JP2017202917A - Terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an abnormal location of a rope to be easily confirmed without placing a burden on a maintenance man.SOLUTION: A terminal device 30 related to one embodiment comprises a function capable of wirelessly communicating with an elevator control device having a position of a car when an abnormal location of a rope wound around a hoist is detected by a detector, as an abnormality detection position. The portable terminal 30 comprises: an abnormality detection position acquisition part 33a acquiring an abnormality detection position from the elevator control device; a visible position part 33b for setting an installation position of a detector as a reference position and calculating a position where the abnormal location of the rope can be viewed in a state of a maintenance man boarding on the car based the reference position and the abnormality detection position; and an operation instruction part 33c for issuing an operation instruction to the elevator control device and moving the car to the position calculated.SELECTED DRAWING: Figure 5

Description

  Embodiments of the present invention relate to a terminal device possessed by maintenance personnel who perform maintenance and inspection of an elevator, and an elevator rope diagnosis system for diagnosing the state of a rope that raises and lowers a passenger car.

  Wire ropes are used for elevator cars. This wire rope is formed by twisting a plurality of copper wires, and gradually breaks due to friction or fatigue. For this reason, it is necessary to periodically check the state of the rope using a rope tester.

  For example, in the rope inspection, the car is operated with the rope tester in contact with the rope wound around the hoisting machine in the machine room, and the waveform signal that is sequentially output from the rope tester along with the movement of the rope during the operation. This is done by checking on the monitor screen.

  Here, for example, a method is generally employed in which a marking device is used to mark a portion where the waveform signal of the rope tester is abnormal, and a maintenance staff later visually confirms the portion where the mark is attached.

JP 2009-249117 A JP 2002-362847 A

  However, the method for marking the rope requires a dedicated marking device. In addition, the mark attached to the rope may be thinned by friction during operation, or may be rubbed and adhered to other places, so that it is difficult for maintenance personnel to check the abnormal places later. In particular, when a maintenance person gets on the car and visually checks the state of the rope, the car has to be operated while searching for the mark, which takes time and effort.

  The problem to be solved by the present invention is to provide a terminal device and an elevator rope diagnosis system that can easily check an abnormal portion of a rope without placing a burden on maintenance personnel.

  A terminal device according to an embodiment has a function capable of wirelessly communicating with an elevator control device having a position of a car as an abnormality detection position when an abnormal portion of a rope wound around a hoisting machine is detected by a detector. .

  The terminal device is obtained by the abnormality detection position acquisition means for acquiring the abnormality detection position from the elevator control device, the installation position of the detector as a reference position, and the reference position and the abnormality detection position acquisition means. Based on the abnormality detection position, a viewable position calculating means for calculating a position where a maintenance worker can view the abnormal portion of the rope in a state of being on the car, and an operation instruction is issued to the elevator control device. Driving instruction means for moving the car to the position calculated by the visible position calculating means.

FIG. 1 is a diagram illustrating a configuration of an elevator rope diagnosis system according to an embodiment. FIG. 2 is a block diagram showing a functional configuration of the elevator control apparatus according to the embodiment. FIG. 3 is a diagram illustrating an example of a rope inspection table provided in the elevator control device according to the embodiment. FIG. 4 is a diagram for explaining an abnormality detection position in the embodiment. FIG. 5 is a block diagram showing a functional configuration of the portable terminal held by the maintenance staff in the embodiment. FIG. 6 is a diagram illustrating an example of a personal information table provided in the mobile terminal according to the embodiment. FIG. 7 is a flowchart showing a viewable position calculation process of the mobile terminal in the embodiment. FIG. 8 is a flowchart showing an abnormal point confirmation process of the portable terminal in the embodiment. FIG. 9 is a diagram for explaining a visible position calculation method according to the embodiment. FIG. 10 is a diagram for explaining an abnormal point confirmation method according to the embodiment. FIG. 11 is a view for explaining the relationship between the sheave and the rope of the hoisting machine (in the case of half-turning) in the same embodiment. FIG. 12 is a view for explaining the relationship between the sheave of the hoisting machine and the rope (in the case of one and a half laps) in the embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration of an elevator rope diagnosis system according to an embodiment.

