WO2020246677A1

WO2020246677A1 - Double-deck elevator system

Info

Publication number: WO2020246677A1
Application number: PCT/KR2019/018371
Authority: WO
Inventors: 배병태
Original assignee: 현대엘리베이터주식회사
Priority date: 2019-06-05
Filing date: 2019-12-24
Publication date: 2020-12-10
Also published as: KR102160012B1

Abstract

The present invention relates to a double-deck elevator system. A double-deck elevator system, according to a first embodiment of the present invention, comprises: a first car having a first coupling member provided therewith; a second car disposed on an upper side of the first car in the same hoistway as the first car and having a second coupling member coupled to and separated from the first coupling member; and a control unit for controlling a coupling/separating operation and a driving operation of the first car and the second car, wherein the control unit controls the operation such that the first car and the second car are selectively driven in one driving mode from among a first driving mode in which the first car and the second car are driven together in a combined state, and a second driving mode in which the first car and the second car are independently driven in a separated state. According to the present invention, when the number of passengers is small, upper and lower cars are combined with each other and driven in a double-deck manner, thereby reducing the time for passengers to move to target floors and increasing the driving efficiency, and when the number of passengers is small, the upper and lower cars are separated from each other and driven independently, thereby reducing unnecessary energy consumption.

Description

Double deck elevator system

The present invention relates to a double-deck elevator system, and more particularly, to a double-deck elevator system in which two cars arranged up and down in one hoistway are combined and operated together or separated and operated independently as necessary.

With the advancement of building technology, high-rise buildings are required to install a number of elevators for smooth inter-floor movement, but increasing the number of elevators unrestrictedly increases construction and operation costs, and in terms of space utilization of the building. The problem of exists.

In order to solve this problem, in recent years, two cars are connected up and down in a high-rise building or a large-sized building, and a double-deck elevator operating in one hoistway has been installed and operated.

In double-deck elevators, passengers are categorized by target floor and boarded in different cars, so the stopping floor is reduced and the time for passengers to move to the target floor is shortened, and the number of passengers that can be accommodated at one time per hoistway increases, increasing operation efficiency. However, the double deck elevator has the disadvantage of being inefficient in terms of energy consumption in that two cars must be operated at the same time even during times when the number of passengers is small.

The present invention is to solve the problems of the prior art mentioned above, and an object of the present invention is to achieve a separate operation from the first operation mode in which two cars arranged up and down on the same hoistway are combined with each other and operated together. It is to provide a double-deck elevator system that enables a second operation mode to be selectively operated as needed.

Another object of the present invention is to provide a double-deck elevator system with improved safety when combining/separating a first car and a second car, and during operation for each operation mode.

Another object of the present invention is to provide a double deck elevator system in which the operation mode can be automatically switched according to the floating population in a building in which the elevator is installed.

The double-deck elevator system according to the first embodiment of the present invention is disposed above the first car on the same hoistway as the first car and the first car on which the first coupling member is provided, and is coupled/separated from the first coupling member. It includes a second car provided with a coupling member, and a control unit for controlling the coupling/separating operation and operation of the first car and the second car, and the control unit is operated together with the first car and the second car combined. Operation is controlled so that the first car and the second car are selectively operated in one of the first operation mode and the second operation mode independently operated while the first and second cars are separated.

In this case, the elevator system may further include a first driving unit and a second driving unit respectively independently connected to the first car and the second car to drive the first car and the second car up and down.

In addition, the first driving unit is a first hoisting machine disposed on one side of the upper side of the hoistway, the first suspension sheave fixed to the lower end of the first car, and the first hoisting machine and the first traction machine to move the first car according to the operation of It includes a first rope wound around the suspension sheave, and the second driving unit is a second traction machine disposed on the other side of the hoistway, a second suspension sheave fixed to the upper end of the second car, and the second traction machine. It may include a second rope wound around the second traction machine and the second suspension sheave so that the car is traction.

In addition, in the section where the first rope is connected from the first traction machine to the first suspension sheave, the first suspension sheaves are external to each end in the width direction of the first car so as not to interfere with the elevating paths of the first car and the second car. It can be mounted to protrude in the direction.

In addition, the second suspension sheave is mounted at both ends in the width direction of the second car, and the second suspension sheave is made so that it does not interfere with the first rope in the section where the second rope is connected from the second traction machine to the second suspension sheave. 1 It may be arranged to have a narrower spacing than the spacing between the suspension sheaves.

In addition, the second suspension sheave is mounted at both ends in the width direction of the second car, and the second suspension sheave does not interfere with the first rope in the section where the second rope is connected from the second traction machine to the second suspension sheave. May be arranged to have an arrangement direction crossing the arrangement direction of the first suspension sheave.

