Elevator maintenance system

Abstract

The central management server includes a W / A code collection unit configured to collect codes indicating abnormal signals (W / A codes) - the W / A codes are generated by at least one of each component that operates the elevator, a control panel corresponding to the elevator, and a terminal device corresponding to the control panel, and are configured to include a code indicating the W / A code generator and a problem - a W / A code database configured to store the received W / A codes, information for interpreting the W / A codes, and judgment criteria; and a judgment unit configured to set at least one of a caution state and a warning state for the elevator inspection item based on the W / A codes and the judgment criteria.

Description

[Technical Field]

[0001] The present invention relates to an elevator maintenance management system. [Background technology]

[0002] When an elevator malfunctions, even if the malfunction can be diagnosed remotely, elevator maintenance personnel must be dispatched to the site to repair the malfunction, which means passengers cannot use the elevator during the time it takes to repair the malfunction. Therefore, it is very important to predict elevator malfunctions in advance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Korean Patent No. 10-1775529 [Patent Document 2] Korean Patent No. 10-2348616 [Patent Document 3] Korean Patent Publication No. 10-2007-0048010 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides an elevator maintenance control system that detects signs of elevator failure.

[0005] The present disclosure provides an elevator maintenance management system with improved accuracy in determining elevator failure symptoms.

[0006] The present disclosure provides an elevator maintenance control system that sends caution or warning signals so that elevators can be maintained and repaired before they actually fail. [Means for solving the problem]

[0007] The present disclosure provides an elevator maintenance management system including a repair terminal carried by a repair worker; and a central management server that collects and stores elevator operation status signals from an elevator control panel, analyzes the collected and stored operation status signals, determines fault sign information for each elevator inspection item, and then transfers the determined fault sign information to the repair terminal; and the repair terminal displays the determination result of the fault sign information for each elevator inspection item.

[0008] In this case, the fault symptom information may include a fault caution and a fault warning state. Further, the repair terminal may be provided with a warning / warning display screen that displays a determination result of a fault caution and a fault warning state for each elevator inspection item, and the warning / warning display screen may be provided with an evaluation input unit that allows a repair worker to input an evaluation opinion regarding the determination result of a fault caution and a fault warning state displayed for each elevator inspection item.

[0009] In addition, the central management server can collect and store the evaluation opinions input through the evaluation input unit, and determine the fault caution and fault warning status for the elevator inspection items by taking into consideration the evaluation opinions collected and stored in the past.

[0010] In addition, the repair terminal may be provided with a periodic inspection creation screen on which the periodic inspection process for the elevator can be input, and a warning / alert confirmation button may be provided on the periodic inspection creation screen on which the judgment results of the fault warning and fault warning states can be confirmed, and when the warning / alert confirmation button is operated, the warning / alert display screen may be displayed.

[0011] The warning confirmation button may be displayed in a manner that is distinguishable from one another depending on the determination result of the central management server regarding the fault warning and fault warning states.

[0012] The central management server further includes an operation signal storage unit that classifies and stores elevator operation status signal information collected from the elevator control panel by inspection item; an evaluation opinion storage unit that stores evaluation opinion information via the evaluation input unit by inspection item; and a warning / alarm determination unit that compares the operation status signal information for each inspection item stored in the operation signal storage unit with first and second determination criteria set for each inspection item and determines the fault warning and fault alert states; and the warning / alarm determination unit can newly set the first and second determination criteria by reflecting the evaluation opinion information stored in the evaluation opinion storage unit.

[0013] In addition, the first determination criterion includes a first critical value criterion that sets an allowable range for a signal value of the operation status signal for each inspection item, and a first critical number criterion that sets an allowable range for the number of times the signal value of the operation status signal for each inspection item deviates from the first critical value criterion, and the caution / alert determination unit can compare the operation status signal information for each inspection item stored in the operation signal storage unit with the first critical number criterion to determine whether the inspection item corresponds to a warning state for a malfunction.

[0014] The warning determination unit may newly set at least one of the first critical value criterion and the first critical number criterion based on the evaluation opinion information stored in the evaluation opinion storage unit.

[0015] In addition, the second determination criterion includes a second critical value criterion that sets an allowable range for a signal value of the operation status signal for each inspection item, and a second critical number criterion that sets an allowable range for the number of times the signal value of the operation status signal for each inspection item deviates from the second critical value criterion, and at least one of the second critical value criterion and the second critical number criterion has a larger allowable range than the first critical value criterion and the first critical number criterion, and the warning determination unit may compare the operation status signal information for each inspection item stored in the operation signal storage unit with the second critical number criterion to determine whether the inspection item corresponds to a fault warning state.

[0016] The warning determination unit may newly set at least one of the second critical value criterion and the second critical number criterion based on the evaluation opinion information stored in the evaluation opinion storage unit.

[0017] Meanwhile, the present disclosure provides an elevator maintenance method including the steps of: a central management server collecting and storing elevator operation status signals from an elevator control panel; a central management server analyzing the operation status signals and determining fault caution and fault warning states for each elevator inspection item; a step of transmitting the determination results of the fault caution and fault warning states from the central management server to a maintenance terminal; a step of displaying the determination results of the fault caution and fault warning states through the maintenance terminal; a step of inputting a maintenance worker's evaluation opinion on the determination results of the fault caution and fault warning states through the maintenance terminal; and a step of the central management server collecting and storing the evaluation opinion input through the maintenance terminal; wherein the central management server makes a determination taking into account the repair worker's past evaluation opinion stored in the central management server in the process of determining the fault caution and fault warning states.

[0018] In one aspect of the present disclosure, the central management server includes a W / A code collection unit configured to collect codes indicating abnormal signals (W / A codes) - the W / A codes are generated by at least one of each component that operates an elevator, a control panel corresponding to the elevator, and a terminal device corresponding to the control panel, and are configured to include a code indicating a W / A code generator and a problem - a W / A code database configured to store the received W / A codes, information for interpreting the W / A codes, and judgment criteria; and a judgment unit configured to set at least one of a caution state and a warning state for an inspection item of the elevator based on the W / A codes and the judgment criteria.

[0019] In one embodiment, the criteria may include the number of occurrences of the W / A code.

[0020] In one embodiment, the criteria may include the number of occurrences of the W / A code in a preselected time interval.

[0021] In one embodiment, the criteria may include the number of occurrences of the W / A code in a first preselected time interval and the number of occurrences in a second preselected interval.

[0022] In one embodiment, each component that operates the elevator may include an inverter.

[0023] In one embodiment, the W / A code collection unit may further collect a signal indicating an operation status of the elevator, and the determination unit may be further configured to generate a new W / A code based on the signal indicating the operation status of the elevator and a preselected criterion.

[0024] In one embodiment, the signal indicative of the elevator's operational status may be a signal configured not to indicate a diagnostic subject.

[0025] In one aspect of the present disclosure, an elevator system includes: an inverter configured to drive an elevator and generate a first W / A code, the first W / A code being configured to include a code indicating a problem with the operation of the elevator; a control panel electrically connected to the inverter and configured to store the first W / A code; a terminal configured to transmit the first W / A code stored in the control panel; and a central management server configured to receive the first W / A code from the terminal and set at least one of a caution state and a warning state for an inspection item of the elevator based on the first W / A code and preselected criteria.

[0026] In one embodiment, the first W / A code further includes a code indicating the inverter, and the control panel is further configured to generate a second W / A code—the second W / A code is configured to include a code indicating a generator and a problem—and transmit it to the central management server; and the central management server may be configured to set at least one of the caution state and the warning state for the elevator inspection item based on the second W / A code and the preselected criteria.

[0027] In one embodiment, the first W / A code further includes a code indicating the inverter, and the terminal is further configured to generate a third W / A code—the third W / A code is configured to include a code indicating a generator and a problem—and then transmit the third W / A code to the central management server; and the central management server may be configured to set at least one of the caution state and the warning state for the elevator inspection item based on the third W / A code and the preselected criteria.

[0028] In one embodiment, the central management server may be further configured to receive a signal including a code indicating an elevator operation status, and to generate a fourth W / A code based on the signal including the code indicating the elevator operation status and the preselected criteria.

[0029] In one embodiment, the signal including the code indicating the elevator's operating status may not include a generator.

