Motion-Sensing Display Device with Periodic Power Management
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Solution Overview
Problem
Existing automated shelf-display devices lack accurate person presence sensing, require external power sources, and are not optimized for power conservation, making them inefficient and costly to update without network systems.
Innovation Solution
A standalone, automated video display device with consumer sensing activation, integrated power management, and programmable operating system, using motion sensors and internal power sources like batteries, allowing for efficient power usage and local content updates without external infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If motion sensors and consumer sensing activation are implemented, then the device can automatically detect and respond to consumer presence, but the device complexity increases
Solution Approach 1:
The display device automatically detects consumer presence through motion sensors and activates content playback without requiring manual intervention. The system self-manages power states, transitioning between sleep and active modes based on detected motion, thereby reducing operational complexity while maintaining automation.
Solution Approach 2:
The device employs periodic motion sensing intervals to detect consumer presence, activating the display only when motion is detected and returning to sleep mode after a set period of inactivity. This periodic operation reduces overall system complexity by limiting active sensing and display operations to necessary time windows.
2Adaptability or versatility
If the device uses internal power sources like batteries, then dependency on external power sources is reduced, but the duration of action is limited by battery capacity
Solution Approach 1:
The display device operates in periodic cycles, remaining in low-power sleep mode and activating only when consumer presence is detected. This intermittent operation pattern significantly extends battery life by minimizing active power consumption while maintaining the ability to respond to consumers throughout extended periods.
Solution Approach 2:
The system dynamically adjusts power consumption parameters by transitioning between different operational states (sleep mode with minimal power draw versus active display mode with higher power draw). This parameter adjustment allows the device to maximize operational duration on internal battery power while maintaining functionality when needed.
3Loss of energy
If power management features are implemented to conserve power, then energy efficiency is improved, but the device complexity increases
Solution Approach 1:
The power management system uses feedback from motion sensors to automatically control power state transitions. When motion is detected, the system activates the display; when no motion is detected for a predetermined period, the system enters sleep mode. This feedback-based control achieves power conservation through relatively simple binary state transitions rather than complex continuous control.
Solution Approach 2:
The device implements periodic power management by cycling between sleep and active states based on detected consumer presence. This periodic operation pattern conserves energy by limiting active power consumption to only when necessary, achieving efficient power management through temporal separation of high and low power states rather than through complex continuous power regulation.
4Ease of manufacture
If the device requires a network system for content updates, then content distribution is centralized, but the device complexity and operational costs increase
Solution Approach 1:
The content update system is segmented into portable, removable storage media that can be independently handled and distributed. Instead of requiring centralized network infrastructure, content is distributed through separate physical or digital media that can be transferred to individual devices, eliminating the need for complex network systems while maintaining centralized content control capabilities.
Solution Approach 2:
A portable storage medium serves as an intermediary between content sources and the display device. This intermediary allows content to be transferred without requiring direct network connectivity between the display device and content management systems, thereby reducing device complexity and eliminating dependency on continuous network infrastructure while still enabling content distribution and updates.
Data Source
AI summary
A self-powered video display device provides an automated point of purchase advertising display that includes a motion sensing feature, a power management function to manage power usage depending on sensed motion, and a readily programmable and re-programmable operating system. The display device is updated through the connection of a memory card or handheld computer and the transfer of video files over the connection.