Shelf interactive power control circuit
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Solution Overview
Problem
Existing merchandise monitor systems consume excessive power as sensors continuously monitor inventory zones, even when no products are added or removed, leading to inefficient power usage.
Innovation Solution
A shelf interactive power control circuit comprising a power source, status sensor, status detection circuit, switch, and control signal detection circuit, which activates power only when product status changes are detected, reducing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors continuously monitor inventory zones periodically, then product quantity detection reliability is improved, but power consumption increases
Solution Approach 1:
The system transitions from continuous periodic sensing to event-triggered sensing. The status detection circuit activates sensors only when a status change event occurs (product added or removed), rather than continuously periodic monitoring. This event-driven approach maintains detection reliability while dramatically reducing power consumption during stable inventory states.
Solution Approach 2:
The status detection circuit autonomously monitors for status changes and automatically activates/deactivates sensors without continuous external control. The system self-regulates power consumption by detecting inventory status changes and triggering sensor activation only when necessary, eliminating the need for continuous periodic sensing cycles.
2Speed
If sensors are kept turning on to detect product status changes, then detection responsiveness is improved, but power consumption increases
Solution Approach 1:
Instead of continuous operation, the system uses event-triggered activation where sensors are turned on only when status changes occur. The status detection circuit continuously monitors for events and activates sensors at these discrete moments, maintaining responsiveness to inventory changes while avoiding continuous power consumption.
Solution Approach 2:
The sensor system transitions from a static continuous-on state to a dynamic on-demand state. Sensors are activated only when the status detection circuit detects a product status change event, allowing the system to adapt power consumption dynamically based on actual inventory conditions rather than maintaining constant operation.
3Productivity
If continuous sensing is used to monitor inventory zones, then product management efficiency is improved, but energy waste increases
Solution Approach 1:
The status detection circuit autonomously determines when sensing is necessary by monitoring for status change events. The system self-regulates by activating sensors only when inventory status changes occur, eliminating unnecessary sensing operations and associated energy waste while maintaining effective product management through event-driven detection.
Solution Approach 2:
The system extracts and removes unnecessary continuous sensing operations, keeping only the essential event-triggered sensing functionality. By taking out the redundant continuous monitoring portion and retaining only the status-change-detection capability, the system maintains product management efficiency while eliminating associated energy waste.
Data Source
AI summary
A shelf power control circuit includes a power source, a status sensor, a status detection circuit, a switch, and a control signal detection circuit. The power source is used to supply power, and the status sensor is used to detect a status change of products on a shelf. The status detection circuit is coupled to the status sensor and the power source for generating an enabling signal when the status sensor detects the status change of the products. The switch is coupled to the power source and the status detection circuit for being turned on when receiving the enabling signal and turned off when receiving a disabling signal. The control signal detection circuit is coupled to the switch for generating the disabling signal when the control signal detection circuit is turned on.