| 摘要 |
PURPOSE: A smart meter is provided to improve the safety and security by making it difficult to completely extract data related to the privacy of a user from a memory even when exposed or damaged. CONSTITUTION: A meter-reading part(110) reads usage information of energy consumed at the consumer side. A storage part(120) includes one or more memories and stores data containing the energy usage information read from the meter-reading part and a security key to encrypt the information. A communications part(140) transmits data containing the energy usage information to an AMI(Advanced Metering Infrastructure) server and receives data transmitted from the AMI server. A control part(130) periodically or non-periodically changes the memory arrangement structure of the storage part and stores the changed memory arrangement structure in a memory management table. [Reference numerals] (AA) Start; (BB) End; (S105) Detect and store metering data; (S110) Is data transmit period approached?; (S115) Is data management period approached?; (S120) Rearrange bank, bit command, or word of memory; (S125) Change memory management table; (S130) Read and transmit stored metering data based on memory management table; (S135) Is process ended? |
