KR20160067237A - Flame detector testing device for laser and testing method therefor - Google Patents

Abstract

The present invention relates to a long distance tester for an infrared flame detector using a laser and a method for testing an infrared flame detector which can easily test whether an infrared flame detector properly operates even on a remote location. According to the present invention, the long distance tester for an infrared flame detector using a laser comprise: a tester body; and a laser module which is disposed on one side of the tester body, and emits a laser light beam using a main sensor loaded on an infrared flame detector to detect a fire flame.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a long range tester for an infrared flame detector using a laser and a test method for the infrared flame detector,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long range tester for infrared flame detectors using a laser and a test method for the infrared flame sensor. More particularly, the present invention relates to a test method for an infrared flame sensor, And a test method for an infrared flame detector.

Fire (flame) is an oxidation process in which material burns and releases energy in the form of light and heat. It is caused by various combustion reactions.

Generally, combustible materials are burned when they are combined with sufficient oxygen and heat, and their manifestation appears as heat, electricity, combustion gas, radiation, and so on. Light is emitted by double thermal radiation, which has different wavelengths depending on the temperature of the flame.

Due to the difference in wavelengths, the light source coming from the flame is roughly classified into three different wavelength regions such as ultraviolet rays, visible rays, and infrared rays.

Using these optical characteristics, the principle of operation of the flame detector is to recognize each light source with a high-resolution optical analyzer (sensor) and to identify the light source corresponding to the type of fire.

For reference, ultraviolet rays, when photographed with the sunlight spectrum, are not visible at shorter wavelengths than visible light. UV rays with shorter wavelengths than the visible or purple rays of the visible light burns the skin and has an unhealthy effect.

Infrared ray is electromagnetic wave having longer wavelength than visible ray. If it is classified according to the wavelength, it is called near-infrared ray with wavelength of 0.75-3 μm, far infrared ray with 3-25 μm, far infrared ray with 25 μm or more. It is characterized by having a stronger heat effect than visible light or ultraviolet light, and is therefore also referred to as a heat ray. Radiation heat transferred from the sun or heating element to space is mainly due to infrared rays.

On the other hand, the flame detector is classified according to the wavelength which senses the wavelength of light generated from the flame.

The flame detector's sensor types include an ultraviolet flame detector (UV) that identifies ultraviolet light, an infrared flame detector (usually IR3) that identifies the infrared, and an ultraviolet / infrared combined flame detector (UV / IR) .

First, the ultraviolet flame detector (UV) detects a ultraviolet wavelength characteristic (185 to 260 nm) emitted from a flame and operates when the change of the ultraviolet ray becomes a certain amount or more, and operates as a change of the light receiving amount of the light receiving element by ultraviolet rays .

The detection distance of the ultraviolet flame detector (UV) reaches up to 74m (flame size 1m) from 5m (flame size 2cm).

It has the best performance such as complete elimination of non-reclamation and ability to protect the equipment against damage.

Next, the infrared flame detector IR3 detects an infrared wavelength (4.4 占 퐉 to 0.2 占 퐉) radiated from the flame and operates when the change of the infrared ray becomes a certain amount or more. The infrared flame sensor IR3 operates as a change of the light receiving amount of the light receiving element by infrared rays Detector.

The detection range of the infrared flame detector (IR3) is 50m, which is relatively expensive but expensive.

Finally, the ultraviolet / infrared combined flame detector (UV / IR) operates when the change of flame emitted from the flame exceeds a certain amount, and it emits a single fire signal according to the change of the receiving amount of light receiving element by ultraviolet ray or infrared ray Detector.

Detection distance of ultraviolet / infrared combined flame detector (UV / IR) is 30m, which is relatively inexpensive compared with infrared flame detector (IR3) and is suitable for installation in an indoor space less than 30m.

The flame has characteristic combustion characteristic from the early stage. It emits a special wavelength which exists in different wavelength band of ultraviolet ray and infrared ray which can not be detected by the naked eye. The ultraviolet sensor which detects the ultraviolet wavelength characteristic (185 ~ 260nm) radiated from the flame and the infrared sensor which detects the infrared wavelength (4.4 ~ 0.2μm) are combined and the size is calculated / analyzed to detect the fire .

