Multi-hop Hazard Reporting Connection Quality Assessment

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Solution Overview

Problem

Radio-operated multi-hop hazard reporting systems face challenges in assessing communication connection quality between secondary stations and the main station, particularly in ensuring communication security and fault tolerance, as existing methods require complete system topology knowledge and resource-intensive calculations.

Innovation Solution

A method that assesses communication connection quality by determining local and adjacency-based parameters, allowing each secondary station to evaluate its connectivity to the main station without needing a complete system image, using data exchange with immediate neighbors to iteratively adapt parameter values and classify connection status into 'red', 'amber', or 'green' states, enabling resource-efficient and fault-tolerant communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If complete system topology knowledge is used for connection quality assessment, then measurement precision is improved, but device complexity and resource consumption increase

Engineering Contradiction:

Improveconnection quality assessment accuracyVSAvoidsystem topology knowledge requirement

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the connection quality assessment into two independent parameters: first parameter indicating connection security only between the selected secondary station and main station, and second parameter indicating connection security only between directly adjacent secondary stations and main station. This segmentation allows each parameter to be determined using limited local information rather than requiring complete system topology knowledge, thereby reducing device complexity while maintaining assessment capability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by determining parameter values based on local information available at each secondary station. The first parameter reflects local connection quality between the station and main station, while the second parameter reflects local connection quality with adjacent stations. This local approach eliminates the need for global topology knowledge, reducing computational resources and device complexity

Inventive Principle:

Principle #3Local quality

2Measurement precision

If complete system topology knowledge is used for connection quality assessment, then measurement precision is improved, but use of energy increases

Engineering Contradiction:

Improveconnection quality assessment accuracyVSAvoidcomputational resource consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

By segmenting the assessment into two parameters determined from local information, the patent avoids energy-intensive calculations required for complete topology analysis. Each parameter can be computed independently using only locally available data, significantly reducing computational burden and energy consumption

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent determines parameter values using only local information at each secondary station, eliminating the need for energy-consuming global system analysis. The first parameter uses local connection data, and the second parameter uses local adjacency data, both obtainable without extensive computational resources

Inventive Principle:

Principle #3Local quality

3Reliability

If complete system initialization is performed, then reliability is improved, but loss of time increases

Engineering Contradiction:

Improvecommunication connection qualityVSAvoidsystem initialization time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent enables secondary stations to perform preliminary connection quality assessment using locally available information before complete system initialization is finished. Each station can independently determine its first and second parameters and assess connection quality without waiting for global system setup, reducing initialization time while maintaining reliable assessment capability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Each secondary station performs self-service by independently determining its own connection quality parameters using local information. Stations do not need to wait for centralized system initialization or global topology discovery, enabling immediate local assessment and reducing overall system initialization time

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8264980B2Quality assessment of a communication connection in a radio-operated multi-hop hazard reporting system

Publication Date: 2012.09.11 SIEMENS SCHWEIZ AG

AI summary

A method determines a quality of a communication connection between a selected secondary station and a main station of a radio-operated multi-hop hazard reporting system. The method includes the determination of a value of a first parameter for the selected secondary station, the value of the first parameter is indicative of the connection security only between the selected secondary station and the main station. The method further includes a determination of a value of a second parameter for the selected secondary station, wherein the value of the second parameter is indicative of the connection security only between any directly adjacent secondary stations of the selected secondary stations and the main station, and a determination of the quality of the communication connection based only on the value of the first parameter and the value of the second parameter.