TWI761063B - Elevator system - Google Patents

Abstract

The present invention provides an elevator system that can predict failure when the possibility of failure is high. An elevator system (1) includes a monitoring system (3) and an elevator (2). The elevator (2) is provided with a plurality of units (5) and a control unit (6). Each of the units (5) includes a cargo (7). The control unit (6) manages the allocation of calls to the plurality of units (5). The monitoring system (3) is provided with a collection unit (14) and a prediction unit (15). The collection unit (14) collects diagnosis data of a second unit among the plurality of units (5) which has not transmitted failure information when receiving failure information from a first unit among the plurality of units (5). The predicting unit (15) performs failure prediction of the second unit based on the diagnostic data when the diagnostic data of the second unit has been collected by the collection unit (14).

Description

elevator system

The present invention relates to an elevator system.

Patent Document 1 discloses an example of a system for collecting data from an elevator machine. The system predicts the failure period of the elevator machine based on the collected data.

(prior art literature) (patent literature)

Patent Document 1: Japanese Patent Laid-Open No. 2009-40585

However, the system of Patent Document 1 collects data periodically. Therefore, failure prediction based on the collected data is performed at a fixed frequency irrespective of the probability of failure.

The present invention is directed to solving the above-mentioned problems. The present invention can provide an elevator system capable of performing failure prediction when the probability of failure is high.

The elevator system of the present disclosure is provided with: a control unit for managing the distribution of calls to the plurality of units in an elevator having a plurality of units each including a car; and a collection unit for a first unit among the plurality of units When the fault information is received, the diagnostic data of the second unit that does not transmit the fault information among the plurality of units is collected; and the predicting unit, when the diagnostic data of the second unit is collected by the collecting unit, performs the second unit according to the diagnostic data. unit failure prediction.

With the elevator system of the present invention, failure prediction can be performed when the probability of failure in the elevator is high.

1: Elevator system

2: Elevator

3: Monitoring system

4: Lifting channel

5: Unit

5A: Unit A

5B: Unit B

5C:C unit

6: Control Department

7: Cabin

8: main cable

9: winch

10: Balance Weight

11: Control panel

12: Monitor the server

13: Memory Device

14: Collection Department

15: Forecasting Department

16: Notification Department

100a: Processor

100b: memory

200: Dedicated hardware

FIG. 1 is a configuration diagram of an elevator system according to Embodiment 1. FIG.

FIG. 2 is a diagram showing an example of information memorized by the memory device of Embodiment 1. FIG.

FIG. 3 is a diagram showing an example of the failure prediction by the monitoring system of the embodiment 1. FIG.

FIG. 4 is a diagram showing an example of failure prediction by the monitoring system of the implementation type 1. FIG.

FIG. 5 is a diagram showing an example of failure prediction by the monitoring system of the implementation type 1. FIG.

FIG. 6 is a flowchart showing an example of the operation of the monitoring system of Embodiment 1. FIG.

FIG. 7 is a hardware configuration diagram of a main part of the elevator system of Embodiment 1. FIG.

A mode for implementing the present invention will be described with reference to the drawings. In each figure, the same code|symbol is attached|subjected to the same or corresponding part, and the repeated description is abbreviate|omitted or abbreviate|omitted as appropriate.

Implementation Type 1

FIG. 1 is a configuration diagram of an elevator system 1 according to Embodiment 1. As shown in FIG.

The elevator system 1 includes an elevator 2 and a monitoring system 3 .

The elevator 2 is suitable, for example, for a building having a plurality of floors. In the building, a lift passage 4 of the elevator 2 is provided. The lift passage 4 is an elongated space in a vertical direction covering a plurality of floors. The elevator 2 is provided with a plurality of units 5 and a control unit 6 .

Each unit 5 is provided with a cabin 7 . The car 7 is a machine that travels in the vertical direction in the lift passage 4 and transports users and the like between a plurality of floors. In such an example, each unit 5 is provided with the main rope 8 , the hoisting machine 9 , the balance weight 10 , and the control panel 11 . The main rope 8 is a rope (ropo) that supports the load of the car 7 in the lift tunnel 4 . The hoist 9 series is coiled with a main cable 8 . The hoisting machine 9 is a machine for driving the car 7 by winding up the main rope 8 or the like. The balance weight 10 is a machine that balances the load applied to the main rope 8 and the cage 7 on both sides of the hoisting machine 9 . The control panel 11 is a part that controls the operation of the unit 5 . The operation of the unit 5 controlled by the control panel 11 includes, for example, the operation of the car 7 . In this example, the control panel 11 has a function of detecting the occurrence of a malfunction of the unit 5 . The control panel 11 transmits fault information when the occurrence of a fault is detected. The failure information is information indicating the occurrence of a failure of the unit 5 . The failure information includes information identifying the unit 5 in which the failure occurred. The control panel 11 has the function of acquiring the diagnostic data of the unit 5 . The diagnostic data is the data used in the failure prediction of unit 5 . The diagnostic data are information on the car 7 such as the position, speed, and stowage weight of the car 7 , information on the operation of the hoisting machine 9 , and information on the state of the guide rails that guide the running of the car 7 and the balance weight 10 , etc. .

