Mitsubishi Electric Corporation

Naoki Aizawa

Kenji Inomata

Yoshio Sato

Hiroshi Kage

Kazuhiko Sumi

Koichi Ikuta

Akihiro Toyohara

Sayu Takamatsu

Shuji Aizawa

A normalization processing circuit normalizes a position of a complex demodulation signal on a complex plane from an A/D converter, and outputs a normalized complex demodulation signal after the normalization to a multiple-dimensional feature extractor. The multiple-dimensional feature extractor calculates a feature quantity that changes when a person intrudes, a feature quantity that changes in wind and rain, and a feature quantity that changes when a spatially isolated intense electric field exists. A discriminator discriminates that a person has intruded based on the feature quantities of three dimensions.

Intruding object discrimination apparatus for discriminating intruding object based on multiple-dimensional feature

For one setting operator being able to readily adjust a threshold by oneself, by means of reporting units that issue a report to indicate the amount of variation in a received electric wave when an intruding object has intruded between a transmitting leaking transmission path and a receiving leaking transmission path, and a remote controller that generates a signal which changes a threshold in the table through the receiving leaking transmission path, the threshold is adjusted properly for each of the blocks with the remote controller based on the report issued from the reporting unit to indicate the amount of variation in the received electric wave caused by a trial intrusion between the two transmission paths by a threshold setting operator.

Intrusion detection system and intrusion detection apparatus

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Tokyo, Japan

Naoki Aizawa