Geo-Tag Proximity Handover for Faraday Cage Tracking
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Solution Overview
Problem
The high electrical energy consumption for geo-tags in proximity to Faraday cages, such as metal containers, due to repeated attempts to transmit location data, leads to rapid battery drain, hindering the expansion of IoT objects.
Innovation Solution
A method where geo-tags detect proximity and delegate location management to a higher category tag, typically one outside the Faraday cage, reducing energy consumption by transitioning to a standby state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If geo-tags repeatedly attempt to transmit location data to the server, then location tracking reliability is improved, but electrical energy consumption increases rapidly
Solution Approach 1:
The patent combines the location management functions of multiple geo-tags into a single representative tag. When geo-tags detect proximity to each other, they merge their location transmission responsibilities, with one tag acting as the representative that transmits location data for all tags in the group, thereby reducing redundant energy consumption while maintaining tracking reliability
Solution Approach 2:
The patent introduces an intermediary mechanism where geo-tags communicate proximity information and delegate location management responsibilities to each other. This intermediary coordination allows tags to collectively manage their location data transmission, avoiding individual tags repeatedly attempting independent transmissions that would waste energy
2Adaptability or versatility
If geo-tags are placed inside metal containers, then object containment is improved, but transmission capability deteriorates due to Faraday cage effect
Solution Approach 1:
The patent uses the metal container itself as an intermediary element. Instead of treating the Faraday cage effect as a complete barrier, the system leverages the container's presence as a signal for tags to adopt alternative transmission strategies, such as waiting for external opportunities or using the container's metadata to infer location information
Solution Approach 2:
The patent changes the operational parameters of geo-tags based on environmental detection. When tags detect they are inside a metal container, they modify their transmission behavior by reducing active transmission attempts and instead relying on proximity-based coordination with other tags, adapting to the constrained electromagnetic environment
3Ease of operation
If each geo-tag manages its own location transmission independently, then operational simplicity is maintained, but energy consumption increases due to redundant operations
Solution Approach 1:
The patent merges the independent location management operations of multiple geo-tags into a coordinated collective operation. Tags detect proximity and combine their transmission efforts, with one tag serving as the representative that handles location data transmission for the entire group, eliminating redundant energy consumption while maintaining simple operational logic through automatic proximity-based coordination
Data Source
AI summary
A method for managing transmission of a location of a first geo-tag capable of communicating with a second geo-tag, the tags being classified in several respective categories, the first tag being associated with a first category. The method includes implementing following steps in the first tag: a. detecting a proximity between the first geo-tag and the second geo-tag; b. obtaining the category associated with the second tag; c. transmitting, to the second tag, a request to transfer management of the transmission of the location of the first tag, if the obtained category belongs to a second tag category.