CN104185786B - Cable rope inspection device - Google Patents
Cable rope inspection device Download PDFInfo
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- CN104185786B CN104185786B CN201380013930.4A CN201380013930A CN104185786B CN 104185786 B CN104185786 B CN 104185786B CN 201380013930 A CN201380013930 A CN 201380013930A CN 104185786 B CN104185786 B CN 104185786B
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- cable rope
- camera head
- rope inspection
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- 238000007689 inspection Methods 0.000 title claims abstract description 81
- 238000001514 detection method Methods 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 13
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 12
- 239000000284 extract Substances 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001678 irradiating effect Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 239000002932 luster Substances 0.000 description 1
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Classifications
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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
- G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
- G01B11/105—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving using photoelectric detection means
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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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
Abstract
Cable rope inspection device has: camera head (120), and it is continuously shot the hawser (1) of traveling as image；Area source (130), it is configured to middle relative with camera head across hawser, and irradiates light towards hawser and camera head；State analysis device (150), its image according to the hawser photographed by camera head, carry out the analysis of hawser state；And analyze device displaying result (160), it shows the analysis result gone out by state analysis device analysis.
Description
Technical field
The present invention relates to the inspection device of hawser.
Background technology
As existing cable rope inspection device, propose following inspection device: in centre across the position that hawser is relative, it is each configured with light-projecting portion and the light accepting part of the light received by hawser of irradiating laser, makes hawser advance, measure the diameter (such as patent documentation 1) of hawser total length.
Additionally, as the cable rope inspection device employing picture pick-up device, it is proposed that following device: shoot the light that hawser is irradiated reflection light on hawser with picture pick-up device, thus carry out the inspection (such as patent documentation 2) of hawser.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 11-325844 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2011-132010 publication
Summary of the invention
The problem that invention to solve
As described in Patent Document 1, check in device at the rope employing laser mode, briefly, obtain, as measurement result, the data that data are the cable diameter of hawser length-over.Therefore, such as there are the following problems: when confirm cable diameter attenuate singularly such measurement data, in order to find out the details of its situation or reason, it has to making actual the advancing to of rope is considered as the position of this exception, operating personnel be visually confirmed to be this part.
On the other hand, as described in Patent Document 2, hawser irradiating light and is utilizing camera head to shoot in the inspection device of mode of its reflection light, operating personnel is able to confirm that by shooting the image recorded, and therefore, solves the problem in patent documentation 1.
But, when measuring cable diameter in mode as patent documentation 2, there is the situation of measurement precise decreasing.Namely, for instance, when being made dirty by wet goods in the surface of hawser or when there is metallic luster at the wire rod because of hawser, in the reflection light of hawser, light and shade inequality or deviation can produced.As a result of which it is, there is the problem being difficult to only extract the part photographing rope from the image photographed accurately.
Additionally, hawser is the shape of column type or produces shadow because of strand or the wire rod of composition hawser, these also all become the factor being difficult to extract hawser profile.Additionally, when when the position that hawser is relative exists object or when there is exterior light in mensuration environment, there is the problem that the extraction accuracy of hawser profile declines with camera head.
The present invention completes to solve such problem, its object is to, it is provided that a kind of cable rope inspection device that can perform hawser inspection compared with existing in high precision.
Means for solving the above
In order to reach above-mentioned purpose, the present invention is constructed as follows.
That is, the cable rope inspection device of a mode of the present invention is characterised by, it has: camera head, and it is continuously shot the hawser of traveling as image；Area source, it is configured to middle relative with described camera head across described hawser, and irradiates light towards hawser and camera head；State analysis device, its image according to the hawser photographed by described camera head, carry out the analysis of hawser state；And analysis device displaying result, it shows the analysis result gone out by described state analysis device analysis.
Invention effect
The cable rope inspection device of a mode according to the present invention, the shadow that camera head shooting is blocked by hawser from the light that area source irradiates and formed, therefore, even if when such as there is the metallic reflection etc. of greasy dirt or wire rod in the surface of hawser, it is also possible to stably extract hawser region from the image of hawser.Therefore, compared with prior art, it is possible to perform the analysis of hawser accurately.
Accompanying drawing explanation
Fig. 1 is the structure chart of the cable rope inspection device of embodiments of the present invention 1.
Fig. 2 is the axonometric chart of the cable rope inspection device illustrating the position relationship between the hawser, camera head and the area source that have in the cable rope inspection device shown in Fig. 1.
Fig. 3 is the schematic diagram of an example of the image illustrating that the camera head having in cable rope inspection device as shown in Figure 1 photographs.
Fig. 4 is the flow chart of the process action illustrating the state analysis device execution having in the cable rope inspection device shown in Fig. 1.
Fig. 5 is the schematic diagram of the histogrammic example illustrating the state analysis device generation having in the cable rope inspection device shown in Fig. 1.
