KR20170068506A - Rope diameter measuring system, rope diameter measuring device, rope diameter measuring method, and program - Google Patents

Abstract

The wire rope acceleration deterioration device 2 repeatedly bends the wire rope W by rotating the rotating disk 21 to transmit motion information indicating the motion of the pulley 211 to the rope diameter measuring device 1 do. The rope diameter measuring device 1 determines the photographing timing of the camera 3 based on the received operation information. The rope diameter measuring device 1 transmits to the camera 3 a photographing instruction signal for instructing photographing at the determined photographing timing. The camera 3 captures the wire rope W at the timing at which the photographing instruction signal is received and transmits the image information representing the photographing image to the rope diameter measuring device 1. [ The rope diameter measuring device 1 calculates the rope diameter of the wire rope W based on the received image information and generates rope diameter information indicating the calculated rope diameter.

Description

TECHNICAL FIELD [0001] The present invention relates to a rope diameter measuring system, a rope diameter measuring apparatus, a rope diameter measuring apparatus, a rope diameter measuring apparatus, a rope diameter measuring apparatus,

The present invention relates to a rope diameter measuring system, a rope diameter measuring apparatus, a rope diameter measuring method, and a program for measuring a rope diameter of a wire rope.

At present, in the inspection and inspection of wire rope, human is performing inspection by visual inspection or inspection using various measuring instruments. The main management items are specified in JIS, and include visual confirmation by the naked eye, photographing of the exterior, measurement of the rope diameter, and the like. Digital cameras, micrometers and tape measure are used in various measurement.

Techniques for automating these checks and inspections are being developed to increase efficiency.

Patent Document 1 discloses a technique in which a camera is fixed at a position where a rope near a car of an elevator can be photographed (a position spaced a certain distance from the rope) and a contour is extracted from a binarized image obtained by successively photographing a running rope, A wire rope inspection apparatus is disclosed.

Patent Document 2 discloses a transmitting / receiving light beam sensor provided at a predetermined position (in the vicinity of a driving pulley on which wires are wound) on a conveying path of a wire rope installed in a real machine of an elevator, And the rope diameter calculating section continuously measures the rope diameter.

Patent document 3 discloses a displacement measuring apparatus for a dam bank that is capable of detecting displacements in horizontal and vertical directions of a wire disposed at a bank of a dam and accurately detecting displacement of the dam bank. In the technique of Patent Document 3, the amount of displacement is detected from photographed image data obtained by photographing a metal ball, which is a position indicating member provided on the lower end side of the measuring wire, and the displacement of the dam bank is measured.

Patent Document 4 discloses a technique of projecting slit light on an object to be inspected, imaging a shape line sequentially formed on the object by scanning of slit light, and obtaining a sectional shape of the inspected object calculated from imaging data of each shape line sequentially Based on the result of the inspection.

(Prior art document)

(Patent Literature)

(Patent Document 1) Japanese Patent Laid-Open Publication No. 2011-132010

(Patent Document 2) JP-A-2008-214037

(Patent Document 3) Japanese Patent Laid-Open Publication No. 2012-58136

(Patent Document 4) Japanese Patent Laid-Open Publication No. 2012-37488

An apparatus for irradiating deterioration of a wire rope is a wire rope acceleration deterioration apparatus. In the wire rope acceleration deterioration device, a spoke provided with a pulley at one end is rotated around the other end, and the wire rope stuck to the pulley is repeatedly bent to change the position of the rope at a constant cycle. In the wire rope acceleration deterioration device, the above-described technique can not be applied because the pulley intermittently appears in the measurement region and the position of the wire rope fluctuates in accordance with the movement of the pulley.

Patent Document 1 is an invention directed to a rope inspection installed in an actual elevator machine. In the technique of Patent Document 1, since the rope advances in a long direction when viewed from a camera, the distance between the camera and the rope is always constant. In this technique, when the distance between the rope and the camera changes, or when an object other than the rope is likely to be photographed, the rope diameter can not be accurately measured.

Patent Document 2 is an invention directed to a rope inspection installed in an actual elevator machine. In the technique of Patent Document 2, when there is a possibility that an object other than the rope passes through the penetrating light beam sensor, the rope diameter can not be accurately measured.

The techniques of Patent Documents 3 and 4 are not techniques for measuring the rope diameter of a wire rope.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances as described above, and it is an object of the present invention to provide a wire rope acceleration deterioration device in which the pulley intermittently appears in a measurement region, So that it can be measured.

