Electric Meter Reading Prioritization via Response Rate Classification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In Power Line Communications (PLC) networks, especially in Automated Meter Management (AMM) systems, the current method of accessing the medium using CSMA/CA protocols leads to significant contention time, slowing down information reading from electricity meters, as each device listens for availability and may collide with others, necessitating a method to minimize contention time while being simple and cost-effective.
Innovation Solution
A method where electricity meters are classified into groups based on previous data collection status and response rates, with a list of meters prioritized by transmission risk, allowing for efficient information retrieval by minimizing collisions through strategic ordering and updating based on response times and network topology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If CSMA/CA protocol is used for medium access, then devices can autonomously transmit data, but contention time increases significantly slowing down information reading
Solution Approach 1:
The patent segments the set of electricity meters into multiple classes based on their response rates to requests. This segmentation allows the system to prioritize meters with higher response rates, reducing the overall contention time by processing responsive meters first before moving to less responsive ones.
Solution Approach 2:
The patent performs preliminary classification of meters into different classes before the actual data reading process. By pre-identifying and prioritizing meters with higher response rates, the system prepares an optimized reading sequence in advance, minimizing contention time during the actual data collection phase.
2Reliability
If TDM method is used to avoid simultaneous transmission, then transmission collisions are reduced, but synchronization of all meters is required
Solution Approach 1:
Instead of synchronizing all meters simultaneously as in TDM, the patent segments meters into classes and processes them in priority order. This segmentation approach reduces transmission collisions by staggering the reading of different meter classes, eliminating the need for complex global synchronization while maintaining reliable transmission.
Solution Approach 2:
The patent applies different reading strategies to different classes of meters based on their local characteristics (response rates). Rather than imposing a uniform synchronization requirement on all meters, the system adapts the reading approach to each meter class, reducing complexity while maintaining transmission reliability.
3Device complexity
If all meters are read without distinction, then simplicity is maintained, but reading speed decreases due to increased contention time
Solution Approach 1:
The patent segments meters into classes based on response rates, creating a prioritized reading list. This segmentation enables faster reading by processing high-response meters first, improving overall productivity while maintaining relative simplicity through automated classification and list management.
Solution Approach 2:
The patent changes the parameter of meter prioritization by classifying meters according to their response rates. By dynamically adjusting the reading sequence based on this parameter, the system improves reading speed without requiring complex manual configuration, maintaining operational simplicity while enhancing productivity.
Data Source
AI summary
Electric meters are connected by an electricity supply network to a data concentrator with which the meters communicate by powerline. A method for reading information from meters is based on a classification of the meters in a plurality of classes. A first class, read first, groups together meters that haven't been read in a last execution of the method. The other classes group together the meters according to a rate of response to requests for information coming from the concentrator. The classes grouping together the meters that have the lowest response rates are read last. In each class, each meter is classified according to information representing a topology of the network having an influence on the failure risk of the transmissions of information by the meter. The concentrator accounts for the classification of the meters when the meters in the network are read to reduce occurrences of periods of contention.