Hitachi, Ltd.

Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Teruki Niki

Masaomi Ueda

Takuya Imaide

Masahiro Kageyama

Keisuke Inata

Hiroaki Yoshio

Hiroyasu Ohtsubo

Taku Nakamura

Akira Ishikawa

Tetsuya Hino

Takashi Mitoh

A surveillance system having surveillance terminals and a surveillance center is configured to perform effective hazard alert signaling, depending on the hazard type. The surveillance system comprises a plurality of surveillance terminals, which are connected to the surveillance center by a network, carries out hazard and alert signaling. One surveillance terminal detects a hazard and sends a hazard information signal reporting what hazard has just been detected to the surveillance center. The surveillance center receives the hazard information signal, identifies what type of hazard source and the surveillance terminal that sent the hazard information signal, selects surveillance terminals to be alerted to the hazard from among the plurality of surveillance terminals, depending on the identified type of the hazard source and its locality, and sends a hazard alert signal to the selected surveillance terminals.

Surveillance system with surveillance terminals and surveillance center

A gateway realizes a connection between a network where HAVi devices are hooked up and another network in accordance with a Play-and-Plug spec. (e.g. the internet protocol (IP)) other than the HAVi spec. An HAVi plug-in detector detects a plug-in of a device to the HAVi network. A virtual device functions as a gateway for accessing from a device plugged-in the IP network to the device plugged-in the HAVi network. A virtual device controller provides the virtual device with an IP identifier for accessing to the virtual device from the IP network, and turns the virtual device to a standby status waiting for connection. A pseudo address generator generates a pseudo address for the virtual device to communicate with the device in the HAVi network, and provides the virtual device with the pseudo address. An address-correspondence-controller controls the correspondence between an HAVi address and the IP identifier both provided to the virtual device.

Gateway apparatus and the method thereof

Growing community of inventors

Tokyo, Japan

Teruki Niki