[0030] In one aspect of the present disclosure, an elevator remote monitoring method includes the steps of: generating a first W / A code by an elevator drive component, the first W / A code being configured to include a code indicating a problem with the elevator's operation; detecting and storing the first W / A code by a control panel; transmitting the stored first W / A code to a central management server by a terminal; and receiving the first W / A code by the central management server and setting at least one of a caution state and a warning state for an inspection item of the elevator based on the first W / A code and preselected criteria.

[0031] In one embodiment, the elevator drive components may include an inverter.

[0032] In one embodiment, the first W / A code further includes a code indicating the inverter, and may include a step of generating, by the inverter, a signal including a code indicating the operating status of the elevator without including a generator; a step of collecting, by the central management server, a signal including a code indicating the operating status of the elevator; and a step of generating, by the central management server, a fourth W / A code based on the signal including the code indicating the operating status of the elevator and preselected criteria. [Effects of the Invention]

[0033] By detecting signs of a malfunction before an elevator malfunction occurs, determining whether it is in a malfunction caution or malfunction warning state, and transmitting the determination result to a maintenance management terminal, maintenance management workers can be guided to inspect the relevant inspection items, thereby preventing malfunctions from occurring in advance.

[0034] The maintenance worker evaluates the judgment result of the caution and warning state and inputs the evaluation opinion, and as a result, the caution and warning state is judged by reflecting the evaluation opinion of the maintenance worker, thereby improving the accuracy of the judgment result for the failure symptom.

[0035] The system collects abnormal operations in real time from various modules that make up the elevator system, analyzes and manages them, generates caution and / or warning signals, notifies the site status before a malfunction occurs, and supports pre-inspection. [Brief explanation of the drawings]

[0036] [Figure 1] 1 is a diagram conceptually illustrating the overall configuration of an elevator maintenance management system according to an embodiment of the present disclosure. [Figure 2] FIG. 10 is a diagram conceptually illustrating the overall configuration of an elevator maintenance management system according to another embodiment of the present disclosure. [Figure 3] FIG. 2 is a block diagram functionally illustrating the configuration of a central management server and a repair terminal of an elevator maintenance management system according to an embodiment of the present disclosure. [Figure 4] 1 is an operational flowchart illustrating a fault caution and fault warning state determination process of an elevator maintenance management system according to an embodiment of the present disclosure, along with the flow of operations. [Figure 5] 10 is a diagram illustrating an example of a periodic inspection creation screen and a warning confirmation button displayed on a repair terminal according to an embodiment of the present disclosure. FIG. [Figure 6] 10 is a diagram illustrating an example of a warning display screen and an evaluation input unit displayed on a repair terminal according to an embodiment of the present disclosure. [Figure 7] FIG. 1 is a block diagram illustrating an example of an elevator maintenance system according to an embodiment of the present disclosure. [Figure 8] FIG. 1 is a block diagram illustrating an example of an elevator maintenance system according to an embodiment of the present disclosure. [Figure 9] 10 is a diagram illustrating an example of a screen displayed on a repair terminal according to an embodiment of the present disclosure. [Figure 10] 10 is a diagram illustrating an example of a screen displayed on a repair terminal according to an embodiment of the present disclosure. [Figure 11] 10 is a diagram illustrating an example of a screen displayed on a repair terminal according to an embodiment of the present disclosure. [Figure 12]1 is a flowchart of a process for training a central management server of an elevator maintenance management system according to an embodiment of the present disclosure. [Figure 13] 1 is a process flowchart illustrating the caution and warning state determination process of an elevator maintenance management system according to an embodiment of the present disclosure, along with the operational flow. DETAILED DESCRIPTION OF THE INVENTION

[0037] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] The present disclosure will be described in detail below with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein.

[0038] In the drawings, in order to clearly explain the present disclosure, parts that are not relevant to the explanation are omitted, and similar parts are designated by similar reference numerals throughout the specification.

[0039] Throughout the specification, when a part "comprises" an element, this does not mean that it excludes other elements, but that it may further include other elements, unless specifically stated to the contrary.

[0040] The technology described in this disclosure is not intended to be limited to particular embodiments, but should be understood to encompass various modifications, equivalents, and / or alternatives to the embodiments of the present disclosure.

[0041] As used in this disclosure, "configured to" may be used interchangeably with, for example, "suitable for," "capable of," "designed to," "modified to," "made to," or "capable of," depending on the context. The term "configured to" does not necessarily mean exclusively "specially designed" hardware. Instead, in some contexts, the phrase "device configured to" may mean that the device is "capable of" working with other devices or components.

[0042] The prior art documents mentioned in this disclosure are incorporated herein by reference in their entirety, and it can be understood that the contents of the prior art documents are applicable to the parts briefly described in this disclosure by a person having ordinary skill in the art.

[0043] Fig. 1 is a diagram conceptually illustrating the overall configuration of an elevator maintenance system according to one embodiment of the present disclosure. Fig. 2 is a diagram conceptually illustrating the overall configuration of an elevator maintenance system according to another embodiment of the present disclosure.

[0044] An elevator maintenance management system according to an embodiment of the present disclosure may include a repair terminal 500 carried by a repair worker, and a central management server 400 that collects, stores, and analyzes elevator operation status signals from an elevator control panel 100 to determine fault symptom information for each elevator inspection item. The fault symptom information may include a fault caution status and a fault warning status. The fault caution status and the fault warning status will be described in detail later.

[0045] The central management server 400 can transmit the determination results of the fault caution and fault warning states to the repair terminal 500. The repair terminal 500 can display the determination results of the fault caution and fault warning states for each elevator inspection item transmitted from the central management server 400 on a screen.

[0046] In this embodiment, a case will be described in which the central management server 400 determines a malfunction symptom and transmits the determination result to the repair terminal 500. Meanwhile, in another embodiment, a malfunction symptom may be determined by at least one of the elevator control panel 100, the central management server 400, and the repair terminal 500. When a malfunction symptom is determined by two or more components, the reliability of the malfunction determination may be improved.

[0047] First, to explain the overall system configuration, an elevator may generally include a control panel 100 that controls the elevator's operating status. The control panel 100 receives various operating status signals generated by the elevator, which may include a normal signal, an abnormal signal, and a failure signal. The normal signal may refer to a signal generated when the corresponding inspection part is normal. The failure signal may refer to a signal generated when the corresponding inspection part is malfunctioning. The abnormal signal may refer to a signal generated when the operating status signal generated by the corresponding inspection part deviates from the normal range but is not in a complete malfunction state. In one embodiment, the abnormal signal may include a caution signal and a warning signal. In one embodiment, the operating status signal may include a signal related to the actual operation of each elevator part.

[0048] The elevator operation status signal may be generated by a number of sensors installed in the elevator. The control panel 100 may receive the elevator operation status signal through such sensors. The control panel 100 may receive and store all signals related to the elevator operation status.

[0049] An elevator operation status signal may be transmitted in real time to the central management server 400 via the communication unit 200. As shown in Fig. 1, the communication unit 200 can communicate with the central management server 400 via a modem 310 to transmit elevator operation status signal information. As shown in Fig. 2, if a separate monitoring panel is present, the communication unit 200 can communicate with the central management server 400 via a monitoring panel server 320 to transmit the information.

[0050] The central management server 400 can store elevator operation status signals transmitted from the elevator control panel 100 via the communication unit 200. The central management server 400 can analyze the operation status signals and determine fault warning and fault alert status for each elevator inspection item. In one embodiment, a terminal (not shown) can sense information from the control panel 100 and then transmit the information to the central management server 400.

[0051] The central management server 400 may be implemented in various types of servers depending on the needs of the user. The central management server 400 may also be connected to the repair terminal 500 via the Internet. Elevator operation status signal information, etc. may be transmitted from the central management server 400 to the repair terminal 500. The repair terminal 500 can connect to the central management server 400 through an application program and receive elevator operation status signal information and the results of fault caution and fault warning status determination. More specifically, the repair terminal 500 may display guidance content such as the number of fault caution or fault warning codes accumulated by elevator part, their probable causes, and items to be checked, via an API (Application Program Interface) provided by the central management server 400.

[0052] The warning state may indicate that an elevator malfunction is detected and that the corresponding inspection area must be inspected with caution. The alert state may indicate that the elevator malfunction is detected more severely than the warning state and that the corresponding inspection area must be inspected with greater caution. For example, when an abnormal signal is detected in the elevator operation status signal, the central management server 400 may determine the warning state or the alert state by considering the signal value and occurrence count of the abnormal signal. Of course, when the central management server 400 detects a malfunction signal in the elevator operation status signal, it generates a separate malfunction occurrence signal and responds to the malfunction signal through a malfunction handling process.

