JPS5943379B2 - elevator control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator control device, and in particular, to a device for preventing mischievous calls by passengers getting off the elevator at the final floor when the elevator finishes service for the final call and returns to the reference floor. It is related to.

Generally, when the service for the last call is completed, the elevator turns around and returns to the standard floor, but if a passenger getting off the elevator at the last floor accidentally presses the call button, the elevator returns to the standard floor. This is a problem in terms of elevator operation, as the elevator repeatedly makes unnecessary stops in response to the car calls, but conventional elevator control systems have not taken this into account.

The conventional control circuit will be explained above.

FIG. 1 shows a conventional car call registration circuit.

In Figure 1, Pl to P5 are the stupid call registration buttons, P-N
1 is a control bus, 11 is a call registration indicator light, and 10 is a call registration storage unit.

When PIK-P5K is pressed, the control bus P is connected between IKL-5KL and N by the action of the call registration storage unit 10.
A voltage approximately equal to -N is generated.

Figure 2 is a car call detection and car call cancellation circuit.

12 is a fixed segment for car call detection on each floor attached to the floor selector; 13 is a movable brush that slides on the fixed segment in synchronization with the movement of the elevator; 14 is a call registration detection relay; 15 14A is the normally open contact of the car call registration detection relay 14, and 16B is the door open confirmation relay. (not shown) normally closed contact, 17B is deceleration command relay (not shown)
It is a normally closed contact.

Fig. 3 is a selection circuit for an idiot caller.

PC-N is a control bus bar, ~19 and 22 are direction selection fixed segments for ascending and descending operations that are attached to the floor selector, and 20 and 23 are direction selection fixed segments that move on the fixed segments in synchronization with the movement of the elevator. sliding movable brushes for upward and downward movements; 21 and 24 are contacts which are mechanically closed when said movable brush is located intermediate said fixed segment; 25 and 26 are for downward movement and The direction selective relays 25B and 26B for upward operation are the normally closed contacts of the direction selective relays 25 and 26, 25A and 26, respectively.
A is a normally open contact of the direction selective relays 25 and 26, respectively;
27 and 28 are diodes.

Figure 4 is the car call direction operation circuit.

In FIG. 4, 25A and 26A are normally open contacts of relays 25 and 26 in FIG. 3, 29A and 3, respectively.
0A is a normally open contact of the downward direction relay 29 and upward direction relay 30, respectively, and 31A is a normally open contact of an operating relay (not shown) which is energized from when the elevator starts operation upon call registration until it stops at the call registration floor. It is.

Assume that the elevator is currently waiting on the second floor, which is the standard floor, and a passenger gets on the elevator and presses the car call registration button P5K.

In FIG. 1, a voltage of 5KL is applied.

Next, in Figure 3, 5KL-27-19-20-251
The ascending direction selection relay 26 is energized by the loop 3-26.

When 26 is excited, 26A-29B-
30 energizes the upward relay 30.

As a result, a lift operation command relay (not shown) is energized, and the elevator starts its lift operation.

Then, the upward direction relay 30 is operated until the elevator stops at the 5th floor by the normally open contact 31A of the operating relay (not shown).
is retained.

In FIG. 3, while the movable brush synchronized with the movement of the elevator moves between the fixed segments, the upward direction selection relay 26 is held by the contacts 21.

A diode matrix circuit holds the upward selection relay 26 while the movable brush is moving over the fixed segment.

When the elevator reaches a position a certain distance before the fifth floor, which is the destination floor, the movable brush rides on the fixed segment to which no voltage is applied.

Contact 21 is therefore opened and upward selection relay 26 is deenergized.

At the same time, a deceleration command relay (not shown) is deenergized by a deceleration command circuit (not shown), and the elevator shifts to deceleration operation.

When the vehicle reaches the door zone of the destination floor, the door will be opened automatically.

At this time, in FIGS. 1 and 2, the output of the transformer 15 is 15-17B-16B-14A-18-13-12-
It is applied to the 5KL loop and performs a reset action on the call registration storage unit 10.

This deenergizes the car call registration detection relay 14 and opens its normally open contact 14A.

