JP7143517B2 - Tail cordless elevator system and control method for tail cordless elevator system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a tail cordless elevator system having a battery mounted in a car and a control method for the tail cordless elevator system.

A tail cord is connected to the car of the elevator apparatus to supply power to lighting equipment and a door driving device installed in the car. Since the tail cord moves in accordance with the vertical movement of the car, the tail cord may collide with the walls of the hoistway and the weight of the car may increase. In order to solve this problem, there is a tail cordless type elevator apparatus as described in Patent Document 1 and Patent Document 2.

In Patent Document 1, a power supply device consisting of a plurality of power transmission units installed on the hoistway side and a power receiving unit installed on the car side is used, and electric power is supplied from the hoistway side to the car side in a non-contact manner. A power supply device for a car includes power supply control means for turning on and off the plurality of power transmission units. Then, when supplying power to the car, a technology is disclosed in which only the power transmission unit corresponding to the floor where the car stops is turned on, and the other power transmission units are turned off to suppress an increase in loss. .

Further, Patent Document 2 discloses a power storage device (battery) that is mounted on a car and that supplies electric power to equipment installed in the car, and a main charging device that is installed in a hoistway and charges the power storage device. 2. Description of the Related Art A technology is disclosed in which an auxiliary charging device for charging a power storage device is provided in an elevator car.

JP-A-2002-3096 JP 2018-104144 A

A tail cordless elevator system is equipped with a battery for supplying power to a lighting device and a door driving device installed in a car.

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

In the tail cordless elevator system, when the car stops at the stop floor where the power transmission section is installed, the power transmission section and the power receiving section face each other to supply power to the car and charge the battery. does not always stop at the stop floor where the power transmission unit is installed, and even if it is the stop floor where the power transmission unit is installed, it may stop at a position shifted from the stop floor. In these cases, the car cannot receive power, so the equipment in the car will be powered by the battery installed in the car. If the battery charge is insufficient, the lighting equipment and control equipment installed in the car cannot operate, or maintenance work must be performed in a short time considering the operation of the lighting equipment and control equipment. It had to be done, and the workability in maintenance was poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tail cordless elevator system and a control method for the tail cordless elevator system with improved maintenance workability.

In order to achieve the above object, the present invention provides 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, and a system in which the car stops. In a tail cordless elevator system comprising a power transmission unit installed on an arbitrary stop floor among a plurality of stop floors to transmit power to the power receiving unit, and an elevator control device for controlling elevator equipment, the elevator control device comprises the A battery state diagnosis unit that diagnoses a state of a battery, a power supply available floor determination unit that moves the car to a stop floor where the power transmission unit is installed according to the diagnosis of the battery state diagnosis unit, and the power transmission unit are installed. The state of charge of the battery is determined in the state where the car is stopped at the stopped floor, and the state of charge of the battery is determined, and the determination of switching from the normal operation mode to the maintenance operation mode is performed based on the determination result of the state of charge of the battery. It is characterized by comprising a part.

Further, the present invention includes 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, and a plurality of stop floors at which the car stops. A control method for a tail cordless elevator apparatus, which is installed on an arbitrary stop floor and includes a power transmission unit that transmits power to the power reception unit, and an elevator control device that controls elevator equipment, wherein the elevator control device is installed in the battery diagnosing the state of the battery; moving the car to a stop floor where the power transmission unit is installed according to the step of diagnosing the state of the battery; and moving the car at the stop floor where the power transmission unit is installed. and determining the state of charge of the battery in a state where the is stopped, and determining whether to switch from the normal operation mode to the maintenance operation mode based on the determination result of the state of charge of the battery . .

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

1 is an overall schematic diagram of an elevator apparatus according to an embodiment of the present invention; FIG. 1 is a block configuration diagram of an elevator control device according to an embodiment of the present invention; FIG. It is a flowchart which shows the processing operation of the elevator apparatus based on the Example of this invention.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall schematic diagram of an elevator apparatus according to an embodiment of the present invention. In the hoistway 101 of the elevator apparatus 100, there are a car 102 that moves vertically in the hoistway 101, a counterweight 103 that moves vertically in the hoistway 101 relative to the car 102, and a car. A wire rope 104 connecting 102 and counterweight 103 is provided.

