CN114644270B

CN114644270B - Elevator system

Info

Publication number: CN114644270B
Application number: CN202110429234.8A
Authority: CN
Inventors: 北岛健太
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2020-12-17
Filing date: 2021-04-21
Publication date: 2023-09-22
Anticipated expiration: 2041-04-21
Also published as: JP2022096405A; CN114644270A; JP7004055B1

Abstract

An elevator system. Provided is an elevator system capable of reducing the possibility of occurrence of the same improper operation in an elevator device other than an elevator device in which a specific improper operation has occurred. The elevator system is provided with a car (4A), a car (4B), a running control unit (32A), a storage unit (31A), a detection unit (35A), a determination unit (37A), a determination unit (23), and a prohibition unit (22). When a call registration mode for the car (4B) matches the call registration mode determined by the determination unit (23) when a new call is assigned to the car (4B), the prohibition unit (22) prohibits assignment of the new call to the car (4B).

Description

Elevator system

Technical Field

The present invention relates to an elevator system.

Background

Patent document 1 describes an elevator system. The elevator system described in patent document 1 includes an operation recording device. A history of information related to the operation of the car is recorded in the operation recording device.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2009-227401

Disclosure of Invention

In the elevator system described in patent document 1, when an operator inputs a time period in which a certain event occurs, the cause of the event is analyzed from a history recorded in an operation recording device. The analysis result is then transmitted to the monitoring center of the elevator. In the elevator apparatus in which this event has occurred, the speed of the car is reduced until the spot inspection is completed, and the threshold value for detecting full is reduced.

A specific event may occur not only in the elevator apparatus in which the event has occurred but also in other elevator apparatuses. However, in the elevator system described in patent document 1, no countermeasures against other elevator apparatuses are taken.

The present invention has been made to solve the above-described problems. The purpose of the present invention is to provide an elevator system capable of reducing the possibility of occurrence of a similar improper operation in an elevator device other than an elevator device in which a specific improper operation has occurred.

An elevator system of the present invention includes: a 1 st car and a 2 nd car; a 1 st operation control unit that controls the operation of the 1 st car according to the input information; a storage unit that stores operation information including input information for the 1 st operation control unit; a detection unit that detects a specific improper operation that occurs during the operation of the 1 st car; a 1 st determination unit that determines an information input mode for reproducing the improper operation based on the operation information stored in the storage unit when the improper operation is detected by the detection unit; a 2 nd determination unit that determines a call registration mode in which the improper action is reproduced, based on the information input mode determined by the 1 st determination unit; and a prohibition unit that prohibits assignment of a new call to the 2 nd car when the call registration mode to the 2 nd car coincides with the call registration mode determined by the 2 nd determination unit when the new call is assigned to the 2 nd car.

The elevator system of the present invention comprises: a 1 st car and a 2 nd car; a 1 st operation control unit that controls the operation of the 1 st car according to the input information; a storage unit that stores operation information including input information for the 1 st operation control unit; a detection unit that detects a specific improper operation that occurs during the operation of the 1 st car; a 1 st determination unit that determines an information input mode for reproducing the improper operation based on the operation information stored in the storage unit when the improper operation is detected by the detection unit; a 2 nd operation control unit that controls the operation of the 2 nd car according to the input information; a determination unit that determines whether or not the information input mode for the 2 nd operation control unit coincides with the information input mode determined by the 1 st determination unit; and an adjustment unit that adjusts, when the determination unit determines that the information input timings are coincident, such that the information input timing for the 2 nd operation control unit no longer coincides with the information input timing in the information input mode determined by the 1 st determination unit.

Effects of the invention

The elevator system of the present invention includes, for example, a 1 st car, a 2 nd car, a 1 st operation control means, a storage means, a detection means, a 1 st determination means, a 2 nd determination means, and a prohibition means. When the detection unit detects an improper operation, the 1 st determination unit determines an information input mode for reproducing the improper operation based on the operation information stored in the storage unit. The 2 nd determination unit determines a call registration mode in which the improper action is reproduced. The prohibiting unit prohibits the allocation of the new call to the 2 nd car when the call registration mode to the 2 nd car coincides with the call registration mode determined by the 2 nd determining unit when the new call is allocated to the 2 nd car. In the elevator system according to the present invention, the possibility of occurrence of the same improper operation can be reduced in the elevator apparatuses other than the elevator apparatus in which the specific improper operation has occurred.

