EP3601138A1 - Monitoring the mechanical state of an escalator or a moving walkway - Google Patents
Monitoring the mechanical state of an escalator or a moving walkwayInfo
- Publication number
- EP3601138A1 EP3601138A1 EP18709575.7A EP18709575A EP3601138A1 EP 3601138 A1 EP3601138 A1 EP 3601138A1 EP 18709575 A EP18709575 A EP 18709575A EP 3601138 A1 EP3601138 A1 EP 3601138A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- escalator
- comparison
- spatial
- edges
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000001514 detection method Methods 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000013507 mapping Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 15
- 238000012423 maintenance Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 3
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- 230000007704 transition Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
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- 238000013500 data storage Methods 0.000 description 2
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- 239000006261 foam material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B25/00—Control of escalators or moving walkways
- B66B25/006—Monitoring for maintenance or repair
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B21/00—Kinds or types of escalators or moving walkways
- B66B21/02—Escalators
- B66B21/04—Escalators linear type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B21/00—Kinds or types of escalators or moving walkways
- B66B21/10—Moving walkways
Definitions
- the invention relates to a method for detecting and monitoring the mechanical condition of an escalator or moving walk, and to an escalator or moving walk with at least one detecting device for detecting and monitoring the mechanical condition.
- CN 201132723 Y discloses an escalator whose step band is monitored by a sensor. When a stage has detached from the step band, a gap is created, which the sensor detects and sends a signal to the sensor
- Escalator control outputs The escalator controller sets the tap-changer immediately after the input of the signal.
- the JP 2010269884 A discloses an escalator with a detection device for detecting and monitoring the mechanical state of the step band.
- images of escalator steps are recorded and evaluated by means of two cameras.
- JP 2009190818 A the gap between the step belt and the base plate is monitored by a plurality of sensors.
- the object of the present invention is therefore a method and a To provide detection device for detecting and monitoring the mechanical condition of an escalator or a moving walkway, which allow a high monitoring density, the detection device is still inexpensive and ensure high reliability and availability of the escalator or the moving walk.
- This object is achieved by a method for detecting and monitoring the mechanical condition of an escalator or moving walk with at least one revolving belt and with at least one detection device.
- the method includes at least the following method steps performed by the
- comparison area is defined by three-dimensional coordinates and represents a virtual space that can be uniquely assigned to the selected area
- Comparison area are brought into spatial relationship with each other.
- the reference marks can be identified as a reference mark image in the spatial image.
- a marking is arranged on a fixed area, for example on the truss or on a guide rail of the circulating belt, or this area has one
- comparison range is for example by defined spatial coordinates, also a reference mark, hereinafter referred to as a virtual reference mark, deposited.
- a reference mark hereinafter referred to as a virtual reference mark, deposited.
- the mapping is now very simple because the virtual reference mark and the reference mark image can be used as the zero points of the spatial coordinate systems of the mapping and the comparison region.
- the invention is based on the finding that the most safety-critical or damage-relevant events in an escalator or a moving walk through a spatial displacement of moving components from their intended
- Movement direction or trajectory are accompanied. Specifically, this relates in particular to the circumferentially arranged step band of an escalator or the circumferentially arranged pallet band of a moving walkway and the side of the
- Step band or pallet band parallel circumferential handrails or handrail straps or limb handrail.
- these components which can be moved circumferentially relative to fixed parts of the escalator or moving walk, are referred to below as a circulating belt.
- Fixed parts of the escalator or moving walk include, for example, the structure or truss and stationary arranged therein components such as ribs, guide rails, trim parts of the balustrade base and the like.
- the first possible event involves lowering or increasing, for example, a left side to the right side of the tread of a step or a pallet.
- the tread surface is oblique transverse to the direction of travel.
- the causes of this misalignment may be, for example, a broken step axis, a reduction in diameter due to abrasion or breakage of a tug roller or chain roller, a broken step cheek or pallet cheek, damage to a stepped bush, breakage of a connection between the pallet or step to the chain of the step belt or pallet belt or be an enlargement of the chain roller or tow roller by dirt on the tread. But it is also possible that a guide rail has lowered.
