Self check-type flame detector

• US 8,346,500 B2
• Filed: 09/17/2010
• Issued: 01/01/2013
• Est. Priority Date: 09/17/2010
• Status: Active Grant

• Current Assignee: Chang Sung ACE Co., Ltd.
• Original Assignee: Chang Sung ACE Co., Ltd.
• Inventors: Lee, Yeu Yong, Choi, Seung Hun
• Primary Examiner(s): TSAI, CAROL S W
• Application Number:
  US12/884,752
• Publication Number:
  US 20120072147A1
• Time in Patent Office: 837 Days
• Field of Search: 702/64, 702/75, 702/134, 362/235, 362/236, 362/253, 362/276, 362/602, 362/347, 250/352, 250/339.15, 250/554, 250/342, 250/226, 250/336.1, 250/338.1, 250/339.05, 250/339.01, 250/216, 340/578, 340/577, 340/680, 340/628, 340/629, 340/630, 431/79
• US Class Current: 702/134
• CPC Class Codes: F23N 2229/14 using two or more different types of flame sensor
• CPC Class Codes: F23N 2231/10 for component failures
• CPC Class Codes: F23N 5/082 using electronic means
• CPC Class Codes: F23N 5/242 using electronic means

Abstract

A self check-type flame detector includes a casing provided with a monitoring window formed therein. A wavelength generation unit is disposed inside the casing and generates a wavelength in a direction of the monitoring window. A wavelength detection element is disposed inside the casing and detects the wavelength. A comparison unit is provided with a wavelength DB for storing intensity of a reference wavelength and determines whether the monitoring window has been contaminated. A display unit is located outside the casing and displays a state of the monitoring window. A communication unit is disposed inside the casing and configured to receive operation information for the wavelength generation unit, to provide the operation information to the wavelength generation unit, and to transmit the intensity of the wavelength, or a normal signal or a contamination signal of the monitoring window.

Claims

1. A self check-type flame detector, comprising:

a casing provided with a monitoring window formed therein;

a wavelength generation unit disposed inside the casing and configured to generate a wavelength in a direction of the monitoring window;

a wavelength detection element disposed inside the casing and configured to detect the wavelength generated by the wavelength generation unit;

a comparison unit provided with a wavelength database (DB) for storing intensity of a reference wavelength and configured to determine whether the monitoring window has been contaminated by comparing intensity of the wavelength detected by the wavelength detection element with that of the reference wavelength stored in the wavelength DB;

a display unit located outside the casing and configured to display a state of the monitoring window determined by the comparison unit; and

a communication unit disposed inside the casing and configured to receive operation information for the wavelength generation unit from outside of the casing, to provide the operation information to the wavelength generation unit, and to transmit the intensity of the wavelength detected by the wavelength detection element, or a normal signal or a contamination signal of the monitoring window determined by the comparison unit, to outside of the casing.

2. The self check-type flame detector according to claim 1, further comprising a voltage abnormality determination unit for receiving a voltage value, obtained by dividing an input voltage applied to the flame detector using a voltage divider, and generating a voltage abnormality signal when the divided voltage value falls outside a range of a preset reference voltage.

3. The self check-type flame detector according to claim 2, further comprising a temperature abnormality determination unit installed inside the casing and configured to receive a voltage value proportional to temperature from a semiconductor device which outputs the voltage value proportional to the temperature, and to generate a temperature abnormality signal when the voltage value proportional to the temperature falls outside a range of a preset reference voltage.

4. The self check-type flame detector according to claim 3, further comprising infrared (IR) and ultraviolet (UV) sensors installed inside the casing and configured to sense whether a fire is occurring,

wherein the display unit comprises a light emitting element for displaying a yellow signal when at least one of a monitoring window contamination signal, a voltage abnormality signal, and a temperature abnormality signal is received from the comparison unit, the voltage abnormality determination unit or the temperature abnormality determination unit, displaying a red signal when a fire occurrence signal indicative of occurrence of a fire is received from the IR and UV sensors, and displaying a green signal in remaining cases.

