Degradation detection apparatus, degradation detection system, and degradation detection method

Abstract

To accurately identify a degraded portion of an electric wire.SOLUTION: A degradation detection apparatus 4 includes: a measurement data acquisition unit (wireless communication unit 41) that acquires measurement data from a measuring device 1 that outputs measurement data representing a degree of degradation of an electric wire 2; an image acquisition unit (wireless communication unit 41) that acquires an image obtained by capturing the entire electric wire 2 to be measured and the measuring device 1; and an image processing unit (control unit 42) that detects a position of the measuring device 1 in the image and generates a measurement result by superimposing an image element in a form corresponding to the degree of degradation indicated by the measurement data output at the time of capturing of the image on a position in the image.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a deterioration detection device, a deterioration detection system, and a deterioration detection method. [Background technology]

[0002] There is a technology that uses eddy current testing to detect deterioration (degree of corrosion) of overhead distribution lines strung between utility poles (see, for example, Patent Document 1). The conductor deterioration detection device described in Patent Document 1 includes a housing, a pair of coil sensors provided in the housing and having an excitation coil that generates a magnetic field and a detection coil that detects the magnetic field, and a drive mechanism that moves the housing along the electric wire. This conductor deterioration detection device further includes a processing unit that detects deterioration of the conductor of the electric wire based on the magnetic field detection values ​​of the detection coils. This conductor deterioration detection device can detect conductor deterioration while moving the housing along the electric wire. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-34432 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned Patent Document 1 does not mention measuring the length of the electric wire, and in detection using this conductor deterioration detection device, it may be difficult to accurately determine the deteriorated part of the electric wire.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide a deterioration detection device, a deterioration detection system, and a deterioration detection method that can accurately determine the deteriorated part of an electric wire. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the deterioration detection device according to the present invention has the following features. a measurement data acquisition unit that acquires measurement data from a measurement device that outputs measurement data that indicates the degree of deterioration of the electric wire; an image acquisition unit that acquires an image of the entire electric wire to be measured and the measuring device; an image processing unit that detects the position of the measuring device in the image and generates a measurement result in which an image element in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured is superimposed on the position on the image, Deterioration detection device.

[0007] In order to achieve the above-mentioned object, the deterioration detection system according to the present invention has the following features. The deterioration detection device; the measuring device; a camera that photographs the entire electric wire to be measured and the measuring device, The measuring device and the camera are each wirelessly connected to the deterioration detection device. Deterioration detection system.

[0008] In order to achieve the above object, the deterioration detection method according to the present invention has the following features. acquiring measurement data from a measuring device that outputs measurement data indicating the degree of deterioration of the electric wire; Acquire an image of the entire electric wire to be measured and the measuring device; detecting a position of the measuring device in the image, and generating a measurement result in which an image element in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured is superimposed at the position on the image; Degradation detection methods. [Effects of the Invention]

[0009] According to the present invention, it is possible to accurately determine the location of deterioration in an electric wire.

[0010] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing an example of a schematic configuration of a deterioration detection system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of the configuration of a deterioration detection system according to an embodiment of the present invention. [Figure 3] FIG. 3 is an explanatory diagram showing an example of the arrangement of the electric wires and the sensor unit shown in FIG. [Figure 4] FIG. 4 is an explanatory diagram showing an example of the arrangement of the electric wires and the sensor unit shown in FIG. [Figure 5] FIG. 5 is a flowchart showing an example of processing in the deterioration detection system according to one embodiment of the present invention. [Figure 6] FIG. 6 is a schematic diagram showing an example of displaying measurement results according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0013] As shown in FIG. 1, a deterioration detection system 100 according to one embodiment is a system for detecting deterioration of an electric wire 2, and includes a measuring device 1, a camera 3, and a deterioration detection device 4. The measuring device 1 and the camera 3 are each wirelessly connected to the deterioration detection device 4. The electric wire 2 to be measured is an electric wire extending between a measurement start point and a measurement end point, and corresponds to a portion of an electric wire suspended on multiple utility poles. In the example of FIG. 1, the electric wire 2 is an electric wire suspended between two utility poles. As shown in FIG. 3, the electric wire 2 includes a conductor 22 formed by twisting together multiple wires 21, and a covering 23 that covers the conductor 22.

