JP6439673B2 - Maintenance equipment and maintenance system - Google Patents

Description

  The present invention relates to an elevator maintenance device and a maintenance system.

  The following Patent Document 1 describes a system including an identification body provided in a machine room of an elevator, and a portable terminal that transmits information including identification information of the identification body and reading date and time of the identification information to a server. Yes.

Japanese Patent Laying-Open No. 2015-20836

  According to the system described in Patent Document 1, it can be determined that the elevator maintenance work has been performed on the reading date and time transmitted from the portable terminal to the server. However, for example, when the information transmitted to the server is falsified, it cannot be proved whether the maintenance work is actually performed.

  The present invention has been made to solve the above problems. The purpose is to provide a maintenance device and a maintenance system that can prove that the elevator maintenance work has been performed.

The maintenance device according to the present invention includes a determination unit that determines whether or not the operation mode of the elevator is the maintenance mode, site information that identifies the elevator , temporarily valid identification information, and the operation mode of the elevator. When it is determined that the operation mode of the elevator is no longer the maintenance mode by the information generation unit that generates a barcode symbol storing work content information based on the operation of the elevator performed while in the mode, and the determination unit, A display control unit that displays the barcode symbol generated by the information generation unit on a display unit provided in the elevator.

  A maintenance system according to the present invention includes the maintenance device, a maintenance terminal that acquires information stored in the barcode symbol by reading the barcode symbol generated by the information generation unit, and a maintenance terminal And an information center for collating the identification information acquired.

  In the maintenance device according to the present invention, the display control unit displays the barcode symbol generated by the information generation unit on the display unit provided in the elevator when it is determined that the operation mode of the elevator is not the maintenance mode. Let For this reason, according to this invention, it can prove that the maintenance work of the elevator was implemented.

It is a block diagram which shows an example of the system for a maintenance in Embodiment 1 of this invention. It is a block diagram which shows an example of the control apparatus and display part in Embodiment 1 of this invention. It is a schematic diagram which shows an example of the maintenance terminal in Embodiment 1 of this invention. It is a flowchart which shows the operation example of the apparatus for a maintenance in Embodiment 1 of this invention.

  The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram illustrating an example of a maintenance system according to the first embodiment. FIG. 1 shows, as an example, a case where a lift maintenance system is applied to an elevator.

  As shown in FIG. 1, the elevator includes a car 1, a counterweight 2, a hoisting machine 3, and a rope 4. The car 1 and the counterweight 2 are located inside a hoistway 5 provided in a building (not shown). The hoisting machine 3 is provided, for example, in a machine room (not shown). The rope 4 is wound around the hoisting machine 3. The car 1 and the counterweight 2 are suspended by a rope 4. The car 1 and the counterweight 2 move up and down when the hoisting machine 3 is driven. A display unit 6 is provided inside the car 1. The display unit 6 is, for example, a liquid crystal display provided on an operation panel in the car.

  As shown in FIG. 1, the maintenance system includes a control device 7, a maintenance terminal 8, and an information center 9. The control device 7 is provided in a building equipped with an elevator, for example. The control device 7 is provided for each elevator, for example. The control device 7 is electrically connected to the hoisting machine 3, the display unit 6, and the like. The maintenance terminal 8 is, for example, a device carried by an elevator maintenance worker. The maintenance terminal 8 is, for example, a smartphone, a notebook computer, a tablet terminal, or the like. The maintenance terminal 8 has, for example, a communication function and a camera function. The information center 9 is provided in a building different from the building in which the control device 7 is provided, for example. The information center 9 is, for example, a management server provided in an elevator management company.

  The maintenance terminal 8 can communicate with the control device 7 and the information center 9. The information center 9 can communicate with the control device 7. Communication between the maintenance terminal 8 and the control device 7 may be wired communication or wireless communication. Communication between the maintenance terminal 8 and the information center 9 may be wired communication or wireless communication. Communication between the information center 9 and the control device 7 may be wired communication or wireless communication.

