DC-Powered Device Controller Voltage Interval Adaptation
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Solution Overview
Problem
Existing DC-powered device controllers do not effectively utilize lower voltage DC power for driving limited operation of electrical loads, as they typically require a specific operational voltage interval and do not leverage the limited availability of lower voltage power for extended periods.
Innovation Solution
A DC-powered-device controller that includes a DC-power unit, a DC-voltage monitoring unit, a mark-event timer unit, and a control unit, which enables the delivery of DC power to an electrical load when the voltage falls within a mark-event voltage interval if the lower voltage is available for a predetermined duration, allowing for limited operation modes beyond traditional operational voltage intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the controller only accepts DC power within the operating voltage interval, then the reliability of power delivery is ensured, but the adaptability to different voltage conditions is reduced
Solution Approach 1:
The controller dynamically adjusts its operational state based on voltage conditions. It transitions between standby mode (when voltage is in mark-event interval) and operational mode (when voltage is in operating interval), allowing it to adapt to varying voltage conditions while maintaining reliability through controlled transitions.
Solution Approach 2:
The controller monitors voltage parameter changes and responds to transitions between voltage intervals. By detecting when voltage enters or leaves the mark-event voltage interval and measuring the duration, the controller changes its operational parameters to either accept or reject power delivery based on the extended mark condition.
2Use of energy by moving object
If the controller utilizes lower voltage DC power for extended periods, then the energy efficiency is improved, but the risk of electrocution from prolonged low-voltage power delivery increases
Solution Approach 1:
The controller performs preliminary detection and classification before enabling power delivery. It first detects the mark-event voltage interval, then measures the duration to determine if it exceeds the threshold, and only then enables power delivery. This preliminary action sequence ensures safety by verifying extended mark condition before allowing low-voltage power delivery.
Solution Approach 2:
The controller continuously monitors the voltage interval and provides feedback on the duration of mark-event conditions. This feedback mechanism allows the controller to make informed decisions about power delivery, enabling energy-efficient operation when conditions are met while preventing harmful power delivery when conditions are not satisfied.
3Power
If the controller performs classification procedure to determine power requirements, then the power delivery accuracy is improved, but the time required for power delivery is increased
Solution Approach 1:
The classification procedure is performed as a preliminary action during the extended mark event period. The controller uses the time available during the mark-event voltage interval to determine power requirements before full power delivery begins, ensuring accurate power delivery without delaying the start of operational power supply.
Data Source
AI summary
A DC-powered device controller (101), comprising a DC-power unit (102) configured to be electrically connected via a wired power line (105) to an external DC-power supply device (104), a control unit (112) connected with the DC-power unit and configured to receive from a DC-voltage monitoring unit (108) response signals indicative of a current voltage amount of the DC-power and to receive, from a mark-event timer unit (110), an extended-mark-time signal when a measured mark-event time exceeds a predetermined mark-event duration threshold, and to enable delivery of the currently received DC-power to an external electrical load unit (106) in event of either one of a) detecting that the current response signal is indicative of the currently received voltage amount falling into an operating voltage interval, and b) detecting that the extended-mark-time signal has been received.