JP2017202905A - Rope diagnostic system of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily confirm an abnormal place of a rope without requiring particular equipment.SOLUTION: A rope diagnostic system of an elevator related to one embodiment, comprises an elevator control device 20 and a rope diagnostic device 30 provided independently from the elevator control device 20. The elevator control device 20 comprises: a signal input section 21 inputting a signal output from the rope diagnostic device 30 during operation of a car; a car position detection section 22 for detecting a position of the car; an abnormality confirmation position acquisition section 23 acquiring the position of the car detected by the car position detection section 22 as an abnormality detection position when an abnormal signal is input from the rope diagnostic device 30 via the signal input section 21; and a diagnosis result storage section 25 for storing the abnormality detection position obtained by the abnormality confirmation position acquisition section 23.SELECTED DRAWING: Figure 2

Description

  Embodiments of the present invention relate to an elevator rope diagnostic 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.

  The problem to be solved by the present invention is to provide an elevator rope diagnosis system that can easily check an abnormal portion of a rope without requiring a special device.

  An elevator rope diagnosis system according to an embodiment includes an elevator control device that moves a car up and down via a rope by driving a hoisting machine, and the elevator control device that is provided independently of the elevator control device. A rope diagnostic device for detecting an abnormal portion of the rope inside.

  The elevator control device includes a signal input means for inputting a signal output from the rope diagnostic device during operation of the car, a car position detecting means for detecting the position of the car, and the signal input means through the signal input means. An abnormality detection position acquisition means for acquiring the position of the car detected by the car position detection means as an abnormality detection position when a signal indicating an abnormal portion of the rope is input from the rope diagnosis device; and the abnormality detection position Storage means for storing the abnormality detection position obtained by the acquisition 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 device and the rope diagnosis device in the same embodiment. FIG. 3 shows an example of the rope diagnosis result stored in the elevator control apparatus 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 block diagram showing the configuration of the monitoring center in the same embodiment. FIG. 7 is a diagram illustrating an example of a management unit provided in the monitoring center according to the embodiment. FIG. 8 is a flowchart for performing an operation at the time of rope inspection in the same embodiment. The left side shows the processing of the rope diagnosis device, and the right side shows the processing of the elevator control device. FIG. 9 is a flowchart showing processing of the mobile terminal 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 13 are wound around the hoisting machine 11, and a car 14 is connected to one end of the rope 13. A counterweight 15 is connected to the other end of the rope 13 via a deflecting sheave 12. As a result, the car 14 and the counterweight 15 are lifted and lowered in a vine manner via the rope 13 as the hoisting machine 11 is driven to rotate.

  Further, a rotation detector 16 called a “pulse generator” is provided on the motor shaft of the hoisting machine 11. The rotation detector 16 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 14 and the like.

  Here, a rope diagnostic device 30 is installed independently of the elevator control device 20. The rope diagnostic device 30 detects an abnormal location (break location) of the rope 13 while moving the car 14 in a predetermined direction. The rope diagnostic device 30 includes a detector 31 called a “rope tester” and a controller 32 that controls the detector 31. The detector 31 magnetically detects the broken state of the rope 13. The controller 32 has a function of determining whether or not the rope 13 is abnormal based on a signal output from the detector 31.

  The elevator control device 20 and the rope diagnosis device 30 are installed in a machine room on the uppermost floor of a building, for example. The maintenance staff enters the machine room, activates the rope diagnostic device 30 by remote control operation, and performs the inspection work of the rope 13.

  FIG. 2 is a block diagram showing functional configurations of the elevator control device 20 and the rope diagnosis device 30.

  The abnormality of the rope 13 is detected by passing the magnetic flux through the rope 13 and measuring the magnitude of the leakage magnetic flux with the detector 31. The controller 32 includes a waveform data acquisition unit 33, an abnormality determination unit 34, a threshold storage unit 35, and a signal output unit 36.

  The waveform data acquisition unit 33 captures the waveform data of the leakage magnetic flux measured by the detector 31 by A / D conversion. The abnormality determination unit 34 determines the presence / absence of an abnormality by comparing the value of the waveform data obtained by the waveform data acquisition unit 33 and the threshold value stored in the threshold value storage unit 35. The signal output unit 36 outputs a signal output as a determination result from the abnormality determination unit 34 to the elevator control device 20.

  On the other hand, the elevator control device 20 is provided with a signal input unit 21 for taking in the signal of the rope diagnostic device 30. Further, the elevator control device 20 includes a car position detection unit 22, an abnormality detection position acquisition unit 23, a calendar information acquisition unit 24, and a diagnosis result storage unit 25.

