CN113677612B - Tailless cable elevator apparatus and control method for tailless cable elevator apparatus - Google Patents

Abstract

The invention provides a tailless cable elevator device, which judges the state of a battery (112), moves to a power supply layer when the state of the battery (112) is not ideal, and switches to a maintenance operation mode after charging the battery (112). The present invention includes: a battery state diagnosis unit (204) that determines whether or not the battery state is a battery state that can be switched to a maintenance operation mode when the maintenance signal is detected, and switches to the maintenance operation mode; a power suppliable floor determination unit (205) that moves the car to the power suppliable floor when the battery state diagnosis unit (204) determines that the car is not in the battery state that can be switched to the maintenance operation mode; and a charging state determination unit (208) that determines the state of charge of the power suppliable layer by the power suppliable layer determination unit (205) and determines switching to the maintenance operation mode.

Description

Tailless cable elevator device and control method for tailless cable elevator device

technical field

The present invention relates to a tailless rope elevator device configured by mounting a battery on a car and a control method for the tailless rope elevator device.

Background technique

A tail cable for supplying power to lighting equipment and a door driver installed in the car is connected to the car of the elevator apparatus. Since the tail cable moves in conjunction with the vertical movement of the car, the tail cable may collide with the wall surface of the hoistway, and the weight applied to the car may increase. In order to solve this problem, there are tailless elevator apparatuses described in Patent Document 1 and Patent Document 2.

In Patent Document 1, using a power supply device composed of a plurality of power transmitting units installed on the elevator side and a power receiving unit installed on the car side, transmission from the elevator side to the car side is performed in a non-contact manner. In the power supply device for an elevator car of a power supply system, a power supply control unit for turning on and off the plurality of power transmission units is provided. Furthermore, a technique is disclosed in which, when power is supplied to a car, only a power transmission unit corresponding to a stop floor of the car is turned on, and other power transmission units are turned off to suppress an increase in loss.

In addition, Patent Document 2 discloses an elevator apparatus including: a power storage device (battery) mounted on a car and supplying electric power to equipment installed in the car; and a main charging device provided with in the lift passage, and charge the power storage device, wherein an auxiliary charging device for charging the power storage device is set in the interior of the car.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2002-3096

Patent Document 2: Japanese Patent Laid-Open No. 2018-104144

Contents of the invention

The problem to be solved by the invention

In the elevator apparatus of the tailless system, a battery is mounted for supplying power to lighting equipment and door driving devices installed in the car.

However, the elevator apparatuses described in Patent Document 1 and Patent Document 2 do not particularly consider the state of charge of the battery during maintenance operation.

In the elevator device of the tailless cable method, when the car stops at the stop floor where the power transmitting unit is installed, the power transmitting unit and the power receiving unit face each other to supply power to the car and charge the battery. Therefore, the car does not necessarily stop at the stop floor where the power transmission unit is installed, and even at the stop floor where the power transmission unit is provided, it may deviate from the position of the stop floor and stop. In these cases, since the car cannot receive power supply, the equipment in the car receives power supply from a battery installed in the car. If the charge amount of the battery is insufficient, the lighting equipment and the control device installed in the car cannot be operated, or the maintenance work must be performed in a short time in consideration of the operation of the lighting equipment and the control device, and the workability during maintenance is poor.

An object of the present invention is to provide a tailless elevator apparatus and a control method for the tailless elevator apparatus with improved maintenance workability.

means to solve the problem

In order to achieve the above object, the present invention provides a tailless elevator device, comprising: a car; a power receiving unit, which is installed in the car; connected to charge; the power transmission unit is installed on any of the multiple stop floors where the car stops, and transmits power to the power reception unit; and the elevator control device controls the equipment of the elevator. The elevator control device includes: a battery state diagnosis unit for diagnosing the state of the battery; floor movement; and a charge state determination unit that determines the state of charge of the battery when the car is stopped at a stop floor where the power transmission unit is installed, and switches from a normal operation mode to a maintenance operation mode. determination.

