KR102062525B1 - Smoke detector having function for test - Google Patents

Abstract

Disclosed is a smoke detector having a self-test function. According to one aspect of the present invention, the smoke detector having a self-test function comprises: a light emitting element for emitting light; a light receiving element for sensing light emitted from the light emitting element; a control module for determining whether a fire occurrence signal is output by using a sensing value of the light receiving element; and a smoke generation module for emitting smoke in a body when a self-test function is driven under the control of the control module.

Description

Smoke detector having function for test

The present invention relates to a fire detector, and more particularly to a smoke detector having a self-test function.

In order to check whether the fire detector is operating normally, the heat detector should be directly heated, and the smoke detector is sprayed with gas or other gas to check the reaction.

Accordingly, each fire detector carries out test equipment manufactured separately to inject heat or smoke individually to check the function of the detector.

However, this test method should be adjusted to the temperature or concentration suitable for the sensitivity of the fire detector. In reality, it is impossible to confirm whether the detector maintains its normal sensitivity because a large amount is continuously injected at a time until the detector is operated. As a result, a large amount of liquid gas applied to hot heat or smoke detectors applied to heat detectors at regular intervals of inspection results in shortening the life of fire detectors due to repeated tests.

Korea Utility Model Registration 20-0360319 (Registration date: Aug. 18, 2004) Smoke detector fire detector

Accordingly, the present invention has been made to solve the above-described problem, to provide a smoke detector that can perform a test remotely.

In addition, the present invention is to provide a smoke detector for testing the normal operation by generating smoke by itself without the need for a separate test equipment.

Further objects of the present invention will become more apparent through the preferred embodiments described below.

According to an aspect of the invention, the light emitting device for emitting light; A light receiving element for sensing light emitted from the light emitting element; A control module for determining whether to output a fire occurrence signal using the sensing value of the light receiving element; And when the self-test function is driven under the control of the control module, there is provided a smoke detector with a self-test function comprising a smoke module for releasing smoke in the body.

Here, the fume module may be provided in the main body to inject smoke in the form of a spray.

In addition, further comprising a communication module for communicating with a remote management device, when receiving a retest command from the management device, is installed on the lower end of the main body by applying heat to the fuming agent provided at the end second smoke for generating smoke The module may further include.

In addition, a plurality of the second fume module may be provided, and the control module may determine the number of the second fume modules to be operated according to the test step received from the management apparatus.

In addition, the fume module is installed at the lower end of the main body, may be provided at the end may include a heat generating unit for applying heat to the smoke generating agent when the heat is applied.

According to the present invention, by providing a smoke detector to test the normal operation by generating smoke itself, it is possible to perform the test remotely without the need for a separate test equipment.

1 is a schematic diagram showing a fire detection system for a remote test according to an embodiment of the present invention.
2 is a plan view for explaining the operation principle of a general photoelectric smoke detector.
Figure 3 is a block diagram showing a part of the configuration of the smoke detector with a self test function according to an embodiment of the present invention.
4 and 5 are a plan view and a front sectional view showing an implementation method of a fume module for a self-test function according to each embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, terms such as a first threshold value, a second threshold value, and the like, which will be described later, may be pre-specified as threshold values that are substantially different or partially the same value, but may be confused when expressed with the same word. For the sake of convenience, the terms "first" and "second" will be written together for convenience of classification.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

In addition, the components of the embodiments described with reference to the drawings are not limited to the corresponding embodiments, and may be implemented to be included in other embodiments within the scope of the technical spirit of the present invention. Even if the description is omitted, it is obvious that a plurality of embodiments may be reimplemented into one integrated embodiment.

In addition, in the description with reference to the accompanying drawings, the same components regardless of reference numerals will be given the same or related reference numerals and redundant description thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a schematic view showing a fire detection system for a remote test according to an embodiment of the present invention.

Referring to FIG. 1, the fire detection system according to the present embodiment includes a plurality of smoke detectors 10-1, 10-2,..., 10-n, hereinafter referred to as 10, and a management device 50. .

In particular, since the smoke detector 10 according to the present embodiment has a self-test function, the management device 50 may test the performance of the smoke detectors 10 remotely.

In general, when the smoke detector 10 detects smoke due to fire, the smoke detector 10 generates a fire signal and transmits the signal to a remote management device 50 (generally called a reception panel) through a network, and the management device 50 receives the signal. In response to the fire occurrence signal, a notification of a fire occurrence is processed (for example, alarm or siren driving).

Figure 2 is a plan view for explaining the operation principle of a general photoelectric smoke detector, Figure 3 is a block diagram showing a partial configuration of a smoke detector with a self-test function according to an embodiment of the present invention.

First, referring to FIG. 2, a smoke detector for detecting smoke mainly uses a photoelectric smoke detector using scattered light by smoke. In the photoelectric smoke detector, light having a linearity emitted from a light emitting device such as an LED does not normally enter the light receiving element, but is scattered by the smoke introduced into the main body due to a fire, and part of the light is emitted to the light receiving element. It is to detect the fire by using whether or not it is introduced. In addition to the scattering method, although not shown in the drawing, there is also a photosensitive sensing type. In the case of the photosensitive method, light from the light emitting device is disposed to directly enter the light receiving device, and a part of the light is scattered and introduced by the smoke. If the amount of light is less, it is recognized as a fire. It will be apparent to those skilled in the art through the following descriptions that not only the photoelectric smoke detection method but also all types of smoke detection methods may be applied to the self-test function described below.