  The car position detection unit 22 counts pulse signals sequentially output from the rotation detector 16 in synchronization with the rotation of the hoisting machine 11 during operation of the car 14, and the position of the car 14 is based on the count value. Is detected. The abnormality detection position acquisition unit 23 detects when an abnormal part (breaking part) of the rope 13 is detected by the rope diagnosis device 30 and a signal indicating the abnormal part is input to the elevator control device 20 through the signal input unit 21. The car position detected by the position detector 22 is acquired as an abnormality detection position.

  The calendar information acquisition unit 24 acquires calendar information including the current date and time using an RTC (real time clock) not shown. The diagnosis result storage unit 25 adds calendar information to the abnormality detection position obtained by the abnormality detection position acquisition unit 23 and stores it.

FIG. 3 shows an example of the rope diagnosis result stored in the elevator control device 20.
The diagnosis result storage unit 25 of the elevator control device 20 records one record of the presence / absence, abnormality detection position, and calendar information (inspection date) of each of the plurality of ropes 13 (rope 1, rope 2, rope 3...). The rope inspection information is stored as a rope diagnosis result. P1, P2, and P3 in the figure indicate the car position when an abnormal portion of the rope 13 is detected. For example, pulse data (when the car 14 is rope-inspected at a low speed downward from the top floor) (Count value of pulse signal).

  That is, as shown in FIG. 4, it is assumed that the pulse data when the car 14 is located on the top floor is “0100”. In this state, it is assumed that the car 14 is moved downward from the top floor at a predetermined speed, and an abnormal portion of the rope 13 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 diagnosis result storage unit 25 together with the calendar information.

  Further, for example, if an abnormal part of the rope 13 is detected when the pulse data is “0200” and “0300”, P2 = “0200” and P3 = “0300” are acquired as the abnormality detection positions, and together with the calendar information It is stored in the diagnosis result storage unit 25.

  In the example of FIG. 4, the car 14 is driven downward from the top floor at the time of the rope inspection, but the car 14 may be driven upward from the bottom floor.

  As shown in FIG. 2, the rope diagnosis result stored in the diagnosis result storage unit 25 can be taken into the portable terminal 40 held by the maintenance staff. The portable terminal 40 has functions necessary for maintenance and inspection and a wireless communication function. The terminal device 40 acquires a rope diagnosis result by wireless communication from the elevator control device 20 via the dedicated communication device 41, and sends the acquired rope diagnosis result to an external monitoring center 42 via a communication network (not shown). Send.

  The monitoring center 42 manages the rope diagnosis result sent from the mobile terminal 40 for each property. This monitoring center 42 is located in a remote place and remotely monitors various signals (operating state information) sent from an elevator of each property via a communication network (not shown) on a monitoring screen. ing.

  FIG. 5 is a block diagram showing a functional configuration of the portable terminal 40 held by the maintenance staff.

  The portable terminal 40 includes an input unit 51, a display unit 52, a control unit 53, a storage unit 54, a GPS (Global Positioning System) module 55, a communication unit 56, and the like.

  The input unit 51 includes various keys and buttons, and inputs data and gives instructions. The display unit 52 includes, for example, an LCD, and displays data. For example, a transparent touch panel may be used as the input unit 51, and data input / instruction may be performed on the screen of the display unit 52.

  The control unit 53 includes a CPU, and executes various functions related to maintenance and inspection work by starting a predetermined program. The storage unit 54 includes a memory device such as a ROM or a RAM, and stores various programs. The storage unit 54 also stores maintenance staff information including the name and affiliation of the maintenance staff who possesses the portable terminal 40 in advance.

  The GPS module 55 is used to detect the current position. The communication unit 56 is a general-purpose interface that performs data communication with the outside, and enables long-distance wireless communication and proximity wireless communication, for example.

  FIG. 6 is a block diagram showing the configuration of the monitoring center 42.

  In the monitoring center 42, a Web server 61 and a plurality of PCs 62a, 62b, 62c... Are installed. The Web server 61 exists as a control device of the monitoring center 42 and is connected to the portable terminal 40 shown in FIG. 1 through a communication network.

  The PCs 62a, 62b, 62c... Are connected to the Web server 61 via a communication line 63 such as a LAN (Local Area Network). The PCs 62a, 62b, 62c... Are terminal devices used by each operator as a monitoring console.

  Here, the web server 61 is provided with a management unit 61a for managing the rope diagnosis result sent from the portable terminal 40 for each property.

FIG. 7 shows an example of the management unit 61a.
The management unit 61a stores an identification number (property ID) of each property, an elevator model installed in each property, and information on a rope diagnosis result. The rope diagnosis result includes the presence / absence of an abnormality, an abnormality detection position, and calendar information, and is sequentially accumulated for each rope inspection.

