Gas Meter Selective Data Storage for Power Reduction
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Solution Overview
Problem
Conventional gas meters require large storage capacity and power for data storage and communication due to periodic accumulation and transmission of flow rate data, leading to increased size and battery capacity needs.
Innovation Solution
The gas meter reduces data storage and communication power requirements by selectively storing and transmitting only necessary flow rate data based on predetermined conditions, including data before and after appliance operation starts, and incorporating temperature data for improved analysis accuracy, with the center device determining appliance usage and potential abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flow rate data is accumulated periodically and transmitted to the center, then the center can determine gas appliance usage, but the gas meter requires large storage capacity and power consumption increases
Solution Approach 1:
The patent extracts only the necessary flow rate data for appliance determination from the complete periodic data set. By identifying and transmitting only the critical data points required for accurate appliance identification, the system reduces storage requirements while maintaining determination reliability.
Solution Approach 2:
Instead of transmitting all periodic flow rate data, the patent transmits only a partial set of data that is sufficient for appliance determination. This partial action approach reduces communication overhead and storage needs while achieving the same functional outcome.
2Reliability
If flow rate data is accumulated periodically and transmitted to the center, then the center can determine gas appliance usage, but power consumption for communication increases
Solution Approach 1:
The patent extracts only the essential flow rate data needed for appliance determination, reducing the volume of data that requires transmission. This extraction principle directly lowers communication power consumption while preserving the ability to accurately identify gas appliance usage patterns.
3Quantity of substance
If data compression is performed to reduce storage amount, then storage capacity requirements decrease, but power consumption for communication remains large
Solution Approach 1:
Rather than compressing all periodic data, the patent extracts only the necessary data points for appliance determination. This approach simultaneously reduces storage requirements and minimizes communication power consumption by transmitting fewer data points from the outset.
Data Source
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AI summary
A gas meter includes flow rate measurer (3) that measures a flow rate of gas in time series and storage unit (9) that stores the flow rate measured by flow rate measurer (3) as flow rate data. The gas meter also includes storage condition setting unit (7) that determines a condition for storing the flow rate data in storage unit (9) and communication unit (10) that communicates with center device (11). Storage unit (9) stores the flow rate data to satisfy the condition set by storage condition setting unit (7).