Such flame detectors can be installed in industrial facilities such as main facilities such as thermal power plants and substations, major security facilities such as airplane hangars or semiconductor factory production facilities, and general facilities to detect fire.

On the other hand, among various kinds of flame detectors, in case of infrared flame detectors, a test device for infrared flame detectors is required in order to test whether the flame detectors are properly operated or not.

As a tester for the infrared flame detector, it is possible to consider whether the infrared flame detector operates properly by using infrared radiation energy generated from an IR lamp, a halogen lamp, or a nichrome heating coil.

However, the means of infrared radiation energy generated by these means, that is, IR lamps, halogen lamps, or nichrome heating coils, is too small or too low to test whether the infrared flame detector operates properly or not There are disadvantages.

In other words, the detection range of the infrared flame detector is only a short distance of about 2 to 3 meters. However, the installation height of the infrared flame sensor installed in the actual industrial site is generally as high as 10 to 30 meters, It was difficult to test whether the infrared flame detector tester was functioning properly.

Nevertheless, in order to use this infrared flame detector tester, it was necessary to approach the infrared flame detector installed at a high position by using a high-priced ladder, and then to test whether the infrared flame detector tester was operating properly, It is necessary to develop the technology to solve these problems.

Korea Patent Office Application No. 10-2013-0039330 Korea Patent Office Application No. 10-2012-0031072

It is an object of the present invention to provide a long range tester for infrared flame detectors and a test method for infrared flame detectors which can easily test whether the infrared flame sensor operates properly even at a long distance.

The object is achieved by a tester main body; And a laser module mounted on one side of the main body of the tester for irradiating a laser beam with a main sensor mounted on an infrared flame sensor and detecting a fire flame, .

And a telephoto lens unit provided at one side of the main body of the tester to confirm the position of the main sensor mounted on the infrared flame sensor at a long distance.

And a switch operating unit provided at one side of the main body of the tester for setting a signal or a flame frequency for operating the laser module.

And a controller for controlling the operation of the laser module via the laser module output circuit based on the input signal of the switch operating part.

And a bridge connected to the tester main body to support the tester main body.

The bridge may be detachably coupled to the testing machine body.

According to another aspect of the present invention, there is provided a method of controlling a flame detector, the method comprising: arranging a laser module mounted on an infrared flame detector to irradiate a laser beam with a main sensor for detecting a flame of a fire; Irradiating a laser beam to a main sensor of the infrared flame sensor through the laser module; And observing whether or not the infrared flame sensor is operated based on the irradiated laser light beam. The infrared flame sensor according to claim 1, wherein the infrared flame sensor is an infrared flame sensor.

According to the present invention, it is possible to easily test whether the infrared flame sensor operates properly even at a long distance.

Particularly, in the case of the present invention, since the laser is used, the test can be performed at a long distance without malfunction. Accordingly, there is no need to access the infrared flame detector installed at a high position by using the expensive ladder, In addition, there is an effect that the safety of the operator can be guaranteed.

Figure 1 shows the types of infrared flame detectors.
2 is a structural view of a long-distance testing machine for an infrared flame detector using a laser according to a first embodiment of the present invention.
3 is a use state diagram of Fig.
4 is a control block diagram of a long-distance testing machine for an infrared flame detector using a laser.
5 is a flowchart of a test method of an infrared flame sensor.
6 is a control block diagram of a long-range tester for an infrared flame detector using a laser according to a second embodiment of the present invention.
7 is a structural view of a long-range testing machine for an infrared flame detector using a laser according to a third embodiment of the present invention.
8 is a structural view of a long-range testing machine for an infrared flame detector using a laser according to a fourth embodiment of the present invention.
9 is a structural view of a long-distance testing machine for an infrared flame detector using a laser according to a fifth embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention and to fully disclose the scope of the invention to a person having ordinary skill in the art to which the present invention belongs. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. And (used) terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention.