[0053] Meanwhile, for example, the fault caution status may be an item that a repair technician must selectively check when dispatched for inspection, etc. The fault warning status may be an item that a repair technician must mandatory check when dispatched for inspection, etc. Of course, if a fault is detected, a message indicating that dispatch is required may be displayed on the repair terminal 500.

[0054] In the present disclosure, when an abnormal signal other than a fault signal is detected in the elevator operation status signal, a fault caution or fault warning state can be determined based on the detected signal. The determination result is provided to the repair terminal 500, so that a repair worker can be guided to inspect the fault caution or fault warning state inspection items when visiting the elevator site. This can prevent elevator breakdowns from occurring.

[0055] Hereinafter, a detailed configuration of an elevator maintenance management system according to an embodiment of the present disclosure will be described in more detail.

[0056] Fig. 3 is a block diagram functionally illustrating the configuration of a central management server and a repair terminal of an elevator maintenance management system according to an embodiment of the present disclosure. Fig. 4 is an operational flowchart illustrating a fault caution and fault warning state determination process of an elevator maintenance management system according to an embodiment of the present disclosure. Fig. 5 is a diagram exemplarily illustrating a periodic inspection creation screen and a warning / warning confirmation button displayed on a repair terminal according to an embodiment of the present disclosure. Fig. 6 is a diagram exemplarily illustrating a warning / warning display screen and an evaluation input unit displayed on a repair terminal according to an embodiment of the present disclosure.

[0057] The elevator maintenance management system according to an embodiment of the present disclosure may include a repair terminal 500 and a central management server 400.

[0058] The central management server 400 may include a first communication unit 401a, an operation signal storage unit 402, a warning / alert determination unit 404, and a second communication unit 401b. The central management server 400 may further include an evaluation opinion storage unit 403.

[0059] The first communication unit 401a can communicate with the elevator communication unit 200 and receive in real time operation status signals recorded in the elevator control panel 100. The elevator operation status signals received via the first communication unit 401a may be stored in the operation signal storage unit 402 of the central management server 400. The elevator operation status signals may include various operation status signals such as elevator speed, floor number, door operation status, and detection signals of various sensors.

[0060] The operation signal storage unit 402 can classify and store elevator operation status signal information collected from the elevator control panel 100 via the first communication unit 401a by elevator inspection item. Various elevator inspection items can be preset according to user needs, such as a hoist motor, inverter, main rope, door drive motor, frost sensor, etc. The operation signal storage unit 402 can separately extract and classify each signal associated with such inspection item from the elevator operation status signals collected from the elevator control panel 100, and then store the signals by inspection item.

[0061] The warning / alarm determination unit 404 can determine a fault warning or fault warning state by comparing the operation status signal information for each inspection item stored in the operation signal storage unit 402 with a first determination criterion and a second determination criterion set for each inspection item. The determination result by the warning / alarm determination unit 404 may be transferred to the repair terminal 500 via the second communication unit 501b.

[0062] The second communication unit 501b can communicate with the repair terminal 500 and receive an information request signal from the repair terminal 500. The second communication unit 501b can transmit the determination result by the warning / alert determination unit 404 to the repair terminal 500.

[0063] The evaluation opinion storage unit 403 can store evaluation opinion information input by the repair worker through the repair terminal 500 for each inspection item in response to the determination result of the warning / alarm determination unit 404. The warning / alarm determination unit 404 reflects such evaluation opinion information in the process of determining whether a fault warning or fault alert state is required.

[0064] More specifically, as shown in FIG. 4, first, the central management server 400 can collect and store elevator operation status signals from the elevator control panel 100 (S10). The central management server 400 can analyze the stored operation status signals and determine whether a malfunction caution or malfunction warning state exists for each elevator inspection item (S20). The process of determining whether a malfunction caution or malfunction warning state exists (S20) includes steps S21 to S25. First, the central management server 400 can analyze the operation status signals for each elevator inspection item and determine whether a malfunction caution state exists (S21). If a malfunction caution state does not exist, the central management server 400 can determine that the elevator is normal (S23). If a malfunction caution state exists, the central management server 400 can analyze the operation status signal and determine whether a malfunction warning state exists (S22). If the state does not correspond to a fault warning state, the central management server 400 determines that the state is a fault warning state (S25), and if the state corresponds to a fault warning state, the central management server 400 may determine that the state is a fault warning state (S24). After determining the fault warning and fault warning states (S20), the central management server 400 may transfer the determination result to the repair terminal 500 (S30). The repair terminal 500 may display the transferred determination result of the fault warning and fault warning states (S40).

[0065] During the elevator use, elevator operation status signals may be continuously collected and stored. Also, during the elevator use, every time a new operation status signal is collected and stored, a fault warning or fault warning state may be determined by the warning / alarm determination unit 404. The warning / alarm determination unit 404 is programmed with a determination method and may be included in a control panel or a repair terminal other than the central management server.

[0066] To explain the judgment process (S20) of the warning / alarm judgment unit 404 in more detail, the warning / alarm judgment unit 404 can compare the operation status signal information for each inspection item stored in the operation signal storage unit 402 with a first judgment criterion set for each inspection item to determine whether the inspection item is in a warning failure state (S21). If it is determined that the inspection item is in a warning failure state, the warning / alarm judgment unit 404 can compare the operation status signal information with a second judgment criterion set for each inspection item to determine whether the inspection item is in a warning failure state (S22).

[0067] The first determination criterion may include a first critical value criterion setting an allowable range for the signal value of the operation status signal for each inspection item, and a first critical number criterion setting an allowable range for the number of times the signal value of the operation status signal for each inspection item deviates from the first critical value criterion. The caution / warning determination unit 404 may compare the operation status signal information for each inspection item stored in the operation signal storage unit 402 with the first critical number criterion to determine whether the inspection item corresponds to a caution failure state. That is, the caution / warning determination unit 404 may determine that the inspection item corresponds to a caution failure state when the number of times the signal value of the operation status signal deviates from the first critical value criterion exceeds the first critical number criterion.

[0068] The second determination criterion may include a second critical value criterion that sets an allowable range for the signal value of the operation status signal for each inspection item, and a second critical number criterion that sets an allowable range for the number of times the signal value of the operation status signal for each inspection item deviates from the second critical value criterion. The warning determination unit 404 may compare the operation status signal information for each inspection item stored in the operation signal storage unit 402 with the second critical number criterion to determine whether the inspection item corresponds to a fault warning state. That is, if the number of times the signal value of the operation status signal deviates from the second critical value criterion exceeds the second critical number criterion, it may determine that the inspection item corresponds to a fault warning state.

[0069] At least one of the second critical value criterion and the second critical number criterion may have a larger allowable range than the first critical value criterion and the first critical number criterion.

[0070] For example, if the current value for the door drive motor is set to the normal range up to 100A and the fault range above 200A, a current value of 0A to 100A for the door drive motor may correspond to a normal signal, a current value of 200A or more may correspond to a fault signal, and a current value of 101A to 200A may correspond to an abnormal signal. In this case, the first critical value for determining a fault warning state may be set to 100A, and the first critical count may be set to, for example, 300 times. The second critical value for determining a fault warning state may be set to the same 100A as the first critical value. The second critical count may be set to 400 times, which is larger than the first critical count. Of course, the second critical value may be set to 150A, which is larger than the first critical value, and the second critical count may be set to 300 times, which is the same as the first critical count. Alternatively, the second critical value may be set to 150A, which is larger than the first critical value, and the second critical count may be set to 400 times, which is larger than the first critical count. The threshold value criteria and the threshold number criteria are merely examples and may be set in various ways according to the needs of the user.

[0071] With the first and second determination criteria set as above, if the number of times the current value of the door drive motor is 101 A to 200 A is detected 300 or more times, the warning / alarm determination unit 404 may determine that the door drive motor is in a fault warning state. Thereafter, if the number of times the current value of the door drive motor is 101 A to 200 A is detected 400 or more times as the usage time increases, the warning / alarm determination unit 404 may determine that the door drive motor is in a fault warning state. The time range for the number of times the current value of the door drive motor is 101 A to 200 A may be set to a time range from the date of new installation of the corresponding inspection item to the present, or may be set to a range within a certain period from the present, for example, a period up to 30 days from the present. That is, the warning / alarm determination unit 404 may determine that the fault warning state or fault warning state by limiting the number of times the signal value of the elevator operation status signal deviates from the first critical value criterion or the second critical value criterion to the number of times detected within a predetermined specified period.