In addition, the present invention provides a control method for a tailless elevator device, the tailless elevator device includes: a car; a power receiving unit installed in the car; a battery installed in the car, connected to the power receiving unit for charging; a power transmitting unit that is installed on any of the plurality of stopping floors where the car stops, and transmits power to the power receiving unit; and an elevator control device that In an elevator control device, the control method includes the steps of: diagnosing the state of the battery; and moving the car to a stop floor where the power transmission unit is installed based on the step of diagnosing the state of the battery. steps; and a step of determining a state of charge of the battery and performing a switching determination from a normal operation mode to a maintenance operation mode when the car is stopped at a stop floor where the power transmission unit is installed.

Invention effect

According to the present invention, it is possible to provide a tailless elevator apparatus and a control method for a tailless elevator apparatus with improved maintenance workability. In addition, problems, configurations, and effects other than those described above will be clarified by the description of the following embodiments.

Description of drawings

Fig. 1 is an overall schematic diagram of an elevator apparatus according to an embodiment of the present invention.

Fig. 2 is a structural block diagram of an elevator control device according to an embodiment of the present invention.

Fig. 3 is a flowchart showing processing operations of the elevator apparatus according to the embodiment of the present invention.

detailed description

Hereinafter, embodiments of the present invention will be described based on the drawings.

Fig. 1 is an overall schematic view of an elevator apparatus according to an embodiment of the present invention. In the hoistway 101 of the elevator device 100, there are provided a car 102 that moves vertically in the hoistway 101, a counterweight 103 that moves up and down in the hoistway 101 opposite to the car 102, and a counterweight 103 that connects the car 102 and the counterweight. Heavy 103 steel wire rope 104.

The upper part of the elevator device 100 is equipped with: a hoist 105, which winds the wire rope 104 to move the car 102 in the up and down direction; a sheave 106, which switches the direction of the wire rope 104; and an elevator control device 107, which controls the elevator. equipment to control.

The building in which the elevator apparatus 100 is installed is provided with a stop floor 108 (108a, 108b, 108c) where the car 102 stops.

Elevator apparatus 100 includes power transmission unit 110 (110a, 110b) for supplying power to car 102 via power line 109 when car 102 stops at predetermined stop floors 108a, 108c. The stop layers 108a, 108c provided with the power transmission parts 110a, 110b are referred to as power supply capable layers. The power supply capable floors (stopping floors 108 a and 108 c ) where the power transmission unit 110 is installed are, for example, arbitrary positions such as the first floor, the tenth floor, and the 20th floor of a building. When providing a power supply-able floor, it is preferably a floor where the number of stops of the car is high.

An upper portion of the car 102 is provided with a power receiving unit 111 that receives electric power from the power transmitting unit 110 (110a, 110b) when the car 102 stops at the positions of the stopping floors 108a, 108c. Power reception unit 111 receives electric power by facing power transmission unit 110 (110a, 110b). In power transmission unit 110 and power reception unit 111 , electric power is transmitted from power transmission unit 110 to power reception unit 111 using, for example, electromagnetic induction. In addition, a battery 112 that charges a part of the electric power received by the power receiving unit 111 is provided on the upper portion of the car 102 . The elevator apparatus 100 is equipped with the signal line 113 for grasping the state of the power transmission part 110 (110a, 110b).

During normal operation of the elevator apparatus 100, the car 102 stops at the positions of the respective stop floors 108a, 108b, and 108c. When the car 102 stops at the stopping floors 108a and 108c, the power transmitting unit 110 (110a, 110b) faces the power receiving unit 111, and the power receiving unit 111 receives electric power from the power transmitting unit 110 (110a, 110b). Battery 112 is charged with electric power received by power reception unit 111 .

Maintenance such as inspection and component replacement is performed in the elevator apparatus 100 . When performing maintenance, switch from the normal operation mode to the maintenance operation mode to execute. In the maintenance operation mode, the car 102' may stop at a position deviated from the stop floor 108c, as shown by a dotted line in Fig. 1 . In this state, since power transmission unit 110 b and power reception unit 111 do not face each other, power reception unit 111 cannot receive electric power, and maintenance work is performed exclusively by electric power charged in battery 112 . When the amount of charge of the battery 112 is insufficient, the operation of the equipment in the maintenance work cannot be performed, and the maintenance work has to be interrupted. A method for preventing this will be described below.