Fig. 6 is illustrated the state analysis device utilizing general purpose computer to have in the cable rope inspection device shown in pie graph 1 and analyzes device displaying result and shown the schematic diagram analyzing result one example by the program run on that computer.
Fig. 7 is the structure chart of the cable rope inspection device of embodiments of the present invention 3.
Fig. 8 is the schematic diagram of an example of the image illustrating that the camera head having in cable rope inspection device as shown in Figure 7 photographs.
Fig. 9 is the flow chart of the process action illustrating the state analysis device execution having in the cable rope inspection device shown in Fig. 7.
Figure 10 is illustrated the state analysis device utilizing general purpose computer to have in the cable rope inspection device shown in pie graph 7 and analyzes device displaying result and shown the schematic diagram analyzing result one example by the program run on that computer.
Figure 11 is the structure chart of the cable rope inspection device of embodiments of the present invention 4.
Figure 12 is the schematic diagram of an example of the image illustrating that the camera head having in cable rope inspection device as shown in Figure 11 photographs.
Figure 13 illustrates that the camera head having in cable rope inspection device as shown in Figure 11 shooting exists the hawser of broken wires and the schematic diagram of an example of image that obtains.
Figure 14 is the flow chart of the process action illustrating the state analysis device execution having in the cable rope inspection device shown in Figure 11.
Figure 15 illustrates to utilize general purpose computer to constitute the state analysis device having in the cable rope inspection device shown in Figure 15 and analyze device displaying result and shown the schematic diagram analyzing result one example by the program run on that computer.
Figure 16 is an illustration in the cable rope inspection device in embodiments of the present invention 1～4 block diagram of the function of the state analysis device having.
Detailed description of the invention
Hereinafter, with reference to accompanying drawing, the cable rope inspection device as embodiments of the present invention is illustrated.It addition, in the various figures, constitute part or identical composition part for same, mark identical label.Additionally, in the cable rope inspection device of following each embodiment, as an example of hawser, adopting the hawser in elevator is example, but is certainly not limited to this.
Embodiment 1.
Fig. 1 illustrates the structure of the cable rope inspection device 101 of embodiment 1.In cable rope inspection device 101, as basic structure part, there is camera head 120, area source 130, state analysis device 150 and analyze device displaying result 160.In the construction shown in fig. 1, except these structures, also there is device, video recorder 140, diffusing panel 135 and shield (louver) 170.These structure divisions are illustrated as follows.It addition, Fig. 2 is the figure illustrating the position relationship between the hawser 1, camera head 120 and the area source 130 that have in cable rope inspection device 101.
First, the overall structure of cable rope inspection device 101 is illustrated.
Being arranged on across the hawser 1 as inspection object in the middle of camera head 120 and area source 130 and as to be mutually facing, area source 130 irradiates light to hawser 1 and camera head 120.Therefore, when observing from camera head 120 side, area source 130 is positioned at the rear side of hawser 1.Under such a configuration, make hawser 1 advance, and make camera head 120 shoot its image.The image data of the hawser 1 photographed by camera head 120 is stored in device, video recorder 140.State analysis device 150 reads in device, video recorder 140 image data of record, and the filmed image of hawser 1 is analyzed, and shows the state as its result, the quality that comprises hawser 1 hawser 1 in analyzing device displaying result 160.Herein, the state of so-called hawser 1 such as refers to the external diameter of hawser 1, there are non-corroding, hawser 1 in the surface of hawser 1 with or without broken wires etc..The state that state analysis device 150 is analyzed is not limited to these physical quantitys and/or physical phenomenon, also includes intensity and the aging relevant all physical quantities of process and/or the physical phenomenon in time of hawser.
Hereinafter, these composition parts are described in detail.
Camera head 120 is configured to the attitude that the horizontal line of imaging apparatus is vertical with the length direction of hawser 1, and is configured in the visual field comprise hawser 1 and be arranged on visual angle as its area source 130 behind.By so configuring, camera head 120 can shoot the light irradiated from area source 130 simultaneously and be blocked by hawser 1 and the shadow that formed and the light being emitted directly toward camera head 120 from area source 130.
Furthermore it is also possible to configure diffusing panel 135 between hawser 1 and area source 130 so that the light irradiated from area source 130 is irradiated in hawser 1 and camera head 120 by diffusing panel 135.
Further, it is also possible to configure shield 170 between hawser 1 and diffusing panel 135 so that the light sent from area source 130 passes through shield 170, is irradiated in hawser 1 and camera head 120.Herein, shield 170 is the light filter of the direct of travel for controlling light, and it is configured to vertical with the optical axis of camera head 120.Preferably use diffusing panel 135 and shield 170 simultaneously, but it is also possible to constitute, only there is any one party.
Fig. 3 is the schematic diagram of the example illustrating the image photographed by camera head 120.Irradiate light from area source 130 to hawser 1 and camera head 120, therefore, blocked by hawser 1 and become and be taken dark shown in the middle body of region 1A such as Fig. 3 of shadow.On the other hand, be emitted directly toward from the light of area source 130 camera head 120 part 130A such as Fig. 3 left-right parts shown in be taken brighter.
