WO2016072381A1 - Rope diameter measuring system, rope diameter measuring device, rope diameter measuring method, and program - Google Patents

Rope diameter measuring system, rope diameter measuring device, rope diameter measuring method, and program Download PDF

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Publication number
WO2016072381A1
WO2016072381A1 PCT/JP2015/080910 JP2015080910W WO2016072381A1 WO 2016072381 A1 WO2016072381 A1 WO 2016072381A1 JP 2015080910 W JP2015080910 W JP 2015080910W WO 2016072381 A1 WO2016072381 A1 WO 2016072381A1
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WO
WIPO (PCT)
Prior art keywords
rope
camera
wire rope
rope diameter
shooting
Prior art date
Application number
PCT/JP2015/080910
Other languages
French (fr)
Japanese (ja)
Inventor
博吉 岸本
和博 錦
浩之 笹井
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to KR1020177012022A priority Critical patent/KR102049717B1/en
Priority to CN201580051049.2A priority patent/CN107076545B/en
Priority to DE112015005003.5T priority patent/DE112015005003B4/en
Priority to JP2016557754A priority patent/JP6333403B2/en
Publication of WO2016072381A1 publication Critical patent/WO2016072381A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/62—Control of parameters via user interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30244—Camera pose

Definitions

  • the present invention relates to a rope diameter measuring system, a rope diameter measuring device, a rope diameter measuring method, and a program for measuring a rope diameter of a wire rope.
  • Patent Document 2 a measured value is obtained from a light-receiving / receiving beam sensor installed so as to sandwich a rope at a predetermined position (near a drive sheave on which the wire is bridged) on a wire rope feed path installed in an elevator machine. And the wire rope inspection apparatus which measures a rope diameter continuously by a rope outer diameter calculation part is disclosed.
  • Patent Document 3 discloses a dam dam body displacement measuring device that can detect horizontal and vertical displacements of wires arranged on a dam dam body and can detect the displacement of the dam dam body with high accuracy.
  • a displacement amount is detected from captured image data obtained by photographing a metal sphere that is a position indicating member attached to the lower end side of the measurement wire, and the displacement of the dam dam body is measured.
  • Patent Document 4 slit light is projected onto an object to be inspected, shape lines sequentially formed on the object to be inspected by scanning of the slit light are imaged, and the object calculated from image data of each shape line formed in sequence.
  • An inspection apparatus that determines the quality of an inspection object based on the cross-sectional shape of the inspection object is disclosed.
  • Patent Document 2 is an invention intended for a rope inspection installed in an elevator machine.
  • the technique of Patent Document 2 when there is a possibility that an object other than the rope may pass through the light projecting / receiving beam sensor, the rope diameter cannot be measured accurately.
  • the present invention has been made in view of the above circumstances, and a wire installed in a wire rope acceleration / deterioration device in which a pulley intermittently appears in the measurement region and the position of the wire rope varies according to the movement of the pulley.
  • the purpose is to enable automatic measurement of the rope diameter.
  • a rope diameter measurement system includes a wire rope acceleration deterioration device, a camera, and a rope diameter measurement device.
  • the wire rope accelerated deterioration device rotates a spoke with a pulley attached to one end around the other end and repeatedly bends the wire rope hung on the pulley so that the rope position fluctuates at a constant cycle.
  • the camera shoots the wire rope.
  • the rope diameter measuring device includes an operation information acquisition unit, a timing determination unit, a camera control unit, an image information acquisition unit, and a rope diameter calculation unit.
  • the movement information acquisition unit receives movement information indicating the movement of the pulley from the wire rope acceleration deterioration device.
  • the timing determination unit determines the shooting timing of the camera based on the operation information so that the camera is focused on the wire rope.
  • the camera control unit transmits a shooting instruction signal to the camera at the shooting timing determined by the timing determination unit.
  • the image information acquisition unit receives image information indicating a captured image of the wire rope from the camera.
  • the rope diameter calculator analyzes the captured image indicated by the image information, calculates the rope diameter of the wire rope, and generates rope diameter information indicating the calculated rope diameter.
  • FIG. 3 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the first embodiment. It is a block diagram which shows the function structural example of the rope diameter measuring apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows an example of the imaging frequency of the camera which concerns on Embodiment 2.
  • FIG. 3 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the first embodiment.
  • FIG. 3 is a block diagram which shows the function structural example of the rope diameter measuring apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows an example of the imaging frequency of the camera which concerns on Embodiment 2.
  • FIG. 3 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the first embodiment. It is a block diagram which shows the function structural example of the rope diameter measuring apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows an example of the imaging frequency of the camera which concerns on Embod
  • FIG. 10 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the second embodiment. It is a figure which shows the structural example of the rope diameter measuring system which concerns on Embodiment 3 of this invention.
  • 12 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the third embodiment. It is a block diagram which shows an example of the hardware constitutions of the rope diameter measuring apparatus which concerns on embodiment of this invention. It is a figure which shows the positional relationship of the camera and wire rope in the imaging
  • the wire rope acceleration deterioration device 2 is composed of a turntable 21 and a control device 22 that controls the turntable 21.
  • the turntable 21 includes a pulley 211, a spoke 212 with the pulley 211 attached to one end, and a hub 213 that supports the other end of the spoke 212.
  • the hub 213 is rotatably supported, and the control device 22 rotates the rotating plate 21 in the direction of the arrow in the drawing by rotating the hub 213 with a motor or the like (not shown).
  • the wire rope W to be examined for deterioration is fitted in a groove (not shown) around the pulley 211 and is put on the outer periphery of the rotating disk 21, and both ends are fixed.
  • the wire rope W is engaged with the pulley 211 one after another by the rotation of the turntable 21. Since the pulley 211 rotates with respect to the spoke 212, the pulley 211 rolls without sliding on the wire rope W, and moves while bending the wire rope W continuously. Since both ends of the wire rope W are fixed, the same portion where the pulley 211 hits is repeatedly bent. One or more wire ropes W may be applied to the pulley 211. The rotating direction of the turntable 21 may be reversed.
  • control device 22 keeps the tension of the wire rope W constant during the bending operation.
  • the wire rope acceleration deterioration device 2 transmits operation information indicating the movement of the pulley 211 such as the number of rotations and the rotation speed per unit time of the pulley 211 to the rope diameter measuring device 1.
  • the imaging direction of the camera 3 is set to a direction orthogonal to the rotation surface of the turntable 21, the wire rope W moves in a direction crossing the imaging area of the camera 3. In such a case, it is difficult to obtain a clear image because it is shaken by the movement of the wire rope W. Therefore, as shown in FIG. 2A, the imaging direction of the camera 3 is set as the rotational radius direction of the turntable 21.
  • the camera 3 shoots the wire rope W when receiving the shooting instruction signal.
  • the camera 3 is set so that the wire rope W is focused at a position where the pulley 211 is not included in the imaging region, such as the middle position of the front and rear pulleys 211, for example.
  • the camera 3 generates image information indicating a captured image of the wire rope W and transmits the image information to the rope diameter measuring device 1.
  • the rope diameter measuring device 1 analyzes the captured image of the wire rope W indicated by the image information received from the camera 3 and calculates the rope diameter of the wire rope W.
  • the method for calculating the rope diameter is, for example, extracting an edge of the captured image, obtaining an approximate straight line, and setting the width of the approximate straight line as the rope diameter.
  • the rope diameter measuring device 1 outputs rope diameter information indicating the calculated rope diameter.
  • rope diameter measuring device 1 may memorize rope diameter information, and may make it accessible from the outside.
  • FIG. 3 is a block diagram illustrating a functional configuration example of the rope diameter measuring apparatus according to the first embodiment.
  • the rope diameter measuring device 1 includes an operation information acquisition unit 11, a storage unit 12, a timing determination unit 13, a camera control unit 14, an image information acquisition unit 15, a rope diameter calculation unit 16, and an output unit 17. Prepare.
  • the timing determination unit 13 determines the shooting timing of the camera 3 based on the operation information stored in the storage unit 12 so that shooting is performed at a timing when the focus of the camera 3 matches the wire rope W.
  • the timing determination unit 13 waits for the arrival of the determined shooting timing, and notifies the camera control unit 14 when the shooting timing comes.
  • the camera control unit 14 transmits a shooting instruction signal to the camera 3 when the shooting timing is notified from the timing determination unit 13.
  • the image information acquisition unit 15 receives image information from the camera 3.
  • the image information acquisition unit 15 stores the received image information in the storage unit 12.
  • the rope diameter calculation unit 16 analyzes the captured image of the wire rope W indicated by the image information stored in the storage unit 12 and calculates the rope diameter of the wire rope W.
  • the rope diameter calculation unit 16 sends rope diameter information indicating the calculated rope diameter to the output unit 17.
  • the output unit 17 outputs the rope diameter information received from the rope diameter calculation unit 16.
  • the output method may be screen display, audio output, or transmission to the user's terminal.
  • the rope diameter calculation unit 16 may store rope diameter information indicating the calculated rope diameter in the storage unit 12.
  • the rope diameter measuring device 1 may not include the output unit 17.
  • the output unit 17 may be configured to output not only the rope diameter information but also the image information stored in the storage unit 12.
  • FIG. 4 is a flowchart showing an example of the operation of the rope diameter measurement process according to the first embodiment.
  • the rope diameter measurement process starts when the rope diameter measurement device 1, the wire rope acceleration degradation device 2 and the camera 3 are activated.
  • the control device 22 of the wire rope acceleration degradation device 2 transmits operation information to the rope diameter measuring device 1 (step S11), and rotates the turntable 21 (step S12).
  • step S13; NO the wire rope acceleration deterioration device 2 repeats steps S11 to S13.
  • step S13; YES the wire rope acceleration degradation device 2 ends the process.
  • the operation information acquisition unit 11 of the rope diameter measuring device 1 receives the operation information from the wire rope acceleration degradation device 2 (step S21).
  • the motion information acquisition unit 11 stores the received motion information in the storage unit 12.
  • the timing determination unit 13 determines the shooting timing of the camera 3 based on the operation information stored in the storage unit 12 (step S22). If the determined shooting timing has not come (step S23; NO), step S23 is repeated, and the arrival of the shooting timing is awaited.
  • step S31 When the camera 3 receives the photographing instruction signal (step S31), the camera 3 photographs the wire rope W (step S32). The camera 3 produces
  • the image information acquisition unit 15 of the rope diameter measuring device 1 receives image information from the camera 3 (step S25).
  • the image information acquisition unit 15 stores the received image information in the storage unit 12.
  • the rope diameter calculation unit 16 analyzes the captured image of the wire rope W indicated by the image information stored in the storage unit 12, and calculates the rope diameter (step S26).
  • the rope diameter calculation unit 16 sends rope diameter information indicating the calculated rope diameter to the output unit 17.
  • the output unit 17 outputs the rope diameter information received from the rope diameter calculation unit 16 (step S27).
  • step S28; NO the rope diameter measuring apparatus 1 repeats steps S23 to S28.
  • step S28; YES the rope diameter measuring device 1 ends the process.
  • the photographing timing of the camera 3 is determined in accordance with the operation of the pulley 211, and the rope diameter of the wire rope W is calculated from the image photographed by the camera 3.
  • the pulley 211 appears intermittently in the measurement area, and the rope diameter of the wire rope W installed in the wire rope acceleration degradation device 2 in which the position of the wire rope W changes according to the movement of the pulley 211 is automatically measured. it can.
  • the rope diameter measuring device 1 changes the imaging frequency of the camera 3 based on the rope diameter information.
  • the rope diameter measurement system of the second embodiment has the same configuration as the rope diameter measurement system 100 of the first embodiment.
  • FIG. 5 is a block diagram showing a functional configuration example of the rope diameter measuring apparatus according to the second embodiment of the present invention. Similar to the first embodiment, the rope diameter measuring device 1 of the second embodiment includes an operation information acquisition unit 11, a storage unit 12, a timing determination unit 13, a camera control unit 14, and an image information acquisition unit 15. The rope diameter calculation unit 16 and the output unit 17 are provided.
  • the rope diameter calculation unit 16 stores rope diameter information indicating the calculated rope diameter in the storage unit 12.
  • the timing determination unit 13 determines whether to change the imaging frequency of the camera 3 based on the rope diameter information stored in the storage unit 12. When it is determined that the shooting frequency is to be changed, the timing determination unit 13 calculates the shooting frequency of the camera 3 using a predetermined calculation formula.
  • FIG. 6 is a diagram illustrating an example of the shooting frequency of the camera according to the second embodiment. Based on the rope diameter information stored in the storage unit 12, the timing determination unit 13 calculates a change amount that is a difference between the previous and current rope diameters.
  • the timing determination unit 13 determines whether or not the calculated change amount is equal to or less than the threshold value ⁇ .
  • the threshold value ⁇ is set to 0.005. The amount of change does not exceed 0.005 until the number of flexing is 3000 times. When the change amount does not exceed the threshold value ⁇ , the number of additions is zero.
  • the wire rope W was photographed every 1,000 times of bending until the number of times of bending is 4000. However, since the number of times of photographing per unit time is added after 4000 times of bending, the number of times of bending is 500 times. Photograph the wire rope W every time.
  • the number of additions is determined by rounding up after the decimal point. That is, the timing determination unit 13 adds the number of times of photographing necessary to make the change amount equal to or less than the threshold value ⁇ .
  • the timing determination unit 13 notifies the camera control unit 14 when the shooting timing comes with the changed shooting frequency.
  • Other functional configurations are the same as those in the first embodiment.
