TELEMETRIC SYSTEM THAT OPERATES WITH RADIO WAVES, PROCESS FOR THE REPORTING OR COMMUNICATION OF A FAILURE CONDITION INDICATED BY A MONITORING SENSOR, LOAD SENSOR IN THE ELECTRIFIED FENCE AND SYSTEM FOR THE TRANSMISSION OF AN RF TRANSMISSION THROUGH A TRANSMISSION OF A RF SIGNAL

摘要

A system to monitor an electric fence or a secured area uses radio telemetry to report faults. The radio telemetry transmitter gathers data from a fence charge sensor, battery voltage sensor and/or switch contacts and encodes this information along with a unique address code in a serial data stream that modulates, by frequency shift keying (FSK), a radio frequency (RF) signal. A radio telemetry receiver intercepts the transmitted RF signal and compares the received address code to a preprogrammed unique address code. If code match occurs the received data is transferred to the appropriate displays. Various faults are reported visually and audibly. Fail-safe timers and error detector circuitry in the radio telemetry and transmitter receiver ensure the integrity of the radio telemetry link.