Above the elevator apparatus 100, there are a hoisting machine 105 for hoisting the wire rope 104 to move the car 102 in the vertical direction, a sheave 106 for changing the direction of the wire rope 104, and an elevator control device for controlling the equipment of the elevator. 107 are provided.

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

The elevator apparatus 100 is provided with a power transmission section 110 (110a, 110b) for supplying power to the car 102 via the power line 109 when the car 102 stops at the predetermined stop floors 108a, 108c. . The stop floors 108a and 108c on which the power transmission units 110a and 110b are installed are referred to as power-suppliable floors. The power-supplyable floors (stop floors 108a and 108c) where the power transmission unit 110 is installed are, for example, arbitrary positions such as the 1st floor, the 10th floor, and the 20th floor of the building. It is preferable to select a floor where the number of car stops is large when setting up the floor where power can be supplied.

Above the car 102, a power receiving unit 111 is provided that receives power from the power transmitting unit 110 (110a, 110b) when the car 102 stops at the stop floors 108a, 108c. The power receiving unit 111 receives power by facing the power transmitting unit 110 (110a, 110b). The power transmission unit 110 and the power reception unit 111 transmit power from the power transmission unit 110 to the power reception unit 111 using, for example, electromagnetic induction. Moreover, a battery 112 that charges part of the power received by the power receiving unit 111 is provided on the top of the car 102 . The elevator apparatus 100 is provided with a signal line 113 for grasping the state of the power transmission section 110 (110a, 110b).

During normal operation of the elevator system 100, the car 102 stops at each stop floor 108a, 108b, 108c. When the car 102 stops at the stop floors 108a, 108c, the power transmission unit 110 (110a, 110b) and the power reception unit 111 face each other, and the power reception unit 111 receives power from the power transmission unit 110 (110a, 110b). The power received by the power receiving unit 111 is charged in the battery 112 .

In the elevator apparatus 100, maintenance such as inspection and parts replacement is performed. Maintenance is performed by switching from the normal operation mode to the maintenance operation mode. In the maintenance operation mode, the car 102' may stop at a position deviated from the stop floor 108c as indicated by the dashed line in FIG. In this state, since the power transmission unit 110b and the power reception unit 111 do not face each other, the power reception unit 111 cannot receive power, and the maintenance work is performed solely relying on the power charged in the battery 112. FIG. When the charge amount of the battery 112 is insufficient, the equipment under maintenance work cannot be operated, and the maintenance work has to be interrupted. Means for preventing this will be described below.


FIG. 2 is a block configuration diagram of an elevator control device according to an embodiment of the present invention. In FIG. 2, the elevator control device 107 includes a maintenance signal transmission section 201 that transmits a maintenance signal by operation of a maintenance worker, a maintenance signal reception section 202 that receives the maintenance signal from the maintenance signal transmission section 201, and various states of the elevator. a battery state diagnosing unit 204 for diagnosing the state of the battery 112 mounted on the car 102; and a power transmitting unit 110 (110a , 110b) are installed to stop floors 108a and 108c, a door opening/closing/broadcasting control unit 206 for controlling door opening/closing of the car 102 and guidance announcement, and When the car 102 is stopped at the stop floors 108a and 108c where the charging control unit 207 and the power transmission unit 110 (110a, 110b) are installed, the battery 112 is charged. Determining the state of charge, a state of charge determination unit 208 for determining whether to switch from the normal operation mode to the maintenance operation mode, a storage unit 209 storing a maintenance operation mode switching program, etc., each unit based on this maintenance operation mode switching program and a control unit 210 for controlling the .

The battery state diagnostic unit 204 determines whether the battery 112 can be switched to the maintenance operation mode when the maintenance signal is detected. When the battery state diagnosis unit 204 determines that the battery 112 is not in a state in which it is possible to switch to the maintenance operation mode, the power supply available floor determination unit 205 moves the car 102 to the stop floor where the power transmission unit 110 (110a, 110b) is installed. 108a and 108c.

