JP2015167451A - Overhead wire inspection system, overhead wire inspection apparatus, control apparatus, and overhead wire inspection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently inspect an overhead wire.SOLUTION: A control apparatus 3 includes: a picture processing unit 34 that detects a defect generated in an overhead wire 4 on the basis of position information 24a and an imaged picture 24b accepted from an overhead wire inspection apparatus 2, and generates a defect detection picture 35b obtained by emphasizing the defect in association with position information 35a; a storage unit 35 for storing the defect detection picture 35b together with the position information 35a with which the defect detection picture 35b is associated, in the storage unit 35; and a picture display unit 32b for reading out the defect detection picture 35b and the position information 35a with which the defect detection picture 35b is associated from the storage unit 35, to display them on a screen.

Description

  The present invention relates to an overhead wire inspection system, an overhead wire inspection device, a control device, and an overhead wire inspection method for inspecting an overhead wire.

  Overhead wires are subject to corrosion and damage due to aging, so it is necessary to periodically inspect overhead wires. Conventionally, an inspector rides on an overhead electric wire and inspects the overhead electric wire regularly. However, sufficient safety is required for the inspection work of the overhead electric wire stretched at a high place. In addition, since there are a lot of overhead wires, it is also required that inspection be performed easily. For this reason, in recent years, an overhead electric wire has been inspected using a self-propelled inspection device (hereinafter referred to as an “overhead electric wire inspection device”) that runs on the overhead electric wire. As such an overhead wire inspection apparatus, those disclosed in Patent Documents 1 and 2 below are known.

  Patent Document 1 discloses a technique for inspecting a wire by photographing the wire with a photographing unit that photographs the wire from within a case protecting the electronic device from radio interference.

  Patent Document 2 discloses a technique for inspecting an overhead line by causing an imaging unit included in the inspection apparatus to photograph an overhead line and displaying a wireless image received from the inspection apparatus on a monitor by an operation command transmitted by the control apparatus. Is disclosed.

JP-A-10-191517 Japanese Patent Laid-Open No. 10-248130

  By using the techniques disclosed in Patent Documents 1 and 2 described above, an image captured by the imaging unit of the inspection apparatus is sent to the ground control apparatus. By displaying this image on the display unit of the control device, an inspector on the ground can observe the electric wire in real time. In addition, an inspector on the ground can inspect the overhead electric wire without the inspector coming into contact with the live overhead wire.

  However, the range in which the overhead electric wire is stretched on the steel tower is vast, and it takes a lot of time and labor to inspect the overhead electric wire to every corner. Moreover, considering the trouble of suspending the inspection device on the overhead electric wire, it is necessary to limit the overhead electric wires to be inspected and perform the inspection efficiently. Conventionally, it has been known as an inspector's rule of thumb that the deterioration of an overhead electric wire connected near the sea is faster than that of an overhead electric wire extended inland. However, if it is based on an empirical rule, even if a point that is likely to deteriorate is found, it is only a prediction, so all overhead wires must be inspected.

  The present invention has been made in view of such a situation, and an object thereof is to efficiently inspect overhead electric wires.

The present invention communicates with a control device, and an overhead wire inspection device that self-runs according to an operation command from the control device generates a photographed image of the overhead wire, and acquires position information of the position where the overhead wire is photographed. To do.
The control device receives position information and a captured image from the overhead wire inspection device. Based on the captured image, a defect generated in the overhead electric wire is detected, and a defect detection image in which the defect is emphasized is generated in association with the position information.
Next, the defect detection image is stored in the storage unit together with the position information associated with the defect detection image, and the defect detection image and the position information associated with the defect detection image are read from the storage unit and displayed on the screen. is there.

  According to the present invention, by displaying the defect detection image and the position information associated with the defect detection image on the screen, it is possible to show the position of the defect generated in the overhead wire and the transition of the defect to the inspector. . For this reason, the inspector can efficiently inspect a portion where an overhead electric wire is likely to be defective.

1 is a schematic diagram of an overhead wire inspection system according to a first embodiment of the present invention. It is a block diagram which shows the detailed internal structural example of the overhead wire inspection system which concerns on the 1st Example of this invention. It is explanatory drawing which shows the example of a display of the tower selection screen displayed on the operation panel which concerns on the 1st Example of this invention. It is explanatory drawing which shows the example of a display of the electric wire selection screen of 1 conductor displayed on the operation panel which concerns on the 1st Example of this invention. It is explanatory drawing which shows the example of a display of the electric wire selection screen of 2 conductors displayed on the operation panel which concerns on the 1st Example of this invention. It is explanatory drawing which shows the example of a display of the 4-conductor electric wire selection screen displayed on the operation panel which concerns on the 1st Example of this invention. It is explanatory drawing which shows the example of a display of the defect detection image display screen displayed on the operation panel which concerns on the 1st Example of this invention. It is a block diagram which shows the detailed internal structural example of the overhead wire inspection system which concerns on the 2nd Example of this invention.