The control unit 6 is a part that controls the operation of the elevator 2 . The operation controlled by the control unit 6 includes, for example, management of calls assigned to a plurality of units. The call managed by the control unit 6 is, for example, a waiting area call registered by the user at the waiting area of the elevator 2 . The control unit 6 is, for example, the user The registered seat call is assigned to any one of the plurality of units 5 . The control panel 11 of the unit 5 to which the call is assigned responds to the call to drive the car 7.

The monitoring system 3 includes a monitoring server 12 and a memory device 13 .

The monitoring server 12 is a server device that monitors the state of the elevator 2 . The monitoring server 12 is installed, for example, at a distant place of the building in which the elevator 2 is installed. The monitoring server 12 is connected to the elevator 2 via a communication network such as the Internet or a telephone line. The monitoring server 12 includes a collection unit 14 , a prediction unit 15 , and a notification unit 16 .

The collection part 14 is a part which collects diagnostic data from each unit 5 of the elevator 2 . The collection unit 14 transmits, for example, a request signal for requesting diagnostic data to each unit 5 . The collecting unit 14 collects diagnostic data from the respective units 5 to be transmitted in response to the request signal. Here, information such as diagnostic data and failure information collected from each unit 5 to the collecting unit 14 may be relayed, for example, by the control unit 6 . In normal times, the collection unit 14 may periodically transmit the request signal.

The prediction part 15 is a part which predicts failure of each unit 5 of the elevator 2 . The result of the failure prediction by the prediction unit 15 includes the presence or absence of the failure. The result of the failure prediction may also include information such as the time period when the failure is predicted to occur, and the type of the failure to be predicted.

The notification unit 16 is a part that notifies the control unit 6 when the prediction unit 15 predicts that any one of the units 5 will fail. The notification unit 16 can also notify the control unit 6 to include, for example, the result of the failure prediction by the prediction unit 15 .

The memory device 13 is a device for storing information. The memory device 13 memorizes, for example, the failure information transmitted from any one of the units 5 in the elevator 2 . The memory device 13 memorizes the diagnostic data transmitted from each unit 5 of the elevator 2 . The memory device 13 stores the result of the failure prediction by the prediction unit 15 . The memory device 13 stores information classified according to the blocks of the elevator 2 . The block of elevator 2 is composed of a plurality of units 5 when some or all of the categories. The block of the elevator 2 includes, for example, a unit 5 having a relatively recent operation start time among the plurality of units 5, and the like. Alternatively, the block system of the elevator 2 may also include, for example, the unit 5 that is arranged in a relatively close position among the plurality of units 5, and the like. The memory device 13 can also be part of the monitoring server 12 .

Next, an example of the information recorded in the memory device 13 will be described with reference to FIG. 2 .

FIG. 2 is a diagram showing an example of information recorded in the memory device 13 of the first embodiment.

In FIG. 2 , the information of the block of the elevator 2 memorized by the memorizing device 13 is displayed. In this example, the memory device 13 memorizes the units 5 included in the same block, A unit 5A, B unit 5B and C unit 5C, as the units 5 included in the same elevator 2 block.

Next, an example of failure prediction by the monitoring system 3 will be described with reference to FIGS. 3 to 5 .

3 to 5 are diagrams showing examples of failure prediction by the monitoring system 3 of the embodiment 1. FIG.

As shown in FIG. 3 , for example, when a failure occurs in the B unit 5B, the control panel 11 of the B unit 5B transmits the failure information to the collection unit 14 of the monitoring server 12 . The collection unit 14 is based on the received failure information. The unit 5 for identifying the transmission source is the B unit 5B.

The memory device 13 stores the fault information transmitted from the B unit 5B.

As shown in FIG. 4 , the collecting unit 14 of the monitoring server 12 that has received failure information from any one of the units 5 collects diagnostic data from other units included in the same block as the unit 5 . In this example, the collecting unit 14 collects diagnostic data from the A unit 5A and the C unit 5C included in the same block as the B unit 5B.

The prediction unit 15 predicts the failure of each unit 5 based on the diagnostic data collected by the collection unit 14 . In this example, the collection unit 14 performs failure prediction for each of the A unit 5A and the C unit 5C.

The memory device 13 stores the diagnostic data calculated from the A unit 5A and the C unit 5C. In addition, the memory device 13 memorizes the results of the failure prediction for the A unit 5A and the C unit 5C.