Next, the operation of this system will be described.
FIG. 8 is a flowchart for the operation of the system at the time of rope inspection. The left side shows the processing of the rope diagnosis device 30 and the right side shows the processing of the elevator control device 20.

  The rope 13 is inspected by, for example, slowly moving the car 14 downward at a predetermined speed from the top floor while the detector 31 is in contact with the rope 13 wound around the hoisting machine 11. Do. Actually, since there are a plurality of ropes 13, the same inspection is performed for each of these ropes.

  The maintenance staff operates a remote controller (not shown) attached to the rope diagnosis device 30 to set the diagnosis mode (step A11). As a result, the waveform data indicating the leakage magnetic flux of the rope 13 is output from the detector 31 of the rope diagnostic device 30 with the movement of the car 14, and is taken into the controller 32 (step A12).

  The waveform data captured by the controller 32 is digitized by A / D conversion and then compared with a threshold value set in advance as a reference value for abnormality determination (step A13). As a result of the comparison, when a location where the value of the waveform data is greater than or equal to the threshold value is detected, that is, when the magnitude of the leakage magnetic flux is equal to or greater than the threshold value (Yes in step A13), it is determined that there is an abnormality and An abnormal signal is output from the device 30 to the elevator control device 20 (step A14).

  The same process is repeated until a diagnosis end instruction is input to the controller 32, and if a location greater than the threshold is detected during that time, an abnormal signal is output to the elevator control device 20 (step A15).

  On the other hand, the elevator control device 20 counts pulse signals sequentially output from the rotation detector 16 in synchronization with the rotation of the hoisting machine 11 during operation of the car 14, and detects the current car position from the count value. (Step B11).

  Here, when an abnormal signal is output from the rope diagnosis device 30 and is input to the elevator control device 20 (step B12), the elevator control device 20 acquires the car position at that time as an abnormality detection position (step B13). . The elevator control device 20 acquires calendar information including the current date and time (step B14), attaches the calendar information to the abnormality detection position, and stores it in the diagnosis result storage unit 25 (step B15). That is, as described with reference to FIG. 4, if an abnormal portion of the rope 13 is detected when the pulse data is “0150”, the car position P1 = “0150” at this time is acquired as the abnormality detection position, and the calendar The information is stored in the diagnosis result storage unit 25 together with the information.

  Thus, the car position at that time is stored as an abnormality detection position at the timing when an abnormality signal is input from the rope diagnosis apparatus 30 to the elevator control apparatus 20 during operation of the car 14. As a result, even if a special device such as a marking device is not used, if the car 14 is moved based on the pulse data stored as the abnormality detection position, the maintenance staff can detect the abnormality of the rope 13 at the installation position of the detector 31. A location (a fracture location) can be visually confirmed.

  Moreover, since the calendar information when the rope abnormality is detected is attached to the abnormality detection position stored in the elevator control device 20, the rope replacement time can be estimated from the calendar information.

  Here, in this system, the elevator control device 20 and the rope diagnostic device 30 are independent of each other, and abnormality determination processing including threshold comparison is executed only in the rope diagnostic device 30 and only the resulting signal is transmitted to the elevator. The configuration is such that the control device 20 loads the data. Therefore, it is not necessary to perform the abnormality determination process on the elevator control device 20 side, and it is only necessary to store the abnormality detection position in association with the car position. Therefore, there is an advantage that the existing control device can be used as it is with less processing load. is there.

  The rope diagnosis result stored in the elevator control device 20 can be taken into the portable terminal 40 owned by the maintenance staff, and further sent to the external monitoring center 42. The process at this time is shown in FIG.

  FIG. 9 is a flowchart showing the processing of the portable terminal 40 of this system.

  Assume that a communication device 41, which is a dedicated communication device, is connected to the elevator control device 20. A link between the portable terminal 40 and the communication device 41 is established by a predetermined operation, and the portable terminal 40 requests the elevator control device 20 for a diagnosis result of an arbitrary inspection date (step C11). In response to this request, the rope diagnosis result (existence / absence of abnormality, abnormality detection position, calendar information) of the corresponding inspection date is read from the diagnosis result storage unit 25 of the elevator control device 20 and is carried via the communication device 41. It is sent to the terminal 40 (step C12).

  The portable terminal 40 receives the rope diagnosis result sent from the elevator control device 20, and stores it in the storage unit 54 shown in FIG. 5 (step C13). In this case, the portable terminal 40 acquires property information together with the rope diagnosis result from the elevator control device 20, and stores it in the storage unit 54 in association with the rope diagnosis result. The property information includes information such as the address of the property, the number of elevators installed, and the model.