[0014] The measuring device 1 detects the degree of corrosion (deterioration) of the conductor 22 while traveling in the longitudinal direction of the electric wire 2, and transfers the measurement data to the deterioration detection device 4. The camera 3 is placed in a position where the entire electric wire 2 to be measured and the measuring device 1 fit within its angle of view, and transfers the captured video data (images) to the deterioration detection device 4. The deterioration detection device 4 generates and displays measurement results by superimposing image elements in a format corresponding to the measurement data received from the measuring device 1 onto the video data received from the camera 3.

[0015] 2 is a block diagram showing an example configuration of the deterioration detection system 100. The measurement device 1 outputs measurement data indicating the degree of deterioration of the electric wire 2. The measurement device 1 has a sensor unit 11, an AC power supply unit 12, a signal processing unit 13, a moving unit 14, a control unit 15, and a wireless communication unit 16.

[0016] The sensor unit 11 has an excitation coil 111 and a detection coil 112, and detects the degree of corrosion of the conductor 22 (see FIG. 3) of the electric wire 2. The excitation coil 111 and the detection coil 112 are each formed by winding a wire, for example, in a spiral shape. The excitation coil 111 is a coil for passing an excitation signal (AC current) therethrough to induce an eddy current on the surface of the electric wire 2. The detection coil 112 is a coil through which an induced current flows due to a change in magnetic flux caused by the eddy current.

[0017] The AC power supply unit 12 is a power supply device such as a battery, and inputs an excitation signal to the excitation coil 111. The signal processing unit 13 is a signal processing device composed of a filter, an amplifier, etc. The signal processing unit 13 performs processing such as frequency filtering and signal amplification on a signal that detects the induced current flowing through the detection coil 112, and outputs the result as a detection signal.

[0018] The moving unit 14 moves the sensor unit 11 along the longitudinal direction D1 (see FIG. 4 ) of the electric wire 2. The moving unit 14 has a motor driver 141 and a motor 142 for moving the main body 10 (see FIG. 1 ), through which the electric wire 2 passes, along the longitudinal direction D1. The main body 10 is formed of an insulating resin material in a hollow, approximately rectangular parallelepiped shape. A rotating body such as a drive wheel is provided inside the main body 10, allowing it to move freely along the longitudinal direction D1 relative to the electric wire 2. The main body 10 accommodates the sensor unit 11, an AC power supply unit 12, a signal processing unit 13, the moving unit 14, a control unit 15, and a wireless communication unit 16. As shown in FIG. 3 , the sensor unit 11 is attached to the main body 10 so that the central axes A of the excitation coil 111 and the detection coil 112 are aligned with the radial direction D2 of the electric wire 2. 4, the excitation coil 111 and the detection coil 112 are arranged side by side along the longitudinal direction D1 and are disposed so as to overlap with each other. The moving unit 14 moves the main body 10, which houses the sensor unit 11 and the like, along the longitudinal direction D1 of the electric wire 2 by driving the motor 142 with the motor driver 141.

[0019] The control unit 15 is composed of a microcomputer incorporating a CPU (Central Processing Unit), ROM (Read-Only Memory), RAM (Random-Access Memory), etc., and is responsible for overall control of the measuring device 1. The control unit 15 is connected to the AC power supply unit 12 and controls the on / off of the AC power supply unit 12. The control unit 15 is connected to a motor driver 141 and drives a motor 142 via the motor driver 141 to move the sensor unit 11 along the longitudinal direction D1.

[0020] The control unit 15 is connected to the signal processing unit 13 and receives the detection signal output from the signal processing unit 13. The control unit 15 controls the sensor unit 11, and each time the sensor unit 11 moves, performs calculations based on the detection signal output by the signal processing unit 13 and outputs measurement data indicating the degree of deterioration of the conductor 22. The measurement data includes, for example, the output value (amplitude) of the detection signal and the phase difference between the detection signal and the excitation signal. The control unit 15 also transmits the measurement data to the deterioration detection device 4 via the wireless communication unit 16.

[0021] The wireless communication unit 16 is a wireless communication device such as a Wi-Fi (registered trademark) module, and transfers the measurement data to the deterioration detection device 4. The wireless communication unit 16 receives a signal related to the control of the motor 142 from the deterioration detection device 4 and inputs it to the control unit 15.

[0022] The measuring device 1 may have a storage unit for saving the measurement data. By having the storage unit in the measuring device 1, it is possible to prepare for the case where a measurement data transfer error occurs between the measuring device 1 and the deterioration detection device 4. The storage unit of the measuring device 1 stores the measurement data in association with the time when the measurement data was acquired.