  For example, there is a machine room at the top of the elevator hoistway, and the hoisting machine 11 is installed in the machine room. A plurality of ropes 12 are wound around the hoisting machine 11, and a car 13 is connected to one end of the rope 12. A counterweight 14 is connected to the other end of the rope 12. As a result, as the hoisting machine 11 is driven to rotate, the car 12 and the counterweight 14 are lifted and lowered in a slidable manner via the rope 12.

  A rotation detector 15 called a “pulse generator” is provided on the motor shaft of the hoisting machine 11. The rotation detector 15 outputs a pulse signal to the elevator control device 20 in synchronization with the rotation of the hoisting machine 11. The elevator control device 20 is configured by a computer including a CPU, a ROM, a RAM, and the like, and performs overall control of the elevator including operation control of the car 13 and the like.

  Here, in the machine room, a detector 16 called a “rope tester” is attached to the rope 12 wound around the hoisting machine 11. The detector 16 magnetically detects the breaking state of the rope 12 and outputs a detection signal to the elevator control device 20.

  A maintenance worker inspects the rope 12 while holding the portable terminal 30. The portable terminal 30 has a function necessary for maintenance and a function capable of wireless communication with the elevator control device 20.

  FIG. 2 is a block diagram showing a functional configuration of the elevator control device 20.

  The elevator control device 20 includes a control unit 21, a storage unit 22, and a communication unit 23. The control part 21 consists of CPU and controls the whole elevator control apparatus. The control unit 21 is provided with an operation control unit 21a, a car position detection unit 21b, and an abnormality detection unit 21c as functions for realizing the present system.

  The operation control unit 21a drives the car 13 at a predetermined speed at the time of rope inspection. The car position detector 21b detects the position of the car 13 based on the pulse signal output from the rotation detector 15 during the operation of the car 13 by the operation controller 21a. The abnormality detection unit 21c detects an abnormal part (breaking part) of the rope 12 based on the waveform signal output from the detector 16 attached to the rope 12, and uses the position of the car 13 at that time as the abnormality detection position. get.

  The storage unit 22 includes a memory device such as a ROM and a RAM, and stores various data including a control program for starting the control unit 21. Moreover, the memory | storage part 22 has the property table 22a which memorize | stored the property information of the said elevator, and the rope inspection table 22b which memorize | stored rope inspection information.

  “Property information” is information for maintaining and managing the elevator as one property. For example, in addition to information such as the building address, the number of installed elevators, and the model, the hoist 11, the rope 12, and the car 13. Detailed information (dimensions, etc.) about each part is included. “Rope inspection information” is information indicating a result of inspecting the rope 12 (specifically, a result of diagnosing the state of the rope 12 using the detector 16).

FIG. 3 shows an example of the rope inspection table 22b.
The rope inspection table 22b includes rope inspection information for each of the plurality of ropes 12 (rope 1, rope 2, rope 3...), With one record indicating the presence / absence of abnormality, abnormality detection position, and calendar information (inspection date). Remembered. P1, P2, and P3 in the figure indicate the car position when an abnormal part of the rope 12 is detected. For example, pulse data (when the car 13 is checked downward from the top floor at a low speed for rope inspection operation ( (Count value of pulse signal).

  That is, as shown in FIG. 4, it is assumed that the pulse data when the car 13 is located on the top floor is “0100”. In this state, it is assumed that the car 13 is moved downward from the top floor at a predetermined speed, and an abnormal portion of the rope 12 is detected when the pulse data is “0150”. Assuming that the car position at this time is P1, P1 = "0150" is acquired as the abnormality detection position, and is stored in the rope inspection table 22b together with the calendar information.

  Further, for example, if an abnormal portion of the rope 12 is detected when the pulse data is “0200” and “0300”, P2 = “0200” and P3 = “0300” are acquired as the abnormality detection position, and together with the calendar information It will be stored in the rope inspection table 22b.

