JPH05105342A - Indicator device for elevator - Google Patents

Abstract

PURPOSE:To provide an elevator indicator checking device allowing an indicator to be checked in a machine room so as to heighten maintenance effect. CONSTITUTION:Indicator lamps 14 provided appropriately in an elevator cage and at a hall is driven/lighted on the basis of lighting commands inputted into a lamp driver 20. The output end potential of the lamp driver 20 is detected by a potential detecting circuit 21, and the consistency between the lighting commands and the output end potential of the lamp driver 20 is checked by a comparing circuit 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator display device capable of checking the lighting drive of a display lamp.

[0002]

2. Description of the Related Art The configuration of a conventional display device system for an elevator will be described.

First, the initial configuration of the elevator is shown in FIG. 3, and the description will proceed accordingly. Elevator's basket 1
Is connected to the counter weight 3 via the wire rope 2 and is rotated by the rotational force of the motor 5 by utilizing the frictional force between the hoisting machine sheave 4 and the rope 2. Moves up and down by sheave 4. The operation of the floor selector (hereinafter, selector) 6 used in the initial elevator system will be described as one of the methods for detecting the car position. The selector 6 has a structure in which a tape wheel 8 is rotated by a steel tape (hereinafter, selector tape) 7 connecting the car 1 and the counter weight 3.

When the car 1 moves up and down, the selector tape 7 moves, and the synchronous moving base 9 inside the selector 6 is passed through the tape car.
Has a structure that goes up and down on a fixed scale. In other words, the movement of the car can be monitored in the machine room.

The method for displaying the car position is as follows. The movable contact 10 provided on the synchronous moving base is a fixed contact 11 provided by the number of floors.
When it touches, the electric wire 12 connected to the fixed contact element applies a voltage to the floor display lamp 14 inside the display 13 provided in each floor and the car to light it.

In the case of such a lighting system, it is not possible to check the lighting state of the display lamp, but it is possible to check in the machine room whether or not a lighting command is issued to the lamp.

In recent years, as shown in FIG. 4, a floor selector
Instead of, the pulse of the pulse generator 15 provided on the motor axis is counted, the car position is calculated, and the floor display is displayed on the control panel 16.
It is common to use a lamp driver 17 to display a voltage by applying a voltage to the lamp, but the method for checking the lighting status is the same, and it is possible to check the presence or absence of display output in the machine room. .. However, the only way to check if the lamps were on correctly was to visually check all the display lamps on each floor and in the car.

In the check in the machine room, if the display output is correctly output and there is no basket or each floor is not displayed, it is determined that the wiring is defective or the lamp is defective. In this way, it was a system that can easily find defective points,
Recently, as shown in Fig. 5, the serial transmission method is adopted for the purpose of shortening the construction period by reducing the number of wires and improving the reliability, and the display data is provided in the basket or on each floor. -Transmission to station 18, converting transmission data at each station, and outputting a display command to the display.

[0009]

However, in the above-described serial transmission system, it is impossible to confirm the output of the display in the machine room, and all confirmation is performed on each floor and in the car. This means that it is not possible to determine whether there is an abnormality in the transmission data, the wiring of the display unit, the lamp, or the lamp driver. Leading to trouble.

Therefore, an object of the present invention is to provide a display device check device for an elevator, which enables a display device to be checked in a machine room and can improve a maintenance effect.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a lamp for a display, which is appropriately installed in a car of an elevator and in a landing, and a lighting drive for each lamp based on a lighting command. A lamp driver, and a potential detecting means for detecting the output terminal potential of the lamp driver,
The lighting command and the potential detection signal from the potential detection means are input, the consistency between the lighting command and the potential detection signal is checked, and a comparison circuit for determining an abnormality of the lamp driver or the indicator lamp is provided. An indicator device for an elevator is provided.

[0012]

[Function] The indicator lamp, which is appropriately provided in the elevator car and in the hall, is driven to drive based on the lighting command input to the lamp driver, and the potential at the output end of the lamp driver is detected by the potential detection circuit. By checking the matching between the lighting command and the output end potential of the lamp driver by the comparison circuit, it is possible to properly understand the abnormal situation of the lamp driver or the lamp for the display.

[0013]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a display device of the present invention, and FIG. 2 is a diagram showing a system outline of the display device of the present invention.

