CN110072792B

CN110072792B - Elevator control system

Info

Publication number: CN110072792B
Application number: CN201680091536.6A
Authority: CN
Inventors: 松枝丰; 中谷彰宏; 毛利一成; 桥口拓弥
Original assignee: Mitsubishi Electric Building Techno Service Co Ltd
Current assignee: Mitsubishi Electric Building Solutions Corp
Priority date: 2016-12-26
Filing date: 2016-12-26
Publication date: 2020-08-18
Anticipated expiration: 2036-12-26
Also published as: JP6610809B2; CN110072792A; JPWO2018122909A1; KR102165769B1; KR20190089203A; WO2018122909A1

Abstract

The invention provides an elevator control system, which can continue the operation of an elevator with abnormality under the remote monitoring of people. An elevator control system comprises: an acquisition unit (15) that acquires data obtained from the elevator (1); a display control unit (20) that causes a display unit (19) to display information based on the data acquired by the acquisition unit (15); a remote command unit (22) that transmits a control command to the elevator (1) based on an operation performed by the operation unit (21); and a monitoring object determining unit (18) that determines, when an abnormality is reported from the elevator (1), specific data associated with the abnormality from among the data obtained from the elevator (11) as a monitoring object. The acquisition unit (15) does not acquire data corresponding to the specific data until an abnormality is reported from the elevator (1), and acquires the specific data after an abnormality is reported from the elevator (1).

Description

Elevator control system

Technical Field

The present invention relates to an elevator control system.

Background

Conventionally, there is known a system capable of continuing an operation of an elevator based on a preset condition even when an abnormality occurs in the elevator. As the system described above, for example, there is a system described in patent document 1 below.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2005-170663

Disclosure of Invention

Problems to be solved by the invention

According to the system described above, it is possible to suppress a decrease in convenience until the maintenance worker restores the elevator. However, when the operation of the elevator is continued without being determined by a person, there is a possibility that the operation of the elevator should be stopped.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator control system capable of continuing the operation of an elevator in which an abnormality has occurred under remote monitoring by a person.

Means for solving the problems

The elevator control system of the invention comprises: an acquisition unit that acquires data obtained from equipment and sensors of an elevator; a display control unit that causes the display unit to display information based on the data acquired by the acquisition unit; a remote command unit that transmits a control command based on an operation on the operation unit to the elevator; an operation control unit for operating the elevator according to the control command sent by the remote command unit; and a monitoring object determining unit which determines specific data associated with the abnormality as a monitoring object from among data obtained from devices and sensors of the elevator when the abnormality is reported from the elevator, wherein the acquiring unit does not acquire data corresponding to the specific data until the abnormality is reported from the elevator, and acquires the specific data after the abnormality is reported from the elevator.

Effects of the invention

In the elevator control system of the present invention, when an abnormality is reported from an elevator, the monitoring object determining unit determines specific data associated with the abnormality from among data obtained from devices and sensors of the elevator as the monitoring object. The acquisition unit does not acquire data corresponding to the specific data until an abnormality is reported from the elevator, and acquires the specific data after an abnormality is reported from the elevator. Therefore, according to the present invention, the operation of the elevator in which the abnormality has occurred can be continued under remote monitoring by a person.

Drawings

Fig. 1 is a schematic diagram showing an example of an elevator structure.

Fig. 2 is a functional block diagram of an elevator control system according to embodiment 1.

Fig. 3 is a flowchart showing an operation example of the elevator control system according to embodiment 1.

Fig. 4 is a hardware configuration diagram of the monitoring center.

Detailed Description

The present invention is explained in detail with reference to the accompanying drawings. The same or corresponding parts are denoted by the same reference numerals in the respective drawings. Duplicate descriptions are appropriately simplified or omitted.

Embodiment mode 1

Fig. 1 is a schematic diagram showing an example of an elevator structure.

