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Fire-accident alarm system

一种火警系统、火灾的技术，应用在火灾报警器、报警器、仪器等方向，能够解决电压电平低等问题

Inactive Publication Date: 2005-04-20
NOHMI BOSAI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When transmitting the transmission signal transmitted through the signal line so that the voltage is repeated high and low, there is such a problem that if the relay is operated in a low voltage state, the relay may not respond because the voltage level to operate the relay is too low

Method used

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Examples

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Embodiment Construction

[0036] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0037] First, the outline of the present invention will be described.

[0038] The present invention is a fire alarm system in which multiple fire receivers are connected and installed via a local area network (LAN), which monitor and control multiple terminal devices (fire sensors and controlled devices such as zone sound devices and smoke prevention and Exhaust), where fire receivers present on a same LAN are respectively given group numbers, and where each fire receiver operates only in a same group to share information.

[0039] Also, a specific group can be set as a group number. A Fire Receiver authorized for a particular group status intercepts any message from every Fire Receiver connected to the same Local Area Network (LAN) regardless of the group number.

[0040] So, even if the building becomes large and complex; a device is prepared by installing multiple...

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PUM

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Abstract

A fire alarm system provided with a fire receiver (1) to which a plurality of fire sensors and controlled devices are connected. This fire receiver (1) comprises a local area network interface (11) that is connected with other fire receivers, when a fire sensor issues an alarm, transmits this fire information and a group number set in advance through this local area network, and when this fire When the receiver receives fire information transmitted from other fire receivers via the local area network, it only displays (12) the fire information of the same group number. In this way, even if multiple fire receivers are used in a large building that is divided into ridges, fire information can be shared without clutter.

Description

[0001] The application for the present invention is a divisional application of the invention patent application submitted on October 25, 2001 with the application number 01145622.1 and the title of invention being "fire alarm system". technical field [0002] The invention relates to a fire alarm system. Background technique [0003] Conventionally, in a fire alarm system composed of fire receivers connected to each other through a local area network, fire detection information of the fire receivers can be shared among each of the connected fire receivers through the local area network. [0004] Additionally, in conventional fire alarm systems, as multiple terminal devices connected to one fire receiver, controlled devices such as zone sound devices and smoke prevention and exhaust The sensors detect the fire and they are connected to the same fire receiver. The connection between them is done by the receiver unit. [0005] Also, a fire alarm system is configured such tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/00G08B26/00
CPCG08B17/00G08B26/004
Inventor 山口靖夫崎原诚菱野浩一大木崇裕恩智宗大
Owner NOHMI BOSAI LTD
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