KR101960021B1 - Drone and System for diagnosing an electric manhole - Google Patents

Abstract

According to one embodiment of the present invention, an electric manhole diagnosis system includes: a drone photographing a manhole to which an identification number is assigned and measuring an oxygen concentration in the manhole; and a mapping unit mapping the measured oxygen concentration and at least one or more photographed image of the manhole taken by the drone about each of the manhole to which the identification number is assigned, wherein the identification number assigned to the manhole is GPS position information, and the mapping unit performs mapping by using the GPS position information of the manhole.

Description

[0001] The present invention relates to a drone and an electric manhole diagnosis system for diagnosing an electric manhole,

The present invention relates to a method of diagnosing a manhole and updating manhole information. More particularly, it relates to a method for updating manhole information in a new distribution information system.

NDIS (New Distribution Information System) refers to a new distribution information system for efficiently managing and operating massive distribution facilities. To date, 9714 distribution lines, 883 million supports, and more than 208 million transformers have been registered and managed in the new distribution information system.

However, there is a problem in that a person enters the electric manhole directly, shoots the inside of the manhole, performs oxygen concentration measurement, etc., and inputs and processes the new distribution information system. The reliability is lowered and the management cost is increased.

Manholes are typically filled with equipment, located below the ground, difficult to access, and more difficult to repair and maintain. In addition, when a man enters directly into a manhole, the oxygen concentration inside the manhole is less than 10%, pale pale face, unconsciousness and vomiting occur, and if it is 8%, it is dead within 7 ~ 8 minutes.

KR00001662071b1

In the present invention, the concentration of oxygen in the manhole and the image of the inside of the manhole are to be performed using the drone. Through this, it is possible to receive the oxygen concentration measurement value obtained from the drone and the image of the inside of the manhole in real time, input it into the new distribution information system, and process it. Also, it is possible to prepare for safety problems such as suffocation due to lack of oxygen in a manhole.

As a preferred embodiment of the present invention, the electro-manhole diagnosis system comprises a drone for photographing a manhole having an identification number and measuring the oxygen concentration inside the manhole; And a mapping unit for mapping the measured oxygen concentration to at least one photographed image of the manhole taken by the drone for each of the manholes to which the identification number is assigned, The number is GPS position information, and the mapping unit performs mapping using the GPS position information of the manhole.

In one preferred embodiment of the present invention, the electro-manhole diagnosis system includes a manhole data map in which information of a manhole located in a predetermined area based on a new distribution information system is stored; And a display unit for receiving the information mapped by the mapping unit and displaying the information on the manhole data map.

In a preferred embodiment of the present invention, the drones include at least one image capturing device and an oxygen concentration measuring device, and the at least one image capturing device includes a thermal imager.

In a preferred embodiment of the present invention, the thermal imaging camera photographs an underground cable connection portion provided in the manhole based on a new distribution information system.

In one preferred embodiment of the present invention, the mapping unit maps the photographed image of the facility installed on each wall surface of the manhole, the infrared image of the underground cable portion of the manhole taken by the infrared camera, and the oxygen concentration measurement value of the manhole In this case, the mapping unit transmits a notification to the display unit when mapping is not performed because the thermal image is not captured, or when the indirect temperature detected in the thermal image exceeds a predetermined value.

In one preferred embodiment of the present invention, the display unit displays a photograph of the four-sided wall surface at each manhole to which the identification number is assigned on the manhole data map. In this case, the display unit displays at least one photograph of each of the four- And the change of equipment installed inside the manhole can be checked according to time.

As a preferred embodiment of the present invention, the electro-manhole diagnosis system uses a drone to check the state of the inside of the manhole, so that it is more accurate and safe than when the person measures the manhole internal data and inputs it into the new distribution information system Data can be processed. In addition, the worker can be protected from harmful gas and ventilation due to downward draft of the dron can be effected.