In order to achieve the above object, a rope diameter measuring system according to a first aspect of the present invention comprises a wire rope acceleration deterioration device, a camera, and a rope diameter measuring device. In the wire rope acceleration deterioration device, the spoke in which the pulley is installed at one end is rotated around the other end, and the wire rope stuck to the pulley is repeatedly bent to change the position of the rope 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 operation information acquisition unit receives operation information indicating the motion of the pulley from the wire rope acceleration deterioration device. The timing determining section determines the photographing timing of the camera so that the focus of the camera matches the wire rope, based on the operation information. The camera control unit transmits a photographing instruction signal to the camera at the photographing timing determined by the timing determining unit. The image information acquiring section receives image information representing a photographed image of a wire rope from a camera. The rope diameter calculation section analyzes the shot image represented by the image information to calculate the rope diameter of the wire rope and generates the rope diameter information indicating the calculated rope diameter. When the camera receives the photographing instruction signal, the camera photographs the wire rope.

According to the present invention, the photographing 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 taken by the camera, so that the pulley intermittently appears in the measurement region, It is possible to automatically measure the rope diameter of the wire rope provided in the wire rope acceleration deterioration device whose position varies.

Fig. 1 is a view showing a configuration example of a rope diameter measuring system according to Embodiment 1 of the present invention. Fig.
2A is a side view of a wire rope acceleration deterioration device and a camera according to Embodiment 1. Fig.
2B is a side view of the wire rope acceleration deterioration device and the camera according to the modification.
3 is a block diagram showing a functional configuration example of the rope diameter measuring apparatus according to the first embodiment.
4 is a flowchart showing an example of the operation of the rope diameter measuring process according to the first embodiment.
5 is a block diagram showing a functional configuration example of a rope diameter measuring apparatus according to Embodiment 2 of the present invention.
6 is a diagram showing an example of the photographing frequency of the camera according to the second embodiment.
Fig. 7A is a view showing a change in the rope diameter of the wire rope according to the second embodiment. Fig.
Fig. 7B is a diagram showing a change in the amount of change in the rope diameter of the wire rope according to the second embodiment. Fig.
8 is a flowchart showing an example of the operation of the rope diameter measuring process according to the second embodiment.
9 is a diagram showing a configuration example of a rope diameter measuring system according to a third embodiment of the present invention.
10 is a flowchart showing an example of the operation of the rope diameter measuring process according to the third embodiment.
11 is a block diagram showing an example of a hardware configuration of a rope diameter measuring apparatus according to an embodiment of the present invention.
12 is a view showing the 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.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent parts are denoted by the same reference numerals.

(Embodiment Mode 1)

Fig. 1 is a view showing a configuration example of a rope diameter measuring system according to Embodiment 1 of the present invention. Fig. The rope diameter measuring system 100 is composed of a rope diameter measuring device 1, a wire rope acceleration deterioration device 2 and a camera 3. The rope diameter measuring device 1 is connected to the wire rope acceleration deterioration device 2 and the camera 3.

The wire rope acceleration deterioration device 2 is constituted of a rotating disk 21 and a control device 22 for controlling the rotating disk 21. [ The rotating disk 21 is constituted by a pulley 211 and a hub 213 which supports a spoke 212 provided with a pulley 211 at one end and the other end of the spoke 212.

The hub 213 is rotatably supported and the control device 22 rotates the hub 213 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 inspected for deterioration is sandwiched by a groove (not shown) around the pulley 211 and is caught by the outer periphery of the rotating disk 21, and both ends are fixed.

The wire rope W is engaged sequentially with the pulley 211 by the rotation of the rotating disk 21. [ Since the pulley 211 rotates about the spokes 212, the pulley 211 rolls without slipping over 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 touches is repeatedly bent. The number of wire ropes W wound on the pulley 211 may be one or plural. The rotational direction of the rotating disk 21 may be reverse.

Further, during the bending operation, the control device 22 keeps the tension of the wire rope W constant. The wire rope acceleration deterioration device 2 transmits operation information indicating the movement of the pulley 211, such as the number of revolutions per unit time and the rotation speed of the pulley 211, to the rope diameter measuring device 1. [

2A is a side view of a wire rope acceleration deterioration device and a camera according to Embodiment 1. Fig. The wire rope acceleration deterioration device 2 and the camera 3 are provided in the positional relationship as shown in Figs. 1 and 2A.

