KR20080107900A - System and method for remote intervention of elevator - Google Patents

Abstract

An elevator remote-controlled system and a method is provided to reduce corrective maintenance cost due to unnecessary manpower in elevator basic malfunction by performing a reset processing in a remote site in order to recover temporary malfunction which is automatically recovered by a reset. An elevator remote-controlled system(100) comprises a remote management server and a reset administration unit. The remote management server(10) analyzes a malfunction alert of an elevator and outputs a reset signal in case that the analyzed malfunction is recoverable by the reset of an elevator controller(EL). The reset administration unit(20) resets the elevator controller in response to the input of the reset signal.

Description

Elevator remote control system and method {SYSTEM AND METHOD FOR REMOTE INTERVENTION OF ELEVATOR}

1 is a schematic view showing an internal configuration of an elevator to which embodiments of the present invention are applied.

Figure 2 is a block diagram showing the configuration of the elevator together with the elevator remote control system according to an embodiment of the present invention.

Figure 3 is a block diagram showing an elevator remote control system according to another embodiment of the present invention.

Figure 4 is a block diagram showing the elevator together with the configuration of the elevator remote control system according to another embodiment of the present invention.

5 is a block diagram showing a configuration of a communication relay unit according to an embodiment of the present invention.

Figure 6 is a block diagram showing the configuration of a remote management server according to an embodiment of the present invention.

7 is a block diagram showing the relationship between the elevator control unit, the power supply unit and the reset management unit according to an embodiment of the present invention.

8 is a block diagram showing the configuration of a reset management unit according to an embodiment of the present invention.

9 is a block diagram showing a configuration of a magnetic contactor driving unit according to an embodiment of the present invention.

10 is a block diagram showing a configuration of a reset management unit according to another embodiment of the present invention.

11 is a functional block diagram of a safety reset logic unit according to an embodiment of the present invention.

12 is a flow chart showing a remote reset method of the elevator remote control system according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

ELC: Elevator Control Unit ELD: Elevator Driver

10: remote management server 11: elevator information storage unit

12: fault information processing unit 13: communication unit

20, 20A, 20B: Reset management unit 21: First data communication unit

22: second data communication unit 23, 23A: control unit

24: magnetic contactor drive unit 25: magnetic contactor

26: storage unit 27: safety reset logic unit

30: communication relay unit 31: first communication unit

33: second communication unit 35: storage unit

37: control unit 241: reset request signal detection unit

243 switch 245 magnetic contactor connector

The present invention relates to an elevator control system and method, and more particularly, to an elevator remote control system and method for remotely controlling a control unit of an elevator when a failure occurs.

The control unit of the conventional elevator monitors the driving state of the elevator to form state data, and when an elevator failure occurs, it forms alarm information indicating the type and timing of the failure. Status data is stored in the elevator operation history storage unit, alarm information is transmitted to the remote management server operated by the administrator. When alarm information is sent to the remote management server, the administrator places a repairman at the elevator site where the failure occurred and takes care of the failure. As such, a repair technician is placed immediately after a breakdown using a conventional remote monitoring system for the safety and quick response of the customer.However, when the operator actually arrives at the site, the elevator is operating normally. Unnecessary costs are being spent. Furthermore, in the field where repair is actually required, trouble repair delay due to lack of personnel and customer complaints are received.

The present invention provides an elevator control system and method for automatically recovering the operation of an elevator remotely in case of failure.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like elements are described with the same reference numerals. However, in the following description, when there is a risk of unnecessarily obscuring the gist of the present invention, a detailed description of well-known functions and configurations will be omitted.

First, a configuration of an elevator for controlling with an elevator remote control system according to various embodiments of the present disclosure will be described with reference to FIG. 1. The elevator EL includes an elevator controller ELC, an elevator driver ELD, a storage ELM, and a data communication ELT, and further includes a car and a door not shown in FIG. 1. do.

The storage unit ELM may include a first storage unit for storing fault codes corresponding to a plurality of failure types, and a second storage unit for storing state data periodically formed in the elevator controller ELC. The elevator driver ELD includes a vertical drive motor for moving the elevator, a door drive motor for opening and closing the elevator door, and the like. The data communication unit ELT may be implemented as a gate array.

The elevator controller ELC controls the elevator driver ELD, monitors the running state of the elevator, and periodically generates state data. The state data includes elevator operation data and safety data. The safety data includes door state data and motor state data. The door state data is binary data indicating an open or closed state of the door, and the motor state data is binary data indicating a driving or stopped state of the motor. In addition, the elevator controller ELC determines whether a failure occurs based on at least one state data periodically formed, and selects a failure code corresponding to a failure type generated in the first storage unit to form failure information.