In the present specification, the singular form includes plural forms unless otherwise specified. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 1 shows the types of infrared flame detectors.

Referring to FIG. 2, the infrared flame detectors 100a to 100c detect infrared rays (4.4 to 0.2 mu m) radiated from a flame in the event of a fire, and operate when the change of infrared rays becomes a certain amount or more.

As described above, the detection range of the infrared flame detectors 100a to 100c is 50 m, which is relatively wide in comparison with other detectors.

1 (a) to 1 (c), the infrared flame detectors 100a to 100c include one main sensor 101 having an infrared wavelength (4.4 탆 to 0.2 탆) The remainder are the sub-sensors 102 and 103 for analysis of the fire flame and not the fire flame.

When the number of sub-sensors 102 and 103 is large as shown in FIG. 1 (c), the analysis quality of the non-reflec- tion can be improved. Therefore, for example, the infrared flame sensor 100c of IR3 having many sub-sensors 102 and 103 as shown in Fig. 1 (c) is widely used.

Hereinafter, in the case of the present embodiment, a tester for testing the infrared flame sensor 100c of IR3 shown in FIG. 1 (c) will be described in detail with reference to FIG. 2 to FIG.

Of course, although the infrared flame detector 100c of IR3 is widely used, the scope of the present invention can also be applied to the infrared flame detector 100a of IR1 or the infrared flame detector 100b of IR2.

FIG. 2 is a structural view of a long-range tester for an infrared flame detector using a laser according to a first embodiment of the present invention, FIG. 3 is a use state diagram of FIG. 2, and FIG. 4 is a control block of a long- And Fig. 5 is a flow chart of a test method of an infrared flame sensor.

Referring to these drawings, the long range tester 110 for the infrared flame detector using the laser according to the present embodiment can easily test whether or not the infrared flame sensor operates properly even at a long distance. 120, a laser module 130, a telephoto lens unit 140, a switch operating unit 150, a bridge 160, and a controller 170. [

The tester main body 120 forms the appearance of the long range tester 110 for the infrared flame detector using the laser according to the present embodiment.

The tester main body 120 may include a laser module 130, a telephoto lens unit 140, a switch operating unit 150, a bridge 160, and a controller 170.

The bridge 160 is coupled to the tester main body 120 to test whether the infrared flame sensor is operated with the tester main body 120 standing on the ground, It is possible to test the operation of the infrared flame detector even in a gripped state, for example, on the shoulder.

The laser module 130 is provided on one side of the tester main body 120 and is mounted on the infrared flame detector 100c to irradiate the laser beam with the main sensor 101 for detecting a fire flame.

The output of the laser beam emitted from the laser module 130 is known to exhibit a large output energy in the range of 400 nm to 1,500 nm in the main optical wavelength or in the visible light and other infrared wavelength regions because the energy output is very strong.

As described above, in the present embodiment, by irradiating the laser beam to the main sensor 101 which is a fire detection sensor channel of the infrared flame detector 100c at a long distance using a laser capable of outputting infrared energy at a long distance, It is possible to operate the infrared flame detector 100c even at a long distance, for example, at a distance of about 10 m to 30 m, so that the infrared flame sensor 100c can be tested for its operation.

In other words, after the light beam output from the laser module 130 is focused on the main sensor 101, which is a fire detection sensor channel for detecting fire flame, among the sensors of the multiple channels of the infrared flame sensor 100c, When the flame is generated at the flicker frequency of 4 ~ 20HZ which is generated from the flame, the infrared flame detector 100c can recognize the flame as a fire flame and can operate the infrared flame detector 100c. have.

As described above, in the present embodiment, it is possible to easily test whether the infrared flame sensor 100c operates properly even if the infrared flame sensor 100c is close to the infrared flame sensor 100c by using the expensive ladder or the like. It is advantageous to further reduce the test time for all the infrared flame detectors 100c.