  • FIG. 7A is a diagram showing a transition of the rope diameter of the wire rope according to the second embodiment.
  • FIG. 7B is a diagram showing a transition of the amount of change in the rope diameter of the wire rope according to Embodiment 2. As shown in FIGS. 7A and 7B, it is generally known that the wire rope has a large amount of change in the rope diameter at the beginning of the bending operation (point P1) and before the rope breakage (point P2).
  • the end of the point P1 and the start of the point P2 vary depending on the material and structure used for the wire rope W, so the changing point cannot be known in advance. Therefore, by increasing the shooting frequency when the change amount exceeds the threshold value ⁇ , the rope diameter of the wire rope W at the point P1 and the point P2 where the change amount becomes large can be recorded more finely.
  • FIG. 8 is a flowchart showing an example of the operation of the rope diameter measurement process according to the second embodiment.
  • Steps S41 to S43 of the wire rope acceleration deterioration device 2 are the same as steps S11 to S13 of the wire rope acceleration deterioration device 2 in the flowchart shown in FIG.
  • Steps S51 to S57 of the rope diameter measuring device 1 are the same as steps S21 to S27 of the rope diameter measuring device 1 in the flowchart shown in FIG.
  • Steps 61 to S64 of the camera 3 are the same as steps S31 to S34 of the camera 3 in the flowchart shown in FIG. *
  • the rope diameter calculation unit 16 of the rope diameter measuring device 1 sends rope diameter information indicating the calculated rope diameter to the timing determination unit 13.
  • the timing determination unit 13 determines whether or not the change amount of the rope diameter of the wire rope W is equal to or less than the threshold value ⁇ based on the rope diameter information received from the rope diameter calculation unit 16 (step S58).
  • step S60 When the power is not turned off (step S60; NO), the rope diameter measuring device 1 repeats steps S53 to S60. When the power is turned off (step S60; YES), the rope diameter measuring device 1 ends the process.
  • the rope diameter of the wire rope W at the point where the amount of change becomes larger can be made finer by increasing the imaging frequency when the amount of change exceeds the threshold value. Can be recorded.
  • an increase in the amount of data can be suppressed as compared with the case where the wire rope W is always photographed at a high photographing frequency.
  • the timing determination unit 13 of the rope diameter measuring device 1 adds the number of times of photographing per unit time when the change amount is larger than the threshold value ⁇ .
  • the amount of change is smaller than a threshold value ⁇ (for example, ⁇ / 2), the number of photographings per unit time may be reduced.
  • FIG. 9 is a diagram illustrating a configuration example of a rope diameter measuring system according to the third embodiment of the present invention.
  • a rope diameter measurement system 300 according to the third embodiment includes a rope diameter measurement device 1, a wire rope acceleration degradation device 2, and a movable camera 3.
  • the camera 3 can be moved to four positions A to D.
  • the camera 3 is attached to a carriage that moves on a rail provided in parallel to the outer periphery of the turntable 21 of the wire rope acceleration degradation device 2, and a limit switch or an encoder is provided along the rail.
  • the carriage is configured to stop at a predetermined position.
  • the position where the camera 3 can move is not limited to four positions, and any position where the wire rope W can be photographed may be used.
  • the rope diameter measuring apparatus 1 includes an operation information acquisition unit 11, a storage unit 12, a timing determination unit 13, a camera control unit 14, and an image information acquisition unit 15.
  • the rope diameter calculation unit 16 and the output unit 17 are provided.
  • the timing determination unit 13 determines to change the shooting frequency based on the rope diameter information stored in the storage unit 12, the timing determination unit 13 calculates the shooting frequency of the camera 3 and simultaneously determines the shooting position of the camera 3.
  • the timing determination unit 13 takes the number of times of photographing of the camera 3 when adding the number of times of photographing per unit time.
  • the positions are determined as position D and position C.
  • the timing determination unit 13 determines the shooting position of the camera 3 as a position D, a position C, and a position B when adding the number of shootings per unit time twice.
  • the timing determination unit 13 determines the shooting position of the camera 3 as a position D, a position C, a position B, and a position A when adding the number of shootings per unit time three times.
  • the initial setting position of the camera 3 may not be the position D, and the shooting positions of the camera 3 that are increased every time the number of shootings is added may not be the order of the position D, the position C, the position B, and the position A. , In any order.
  • the timing determination unit 13 generates shooting condition information indicating the determined shooting position of the camera 3.
  • the timing determination unit 13 notifies the camera control unit 14 when the shooting timing comes and sends shooting condition information.
  • the camera control unit 14 When the camera control unit 14 is notified of the shooting timing from the timing determination unit 13 and receives the shooting condition information, the camera control unit 14 transmits a shooting instruction signal to the camera 3 together with the shooting condition information.
  • the camera 3 shoots the wire rope W at the timing of receiving the shooting instruction signal. At this time, the camera 3 photographs the wire rope W at the photographing position indicated by the photographing condition information received together with the photographing instruction signal. The camera 3 moves when the shooting position indicated by the shooting condition information is different from the current position.
  • the timing determination unit 13 may change the shooting timing in consideration of the moving time of the camera 3.
  • Other functional configurations are the same as those in the second embodiment.
  • FIG. 10 is a flowchart showing an example of the operation of the rope diameter measurement process according to the third embodiment.
  • Steps S71 to S73 of the wire rope accelerated deterioration device 2 are the same as steps S41 to S43 of the wire rope accelerated deterioration device 2 in the flowchart shown in FIG.
  • Steps S81, S82, and S85 to S89 of the rope diameter measuring device 1 are the same as Steps S51, S52, and S55 to S59 of the rope diameter measuring device 1 in the flowchart shown in FIG.
  • the timing determination unit 13 of the rope diameter measuring device 1 changes the shooting frequency of the camera 3 (step S89), and determines the shooting position of the camera 3.
  • the timing determination unit 13 generates shooting condition information indicating the determined shooting position of the camera 3 (step S90).
  • step S91 When the power is not turned off (step S91; NO), the process of the rope diameter measuring device 1 returns to step S83.
  • step S83 When the shooting timing of the changed shooting frequency comes (step S83; YES), the timing determination unit 13 notifies the camera control unit 14 and sends shooting condition information.
  • the camera control unit 14 When the camera control unit 14 is notified of the shooting timing from the timing determination unit 13 and receives the shooting condition information, the camera control unit 14 transmits a shooting instruction signal to the camera 3 together with the shooting condition information (step S84).
  • step S101 When the camera 3 receives the shooting instruction signal together with the shooting condition information (step S101), the camera 3 takes a picture of the wire rope W at the shooting position indicated by the shooting condition information received together with the shooting instruction signal (step S102). The camera 3 produces
  • step S91 When the power is turned off (step S91; YES), the rope diameter measuring device 1 ends the process.
  • the imaging frequency is increased and the wire rope W is imaged at a plurality of locations, so that a wider range of wires can be obtained. Changes in the rope W can be recorded.
  • one camera 3 is used for photographing at a plurality of locations, an increase in cost can be suppressed. By photographing a wide range, the possibility that the change of the broken portion of the wire rope W can be recorded is increased.
  • the timing determination unit 13 of the rope diameter measuring device 1 determines the shooting frequency of the camera 3 and at the same time determines the shooting position of the camera 3. Not only this but other imaging conditions may be changed.
  • the camera 3 may be provided with a zoom function, and the wire rope W may be enlarged and photographed as the number of photographings per unit time increases.
  • the shooting condition information indicates the magnification of the camera 3 and the like.
  • the timing determination unit 13 of the rope diameter measuring device 1 captures the imaging frequency of the camera 3 when the amount of change in the rope diameter indicated by the rope diameter information received from the rope diameter calculation unit 16 exceeds the threshold value. At the same time, the shooting conditions of the camera 3 are changed. Not only this but the timing determination part 13 may change only the imaging conditions of the camera 3, when the variation
  • FIG. 11 is a block diagram showing an example of a hardware configuration of the rope diameter measuring apparatus according to the embodiment of the present invention.
  • the rope diameter measuring device 1 includes a control unit 31, a main storage unit 32, an external storage unit 33, an operation unit 34, a display unit 35, an input / output unit 36, and a transmission / reception unit 37.
  • the main storage unit 32, the external storage unit 33, the operation unit 34, the display unit 35, and the transmission / reception unit 37 are all connected to the control unit 31 via the internal bus 30.
  • the control unit 31 includes a CPU (Central Processing Unit) and the like, and in accordance with a control program 39 stored in the external storage unit 33, the timing determination unit 13, the camera control unit 14, and the rope diameter calculation unit 16 of the rope diameter measuring device 1. Each process is executed.
  • CPU Central Processing Unit
  • the external storage unit 33 includes a nonvolatile memory such as a flash memory, a hard disk, a DVD-RAM (Digital Versatile Disc Random-Access Memory), a DVD-RW (Digital Versatile Disc Disc ReWritable), and performs processing of the rope diameter measuring device 1.
  • a program to be executed by the control unit 31 is stored in advance, and data stored by the program is supplied to the control unit 31 in accordance with an instruction from the control unit 31, and the data supplied from the control unit 31 is stored.
  • the storage unit 12 is configured in the external storage unit 33.
  • the operation unit 34 includes a pointing device such as a keyboard and a mouse, and an interface device that connects the keyboard and the pointing device to the internal bus 30.
  • a pointing device such as a keyboard and a mouse
  • an interface device that connects the keyboard and the pointing device to the internal bus 30.
  • the display unit 35 includes a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display), and the display unit 35 functions as the output unit 17.
  • CTR Cathode Ray Tube
  • LCD Liquid Crystal Display
  • the input / output unit 36 includes a serial interface or a parallel interface.
  • the input / output unit 36 is connected to the wire rope acceleration degradation device 2 and the camera 3.
  • the input / output unit 36 functions as the operation information acquisition unit 11, the camera control unit 14, and the image information acquisition unit 15.
  • the transmission / reception unit 37 includes a network termination device or a wireless communication device connected to a network, and a serial interface or a LAN (Local Area Network) interface connected to them.
  • the transmission / reception unit 37 is connected to the user terminal via the network and functions as the output unit 17.
  • the transmission / reception unit 37 functions as an interface for accessing the storage unit 12 from the outside.
  • the function of the rope diameter measuring device 1 is realized by sharing of an OS (operating system) and an application program or by cooperation between the OS and the application program, only the application program portion is stored in a recording medium or a storage device. It may be stored.
  • the computer program may be posted on a bulletin board (BBS, Bulletin Board System) on a communication network, and the computer program may be distributed via the network.
  • BSS bulletin Board System
  • the computer program may be started and executed in the same manner as other application programs under the control of the OS, so that the above-described processing may be executed.
  • FIG. 2B is a side view of the wire rope acceleration deterioration device and the camera according to the modification. As shown in FIG. 2B, when the rotating shaft 230 is shared and two or more wire rope acceleration degradation devices 2 are installed, two or more wires are moved by moving the camera 3 to an appropriate position. You may measure a rope diameter with respect to the rope acceleration degradation apparatus 2.
  • FIG. 2B when the rotating shaft 230 is shared and two or more wire rope acceleration degradation devices 2 are installed, two or more wires are moved by moving the camera 3 to an appropriate position. You may measure a rope diameter with respect to the rope acceleration degradation apparatus 2.
  • the focal length is made variable by attaching a zoom lens to the camera 3.
  • the rope diameter may be measured, or the camera 3 is moved in the focal depth direction while keeping the focal length constant, and the wire rope W is photographed at the in-focus distance to measure the rope diameter. May be performed.
  • FIG. 12 is a diagram showing a positional relationship between the camera and the wire rope at the photographing timing of the rope diameter measuring apparatus according to the embodiment of the present invention.
  • the wire rope W performs imaging at a timing positioned at a right angle with respect to the focal depth direction of the camera 3.
  • the illumination for photographing may be installed on the opposite side of the camera 3 with the wire rope W interposed therebetween, and the transmitted light may be used. Also good.
  • the surface of the wire rope W can be photographed by photographing using the reflected light of the illumination for photographing. By checking the image taken at the time corresponding to the measurement of the rope diameter, it is possible to check the rope diameter and the surface state (wear state, rust, etc.) of the wire rope W in association with each other.
  • the present invention can be used in, for example, a rope diameter measurement system that measures the rope diameter of a wire rope.
  • 1 rope diameter measuring device 1 rope diameter measuring device, 2 wire rope acceleration deterioration device, 3 camera, 11 operation information acquisition unit, 12 storage unit, 13 timing determination unit, 14 camera control unit, 15 image information acquisition unit, 16 rope diameter calculation unit, 17 output Part, 21 turntable, 22 control device, 30 internal bus, 31 control part, 32 main storage part, 33 external storage part, 34 operation part, 35 display part, 36 input / output part, 37 transmission / reception part, 39 control program, 100 Rope diameter measuring system, 211 pulley, 212 spoke, 213 hub, 230 rotating shaft, 300 rope diameter measuring system, W wire rope.

Abstract

According to the present invention, a wire rope accelerated degradation device (2) causes a rotary disk (21) to rotate, causes a wire rope (W) to bend repeatedly, and transmits operation information showing the movement of pulleys (211) to a rope diameter measuring device (1). The rope diameter measuring device (1) determines the image-capturing timing of a camera (3) on the basis of the received operation information. The rope diameter measuring device (1) transmits to the camera (3) an image-capture instruction signal for instructing that image capturing be performed at the determined image-capturing timing. The camera (3) captures an image of the wire rope (W) at the timing when the image-capture instruction signal is received, and transmits image information showing the captured image to the rope diameter measuring device (1). The rope diameter measuring device (1) calculates the rope diameter of the wire rope (W) on the basis of the received image information, and generates rope diameter information showing the calculated rope diameter.