Referring to FIG. 3, which shows a configuration for a self test function of a smoke detector, the smoke detector according to the present embodiment includes a fume module 310.

In the case of the photoelectric smoke detector, a control module 320 for determining whether to output a fire signal by using a light emitting device for emitting light, a light receiving device for sensing light emitted from the light emitting device, and a sensing value from the light receiving device. If the self-test function is driven under the control of the control module 320, it further comprises a smoke-smoke module 310 for releasing smoke in the body.

The smoke detector further includes a communication module 330 for communicating with a remote management device, and the control module 320 receives a command to drive a self-test function from the management device through the communication module 330. The self-test function is performed by driving the fume module 310.

In other words, the smoke detector according to the present embodiment can operate a self-test function according to a command from a remote management apparatus, so that a plurality of smoke detectors can be checked remotely from an administrator's point of view. For example, the management device transmits a self-test command to the first smoke detector and remotely checks whether the fire occurrence signal is received from the smoke detector as the first smoke detector drives the self-test. You can do a test on it.

In addition, since the self-test function in the smoke detector is to check whether the smoke actually generated by the provided smoke module 310 is normally detected, the accuracy of the test is higher.

Hereinafter, the implementation method of the fume module 310 will be described in detail.

4 and 5 are a plan view and a front sectional view showing an implementation manner of a fume module for a self-test function according to each embodiment of the present invention.

First, referring to FIG. 4, the fume module 310 may be implemented by a fume spray 430 provided inside the main body. The fuming spray 430 is a form of discharging a certain amount of smoke under the control of the control module 320, such as a smoke check spray (SMOKE CHECK SPRAY) still on the market. It can be implemented as. Since spray is driven by electrical control in various fields such as spraying by electrical control in a public toilet, a driving method of the fuming spray 430 will be apparent to those skilled in the art without detailed description. .

In other words, according to the present embodiment, when the self test function is driven, the smoke is emitted from the fuming spray 430 under the control of the control module 320 of the smoke detector, and the smoke is emitted from the light emitting element 410 by the emitted smoke. The amount of light transmitted to the light receiving element 420 is changed to determine whether a fire occurrence signal is normally transmitted to the management device, thereby determining whether the corresponding smoke detector is normally operated.

Referring to FIG. 5, which shows another embodiment of a fume module, a fume module may include a smoke agent (510-1, 510-2, hereinafter referred to as 510) and a heat generating unit (520-1, 520-2, 520 referred to below). It includes. The smoke agent 510 is a material in which a part of the smoke is generated when smoke is applied, and the heat generator 520 is a means for applying heat to the smoke agent 510. For example, the heating unit 520 is provided with a coil therein to generate heat when electricity is applied, and heat is transferred to the smoke 510 provided at the end of the heating unit 520 so that the smoke 510 burns partly. As a result, smoke is generated. Smoke generated from the smoke 510 is introduced into the main body 500, and likewise it is possible to perform a self test.

In this embodiment, when the self-test function is performed, the smoke agent 510 may be partially or totally burned, and thus the smoke agent 510 may be manufactured to be attached or mounted to the end of the heating unit 520 so as to be replaced. . In addition, a plurality of fume modules according to the present embodiment may be provided as shown in order to delay the replacement time. For example, if two are provided, at least two self-test functions may be performed.

In addition, according to another embodiment, when a plurality of smoke modules are provided as shown in Figure 5, the test can be divided into a plurality of stages, for example, one smoke module operates in the first stage test, In the second stage, two fume modules operate. In other words, the higher the test step, the greater the number of fume modules operating and the more smoke is emitted. Since the smoke detector is installed and the function of detecting smoke may become weaker as time passes, it is to perform self-test in multiple stages. In other words, if the low test does not recognize the fire as normal, it can be stepped up to check whether the fire is recognized.

According to another exemplary embodiment, a fuming spray 430 as shown in FIG. 4 may be provided as a first fuming module, and a method using a fuming agent 510 as shown in FIG. 5 may be provided as a second fuming module, respectively. . In this case, for example, the self-test function using the first fume module may be performed first, and if it is determined that it is abnormal (that is, when a fire occurrence signal is not normally output), the self-test function using the second fume module may be performed again. have. That is, the smoke detector performs the self test function using the second smoke module again when the retest command is received from the management apparatus after performing the self test function using the first smoke module. Of course, the present invention is not limited thereto, and the order in which the self-test functions of the first and second smoke modules are performed may be changed.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

10: smoke detector
50: management device
310: smoke module
320: control module
330: communication module
410: light emitting element
420: light receiving element
430: fuming spray
500 body
510-1, 510-2: Smoke Retardant
520-1, 520-2: heating unit

Claims (5)

Light emitting device for emitting light;
A light receiving element for sensing light emitted from the light emitting element;
A control module for determining whether to output a fire occurrence signal using the sensing value of the light receiving element;
A first fuming module provided in the main body to inject smoke in a spray form;
A plurality of second fuming modules installed at a lower end of the main body and including a heating unit for applying the heat to a fuming agent that generates smoke when heat is applied to allow the smoke to flow into the main body from the outside; And
Including a communication module for communicating with a remote management device,
When it is determined that the control module is abnormal as a result of the test by the first fume module, the control module performs a further test using the second fume module, but operates in response to the test step received from the management apparatus. Smoke detector with self test function to determine the number. delete delete delete delete

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