Referring to FIG. 2, an elevator remote control system 100 according to an embodiment includes a remote management server 10 and a reset manager 20.

The remote management server 10 is a server for managing the operating state of at least one elevator installed in a plurality of areas, receives the state data and fault information formed in the elevator control unit (ELC), analyzes the fault information, and generated the fault In case of a fault recoverable by this reset, a reset signal is output. Referring to FIG. 3, the remote management server 10 includes an elevator information storage unit 11, a failure information processing unit 12, and a communication unit 13. The elevator information storage unit 11 includes an elevator state storage unit for storing state data periodically formed in each elevator control unit ELC, and a reference information storage unit. The reference information storage unit includes a failure history storage unit of each elevator and preprocessing information unit for each failure code. The failure code preprocessing information includes the failure code processing information input during the design of the system 100 and the failure processing result information of all elevators managed by the remote management server 10. When the fault information of the elevator is input, the fault information processing unit 12 stores the input fault information in the fault history storage unit of the elevator, and the fault codes included in the fault information and the fault codes stored in the elevator information storage unit 11. Based on the preprocessing information, it is analyzed whether the generated failure is a failure that can be recovered by a reset of the elevator control unit ELC. The failure information processing unit 12 forms a reset signal if the failure is recoverable by reset, and forms a batch request message of the repairman when the failure cannot be recovered by reset. In addition, the failure information processing unit 12 receives failure processing result information corresponding to each failure information, and updates the failure history information of each elevator and the processing information for each failure code. The communication unit 13 transmits a reset signal through a network such as a PSTN, and receives failure information and failure processing result information.

The reset manager 20 resets the elevator controller ELC in response to the input of the reset signal. According to the design of the system 100, the reset manager 20 receives the state data from the elevator controller ELC, and when a reset signal is input, the reset manager 20 may determine whether to reset the car by referring to the elevator state data. In addition, the reset management unit 20 detects an additional input of the same failure information from the elevator control unit ELC for a predetermined time after the elevator control unit ELC is reset, and reflects the detection result to indicate completion of failure processing or failure failure processing. Failure processing result information can be formed.

The remote management server 10 and the reset manager 20 transmit and receive the reset signal through a network such as a PSTN, and the state data and the reset signal are transmitted and received with the elevator and the reset manager 20 based on short-range communication.

As shown in FIG. 4, the elevator remote control system 200 according to another embodiment of the present invention includes a remote management server 10, a reset management unit 20A and a communication relay unit 30A. The communication relay unit 30A transmits status data and fault information periodically output from the elevator control unit ELC to the remote management server 10, and resets the reset signal output from the remote management server 10 to the reset management unit 20A. And the failure management result information formed in the reset management unit 20A to the remote management server 10. Referring to FIG. 5, the communication relay unit 30A includes a first communication unit 31 for communicating with an elevator EL and a reset management unit 20A, a second communication unit 33 for communicating with a remote management server 10, And a storage unit 35 and a control unit 37 for storing elevator state data. The control unit 37 sequentially stores the elevator state data received through the first communication unit 31 in the storage unit 35, and when more than a predetermined amount of state data is stored in the storage unit 35, the control unit 37 stores the elevator state data. Status data is transmitted to the remote management server 10 via the second communication unit 33 at a time. Unlike the status data, the failure information is immediately transmitted to the remote management server 10 through the second communication unit 33 under the control of the control unit 37.

The reset manager 20A basically performs the same function as the reset manager 20 of the system 100 except for receiving a reset signal through the communication relay 30A.

Data transmission and reception between the communication relay unit 30A and the remote management server 10 is performed through a network such as a PSTN, and the data between the communication relay unit 30A, the reset management unit 20A, the communication relay unit 30A, and the elevator. Sending and receiving takes place in the near field.

Referring to FIG. 6, an elevator remote control system 300 according to another embodiment of the present invention includes a remote management server 10, a reset management unit 20B, and a communication relay unit 30B. The reset manager 20B of the system 300 performs all functions of the reset managers 20 and 20A of the system 100 and the system 200, and additionally includes status data output from the elevator controller ELC. The fault information is transmitted to the communication relay unit 30B. The communication relay unit 30B performs the basic functions of the communication relay unit 30A of the system 200, but receives the state data and the failure information through the reset management unit 20B without being directly transmitted from the elevator control unit ELC. . Accordingly, the system 300 does not need to include a separate short-range communication device for data transmission between the elevator control unit ELC and the communication relay unit 30B.

