Dynamic Sensor Data Collection Frequency Adjustment
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Solution Overview
Problem
Current data collection systems face limitations in flexibility and efficiency due to high network bandwidth and storage space requirements, as most data collected by sensors is not needed, and data collection frequency is fixed, making it inadequate for analysis during events.
Innovation Solution
A system comprising a server, gateway, and sensor that adjusts data collection frequency by transmitting sensor data at a low frequency under normal conditions and switching to a higher frequency when an alert event is detected, allowing for historical data analysis, with the gateway storing data in a buffer and the server using an alert event data frequency profile to increase data capture and transmission during specific time ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data collection frequency is increased to capture more data for analysis, then measurement precision and diagnostic capability are improved, but network bandwidth consumption and storage space requirements increase
Solution Approach 1:
The patent implements dynamic data collection frequency adjustment where the sampling rate changes based on system state. During normal operation, data is collected at a low frequency (first frequency), but when an alert event is detected, the frequency automatically increases to a higher rate (second frequency) to capture detailed event characteristics for diagnosis
Solution Approach 2:
The system changes the parameter of data collection frequency based on operational conditions. The controller adjusts the sampling frequency parameter from a baseline first frequency to a higher second frequency when alert events occur, allowing optimized resource utilization while maintaining diagnostic capability when needed
2Quantity of substance
If data collection frequency is reduced to save network bandwidth and storage space, then resource consumption is decreased, but the ability to capture and analyze event data is worsened
Solution Approach 1:
The system employs periodic data collection at a low first frequency during normal conditions to minimize resource usage. When an alert event is detected, the system transitions to a higher second frequency specifically during the event period, ensuring critical data is captured without continuously high resource consumption
Solution Approach 2:
The gateway pre-stores historical sensor data in its buffer before events occur. When an alert event is detected, the system can immediately retrieve and transmit relevant historical data at high frequency without needing to continuously collect and store all data, thus preserving event analysis capability while reducing overall storage requirements
3Device complexity
If fixed data collection frequency is used to simplify system design, then device complexity is reduced, but adaptability to different operational conditions is worsened
Solution Approach 1:
The system implements a feedback mechanism where the detection of alert events triggers automatic adjustment of data collection frequency. The controller monitors sensor data for alert conditions and dynamically adjusts the sampling rate accordingly, providing adaptability while maintaining relatively simple system architecture through event-driven control logic
Data Source
AI summary
The present disclosure provides a system and a method of adjusting data collection frequency. the system includes a server, a gateway and a sensor. The gateway is communicated with the server for data transmission. The sensor is configured to transmit the sensor data to the gateway, wherein the gateway transmits the sensor data to the server based on a first frequency, and is triggered to transmit the sensor data and a historical sensor data based on a second frequency in case the server or the gateway detects an alert event when processing the sensor data, wherein the historical sensor data is related to the alert event, so that the server analyzes the historical sensor data to get a diagnostics on the alert event, wherein the second frequency is higher than the first frequency.