Description

ロープ径計測システム、ロープ径計測装置、ロープ径計測方法およびプログラムRope diameter measuring system, rope diameter measuring device, rope diameter measuring method and program
　本発明は、ワイヤーロープのロープ径を計測するロープ径計測システム、ロープ径計測装置、ロープ径計測方法およびプログラムに関する。 The present invention relates to a rope diameter measuring system, a rope diameter measuring device, a rope diameter measuring method, and a program for measuring a rope diameter of a wire rope.
　現在、ワイヤーロープの点検や検査においては、目視による状態確認や、各種計測機器を用いた検査を人間が行っている。主要な管理項目はＪＩＳにて規定されており、目視による状態確認、外観写真撮影、ロープ径計測などが該当する。各種計測ではデジタルカメラ、マイクロメーターやメジャーなどが用いられる。 Currently, in the inspection and inspection of wire ropes, humans are conducting visual status checks and inspections using various measuring devices. The main management items are stipulated by JIS, and include state confirmation by visual observation, appearance photography, and rope diameter measurement. Digital cameras, micrometers, majors, etc. are used for various measurements.
　効率を高めるために、これらの点検や検査を自動化する技術が開発されている。 In order to increase efficiency, a technology for automating these inspections and inspections has been developed.
　特許文献１には、エレベータのカゴ付近ロープを撮影可能な位置（ロープから一定距離離れた位置）にカメラを固定し、走行するロープを連続的に撮影した二値化画像から輪郭線を抽出することで、連続的にロープ径を計測するワイヤーロープ検査装置が開示されている。 In Patent Document 1, a camera is fixed at a position where a rope near an elevator car can be photographed (a position away from the rope), and a contour line is extracted from a binarized image obtained by continuously photographing a traveling rope. Thus, a wire rope inspection device that continuously measures the rope diameter is disclosed.
　特許文献２には、エレベータ実機に架設されたワイヤーロープの送り経路上の所定位置（ワイヤーが架け渡される駆動綱車近傍）に、ロープを挟み込むように設置した投受光ビームセンサから計測値を取得し、ロープ外径算出部によりロープ径を連続的に計測するワイヤーロープ検査装置が開示されている。 In Patent Document 2, a measured value is obtained from a light-receiving / receiving beam sensor installed so as to sandwich a rope at a predetermined position (near a drive sheave on which the wire is bridged) on a wire rope feed path installed in an elevator machine. And the wire rope inspection apparatus which measures a rope diameter continuously by a rope outer diameter calculation part is disclosed.
　特許文献３には、ダムの堤体に配置したワイヤーの水平方向および鉛直方向の変位を検出でき、ダム堤体の変位を精度良く検出できるダム堤体の変位測定装置が開示されている。特許文献３の技術では、測定ワイヤーの下端側に取り付けた位置指示部材である金属球を撮影した撮影画像データから変位量を検出し、ダム堤体の変位を測定する。 Patent Document 3 discloses a dam dam body displacement measuring device that can detect horizontal and vertical displacements of wires arranged on a dam dam body and can detect the displacement of the dam dam body with high accuracy. In the technique of Patent Document 3, a displacement amount is detected from captured image data obtained by photographing a metal sphere that is a position indicating member attached to the lower end side of the measurement wire, and the displacement of the dam dam body is measured.
　特許文献４には、被検査物にスリット光を投射し、スリット光の走査により被検査物上に順次形成される形状線を撮像し、順次形成された各形状線の撮像データから算出した被検査物の断面形状に基づいて被検査物の良否を判定する検査装置が開示されている。 In Patent Document 4, slit light is projected onto an object to be inspected, shape lines sequentially formed on the object to be inspected by scanning of the slit light are imaged, and the object calculated from image data of each shape line formed in sequence. An inspection apparatus that determines the quality of an inspection object based on the cross-sectional shape of the inspection object is disclosed.
特開２０１１－１３２０１０号公報JP 2011-1332010 A 特開２００８－２１４０３７号公報JP 2008-214037 A 特開２０１２－５８１３６号公報JP 2012-58136 A 特開２０１２－３７４８８号公報JP 2012-37488 A
　ワイヤーロープの劣化を調べる装置として、ワイヤーロープ加速劣化装置がある。ワイヤーロープ加速劣化装置は、一方の端に滑車が取り付けられたスポークを他方の端の回りに回転させて、滑車にかけられたワイヤーロープに繰り返し屈曲動作をさせ、ロープ位置が一定の周期で変動する。ワイヤーロープ加速劣化装置では、滑車が断続的に計測領域に現れ、滑車の動きに合わせてワイヤーロープの位置が変動するため、上記の技術を適用できない。 There is a wire rope acceleration deterioration device as a device for checking the deterioration of the wire rope. The wire rope accelerated deterioration device rotates a spoke with a pulley attached to one end around the other end and repeatedly bends the wire rope hung on the pulley so that the rope position fluctuates at a constant cycle. . In the wire rope accelerated deterioration device, the pulley appears intermittently in the measurement region, and the position of the wire rope varies according to the movement of the pulley, so the above technique cannot be applied.
　特許文献１は、エレベータ実機に架設されたロープ検査を対象とした発明である。特許文献１の技術は、カメラから見てロープは長手方向に進行するため、カメラとロープとの距離が常に一定である。この技術では、ロープとカメラの距離が変動する場合、あるいは、ロープ以外の物体も撮影される可能性がある場合、ロープ径を正確に計測することができない。 Patent Document 1 is an invention intended for a rope inspection built on an elevator machine. In the technique of Patent Literature 1, since the rope travels in the longitudinal direction when viewed from the camera, the distance between the camera and the rope is always constant. With this technique, when the distance between the rope and the camera fluctuates, or when an object other than the rope may be photographed, the rope diameter cannot be accurately measured.
　特許文献２は、エレベータ実機に架設されたロープ検査を対象とした発明である。特許文献２の技術では、投受光ビームセンサ内にロープ以外の物体が通過する可能性がある場合、ロープ径を正確に計測することができない。 Patent Document 2 is an invention intended for a rope inspection installed in an elevator machine. In the technique of Patent Document 2, when there is a possibility that an object other than the rope may pass through the light projecting / receiving beam sensor, the rope diameter cannot be measured accurately.
　特許文献３および４の技術は、ワイヤーロープのロープ径を計測する技術ではない。 The techniques of Patent Documents 3 and 4 are not techniques for measuring the diameter of a wire rope.
　本発明は、上述のような事情に鑑みてなされたもので、滑車が断続的に計測領域に現れ、滑車の動きに合わせてワイヤーロープの位置が変動するワイヤーロープ加速劣化装置に設置されたワイヤーロープのロープ径を自動で計測可能にすることを目的とする。 The present invention has been made in view of the above circumstances, and a wire installed in a wire rope acceleration / deterioration device in which a pulley intermittently appears in the measurement region and the position of the wire rope varies according to the movement of the pulley. The purpose is to enable automatic measurement of the rope diameter.
　上記目的を達成するため、本発明の第１の観点に係るロープ径計測システムは、ワイヤーロープ加速劣化装置と、カメラと、ロープ径計測装置とを備える。ワイヤーロープ加速劣化装置は、一方の端に滑車が取り付けられたスポークを他方の端の回りに回転させて、滑車にかけられたワイヤーロープに繰り返し屈曲動作をさせ、ロープ位置が一定の周期で変動する。カメラは、ワイヤーロープを撮影する。ロープ径計測装置は、動作情報取得部、タイミング決定部、カメラ制御部、画像情報取得部、および、ロープ径計算部を備える。動作情報取得部は、ワイヤーロープ加速劣化装置から滑車の動きを示す動作情報を受信する。タイミング決定部は、動作情報に基づいて、カメラの焦点がワイヤーロープに合うように、カメラの撮影タイミングを決定する。カメラ制御部は、タイミング決定部が決定した撮影タイミングで撮影指示信号をカメラに送信する。画像情報取得部は、カメラからワイヤーロープの撮影画像を示す画像情報を受信する。ロープ径計算部は、画像情報が示す撮影画像を解析してワイヤーロープのロープ径を算出し、算出したロープ径を示すロープ径情報を生成する。カメラは、撮影指示信号を受信すると、ワイヤーロープを撮影する。 In order to achieve the above object, a rope diameter measurement system according to a first aspect of the present invention includes a wire rope acceleration deterioration device, a camera, and a rope diameter measurement device. The wire rope accelerated deterioration device rotates a spoke with a pulley attached to one end around the other end and repeatedly bends the wire rope hung on the pulley so that the rope position fluctuates at a constant cycle. . The camera shoots the wire rope. The rope diameter measuring device includes an operation information acquisition unit, a timing determination unit, a camera control unit, an image information acquisition unit, and a rope diameter calculation unit. The movement information acquisition unit receives movement information indicating the movement of the pulley from the wire rope acceleration deterioration device. The timing determination unit determines the shooting timing of the camera based on the operation information so that the camera is focused on the wire rope. The camera control unit transmits a shooting instruction signal to the camera at the shooting timing determined by the timing determination unit. The image information acquisition unit receives image information indicating a captured image of the wire rope from the camera. The rope diameter calculator analyzes the captured image indicated by the image information, calculates the rope diameter of the wire rope, and generates rope diameter information indicating the calculated rope diameter. When the camera receives the photographing instruction signal, the camera photographs the wire rope.
　本発明によれば、滑車の動作に合わせてカメラの撮影タイミングを決定し、カメラが撮影した画像からワイヤーロープのロープ径を計算することで、滑車が断続的に計測領域に現れ、滑車の動きに合わせてワイヤーロープの位置が変動するワイヤーロープ加速劣化装置に設置されたワイヤーロープのロープ径を自動で計測できる。 According to the present invention, the shooting timing of the camera is determined in accordance with the operation of the pulley, and the rope diameter of the wire rope is calculated from the image captured by the camera. It is possible to automatically measure the rope diameter of the wire rope installed in the wire rope acceleration / deterioration device where the position of the wire rope varies according to the.
本発明の実施の形態１に係るロープ径計測システムの構成例を示す図である。It is a figure which shows the structural example of the rope diameter measuring system which concerns on Embodiment 1 of this invention. 実施の形態１に係るワイヤーロープ加速劣化装置およびカメラの側面図である。It is a side view of the wire rope acceleration degradation apparatus and camera which concern on Embodiment 1. FIG. 変形例に係るワイヤーロープ加速劣化装置およびカメラの側面図である。It is a side view of the wire rope acceleration degradation apparatus and camera which concern on a modification. 実施の形態１に係るロープ径計測装置の機能構成例を示すブロック図である。It is a block diagram which shows the function structural example of the rope diameter measuring apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係るロープ径計測処理の動作の一例を示すフローチャートである。3 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the first embodiment. 本発明の実施の形態２に係るロープ径計測装置の機能構成例を示すブロック図である。It is a block diagram which shows the function structural example of the rope diameter measuring apparatus which concerns on Embodiment 2 of this invention. 実施の形態２に係るカメラの撮影頻度の一例を示す図である。It is a figure which shows an example of the imaging frequency of the camera which concerns on Embodiment 2. FIG. 実施の形態２に係るワイヤーロープのロープ径の推移を示す図である。It is a figure which shows transition of the rope diameter of the wire rope which concerns on Embodiment 2. FIG. 実施の形態２に係るワイヤーロープのロープ径の変化量の推移を示す図である。It is a figure which shows transition of the variation | change_quantity of the rope diameter of the wire rope which concerns on Embodiment 2. FIG. 実施の形態２に係るロープ径計測処理の動作の一例を示すフローチャートである。10 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the second embodiment. 本発明の実施の形態３に係るロープ径計測システムの構成例を示す図である。It is a figure which shows the structural example of the rope diameter measuring system which concerns on Embodiment 3 of this invention. 実施の形態３に係るロープ径計測処理の動作の一例を示すフローチャートである。12 is a flowchart illustrating an example of an operation of a rope diameter measurement process according to the third embodiment. 本発明の実施の形態に係るロープ径計測装置のハードウェア構成の一例を示すブロック図である。It is a block diagram which shows an example of the hardware constitutions of the rope diameter measuring apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るロープ径計測装置の撮影タイミングにおけるカメラとワイヤーロープの位置関係を示す図である。It is a figure which shows the positional relationship of the camera and wire rope in the imaging | photography timing of the rope diameter measuring apparatus which concerns on embodiment of this invention.
　以下に、本発明を実施するための形態について図面を参照して詳細に説明する。なお、図中同一または相当する部分には同じ符号を付す。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the part which is the same or it corresponds in a figure.
（実施の形態１）
　図１は、本発明の実施の形態１に係るロープ径計測システムの構成例を示す図である。ロープ径計測システム１００は、ロープ径計測装置１と、ワイヤーロープ加速劣化装置２と、カメラ３とで構成される。ロープ径計測装置１は、ワイヤーロープ加速劣化装置２と、カメラ３と接続する。 (Embodiment 1)
FIG. 1 is a diagram illustrating a configuration example of a rope diameter measurement system according to Embodiment 1 of the present invention. The rope diameter measurement system 100 includes a rope diameter measurement device 1, a wire rope acceleration degradation device 2, and a camera 3. The rope diameter measuring device 1 is connected to the wire rope acceleration degradation device 2 and the camera 3.