Fig. 2 is a structural block diagram of an elevator control device according to an embodiment of the present invention. In Fig. 2, the elevator control device 107 has: a maintenance signal transmission part 201, which sends a maintenance signal through the operation of a maintenance personnel; a maintenance signal reception part 202, which receives a maintenance signal from the maintenance signal transmission part 201; an elevator state monitoring part 203, which monitors various states of the elevator; the battery state diagnosis unit 204, which diagnoses the state of the battery 112 mounted on the car 102; Moving to the stop floor 108a, 108c where the power transmission unit 110 (110a, 110b) is installed; the door opening and closing/broadcasting control unit 206, which controls the control and guidance broadcasting related to the door opening and closing of the car 102; the charging control unit 207 , which controls the charging of the battery 112 mounted on the car 102 at the power supply capable floor; the charging state determination unit 208, which is in a state where the car 102 is stopped at the stop floors 108a, 108c where the power transmission unit 110 (110a, 110b) is installed. Next, determine the state of charge of the battery 112, and perform switching judgment from the normal operation mode to the maintenance operation mode; the storage unit 209 stores a maintenance operation mode switching program and the like; and a control unit that controls each part based on the maintenance operation mode switching program 210 etc.

The battery state diagnosis unit 204 determines whether or not the battery 112 can be switched to the maintenance operation mode when a maintenance signal is detected. When it is determined by the battery state diagnosis unit 204 that the battery 112 is not in a state where the battery 112 can be switched to the maintenance operation mode, the power supply floor determination unit 205 directs the car 102 to the stop floor 108a, 108c where the power transmission unit 110 (110a, 110b) is installed. move.

Fig. 3 is a flowchart showing processing operations of the elevator apparatus according to the embodiment of the present invention.

In step S301, when the maintenance personnel performs the operation of sending a mechanical maintenance signal based on a switching operation of a mechanical switch or a soft maintenance signal for switching by a maintenance tool in order to switch from the normal operation mode to the maintenance operation mode , a signal is sent from the maintenance signal transmitting unit 201 to the maintenance signal receiving unit 202 . The maintenance signal receiving unit 202 that has received this signal supplies an operation signal to the battery state diagnosis unit 204 while using various signals held by the elevator state monitoring unit 203 .

In step S302, the battery state diagnosis unit 204 determines whether or not the battery 112 mounted on the car 102 is in a battery state capable of being switched to the maintenance operation mode. As a result, if the state of the battery is such that switching to the maintenance operation mode is possible (Yes in step S302 ), the process proceeds to step S309 to immediately switch to the maintenance operation mode.

In step S302, when the battery state diagnosis unit 204 judges that the battery state is not capable of being switched to the maintenance operation mode (No in step S302), the car 102 starts to move the car 102 to the power supply capable floor (stop floor 108a, stop floor 108a, 108c) Preparation for movement. At this time, in order not to cause the car 102 to be closed due to passengers entering the car 102, the elevator control device 107 includes a door closing completion detection unit (not shown) of the car 102 to detect the opening and closing state of the door.

In step S303, when the door closing completion detection part detects that the car 102 of the elevator is in a stopped state, the door closing is completed (Yes in step S303), in step S304, the power supply floor determination part 205 based on the information from the elevator state monitoring part 203 information, using the current location data and the available floor data to determine the nearest available floor (docking floor 108a or docking floor 108c).

When the car 102 is moved to a power supply capable floor (stop floor 108a or stop floor 108c), in step S305, a normal operation mode judging unit (not shown) determines whether normal operation mode operation is possible. The normal operation mode refers to a mode in which the elevator operates in a state where no failure occurs.

In step S306, if the elevator can move in the normal operation mode, the door opening/closing/announcement control unit 206 will give guidance to urge to leave the car 102. The door opening/closing/announcement control unit 206 notifies the passenger to leave the car 102 immediately by sound or the like in order to prevent passengers from remaining in the car 102 .