5. A self check-type flame detector, comprising:

a casing provided with a monitoring window formed therein;

a reflective surface fastened to the casing and located outside the casing;

a wavelength generation unit disposed inside the casing and configured to generate a wavelength in a direction of the reflective surface through the monitoring window;

a wavelength detection element disposed inside the casing and configured to detect a wavelength reflected from the reflective surface through the monitoring window;

a comparison unit provided with a wavelength database (DB) for storing intensity of a reference wavelength and configured to determine whether the monitoring window has been contaminated by comparing intensity of the wavelength detected by the wavelength detection element with that of the reference wavelength stored in the wavelength DB;

a display unit located outside the casing and configured to display a state of the monitoring window determined by the comparison unit; and

a communication unit disposed inside the casing and configured to receive operation information for the wavelength generation unit from outside of the casing, to provide the operation information to the wavelength generation unit and to transmit the intensity of the wavelength detected by the wavelength detection element, or a normal signal or a contamination signal of the monitoring window determined by the comparison unit, to outside of the casing.

6. The self check-type flame detector, according to claim 5, further comprising a voltage abnormality determination unit for receiving a voltage value, obtained by dividing an input voltage applied to the flame detector using a voltage divider, and generating a voltage abnormality signal when the divided voltage value falls outside a range of a preset reference voltage.

7. The self check-type flame detector according to claim 6, further comprising a temperature abnormality determination unit installed inside the casing and configured to receive a voltage value proportional to temperature from a semiconductor device which outputs the voltage value proportional to the temperature, and to generate a temperature abnormality signal when the voltage value proportional to the temperature falls outside a range of a preset reference voltage.

8. The self check-type flame detector according to claim 7, further comprising infrared (IR) and ultraviolet (UV) sensors installed inside the casing and configured to sense whether a fire is occurring,

wherein the display unit comprises a light emitting element for displaying a yellow signal when at least one of a monitoring window contamination signal, a voltage abnormality signal, and a temperature abnormality signal is received from the comparison unit, the voltage abnormality determination unit or the temperature abnormality determination unit, displaying a red signal when a fire occurrence signal indicative of occurrence of a fire is received from the IR and UV sensors, and displaying a green signal in remaining cases.

9. A self check-type flame detector, comprising:

a casing provided with a monitoring window formed therein;

a wavelength generation unit fastened to the casing, located outside the casing, and configured to generate a wavelength in a direction of a wavelength detection element through the monitoring window;

the wavelength detection element disposed inside the casing and configured to detect the wavelength generated by the wavelength generation unit;

a comparison unit provided with a wavelength database (DB) for storing intensity of a reference wavelength and configured to determine whether the monitoring window has been contaminated by comparing intensity of the wavelength detected by the wavelength detection element with that of the reference wavelength stored in the wavelength DB;

a display unit located outside the casing and configured to display a state of the monitoring window determined by the comparison unit; and

a communication unit disposed inside the casing and configured to receive operation information for the wavelength generation unit from outside of the casing, to provide the operation information to the wavelength generation unit and to transmit the intensity of the wavelength detected by the wavelength detection element, or a normal signal or a contamination signal of the monitoring window determined by the comparison unit, to outside of the casing.

10. The self check-type flame detector according to claim 9, further comprising a voltage abnormality determination unit for receiving a voltage value, obtained by dividing an input voltage applied to the flame detector using a voltage divider, and generating a voltage abnormality signal when the divided voltage value falls outside a range of a preset reference voltage.

11. The self check-type flame detector according to claim 10, further comprising a temperature abnormality determination unit installed inside the casing and configured to receive a voltage value proportional to temperature from a semiconductor device which outputs the voltage value proportional to the temperature, and to generate a temperature abnormality signal when the voltage value proportional to the temperature falls outside a range of a preset reference voltage.

12. The self check-type flame detector according to claim 11, further comprising infrared (IR) and ultraviolet (UV) sensors installed inside the casing and configured to sense whether a fire is occurring,

wherein the display unit comprises a light emitting element for displaying a yellow signal when at least one of a monitoring window contamination signal, a voltage abnormality signal, and a temperature abnormality signal is received from the comparison unit, the voltage abnormality determination unit or the temperature abnormality determination unit, displaying a red signal when a fire occurrence signal indicative of occurrence of a fire is received from the IR and UV sensors, and displaying a green signal in remaining cases.