As shown in FIG. 5 , when the prediction unit 15 predicts that any one of the units 5 will fail, the notification unit 16 notifies the control unit 6 . In this example, the prediction unit 15 predicts that the A unit 5A will fail. At this time, the notification part 16 notifies the control part 6 of the failure prediction result of the A unit 5A which is predicted to fail.

The control unit 6 recognizes the unit 5 predicted to fail as the A unit 5A based on the notification from the notification unit 16 . The control unit 6 controls the operation of the elevator 2 so that the C unit 5C which is not predicted to fail has a higher priority than the unit 5 which is predicted to fail. For example, the control unit 6 controls the operation of the elevator 2 by assigning a call to the C unit 5C when it can be assigned to both the A unit 5A and the C unit 5C. Alternatively, the control unit 6 can control the operation of the elevator 2 so as not to assign a call to the unit 5 predicted to fail when there is an excess number of units 5 to which the call can be allocated.

Alternatively, the control unit 6 may, for example, notify the user of the elevator 2 that the failure of the C unit 5C is not predicted. The prompting to the user can also be performed, for example, by means of a waiting area display panel, a hall lantern, or the like. The control unit 6 may notify, for example, the manager of the elevator 2 or the like that the failure of the A unit 5A is predicted.

Here, the B unit 5B that transmits fault information is taken as an example of the first unit. Take the A unit 5A that has not transmitted the fault information as an example of the second unit. Take the C unit 5C, which does not transmit fault information and has no predicted fault occurrence, as an example of the third unit.

Next, an example of the operation of the monitoring system 3 will be described with reference to FIG. 6 .

FIG. 6 is a flowchart showing an example of the operation of the monitoring system 3 of the embodiment 1. FIG.

In step ST1 , the collection unit 14 determines whether or not failure information has been received from any one of the units 5 . When the determination result is YES, the operation of the monitoring system 3 proceeds to step ST2. When the determination result is NO, the operation of the monitoring system 3 proceeds to step ST1 again.

In step ST2, the collecting unit 14 identifies the unit 5 that has received the failure information. The collection unit 14 reads the information of the identified block of the unit 5 from the memory device 13 . After that, the operation of the monitoring system 3 proceeds to step ST3.

In step ST3 , the collection unit 14 determines whether or not collection of diagnostic data has been completed for the read block. For example, the collection unit 14 determines that the collection of the diagnostic data is completed when the diagnostic data has been collected for all the cells 5 included in the read block for which the failure information has not been transmitted. When it is determined that the collection of the diagnostic data has not been completed, the operation of the monitoring system 3 proceeds to step ST4. When it is determined that the collection of the diagnostic data is completed, the operation of the monitoring system 3 ends.

In step ST4, the collecting unit 14 collects diagnostic data from any unit 5 that has not collected diagnostic data among the units 5 included in the read block and that have not transmitted fault information. After that, the operation of the monitoring system 3 proceeds to step ST5.

In step ST5, the prediction part 15 performs failure prediction based on the diagnostic data for the unit 5 which collected the diagnostic data. After that, the operation of the monitoring system 3 proceeds to step ST6.

In step ST6 , the notification unit 16 determines whether or not a predicted failure has occurred in the prediction unit 15 with respect to the unit 5 for which failure prediction has been performed. When the determination result is YES, the operation of the monitoring system 3 proceeds to step ST7. When the determination result is NO, the operation of the monitoring system 3 proceeds to step ST3.

In step ST7 , the notification unit 16 notifies the control unit 6 of the prediction result regarding the unit 5 in which the occurrence of the failure is predicted by the prediction unit 15 . After that, the operation of the monitoring system 3 proceeds to step ST3.

In addition, the memory device 13 can also store information of a plurality of blocks. A plurality of blocks may also include repeated units 5 with each other.

As described above, the elevator system 1 of Embodiment 1 includes the monitoring system 3 and the elevator 2 . The elevator 2 is provided with a plurality of units 5 and a control unit 6 . Each unit 5 contains a car 7 . control unit 6 The system manages the assignment of calls to a plurality of units 5 . The monitoring system 3 includes a collection unit 14 and a prediction unit 15 . The collecting unit 14 collects the diagnostic data of the second unit among the plurality of units 5 that does not transmit the trouble information when the trouble information is received from the first unit among the plurality of units 5 . When the collecting unit 14 collects the diagnostic data of the second unit, the predicting unit 15 predicts the failure of the second unit based on the diagnostic data.

In the elevator 2, a plurality of units 5 may start to operate at the same time. In this case, for example, a failure due to deterioration over time may occur between the units 5 that are close to each other at the timing when the operation starts. In addition, in the elevator 2, the units 5 whose installation positions are close to each other are similarly affected by an earthquake or the like. Therefore, a failure due to the influence of an earthquake or the like may occur when the units 5 whose installation positions are close to each other are close to each other. In this way, when a failure occurs in any one of the units 5, there is a high possibility that the same failure occurs in the other units 5. Since the monitoring system 3 collects the diagnostic data of the other units 5 of the elevator 2 when a failure occurs in any one of the units 5 of the elevator 2, the failure prediction can be performed when the possibility of failure in the elevator 2 is high. Thereby, the occurrence of the failure of the elevator 2 can be predicted, and it can be detected in advance.