As shown in fig. 1, an elevator 1 includes a hoistway 2, a hoisting machine 3, ropes 4, a car 5, a counterweight 6, and a control panel 7. The hoistway 2 is formed to penetrate each floor of a building not shown, for example. The hoisting machine 3 is installed in, for example, a machine room not shown. The ropes 4 are wound around the traction machine 3. The car 5 and the counterweight 6 are suspended in the hoistway 2 by the rope 4. The car 5 and the counterweight 6 are driven by the hoisting machine 3 to ascend and descend. The hoisting machine 3 is controlled by a control panel 7.

The control panel 7 is electrically connected to the hoisting machine 3 and the maintenance device 8. The maintenance device 8 has a function of communicating with the monitoring center 9. That is, the control panel 7 can communicate with the monitoring center 9 via the maintenance device 8.

The control panel 7 and the maintenance device 8 are provided in, for example, a building in which the elevator 1 is installed. The monitoring center 9 is provided in, for example, a building different from the building in which the elevator 1 is installed. The monitoring center 9 is, for example, a server installed in a management company of the elevator 1.

Fig. 2 is a functional block diagram of an elevator control system according to embodiment 1. In fig. 2, the illustration of the maintenance device 8 is omitted.

As shown in fig. 2, the control panel 7 is electrically connected to various devices 10 and various sensors 11 provided in the elevator 1. The equipment 10 includes, for example, the hoisting machine 3, a door opening/closing device, a cooling fan for controlling the disk 7, and the like. The sensors 11 include, for example, a temperature sensor, an acceleration sensor, a weighing device, a door switch, and an end switch in a hoistway.

As shown in fig. 2, the control panel 7 includes an operation control unit 12, an abnormality detection unit 13, and a notification unit 14. The monitoring center 9 includes an acquisition unit 15, a storage unit 16, an abnormality specification unit 17, a monitoring object determination unit 18, a display unit 19, a display control unit 20, an operation unit 21, and a remote instruction unit 22.

The operation control unit 12 controls the operation of the elevator 1. The operation control unit 12 controls the movement of the car 5 by controlling the driving of the hoisting machine 3, for example. The operation control unit 12 controls opening and closing of the doors of the elevator 1 by, for example, a door opening and closing device not shown.

The abnormality detection unit 13 detects an abnormality occurring in the equipment of the elevator 1 based on data obtained from the equipment 10 and the sensor 11. The abnormality detection unit 13 outputs, for example, an abnormality code corresponding to the detected abnormality. The abnormality code is, for example, preset information for specifying the type and the occurrence portion of an abnormality.

When the abnormality is detected by the abnormality detection unit 13, the operation control unit 12 stops the elevator 1, for example.

The reporting unit 14 reports information indicating an abnormality of the elevator 1 to the monitoring center 9 via the maintenance device 8. For example, when the abnormality detection unit 13 detects an abnormality, the reporting unit 14 reports an abnormality code corresponding to the abnormality to the monitoring center 9.

The acquisition unit 15 acquires data obtained from the equipment 10 and the sensor 11 of the elevator 1 via the maintenance device 8. The acquisition unit 15 acquires only the minimum necessary data among the data obtained from the device 10 and the sensor 11, for example, in a normal state.

The storage unit 16 stores, for example, data acquired by the acquisition unit 15. The storage unit 16 stores information indicating the devices 10, the sensors 11, and the like associated with the abnormality code of the elevator 1 in advance, for example.

The abnormality determination unit 17 determines the device 10 in which the abnormality has occurred and the influence range of the abnormality, for example, based on the information reported by the reporting unit 14 and the contents of the storage unit 16. The influence range of an abnormality refers to, for example, another device 10 that is affected in operation by an abnormality occurring in a certain elevator 10. The influence range of an abnormality is, for example, the sensor 11 whose detection value may change due to an abnormality occurring in a certain elevator 10.

