Terahertz Imaging System Adaptive Power Mode Switching
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Solution Overview
Problem
Imaging systems that emit terahertz waves face high power consumption issues when used for continuous photography, as the lighting devices require significant energy to operate effectively.
Innovation Solution
An imaging system with a first and second operation mode for terahertz wave emission, where the power consumption is adjusted based on the presence of a target, using a control device to switch between modes, and incorporating a detection device to determine when to increase light emission for higher power consumption for precise imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lighting device emits terahertz waves at high power for continuous photography, then imaging capability is maintained, but power consumption increases significantly
Solution Approach 1:
The lighting device dynamically adjusts its operation between two modes: first operation mode with low light emission quantity for general surveillance, and second operation mode with high light emission quantity for detailed imaging. The control device switches between these modes based on detection device feedback, enabling adaptive power consumption that maintains imaging capability only when necessary.
Solution Approach 2:
The system employs periodic scanning in the first operation mode where the lighting device emits terahertz waves at low power continuously but intermittently, allowing the detection device to monitor for targets. When a target is detected, the system transitions to second operation mode for high-power imaging, then returns to first operation mode, creating a periodic action pattern that reduces overall power consumption while maintaining surveillance reliability.
2Use of energy by moving object
If the lighting device operates in first operation mode with low light emission, then power consumption is reduced, but detection precision may be compromised
Solution Approach 1:
The detection device continuously monitors reflected terahertz waves during first operation mode and provides feedback to the control device. When the detection device identifies a target, it triggers the control device to switch to second operation mode, ensuring that high-precision imaging is activated only when needed. This feedback mechanism maintains detection precision while minimizing power consumption during normal operation.
Solution Approach 2:
The system performs preliminary detection at low power in first operation mode to identify potential targets before activating high-power imaging. This preliminary action filters out false positives and ensures that high-power mode is activated only when a real target is detected, maintaining detection precision while avoiding unnecessary high-power consumption.
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 approach reduces power consumption by minimizing light emission until a target is detected, allowing for efficient high-precision imaging with reduced energy usage, especially in surveillance applications.
Implementation Method 1
a first lighting device that emits terahertz waves at a first quantity of light emission in a first operation mode
Implementation Method 2
a first detection device that detects reflected terahertz waves by a target
Data Source
AI summary
An imaging system comprising: a first lighting device that emits terahertz waves at a first quantity of light emission in a first operation mode, and emits terahertz waves at a second quantity of light emission, which is larger than the first quantity of light emission, in a second operation mode; a first detection device that detects reflected terahertz waves by a target and a control device that switches from the first operation mode to the second operation mode in a case where the first detection device detects the target in the first operation mode.