Low-Power Image Processing Device Event Detection
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Solution Overview
Problem
Image processing devices, such as monitoring cameras, experience latency and high power consumption due to the need to remain constantly powered on and wait for external signals to process and transmit event-related data.
Innovation Solution
An image processing device with an event detector and power controller that activates only essential elements when an event is detected, switching non-essential components to a low-power deactivation mode, and generates and transmits event signals to an access point to reduce latency and power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image processing device remains constantly powered on to receive external signals, then the device can process and transmit event data immediately, but power consumption increases excessively
Solution Approach 1:
The patent segments the device into essential elements (sensor, transceiver) and non-essential elements (image processor, display). The power controller selectively activates only the essential elements when events are detected, while keeping non-essential elements in a low-power deactivated state. This segmentation allows the device to maintain reliable event detection and transmission capability while significantly reducing overall power consumption during idle periods.
Solution Approach 2:
The patent implements dynamic power management where the power controller adjusts the operational state of different device elements based on real-time event detection. When events are detected, the sensor and transceiver are activated; when no events occur, non-essential elements are deactivated. This dynamic state adjustment resolves the contradiction by adapting power consumption to actual operational needs rather than maintaining constant power supply.
2Use of energy by moving object
If the image processing device waits for external signals to process events, then power consumption is reduced, but latency occurs until data is processed and transmitted
Solution Approach 1:
The patent applies preliminary action by having the sensor continuously monitor for events and the transceiver remain in a low-power ready state capable of immediate transmission. When an event is detected, the essential elements are already positioned to act immediately, minimizing latency. The sensor detects events proactively rather than waiting for external queries, and the transceiver is pre-configured to transmit upon event occurrence, eliminating the need to wait for external signals while maintaining low power consumption.
3Ease of operation
If all elements of the camera are activated continuously, then the device is ready for immediate operation, but power consumption increases
Solution Approach 1:
The patent divides camera elements into two categories: essential elements (sensor, transceiver) that must remain ready for event detection and transmission, and non-essential elements (image processor, display) that can be deactivated. The power controller manages this segmentation by activating only essential elements when needed, maintaining device readiness for critical functions while reducing power consumption through deactivation of non-essential elements during idle periods.
Solution Approach 2:
The patent applies local quality by differentiating the operational requirements of different device components. The sensor and transceiver maintain high operational quality (activated state) when events are detected, while non-essential elements enter a low-power state. This localized quality differentiation ensures that critical functions remain fully operational when needed, while allowing non-critical functions to reduce power consumption during normal operation.
Data Source
AI summary
Provided is an image processing device which includes: an event detector configured to detect a first event occurring at the AP by analyzing a response signal which the AP transmits to a transceiver of a camera in response to a query signal transmitted from the transceiver to the AP; and a power controller configured to place a sensor, the transceiver and a plurality of other elements constituting the camera in an activated state, in response to the event detector detecting the first event, wherein the power controller places the other elements in a deactivated state while at least one of the sensor and the transceiver is in the activated place, unless the first event is detected by the event detector, a second event is detected by the sensor, or a predetermined setting is provided.