After the car movement guidance is performed by the door opening/closing/announcement control unit 206, in step S307, the car 102 is moved to the determined power supply capable floor at high speed.

In the power supply capable layer (stop layer 108a or stop layer 108c), charging of the battery is started by the charging control unit 207, and the state of charge is monitored. Thereafter, in step S308 , charging control unit 207 determines, for example, whether or not the battery is in a state of charge equal to or greater than a predetermined value within a predetermined time set in advance, and is in a state capable of being switched to the maintenance operation mode. As a result, if the storage state of the battery is good (YES in step S308), the operation mode is switched to the maintenance operation mode in step S309.

As described above, in this embodiment, when the elevator control device 107 receives a switching signal to switch to the maintenance operation mode, it does not switch immediately, but temporarily judges the battery 112 mounted on the car 102 through the battery state diagnosis unit 204. Is the battery status capable of switching to maintenance run mode. Furthermore, in the present embodiment, even if the charge amount of the battery is small and the battery state is not ideal, the maintenance operation mode is not immediately switched to, but if the battery state diagnostic unit 204 determines that the battery state is unsatisfactory state, the car 102 is moved to a power supply-able floor (the stop floor 108a or the stop floor 108c), and the battery 112 can be charged and then switched to the maintenance operation mode.

According to this embodiment, an efficient maintenance operation method can be realized, and maintenance workability can be improved. In addition, since the determination by the battery state diagnosis unit 204 is performed as early as possible, if the battery state is good, it is possible to directly shift to the maintenance operation mode.

On the other hand, in step S303, when it is determined by the door closing completion detection part that door closing is not completed, in step S310, it is determined whether switching to the maintenance operation mode based on the soft maintenance signal is possible. This is because, in the case of maintenance based on a soft signal, the situation inside the car 102 cannot be confirmed, so it is a process to prevent being locked in the car 102 when a passenger is on board. In the state, maintenance based on soft signals is not accepted. When switching of the maintenance operation mode by the soft signal is accepted in step S310 (YES in step S310 ), the soft signal is reset in step S312 and ends.

On the other hand, in step S310, when the door closing completion detection unit judges that it is not maintenance based on the soft signal but the door opening caused by other factors is detected, the door opening/closing/broadcasting control unit 206 in step S311 in order to prevent The closing of the car 102 occurs, and the door-closing operation is performed after the door-closing guidance is performed. Then, return to step S303, the completion of door closing is monitored by the door closing completion detection unit.

Moreover, in said step S305, when it is judged that it is not a normal operation mode (No of step S305), the normal operation mode determination part determines whether the elevator can start in step S313. As a result, when the elevator can be started (yes in step S313), the door opening/closing/announcement control unit 206 has carried out the movement guidance of the car 102 in step S314, and then in step S315, the car 102 has been moved at a low speed. Move to the powerable layer. That is, the normal operation mode determination part judges in step S313 that this state is a state of stopping due to a certain failure not in the normal operation mode, and is not a failure of an important part, and moves the car 102 to a power supplyable floor by running at a low speed. .

However, when the normal operation mode determination unit determines in step S313 that, for example, an important part fails and the elevator cannot be started (No in step S313), it switches to the maintenance operation mode in step S309.

In this way, in step S305, the determination based on the normal operation mode determination section is performed, so that the car 102 can be moved to the power supplyable floor with high-speed operation, or the car 102 can be moved to the power supplyable floor with a low speed operation, or not to the power supplyable floor. By switching to the maintenance operation mode due to layer movement, effective selection according to the situation can be performed.

Furthermore, in step S308, if the power storage state has not reached a predetermined value or more within a preset predetermined time (No in step S308), although the maintenance personnel cannot move the car 102, because yes, the car 102 cannot be moved. Since the mode does not respond to normal calls, charging continues in the maintenance standby mode in step S316.