Hereinafter, an overhead wire inspection apparatus according to a first embodiment of the present invention will be described with reference to the accompanying drawings.
This overhead electric wire inspection system implements an overhead electric wire inspection method that is performed in cooperation with function blocks described later by a computer executing a program. In the present specification and drawings, components having substantially the same function or configuration are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
<Overview of overhead wire inspection system>
FIG. 1 is a schematic diagram of an overhead wire inspection system.
An overhead wire inspection system 1 shown in FIG. 1 includes an overhead wire inspection device 2 that self-runs on an overhead wire 4 stretched on steel towers A, D, and Q, and inspects the overhead wire 4 and an overhead wire inspection device by wireless communication. And a control device 3 that controls the operation of 2. The overhead wire inspection device 2 and the control device 3 may be capable of communicating with each other by wired communication.

  The overhead electric wire 4 stretched between two steel towers mainly has one conductor (one electric wire), two conductors (two electric wires), four conductors (four electric wires), and six conductors (6 electric wires). FIG. 1 illustrates a one-conductor overhead wire 4a and a two-conductor overhead wire 4b. However, even if the overhead wire 4 is composed of four conductors or six conductors, the overhead wire inspection system 1 is used for overhead. The conductor of the electric wire 4 can be specified and inspected.

  The overhead wire inspection apparatus 2 includes a position information acquisition unit 21, an imaging unit 22, and an antenna 23. The position information acquisition unit 21 acquires position information (for example, latitude and longitude) of a position where the overhead wire inspection apparatus 2 has moved from a GPS (Global Positioning System) satellite. This position information also includes information such as the shooting date when the imaging unit 22 has imaged the overhead wire 4 and the name of the tower on which the overhead wire 4 is stretched. The imaging unit 22 images the outer peripheral surface of the overhead wire 4 at the position where the overhead wire inspection device 2 has moved. The overhead wire inspection device 2 can transmit and receive a radio signal to the control device 3 via the antenna 23.

  The control device 3 includes an antenna 31 and an operation panel 32. The control device 3 can transmit and receive a radio signal to the overhead wire inspection device 2 via the antenna 31.

  The operation panel 32 is used as a touch panel that combines the functions of a display unit that displays an image and an operation unit that receives an operation input. Then, the operation panel 32 displays an image of the overhead wire 4 received by the antenna 31 from the overhead wire inspection device 2. Further, the operation panel 32 changes the display content according to an operation input on the screen with a stylus pen or the like. The operation of the control device 3 can be controlled by an operation input performed by the inspector 5 on the operation panel 32.

<Internal configuration example of overhead wire inspection system>
FIG. 2 is a block diagram illustrating a detailed internal configuration example of the overhead wire inspection system 1.
The overhead wire inspection apparatus 2 includes a storage unit 24 and a wireless communication unit 25 in addition to the position information acquisition unit 21, the imaging unit 22, and the antenna 23 described above. The operations of the position information acquisition unit 21, the imaging unit 22, the antenna 23, the storage unit 24, and the wireless communication unit 25 are controlled by a control unit (not shown) (for example, a CPU (Central Processing Unit)).

The storage unit 24 temporarily stores the position information 24a of the position where the overhead electric wire 4 was imaged acquired by the position information acquisition unit 21 from the GPS satellite and the captured image 24b of the overhead electric wire 4 captured by the imaging unit 22.
The wireless communication unit 25 generates a result signal obtained by encoding the position information 24 a and the captured image 24 b read from the storage unit 24, and transmits the result signal to the control device 3 via the antenna 23. In addition, the wireless communication unit 25 decodes the control signal received by the antenna 23 from the control device 3, and then outputs the control signal to a control unit (not shown) included in the overhead wire inspection device 2. With this control signal, the operations of the position information acquisition unit 21 and the imaging unit 22 are controlled, and the movement of the overhead wire inspection device 2 is controlled by a motor (not shown).

The control device 3 includes a wireless communication unit 33 including the antenna 31, an image processing unit 34, and a storage unit 35 in addition to the antenna 31 and the operation panel 32 described above. Operations of the operation panel 32, the wireless communication unit 33, the image processing unit 34, and the storage unit 35 are controlled by a control unit (for example, a CPU) (not shown).
For the storage units 24 and 35, for example, a hard disk drive (HDD), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, or the like is used. In addition to the OS (Operating System) and various parameters, the storage units 24 and 35 store programs executed by the control units.