[0023] The camera 3 has an imaging unit 31 and a wireless communication unit 32. The imaging unit 31 captures an image of the entire electric wire 2 to be measured and the measuring device 1, and outputs the captured image. The imaging unit 31 captures an image of the entire electric wire 2 to be measured and the measuring device 1, and outputs the image data. The wireless communication unit 32 is a wireless communication device, for example, a Wi-Fi (registered trademark) module, and transfers the image data (images) output by the imaging unit 31 to the deterioration detection device 4. The camera 3 may have a memory unit for saving the image data (images). Having the memory unit in the camera 3 makes it possible to prepare for the occurrence of a video data transfer error between the camera 3 and the deterioration detection device 4. The memory unit of the camera 3 stores the video data in association with the time the video data was captured.

[0024] By storing the measurement data and video data linked to time information, even if they are transferred to the deterioration detection device 4 afterwards, the deterioration detection device 4 can associate the measurement data with the image captured when the measurement data was acquired based on the time information. This allows the deterioration detection device 4 to generate the measurement results described below afterwards.

[0025] The deterioration detection device 4 is a communication terminal operated by the worker performing the measurement work, and functions as a controller that forms the core of the deterioration detection system 100. The deterioration detection device 4 is a portable device such as a tablet, smartphone, or mobile phone, but may also be a fixed installation device. The deterioration detection device 4 may also be configured as a dedicated device, or may be configured by installing application software in a general tablet or the like.

[0026] The deterioration detection device 4 includes a wireless communication unit 41 , a control unit 42 , a storage unit 43 , an input unit 44 , and a display unit 45 .

[0027] The wireless communication unit 41 is a wireless communication device such as a Wi-Fi (registered trademark) module, and functions as a measurement data acquisition unit and an image acquisition unit. The wireless communication unit 41 acquires measurement data indicating the degree of deterioration of the electric wire 2 from the measuring device 1. The wireless communication unit 41 also acquires images of the entire electric wire 2 being measured and the measuring device 1. The wireless communication unit 41 acquires video data including multiple images captured at the time the measurement data is output from the measuring device 1.

[0028] The control unit 42 is composed of a microcomputer with a built-in CPU, ROM, RAM, etc., and is responsible for overall control of the deterioration detection device 4. The control unit 42 functions as an image processing unit. The control unit 42 detects the position of the measuring device 1 in the image output from the camera 3 and generates measurement results by superimposing image elements in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured, at the position of the measuring device 1 on the image. The control unit 42 generates the measurement results by converting pixel data at the position on the image into pixel data of a color corresponding to the measurement data. The control unit 42 generates the measurement results by extracting pixel coordinates of the detection point of the measuring device 1 in the image output from the camera 3, and performing measurement data conversion and data plotting, which will be described later. The control unit 42 also saves the measurement results and controls the operation of the measuring device 1.

[0029] The storage unit 43 is a storage device that stores various data and programs, and is a storage medium such as a memory or a cloud server, etc. The measurement results displayed on the display unit 45 are saved.

[0030] The input unit 44 is an input device such as a touch panel, and is used to input driving operations for the measurement device 1, the start and end of measurement, and the saving of measurement results.

[0031] The display unit 45 is, for example, a liquid crystal screen, and displays the measurement results generated by the control unit 42. The display unit 45 also displays the video data received from the camera 3.

[0032] Fig. 5 is a flowchart showing an example of processing in the deterioration detection system 100. The series of processing shown in Fig. 5 is performed mainly by the control unit 42 of the deterioration detection device 4 controlling the operation of each unit of the deterioration detection device 4. Prior to the deterioration detection processing in the deterioration detection system 100, an operator attaches the measuring device 1 to one end of the electric wire 2, i.e., the end of the electric wire 2 connected to the utility pole on the left side in Fig. 1, and places the camera 3 in a position where the entire electric wire 2 to be measured and the measuring device 1 are within the angle of view of the camera 3. In response to an operation by the operator, the camera 3 starts acquiring video data (images) using the photographing unit 31 and starts transferring the video data to the deterioration detection device 4 via the wireless communication unit 32.

