JP2567524B2 - Elevator signal transmission device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal transmission device for an elevator and relates to automation of floor setting by a microcomputer provided on each floor.

[0002]

2. Description of the Related Art The structure of a conventional example will be described with reference to FIGS. 10 and 11 are a block diagram and an electric circuit diagram showing a conventional elevator signal transmission device disclosed in, for example, Japanese Patent Laid-Open No. 1-226685.

Referring to FIG. 10, a conventional elevator signal transmission device includes a microcomputer (1) provided in a control panel and incorporating several tens of ports, a signal bus (2) provided at a landing on each floor, and a GND. The landing microcomputer (5) connected to the microcomputer (1) via the line (3) and the signal branch line (4), the indicator (6) connected to the landing microcomputer (5), and the landing microcomputer (5) A landing call registration light (7) that is connected and displays the registration of landing calls (the distinction between upward and downward calls is omitted)
And a hall call button (8) connected to the hall microcomputer (5) for registering a hall call (the distinction between upward and downward calls is omitted), and a signal serial transmission interface (9) provided in the control panel , The car microcomputer (13) connected to the signal serial transmission interface (9) through the signal bus bar (10) and the GND line (11) provided in the car (12), and the car microcomputer (13) Indicator 14 and a car operation panel 15 which is connected to the car microcomputer 13 and includes a car destination floor registration button, a registration light, a door opening / closing button and the like.

FIG. 11 is a detailed view of a portion A surrounded by a dotted line in FIG. 10, in which the landing microcomputer (5) is provided with a transmission terminal line (16),
It is connected to the signal bus line (2) and the GND line (3) by transmission transistors (17) and (18). A rotary SW (19) is connected to the landing microcomputer (5).

Next, the operation of the above-mentioned conventional example will be described with reference to FIG. FIG. 12 is a waveform diagram showing signals transmitted and received by a conventional elevator signal transmission device.

In FIG. 12, the signal transmitted / received is serial data in asynchronous transmission which is composed of a start bit B0, data (B1 to B8) and a stop bit B9.

First, the microcomputer (1) of the control panel transmits,
The case where the landing microcomputer (5) receives the data will be described. Each address is assigned to the rotary SW (1
It is set by 9) and stored in the memory. For example, the address of the ground floor microcomputer (5) is "01" in hexadecimal, and the address of the control panel microcomputer (1) is 16
The decimal number is "10".

The microcomputer (1) transmits the address of the landing microcomputer (5). That is, the microcomputer (1) sends data "01" (B1 to B7 is low level, B8 is high level) to the signal bus (2) and then data in the format shown in FIG. On the other hand, the platform microcomputer (5) on each floor receives the signal "01", but the software (S / W) is set up so that it starts receiving data only when its own address and the received address match. Only the ground floor microcomputer (5) on the first floor starts receiving data.

Next, a case where the first floor hall microcomputer (5) transmits and the control panel microcomputer (1) receives is explained.

The landing microcomputer (5) on the first floor sends the address "10" of the microcomputer (1) of the control panel from the transmission terminal line (16) to the signal bus line (2) via the signal branch line (4). After that, the data is transmitted. The same applies when the microcomputer (1) of the control panel transmits / receives to / from another landing microcomputer (5).

Further, transmission / reception between the microcomputer (1) of the control panel and the basket microcomputer (13) is carried out through the signal serial transmission interface (9), and similarly, the signal bus (10).
Transmission and reception is performed via.

That is, the hall microcomputer (5) on each floor needs to set an address, and the hall microcomputer on each floor
In (5), for example, an address setting circuit and parts such as the rotary SW (19) shown in FIG. 11 are provided. By setting an address for each hall microcomputer (5) on each floor by this rotary SW (19), communication with the microcomputer (1) of the control panel becomes possible.

[0013]

In the conventional elevator signal transmission device as described above, it is necessary to set an address in the landing microcomputer (5) on each floor. This address setting is set at the time of factory shipment or in the elevator. This is done at the time of installation, which not only complicates the work, but also causes a problem of incorrect setting.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to obtain a signal transmission device for an elevator which can automatically set an address of a landing microcomputer on each floor.

