Hitachi, Ltd.

Hitachi Metals, Ltd.

Hitachi Engineering Services Co., Ltd.

Matrix Gmbh

Kazuo Tamura

Ken Takei

Nobuaki Kitano

Seiichi Kashimura

Hiroyuki Hori

Takeshi Kawahara

Masahiro Takeshima

Masayoshi Kondou

Dai Kawarai

Yasuo Ishikawa

The present invention provides a high/low frequency dual wireless location detection and information transmission system which is high in reliability and maintainability, and can be easily installed. A leakage coaxial inner conductor and a conductor line provided in parallel are short-circuited at an end, a single leakage coaxial operation and a loop operation of the inner conductor and the conductor line are performed at the same time, the ID of a tag is communicated using magnetic fields which locally exist near the conductor line by the loop, and wireless position detection and information communications which are less affected by the influence of ambient environments due to electromagnetic waves in a closed area are realized by open-type lines.

Low/high frequency shared leakage antenna, base station apparatus and close-range detection system using the antenna

A tag detecting system for detecting a movement of a person or an object that mounts an RFID tag, a moving object detecting method, and an entrance/exit management system using the moving object detecting system are provided. The tag detecting system detects a specific person or object by restricting a detection area of the RFID tag to a narrow area. Since the moving object detecting method detects a piggyback, the entrance/exit system prevents the piggyback even if there are a number of persons passing through an entrance/exit gate almost at the same time.

Tag detecting system, moving object detecting method, and entrance/exit management system

Growing community of inventors

Mita, Japan

Kazuo Tamura