Modbus Data Processing for High-Voltage Electrical Monitoring
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Solution Overview
Problem
Existing data acquisition devices for monitoring high-voltage electrical systems, such as surge arresters and gas-insulated switchgear, have limited input capacity and communication options, restricting comprehensive and efficient remote monitoring capabilities.
Innovation Solution
A data processing arrangement that utilizes Modbus protocols for sensor data acquisition, wireless communication, and centralized processing, enabling efficient data transmission to servers or network control centers, with adjustable sampling rates and timestamps for precise monitoring and fault detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional data acquisition devices are used for monitoring high-voltage electrical systems, then device simplicity and ease of operation are maintained, but data acquisition capacity and monitoring comprehensiveness are limited
Solution Approach 1:
The system divides the data acquisition and processing function into two separate components: a simple input device for data collection and a separate computer system for processing and analysis. This segmentation allows the input device to remain simple while the overall system achieves high data acquisition capacity through the computer system's processing capabilities.
Solution Approach 2:
The input device is designed with universal communication capabilities supporting multiple protocols (Modbus RTU, Modbus ASCII, Modbus TCP) and various input types (analog, digital, cable connections). This multi-functionality enables a single device type to handle diverse monitoring requirements without increasing complexity.
2Reliability
If more sensors and inputs are added to monitor all electrical systems, then monitoring comprehensiveness improves, but data transmission volume and processing requirements increase
Solution Approach 1:
The patent extracts the data processing and analysis functions from the input device and places them in a separate computer system. This extraction allows the input device to focus solely on reliable data collection while the computer system handles the complex processing of large data volumes, preventing information loss through dedicated processing capabilities.
Solution Approach 2:
The computer system acts as an intermediary between the multiple input devices and the final monitoring output. It receives data from various sources, processes and correlates the information, and generates comprehensive monitoring results, thereby managing large data volumes efficiently while maintaining monitoring reliability.
3Measurement precision
If high-frequency sampling is used to capture all system variations, then measurement precision improves, but data transmission load and energy consumption increase
Solution Approach 1:
The system dynamically adjusts the sampling frequency based on the specific monitoring requirements of different electrical systems. The computer system can vary the sampling rate to match the actual system behavior, using higher rates only when necessary to capture critical variations, thereby maintaining measurement precision while optimizing energy consumption.
Solution Approach 2:
The patent implements variable sampling parameters that can be changed based on system conditions and monitoring needs. By adjusting the sampling frequency and data transmission intervals, the system maintains high measurement precision when needed while reducing energy consumption during normal operation, resolving the contradiction between precision and energy use.
Data Source
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AI summary
The invention relates to a data processing arrangement (1), having - a plurality of input devices (3, 4, 5, 6, 7, 8) for detecting sensor measurement data of electrical systems (31), - a computer device (9) for processing the sensor measurement data, - at least one communication device (11, 12, 13, 14) for transmitting the processed sensor measurement data, characterized in that at least one input device (6) is designed for detecting modbus signals. The present invention further relates to a corresponding data processing method.