In addition, the control unit may mechanically or electrically synchronize the first traction machine and the second traction machine in the first operation mode to control the operation to rotate at the same rotational speed.

In addition, the control unit may control the operation so that the first traction machine and the second traction machine operate independently in the second operation mode.

In addition, the first coupling member and the second coupling member are formed to be coupled to each other as the first car and the second car move up and down close to the coupling reference distance state, the first car and the second car are the first coupling member and the second It can be coupled to each other by the coupling of the coupling member.

In addition, the control unit may control the operation of the first car and the second car so that a switching mode state in which the first car and the second car are combined/separated is performed in the process of switching the driving mode of the first car and the second car.

In addition, in the switching mode state, the controller may control the operation so that the first car and the second car move at a lower speed than the driving speed in the first and second driving modes in at least some sections.

In addition, the conversion mode is divided into a combined conversion mode in which the first car and the second car are combined, and a separate conversion mode in which the first car and the second car are separated, and the control unit is based on the combination of the first car and the second car in the combined conversion mode. Operation can be controlled to perform a first-stage movement in which the first car and the second car move closer to each other in a standby reference distance state greater than the distance, and a second-stage movement process in which the first car and the second car move closer to each other from the standby reference distance state have.

In addition, the control unit may control the operation so that the moving speed of the first car and the second car is lower than the driving speed in the first and second driving modes in the second step movement process.

In addition, in the separation switching mode, the controller may control the operation so that the first car and the second car move in a direction away from each other from the combined reference distance state to the standby reference distance state.

In addition, the control unit may control the operation so that the moving speed of the first car and the second car is lower than that of the first and second driving modes in the separate switching mode.

In addition, the first coupling member and the second coupling member may be coupled/separated by at least one of a mechanical coupling method, a hydraulic coupling method, and a coupling method using an electromagnet.

In addition, the elevator system is provided with a separate floating population detection sensor that detects the number of floating population inside the building or at the entrance, and the control unit receives the floating population information from the floating population detection sensor, and provides a control based on the approved floating population information. It can be operated by switching to the 1 operation mode or the second operation mode.

In addition, the elevator system is provided with a separate passenger detection sensor that detects the presence or absence of passengers in the first car and the second car, and the control unit receives the passenger information of the passenger detection sensor, and based on the authorized passenger information, If there are passengers in the second car, the switching of the driving mode can be suspended.

In addition, the elevator system is provided with a separate distance sensor for sensing the distance between the first car and the second car, the control unit receives distance information from the distance sensor, based on the distance information between the applied cars, the second In the driving mode, the distance between cars can be made to exceed a preset minimum distance.

In addition, in the first driving mode, the controller determines that the first coupling member and the second coupling member are separated when the distance information between cars applied from the distance detection sensor exceeds the set maximum distance, and the first and second coupling members are separated. You can make the car stop running.

In addition, the elevator system may be provided with a separate state detection sensor for detecting the coupling / separation state between the first coupling member and the second coupling member.

In addition, a buffer member may be provided on an upper surface of the first car or a lower surface of the second car to reduce an impact generated during a collision between the cars.

According to the present invention, in times when the number of passengers is small, the upper and lower cars are combined with each other and operated in a double-deck manner, so that the time for the passengers to move to the target floor is shortened and operation efficiency is increased. It operates independently and has the effect of reducing unnecessary energy consumption.

In addition, when switching the operation mode, the first car and the second car are moved at a low speed to be combined/separated only when there are no passengers in the first car and the second car, and the first and second cars are combined/separated. By continuously monitoring the condition and maintaining a minimum distance between each other when the first car and the second car operate independently, it is possible to provide an elevator system with improved safety.

In addition, by allowing the operation mode to be switched according to the floating population in the building, it is possible to provide an elevator system that can operate efficiently even with unexpected fluctuations in the floating population in the building.

1 is a block diagram schematically illustrating a double deck elevator system according to a first embodiment of the present invention.

2 is a view showing a state in which the double deck elevator system according to the first embodiment of the present invention operates.

3 is a view showing a state in which the first car and the second car are separated according to the first embodiment of the present invention.

4 is a view showing a state in which the first car and the second car are combined according to the first embodiment of the present invention.

5 is a flowchart illustrating a process of switching the operation mode of the double deck elevator system according to the first embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to elements of each drawing, it should be noted that the same elements have the same numerals as possible even if they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a block diagram schematically illustrating an elevator system according to a first embodiment of the present invention.

