Dynamic Wireless Communication Interval for Power Saving
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Solution Overview
Problem
Digital cameras face challenges in maintaining a wireless connection with smartphones while minimizing power consumption, especially when in a power-off state, leading to delayed data transmission and increased power consumption during prolonged wireless communication intervals.
Innovation Solution
A communication apparatus with a generation unit, communication unit, and control unit that adjusts the time interval for wireless communication based on power consumption states, allowing for efficient data transmission and power saving by switching between BLE and BTC communication modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the digital camera maintains wireless connection with smartphone in power-off state, then data transmission responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent dynamically adjusts the wireless communication time interval based on the camera's power state. In power-on state, a first (shorter) time interval is used for responsive data transmission. In power-off state, a second (longer) time interval is used to reduce power consumption while maintaining connectivity capability. This dynamic adjustment resolves the contradiction between responsiveness and power consumption.
Solution Approach 2:
The patent changes the communication parameter (time interval) based on operational conditions. When transitioning from power-on to power-off state, the system changes the communication time interval from the first interval to the second interval, which is longer. This parameter change allows the system to maintain wireless connection functionality while adapting power consumption characteristics to match the operational state.
2Use of energy by moving object
If the communication time interval is prolonged in power-off state, then power consumption is reduced, but data transmission is delayed
Solution Approach 1:
The system dynamically switches between two communication time intervals based on power state. The control unit determines whether the camera is in power-on or power-off state and selects the appropriate time interval accordingly. This dynamic switching ensures that power consumption is reduced during power-off state while maintaining the capability for rapid data transmission when needed.
Solution Approach 2:
The patent implements periodic wireless communication at different intervals depending on operational state. In power-off state, communication occurs at the second (longer) periodic interval to conserve power. When power is supplied and image data needs transmission, the system can switch to the first (shorter) periodic interval, ensuring that data transmission delays are minimized when the camera is actively used.
Data Source
AI summary
A communication apparatus includes a generation unit configured to generate data in a first state, a communication unit configured to wirelessly communicate with an external apparatus at a first time interval, a transmission unit configured to transmit data to the external apparatus in response to a transition to a second state in which power consumption is smaller than power consumption in the first state. When the control unit controls the transmission unit not to transmit the data in the second state, the communication unit wirelessly communicates, in the second state, at a second time interval, the second time interval being larger than the first time interval. When the control unit controls the transmission unit to transmit the data in the second state, the communication unit wirelessly communicates, in the second state, at a third time interval, the third time interval being smaller than the second time interval.