[0033] The deterioration detection device 4 acquires video data (images) from the camera 3 via the wireless communication unit 41 (step S1) and displays the video on the display unit 45 (step S2). When the operator presses the measurement start button on the input unit 44 of the deterioration detection device 4, the control unit 42 detects the input to start measurement (step S3). In response to the input to start measurement, the control unit 42 drives the motor 142 of the measuring device 1 via the motor driver 141 and controls the AC power supply unit 12, the sensor unit 11, and the signal processing unit 13 to output measurement data V representing the degree of deterioration of the electric wire 2. The measurement data V is transferred to the deterioration detection device 4 via the wireless communication unit 16. Thereafter, the measuring device 1 moves along the electric wire 2, outputting measurement data each time it moves. In addition to the input to start measurement, the control unit 42 can also drive the motor 142 in response to an input from the input unit 44 to control the operation of the measuring device 1 (forward, backward, stop). The operation of the measuring device 1 is controlled, for example, by the operator pressing the button shown above the input unit 44 in FIG. 1, and the measuring device 1 can perform various operations in accordance with the operator's instructions.

[0034] The control unit 42 detects the position of the measuring device 1 in the video data (image) (step S4). In step S4, the control unit 42 detects an area including the measuring device 1 from the video data (image). The control unit 42 extracts pixel coordinates of the detected location (step S5).

[0035] The control unit 42 acquires measurement data V from the measurement device 1 via the wireless communication unit 41 (step S6). The control unit 42 converts the pixel data at the position of the measurement device 1 on the video data (image) into pixel data (color data) of a color corresponding to the measurement data V (step S7). The control unit 42 converts the pixel data at the position on the video data (image) into pixel data of, for example, green for a small degree of deterioration, yellow for a medium degree of deterioration, and red for a large degree of deterioration according to the value of the measurement data V. Specifically, the conversion of the measurement data V into color data is set to green when the value of the measurement data V is equal to or greater than the threshold value a, that is, when there is no corrosion. Also, when the value of the measurement data V is less than or equal to the threshold value b (where b < a), that is, when the degree of corrosion is large, it is set to red, and when the value of the measurement data V is greater than the threshold value b and less than the threshold value a, that is, when the degree of corrosion is small, it is set to yellow. The conversion into color data is not limited to three levels, and may be performed in two levels or four levels or more by appropriately setting one or more threshold values as appropriate.

[0036] The control unit 42 plots the color data at the pixel coordinates extracted in step S5 (step S8). That is, the control unit 42 generates a measurement result in which an image element in a manner corresponding to the degree of deterioration of the electric wire 2 indicated by the measurement data V output at the time of image capture is superimposed on the position of the measurement device 1 on the image. The control unit 42 may convert the pixel data located at the center of gravity of the measurement device 1 and the pixel data within a certain range (in this example, within a certain radius) around it on the video data (image) into pixel data of a color corresponding to the measurement data. Thereby, when the sensor unit 11 is located at the center of the measurement device 1, a more accurate measurement location can be indicated in the measurement result. Note that the control unit 42 may convert all the pixel data within the area of the measurement device 1 detected in the image into pixel data of a color corresponding to the measurement data.

[0037] The control unit 42 determines whether the measurement end button on the input unit 44 has been pressed to input a command to end the measurement (step S9). If the command to end the measurement has not been input (NO in step S9), the control unit 42 waits for a predetermined time to elapse (YES in step S13) and returns to the processing of step S4. That is, the control unit 42 repeats the processing of steps S4 to S8 at predetermined time intervals to plot color data on the video data. In other words, the control unit 42 acquires the measurement data V sequentially output by the measuring device 1 while moving along the longitudinal direction of the electric wire 2, and acquires video data including multiple images captured at the timing when the measurement data V is output from the measuring device 1. The control unit 42 generates a measurement result by superimposing, on the acquired video data, each image element in a manner corresponding to the degree of deterioration indicated by each measurement data output by the measuring device 1 at each measurement point.

[0038] When the control unit 42 receives a command to end the measurement (YES in step S9), it instructs the measurement device 1 to end the measurement, stops the motor 142 and the AC power supply, and displays the measurement results as shown in FIG. 6 on the display unit 45 (step S10). The control unit 42 also displays a dialog box or the like on the display unit 45, requesting a selection input as to whether or not to save the measurement result data. If saving the measurement result data is selected (YES in step S11), the control unit 42 saves the measurement result data in the memory unit 43 (step S12) and ends the process. If saving the measurement result data is not selected (NO in step S11), the control unit 42 discards the measurement result data and ends the process.