13. A self check-type flame detector, comprising:

a casing provided with a monitoring window formed therein;

a wavelength generation unit installed in a remote control and configured to generate a wavelength in a direction of a wavelength detection element through the monitoring window;

the wavelength detection element disposed inside the casing and configured to detect the wavelength generated by the wavelength generation unit;

a comparison unit provided with a wavelength database (DB) for storing intensity of a reference wavelength and configured to determine whether the monitoring window has been contaminated by comparing intensity of the wavelength detected by the wavelength detection element with that of the reference wavelength stored in the wavelength DB;

a display unit located outside the casing and configured to display a state of the monitoring window determined by the comparison unit; and

a communication unit configured to transmit the intensity of the wavelength detected by the wavelength detection element, or a normal signal or a contamination signal of the monitoring window determined by the comparison unit, to outside of the casing.

14. The self check-type flame detector according to claim 13, further comprising a voltage abnormality determination unit for receiving a voltage value, obtained by dividing an input voltage applied to the flame detector using a voltage divider, and generating a voltage abnormality signal when the divided voltage value falls outside a range of a preset reference voltage.

15. The self check-type flame detector according to claim 14, further comprising a temperature abnormality determination unit installed inside the casing and configured to receive a voltage value proportional to temperature from a semiconductor device which outputs the voltage value proportional to the temperature, and to generate a temperature abnormality signal when the voltage value proportional to the temperature falls outside a range of a preset reference voltage.

16. The self check-type flame detector according to claim 15, further comprising infrared (IR) and ultraviolet (UV) sensors installed inside the casing and configured to sense whether a fire is occurring,

wherein the display unit comprises a light emitting element for displaying a yellow signal when at least one of a monitoring window contamination signal, a voltage abnormality signal, and a temperature abnormality signal is received from the comparison unit, the voltage abnormality determination unit or the temperature abnormality determination unit, displaying a red signal when a fire occurrence signal indicative of occurrence of a fire is received from the IR and UV sensors, and displaying a green signal in remaining cases.

17. A self check-type flame detector, comprising:

a casing provided with a monitoring window formed therein;

a light emitting unit disposed inside the casing and configured to generate light in a direction of the monitoring window;

a camera disposed inside the casing and configured to capture the monitoring window;

a turbidity comparison unit provided with a turbidity database (DB) for storing turbidity of a reference image that is used to determine contamination of the monitoring window, the turbidity comparison unit determining whether the monitoring window has been contaminated by comparing turbidity of an image captured by the camera with the turbidity of the reference image stored in the turbidity DB; and

a display unit located outside the casing and configured to display a state of the monitoring window determined by the turbidity comparison unit.

18. The self check-type flame detector according to claim 17, further comprising a voltage abnormality determination unit for receiving a voltage value, obtained by dividing an input voltage applied to the flame detector using a voltage divider, and generating a voltage abnormality signal when the divided voltage value falls outside a range of a preset reference voltage.

19. The self check-type flame detector according to claim 18, further comprising a temperature abnormality determination unit installed inside the casing and configured to receive a voltage value proportional to temperature from a semiconductor device which outputs the voltage value proportional to the temperature, and to generate a temperature abnormality signal when the voltage value proportional to the temperature falls outside a range of a preset reference voltage.

20. The self check-type flame detector according to claim 19, further comprising infrared (IR) and ultraviolet (UV) sensors installed inside the casing and configured to sense whether a fire is occurring,

wherein the display unit comprises a light emitting element for displaying a yellow signal when at least one of a monitoring window contamination signal, a voltage abnormality signal, and a temperature abnormality signal is received from the comparison unit, the voltage abnormality determination unit or the temperature abnormality determination unit, displaying a red signal when a fire occurrence signal indicative of occurrence of a fire is received from the IR and UV sensors, and displaying a green signal in remaining cases.