[0072] In the above case, the door drive motor may not be in a fault state, but may be judged to have a fault symptom because an abnormal signal outside the normal range is repeatedly generated. The central management server 400 can then judge whether the state is a fault warning state or a fault warning state based on the first and second judgment criteria, and notify a repair technician of the fault symptom state. As a result, even when no fault occurs, the central management server 400 can detect the fault symptom and guide the repair technician to inspect the corresponding inspection item. Furthermore, the inspection measures can be completed before a fault occurs, thereby preventing a fault from occurring.

[0073] Meanwhile, the central management server 400 may include the evaluation opinion storage unit 403 as described above. The warning / alarm determination unit 404 may determine whether a fault warning state or a fault warning state is present by reflecting the evaluation opinion information of the repair worker stored in the evaluation opinion storage unit 403. In this case, the warning / alarm determination unit 404 may set new first and second determination criteria by reflecting the evaluation opinion information. In addition, the warning / alarm determination unit 404 may determine whether a fault warning state or a fault warning state is present based on the newly set determination criteria.

[0074] More specifically, the repair terminal 500 may include a terminal communication unit 501, a display unit 502, an input unit 503, and a control unit 504, as shown in FIG.

[0075] The input unit 503 is formed in the repair terminal 500 so that a repair worker can perform an input operation, and may be formed in various forms such as a touch operation method through a touch panel or a separate physical button.

[0076] The display unit 502 displays elevator operation status signal information, fault warning and fault warning judgment result information, etc. transferred from the central management server 400, and may be formed as a display screen formed in the repair terminal.

[0077] The terminal communication unit 501 communicates with the second communication unit 401b of the central management server 400 and can transmit an information request signal to the central management server 400 or receive fault warning and fault alert determination result information from the central management server 400.

[0078] The control unit 504 can control the operation of the input unit 503, the display unit 502, and the terminal communication unit 501 of the repair terminal 500. When a repair worker generates an input signal through the input unit 503, the control unit 504 can control the operation to transmit an information request signal corresponding to the input signal to the central management server 400 through the terminal communication unit 501. By transmitting such an information request signal, fault warning and fault warning determination result information, etc. can be received from the central management server 400 through the terminal communication unit 501. The control unit 504 can control the operation to display the fault warning and fault warning determination result information, etc. received from the central management server 400 on the display unit 502.

[0079] The display unit 502 of the repair terminal 500 may include a warning / alarm display screen 530 that displays the determination results of the fault warning and fault warning states for each elevator inspection item, as shown in Fig. 6. The determination results of the fault warning and fault warning states transferred from the central management server 400 may be displayed on the warning / alarm display screen 530.

[0080] The display unit 502 of the maintenance terminal 500 may include a periodic inspection creation screen 510 on which a periodic inspection process for an elevator can be input, as shown in Fig. 5. Elevators are required to undergo periodic inspections according to management regulations, and the maintenance terminal 500 may display the periodic inspection creation screen 510 so that inspection results can be input during the periodic inspection process.

[0081] A warning confirmation button 520 may be formed on the periodic inspection creation screen 510, allowing the user to confirm the determination result of the fault warning and fault warning states. When the warning confirmation button 520 is touched, operation may be controlled to display a warning display screen 530. The warning display screen 530 may be displayed so as to overlap the periodic inspection creation screen 510 as shown in FIG. 6, but may also be displayed in a separate screen switching format.

[0082] In one embodiment, the periodic inspection creation screen 510 may display an elevator number (elevator number), an address, an inspection period, an inspection item, an inspection content, and the like.

[0083] The caution / warning display screen 530 may be formed with a plurality of inspection item display areas 532 that display fault caution and fault warning states for each inspection item. Each inspection item display area 532 may display information such as the code for each inspection item, the judgment result (category), the diagnosed part (monitoring panel, inverter, etc.), the number of occurrences, and the number of occurrences in the previous month. In addition, a detection period display area 531 may be formed to display information regarding the detection period for determining the corresponding fault caution and fault warning state.

[0084] The caution / warning display screen 530 may have an evaluation input unit 540 in which a repair worker can input an evaluation opinion regarding the judgment result of the fault caution and fault warning status displayed for each elevator inspection item. The evaluation input unit 540 may be formed for each inspection item display area 532. When the inspection item display area 532 is touched, detailed information (detection conditions, code description, purpose, occurrence start time, etc.) corresponding to the inspection item display area 532 may be displayed, and an evaluation input unit 540 for the judgment result of the inspection item may also be displayed. The caution / warning display screen 530 may include a details button 545. Pressing the details button 545 may display related detailed information, such as a predicted cause (exceeding the rated load, increased mechanical interference, error occurrence, parameter error, etc.).

[0085] The evaluation input unit 540 is for inputting the evaluation opinion of the repair worker, and may be formed in the form of buttons that can be input through a touch operation, as shown in Fig. 6. For example, it may be formed in the form of an "agree" button that is touched when the repair worker agrees with the determination result of the central management server 400, and a "disagree" button that is touched when the repair worker disagrees with the determination result of the central management server 400. Furthermore, for example, the evaluation input unit 540 may be formed to input whether a failure has occurred, or whether the actual on-site state is a caution state or a warning state.

[0086] As described above, the warning confirmation button 520 is provided on the periodic inspection creation screen 510, so that the maintenance worker can be guided to check the fault warning and fault warning status of the elevator during the periodic inspection process through the warning confirmation button 520. At this time, if the determination result of the central management server 400 is a fault warning or fault warning status, the warning confirmation button 520 displays the fault warning or fault warning status in a form with different discrimination, such as by displaying it in a different color, after comparing it with the normal status, so that the maintenance worker can more easily discern the fault warning or fault warning status.

[0087] In addition, a warning display screen 530 may be displayed on the periodic inspection creation screen 510. Therefore, a maintenance worker can check the elevator's fault warning and fault warning status during the periodic inspection process. In particular, the maintenance worker can directly inspect the inspection items that are in the fault warning or fault warning status on-site to check whether there are any signs of a malfunction. Through this checking process, the appropriateness of the fault warning and fault warning status determination results of the central management server 400 may be evaluated. Depending on whether the maintenance worker agrees with the determination results, the maintenance worker can input their evaluation opinion through the evaluation input unit 540 formed with the "agree / disagree" button as described above.

[0088] In this way, the central management server 400 can update its judgment criteria for fault warning and fault alert states based on the evaluation opinions input by the repair workers. By repeating this process, the central management server 400 can further improve the accuracy of its judgment results for fault warning and fault alert states. That is, if there are many "disagreement" opinions among the repair workers' evaluation opinions, the central management server 400 can derive a new judgment result by changing the first and second judgment criteria. A decrease in "disagreement" opinions and an increase in "agreement" opinions among the evaluation opinions for the new judgment result can mean that the accuracy of the central management server 400's evaluation results has improved. Therefore, by adjusting the judgment criteria to reflect the repair workers' evaluation opinions, the accuracy of the judgment results for fault warning and fault alert states can be improved.

[0089] 6 may be used in the process in which a repair worker inputs an evaluation and opinion on the fault warning and fault warning status after the periodic inspection process, as described above. Although not shown in the drawing, a separate warning and warning display screen (not shown) may also be displayed on the repair terminal before the repair worker is dispatched to the site for the periodic inspection. Before dispatching to the site for the elevator inspection, the repair worker can check the fault warning and fault warning status on the warning and warning display screen 530 displayed on the repair terminal and recognize the frequency of problem occurrence at the site, the site characteristics, etc.

[0090] The reason why the evaluation input section 540 has a "Mismatch" button in addition to the "Match" button is to select information in which the judgment results of the fault caution and fault warning state do not match the actual on-site situation. With only the "Match" button, it may be difficult for the repair worker to confirm the information when the information before and after the dispatch do not match.

[0091] FIG. 7 is a block diagram showing an example of an elevator maintenance management system according to an embodiment of the present disclosure. FIG. 8 is a block diagram showing an example of an elevator maintenance management system according to an embodiment of the present disclosure. Referring to FIGS. 7 and 8, the elevator maintenance management system includes elevator side 800 components, central management server 400 side components, and service side components. The elevator side 800 in FIG. 7 illustrates a monitoring panel type that manages multiple elevators, while the elevator side 800 in FIG. 8 illustrates a standalone type. The same reference numerals are assigned to the same components. In one embodiment, the elevator side 800 may include a building in which an elevator is installed and a group of buildings in which elevators are installed.