Referring to FIG. 1, a double deck elevator system (hereinafter referred to as an'elevator system') according to a first embodiment of the present invention is a first in which two cars arranged up and down in one hoistway are combined with each other and operated together The first car 100, the second car 200, in order to selectively operate the operation mode or a second operation mode in which the two cars arranged up and down in one hoistway are separated from each other and operated independently as necessary, A first driving unit 300, a second driving unit 400, a control unit 500, and a sensing unit 600 may be included.

The first car 100 may be disposed under the second car 200 on the same hoistway as the second car 200 to be coupled or separated from the second car 200, and the second car 200 1 It is disposed above the first car 100 in the same hoistway as the car 100 and may be combined or separated from the first car 100.

In addition, the first driving unit 300 is connected to the first car 100 to drive the first car up and down, and the second driving unit 400 is the second car 200 and the second car 200 to drive the second car 200 up and down. Can be connected. That is, the first driving unit 300 and the second driving unit 400 may be independently connected to the first car 100 and the second car 200, respectively.

The controller 500 controls the coupling or separation operation of the first car 100 and the second car 200, and controls the first driving unit 300 and the second driving unit 400 to control the first car 100 and It is provided to control the driving operation of the second car 200.

And the control unit 500 is the first driving mode in which the first car 100 and the second car 200 are operated together in a combined state, and in a state in which the first car 100 and the second car 200 are separated. Operation is controlled so that the first car 100 and the second car 200 are selectively operated as one of the independently operated second driving modes.

The detection unit 600 senses the number of floating populations in the building, which is the criterion for the control unit 500 to select the operation mode, and the safety in the process of combining or separating the first car and the second car and safety by operation mode In order to improve, it may be provided to detect a distance and a coupling state between the first car 100 and the second car 200 and provide the sensed information to the controller 500.

To this end, the detection unit 600 may include a floating population detection sensor, a passenger detection sensor, a distance detection sensor, and a state detection sensor.

The floating population detection sensor may be provided as a laser sensor or a radar sensor that is disposed at the entrance of the building or inside the building and detects an object within a certain range in order to detect the number of floating population in a building in which an elevator system is installed.

In addition, the controller 500 receives the floating population information from the floating population detection sensor, and switches to the first operation mode when the number of floating populations set based on the approved floating population information is greater, and the second operation when the number is less than the set floating population. You can have it switch to mode.

The passenger detection sensor includes a laser sensor, a radar sensor, and a laser sensor disposed inside the boarding space of the first car and the second car and detecting objects in the boarding space in order to detect the presence or absence of passengers in the boarding space of the first car and the second car. It may be provided as one of the thermal sensors.

In addition, the control unit 500 receives the passenger information of the passenger detection sensor, and based on the authorized passenger information, the first car 100 and the second car 200 have no passengers in the first car 100 and the second car. It is possible to allow the coupling or separation between the 2 cars 200 to be performed.

The distance sensor is used to detect the distance between the first car 100 and the second car 200 from the top surface of the first car 100 or the bottom surface of the second car 200 It may be provided with a laser sensor or an ultrasonic level sensor that senses the distance of the object toward the upper surface of the first car 100.

Thus, the control unit 500 may receive the distance information of the car compartment from the distance sensor and maintain the minimum distance between the cars in the first driving mode and the second driving mode based on the distance information between the approved cars, At this time, the minimum distance between cars for each driving mode is set differently.

In addition, the control unit 500 determines that the first coupling member 110 and the second coupling member 210 are separated when the distance information between cars applied from the distance detection sensor exceeds the set maximum distance. Thus, the operation of the first car 100 and the second car 200 may be stopped.

When the distance sensor is not separately provided, the control unit 500 receives the respective position information by the position detection means of the first car 100 and the second car 200 provided, and the respective position information Based on, distance information between the first car 100 and the second car 200 may be calculated.

The state detection sensor is provided to detect a state of coupling or separation between the first coupling member 110 and the second coupling member 210 to be described later, and in the vicinity of the first coupling member 110 or the second coupling member 210 The first coupling member and the second coupling member may be arranged to face the coupling point and provided with a laser sensor that senses the coupling/separation state, and the first coupling member 110 or the second coupling member 210 is an electrical means. When coupled by, the first coupling member 110 and the second coupling member 210 are disposed inside the first coupling member 110 or the second coupling member 210 to sense the flow of electricity for coupling. It may be provided with a sensor that detects the combined/disconnected state of.

In addition, the controller 500 may receive the coupling/separation information from the state detection sensor and monitor the coupling/separation state between the first car 100 and the second car 200 based on the received coupling/separation information. .

2 is a view showing a state in which the elevator system according to the first embodiment of the present invention is operated while the operation mode is switched.

Referring to FIG. 2, the controller 500 may control the operation so that the first car 100 and the second car 200 are selectively operated in one of the first driving mode and the second driving mode.