It addition, concept map when Fig. 3 is to use area array cameras (areacamera) as camera head 120, but, cable rope inspection device 101 is not limited to area array cameras, it is also possible to be line-scan digital camera (linecamera).
In addition, Fig. 3 is 1 camera head 120 figure when 1 hawser 1 is shot, but in cable rope inspection device 101, camera head 120 can also be configured to have in 1 visual field many hawsers 1, these many hawsers 1 are analyzed by state analysis device 150 simultaneously, and show its result in analyzing device displaying result 160 simultaneously.
Device, video recorder 140 is the device of the image data of the hawser 1 of the traveling that record is shot by camera head 120.Such device, video recorder 140 can be set to the mode of any one being built in camera head 120 or state analysis device 150, it is also possible to is set to carry out, relative to camera head 120 and state analysis device 150, the mode that plugs.In addition it is also possible to be camera head 120 and the mode of state analysis device 150 of connecting with cable.Specifically, as device, video recorder 140, it is possible to use the record medium such as hard disk, nonvolatile memory, CD or video-tape.
In the present embodiment, state analysis device 150 sequential reads out the filmed image data of the hawser 1 of record in device, video recorder 140 frame by frame, carries out the analyzing and processing of the state of hawser 1.The result of analyzing and processing displays in analyzing device displaying result 160.
State analysis device 150 is really and employs a computer to realization, its software corresponding with each analytic function (program) and for performing the hardware such as CPU (central operation process device) and the memorizer composition of described software, the state analysis action description part at following hawser 1 also can be described in detail.It addition, above computer preferably corresponds to the microcomputer being built in cable rope inspection device 101, but stand-alone type personal computer can also be used.
Analyze device displaying result 160 to be such as made up of the computer identical with state analysis device 150, and use the display of this computer.It is of course also possible to use the display additionally arranged.
It addition, when recording from the image of camera head 120 and reproduce recording image later, it is possible to from the structure shown in Fig. 1, omit device, video recorder 140.In this case, camera head 120 and state analysis device 150 are directly connected to, and the signal of video signal come from camera head 120 transmission is sequentially carried out analysis by state analysis device 150 in real time.
It follows that the content of the analyzing and processing that state analysis device 150 performs is illustrated.
Herein, as shown in figure 16, state analysis device 150 functionally also comprises the action in each embodiment described later, has: rope extracted region portion 151, viewing area extraction unit 152, travel distance information identification part 153, travel distance information output part 154, rope diameter obtaining section 155, rust detection portion 156 and broken wires test section 157 respectively constitute part.As mentioned above, such state analysis device 150 is really and employs a computer to realization, and these are made up of hardware such as the software (program) corresponding with each function and the CPU and the memorizeies that are used for performing described software 151～157 parts that respectively constitute represented.Additionally, said procedure not only includes the program that directly can be performed by computer, and it is thus possible to the program performed in including such as reading in via communication line and be arranged on hard disk etc..It addition, also include the program compressed or encrypt.
Hereinafter, with reference to Fig. 4, the analyzing and processing flow process in the state analysis device 150 comprising such funtion part is illustrated.
State analysis device 150 reads the camera data (step S11) being shot by camera head 120 and being recorded from device, video recorder 140, and each frame of camera data is performed following process successively.
First, state analysis device 150 is by rope extracted region portion 151, for 1 frame camera data, optical characteristics according to area source 130, the region 1A (Fig. 3) making the part 130A (Fig. 3) and the shadow photographing hawser 1 that photograph area source 130 separates, and extracts the region 1A (step S12) of hawser 1.Herein, above-mentioned optical characteristics such as refers to the eigenvalues such as color (wavelength characteristic) and/or its intensity (brightness) of the emergent light of area source 130.
The extraction action of the region 1A of the hawser 1 in step S12 is described in detail.Herein show the example of process that the intensity according to light (brightness) extracts the region 1A of hawser 1.
First, shooting image as Fig. 3, the rope extracted region portion 151 of state analysis device 150 generates the brightness histogram shown in Fig. 5.In the rectangular histogram generated, substantially generate two peak values.In Figure 5, the peak value occurred in the part that brightness is dark corresponds to the part shooting dark because of the shadow of hawser 1, the part that the peak value in light appearance shoots brighter corresponding to the light because irradiating from area source 130.
It follows that rope extracted region portion 151 uses this rectangular histogram, calculate the threshold value of region 130A for the region 1A and area source 130 distinguishing hawser 1.Computational methods as threshold value, for instance techniques of discriminant analysis or type method etc. can be used.And then, the pixel that the threshold value brightness ratio obtained is big is identified as the region 130A of area source 130, and pixel less for brightness is identified as the region 1A of hawser 1.
