JPS63282076A - Controller for 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 control device, and more particularly to an improvement in an electrical signal transmission system between an elevator car and an elevator machine room.

[Prior Art] Conventional elevators use control cables for signal transmission between the machine room and the car, and for power supply from the machine room to the car. However, control cables may not be usable for outdoor observation elevators, high-lift oblique elevators, etc.

Therefore, several methods have been proposed and put into practical use that do not use control cables during signal transmission or power supply. For example, (1) A battery is loaded on the car, and the on-board battery is used to power the lighting inside the car and the driving device for opening and closing the door, and inductive wireless is used for signal transmission between the machine room and the car. Method used.

(2) There is a method of supplying power to the car and transmitting signals using a trolley wire.

[Problems to be Solved by the Invention] However, the conventional method has the following problems. For example, in method (1), the battery is heavy, requires time and effort to maintain, and has a short lifespan. It is also more expensive. or,
Inductive radio is practical for transmitting signals such as call calls, but it is unreliable when it comes to transmitting safety circuit signals such as emergency stop signals in the event of an abnormality or detecting that a door is open. In addition, in recent years, monitor cameras (IT
V) is often provided inside the car, but it is not possible to transmit image signals using the 8-conductor wireless system.

Regarding method (2), since the number of trolley wires required depends on the number of stopped cars, when the number of stopped cars is small, each stop signal can be sent out using a small number of trolleys, which is practical. However, as the number of stops increases, it becomes physically difficult to install the trolley wire, making it impossible to supply power and transmit signals using the trolley wire.

This invention was made to solve the above-mentioned problems, and it performs power transmission and signal transmission, which requires a large number of signal lines, through separate transmission systems, thereby improving the reliability and quality of signal transmission. It is an object of the present invention to provide an elevator control device that can increase the variety and reduce the number of trolley wires.

[Means for Solving the Problems] The elevator control device according to the present invention uses a trolley wire to only supply power from the elevator machine room to the elevator head and to transmit safety circuit signals from the elevator head to the elevator machine room. , operating status signals are sent and received between the car and the machine room via a wireless device.

[Function] According to the present invention, only the power supply and safety circuit signal transmission are performed using the trolley wire, so the number of trolley wires can be reduced regardless of the number of stops, and the signal transmission and reception between the car and the machine room can be reduced. Since this is done via wireless equipment, a wide variety of information can be exchanged.

[Embodiment] FIG. 1 is an overall configuration diagram of a diagonal elevator using an embodiment of the present invention. In the figure, (1) is a basket, (2)
is the counterweight, (3) is the hoistway, (4) is the car rail, (5) is the counterweight rail, (6) is the rope, (7
) is a sheave, (8) and (9) are warping wheels, (10) is a guide roller on the car side, (11) is a guide roller on the counterweight side, (12) is a trolley wire, (13) is a collector, ( 1
4) and (15) are a car side antenna and a machine room antenna, (16) is a machine room control panel, and (17) is a car control I panel.

FIG. 2 is a configuration diagram of the signal transmission system inside the elevator shaft (1) and on the side of the elevator machine room (IA). In the figure, (12a) is a power trolley wire that supplies power from the elevator machine room (IA) to the elevator (1), and the power is supplied to the power supply in the machine room (IA) from the power supply (13J to the transformer (14)). Trolley wire (12a
) is sent to. (12b) and (12b) are safety circuit trolley wires, which input the safety signal outputted via the safety circuit switch (12c) on the car (1) side via the safety circuit trolley (12d); The safety signal is sent to the machine room control panel (16).

In the elevator (1), (17) outputs a door opening/closing command to the door opening/closing electric motor (26) based on a call registration signal input from the elevator control panel (25), and also outputs a door opening/closing command to the door opening/closing electric motor (26). A microprocessor that generates a door closing completion signal to the cage, (27) a microphone that sends out voice messages inside the cage, (27) a speaker that sends voice messages to the hakato (1), (29) a speaker that sends voice messages to the hakato (1). (14) is the door closing completion signal;
The audio and image information inside the car is transmitted to the machine room (IA) via radio waves.
This is a car side antenna that receives audio information from the machine room (IA) side. Note that (22) steps down the power supplied from the power trolley wire (12a) and supplies it to the microprocessor (17) and the car lighting lamp (23).
).

On the other hand, in the elevator machine room (IA), (15) is the machine room side antenna that exchanges audio or image information between the elevator and (1), and (16) is the machine room side antenna (
A microprocessor (machine room control panel) receives the door closing completion signal received by the hoist drive motor (20) (21), and controls the hoist drive motor (20).
It is a monitoring board for 1), and a microphone (21a)
, speaker (21b), basket monitor TV (21c)
It is equipped with

Next, the operation of this embodiment will be explained based on the above configuration. Electric power is supplied to electrical equipment in the elevator car (1), such as car interior lighting (23), and to the microprocessor (17) for car call registration control and door opening/closing control from the elevator machine room (IA) through the hoistway. The power is supplied from the power co-supply trolley wire (12a). The detection signal of the door closed detection switch (12c), which detects that the elevator car door is closed, is transmitted through the safety circuit trolley wire (12b), which is also laid through the hoistway to the elevator machine room (IA).

(12b) to the machine room control panel (IA) of the machine room (IA).
16).

Further, when the destination in the car (1) is registered on the car operation panel (5), the microprocessor (17) calculates a door closing command and drives the door opening/closing electric motor (25) to close the door.

When the door closes, a part of the door closed detection switch (24) closes,
A door closing completion signal is sent to the machine room control≦(16) by the trolley (12b). On the other hand, the microprocessor (17) sends the destination floor signal to the car-side antenna (14), and the car-side antenna (14) transmits it to the machine room antenna (15) on a radio wave of 50G)Iz here. At the same time, this radio wave also carries the audio signal from the microphone (27) of the in-car intercom and the video signal from the television camera (29). In the machine room (IA), this radio wave is received by the machine room antenna (15) and sent to the control panel (16), where it sends a destination floor signal as well as audio and
The video signal is sent to the monitoring board (21) and then sent to the speaker (21b).
Activate the monitor TV (21c). On the other hand, the microphone (2
The audio signal from 1a) (this includes BGM signals) and the car position signal from the machine room control panel (16) are carried on radio waves by the machine room antenna (15), and then sent to the car side antenna ( 14), and the microprocessor (17) lights up the indicator on the car operation panel (26).

In addition, in the event that the motor suddenly stops inside the car, the safety circuit switch (12c) is activated, and the machine room control panel (16) suddenly stops the electric motor (20) via the trolley (13).

[Effects of the Invention] As described above, in the present invention, only the signals for power supply and safety circuits are sent by the trolley, so only a few trolleys are required, and other signals are sent by radio waves, so it is reliable even without using cables. A system with high performance can be configured.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of an elevator system using an elevator control device according to an embodiment of the present invention, and FIG. 2 is an overall configuration diagram of the elevator control device. In the figure, (1) is the elevator, (1^) is the elevator machine room, (12a) is the power supply trolley wire, (
12b), (12b) is the safety circuit trolley wire, (
14) is the car side antenna, (15) is the machine room antenna.

Claims (1)

[Claims] A plurality of trolley wires are laid from the elevator machine room along the elevator hoistway, and these trolley wires supply power from the elevator machine room to the electrical equipment in the elevator car, and also close the door from the elevator car to the elevator machine room. An elevator control device characterized in that it sends out a confirmation signal and also sends and receives an operating status message signal between an elevator car and an elevator machine room via a wireless device.