SECURITY SYSTEM STORAGE OF PERSISTENT DATA

摘要

A security system including security devices generating persistent data, a local control system receiving the persistent data from the security devices, the local control system including a microprocessor and a non-volatile memory, and a server remote from the local control system. The remote server has remote data storage and is in communication with the local control system microprocessor. The microprocessor periodically transmits logical portions of persistent data to the remote server for saving in the remote data storage, where the persistent data portions each include a timestamp. The microprocessor also periodically saves the persistent data portions in the local control system non-volatile memory less frequently than the persistent data portions are periodically saved in the remote data storage, and saves the timestamp in the local data storage for each persistent data portion saved only at the remote server. When rebooting the local control system, the microprocessor retrieves from the remote data storage only the persistent data portions having timestamps subsequent to the timestamp saved in the local data control system non-volatile memory.