Fig. 1 shows an internal configuration diagram of an electro-manhole diagnosis system according to a preferred embodiment of the present invention.
FIG. 2 is a preferred embodiment of the present invention, showing an example in which a drone is monitored inside a manhole.
3 shows an image of four walls inside a manhole taken by a drone as a preferred embodiment of the present invention.
4 (a) to 4 (b) illustrate an embodiment of the present invention, in which an underground cable connection portion provided in a manhole is photographed by a drones by a radiographing apparatus and an infrared image taken by a radiographer Respectively.
FIG. 5 illustrates an example of mapping the facility photographs inside the manhole, the infrared image inside the manhole, and the oxygen concentration inside the manhole in chronological order in a preferred embodiment of the present invention.
FIG. 6 illustrates an example of displaying monitoring information received from a drone on a manhole data map according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

The new distribution information system supports geographical information system (GIS) technology based on the database construction system to provide integrated management of distribution plan, design, construction management, facility operation and distribution of the extension instrument.

The database used in the new distribution information system includes GIS facilities including information on electric pole, electric cable, cable, manhole, etc. of KEPCO as well as national geographical features such as database, intellectual property, lot number, administrative boundary, (D / L), which is composed of the National Basic Database, a design record database containing information on various facilities on the facility map created at the time of distribution design, a section, and a high-pressure facility. .

The database used in the new distribution information system is a system for searching the substation by the computerized number, the name of the line, the line number, the substation by the establishment, the name of the distribution line (D / L) In addition to searching by entering a number, it supports search using various methods such as administrative area name, address, building name, method of searching road name. When searching for a manhole, it can be identified using the name of the track with the manhole installed, the identification number assigned to the manhole, and identification of equipment installed inside the manhole can be identified using a similar method. In addition, when selecting the equipment, it is possible to check the equipment-specific information and space information.

In one preferred embodiment of the present invention, the electro-manhole diagnostic system 100 utilizes a database used in a new distribution information system. The electro-manhole diagnostic system 100 includes a dron 110 and a user terminal 150. The drone 110 may include a monitoring unit 120 and a transmitting unit 140, and may further include a first mapping unit 130. The user terminal 150 may include a manhole data map 154, a display unit 156, and a control unit 158, and may further include a second mapping unit 152.

The electro-manhole diagnostic system 100 may be configured such that at least one of the drone 110 or the user terminal 150 includes a first mapping unit 130 or a second mapping unit 152 .

In one preferred embodiment of the present invention, the monitoring unit 120 includes at least one image capturing device and an oxygen concentration measuring device. Also, at least one imaging device may include at least one thermal imaging camera.

In one preferred embodiment of the present invention, the monitoring unit 120 receives a photograph of each wall surface of a manhole photographed by at least one image photographing apparatus, and oxygen concentration information within a manhole measured by an oxygen concentration measuring instrument. At least one image capturing device can capture facilities inside a manhole, and a thermal imaging camera can provide an infrared image to a facility inside a manhole. The thermal imaging camera can be equipped with a rotatable LCD display, which can capture the top, bottom and each wall of the manhole.

In a preferred embodiment of the present invention, an underground cable connecting portion (refer to FIG. 4 (b)) provided inside the manhole can be photographed using a thermal imaging camera. As a preferred embodiment of the present invention, the underground cable can be installed based on the new distribution information system, and each cable can be given an identification number. In addition, information on which position of each cable is connected to the inner wall of the manhole can be stored in the database.

As a preferred embodiment of the present invention, the electro-manhole diagnostic system 100 can indirectly measure the temperature of the manhole's interior equipment using the infrared image of the thermal imaging camera. Referring to FIG. 4 (b), the electro-manhole diagnostic system 100 can provide temperature information 410, 420, and 430 of an underground cable connection portion provided inside a manhole from an infrared image. Referring to FIG. 4 (b), it can be seen that the Bx1 410 point is in the range of 53.0 to 70.7 degrees, the Bx2 420 point is in the range of 42.1 to 75.3 degrees, and the Bx3 430 point is in the range of 42.4 to 50.2 degrees have.

In the preferred embodiment of the present invention, when the processor of the drones 100 detects an area exceeding a predetermined temperature in the infrared image as a result of the image processing of the infrared image taken by the thermal imaging camera, an alarm is displayed on the display unit 156 This is possible.