　ワイヤーロープ加速劣化装置２は、回転盤２１と、回転盤２１を制御する制御装置２２とで構成される。回転盤２１は、滑車２１１と、一方の端に滑車２１１が取り付けられたスポーク２１２と、スポーク２１２の他方の端を支持するハブ２１３とで構成される。 The wire rope acceleration deterioration device 2 is composed of a turntable 21 and a control device 22 that controls the turntable 21. The turntable 21 includes a pulley 211, a spoke 212 with the pulley 211 attached to one end, and a hub 213 that supports the other end of the spoke 212.
　ハブ２１３は回転可能に支持されており、制御装置２２は、モータなど（図示せず）でハブ２１３を回転させることで、回転盤２１を図中の矢印の方向に回転させる。劣化を調べる対象のワイヤーロープＷは、滑車２１１の周囲の溝（図示せず）に嵌められて回転盤２１の外周にかけられ、両端が固定される。 The hub 213 is rotatably supported, and the control device 22 rotates the rotating plate 21 in the direction of the arrow in the drawing by rotating the hub 213 with a motor or the like (not shown). The wire rope W to be examined for deterioration is fitted in a groove (not shown) around the pulley 211 and is put on the outer periphery of the rotating disk 21, and both ends are fixed.
　回転盤２１の回転により、滑車２１１に次々にワイヤーロープＷが係合する。滑車２１１はスポーク２１２に対して回転するので、滑車２１１はワイヤーロープＷの上をすべることなく転がり、ワイヤーロープＷを連続的に屈曲させながら移動する。ワイヤーロープＷは両端が固定されているので、滑車２１１の当たる同じ部分が繰り返し屈曲される。滑車２１１にかけるワイヤーロープＷは１本でもよいし、複数でもよい。回転盤２１の回転方向は逆向きでもよい。 The wire rope W is engaged with the pulley 211 one after another by the rotation of the turntable 21. Since the pulley 211 rotates with respect to the spoke 212, the pulley 211 rolls without sliding on the wire rope W, and moves while bending the wire rope W continuously. Since both ends of the wire rope W are fixed, the same portion where the pulley 211 hits is repeatedly bent. One or more wire ropes W may be applied to the pulley 211. The rotating direction of the turntable 21 may be reversed.
　また、屈曲動作をさせる間、制御装置２２は、ワイヤーロープＷの張力を一定に保つ。ワイヤーロープ加速劣化装置２は、滑車２１１の単位時間あたりの回転数や回転速度など、滑車２１１の動きを示す動作情報をロープ径計測装置１に送信する。 Further, the control device 22 keeps the tension of the wire rope W constant during the bending operation. The wire rope acceleration deterioration device 2 transmits operation information indicating the movement of the pulley 211 such as the number of rotations and the rotation speed per unit time of the pulley 211 to the rope diameter measuring device 1.
　図２Ａは、実施の形態１に係るワイヤーロープ加速劣化装置およびカメラの側面図である。図１および図２Ａに示すような位置関係でワイヤーロープ加速劣化装置２およびカメラ３は設置されている。 FIG. 2A is a side view of the wire rope acceleration deterioration device and camera according to Embodiment 1. FIG. The wire rope acceleration degradation device 2 and the camera 3 are installed in a positional relationship as shown in FIGS. 1 and 2A.
　図１では、回転盤２１の回転途中の状態を二点鎖線で示す。回転盤２１を回転させてワイヤーロープＷを屈曲させると、ワイヤーロープＷの一点は、回転盤２１の半径方向に往復運動する。カメラ３の撮像方向を回転盤２１の回転半径方向とすると、ワイヤーロープＷは焦点深度方向に往復するので、カメラ３の焦点がワイヤーロープＷに合う時点が限られる。そこで、ロープ径計測装置１は、ワイヤーロープ加速劣化装置２から受信した動作情報に基づいて、カメラ３の焦点がワイヤーロープＷに合うタイミングで撮影するよう、カメラ３の撮影タイミングを決定する。 In FIG. 1, a state in the middle of rotation of the turntable 21 is indicated by a two-dot chain line. When the turntable 21 is rotated to bend the wire rope W, one point of the wire rope W reciprocates in the radial direction of the turntable 21. If the imaging direction of the camera 3 is the rotational radius direction of the turntable 21, the wire rope W reciprocates in the focal depth direction, so that the time point when the camera 3 is focused on the wire rope W is limited. Therefore, the rope diameter measuring device 1 determines the shooting timing of the camera 3 based on the operation information received from the wire rope acceleration degradation device 2 so that the camera 3 performs shooting at the timing when the focus of the camera 3 matches the wire rope W.
　例えば、カメラ３の撮像方向を回転盤２１の回転面に直交する方向にすると、ワイヤーロープＷは、カメラ３の撮影領域を横切る方向に動く。このような場合には、ワイヤーロープＷの動きでぶれるため、鮮明な画像を得るのが難しい。したがって、図２Ａに示すように、カメラ３の撮像方向を回転盤２１の回転半径方向とする。 For example, when the imaging direction of the camera 3 is set to a direction orthogonal to the rotation surface of the turntable 21, the wire rope W moves in a direction crossing the imaging area of the camera 3. In such a case, it is difficult to obtain a clear image because it is shaken by the movement of the wire rope W. Therefore, as shown in FIG. 2A, the imaging direction of the camera 3 is set as the rotational radius direction of the turntable 21.
　ロープ径計測装置１は、決定した撮影タイミングで撮影指示信号をカメラ３に送信する。 The rope diameter measuring device 1 transmits a shooting instruction signal to the camera 3 at the determined shooting timing.
　カメラ３は、撮影指示信号を受信するとワイヤーロープＷを撮影する。カメラ３は、例えば、前後の滑車２１１の真ん中の位置のような、撮影領域に滑車２１１が含まれない位置で、ワイヤーロープＷに焦点が合うように設定されている。カメラ３は、ワイヤーロープＷの撮影画像を示す画像情報を生成し、ロープ径計測装置１に送信する。 The camera 3 shoots the wire rope W when receiving the shooting instruction signal. The camera 3 is set so that the wire rope W is focused at a position where the pulley 211 is not included in the imaging region, such as the middle position of the front and rear pulleys 211, for example. The camera 3 generates image information indicating a captured image of the wire rope W and transmits the image information to the rope diameter measuring device 1.
　ロープ径計測装置１は、カメラ３から受信した画像情報が示すワイヤーロープＷの撮影画像を解析し、ワイヤーロープＷのロープ径を算出する。ロープ径の算出方法は、例えば、撮影画像のエッジを抽出し、近似直線を求めて、近似直線の幅をロープ径とする。ロープ径計測装置１は、算出したロープ径を示すロープ径情報を出力する。あるいは、ロープ径計測装置１は、ロープ径情報を記憶し、外部からアクセス可能にしてもよい。 The rope diameter measuring device 1 analyzes the captured image of the wire rope W indicated by the image information received from the camera 3 and calculates the rope diameter of the wire rope W. The method for calculating the rope diameter is, for example, extracting an edge of the captured image, obtaining an approximate straight line, and setting the width of the approximate straight line as the rope diameter. The rope diameter measuring device 1 outputs rope diameter information indicating the calculated rope diameter. Or rope diameter measuring device 1 may memorize rope diameter information, and may make it accessible from the outside.
　図３は、実施の形態１に係るロープ径計測装置の機能構成例を示すブロック図である。ロープ径計測装置１は、動作情報取得部１１と、記憶部１２と、タイミング決定部１３と、カメラ制御部１４と、画像情報取得部１５と、ロープ径計算部１６と、出力部１７とを備える。 FIG. 3 is a block diagram illustrating a functional configuration example of the rope diameter measuring apparatus according to the first embodiment. The rope diameter measuring device 1 includes an operation information acquisition unit 11, a storage unit 12, a timing determination unit 13, a camera control unit 14, an image information acquisition unit 15, a rope diameter calculation unit 16, and an output unit 17. Prepare.
　動作情報取得部１１は、ワイヤーロープ加速劣化装置２から動作情報を受信する。動作情報取得部１１は、受信した動作情報を記憶部１２に記憶する。 The operation information acquisition unit 11 receives operation information from the wire rope acceleration degradation device 2. The motion information acquisition unit 11 stores the received motion information in the storage unit 12.
　タイミング決定部１３は、記憶部１２が記憶する動作情報に基づいて、カメラ３の焦点がワイヤーロープＷに合うタイミングで撮影するよう、カメラ３の撮影タイミングを決定する。タイミング決定部１３は、決定した撮影タイミングの到来を待機し、撮影タイミングが来たらカメラ制御部１４に通知する。 The timing determination unit 13 determines the shooting timing of the camera 3 based on the operation information stored in the storage unit 12 so that shooting is performed at a timing when the focus of the camera 3 matches the wire rope W. The timing determination unit 13 waits for the arrival of the determined shooting timing, and notifies the camera control unit 14 when the shooting timing comes.
　カメラ制御部１４は、タイミング決定部１３から撮影タイミングを通知されると、撮影指示信号をカメラ３に送信する。 The camera control unit 14 transmits a shooting instruction signal to the camera 3 when the shooting timing is notified from the timing determination unit 13.
　画像情報取得部１５は、カメラ３から画像情報を受信する。画像情報取得部１５は、受信した画像情報を記憶部１２に記憶する。 The image information acquisition unit 15 receives image information from the camera 3. The image information acquisition unit 15 stores the received image information in the storage unit 12.
　ロープ径計算部１６は、記憶部１２が記憶する画像情報が示すワイヤーロープＷの撮影画像を解析し、ワイヤーロープＷのロープ径を算出する。ロープ径計算部１６は、算出したロープ径を示すロープ径情報を出力部１７に送る。 The rope diameter calculation unit 16 analyzes the captured image of the wire rope W indicated by the image information stored in the storage unit 12 and calculates the rope diameter of the wire rope W. The rope diameter calculation unit 16 sends rope diameter information indicating the calculated rope diameter to the output unit 17.
　出力部１７は、ロープ径計算部１６から受信したロープ径情報を出力する。出力方法は、画面表示でもよいし、音声出力でもよいし、ユーザの端末に送信してもよい。 The output unit 17 outputs the rope diameter information received from the rope diameter calculation unit 16. The output method may be screen display, audio output, or transmission to the user's terminal.
　なお、ロープ径計算部１６は、算出したロープ径を示すロープ径情報を記憶部１２に記憶してもよい。この場合、ロープ径計測装置１は出力部１７を備えない構成でもよい。また、出力部１７は、ロープ径情報だけでなく、記憶部１２が記憶する画像情報も出力する構成にしてもよい。 The rope diameter calculation unit 16 may store rope diameter information indicating the calculated rope diameter in the storage unit 12. In this case, the rope diameter measuring device 1 may not include the output unit 17. Further, the output unit 17 may be configured to output not only the rope diameter information but also the image information stored in the storage unit 12.
　図４は、実施の形態１に係るロープ径計測処理の動作の一例を示すフローチャートである。ロープ径計測処理は、ロープ径計測装置１、ワイヤーロープ加速劣化装置２およびカメラ３が起動すると開始する。 FIG. 4 is a flowchart showing an example of the operation of the rope diameter measurement process according to the first embodiment. The rope diameter measurement process starts when the rope diameter measurement device 1, the wire rope acceleration degradation device 2 and the camera 3 are activated.
　ワイヤーロープ加速劣化装置２の制御装置２２は、動作情報をロープ径計測装置１に送信し（ステップＳ１１）、回転盤２１を回転させる（ステップＳ１２）。電源がＯＦＦにならない場合（ステップＳ１３；ＮＯ）、ワイヤーロープ加速劣化装置２は、ステップＳ１１～ステップＳ１３を繰り返す。電源がＯＦＦになると（ステップＳ１３；ＹＥＳ）、ワイヤーロープ加速劣化装置２は、処理を終了する。 The control device 22 of the wire rope acceleration degradation device 2 transmits operation information to the rope diameter measuring device 1 (step S11), and rotates the turntable 21 (step S12). When the power is not turned off (step S13; NO), the wire rope acceleration deterioration device 2 repeats steps S11 to S13. When the power is turned off (step S13; YES), the wire rope acceleration degradation device 2 ends the process.
　ロープ径計測装置１の動作情報取得部１１は、ワイヤーロープ加速劣化装置２から動作情報を受信する（ステップＳ２１）。動作情報取得部１１は、受信した動作情報を記憶部１２に記憶する。 The operation information acquisition unit 11 of the rope diameter measuring device 1 receives the operation information from the wire rope acceleration degradation device 2 (step S21). The motion information acquisition unit 11 stores the received motion information in the storage unit 12.
　タイミング決定部１３は、記憶部１２が記憶する動作情報に基づいて、カメラ３の撮影タイミングを決定する（ステップＳ２２）。決定した撮影タイミングが来ていない場合（ステップＳ２３；ＮＯ）、ステップＳ２３を繰り返し、撮影タイミングの到来を待機する。 The timing determination unit 13 determines the shooting timing of the camera 3 based on the operation information stored in the storage unit 12 (step S22). If the determined shooting timing has not come (step S23; NO), step S23 is repeated, and the arrival of the shooting timing is awaited.
　撮影タイミングが来た場合（ステップＳ２３；ＹＥＳ）、タイミング決定部１３は、カメラ制御部１４に通知する。カメラ制御部１４は、タイミング決定部１３から撮影タイミングを通知されると、撮影指示信号をカメラ３に送信する（ステップＳ２４）。 When the shooting timing has come (step S23; YES), the timing determination unit 13 notifies the camera control unit 14. When notified of the shooting timing from the timing determining unit 13, the camera control unit 14 transmits a shooting instruction signal to the camera 3 (step S24).