As mentioned above, in the conventional tailless elevator apparatus, when switching to the maintenance operation mode, the monitoring or charging of the battery state of charge is not considered in particular, but in this embodiment, the diagnosis of the battery 112 in step S302 is added. The state of the battery state diagnosis unit 204 . Therefore, instead of immediately switching to the maintenance operation mode when the battery status is unsatisfactory, the battery status diagnostic unit 204 determines whether it is good or not, and can move to the power supply level when the battery status is unsatisfactory to perform maintenance of the battery 112. Switch to maintenance operation mode after charging.

In addition, in step S303, since the door closing is monitored by the door closing completion detection unit, it is possible to realize an efficient maintenance operation method while preventing maintenance personnel from being closed.

For tail cables in long-travel elevator installations, the load on the system increases due to the increase in mass, which leads to an increase in the axle load of the machine, and the response to cable runaway. Therefore, the signal transmission and reception between the elevator control device 107 and the car 102 is performed by wireless communication. In addition, for the power supply to the equipment of the car 102, a battery and a charging unit are provided in the car 102, and the car 102 is equipped with a battery on a power supply capable floor. The electric power supply device can be charged in a non-contact manner while the elevator is stopped, and the elevator device can be operated, thereby reducing the tail cable itself.

However, there is a restriction in the maintenance operation mode depending on the state of the battery, but this problem can be solved as described above.

Furthermore, since it is performed by the door opening/closing/announcement control unit 206 before the car moves to the floor where the electric power supply is possible, it is possible to easily prevent unintentional closing by utilizing the existing guidance announcement.

In addition, in this embodiment, the case where the battery state diagnosis unit 204 is provided for diagnosing the state of the battery mounted on the car is provided, and the battery state is confirmed by the battery state diagnosis unit 204 when switching to the maintenance operation mode is described. The battery capacity can be monitored by transmitting the battery capacity to the elevator state monitoring unit 203 side at appropriate intervals, and the monitoring result can be taken out and judged at the timing when switching to the maintenance operation mode.

In short, according to the above-mentioned cable-free elevator apparatus, by allowing or restricting the switching to the maintenance operation mode by the battery state diagnosis unit 204, it is possible to prevent maintenance personnel from being blocked and efficiency reduction.

In addition, since the determination by the battery state diagnosis unit 204 is performed in step S302, even if the state of charge of the battery 112 is not sufficient, as long as it is within a predetermined condition, that is, only one operation from the power supply capable layer, the elapsed time If it is less than 10 minutes, etc., switching to the maintenance operation mode can also be permitted at the operation level, and convenience can be maintained. Furthermore, when the floor on which the maintenance operation mode is operated is a floor other than a power supply-capable floor, by switching to the maintenance operation mode after moving to a power supply-capable floor, it is also possible to prevent a decrease in maintenance efficiency. However, if the state of charge of the battery is inappropriate, there may be a failure that cannot be started depending on the state, so if it is a failure that cannot be started, switch to the maintenance operation mode at the operation level.

As described above, the present invention is characterized in that it includes: the battery state diagnostic unit 204 that determines whether or not the battery is in a state that can be switched to the maintenance operation mode when a maintenance signal is detected, and switches to the maintenance operation mode; part 205, which moves the car to the floor where the power supply is possible when it is determined by the battery state diagnosis part 204 that the state of the battery is not capable of being switched to the maintenance operation mode; The power storage state of the power supply layer is determined to be switched to the maintenance operation mode.

According to such a configuration, instead of immediately switching to the maintenance operation mode when the battery status is unsatisfactory, the battery status diagnostic unit 204 determines the status, and when the battery status is unsatisfactory, it is possible to move to the power supply layer and supply power. Switch to maintenance mode.

In addition, in addition to the above configuration, a normal operation mode determination unit is further provided, and the normal operation mode determination unit determines whether the normal operation mode is performed when the battery state diagnosis unit 204 determines that the battery state is not in a state that can be switched to the maintenance operation mode. model.

According to such a configuration, it can be judged whether to move the car at a high speed to the floor where the power supply is possible or to move the car at a low speed to the floor where the power supply is possible, so that an efficient selection according to the situation can be performed.

