防災連動制御システム

Disaster prevention ganged control system

Abstract

PROBLEM TO BE SOLVED: To provide a disaster prevention ganged control system by which normal transmission is performed without being short-circuited even when core wire is exposed and brought into contact by breakage of cover of a transmission line and a power line when the lines are bundled together. SOLUTION: The disaster prevented ganged control system 1 is provided with a disaster prevention ganged control panel 3, a plurality of repeaters 7a, 7b, 7c to individually control a plurality of pieces of equipment 5a, 5b, 5c to be controlled according to a control instruction from the disaster prevention ganged control panel 3. Power sources of the repeaters 7a, 7b, 7c are made independent by every repeater at an electrically insulated states and the respective repeaters 7a (7b, 7c) are constituted by electrically insulating a control circuit part 71 to receive supply of direct currents from DC-DC converters 17a (17b, 17c) and to control the equipment 5a (5b, 5c) to be controlled from a transmission circuit part 75 to receive the control instruction from the disaster prevention ganged control panel 3 and to control the control circuit part 71.
(57)【要約】 【課題】 伝送線及び電源線を束線した場合、それらの 被覆が破れて芯線が露出して接触しても短絡せずに正常 な伝送ができる防災連動制御システムの提供。 【解決手段】 防災連動制御システム1は、防災連動制 御盤3と、防災連動制御盤3からの制御指令に応じて複 数の被制御機器5a,5b,5cを個別に制御する複数 の中継器7a,7b,7cとを備える。中継器7a,7 b,7cの電源は、電気的に絶縁状態で各中継器毎に独 立され、かつ、各中継器7a(7b,7c)は直流−直 流変換器17a(17b,1 7c)から直流の供給を受 け被制御機器5a(5b,5c)を制御する制御回路部 71と、防災連動制御盤3からの制御指令を受信して制 御回路部71を制御する伝送回路部75とを電気的に絶 縁したものである。

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    US-7218058-B2May 15, 2007Hitachi, Ltd.Cold cathode type flat panel display
    US-7417379-B2August 26, 2008Hitachi, Ltd.Cold cathode type flat panel display