WIRELESS LAN EXPLOSION-PROOF REPEATER, EXPLOSION-PROOF SWITCHING HUB, AND WIRELESS COMMUNICATION MEANS, SWITCHING HUB WITH EXPLOSION-PROOF WIRELESS COMMUNICATION MEANS, AND COMMUNICATION SYSTEM IN DANGEROUS AREA

WIRELESS LAN EXPLOSION-PROOF REPEATER, EXPLOSION-PROOF SWITCHING HUB, AND WIRELESS COMMUNICATION MEANS, SWITCHING HUB WITH EXPLOSION-PROOF WIRELESS COMMUNICATION MEANS, AND COMMUNICATION SYSTEM IN DANGEROUS AREA

PROBLEM TO BE SOLVED: To provide a wireless LAN explosion-proof repeater, an explosion-proof switching hub, an explosion-proof wireless communication means, a switching hub with an explosion-proof wireless communication means, and a communication system in a dangerous area which can safely and effic...

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Hauptverfasser: NAGASEKO TORU, TANI TETSUJI
Format: Patent
Sprache:eng
Schlagworte:
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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TANI TETSUJI
description PROBLEM TO BE SOLVED: To provide a wireless LAN explosion-proof repeater, an explosion-proof switching hub, an explosion-proof wireless communication means, a switching hub with an explosion-proof wireless communication means, and a communication system in a dangerous area which can safely and efficiently communicate a large amount of data through a wireless LAN between a vast dangerous area such as an oil factory and a petrochemical factory and a non-dangerous area, and which enable an improvement of a reliability of data communication and a reduction of a setting cost or the like. SOLUTION: A communication system 10 in a dangerous area is arranged so as to communicate with a wireless LAN explosion-proof repeater 1 having a wireless LAN access point 11 which connects with a transmitter/receiver by a wireless LAN, an explosion-proof switching hub 2 connected to the wireless LAN explosion-proof repeater 1 through an electric communication cable 27, and an explosion-proof wireless communication means 3 connected to the explosion-proof switching hub 2 through the electric communication cable 27, and a wireless LAN access point 51 of a measuring part 50 by the wireless LAN. COPYRIGHT: (C)2008,JPO&INPIT
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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title WIRELESS LAN EXPLOSION-PROOF REPEATER, EXPLOSION-PROOF SWITCHING HUB, AND WIRELESS COMMUNICATION MEANS, SWITCHING HUB WITH EXPLOSION-PROOF WIRELESS COMMUNICATION MEANS, AND COMMUNICATION SYSTEM IN DANGEROUS AREA
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