Title:
ADDRESS TYPE FIRE DETECTION DEVICE USING VOLTAGE-CONTROLLED CURRENT SOURCE CONTROLLED BY DIGITAL-TO-ANALOG CONVERSION UNIT, AND FIRE DETECTION SYSTEM COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2018/097405
Kind Code:
A1
Abstract:
An address type fire detection device using a voltage-controlled current source controlled by a digital-to-analog conversion unit comprises: an address setting unit for generating an address code value corresponding to an electrical connection state of each of a plurality of switches; a digital-to-analog conversion unit for generating a reference voltage having a voltage level corresponding to the address code value; and a constant current source circuit unit for driving, by a power line, a fire detection constant current having a current value corresponding to a voltage level of the reference voltage according to the control of the reference voltage, when a fire detection sensor is activated.
Inventors:
CHAE SEOK (KR)
SHIN SOOYOUNG (KR)
LEE MALSUK (KR)
SHIN SOOYOUNG (KR)
LEE MALSUK (KR)
Application Number:
PCT/KR2017/001957
Publication Date:
May 31, 2018
Filing Date:
February 22, 2017
Export Citation:
Assignee:
KUMOH NAT INST TECHNOLOGY IND ACAD COOP FOUND (KR)
TOP E&C ARCH CO LTD (KR)
TOP E&C ARCH CO LTD (KR)
International Classes:
G08B25/01; G08B17/06; H03M1/34
Foreign References:
| KR101527371B1 | 2015-06-09 | |||
| KR101322250B1 | 2013-10-28 | |||
| KR20080059578A | 2008-06-30 | |||
| JP2013202102A | 2013-10-07 | |||
| KR20080079911A | 2008-09-02 |
Attorney, Agent or Firm:
STY PATENT LAW FIRM (KR)
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