Radio System Routing for Building Control Reliability
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Solution Overview
Problem
Existing building control systems face challenges in achieving reliable wireless radio communication due to limited communication range and the difficulty in installing wired bus lines, which affects the reliability and quality of data transmission between terminals.
Innovation Solution
A method for installing a radio system that evaluates and optimizes radio links based on criteria such as the number of hops, unique individual sections, communication quality, and availability of sections to determine the most reliable routes, using a routing table to store and update the best routes between terminals, ensuring maximum reliability and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a wireless radio system is used instead of wired bus lines, then ease of installation is improved, but communication reliability deteriorates due to limited communication range and signal quality issues
Solution Approach 1:
The patent applies preliminary action by evaluating and determining the quality of individual radio link sections before establishing the complete routing. The system proactively identifies reliable sections and constructs routes from these pre-evaluated segments, ensuring communication reliability is built into the network architecture from the start rather than being retroactively addressed.
Solution Approach 2:
The patent segments the wireless network into individual radio link sections between neighboring terminals. Each section is independently evaluated for quality, and routes are constructed by combining these segmented sections. This segmentation allows the system to identify and avoid poor-quality links while maintaining ease of wireless installation.
2Adaptability or versatility
If routes with more hops are used to provide alternative paths, then route redundancy is improved, but communication quality deteriorates due to increased signal transmission points
Solution Approach 1:
The patent changes the evaluation parameter from simply counting the number of hops to assessing the quality of individual radio link sections. Routes are selected based on the cumulative quality of their constituent sections rather than minimizing hop count alone. This parameter change allows the system to prefer fewer hops when quality is comparable, but accept more hops when individual section quality is high, thereby maintaining communication quality while providing route redundancy.
3Reliability
If the number of evaluation criteria for route selection is increased, then route optimization is improved, but system complexity deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-evaluating and storing the quality characteristics of individual radio link sections before route selection. This pre-computation of section qualities simplifies the actual route selection process, as the controller only needs to combine pre-evaluated sections rather than performing complex real-time evaluations of multiple criteria for each possible route.
Solution Approach 2:
The patent applies local quality by evaluating each individual radio link section independently for its specific quality characteristics. Each section's quality is determined locally and stored, then these local quality assessments are combined to determine overall route quality. This approach manages system complexity by breaking down the evaluation into manageable local units rather than requiring global optimization across all possible routes simultaneously.
Data Source
AI summary
A radio system is installed in a building, wherein each terminal (T) communicates with neighboring terminals and can transmit telegrams. The terminals (T) are contained in devices or installed as separate mobile terminals. A routing table is created, in which each acceptable route from a source (Q) to a destination (Z) is entered. Connection from source to destination is evaluated with consideration of the number of hops from terminal to terminal within a route, and of the availability of unique individual sections (SES) that cannot be replaced by a parallel path.