[0092] 7, elevator side 800 includes a plurality of elevators 810a, 810b, and 801c. Elevators 810a, 810b, and 801c are connected to corresponding control panels 820a, 820b, and 820c, respectively. Each control panel 820a, 820b, and 820c is connected to a terminal 830. Terminal 830 is managed by a monitoring panel program 840. In one embodiment, terminal 830 and monitoring panel program 840 may be referred to as a monitoring panel.

[0093] The central management server 400 includes a notice / warning code management unit 450 and a server management unit 460. The service side includes a repair terminal 500, a customer portal 600, and a remote management system 700.

[0094] Hereinafter, the elevator floors are defined as higher floors in the order of elevators 810a, 810b, 810c-control panels 820a, 820b, 820c-terminal device 830-monitoring panel program 840. Also, the caution / warning code management unit 450 of the central management server 400, which receives the code sent by the monitoring panel program 840, is defined as a higher floor than the monitoring panel program 840.

[0095] In one embodiment, each of the mechanical and electronic components (e.g., motors, doors, inverters, door inverters, etc.) included in the elevators 810a, 810b, and 810c, the control panels 820a, 820b, and 820c, and the terminal 830 can generate a code indicating an abnormality signal (W / A code) (which may be included in the above-mentioned operation status signal) and transmit it to the components in a higher hierarchy. In this case, the W / A code may be transmitted in real time or periodically. If the W / A code is transmitted periodically, the number of occurrences and the time of occurrence may also be transmitted. That is, each mechanical and electronic component included in the elevators 810a, 810b, and 810c can be a corresponding control panel 820a, 820b, and 820c, the control panels 820a, 820b, and 820c can be a terminal 830, the terminal 830 can be a monitoring panel program 840, and the monitoring panel program 840 can transmit a W / A code to the caution / warning code management unit 450 of the central management server 400. A higher-level component (e.g., control panels 820a, 820b, and 820c) can relay a W / A code received from a lower-level component (e.g., elevators 810a, 810b, and 810c) to a higher-level component (e.g., terminal 830). This allows the caution / warning code management unit 450 to collect W / A codes from each of the elevators 810a, 810b, and 810c, the control panels 820a, 820b, and 820c, the terminal device 830, and the monitoring panel program 840. Each component of the elevator side 800 may be configured to store criteria for generating a W / A code.

[0096] In addition, various operation status signals including the elevator speed, floor number, door operation status, button operation status, operation panel (OPB, Operate Panel Board) status, and detection signals of various sensors may be relayed to the central management server 400 via the control panels 820a, 820b, 820c, terminal 830, and monitoring panel program 840.

[0097] The central management server 400 can generate a W / A code based on the collected various operational status signals. The central management server 400 can generate a W / A code (e.g., a code starting with 5) with the central management server 400 as the diagnostic subject based on preselected criteria, such as the duration a specific condition has been maintained or the number of occurrences.

[0098] The W / A codes and their corresponding explanations can be found in Table 1 below.

[0099] [Table 1]

[0100] The codes shown in Table 1 are merely examples and can be set by the user to classify desired information. In one embodiment, the W / A code may include a code indicating the diagnostic entity and a code configured to indicate the diagnostic content (which may include the problem, cause, etc.). The diagnostic entity may also be a generator that generates the W / A code. For example, in the W / A code 20016 in the first row of Table 1, 2 indicates the inverter, which is the diagnostic entity, and 16 indicates a problem with the frosting distance. More specifically, when a corresponding warning condition occurs, the inverter can transmit a signal to the control panel through a pre-set bit in the inverter-control panel communication protocol. The warning condition (e.g., the criteria for the abnormal signal) may be pre-selected or can be set and changed by an administrator. For example, the inverter, which is an elevator component, can generate a W / A code based on pre-selected criteria. This W / A code may be detected by a terminal and then transmitted to a central management server. More specifically, when an abnormal condition of the inverter is detected, a W / A code is generated, and the W / A code can be stored using a specific memory in the control panel to which this information is (electrically) connected. The terminal detects whether or not a W / A code has been generated using the change in the code value, and if it detects its generation, transmits the value to the server.

[0101] In one embodiment, the inverter-detected code may include codes related to speed deviation, torque current, motor voltage, DC link, initial value, inverter torque analysis in a constant speed section, frost distance, elevator car load, inverter torque, door speed deviation, door overload current, door encoder, door current offset, door communication status, etc.

[0102] In one embodiment, as described below, caution and warning signals may be generated based on the W / A code and preselected criteria. Alternatively, as shown in Table 1, information about caution and warning signals may be included in the W / A code from the beginning. For example, 20016 and 21011 are both W / A codes generated by an inverter and both have the same detecting entity (here, the inverter). The difference between 20XXX and 21XXX refers to the same detecting entity, the inverter, and the caution signal may be expressed as 20 and the warning signal as 21. In other words, even if the same diagnostic entity is involved, a W / A code corresponding to a warning may be generated immediately depending on the degree of abnormality in the operating state. The level and criteria of such W / A codes may be selected in advance.

[0103] As another example, taking W / A code 30001 in the third row of Table 1 as an example, the terminal checks the inverter torque current feedback signal (hereinafter, current Fbk) in the section where the elevator is moving at a constant speed, and if the time that current Fbk exceeds 100% is greater than a predetermined time (e.g., 100 ms), the terminal generates 30001 and sends it to the server. The criteria for generating and sending such a W / A code may be preselected or can be set and changed by an administrator.

[0104] In one embodiment, the code diagnosed by the terminal may include a code related to a communication status.

[0105] As another example, taking the W / A code 50150 in the sixth row of Table 1 as an example, the central management server 400 can generate the W / A code 50150 based on the operation status signal. More specifically, the central management server 400 receives a hall button abnormality signal (e.g., 150), which is one of the signals indicating the operation status, via the control panels 820a, 820b, and 820c, the terminal 830, and the monitoring panel program 840. The central management server 400 can generate the W / A code 50150 in response to determining that the accumulated number of hall button abnormality signals has been repeated a predetermined number of times or more. In one embodiment, the signal indicating the operation status may be configured not to indicate the generator or the diagnostic agent. That is, the signal indicating the operation status may include a hall button abnormality signal, a door error signal, a communication abnormality signal, etc., and may be configured to indicate only the abnormality of a component constituting the elevator.

[0106] In one embodiment, the codes that the central management server 400 diagnoses may include codes related to the OPB board communication status, brake-related information, door errors, landing buttons, frosting devices, rope extension, multi-beam sensor-related information, etc.

[0107] The following explanation will be made by comparing 2XXXXXX and 5XXXX, for example. When the inverter is operating in a way that deviates from the preset standard, such as when the inverter is overloaded, the inverter detects an abnormality and generates a W / A code corresponding to 2XXXX. The generated W / A code is detected and stored by the control panel. The control panel transmits the 2XXXX W / A code to the central management server via the terminal.

[0108] 5XXXXX is a W / A code generated by the central control server. For example, in the case of 50150, the central control server continuously receives an elevator operation status of 150 (e.g., a problem with the hall call button), and based on preselected criteria, the central control server determines that the status is a caution or warning (even if it has temporarily returned to normal), and the central control server can generate a W / A code of 50150.

[0109] In one embodiment, the control panel may be configured to store W / A codes and abnormal operating conditions generated from elevator drive components, such as inverters, etc. The terminal may be configured to sense the information stored in the control panel and then transfer it to a central management server.

[0110] In this way, the central management server 400 can store the W / A code relayed at the lower level, and generate and store the W / A code based on the operation status signal.

[0111] Similarly, the terminal 830 and the monitoring panel program 840 can also generate a W / A code according to a preselected criterion based on the received operation status signal and then transmit it to a higher layer.

[0112] The present disclosure may include a case where the entity that generates the W / A code (diagnostic entity) and the diagnostic object are the same, and a case where the diagnostic entity and the diagnostic object are different.