- the spatial position of the lower edges of the side cheeks of steps and pallets can be monitored.
- these lower edges are selected from the spatial image and compared with a comparison range.
- the spatial coordinates of detected points of the selected area of the spatial image are compared with spatial coordinates retrievable from an electronic data memory. The comparison determines their spatial deviation from each other. It is important that the comparison area can be clearly assigned to the selected area. This assignment will be described in more detail below.
- the spatial deviation of the selected area exceeds a predetermined virtual space defined by limit values or the selected area protrudes therefrom, it can be assumed that the event to be monitored, in the present example a skew of the tread area, has occurred. This means that an excessive skew exceeding the limit value is detected, and an alarm signal is generated by the detection device. This alarm signal can trigger various actions. The alarm signal can be forwarded to an escalator control, which then stops the circulating belt.
- the detection device For example, it may also have an optical and / or acoustic output device which warns the user.
- Deviation or exceeding of the limit value leads.
- the control of the escalator or the moving walk must immediately initiate emergency braking and fix the step band or pallet band.
- the drag roller or chain roller of the step belt or pallet belt can be selected from the spatial image and monitored accordingly. If a drag roller or chain roller is missing or its outer diameter is too large, this selected area (for example a cylindrically defined virtual space) does not coincide with the comparison area retrieved from the data memory and uniquely assignable to the selected area.
- regions are selected from the spatial image which, in the case of a possible event to be monitored, have particularly strong deviations from the corresponding comparison region and therefore represent a prominent surface or edge for this possible event.
- the second possible event concerns the inclination of a tread.
- the tread surface of the tread is indeed arranged horizontally, but the side cheeks of the pallet or step are not parallel to the balustrade base and the base plate, or the front and rear edges of the tread are not perpendicular to the base plate.
- the reasons for this inclination may be a broken step bush left or right.
- the chain length of one of the conveyor chains may be due to asymmetric wear on one side of the step belt or
- Pallet band be greater than on the other side. Also a broken connection (step axis) between the step or pallet and the conveyor chain or broken
- Sliding blocks which are the stepped belt or pallet belt at a defined distance to the
- Holding the base plate can also lead to a tilt of the tread.
- the spatial position of the side cheeks or the leading edge or the trailing edge of the treads of steps and pallets can be monitored. In this case, these regions are selected from the spatial image and compared with an assignable comparison region.
- Rear edge of the treads of steps and pallets are measured to these stationary parts and judged on the basis of the retrievable from the data storage comparison area.
- the third possible event concerns a so-called tilting of stages, as described in detail in KR 920007689 U, for example. Due to a defect there is more clearance between the guide rails and the step. Before the user leaves the step belt and steps on the comb plate, he has to take a step. In this case, the user steps on the front edge of the step (edge between tread surface and setting surface) which, due to the greater play in the system, the trailing edge can set up and then moves against the comb plate. The larger clearance is usually a consequence of wear on the step chains, chain pins, step axles, stepped bushings and step-like steps of the steps.
- the spatial position of the leading edge or the trailing edge of the treads of steps and pallets can be monitored.
- these regions are selected from the spatial image and compared with an assignable comparison region.
- the fourth possible event involves detecting an increase in the gap between a step or pallet and the base plate. This critical area, where many accidents are caused by pinching shoes, fingers,
- Clothes, etc. lies between the stationary balustrade base and the moving steps or pallets.
- objects such as soft foam material such as PCCR (Proprietary closed-cell resine) can be fed.
- the gap between the steps and the base plate should ideally be 3mm. In case of pinching a shoe / garment / finger, the gap is increased.