Each of the reset managers 20, 20A, and 20B described above may be provided in each elevator to correspond one-to-one with the elevator controller ELC. Alternatively, the reset managers 20, 20A, and 20B may be provided outside the elevator, and one reset manager 20, 20A, and 20B may manage the reset of all or some elevator controllers ELC in the region. Therefore, in FIGS. 2, 4, and 6, the elevator controller ELC, the reset management units 20, 20A, 20B, and the remote management server 10 are briefly represented as one-to-one correspondence with each other, but one remote management server ( The number of elevator control units ELC and reset management units 20, 20A and 20B corresponding to 10) and the number of elevator control units ELC corresponding to one reset management units 20, 20A and 20B are determined in the design of the system. It can be changed in various ways.

Hereinafter, the reset management unit 20, 20A, 20B of the above-described elevator remote control system 100, 200, 300 will be described in more detail.

Referring to FIG. 7, when the reset signal is input, the reset managers 20, 20A, and 20B turn off the power supplied to the elevator controller ELC from the power supply PS and turn on the elevator controller ELC. Reset. The reset of the elevator controller ELC includes not only the reset of the elevator controller ELC itself but also the reset of the elevator driver ELD controlled by the control of the elevator controller ELC. That is, "reset" means that the elevator controller ELC and the elevator driver ELD are initialized to a state in which the elevator can operate normally.

As shown in FIG. 8, the reset managers 20, 20A, and 20B according to an exemplary embodiment may transmit and receive the first data communicator 21 to receive elevator status data and fault information, and the fault process result information and the reset signal. A second data communication unit 22, a control unit 23, a magnetic contactor driver 24, and a magnetic contactor 25 are included.

The control unit 23 forms a reset request signal when a reset signal formed in the remote management server 10 is input. Preferably, the controller 23 forms a reset request signal in the form of a single pulse. In addition, the controller 23 outputs the reset request signal, detects whether additional failure information formed in the elevator controller ELC is input for a predetermined time, and forms the failure processing result information by reflecting the detection result.

The magnetic contactor driver 24 forms a reset execution signal in response to the input of the reset request signal. Referring to FIG. 9, the magnetic contactor driver 24 includes a reset request signal detector 241, a switch 243, and a magnetic contactor connector 245. When the reset request signal detecting unit 241 detects an input of the reset request signal, the reset request signal detecting unit 241 forms a single pulse type detection signal. The reset request signal detector 241 may be designed as an integrating circuit composed of a capacitor and a resistor. The switch 243 performs an instantaneous switching operation according to the input of the detection signal in the form of a single pulse. The switch 243 may be implemented as an integrated transistor (eg, a MOSFET) to perform an instantaneous switching operation. The magnetic contactor connector 245 has a first terminal connected with the magnetic contactor 25 and a second terminal connected with the ground. According to the instantaneous switching of the switch 243, the second terminal is momentarily disconnected from the ground and then connected again. The instantaneous disconnection of the second terminal and ground refers to the formation of the reset execution signal.

The magnetic contactor 25 instantly switches the power supply between the elevator control unit ELC and the power supply unit PS in response to the input of the reset execution signal. Preferably, the magnetic contactor 25 is implemented as a power switch that is turned on and off by the drive coil and the drive coil. The power switch switches the power supply of the elevator controller ELC from the power supply unit PS depending on whether the current flows to the driving coil. The switching-on state of the magnetic contactor 25 is a state in which no current is supplied to the driving coil (that is, a power switch closed state in which electric power is supplied to the elevator control unit ELC), and the magnetic contactor 25 normally maintains the switching-on state. do. The switching off state of the magnetic contactor 25 is a state in which a current is supplied to the drive coil (that is, a power switch open state in which electric power is not supplied to the elevator control unit ELC). Therefore, when the reset execution signal is input, the magnetic contactor 25 is momentarily switched off (power switch open) and then switched on (power switch closed). As a result, the power supplied to the elevator controller ELC is momentarily cut off and then supplied again.

Referring to FIG. 10, the reset managers 20, 20A, and 20B for performing a safety reset according to another embodiment may include the first and second data communicators 21 and 22, the controller 23A, and the magnetic contactor driver 24. ), The magnetic contactor 25, the storage unit 26, and a safety reset logic unit 27 that determines whether or not the reset is possible and outputs a resettable signal or a non-resettable signal. Since the respective configurations and functions of the first data communication units 21 and 22, the magnetic contactor driver 24, and the magnetic contactor 25 are the same as those of the embodiment described with reference to FIGS. 8 and 9, the description thereof will be omitted.