Drawings

Fig. 1 is a diagram showing an example of an elevator system according to embodiment 1.

Fig. 2 is a diagram for explaining the function of the control device.

Fig. 3 is a flowchart showing an example of the operation of the group control device.

Fig. 4 is a flowchart showing an example of the operation of the control device.

Fig. 5 is a flowchart showing another example of the operation of the control device.

Fig. 6 is a flowchart showing another example of the operation of the group control device.

Fig. 7 is a flowchart showing another example of the operation of the control device.

Fig. 8 is a diagram showing an example of hardware resources of the group control device.

Fig. 9 is a diagram showing another example of hardware resources of the group control device.

Description of the reference numerals

1: an elevator system; 2: a group management device; 3: an elevator apparatus; 4: a car; 5: a main rope; 6: a traction machine; 7: a door; 8: a door motor; 9: a door switch; 10: an operation panel; 11: a photoelectric sensor; 12: a plate; 13: a speed limiter; 14: a speed limiting wheel; 15: an operation panel; 21: a distribution unit; 22: a prohibition portion; 23: a determination unit; 30: a control device; 31: a storage unit; 32: an operation control unit; 33: an information input unit; 34: an information recording unit; 35: a detection unit; 36: an extraction unit; 37: a determination unit; 38: a determination unit; 39: an adjusting part; 40: a processing circuit; 41: a processor; 42: a memory; 43: dedicated hardware.

Detailed Description

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Duplicate descriptions are appropriately simplified or omitted. In the drawings, like reference numerals designate like or corresponding parts throughout the several views.

Embodiment 1.

Fig. 1 is a diagram showing an example of an elevator system 1 according to embodiment 1. The elevator system 1 includes a group control device 2. The group control device 2 controls a plurality of elevator devices 3 as one group. In the present embodiment, as a simplest example, an example in which the elevator system 1 includes two elevator apparatuses 3 is shown. That is, the group control device 2 manages the machine a and the machine B. The group control device 2 may control three or more elevator devices 3.

Each elevator apparatus 3 includes a car 4 and a control device 30. The car 4 moves up and down in the hoistway. The car 4 is suspended in the hoistway by the main ropes 5. The main rope 5 is wound around the traction machine 6. The traction machine 6 drives the car 4. The control device 30 controls the hoisting machine 6. That is, the movement of the car 4 is controlled by the control device 30.

The car 4 includes a door 7, a door motor 8, a door switch 9, and an operation panel 10. The door motor 8 drives the door 7. The control device 30 controls the door motor 8. That is, the opening and closing operation of the door 7 is controlled by the control device 30. The door switch 9 detects that the door 7 is located at a specific fully closed position. If the door 7 is in the fully closed position, the fully closed information is sent from the door switch 9 to the control device 30. The full-close information is an example of information showing the position of the door 7. The car 4 may be provided with a door switch for detecting that the door 7 is located at a specific fully open position.

The operation panel 10 includes a destination button, a door opening button, and a door closing button. The operation panel 10 may be provided with other buttons. The operation panel 10 may be provided with a switch. When the destination button provided in the operation panel 10 is pressed, destination button information corresponding to the pressed destination button is transmitted from the operation panel 10 to the control device 30. The destination button information from the operation panel 10 is a registration request of a car call. When the door opening button is pressed, door opening button information is transmitted from the operation panel 10 to the control device 30. When the door closing button is pressed, door closing button information is transmitted from the operation panel 10 to the control device 30. When the switch provided in the operation panel 10 is operated, switch information corresponding to the operated switch is transmitted from the operation panel 10 to the control device 30.