- the spatial image is the enlargement of the gap or the foreign parts (shoes, garments, etc.) and a shift of the step band or pallet band from the left side to the right side (or vice versa) and
- This possible event can be detected, for example, by monitoring the spatial position of the side edges of the treads of steps and pallets. In this case, these regions are selected from the spatial image and compared with an assignable comparison region. As soon as a deviation is detected, for example, an alarm signal to the
- Escalator control discontinued and this immediately stops the escalator before further retraction or a separation of parts of the objects occurs at the comb plate.
- the fifth possible event concerns the transition from tread to tread (gap between two treads). As soon as garments or other things are in the gap between the treads, they are displayed on the spatial illustrations. If the areas of the edge areas of the treads are selected, this selected area of the spatial image deviates in form and position from the assigned comparison area and the problem is recognized.
- the sixth possible event relates to the handrail tension of the circulating handrail or this circulating belt.
- the detection device is arranged so that a portion of the handrail return is also included. If the handrail is to be monitored, the detection device is preferably arranged, for example, in an escalator in the lower transition region from the horizontal portion to the inclined portion, since there due to the gravity and the arrangement of the handrail drive in the upper transition region sagging of the circulating belt occurs first. A small sag is necessary because otherwise the circulating belt is too tight and has high wear. If the tension is too low and the slack is correspondingly high, there is a risk of the friction between
- Handrail drive and circulating belt is too low.
- the on the spatial picture trapped slack is assessed, for example, on the basis of a selected, arcuate longitudinal edge of the handrail belt, which must be within the limits predetermined by the comparison range.
- the above listed possible events can all be detected or monitored by means of a single spatial image of the detection device at the monitoring time by selecting corresponding regions of the spatial image and comparing them with the assignable comparison regions.
- individual selected areas or individual prominent areas and edges such as the lower edges of step cheeks of multiple uses, as several possible
- a selected area is a distinctive area or prominent edge of a tread element or a handrail section of the circulating belt. Their spatial position to the zero point in the spatial image is above the zero point of the
- Comparison range compared with the predetermined limits of their desired position. Due to the predetermined limits (permissible deviations), the comparison region is always a virtual space in which the spatial arrangement or position of a point, an edge or an area of the spatial image is determined.
- the predetermined limits of the comparison range are then exceeded if the selected range at least one point from the virtual space of
- edges or areas are missing from the selected area, this is also considered to exceed the predetermined limits.
- edges or areas of the selected area which are arranged outside a predetermined angle tolerance boundary and not parallel to corresponding edges or areas of the virtual space.
- Detection device controlled so that in a complete revolution of the circulating belt, the whole band is imaged on pictures. Selecting and comparing can also be very great for the individual areas of a picture
- the position of the tread elements in each spatial image can be compared to the comparison region, while the sag of the handrail is checked only every hundredth image.
- each spatial image it is not absolutely necessary to evaluate each spatial image or to compare selected areas with the comparison area.
- a series of spatial images of the section of the circulating band can also be created and compared to at least one of the distances of surfaces and edges recorded on the spatial images
- Reference mark image which are selected for the associated comparison area and its virtual reference mark best matching spatial mapping and compared with at least one selected area of this spatial mapping.
- the reference mark image is approximately always reproduced at the same location of each spatial image. To achieve this, one, on fixed
- Position determining device may be provided. This detects striking surfaces, edges or markings of a tread element or a handrail section of the circulating belt. As soon as a detection takes place, the position determination device generates a trigger for triggering the image recording device as a function of the current position of the detected surfaces, edges or markings for Position-determining device.
- the images of, for example, to be detected tread elements of the circulating belt are always created in the same position relative to stationary components of the escalator.
- the drawings show various tread elements, all have been taken in almost exactly the same place with respect to the co-imaged fixed components. Thus, only a very small correction must be made or it can be directly compared with the comparison area, if by a
- Position comparison of virtual reference mark and reference mark image is found a sufficient congruence.
- the detection device comprises an electronic processing unit.
- This processing unit may also include an analysis unit.