The storage unit 26 stores elevator state data including elevator driving data and safety data received through the first data communication unit 21 under the control of the controller 23A.

The controller 23A basically performs a function of the controller 23 of the reset managers 20, 20A, and 20B shown in FIG. 8, and furthermore, a reset formed in the remote management server 10 through the second data communication unit 22. When the signal is input, it forms a reset determination request signal. In addition, when the reset disable signal formed by the safety reset logic unit 27 is input, the controller 23A forms fault processing result information including a reset disable message, and the remote management server 10 is connected to the second data communication unit 22. Request transmission of failure result information.

When the reset determination request signal is input, the safety reset logic unit 27 determines whether the reset is possible based on the stored safety data, and outputs a resettable signal or a reset disable signal according to the determination result. The safety reset logic unit 27 determines a safe state by logically multiplying the motor state data M and the door state data D among safety data stored in the storage unit 26. For example, as shown in FIG. 11, when the safety reset logic unit 27 is implemented by AND gate, a reset determination request signal is input to the safety reset logic unit 27 (logical state '1'), and the motor Is a stop state (1) and the door is closed state (1), that is, a resettable signal is output when the safety reset condition (1) is satisfied. When the motor is being driven ('0') or the door is open ('0'), that is, not in the safety reset condition (0), the safety reset logic section 27 outputs a reset disable signal. By providing the safety reset logic unit 27 for determining the resettable state as described above, it is possible to prepare for a safety accident that may occur due to the reset. Meanwhile, FIG. 11 is an example of determining whether reset is possible based on motor state data and door state data among safety data, and shows an example in which the safety reset logic unit 27 is implemented by two logical products. The number can be designed in various ways depending on the type of safety data.

Hereinafter, an example of a remote reset method using an elevator remote monitoring system will be described with reference to FIGS. 1 to 11 and 12.

According to one embodiment of the invention, the remote management server 10 determines whether to receive the failure information (S11). At this time, the remote management server 10 of the system 100 shown in FIG. 2 receives fault information directly from the elevator, and the remote management server 10 of the system 200 shown in FIG. 4 uses the communication relay unit 30A. Fault information is received through, and the remote management server 10 of the system 200 shown in FIG. 4 receives the fault information transmitted to the communication relay unit 30B via the reset manager 20B.

The remote management server 10 analyzes the elevator status data and the failure information (S12), and restores the reset based on the failure code included in the elevator failure information and the processing information for each failure code stored in the elevator information storage unit 11. It is determined whether the failure is possible (S13). If the failure that can be recovered by reset, the remote management server 10 forms and transmits a reset signal that can be recovered by reset (S14), and if it is a failure that cannot be recovered by reset, forms and transmits a repair engineer batch request message (S18). . The repairman assignment request message is transmitted to the communication terminal held by the repairman.

Each of the reset managers 20, 20A, and 20B shown in FIGS. 2, 4, and 6 described above receives a reset signal and performs a reset of the elevator controller ELC. The reset management unit 20, 20A, 20B determines whether the same failure information formed from the elevator control unit ELC is additionally input for a predetermined time after performing the reset, and forms the failure processing result information according to the determination result so that the remote management server 10 To send). As described above, the reset management unit 20B of the system 300 of FIG. 6, which performs the reset only in a state where the elevator is safe to perform the reset, determines that the reset management unit 20B includes failure processing result information including a reset disable signal. It may be formed.

The remote management server 10 receives and analyzes the failure processing result information (S15), and determines whether the failure processing is completed (S16). When the failure processing is completed, the remote management server 10 stores the failure processing result information in the elevator information storage unit 11 (S17). If the failure processing is not completed, a repair engineer batch request message is formed and transmitted (S18).

While the invention and its various functional components have been described in particular embodiments, the invention may be implemented in hardware, software, firmware, middleware, or a combination thereof, and the system, subsystem, components, or combination thereof. It should be understood that it can be utilized as subcomponents. If implemented in software, the elements of the invention are instructions / code segments for performing the necessary tasks. The program or code segments may be stored in a machine readable medium, such as a processor readable medium, a computer program product, or via a transmission medium or communication link by a computer data signal embodied in a carrier wave or a signal modulated by a carrier. Can be sent. Machine readable media or processor readable media may include any medium that can store or transmit information in a form readable and executable by a machine (eg, processor, computer, etc.). In addition, although the present invention has been described in connection with some embodiments herein, various modifications and changes can be made without departing from the spirit and scope of the invention as will be understood by those skilled in the art. You should know that. Also, such modifications and variations are intended to fall within the scope of the claims appended hereto.