[0039] FIG. 6 is an example of a screen displaying the measurement results obtained by measuring the degree of deterioration of the electric wire 2 while the measuring device 1 moves from the left end of the electric wire 2 toward the right end of the electric wire 2. Along the trajectory of the movement of the measuring device 1 along the electric wire 2, multiple red markers M1 are superimposed on the left side of the electric wire 2, multiple yellow markers M2 are superimposed on the right side of the marker M1, and multiple green markers M3 are superimposed on the right side of the marker M2. As shown in FIG. 6, by displaying the measurement results, the deteriorated locations on the electric wire 2 can be accurately identified. Furthermore, the degree of deterioration at the measurement locations can be accurately identified.

[0040] As described above, according to the deterioration detection system 100 of this embodiment, image elements (markers M1, M2, M3) are superimposed on the position of the measuring device 1 on an image of the entire electric wire 2 to be measured and the measuring device 1, in a manner corresponding to the degree of deterioration indicated by the measurement data output during the image capture. This allows the location of deterioration on the electric wire to be accurately identified. Furthermore, because the image elements are superimposed on the position of the measuring device 1 in the captured image in a manner corresponding to the degree of deterioration, the degree of deterioration at the measurement location can be accurately identified. Furthermore, because measurement results are generated with the image elements superimposed on the captured image, even non-specialized workers can easily measure the corrosion level of the electric wire. This also reduces the time required for analysis, such as converting measurement data, which was previously required, thereby simplifying and streamlining the work.

[0041] Furthermore, according to the deterioration detection system 100, image elements (markers M1, M2, M3) corresponding to the measurement data sequentially output while the measuring device 1 moves along the longitudinal direction of the electric wire 2 are superimposed on the video data. Therefore, even if an abnormality such as slippage of the drive wheels occurs while the measuring device 1 is moving, or if the speed of the measuring device 1 changes, the exact location of deterioration in the electric wire 2 can be identified by looking at the measurement results.

[0042] One method for measuring the length of an electric wire without using the deterioration detection system 100 of this embodiment involves converting the measurement time and detection signal (unit: [V]) recorded by a measuring device into measured distance and signal strength (unit: [dB]), respectively, and then determining the degree of corrosion of the entire electric wire from the waveforms of the distance and signal strength. However, this method requires the measuring device to travel at a constant speed in order to accurately measure distance. For example, when the measurement target is an overhead power distribution line, the measuring device travels at high speed on the downstream side due to low load and at low speed on the upstream side due to high load. Therefore, when the measurement time is converted into distance, the distance is short on the downstream side and long on the upstream side, resulting in an inaccurate distance measurement. Furthermore, if an abnormality such as slippage occurs in the drive wheels, the measurement time is extended by the time the abnormality occurred, resulting in the measured distance being longer than the actual length of the electric wire, resulting in discrepancies in the location of corrosion. On the other hand, according to the deterioration detection system 100, in the captured image, the position of the measuring device 1 on the entire electric wire 2, i.e., the measurement point, is superimposed with an image element corresponding to the measurement data obtained at that measurement point, so that the exact deteriorated point of the electric wire 2 can be identified.

[0043] Furthermore, according to the deterioration detection system 100, pixel data at the position of the measuring device 1 on the image is converted into pixel data of a color corresponding to the measurement data V, so that the degree of deterioration at the measurement point on the electric wire 2 can be easily grasped by the difference in color.

[0044] Furthermore, according to the deterioration detection system 100, the measuring device 1 is provided with a display unit 45 that displays the measurement results, so that by visually checking the display unit 45, the worker can easily grasp the deteriorated part of the electric wire.

[0045] The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. In addition, the material, shape, dimensions, numerical values, form, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention.

[0046] In the above embodiment, the measuring device 1 sequentially outputs measurement data while moving along the longitudinal direction of the electric wire 2, but the measuring device that acquires the measurement data is not limited to being self-propelled. For example, an operator may move the measuring device while operating a control rod attached to the measuring device, and the measurement data may be output. In this case, each time the measuring device acquires measurement data and transfers it to the deterioration detection device 4, the camera 3 acquires an image of the electric wire 2 and the measuring device and transfers it to the deterioration detection device 4.