- the analysis unit the position of areas or edges of the selected area can be analyzed to the limits of the comparison area and a storage reserve can be determined. On the basis of the determined storage reserve and / or by an analysis of a history of several previously determined, stored storage reserves, the next maintenance date can be determined.
- expected maintenance material to be determined. If appropriate, this can also be done automatically, for example by the analysis unit.
- the comparison region can be generated in various ways and stored, for example, in a data memory of the detection device or in a controller of the escalator or moving walk.
- the comparison range can also be stored in an external data memory such as, for example, in a USB stick, an external hard disk, a mobile telephone, in a database accessible via the Internet or in a cloud of the Stored on the World Wide Web and, if necessary, be retrievable from these storage media.
- Envelope body element performed and stored its spatial mapping in one of the aforementioned data storage.
- comparison area as well as the components of the escalator or the moving walk can also be constructed on a 3D CAD system and stored in the data memory.
- a test drive with at least one test element can be carried out to check the functionality of the detection device.
- the test element is designed so that it can either be installed instead of a portion of the circulating belt (for example, instead of a step) or designed as an attachment for temporary attachment to the circulating belt (for example, as a mounting strap for the handrail belt).
- This test element is dimensioned such that it protrudes from the comparison area at at least one point. Accordingly, the detection device must output an alarm signal when the spatial image of the test element has been evaluated by selecting and comparing.
- an escalator or moving walk with a circumferentially arranged band and with at least one detection device for detecting and monitoring the mechanical condition is present.
- the detection device comprises at least one image recording device, by means of which spatial images can be generated.
- the Spatial mapping according to the present document is to be understood as a virtual 3D model. More precisely, this spatial mapping is one possible
- the state of the circulating belt and / or the arrangement of areas of the belt relative to fixed components of the escalator or the moving walk can be detected by at least one spatial image of a portion of the circulating belt is generated. Marking surfaces or edges of the section recorded on this image can be selected by a processing unit of the detection device and can be compared to a three-dimensional comparison region stored in a data memory. If the selected range of the comparison range, predetermined limits
- an alarm signal is generated by the detection device.
- the detection device can have a position determination device arranged on stationary components of the escalator or of the moving walk, through which striking surfaces, edges or markings of a
- Tread element or a handrail portion of the rotating belt can be detected.
- the position detection device is a trigger for triggering the
- Image recording device as a function of the current position of the detected surfaces, edges or markers for position detection device generated.
- the detection device or its image recording device can be arranged between a feed of the circulating belt and a return of the circulating belt.
- the detection device can also several
- the image recording device can therefore be provided with a transparent protective cover which spans the transmitting device and the receiving device of the image recording device.
- the detection device may have a cleaning device, by which at least a partial surface of the transparent protective cover is periodically cleaned.
- Figure 1 shows an escalator with a detection device according to a
- FIG. 2 schematically shows the main ones with reference to the partial figures 2A to 2C
- FIG. 3 shows an escalator step as a section of a circulating belt, by means of which an inclination to the intended position is shown.
- Figure 4 shows a possible embodiment of a suitable for a learning trip
- FIG. 1 shows a side view of an exemplary escalator 1, by means of which persons can be conveyed, for example, between two levels E1, E2.
- the escalator 1 has a supporting structure 2 in the form of a truss, which is shown for the sake of clarity only in their outlines.
- the supporting structure 2 takes
- balustrades 3 due to the side view only one visible
- the balustrades 3 are connected via balustrade base 4 to the supporting structure 2.
- the handrail 5 or this revolving belt 5 is driven by a friction drive 6, which is operatively connected to a drive assembly 25 of the escalator 1.
- the correct tension of the handrail 5 is maintained by means of an only schematically illustrated handrail tensioning device 7.
- the escalator 1 also has two annular closed, circulating conveyor chains 11, wherein only one is visible due to the side view.
- the two conveyor chains 11 are composed of a plurality of chain links.
- the two conveyor chains 11 can be displaced along a travel path 8 in traversing directions.