[0015]

The elevator signal transmission device according to the present invention comprises the following means. [1] A hall microcomputer installed on the hall on each floor to control equipment and signal transmission at the hall. [2] Detecting means provided on each floor corresponding to the landing microcomputer and detecting the approaching movement of the car. [3] Transmission control means provided on the control panel to control signal transmission to and from the equipment at the landing and the basket. [4] In an operation mode in which only the landing microcomputer provided on the control panel, which controls the operation of the basket, and in which the detection means operates, can communicate with the transmission control means,
Elevator control means for setting the address of the landing microcomputer.

[0016]

In the present invention, the hall microcomputer and the serial signal transmission are controlled by the hall microcomputer provided at the hall on each floor. Further, the approaching movement of the car is detected by the detection means provided on each floor corresponding to the landing microcomputer. Further, signal transmission with the equipment at the landing and the basket is controlled by the transmission control means provided on the control panel. The elevator control means provided on the control panel controls the operation of the car, and only the landing point microcomputer on which the detection means operates can communicate with the transmission control means in the operation mode. The address of the microcomputer is set.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the first embodiment of the present invention is shown in FIGS.
It will be explained with reference to. 1 is a block diagram showing a first embodiment of the present invention, FIGS. 2, 3 and 4 are a front view, a sectional view and an electric circuit diagram showing an interlock device of the first embodiment of the present invention. Bus (2) to signal branch
(4), the indicator (6) to the landing call button (8), the signal bus (10) to the basket (12), etc. are exactly the same as those of the above-mentioned conventional device.

Referring to FIG. 1, the first embodiment of the present invention is as follows.
The same as the conventional device described above, a control panel (26) provided in the machine room, an elevator control microcomputer (1A) provided in the control panel (26), and a series of a landing microcomputer Microcomputer for landing transmission control that controls transmission (1
B), a car transmission control microcomputer (1C) for controlling serial transmission with the car / microcomputer, an address setting operation start switch (25) for the hall microcomputer, and a door (2) provided in the hall door (23).
An interlock device (22) that locks 3), a hall microcomputer (5A) to which a rotary SW is not connected, and an EEPROM that is electrically connected to this hall microcomputer (5A) and is electrically erasable by a non-volatile memory (24) and basket (12)
It is composed of a main rope (21) for moving up and down.

FIG. 2 is a front view of the interlock device (22) viewed from the hoistway side, and FIG. 3 is a sectional view taken along the line AA of FIG. 2 and 3, the hanger plate (27) hangs the door (23) at the landing for opening and closing the entrance (31) of the elevator at the bottom, and hangs it on the rail (29) fixed to the hanger case (28). Guided by car (30). The actuating body (32) has an L shape, and an L-shaped bent portion is attached to the hanger plate (27), and a horizontal side has a mounting metal (33) fixed to the hanger case (28) on the left side in FIG. ) Is provided with a hook (35) which engages with a fixed piece (34) fixed to lock the door (23) of the landing when fully closed. A part of the horizontal side of the protrusion (36) is bent at a right angle so that the operating body (32) is urged counterclockwise in FIG. 2 and a contact contact (38) when locked. A short-circuit bar (39) is installed to short-circuit and confirm that the lock is completed electrically. Further, the pair of engagement plates (40) and (41) are provided so that the facing distance changes when the basket door (20) moves.

FIG. 4 is an electric circuit diagram showing how the contact contacts (38) and the short-circuit bar (39) of the interlock device (22) are connected. The details of the contact contacts (38) are four. It is composed of contacts (38a), (38b), (38c) and (38d). The gate switch (42) is provided in the car door device. The coil (43) of the motor driving main contactor is provided in the control panel.

In FIG. 4, only the contacts of the predetermined interlock device (22) on the first floor are shown, but in reality, the contacts of the interlock device (22) on each floor are connected in series. The short-circuit bar (39) is configured to open when the door (23) at the landing is open and close when the door (23) is closed.

By the way, the detecting means of the present invention comprises the interlock device (22) in the first embodiment of the present invention described above.

