KR101832137B1 - Sensor Test Apparatus and Sensing Correction Value Calculation Method in accordance with the Smoke Density - Google Patents

Abstract

The present invention relates to a sensor testing apparatus and a sensing correction value calculating method in accordance with smoke concentration, and collects RGB values, distance values, infrared information and the like of a test board through a sensing device while injecting smoke of a predetermined concentration into a test chamber , It is possible to construct a database that compares the image with the RGB value, the distance value, the infrared information, etc. in a state in which no smoke is present to calculate the correction value, thereby correcting the image of the disaster scene to accurately grasp the disaster situation.

Description

[0001] The present invention relates to a sensor test apparatus and a method of calculating a sensing correction value according to smoke concentration,

The present invention relates to a sensor testing apparatus and a sensing correction value calculating method according to a smoke concentration, and more particularly, to a sensor testing apparatus and a sensing correction value calculating method for measuring a sensor value of an RGB value, infrared information, A test apparatus, and a method for calculating a sensing correction value capable of correcting the occurrence of a disaster such as a disaster in consideration of the degree of change.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

Recently, there have been more complicated and diverse disasters due to factors such as rapid climate change and urban development. Active research has been conducted in various fields in order to respond quickly and efficiently in such a disaster situation.

On the other hand, accurate transmission of information on the disaster scene in real time is an important issue in resolving the disaster situation, and in particular, it is required to acquire accurate image information of the disaster scene in real time in order to accurately grasp the situation of the disaster scene.

However, when images are transmitted by simply photographing a scene of a disaster by using a camera or the like, some objects such as smoke, dust, ashes, and the like generated in a disaster are covered by a disaster area. There was a problem that it was difficult to prepare an accurate countermeasure against a disaster situation.

Korean Patent No. 1016609 (name: sensor test device, published on May 4, 2010).

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to fill a test chamber with smoke as much as a smoke concentration to be measured, measure RGB values, distance values, By comparing the RGB value, the distance value, the infrared information, and the like in a state in which there is no smoke, the necessary correction value is calculated when correcting the image, so that when the image is transmitted in a disaster scene or the like, And to provide a sensor test apparatus and a method of calculating a sensing correction value.

According to an aspect of the present invention, there is provided a sensor testing apparatus including a sealed test chamber in which a test object sensing device is installed, a test board provided in the test chamber so as to face the sensing device, , A sensor test section comprising a smoke concentration meter for measuring the smoke concentration in the test chamber, a combustion section for generating and delivering the smoke to the inside of the test chamber, and the smoke concentration measured by the smoke concentration meter, And a smoke concentration control unit for controlling the combustion unit to maintain a predetermined smoke concentration therein.

The sensor testing unit may further include at least one fan for uniformly dispersing the smoke delivered from the combustion unit in the test chamber. The sensor testing unit may be connected to a duct connecting port provided in the test chamber, And a duct for discharging the smoke existing in the test chamber to the outside of the sensor test chamber. The sensor testing unit may further include one or more illumination devices for adjusting the illuminance inside the test chamber can do.

In addition, the sensing device may include an RGB camera including a camera sensor for sensing RGB values of the test board, a laser scanner including an LRF (Laser Range Sensor) sensor for measuring a distance to the test board, And a thermal imaging camera including an infrared sensor that senses information.

According to another aspect of the present invention, there is provided a method for calculating a sensing correction value according to smoke concentration, the method comprising the steps of: setting a smoke concentration by a sensor testing apparatus; generating smoke through a combustion unit of the sensor testing apparatus, Measuring a smoke concentration in the test chamber, comparing the measured smoke concentration with the set smoke concentration, and confirming whether the smoke concentration has reached the set smoke concentration; Collecting a sensed value of a sensing device installed in the test room facing a test board having a predetermined test pattern formed therein, when the set smoke concentration is reached, and calculating a correction value at the set smoke concentration on the basis of the sensed value And a step of calculating the number of steps.

The method may further include the step of uniformly dispersing the smoke in the test chamber through the at least one fan installed in the test chamber after the delivering step, And discharging the smoke existing in the test chamber to the outside.

Further, before the collecting step, the method may further include controlling one or more lights installed in the test room to adjust the illuminance in the test room, and the collecting may include: A distance value between the sensing device and the test board, and a sensing value of at least one of the infrared information of the test board.