FIG. 3 is a flow chart showing processing operations of the elevator apparatus according to the embodiment of the present invention.

In step S301, a maintenance worker performs an operation to transmit a mechanical maintenance signal by a switching operation of a mechanical switch or a software maintenance signal for switching through a maintenance tool in order to switch from the normal operation mode to the maintenance operation mode. Then, a signal is transmitted from the maintenance signal transmitter 201 to the maintenance signal receiver 202 . The maintenance signal receiving section 202 that has received this signal gives an operation signal to the battery state diagnosing section 204 while using various signals possessed by the elevator state monitoring section 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 that allows switching to the maintenance operation mode. As a result, if the battery state allows switching to the maintenance operation mode (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 determines that the battery state is not such that it is possible to switch to the maintenance operation mode (NO in step S302), the car 102 can be charged to the floors where power can be supplied (stop floors 108a, 108c) for battery charging. Prepare to move to At this time, the elevator control device 107 is provided with a door closing completion detection unit (not shown) of the car 102 to detect the open/closed state of the door so that the passenger does not get on the car 102 and get trapped. .

In step S303, when the door closing completion detection unit detects that the elevator car 102 is stopped and that the door has been closed (YES in step S303), in step S304, the power supply available floor is detected. Based on the information from the elevator state monitoring unit 203, the determining unit 205 determines the nearest power-supplyable floor (stop floor 108a or stop floor 108c) using the current position data and the power-supplyable floor data.

When moving the car 102 to the floor where power can be supplied (stop floor 108a or stop floor 108c), in step S305, a normal operation mode determination unit (not shown) determines whether operation in the normal operation mode is possible. . The normal operation mode is a mode in which the elevator is operated without failure.

In step S306, if the elevator can move in the normal operation mode, the door opening/closing/broadcasting control unit 206 provides guidance to encourage people to get off the car 102. FIG. The door open/close/broadcast control unit 206 uses voice or the like to announce to the passengers to get off the car 102 immediately in order to avoid leaving the passenger in the car 102 .

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

At the floor where power can be supplied (stop floor 108a or stop floor 108c), the charging control unit 207 starts charging the battery and monitors the charging state. After that, in step S308, the charging control unit 207 determines whether the battery has reached a state of charge equal to or higher than a specified value within a predetermined time, for example, and whether or not the mode can be switched to the maintenance operation mode. As a result, if the state of charge of the battery is good (YES in step S308), switching to the maintenance operation mode is performed in step S309.

As described above, in this embodiment, when the elevator control device 107 receives the switching signal to the maintenance operation mode, it does not switch immediately. It is determined whether or not the battery 112 is in a battery state that allows switching to the maintenance operation mode. In the present embodiment, even if the battery charge amount is low and the battery state is not desirable, instead of immediately switching to the maintenance operation mode, the battery state diagnosis unit 204 determines that the battery state is not desirable. For example, the car 108 can be moved to a floor where power can be supplied (stop floor 108a or stop floor 108c), the battery 112 can be charged, and then the mode can be 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 diagnostic unit 204 is made as early as possible, if the battery state is good, it is possible to shift to the maintenance operation mode as it is.

On the other hand, if it is determined in step S303 that the door closing is not completed by the door closing completion detection unit, it is determined in step S310 whether or not switching to the maintenance operation mode by a software maintenance signal is possible. . In the case of maintenance using software signals, since the situation inside the car 102 cannot be confirmed, this processing is performed to prevent the passenger from being trapped in the car 102 if there is a passenger on board. When the door is open, the software signal is not used for maintenance. When the switching of the maintenance operation mode by the software signal is accepted in step S310 (YES in step S310), the software signal is reset in step S312, and the process ends.

On the other hand, if it is determined in step S310 that the door closing completion detection unit has detected that the door has been opened due to some other factor rather than the maintenance by the software signal, the door opening/closing/broadcast control unit 206 determines the status of the car 102 in step S311. The door closing operation is performed after the door closing guidance is performed in order to prevent the occurrence of being trapped. After that, the process returns to step S303, and completion of door closing is monitored by the above-described door closing completion detecting section.