Each elevator apparatus 3 includes a landing device for detecting that the car 4 is disposed in accordance with the height of the landing. The layer stopping device includes a photosensor 11 and a plate 12. The photoelectric sensor 11 is provided in the car 4. The plate 12 is disposed in the hoistway. The plate 12 is disposed corresponding to the height of each landing at which the car 4 stops. When the photosensor 11 detects the board 12, board information corresponding to the detected board 12 is transmitted from the photosensor 11 to the control device 30. The plate information is an example of information indicating the position of the car 4.

Each elevator apparatus 3 includes a speed limiter 13. The governor 13 forcibly stops the car 4 when the speed of the car 4 exceeds the reference speed. The reference speed is preset. The speed limiter 13 includes a speed limiting wheel 14 and an encoder (not shown). The speed governor wheel 14 rotates in synchronization with the movement of the car 4. The encoder detects the rotation angle of the speed limit wheel 14. The encoder transmits the detected information to the control device 30. The detection information from the encoder is an example of information indicating the traveling of the car 4. The hoisting machine 6 may have an encoder having the same function as the encoder.

The functions of the control device 30 will be described later.

The elevator system 1 includes an operation panel 15. The operation panel 15 is provided at each landing where the car 4 stops. As an example, the operation panel 15 includes an up button and a down button. When a button provided on the operation panel 15 is pressed, the operation panel 15 transmits the hall button information corresponding to the pressed button to the group control device 2. The landing button information from the operation panel 15 is a registration request of a landing call.

The group control device 2 includes an allocation unit 21, a prohibition unit 22, and a determination unit 23. Fig. 2 is a diagram for explaining the function of control device 30. The control device 30 of each elevator apparatus 3 includes a storage unit 31, an operation control unit 32, an information input unit 33, an information recording unit 34, a detection unit 35, an extraction unit 36, a determination unit 37, a determination unit 38, and an adjustment unit 39.

Hereinafter, the operation of the elevator system 1 will be described with reference to fig. 3 to 7. In the following description, when the elements of the elevator apparatus 3 need to be distinguished by a numbering machine, a or B is denoted by a reference numeral indicating each element. For example, the machine a has the car 4A and the control device 30A. The machine B has a car 4B and a control device 30B.

Fig. 3 is a flowchart showing an example of the operation of the group control device 2. In the group control device 2, it is determined whether or not the hall button information is received from the operation panel 15 (S101). For example, when the user presses the up button of the operation panel 15 to register a call at the landing of the 1 floor of the building, the group control device 2 receives the landing button information indicating that the up button is pressed at the 1 floor (yes at S101).

The assignment unit 21 determines the car 4 to which the hall call is to be assigned in response to the hall button information from the operation panel 15, that is, the car 4 (S102). For example, the allocation unit 21 determines to allocate a car based on the landing call and the registration status of the car call in each elevator apparatus 3. The assignment unit 21 also determines assignment of cars based on the prohibition contents of the prohibition unit 22. The function of the prohibiting section 22 will be described later.

After the allocation unit 21 determines the car 4 to which the hall call is to be allocated, the group control device 2 transmits allocation information to the control device 30 that controls the car 4 (S103). For example, when a new hall call is assigned to the car 4A in S102, assignment information is transmitted from the group control device 2 to the control device 30A.

Fig. 4 is a flowchart showing an example of the operation of control device 30. The operation control unit 32 controls the operation of the elevator apparatus 3 based on the car 4 (S201). For example, the operation control unit 32A controls the operation of the car 4A. The operation control unit 32B controls the operation of the car 4B.

As described above, the control device 30 receives various information from the group control device 2, the car 4, and other equipment. The information input unit 33 inputs the received information to the operation control unit 32. The operation control unit 32 controls operations including various operations based on the input information from the information input unit 33.

For example, the control device 30 registers a hall call based on hall button information from the operation panel 15. The control device 30 registers a car call based on destination button information from the operation panel 10. In S201, the operation control unit 32 moves the car 4 so that the car 4 sequentially responds to the registered calls. When the car 4 stops at a landing, the operation control unit 32 opens and closes the door 7 so that a user can take the car 4.