　カメラ３は、撮影指示信号を受信すると（ステップＳ３１）、ワイヤーロープＷを撮影する（ステップＳ３２）。カメラ３は、ワイヤーロープＷの撮影画像を示す画像情報を生成し、ロープ径計測装置１に送信する（ステップＳ３３）。電源がＯＦＦにならない場合（ステップＳ３４；ＮＯ）、カメラ３は、ステップＳ３１～ステップＳ３４を繰り返す。電源がＯＦＦになると（ステップＳ３４；ＹＥＳ）、カメラ３は、処理を終了する。 When the camera 3 receives the photographing instruction signal (step S31), the camera 3 photographs the wire rope W (step S32). The camera 3 produces | generates the image information which shows the picked-up image of the wire rope W, and transmits to the rope diameter measuring apparatus 1 (step S33). If the power is not turned off (step S34; NO), the camera 3 repeats steps S31 to S34. When the power is turned off (step S34; YES), the camera 3 ends the process.
　ロープ径計測装置１の画像情報取得部１５は、カメラ３から画像情報を受信する（ステップＳ２５）。画像情報取得部１５は、受信した画像情報を記憶部１２に記憶する。 The image information acquisition unit 15 of the rope diameter measuring device 1 receives image information from the camera 3 (step S25). The image information acquisition unit 15 stores the received image information in the storage unit 12.
　ロープ径計算部１６は、記憶部１２が記憶する画像情報が示すワイヤーロープＷの撮影画像を解析し、ロープ径を算出する（ステップＳ２６）。ロープ径計算部１６は、算出したロープ径を示すロープ径情報を出力部１７に送る。 The rope diameter calculation unit 16 analyzes the captured image of the wire rope W indicated by the image information stored in the storage unit 12, and calculates the rope diameter (step S26). The rope diameter calculation unit 16 sends rope diameter information indicating the calculated rope diameter to the output unit 17.
　出力部１７は、ロープ径計算部１６から受信したロープ径情報を出力する（ステップＳ２７）。電源がＯＦＦにならない場合（ステップＳ２８；ＮＯ）、ロープ径計測装置１は、ステップＳ２３～ステップＳ２８を繰り返す。電源がＯＦＦになると（ステップＳ２８；ＹＥＳ）、ロープ径計測装置１は、処理を終了する。 The output unit 17 outputs the rope diameter information received from the rope diameter calculation unit 16 (step S27). When the power is not turned off (step S28; NO), the rope diameter measuring apparatus 1 repeats steps S23 to S28. When the power is turned off (step S28; YES), the rope diameter measuring device 1 ends the process.
　以上説明したように実施の形態１のロープ径計測システム１００によれば、滑車２１１の動作に合わせてカメラ３の撮影タイミングを決定し、カメラ３が撮影した画像からワイヤーロープＷのロープ径を計算することで、滑車２１１が断続的に計測領域に現れ、滑車２１１の動きに合わせてワイヤーロープＷの位置が変動するワイヤーロープ加速劣化装置２に設置されたワイヤーロープＷのロープ径を自動で計測できる。 As described above, according to the rope diameter measuring system 100 of the first embodiment, the photographing timing of the camera 3 is determined in accordance with the operation of the pulley 211, and the rope diameter of the wire rope W is calculated from the image photographed by the camera 3. As a result, the pulley 211 appears intermittently in the measurement area, and the rope diameter of the wire rope W installed in the wire rope acceleration degradation device 2 in which the position of the wire rope W changes according to the movement of the pulley 211 is automatically measured. it can.
（実施の形態２）
　実施の形態２では、実施の形態１の構成に加え、ロープ径計測装置１がロープ径情報に基づいて、カメラ３の撮影頻度を変更する。実施の形態２のロープ径計測システムは、実施の形態１のロープ径計測システム１００と同様の構成である。 (Embodiment 2)
In the second embodiment, in addition to the configuration of the first embodiment, the rope diameter measuring device 1 changes the imaging frequency of the camera 3 based on the rope diameter information. The rope diameter measurement system of the second embodiment has the same configuration as the rope diameter measurement system 100 of the first embodiment.
　図５は、本発明の実施の形態２に係るロープ径計測装置の機能構成例を示すブロック図である。実施の形態１と同様に、実施の形態２のロープ径計測装置１は、動作情報取得部１１と、記憶部１２と、タイミング決定部１３と、カメラ制御部１４と、画像情報取得部１５と、ロープ径計算部１６と、出力部１７とを備える。 FIG. 5 is a block diagram showing a functional configuration example of the rope diameter measuring apparatus according to the second embodiment of the present invention. Similar to the first embodiment, the rope diameter measuring device 1 of the second embodiment includes an operation information acquisition unit 11, a storage unit 12, a timing determination unit 13, a camera control unit 14, and an image information acquisition unit 15. The rope diameter calculation unit 16 and the output unit 17 are provided.
　ロープ径計算部１６は、算出したロープ径を示すロープ径情報を記憶部１２に記憶する。 The rope diameter calculation unit 16 stores rope diameter information indicating the calculated rope diameter in the storage unit 12.
　タイミング決定部１３は、記憶部１２が記憶するロープ径情報に基づいて、カメラ３の撮影頻度を変更するか否かを判定する。撮影頻度を変更すると判定した場合、タイミング決定部１３は、あらかじめ定められた計算式を用いて、カメラ３の撮影頻度を算出する。 The timing determination unit 13 determines whether to change the imaging frequency of the camera 3 based on the rope diameter information stored in the storage unit 12. When it is determined that the shooting frequency is to be changed, the timing determination unit 13 calculates the shooting frequency of the camera 3 using a predetermined calculation formula.
　ここで、カメラ３の撮影頻度を算出する計算式について説明する。 Here, a calculation formula for calculating the photographing frequency of the camera 3 will be described.
　図６は、実施の形態２に係るカメラの撮影頻度の一例を示す図である。タイミング決定部１３は、記憶部１２が記憶するロープ径情報に基づいて、前回と今回とのロープ径の差分である変化量を計算する。 FIG. 6 is a diagram illustrating an example of the shooting frequency of the camera according to the second embodiment. Based on the rope diameter information stored in the storage unit 12, the timing determination unit 13 calculates a change amount that is a difference between the previous and current rope diameters.
　図６の「屈曲回数」は、前回の撮影タイミングから今回の撮影タイミングまでのワイヤーロープＷの屈曲回数を示す。「ロープ径」は、今回撮影された画像から算出されたワイヤーロープＷのロープ径を示す。「変化量」は、前回と今回とのロープ径の差分である変化量を示す。「追加回数算出式」は、タイミング決定部１３がカメラ３の撮影頻度を決定するための計算式を示す。「追加回数」は、単位時間あたりに追加する撮影回数を示す。「次回屈曲回数」は、次回の撮影タイミングまでのワイヤーロープＷの屈曲回数を示す。 “The number of bends” in FIG. 6 indicates the number of times the wire rope W is bent from the previous shooting timing to the current shooting timing. “Rope diameter” indicates the rope diameter of the wire rope W calculated from the image taken this time. “Change amount” indicates a change amount which is a difference in rope diameter between the previous time and the current time. The “addition count calculation formula” indicates a calculation formula for the timing determination unit 13 to determine the imaging frequency of the camera 3. “Number of additions” indicates the number of times of photographing to be added per unit time. “Next bending number” indicates the number of times the wire rope W is bent until the next photographing timing.
　まず、タイミング決定部１３は、算出した変化量が閾値α以下であるか否かを判定する。図６の例では、閾値αを０．００５とする。屈曲回数が３０００回までは、変化量が０．００５を超えない。変化量が閾値αを超えない場合は、追加回数は０である。 First, the timing determination unit 13 determines whether or not the calculated change amount is equal to or less than the threshold value α. In the example of FIG. 6, the threshold value α is set to 0.005. The amount of change does not exceed 0.005 until the number of flexing is 3000 times. When the change amount does not exceed the threshold value α, the number of additions is zero.
　屈曲回数が４０００回になったときに、変化量は０．０１０となり、閾値αを超える。タイミング決定部１３は、変化量が閾値αを超える場合は、変化量／閾値α－１＝追加回数の追加回数算出式を用いて撮影頻度を決定する。変化量が０．０１０なので、タイミング決定部１３は、０．０１０／０．００５－１＝１を算出し、単位時間あたりの撮影回数を１回追加する。 When the number of flexing times reaches 4000, the amount of change is 0.010, exceeding the threshold value α. When the change amount exceeds the threshold value α, the timing determination unit 13 determines the imaging frequency using the addition number calculation formula of change amount / threshold value α−1 = addition count. Since the amount of change is 0.010, the timing determination unit 13 calculates 0.010 / 0.005-1 = 1 and adds the number of times of photographing per unit time.
　したがって、屈曲回数４０００回までは、屈曲回数１０００回ごとにワイヤーロープＷを撮影していたが、屈曲回数４０００回以降は、単位時間あたりの撮影回数が１回追加されるので、屈曲回数５００回ごとにワイヤーロープＷを撮影する。 Therefore, the wire rope W was photographed every 1,000 times of bending until the number of times of bending is 4000. However, since the number of times of photographing per unit time is added after 4000 times of bending, the number of times of bending is 500 times. Photograph the wire rope W every time.
　また、屈曲回数が５０００回になったときに、変化量が０．０１２なので、タイミング決定部１３は、０．０１２／０．００５－１＝１．４を算出し、単位時間あたりの撮影回数を２回追加する。図６の追加回数算出式では、小数点以下を切り上げて追加回数を決定する。つまり、タイミング決定部１３は、変化量を閾値α以下にするために必要な撮影回数を追加する。 Further, since the amount of change is 0.012 when the number of times of bending reaches 5000, the timing determination unit 13 calculates 0.012 / 0.005-1 = 1.4, and the number of times of photographing per unit time Is added twice. In the addition number calculation formula of FIG. 6, the number of additions is determined by rounding up after the decimal point. That is, the timing determination unit 13 adds the number of times of photographing necessary to make the change amount equal to or less than the threshold value α.
　タイミング決定部１３は、変更した撮影頻度で撮影タイミングが来たらカメラ制御部１４に通知する。その他の機能構成は、実施の形態１と同様である。 The timing determination unit 13 notifies the camera control unit 14 when the shooting timing comes with the changed shooting frequency. Other functional configurations are the same as those in the first embodiment.
　図７Ａは、実施の形態２に係るワイヤーロープのロープ径の推移を示す図である。図７Ｂは、実施の形態２に係るワイヤーロープのロープ径の変化量の推移を示す図である。図７Ａおよび図７Ｂに示すように、一般的にワイヤーロープは、屈曲動作の始め（ポイントＰ１）とロープ破断前（ポイントＰ２）にロープ径の変化量が大きくなることが知られている。 FIG. 7A is a diagram showing a transition of the rope diameter of the wire rope according to the second embodiment. FIG. 7B is a diagram showing a transition of the amount of change in the rope diameter of the wire rope according to Embodiment 2. As shown in FIGS. 7A and 7B, it is generally known that the wire rope has a large amount of change in the rope diameter at the beginning of the bending operation (point P1) and before the rope breakage (point P2).
　ポイントＰ１の終わり、ポイントＰ２の始まりは、ワイヤーロープＷに使用される材質、構造などによってさまざまであるので、事前に変化点を知ることはできない。そこで、変化量が閾値αを超えた場合に撮影頻度を上げることで、変化量の大きくなるポイントＰ１やポイントＰ２におけるワイヤーロープＷのロープ径をより細かく記録することができる。 The end of the point P1 and the start of the point P2 vary depending on the material and structure used for the wire rope W, so the changing point cannot be known in advance. Therefore, by increasing the shooting frequency when the change amount exceeds the threshold value α, the rope diameter of the wire rope W at the point P1 and the point P2 where the change amount becomes large can be recorded more finely.
　図８は、実施の形態２に係るロープ径計測処理の動作の一例を示すフローチャートである。ワイヤーロープ加速劣化装置２のステップＳ４１～ステップＳ４３は、図４に示すフローチャートにおけるワイヤーロープ加速劣化装置２のステップＳ１１～ステップＳ１３と同様である。ロープ径計測装置１のステップＳ５１～ステップＳ５７は、図４に示すフローチャートにおけるロープ径計測装置１のステップＳ２１～ステップＳ２７と同様である。カメラ３のステップ６１～ステップＳ６４は、図４に示すフローチャートにおけるカメラ３のステップＳ３１～ステップＳ３４と同様である。　 FIG. 8 is a flowchart showing an example of the operation of the rope diameter measurement process according to the second embodiment. Steps S41 to S43 of the wire rope acceleration deterioration device 2 are the same as steps S11 to S13 of the wire rope acceleration deterioration device 2 in the flowchart shown in FIG. Steps S51 to S57 of the rope diameter measuring device 1 are the same as steps S21 to S27 of the rope diameter measuring device 1 in the flowchart shown in FIG. Steps 61 to S64 of the camera 3 are the same as steps S31 to S34 of the camera 3 in the flowchart shown in FIG. *
　ロープ径計測装置１のロープ径計算部１６は、算出したロープ径を示すロープ径情報をタイミング決定部１３に送る。タイミング決定部１３は、ロープ径計算部１６から受信したロープ径情報に基づいて、ワイヤーロープＷのロープ径の変化量が閾値α以下であるか否かを判定する（ステップＳ５８）。 The rope diameter calculation unit 16 of the rope diameter measuring device 1 sends rope diameter information indicating the calculated rope diameter to the timing determination unit 13. The timing determination unit 13 determines whether or not the change amount of the rope diameter of the wire rope W is equal to or less than the threshold value α based on the rope diameter information received from the rope diameter calculation unit 16 (step S58).