  In the example of FIG. 4, the car 13 is driven downward from the top floor during the rope inspection, but the car 13 may be driven upward from the bottom floor.

  The rope inspection information stored in the rope inspection table 22b can be taken into the portable terminal 30 held by the maintenance staff. The portable terminal 30 has functions and communication functions necessary for maintenance and inspection.

  FIG. 5 is a block diagram showing a functional configuration of the portable terminal 30 held by the maintenance staff.

  The portable terminal 30 includes an input unit 31, a display unit 32, a control unit 33, a storage unit 34, a GPS (Global Positioning System) module 35, a communication unit 36, a buzzer generation unit 37, and the like.

  The input unit 31 includes various keys and buttons, and inputs data and gives instructions. The display unit 32 is composed of, for example, an LCD and displays data. For example, a transparent touch panel may be used as the input unit 31, and data input / instruction may be performed on the screen of the display unit 32.

  The control unit 33 includes a CPU, and executes various functions related to maintenance and inspection work by starting a predetermined program. The storage unit 34 includes a memory device such as a ROM or a RAM, and stores various programs 34a. The storage unit 34 is provided with a personal information table 34b. As shown in FIG. 6, personal information including the name, affiliation, terminal, terminal phone number and address of the maintenance staff possessing the portable terminal 30 is registered in the personal information table 34b in advance. This personal information includes information about the height of the maintenance staff as attribute information.

  The GPS module 35 is used to detect the current position. The communication unit 36 is a general-purpose interface that performs data communication with the outside, and enables, for example, long-distance wireless communication and proximity wireless communication. The buzzer generating unit 37 generates a buzzer sound.

  Here, the control unit 33 includes an abnormality detection position acquisition unit 33a, a visually recognizable position calculation unit 33b, a driving instruction unit 33c, a property information acquisition unit 33d, and a notification unit 33e as functions for realizing the system. ing.

  The abnormality detection position acquisition unit 33a acquires the abnormality detection position stored in the rope inspection table 22b from the elevator control device 20. The visually recognizable position calculation unit 33b determines the position where the detector 16 is installed as the reference position, and the maintenance person can check the car 13 based on the reference position and the abnormality detection position obtained by the abnormality detection position acquisition unit 33a. The position where the abnormal part of the rope 12 can be visually observed in a state of being on the top is calculated.

  The driving instruction unit 33c issues a driving instruction to the elevator control device 20, and moves the car 13 to the position calculated by the visually observable position calculating unit 33b.

  The property information acquisition unit 33 d acquires property information from the elevator control device 20. This property information includes information related to the sheave 11a and the rope 12 of the hoisting machine 11, information related to the height of the car 13, and the like.

  The notification unit 33e notifies that an abnormal portion of the rope 12 has approached the range of the maintenance staff's eyes while the car 13 is being moved by the driving instruction unit 33c.

  Next, the operation of this system will be described.

  The inspection of the rope 12 can be performed by slowly moving the car 13 downward from the top floor at a predetermined speed, for example, with the detector 16 in contact with the rope 12 wound around the hoisting machine 11. Do. In fact, since there are a plurality of ropes 12, the same inspection is performed for each of these ropes.

  Along with the movement of the car 13, a waveform signal indicating the leakage magnetic flux of the rope 12 is output from the detector 16 and is taken into the elevator controller 20. In the elevator control device 20, the waveform signal is digitized by A / D conversion and then compared with a threshold value set in advance as a reference value for abnormality determination. As a result of the comparison, if a location where the value of the waveform signal is equal to or greater than the threshold value is detected, that is, if the magnitude of the leakage magnetic flux is equal to or greater than the threshold value, the elevator control device 20 determines that the rope 12 is abnormal.

  On the other hand, the elevator control device 20 counts the pulse signals sequentially output from the rotation detector 15 in synchronization with the rotation of the hoisting machine 11 during operation of the car 13, and detects the current car position from the counted value. doing. Here, when an abnormal part of the rope 12 is detected, the elevator control device 20 acquires the car position at that time as an abnormality detection position, adds the calendar information to the pulse data of the abnormality detection position, and checks the rope. Store in table 22b.