The telephoto lens unit 140 is provided at one side of the tester main body 120 and serves to confirm the position of the main sensor 101 mounted on the infrared flame sensor 100c at a long distance.

The position of the main sensor 101 mounted on the infrared flame sensor 100c can be clearly confirmed even if the distance is long.

The switch operating unit 150 is provided at one side of the tester main body 120 and serves to set a signal or a flame frequency for the operation of the laser module 130.

The switch operating unit 150 may include a plurality of buttons, but may also be implemented in the form of a touch panel or a touch pad.

The bridge 160 is connected to the tester main body 120 to support the tester main body 120. Thus, the bridge 160 can be applied in a plurality of ways.

When the bridge 160 is installed, the testing operation can be performed in a state in which the test apparatus main body 120, which is relatively heavy, is set in the correct position, and the test operation is advantageous.

Of course, as described above, it is preferable that the bridge 160 is detachably coupled to the tester main body 120 since the testing operation can be performed while carrying only the tester main body 120.

Finally, the controller 170 controls the operation of the laser module 130 through the laser module output circuit 135 on the basis of the input signal of the switch operating part 150.

Such a controller 170 may include a central processing unit 171 (CPU), a memory 172 (MEMORY), and a support circuit 173 (SUPPORT CIRCUIT).

The central processing unit 171 is connected to various computer processors that can be industrially applied to control the operation of the laser module 130 through the laser module output circuit 135 based on the input signal of the switch operating unit 150 in the present embodiment. Lt; / RTI >

The memory 172 (MEMORY) is connected to the central processing unit 171. The memory 172 may be a computer readable recording medium and may be located locally or remotely and may be any of various types of storage devices such as, for example, a random access memory (RAM), a ROM, a floppy disk, At least one or more memories.

The support circuit 173 (SUPPORT CIRCUIT) is coupled with the central processing unit 171 to support the typical operation of the processor. Such a support circuit 173 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 170 controls the operation of the laser module 130 through the laser module output circuit 135 based on the input signal of the switch operating unit 150. A series of processes and the like in which the controller 170 controls the operation of the laser module 130 via the laser module output circuit 135 based on the input signal of the switch operating part 150 can be stored in the memory 172 have. Typically, a software routine may be stored in memory 172. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

Hereinafter, a test method of the infrared flame sensor 100c will be described.

First, a laser module 130 mounted on an infrared flame detector 100c and irradiating a laser beam to a main sensor 101 for detecting a fire flame is arranged (S10). At this time, the entire position of the main body 120 of the tester may be adjusted, or the position of only the laser module 130 alone may be adjusted on the main body 120 of the tester.

Next, the laser beam is irradiated to the main sensor 101 of the infrared flame sensor 100c through the laser module 130 (S20).

Then, it is determined whether or not the infrared flame detector 100c is operated based on the irradiated laser beam (S30). That is, after the light beam output from the laser module 130 is focused on the main sensor 101 of the infrared flame sensor 100c, the flame is flicker flicker frequency 4 ~ 20HZ generated from the flame, The flame detector 100c may operate as a fire flame and can test whether the infrared flame detector 100c operates.

According to the present embodiment having the structure and operation as described above, it is possible to easily test whether the infrared flame sensor 100c operates properly even at a long distance.

Particularly, in the case of the present embodiment, since the laser is used, it is possible to perform a test without a malfunction even at a long distance, and there is no need to access the infrared flame detector 100c installed at a high position by using the expensive ladder, Not only can it be prevented, but also the safety of workers can be guaranteed.

6 is a control block diagram of a long-range tester for an infrared flame detector using a laser according to a second embodiment of the present invention.

Referring to this figure, a timer 280 is further attached to the controller 270, which is applied to the long-distance testing machine for the infrared flame detector using the laser according to the present embodiment.

When the timer 280 is further attached to the controller 270, the controller 270 operates the laser module 130 by the time set in the timer 280, so that unnecessary time during the test of the infrared flame sensor 100c It is possible to prevent a loss from occurring.

Even if the structure of this embodiment is applied, it is possible to easily test whether the infrared flame sensor 100c (see FIG. 1) operates properly even at a long distance.