It addition, herein exemplified with according to video generation rectangular histogram the step automatically determining threshold value, but threshold value can also be set to fixed value set in advance.
It follows that state analysis device 150 measures the width (step S13) of the region 1A of the hawser 1 extracted by rope diameter obtaining section 155.Unit when obtaining the width of region 1A on image is pixel count.Therefore, in rope diameter obtaining section 155, preset the conversion coefficient (actual size that every 1 pixel is suitable) between the actual size of pixel count and rope 1.And then, the rope diameter obtaining section 155 pixel count according to the width of the region 1A of the hawser 1 extracted, use above-mentioned conversion coefficient to calculate the actual size of the diameter of hawser 1.Thereby, it is possible to grasp the actual size of the hawser 1 photographed.It addition, the method obtaining the actual size of hawser 1 according to pixel count is not limited to the above-mentioned method using conversion coefficient, naturally it is also possible to adopt other known methods such as such as using inquiry table.
After obtaining actual size, carry out exporting (step S14) as data using the actual size of the diameter of the hawser 1 of acquirement.As its way of output, it is possible to carry out picture and show, preserve or printer printing etc. with document form.
Each frame of the image photographed is performed above-mentioned steps, thereby, it is possible to the total length containing hawser 1 obtains its result to measure its diameter.
Next, as mentioned above, analysis device displaying result 160 is really and employs a computer to realization, and it is constituted by the software (program) corresponding with following function and for performing the hardware such as CPU (central operation process device) and the memorizer of described software.Herein, as the function analyzing device displaying result 160, have: recording image display part 161, image file specifying part 162, conversion coefficient input portion 163, cable diameter measurement result display part 164, cable diameter curve chart display part 165, operating portion 166, travel distance display part 167 (embodiment 4) and corrosion ratio display part 168 (embodiment 4).
Fig. 6 illustrates and utilizes 1 general purpose computer to constitute state analysis device 150 and to analyze the function of these both sides of device displaying result 160, and is carried out the analysis of hawser 1 by the software program on this computer and show an example of its result etc..
Before being analyzed processing, input the above-mentioned conversion coefficient between above-mentioned pixel count and actual size to the conversion coefficient input portion 163 in display (analyzing device displaying result 160) in advance.
First, the image file recorded from device, video recorder 140 by image file specifying part 162 is specified the image file being desired with analyzing and processing.According to this appointment, in image file specifying part 162, program reality reads specified image file from device, video recorder 140.The image of the image file read is reproduced display by recording image display part 161.Additionally, according to read-out image file, according to above-mentioned step, perform the mensuration of cable diameter.Its measurement result is shown as broken line graph by cable diameter curve chart display part 165.Additionally, operating personnel can be operated by operating portion 166 image of display in recording image display part 161 is reproduced, suspends, F.F. or rollback.Additionally, with the display of recording image display part 161 synchronously, the current location display 165d in cable diameter curve chart display part 165 is moved left and right.So, cable diameter curve chart display part 165 also has the function as simultaneous display portion concurrently.Additionally, the measurement result of the cable diameter of correspondence is by cable diameter measurement result display part 164 simultaneous display.
So, cable rope inspection device 101 according to present embodiment, camera head 120 shoots the light irradiated from area source 13 and is blocked by hawser 1 and the shadow that formed, therefore, even if when the surface of hawser 1 such as exists the metallic reflection etc. of greasy dirt or wire rod, cable rope inspection device 101 also is able to stably extract from image the region 1A of hawser 1.Therefore, according to cable rope inspection device 101, compared with the past, it is possible to perform the analysis of hawser accurately.
Additionally, when area source 130 has diffusing panel 135, area source 130 becomes the area source of illuminance distribution.Therefore, in the rectangular histogram of the brightness of shooting image, the respective Luminance Distribution of hawser region 1A and background area (photographing the part of area source) 130A can be separated clearly.Therefore, by having diffusing panel 135, it is possible to increase the stability of the extraction process of hawser region 1A.
Additionally, when having shield 170 between hawser 1 and area source 130, the light irradiated from area source 130 to camera head 120 becomes directional light.Therefore, it is suppressed that the light produced near the border between the shadow and background of hawser 1 around (return to り body).Therefore, it is possible to photograph between the shadow and background highlighting hawser 1 light and shade difference image, therefore, with have diffusing panel 135 structure effect in the same manner as, by having shield 170, it is possible to increase the stability of the extraction process of hawser region 1A.
Embodiment 2.
In the cable rope inspection device 101 of embodiment 1, the area source 130 shown in Fig. 1 can also be set to monochromater.Especially, when there is interference light in the environment using cable rope inspection device in each embodiment, monochromater is useful.That is, when camera head 120 shooting hawser 1 under the apparent condition disturbing light directive hawser 1, the part of the shadow of hawser 1 is taken brighter, shadow part and background parts, namely diminishes from the light and shade difference between the light part of light source.As a result of which it is, in the process of state analysis device 150, the precision of the region 1A extracting hawser 1 likely declines.