  FIG. 2 is a configuration diagram illustrating an example of the control device and the display unit in the first embodiment. FIG. 2 shows an example in which the display unit 6 is composed of a plurality of devices. FIG. 2 shows an example in which the control device 7 is composed of a plurality of devices.

  As shown in FIG. 2, the display unit 6 includes a product display 10 and a maintenance display 11. The product display 10 is used for displaying, for example, the number of floors in which the car 1 is located and the moving direction of the car 1. The maintenance display 11 is used, for example, to display an image of a security camera (not shown) provided in the car 1.

  As shown in FIG. 2, the control device 7 includes a control panel 12 and maintenance equipment 13. The maintenance device 13 includes a determination unit 14, a maintenance operation state storage unit 15, an information generation unit 16, and a display control unit 17. The control panel 12 is electrically connected to the product display 10, the hoisting machine 3, and the like. The maintenance device 13 is electrically connected to the control panel 12 and the maintenance display 11. The maintenance terminal 8 can communicate with at least the maintenance device 13. The maintenance terminal 8 may be communicable with the control panel 12.

  The operation mode of the elevator includes a normal mode and a maintenance mode. Switching to the maintenance mode is performed, for example, by turning on a maintenance switch (not shown). The maintenance switch is provided on the control panel 12 or the maintenance device 13, for example. Switching to the maintenance mode may be performed, for example, by operating the maintenance terminal 8 connected to the maintenance device 13. When the operation mode is the maintenance mode, the control device 7 does not issue a notification indicating an abnormality even when an elevator operation that is determined to be abnormal is detected. That is, when the operation mode is switched to the maintenance mode, notification to the information center 9 indicating an abnormality is suppressed.

  The control panel 12 operates the elevator hoist 3 and the product display 10. That is, the control panel 12 controls the operation of the elevator.

  At the start of the maintenance work, the maintenance worker switches the operation mode to the maintenance mode, for example, by the above-described maintenance switch switching operation. For example, the maintenance worker connects a maintenance operation switch (not shown) to the control panel 12, operates the maintenance operation switch to control the control panel 12, and operates the hoisting machine 3 to perform various maintenance operations. To implement. The maintenance worker connects the maintenance terminal 8 to the maintenance device 13 and operates the hoisting machine 3 and the like by operating the maintenance terminal 8 and controlling the control panel 12 to perform various maintenance operations. Perform the work. The maintenance worker controls the control panel 12 by operating, for example, a maintenance operation switch (not shown) provided in the car 1 or a maintenance operation switch (not shown) provided on the top of the car 1. The hoisting machine 3 and the like are operated to perform various maintenance operations. The determination unit 14 determines whether or not the operation mode of the elevator is the maintenance mode. The maintenance operation state storage unit 15 stores the operation state of the control panel 12 after the operation mode is switched to the maintenance mode as work content information.

  The information generation unit 16 generates a barcode symbol storing maintenance history information. The barcode symbol generated by the information generation unit 16 includes a one-dimensional barcode and a two-dimensional code. In the first embodiment, the barcode symbol generated by the information generation unit 16 is a two-dimensional code such as a QR code (registered trademark). The maintenance history information includes, for example, site information, temporarily valid identification information, and work content information.

  The on-site information is information that identifies an elevator whose operation is controlled by the control panel 12. For example, an access number or a serial number is used as the field information. The access number is a combination of the building number indicating the building where the elevator is installed and the number of the elevator in the building. The serial number is a unique manufacturing number that the control panel 12 has.

  The temporarily valid identification information is, for example, an ID code or an encryption key that is updated at predetermined intervals. The predetermined period set in advance is, for example, one month or three months. The predetermined period set in advance may be set, for example, in accordance with the interval of the scheduled date for performing the maintenance work of the elevator. The temporarily valid identification information may include, for example, information indicating an update date or a month to which the update date belongs. In the first embodiment, the temporarily valid identification information is an ID code generated by the information center 9 or the information generation unit 16. The ID code is, for example, a combination of alphanumeric characters and symbols randomly, and is a character array that is difficult to guess.

