Yokogawa Electric Corporation

Kiyoshi Takai

Hitoshi Saito

Hiroshi Shimizu

Minoru Takeuchi

Kazuo Nagata

Naoyuki Fujimoto

Masato Yamaji

Satoshi Yoshitake

Koji Akiyama

Toshio Sekiguchi

Tetsuo Inagaki

An interface module according to one aspect of the invention includes an interface and a local communication device. The interface, which is connected to a field device, receives a first wireless signal from the field device. The local communication device wirelessly transmits the first signal to a wireless module by first local communications. The local communication device receives, from the wireless module by second local communications, a second signal destined for the field device that is wirelessly transmitted from an external device and wirelessly received by the wireless device. The interface device outputs the second signal to the field device.

Wireless device and interface module

A communication apparatus of an embodiment of the present invention includes a storage temporarily storing data received via a wireless network from another communication apparatus that sends the data regarding feedback control at a fixed time interval and an arranger configured to read out and output at the fixed time interval the data stored in the storage and to arrange the data with the fixed time interval.

Communication apparatus and wireless communication system

A wireless equipment diagnosis system which can perform inspection and maintenance precisely and accurately, and which comprises sensors which measure information on each equipment being diagnosed, a transponder which transmits measured data from the sensors after modulating the measured data; a portable interrogator which acquires the measured data by receiving transmitted signals from the transponder; and a host computer which diagnoses each equipment by implementing predetermined signal processing using information stored in advance and data transferred from the acquired data.

Wireless equipment diagnosis system

Growing community of inventors

Tokyo, Japan

Kiyoshi Takai