Alarm system with automatic self-monitoring signal analysis.

摘要

It ARISES SYSTEM WITH SELF TEST DATA COMMUNICATIONS FOR USE WITH AN ALARM SYSTEM. IN A FIRST ASPECT COMMUNICATIONS SYSTEM IS ABLE TO MODIFY an operational parameter such as signal sensitivity INPUT a receiver at a monitoring station when receiving a supervisory signal DEVICE ALARM REMOTE TO ENSURE THAT an alarm signal DIFFERENT FROM SUPERVISION RECEIVED WHEN PROPERLY BE OPERATIONAL pARAMETER MUST BE RETURNED BACK TO YOUR STATE NORMAL. In a second aspect, the element RECEIVER COMMUNICATIONS SYSTEM IS ABLE TO RECEIVE THE MESSAGE SIMULTANEOUSLY ON TWO LEVELS OF DIFFERENT SENSITIVITY, and for a supervisory message is used, the path of least SENSITIVITY TO ENSURE THAT ALARM MESSAGES DIFFERENT TO OVERSIGHT BE RECEIVED SIGNAL AN ADEQUATE MARGIN. In a third aspect, the element COMMUNICATIONS SYSTEM RECEIVER escapaz measure the strength of the signal (RSSI) signal and comparing the received message, IF A MESSAGE OF SUPERVISION, limited DEFAULT. WHEN THE SIGNAL IS SUPERVISION RSSI above the limit, the message received is passed to CONTROL AS VALID RECEIPT OF FORM; WHEN THE SIGNAL NO SUPERVISION RSSI is above the limit, then the message is ignored.