　変化量が閾値α以下である場合（ステップＳ５８；ＹＥＳ）、処理はステップＳ６０に移行する。変化量が閾値αより大きい場合（ステップＳ５８；ＮＯ）、タイミング決定部１３は、あらかじめ定められた計算式を用いて、カメラ３の撮影頻度を変更する（ステップＳ５９）。 If the change amount is equal to or less than the threshold value α (step S58; YES), the process proceeds to step S60. When the amount of change is larger than the threshold value α (step S58; NO), the timing determination unit 13 changes the imaging frequency of the camera 3 using a predetermined calculation formula (step S59).
　電源がＯＦＦにならない場合（ステップＳ６０；ＮＯ）、ロープ径計測装置１は、ステップＳ５３～ステップＳ６０を繰り返す。電源がＯＦＦになると（ステップＳ６０；ＹＥＳ）、ロープ径計測装置１は、処理を終了する。 When the power is not turned off (step S60; NO), the rope diameter measuring device 1 repeats steps S53 to S60. When the power is turned off (step S60; YES), the rope diameter measuring device 1 ends the process.
　以上説明したように実施の形態２のロープ径計測システムによれば、変化量が閾値を超えた場合に撮影頻度を上げることで、変化量の大きくなるポイントにおけるワイヤーロープＷのロープ径をより細かく記録することができる。また、常に高い撮影頻度でワイヤーロープＷを撮影する場合よりも、データ量の増加を抑えることができる。 As described above, according to the rope diameter measurement system of the second embodiment, the rope diameter of the wire rope W at the point where the amount of change becomes larger can be made finer by increasing the imaging frequency when the amount of change exceeds the threshold value. Can be recorded. In addition, an increase in the amount of data can be suppressed as compared with the case where the wire rope W is always photographed at a high photographing frequency.
　上記の実施の形態２では、ロープ径計測装置１のタイミング決定部１３は、変化量が閾値αより大きい場合に、単位時間あたりの撮影回数を追加する。これに加え、変化量が閾値β（例えば、α／２）より小さい場合に、単位時間あたりの撮影回数を減少する構成にしてもよい。 In the second embodiment, the timing determination unit 13 of the rope diameter measuring device 1 adds the number of times of photographing per unit time when the change amount is larger than the threshold value α. In addition, when the amount of change is smaller than a threshold value β (for example, α / 2), the number of photographings per unit time may be reduced.
（実施の形態３）
　実施の形態３では、実施の形態２の構成に加え、カメラ３を移動可能に備える。 (Embodiment 3)
In the third embodiment, in addition to the configuration of the second embodiment, the camera 3 is movably provided.
　図９は、本発明の実施の形態３に係るロープ径計測システムの構成例を示す図である。実施の形態３のロープ径計測システム３００は、ロープ径計測装置１と、ワイヤーロープ加速劣化装置２と、移動可能なカメラ３とで構成される。 FIG. 9 is a diagram illustrating a configuration example of a rope diameter measuring system according to the third embodiment of the present invention. A rope diameter measurement system 300 according to the third embodiment includes a rope diameter measurement device 1, a wire rope acceleration degradation device 2, and a movable camera 3.
　図９の例では、カメラ３は、位置Ａ～位置Ｄの４カ所に移動可能である。カメラ３の移動は、例えば、ワイヤーロープ加速劣化装置２の回転盤２１の外周に平行に設けられたレールの上を移動する台車にカメラ３を取り付け、レールに沿ってリミットスイッチまたはエンコーダを設けて、決められた位置で台車が停止するように構成する。カメラ３の移動可能な位置は、４カ所に限らず、ワイヤーロープＷを撮影できる位置であればどの位置でもよい。 In the example of FIG. 9, the camera 3 can be moved to four positions A to D. For the movement of the camera 3, for example, the camera 3 is attached to a carriage that moves on a rail provided in parallel to the outer periphery of the turntable 21 of the wire rope acceleration degradation device 2, and a limit switch or an encoder is provided along the rail. The carriage is configured to stop at a predetermined position. The position where the camera 3 can move is not limited to four positions, and any position where the wire rope W can be photographed may be used.
　実施の形態２と同様に、実施の形態３のロープ径計測装置１は、動作情報取得部１１と、記憶部１２と、タイミング決定部１３と、カメラ制御部１４と、画像情報取得部１５と、ロープ径計算部１６と、出力部１７とを備える。 Similar to the second embodiment, the rope diameter measuring apparatus 1 according to the third embodiment includes an operation information acquisition unit 11, a storage unit 12, a timing determination unit 13, a camera control unit 14, and an image information acquisition unit 15. The rope diameter calculation unit 16 and the output unit 17 are provided.
　タイミング決定部１３は、記憶部１２が記憶するロープ径情報に基づいて、撮影頻度を変更すると判定した場合、カメラ３の撮影頻度を算出すると同時に、カメラ３の撮影位置を決定する。 When the timing determination unit 13 determines to change the shooting frequency based on the rope diameter information stored in the storage unit 12, the timing determination unit 13 calculates the shooting frequency of the camera 3 and simultaneously determines the shooting position of the camera 3.
　例えば、初期設定として、カメラ３の位置を位置Ｄとし、単位時間あたりの撮影回数を１回とすると、タイミング決定部１３は、単位時間あたりの撮影回数を１回追加する場合、カメラ３の撮影位置を位置Ｄと位置Ｃに決定する。タイミング決定部１３は、単位時間あたりの撮影回数を２回追加する場合、カメラ３の撮影位置を位置Ｄと位置Ｃと位置Ｂに決定する。タイミング決定部１３は、単位時間あたりの撮影回数を３回追加する場合、カメラ３の撮影位置を位置Ｄと位置Ｃと位置Ｂと位置Ａに決定する。 For example, assuming that the position of the camera 3 is the position D and the number of times of photographing per unit time is one as an initial setting, the timing determination unit 13 takes the number of times of photographing of the camera 3 when adding the number of times of photographing per unit time. The positions are determined as position D and position C. The timing determination unit 13 determines the shooting position of the camera 3 as a position D, a position C, and a position B when adding the number of shootings per unit time twice. The timing determination unit 13 determines the shooting position of the camera 3 as a position D, a position C, a position B, and a position A when adding the number of shootings per unit time three times.
　カメラ３の初期設定の位置は位置Ｄでなくてもよいし、撮影回数を追加するごとに増やすカメラ３の撮影位置は、位置Ｄ、位置Ｃ、位置Ｂ、位置Ａの順でなくてもよく、任意の順番でよい。タイミング決定部１３は、決定したカメラ３の撮影位置を示す撮影条件情報を生成する。タイミング決定部１３は、撮影タイミングが来たらカメラ制御部１４に通知し、撮影条件情報を送る。 The initial setting position of the camera 3 may not be the position D, and the shooting positions of the camera 3 that are increased every time the number of shootings is added may not be the order of the position D, the position C, the position B, and the position A. , In any order. The timing determination unit 13 generates shooting condition information indicating the determined shooting position of the camera 3. The timing determination unit 13 notifies the camera control unit 14 when the shooting timing comes and sends shooting condition information.
　カメラ制御部１４は、タイミング決定部１３から撮影タイミングを通知され、撮影条件情報を受け取ると、撮影条件情報と共に撮影指示信号をカメラ３に送信する。 When the camera control unit 14 is notified of the shooting timing from the timing determination unit 13 and receives the shooting condition information, the camera control unit 14 transmits a shooting instruction signal to the camera 3 together with the shooting condition information.
　カメラ３は、撮影指示信号を受信したタイミングで、ワイヤーロープＷを撮影する。このとき、カメラ３は、撮影指示信号と共に受信した撮影条件情報が示す撮影位置でワイヤーロープＷを撮影する。カメラ３は、撮影条件情報が示す撮影位置が現在位置と異なる場合には移動する。タイミング決定部１３は、カメラ３の移動時間を考慮して、撮影タイミングを変更してもよい。その他の機能構成は、実施の形態２と同様である。 The camera 3 shoots the wire rope W at the timing of receiving the shooting instruction signal. At this time, the camera 3 photographs the wire rope W at the photographing position indicated by the photographing condition information received together with the photographing instruction signal. The camera 3 moves when the shooting position indicated by the shooting condition information is different from the current position. The timing determination unit 13 may change the shooting timing in consideration of the moving time of the camera 3. Other functional configurations are the same as those in the second embodiment.
　図１０は、実施の形態３に係るロープ径計測処理の動作の一例を示すフローチャートである。ワイヤーロープ加速劣化装置２のステップＳ７１～ステップＳ７３は、図８に示すフローチャートにおけるワイヤーロープ加速劣化装置２のステップＳ４１～ステップＳ４３と同様である。ロープ径計測装置１のステップＳ８１、ステップＳ８２、ステップＳ８５～ステップＳ８９は、図８に示すフローチャートにおけるロープ径計測装置１のステップＳ５１、ステップＳ５２、ステップＳ５５～ステップＳ５９と同様である。 FIG. 10 is a flowchart showing an example of the operation of the rope diameter measurement process according to the third embodiment. Steps S71 to S73 of the wire rope accelerated deterioration device 2 are the same as steps S41 to S43 of the wire rope accelerated deterioration device 2 in the flowchart shown in FIG. Steps S81, S82, and S85 to S89 of the rope diameter measuring device 1 are the same as Steps S51, S52, and S55 to S59 of the rope diameter measuring device 1 in the flowchart shown in FIG.
　ロープ径計測装置１のタイミング決定部１３は、カメラ３の撮影頻度を変更すると（ステップＳ８９）、カメラ３の撮影位置を決定する。タイミング決定部１３は、決定したカメラ３の撮影位置を示す撮影条件情報を生成する（ステップＳ９０）。 The timing determination unit 13 of the rope diameter measuring device 1 changes the shooting frequency of the camera 3 (step S89), and determines the shooting position of the camera 3. The timing determination unit 13 generates shooting condition information indicating the determined shooting position of the camera 3 (step S90).
　電源がＯＦＦにならない場合（ステップＳ９１；ＮＯ）、ロープ径計測装置１の処理はステップＳ８３に戻る。変更した撮影頻度の撮影タイミングが来ると（ステップＳ８３；ＹＥＳ）、タイミング決定部１３は、カメラ制御部１４に通知し、撮影条件情報を送る。 When the power is not turned off (step S91; NO), the process of the rope diameter measuring device 1 returns to step S83. When the shooting timing of the changed shooting frequency comes (step S83; YES), the timing determination unit 13 notifies the camera control unit 14 and sends shooting condition information.
　カメラ制御部１４は、タイミング決定部１３から撮影タイミングを通知され、撮影条件情報を受け取ると、撮影条件情報と共に撮影指示信号をカメラ３に送信する（ステップＳ８４）。 When the camera control unit 14 is notified of the shooting timing from the timing determination unit 13 and receives the shooting condition information, the camera control unit 14 transmits a shooting instruction signal to the camera 3 together with the shooting condition information (step S84).
　カメラ３は、撮影条件情報と共に撮影指示信号を受信すると（ステップＳ１０１）、撮影指示信号と共に受信した撮影条件情報が示す撮影位置でワイヤーロープＷを撮影する（ステップＳ１０２）。カメラ３は、ワイヤーロープＷの撮影画像を示す画像情報を生成し、ロープ径計測装置１に送信する（ステップＳ１０３）。電源がＯＦＦにならない場合（ステップＳ１０４；ＮＯ）、カメラ３は、ステップＳ１０１～ステップＳ１０４を繰り返す。電源がＯＦＦになると（ステップＳ１０４；ＹＥＳ）、カメラ３は、処理を終了する。 When the camera 3 receives the shooting instruction signal together with the shooting condition information (step S101), the camera 3 takes a picture of the wire rope W at the shooting position indicated by the shooting condition information received together with the shooting instruction signal (step S102). The camera 3 produces | generates the image information which shows the picked-up image of the wire rope W, and transmits to the rope diameter measuring apparatus 1 (step S103). If the power is not turned off (step S104; NO), the camera 3 repeats steps S101 to S104. When the power is turned off (step S104; YES), the camera 3 ends the process.
　電源がＯＦＦになると（ステップＳ９１；ＹＥＳ）、ロープ径計測装置１は、処理を終了する。 When the power is turned off (step S91; YES), the rope diameter measuring device 1 ends the process.
　以上説明したように実施の形態３のロープ径計測システム３００によれば、変化量が閾値を超えた場合に、撮影頻度を上げ、複数箇所でワイヤーロープＷを撮影することで、より広範囲にワイヤーロープＷの変化を記録することができる。また、１つのカメラ３を用いて複数箇所で撮影するので、コストの増加を抑えることができる。広範囲に撮影することで、ワイヤーロープＷの破断箇所の変化を記録できる可能性が高くなる。 As described above, according to the rope diameter measurement system 300 of the third embodiment, when the amount of change exceeds the threshold, the imaging frequency is increased and the wire rope W is imaged at a plurality of locations, so that a wider range of wires can be obtained. Changes in the rope W can be recorded. In addition, since one camera 3 is used for photographing at a plurality of locations, an increase in cost can be suppressed. By photographing a wide range, the possibility that the change of the broken portion of the wire rope W can be recorded is increased.
