RADIO CRIME PREVENTION DEVICE, RADIO CRIME PREVENTION SYSTEM, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a radio crime prevention device capable of reporting that there is a danger of intrusion in advance when radio interference is detected in a frequency band to be used for communication between the radio crime prevention device and a sensor terminal. SOLUTION: The invention comprises a receiving means 11 for receiving an intrusion detection signal to output a reception telegram and a carrier detection signal; a control means 12 for interpreting contents of the reception telegram to output a control signal; a radio interference detection means 13 for detecting the radio interference to output the detection result; and a reporting means 14 for reporting according to the control signal and the detection result. The radio interference detection means 13 detects presence of the radio interference when the carrier detection signal has been outputted for a predetermined period of time or over. Thus, when the radio interference is present and radio communication with the sensor terminal cannot be made, the radio crime prevention device 10 is can report in advance the possible danger of intrusion. COPYRIGHT: (C)2005,JPO&NCIPI