JPS63123781A - Inspection device for pilot lamp of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elevator indicator light inspection device that automatically inspects elevator hall indicator lights.

[Conventional technology]

Indicator lights are installed at the landings of each elevator floor to display the running position of the elevator car, and these indicator lights are regularly inspected to ensure that they are always displaying the correct information. .

An example of a device for inspecting the display lights of a boarding hall is Utility Model Application No. 60-129962 filed by the same applicant.

This inspection device detects the current flowing through the indicator light when passing through the landing on each floor, compares this current with a predetermined reference value, and determines whether the current flowing through the indicator light is within the specified range. This is a method of displaying on a display device.

[Problem that the invention seeks to solve]

In the conventional method described above, a reference value is provided to determine whether or not the system is normal. However, because the number of indicator lights in elevators differs depending on the number of floors, and the capacity of indicator lights varies, etc., it is necessary to adjust the standard values on-site to optimize each elevator. There was a problem.

Further, even if the reference value is adjusted to the optimum value, when the power supply voltage fluctuates, the current value flowing through the indicator lamp also fluctuates in proportion to the fluctuation, resulting in a problem that the accuracy of the determination deteriorates.

SUMMARY OF THE INVENTION An object of the present invention is to provide an indicator light inspection device that automatically sets the reference value and makes highly accurate judgments.

[Means for solving interlayer points]

To achieve this objective, a computer is used to automatically store the current values when passing through the landings on each floor in the computer's random access memory, calculate the maximum value of these, and then calculate the indicator light from this maximum value. Calculate the current signal value that flows when one wire is disconnected, compare this calculated value with the current signal value corresponding to each floor, and when the latter current signal value is small, it is determined that the indicator light is disconnected, and one display device is displayed. This is achieved by displaying.

[Effect]

By installing this device in an elevator, the reference value is automatically set, so no adjustment is required and the quality of the indicator light can be determined with high accuracy.

〔Example〕

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

FIG. 2 shows the overall electrical circuit diagram of the invention. It is assumed that the elevator will be in service with NM floors.

In the figure, U and V are AC power terminals, S~SN are segments of the floor selector for the 1st to N floors, and F is the finger of the floor selector, which has a structure that moves in synchronization with the elevator car. It has become. In other words, when the car is stopped on the first floor, the finger is in contact with segment Sl, but
As the car rises, finger F contacts 82-SN.

H1 to HN indicate indicator lights that light up when the car is located on the 1st floor to the Nth floor, that is, segments SL to SN come into contact with finger F. There are N indicator lights for each, and when the car is on the 1st floor, When stopped, indicator lights Lll and L12
~ When LIN lights up and stops at NM, the indicator light L
Nl, LNz~LNN lights up. Note that the first suffix indicates the location of the car, and the second suffix indicates the floor of the landing.

CT is connected to the wire of finger F, and segments 81~
A current detector detects the current flowing when SN comes into contact with finger F. The engineer reads the current signal value of the current detector CT using a computer, processes it, and outputs one indicator light Lzz to LNN.
When the wire is disconnected, the floor of that car is displayed on the display.

Figure 3 shows the overall configuration of the computer.
The current signal value detected by the current detector CT is sent to the current signal value A(1) to A for each floor via the interface E1.
(N) is stored in random access memory (RAM) TL. Tz is a read-only memory (ROM) in which a program for calculation is stored in advance, processed by a central processing unit (CPU) Ta, and its output is displayed on one display device via an interface device 2.

Next, the operation of this apparatus will be explained using the flowchart shown in FIG.

When the computer is started (PL), the data in the random access memory Tz is initialized (P2). P3) to operate the car, current signal values A(1) to A(N
) (abbreviated as A(i)) is a random access memory T1
(P4). Current signal value A (i) of all jump beds
After storing (P6), the maximum value AMAX of the current signal value A(i) is calculated (P7). If one of the indicator lights L11 to LNN is disconnected, the current signal value decreases by A(i)/N, so the reference value AP is changed to AMAX(N-1)/NU,
:, and calculate the standard value AP (P8). Compare the reference value AP with the current signal value A(i) of each floor (P9),
If the reference value AP is large, it will not be displayed on the display device (PIO)
, check pH on all floors), end (PL 2)
.

Note that the reference value AP is the maximum value AMA, and X is a constant (N-1).
/N, but there is no need to fix it to (N-1)/H. For example, it may be slightly larger than this. Also, if you want to detect that two indicator lights are disconnected, then (N-1)/H is required. 2)
/N, and can be changed flexibly.

Further, it is of course possible to print using a printer instead of the display device. Furthermore, the computer used for controlling the elevator can also be used as the computer of this device.

Therefore, by having maintenance personnel inspect the indicator bag [D], it is possible to confirm which floor's indicator light is broken.

〔Effect of the invention〕

According to this embodiment, the indicator lights at the elevator landing can be automatically inspected while the car is in operation, so the inspection time for the indicator lights can be shortened, and as a result, the maintenance time can be significantly reduced. It has the effect of reducing

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing the operation of the inspection device according to the present invention, FIG. 2 is an overall electrical circuit diagram, and FIG. 3 is an overall configuration diagram of a computer. CT...Current detection device, D...Display device, Lrz~
LNN early 1 day

Claims (1)

[Claims] 1. In an elevator indicator light that displays the floor position of a car at a landing, a means for detecting a current flowing through the indicator light and a computer are provided, and means for storing the current signal value in a random access memory of the computer; , means for determining the maximum value of this current signal value, means for determining a reference value by multiplying this maximum value by a predetermined constant, and comparing this reference value and the current signal value, and when the reference value is large, this floor is determined. 1. An elevator indicator light inspection device characterized by being provided with a display device that displays.