In Fig. 1, the state of the rotation of the rotating disk 21 is indicated by a chain double-dashed line. One point of the wire rope W reciprocates in the radial direction of the rotary disk 21 when the rotary disk 21 is rotated to bend the wire rope W. When the imaging direction of the camera 3 is set to the rotation radial direction of the rotating disk 21, the wire rope W reciprocates in the depth of focus direction, so that the focal point of the camera 3 matches the wire rope W. The rope diameter measuring device 1 is so designed that the focus of the camera 3 is photographed at the timing corresponding to the wire rope W on the basis of the operation information received from the wire rope acceleration deterioration device 2, The photographing timing is determined.

For example, if the imaging direction of the camera 3 is a direction orthogonal to the rotation plane of the rotating disk 21, the wire rope W moves in a direction transverse to the photographing area of the camera 3. [ In such a case, since it is shaken by the movement of the wire rope W, it is difficult to obtain a clear image. Therefore, as shown in Fig. 2A, the imaging direction of the camera 3 is set as the turning radial direction of the rotating disk 21. [

The rope diameter measuring device 1 transmits a photographing instruction signal to the camera 3 at the determined photographing timing.

When the camera 3 receives the photographing instruction signal, the camera 3 photographs the wire rope W. The camera 3 is set to focus on the wire rope W at a position where the pulley 211 is not included in the photographing area, for example, the position in the middle of the front and rear pulleys 211. [ The camera 3 generates image information representing a photographed image of the wire rope W and transmits it to the rope diameter measuring device 1. [

The rope-diameter measuring device 1 analyzes the photographed 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. For calculating the rope diameter, for example, an edge of the photographed image is extracted, an approximate straight line is obtained, and the width of the approximate straight line is taken as the rope diameter. The rope diameter measuring device 1 outputs rope diameter information indicating the calculated rope diameter. Alternatively, the rope diameter measuring device 1 may store the rope diameter information and make it accessible from the outside.

3 is a block diagram showing 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 diameter calculation section 16, and an output section 17.

The operation information acquiring unit 11 receives operation information from the wire rope acceleration deterioration device 2. [ The operation information acquiring unit 11 stores the received operation information in the storage unit 12.

The timing determining section 13 determines the photographing timing of the camera 3 so that the focus of the camera 3 is photographed at the timing corresponding to the wire rope W based on the operation information stored in the storage section 12. [ The timing determining section 13 waits for the arrival of the determined photographing timing, and notifies the camera control section 14 when the photographing timing comes.

When the photographing timing is notified from the timing determining section 13, the camera control section 14 transmits the photographing instruction signal to the camera 3. [

The image information acquisition section 15 receives image information from the camera 3. [ The image information acquisition section 15 stores the received image information in the storage section 12.

The rope diameter calculating section 16 analyzes the taken image of the wire rope W indicated by the image information stored in the storing section 12 and calculates the rope diameter of the wire rope W. [ The rope-diameter calculating section 16 sends the calculated rope-diameter information to the output section 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 terminal.

The rope diameter calculation section 16 may store the calculated rope diameter information in the storage section 12. In this case, the rope diameter measuring device 1 may be configured not to include the output section 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. [

4 is a flowchart showing an example of the operation of the rope diameter measuring process according to the first embodiment. The rope diameter measuring process starts when the rope diameter measuring device 1, the wire rope acceleration deteriorating device 2 and the camera 3 are started.

The control device 22 of the wire rope acceleration deterioration device 2 transmits the operation information to the rope diameter measuring device 1 (step S11) and rotates the rotating disk 21 (step S12). If the power supply 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 deterioration device 2 ends the process.

The operation information acquiring section 11 of the rope diameter measuring device 1 receives the operation information from the wire rope acceleration deterioration device 2 (step S21). The operation information acquiring unit 11 stores the received operation information in the storage unit 12.

The timing determining section 13 determines the photographing timing of the camera 3 based on the operation information stored in the storing section 12 (step S22). If the determined photographing timing has not arrived (step S23: NO), the process repeats step S23 and waits for the arrival of the photographing timing.

When the photographing timing is on (step S23; YES), the timing determining unit 13 notifies the camera control unit 14 of the timing. When the photographing timing is notified from the timing determining section 13, the camera control section 14 transmits the photographing instruction signal to the camera 3 (step S24).

When the camera 3 receives the photographing instruction signal (step S31), the camera 3 photographs the wire rope W (step S32). The camera 3 generates image information representing a photographed image of the wire rope W, and transmits it to the rope diameter measuring device 1 (step S33). When the power source is not turned OFF (step S34; NO), the camera 3 repeats steps S31 to S34. When the power source is turned off (step S34; YES), the camera 3 ends the process.