Also, in step S305 described above, when it is determined that the normal operation mode is not set (NO in step S305), the normal operation mode determination unit determines in step S313 whether the elevator can be started. As a result, if the elevator can be started (YES in step S313), the door opening/closing/broadcast control unit 206 guides the movement of the car 102 in step S314. by driving at low speed. That is, in step S313, the normal operation mode determination unit determines that the state is not the normal operation mode, but is stopped due to some kind of trouble, and that there is no failure of an important part, and the car 102 is operated at a low speed. Move to a floor where power can be supplied by

However, if the normal operation mode determination unit determines in step S313 that the elevator cannot be started due to, for example, a failure of an important part (NO in step S313), it switches to the maintenance operation mode in step S309.

In this way, since the determination is made by the normal operation mode determination unit in step S305, the car 102 is moved to the power-supplyable floor by high-speed operation, or the car 102 is moved to the power-supplyable floor by low-speed operation, or is not moved to the power-supplyable floor. It is possible to switch to the maintenance operation mode at any time, and an effective selection can be executed according to the situation.

Furthermore, in step S308, if the state of charge does not exceed the specified value within a preset predetermined time (NO in step S308), the car 102 cannot be moved by the maintenance personnel, but normal calls can be made. Since it is in the non-response mode, charging is continued in the maintenance standby mode in step S316.

As described above, in the conventional tail cordless elevator system, when switching to the maintenance operation mode, the monitoring or charging of the battery was not particularly considered. A battery state diagnosis unit 204 is added. Therefore, instead of immediately switching to the maintenance operation mode when the battery state is unfavorable, the battery state diagnosis unit 204 determines whether the battery is good or bad. After doing this, it becomes possible to switch to the maintenance operation mode.

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

The increased mass of the tail cord in a long-stroke elevator increases the burden on the system, such as the increase in the machine axle load and the handling of cable sway. Therefore, signals are exchanged between the elevator control device 107 and the car 102 by wireless communication, and power is supplied to the equipment of the car 102. The tail cord itself can be reduced by operating the elevator apparatus while charging the elevator apparatus in a non-contact manner while the elevator apparatus is stopped.

However, although the battery state imposes restrictions in the maintenance operation mode, this problem can be solved as described above.

Further, since the door opening/closing/broadcasting control unit 206 performs the movement of the car to the power-supplyable floor, unintentional confinement can be easily prevented by utilizing the existing guidance announcement.

Further, in the present embodiment, the battery state diagnostic unit 204 for diagnosing the state of the battery mounted on the car is provided, and the battery state is confirmed by the battery state diagnostic unit 204 when switching to the maintenance operation mode. Alternatively, the battery capacity may be transmitted to the elevator state monitoring unit 203 at appropriate intervals for monitoring, and the monitoring result may be taken out and determined at the timing of switching to the maintenance operation mode.

In any case, according to the tail cordless elevator apparatus described above, the battery state diagnosis unit 204 permits or restricts switching to the maintenance operation mode, thereby preventing maintenance personnel from being confined or efficiency deterioration. can.

In addition, since the determination is made by the battery state diagnosis unit 204 in step S302, even if the state of charge of the battery 112 is insufficient, the elapsed time is 10 minutes or less with only one operation from the floor where power can be supplied, within the prescribed conditions, that is, only once. , etc., it is possible to permit switching to the maintenance operation mode on the operation floor, and convenience can be maintained. Furthermore, if the floor operated to the maintenance operation mode is not a power-supplyable floor, it is possible to switch to the maintenance operation mode after moving to the power-supplyable floor, thereby preventing a decrease in maintenance efficiency. However, if the state of battery charge is inappropriate, there is a possibility of a failure that prevents start-up depending on the state.

As described above, according to the present invention, the battery state diagnosis unit 204 determines whether or not the battery state allows switching to the maintenance operation mode when a maintenance signal is detected, and the battery state diagnosis unit 204 switches to the maintenance operation mode. A power supply available floor determination unit 205 that moves the car to a power supply available floor when it is determined that the battery state is not capable of switching to the mode, and the power supply available floor determination unit 205 determines the power storage state at the power supply available floor and performs maintenance. and a state-of-charge determination unit 208 for determining switching to the operation mode.