Next, the operation of the above-described first embodiment will be described with reference to FIG.
Also, description will be made with reference to FIG. FIG. 5 is a flow chart showing the program of the elevator control microcomputer (1A) of the first embodiment of the present invention, and shows only the processing relating to the address setting of the hall microcomputer. FIG. 6 is a flow chart showing a program of the hall microcomputer (5A) according to the first embodiment of the present invention, showing only the processing relating to the address setting of the own station.

First, the address setting operation start switch (25)
When is closed, the elevator control microcomputer (1A) starts the address setting process. Normally, this address setting operation start switch (25) is turned on / off by maintenance personnel.
To be done. Hereinafter, the process will be described assuming that the number of elevator stops is three.

In step (50) of FIG. 5, the elevator control microcomputer (1A) notifies the hall microcomputer (5A) on each floor that the address setting operation will be started. That is, the address setting start command is sent to the signal line (2) via the hall transmission control microcomputer (1B).

In steps (51) to (52), the car (12) is moved to the lowest floor to open the door (20) of the car (12). That is, the door (20) of the basket (12) and the door (23) of the bottom floor are
The engagement plates (40) and (41) are engaged with each other, and the hook (35) is disengaged to open the door (23) at the lowest floor. When the landing door (23) is opened, the shorting bar (39) is lifted and the contact contacts (38a) and (38b) and (38c) and (38d) are opened. And the landing microcomputer (5A) is a contact contact
Recognize that (38) is open.

In steps (70) to (72) of FIG. 6, since the elevator control microcomputer (1A) of the platform microcomputer (5A) has already transmitted the address setting start command,
Since the contact point of contact (38) is open, only the lowest floor landing microcomputer (5A) returns the address transmission request signal.

In steps (53) to (54) of FIG. 5, the elevator control microcomputer (1A) sends out the address value 01. That is, the address value 01 is sent to the signal line (2) via the hall transmission control microcomputer (1B).

Steps within the landing microcomputer (5A) on each floor
It is only the lowest floor microcomputer (5A) that the processing up to (73) is proceeding from the above description.

In steps (73) to (75) of FIG. 6, the hall microcomputer (5A) receives the address value 01 and sets 0 as the own station address in the EEPROM (24) connected to the own station.
Write 1. Then, the fact that the setting of the own station address is completed is returned to the elevator control microcomputer (1A) as a reply signal.

With this, the address setting of the lowest floor landing microcomputer (5A) is completed, and the elevator control microcomputer (1A)
Starts address setting of the next floor platform microcomputer (5A).

In steps (55) to (56) of FIG. 5, the elevator control microcomputer (1A) moves the car (12) to the lowest floor +1.
Drive to the floor and start address setting for the next landing microcomputer (5A).

Thereafter, similar to the processing of steps (51) to (55),
When the processes of steps (56) to (60) and steps (61) to (65) are executed for 2F and 3F, and the address setting of all floors is completed, in step (66) the platform of all floors The completion of the address setting operation is sent to the microcomputer (5A), and the elevator starts normal service.

In the first embodiment of the present invention, as described above, the interlock device (22) is also used as the detection device for detecting the car (12) at the landing of each floor, and the interlock device (22) is also used. Is equipped with an address setting operation mode that enables communication with the elevator control microcomputer (1A) only on the landing site microcomputer (5A). Thus, there is an effect that the setting work is unnecessary and erroneous setting of the address is eliminated.

Next, the configuration of the second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a perspective view showing a second embodiment of the present invention, and the basket (12), the main ropes (21), the landing point microcomputer (5A) and the like are exactly the same as those of the first embodiment described above.

Referring to FIG. 7, the second embodiment of the present invention is
A guide rail (45) provided in the hoistway of the elevator, a detection plate (46) attached to the basket frame, and a landing board microcomputer provided in the hoistway, which are exactly the same as those in the first embodiment described above. (5A) and a basket detection device (47) connected via an output line (48).

In the first embodiment, an example in which the interlock device (22) also serves as a car detection device by opening the door (20) of the car (12) is shown, but in the second embodiment, it is dedicated. The basket detection device (47) is separately provided. The basket detection device (47) outputs a high level (5V) to the output line (48) when detecting the detection plate (46).

By the way, the detecting means of the present invention is constituted by the basket detecting device (47) in the second embodiment of the present invention described above.

