic adjustment resolves the contradiction by adapting the balance between power saving and functionality based on actual system state.
Solution Approach 2:
The system changes operational parameters of the key interface based on power state detection. The controller modifies which keys are active and in what mode (interrupt vs matrix) depending on whether the electronic device is on or off. This parameter change enables the system to reduce power consumption when the device is off while maintaining full functionality when the device is on.
3Loss of energy
If the control apparatus uses interrupt mode for power key, then power consumption is reduced, but response time may be affected
Solution Approach 1:
The control apparatus dynamically switches between interrupt mode and matrix mode based on the power state of the electronic device. When the device is off, interrupt mode is used for the power key to reduce power consumption. When the device is on, matrix mode is used for all keys to ensure fast response and full functionality. This dynamic switching resolves the contradiction by adapting the response mechanism to the current system state.
Solution Approach 2:
The system changes the operational mode parameter of the power key based on power state detection. The controller switches between interrupt mode (for power saving when device is off) and matrix mode (for fast response when device is on). This parameter change allows the system to optimize between power consumption and response time based on actual operational conditions.
Data Source
AI summary
Provided is a control apparatus including a key input interface including a plurality of keys, a communication interface configured to communicate with an electronic device, a memory storing store one or more instructions, and a processor configured to execute the one or more instructions stored in the memory to detect whether a power of the electronic device is turned on or turned off, and control the control apparatus to operate in a first mode, based on detecting that the power of the electronic device is turned off, wherein the operating in the first mode includes operating a pre-determined first key from among the plurality of keys in an interrupt mode, and not operating a second key other than the first key from among the plurality of keys.