JP7375230B1 - elevator control device - Google Patents

Abstract

[Problem] To reduce inconvenience for users. An elevator control device according to an embodiment is an elevator control device applied to a double-deck elevator device having a first car and a second car connected in the up-and-down direction. During diagnostic operation, the system is equipped with an operating section that checks the door opening/closing of all floors for each car and temporarily operates the elevator on the floors excluding the floor where the door opening/closing abnormality occurred for each car. [Selection diagram] Figure 1

Description

Embodiments of the present invention relate to an elevator control device.

In double-deck elevator equipment, if an abnormal condition occurs such as shaking during an earthquake, after the abnormal condition is resolved, equipment in the hoistway, upper car and lower car (upper and lower cars), and all floors will be suspended. A diagnostic operation is performed to check whether there are any abnormalities in opening and closing the doors of the upper and lower cars on the floor. If there is no abnormality in the diagnostic operation, temporary operation (temporary restoration) of the elevator will be carried out.

Japanese Patent Application Publication No. 2015-054748 JP2018-203488A

During diagnostic operation, even if there is no abnormality in the equipment in the hoistway or in the running of the upper or lower cars, if there is an abnormality in the opening or closing of any of the doors of the upper or lower cars on any floor, the diagnostic operation will be canceled and temporary operation will be suspended. will not be performed. In that case, users cannot use the elevator.

The problem to be solved by the present invention is to provide an elevator control device that makes it possible to reduce inconvenience for users.

The elevator control device of the embodiment is an elevator control device applied to a double-deck elevator device having a first car and a second car connected in the up-and-down direction, and in a diagnostic operation after an abnormality occurs. It is equipped with an operation department that checks the door opening/closing of all floors for each car, and performs temporary elevator operation on the floors excluding the floor where the door opening/closing abnormality occurred for each car.

FIG. 1 is a diagram showing an example of the overall configuration of a double deck elevator apparatus according to an embodiment. FIG. 2 is a flowchart illustrating an example of the operation of the double-deck elevator device by the elevator control device according to the embodiment. FIG. 3 is a diagram schematically showing an example of information stored in the storage unit.

Hereinafter, embodiments will be described using the drawings.
(overall structure)
FIG. 1 is a diagram showing an example of the overall configuration of a double deck elevator apparatus according to an embodiment.
As shown in FIG. 1, a double-deck elevator device (hereinafter also simply referred to as "elevator") 1 according to the present embodiment has an outer car 2 that moves up and down in a hoistway, and an outer car 2 that is connected in the up-and-down direction inside the outer car 2. an upper car 3 and a lower car 4 (sometimes referred to as upper and lower cars), a car drive section 5 installed on the top of the hoistway to raise and lower the outer car 2; The elevator control device 7 is electrically connected to the upper and lower cars via tail cords that do not connect to each other, and controls the raising and lowering of the upper and lower cars by controlling the car drive unit 5. and an earthquake sensing section 8 that senses earthquakes that have occurred.

The car drive unit 5 is a rope-type drive mechanism, and includes a rope 5a whose one end is connected to the outer car 2, a counterweight 5b connected to the other end of the rope 5a, and a rope 5a. It includes a sheave 5c to be wrapped around and a drive source 5d for rotating the sheave 5c. When the drive source 5d rotates the sheave 5c, the outer car 2 moves up and down while being guided by a rail (not shown) in the hoistway. Note that the car drive unit 5 is not limited to the rope-type drive mechanism, and may include, for example, a linear motor-type or hydraulic drive mechanism.

(Configuration of elevator control device 7)
The elevator control device 7 includes a diagnostic operation section 7a (hereinafter referred to as "operation section 7a") and a storage section 7b. Earthquake sensing unit 8 includes a seismometer that measures earthquake shaking.

When the earthquake sensing unit 8 detects shaking due to an earthquake, the operating unit 7a causes the upper and lower cars to land on the nearest floor, and after a certain period of time has elapsed since the seismometer has been in a non-detection state, performs a diagnostic operation. It has the functionality to do so.