The control unit may control the operation so that the first car 100 and the second car 200 are operated in a second driving mode, as shown in a and b of FIG. 2.

When the passenger calls the first car 100 and the second car 200 in the second operation mode, the control unit 500 allows the passenger to enter the destination floor in advance, and the input destination floor and the first car and the second car According to the current floor of the car and the operating conditions of the first car and the second car, among the first car 100 and the second car 200, an elevator to be used by the passenger who entered the destination floor is assigned, and the first car 100 And a group management system that operates the second car 200, and the operating floor of the first car and the second car at this time is flexibly determined by the control unit 500, and the control unit ( 500) may maintain a minimum safety distance between the first car 100 and the second car 200.

In addition, the control unit 500 may set different operating floors of the first car 100 and the second car 200 to operate in the second driving mode.

For example, in the case of operating in the second operation mode in a building provided from the 5th floor to the 10th floor below the ground, the first car 100 is operated from the 5th floor below the ground level to the 1st floor above the ground, and the second car 200 It is possible to operate from the 1st floor to the 10th floor so that passengers can select and board a car according to their destination, and on the 1st floor where both the first car 100 and the second car 200 are operated, it is possible to transfer to another car. .

In addition, the control unit 500 operates in a third operation mode in which the first car 100 stops at the lowest floor and the second car 200 operates from the uppermost floor to the uppermost floor in the second operation mode as necessary. By doing so, energy consumption can be minimized.

Specifically, it is possible to operate in the third operation mode by setting a time zone in which the floating population in the building is the least, or to operate in the third operation mode when there are no passengers of the elevator during the set time.

In addition, when operating in the third operating mode, the control unit 500 may allow the first car 100 to stop on the lowest floor with relatively few users, but if the elevator system is installed in a building with fewer users on the highest floor In this case, the first car 100 may be operated while the second car 200 is stopped on the top floor.

If, while operating in the third operation mode, if there is a passenger who wants to move to the lowest floor or there is a passenger who wants to move from the lowest floor to another floor, the third operation mode is terminated and the third operation mode is switched to the second operation mode. You can do it.

On the other hand, the control unit 500, as the first car 100 and the second car 200 move up and down close to the coupling reference distance state, the first coupling member 110 and the second coupling member 130 to be described later are mutually Operation can be controlled to be combined.

Here, the coupling reference distance is a state in which the first car 100 and the second car 200 are close to each other at a distance such that the first coupling member 110 and the second coupling member 130 can be coupled to each other.

In the process of switching the driving mode of the first car 100 and the second car 200, the control unit 500 performs a switching mode state in which the first car 100 and the second car 200 are coupled/separated. As much as possible, the first car 100 and the second car 200 may be operated and controlled.

At this time, the conversion mode is divided into a combined conversion mode in which the first car 100 and the second car 200 are combined, and a separate conversion mode in which the first car 100 and the second car 200 are separated, and the control unit 500 denotes a first step movement in which the first car 100 and the second car 200 move closer to each other in a standby reference distance state that is greater than the combination reference distance in the combined conversion mode, and the first car 100 and The operation may be controlled to perform a two-step movement process in which the second cars 200 move closer to each other from the standby reference distance state to the combined reference distance state.

In addition, the control unit 500 may control the operation so that the moving speed of the first car 100 and the second car 200 is lower than the driving speed in the first and second driving modes in the second-stage movement process.

In this case, the driving speed in the first and second driving modes means the average driving speed, and the moving speed in the second stage movement process also means the average moving speed.

The control unit 500 allows the first car 100 to stop on the lowest floor in the coupling switching mode, and allows the second car 200 to move closer to the first car 100, so that the coupling between the cars is made at the lowest floor. However, the coupling position between the cars in the coupling conversion mode can be changed as necessary.

Referring to FIG. 2C, a process in which the first car 100 and the second car 200 are combined in the combined conversion mode will be described. In the combined conversion mode, the first car 100 is located on the lowermost floor. Make sure to stop, and make the second car 200 move downward toward the first car 100, but the first and second operation to the position (S2) that is the standby reference distance to the first car 100 The first step of moving at the same speed as the driving speed in the mode is performed, and the position (S1) that is the reference distance to the first car 100 is higher than the driving speed in the first and second driving modes. The first car 100 and the second car 200 become a reference distance state by performing a two-step movement process moving at a low speed, and the first car 100 is controlled to be coupled to each other in the reference distance state. And the second car 200 may be coupled.

On the other hand, the control unit 500 may control the operation so that the first car 100 and the second car 200 move in a direction away from each other from a combined reference distance state to a standby reference distance state in the separation switching mode.

