JP2011195206A - Display system for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display system for an elevator enabling the users to recognize that the elevator is in the state of inspection even when the inspection performs the interruption of a main power supply.SOLUTION: This display system for an elevator includes a control unit for controllably operating the car of the elevator, a landing display which is installed at the landing of the elevator and controlled by the control unit, an interruptible power supply for supplying power to the control unit, an emergency power supply for supplying power to the landing display when the interruptible power supply is turned off, and an inspection switch for power supply interruption which is normally turned on to the interruptible power supply side and turned on to the emergency power supply side during the inspection of the elevator performed while the interruptible power supply is turned off, and which is used to switch the power supply source to the landing display from the interruptible power supply to the emergency power supply.

Description

  The present invention relates to an elevator display system.

  The elevator is regularly inspected, but passengers cannot use the elevator during the inspection. Therefore, it is necessary to let the user know that the elevator starts inspection or is under inspection.

  Conventionally, in order to display the inspection status of the elevator, an inspection tag indicating that the inspection is being performed has been placed at each floor, but the arrangement and collection of the inspection tag is a complicated operation.

  Therefore, it has been proposed to use a liquid crystal display that displays the landing position provided in the elevator hall to display the elevator inspection and the like on each floor hall in response to a command from the main controller (for example, (See Patent Document 1). This is provided with a landing position indicator connected to a control circuit that controls the operation of the elevator car, and is turned on before starting the inspection work, and the landing position is not prohibited through the control circuit. The first check switch that informs the display unit that the inspection work will start, and is turned on when the inspection work is performed, prohibits call registration via the control circuit and prohibits elevator users from entering And a second inspection switch for displaying a character indicating that the vehicle is in the inspection work state on the hall position indicator.

JP 2005-67838 A

  However, when it is necessary to turn off all the power for checking the elevator, the power supplied to the display at the hall is also cut off. In that case, there is a problem that it is not possible to display that the inspection is being performed on the display unit, which is inconvenient for the elevator user.

  Therefore, the present invention has been made in view of the above points. An elevator display system capable of displaying the status of inspection and the like for convenience of the elevator user even when it is necessary to turn off all the power. The purpose is to obtain.

  According to one aspect of the present invention, a control unit that controls the operation of an elevator car, a hall indicator that is provided at an elevator hall and is controlled by the control unit, and a normal power source that supplies power to the control unit; When the normal power supply is turned off, the emergency power supply for supplying power to the hall indicator and the emergency power supply that is always turned on to the normal power supply side and shut off the normal power supply are used for the emergency inspection. There is provided an elevator display system comprising: a power shut-off inspection switch that is turned on to the power source side and switches a power supply source for the hall indicator from the normal power source to the emergency power source. The

  The elevator display system is characterized in that the hall indicator lights up when an elevator user operates a hall call button at the hall and displays that the elevator is under inspection.

  ADVANTAGE OF THE INVENTION According to this invention, even when it is a case where the inspection accompanying the interruption | blocking of a main power supply is performed, the user of an elevator can be made to recognize that it is an inspection state, without putting a check tag in the landing of each floor.

It is a figure which shows the structure of the principal part of the display system for elevators concerning embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a main part of an elevator display system according to an embodiment of the present invention. As shown in FIG. 1, the elevator display system includes a control panel 10, a hall indicator 20, and a power shut-off inspection switch 30.

  The control panel 10 includes a main controller 11, a normal power supply 12, and an emergency power supply 13. The main control device 11 performs operation control of an elevator (not shown). The normal power supply 12 is a power supply for operating the main control device 11. The emergency power supply 13 is a backup power supply when the normal power supply 12 that is the main power supply is turned off. The emergency power supply 13 is charged by the normal power supply 12. For example, a storage battery is suitable for the emergency power supply 13. The storage battery can be used as a battery by storing electricity by charging, and can be used repeatedly. The lead acid battery is a secondary battery using lead dioxide for the positive electrode (anode plate), spongy lead for the negative electrode (cathode plate), and dilute sulfuric acid as the electrolyte. Charging is performed by moving sulfuric acid from the positive electrode into the electrolytic solution, and discharging is performed by moving sulfuric acid in the electrolytic solution to the positive electrode. A nickel-metal hydride storage battery, which is an alkaline storage battery, is a storage battery using nickel hydroxide for the anode, a hydrogen storage alloy for the cathode, and an aqueous potassium hydroxide solution (KOH aq.) For the electrolyte. It is preferable to constantly monitor the state of the storage battery and to provide an overcharge protection circuit.