When the reporting unit 14 reports an abnormality, the monitoring target determination unit 18 determines specific data associated with the abnormality from among the data obtained from the devices 10 and the sensors 11 of the elevator 1 as the monitoring target. The specific data associated with the abnormality refers to, for example, the temperature of the motor, the current value of the motor, the torque of the motor, the door opening rate, the time required for opening and closing the door, the temperature of the control panel 7, the current value of the control panel 7, and the like.

The monitoring object determining unit 18 may determine, for example, the temperature, the current value, the torque, and the like of the motor of the hoisting machine 3 as the monitoring object when an abnormality related to the movement of the car 5 is reported. The monitoring object determining unit 18 may determine, for example, the temperature, current value, torque, and the like of the door motor of the door opening/closing device as the monitoring object when an abnormality associated with opening/closing of the door is reported. The monitoring object determining unit 18 may determine, for example, a door opening rate, a time required for opening and closing a door, and the like as the monitoring object when an abnormality associated with opening and closing of the door is reported. For example, when an abnormality related to the operation of the control panel 7 is reported, the monitoring object determining unit 18 may determine the temperature, the current value, and the like of the control panel 7 as the monitoring object.

The acquisition unit 15 does not acquire data corresponding to the specific data until the reporting unit 14 reports the information indicating the abnormality. The acquisition unit 15 acquires specific data as time passes after the reporting unit 14 reports the information indicating the abnormality.

The display unit 19 is, for example, a liquid crystal display or a touch panel. The display unit 19 may be another device connected to the monitoring center 9, for example. The display unit 19 can display not only text information but also visual information using graphics and colors, for example.

The display control unit 20 controls the operation of the display unit 19. The display control unit 20 causes the display unit 19 to display information based on the data acquired by the acquisition unit 15, for example. The display control unit 20 causes the display unit 19 to display visual information such as a graph showing temporal changes in specific data, for example, in real time.

The operation unit 21 is, for example, a button, a keyboard, a touch panel, various pointing devices, and the like. The operation unit 21 may be another device connected to the monitoring center 9, for example.

The operation unit 21 is operated by, for example, a monitor who remotely monitors the state of the elevator 1. The remote command unit 22 transmits a control command based on the operation of the operation unit 21 to the control panel 7 of the elevator 1. The operation control unit 12 operates the elevator 1 in accordance with a control command transmitted from the remote command unit 22. The control instructions include, for example, instructions for controlling the various devices 10. The control command includes, for example, a command for restarting the elevator 1 and a command for stopping the elevator 1.

The acquisition unit 15 starts acquiring specific data after the report unit 14 reports an abnormality and the remote command unit 22 further transmits a control command for restarting the elevator 1.

When an abnormality is reported from the elevator 1 (step S101), the control panel 7 stops the elevator 1, for example (step S102). The monitoring center 9 identifies the device 10 in which the abnormality has occurred and the influence range of the abnormality (step S103). The monitoring center 9 determines specific data to be monitored (step S104).

The monitor operates the operation unit 21 to restart the elevator 1 by remote operation (step S105). Then, the monitoring center 9 starts the collection of specific data (step S106). The monitor monitors the specific data displayed on the display unit 19 (step S107). The monitor performs the life extension control by the remote operation by operating the operation unit 21 in accordance with, for example, a change in specific data (step S108).

The life extension control is control for reducing the load on the elevator 1 so that an abnormality is not detected by the abnormality detection unit 13, for example. The life extension control is, for example, to control the motor of the hoisting machine 3 so that the traveling speed of the car 5 is lower than normal. The life extension control refers to, for example, controlling the door motor so that the time required for opening and closing the door is longer than usual. The life extension control is, for example, to constantly operate the cooling fan so as to lower the temperature of the control panel 7. The lifetime extension control means, for example, increasing the rotational speed of the cooling fan so that the temperature of the control disk 7 is lowered.

The monitoring person determines whether or not the continuous operation of the elevator 1 is not possible based on the specific data displayed on the display unit 19 (step S109). When the elevator 1 can continue to operate, steps S106 to S108 are repeated. When the elevator 1 cannot continue to operate, the monitoring person operates the operation unit 21 to stop the elevator 1 by remote operation (step S110).