　上記の実施の形態３では、ロープ径計測装置１のタイミング決定部１３は、カメラ３の撮影頻度を決定すると同時に、カメラ３の撮影位置を決定する。これに限らず、その他の撮影条件を変更してもよい。例えば、カメラ３はズーム機能を備え、単位時間あたりの撮影回数の増加に伴いワイヤーロープＷを拡大して撮影することとしてもよい。この場合、撮影条件情報はカメラ３の拡大倍率などを示す。 In the third embodiment, the timing determination unit 13 of the rope diameter measuring device 1 determines the shooting frequency of the camera 3 and at the same time determines the shooting position of the camera 3. Not only this but other imaging conditions may be changed. For example, the camera 3 may be provided with a zoom function, and the wire rope W may be enlarged and photographed as the number of photographings per unit time increases. In this case, the shooting condition information indicates the magnification of the camera 3 and the like.
　これにより、変化量の大きくなるポイントにおけるワイヤーロープＷの拡大画像を記録することができ、変化の様子をより詳細に把握することができる。 Thereby, an enlarged image of the wire rope W at a point where the amount of change becomes large can be recorded, and the state of change can be grasped in more detail.
　上記の実施の形態３では、ロープ径計測装置１のタイミング決定部１３は、ロープ径計算部１６から受信したロープ径情報が示すロープ径の変化量が閾値を超えた場合、カメラ３の撮影頻度を変更すると同時に、カメラ３の撮影条件を変更する。これに限らず、タイミング決定部１３は、ロープ径の変化量が閾値を超えた場合、カメラ３の撮影条件のみを変更してもよい。 In the third embodiment, the timing determination unit 13 of the rope diameter measuring device 1 captures the imaging frequency of the camera 3 when the amount of change in the rope diameter indicated by the rope diameter information received from the rope diameter calculation unit 16 exceeds the threshold value. At the same time, the shooting conditions of the camera 3 are changed. Not only this but the timing determination part 13 may change only the imaging conditions of the camera 3, when the variation | change_quantity of a rope diameter exceeds a threshold value.
　図１１は、本発明の実施の形態に係るロープ径計測装置のハードウェア構成の一例を示すブロック図である。ロープ径計測装置１は、図１１に示すように、制御部３１、主記憶部３２、外部記憶部３３、操作部３４、表示部３５、入出力部３６および送受信部３７を備える。主記憶部３２、外部記憶部３３、操作部３４、表示部３５および送受信部３７はいずれも内部バス３０を介して制御部３１に接続されている。 FIG. 11 is a block diagram showing an example of a hardware configuration of the rope diameter measuring apparatus according to the embodiment of the present invention. As shown in FIG. 11, the rope diameter measuring device 1 includes a control unit 31, a main storage unit 32, an external storage unit 33, an operation unit 34, a display unit 35, an input / output unit 36, and a transmission / reception unit 37. The main storage unit 32, the external storage unit 33, the operation unit 34, the display unit 35, and the transmission / reception unit 37 are all connected to the control unit 31 via the internal bus 30.
　制御部３１はＣＰＵ（Central Processing Unit）等から構成され、外部記憶部３３に記憶されている制御プログラム３９に従って、ロープ径計測装置１のタイミング決定部１３、カメラ制御部１４およびロープ径計算部１６の各処理を実行する。 The control unit 31 includes a CPU (Central Processing Unit) and the like, and in accordance with a control program 39 stored in the external storage unit 33, the timing determination unit 13, the camera control unit 14, and the rope diameter calculation unit 16 of the rope diameter measuring device 1. Each process is executed.
　主記憶部３２はＲＡＭ（Random-Access Memory）等から構成され、外部記憶部３３に記憶されている制御プログラム３９をロードし、制御部３１の作業領域として用いられる。 The main storage unit 32 is constituted by a RAM (Random-Access Memory) or the like, loads a control program 39 stored in the external storage unit 33, and is used as a work area of the control unit 31.
　外部記憶部３３は、フラッシュメモリ、ハードディスク、ＤＶＤ－ＲＡＭ（Digital Versatile Disc Random-Access Memory）、ＤＶＤ－ＲＷ（Digital Versatile Disc ReWritable）等の不揮発性メモリから構成され、ロープ径計測装置１の処理を制御部３１に行わせるためのプログラムをあらかじめ記憶し、また、制御部３１の指示に従って、このプログラムが記憶するデータを制御部３１に供給し、制御部３１から供給されたデータを記憶する。記憶部１２は、外部記憶部３３に構成される。 The external storage unit 33 includes a nonvolatile memory such as a flash memory, a hard disk, a DVD-RAM (Digital Versatile Disc Random-Access Memory), a DVD-RW (Digital Versatile Disc Disc ReWritable), and performs processing of the rope diameter measuring device 1. A program to be executed by the control unit 31 is stored in advance, and data stored by the program is supplied to the control unit 31 in accordance with an instruction from the control unit 31, and the data supplied from the control unit 31 is stored. The storage unit 12 is configured in the external storage unit 33.
　操作部３４はキーボードおよびマウスなどのポインティングデバイス等と、キーボードおよびポインティングデバイス等を内部バス３０に接続するインタフェース装置から構成されている。ユーザがロープ径計測装置１に直接情報を入力する場合は、操作部３４を介して、入力された情報が制御部３１に供給される。 The operation unit 34 includes a pointing device such as a keyboard and a mouse, and an interface device that connects the keyboard and the pointing device to the internal bus 30. When the user inputs information directly to the rope diameter measuring device 1, the input information is supplied to the control unit 31 via the operation unit 34.
　表示部３５は、ＣＲＴ（Cathode Ray Tube）またはＬＣＤ（Liquid Crystal Display）などから構成され、表示部３５は出力部１７として機能する。 The display unit 35 includes a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display), and the display unit 35 functions as the output unit 17.
　入出力部３６は、シリアルインタフェースまたはパラレルインタフェースから構成されている。入出力部３６は、ワイヤーロープ加速劣化装置２およびカメラ３と接続する。入出力部３６は、動作情報取得部１１、カメラ制御部１４および画像情報取得部１５として機能する。 The input / output unit 36 includes a serial interface or a parallel interface. The input / output unit 36 is connected to the wire rope acceleration degradation device 2 and the camera 3. The input / output unit 36 functions as the operation information acquisition unit 11, the camera control unit 14, and the image information acquisition unit 15.
　送受信部３７は、ネットワークに接続する網終端装置または無線通信装置、およびそれらと接続するシリアルインタフェースまたはＬＡＮ（Local Area Network）インタフェースから構成されている。出力部１７がロープ径情報をユーザの端末に送信する構成の場合には、送受信部３７は、ネットワークを介してユーザの端末と接続し、出力部１７として機能する。また、記憶部１２に外部からアクセス可能な構成の場合には、送受信部３７は、記憶部１２に外部からアクセスするためのインタフェースとして機能する。 The transmission / reception unit 37 includes a network termination device or a wireless communication device connected to a network, and a serial interface or a LAN (Local Area Network) interface connected to them. When the output unit 17 is configured to transmit the rope diameter information to the user terminal, the transmission / reception unit 37 is connected to the user terminal via the network and functions as the output unit 17. In the case where the storage unit 12 is accessible from the outside, the transmission / reception unit 37 functions as an interface for accessing the storage unit 12 from the outside.
　図３および図５に示すロープ径計測装置１の動作情報取得部１１、記憶部１２、タイミング決定部１３、カメラ制御部１４、画像情報取得部１５、ロープ径計算部１６および出力部１７の処理は、制御プログラム３９が、制御部３１、主記憶部３２、外部記憶部３３、操作部３４、表示部３５、入出力部３６および送受信部３７などを資源として用いて処理することによって実行する。 Processing of the operation information acquisition unit 11, the storage unit 12, the timing determination unit 13, the camera control unit 14, the image information acquisition unit 15, the rope diameter calculation unit 16, and the output unit 17 of the rope diameter measuring device 1 illustrated in FIGS. Is executed by the control program 39 using the control unit 31, the main storage unit 32, the external storage unit 33, the operation unit 34, the display unit 35, the input / output unit 36, the transmission / reception unit 37, and the like as resources.
　その他、前記のハードウェア構成やフローチャートは一例であり、任意に変更および修正が可能である。 In addition, the hardware configuration and flowchart described above are merely examples, and can be arbitrarily changed and modified.
　制御部３１、主記憶部３２、外部記憶部３３、操作部３４、表示部３５、入出力部３６、送受信部３７、内部バス３０などから構成されるロープ径計測装置１の処理を行う中心となる部分は、専用のシステムによらず、通常のコンピュータシステムを用いて実現可能である。たとえば、前記の動作を実行するためのコンピュータプログラムを、コンピュータが読み取り可能な記録媒体（フレキシブルディスク、ＣＤ－ＲＯＭ、ＤＶＤ－ＲＯＭ等）に格納して配布し、当該コンピュータプログラムをコンピュータにインストールすることにより、前記の処理を実行するロープ径計測装置１を構成してもよい。また、インターネット等の通信ネットワーク上のサーバ装置が有する記憶装置に当該コンピュータプログラムを格納しておき、通常のコンピュータシステムがダウンロード等することでロープ径計測装置１を構成してもよい。 A center for processing of the rope diameter measuring device 1 including a control unit 31, a main storage unit 32, an external storage unit 33, an operation unit 34, a display unit 35, an input / output unit 36, a transmission / reception unit 37, an internal bus 30, and the like. This part can be realized by using a normal computer system without depending on a dedicated system. For example, a computer program for executing the above operation is stored and distributed on a computer-readable recording medium (flexible disk, CD-ROM, DVD-ROM, etc.), and the computer program is installed in the computer. Thus, the rope diameter measuring device 1 that executes the above-described processing may be configured. Further, the rope diameter measuring device 1 may be configured by storing the computer program in a storage device included in a server device on a communication network such as the Internet, and downloading it by a normal computer system.
　また、ロープ径計測装置１の機能を、ＯＳ（オペレーティングシステム）とアプリケーションプログラムの分担、またはＯＳとアプリケーションプログラムとの協働により実現する場合などには、アプリケーションプログラム部分のみを記録媒体や記憶装置に格納してもよい。 Further, when the function of the rope diameter measuring device 1 is realized by sharing of an OS (operating system) and an application program or by cooperation between the OS and the application program, only the application program portion is stored in a recording medium or a storage device. It may be stored.
　また、搬送波にコンピュータプログラムを重畳し、通信ネットワークを介して配信することも可能である。たとえば、通信ネットワーク上の掲示板（BBS, Bulletin Board System）に前記コンピュータプログラムを掲示し、ネットワークを介して前記コンピュータプログラムを配信してもよい。そして、このコンピュータプログラムを起動し、ＯＳの制御下で、他のアプリケーションプログラムと同様に実行することにより、前記の処理を実行できるように構成してもよい。 Also, it is possible to superimpose a computer program on a carrier wave and distribute it via a communication network. For example, the computer program may be posted on a bulletin board (BBS, Bulletin Board System) on a communication network, and the computer program may be distributed via the network. The computer program may be started and executed in the same manner as other application programs under the control of the OS, so that the above-described processing may be executed.
　図２Ｂは、変形例に係るワイヤーロープ加速劣化装置およびカメラの側面図である。図２Ｂのように、回転シャフト２３０を共有し、ワイヤーロープ加速劣化装置２を２つ以上設置するように構成する場合には、カメラ３を適切な位置に移動させることで、２つ以上のワイヤーロープ加速劣化装置２に対して、ロープ径の計測を行ってもよい。 FIG. 2B is a side view of the wire rope acceleration deterioration device and the camera according to the modification. As shown in FIG. 2B, when the rotating shaft 230 is shared and two or more wire rope acceleration degradation devices 2 are installed, two or more wires are moved by moving the camera 3 to an appropriate position. You may measure a rope diameter with respect to the rope acceleration degradation apparatus 2. FIG.
　回転シャフト２３０を共有し、異なる長さのスポーク２１２を備えた２つ以上のワイヤーロープ加速劣化装置２を設置するときは、カメラ３にズームレンズを装着して焦点距離を可変にし、焦点距離を制御することで、ロープ径の計測を行ってもよいし、焦点距離は一定にしたまま、焦点深度方向にカメラ３を移動させ、焦点の合う距離でワイヤーロープＷを撮影してロープ径の計測を行ってもよい。 When installing two or more wire rope acceleration degradation devices 2 that share a rotating shaft 230 and have spokes 212 of different lengths, the focal length is made variable by attaching a zoom lens to the camera 3. By controlling, the rope diameter may be measured, or the camera 3 is moved in the focal depth direction while keeping the focal length constant, and the wire rope W is photographed at the in-focus distance to measure the rope diameter. May be performed.
　図１２は、本発明の実施の形態に係るロープ径計測装置の撮影タイミングにおけるカメラとワイヤーロープの位置関係を示す図である。ワイヤーロープＷはカメラ３の焦点深度方向に対して、直角に位置するタイミングで撮影を行う。 FIG. 12 is a diagram showing a positional relationship between the camera and the wire rope at the photographing timing of the rope diameter measuring apparatus according to the embodiment of the present invention. The wire rope W performs imaging at a timing positioned at a right angle with respect to the focal depth direction of the camera 3.
　撮影用の照明は、ワイヤーロープＷを挟んで、カメラ３と反対側に設置して透過光を用いてもよいし、ワイヤーロープＷに対してカメラ３の側に設置して反射光を用いてもよい。 The illumination for photographing may be installed on the opposite side of the camera 3 with the wire rope W interposed therebetween, and the transmitted light may be used. Also good.