According to the present invention, RGB values, distance values, infrared information and the like of a test board are collected through a sensing device in a state of injecting a predetermined concentration of smoke into a test chamber, and the RGB values, distance values, It is possible to construct a database for calculating a correction value in comparison with information or the like so that an image of a disaster scene is corrected to accurately grasp a disaster situation.

In addition, various effects other than the above-described effects can be directly or implicitly disclosed in the detailed description according to the embodiment of the present invention to be described later.

1 is a view for explaining a main configuration of a sensor testing apparatus according to the present invention.
2 is a diagram showing a main configuration of a sensor testing unit of a sensor testing apparatus according to the present invention.
3 is a flowchart illustrating a method of calculating a sensing correction value according to smoke concentration according to an embodiment of the present invention.
4 is an exemplary diagram for explaining an example of calculation of a correction value according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS For a more complete understanding of the nature and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings, in which:

In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

The terms and words used in the following description and drawings are not to be construed in an ordinary sense or a dictionary, and the inventor can properly define his or her invention as a concept of a term to be described in the best way It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

Also, terms including ordinal numbers such as first, second, etc. are used to describe various elements, and are used only for the purpose of distinguishing one element from another, Not used. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is also to be understood that the terms such as " comprising "or" having ", as used herein, are intended to specify the presence of stated features, integers, It should be understood that the foregoing does not preclude the presence or addition of other features, numbers, steps, operations, elements, parts, or combinations thereof.

Also, the terms "part," "module," and the like, which are described in the specification, refer to a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software. Also, the terms " a or ", "one "," the ", and the like are synonyms in the context of describing the invention (particularly in the context of the following claims) May be used in a sense including both singular and plural, unless the context clearly dictates otherwise.

In addition to the above-described terms, certain terms used in the following description are provided to facilitate understanding of the present invention, and the use of such specific terms may be changed to other forms without departing from the technical idea of the present invention.

Now, a sensor test apparatus according to the present invention and a sensing correction value calculating method according to smoke concentration using the same will be described in detail with reference to the drawings.

1 is a view showing a configuration of a sensor testing apparatus according to the present invention.

Referring to FIG. 1, a sensor testing apparatus according to the present invention may include a sensor testing unit 100, a combustion unit 200, and a smoke concentration control unit 300.

The sensor testing unit 100 is an apparatus constituting an environment for measuring the sensed value at the set smoke concentration.

2, the sensor testing unit 100 may be configured to be a sealed test chamber for measuring a sensed value at a set smoke concentration, A sensing device 400 to be a test object and various devices for measuring a sensed value at a set smoke concentration may be constructed.

That is, FIG. 2 is a diagram showing the inside of the test chamber.

More specifically, in addition to the sensing device 400, a test board 110, a smoke concentration meter 130, one or more fans 150, a duct connector 170, and one or more lighting devices 190 ). ≪ / RTI >

The test board 110 is installed so as to face the sensing device 400. In this test board 110, a certain test pattern is formed, and the patterns may have different colors, i.e., different RGB values.

The smoke concentration meter 130 measures the smoke concentration in the test chamber and transmits the measured smoke concentration value to the smoke concentration control unit.

Since it is difficult to accurately measure the concentration of smoke when the foreign substance discharged from the smoke or the like is buried in the smoke concentration measuring instrument 130, the air curtain device (not shown) may be connected to the smoke concentration meter 130 or the smoke concentration meter 130 So that foreign matter can be prevented from being deposited.

The fan 150 is an apparatus for uniformly dispersing the smoke delivered from the combustion unit 200 to the test chamber. The fan 150 operates one or more fans 150 installed in a uniform arrangement in the test chamber, By circulating the smoke in the test chamber, it is possible to make more accurate experiments.

The duct connector 170 is a place for installing a duct.

After the test is completed, the smoke existing in the test chamber can be discharged to the outside of the test chamber through a duct connected to the duct connector 170.

That is, the duct (Duct) is not connected to the duct connector and discharges the smoke existing in the test chamber to the outside of the test chamber.

The illuminating device 190 is a device for adjusting the illuminance inside the test chamber. It can also detect the change in the sensing value according to the illuminance change, and can also be used to maintain a constant change in the illuminance, have.