According to such a configuration, instead of immediately switching to the maintenance operation mode when the battery state is unfavorable, the state is determined by the battery state diagnosis unit 204, and when the battery state is unfavorable, the floor is moved to a floor where power can be supplied. It becomes possible to switch to the maintenance operation mode after supplying power to the equipment.

In addition to the configuration described above, a normal operation mode determination unit that determines whether or not the normal operation mode is set when the battery state diagnosis unit 204 determines that the battery state is not capable of switching to the maintenance operation mode is provided.

According to such a configuration, it is possible to determine whether to move the car to the floor to which power can be supplied at high speed or to move the car to the floor to which power can be supplied at low speed. can be executed.

It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the described configurations. It is also possible to replace part of the configuration of one embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

DESCRIPTION OF SYMBOLS 100... Elevator apparatus, 101... Hoistway, 102... Car, 103... Balance weight, 104... Wire rope, 105... Winding machine, 106... Sheave, 107... Elevator control device, 108, 108a, 108b, 108c... Stop Floor 109 Power line 110, 110a, 110b Power transmission unit 111 Power reception unit 112 Battery 113 Signal line 201 Maintenance signal transmission unit 202 Maintenance signal reception unit 203 Elevator state monitoring unit 204 Battery state diagnosis unit 205 Power supply available floor determination unit 206 Door opening/closing/broadcast control unit 207 Charge control unit 208 Charge state determination unit 209 Storage unit 210 Control unit

Claims (8)

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, and an arbitrary stop floor among a plurality of stop floors at which the car stops A tail cordless elevator apparatus installed in a tail cordless elevator apparatus comprising a power transmission unit that transmits power to the power reception unit and an elevator control device that controls elevator equipment,
The elevator control device includes:
a battery state diagnostic unit that diagnoses the state of the battery;
a power-supplyable floor determination unit that moves the car to a stop floor where the power transmission unit is installed according to the diagnosis of the battery state diagnosis unit;
Determining the state of charge of the battery in a state where the car is stopped at the stop floor where the power transmission unit is installed, and determining whether to switch from the normal operation mode to the maintenance operation mode based on the determination result of the state of charge of the battery. A tail cordless elevator system comprising a state-of-charge determination unit that performs In claim 1,
The tail cordless elevator apparatus according to claim 1, wherein the battery state diagnostic unit determines whether or not the state of the battery is a battery state capable of being switched to the maintenance operation mode when a maintenance signal is detected. In claim 2,
The power-supplyable floor determination unit directs the car to a stop floor where the power transmission unit is installed when the battery state diagnosis unit determines that the state of the battery is not a battery state that allows switching to the maintenance operation mode. A tail cordless elevator apparatus characterized by moving. In claim 3,
A tail cordless elevator apparatus, comprising: a door closing completion detecting section for detecting an open/closed state of a door of the car when the car is moved to a stop floor where the power transmission section is installed. In claim 2,
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 state is not a battery state that can be switched to the maintenance operation mode; A tail cordless elevator system comprising: In claim 5,
A tail cordless elevator apparatus comprising a door opening/closing/announcement control unit that prompts the passenger to get off the car when the normal operation mode determination unit determines that the elevator can be operated in the normal operation mode. In claim 3,
A tail cordless elevator apparatus comprising a charge control unit for monitoring the state of charge of the battery after the car is moved to the stop floor where the power transmission unit is installed and charging of the battery is started. . 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, and an arbitrary stop floor among a plurality of stop floors at which the car stops A control method for a tail cordless elevator apparatus provided with a power transmission unit installed in a power receiving unit for transmitting power to the power reception unit and an elevator control device for controlling elevator equipment,
The elevator control device includes:
diagnosing the state of the battery;
a step of moving the car to a stop floor where the power transmission unit is installed according to the step of diagnosing the state of the battery;
Determining the state of charge of the battery in a state where the car is stopped at the stop floor where the power transmission unit is installed, and determining whether to switch from the normal operation mode to the maintenance operation mode based on the determination result of the state of charge of the battery. A control method for a tail cordless elevator system, comprising:

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