SIGNAL BLOCKING DETECTION IN OFFENDER MONITORING SYSTEMS

摘要

An electronic monitoring device for monitoring an individual and detecting signal blocking. The electronic monitoring device may be equipped with GPS and/or RF communication technology that may be interrupted intentionally or unintentionally. The device compares sampled incident energy with a reference level to identify an occurrence of blocking the transmitter signal. The device may also base determination of a signal blocking occurrence on input from a status detection module. Status information is also leveraged to intelligently calibrate the device to more robustly determine a tampering event.

主权项

1. An electronic monitoring device for monitoring an individual and detecting blocking, the device comprising:
a communication module comprising a transmitter to transmit a radio frequency (RF) signal, a signal blocking detection module, and a comparator; wherein the signal blocking detection module comprises an antenna and a signal detector; wherein the antenna samples incident energy, the incident energy comprising at least one of: energy transmitted by the transmitter, reflected energy, and environmental energy; wherein the signal detector converts the energy sampled by the antenna into a measured parameter; and wherein the comparator compares the measured parameter to a reference level to identify an occurrence of blocking the transmitter signal.