The at least one lighting device 190 may be any lighting device capable of adjusting the illuminance inside the test room such as an incandescent lamp, a fluorescent lamp, and an LED.

The sensing device 400 is installed at a position where the test board 110 installed in the test chamber can be sensed and senses the test board 110 when the smoke concentration reaches the set smoke concentration inside the test chamber.

The sensing device 400 may be at least one of an RGB camera, a laser scanner, and a thermal imaging camera. The RGB camera includes a camera sensor, and senses RGB values of each pattern formed on the test board 110.

The laser scanner includes an LRF (Laser Range Finder) sensor, and measures the distance between the sensing device 400 and the test board 110.

The thermal imaging camera includes an infrared sensor and senses infrared information of each pattern formed on the test board 110.

The sensing device 400, which measures the sensed value according to each type of sensor, compares the sensing value according to the set smoke concentration with the sensed value when there is no smoke in the test room, have.

The combustion unit 200 is a device for generating smoke and delivering the smoke into the test chamber of the sensor testing unit 100.

The combustion unit 200 may include a combustion device (not shown). The combustion device (not shown) generates heat by applying heat to a specific material, thereby generating smoke.

At this time, the specific substance may be paper for smoke detector test, and the combustion device (not shown) may be a heater.

Specifically, the combustion device (not shown) can smoke the smoke-purging test paper to generate smoke, and the smoke generated by the smoke is naturally introduced into the test chamber of the sensor testing section 100 due to the ascending nature.

If the combustion unit 200 is installed on the side or upper part of the sensor test unit 100 but not on the lower side of the sensor test unit 100, the smoke generated by the combustion unit 200 Forcibly flows into the test chamber.

Of course, even if the combustion unit 200 is installed at the lower end of the sensor test unit 100, it is possible to introduce the smoke into the test chamber through the fan 150.

When the inside of the test chamber reaches the set smoke concentration, the combustion unit 200 stops the combustion process under the control of the smoke concentration control unit 300.

The smoke concentration control unit 300 determines whether or not the combustion unit 200 continues to be burned by confirming that the smoke concentration in the test chamber has reached the preset smoke concentration.

That is, the smoke concentration control unit 300 controls the combustion unit 200 so that the inside of the test chamber is maintained at a predetermined smoke concentration.

The smoke concentration controller 300 is connected to the smoke concentration meter 130 installed in the test chamber and determines whether the smoke concentration measured by the smoke concentration meter 130 has reached a preset smoke concentration, The combustion of the combustion unit 200 is stopped to maintain the smoke concentration in the test chamber.

Now, a method of calculating the above-described sensing correction value will be described with reference to FIG.

Referring to FIG. 3, a smoke concentration is set through the smoke concentration control unit 300 of the sensor test apparatus (S101).

The combustion unit 200 generates smoke and transfers the smoke to the sensor test unit 100, that is, the test chamber (S103).

At this time, one or more fans (150) installed in the test chamber are operated to disperse the smoke uniformly in the test chamber (S105), and one or more lighting devices (190) And the smoke concentration inside the test chamber is measured through the smoke concentration measuring device 130.

Then, the measured smoke concentration is compared with the set smoke concentration, and it is confirmed whether the smoke concentration has been reached (S107).

Thereafter, when the set smoke concentration is reached, the sensing device 400 senses the test board 110 (S109) and collects sensing values according to the set smoke concentration (S111).

The sensing value may be one of the RGB value of the test board 110, the distance between the sensing device 400 and the test board 110, and the infrared information of the test board 110, as described above.

Thereafter, the sensing device 400 compares the sensed value with the sensed value in the absence of smoke in the test chamber (S113), and stores the calculated correction value (S115) .

Thereafter, when the test is completed, the smoke can be discharged to the outside through a duct installed in the test chamber.

FIG. 4 shows an example of the sensing values collected in steps S113 and S115 of FIG.

It is assumed that the smoke concentration is set to 80% in step S101 of FIG.

FIG. 4 (a) is a view of sensing the RGB values when the smoke concentration is 0% and 80%, and the sensing device 400 calculates the sensing correction value based on the difference of the sensed RGB values.

FIG. 4B is a graph showing a distance value according to the smoke concentration. It can be easily seen that the larger the smoke concentration is, the smaller the distance value, and the distance correction value according to the smoke concentration is calculated And stores it.

