Wireless Switch Test Data Logging for Low-Voltage Breakers
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Solution Overview
Problem
Existing low-voltage switches, such as circuit breakers and fire safety switches, lack the capability for wireless communication, making it difficult to efficiently conduct and analyze functional tests, particularly residual current and insulation resistance measurements.
Innovation Solution
A switch arrangement comprising a switch and an add-on module that enables wireless communication, allowing data from functional tests to be stored and transmitted using Zigbee protocol, with data logging and retrieval via proprietary commands, and a terminal device app for data export.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication capability is added to switches, then data transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The system is segmented into three distinct components: the switch unit that performs testing and stores data, the data collector that manages data aggregation and protocol conversion, and the terminal device that presents data to users. This segmentation allows wireless communication capabilities to be added without complicating the switch itself, as the communication functionality is distributed across dedicated components.
Solution Approach 2:
The data collector serves as an intermediary between the switch and the terminal device. It receives test data from the switch via wireless communication, processes and stores the data, and communicates with the terminal device through a user-friendly interface. This intermediary approach enables efficient data transmission while keeping the switch design relatively simple.
2Productivity
If automated test data logging is implemented, then analysis efficiency is improved, but device complexity increases
Solution Approach 1:
The switch unit automatically performs test functions and logs data to its internal memory without requiring manual intervention. This preliminary automated data collection prepares the information in advance, allowing efficient subsequent analysis through wireless retrieval by the data collector and terminal device, thereby improving analysis efficiency while maintaining relatively simple device architecture.
3Adaptability or versatility
If multiple wireless communication protocols are supported, then adaptability is improved, but device complexity increases
Solution Approach 1:
The data collector acts as a protocol intermediary that supports multiple wireless communication protocols including Zigbee, Bluetooth, and Wi-Fi. Instead of requiring the switch to support multiple protocols directly, the data collector handles protocol conversion and communication management, enabling broad adaptability while keeping individual device complexity manageable.
Solution Approach 2:
The data collector is designed with universal communication capabilities to work with various wireless protocols and different terminal devices. This multi-functional approach allows the system to adapt to different communication environments without requiring each component to be overly complex.
Data Source
AI summary
A switch arrangement contains a switch and is configured to perform a test directed to an aspect of the functionality of the switch, to store data relating to the performed test in a local memory apparatus and to respond to a request for data pertaining to one or more performed tests that is transmitted by use of a first protocol for wireless communication by transferring data pertaining to performed tests, which data are stored in the memory apparatus, by one or more messages to a receiver specified by the request. The test permits improved and more efficient analysis of the behavior of switches.