  The hall display device 20 includes, for example, a display CPU 21 and a display device 22 for each floor. The hall indicator 20 is provided at the elevator hall and performs various displays for the convenience of the user. The display CPU 21 receives a signal from the main control device 11 of the control panel 10 and causes the display 22 to display predetermined display contents. The displayed contents include the nearest floor of the car, the direction of travel of the car (ascending / descending direction), and fullness. In the present embodiment, it is possible to display to the elevator user that “inspection is in progress” indicating that the inspection is being performed. The display 22 can be composed of a liquid crystal, an LED, or the like.

  The power shut-off inspection switch 30 is normally turned ON to the normal power supply 12 side, and is turned ON to the emergency power supply 13 side when the elevator is inspected by shutting off the normal power supply 12, and from the normal power supply 12 to the emergency power supply 13. The power supply source for the hall indicator 20 is switched.

  For example, the power shut-off inspection switch 30 can be provided in the control panel 10. It can also be provided in the car. It is preferable to determine the installation location in consideration of the operability of the operator who performs the elevator inspection work. When the power shut-off inspection switch 30 is provided in the car, for example, it is disposed in a switch box and locked so that the passengers of the elevator do not touch it carelessly.

  When a normal inspection switch (not shown) provided separately from the power shut-off inspection switch 30 is operated, a “under inspection” command is issued from the main control device 11 of the control panel 10 to the display CPU 21 of the hall indicator 20. Thus, “inspection” is displayed on each display 22.

  When the elevator apparatus is inspected while the normal power supply 12 is shut off, the power shut-off inspection switch 30 is turned on to the emergency power supply 13 side by the operator's operation. In this case, electric power is supplied from the emergency power supply 13 to the hall indicator 20, and “inspection” can be displayed on each indicator 22.

  Even if the emergency power supply 13 is turned on, the display CPU 21 performs control, and when the elevator user operates the landing call buttons (not shown) such as “▽” and “△” at the landing. The display 22 may display “inspection in progress”. Then, it may be displayed for a predetermined time so that the user can visually recognize that it is “inspection”, and then turned off. It is consideration for energy saving.

  According to this embodiment, even when performing inspections that involve shutting off the main power supply, it is possible to allow the elevator user to recognize that they are in the inspection state without placing inspection tags at the landings on each floor.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 10 ... Control panel 11 ... Main controller 12 ... Normal power supply 13 ... Emergency power supply 20 ... Landing indicator 21 ... Display CPU
22 ... Indicator 30 ... Power off check switch

Claims (6)

A controller for controlling the elevator car,
A hall indicator provided at a hall of the elevator and controlled by the control unit;
A normal power supply for supplying power to the control unit;
When this normal power supply is turned off, an emergency power supply for supplying power to the hall indicator,
Normally, the power supply is turned on to the normal power supply side, and is turned on to the emergency power supply side when the elevator is inspected with the normal power supply cut off. An inspection switch for switching off the power source,
An elevator display system characterized by comprising:   The elevator display system according to claim 1, wherein the hall display lights up when an elevator user operates a hall call button at the hall to indicate that the elevator is under inspection.   The elevator display system according to claim 2, wherein the hall indicator is turned off after being turned on for a predetermined time.   The elevator display system according to claim 1, wherein the hall indicator displays that the elevator is being inspected during the elevator inspection work.   The elevator display system according to any one of claims 1 to 4, wherein the emergency power source is a storage battery charged from the normal power source.   6. The elevator display system according to claim 5, wherein the storage battery is a lead storage battery or an alkaline storage battery.

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