Sensing Node Scheduling via Uncertainty Prediction

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Solution Overview

Problem

Traditional monitoring techniques for large areas using mobile sensors are inefficient due to manual, biased allocation of drones, leading to over-examination of important areas and under-examination of less important ones, and slow adaptation to changing conditions.

Innovation Solution

A method and system that employ sensing platform nodes to collect data from sub-areas, utilize a prediction model to analyze data predictability and calculate future data uncertainty, and schedule node observations based on this uncertainty to optimize information gain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual allocation of sensing platforms is used based on domain knowledge, then critical areas can be observed more regularly, but the system is slow to adapt to changing conditions and requires continuous manual oversight

Engineering Contradiction:
Improveadaptability to changing conditionsVSAvoidmanual oversight requirement
Core Design Contradiction:
Adaptability or versatilityVSExtent of automation

Solution Approach 1:

The system employs autonomous sensing platform nodes that automatically adjust their observation schedules based on real-time uncertainty calculations and predictability analysis, eliminating the need for continuous manual allocation decisions while adapting to changing conditions

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements closed-loop feedback by continuously calculating measurement uncertainty and data predictability, then using this information to dynamically adjust observation schedules, enabling automatic adaptation to changing monitoring conditions

Inventive Principle:
Principle #23Feedback

2Reliability

If periodic checking of sub-areas is used to guarantee maximum observation age, then all areas receive regular attention, but critical areas are not observed more frequently despite higher risks or change dynamics

Engineering Contradiction:
Improvemaximum observation age guaranteeVSAvoidinformation freshness in critical areas
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system applies different observation frequencies and uncertainties to different sub-areas based on their specific characteristics, allowing critical areas with high uncertainty to be monitored more frequently while maintaining acceptable observation ages for less critical areas

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically changes the observation parameters (frequency, duration) of sensing platform nodes based on calculated measurement uncertainty and data predictability, increasing observation intensity in areas where information degrades quickly

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If a fixed fleet of sensing platforms is used to cover large areas, then resource allocation is constrained, but the ability to respond to changing conditions and prioritize critical areas is reduced

Engineering Contradiction:
Improvenumber of sensing platformsVSAvoidinformation collection efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The system enables dynamic allocation of a fixed fleet of sensing platforms by allowing nodes to autonomously adjust their trajectories, observation frequencies, and停留 durations based on real-time uncertainty calculations, maximizing information collection efficiency without requiring additional resources

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10531049B2Methods and systems for scheduling of sensing platform nodes
Publication Date: 2020.01.07 NEC CORP
  • US10531049B2 patent drawing
  • US10531049B2 patent drawing
  • US10531049B2 patent drawing

AI summary

A method for observing a predetermined monitoring area, wherein one or more sensing platform nodes are employed to observe a predetermined number of sub-areas of the monitoring area, includes observing the sub-areas of the monitoring area using the sensing platform nodes so as to collect measuring data for the sub-areas. A prediction model is provided for analyzing predictability of measuring data for the sub-areas based on the collected measuring data. Future measuring data is calculated for the sub-areas and uncertainty of the future measuring data over time is calculated using the prediction model. The sensing platform nodes are scheduled for observation of the sub-areas according to a scheduling mechanism. The scheduling of the sensing platform nodes is dependent on the calculated uncertainty of the future measuring data predicted for the sub-areas.