　撮影用の照明の反射光を用いて撮影することで、ワイヤーロープＷの表面を撮影可能となる。ロープ径の計測と対応する時刻に撮影された画像を確認することで、ロープ径とワイヤーロープＷの表面状態（摩耗状態、さび等）を関連付けて確認することができる。 The surface of the wire rope W can be photographed by photographing using the reflected light of the illumination for photographing. By checking the image taken at the time corresponding to the measurement of the rope diameter, it is possible to check the rope diameter and the surface state (wear state, rust, etc.) of the wire rope W in association with each other.
　本発明は、本発明の広義の精神と範囲を逸脱することなく、様々な実施の形態および変形が可能とされるものである。また、上述した実施の形態は、本発明を説明するためのものであり、本発明の範囲を限定するものではない。本発明の範囲は、実施の形態ではなく、特許請求の範囲によって示される。そして、特許請求の範囲内およびそれと同等の発明の意義の範囲内で施される様々な変形が、本発明の範囲内とみなされる。 The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. The scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.
　本出願は、２０１４年１１月４日に出願された、明細書、特許請求の範囲、図、および要約書を含む、日本国特許出願２０１４－２２４００６号に基づく優先権を主張するものである。日本国特許出願２０１４－２２４００６号の開示内容は参照により全体として本出願に含まれる。 This application claims priority based on Japanese Patent Application No. 2014-224006 filed on November 4, 2014, including the specification, claims, figures, and abstract. The disclosure of Japanese Patent Application No. 2014-224006 is hereby incorporated in its entirety by reference.
　本発明は、例えば、ワイヤーロープのロープ径を計測するロープ径計測システムに利用することができる。 The present invention can be used in, for example, a rope diameter measurement system that measures the rope diameter of a wire rope.
　１　ロープ径計測装置、２　ワイヤーロープ加速劣化装置、３　カメラ、１１　動作情報取得部、１２　記憶部、１３　タイミング決定部、１４　カメラ制御部、１５　画像情報取得部、１６　ロープ径計算部、１７　出力部、２１　回転盤、２２　制御装置、３０　内部バス、３１　制御部、３２　主記憶部、３３　外部記憶部、３４　操作部、３５　表示部、３６　入出力部、３７　送受信部、３９　制御プログラム、１００　ロープ径計測システム、２１１　滑車、２１２　スポーク、２１３　ハブ、２３０　回転シャフト、３００　ロープ径計測システム、Ｗ　ワイヤーロープ。 1 rope diameter measuring device, 2 wire rope acceleration deterioration device, 3 camera, 11 operation information acquisition unit, 12 storage unit, 13 timing determination unit, 14 camera control unit, 15 image information acquisition unit, 16 rope diameter calculation unit, 17 output Part, 21 turntable, 22 control device, 30 internal bus, 31 control part, 32 main storage part, 33 external storage part, 34 operation part, 35 display part, 36 input / output part, 37 transmission / reception part, 39 control program, 100 Rope diameter measuring system, 211 pulley, 212 spoke, 213 hub, 230 rotating shaft, 300 rope diameter measuring system, W wire rope.

Claims (6)

  1. 　一方の端に滑車が取り付けられたスポークを他方の端の回りに回転させて、前記滑車にかけられたワイヤーロープに繰り返し屈曲動作をさせ、ロープ位置が一定の周期で変動するワイヤーロープ加速劣化装置と、
    　前記ワイヤーロープを撮影するカメラと、
    　前記ワイヤーロープ加速劣化装置から前記滑車の動きを示す動作情報を受信する動作情報取得部、
    　前記動作情報に基づいて、前記カメラの焦点が前記ワイヤーロープに合うように、前記カメラの撮影タイミングを決定するタイミング決定部、
    　前記タイミング決定部が決定した撮影タイミングで撮影指示信号を前記カメラに送信するカメラ制御部、
    　前記カメラから前記ワイヤーロープの撮影画像を示す画像情報を受信する画像情報取得部、および、
    　前記画像情報が示す撮影画像を解析して前記ワイヤーロープのロープ径を算出し、算出したロープ径を示すロープ径情報を生成するロープ径計算部、
    　を有するロープ径計測装置と、
    　を備え、
    　前記カメラは、前記撮影指示信号を受信すると、前記ワイヤーロープを撮影するロープ径計測システム。     A wire rope acceleration and deterioration device in which a spoke with a pulley attached to one end is rotated around the other end to repeatedly bend the wire rope hung on the pulley, and the rope position fluctuates at a constant cycle. ,
    A camera for photographing the wire rope;
    An operation information acquisition unit for receiving operation information indicating the movement of the pulley from the wire rope acceleration deterioration device;
    A timing determination unit that determines the shooting timing of the camera based on the operation information so that the camera is focused on the wire rope;
    A camera control unit that transmits a shooting instruction signal to the camera at the shooting timing determined by the timing determination unit;
    An image information acquisition unit that receives image information indicating a captured image of the wire rope from the camera; and
    A rope diameter calculation unit that analyzes a captured image indicated by the image information to calculate a rope diameter of the wire rope, and generates rope diameter information indicating the calculated rope diameter;
    A rope diameter measuring device having
    With
    When the camera receives the photographing instruction signal, the camera is a rope diameter measuring system that photographs the wire rope.
  2. 　前記タイミング決定部は、前記ロープ径情報からロープ径の変化量を算出し、前記変化量に基づいて前記カメラの撮影頻度を決定し、
    　前記カメラ制御部は、前記タイミング決定部が決定した撮影頻度で前記撮影指示信号を前記カメラに送信する請求項１に記載のロープ径計測システム。     The timing determination unit calculates a change amount of the rope diameter from the rope diameter information, determines a photographing frequency of the camera based on the change amount,
    The rope diameter measurement system according to claim 1, wherein the camera control unit transmits the shooting instruction signal to the camera at a shooting frequency determined by the timing determination unit.
  3. 　前記タイミング決定部は、前記ロープ径情報からロープ径の変化量を算出し、前記変化量に基づいて前記カメラの撮影条件を決定し、
    　前記カメラ制御部は、前記タイミング決定部が決定した撮影条件を示す撮影条件情報と共に前記撮影指示信号を前記カメラに送信し、
    　前記カメラは、前記撮影条件情報と共に前記撮影指示信号を受信すると、前記撮影条件情報が示す撮影条件で、前記ワイヤーロープを撮影する請求項１または２に記載のロープ径計測システム。     The timing determination unit calculates a change amount of the rope diameter from the rope diameter information, determines a shooting condition of the camera based on the change amount,
    The camera control unit transmits the shooting instruction signal to the camera together with shooting condition information indicating the shooting condition determined by the timing determination unit,
    3. The rope diameter measurement system according to claim 1, wherein when the camera receives the shooting instruction signal together with the shooting condition information, the camera takes a picture of the wire rope under a shooting condition indicated by the shooting condition information.
  4. 　一方の端に滑車が取り付けられたスポークを他方の端の回りに回転させて、前記滑車にかけられたワイヤーロープに繰り返し屈曲動作をさせ、ロープ位置が一定の周期で変動するワイヤーロープ加速劣化装置および前記ワイヤーロープを撮影するカメラと接続されるロープ径計測装置であって、
    　前記ワイヤーロープ加速劣化装置から前記滑車の動きを示す動作情報を受信する動作情報取得部と、
    　前記動作情報に基づいて、前記カメラの焦点が前記ワイヤーロープに合うように、前記カメラの撮影タイミングを決定するタイミング決定部と、
    　前記タイミング決定部が決定した撮影タイミングで撮影指示信号を前記カメラに送信するカメラ制御部と、
    　前記カメラから前記ワイヤーロープの撮影画像を示す画像情報を受信する画像情報取得部と、
    　前記画像情報が示す撮影画像を解析して前記ワイヤーロープのロープ径を算出し、算出したロープ径を示すロープ径情報を生成するロープ径計算部と、
    　を備えるロープ径計測装置。     A wire rope acceleration deterioration device in which a spoke with a pulley attached to one end is rotated around the other end to repeatedly bend the wire rope hung on the pulley, and the rope position fluctuates at a constant cycle, and A rope diameter measuring device connected to a camera for photographing the wire rope,
    An operation information acquisition unit that receives operation information indicating the movement of the pulley from the wire rope acceleration deterioration device;
    A timing determining unit that determines a shooting timing of the camera based on the operation information so that the camera is focused on the wire rope;
    A camera control unit that transmits a shooting instruction signal to the camera at the shooting timing determined by the timing determination unit;
    An image information acquisition unit that receives image information indicating a captured image of the wire rope from the camera;
    Analyzing the captured image indicated by the image information to calculate the rope diameter of the wire rope, and a rope diameter calculation unit that generates rope diameter information indicating the calculated rope diameter;
    A rope diameter measuring device comprising:
  5. 　一方の端に滑車が取り付けられたスポークを他方の端の回りに回転させて、前記滑車にかけられたワイヤーロープに繰り返し屈曲動作をさせるワイヤーロープ加速劣化装置が実行する
    　前記滑車の動きを示す動作情報をロープ径計測装置に送信するステップと、
    　前記ロープ径計測装置が実行する
    　前記ワイヤーロープ加速劣化装置から、前記動作情報を受信する動作情報取得ステップと、
    　前記動作情報に基づいて、カメラの焦点が前記ワイヤーロープに合うように、前記カメラの撮影タイミングを決定するタイミング決定ステップと、
    　前記タイミング決定ステップで決定した撮影タイミングで撮影指示信号を前記カメラに送信するカメラ制御ステップと、
    　前記カメラが実行する
    　前記撮影指示信号を受信し、前記ワイヤーロープを撮影するステップと、
    　前記ワイヤーロープの撮影画像を示す画像情報を前記ロープ径計測装置に送信するステップと、
    　前記ロープ径計測装置が実行する
    　前記カメラから前記画像情報を受信する画像情報取得ステップと、
    　前記画像情報が示す撮影画像を解析して前記ワイヤーロープのロープ径を算出し、算出したロープ径を示すロープ径情報を生成するロープ径計算ステップと、
    　を備えるロープ径計測方法。     Executed by a wire rope acceleration / deterioration device that rotates a spoke with a pulley attached to one end around the other end and repeatedly bends the wire rope hung on the pulley. Operation information indicating the movement of the pulley Transmitting to the rope diameter measuring device;
    An operation information acquisition step for receiving the operation information from the wire rope acceleration degradation device executed by the rope diameter measuring device;
    A timing determination step for determining a shooting timing of the camera based on the operation information so that the camera is focused on the wire rope;
    A camera control step of transmitting a shooting instruction signal to the camera at the shooting timing determined in the timing determination step;
    Receiving the photographing instruction signal executed by the camera and photographing the wire rope;
    Transmitting image information indicating a captured image of the wire rope to the rope diameter measuring device;
    An image information obtaining step for receiving the image information from the camera, which is executed by the rope diameter measuring device;
    A rope diameter calculating step of analyzing the captured image indicated by the image information to calculate a rope diameter of the wire rope, and generating rope diameter information indicating the calculated rope diameter;
    A rope diameter measuring method comprising:
  6. 　一方の端に滑車が取り付けられたスポークを他方の端の回りに回転させて、前記滑車にかけられたワイヤーロープに繰り返し屈曲動作をさせるワイヤーロープ加速劣化装置および前記ワイヤーロープを撮影するカメラと接続されるコンピュータを、
    　前記ワイヤーロープ加速劣化装置から受信した前記滑車の動きを示す動作情報に基づいて、前記カメラの焦点が前記ワイヤーロープに合うように、前記カメラの撮影タイミングを決定するタイミング決定部、
    　前記タイミング決定部が決定した撮影タイミングで撮影指示信号を前記カメラに送信するカメラ制御部、および、
    　前記カメラから受信した画像情報が示す撮影画像を解析して前記ワイヤーロープのロープ径を算出し、算出したロープ径を示すロープ径情報を生成するロープ径計算部、
    　として機能させるプログラム。     Connected to a wire rope acceleration degradation device that rotates a spoke with a pulley attached to one end around the other end and repeatedly bends the wire rope hung on the pulley, and a camera that photographs the wire rope. Computer
    A timing determination unit that determines the shooting timing of the camera based on the operation information indicating the movement of the pulley received from the wire rope acceleration deterioration device, so that the camera is focused on the wire rope;
    A camera control unit that transmits a shooting instruction signal to the camera at the shooting timing determined by the timing determination unit; and
    Analyzing the captured image indicated by the image information received from the camera to calculate the rope diameter of the wire rope, a rope diameter calculation unit that generates rope diameter information indicating the calculated rope diameter,
    Program to function as.
PCT/JP2015/080910 2014-11-04 2015-11-02 Rope diameter measuring system, rope diameter measuring device, rope diameter measuring method, and program WO2016072381A1 (en)

Priority Applications (4)

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KR1020177012022A KR102049717B1 (en) 2014-11-04 2015-11-02 Rope diameter measuring system, rope diameter measuring device, rope diameter measuring method, and program stored in computer readable recording medium
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DE112015005003.5T DE112015005003B4 (en) 2014-11-04 2015-11-02 ROPE DIAMETER MEASURING SYSTEM; ROPE DIAMETER MEASURING DEVICE, METHOD OF MEASURING A ROPE DIAMETER AND PROGRAM
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JP6333403B2 (en) 2018-05-30
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CN107076545B (en) 2019-08-06
JPWO2016072381A1 (en) 2017-04-27

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