  Further, the portable terminal 40 transmits the rope diagnosis result (abnormality presence / absence, abnormality detection position, calendar information) acquired at this time to the external monitoring center 42 via the communication network (not shown) together with the property information (step C14). . Thereby, in the monitoring center 42, the rope diagnosis result sent from the portable terminal 40 is memorize | stored in the management part 61a, and is managed for every property.

  In the above-described embodiment, the rope diagnosis result stored in the elevator control device 20 is once taken into the portable terminal 40 and then sent to the monitoring center 42. However, the rope diagnosis result from the elevator control device 20 is sent to the communication network. Alternatively, it may be sent directly to the monitoring center 42.

  As described above, the maintenance personnel can take the rope diagnosis result on the screen of the portable terminal 40 by taking the rope diagnosis result (abnormality presence / absence, abnormality detection position, calendar information) stored in the elevator control device 20 into the portable terminal 40. Check and take appropriate action. Furthermore, an inspection report or the like can be easily created using the rope diagnosis result taken into the portable terminal 40.

  Moreover, by sending the rope diagnosis result taken into the portable terminal 40 to the monitoring center 42, the monitoring center 42 can centrally manage the state of the rope 13 of each property as shown in FIG. In this way, the monitoring center 42 side estimates the rope life from the history of the rope diagnosis result of each property, and if there is a property that is close to replacement, take measures such as notifying maintenance personnel who have jurisdiction over the property. Can do.

  According to at least one embodiment described above, it is possible to provide an elevator rope diagnosis system that can easily check an abnormal portion of a rope without requiring a special device.

  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 ... Warp sheave, 13 ... Rope, 14 ... Ride car, 15 ... Counterweight, 16 ... Rotation detector, 20 ... Elevator control device, 21 ... Signal input part, 22 ... Car position detection part, DESCRIPTION OF SYMBOLS 23 ... Abnormal detection position acquisition part, 24 ... Calendar information acquisition part, 25 ... Diagnosis result memory | storage part, 30 ... Rope diagnostic apparatus, 31 ... Detector, 32 ... Controller, 33 ... Waveform data acquisition part, 34 ... Abnormality determination part 35 ... Threshold storage unit 40 ... Mobile terminal 41 ... Communication device 42 ... Monitoring center 51 ... Input unit 52 ... Display unit 53 ... Control unit 54 ... Storage unit 55 ... GPS 56 ... Communication unit 61 ... Web server, 61a ... management unit, 62a, 62b, 62c ... PC.

An exemplary elevator rope diagnostic system according to the embodiment includes an elevator control device for vertical movement of the car through the rope by the driving of the hoisting machine, the the elevator controller provided independently, breaking the state of the rope And a rope diagnostic device comprising a controller for detecting the presence or absence of an abnormality of the rope based on a signal output from the detector .

The elevator control device includes signal input means for inputting a signal output from the controller of the rope diagnostic device during operation of the car, car position detecting means for detecting the position of the car, and the signal. An abnormality detection position acquisition means for acquiring the position of the car detected by the car position detection means as an abnormality detection position when a signal indicating an abnormal portion of the rope is input from the rope diagnostic device through the input means; Storage means for storing the abnormality detection position obtained by the abnormality detection position acquisition means.

Claims (5)

An elevator controller that moves the car up and down via a rope by driving the hoisting machine;
Provided independently from this elevator control device, and equipped with a rope diagnostic device that detects an abnormal portion of the rope during operation of the car,
The elevator control device
Signal input means for inputting a signal output from the rope diagnostic device during operation of the car;
Car position detecting means for detecting the position of the car;
An abnormality detection position acquisition means for acquiring, as an abnormality detection position, the position of the car detected by the car position detection means when an abnormality signal is input from the rope diagnostic device through the signal input means;
An elevator rope diagnosis system comprising: storage means for storing an abnormality detection position obtained by the abnormality detection position acquisition means. The elevator control device
Calendar information acquisition means for acquiring calendar information including the current date and time,
2. The elevator rope diagnosis system according to claim 1, wherein calendar information obtained by the calendar information acquisition means is attached to the abnormality detection position obtained by the calendar information acquisition means and stored in the storage means.   The elevator rope according to claim 2, further comprising a communication device that transmits the abnormality detection position and the calendar information stored in the storage means of the elevator control device to the outside as a rope diagnosis result of the property. Diagnostic system. The communication device is
4. The elevator rope according to claim 3, wherein the abnormality detection position and the calendar information stored in the storage means of the elevator control device are transmitted as a rope diagnosis result of the property to a terminal device held by a maintenance staff. Diagnostic system. The communication device is
Transmitting the abnormality detection position and the calendar information stored in the storage means of the elevator control device to a monitoring center via a communication network as a rope diagnosis result of the property,
The monitoring center
The elevator rope diagnosis system according to claim 3, further comprising management means for managing the rope diagnosis result for each property.

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