Method for memory management

摘要

The invention relates to a method for memory management, in which memory usage data relating to the use of the memory is recorded. The memory usage data is determined in response to a number of memory write and/or read accesses.

主权项

1. A method for managing a removable flash memory in a camera used for security relevant surveillance, the method comprising:
storing image data on the removable flash memory; determining data indicating present wear of the removable flash memory in response to at least one of write and read cycles having taken place since creation of memory usage data; storing, on the removable flash memory, the data indicating present wear together with the image data in a cyclic manner in address space, to avoid repeated use of cells for storing the memory usage data; storing, on the camera, the data indicating present wear together with a memory identifier of the removable flash memory; comparing the data indicating present wear with a maximum number; and generating a warning upon exceeding a threshold value so as to ensure reliability of the removable flash memory prior to the removable flash memory having reached a wear necessitating an exchange thereof.