The image information obtaining section 15 of the rope diameter measuring device 1 receives the image information from the camera 3 (step S25). The image information acquisition section 15 stores the received image information in the storage section 12.

The rope diameter calculating section 16 analyzes the photographed image of the wire rope W indicated by the image information stored in the storing section 12, and calculates the rope diameter (step S26). The rope-diameter calculating section 16 sends the calculated rope-diameter information to the output section 17.

The output unit 17 outputs the rope diameter information received from the rope diameter calculation unit 16 (step S27). If the power is not turned OFF (step S28: NO), the rope diameter measuring device 1 repeats steps S23 to S28. When the power is turned off (step S28; YES), the rope diameter measuring device 1 ends the process.

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 photographing timing of the wire rope W Of the wire rope W installed in the wire rope acceleration deterioration device 2 in which the pulley 211 intermittently appears in the measurement region and the position of the wire rope W fluctuates in accordance with the movement of the pulley 211, Diameter can be measured automatically.

(Embodiment 2)

In the second embodiment, in addition to the configuration of the first embodiment, the rope diameter measuring device 1 changes the photographing frequency of the camera 3 based on the rope diameter information. The rope-diameter measuring system of the second embodiment has the same configuration as the rope-diameter measuring system 100 of the first embodiment.

5 is a block diagram showing a functional configuration example of a rope diameter measuring apparatus according to Embodiment 2 of the present invention. The rope diameter measuring device 1 according to the second embodiment includes the operation information acquiring section 11, the storage section 12, the timing determining section 13, the camera control section 14, An image information acquisition section 15, a rope diameter calculation section 16, and an output section 17. [

The rope diameter calculation section 16 stores the calculated rope diameter information indicating the calculated rope diameter in the storage section 12.

The timing determination unit 13 determines whether to change the photographing frequency of the camera 3 based on the rope diameter information stored in the storage unit 12. [ When it is determined that the photographing frequency is to be changed, the timing determining unit 13 calculates the photographing frequency of the camera 3 by using a predetermined calculation formula.

Here, a calculation formula for calculating the photographing frequency of the camera 3 will be described.

6 is a diagram showing an example of the photographing frequency of the camera according to the second embodiment. The timing determining section 13 calculates a change amount that is a difference between the previous and current rope diameters based on the rope diameter information stored in the storage section 12. [

6 represents the number of times the wire rope W is bent from the previous photographing timing to the current photographing timing. The " rope diameter " indicates the rope diameter of the wire rope W calculated from the image photographed this time. &Quot; Change amount " represents the amount of change that is the difference between the last time and the current time of the rope diameter. The " addition frequency calculation formula " shows a calculation formula for the timing determination unit 13 to determine the photographing frequency of the camera 3. [ The " additional number " indicates the number of times of shooting to be added per unit time. The " number of times of next turn bending " indicates the number of times of wire rope W bending up to the next shooting timing.

First, the timing determination unit 13 determines whether or not the calculated change amount is equal to or smaller than the threshold value alpha. In the example of FIG. 6, the threshold value? Is set to 0.005. The change amount does not exceed 0.005 until the number of bending times is 3,000 times. When the amount of change does not exceed the threshold value?, The number of additions is zero.

When the number of bending times is 4,000 times, the amount of change becomes 0.010, which exceeds the threshold value?. When the amount of change exceeds the threshold value alpha, the timing determination unit 13 determines the photographing frequency using the change amount / threshold value alpha-1 = the additional number of times of addition. Since the amount of change is 0.010, the timing determining section 13 calculates 0.010 / 0.005-1 = 1 and adds the number of times of shooting per unit time once.

Therefore, the wire rope W is photographed every 1000 times of the bending times up to the bending frequency of 4000 times. However, since the number of times per unit time is added once after the bending frequency of 4000 times, the wire rope W is photographed every 500 times of bending.

Further, when the number of bending times is 5,000 times, the amount of change is 0.012, so the timing determining unit 13 calculates 0.012 / 0.005-1 = 1.4 and adds the number of times of shooting per unit time twice. In the addition frequency calculation expression of Fig. 6, the number of additions is determined by rounding down the decimal point. In other words, the timing determining section 13 adds the number of times of photographing required to make the change amount equal to or smaller than the threshold value alpha.

The timing determining section 13 notifies the camera control section 14 when the photographing timing comes at the changed photographing frequency. The other functional configurations are the same as those of the first embodiment.