[0047] In the above embodiment, an example was shown in which the deterioration detection device 4 operated by a worker acquires measurement data V from the measuring device 1, acquires an image of the electric wire 2 and the measuring device 1 from the camera 3, and generates a measurement result in which an image element according to the degree of deterioration of the electric wire 2 is superimposed at the position of the measuring device on the image. The device that performs these processes is not limited to a communication terminal operated by a worker; for example, a communication device such as a server located in a remote location may function as the deterioration detection device and perform the series of processes. Furthermore, the server or the like that functions as the deterioration detection device may transmit the generated measurement result to a communication terminal operated by a worker and display it on the communication terminal.

[0048] In the above embodiment, the image elements (markers M1, M2, M3) superimposed on the video (image) captured by the camera 3 are three-colored circles. However, the image elements are not limited to this example and may be any shape that allows visual differentiation of the degree of deterioration. As an example, the image elements may be two-colored circles depending on the presence or absence of deterioration, or may be four or more colored circles corresponding to the number of stages of deterioration to indicate the degree of deterioration. Furthermore, the image elements are not limited to circles, but may be polygonal or any other shape, and the degree of deterioration may be differentiated by color coding, different patterns, etc. Furthermore, the image elements may be marks whose shape and / or size vary depending on the degree of deterioration, or may be letters or numbers indicating the degree of deterioration.

[0049] Here, the features of the deterioration detection device, deterioration detection system, and deterioration detection method according to the above-described embodiments of the present invention will be briefly summarized and listed below in [1] to [6].

[0050] [1] A measurement data acquisition unit (wireless communication unit 41) that acquires measurement data from a measurement device (1) that outputs measurement data indicating the degree of deterioration of an electric wire (2); an image acquisition unit (wireless communication unit 41) that acquires an image of the entire electric wire to be measured and the measuring device; an image processing unit (control unit 42) that detects the position of the measurement device in the image and generates a measurement result in which image elements (markers M1, M2, M3) in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured are superimposed on the position on the image, Deterioration detection device (4).

[0051] According to the deterioration detection device having the configuration [1] above, image elements (markers M1, M2, M3) are superimposed on the position of the measuring device 1 on an image of the entire electric wire to be measured and the measuring device 1, in a manner corresponding to the degree of deterioration indicated by the measurement data output during the image capture. This allows the location of deterioration on the electric wire to be accurately identified. Furthermore, since the image elements are superimposed on the position of the measuring device 1 in the captured image in a manner corresponding to the degree of deterioration, the degree of deterioration at the measurement location can be accurately identified. Furthermore, since measurement results are generated with the image elements superimposed on the captured image, even non-specialized workers can easily measure the degree of corrosion of the electric wire, and the time required for analysis such as conversion of measurement data, which was previously required, is shortened, thereby simplifying and streamlining the work.

[0052] [2] The measurement data acquisition unit acquires the measurement data sequentially output by the measuring device while moving along the longitudinal direction of the electric wire, the image acquisition unit acquires video data including a plurality of the images captured at the timing when the measurement data is output from the measurement device, the image processing unit generates the measurement result by superimposing, on the video data, each image element in a manner corresponding to the degree of deterioration indicated by each measurement data output by the measuring device at each measurement point. The deterioration detection device according to [1].

[0053] According to the deterioration detection device having the configuration described in [2] above, image elements corresponding to the measurement data sequentially output by the measuring device while it is moving along the longitudinal direction of the electric wire are superimposed on the video data. Therefore, even if an abnormality such as slippage of the drive wheels occurs or the speed of the measuring device changes while the measuring device is moving, the exact location of deterioration in the electric wire can be identified by looking at the measurement results.

[0054] [3] The image processing unit generates the measurement result by converting pixel data at the position on the image into pixel data of a color corresponding to the measurement data. The deterioration detection device according to [1] or [2].

[0055] According to the deterioration detection device having the configuration [3] above, pixel data at the position of the deterioration detection device on the image is converted into pixel data of a color corresponding to the measurement data, so that the degree of deterioration at the measurement point on the electric wire can be easily grasped by the difference in color.

[0056] [4] A display unit (45) is provided to display the measurement results. A deterioration detection device according to any one of [1] to [3].

[0057] According to the deterioration detection device having the configuration [4] above, a display unit that displays the measurement results is provided, so that the measurement operator can easily identify deteriorated parts (corroded parts) of the electric wire by visually checking the display unit.