As a preferred embodiment of the present invention, referring to the infrared image shown in FIG. 4B, if the temperature of the Bx2 420 is higher than a predetermined temperature, for example, 70 degrees, The alarm information 421 indicating that a danger may occur on the inner wall of the manhole to which the temperature information of the point Bx2 420 and the point Bx2 420 is connected may be displayed on the display unit 156. [

In a preferred embodiment of the present invention, when a plurality of image capturing apparatuses are provided in the monitoring unit 120, each of the plurality of image capturing apparatuses may simultaneously display different walls inside a manhole at a predetermined time interval or at random times As shown in FIG. Further, each of the plurality of image capturing apparatuses can photograph the same wall in the manhole at different angles, at the same time or at regular time intervals or at a random time.

In one preferred embodiment of the present invention, the monitoring unit 120 may display alarm information on the display unit 156 indicating that a danger may occur when the oxygen concentration measured by the oxygen concentration meter exceeds a predetermined value .

5, the first mapping unit 130 or the second mapping unit 152 may include at least one photographed image photographed by the monitoring unit 120, an infrared image, The oxygen concentration can be mapped. When the inside of the manhole having the same identification number is monitored a plurality of times by the monitoring unit 120, the monitoring information can be mapped according to the time sequence (see FIG. 5, 511 and 512).

As a preferred embodiment of the present invention, the manhole data map 154 refers to a map in which manhole information located in a predetermined area is stored in advance, and can be implemented using information in a database of the new distribution information system.

The manhole data map 154 may be displayed on the display unit 156 in the form of a map as in the embodiment shown in FIG. 6, and may be displayed on the map on which the manhole is displayed, Oxygen concentration information, and the like can be further displayed. The manhole data map 154 may also display the mapping information received by the first mapping unit or the second mapping unit 130 or 152 through the display unit 156. The control unit 158 can control the second mapping unit 152, the manhole data map 154, and the display unit 156, and can also control the flight of the drone.

FIG. 2 is a preferred embodiment of the present invention, showing an example in which a drone is monitored inside a manhole. The user 210 may control the drones 211 outside the manhole and the drones 220 may transmit the oxygen concentration data, infrared image data, or image data measured in the manhole to the user through wireless communication.

FIG. 3 shows images (310, 320, 330, 340) of four walls of a manhole in the drone. In a preferred embodiment of the present invention, the drone can photograph all the wall surfaces constituting the inside of the manhole, and can further photograph the lower and upper portions.

4 (a) to 4 (b) illustrate an embodiment of the present invention, in which an underground cable connection portion provided in a manhole is photographed by a drones by a radiographing apparatus and an infrared image taken by a radiographer Respectively.

In a preferred embodiment of the present invention, the drones are provided with an image taken by a general image photographing apparatus and an infrared image, so that an apparent image and an infrared image of an underground cable connecting portion can be compared together. In the infrared image 4 (b), an alarm 421 can be displayed on the display unit when the temperature of the underground cable connection part is detected to be high.

FIG. 5 shows an example of performing mapping in the mapping unit, which is a preferred embodiment of the present invention. The mapping unit is configured to capture photographed images 520, 521, 522, 523, and 524 of facilities installed on each wall of the manhole for manholes 511 and 512 to which the identification number 510 is assigned, The infrared image 530 photographed by the user and the oxygen concentration measurement value 540 of the manhole can be mapped. In this case, the identification number 510 gives the GPS address of the manhole or a predetermined number.

Fig. 5 shows a case where the manhole 1 is photographed on November 15, 2015 (511) in the drones and photographed on December 15, 2017 (512).

The mapping unit includes a first wall surface 521a, a second wall surface 522a, a third wall surface 523a, a fourth wall surface 524a, and an infrared image 530a), and the oxygen concentration 15% (540a).

In addition, the mapping unit includes a first wall surface 521b, a second wall surface 522b, a third wall surface 523b, a fourth wall surface 524b, and a second wall surface 523b of the 'Manhole 1' photographed on December 15, The image 530b, and the oxygen concentration 15% (540b).

