Title:
IOT-BASED WIRELESS FLAME DETECTION SYSTEM FOR BOTH HYDROGEN FIRE AND NORMAL FIRE
Document Type and Number:
WIPO Patent Application WO/2022/240231
Kind Code:
A1
Abstract:
The present invention provides a technology related to a flame detection system. More particularly, the present invention may comprise multiple flame detection devices and a terminal device. Each flame detection device comprises: a housing unit having a containing space formed therein and comprising a power supply unit for outputting a direct current; a first optical filter unit installed in the housing so as to selectively transmit wavelengths in a preconfigured first wavelength area and to block wavelengths outside the preconfigured first wavelength area; a first flame detection unit installed on the rear surface of the first optical filter unit so as to detect a wavelength in the first wavelength area, thereby generating first electric energy, the first flame detection unit then removing noise and amplifying same, thereby outputting an amplified voltage and detecting a flame; a second flame detection unit installed in the housing unit so as to output or block second electric energy in response to whether a wavelength included in a preconfigured second wavelength area is detected, thereby detecting a flame; and a control unit connected to the first and second flame detection units such that, if the first flame detection unit applies an amplified voltage thereto, and if the second flame detection unit applies second electric energy, the control unit counts second electric energy applied for a preconfigured period of time, if the maximum value of the amplified voltage applied by the first flame detection unit and the minimum value of the amplified voltage match with preconfigured maximum and minimum values, the control unit calculates a first fire calculation value, if inclinations of the maximum and minimum values of the amplified voltage match with preconfigured inclinations, the control unit calculates a second fire calculation value, the control unit adds/subtracts multiple first fire calculation values calculated over time, thereby calculating a first fire addition/subtraction value, the control unit adds/subtracts multiple second fire calculation values calculated over time, thereby calculating a second fire addition/subtraction value, and if the first fire addition/subtraction value exceeds a first fire reference value, or if the second fire addition/subtraction value exceeds a second fire reference value, the control unit outputs a fire signal, the control unit being connected to a communication network such that radio communication is possible. The terminal device is connected to the multiple flame detection devices through the communication network so as to receive a fire signal transmitted by the flame detection devices.
Inventors:
LEE YEU YONG (KR)
LEE SUN YOUNG (KR)
SHIN SEONG GEUN (KR)
LEE SUN YOUNG (KR)
SHIN SEONG GEUN (KR)
Application Number:
PCT/KR2022/006879
Publication Date:
November 17, 2022
Filing Date:
May 13, 2022
Export Citation:
Assignee:
CHANG SUNG ACE CO LTD (KR)
International Classes:
G08B17/12; G01J5/00; G08B25/10
Foreign References:
| KR100671045B1 | 2007-01-17 | |||
| KR101008897B1 | 2011-01-17 | |||
| KR101604571B1 | 2016-03-22 | |||
| KR20210012326A | 2021-02-03 | |||
| JPH0822584A | 1996-01-23 |
Attorney, Agent or Firm:
OH, Young Kyun (KR)
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