Specifically, the control unit 500 may control the operation so that the moving speed of the first car 100 and the second car 200 is lower than that in the first and second driving modes in the separate switching mode.

And, as in the combined conversion mode, the control unit 500 operates to move the second car 200 upwardly away from the first car 100 while moving the first car 100 and the second car to be located on the lowest floor. By controlling, the cars can be separated from each other.

On the other hand, the control unit 500 may operate in the second driving mode as shown in FIG. 2E. At this time, the control unit 500 may allow the operating floors of the first car and the second car to be divided into even and odd floors. Regardless of the division of the floor, the first car 100 is the lowermost floor and the uppermost floor is the second floor. 2 The car 200 can be operated.

For example, even when the second car 200 is set to operate on an even-numbered floor, the control unit 500 may allow the second car 200 to operate on both the 10th and 11th floors when the top floor is the 11th floor.

3 is a view showing a state in which the first car 100 and the second car 200 according to the first embodiment of the present invention are separated, and FIG. 4 is a first car according to the first embodiment of the present invention. It is a view showing a state in which (100) and the second car (200) are coupled.

3 to 4, the first car 100 and the second car 200 are arranged up and down on the same guide rail (G) to be coupled or separated from each other. To this end, the first car 100 is A first coupling member 110 for coupling or separation with the second car 200 is provided on the upper side, and the second car 200 is a second car 200 for coupling or separation with the second car 200 on the lower side. The coupling member 210 may be provided so that the first car 100 and the second car 200 may be coupled or separated from each other.

At this time, the first coupling member 110 and the second coupling member 210 are provided in a pair of males and females to be coupled or separated from each other, and the coupling between the first coupling member 110 and the second coupling member 210 / The separation method may be coupled/separated by one or more of a mechanical coupling method, a hydraulic coupling method, or an electromagnet coupling method.

For example, the first coupling member 110 is formed to protrude upward from the upper surface of the first car 100 to have a predetermined length, and the second coupling member 210 is formed from the lower surface of the second car 200 It is formed to protrude downward to have a predetermined length, it may be provided in the shape of a hollow hollow cylinder so that the first coupling member 110 can be inserted. At this time, the second coupling member 210 is provided so that an electronic coil is disposed around the first coupling member 110 inserted in the state in which the first coupling member 110 is inserted, and the first coupling member ( The first coupling member 110 may be coupled to or separated from the second coupling member 210 by maintaining or releasing the inserted state.

And the first coupling member 110 and the second coupling member 210 are coupled so that the distance between the first car 100 and the second car 200 is flexible, so that the first car and the second car are mounted Can be made adjustable.

For example, when the first coupling member 110 and the second coupling member 210 are provided in a coupling/separation method by an electromagnet, the second coupling member 210 allows different electronic coils to be arranged for each height, If necessary, by adjusting the height of generation of the electromagnetic force by varying the electromagnetic coil generating the electromagnetic force, the coupling position where the first coupling member 110 is coupled to the second coupling member 210 can be made to flow.

In addition, when the distance between the cars in the first driving mode is coupled so that the distance between the cars is flexible, the control unit 500 controls the first driving unit 300 and the second driving unit 400 to be individually connected to each other to control the first car and the second car. The landing position of the can be adjusted.

In the case of a collision between the first car 100 and the second car 200, the first car 100 is formed to protrude upward a predetermined distance from the upper surface in order to alleviate the impact caused by the collision, and increase vertical elasticity. A buffer member 130 provided to have may be provided. In this case, the buffer member may be provided so as to protrude downward a predetermined distance from the lower surface of the second car 200 as well as the first car 100.

In addition, safety devices such as brakes, shock absorbers, emergency stop devices, and governors are individually provided in the first car 100 and the second car 200, which are provided in a general elevator system in which one car is arranged in one hoistway. Therefore, safety can be guaranteed even during independent operation.

Meanwhile, as described above, the first driving unit 300 is provided for elevating and lowering the first car 100, and for this purpose, the first driving unit 300 includes a first traction machine 310 and a first suspension sheave ( 330), a first rope 350, a first counterweight 370, and a first counterweight sheave 390.

The first hoisting machine 310 is disposed on one side of the upper side of the hoistway to generate a driving force to drive the first car 100 up and down, and the first suspension sheave 330 is fixed to the lower end of the first car 100 Can be.

The first rope 350 may be wound around the first hoist 310 and the first suspension sheave 330 so that the first car 100 is traction and moved according to the operation of the first hoist 310.

And the first counterweight 370 is to be connected to the first rope 350 so that the load acts in a direction opposite to the traction force acting on the first car in order to compensate the load of the first car 100 and the passenger of the first car. The first counterweight sheave 390 may be wound around the first rope 350 while the first counterweight 370 is connected so that the first counterweight 370 is connected to the first rope 350.

