SIGNAL LEVEL MONITORING SYSTEM THAT MINIMIZES FALSE ALARMS

摘要

A system for monitoring signal level of a signal in a communications network, comprising a monitor that includes (i) a receiver to receive the signal from the network, (ii) a detector for detecting signal level values of the signal, and (iii) a sensor for sensing temperatures at the monitoring point in association with the signal level values. The system further comprises (i) means for evaluating the signal level values relative to an alarm reference, (ii) means for issuing alarms based on an alarm criterion defined in terms of the signal level values and the alarm reference, (iii) means for deriving an empirical relationship between signal level and temperature from the signal level values and temperatures, and (iv) means for adjusting the alarm criterion in accordance with the empirical relationship, such that temperature-dependent variations of signal level are substantially accounted for in issuing alarms.

主权项

1. A system for monitoring the signal level of a signal at a monitoring point in a communications network, comprising:
(a) a monitor, configured to be coupled to the monitoring point, including (i) a receiver tuned to receive the signal from the monitoring point, (ii) a detector for detecting values of signal level of the signal at the monitoring point, and (iii) a temperature sensor for sensing temperatures at the monitoring point in association with the detection of the signal level values; (b) means for evaluating the detected signal level values relative to an alarm reference; (c) means for issuing alarms based on an alarm criterion defined in terms of the signal level values and the alarm reference; (d) means for deriving an empirical relationship between signal level and temperature from the signal level values detected and the temperatures sensed at the monitoring point; and (e) means for adjusting the alarm criterion in accordance with the empirical relationship, such that temperature-dependent variations of the detected signal level values are substantially accounted for in issuing the alarms.