- the conveyor chains 11 are parallel to each other and are spaced apart in a direction transverse to the direction of travel. In end regions adjacent to the levels El, E2, the conveyor chains 11 are deflected by Umlenkkettengan 15, 16.
- Treads arranged, which connect the conveyor chains 11 transverse to the travel 8 with each other. With the help of the conveyor chains 11, the tread elements 9 can be moved in the traversing directions along the travel path 8.
- a circulating belt 10 in which the tread elements 9 are arranged one behind the other along the travel path 8 and can be entered by users at least in a conveyor region 19.
- the circulating belt 10 is guided by schematically illustrated guide rails 12 and against gravity supported. These guide rails 12 are arranged stationary in the supporting structure 2.
- the sprockets 16 of the upper level E2 are connected to the drive assembly 25.
- the drive arrangement 25 is controlled by means of a controller 24 (which is only indicated very schematically in FIG. 1).
- the circulating belt 10 forms, together with the drive assembly 25 and the guide wheels 15, 16, a conveyor for users and objects whose tread elements 9 can be displaced relative to the supporting structure 2, which is stationarily anchored in the building.
- a detection device 20 is arranged in the escalator 1, which in the present example comprises two image recording devices 21 and a processing unit 22.
- the image pickup devices 21 are arranged in a stationary manner on the structure 2 in the transition regions between the horizontal sections of the escalator 1 arranged on the levels E1, E2 and the inclined center section of the escalator 1. Since in particular the load of the step belt 10, which is loaded by the user, is to be monitored and analyzed, the image recording devices 21 are arranged between the feed and the return of the step belt 10 or the circulating belt 10.
- the image recording devices 21 have a technically limited detection field ⁇ , which is shown schematically in FIG. 1 by dotted lines and the angle ⁇ . As a result, the image pickup device 21 can detect only a portion of the circulating belt 10.
- the arranged in the transition region of the lower level El image pickup device 21 may additionally detect a slack 28 of the handrail 5. This arises due to insufficient tension of the handrail 5 by the handrail tensioning device 7 and gravity at exactly this point.
- the two image pickup devices 21 are in communication with the
- the detection device 20 also has a
- Processing unit 22 is implemented as a pure software application in a computing unit and in a data memory of the controller 24. Of course, there are other ways to disperse the individual parts of the detection device 20 in the escalator 1.
- FIG. 2 schematically shows the main ones with reference to the partial figures 2A to 2C
- FIG. 1 As already shown with reference to FIG. 1, FIG. 1
- Image pickup device 21 of the detection device 20 between the flow 14 and the return not shown stationary in relation to the guide rails 12 are arranged.
- the image pickup device 21 has a hemispherical transparent protective cover 23.
- a cleaning device 18 is present, which is shown in the present example as a compressed air blowpipe.
- FIG. 2A shows a section of the circulating belt 10, more precisely two step elements 9 of the step belt 10.
- One of the two tread elements 9 has lost a towing roller 13, whereby a misalignment of the tread surface 29 is caused.
- Image recording device 21 which is why a position adjustment respectively an assignment, represented by the spatial coordinates x, y, z, is required here. This can be done via the reference mark 30 as described below.
- FIG. 2B a spatial illustration 40 of a tread element 9 of the section of the step belt 10 shown in FIG. 2A is shown schematically by means of dotted lines or picture elements. Furthermore, a corresponding virtual space 41 is shown by dotted lines.
- the spatial image 40 is produced by the image recording device 21, which may be, for example, a laser scanner or a time-of-flight camera. These image acquisition devices 21, which generate digital spatial images, acquire three-dimensional structures and map their surfaces and edges through a plurality of image points P ', each pixel P' starting from a virtual zero point
- Image coordinates x ', y', z 'or vector coordinates is defined.
- Reference mark image 30 'be
- the spatial map 40 is transmitted to the processing unit 22 (see FIG. 1). At least one region 27 'of the spatial image 40 is selected in the processing unit 22, for example the image of the mesh bottom edge 27 of the tread element 9. The selection is made according to criteria stored in the processing unit 22, for example based on regions where wear or tear occurs a maximum deviation from their original or intended position is to be expected.