Fig. 7A is a view showing a change in the rope diameter of the wire rope according to the second embodiment. Fig. Fig. 7B is a diagram showing a change in the amount of change in the rope diameter of the wire rope according to the second embodiment. Fig. 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 break (point P2).

The end of the point P1 and the start of the point P2 vary depending on the material, structure, and the like used for the wire rope W, so that the change point can not be known in advance. Thus, by increasing the photographing frequency when the amount of change exceeds the threshold value?, The rope diameter of the wire rope W at the points P1 and P2 at which the amount of change increases can be recorded more finely.

8 is a flowchart showing an example of the operation of the rope diameter measuring 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 apparatus 1 are similar to steps S21 to S27 of the rope-diameter measuring apparatus 1 in the flow chart shown in Fig. Steps 61 to 64 of the camera 3 are similar to steps S31 to S34 of the camera 3 in the flowchart shown in Fig.

The rope-diameter calculating unit 16 of the rope-diameter measuring apparatus 1 sends the calculated rope-diameter information to the timing determining unit 13. The timing determining section 13 determines whether or not the amount of change in the rope diameter of the wire rope W is equal to or smaller than the threshold value a (step S58) based on the rope diameter information received from the rope diameter calculating section 16. [

If the change amount is equal to or less than the threshold value alpha (step S58; YES), the process proceeds to step S60. When the amount of change is larger than the threshold value alpha (step S58; No), the timing determining unit 13 changes the photographing frequency of the camera 3 using a predetermined calculation formula (step S59).

If the power source 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.

As described above, according to the rope-diameter measuring system of the second embodiment, by increasing the photographing frequency when the amount of change exceeds the threshold, the rope diameter of the wire rope W at the point where the amount of change becomes large can be recorded more finely. In addition, it is possible to suppress an increase in the amount of data, as compared with the case where the wire rope W is always photographed with a high photographing frequency.

In the second embodiment, the timing determining unit 13 of the rope diameter measuring device 1 adds the number of times of photographing per unit time when the amount of change is larger than the threshold value alpha. In addition, when the amount of change is smaller than the threshold value? (For example,? / 2), the number of times of shooting per unit time may be reduced.

(Embodiment 3)

In the third embodiment, in addition to the configuration of the second embodiment, the camera 3 is movably provided.

9 is a diagram showing a configuration example of a rope diameter measuring system according to a third embodiment of the present invention. The rope diameter measuring system 300 according to the third embodiment includes a rope diameter measuring device 1, a wire rope acceleration deterioration device 2, and a movable camera 3.

In the example of Fig. 9, the camera 3 is movable to four positions from position A to position D. The movement of the camera 3 can be carried out by mounting the camera 3 on a bogie moving on a rail provided parallel to the outer periphery of the turn plate 21 of the wire rope acceleration deterioration device 2, A switch or an encoder is provided to stop the bogie at a predetermined position. The movable position of the camera 3 is not limited to four, but may be any position as long as it can capture the wire rope W.

The rope diameter measuring device 1 according to the third embodiment includes the operation information acquiring section 11, the storage section 12, the timing determining section 13, the camera control section 14, An image information acquisition section 15, a rope diameter calculation section 16, and an output section 17. [

The timing determining unit 13 calculates the photographing frequency of the camera 3 and determines the photographing frequency of the camera 3 when the photographing frequency is determined to be changed based on the rope diameter information stored in the storing unit 12. [ And determines the photographing position.

For example, when the position of the camera 3 is set to the position D as an initial setting and the number of times of shooting per unit time is 1, the timing determining unit 13 sets the position of the camera 3 to the position of the camera 3, As the position D and the position C, respectively. When the number of times of shooting per unit time is added twice, the timing determining unit 13 determines the shooting position of the camera 3 as the position D, the position C, and the position B, respectively. When the number of times of shooting per unit time is added three times, the timing determining unit 13 determines the shooting position of the camera 3 as the position D, the position C, the position B, and the position A. [

The initial setting position of the camera 3 may not be the position D and the photographing position of the camera 3 which is increased every time the photographing number is added may not be the order of the position D, the position C, the position B, and the position A , And may be an arbitrary order. The timing determining unit 13 generates photographing condition information indicating the photographing position of the camera 3 determined. The timing determining section 13 notifies the camera control section 14 when the photographing timing comes, and sends the photographing condition information.

The camera control unit 14 is notified of the photographing timing from the timing determining unit 13 and, when receiving the photographing condition information, transmits the photographing instruction signal to the camera 3 together with the photographing condition information.