[0058] [5] A deterioration detection device (4); The measuring device (1), a camera (3) for photographing the entire electric wire to be measured and the measuring device, The measuring device and the camera are each wirelessly connected to the deterioration detection device. A degradation detection system (100).

[0059] According to the deterioration detection system having the configuration described in [5] above, image elements (markers M1, M2, M3) are superimposed on the position of the measuring device 1 on an image of the entire electric wire 2 to be measured and the measuring device 1, in a manner corresponding to the degree of deterioration indicated by the measurement data output during the image capture. This allows for accurate identification of deteriorated locations on the electric wire. Furthermore, since the image elements are superimposed on the position of the measuring device 1 in the captured image in a manner corresponding to the degree of deterioration, the degree of deterioration at the measurement location can be accurately identified. Furthermore, since measurement results are generated with the image elements superimposed on the captured image, even non-specialized workers can easily measure the corrosion level of the electric wire, and the time required for analysis such as converting measurement data, which was previously required, can be shortened, resulting in simplification and efficiency of the work.

[0060] [6] Acquire measurement data from a measuring device (1) that outputs measurement data indicating the degree of deterioration of the electric wire (2) (step S6); An image of the entire electric wire to be measured and the measuring device is acquired (step S1); Detecting the position of the measuring device in the image (step S4), and generating a measurement result in which an image element in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured is superimposed at the position on the image. Degradation detection methods.

[0061] According to the deterioration detection method configured as described above in [6], image elements (markers M1, M2, M3) are superimposed on the position of the measuring device 1 on an image of the entire electric wire 2 to be measured and the measuring device 1, in a manner corresponding to the degree of deterioration indicated by the measurement data output during the image capture. This allows the location of deterioration on the electric wire to be accurately identified. Furthermore, since the image elements are superimposed on the position of the measuring device 1 in the captured image in a manner corresponding to the degree of deterioration, the degree of deterioration at the measurement location can be accurately identified. Furthermore, since measurement results are generated with the image elements superimposed on the captured image, even non-specialized workers can easily measure the corrosion level of the electric wire, and the time required for analysis such as conversion of measurement data, which was previously required, is shortened, thereby simplifying and streamlining the work. [Explanation of symbols]

[0062] 1. Measuring equipment 10 Main body 11 Sensor unit 111 Excitation coil 112 detection coil 12 AC power supply section 13 Signal processing section 14 Moving section 141 Motor Driver 142 Motor 15 Control Unit 16. Radio Communication Department 2 electric wire 3 Camera 31 Photography Department 32 Radio Communication Department 4. Deterioration detection device 41 Radio Communication Department 42 Control Unit 43 Storage section 44 Input section 45 Display section 100 Deterioration Detection System M1, M2, M3 markers (image elements)

Claims

1. a measurement data acquisition unit that acquires measurement data from a measurement device that outputs measurement data that indicates the degree of deterioration of the electric wire; an image acquisition unit that acquires an image of the entire electric wire to be measured and the measuring device; an image processing unit that detects the position of the measuring device in the image and generates a measurement result in which an image element in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured is superimposed on the position on the image, Deterioration detection device.

2. the measurement data acquisition unit acquires the measurement data sequentially output by the measuring device while moving along the longitudinal direction of the electric wire, the image acquisition unit acquires video data including a plurality of the images captured at the timing when the measurement data is output from the measurement device, the image processing unit generates the measurement result by superimposing, on the video data, each image element in a manner corresponding to the degree of deterioration indicated by each measurement data output by the measuring device at each measurement point. The deterioration detection device according to claim 1 .

3. the image processing unit generates the measurement result by converting pixel data at the position on the image into pixel data of a color corresponding to the measurement data. The deterioration detection device according to claim 1 .

4. A display unit for displaying the measurement results is provided. The deterioration detection device according to claim 1 .

5. The deterioration detection device according to any one of claims 1 to 4; the measuring device; a camera that photographs the entire electric wire to be measured and the measuring device, The measuring device and the camera are each wirelessly connected to the deterioration detection device. Deterioration detection system.

6. acquiring measurement data from a measuring device that outputs measurement data indicating the degree of deterioration of the electric wire; Acquire an image of the entire electric wire to be measured and the measuring device; detecting a position of the measuring device in the image, and generating a measurement result in which an image element in a manner corresponding to the degree of deterioration indicated by the measurement data output when the image was captured is superimposed at the position on the image; Degradation detection methods.

Images