Specifically, as shown in Figure 3, the first rope 350 is wound with a first counterweight sheave 390 on one side with both ends fixed to the hoistway, and a first suspension sheave 330 on the other side It may be disposed between the first counterweight 370 and the first suspension sheave 330 so as to be wound around the first traction machine 310.

Meanwhile, as described above, the second driving unit 400 is provided for elevating and lowering the second car 200, and for this purpose, the second driving unit 400 includes a second traction machine 410 and a second suspension sheave ( 430), a second rope 450, a second counterweight 470, and a second counterweight sheave 490.

The second hoisting machine 410 is disposed on the other side of the upper side of the hoistway to generate a driving force to drive the second car 400 up and down, and the second suspension sheave 430 is fixed to the top of the second car 200 Can be.

The second rope 450 may be wound around the second hoist 410 and the second suspension sheave 430 so that the second car 200 is traction and moved according to the operation of the second hoist 410.

And the second counterweight 470 is to be connected to the second rope 450 so that the load acts in a direction opposite to the traction force acting on the second car in order to compensate the load of the second car 200 and the passenger of the second car. The second counterweight sheave 490 may be wound around the second rope 450 with the second counterweight 470 connected so that the second counterweight 470 is connected to the second rope 450.

Specifically, as shown in Figure 3, the second rope 450 is wound with a second suspension sheave 430 on one side with both ends fixed to the hoistway, and a second counterweight sheave 490 wound on the other side It may be arranged to be wound around the second traction machine 410 between the second counterweight 470 and the second suspension sheave 430.

The first suspension sheaves 330 may be provided in a pair, and in this case, the pair of first suspension sheaves are mounted to protrude outwardly at both ends of the first car 100 in the width direction, respectively, so that the first rope ( In a section where 350 is connected from the first traction machine 310 to the first suspension sheave 330, it is possible to prevent interference with the elevating path of the first car 100 and the second car 200.

The second suspension sheaves 430 may be provided as a pair, in this case, a pair of second suspension sheaves are mounted at both ends of the second car 200 in the width direction, respectively, and the second suspension sheaves 430 are The first suspension sheaves 330 may be arranged to have a narrower spacing than the spacing between the first suspension sheaves 330.

Accordingly, the section d2 in which the second rope 450 is wound around the second suspension sheave can be formed narrower than the section d1 in which the first rope 350 is wound around the first suspension sheave, so that the second rope It is possible to prevent interference with the first rope 350 in a section where 450 is connected from the second traction machine 410 to the second suspension sheave 430.

If more than two second suspension sheaves 430 are provided, the remaining second suspension sheaves excluding a pair of second suspension sheaves may be arranged in a row to be disposed between the pair of second suspension sheaves. have.

In addition, the second suspension sheaves 430 provided in a pair are arranged so as to intersect with the arrangement direction of the first suspension sheaves 410, thereby minimizing interference between the first and

second ropes

350 and 450, The arrangement of the first suspension sheave 430 and the second suspension sheave 450 may be arranged in various ways to minimize interference between the first and

second ropes

350 and 450.

In addition, the second suspension sheaves 430 provided as a pair are arranged to be arranged to be perpendicular to the arrangement direction of the first suspension sheaves 410, thereby minimizing interference between the first and

second ropes

350 and 450.

In the first operation mode, the controller 500 may mechanically or electrically synchronize the first hoisting machine 310 and the second hoisting machine 410 to control the operation to rotate at the same rotational speed. In the second operation mode, the first Operation may be controlled so that the driving unit 300 and the second driving unit 400 operate independently.

The control unit 500 allows the first traction machine 310 and the second traction machine 410 to be synchronized so that the same traction force is provided to the first car 100 and the second car 200, respectively, in the first operation mode. The car 100 and the second car 200 may be coupled together and the same force in the same direction may be transmitted during the driving process.

Accordingly, it is possible to minimize the external force applied to the first coupling member 110 and the second coupling member 210 in the coupled state in the first operation mode state, in the elevator system according to the present embodiment, the first coupling member Even if the coupling force of the (110) and the second coupling member 210 is not relatively large, the coupling state of the first coupling member 110 and the second coupling member 210 can be maintained while driving in the first driving mode.

5 is a flowchart illustrating a process of switching the operating mode of the elevator system according to the first embodiment of the present invention.

Referring to FIG. 5, the operation mode of the elevator system according to the present embodiment may be manually switched or may be automatically switched by the controller 500 according to a set time and the number of floating populations in the building.

Looking at the process of automatically switching by the controller 500, as shown in FIG. 5, first, the controller 500 may determine whether a set time has arrived (S505).