  The wireless communication unit 33 decodes the result signal received by the antenna 31 from the overhead wire inspection device 2 to obtain the position information 24a and the captured image 24b, and then outputs the position information 24a and the captured image 24b to the image processing unit 34. . Further, the wireless communication unit 33 encodes a control signal received from a control unit (not shown) included in the control device 3 and transmits the encoded control signal from the antenna 31 to the overhead wire inspection device 2.

  The image processing unit 34 performs predetermined image processing or the like on the captured image 24 b input from the wireless communication unit 33. Examples of this image processing include binarization processing and edge enhancement. When the image processing unit 34 detects a scratch or the like generated in the overhead electric wire 4 from the imaged image 24b subjected to the image processing, the image processing unit 34 displays a defect detection image 35b in which defects such as a scratch on the overhead electric wire 4 are emphasized. Extract from The image processing unit 34 associates the extracted defect detection image 35b with position information 35a indicating the location where the photographed image 24b that is the origin of the defect detection image 35b is photographed, and stores the position information 35a and the defect detection image in the storage unit 35. 35b is saved.

  As described above, the image processing unit 34 inspects the overhead wire 4 for defects (including scratches, cracks, and corrosion) based on the position information 24 a and the captured image 24 b obtained from the overhead wire inspection apparatus 2. . The defect detection image 35b, which is the inspection result, shows at least one of the results of the flaw inspection, crack inspection, or corrosion inspection of the overhead electric wire 4 based on the captured image 24b by the image processing unit 34. The defect detection image 35b and position information 35a (for example, information on how many meters a defect has occurred from the steel tower) indicating the location where the overhead wire 4 is defective are linked when writing to the storage unit 35. ing. For this reason, when the inspector 5 performs an operation of displaying the defect detection image 35 b on the operation panel 32, the position information 35 a is also displayed on the operation panel 32.

  The operation panel 32 is used integrally with the control device 3 or is used separately. The operation panel 32 includes an operation command unit 32a, an image display unit 32b, a position display unit 32c, and an image switching unit 32d.

The operation command unit 32 a converts an operation command to the overhead wire inspection apparatus 2 performed by the touch operation by the inspector 5 on the operation panel 32 into a control signal and sends the control signal to the wireless communication unit 33. This operation command includes a command such as the moving speed, direction, moving distance, and photographing timing of the overhead wire inspection device 2. The wireless communication unit 33 encodes the control signal, and then transmits the encoded control signal from the antenna 31 to the overhead wire inspection apparatus 2.
The image display unit 32b reads the defect detection image 35b and the position information 35a associated with the defect detection image 35b from the storage unit 35 and displays them on the screen of the operation panel 32.

The position display unit 32 c displays the position information 35 a read from the storage unit 35 on the operation panel 32. The inspector 5 can confirm the defect detection image 35b by using the operation panel 32, and can grasp the position of the overhead electric wire 4 where the defect has occurred from the position information 35a.
The image switching unit 32d can issue a command to switch and display the defect detection image 35b photographed at a position different from the defect detection image 35b displayed on the image display unit 32b.

  In order to increase the efficiency of the inspection of the overhead wire 4, it is effective to limit the overhead wire 4 to be inspected based on the information on the laying position of the tower, the overhead wire 4 and the information on the scratches, cracks and corrosion of the overhead wire 4. is there. For example, by using a defect detection image 35b taken over several years of scratches, cracks, corrosion, etc. of the overhead electric wire 4, a steel tower on which the overhead electric wire 4 is stretched, and a link between the installation location information of the overhead electric wire 4, It is possible to determine which part of the overhead electric wire 4 has many scratches or the like. Therefore, by associating the position where the flaw, crack, and corrosion of the overhead electric wire 4 were detected from the overhead electric wire inspection apparatus 2 and the defect detection image 35b with the laying position of the steel tower on which the overhead electric wire 4 is stretched, it is efficient. Inspection of the overhead electric wire 4 can be realized. Hereinafter, an example in which the operation command to the overhead wire inspection device 2 and the inspection of the overhead wire 4 are inspected using the screen displayed on the operation panel 32 will be described.

<Example of steel tower selection screen>
FIG. 3 is an explanatory diagram showing a display example of the tower selection screen 40 displayed on the operation panel 32.
The tower selection screen 40 includes two tower icons 41a and 41b, an overhead wire image 41c, tower name display labels 42a and 42b, tower selection lists 43a and 43b, an inspection date selection unit 44, and a tower selection completion. And a button 45. In the steel tower selection lists 43a and 43b, the latitude and longitude (or address, etc.) of each steel tower are displayed as position information where the steel tower is installed together with selectable steel tower names.