During the diagnostic operation after an earthquake occurs, the operation unit 7a determines (1) the installation position of equipment in the hoistway, (2) the normal running (rated running) of the upper and lower cars, and (3) the operation of the upper and lower cars on all floors. Diagnose whether there is any abnormality in opening/closing the door. In particular, in the diagnosis (3) above, door opening/closing is checked on all floors for each car (that is, for each upper car 3 and lower car 4), and at least for each car, door opening/closing abnormalities are detected. Generate information indicating the floor on which it was located.

Furthermore, on the condition that there is no abnormality detected other than door opening/closing abnormality, the operating unit 7a uses information indicating the floor where the door opening/closing abnormality occurred for each car, and determines the floor where the door opening/closing abnormality occurred for each car. It has a function to perform temporary operation (temporary restoration) of elevators on the floors that have been removed (that is, only on floors where doors can be opened and closed).

If there is an abnormality in the opening/closing of either the upper or lower car door on any floor during the diagnosis in (3) above, in a typical double-deck elevator system, the diagnostic operation will be canceled and temporary operation will not be performed. In the present embodiment, instead, the elevator is temporarily operated on floors excluding the floor where the door opening/closing abnormality occurred for each car.

Information indicating the floor where the door opening/closing abnormality occurred is managed on the storage unit 7b. That is, the operation unit 7a stores information indicating the floor where the door opening/closing abnormality occurred for each car in the storage unit 7b, and then uses the information stored in the storage unit 7b to determine the door opening/closing abnormality for each car. Temporary operation of elevators will be carried out on floors other than the floors where the elevators were located.

Information indicating the floor where the door opening/closing abnormality occurred is stored on the storage unit 7b as information indicating a floor where door opening is prohibited (floor where door opening is prohibited). That is, the operation unit 7a stores in the storage unit 7b the floor where the door opening/closing abnormality occurs for each car as a floor where door opening is prohibited, and in the above-mentioned temporary operation, the operation unit 7a stores the floor where the door opening/closing abnormality occurs for each car. Using the information indicating the floors where door opening is prohibited, control is performed for each car to prohibit door opening on floors where door opening is prohibited, while allowing door opening on floors that are not prohibited from opening, without prohibiting door opening.

Furthermore, in addition to the information indicating the floors where door opening is prohibited for each car, the storage unit 7b also contains information indicating the floors where door opening is permitted (floors where door opening is permitted without being prohibited) for each car. You may memorize it. This makes it easier to immediately determine whether opening the door of each car should be prohibited or allowed during temporary operation.

In the above provisional operation, if the floor on which the car call occurs corresponds to the floor where the door is prohibited for the upper car 3 to open, but does not correspond to the floor where the door opening is prohibited for the lower car 4, the operation unit 7a causes the lower car 4 to receive the car call. Control to respond. Further, if the floor where the car call is made corresponds to the floor where the door is prohibited for the lower car 4 to open, but does not correspond to the floor where the door is prohibited from being opened for the upper car 3, the upper car 3 is controlled to respond to the car call.

By performing the above-described control, the conditions under which the upper and lower cars become unusable are reduced, and since the upper and lower cars supplement mutually usable floors, it is possible to reduce the number of unusable floors.

The driving unit 7a also operates in a specific driving mode in which the response to a car call is divided between the upper car 3 and the lower car 4 for each floor (for example, the upper car 3 responds to a car call from an even-numbered floor). However, the lower car 4 has a function of implementing an operation mode in which the lower car 4 responds to car calls from odd-numbered floors.

In the above-mentioned specific operation mode, the operation section 7a determines that the floor on which the car call was made is the floor for which the upper car 3 is in charge, and corresponds to a floor where the door is prohibited for the upper car 3 to open, and that for the lower car 4 the door cannot be opened. If the floor does not correspond to a prohibited floor, the above assignment is temporarily invalidated, and the lower car 4 is controlled to respond to the car call. In addition, if the floor where the car call was made is the floor for which lower car 4 is in charge, and it corresponds to the floor where the door is prohibited to open for lower car 4, but does not correspond to the floor where door opening is prohibited for upper car 3, the above-mentioned assignment will be temporarily suspended. control so that upper car 3 responds to car calls.

