Imaging Antenna Power Control for Distance-Based Wireless Transfer
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Solution Overview
Problem
Existing imaging apparatuses with wireless communication functions consume more power than necessary due to fixed power supply settings, which do not account for varying communication distances, and lack the ability to associate user intent with power consumption.
Innovation Solution
An imaging apparatus with a power control unit that adjusts power supply to the antenna based on transmission conditions of captured image data, using different power levels (P1, P2, P3) for varying communication distances and user operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power to antenna is determined on the assumption of long distance wireless communication, then communication reliability is improved, but power consumption increases unnecessarily for short distance communication
Solution Approach 1:
The patent implements dynamic power adjustment by switching between multiple power levels (first power level for long distance, second power level for short distance) based on detected human body approach. The power control unit dynamically changes the power supplied to the antenna from the first power level to the second power level when a human body approaches within a predetermined distance, resolving the contradiction between maintaining communication reliability and reducing unnecessary power consumption.
Solution Approach 2:
The patent changes the power parameter of the antenna based on communication distance conditions. By detecting human body approach and switching between different power levels (first power level and second power level), the system adapts the power parameter to match actual communication needs, thereby reducing power consumption while maintaining adequate communication reliability.
2Use of energy by moving object
If a sensor that detects human body approach is used, then power consumption can be reduced, but device complexity increases due to additional components
Solution Approach 1:
The patent makes the image processing unit perform multiple functions: it not only processes captured images but also detects human body approach by analyzing image data. This multi-functionality eliminates the need for separate sensors, reducing device complexity while enabling power consumption reduction through human body detection.
Solution Approach 2:
The imaging apparatus uses its own image processing capabilities to detect human body approach, making the system self-sufficient. The image processing unit analyzes captured images to determine whether a human body has approached, eliminating the need for external sensors and additional components, thereby reducing device complexity while achieving power management.
3Use of energy by moving object
If power is reduced for short distance communication, then power consumption decreases, but communication reliability may deteriorate
Solution Approach 1:
The system dynamically adjusts power levels based on actual communication conditions. When a human body approaches within a predetermined distance (indicating short distance communication), the power control unit switches from the first power level to the second power level. This dynamic adjustment ensures that power is reduced only when appropriate, maintaining communication reliability while reducing unnecessary power consumption.
Solution Approach 2:
The system uses feedback from human body detection (through image processing) to control power levels. The detection result feeds back to the power control unit, which adjusts the antenna power accordingly. This feedback mechanism ensures that power reduction does not compromise communication reliability, as power is adjusted based on actual communication distance conditions.
Data Source
AI summary
An imaging apparatus includes: a wireless communication unit that performs wireless communication with another information processing apparatus using an antenna; and a power control unit that controls power to be supplied to the antenna in accordance with a transmission condition of captured image data in the wireless communication.