  When the ID code is generated by the information center 9, the information center 9 transmits the updated ID code to the maintenance device 13 every predetermined period set in advance. In this case, for example, the information generation unit 16 discards the old ID code held until a new ID code is received from the information center 9. Moreover, the information generation part 16 may perform the process which makes it not use, for example, discarding an old ID code. The information generation unit 16 generates a barcode symbol storing the newest ID code received from the information center 9 regardless of the handling of the old ID code.

  When the ID code is generated by the information generation unit 16, the information generation unit 16 updates the ID code every predetermined period set in advance. In this case, for example, the information generation unit 16 discards the old ID code held until a new ID code is generated. Moreover, the information generation part 16 may perform the process which makes it not use, for example, discarding an old ID code. The information generation unit 16 generates a bar code symbol storing the newest ID code generated regardless of the handling of the old ID code.

  The work content information is information based on the operation of the elevator by the maintenance work performed by the maintenance worker while the operation mode is the maintenance mode. That is, the work content information indicates the content of the maintenance work estimated by the information generation unit 16 based on the operation state of the control panel 12 stored in the maintenance operation state storage unit 15 during the maintenance work. Specifically, the operation state of the control panel 12 stored in the maintenance operation state storage unit 15 includes turning off the power, turning on the power, raising and lowering the car in the manual mode, opening and closing the door, and transition to the special mode for maintenance. It is shown. The maintenance special mode is, for example, an indicator inspection mode. The work content information includes, for example, a work time for each estimated maintenance work. A standard for estimating the content of maintenance work is set in advance. For example, the information generation unit 16 estimates that the brake inspection has been performed based on a record in which the state where the power of the elevator is cut off continues for 30 minutes or more.

  The display control unit 17 controls the operation of the maintenance display 11. The display control unit 17 causes the maintenance display 11 to display the barcode symbol generated by the information generation unit 16 when the determination unit 14 determines that the operation mode of the elevator is not the maintenance mode. For example, as soon as the generation of the barcode symbol is completed, the display control unit 17 starts displaying the barcode symbol. For example, the display control unit 17 ends the display of the barcode symbol when a predetermined time elapses after the display of the barcode symbol is started. The fixed time for displaying the barcode symbol is, for example, about 1 to 3 minutes. Even before a certain period of time until the bar code symbol is displayed, the display control unit 17 performs the bar control based on, for example, an operation on the maintenance device 13 or the maintenance terminal 8 connected to the maintenance device 13. The display of the code symbol may be terminated.

  The maintenance terminal 8 has a code reading function for reading a bar code symbol using a camera function or the like. The maintenance terminal 8 can acquire the maintenance history information stored in the barcode symbol by reading the barcode symbol generated by the information generation unit 16. The maintenance worker causes the maintenance terminal 8 to acquire maintenance history information by reading the barcode symbol displayed on the maintenance display 11 after switching the operation mode of the elevator from the maintenance mode to the normal mode.

  FIG. 3 is a schematic diagram illustrating an example of the maintenance terminal according to the first embodiment. FIG. 3 shows an example of a state in which the barcode symbol displayed on the maintenance display 11 is read by the smartphone which is the maintenance terminal 8.

  As shown in FIG. 3, the maintenance terminal 8 has a display screen 8a formed of liquid crystal or the like. The maintenance terminal 8 displays information acquired from the barcode symbol on the display screen 8a. The information displayed on the display screen 8a is represented by at least one of characters and images, for example. In the example shown in FIG. 3, an access number “1234567-001” is displayed on the display screen 8a as the field information. In addition, information indicating the estimated maintenance work and the work time for each maintenance work is displayed as the work content information. However, information corresponding to the ID code is not displayed on the display screen 8a. That is, the maintenance terminal 8 displays on-site information and work content information on the display screen 8a out of the maintenance history information acquired from the barcode symbol, and does not display temporarily valid identification information on the display screen 8a. The maintenance worker confirms the site information and work content information displayed on the display screen 8a.