In addition, this invention is not limited to the said Example, Various modification examples are included. For example, the above-described embodiments are examples described in detail to explain the present invention in an easy-to-understand manner, and are not necessarily limited to having all the described configurations. In addition, a part of the structure of a certain example can be replaced with the structure of another example, and the structure of another example can also be added to the structure of a certain example. In addition, addition, deletion, and replacement of other configurations can be performed on a part of the configurations of the respective embodiments.

Explanation of reference signs

100...elevator device, 101...elevator passage, 102...car, 103...balance weight, 104...wire rope, 105...hoist, 106...cable pulley, 107...elevator control device, 108, 108a, 108b, 108c...stop floor, 109…power line, 110, 110a, 110b…power transmission unit, 111…power receiving unit, 112…battery, 113…signal line, 201…maintenance signal sending unit, 202…maintenance signal receiving unit, 203…elevator status monitoring unit, 204...battery state diagnosis unit, 205...power supply level determination unit, 206...door opening/closing/broadcast control unit, 207...charging control unit, 208...charging state judgment unit, 209...storage unit, 210...controlling unit.

Claims (8)

1. A tailless cable elevator device is provided with: a car; a power receiving unit provided in the car; a battery provided in the car and connected to the power receiving unit to be charged; a power transmission unit that is provided at any one of a plurality of stopping floors at which the car stops and that transmits power to the power reception unit; and an elevator control device for controlling the elevator, characterized in that,

the elevator control device is provided with:

a battery state diagnosis unit that diagnoses a state of the battery;

a power supply layer determining unit that moves the car to a stop layer on which the power supply unit is provided, based on the diagnosis by the battery state diagnosing unit; and

and a charging state determination unit that determines a charging state of the battery and performs a determination of switching from a normal operation mode to a maintenance operation mode in a state where the car is stopped at a stop floor where the power transmission unit is provided.

2. The ropeless elevator apparatus according to claim 1,

the battery state diagnosis unit determines whether the battery can be switched to the maintenance operation mode when a maintenance signal is detected.

3. The ropeless elevator apparatus according to claim 2,

when the battery state diagnosis unit determines that the battery is not in a state in which the maintenance operation mode can be switched, the power suppliable layer determination unit moves the car to a stop layer on which the power transmission unit is provided.

4. The ropeless elevator apparatus according to claim 3,

the tailless cable elevator device is provided with: and a door closing completion detection unit that detects an open/close state of a door of the car when the car is moved to a stop floor where the power transmission unit is provided.

5. The ropeless elevator apparatus according to claim 2,

the tailless cable elevator device is provided with: and a normal operation mode determination unit that determines whether or not the elevator can be operated in a normal operation mode when the battery state diagnosis unit determines that the battery is not in a state in which the battery can be switched to the maintenance operation mode.

6. The tailless rope elevator apparatus according to claim 5,

the tailless cable elevator device is provided with: and a door opening/closing/broadcasting control unit that urges the elevator to leave the car when the normal operation mode determination unit determines that the elevator can be operated in the normal operation mode.

7. The tailless rope elevator apparatus according to claim 3,

the tailless cable elevator device is provided with: and a charging control unit that monitors a charging state of the battery after the car is moved to a stop floor on which the power transmission unit is installed and charging of the battery is started.

8. A method for controlling a tailless cable elevator apparatus, the tailless cable elevator apparatus comprising: a car; a power receiving unit provided in the car; a battery provided in the car and connected to the power receiving unit to be charged; a power transmission unit that is provided at any one of a plurality of stopping floors at which the car stops and that transmits power to the power reception unit; and an elevator control device for controlling the elevator, characterized in that,

the control method comprises the following steps:

a step of diagnosing a state of the battery;

moving the car to a stop floor on which the power transmission unit is provided, based on the step of diagnosing the state of the battery; and

and determining a state of charge of the battery in a state where the car is stopped at a stop floor where the power transmission unit is provided, and performing determination of switching from a normal operation mode to a maintenance operation mode.

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