[0113] The W / A codes 20016 and 30001 described above are codes that combine a code indicating the diagnostic subject and a code indicating the problem. Alternatively, the code indicating the diagnostic subject and the code indicating the problem may be generated and transmitted separately. That is, the present disclosure includes a configuration on the elevator side 800 transmitting a code (or its equivalent) configured to indicate the diagnostic subject and the problem to a configuration on a higher floor. Here, the problem may be configured to indicate at least one of the code content, cause, and code explanation.

[0114] In one embodiment, when transmitting a W / A code, the diagnostic entity may also transmit its location (e.g., address, unit number information) and / or the number of occurrences and / or the time of occurrence.

[0115] 8, elevator side 800 includes elevator 810. Control panel 820 is connected to elevator 810. Control panel 820 is connected to terminal 830. Terminal 830 is connected to caution / warning code management unit 450 of central management server 400, and transmits components of elevator 810, control panel 820, and W / A code from terminal 830 to caution / warning code management unit 450. Control panel 820 and terminal 830 in FIG. 8 correspond to control panels 820a, 820b, 820c, and terminal 830 shown in FIG. 7, respectively.

[0116] In one embodiment, the caution / warning code management unit 450 includes a W / A code collection unit 452 and a W / A code database 454. The W / A code collection unit 452 is configured to receive the W / A code from the elevator side 800. Various protocols can be used, and as an example, the W / A code collection unit 452 receives the W / A code from the elevator side 800 in JSON format. In one embodiment, the W / A code collection unit 452 may include an API.

[0117] The W / A code database 454 is configured to store collected W / A codes. The W / A code database 454 is configured to store W / A codes generated by the central management server 400. The W / A code database 454 may store information for interpreting W / A codes. For example, the information for interpreting W / A codes may store information on which diagnostic entity and problem each element of a W / A code indicates. The W / A code database 454 may store W / A codes and associated diagnostic entities, diagnostic objects, locations, problems, problem causes, occurrence times, and occurrence counts. The W / A code database 454 may store W / A codes and associated detection conditions, problems, problem causes, confirmation items, and registration and correction times. The W / A code database 454 may include caution / warning criteria, including critical values, critical counts, and time ranges. The W / A code database 454 can match and store W / A codes, addresses associated with the W / A codes, building names or numbers, units, time of occurrence, and diagnosis objects. The W / A code database 454 can store information to allow creation of the table shown in Table 1. The W / A code database 454 can store project numbers, site names, building and unit numbers, W / A codes, starting times, and detection objects, and can store information to allow creation of tables such as those shown in Table 2 below. Although not shown in the drawings, the time of occurrence can include hours, minutes, and seconds.

[0118] [Table 2]

[0119] In one embodiment, the W / A code database 454 can perform the function of the above-described operation signal storage unit 402. In one embodiment, the server management unit 460 can include a fault processing unit 462 and a determination unit 464. The fault processing unit 462 may be configured to receive fault codes (which may correspond to the above-described fault signals) from the elevator side 800. The fault processing unit 462 can collect and sense fault codes from the elevator side 800 in real time. The fault processing unit 462 may be configured to analyze the fault codes and generate new fault codes.

[0120] In one embodiment, the determination unit 464 can receive a W / A code and determine what diagnostic subject and problem the W / A code indicates. The determination unit 464 can also receive a W / A code and determine the cause of the W / A code. The determination unit 464 can generate a W / A code based on the operation status signal.

[0121] In one embodiment, the determination unit 464 can perform the function of the warning determination unit 404 described above.

[0122] In one embodiment, the determination unit 464 may be configured to generate a new code or generate at least one of a caution signal, a warning signal, and a fault signal based on the W / A code stored in the W / A code database 454 and a determination criterion. The determination unit 464 may transmit the generated caution signal, warning signal, and fault signal to at least one of the repair terminal 500, the customer portal 600, and the remote management system 700. In one embodiment, the caution signal, warning signal, and fault signal may include a signal for setting a status for an elevator inspection item.

[0123] The judgment criteria may include at least one of a critical number of times and a time range. In one embodiment, the judgment criteria for a warning signal may include at least one of a critical number of times for a warning signal and a time range for a warning signal. The judgment criteria for a warning signal may include at least one of a critical number of times for a warning signal and a time range for a warning signal. The judgment criteria for a fault signal may include at least one of a critical number of times for a fault signal and a time range for a fault signal. The judgment criteria may be set by an administrator.

[0124] For example, if the number of occurrences of any one specific W / A code is equal to or greater than the critical number of times for the caution signal but less than the critical number of times for the warning signal, the determination unit 464 may generate a caution signal and then match the W / A code. If the number of occurrences of any one specific W / A code is equal to or greater than the critical number of times for the warning signal but less than the critical number of times for the fault signal, the determination unit 464 may generate a warning signal and then match the W / A code. If the number of occurrences of any one specific W / A code is equal to or greater than the critical number of times for the fault signal, the determination unit 464 may generate a fault signal and then match the W / A code. That is, if the W / A code occurs several times, it may be possible to notify at least one of the repair terminal 500, the customer portal 600, and the remote management system 700 of whether the current state is a caution state, a warning state, or a fault state.

[0125] Furthermore, if the number of occurrences of any one specific W / A code within a preset time range (warning signal time range) is equal to or greater than the warning signal critical number but less than the warning signal critical number, the determination unit 464 may generate a warning signal. If the number of occurrences of any one specific W / A code within a preset time range (warning signal time range) is equal to or greater than the warning signal critical number but less than the fault signal critical number, the determination unit 464 may generate a warning signal. If the number of occurrences of any one specific W / A code within a preset time range (fault signal time range) is equal to or greater than the fault signal critical number, the determination unit 464 may generate a fault signal. The preset time ranges (warning signal time range, warning signal time range, fault signal time range) may be set by an administrator to one week, two weeks, three weeks, four weeks, one month, etc.

[0126] In one embodiment, the determination criteria for generating at least one of the caution signal, the warning signal, and the failure signal may include the number of occurrences in a first preselected period relative to the number of occurrences in a second preselected period. For example, the determination unit 464 may generate at least one of the caution signal, the warning signal, and the failure signal in response to the number of occurrences of any one specific W / A code occurring on any day in the period from January 1 to January 31 and the number of occurrences of any one specific W / A code occurring in the period from December 1 to December 31. Here, the period from January 1 to January 31 may be the first preselected period, and the period from December 1 to December 31 may be the second preselected period.

[0127] The number of occurrences in the second preselected period relative to the number of occurrences in the first preselected period may be set by an administrator. For example, the determination unit 464 may generate a caution signal in response to determining that the number of occurrences in the first preselected period is 150% of the number of occurrences in the second preselected period, a warning signal in response to determining that the number of occurrences is 200%, and a fault signal in response to determining that the number of occurrences is 250%. That is, assuming that any one specific W / A code occurs 30 times in the second preselected period (e.g., December 1 to December 31), the determination unit 464 may generate a caution signal in response to any one specific W / A code occurring 45 times on January 15 (any date), a warning signal in response to any one specific W / A code occurring 60 times on January 20 (any date), and a fault signal in response to any one specific W / A code occurring 75 times on January 28 (any date).

[0128] In one embodiment, the ratio of the number of occurrences in the first preselected interval to the number of occurrences in the second preselected interval may be a ratio as described above, or may be an arithmetically determined value. For example, the determination unit 464 may generate a caution signal, a warning signal, and a fault signal in that order every time the number of occurrences in the first preselected interval increases by 10 times compared to the number of occurrences in the second preselected interval.

[0129] It will be appreciated that the ratio or arithmetic value may be configurable by an administrator and the criteria may be defined in other ways.

[0130] In one embodiment, the determination unit 464 may be configured to generate and notify the warning signal after generating and notifying the caution signal a predetermined number of times. For example, the determination unit 464 may be configured to generate and notify the warning signal once after notifying the caution signal three times.

[0131] In one embodiment, the determination unit 464 may transmit at least one of the W / A code, classification (any one of caution status, warning status, and failure status), diagnosis entity, number of occurrences in the previous month, number of occurrences in the current month, and cause of occurrence to at least one of the repair terminal 500, the customer portal 600, and the remote management system 700. The determination unit 464 may transmit data stored in the W / A code database 454 to at least one of the repair terminal 500, the customer portal 600, and the remote management system 700.