Further, each control device 30 performs processing for recording information on the operation of the elevator apparatus 3 in time series. In the following, this information is also referred to as "operation information". For example, the operation information is input from the information input section 33 to the information recording section 34 (S202). The information recording unit 34 sequentially records the operation information input from the information input unit 33 in the storage unit 31 (S203). Thereby, the operation information is stored in the storage unit 31. For example, information on the operation of the machine a is stored in the storage unit 31A. The storage unit 31B stores information on the operation of the B-machine.

The operation information includes input information input from the information input unit 33 to the operation control unit 32. For example, the input information includes assignment information, door opening button information, door closing button information, destination button information, opening and closing information, information indicating the position of the door 7, information indicating the position of the car 4, and information indicating the travel of the car 4. The input information may not include a part of the above information. The input information may also contain other information. The operation information may include a history of the operations performed in the operation of S201.

Fig. 5 is a flowchart showing another example of the operation of control device 30. The detection unit 35 detects a specific improper operation occurring during the operation of S201. The improper action is preset. For example, from the viewpoint of safety, an abnormal operation such that the operation cannot be continued is set as an improper operation. As another example, the operation that does not prevent the continuous operation but causes the user to be uncomfortable may be set as an inappropriate operation.

For example, the detection unit 35 detects that the user is trapped as an improper operation. The detection unit 35 may detect unexpected door opening and closing as improper actions. The detection unit 35 may detect unexpected call registration and call cancellation as improper actions. The detection unit 35 may detect a significantly inefficient call distribution as an improper operation. The detection unit 35 may detect other operations as inappropriate operations.

In the control device 30, it is determined whether or not an improper operation is detected by the detection unit 35 (S301). In the following, specific inappropriate operations are generated in the machine a, and specific examples will be described. An improper operation occurring in the machine a is detected by the detection unit 35A (yes in S301).

When it is determined as yes in S301, the extraction section 36 extracts the operation information for the specific period of time from the storage section 31 (S302). The time period includes the time at which the improper action occurred. As an example, the time period is set to a time from C seconds before to D seconds after the time point when the improper operation occurs. The values of C and D are preset.

The determination unit 37 determines an information input mode for reproducing the improper operation based on the operation information extracted by the extraction unit 36 (S303). That is, when the detection unit 35 detects an improper operation, the determination unit 37 determines S303 based on the operation information stored in the storage unit 31. For example, the determination unit 37 analyzes the operation information extracted by the extraction unit 36. The determination unit 37 may use machine learning for the analysis. The determination unit 37 creates an information input pattern defining the type and content of the input information and the input timing of the information based on the analysis result. In the example shown in the present embodiment, the "information input mode in which an improper operation is reproduced" may include "information input mode in which the likelihood of being determined to be an improper operation is high".

The information input mode determined by the determining unit 37 is transmitted from the control device 30 to the group control device 2 (S304). The information input pattern determined by the determining unit 37 is transmitted from the control device 30 of the elevator apparatus 3 in which the improper operation has occurred to the control devices 30 of the other elevator apparatuses 3 in which the improper operation has not occurred (S304). When the detection unit 35A detects an improper operation, the information input mode determined by the determination unit 37A is transmitted from the control device 30A to the control device 30B.

As shown in fig. 3, in the group control device 2, it is determined whether or not the information input mode determined by the determination unit 37 is received from the control device 30 (S104). When it is determined to be yes in S104, the determination unit 23 determines a call registration mode for reproducing the improper operation based on the information input mode determined by the determination unit 37 (S105). In the example shown in the present embodiment, the "call registration mode for reproducing improper operation" may be a call registration mode in which the possibility of reproducing improper operation is determined to be high.

For example, the determination unit 23 determines the call registration mode by analyzing the information input mode determined by the determination unit 37. The determination unit 23 may use machine learning for the analysis. As another example, the determination mode may be set in advance. In this case, the determination unit 23 determines whether or not the information input mode determined by the determination unit 37 includes a mode for determination. The determination unit 23 determines a determination mode included in the information input mode as a call registration mode for reproducing an improper operation. In addition, machine learning may be used for setting the determination mode.

