JP2008050149A - Control device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device for an elevator in which the function of a brake release device is not impaired even if a power failure frequently occurs, by sharing a battery for the brake releasing device and a battery for an automatic landing device. <P>SOLUTION: In this control device for an elevator having an automatic landing device 7, the battery for the brake release device 6 and the battery for the automatic landing device 7 are shared as a battery 4. Normally, the common battery 4 is charged to a full charge while always checking the residual amount of the battery. In power failure, a brake release power amount for releasing the brake 2 for a predetermined time is first secured, and only when there is room in the residual amount of the battery, and the opening/closing of a door by a door motor 3 and the nearest floor landing operation by a hoist 1 are allowed. When the opening/closing of the door or the nearest floor landing operation is performed, the consumed power amount is deducted from the residual amount of the battery, and the details and the number of times of the automatic landing operation are limited according to the residual amount of the battery obtained by the result of the deduction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator control device, and more particularly to control means for sharing a battery of a brake release device and a battery of an automatic landing device.

  The brake release device is a hoisting machine when the car stops in an emergency between the floors due to a power failure or an elevator control system failure and the passengers are trapped until the car reaches the light load floor. This is a device that forcibly releases the brake manually, and is backed up by a battery to electrically release the brake even during a power failure.

  The automatic landing device is a device that automatically makes a landing on the nearest floor even when the car stops in an emergency between the floors due to a power failure and the passengers are trapped, and includes a battery as a power source.

  Conventionally, from the viewpoint of ensuring safety, the battery of the brake release device and the battery of the automatic landing device have been installed separately.

  An emergency power supply unit that consolidates the battery of the brake release device and the light load battery of the blackout light and intercom, sets a time limit on the power supply to the blackout light and intercom, and prevents the entire power of the battery from being consumed It has been proposed (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2004-123352 (pages 2 to 3 and FIGS. 1 and 2)

  With reference to the control method of Patent Document 1, when considering that the brake release device battery and the automatic landing device battery are shared, the automatic landing operation is performed every time a power failure occurs. If it occurs frequently, the battery will not be charged in time, and all the battery will be consumed by the automatic landing device.

  As a result, when the battery is shared, it is assumed that the brake release device cannot be used, and the function is not performed in an emergency even though it is a brake release device for rescue passengers in an emergency. Therefore, when power failures occur frequently and charging may not be in time, the battery of the brake release device and the battery of the automatic landing device cannot be shared.

  The subject of this invention is providing the elevator control apparatus which does not impair the function of a brake release apparatus even if the battery of a brake release apparatus and the battery of an automatic landing apparatus are shared, and a power failure occurs frequently.

  In order to solve the above-described problems, the present invention is directed to an elevator control device that shares the battery of the brake release device and the battery of the automatic landing device. Charging the shared battery and, in the event of a power failure, first secure the brake opening electric energy to release the brake for a predetermined time, and allow the door opening / closing by the door motor and the nearest floor landing operation by the hoisting machine only when the remaining battery capacity is sufficient When the door opens and closes or when the nearest floor landing operation is performed, an automatic landing device is provided that subtracts the amount of power consumption from the remaining battery level and limits the contents and frequency of automatic landing operations according to the remaining battery level. An elevator control device is proposed.

  More specifically, in an elevator controller that shares the battery of the brake release device and the battery of the automatic landing device, it is normally checked whether the remaining battery level is fully charged, and if the remaining battery level is fully charged, For example, if the remaining battery level remains unchanged and the remaining battery level is not fully charged, the amount of charge current x charging time is added to the remaining battery level and power is received until the fully charged state. If the battery level is less than the brake opening + door opening power amount, the automatic landing operation at the time of power failure is terminated, the battery remaining amount is the brake opening + door opening power amount or more, and the brake opening + door If it is less than the opening + nearest floor landing operation electric energy, check whether the car is in the door zone, if it is in the door zone, subtract the door opening electric energy from the remaining battery level, open and close the door, If it is not within the zone, terminate the automatic landing operation at the time of power failure, check the remaining battery level, and if the brake release + door opening power amount or more, check if the car is in the door zone, if in the door zone, Subtract the door opening power from the remaining battery level, open and close the door, terminate the automatic landing operation during a power failure, and if not within the door zone, subtract the nearest floor landing power from the remaining battery level We propose an elevator control device equipped with an automatic landing operation device that performs landing operation to the floor, subtracts the door opening electric energy from the remaining battery level, opens and closes the door, and terminates automatic landing operation at the time of power failure.

  According to the present invention, the battery of the brake release device and the battery of the automatic landing device are shared, and even if power failures occur frequently, the amount of electric power for releasing the brake for a predetermined time can be saved in the battery. Will not be damaged.

  Next, an embodiment of the elevator control device according to the present invention will be described with reference to FIGS.

  FIG. 1 is a block diagram showing a system configuration of an embodiment of an elevator control apparatus according to the present invention.

  The elevator control device according to the present embodiment includes a battery 4, a charging circuit 5 that charges the battery 4 with electric power from the power system, a brake release device 6, and an automatic landing device 7. The brake releasing device 6 and the automatic landing device 7 share the battery 4 at the time of a power failure.