And by using the monochromatic light with the optical characteristics different from the reflection light of interference light as area source 130, it is possible to suppress the probability of above-mentioned precise decreasing.Such as, depositing in case at natural light as interference light, from the typically not appearance of situation that reflection light is green light or blue light of hawser 1, therefore, the monochromatic light using green light or blue light is effective as area source 130.
When using green light as area source 130, state analysis device 150 performs the extraction action (the step S12 of Fig. 4) of the region 1A of hawser 1 as follows.Namely, state analysis device 150 is for each pixel in the frame of photographed images, if the intensity of green light is sufficiently large and compared with the intensity of green light the intensity of red light and blue light sufficiently small, then this pixel is judged to background parts, on the other hand, if it is not, be then judged to the region 1A of hawser 1.
In the same manner as the step of narration in embodiment 1, the threshold value for this judgement can calculate automatically according to rectangular histogram, it is also possible to is fixed value set in advance.
According to such structure, even if in the environment that there is interference light, state analysis device 150 also easily identifies the region 1A of the hawser 1 and region 130A of area source 130, improves the precision extracting hawser region 1A.
It addition, when the single panel type that imaging apparatus is Bayer (Bayer) pattern of camera head 120, the twice of the light receiving pixel that the light receiving pixel of green light is configured to red light and blue light is many, therefore, highly sensitive to green light.Therefore, in such a situation it is preferred that use green monochromater as area source 130.As a result of which it is, the light of area source 130 and the region 1A of hawser 1 can be shot with high sensitivity and high-resolution, it is possible to increase the precision of the analyzing and processing of state analysis device 150.
Embodiment 3.
Fig. 7 illustrates the structure chart of the cable rope inspection device 103 in embodiment 3.This cable rope inspection device 103 have employed following structure: in the cable rope inspection device 101 of embodiment 1, adds and be configured with display 180 between hawser 1 and area source 130.Herein, display 180 is arranged on the position in the shooting visual field entering camera head 120, shows the information relevant to the travel distance of hawser 1.This information such as be drive hawser 1 motor rotating speed or from rotate start elapsed time etc..
It addition, other structure is identical with cable rope inspection device 101, omit explanation herein.
Fig. 8 is the schematic diagram of the example being shown under the state being configured with display 180 image photographed by camera head 120.In fig. 8, it is illustrated that display 180 shows the situation of the travel distance information of hawser 1 by numeral, but it is also possible to utilize the spatial symbols such as bar code to show the information of travel distance.
By such composition, cable rope inspection device 103 can shoot simultaneously and record display device 180 in display information and hawser 1, therefore, it is possible to confirm the position of the analysis result of hawser 1 and the hawser 1 corresponding with this analysis result being mapped afterwards.
In addition it is also possible to be set to make state analysis device 150 automatically identify the information of display in display 180.In this case, in order to easily carry out the identifying processing in state analysis device 150, it is preferable that do not show word in display 180, and use the spatial symbols such as bar code.
Fig. 9 illustrates the flow process of the process of the state analysis device 150 in following situation: the process with the diameter measuring hawser 1 in above-mentioned steps S12～step S14 concurrently, makes state analysis device 150 carry out the identification for the travel distance information being shown in display 180 in image.
First, the viewing area extraction unit 152 (Figure 16) of state analysis device 150 extracts the region (step S22) that display 180 displays from frame, and the travel distance information (step S23) of display in display 180 is identified in the travel distance information identification part 153 (Figure 16) of state analysis device 150.Further, the travel distance information that the travel distance information output part 154 (Figure 16) of state analysis device 150 will identify that carries out exporting (step S24) as data.
Figure 10 illustrates the display example analyzing device displaying result 160 in the cable rope inspection device 103 in present embodiment 3.As already explained, by recording image display part 161, the image of the image file that display is read-out, in the present embodiment, the display information in display 180 is also revealed.So, in fig. 10 it is shown that in the analysis device displaying result 160 of present embodiment, with the image synchronous of hawser 1 show the travel distance recognition result of hawser 1 when an example of picture.In addition, as it can be seen, in analyzing device displaying result 160, be provided with the display part 167 for the display information in display 180, in this example, display part 167 makes the travel distance information of hawser 1 and the display of recording image display part 161 synchronously change display.
By adopting composition described above, the form that the information of the width of hawser 1 and travel distance information combine using each frame with the image of hawser 1 can be exported by the cable rope inspection device 103 in present embodiment 3 as electronic data.Therefore, when obtaining abnormal measurement result, it is possible to easily and rapidly carry out confirming operation.
Embodiment 4.
Figure 11 illustrates the structure of the cable rope inspection device 104 of embodiments of the present invention 4.Being in that with the difference of the cable rope inspection device 103 in embodiment 3: also have light source 190 near camera head 120, this light source 190 is for irradiating light from the lateral hawser 1 of camera head 120.The lateral parts that light source 190 is configured to hawser 1 also irradiates light.