  The maintenance terminal 8 has a function of editing work content information in the maintenance history information acquired from the barcode symbol. The maintenance worker can edit the work content information by operating the maintenance terminal 8. For example, the maintenance worker corrects the estimated maintenance work that is different from the work actually performed. The maintenance terminal 8 stores which part of the work content information has been corrected. The maintenance terminal 8 does not have a function of editing maintenance history information acquired from the bar code symbol that is not work content information.

  The maintenance worker causes the maintenance terminal 8 to communicate with the information center 9 after completing the maintenance work. The maintenance terminal 8 transmits the maintenance history information acquired from the barcode symbol displayed on the maintenance display 11 to the information center 9. As a result, the visit history to the site and the work content to be subjected to the maintenance work are registered in the information center 9.

  The information center 9 collates the ID code included in the maintenance history information. The ID code collation is, for example, determining whether or not the ID code matches that generated by the information center 9 and transmitted to the maintenance device 13. The ID code collation is, for example, determining whether or not the ID code is generated by the information generation unit 16. For example, the information center 9 stores the ID code collation result in association with the maintenance history information including the ID code. If the ID code is valid, the ID code verification result is, for example, information indicating whether the ID code is the latest, information indicating the day or month when the ID code was generated, and Information indicating the day or month when the ID code is transmitted from the information center 9 may be included.

  FIG. 4 is a flowchart showing an operation example of the maintenance device in the first embodiment.

  When the maintenance mode is started (step S101), the maintenance operation state storage unit 15 starts recording the operation of the elevator (step S102). The maintenance operation state storage unit 15 temporarily stores the elevator operation during the maintenance mode (step S103). The determination unit 14 determines whether or not the maintenance mode has ended (step S104). When it is determined in step S104 that the maintenance mode has not ended, the maintenance operation state storage unit 15 repeats the process of step S103.

  When it is determined in step S104 that the maintenance mode has been completed, the information generation unit 16 estimates the work content from the operation record data temporarily stored in the maintenance operation state storage unit 15 (step S105), so that the work content information is obtained. Is generated. The information generation unit 16 adds site information and an ID code to the work content information (steps S106 and S107). Thereby, maintenance history information is generated in step S107. The information generation unit 16 generates a barcode symbol by encoding the generated maintenance history information (step S108).

  The display control unit 17 starts displaying the barcode symbol on the maintenance display 11 (step S109). The display control unit 17 determines whether or not a certain time has elapsed from the process of step S109 (step S110). When it is determined in step S110 that the predetermined time has not elapsed, the display control unit 17 repeats the process of step S110. When it is determined in step S110 that the predetermined time has elapsed, the display control unit 17 ends the display of the barcode symbol on the maintenance display 11 (step S111).

  In the first embodiment, the information generation unit 16 generates a bar code symbol that stores on-site information that identifies an elevator and maintenance history information that includes a temporarily valid ID code. When the determination unit 14 determines that the operation mode of the elevator is no longer the maintenance mode, the display control unit 17 displays the barcode symbol generated by the information generation unit 16 on the display unit 6 provided in the elevator. The maintenance terminal 8 acquires the information stored in the barcode symbol by reading the barcode symbol generated by the information generation unit 16. The information center 9 collates the ID code acquired by the maintenance terminal 8. That is, according to the first embodiment, it is necessary to read the bar code symbol displayed on the display unit 6 in order to obtain regular maintenance history information including the ID code. For this reason, the maintenance worker cannot obtain the maintenance history information unless he / she visits the site where the maintenance work is actually performed. As a result, it can be proved that the maintenance work for the elevator has been carried out.

  In the first embodiment, when the ID code is generated by the information generation unit 16, the information generation unit 16 updates the ID code, for example, every predetermined period. When the ID code is generated by the information center 9, the information center 9 transmits the updated ID code to the information generation unit 16, for example, every predetermined period. In this case, the information generation unit 16 generates a barcode symbol that stores the newest ID code received from the information center 9. For this reason, according to the first embodiment, it is possible to specify the time when the maintenance work is performed based on the ID code included in the maintenance history information. As a result, it can be proved that the maintenance work of the elevator was carried out as scheduled.