- the processing unit 22 a This is, for example, part of the virtual space 41 which can be called up from the data memory 39 and is defined by virtual coordinates x ", y", z ", its surfaces and edges of a spatial image of a section of the circulating belt 10 changed by limiting values in an original situation. The initial position of this section should be considered as the original position before it has undergone a change in position as a result of wear, damage and contamination.
- the virtual space 41 shown in FIG. 2B serves merely as an example, which can all serve as a comparison area 27". Thus, for example, the entire virtual space 41 shown can be used as the comparison area 27 ", but it may also be that only individual edges 27 or areas of a tread element 9 spatially extended by limits are compared to the virtual reference mark 30"
- the spatial image coordinates x ', y', z 'between the reference mark image 30' and a clearly identifiable point, for example a point P of the riser lower edge 27 or of the detected pixel P 'of the selected region 27' can be determined.
- Creation time of the spatial mapping of the point P of the tread element 9 has the spatial coordinates x, y, z to the reference mark 30, are logically the spatial image coordinates x ', y', z 'of the imaged on the spatial image 40 pixel P' to the also imaged reference mark 30 ', identical to the spatial distance coordinates x, y, z. Ideally, uniquely identifiable points P are chosen.
- a spatial image 40 is taken by the image capture device 21 at any given time, it would be purely coincidental if the selected region 27 'of the spatial image 40 has exactly the same spatial image coordinates x', y ', z' relative to the landmark image 30 ' the corresponding comparison region 27 "to the virtual reference mark 30". In a first step, therefore, a
- a spatial position difference ⁇ for example of the pixel P ', must correspond to the corresponding virtual point P "of the corresponding
- a second step it can be determined whether the pixels P 'of the selected region 27' are still within the assigned comparison region 27 "or not.
- the detection device 20 generates an alarm signal zuhanden the controller 24, which immediately decelerates and sets the rotating belt 10.
- some areas of the spatial image 40 for example the lower edge of the side wall 31 'of the spatial image 40, protrude from the associated comparison area 31 "
- Comparison regions 27 ", 31" are compared, the more precise deviations and thus technical problems of the moving belt 10 can be detected.
- Figure 3 shows a tread element 9 as a section of a circulating belt 10. Although the Tread surface 29 of the tread element 9 is aligned horizontally, this has an exaggerated position shown in Figure 3, represented by the angle ⁇ on.
- One possible cause of this inclination to the intended direction of movement may be uneven wear on the conveyor chains 11, which lead to different lengths conveyor chains 11.
- An inclination of the tread element 9 can lead to a gap enlargement between the adjacent balustrade base 4 and the side edge
- the detection device 20 comprises an electronic processing unit 22 with a
- Analysis unit 38 By means of the analysis unit 38, the position of areas or edges of the selected area to the boundaries of the comparison area 36 "analyzed and a storage reserve ⁇ or in the present example, the angle ⁇ the
- Inclined position can be determined. Based on the determined storage reserve ⁇ and / or by an analysis of a history of several previously determined, stored
- the work steps which are likely to be carried out and the maintenance material which is expected to be required for maintenance, in the present example the conveyor chains 11 with their chain rollers 17, can be determined. If appropriate, this can also be done automatically, for example by the analysis unit 38.
- the sag 28 of the handrail 5 shown in FIG. 1 can be monitored in exactly the same way.
- the assigned comparison area is a tubular virtual space, whose center longitudinal axis corresponds to the curvature present in the start-up of the escalator 1 in this section of the handrail 5. Too much strained handrail 5 protrudes at the upper limit and an excessively taut handrail 5 at the lower limit of the associated comparison range.
- a position determining device 42 arranged on stationary components of the escalator or of the moving walk may also be present. This captures striking surfaces, edges or markings of a tread element 9 or a handrail section of the circulating belt 5, 10.