According to the above embodiments, the temporary failure that is automatically repaired by the reset of the elevator is directly reset at a remote location, and if the reset is not possible, a repair technician is arranged to reduce the cost of troubleshooting due to unnecessary manpower in case of a simple elevator failure. Can shorten the troubleshooting time.

Claims (16)

A system for remotely controlling a control unit of an elevator, A remote management server analyzing the failure information of the elevator and outputting a reset signal when the analyzed failure is a failure recoverable by the reset of the elevator control unit; And And a reset manager for resetting the elevator controller in response to the input of the reset signal. Control the operation of the elevator, monitor the operating state of the elevator to form state data periodically, analyze the state data to determine whether a failure occurs, and when the failure occurs elevator control including an elevator control unit for forming failure information As a remote control system, A remote management server analyzing the failure information and outputting a reset signal when the analyzed failure is a failure recoverable by the reset of the elevator controller; And And a reset manager for resetting the elevator controller in response to the input of the reset signal. The method of claim 2, The reset management unit receives elevator state data from the elevator control unit, and includes a safety reset logic unit for determining whether to reset the elevator control unit by referring to the elevator state data when the reset signal is input. The method of claim 3, The reset management unit further includes a storage unit for storing the elevator state data that is periodically formed, And the safety reset logic unit determines the reset when the state data stored in the storage unit corresponds to a condition for safely resetting the elevator. The method according to claim 2 or 3, The reset management unit after the reset of the elevator control unit, reflecting whether the same failure information is additionally formed in the elevator control unit to form the fault processing result information and transmits to the remote management server, elevator remote control system. The method of claim 5, The remote management server analyzes the failure processing result information to form a repair engineer batch request message, elevator remote control system. The method according to claim 2 or 3, The elevator includes a first storage unit for storing a failure code corresponding to a plurality of failure types; And a second storage unit for storing the periodically formed state data for a predetermined period of time. The elevator controller analyzes a failure type based on at least one state data stored in the second storage unit when the failure occurs, and selects the failure code corresponding to the analyzed failure type in the first storage unit. Elevator remote control system to form fault information. The method according to claim 2 or 3, Transmitting the state data periodically formed in the elevator control unit to the remote management server, transmitting the failure information formed in the elevator control unit to the remote management server, receiving a reset signal formed in the remote management server And a communication relay unit for transmitting to the reset management unit. The method according to claim 2 or 3, The reset of the elevator control unit includes turning off and on the power supplied to the elevator control unit in turn. The method according to claim 2 or 3, The reset management unit, A magnetic contactor for switching the power supply to the elevator control unit; And a control unit for controlling switching of the magnetic contactor in response to the input of the reset signal. The method of claim 10, And the reset manager further includes a magnetic contactor driver controlled by the controller of the reset manager to switch supply of driving power to the magnetic contactor. The method of claim 11, The magnetic contactor drive unit, A magnetic contactor connector comprising a first terminal connected to the magnetic contactor and a second terminal connected to ground; A switch unit for switching the connection between the ground and the second terminal; And a reset request signal detection unit controlled by the control unit of the reset management unit to control switching of the switch unit. In the elevator remote control method, An elevator control unit monitors the driving state of the elevator and periodically generates state data, analyzes the state data to determine whether a failure occurs, and generates and transmits failure information when a failure occurs; Receiving, by the remote management server, status data and fault information; Analyzing, by the remote management server, the failure information and determining whether the generated failure is a failure that can be recovered by a reset; Outputting, by the remote management server, a reset signal in case of a failure recoverable by the reset; And resetting the elevator control unit according to the reset signal by a reset manager. The method of claim 13, Resetting the elevator control unit, Determining whether an elevator state is a safety reset condition based on the elevator state data when performing the reset; And performing a reset of the elevator control unit if the determination result is a safe reset condition. The method according to claim 13 or 14, After the reset management unit performs the reset of the elevator control unit, forming and transmitting failure processing result information reflecting whether or not the same failure information is additionally formed in the elevator control unit; The remote management server further comprises the step of analyzing the failure processing result information to form a repair engineer batch request message, elevator remote control method. A computer readable storage medium storing computer executable instructions for performing an elevator remote control method. The method, An elevator control unit monitors the driving state of the elevator and periodically generates state data, analyzes the state data to determine whether a failure occurs, and generates and transmits failure information when a failure occurs; Receiving, by the remote management server, status data and fault information; Analyzing, by the remote management server, the failure information and determining whether the generated failure is a failure that can be recovered by a reset; Outputting, by the remote management server, a reset signal in case of a failure recoverable by the reset; And resetting the elevator control unit in accordance with the reset signal by a reset management unit.

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