By performing this kind of control, even if the door of that car cannot be opened on a floor where only one car can stop due to the operation mode, if the door of the other car can be opened, the car whose door can be opened will be opened. In response to this, the door can be opened on that floor.

Furthermore, after implementing the temporary operation, the operation unit 7a performs the door opening/closing confirmation again on the floor where the door opening/closing abnormality occurred for each car (i.e., the floor where door opening is prohibited), and performs the function of performing the above temporary operation. You may be prepared. If this is done, the number of floors where door opening/closing abnormalities may occur may be reduced compared to before the provisional operation, which may further improve convenience for users.

(motion)
Next, the operation of the double deck elevator system according to this embodiment will be explained. FIG. 2 is a flowchart showing an example of the operation of the double-deck elevator system by the elevator control device 7.

First, when the earthquake sensing unit 8 detects shaking due to an earthquake that has affected the hoistway during normal operation (S11), the elevator control device 7 causes the upper and lower cars to land on the nearest floor and opens the non-directional door. (S12).

In this state, when a certain period of time has elapsed from the time when the shaking due to the earthquake stopped or the earthquake sensing unit 8 stopped sensing shaking of a predetermined magnitude (for example, the seismometer became in a non-detecting state) (S13 (Yes), the elevator control device 7 starts diagnostic operation of the elevator (S14). In the diagnostic operation, it is confirmed whether there is an abnormality in the installation position of the equipment in the hoistway, and whether there is an abnormality in the normal running of the upper and lower cars.

The elevator control device 7 determines whether an abnormality is detected by either checking whether there is an abnormality in the installation position of equipment in the hoistway or checking whether there is an abnormality in the normal running of the upper and lower cars (S15).

If an abnormality is detected in step S15 (Yes in S15), the elevator control device 7 stops the diagnostic operation (S16) and stops the elevator (S17). On the other hand, if no abnormality is detected in step S15 (No in S15), the elevator control device 7 checks door opening/closing on all floors for each of the upper and lower cars, and detects door opening/closing abnormalities for at least each car. Information indicating the floor on which the event occurred is generated, and the information is stored in the storage section 7b (S18).

Here, an example of information stored in the storage section 7b is shown in the table of FIG. 3.

FIG. 3 schematically shows an example in which both the information on the floor where door opening is prohibited and the information on the floor where door opening is allowed for each of the upper car 3 and the lower car 4 are stored in the storage unit 7b. × represents a floor where the door cannot be opened, and ○ represents a floor where the door may be opened. In the example of FIG. 3, for the upper car 3, the third floor is a floor where door opening is prohibited, and the other floors are floors where door opening is permitted. Regarding the lower car 4, the second floor is a floor where the door cannot be opened, and the other floors are floors where the door can be opened.

However, the example in FIG. 3 is one example, and the present invention is not limited to this example. For example, if the floors on which the doors of the upper car 3 and the lower car 4 are prohibited to be opened are known, the floors on which the doors are allowed to be opened can also be known, so the information on the floors on which the doors are allowed to be opened does not need to be stored. On the other hand, if the floors on which doors are allowed to be opened for each of upper car 3 and lower car 4 are known, the floors on which doors cannot be opened can be determined, so the information on floors on which doors are allowed to be opened is stored, and the information on floors where doors are prohibited from being opened is stored. Good too. For each of the upper car 3 and the lower car 4, only the information on the floor where door opening is prohibited may be simply stored in the storage section 7b, or simply the information on the floor where the door is allowed to be opened may be stored in the storage section 7b. It may also be in a memorized form.

Next, the elevator control device 7 determines, based on the information stored in the storage unit 7b, whether an abnormality in opening or closing of the door of the upper or lower car has been detected on which floor (S19).