  On the operation panel 32 in the initial state, tower name display labels 42a and 42b are displayed blank. The inspector 5 selects the steel tower on which the overhead wire 4 to be examined is stretched from the steel tower selection lists 43a and 43b. FIG. 3 shows an example in which “steel tower A” is selected from the steel tower selection list 43a and “steel tower D” is selected from the steel tower selection list 43b. In the steel tower selection lists 43a and 43b, the selection frame is highlighted, and the names “steel tower A” and “steel tower D” are displayed on the steel tower name display labels 42a and 42b. Thereby, the steel tower name of the steel tower icons 41a and 41b is specified. In addition, an overhead wire image 41c showing the overhead wire 4 stretched between “Steel Tower A” and “Steel Tower D” is displayed. Note that “steel tower A” already selected from the steel tower selection list 43a is grayed out in the steel tower selection list 43b and cannot be selected.

  Then, the inspector 5 designates the inspection period of the overhead wire 4 from the drop-down list of the inspection date selection unit 44. FIG. 3 shows an example in which “October 2012” to “September 2013” is designated. Thereby, the operation panel 32 displays the position information 35a and the defect detection image 35b of the overhead electric wire 4 that has been inspected and photographed during the designated inspection period (see FIG. 7 described later). When the inspection period is not selected, the position information 35a and the defect detection image 35b of the overhead wire 4 currently inspected by the overhead wire inspection device 2 are displayed in real time. When the inspector 5 selects the two steel towers on which the overhead electric wires 4 are stretched and the inspection period and then presses the steel tower selection completion button 45, the screen changes to the electric wire selection screen 50 shown in any of FIGS. .

<Example of wire selection screen>
Next, display examples of the electric wire selection screen will be described with reference to FIGS.
FIG. 4 is a screen configuration diagram illustrating a display example of the one-conductor electric wire selection screen 50. The overhead electric wire 4 is composed of one or a plurality of conductors, and each conductor (also simply referred to as “electric wire”) needs to be individually inspected. For this reason, in the electric wire selection screen 50, it is used in order to select each conductor which comprises the overhead electric wire 4 individually.

  When the overhead wire inspection device 2 inspects the one-conductor overhead wire 4 a (see FIG. 1), a one-conductor wire selection screen 50 is displayed on the operation panel 32. The electric wire selection screen 50 includes an electric wire selection list 51, an electric wire display area 52, tower name display labels 53a and 53b, an electric wire selection completion button 54, and a return button 55.

  In the electric wire selection list 51, the electric wire names of the electric wires included in the overhead electric wire 4 stretched on the steel tower selected on the steel tower selection screen 40 are displayed. In FIG. 4, since the overhead electric wire 4a has one conductor, only one electric wire name “electric wire 1” is highlighted. As this highlighting, for example, a method of changing the selection frame or display color is used.

  The electric wire display area 52 is provided near the center of the electric wire selection screen 50, and each electric wire of the overhead electric wire 4 is displayed as an electric wire image 52a. A wire number “1” for identifying the wire image 52a is displayed on one end surface of the wire image 52a. And the electric wire image 52b to which the electric wire number “1” corresponding to “electric wire 1” is attached is highlighted.

  The tower name display label 53a is provided at the lower left of the electric wire selection screen 50, and displays the name of the tower that supports the near side of the overhead electric wire 4a. The tower name display label 53b is provided at the upper right of the electric wire selection screen 50, and displays the name of the steel tower that supports the depth side of the overhead electric wire 4a. In FIG. 4, “Tower A side” is displayed on the tower name display label 53a, and “Tower D side” is displayed on the tower name display label 53b. Therefore, the inspector 5 has the aerial image represented in the electric wire image 52a. It is easy to understand from which steel tower the electric wire 4a is viewed.

  The electric wire selection completion button 54 is provided at the lower right of the electric wire selection screen 50. Note that there are no selectable wires other than one-conductor wires in the overhead wire 4a. For this reason, when the inspector 5 presses the electric wire selection completion button 54, a defect detection image display screen 60 (see FIG. 7 described later) is displayed on the operation panel 32.

  The return button 55 is provided below the electric wire selection completion button 54 and displays “return to steel tower selection”. When the inspector 5 depresses the return button 55, the tower selection screen 40 shown in FIG. 3 is returned, and the tower selection becomes possible again.

FIG. 5 is a screen configuration diagram showing a display example of the two-conductor electric wire selection screen 50.
The configuration of the two-conductor electric wire selection screen 50 is substantially the same as that of the electric wire selection screen 50 shown in FIG. However, since the overhead wire 4b is composed of two conductor wires, the wire selection list 51 displays the two wire names “wire 1” and “wire 2”, and the “wire” selected by the inspector. 2 "is highlighted.