The prohibiting unit 22 prohibits the case where the call registration mode in each elevator apparatus 3 is the same as the call registration mode determined by the determining unit 23. Fig. 6 is a flowchart showing another example of the operation of the group control device. Fig. 6 illustrates the processing contained in S102 of fig. 3. The processing shown in fig. 6 is performed for each car 4 as an assigned car candidate.

If the determination is yes in S101 in fig. 3, a new call needs to be assigned to any car 4. At this time, when assigning the new call to a certain car 4, the prohibiting unit 22 determines whether or not the call registration pattern for that car 4 matches the call registration pattern determined by the determining unit 23 (S401).

If the determination is yes in S401, the prohibiting unit 22 prohibits the allocation of the new call to the car 4 (S402). This eliminates the car 4 from the assigned car candidates. On the other hand, if the determination is no in S401, the prohibition unit 22 does not prohibit the allocation of the new call to the car 4 (S403). Thus, the car 4 is not excluded from the assigned car candidates. In S102, the assigning unit 21 determines an assigned car for the new call from among cars 4 that have never been excluded from the assigned car candidates.

Fig. 7 is a flowchart showing another example of the operation of control device 30. In the control device 30, it is determined whether or not an information input mode is received from another control device 30 (S501). For example, in the control device 30B, it is determined whether or not the information input mode determined by the determination unit 37A is received from the control device 30A. When the detection unit 35A detects an improper operation, the control device 30B receives the information input pattern determined by the determination unit 37A in S303 (yes in S501).

As described above, the operation control unit 32 controls the operation of the car 4 based on the input information from the information input unit 33. When it is determined to be "yes" in S501, the determination unit 38 determines whether or not the information input mode in which information is input from the information input unit 33 to the operation control unit 32 matches the information input mode received from the other control device 30 in S501 (S502).

When the determination is yes in S502, the adjustment unit 39 adjusts the information input timing to the operation control unit 32 (S503). For example, the adjustment unit 39B adjusts the input timing such that the information input timing for the operation control unit 32B no longer coincides with the information input timing in the information input mode determined by the determination unit 37A. Thus, the information input to the operation control unit 32B is performed at a timing offset from the information input timing in the information input mode determined by the determination unit 37A.

In the example shown in the present embodiment, for example, when an improper operation occurs in the machine a, it is possible to reduce the possibility that the same improper operation occurs in the machine B in which the improper operation does not occur.

An improper operation may occur when a specific operation is performed under a specific condition. In addition, improper operation may occur when a specific operation is performed at a specific timing. The improper operation occurring due to such a reason is not limited to occur only in machine a. When the machine a and the machine B are of the same model, both machines are likely to have the same improper operation. When the machine a and the machine B are installed in the same building, both machines are likely to have the same improper operation. When the machine a and the machine B belong to the same bank, both machines are likely to perform the same improper operation. Even when the machine a and the machine B belong to different banks, the same improper operation is likely to occur in the case where the equipment configuration of the machine a and the equipment configuration of the machine B are similar.

In the example shown in the present embodiment, the prohibiting unit 22 prohibits the allocation of a new call to the car 4B when the call registration mode for the car 4B matches the call registration mode determined by the determining unit 23A when the new call is allocated to the car 4B. Thus, improper operation detected in the machine a is prevented from occurring in the machine B.

In the example shown in the present embodiment, the adjustment unit 39B adjusts the information input timing for the operation control unit 32B so that the information input timing for the operation control unit 32B no longer coincides with the information input timing in the information input mode determined by the determination unit 37A. Thus, improper operation detected in the machine a is prevented from occurring in the machine B.

In the present embodiment, a preferred example in which the elevator system 1 includes both the prohibiting section 22 and the adjusting section 39 is described. Even if the elevator system 1 includes only one of the prohibiting section 22 and the adjusting section 39, a certain effect can be expected.