In embodiment 1, when an abnormality is reported from the elevator 1, the monitoring target determination unit 18 determines specific data associated with the abnormality from among the data obtained from the devices 10 and the sensors 11 of the elevator 1 as the monitoring target. The acquiring unit 15 does not acquire data corresponding to the specific data until the abnormality is reported from the elevator 1, and acquires the specific data with the passage of time after the abnormality is reported from the elevator 1. Therefore, according to embodiment 1, the operation of the elevator in which the abnormality has occurred can be continued under remote monitoring by a person. Further, since the specific data is acquired only when an abnormality occurs, it is possible to prevent an increase in communication load and calculation load of the control panel 7 and the monitoring center 9 during normal operation.

In embodiment 1, the acquisition unit 15 starts the acquisition of the specific data after, for example, an abnormality is reported from the elevator 1 and a control command for restarting the elevator 1 is transmitted from the remote command unit 22. Therefore, according to embodiment 1, the life extension control can be performed in a state where the degree of abnormality is temporarily reduced by the restart of the elevator.

In embodiment 1, the display control unit 20 causes the display unit 19 to display visual information showing temporal changes in specific data, for example, in real time. Therefore, according to embodiment 1, the monitoring person can intuitively determine whether or not the elevator cannot be continuously operated.

In embodiment 1, the display control unit 20 displays visual information showing a threshold value of specific data in a superimposed manner on visual information showing a change over time of the specific data, for example. That is, the display control unit 20 may display a straight line showing the temperature threshold value on a line graph showing a change in the temperature of the motor, for example, in an overlapping manner. The threshold value of the specific data is a value for determining whether or not the operation of the elevator 1 can be continued, for example, from the viewpoint of safety. In this case, the monitoring person can accurately determine whether or not the elevator cannot be continuously operated.

In embodiment 1, for example, when an abnormality associated with movement of the car 5 of the elevator 1 is reported, the monitoring object determining unit 18 determines at least one of the temperature, the current value, and the torque of the motor of the hoisting machine 3 of the elevator 1 as the monitoring object. In this case, the operation of the elevator in which the abnormality has occurred can be continued by performing the service life extension control on the hoisting machine.

In embodiment 1, for example, when an abnormality related to the opening/closing of the door of the elevator 1 is reported, the monitoring object determining unit 18 determines at least one of the temperature, the current value, and the torque of the door motor of the elevator 1 as the monitoring object. For example, when an abnormality related to the opening/closing of the door of the elevator 1 is reported, the monitored target determination unit 18 determines at least one of the door opening rate and the time required for the opening/closing of the door of the elevator 1 as the monitored target. In these cases, the operation of the elevator in which an abnormality has occurred can be continued by performing the life extension control of the door opening/closing device.

In embodiment 1, for example, when an abnormality associated with the operation of the control panel 7 of the elevator 1 is reported, the monitoring object determining unit 18 determines at least one of the temperature and the current value of the control panel 7 of the elevator 1 as the monitoring object. In this case, the operation of the elevator in which the abnormality has occurred can be continued by controlling the cooling fan.

Fig. 4 is a hardware configuration diagram of the monitoring center.

The functions of the acquisition unit 15, the storage unit 16, the abnormality specification unit 17, the monitoring object determination unit 18, the display unit 19, the display control unit 20, the operation unit 21, and the remote instruction unit 22 in the monitoring center 9 are realized by a processing circuit. The processing circuitry may be dedicated hardware 50. The processing circuit may also have a processor 51 and a memory 52. The processing circuit may be a part of dedicated hardware 50, and further include a processor 51 and a memory 52. Fig. 4 shows an example in which a part of the processing circuit is formed as dedicated hardware 50, and has a processor 51 and a memory 52.