  In the electric wire display area 52, electric wire images 52a and 52b showing two conductor electric wires of the overhead electric wire 4b are displayed. Electric wire numbers “1” and “2” are displayed in order from the left on one end surfaces of the electric wire images 52a and 52b. And the electric wire image 52b attached with the electric wire number “2” corresponding to “electric wire 2” is highlighted. By making the display color of the electric wire image 52b different from the display color of the electric wire image 52a, the electric wire selected by the inspector 5 can be clearly shown. When the inspector 5 selects an electric wire and then presses the electric wire selection completion button 54, a defect detection image display screen 60 (FIG. 7) is displayed on the operation panel 32.

FIG. 6 is a screen configuration diagram illustrating a display example of the four-conductor electric wire selection screen 50.
The configuration of the four-conductor electric wire selection screen 50 is substantially the same as that of the electric wire selection screen 50 shown in FIG. Here, an example in which an electric wire is selected when the overhead electric wire 4 stretched between the steel tower A and the steel tower D has four conductors will be described.

Since the overhead wire 4 is composed of four conductor wires, the wire selection list 51 displays four wire names “wire 1” to “wire 4”, and “wire 3” selected by the inspector. Is highlighted.
In the electric wire display area 52, electric wire images 52a to 52d showing electric wires of four conductors are displayed. Electric wire numbers “1” to “4” are sequentially displayed on one end surfaces of the electric wire images 52a to 52d. And the electric wire image 52c attached with the electric wire number "3" corresponding to "the electric wire 3" is highlighted. By making the display color of the electric wire image 52c different from the display color of the electric wire images 52a, 52b, and 52d, the electric wire selected by the inspector 5 can be clearly indicated. When the inspector 5 selects an electric wire and then presses the electric wire selection completion button 54, a defect detection image display screen 60 (FIG. 7) is displayed on the operation panel 32.

<Display example of defect detection image display screen>
FIG. 7 is an explanatory diagram showing a display example of the defect detection image display screen 60 displayed on the operation panel 32.
On the defect detection image display screen 60, tower icons 41a and 41b and tower name display labels 42a and 42b are displayed at the same position (upper screen) on the tower selection screen 40. And "electric wire 2" is displayed as the electric wire name 61 of the overhead electric wire 4b selected on the electric wire selection screen 50 on the overhead electric wire image 41c displayed between the steel tower icons 41a and 41b. In addition to the overhead wire 4b, the overhead wire 4a is also stretched between the steel towers A and D. Therefore, in order to distinguish the wires, in addition to the wire name 61, an ID for identifying the overhead wires 4a and 4b, etc. May be displayed.

  In the overhead wire image 41c, a defect position display icon 62 that indicates the position of a defect in the overhead wire 4b detected within the inspection period designated by the inspection date selection unit 44 on the tower selection screen 40 (FIG. 3). Is displayed. As a method of highlighting the defect position display icon 62 when the inspection period is specified, for example, the color may be changed or the line type may be changed every year or every few months within the inspection period. . If the inspection period is not designated, the position of the defect detected by the overhead wire inspection apparatus 2 currently inspecting the overhead wire 4b is indicated by the defect position display icon 62.

  Further, the defect detection image display screen 60 includes a defect detection image display unit 63, an image switching unit 64, a position information display unit 65, an inspection position designation unit 66, an inspection start button 67, and a return button 68. It is displayed. The defect detection image display unit 63, the image switching unit 64, the position information display unit 65, and the inspection start button 67 are the image display unit 32b, the image switching unit 32d, the position display unit 32c, and the operation command unit shown in FIG. 32a.

  When the inspector 5 selects any one of the defect position display icons 62, the captured image 24 b (FIG. 2) captured at a position corresponding to the selected defect position display icon 62 is displayed on the defect detection image display unit 63. The defect detection image 35b of the processed overhead wire 4b is displayed. The defect detection image 35b is obtained by image processing of the captured image 24b taken at the position where the inspector 5 has selected the defect position display icon 62 by the image processing unit 34. A certain defective portion 63a is highlighted. Furthermore, a defect emphasis frame 63b including a defect portion 63a on the inside is displayed. Therefore, the inspector 5 can quickly confirm the defect portion 63a of the overhead electric wire 4b from the defect detection image 35b displayed on the defect detection image display unit 63.

  The position information display unit 65 displays position information 35a such as a shooting date, a tower name, and a position where the defect detection image 35b is shot. Therefore, the inspector 5 can easily grasp how many meters from the tower A the position of the defective portion 63a of the overhead wire 4b indicated by the selected defect position display icon 62 is.