It addition, other structure is identical with cable rope inspection device 103, omit the description herein.
Figure 12 is shown under the structure of embodiments of the present invention 4, camera head 120 schematic diagram of an example of the image photographed.By arranging light source 190, when observing from camera head 120, light is also irradiated in the front of hawser 1, therefore, it is possible to shot the situation on hawser 1 surface by camera head 120.
In the cable rope inspection device 104 of present embodiment 4, for instance make light source 190 irradiate white light respectively, area source 130 is made to irradiate green light.Additionally, the state analysis device 150 of cable rope inspection device 104 is according to the step identical with the step of narration in embodiment 2, in image, isolates background, namely isolate the green light of area source 130, extract the region 1A of hawser 1.
The cable rope inspection device 104 of present embodiment 4 also is able to as described above the apparent condition of hawser 1 is analyzed, therefore, the state analysis device 150 of cable rope inspection device 104 can have rust detection portion 156, and the corrosion region on hawser 1 surface is detected in this rust detection portion 156.
Such as, when irradiating white light from light source 190 to hawser 1 and shooting its reflection light by camera head 120, the reflection light of the corrosion part of hawser 1 becomes rubescent color.Therefore, by rust detection portion 156 presets the scope of the characteristic quantity of the color being judged as corrosion, the color of this scope with reflection light being compared, thus, rust detection portion 156 extracts the corrosion region in the 1A of hawser region.
Additionally, the state analysis device 150 of cable rope inspection device 104 can have the broken wires test section 157 of the broken wires of detection hawser 1.
Figure 13 illustrates the example of the image of the hawser 1 that there is broken wires.When normal hawser 1, obtain very regular periodic texture, on the other hand, when producing broken wires, discontinuity point can be produced as shown in the 1c in Figure 13.Broken wires test section 157 utilizes this phenomenon, analyzes the periodicity of texture, it may be found that the part of irregularities is judged to broken wires.
Figure 14 illustrates the flow process of the process of the state analysis device 150 in the cable rope inspection device 104 of present embodiment 4.
After having carried out the extraction process (step S12) of hawser region 1A, rust detection portion 156 extracts the corrosion region (step S33) in this region, the information (step S34) of output corrosion position.Additionally, with the process of this rust detection concurrently, broken wires test section 157 detects the broken wires (step S43) in the 1A of hawser region, the information (step S44) of output wire rod fracture position.
Figure 15 illustrates to utilize general purpose computer to constitute the state analysis device 150 having in cable rope inspection device 104 and to analyze device displaying result 160, and utilize the program run on that computer to show the figure analyzing result one example, beyond its mode in the embodiment 1 having been described above and embodiment 3, illustrate rust detection result and the example of broken wires testing result further.
In recording image display part 161, the corrosion position detected is coated with as 11b and plots circle, detect the position of broken wires as 11c with circle round being emphasized display.Additionally, in cable diameter curve chart display part 165, show that rust detection region accounts for the ratio of whole hawser region 1A with broken line graph 165b, and broken wires is detected position display with circle as 165c.About the ratio in rust detection region, and the synchronized reproduction of image ground, display with numerical value in corrosion ratio display part 168.Corrosion ratio herein refers to the ratio of the size (pixel count) in the rust detection region size (pixel count) relative to the hawser region 1A in frame.
So, the cable rope inspection device 104 according to present embodiment 4, it is possible to reproduce the image of the hawser 1 recorded later, it is possible to be visually confirmed to be the apparent condition of hawser 1.Furthermore it is possible to easily pass through the generation situation of image analysing computer corrosion and/or broken wires to investigate hawser 1.
The structure of appropriately combined each embodiment described above can also be adopted.In this case, it is possible to obtain the effect of the various combination of effects that combined embodiment plays.
Additionally, by the arbitrary embodiment in appropriately combined above-mentioned various embodiments, it is possible to play the effect each having.
With reference to accompanying drawing and the present invention has been sufficiently carried out record in association with preferred embodiment, but those skilled in the art will be apparent from it being carried out various deformation and/or correction.Being construed as, these deformation and/or correction without departing from the scope of the present invention based on claims, are then also contained in wherein.
It addition, in this manual, quote the description of Japanese patent application No. Patent 2012-73532 of application on March 28th, 2012, accompanying drawing, claims and summary complete disclosure by reference.
Label declaration
1 hawser,
101,103,104 cable rope inspection device,
120 camera heads, 130 area sources, 135 diffusing panels, 140 device, video recorders,
150 state analysis devices, 151 rope extracted region portions,
152 viewing area extraction units, 153 travel distance information identification parts,
154 travel distance information output parts, 155 rope diameter obtaining sections, 156 rust detection portions,
157 broken wires test sections, 160 analyze device displaying result,
161 recording image display parts, 165 cable diameter curve chart display parts,
170 shields.
