JPH10330054A - Button inspection device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make inspection of a hall button, etc., of elevator from a monitor center located externally. SOLUTION: A button inspection device of an elevator is equipped with a monitoring computer 4 to monitor remotely the elevator from the outside, a telephone circuit 5 to connect between the elevator and computer 4, a hall button 2 installed in the elevator and having an electromagnet 10 which contacts a movable contact 8 with a stationary contact 9 when it 10 is energized, and a control board 1 which measures the time until the movable contact 8 makes contact with the stationary contact 9, wherein a signal to energize the electromagnet 10 is sent to the hall button 2 when a control means is fed with a signal from the monitoring computer 4, and when the time measured by the control board exceeds a certain value, an appropriate instruction is sent from the board 1 to the computer 4 via the telephone circuit 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for checking a hall button and the like of an elevator from an external monitoring center.

[0002]

2. Description of the Related Art Some elevators are provided with a hall button on the landing side, and when this button is pressed, a movable contact comes into contact with a fixed contact. In this type of hole button, while the movable contact is in contact with the fixed contact by pushing the hole button, these contacts are worn out and eventually stop functioning as a hole button.

[0003] Therefore, it is sometimes necessary to check whether or not the hole button has a function, and when there is a possibility that the hole button will not function, it is necessary to replace the hole button before that.

Some elevators are connected by telephone lines to a monitoring center that performs safety, maintenance and inspection from the outside.

[0005]

However, in order to check whether such a conventional hole button has a function, it is not possible to check from an external monitoring center, but to go to an elevator. I had to work. For this reason, there has been a problem that the work of visiting and checking is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to inspect an elevator hall button and the like from an external monitoring center.

[0007]

In order to achieve the above object, according to the present invention, there is provided a monitoring computer for remotely monitoring an elevator from outside, a telephone line connecting the monitoring computer and the elevator, An instruction button provided on the elevator and having an electromagnet for bringing the movable contact into contact with the fixed contact when excited, and control means for measuring a time until the movable contact comes into contact with the fixed contact, the control means comprising a monitoring computer , A signal for exciting the electromagnet is output to the instruction button, and when the time measured by the control means exceeds a certain time, the control means issues an instruction to the monitoring computer through a telephone line. I have to do that.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 4 are views showing an embodiment of an elevator button inspection device according to the present invention.

In FIG. 1, reference numeral 1 denotes a control panel for performing operation management control, speed control and the like of an elevator, and is provided in a machine room. The control panel 1 is connected to the hall button 2 provided on the landing side. When the hall button 2 is pressed to generate a hall call signal, it is output to the control panel 1 and a lighting signal is transmitted from the control panel 1 to the hall button 2. Is output. Further, an interface 3 for remote inspection is connected to the control panel 1, and this interface 3 converts an input signal into a signal for remote inspection. The interface 3 and the control panel 1 constitute control means.

On the other hand, reference numeral 4 denotes a monitoring computer for performing safety, maintenance, inspection and the like of the elevator from outside, and is provided at a monitoring center. The monitoring computer 4 and the interface 3 on the elevator side are connected by a telephone line 5. Since the telephone line 5 is exclusively for analog signals, the monitoring computer 4 and the interface 3 are provided with modems 6a and 6b for converting digital signals into analog signals. Reference numeral 7 denotes an intercom master provided at the monitoring center, and the intercom master 7 can communicate with an intercom slave in an elevator car.

As shown in FIG. 2, the hole button 2 has a contact of a manual operation automatic return type, and the contact comprises a movable contact 8 and a fixed contact 9. The movable contact 8 comes into contact with the fixed contact 9 when a current flows through the electromagnet 10 and the movable contact 8 is excited. Further, the hall button 2 has a built-in interface 11, and when a signal is output from the control panel 1 to the interface 11, a current flows through the electromagnet 10 by a switch section of the interface 11.

FIG. 3 shows a main part 12 of the hole button 2.
A button body 15 includes a compression spring 16 in a housing 14.
The coil 18 of an insulated conductor is wound around a button body 15 made of an iron core,
An electromagnet 10 is configured. A movable contact 8 is attached to a lower end of the button body 15, and a fixed contact 9 is provided to face the movable contact 8.

Next, the operation of the apparatus will be described with reference to a flowchart shown in FIG.

From the monitoring computer 4 to the hall button 2
And outputs a signal for checking, this signal is input to the interface 3 through the telephone line 5, analyzes and inspection command said signal by the interface 3 (Step S _1). Inspection command output from the interface 3, to check the control panel 1 (step S _2).

An inspection command is output from the control panel 1 to the hall button 2 to excite the electromagnet 10 (step S ₃ ). The control panel 1 sets a predetermined time t (for example, 0.5 seconds) at the same time as the excitation (step S ₄ ). By subtracting a predetermined time t by the timer unit of the control panel 1, t> 0 whether it judged (Step S _5). When t> 0, it is determined whether the movable contact 8 has come into contact with the fixed contact 9 and the input of the hole button 2 has been detected (step S ₆ ).

When the input of the hole button 2 is detected, the control panel 1 determines that the function of the hole button 2 is valid and that the function is possible (step S ₇ ). On the other hand, when the input of the hole button 2 is not detected and the predetermined time t ≦ 0, the movable contact 8 and the fixed contact 9 are worn, and it is determined that they are not possible (step S ₈ ). When it is determined to be acceptable,
The control panel 1 transmits a result indicating that the hole button 2 has a function to the monitoring computer 4, and when it is determined that the hole button 2 has no function, transmits a result indicating that the hole button 2 needs to be replaced (step S ₉ ).

In the above embodiment, the hole button is described as the instruction button. However, the button may be a destination floor button or an open / close button on the car operation panel.

[0018]

As described above, according to the present invention,
When the control means inputs a signal from the monitoring computer, the control means outputs a signal for exciting the electromagnet to the instruction button, and when the time measured by the control means exceeds a certain time, the control means instructs the monitoring computer through the telephone line. The inspection of the hall buttons and the like can be performed from an external monitoring center, and the inspection work is simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator button inspection device according to the present invention.

FIG. 2 is a block diagram of a hall button.

FIG. 3 is a sectional view of a main part of the hole button.

FIG. 4 is a flowchart showing the operation of the button inspection device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Control panel, 2 ... Hall button, 3 ... Interface, 4 ... Monitoring computer, 8 ... Movable contact, 9 ... Fixed contact, 10 ... Electromagnet.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Daisuke Furihata 3-2-1 Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa Japan Otis Elevator Co., Ltd.

Claims (1)

[Claims] 1. A monitoring computer for remotely monitoring an elevator from outside, a telephone line connecting the monitoring computer and the elevator, and an instruction provided in the elevator and having an electromagnet for bringing a movable contact into contact with a fixed contact when excited. A button, and control means for measuring a time until the movable contact contacts the fixed contact.When the control means inputs a signal from a monitoring computer, the control means outputs a signal for exciting an electromagnet to an instruction button, and If the time measured by the means exceeds a certain time, an instruction is sent from the control means to the monitoring computer through a telephone line.