  The image switching unit 64 represented by the scroll button is displayed on the defect detection image display screen 60 when there are a plurality of defect detection images 35b taken in the past at the same position as the position where the defect is detected. The image switching unit 64 is not displayed unless there are a plurality of past defect detection images 35b. When the inspector presses the scroll button on the left side, the defect detection image 35b that has been imaged at the same position in the past and has been detected for defect detection as compared to when the defect detection image 35b displayed on the defect detection image display unit 63 is imaged. Is displayed on the defect detection image display unit 63. When the inspector presses the scroll button on the right side, the defect detection image 35b that has been shot at the same position up to now from the time when the defect detection image 35b displayed on the defect detection image display unit 63 was shot and the defect was detected. 35 b is displayed on the defect detection image display unit 63. The inspector 5 can select the defect detection image 35b photographed at the same position in the past from the present by operating the image switching unit 64 and display the defect detection image 35b on the defect detection image display unit 63.

  Then, by the operation of the image switching unit 64, the position information 35a is switched and displayed on the position information display unit 65 in accordance with the defect detection image 35b taken in the past in the designated period. The inspector 5 can compare the past and current defect detection images 35b photographed at the same position, and therefore can determine at which position of the overhead wire 4b a defect such as a crack is likely to occur. Although FIG. 7 shows an example in which only one defect detection image 35b is displayed on the defect detection image display unit 63, a plurality of defect detection images 35b taken at the same position from the past to the present are displayed as the defect detection image display unit. The images may be displayed side by side on the same 63 screens. The image switching unit 64 is not displayed in the defect detection image display screen 60 unless there are a plurality of past defect detection images 35b.

  In the inspection position designation section 66, the distance on the overhead electric wire 4b from the steel tower A to the position selected by the defect position display icon 62 is displayed. The inspector 5 confirms the distance from the tower A displayed on the inspection position designating unit 66, and then instructs the overhead wire inspection apparatus 2 to connect the overhead wire 4 b at the position corresponding to the selected defect position display icon 62. The inspection start button 67 (an example of an inspection instruction unit) for instructing the execution of the inspection is pressed. Thereby, the operation command for moving the overhead wire inspection device 2 to the position specified by the inspection position specifying unit 66 can be performed. The overhead wire inspection device 2 that has received this operation command moves the overhead wire 4b to a designated position and performs an inspection.

  Further, a return button 68 is displayed at the lower right of the defect detection image display screen 60, and “return to electric wire selection” is displayed. When the inspector 5 presses the return button 68, the wire selection screen 50 is displayed again, and the wire can be selected again.

  According to the overhead wire inspection system 1 according to the first embodiment described above, the defect detection image display unit 63 of the operation panel 32 has a current or past defect of the overhead wire 4 photographed by the overhead wire inspection device 2. The detected image 35b can be switched and displayed. Further, the situation when the defect detection image 35b is photographed can be confirmed by the inspector 5 by the position information 35a displayed on the position information display unit 65. For this reason, the inspector 5 displays the defect detection image 35b generated in the overhead electric wire 4 by a simple operation of simply selecting the defect position display icon 62 while looking at the defect detection image display screen 60, thereby improving the inspection efficiency. Can be increased. Further, the inspector 5 can easily check the transition of the defect generated in the overhead electric wire 4 by operating the image switching unit 64 to switch and display the defect detection image 35b photographed at present or in the past.

  Further, the inspector 5 can select the defect position display icon 62 to move the overhead wire inspection apparatus 2 to the position indicated by the defect position display icon 62 and inspect the overhead wire 4. For this reason, it is possible to focus on the overhead electric wire 4 on which the defect for which the defect position display icon 62 is selected is likely to occur. In addition, the inspection can be omitted for the overhead electric wires 4 that are less likely to cause defects.

  Further, the inspector 5 can select any two steel towers by operating the steel tower selection screen 40, and can select the overhead wire 4 stretched on the selected steel tower. Since the steel tower that cannot be selected is indicated to the inspector 5 by grayout or the like, the inspector 5 does not have to perform an erroneous operation such as selecting a steel tower in a combination in which the overhead wire 4 is not stretched. Then, the inspector 5 easily selects an inspection date selection unit 44 to easily issue a command to display the defect detection image 35b of the overhead electric wire 4 photographed in the past certain period on the defect detection image display screen 60. be able to.

  In addition, even if the overhead electric wire 4 is composed of a plurality of conductors, the inspector 5 can select one conductor by operating the electric wire selection screen 50. Since the selected conductor is highlighted in the electric wire selection list 51 and the electric wire display area 52, the inspector 5 can easily grasp the positional relationship of the selected conductor.