Next, the operation of the above-described second embodiment will be described with reference to FIG.
9 and FIG. 9. FIG. 8 is a flow chart showing the program of the elevator control microcomputer (1A) according to the second embodiment of the present invention, and shows only the processing relating to the address setting of the hall microcomputer. FIG. 9 is a flow chart showing the program of the hall microcomputer (5A) of the second embodiment of the present invention, showing only the processing relating to the address setting of the own station.

The difference between the program of the elevator control microcomputer (1A) of the first embodiment shown in FIG. 5 and the program of the elevator control microcomputer (1A) of the second embodiment shown in FIG. Steps (52), (57) and (6 in 5
This means that the process equivalent to 2) is no longer necessary.

Further, the difference between the program of the hall microcomputer (5A) of the first embodiment shown in FIG. 6 and the program of the hall microcomputer (5A) of the second embodiment shown in FIG. ) Is equivalent to step (101) in FIG.
Is changed to the processing of.

In the second embodiment of the present invention, as described above, the car detection device (47) is provided on the hoistway side of the landing on each floor, and the car landing microcomputer on which the car detection device (47) operates.
Since only (5A) has an address setting operation mode that allows communication with the elevator control microcomputer (1A), the equipment for address setting and the setting work for the address microcomputer (5A) on each floor There is an effect that it becomes unnecessary and erroneous setting of an address is eliminated.

In each of the above-described embodiments, the elevator having three stops has been described, but if the elevator control microcomputer (1A) performs the same process on a floor having more than three stops, the number of stops may exceed three. Can also handle.

Although the addresses are set from the lowest floor in each of the above-mentioned embodiments, it goes without saying that the intended purpose can be achieved even if the addresses are set from the highest floor.

[0045]

As described above, according to the present invention, the elevator control means provided on the control panel for controlling the operation of the car, and the signal transmission between the elevator control means provided on the control panel and the equipment for the landing and the car. Transmission control means, a hall microcomputer provided on each floor of the hall to control the equipment of the hall and the signal transmission, and a detection means provided on each floor corresponding to the hall microcomputer to detect the approaching movement of the basket. In the operation mode in which only the hall microcomputer on which the detection means operates can communicate with the transmission control means, the elevator control means sets the address of the hall microcomputer. An effect that the address can be automatically set is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a front view showing the interlock device according to the first embodiment of the present invention.

FIG. 3 is a sectional view showing an interlock device according to a first embodiment of the present invention.

FIG. 4 is an electric circuit diagram showing the interlock device of the first embodiment of the present invention.

FIG. 5 is a flowchart showing a program of the elevator control microcomputer according to the first embodiment of the present invention.

FIG. 6 is a flow chart diagram showing a program of the hall microcomputer of the first embodiment of the present invention.

FIG. 7 is a perspective view showing a second embodiment of the present invention.

FIG. 8 is a flow chart diagram showing a program of an elevator control microcomputer according to a second embodiment of the present invention.

FIG. 9 is a flow chart diagram showing a program of a hall microcomputer of a second embodiment of the present invention.

FIG. 10 is a block diagram showing a conventional elevator signal transmission device.

11 is an electric circuit diagram showing a portion A of FIG. 10 in a conventional elevator signal transmission device.

FIG. 12 is a waveform diagram showing a transmission signal of a conventional elevator signal transmission device.

[Explanation of symbols]

 (1A) Elevator control microcomputer (1B) Station transmission control microcomputer (1C) Basket transmission control microcomputer (5A) Station microcontroller (12) Basket (22) Interlock device (24) EEPROM (47) Basket detection device In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

(57) [Claims] 1. An elevator control means provided on a control panel for controlling operation of a car, a transmission control means provided on the control panel for controlling signal transmission between the elevator control means and a hall and equipment of a basket, and a hall on each floor. A hall microcomputer provided to control the equipment of the hall and the serial signal transmission, and a detection means provided on each floor corresponding to the hall microcomputer to detect the approaching movement of the basket,
An elevator signal transmission device characterized in that the elevator control means sets the address of the hall microcomputer in the operation mode in which only the hall microcomputer on which the detection means operates can communicate with the transmission control means. .