Claims (13)
1. a cable rope inspection device, it is characterised in that this cable rope inspection device has:
Camera head, it is continuously shot the hawser of traveling as image；
Area source, it is configured to middle relative with described camera head across described hawser, and irradiates light towards hawser and camera head；
State analysis device, its image according to the hawser photographed by described camera head, carry out the analysis of hawser state；
Analyzing device displaying result, it shows the analysis result gone out by described state analysis device analysis；And
Display, it is configured in the shooting visual field of described camera head, shows the information relevant to the advanced positions of hawser.
2. cable rope inspection device according to claim 1, it is characterised in that
The information that described display pair is relevant to the advanced positions of hawser is spatially encoded and displays.
3. cable rope inspection device according to claim 1, it is characterised in that
Described cable rope inspection device also has device, video recorder, the image that this device, video recorder record is photographed by described camera head, and the image recorded is sent to described state analysis device.
4. cable rope inspection device according to claim 1, it is characterised in that
Described area source has diffusing panel.
5. cable rope inspection device according to claim 1, it is characterised in that
Described cable rope inspection device also has shield, and this shield configures with the attitude vertical with the optical axis of described camera head between described hawser with described area source.
6. cable rope inspection device according to claim 1, it is characterised in that
Described area source is monochromater.
7. cable rope inspection device according to claim 1, it is characterised in that
Described cable rope inspection device also has light source, and this light source is configured near described camera head, from image capture device side, hawser is illuminated.
8. cable rope inspection device according to claim 7, it is characterised in that
Described light source is white light source.
9. cable rope inspection device according to claim 1, it is characterised in that
Described state analysis device has extraction unit, and this extraction unit extracts hawser region for each frame of the image obtained from described camera head.
10. cable rope inspection device according to claim 9, it is characterised in that
Described state analysis device also has rope diameter obtaining section, and this rope diameter obtaining section obtains cable diameter according to the pixel count in the hawser region extracted.
11. cable rope inspection device according to claim 7, it is characterised in that
Described state analysis device has:
Extraction unit, it extracts hawser region for each frame of the image obtained from described camera head；And
Rust detection portion, it is in the described hawser region extracted, and detects the corrosion on hawser surface according to the Color Characteristic in described light source reflection light on hawser.
12. cable rope inspection device according to claim 7, it is characterised in that
Described state analysis device has:
Extraction unit, it extracts hawser region for each frame of the image obtained from described camera head；And
Broken wires test section, it is in the described hawser region extracted, according to shooting described light source reflection light on hawser and the image that obtains the periodicity based on texture detect the broken wires of hawser.
13. cable rope inspection device according to claim 1, it is characterised in that
Described analysis device displaying result has:
Reproducing display part, the image of the hawser of record in the device, video recorder of the image that record is photographed by described camera head is carried out reproducing display by it；And
Simultaneous display portion, it shows the described state analysis device analysis result to hawser with reproducing image synchronous ground.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP2012-073532 | 2012-03-28 | ||
| JP2012-073532 | 2012-03-28 | ||
| JP2012073532 | 2012-03-28 | ||
| PCT/JP2013/051324 WO2013145823A1 (en) | 2012-03-28 | 2013-01-23 | Wire rope inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104185786A CN104185786A (en) | 2014-12-03 |
| CN104185786B true CN104185786B (en) | 2016-06-29 |
Family
ID=49259109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380013930.4A Active CN104185786B (en) | 2012-03-28 | 2013-01-23 | Cable rope inspection device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5769875B2 (en) |
| KR (1) | KR20140123593A (en) |
| CN (1) | CN104185786B (en) |
| TW (1) | TWI501914B (en) |
| WO (1) | WO2013145823A1 (en) |
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|---|---|---|---|---|