The camera 3 photographs the wire rope W at the timing when the photographing instruction signal is received. 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 photographing position indicated by the photographing condition information is different from the current position. The timing determining section 13 may change the photographing timing in consideration of the moving time of the camera 3. [ The other functional configurations are the same as those in the second embodiment.

10 is a flowchart showing an example of the operation of the rope diameter measuring process according to the third embodiment. Steps S71 to S73 of the wire rope acceleration deterioration device 2 are the same as Steps S41 to S43 of the wire rope acceleration deterioration device 2 in the flow chart shown in Fig. Steps S81, S82, and S85 to S89 of the rope-diameter measuring apparatus 1 are the same as steps S51, S52, and S55 to S59 of the rope-diameter measuring apparatus 1 in the flowchart shown in Fig. 8 to be.

The timing determining unit 13 of the rope diameter measuring apparatus 1 determines the photographing position of the camera 3 when the photographing frequency of the camera 3 is changed (step S89). The timing determining section 13 generates photographing condition information indicating the photographing position of the determined camera 3 (step S90).

If the power supply is not turned OFF (step S91: NO), the process of the rope diameter measuring device 1 returns to step S83. When the photographing timing of the changed photographing frequency comes (step S83; Yes), the timing determining section 13 notifies the camera control section 14 and sends photographing condition information.

The camera control unit 14 is notified of the photographing timing from the timing determining unit 13, and when receiving the photographing condition information, transmits the photographing instruction signal together with the photographing condition information to the camera 3 (step S84).

When the camera 3 receives the photographing instruction signal together with the photographing condition information (step S101), 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 (step S102). The camera 3 generates image information representing a photographed image of the wire rope W, and transmits it to the rope diameter measuring device 1 (step S103). If the power source is not turned OFF (step S104: NO), the camera 3 repeats steps S101 to S104. When the power source is turned off (step S104; YES), the camera 3 ends the process.

When the power is turned off (step S91; YES), the rope diameter measuring device 1 ends the process.

As described above, according to the rope-diameter measuring system 300 of the third embodiment, when the variation amount exceeds the threshold value, the photographing frequency is increased and the wire rope W is photographed at a plurality of locations, Can be recorded. Further, since the camera 3 is used for photographing at a plurality of locations, an increase in cost can be suppressed. It is possible to record a change in the rupture portion of the wire rope W by photographing in a wide range.

The timing determining section 13 of the rope diameter measuring apparatus 1 determines the photographing frequency of the camera 3 and determines the photographing position of the camera 3 in the third embodiment. The present invention is not limited to this, and other shooting 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 times of shooting per unit time increases. In this case, the photographing condition information indicates the magnification factor of the camera 3 or the like.

As a result, it is possible to record an enlarged image of the wire rope W at the point where the amount of change becomes large, and the state of the change can be grasped in more detail.

The timing determining section 13 of the rope diameter measuring device 1 determines whether or not the amount of change in the rope diameter indicated by the rope diameter information received from the rope diameter calculating section 16 exceeds the threshold value, 3) and changes the photographing condition of the camera 3, as shown in Fig. Instead of this, the timing determining section 13 may change only the photographing condition of the camera 3 when the change amount of the rope diameter exceeds the threshold value.

11 is a block diagram showing an example of a hardware configuration of a rope diameter measuring apparatus according to an embodiment of the present invention. 11, the rope diameter measuring apparatus 1 includes a control section 31, a main storage section 32, an external storage section 33, an operation section 34, a display section 35, an input / output section 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 both connected to the control unit 31 via the internal bus 30.

The control section 31 is constituted by a CPU (Central Processing Unit) or the like and controls the timing determination section 13 of the rope diameter measurement device 1, The control section 14 and the rope diameter calculation section 16 are executed.

The main storage unit 32 is constituted by a RAM (Random-Access Memory) or the like and loads the control program 39 stored in the external storage unit 33 and is used as a work area of the control unit 31. [

The external storage unit 33 is constituted by a nonvolatile memory such as a flash memory, a hard disk, a DVD-RAM (Digital Versatile Disk Random-Access Memory), or a DVD-RW (Digital Versatile Disc ReWritable) 1 to the control section 31 in accordance with the instruction from the control section 31 and supplies the data to be stored by the control section 31 to the control section 31 And stores the supplied data. 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 for connecting a keyboard, a pointing device and the like 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 section 31 via the operating section 34. [

The display section 35 is constituted by a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display), and the display section 35 functions as an output section 17. [

The input / output unit 36 is constituted by a serial interface or a parallel interface. The input / output section 36 is connected to the wire rope acceleration deterioration device 2 and the camera 3. The input / output unit 36 functions as an operation information acquisition unit 11, a camera control unit 14, and an image information acquisition unit 15.

