Embedded SMFS File Systems
Smart-meter File System (SMFSTM)
Smart-meter systems must meet significant technical challenges in order to lower manufacturing cost and power consumption and to achieve high reliability. HCC has developed an advanced Smart-meter File System (SMFS), custom designed for the needs of smart-energy and smart-meter applications. This can result in lower cost of manufacturing, shorter development time, reduced field maintenance, and longer guaranteed life of operation.
Instead of using a traditional file based system, HCC has taken the radical approach of defining a system built around the needs of smart-meters. Metering applications usually have well-defined record structures and HCC has used its extensive flash experience to take advantage of this. By taking a data-focused approach instead of a file-focused one, it is possible reduce the required number of write/erase cycles by an order of magnitude. Traditional file systems do not have built-in cyclic buffer logic for storing records and this can add complexity, significantly increasing the number of times flash must be accessed. SMFS uses a structured database to reduce the complexity of the application. This improves the performance in almost every way: speed, power consumption, and flash life.
Benefits of SMFS
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