[Second Embodiment]
<Overview of overhead wire inspection system>
Next, an overhead wire inspection system according to the second embodiment of the present invention will be described.
FIG. 8 is a block diagram illustrating a detailed internal configuration example of the overhead wire inspection system 70.

  The overhead wire inspection system 70 is different from the overhead wire inspection system 1 in that the overhead wire inspection device 2 has an external memory 26 (an example of an external storage unit) and a new external processing device 71 (an example of another control device 3). ). As the external processing device 71, for example, a personal computer device is used. Further, as the external memory 26, for example, a mass storage device such as a solid state drive (SSD) or a hard disk drive (HDD) is used, and can be removed from the overhead wire inspection device 2. The position information 24a and the captured image 24b obtained by the overhead wire inspection device 2 are stored in the storage unit 24 and also stored in an external memory 26 attached to the overhead wire inspection device 2.

  The external processing device 71 includes an image processing unit 72 and a storage unit 73 having functions similar to those of the image processing unit 34 and the storage unit 35 included in the control device 3. The position information 73a and the defect detection image 73b stored in the storage unit 73 have the same contents as the position information 35a and the defect detection image 35b stored in the storage unit 35 of the control device 3.

  While the overhead wire inspection device 2 inspects the overhead wire 4, the position information acquisition unit 21 simultaneously writes the position information 24 a into the storage unit 24 and the external memory 26. In addition, the photographing unit 22 simultaneously writes the photographed image 24 b in the storage unit 24 and the external memory 26.

  When the inspection of the overhead wire 4 is completed, the inspector 5 lowers the overhead wire inspection device 2 to the ground. Then, the inspector 5 removes the external memory 26 from the overhead wire inspection device 2 and connects the external memory 26 to the external processing device 71. In the external processing device 71, the image processing unit 72 generates position information 73 a and a defect detection image 73 b based on the position information 24 a and the captured image 24 b read from the external memory 26 and writes them in the storage unit 73. Since the external processing device 71 can be connected to the operation panel 32, the defect detection image 73b read from the storage unit 73 by the image display unit 32b and the position information 73a read from the storage unit 73 by the position display unit 32c. Is displayed on the defect detection image display screen 60 of the operation panel 32. Thereby, the inspector 5 can confirm the defect detection image 73b, and can grasp | ascertain the position in the overhead electric wire 4 in which this defect produced.

  In the overhead wire inspection system 70, as in the overhead wire inspection system 1 described above, the overhead wire inspection device 2 and the control device 3 communicate with each other wirelessly, thereby controlling the overhead wire inspection device 2, position information 24a, and Processing of the captured image 24b may be performed.

  Further, the operation panel 32 may be configured to be removable from the control device 3. In this case, the control device 3 and the operation panel 32 can transmit and receive signals to each other by performing wireless or wired communication. For this reason, even when the inspector 5 having the operation panel 32 goes to a place away from the control device 3, a control command can be issued from the operation panel 32 to the control device 3.

  In addition, the image captured by the overhead wire inspection apparatus 2 by the imaging unit 22 may be a still image or a moving image. Further, the overhead wire inspection apparatus 2 may transmit a still image captured from the moving image every few seconds to the control device 3. Moreover, the overhead wire inspection apparatus 2 may include a processing unit corresponding to the image processing unit 34 of the control device 3, and transmit the position information and the defect detection image obtained by performing the image processing to the control device 3. Thereby, it is possible to perform wireless communication satisfactorily without constraining the wireless band.

  The position information display unit 65 of the defect detection image display screen 60 can also display various information such as temperature, humidity, and time at the time of shooting. By managing the history of such information, it is possible to estimate under which conditions defects are likely to occur in the overhead wire 4.

Further, in FIG. 7, the inspection position designation unit 66 is selected, and the distance from the tower A is directly input by input means (not shown) (for example, a sub-screen on which a numeric keypad can be input on the keyboard or the defect detection image display screen 60). Then, an operation command for moving the overhead wire inspection device 2 to a designated position by pressing the inspection start button 67 may be performed.
In this way, the overhead wire inspection device 2 can be moved to any designated position, or in the case of a multiconductor overhead wire 4, the overhead wire inspection device 2 can be moved to a position where a defect has been detected with another wire. You can also let them.