[0132] In this way, the central management server 400 may be configured to receive a W / A code including a problem and a diagnosis subject from each component of the elevator side 800, and then store and manage the W / A code in the W / A code database 454. The central management server 400 may be configured to generate at least one of a caution signal, a warning signal, and a failure signal based on the stored W / A code and a judgment criterion, and then transmit the generated signal to at least one of the repair terminal 500, the customer portal 600, and the remote management system 700. Accordingly, the central management server 400 may be configured to monitor operations outside of a normal range occurring in elevator components, a control panel, a monitoring panel, etc., generate at least one of a caution signal, a warning signal, and a failure signal based on a judgment criterion such as the number of operations outside of the normal range, and then transmit the generated signal to at least one of the repair terminal 500, the customer portal 600, and the remote management system 700.

[0133] The customer portal 600 can transmit information received from the central management server 400 to elevator customers. The customer portal 600 may be configured to provide users with information on whether a W / A code has occurred and a breakdown of the occurrence. Through the customer portal 600, users can connect to a site and remotely monitor the site status. The customer portal 600 is configured to provide users with detailed explanations and measures for W / A codes. The customer portal 600 may be configured to provide statistics and measures for W / A codes that have occurred during a specific period or month.

[0134] An administrator can connect to the central management server 400 through the remote management system 700. The administrator can connect to the central management server 400 through the remote management system 700 and manage W / A codes. The administrator can inquire about the occurrence history of W / A codes and the contents stored in the W / A code database 454 through the remote management system 700. The administrator can register and delete W / A codes or change related information including the judgment criteria through the remote management system 700. The administrator can register and modify information about W / A codes, such as the diagnosis entity, judgment criteria, detection conditions, explanation, purpose, cause of occurrence, and necessity of confirmation (e.g., whether an on-site confirmation is required or whether an on-site confirmation is recommended, etc.), through the remote management system 700.

[0135] 9 to 11 are diagrams illustrating exemplary screens displayed on the repair terminal 500 according to an embodiment of the present disclosure.

[0136] 9 to 11, a display screen 1010 is configured to display the address of each of a plurality of elevators, the elevator number, the building and unit number for identifying the elevator, the last maintenance date, and a warning confirmation button 1015. The screen displaying each of the elevator information includes the warning confirmation button 1015.

[0137] In one embodiment, the caution / alert confirmation button 1015 may be activated / deactivated on elevator screens requiring confirmation. In another embodiment, the caution / alert confirmation button 1015 may only be displayed on elevator screens requiring confirmation. When a user of the repair terminal 500 presses the caution / alert confirmation button 1015, a screen 1020 showing W / A code information corresponding to the elevator is displayed, as shown in FIG. 10. The display screen 1010 may display the W / A code detection period, W / A code, classification, diagnosis entity, number of occurrences last month, number of occurrences this month, etc. When an item included in the screen 1020 showing the W / A code information is touched, a corresponding W / A code related information screen 1025 is displayed, as shown in FIG. 11. The W / A code related information screen 1025 includes detection conditions, W / A code description, purpose, occurrence time, and a details button 1030. Pressing the details button 1030 may display related detailed information, such as a predicted cause (exceeding the rated load, increased mechanical interference, error occurrence, parameter error, etc.).

[0138] In one embodiment, the central management server 400 may be embodied by a processor, a memory, and a communication unit. The processor may be any type of processor or controller for performing a function, such as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other devices. The communication unit may be configured to enable the central management server 400 to communicate with other devices, such as the elevator side 800, the maintenance terminal 500, the customer portal 600, and the remote management system 700. The communication unit may be a hardware module, such as a data bus, a network interface card, a network interface chip, or a networking interface port, that transmits / receives data and / or information, or a software module, such as a network device driver or a networking program. The memory can store a number of application programs or applications, processor-readable data, and instructions. For example, the storage device can include various storage spaces such as a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, an EPROM, a flash drive, a hard drive, and a cloud using a network.

[0139] 12 is a flowchart of a process for training a central management server of an elevator maintenance management system according to one embodiment of the present disclosure. The method of FIG. 12 may be performed by the central management server 400. It may be understood that the method of FIG. 12 may be performed by a conventional computer device.

[0140] The learning in the present disclosure may be performed using an artificial intelligence model. That is, the central management server 400 may include an artificial intelligence model. In the present disclosure, the artificial intelligence model may refer to a model that trains a learning model including an artificial neural network (ANN) through a large amount of training data, optimizes parameters within the artificial neural network, and uses the trained learning model to operate a system (not shown). In one embodiment, the artificial intelligence module (not shown) may train through Machine Reading Comprehension (MRC). In one embodiment, the artificial neural network model used in the artificial intelligence module may include at least one of a convolutional neural network (CNN), a deep neural network (DNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a variational autoencoder (VAE), or a deep Q-network, or a combination thereof, but is not limited to the above examples. Learning methods may include rule-based reasoning, which generates services by reasoning on data that satisfies specific rules among input data based on specific data relationships defined by a user, and case-based reasoning, which matches matching / similar cases based on past cases to solve problems for the current case. Furthermore, inference techniques using supervised learning, unsupervised learning, reinforcement learning, neural networks, etc. may be used, but are not limited to these.

[0141] In process S905, an abnormality signal is defined in or through the central management server 400. The abnormality signal may refer to a signal that is generated when the operation of the component deviates from a normal range but is not in a complete failure state. The abnormality signal may include the W / A code described above. The definition of the abnormality signal may be changed or set by an administrator. If there is no need to change the defined definition of the abnormality signal, process S905 may be omitted.

[0142] In process S910, the central management server 400 collects the abnormality signal. In one embodiment, the central management server 400 collects the W / A code. The central management server 400 can collect the W / A code, the address where the W / A code occurred, the elevator number, the time of occurrence, etc.

[0143] In process S915, the judgment criteria are changed. The judgment criteria include criteria for the central management server 400 to generate a caution signal, a warning signal, and a fault signal based on the number of occurrences of the W / A code, the time range of occurrence, etc. The judgment criteria may be changed by an administrator. Alternatively, the central management server 400 may change the judgment criteria. Since learning is possible without changing the judgment criteria, process S915 can be omitted. In one embodiment, the judgment criteria may be the judgment criteria described with reference to FIGS. 7 and 8. When the judgment criteria are changed in process S915, the state set in process S920 is changed, thereby securing more learning data.

[0144] In process S920, the central management server 400 sets caution and warning states based on the criteria. In one embodiment, the central management server 400 can set normal operating states, fault states, and abnormal states that are not faults but require maintenance and repair. The abnormal states can include caution states and warning states. For example, the W / A code, the number of occurrences, the occurrence period, and caution / warning / normal / fault states can be matched.

[0145] In process S925, the central management server 400 receives the actual status of the components included in the elevator side 800. In one embodiment, the actual status can include a normal operating status, a fault status, and an abnormal status that is not a fault but requires maintenance and repair. The abnormal status can also include a caution status and a warning status.

[0146] In process S930, the central management server 400 matches the state set based on the criteria set in process S920 with the actual state received in process S925, and uses this as training data to train the artificial intelligence model. In one embodiment, the training data may include the W / A code and related information, the state according to the criteria, and the actual state.

[0147] In process S935, the learning result is reflected in the artificial intelligence model.

[0148] FIG. 13 is an operational flowchart illustrating a caution and warning state determination process in an elevator maintenance management system according to an embodiment of the present disclosure, along with the flow of operations.

[0149] In process S1300, elevator components, such as an inverter, a hoist motor, a main rope, a door drive motor, etc., generate an operation status signal and a first W / A code. In one embodiment, the elevator components can generate the operation status signal in response to the elevator components' operation being out of a certain range. For example, the elevator components' operation being out of a certain range may be when the communication state is determined to be unstable, when the hall button is determined to be pressed for longer than a predetermined time, when a door error occurs, when the inverter torque is out of a certain range, etc.

[0150] In one embodiment, the elevator components include an inverter, and the inverter may include a controller. The controller included in the inverter may check the operating status of the inverter and generate a W / A code according to a preset criterion.

[0151] In process S1305, the control panel detects and stores the operation status signal and the first W / A code. For example, the control panel may be configured to detect and store the first W / A code generated by the inverter. Sensors may be attached to each component (e.g., hoist motor, main rope, door drive motor, etc.) to detect the operation status of the components constituting the elevator.