In addition, the monitoring system 3 includes a memory device 13 . The memory device 13 stores the failure information transmitted from any one of the plurality of units 5 and the diagnostic data of each unit 5 collected by the collecting unit 14 .

Since the memory device 13 stores diagnostic data and the like, the monitoring system 3 can observe the temporal changes and the like of the unit 5 . The prediction unit 15 can also perform failure prediction using the past diagnostic data memorized by the memory device 13 during failure prediction. In this case, the prediction unit 15 can more accurately predict the failure.

In addition, the monitoring system 3 includes a notification unit 16 . The notification unit 16 notifies the control unit 6 when the prediction unit 15 predicts the occurrence of the failure of the second unit.

Further, when the control unit 6 receives the notification from the notification unit 16, it assigns a call to the third unit of the plurality of units 5 for which the occurrence of the failure is not predicted, with priority over the second unit.

The control unit 6 can obtain information on whether the occurrence of a failure is predicted for any one of the units 5 . Thereby, the control part 6 can manage the operation of the elevator 2 based on the prediction result of the occurrence of a failure. The control unit 6 suppresses the use of the unit 5 whose occurrence of the failure is predicted, thereby allowing the user to use the unit 5 in a good state. Moreover, the control part 6 can present the unit 5 whose occurrence of failure is not predicted to the user. Thereby, since at least one of the units 5 can be notified to the user that it is in a good state, the control unit 6 can give the user of the elevator 2 a sense of security.

Next, an example of the hardware configuration of the elevator system 1 will be described using FIG. 7 .

FIG. 7 is a hardware configuration diagram of a main part of the elevator system 1 of Embodiment 1. FIG.

Each function of the elevator system 1 can be realized by a processing circuit. The processing circuit includes at least one processor 100a and at least one memory 100b. The processing circuit may also include at least one dedicated hardware 200 together with the processor 100a and the memory 100b, or at least one dedicated hardware 200 instead of the processor 100a and the memory 100b.

When the processing circuit includes the processor 100a and the memory 100b, each function of the elevator system 1 can be realized by software, hardware, or a combination of software and firmware. At least one of the software and the firmware is written in a program. The program is stored in the memory 100b. The processor 100a reads out the program stored in the memory 100b and executes it, thereby realizing various functions of the elevator system 1 .

The processor 100a is also referred to as a CPU (Central Processing Unit, central processing unit), a processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP (digital signal processor, digital signal processor). The memory 100b is composed of, for example, a non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, and EEPROM.

In the case where the processing circuit is provided with dedicated hardware 200, the processing circuit is implemented by, for example, a single circuit, a composite circuit, a programmable processor, a parallel programmable processor, an ASIC, an FPGA, or a combination thereof.

The functions of the elevator system 1 can each be implemented by a processing circuit. Alternatively, the functions of the elevator system 1 may be integrated and implemented by a processing circuit. The functions of the elevator system 1 may also be partially implemented by the dedicated hardware 200 , and other parts may be implemented by software or firmware. In this way, the processing circuit implements each function of the elevator system 1 by the dedicated hardware 200, software, firmware or a combination thereof.

(Industrial Availability)

The elevator system of the present invention can be applied to a building having a plurality of floors. The monitoring system of the present invention can be applied to the failure prediction of elevators.

1: Elevator system

2: Elevator

3: Monitoring system

4: Lifting channel

5: Unit

6: Control Department

7: Cabin

8: main cable

9: winch

10: Balance Weight

11: Control panel

12: Monitor the server

13: Memory Device

14: Collection Department

15: Forecasting Department

16: Notification Department

Claims (2)

An elevator system comprising: a control unit that, in an elevator having a plurality of units each including a car, manages the distribution of calls to the plurality of units; The collecting unit collects the diagnostic data of the second unit among the plurality of units that does not transmit the fault information when the fault information is received from the first unit of the plurality of units; a predicting unit for predicting the failure of the second unit according to the diagnostic data when the diagnostic data of the second unit is collected by the collecting unit; and a notification unit for notifying the control unit when the prediction unit predicts the occurrence of the failure of the second unit; When the control unit receives the notification from the notification unit, the control unit assigns a call to the third unit whose occurrence of the failure is not predicted among the plurality of units that can be assigned, with priority over the second unit. The elevator system according to claim 1 is provided with a memory device, and the memory device stores: the failure information transmitted from any one of the plurality of units, and each unit of the plurality of units collected by the collection unit diagnostic data.

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