The transceiver unit 37 is constituted by a network terminating apparatus or a wireless communication apparatus connected to a network, and a serial interface or a LAN (Local Area Network) interface connected to the network terminating apparatus or the wireless communication apparatus. In the case where the output unit 17 transmits the rope diameter information to the terminal of the user, the transmitting / receiving unit 37 connects to the terminal of the user via the network and functions as the output unit 17. [ Further, in the case of a configuration in which the storage section 12 is accessible from the outside, the transmission / reception section 37 functions as an interface for accessing the storage section 12 from the outside.

The operation information acquiring unit 11, the storage unit 12, the timing determination unit 13, the camera control unit 14, the image information acquisition unit 15, and the image information acquisition unit 15 of the rope diameter measurement apparatus 1 shown in Figs. The processing of the rope diameter calculating section 16 and the output section 17 is carried out in such a manner that the control program 39 controls the control section 31, the main storage section 32, the external storage section 33, the operation section 34, 35, the input / output unit 36, and the transmission / reception unit 37 as resources.

In addition, the above-described hardware configuration and flowchart are exemplary and can be arbitrarily changed and modified.

And is configured by 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, The central part for performing the processing of the rope diameter measuring device 1 can be realized by using a normal computer system without depending on a dedicated system. For example, by storing the computer program for executing the above operation in a computer-readable recording medium (a flexible disk, a CD-ROM, a DVD-ROM, or the like) and installing the computer program in the computer, And the rope diameter measuring device 1 for executing the processing may be constituted. In addition, the computer program may be stored in a storage device of a server device on a communication network such as the Internet, and the rope-diameter measuring device 1 may be constituted by downloading or the like by a normal computer system.

In the case where the functions of the rope diameter measuring device 1 are realized by the sharing of the OS (operating system) and the application program or by the cooperation of the OS and the application program, only the application program portion is stored in the recording medium or storage device It is good.

It is also possible to superimpose a computer program on a carrier wave and transmit it over a communication network. For example, the computer program may be posted on a bulletin board system (BBS) on a communication network, and the computer program may be delivered via a network. The computer program may be started and executed under the control of the OS in the same manner as the other application programs, so that the above process can be executed.

2B is a side view of the wire rope acceleration deterioration device and the camera according to the modification. 2B, when the rotating shaft 230 is shared and two or more wire rope acceleration deterioration devices 2 are provided, the camera 3 is moved to a proper position, so that two or more wire rope accelerations The rope diameter may be measured for the deterioration device 2.

When two or more wire rope acceleration deterioration devices 2 sharing a rotating shaft 230 and having spokes 212 of different lengths are provided, a zoom lens is mounted on the camera 3 to vary the focal distance The measurement of the rope diameter may be performed by controlling the focal distance and the camera 3 is moved in the depth of focus direction with the focal distance kept constant so that the wire rope W is photographed at a distance at which the focal point is focussed, .

12 is a view showing the 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 photographing at a timing at a right angle with respect to the depth of focus of the camera 3.

The light for photographing may be transmitted light through the wire rope W disposed on the opposite side of the camera 3, or may be provided on the side of the camera 3 with respect to the wire rope W to use reflected light.

The surface of the wire rope W can be photographed by photographing using the reflected light of the photographing illumination. It is possible to check the rope diameter and the surface state (wear state, rust, etc.) of the wire rope W by confirming the photographed image at the time corresponding to the measurement of the rope diameter.

The present invention is capable of various embodiments and modifications without departing from the 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 indicated not by the embodiment but by the claims. Various modifications made within the scope of the claims and the equivalents thereof are deemed to be within the scope of the present invention.

This application claims priority based on Japanese Patent Application No. 2014-224006, filed on November 4, 2014, which includes specification, claims, drawings and summary. The disclosure of Japanese Patent Application No. 2014-224006 is incorporated herein by reference in its entirety.

(Industrial applicability)

The present invention can be used, for example, in a rope diameter measuring system for measuring the rope diameter of a wire rope.

