Power Line Alarm Transmission System.

摘要

The report presents a discussion of system design considerations,design implementation,test plan,test results,system limitations and recommended operating procedures. Research reveals that the power line alarm transmission system in its present form represents a feasible concept. Certain weaknesses do exist,however,the main one being false alarm susceptibility to two sources. One of these sources includes certain types of broadcast receivers which use a transformerless power supply. False alarms were also induced in the system by the radio switching of a heavy heating element load. Researchers conclude that the transition of the system from its present status as a proven concept to an inexpensive high reliability residential alarm system will require both the engineering of a hardware development phase and full scale production engineering with a goal of maximizing the cost effectiveness of the system concept.