  Next, a method for confirming an abnormal portion of the rope 12 in a state where the maintenance staff gets on the car 13 will be described in detail.

  FIG. 7 is a flowchart showing the visible position calculation process of the mobile terminal 30.

  First, as an initial setting, the maintenance staff operates the portable terminal 30 to predict and input the pulse data of the installation position of the detector 16 from the pulse data on the top floor, and determine the position of this pulse data as the reference position Po (step) S11).

  For example, it is assumed that the hoisting machine 11 is installed in the machine room at the top of the building, and the detector 16 is attached near the installation surface of the hoisting machine 11 at the time of rope inspection. It is assumed that the pulse data when the car 13 is located on the top floor is “0100”. If the pulse data corresponding to the distance from the position on the top floor to the installation surface of the hoisting machine 11 is predicted to be “0020”, for example, “0100” − “0020” = “0080” is used as the pulse data of the reference position Po. Can be determined.

  Subsequently, a link between the portable terminal 30 and the elevator control device 20 is established by a predetermined operation, and the property information of the elevator is acquired from the elevator control device 20 (step S13). The property information includes detailed information (dimensions and the like) related to each part such as the hoisting machine 11, the rope 12, and the car 13. Further, according to the calendar information (inspection date) designated by the maintenance staff, the pulse data of the abnormality detection position to which the corresponding calendar information is attached is acquired from the rope inspection information stored in the rope inspection table 22b of the elevator controller 20 ( Step S13).

  Here, the control unit 33 provided in the portable terminal 30 compares the pulse data at the abnormality detection position with the pulse data at the reference position, and calculates the distance from the abnormality detection position to the reference position (step S14). The control unit 33 calculates the distance from the abnormality detection position to a position where the maintenance staff can visually observe the abnormal portion of the rope on the car 13 by the following equation (1) (step S15).

Y = (X−k) / 2 (1)
Where X: Distance from the abnormality detection position to the reference position
k: Length of rope hoisting machine
Y: Distance from the abnormality detection position to a position where it can be visually observed.

This will be specifically described with reference to FIGS.
Now, as shown in FIG. 9, it is assumed that the installation position of the detector 16 is the reference position Po, and the pulse data of the reference position Po is “0080”. Further, it is assumed that the car position when the detector 16 detects the abnormal portion of the rope 12 is the abnormality detection position Px, and the pulse data of the abnormality detection position Px is “0300”.

  In this case, the distance X from the abnormality detection position Px to the reference position Po is “0300” − “0080” = “0220”. Since “0220” is pulse data, it is necessary to convert the pulse data into distance data based on the driving speed of the car 13. If the hoisting machine 11 is not considered, if the car 13 is moved to a position that is half the distance X (that is, the position of “0220” / 2 = “0110”), the rope 12 is moved to the position of the car 13. The abnormal part of comes. However, in actuality, as shown in FIG. 11 or FIG. 12, the rope 12 is wound around the sheave 11a of the hoisting machine 11, so the length of the rope (rope winding length k) must be taken into consideration. I must.

  Here, the rope wrapping length k is obtained by the following equation (2).

k = 2πr × n (2)
Where π: Pi
r: radius of the sheave 11a
n: Number of rope windings.

  For example, as shown in FIG. 11, when the rope 12 is wound around the upper half of the sheave 11a (in the case of half-turning), k = 2πr × 1/2 = πr. Therefore, Y = (X−πr) / 2 from the above equation (1). In addition, as shown in FIG. 12, when the rope 12 is wound around the sheave 11a only half and half (in the case of half a half), k = 2πr × 3/2 = 3πr. Therefore, Y = (X−3πr) / 2 according to the above equation (1).

  Information regarding the radius r of the sheave 11a and the number of times of rope winding n can be obtained from the property information. Based on these pieces of information, the control unit 33 obtains the length k around which the rope 12 is wound around the sheave 11a, and considers the length k from the abnormality detection position Px to the viewable position Py. The distance Y is calculated.