[0152] In process S1310, the control panel generates a second W / A code. The control panel transmits an operation status signal, the first W / A code, and the second W / A code to the terminal. The control panel can sense the operation of the elevator component and generate an operation status signal in response to determining that the operation deviates from a certain standard. The control panel can generate an operation status signal based on the operation status of the control panel component. The control panel can transmit the first W / A code and operation status signal received from the elevator component, and the second W / A code and operation status signal generated by the control panel to the terminal.

[0153] For example, sensors may be attached to each component (e.g., hoist motor, main rope, door drive motor, etc.) to detect the operating status of the components constituting the elevator. The control panel may check the operating status of the elevator components through the sensors, generate and store a second W / A code according to a preset criterion, and transmit the second W / A code to a higher-level entity, e.g., a terminal. In one example, the control panel may include a controller and a memory. The control panel may be configured to generate, store, and transmit the second W / A code under the control of the controller.

[0154] In process S1315, the terminal generates a third W / A code and transmits the operation status signal and the first to third W / A codes to the central management server. The terminal can generate the third W / A code based on each operation status signal received from the control panel. For example, the terminal can receive an inverter torque current value in a section where the elevator is operating at rated speed and generate the third W / A code based on the received value. The terminal can generate an operation status signal based on the operation status of the terminal components. The terminal can transmit the first W / A code, second W / A code, and operation status signal received from the control panel, and the third W / A code and operation status signal generated by the terminal to the central management server.

[0155] In process S1320, the central management server stores the received operation status signal and the first W / A code to the third W / A code.

[0156] In process S1325, the central management server generates and stores a fourth W / A code based on the received operation status signal. For example, if it is determined that the landing button has been pressed for longer than a predetermined time, the central management server can generate the fourth W / A code in response to determining that the number of generated operation management signals is greater than a predetermined number.

[0157] In process S1330, the central management server determines a caution state or a warning state based on the first W / A code and the fourth W / A code. The central management server can further determine a normal state or a fault state based on the first W / A code and the fourth W / A code. The criteria for determining a caution state or a warning state are as described above.

[0158] In one embodiment, the W / A code may be configured to include only the problem, without indicating the diagnostic entity.

[0159] In the present disclosure, the inverter may include an inverter that controls the speed and torque of the elevator and an inverter that controls the doors.

[0160] In the present disclosure, elevator drive components may include a hoist, a hoisting rope, a drive sheave, a gearless motor, a power regeneration device, a brake, a rope brake, an overspeed regulator, a finger pinch prevention device, a multi-beam, a door safety device, a door hanger, etc.

[0161] In the present disclosure, when a component operates abnormally, the inverter connected to it can detect load, torque, current, etc. and generate a W / A code related to the component's abnormal operation. For example, the inverter can also detect abnormalities in a hoist.

[0162] In the present disclosure, the control panel can monitor abnormal operation of components, for example, the control panel can detect the amount of voltage applied to the control panel, control signal leakage, etc., and generate the relevant W / A code.

[0163] In the present disclosure, the terminal may have a larger memory capacity than the control panel, and the terminal can monitor the data stored in the memory of the control panel and generate a W / A code based on the accumulated data.

[0164] The method according to the present disclosure may be embodied as processor-readable code on a processor-readable recording medium provided in a server, system, equipment, computer, integrated control device, etc. used by any entity. The processor-readable recording medium includes all types of recording devices in which data to be read by a processor is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., and also includes those embodied in the form of carrier waves, such as those transmitted via the Internet. The processor-readable recording medium may also be distributed among computer systems connected via a network, so that the processor-readable code is stored and executed in a distributed manner.

[0165] The above-described devices and methods may be implemented using hardware components, software components, and / or a combination of hardware and software components. For example, the devices and components described in each embodiment may be implemented using one or more general-purpose or special-purpose computers, such as a processor, controller, arithmetic logic unit (ALU), digital signal processor, microcomputer, field programmable array (FPA), programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to the execution of software. For ease of understanding, although a single processing device may be described, those skilled in the art will recognize that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, the processing device may include multiple processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

[0166] Software may include computer programs, code, instructions, or a combination of one or more of these, which may configure a processing device to operate as desired or may instruct the processing device, either individually or collectively. The software and / or data may be permanently or temporarily embodied in any type of machine, component, physical device, virtual device, computer storage medium or device, or transmitted signal wave, for interpretation by the processing device or for providing instructions or data to the processing device. The software may be distributed across network-coupled computer systems and stored or executed in a distributed manner. The software and data may be stored on one or more computer-readable recording media.

[0167] The embodiments of the present disclosure may also be practiced in a distributed computing environment where some tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

[0168] Although each embodiment has been described above based on limited drawings, a person skilled in the art may apply various technical modifications and variations based on the above content. For example, the described techniques may be performed in a different order than described, and / or the described components of the system, structure, device, circuit, etc. may be combined or combined in a different manner than described, or may be substituted or replaced by other components or equivalents, and still achieve suitable results.

[0169] Therefore, other implementations, other embodiments, and equivalents of the claims are also within the scope of the following claims.

Claims

1. a W / A code collection unit configured to collect a code indicating an abnormal signal (W / A code) - the W / A code is generated by at least one of each of the components that operate the elevator, the control panel corresponding to the elevator, and the terminal device corresponding to the control panel, and is configured to include a code indicating a W / A code generator and a problem; a W / A code database configured to store the received W / A code, information for interpreting the W / A code, and criteria; and a judgment unit configured to set at least one of a caution state and a warning state for the elevator inspection item based on the W / A code and the judgment criteria.

2. The central management server of claim 1 , wherein the criteria include a number of occurrences of the W / A code.

3. The central management server of claim 1 , wherein the criteria includes a number of occurrences of the W / A code in a preselected time interval.

4. The central management server of claim 1 , wherein the criteria include a number of occurrences of the W / A code in a first preselected time interval and a number of occurrences in a second preselected interval.

5. The central management server of claim 1 , wherein each component that operates the elevator includes an inverter.

6. 2. The central management server of claim 1, wherein the W / A code collection unit is further configured to collect a signal indicating an operation status of the elevator, and the determination unit is further configured to generate a new W / A code based on the signal indicating the operation status of the elevator and preselected criteria.

7. The central management server of claim 6 , wherein the signal indicating the elevator's operational status is a signal configured not to indicate a diagnostic subject.

8. an inverter configured to drive an elevator and to generate a first W / A code, the first W / A code being configured to include a code indicative of a problem with the elevator's operation; a control board electrically coupled to the inverter and configured to store the first W / A code; a terminal configured to transmit the first W / A code stored in the control panel; and a central management server configured to receive the first W / A code from the terminal and set at least one of a caution state and a warning state for the elevator inspection item based on the first W / A code and preselected criteria.

9. the first W / A code further includes a code indicating the inverter; The control panel is further configured to generate and send a second W / A code to the central management server, the second W / A code being configured to include a code indicating a generator and a problem; and 9. The elevator system of claim 8, wherein the central management server is configured to set at least one of the caution state and the warning state for the elevator inspection item based on the second W / A code and the preselected criteria.

10. the first W / A code further includes a code indicating the inverter; The terminal is further configured to generate a third W / A code, the third W / A code being configured to include a code indicating a generator and a problem, and then transmit the third W / A code to the central management server; and 9. The elevator system of claim 8, wherein the central management server is configured to set at least one of the caution state and the warning state for the elevator inspection item based on the third W / A code and the preselected criteria.

11. 10. The elevator system of claim 8, wherein the central management server is further configured to receive a signal including a code indicating an elevator operation status, and to generate a fourth W / A code based on the signal including the code indicating the elevator operation status and the preselected criteria.

12. The elevator system of claim 11 , wherein the signal including the code indicating the elevator's operating status does not include a generator.

13. generating a first W / A code by an elevator drive component, the first W / A code being configured to include a code indicative of a drive problem of the elevator; sensing and storing the first W / A code by a control panel; transmitting the stored first W / A code to a central management server by the terminal; and receiving the first W / A code by the central management server, and setting at least one of a caution state and a warning state for the elevator inspection item based on the first W / A code and preselected criteria.

14. 14. The elevator remote monitoring method according to claim 13, wherein the elevator drive components include an inverter.

15. the first W / A code further includes a code indicating the inverter; generating a signal by the inverter, the signal not including a generator and including a code indicating the operating state of the elevator; collecting, by the central control server, a signal including a code indicating the operating status of the elevator; and 15. The elevator remote monitoring method according to claim 14, further comprising: generating a fourth W / A code by the central management server based on a signal including a code indicating the elevator's operating status and preselected criteria.

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