1 and 2, the display device includes a lamp driver 20 for driving a lamp 14 in response to a lighting command from a transmission station 19 for transmitting and receiving various signals of a lighting command signal, and a lamp driver 20. Output terminal (lamp 14
The potential detection circuit 21 for detecting the potential of the side terminal) and the transmission station 19 are provided to check the consistency between the potential detection signal from the potential detection circuit 21 and the lighting command signal from the transmission station 19. It is composed of a comparison circuit 22. Next, the operation of the comparison circuit 22 of the display device will be described with reference to Table 1.

[0015]

[Table 1] As shown in Table 1, there are four combinations of the potential detection signal from the potential detection circuit 21 input to the comparison circuit 22 and the lighting command signal input from the transmission station 19.

Here, in Table 1, the case where the lighting command signal is input to the comparison circuit 22 is set to "1", and the case where it is not input is set to "0". Further, in the potential detection circuit 21, when the potential of the output terminal of the lamp driver 20 is high, it is "1", and when it is low, it is "0". First, the case where the lamp 14 normally operates based on the lighting command signal from the transmission station 19 will be described.

When a lighting command signal is input to the lamp driver 20, the internal circuit of the lamp driver 20 becomes conductive and the lamp driver 20
Voltage is applied to 14 and lamp 14 lights up. At this time, the output end potential of the lamp driver 20 becomes zero, and the potential detection signal of level "0" is transmitted from the potential detection circuit 21 to the comparison circuit 22. That is, the comparison circuit 22 determines that the display is operating normally based on the data of the lighting command signal level 1 and the potential detection signal level 0. Conversely, the lamp driver 20
When the lighting command signal is not input to the lamp driver 20, the potential of the output terminal of the lamp driver 20 is equal to the power supply potential, so the level of the potential detection signal is 1, and the comparison circuit 22 indicates that the lighting command signal level 0 and the potential. Since the detection signal level 1 is input, it is similarly judged that the display is operating normally. Next, the operation when the lighting operation of the lamp 14 of the display is abnormal will be described.

First, when the lighting command signal is input to the lamp driver 20 but the output terminal potential of the lamp driver 20 is high, that is, the lighting command signal level 1 is supplied to the comparison circuit 22.
When the electric potential detection signal level 1 is input, it is determined that the lamp driver 20 is defective, and the maintenance staff is informed accordingly.

In addition, when the lighting command signal is not input to the lamp driver 20 and the potential of the output end of the lamp driver 20 is low, that is, the comparison circuit indicates the lighting command signal level 0.
When the potential detection signal level 0 is input, it is determined that the lamp driver 20 is defective or the lamp 14 is broken. The maintenance staff who received this judgment result,
The lamp 14 is actually inspected, and if it is lit, it can be determined that the lamp driver 20 is defective, and if it is not lit, it can be determined that the lamp is broken.

The judgment result of the comparison circuit 22 as described above is converted into transmission data at the transmission station 19 and sent to the control panel (not shown) in the machine room, where it is transmitted to the machine room. It shows which indicator on the floor hall or car is abnormal.

[0021]

As described above, according to the present invention, it is possible to check the indicators provided on each floor of the elevator and the car in the machine room, and to improve the maintenance efficiency. Can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a display device of an elevator which is an embodiment of the present invention.

FIG. 2 is a diagram showing an outline of a system using a display device of an elevator which is an embodiment of the present invention.

FIG. 3 is a diagram showing a system configuration of a display device of a conventional elevator.

FIG. 4 is a diagram showing a system configuration of a display device of a conventional elevator.

FIG. 5 is a diagram showing a system configuration of a display device of a conventional elevator.

[Explanation of symbols]

 1 ... Basket 13 ... Indicator 14 ... Lamp 20 ... Lamp driver 21 ... Potential detection circuit 22 ... Comparison circuit

Claims (1)

[Claims] 1. A lamp for an indicator, which is appropriately provided in a car of an elevator and in a landing, a lamp driver for driving the lamp to light based on a lighting command, and a potential for detecting an output end potential of the lamp driver. Detection means,
The lighting command and the potential detection signal from the potential detection means are input, the consistency of the lighting command and the potential detection signal is checked, and a comparison circuit for determining an abnormality of the lamp driver or the indicator lamp is provided. Elevator display device.