| HUE037052T2 (en) * | 2015-10-21 | 2018-08-28 | Liebherr Components Biberach | Device for detecting the replacement state of wear of a high-strength fibre cable for hoisting devices |
| ITUB20160775A1 (en) * | 2016-02-16 | 2017-08-16 | Redaelli Tecna Spa | DEVICE FOR THE CONTINUOUS AND AUTOMATIC MEASUREMENT OF GEOMETRIC PARAMETERS OF A ROPE |
| CN105509646A (en) * | 2016-02-25 | 2016-04-20 | 天津高盛钢丝绳有限公司 | FPGA (field programmable gate array)-based infrared laser wire rope diameter measurement system |
| JP6857192B2 (en) * | 2016-04-01 | 2021-04-14 | シュロニガー アーゲー | Combination sensor |
| JP6875836B2 (en) | 2016-11-29 | 2021-05-26 | 株式会社明電舎 | Wire rope measuring device and method |
| US9988242B1 (en) * | 2017-01-11 | 2018-06-05 | Otis Elevator Company | Elevator rail healthy monitoring method |
| JP6956616B2 (en) * | 2017-12-12 | 2021-11-02 | 東京製綱株式会社 | Rope tester, wire rope analyzer and its control program |
| JP7134793B2 (en) * | 2018-08-29 | 2022-09-12 | オーチス エレベータ カンパニー | Elevator rope elongation measuring device and elevator rope elongation measuring method |
| JP7011554B2 (en) | 2018-08-29 | 2022-01-26 | オーチス エレベータ カンパニー | Elevator rope inspection device and elevator rope inspection method |
| JP7275965B2 (en) * | 2019-07-30 | 2023-05-18 | 株式会社明電舎 | Elevator Rope Deterioration Diagnosis Device and Elevator Rope Deterioration Diagnosis Method |
| EP4013711A4 (en) * | 2019-08-16 | 2022-08-17 | KONE Corporation | Method for generating a representation of an elevator rope, a control unit and a computer program product for performing the same |
| JP7422213B2 (en) | 2019-08-16 | 2024-01-25 | コネ コーポレイション | Elevator rope monitoring device, method and computer program product therefor, and elevator system |
| CN110595378B (en) * | 2019-10-17 | 2023-04-14 | 中煤科工集团重庆研究院有限公司 | Real-time ground surface or slope deformation monitoring device and method based on laser ranging principle |
| KR102348335B1 (en) * | 2019-11-04 | 2022-01-11 | 현대엘리베이터주식회사 | Elevator rope diagnosis device and method using ir reflector |
| KR102334334B1 (en) * | 2019-11-04 | 2021-12-06 | 현대엘리베이터주식회사 | Elevator rope diagnostic image processing apparatus and method using relative brightness template |
| JP7401390B2 (en) | 2020-05-19 | 2023-12-19 | 東京製綱株式会社 | Non-contact metal lumber inspection equipment and non-contact metal lumber health diagnosis equipment |
| CN112179287B (en) * | 2020-08-19 | 2022-01-11 | 成都飞机工业（集团）有限责任公司 | Multi-view light source-based rapid measurement device and measurement method |
| JP7276635B2 (en) * | 2021-02-17 | 2023-05-18 | 三菱電機ビルソリューションズ株式会社 | Measuring device and elevator device |
| JP7376055B1 (en) * | 2023-03-01 | 2023-11-08 | ミカサ商事株式会社 | Underwater inspection program, underwater inspection system, and underwater inspection method |
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| CN1033106A (en) * | 1987-11-17 | 1989-05-24 | 罗伯特·马森 | Be used to measure and/or the method and apparatus of the performance parameter of monitoring cable or rope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3641816A1 (en) * | 1986-12-06 | 1988-06-16 | Robert Prof Dr Ing Massen | METHOD AND ARRANGEMENT FOR MEASURING AND / OR MONITORING PROPERTIES OF YARNS AND ROPES |
| JPH0843047A (en) * | 1994-08-02 | 1996-02-16 | Toshiba Fa Syst Eng Kk | Optical inspecting apparatus |
| JPH11325844A (en) * | 1998-05-13 | 1999-11-26 | Nkk Corp | Diagnosis method of wire rope |
| JP2000331164A (en) * | 1999-05-24 | 2000-11-30 | Sharp Corp | Image processor |
| JP2005127747A (en) * | 2003-10-21 | 2005-05-19 | Daido Steel Co Ltd | Method and apparatus for inspecting surface defect in plate |
| JP2009057126A (en) * | 2007-08-30 | 2009-03-19 | Graphin Co Ltd | Deformation detector of rope for elevator |
| JP5413148B2 (en) * | 2009-11-20 | 2014-02-12 | 株式会社明電舎 | Wire rope inspection device |
| JP5446849B2 (en) * | 2009-12-25 | 2014-03-19 | 株式会社明電舎 | Wire rope inspection device |
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- 2013-01-23 JP JP2014507466A patent/JP5769875B2/en active Active
- 2013-01-23 WO PCT/JP2013/051324 patent/WO2013145823A1/en active Application Filing
- 2013-01-23 KR KR1020147025511A patent/KR20140123593A/en not_active Application Discontinuation
- 2013-01-23 CN CN201380013930.4A patent/CN104185786B/en active Active
- 2013-02-04 TW TW102104166A patent/TWI501914B/en active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1033106A (en) * | 1987-11-17 | 1989-05-24 | 罗伯特·马森 | Be used to measure and/or the method and apparatus of the performance parameter of monitoring cable or rope |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201343529A (en) | 2013-11-01 |
| JPWO2013145823A1 (en) | 2015-12-10 |
| TWI501914B (en) | 2015-10-01 |
| KR20140123593A (en) | 2014-10-22 |
| WO2013145823A1 (en) | 2013-10-03 |
| JP5769875B2 (en) | 2015-08-26 |
| CN104185786A (en) | 2014-12-03 |
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