In the present embodiment, an example in which the car 4 has a destination button is described. The operation panel 15 of the landing may be provided with a destination button. In this case, the group control device 2 receives a hall destination call registration request from the operation panel 15 as hall button information.

In the present embodiment, the respective sections denoted by reference numerals 21 to 23 show functions of the group control device 2. Fig. 8 is a diagram showing an example of hardware resources of the group control device 2. The group control device 2 includes, as hardware resources, for example, a processing circuit 40 including a processor 41 and a memory 42. The group control device 2 realizes the functions of the respective units shown by reference numerals 21 to 23 by executing a program stored in the memory 42 by the processor 41.

The processor 41 is also called a CPU (Central Processing Unit: central processing unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP. As the memory 42, a semiconductor memory, a magnetic disk, a floppy disk, an optical disk, a CD (compact disc), a mini disk (mini disk), or a DVD (digital versatile disk) may also be used. The semiconductor memory that can be employed includes RAM (random access memory), ROM (read only memory), flash memory, EPROM (erasable programmable read only memory), EEPROM (electrically erasable programmable read only memory), and the like.

Fig. 9 is a diagram showing another example of the hardware resources of the group control device 2. In the example shown in fig. 9, the group control device 2 includes, for example, a processing circuit 40 including a processor 41, a memory 42, and dedicated hardware 43. Fig. 9 shows an example in which a part of the functions of the group control device 2 is realized by dedicated hardware 43. All the functions of the group control device 2 may be realized by the dedicated hardware 43. As the dedicated hardware 43, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (application specific integrated circuit), an FPGA (field programmable gate array), or a combination thereof may be employed.

The hardware resources of each control device 30 are the same as those of the example shown in fig. 8 or 9. For example, the control device 30 includes a processing circuit including a processor and a memory as hardware resources. The control device 30 executes a program stored in a memory by a processor to realize the functions of the respective units indicated by reference numerals 31 to 39. The control device 30 may include a processing circuit including a processor, a memory, and dedicated hardware as hardware resources. Part or all of the functions of the control device 30 may be realized by dedicated hardware.

The group control device 2 may have a part of the functions of the control device 30. For example, the group control device 2 may include a determination unit 37. The control device 30 may have a part of the functions of the group control device 2. For example, the control device 30 may include the determination unit 23. The elevator system 1 may not include the group control device 2. In this case, the control device 30 may include the allocation unit 21, the prohibition unit 22, and the determination unit 23 as necessary.

Claims

1. An elevator system, wherein the elevator system comprises:

a 1 st car and a 2 nd car;

a 1 st operation control unit that controls the operation of the 1 st car according to input information;

a storage unit that stores operation information including input information for the 1 st operation control unit;

a detection unit that detects a specific improper operation occurring during the operation of the 1 st car;

a 1 st determination unit that determines an information input mode for reproducing an improper operation based on the operation information stored in the storage unit when the improper operation is detected by the detection unit;

a 2 nd determination unit that determines a call registration mode in which the improper action is reproduced, based on the information input mode determined by the 1 st determination unit; and

and prohibiting means for prohibiting allocation of a new call to the 2 nd car when a call registration mode for the 2 nd car coincides with the call registration mode determined by the 2 nd determining means when a new call is allocated to the 2 nd car.

2. The elevator system according to claim 1, wherein the elevator system further comprises:

a 2 nd operation control unit that controls the operation of the 2 nd car according to input information;

a determination unit that determines whether or not the information input mode for the 2 nd operation control unit coincides with the information input mode determined by the 1 st determination unit; and

and an adjustment unit that adjusts, when the determination unit determines that the information input timings are identical, such that the information input timings for the 2 nd operation control unit are no longer identical to the information input timings in the information input mode determined by the 1 st determination unit.

3. The elevator system according to claim 1 or 2, wherein,

the operation information stored in the storage means includes a history of operations performed during the operation of the 1 st car.

4. An elevator system, wherein the elevator system comprises:

a 1 st car and a 2 nd car;

5. The elevator system of claim 4, wherein,