Here, the set time refers to a time set by which there are many passengers of the elevator, and may be input from the outside, and may be a time determined by the control unit 500 collecting past operation information.

If it is determined that the set time has arrived (S505-Y), the controller 500 may determine whether the vehicle is operating in the first driving mode (S520).

On the other hand, when the set time has not arrived (S505-N), the floating population detection sensor detects the floating population inside the building in which the elevator is installed (S510), and the control unit 500 is from the floating population detection sensor. By receiving the information on the floating population, it may be determined whether the floating population is greater than or equal to a set value (S515).

When the authorized floating population information is less than a set value (S515-N), the controller 500 determines whether the vehicle is operating in the second driving mode (S540), and when the authorized floating population information is greater than the set value (S515-Y) , It may be determined whether the operation is in the first driving mode (S520).

And when it is determined that the elevator system is operating in the first operating mode (S520-Y), the control unit 500 maintains the existing operating mode, but when it is determined that the elevator system is not operating in the first operating mode (S520-N) , It is possible to determine whether passengers exist by receiving passenger information from the passenger detection sensor (S525).

If it is determined that there are passengers (S525-Y), switching to the operation mode may be suspended until there are no passengers.

At this time, the control unit 500 prompts the passengers to get off through the getting off notification means separately provided inside the first car and the second car when the passengers continue to exist for a set time, and until the operation mode is changed, the elevator car By not responding to the call, it is possible to prevent passengers from being present in a short time.

If it is determined that the passenger does not exist (S525-N), the control unit 500 allows the first coupling member 110 and the second coupling member 210 to be coupled to each other to switch to the first driving mode (S530), When the conversion to the first operation mode is completed, the operation may be performed in the first operation mode (S535).

At this time, the control unit 500 receives the coupling/separation state information between the first coupling member 110 and the second coupling member 210 from the state detection sensor, and switches to the first driving mode based on the received state information. It can be determined that this is complete.

In addition, the control unit 500 receives distance information between the first coupling member 110 and the second coupling member 210 from the distance sensor, and switches to the first driving mode when the applied distance information is less than a set distance. It can be determined that this is complete.

In addition, when the conversion to the first driving mode is completed, the control unit 500 converts the system necessary for basic operation such as control of the first car and the second car, military management, and safety into a system set according to the first driving mode. Can be converted.

On the other hand, when the floating population is less than the set value (S515-N), the controller 500 determines whether the elevator system is operating in the second operating mode (S540), and when operating in the second operating mode (S540-Y) , If the existing driving mode is maintained, but it is determined that the second driving mode is not in operation (S540-N), it is possible to determine whether a passenger exists by receiving passenger information from a passenger detection sensor (S545).

If it is determined that there are passengers (S545-Y), the operation mode switching may be suspended until there are no passengers.

When it is determined that the passenger does not exist (S545-N), the control unit 500 causes the first coupling member 110 and the second coupling member 210 to be separated so that it is switched to the second driving mode (S550), When the conversion to the second operation mode is completed, the elevator system may be operated in the second operation mode (S555).

At this time, the control unit 500 receives the coupling/separation state information between the first coupling member 110 and the second coupling member 210 from the state detection sensor, and switches to the second driving mode based on the received state information. It can be determined that this is complete.

In addition, the control unit 500 receives distance information between the first coupling member 110 and the second coupling member 210 from the distance sensor, and when the applied distance information exceeds the set distance, the control unit 500 enters the second driving mode. It can be determined that the conversion is complete.

And when the conversion to the second driving mode is completed, the control unit 500 converts the system necessary for basic operation such as control of the first car and the second car, military management, and safety into a system set according to the second operation mode. Can be converted.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims

A first car provided with a first coupling member;

A second car disposed above the first car in the same hoistway as the first car, and having a second coupling member coupled/separated from the first coupling member; And

And a control unit for controlling the coupling/separating operation and driving operation of the first car and the second car,

The control unit selectively selects one of a first driving mode in which the first car and the second car are operated in a combined state and a second driving mode in which the first and second cars are independently operated in a separated state. Elevator system, characterized in that for controlling the operation of the first car and the second car to be operated by.
The method of claim 1,

The elevator system further comprising a first driving unit and a second driving unit respectively independently connected to the first car and the second car to drive the first and second cars up and down.
The method of claim 2,

The first driving part

A first hoisting machine disposed on an upper side of the hoistway;

A first suspension sheave fixed to a lower end of the first car; And

And a first rope wound around the first traction machine and the first suspension sheave so that the first car is traction moved according to the operation of the first traction machine,

The second driving part

A second hoisting machine disposed on the other upper side of the hoistway;

