Image Capture Cooling Control via Dynamic Power Switching
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Solution Overview
Problem
Existing image capture apparatuses lack an effective method to control cooling device power based on the operational state, leading to suboptimal image quality due to dark current noise from heat generation and ambient temperature increases.
Innovation Solution
An image capture apparatus with a connection unit for a cooling device, a detection unit to recognize the cooling device's connection, and a control unit that adjusts power for the cooling device using methods like DC control or PWM control based on the operational state and power control method of the apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cooling device is driven using DC control to reduce dark current noise, then image quality is improved, but power consumption increases and the device generates more heat
Solution Approach 1:
The patent implements dynamic switching between DC control and PWM control modes based on the operational state of the image capture apparatus. The control unit determines whether to use DC control (for high image quality requirements) or PWM control (for lower power consumption) by evaluating current operational conditions, thereby adaptively optimizing the balance between image quality and power consumption
Solution Approach 2:
The patent changes the control parameter mode (voltage control vs. pulse width modulation) of the cooling device based on operational state. By switching between different control methods with distinct characteristics, the system can adjust the trade-off between cooling effectiveness (image quality) and power consumption according to current needs
2Use of energy by moving object
If the cooling device is driven using PWM control to reduce power consumption, then power efficiency is improved, but image quality deteriorates due to increased dark current noise
Solution Approach 1:
The system dynamically selects between PWM and DC control modes based on operational state evaluation. When power efficiency is prioritized and image quality requirements are lower, PWM control is used; when high image quality is needed, the system switches to DC control, creating a dynamic optimization strategy
Solution Approach 2:
The control parameter approach is changed from pulse width modulation to direct voltage control (or vice versa) based on operational conditions. This parameter change allows the system to shift between power-efficient operation and image-quality-optimized operation
3Manufacturing precision
If the cooling capacity is increased to reduce dark current noise, then image quality is improved, but the device generates more heat and consumes more power
Solution Approach 1:
The patent implements dynamic adjustment of cooling capacity based on operational state. The control unit evaluates whether high cooling capacity is currently needed and adjusts the cooling device accordingly, preventing unnecessary heat generation while maintaining image quality when needed
Solution Approach 2:
The control method parameter is changed between DC control (higher power, better cooling) and PWM control (lower power, less cooling) based on operational conditions, allowing the system to adjust cooling capacity dynamically rather than operating at fixed high capacity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for optimized power management of the cooling device, reducing dark current noise and enhancing image quality by dynamically adjusting cooling capacity according to the operational state of the image capture apparatus.
Implementation Method 1
a method is employed for reducing dark current noise by cooling the inside of the device using a cooling device such as a Peltier element
Data Source
AI summary
An image capture apparatus comprises a connection unit that connects a cooling device, a detection unit that detects that the cooling device is connected, and a control unit that, when the cooling device is connected to the image capture apparatus, controls power for driving the cooling device based on a power control method for driving the cooling device and an operational state of the image capture apparatus.