If no abnormality is detected in step S19 (No in S19), the elevator control device 7 performs temporary operation (temporary restoration) of the elevator (S20). On the other hand, if any abnormality is detected in step S19 (Yes in S19), the elevator control device 7 uses the information stored in the storage unit 7b to identify the floor where the door opening/closing abnormality has been detected for each car. Temporary operation (temporary restoration) of the elevators is carried out for the floors except for (S21).

As detailed above, according to the embodiment, in the diagnostic operation, door opening/closing is checked on all floors for each car (that is, for each of the upper car 3 and lower car 4), and Using information indicating the floor where the door opening/closing abnormality occurred for each car, temporary elevator operation is performed for each car on floors other than the floor where the door opening/closing abnormality occurred. This reduces the conditions under which the upper and lower cars cannot be used, and since the upper and lower cars supplement the floors that can be mutually used, it becomes possible to reduce the number of floors that cannot be used.

In the above embodiment, an example is shown in which the elevator control device 7 operates in response to shaking caused by an earthquake, but the elevator control device 7 operates not only in response to shaking caused by an earthquake but also in response to shaking caused by strong winds, etc. It may be configured as follows. In that case, it is sufficient to provide not only the earthquake sensing section 8 but also a sensing section that senses shaking due to some cause such as strong winds. Further, the sensing section for sensing shaking may be installed in both or one of the upper and lower cars. Furthermore, the elevator control device 7 may be configured to operate in response to sensing of some kind of abnormality related to the elevator, not limited to shaking. In that case, a sensing section that senses the above-mentioned abnormality may be provided instead of a sensing section that senses shaking.

Although several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

DESCRIPTION OF SYMBOLS 1...Double deck elevator device, 2...Outer car, 3...Upper car (first car), 4...Lower car (second car), 5...Car drive section, 5a...Rope, 5b...Balance Weight, 5c... Sheave, 5d... Drive source, 7... Elevator control device, 7a... Diagnosis operation section (operation section), 7b... Storage section, 8... Earthquake sensing section.

Claims (6)

An elevator control device applied to a double-deck elevator device having a first car and a second car connected in a lifting direction, comprising:
During diagnostic operations after an abnormality occurs, the doors are checked for opening and closing on all floors for each car, and temporary operation of the elevator is performed for each car on floors excluding the floor where the door opening/closing abnormality occurred. An elevator control device comprising: The driving section is
Information indicating the floor where the door opening/closing abnormality occurred for each car is stored in a predetermined storage unit,
Using the information stored in the storage unit, temporarily operate the elevator on floors excluding the floor where the door opening/closing abnormality occurred for each car;
The elevator control device according to claim 1. The driving section is
For each car, the floor where there is an abnormality in opening/closing the door will be designated as a floor where door opening is prohibited.
Control is performed for each car to prohibit door opening on the floor where door opening is prohibited, while permitting door opening on floors other than the door opening prohibited floor, without prohibiting the door opening.
The elevator control device according to claim 1 or 2. The driving section is
If the floor on which the car call was made corresponds to the floor where the door is prohibited for the first car to open, but does not correspond to the floor where the door is prohibited from being opened for the second car, the second car receives the car call. control to respond to,
If the floor on which the car call was made corresponds to the floor where the door cannot be opened for the second car, but does not correspond to the floor where the door cannot be opened for the first car, the first car receives the car call. control to respond to,
The elevator control device according to claim 3. The driving section is
having a function of implementing a specific operation mode in which responses to car calls are divided between the first car and the second car for each floor;
The floor on which the car call was made is the floor that the first car is in charge of, and corresponds to the floor where doors cannot be opened for the first car, and corresponds to the floor where doors cannot be opened for the second car. If the above does not apply, temporarily disable the assignment and control the second car to respond to the car call,
The floor on which the car call was made is the floor that the second car is in charge of, and corresponds to the floor where the door cannot be opened for the second car, and corresponds to the floor where the door cannot be opened for the first car. If this does not apply, temporarily disable the division and control the first car to respond to the car call.
The elevator control device according to claim 3. The driving section is
After carrying out the provisional operation, the door opening/closing is confirmed again for each car on the floor where the door opening/closing abnormality occurred, and the provisional operation is performed.
The elevator control device according to claim 1.