Further, the elevator returns to the reference floor by a reference floor return circuit (not shown) and finally waits at the reference floor.

Note that while traveling to the standard floor, the vehicle responds to calls in the same direction on intermediate floors.

In the above description of FIGS. 1 to 4, it is assumed that the elevator finally stops at the 5th floor because a passenger who boarded the elevator at the standard floor registers a car call on the 5th floor.

At this time, if a passenger intentionally presses a car call registration button on another floor when getting off, the elevator will respond each time and return to the standard floor.

Therefore, in the worst case, the car will stop at each floor even though there are no passengers in the car, causing inconvenience to passengers waiting in the hall on other floors and greatly reducing operating efficiency.

In view of the above-mentioned points, the present invention has been developed by temporarily shutting off the car call registration circuit at the start of deceleration of the maximum call at the time of the so-called maximum call reversal operation when there are no car calls or hall calls on the floor above, and from the door closing end. By continuing the above-mentioned cutoff state until the door closes within a certain distance (for example, 200 mm), an elevator is provided that prevents car call registration from being tampered with.

An embodiment of the present invention will be described below with reference to FIGS. 5 and 6.

In FIG. 5, 17B, 25A, 26A.

29A, 30A, and 31A are as already explained in FIGS. 2 to 4.

32A is the normally open contact of the door open command relay (not shown);
4B, the door is within a certain distance from the closed end of the door (for example, 200m)
The normally closed contact 33 of a relay (not shown) is energized when the relay is in position m), and 33 is a normally closed contact of a relay (not shown) that is energized when the door is opened from the start of maximum call reversal deceleration to a certain distance (for example, 200 mm) before the door closes via the door opening operation. It is a relay that is energized while closed.

In Figure 6, 33B is the normally closed contact of 33 above, and the others are the 1st contact.
Same as the figure.

In the above configuration, for example, when the elevator carries a passenger and ascends to the vicinity of the floor with the highest call and starts the highest call reversal deceleration, the relay 33 is excited by the loop of 25A-3OA-33, and the relay 33 is energized by the loop of 25A-3OA-33 It is self-maintained by the loop.

When the elevator reaches the destination floor and stops, the above 2.
Although the excitation conditions of 5A-3OA and 17B-31A are cut off, the normally open contact 32A of the door open command relay (not shown) continues to self-hold, and the relay 33 maintains its excitation state.

Next, the relay 32A is opened after a certain period of time, but the relay 33 still maintains its energized state by the normally closed contact 34B until the door closes to a certain distance (for example, 200 mm) before the closed end of the door.

Therefore, in FIG. 6, the car call registration control bus is disconnected by the action of normally closed contact 33B, and car call registration becomes inoperable.

Therefore, even if a passenger who gets off the elevator accidentally presses the car call button after the elevator reaches the highest called floor, the car call will not be registered, and the elevator can quickly return to the standard floor without stopping midway. .

As explained above, according to the present invention, the elevator car call registration operation is temporarily stopped from when the elevator starts decelerating at the time of the highest call until just before the elevator reaches the floor and closes the door again. It is possible to obtain a rational elevator control device that quickly returns the elevator to a reference floor without responding to useless car calls caused by mischief.

[Brief explanation of the drawing]

1 to 4 are circuit diagrams showing various parts of a conventional elevator control device, and FIGS. 5 and 6 are circuit diagrams showing an elevator control device according to the present invention. 10... Car call registration unit, 25...
...Descent direction selection relay, 26...Descent direction selection relay, 29...Descent direction relay, 30...
...Ascent direction relay, 31...Driving relay, 32...Door open command relay, 33...
Car call registration cutoff relay, 34... Door open position relay, PIK-P5K... Car call push button switch.

Claims (1)

[Claims] 1. In an elevator control device that responds to car calls and hall calls in sequence according to the direction of operation, decelerates to a stop, and opens and closes the doors, the elevator responds to the highest call, starts decelerating, and then stops when it reaches the floor. 1. A control device for an elevator, characterized in that a device is provided for preventing registration of a car call while the door is opened and the door is closed to a predetermined position.