The present invention is not limited to the above-described embodiments, and various other application examples and modifications can of course be taken without departing from the gist of the present invention described in the claims.
For example, in the above-described embodiment, the configuration of the apparatus and the system is described in detail and specifically in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one having all the configurations described. Absent. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is also possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

  DESCRIPTION OF SYMBOLS 1 ... Overhead wire inspection system, 2 ... Overhead wire inspection apparatus, 3 ... Control apparatus, 21 ... Position information acquisition part, 22 ... Imaging | photography part, 32 ... Operation panel, 32a ... Operation command part, 32b ... Image display part, 32c ... Position display unit, 32d ... Image switching unit, 33 ... Wireless communication unit, 34 ... Image processing unit, 35 ... Storage unit, 35a ... Position information, 35b ... Defect detection image

Claims (10)

An overhead wire inspection system comprising: an overhead wire inspection device that self-runs and inspects an overhead wire; and a control device that communicates with the overhead wire inspection device and controls the overhead wire inspection device;
The overhead wire inspection device is:
A photographing unit for generating a photographed image of the overhead electric wire;
A position information acquisition unit that acquires position information of a position where the overhead electric wire is photographed,
The controller is
An operation command unit for performing an operation command to the overhead wire inspection device;
An image processing unit that receives the captured image and the position information from the overhead wire inspection device, detects a defect generated in the overhead wire from the captured image, and associates the position information with a defect detection image that emphasizes the defect;
A storage unit for storing the defect detection image together with the position information associated with the defect detection image;
An overhead wire inspection system comprising: the defect detection image; and an image display unit that reads the position information associated with the defect detection image from the storage unit and displays the image on a screen. 2. The overhead wire inspection according to claim 1, wherein the defect detection image includes at least one result of the flaw inspection, the crack inspection, or the corrosion inspection of the overhead wire based on the captured image by the image processing unit. system. In the screen, a tower selection screen for selecting a tower on which the overhead wire is stretched, a wire selection screen for selecting a conductor wire included in the overhead wire, or the defect detection image is selected. The overhead wire inspection system according to claim 1, wherein any one of the defect detection image display screens is displayed. The tower selection screen
A tower selection list in which the tower on which the overhead electric wire is stretched is selected;
The overhead electric wire inspection system according to claim 3, further comprising: an inspection date selection unit that specifies a period during which the overhead electric wire is inspected. The wire selection screen
An electric wire selection list in which the electric wires are selected from the overhead electric wires stretched on the tower selected on the tower selection screen;
An electric wire display area in which the electric wires are displayed,
The overhead electric wire inspection system according to claim 3, wherein the selected electric wires are highlighted in the electric wire selection list and the electric wire display area. The defect detection image display screen is
An icon indicating a location where a defect is detected in the overhead wire,
A defect detection image display unit on which the defect detection image obtained by processing the captured image captured at a position corresponding to the selected icon is displayed;
A position information display unit for displaying the position information associated with the defect detection image;
An image switching unit that switches between the defect detection image and the position information in a specified period;
The overhead wire inspection system according to claim 3, further comprising: an inspection command unit that instructs the overhead wire inspection device to perform inspection of the overhead wire at a position corresponding to the selected icon. The overhead wire inspection device stores the photographed image and the position information, and has an external storage unit that is removable from the overhead wire inspection device,
The said image display part reads the said captured image and the said positional information from the said external memory part, and the produced | generated defect detection image and the said positional information are displayed on the said screen by the said image display part. Overhead wire inspection system. A shooting unit that self-runs to shoot an overhead electric wire and generate a shot image;
A position information acquisition unit for acquiring position information of a position where the overhead electric wire is photographed;
An image processing unit that detects a defect generated in the overhead electric wire from the captured image and generates a defect detection image in which the defect is emphasized in association with the position information;
An overhead wire inspection apparatus comprising: a storage unit that stores the defect detection image together with the position information associated with the defect detection image. An overhead wire inspection that includes a photographing unit that generates a photographed image of the overhead wire and a position information acquisition unit that obtains position information of a position where the overhead wire is photographed, and that self-runs to inspect the overhead wire An operation command unit that communicates with the device and issues an operation command for the overhead wire inspection device;
Image processing that receives the captured image and the position information from the overhead wire inspection device, detects a defect generated in the overhead wire from the captured image, and generates a defect detection image in which the defect is emphasized in association with the position information And
A storage unit for storing the defect detection image together with the position information associated with the defect detection image;
A control apparatus comprising: an image display unit that reads the defect detection image and the position information associated with the defect detection image from the storage unit and displays the position information on a screen. An overhead wire inspection device that communicates with the control device and self-runs according to an operation command from the control device generates a photographed image of the overhead wire; and
Obtaining position information of a position where the overhead electric wire is photographed;
The control device receives the captured image and the position information from the overhead wire inspection device;
Detecting a defect generated in the overhead electric wire from the captured image;
Generating a defect detection image highlighting the defect in association with the position information;
Storing the defect detection image in a storage unit together with the position information associated with the defect detection image;
The overhead wire inspection method, comprising: reading the defect detection image and the position information associated with the defect detection image from the storage unit and displaying them on a screen.

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