- Position determining means 42 a push-button switch arranged on one of the guide rails 12.
- Position determining means 42 encompassist, this generates a trigger for triggering the image pickup device 21 in dependence on the current position of the detected areas, edges or markings for
- Position detection device 42 As a result, the spatial images of tread elements 9 are created almost in the same position relative to fixed components as the guide rails 12. In other words, although the three-dimensional images show various tread elements 9, all have been recorded in almost the same place in relation to the fixed components surrounding them. Thus, if necessary, it is possible to dispense with a correction of distortions of the spatial images and, after the positional adjustment has been carried out via the reference marks, a comparison can be made directly with the comparison range.
- a possible malfunction of the position detection device 42 is not problematic because the necessary assignments and corrections can be made at any time by the reference marks. This significantly increases the availability of the detection device and therefore also the availability of the escalator or the moving walk.
- Figure 4 shows a possible embodiment of a suitable for a learning trip
- Enveloping body element 32 This enveloping body element 32 is, for example, a normal tread element 9, to which the attachment parts 33, 34, 35 representing the limit values are attached are.
- the enveloping body element 32 is then inserted into the circulating belt 10 and moved to the image recording device 21.
- the spatial image produced by the image recording device 21 also has the reference mark image 30 'described in FIG. 2 and can be processed by the processing unit 22 by
- distortions due to the punctiform image can be corrected by the image pickup device 21.
- the image pickup device 21 To reduce the amount of data and save memory resources, only the outlines of this rendered spatial map may be stored as virtual space 41 in data store 39. Individual areas of this virtual space 41 can then be assigned as
- Comparison areas 27 "31" are selected and stored.
- Embodiments with knowledge of the present invention can be provided, for example, by combining the features of the individual embodiments with each other and / or individual functional units of the embodiments are exchanged.
- the laser scanner itself the
- Position determining means be by, for example, a specific location of the room is continuously monitored, for example, whether a clearly identifiable, prominent body location of an escalator level is there or not.
- the handrail can also be used to trigger the time taken to pick it up, but if necessary, it must be provided with a mark as a striking body point triggering the trigger.
- FIGS. 1 to 4 have been based largely on a representation of signal transmission means.
Landscapes
- Escalators And Moving Walkways (AREA)
- Toys (AREA)
Abstract
Description
Claims
Priority Applications (1)
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PL18709575T PL3601138T3 (en) | 2017-03-28 | 2018-03-07 | Monitoring of the mechanical state of an escalator or moving walkway |
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EP17163204 | 2017-03-28 | ||
PCT/EP2018/055671 WO2018177708A1 (en) | 2017-03-28 | 2018-03-07 | Monitoring the mechanical state of an escalator or a moving walkway |
Publications (2)
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EP3601138A1 true EP3601138A1 (en) | 2020-02-05 |
EP3601138B1 EP3601138B1 (en) | 2021-05-05 |
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EP18709575.7A Active EP3601138B1 (en) | 2017-03-28 | 2018-03-07 | Monitoring of the mechanical state of an escalator or moving walkway |