Where at least a portion of the processing circuitry has at least one dedicated hardware 50, the processing circuitry may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

When the processing circuit includes at least one processor 51 and at least one memory 52, the functions of the acquisition unit 15, the storage unit 16, the abnormality determination unit 17, the monitoring object determination unit 18, the display unit 19, the display control unit 20, the operation unit 21, and the remote instruction unit 22 are realized by software, firmware, or a combination of software and firmware. The software and firmware are described as programs and stored in the memory 52. The processor 51 realizes the functions of the respective sections by reading out and executing the program stored in the memory 52. The processor 51 is also called a CPU (Central Processing Unit), a Central Processing Unit, a Processing Unit, an arithmetic Unit, a microprocessor, a microcomputer, or a DSP. Examples of the Memory 52 include nonvolatile or volatile semiconductor memories such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash Memory, an EPROM (erasable Programmable Read Only Memory), an EEPROM (electrically erasable Programmable Read Only Memory), and the like, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD (Digital versatile disk).

In this way, the processing circuitry can implement the functions of the monitoring center 9 by hardware, software, firmware, or a combination thereof. The functions of the control panel 7 may be realized by a processing circuit similar to the processing circuit shown in fig. 4.

Industrial applicability

As described above, the present invention can be used for an elevator that can be remotely operated.

Description of the reference symbols

1, an elevator; 2, a shaft; 3, a traction machine; 4, a rope; 5 a car; 6, the counterweight is carried out; 7, controlling the disc; 8, maintaining the device; 9 a monitoring center; 10, equipment; 11 a sensor; 12 an operation control unit; 13 an abnormality detection unit; 14 a report section; 15 an acquisition unit; 16 a storage section; 17 an abnormality determination section; 18 a monitoring object determining unit; 19 a display unit; 20 a display control unit; 21 an operation section; 22 a remote command section; 50 dedicated hardware; 51 a processor; 52 memory.

Claims

1. An elevator control system, wherein the elevator control system has:

an acquisition unit that acquires data obtained from equipment and sensors of an elevator;

a display control unit that causes a display unit to display information based on the data acquired by the acquisition unit;

a remote command unit that transmits a control command based on an operation on the operation unit to the elevator;

an operation control unit that operates the elevator in accordance with the control command transmitted from the remote command unit; and

a monitoring object determining part which determines specific data related to the abnormity in the data obtained from the devices and the sensors of the elevator as the monitoring object when the abnormity is reported by the elevator,

the acquisition unit does not acquire data corresponding to the specific data until an abnormality is reported by an elevator, and starts acquisition of the specific data after the abnormality is reported by the elevator and the remote command unit transmits a control command for restarting the elevator.

2. The elevator control system according to claim 1,

the display control unit causes the display unit to display, in real time, visual information showing a change with time of the specific data.

3. The elevator control system of claim 2 wherein,

the display control unit displays visual information showing a threshold value of the specific data in a superimposed manner on visual information showing a change with time of the specific data.

4. The elevator control system according to any one of claims 1 to 3 wherein,

the monitoring object determining unit determines at least one of a temperature, a current value, and a torque of a motor of a hoisting machine of the elevator as a monitoring object when an abnormality associated with movement of a car of the elevator is reported.

5. The elevator control system according to any one of claims 1 to 3 wherein,

the monitoring object determining unit determines at least one of a temperature, a current value, and a torque of a door motor of the elevator as a monitoring object when an abnormality associated with opening and closing of the door of the elevator is reported.

6. The elevator control system according to any one of claims 1 to 3 wherein,

the monitoring object determining unit determines at least one of a door opening rate and a time required for opening and closing a door of an elevator as a monitoring object when an abnormality associated with the opening and closing of the door is reported.

7. The elevator control system according to any one of claims 1 to 3 wherein,

the monitoring object determining unit determines at least one of a temperature and a current value of a control panel of the elevator as a monitoring object when an abnormality associated with an operation of the control panel of the elevator is reported.