The display unit displays information related to 'Manhole 1' photographed on November 15, 2017 (511), which is mapped by the mapping unit, and information related to 'Manhole 1' photographed on December 15, 2017, As shown in FIG. 5, the display unit displays the infrared image 530a of 'Manhole 1' photographed on November 15, 2017 (511) and the infrared image 530a of 'Manhole 1' photographed on December 15, 2017, If the infrared image 530b of the 'manhole 1' photographed in the manhole 1 'is different, it can be informed that the change has occurred in the image. In this case, the image difference includes a case where the reference for displaying the temperature in the infrared image exceeds a predetermined range.

FIG. 6 shows an example in which a manhole data map is displayed on a display unit according to a preferred embodiment of the present invention. A first manhole 610, a second manhole 620, a third manhole 630 and a fourth manhole 640 are located in a predetermined area of the display unit.

The display unit can be implemented to display only the alarm messages 611 and 621 informing the result of monitoring the inside of the manhole or the matters to be supplemented in monitoring the inside of the manhole without displaying the images of the inside of the manhole according to the setting have. At the point where the first manhole 610 is displayed, a message 61 indicating that damage to the underground cable connection portion has occurred is displayed. A message 621 indicating that the infrared ray image is not received from the drones at the point where the second manhole 620 is displayed or that the infrared ray image is missing due to a communication error or the like is displayed.

The display unit can also display a photograph of the manhole taken in accordance with the setting in a manhole data map displayed in a map form, and display the photographs taken by the manhole in chronological order. The display unit can provide interfaces 631, 632, and 633 for selecting a desired time to the user. 6, images taken at the manhole are displayed together with the positions of the third manhole 630 and the fourth manhole 640, and images of the third manhole 630 and the fourth manhole 640 An interface 631, 632, 633 for selecting a time is provided together.

 The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

Claims (7)

A drone for photographing a manhole to which an identification number is assigned and for measuring an oxygen concentration in the manhole; And
A mapping unit for mapping the at least one photographed image photographed by the drone and the measured oxygen concentration with respect to each of the identified manholes;
A manhole data map in which manhole information located in a predetermined area is stored based on a new distribution information system;
And a display unit for receiving the information mapped by the mapping unit and displaying the mapped information on the manhole data map. In this case, the identification number given to the manhole is GPS position information, and the mapping unit uses the GPS position information of the manhole And the mapping is performed. delete 2. The apparatus of claim 1, wherein the drones
At least one imaging device and an oxygen concentration meter, wherein the at least one imaging device comprises a thermal imaging camera. 4. The apparatus of claim 3, wherein the thermal imaging camera
And an underground cable connection part installed on the basis of the new distribution information system is photographed inside the manhole. 5. The apparatus of claim 4, wherein the mapping unit
An image of a facility installed on each wall of the manhole, an infrared image of the underground cable portion of the manhole taken by the infrared camera, and an oxygen concentration measurement value of the manhole are mapped. 6. The apparatus of claim 5, wherein the mapping unit
Wherein the notification is transmitted to the display unit when mapping is not performed because the thermal image is not captured or when the indirect temperature detected in the thermal image exceeds a preset value. A monitoring unit for photographing a manhole to which an identification number is assigned based on information of a manhole data map in which manhole information located in a predetermined area is stored based on a new distribution information system and storing the manhole data map and measuring the oxygen concentration in the manhole;
A mapping unit for mapping the at least one photographed image photographed by the monitoring unit and the measured oxygen concentration for each manhole having the identification number;
A transmission unit for transmitting the at least one shot image mapped by the mapping unit and the measured oxygen concentration;
And a display unit for receiving the information mapped by the mapping unit and displaying the mapped information on the manhole data map,
Wherein the monitoring unit includes at least one imaging device and an oxygen concentration meter, and the at least one imaging device includes a thermal imaging camera, wherein the identification number assigned to the manhole is GPS location information, Wherein mapping is performed using GPS position information of the manhole.

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