  The above formula (1) is a case where there is no deflecting sheave. When a deflecting sheave is interposed between the hoist 11 and the counterweight 14, it is necessary to consider the length between them.

  In addition, as shown in FIG. 10, since the maintenance staff is on the car 13, the height h1 of the car 13 and the height h2 of the maintenance staff are taken into consideration, and the maintenance staff rides within the range of the eyes of the maintenance staff. It is preferable to correct the distance Y so that an abnormal part of the car 13 comes. The height h1 of the car 13 is obtained from the property information. The height h2 of the maintenance staff is obtained from the personal information of the maintenance staff stored in the personal information table 34b shown in FIG.

  When the distance Y is obtained in this way, the control unit 21 obtains pulse data of the position of the distance Y, that is, the visible position Py, and stores it in the storage unit 34 (step S16). If there is any other abnormal part (Yes in step S17), the control unit 21 can obtain the pulse data indicating the detection position of the abnormal part from the elevator control device 20 and visually check the abnormal part in the same manner as described above. The pulse data at the position Py is obtained and stored in the storage unit 34 sequentially.

  FIG. 8 is a flowchart showing an abnormal location confirmation process of the mobile terminal 30.

  The maintenance person gets on the car 13 with the portable terminal 30. In this state, pulse data of a visible position (position of distance Y) is read from the storage unit 34 of the portable terminal 30 by a predetermined operation and transmitted to the elevator control device 20 (step S21). And a driving | operation instruction | indication is issued with respect to the elevator control apparatus 20 from the portable terminal 30, and the passenger car 13 is moved to a visually observable position at a predetermined speed (step S22).

  Here, pulse data indicating the current car position is sequentially sent from the elevator control device 20 while the car 13 is moving. The control unit 33 provided in the portable terminal 30 determines whether or not the car 13 has approached the visually observable position based on the pulse data (step S23). When the car 13 approaches a visible position, that is, when an abnormal portion of the rope 12 approaches within the range of the maintenance personnel's line of sight, the control unit 33 activates the buzzer generating unit 37 and emits a buzzer sound ( Step S24). As a result, the maintenance staff can know that the abnormal portion of the rope 12 is approaching, and can find the abnormal portion by gazing at the rope 12 when the car 13 stops at the viewable position.

  As a notification method, in addition to the buzzer sound, for example, a warning message such as “Abnormal point approaching!” Is displayed on the display unit 32 of the portable terminal 30, or a vibration function is activated to notify by vibration. May be used.

  The same applies when there are other abnormal locations (Yes in step S25), and pulse data indicating a viewable position is sent from the portable terminal 30 to the elevator control device 20 to move the car 13. Thereby, even if it does not use special apparatuses, such as a marking apparatus, the abnormal location detected with the detector 16 can be confirmed easily.

  In the above embodiment, the elevator control device 20 takes in the waveform signal output from the detector 16 that is a rope tester and determines whether there is an abnormality. However, the abnormality determination is performed by another controller, and it is determined that there is an abnormality. A configuration may be adopted in which only the pulse data of the car position at the time of being taken is taken into the elevator control device 20.

  According to at least one embodiment described above, it is possible to provide a terminal device and an elevator rope diagnosis system that can easily check an abnormal portion of a rope.

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 11 ... Hoisting machine, 12 ... Rope, 13 ... Ride car, 14 ... Counterweight, 15 ... Rotation detector, 16 ... Detector, 20 ... Elevator control device, 21 ... Control part, 21a ... Operation control part, 21b ... Car position detection unit, 21c ... anomaly detection unit, 22 ... storage unit, 22a ... property table, 22b ... rope inspection table, 23 ... communication unit, 30 ... mobile terminal, 31 ... input unit, 32 ... display unit, 33 ... control Part 33a ... abnormality detection position acquisition part 33b ... viewable position calculation part 33c ... driving instruction part 33d ... property information acquisition part 33e ... notification part 34 ... storage part 34a ... program 34b ... personal information table 35 GPS module 36 Communication unit 37 Buzzer generating unit

Embodiments of the present invention relates to a terminal apparatus having the maintenance personnel to perform maintenance and inspection of the elevator.