  The brake release device 6 is normally supplied with electric power from the electric power system, and is supplied with electric power from the battery 4 in the event of a power failure. The brake release device 6 releases the brake 2 for rescue of passengers in the event of a failure or a power failure. Use the weight imbalance between the weight and the counterweight to move the car to the nearest floor. The automatic landing device 7 is normally supplied with power from the power system, and is supplied with power from the battery 4 in the event of a power failure, and controls the hoist 1, brake 2 and door motor 3, and the floor specified by the passenger Raise and lower the car to the door and open and close the door when it arrives.

  Since it is difficult to manage the actual remaining battery power, in this embodiment, the power amount of charging current x charging time is added during normal operation. Even if it is a distance, it is regarded as one floor, and a predetermined amount of power is subtracted to manage the remaining battery level.

  FIG. 2 is a flowchart showing a control procedure of normal automatic landing operation in the elevator control device of FIG.

  At normal time, the automatic landing apparatus 7 checks whether the remaining battery level is fully charged (101). If the remaining battery level is fully charged (102), the remaining battery level is left as it is, and the remaining battery level is full. If it is not in the charging state (103), the power amount of charging current × charging time is added to the remaining battery level (104), and the steps 101 to 104 are repeated until the full charging state.

  FIG. 3 is a flowchart showing a control procedure of automatic landing operation at the time of a power failure in the elevator control device of FIG.

  At the time of a power failure, the automatic landing device 7 checks the remaining battery level (110). If the remaining battery level is less than the brake opening + door opening power (112), there is no power to perform the basic operation of brake opening + door opening, so the automatic landing operation at the time of power outage is terminated and manual rescue is awaited. I will tell the passenger.

  If the remaining battery level is equal to or greater than the brake opening + door opening electric energy and less than the brake opening + door opening + the nearest floor landing operation electric energy (113), it is confirmed whether the car is in the door zone (114). If it is in the door zone (115), the door opening electric energy is subtracted from the remaining battery level (116), the door is opened and closed (117), and the automatic landing operation at the time of power failure is terminated. If it is not within the door zone (118), it is determined that automatic landing operation is impossible, the automatic landing operation at the time of power failure is terminated, and manual rescue is waited for, and the passenger is guided.

  If the remaining battery level (111) is greater than the brake release + door release + the nearest floor landing power consumption (119), it is checked whether the car is in the door zone (120). If within the door zone (121), the door opening electric energy is subtracted from the remaining battery level (116), the door is opened and closed (117), and the automatic landing operation at the time of power failure is terminated. If not within the door zone (122), the nearest floor landing operation electric energy is subtracted from the remaining battery level (123), the landing operation is performed to the nearest floor (124), and the door opening electric energy is subtracted from the remaining battery level ( 116), the door is opened and closed (117), and the automatic landing operation at the time of power failure is terminated.

  In either case, the battery 4 can save the amount of power required to release the brake 2 for at least a predetermined time. Therefore, the brake release device 6 and the battery 4 of the automatic landing device 7 are shared, and the brake is released even if power failures occur frequently. The function of the device 6 is not impaired.

  In this embodiment, the remaining battery level is managed by calculation. However, even if the actual remaining battery level is monitored and the automatic landing operation is restricted so that the amount of power required to release the brake for a predetermined time is retained in the battery. The same effects as in this embodiment can be obtained.

It is a block diagram which shows the system | strain structure of one Example of the elevator control apparatus by this invention. It is a flowchart which shows the control procedure of the automatic landing operation in the elevator control apparatus of FIG. It is a flowchart which shows the control procedure of the automatic landing operation at the time of the power failure in the elevator control apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoisting machine 2 Brake 3 Door motor 4 Battery 5 Charging circuit 6 Brake release device 7 Automatic landing device

Claims (2)

In the elevator control device that shares the brake release device battery and the automatic landing device battery,
During normal times, the shared battery is charged toward full charge while constantly checking the remaining battery level, and when there is a power outage, the brake opening electric energy to release the brake for a predetermined time is secured first, and there is room in the remaining battery level Only the door opening / closing by the door motor or the nearest floor landing operation by the hoisting machine is allowed, and when the door opening / closing or the nearest floor landing operation is performed, the power consumption is subtracted from the remaining battery level, and the subtraction result shows the remaining battery level. An elevator control device comprising an automatic landing device for limiting the contents and frequency of automatic landing operation. In the elevator control device that shares the brake release device battery and the automatic landing device battery,
In normal operation, check whether the remaining battery level is fully charged. If the remaining battery level is fully charged, leave the remaining battery level. If the remaining battery level is not fully charged, charge current x power of charging time. Add the amount to the battery level and continue to receive power until fully charged,
Check the remaining battery level at the time of a power failure, and if the remaining battery level is less than the brake opening + door opening power amount, the automatic landing operation at the time of the power failure is terminated, the remaining battery level is equal to or more than the brake opening + door opening power amount, and , Brake release + door opening + if the floor driving power is less than the nearest floor, check if the car is in the door zone, if it is in the door zone, subtract the door opening power from the battery level, open and close the door, If it is not in the door zone, terminate the automatic landing operation at the time of power failure, check the remaining battery level, and if it is greater than the brake release + door opening power, check if the car is in the door zone, if in the door zone, Subtract the door opening energy from the remaining battery level, open and close the door, terminate the automatic landing operation during a power failure, and if not within the door zone, subtract the nearest floor landing energy from the remaining battery level Until landed operated, subtracts the door opening amount of power from the battery remaining amount, opening and closing the door, the elevator control apparatus characterized by having an automatic landing operation device for terminating automatic landing operation during power outages.

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