7 is a structural view of a long-range testing machine for an infrared flame detector using a laser according to a third embodiment of the present invention.

The long range tester 300 for the infrared flame sensor using the laser according to the present embodiment also includes a tester main body 320, a laser module 330, a telephoto lens unit 340, a switch control unit 350, And a bridge 360.

In this structure, a rotating plate 380 for rotating the testing machine body 320 is further provided between the testing machine body 320 and the bridge 360. When the rotating plate 380 is further provided as in this case, there is an advantage that the irradiation direction of the laser beam through the laser module 330 can be easily changed even if the tester main body 320 is not rotated.

Even if the structure of this embodiment is applied, it is possible to easily test whether the infrared flame sensor 100c (see FIG. 1) operates properly even at a long distance.

8 is a structural view of a long-range testing machine for an infrared flame detector using a laser according to a fourth embodiment of the present invention.

The long range tester 400 for the infrared flame detector using the laser according to the present embodiment also includes a tester main body 420, a laser module 430, a telephoto lens unit 440, a switch operating unit 450, And a bridge 460.

In this embodiment as well, a rotating plate 480 for rotating the testing machine main body 420 is further provided between the testing machine main body 420 and the bridge 460. In addition, a vertical angle of the testing machine main body 420 is rotated Angle rotation portion 490 is further provided.

When the vertical rotation unit 490 is further provided, the vertical angle of the tester main body 420 can be rotated without adjusting the bridge 460, so that the irradiation direction of the laser beam through the laser module 430 can be facilitated There is an advantage that can be changed.

Even if the structure of this embodiment is applied, it is possible to easily test whether the infrared flame sensor 100c (see FIG. 1) operates properly even at a long distance.

9 is a structural view of a long-distance testing machine for an infrared flame detector using a laser according to a fifth embodiment of the present invention.

The long range tester 500 for the infrared flame detector using the laser according to the present embodiment also includes a tester main body 520, a laser module 530, a telephoto lens portion 540, a switch operating portion 550, And a bridge 560.

In this structure, the long distance tester 500 for the infrared flame detector using the laser according to the present embodiment is further provided with a module protection cap 590 for protecting the laser module 530. In fact, it may be desirable to protect the laser module 530 with the module protection cap 590, in view of the fact that the laser module 530 is the most expensive. The module protection cap 590 can be connected to the testing machine body 520 by the safety strap 595 so that the module protection cap 590 is not lost.

Even if the structure of this embodiment is applied, it is possible to easily test whether the infrared flame sensor 100c (see FIG. 1) operates properly even at a long distance.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

100a to 100c: Infrared flame detector 101: Main sensor
102, 103: Sub-sensor 110: Long range tester
120: tester main body 130: laser module
135: Laser module output circuit 140: Telephoto lens part
150: switch operating section 160: bridge
170: Controller

Claims (7)

A tester main body; And
And a laser module mounted on one side of the main body of the tester for irradiating a laser beam with a main sensor mounted on an infrared flame detector and detecting a fire flame.
The method according to claim 1,
Further comprising a telephoto lens unit provided at one side of the main body of the tester for checking the position of a main sensor mounted on the infrared flame detector at a long distance.
The method according to claim 1,
Further comprising a switch operating unit provided at one side of the main body of the tester for setting a signal or a flame frequency for operation of the laser module.
The method of claim 3,
Further comprising a controller for controlling an operation of the laser module through a laser module output circuit based on an input signal of the switch operating unit.
The method according to claim 1,
Further comprising a bridge connected to the main body of the tester to support the main body of the tester.
6. The method of claim 5,
Wherein the bridge is detachably coupled to the body of the tester.

A laser module placement step of placing a laser module mounted on the infrared flame detector and irradiating the laser beam with a main sensor for detecting a fire flame;
Irradiating a laser beam to a main sensor of the infrared flame sensor through the laser module; And
And observing whether or not the infrared flame sensor is operated based on the irradiated laser light beam.

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