The problem to be solved by the present invention is to provide a terminal device that can easily confirm an abnormal portion of a rope without placing a burden on maintenance personnel.

The terminal device is obtained by the abnormality detection position acquisition means for acquiring the abnormality detection position from the elevator control device, the installation position of the detector as a reference position, and the reference position and the abnormality detection position acquisition means. Based on the abnormality detection position, a viewable position calculating means for calculating a position where a maintenance worker can view the abnormal portion of the rope in a state of being on the car, and an operation instruction is issued to the elevator control device. , Property information acquisition for acquiring property information including at least information about the hoisting machine and the rope from the elevator control device, driving instruction means for moving the car to the position calculated by the visible position calculating means And the visible position calculating means winds the rope around the sheave outer periphery of the hoisting machine based on the property information. Seek length being kicked, and calculates a visible position abnormal point of the rope in consideration of its length.

Claims (7)

A terminal device having a function capable of wireless communication with an elevator control device having a position of a car as an abnormality detection position when an abnormal portion of a rope wound around a hoisting machine is detected by a detector,
An abnormality detection position acquisition means for acquiring the abnormality detection position from the elevator control device;
The installation position of the detector is set as a reference position, and the maintenance staff is on the car in a state where the maintenance person gets on the car based on the reference position and the abnormality detection position obtained by the abnormality detection position acquisition means. Visible position calculating means for calculating a position where the abnormal part can be visually observed;
A terminal device comprising: driving instruction means for issuing a driving instruction to the elevator control device and moving the car to a position calculated by the visually observable position calculating means. Comprising property information acquisition means for acquiring property information including information on at least the hoisting machine and the rope from the elevator control device;
The visual position calculation means is
Obtaining the length of the rope wound around the sheave outer periphery of the hoisting machine based on the property information, and calculating the position where the abnormal part of the rope can be visually observed in consideration of the length The terminal device according to claim 1. The above property information includes information about the height of the car,
The visual position calculation means is
The terminal device according to claim 1, wherein a position where an abnormal portion of the rope can be visually observed is calculated in consideration of a height of the car included in the property information. Comprising at least personal information storage means for storing personal information relating to the height of the maintenance personnel;
The visual position calculation means is
The position where the abnormal portion of the rope can be visually observed is calculated in consideration of the height of the car included in the property information and the height of the maintenance staff included in the personal information. Terminal device. The terminal device is
2. The terminal device according to claim 1, further comprising notification means for notifying that an abnormal portion of the rope is approaching within the range of the line of sight of maintenance personnel while the car is being moved by the driving instruction means. The notification means is
The terminal device according to claim 5, wherein a buzzer sound is generated when an abnormal part of the rope approaches within a range of a maintenance person's line of sight. An elevator controller that moves the car up and down via a rope by driving the hoisting machine;
An elevator rope diagnostic system comprising a terminal device capable of wireless communication with the elevator control device,
The elevator control device
Driving control means for driving the car at a predetermined speed when checking the rope;
Car position detecting means for detecting the position of the car during operation of the car by the driving control means;
An abnormality detecting means for detecting an abnormal portion of the rope based on a signal output from a detector attached to the rope;
Storage means for storing, as an abnormality detection position, the position of the car detected by the car position detection means when the abnormality portion of the rope is detected by the abnormality detection means;
The terminal device is
An abnormality detection position acquisition means for acquiring the abnormality detection position from the elevator control device;
The position where the detector is installed is determined as a reference position, and the maintenance staff is on the car based on the reference position and the abnormality detection position obtained by the abnormality detection position acquisition means. Visible position calculating means for calculating a position where the abnormal part of the rope can be visually observed;
An elevator rope diagnosis system comprising driving instruction means for issuing a driving instruction to the elevator control device and moving the car to a position calculated by the visually observable position calculating means.

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