  In the first embodiment, the information generation unit 16 generates a barcode symbol storing maintenance history information including work content information based on the operation of the elevator performed while the operation mode of the elevator is the maintenance mode. The maintenance terminal 8 has a function of editing work content information out of information acquired by reading the barcode symbol generated by the information generation unit 16. The maintenance terminal 8 does not have a function of editing information that is not work content information among information acquired by reading the barcode symbol generated by the information generation unit 16. For this reason, according to the first embodiment, the maintenance worker can register the accurate work content in the information center 9 only by correcting an erroneous part of the estimated work content. As a result, it is possible to prevent forgetting to record the work content and to reduce the burden on the maintenance worker. Further, according to the first embodiment, the maintenance worker cannot edit anything other than the work content information. As a result, for example, it is possible to prevent the site information, ID code, and the like from being changed.

  In the first embodiment, the temporarily valid identification information may be updated every time the operation mode of the elevator is not the maintenance mode, for example. That is, the ID code may be updated every time the elevator maintenance work is performed. In this case, the ID code may be automatically generated based on, for example, information indicating the maintenance work implementation date. When the ID code is generated by the information center 9, the information center 9 is updated when the operation mode is switched from the maintenance mode based on the information received from the control device 7 or the maintenance terminal 8, for example. The ID code thus transmitted is transmitted to the information generator 16. When the ID code is generated by the information generation unit 16, the information generation unit 16 updates the ID code when the operation mode is switched from the maintenance mode, for example.

  In the first embodiment, the display unit 6 and the control device 7 are composed of a plurality of devices. However, the display unit 6 may be one in which the product display 10 and the maintenance display 11 are integrally formed. The control device 7 may be one in which the control panel 12 and the maintenance device 13 are integrally formed. Even in these cases, the same effect can be obtained as long as the display unit 6 and the control device 7 have the functions of the above-described units.

  The maintenance system in the first embodiment may be applied to elevators other than elevators. The maintenance system may be applied to an escalator as long as it has a configuration corresponding to the maintenance device 13 and the maintenance display 11, for example.

  In the first embodiment, the determination unit 14 determines whether or not the operation mode is the maintenance mode. However, the determination may be performed by the maintenance operation state storage unit 15 or the information generation unit 16. . In these cases, the maintenance device 13 may not include the determination unit 14.

DESCRIPTION OF SYMBOLS 1 Car 2 Counterweight 3 Hoisting machine 4 Rope 5 Hoistway 6 Display unit 7 Control device 8 Maintenance terminal 8a Display screen 9 Information center 10 Product display 11 Maintenance display 12 Control panel 13 Maintenance device 14 Judgment unit 15 Maintenance Operation state storage unit 16 Information generation unit 17 Display control unit

Claims (7)

A determination unit that determines whether or not the operation mode of the elevator is the maintenance mode;
Information for generating a bar code symbol storing field information for identifying the elevator , temporarily valid identification information, and work content information based on the operation of the elevator performed while the elevator operation mode is the maintenance mode A generator,
A display control unit for displaying the barcode symbol generated by the information generation unit on the display unit provided in the elevator when the determination unit determines that the operation mode of the elevator is not the maintenance mode;
Maintenance equipment equipped with.   The maintenance device according to claim 1, wherein the information generation unit updates the identification information at predetermined time intervals. The elevator is an elevator,
The maintenance device according to claim 1, wherein the display unit is a maintenance display provided in an elevator car. Maintenance equipment according to claim 1;
A maintenance terminal for acquiring information stored in the barcode symbol by reading the barcode symbol generated by the information generation unit;
An information center for collating the identification information acquired by the maintenance terminal;
System for maintenance. The information center transmits the updated identification information to the information generation unit at predetermined time intervals,
5. The maintenance system according to claim 4, wherein the information generation unit generates a barcode symbol storing the newest identification information received from the information center. Before Symbol maintenance terminal is maintenance system according to claim 4 or 5 has a function for editing the operation content information among the information obtained by reading the bar code symbols generated by the information generation unit. The elevator is an elevator,
The maintenance system according to any one of claims 4 to 6, wherein the display unit is a maintenance display provided in an elevator car.

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