Dynamic Data Routing in Power Line Communication Networks
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Solution Overview
Problem
Power line communication networks face reliability issues due to varying electrical and physical characteristics, leading to data transmission disruptions during maintenance or critical events, resulting in short outages that can cause loss of data for extended periods.
Innovation Solution
A system that includes data collectors and substation processing units, which use broadcast messages to dynamically route data through multiple available paths by encoding unique identifiers for network elements, allowing end points to select the best transmission path based on signal characteristics, ensuring continuous data reporting even during network outages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted through a designated channel in a power line communication network, then the transmission path is simple and stable, but the reliability decreases when the channel is disabled due to maintenance or critical events
Solution Approach 1:
The patent implements dynamic routing where end points can switch between a designated primary substation processing unit and alternative substation processing units based on channel availability. The system monitors channel status and dynamically reconfigures data transmission paths, allowing the network to adapt to changing conditions rather than following a fixed routing structure.
Solution Approach 2:
The system changes the routing parameter (selected substation processing unit) based on channel status. When the primary channel becomes unavailable, the end point changes its transmission target to an alternative substation processing unit, effectively using parameter substitution to maintain data flow despite channel disruptions.
2Reliability
If a fixed pairing between end points and substation processing units is used, then the network configuration is simple, but data loss occurs during network outages
Solution Approach 1:
The end point automatically performs self-service by monitoring channel status and independently selecting alternative substation processing units when needed. The system does not require manual reconfiguration or external intervention during outages - the end point autonomously detects channel failures and switches to backup paths, maintaining continuous data transmission without human assistance.
Solution Approach 2:
The system implements feedback mechanisms where the end point continuously monitors the status of its communication channel with the designated substation processing unit. When channel quality deteriorates or transmission fails, this feedback triggers automatic switching to alternative substation processing units, creating a closed-loop control system that maintains reliable data transmission.
3Reliability
If multiple alternative transmission paths are available, then data transmission reliability improves during outages, but the complexity of detecting and selecting the best path increases
Solution Approach 1:
Instead of continuously monitoring and evaluating all possible transmission paths, the system implements partial monitoring by focusing on the primary designated channel and having ready access to a limited set of pre-identified alternative substation processing units. This approach provides sufficient reliability improvement without the excessive complexity of comprehensive multi-path optimization.
Data Source
AI summary
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for. In one aspect, a method includes detecting, by an end point, a first broadcast message specifying a first network identifier for a first PLC network and a first unique substation identifier for a first substation processing unit that belongs to the first PLC network. Data is encoded with the first network identifier and the first unique substation identifier and the encoded first data is transmitted to the first substation processing unit.