1: Rope diameter measuring device
2: wire rope acceleration deterioration device
3: Camera
11: Operation information acquisition unit
12:
13:
14:
15: Image information acquisition unit
16: rope diameter calculation section
17: Output section
21:
22: Control device
30: Internal bus
31:
32: Main memory unit
33: External storage unit
34:
35:
36: Input / output unit
37: Transmitting /
39: Control program
100: Rope diameter measurement system
211: Pulley
212: spoke
213: Hub
230: rotating shaft
300: Rope Diameter Measurement System
W: Wire rope

Claims (6)

A wire rope acceleration deterioration device in which a spoke having a pulley at one end is rotated around the other end so as to repeatedly bend the wire rope stuck to the pulley,
A camera for photographing the wire rope,
An operation information acquisition unit that receives operation information indicating the motion of the pulley from the wire rope acceleration deterioration device, and a control unit that determines a photographing timing of the camera so that the focus of the camera matches the wire rope based on the operation information A camera control section for transmitting a photographing instruction signal to the camera at the photographing timing determined by the timing determining section; an image information acquiring section for receiving image information representing the photographing image of the wire rope from the camera; And a rope diameter calculating section for calculating rope diameter of the wire rope by analyzing the photographed image represented by the rope diameter calculating section and generating rope diameter information indicating the calculated rope diameter,
And,
The camera, when receiving the photographing instruction signal, photographs the wire rope
Rope Diameter Measurement System.
The method according to claim 1,
Wherein the timing determining section 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,
Wherein the camera control section transmits the photographing instruction signal to the camera at a photographing frequency determined by the timing determining section
Rope Diameter Measurement System.
3. The method according to claim 1 or 2,
Wherein the timing determining section calculates a change amount of the rope diameter from the rope diameter information, determines the photographing condition of the camera based on the change amount,
The camera control section transmits the photographing instruction signal to the camera together with photographing condition information indicating the photographing condition determined by the timing determining section,
The camera, when receiving the photographing instruction signal together with the photographing condition information, photographs the wire rope in the photographing condition indicated by the photographing condition information
Rope Diameter Measurement System.
A wire rope acceleration deterioration device in which a rope position fluctuates at a constant cycle by repeatedly performing a bending operation on a wire rope stuck to the pulley by rotating a spoke having a pulley at one end around the other end, Wherein the rope diameter measuring device comprises:
An operation information acquisition unit that receives operation information indicating movement of the pulley from the wire rope acceleration deterioration device,
A timing determining unit for determining a photographing timing of the camera so that the focus of the camera is matched to the wire rope based on the operation information;
A camera control section for transmitting a photographing instruction signal to the camera at a photographing timing determined by the timing determining section;
An image information acquisition unit that receives image information representing a photographed image of the wire rope from the camera;
Calculating a rope diameter of the wire rope by analyzing the photographed image represented by the image information, and generating rope diameter information indicative of the calculated rope diameter,
And a rope diameter measuring device.
Wherein a wire rope acceleration deterioration device that performs a bending operation repeatedly on a wire rope caught by the pulley by rotating a spoke provided with a pulley at one end around the other end,
Transmitting operation information indicating movement of the pulley to a rope diameter measuring device,
Wherein the rope diameter measuring device comprises:
An operation information acquiring step of receiving the operation information from the wire rope acceleration deterioration device;
A timing determining step of determining, based on the operation information, a photographing timing of the camera so that the focus of the camera is matched with the wire rope;
A camera control step of transmitting a photographing instruction signal to the camera at a photographing timing determined in the timing determining step;
The camera,
A step of receiving the photographing instruction signal and photographing the wire rope,
Transmitting image information representing a photographed image of the wire rope to the rope diameter measuring device,
Wherein the rope diameter measuring device comprises:
An image information acquiring step of receiving the image information from the camera;
Calculating a rope diameter of the wire rope by analyzing the shot image represented by the image information, and calculating rope diameter information indicating the calculated rope diameter,
And measuring the diameter of the rope.
A wire rope acceleration deterioration device for repeatedly performing a bending operation on the wire rope caught by the pulleys by rotating a spoke provided with a pulley at one end around the other end thereof and a computer connected to a camera for photographing the wire rope,
A timing determining unit for determining a photographing timing of the camera so that a focal point of the camera matches the wire rope based on operation information indicating movement of the pulley received from the wire rope acceleration deterioration device;
A camera control section for transmitting a photographing instruction signal to the camera at a photographing timing determined by the timing determining section;
Calculating a rope diameter of the wire rope by analyzing a photographed image represented by image information received from the camera, and generating rope diameter information indicative of the calculated rope diameter,
.

Images