A second suspension sheave fixed to an upper end of the second car; And

An elevator system comprising a second rope wound around the second traction machine and the second suspension sheave so that the second car is traction moved according to the operation of the second traction machine.
The method of claim 3,

In a section in which the first rope is connected from the first traction machine to the first suspension sheave, the first suspension sheave is at both ends in the width direction of the first car so that it does not interfere with the elevating path of the first car and the second car. Elevator system, characterized in that it is mounted to protrude in the outer direction, respectively.
The method of claim 4,

The second suspension sheaves are mounted at both ends in the width direction of the second car, and the second rope is connected to the second suspension sheave from the second traction machine so as not to interfere with the first rope. 2 The elevator system, characterized in that the suspension sheaves are arranged to have a narrower spacing than the spacing between the first suspension sheaves.
The method of claim 4,

The second suspension sheave is mounted at both ends in the width direction of the second car, and the second rope is connected to the second suspension sheave from the second traction machine so as not to interfere with the first rope. The elevator system, characterized in that the second suspension sheave is arranged to have an arrangement direction crossing the arrangement direction of the first suspension sheave.
The method of claim 3,

The control unit is an elevator system, characterized in that for controlling the operation to rotate at the same rotation speed by mechanically or electrically synchronizing the first traction machine and the second traction machine in the first operation mode.
The method of claim 7,

The control unit is an elevator system, characterized in that for controlling the operation so that the first traction machine and the second traction machine operate independently in the second operation mode.
The method of claim 1,

The first coupling member and the second coupling member are formed to be mutually coupled as the first car and the second car move up and down close to the coupling reference distance state,

The elevator system, characterized in that the first car and the second car are coupled to each other by a combination of the first coupling member and the second coupling member.
The method of claim 9,

The control unit controls the operation of the first car and the second car to perform a switching mode state in which the first car and the second car are combined/separated in the process of switching the driving mode of the first car and the second car. Elevator system.
The method of claim 10,

The control unit is an elevator system, characterized in that for controlling the operation so that the first car and the second car move at a lower speed than the driving speed in the first and second operation modes in at least some sections in the switching mode state.
The method of claim 11,

The conversion mode is

A combined conversion mode in which the first car and the second car are combined, and a separate conversion mode in which the first car and the second car are separated,

The control unit in the combination switching mode

The first and second cars move closer to each other in a standby reference distance state greater than the combined reference distance, and the first and second cars move from the standby reference distance state to the combined reference distance state. Elevator system, characterized in that for controlling the motion to perform a two-step moving process that moves in close proximity.
The method of claim 12,

The control unit is an elevator system, characterized in that for controlling the operation so that the moving speed of the first car and the second car is lower than the driving speed in the first and second operation modes in the second step movement process.
The method of claim 12,

The control unit in the separation switching mode

The elevator system, characterized in that the operation is controlled so that the first car and the second car move in a direction away from each other from the combined reference distance state to the standby reference distance state.
The method of claim 14,

The control unit in the separation switching mode

An elevator system, characterized in that operation-controlled so that the moving speed of the first car and the second car is lower than that in the first and second operation modes.
The method of claim 1,

The elevator system, wherein the first coupling member and the second coupling member are coupled/separated by at least one of a mechanical coupling method, a hydraulic coupling method, and an electromagnet coupling method.
The method of claim 1,

A separate floating population detection sensor that detects the number of floating populations inside the building or at the entrance is provided,

The control unit receives the floating population information from the floating population detection sensor, and switches to the first driving mode or the second driving mode based on the approved floating population information to operate.
The method of claim 1,

A separate passenger detection sensor for detecting the presence or absence of passengers in the first car and the second car is provided,

Wherein the control unit receives passenger information from the passenger detection sensor, and allows switching of the operation mode to be suspended if passengers exist in the first car and the second car based on the authorized passenger information.
The method of claim 1,

A separate distance sensor for sensing the distance between the first car and the second car is provided,

The control unit receives distance information from the distance detection sensor, and makes the distance between the cars in the second operation mode exceed a preset minimum distance based on the distance information between the approved cars. system.
The method of claim 19,

In the first operation mode,

The control unit determines that the first coupling member and the second coupling member are separated when the distance information between the cars applied from the distance detection sensor exceeds a set maximum distance, and the first and second cars are not operated. Elevator system, characterized in that to be stopped.
The method of claim 1,

Elevator system, characterized in that it is provided with a separate state detection sensor for detecting the coupling / separation state between the first coupling member and the second coupling member.
The method of claim 1,

An elevator system, characterized in that a buffer member is provided on an upper surface of the first car or a lower surface of the second car to reduce an impact generated during a collision between cars.