Country Status (16)
Country | Link |
---|---|
US (1) | US11161717B2 (en) |
EP (1) | EP3601138B1 (en) |
JP (1) | JP7114624B2 (en) |
KR (1) | KR102407553B1 (en) |
CN (1) | CN110461756B (en) |
AR (1) | AR111264A1 (en) |
AU (1) | AU2018242117B2 (en) |
BR (1) | BR112019018231A2 (en) |
CA (1) | CA3055472A1 (en) |
ES (1) | ES2876208T3 (en) |
MX (1) | MX2019011462A (en) |
PL (1) | PL3601138T3 (en) |
RU (1) | RU2754023C2 (en) |
SG (1) | SG11201907929YA (en) |
TW (1) | TWI754020B (en) |
WO (1) | WO2018177708A1 (en) |
Families Citing this family (7)
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SG11202008916PA (en) | 2018-05-14 | 2020-10-29 | Inventio Ag | Method and apparatus for monitoring a state of a passenger transport system by using a digital double |
PL3823921T3 (en) | 2018-07-19 | 2023-01-30 | Inventio Ag | Method and device for monitoring a condition of a person transport assembly through the use of a digital doppelgänger |
US11691853B2 (en) * | 2020-05-26 | 2023-07-04 | Otis Elevator Company | Escalator with distributed state sensors |
CN112978551B (en) * | 2021-02-27 | 2023-01-31 | 浙江城际特种设备检测有限公司 | Escalator safety inspection method and system, storage medium and intelligent terminal |
US20230169110A1 (en) * | 2021-11-30 | 2023-06-01 | Microsoft Technology Licensing, Llc | Method and system of content retrieval for visual data |
TWI817311B (en) * | 2022-01-07 | 2023-10-01 | 宏碁股份有限公司 | Escalator equipment alert method and escalator equipment alert system |
EP4269314A1 (en) * | 2022-04-28 | 2023-11-01 | TK Elevator Innovation and Operations GmbH | Measuring system for escalator systems or passway systems as well as measuring method and computer program and use |
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2018
- 2018-03-07 MX MX2019011462A patent/MX2019011462A/en unknown
- 2018-03-07 WO PCT/EP2018/055671 patent/WO2018177708A1/en unknown
- 2018-03-07 ES ES18709575T patent/ES2876208T3/en active Active
- 2018-03-07 US US16/498,882 patent/US11161717B2/en active Active
- 2018-03-07 CA CA3055472A patent/CA3055472A1/en active Pending
- 2018-03-07 EP EP18709575.7A patent/EP3601138B1/en active Active
- 2018-03-07 KR KR1020197028172A patent/KR102407553B1/en active IP Right Grant
- 2018-03-07 PL PL18709575T patent/PL3601138T3/en unknown
- 2018-03-07 AU AU2018242117A patent/AU2018242117B2/en active Active
- 2018-03-07 RU RU2019134213A patent/RU2754023C2/en active
- 2018-03-07 CN CN201880020819.0A patent/CN110461756B/en active Active
- 2018-03-07 JP JP2019553394A patent/JP7114624B2/en active Active
- 2018-03-07 BR BR112019018231-4A patent/BR112019018231A2/en active Search and Examination
- 2018-03-07 SG SG11201907929YA patent/SG11201907929YA/en unknown
- 2018-03-09 TW TW107107993A patent/TWI754020B/en active
- 2018-03-27 AR ARP180100749A patent/AR111264A1/en active IP Right Grant
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AR111264A1 (en) | 2019-06-19 |
ES2876208T3 (en) | 2021-11-12 |
TWI754020B (en) | 2022-02-01 |
MX2019011462A (en) | 2019-11-01 |
CN110461756A (en) | 2019-11-15 |
CN110461756B (en) | 2021-01-08 |
KR20190132393A (en) | 2019-11-27 |
JP2020512249A (en) | 2020-04-23 |
PL3601138T3 (en) | 2021-09-20 |
CA3055472A1 (en) | 2018-10-04 |
US20210276831A1 (en) | 2021-09-09 |
RU2019134213A (en) | 2021-04-28 |
WO2018177708A1 (en) | 2018-10-04 |
TW201840460A (en) | 2018-11-16 |
JP7114624B2 (en) | 2022-08-08 |
AU2018242117A1 (en) | 2019-10-10 |
RU2754023C2 (en) | 2021-08-25 |
AU2018242117B2 (en) | 2021-04-01 |
US11161717B2 (en) | 2021-11-02 |
EP3601138B1 (en) | 2021-05-05 |
KR102407553B1 (en) | 2022-06-10 |
SG11201907929YA (en) | 2019-09-27 |
RU2019134213A3 (en) | 2021-06-23 |
BR112019018231A2 (en) | 2020-06-23 |
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