Peer Controller Event Filtering in Sensor Networks
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Solution Overview
Problem
In tag identification systems, multiple antenna/readers often transmit duplicate data when monitoring the same event, leading to network overload and inefficient processing, as there is no effective communication between edge controllers to filter out redundant information.
Innovation Solution
Establishing peer edge controllers in a spatial region of a sensor network, where each controller is informed of others in the region, allowing for peer-to-peer communication to filter out duplicate events and prevent multiple processing of the same event by reporting unique events to a higher processing domain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna/readers monitor the same spatial region, then event detection coverage is improved, but network traffic and processing overhead increase due to duplicate data transmission
Solution Approach 1:
The patent merges duplicate event data from multiple controllers monitoring the same spatial region by establishing peer-to-peer communication between controllers. When a controller detects an event, it notifies peer controllers, which then suppress duplicate transmissions to higher domains, combining the monitoring efforts into a single effective report.
Solution Approach 2:
The patent introduces an intermediary notification mechanism where controllers act as mediators for each other. When Controller A detects an event, it sends a notification to peer Controllers B and C, which then use this information to suppress their own duplicate reports, effectively using each controller as an intermediary to prevent redundancy.
2Reliability
If multiple controllers independently report events to higher domains, then event detection reliability is improved, but processing overhead at higher domains increases
Solution Approach 1:
The patent applies preliminary action by having controllers exchange event information with peer controllers before reporting to higher domains. This pre-communication allows controllers to identify and suppress duplicate events in advance, so only unique events reach higher domains, reducing their processing overhead while maintaining detection reliability.
Solution Approach 2:
The patent implements a feedback mechanism where peer controllers provide information back to each other about detected events. When Controller A detects an event, it receives feedback from peer Controllers B and C indicating whether they have also detected the same event, allowing Controller A to suppress duplicate reports based on this feedback information.
3Productivity
If peer controllers communicate to filter duplicate events, then network efficiency is improved, but controller communication complexity increases
Solution Approach 1:
The patent segments the communication task by dividing controllers into peer groups based on spatial regions. Each controller only communicates with its designated peer controllers rather than all controllers in the system, segmenting the communication complexity into manageable regional pairs while maintaining overall network efficiency.
Data Source
AI summary
In a wireless tag identification and processing architecture and infrastructure, a method and system that eliminates redundant reporting and processing of the same event observed by different reader/sensors. Reader/sensors and their respective connected controllers are configured as peers when they observe or cover the same spatial region. When an event is observed within the spatial region, the first controller to receive the event data reports the electronic tag data and event data to the next higher processing domain and to its peer controllers. Then when the same electronic tag data or other event data indicating that a subsequent event is actually the same event as observed earlier is received by another peer controller, the another peer controller does not report nor process the electronic tag data and other event data to the next higher processing domain or to its peer controllers.