FIG. 4 (c) is obtained by sensing the infrared information when the smoke concentration is 0% and 80%, and the sensing correction value is calculated and stored based on the sensed infrared information.

As described above, the present specification contains details of a number of specific implementations, but they should not be construed as being limitations on the scope of any invention or claimability, but rather on the particular embodiment of a particular invention But should be understood as an explanation of the features.

In addition, although the operations are depicted in the drawings in a particular order, it should be understood that such operations must be performed in that particular order or sequential order shown to obtain the desired results, or that all illustrated operations should be performed.

In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products It should be understood.

The description sets forth the best modes of the present invention and provides examples for the purpose of illustrating the invention and enabling a person skilled in the art to make and use the invention.

The written description is not intended to limit the invention to the specific terminology presented.

Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art will recognize that modifications, changes, and modifications can be made thereto without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited by the described embodiments but should be defined by the claims.

The present invention relates to a sensor testing apparatus and a sensing correction value calculating method according to a smoke concentration, and more particularly, to a sensor testing apparatus and a sensing correction value calculating method for measuring a sensor value of an RGB value, infrared information, A test apparatus, and a method for calculating a sensing correction value capable of correcting the occurrence of a disaster such as a disaster in consideration of the degree of change.

According to the present invention, RGB values, distance values, infrared information and the like of a test board are collected through a sensing device in a state of injecting a predetermined concentration of smoke into a test chamber, and the RGB values, distance values, It is possible to construct a database for calculating a correction value in comparison with information or the like so that an image of a disaster scene is corrected to accurately grasp a disaster situation.

Therefore, it is possible to contribute to the disaster site structure and recovery industry development through the above-described sensor test apparatus. In addition, the present invention is industrially applicable because it has a possibility of being commercially available or operating, .

100: Sensor test section 200: Combustion section 300: Smoke concentration control section
110: test board 130: smoke concentration meter 150: fan
170: Duct connector 190: Lighting device 400: Sensing device

Claims (10)

A test board provided in the test chamber so as to face the sensing device and having a predetermined test pattern formed thereon, and a smoke concentration meter for measuring a smoke concentration in the test chamber, Test section;
A combustion unit for generating smoke and delivering the smoke to the inside of the test chamber; And
A smoke concentration control unit for checking the smoke concentration measured by the smoke concentration meter and controlling the combustion unit to maintain a predetermined smoke concentration in the test room;
Including the
Collecting the sensed value of the test subject sensing device at the set smoke concentration, calculating a correction value at the set smoke concentration based on the sensed value,
The sensor testing unit
One or more fans for uniformly dispersing the smoke delivered from the combustion unit in the test chamber;
A duct connected to a duct connecting port provided in the test chamber for discharging the smoke existing in the test chamber to the outside of the test chamber;
At least one illuminating device for adjusting illuminance inside the test chamber;
Further comprising:
The test subject sensing device
An RGB camera including a camera sensor for sensing RGB values of the test board, a laser scanner including an LRF (Laser Range Finder) sensor for measuring a distance to the test board, and an infrared sensor And a thermal imaging camera including the thermal imaging camera. delete delete delete delete Setting the smoke concentration of the sensor test apparatus;
Generating smoke through a combustion unit of the sensor test apparatus and transmitting the generated smoke to a test chamber of the sensor test apparatus;
Measuring a smoke concentration in the test chamber;
Comparing the measured smoke concentration with the set smoke concentration to confirm that the set smoke concentration has been reached;
Collecting a sensing value of a test object sensing device installed in the test room so as to face the test board on which a predetermined test pattern is formed when the set smoke concentration is reached; And
Calculating a correction value at the set smoke concentration based on the collected sensing value;
Lt; / RTI >
After the delivering step
Uniformly dispersing the smoke in the test chamber through one or more fans installed in the test chamber;
Discharging the smoke existing in the test chamber to the outside through a duct (Duct) installed in the test chamber;
Further comprising:
Prior to the collecting step,
Controlling at least one illumination installed in the test chamber to adjust illuminance in the test chamber;
Further comprising:
The collecting step
A sensing value for at least one of an RGB value of the test board, a distance value between the test subject sensing apparatus and the test board, and infrared information of the test board is collected.
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