JPS5926587B2 - Elevator stop calculation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device that performs calculations for determining whether an elevator should stop in response to a hall call, a car call, or the like.

In general, current high-speed elevators have electromechanical floor selectors, which have a profile that greatly reduces the movement of the car, as seen in Japanese Patent Publication No. 37-17062.

Therefore, when a high-speed elevator is installed in a skyscraper, the height of the floor selector increases in proportion to the building, and the elevator machine room that houses them must also be made higher. This resulted in poor use of the building.

In view of this point, in recent years, Japanese Patent Publication No. 49-48042 has proposed a floor selector constructed of a digital integrated circuit.

- The concept of a stop calculation device when using a conventional electromechanical floor selector will be explained in more detail below.

In a high-speed elevator, the time point at which it is decided to stop at the destination floor must be a point that is a time preceding the current position of the car by the time required for the car to decelerate.

In other words, a deceleration time approximately equal to the time required for the car to accelerate is required.

Therefore, it is necessary to perform a stop calculation based on a car position that is ahead of the current car position by the deceleration time.

An example of this will be explained in detail with reference to FIG. FIG. 1 shows the leading car position when the car starts from the first floor, and the curve a shows the analog leading car position which is ahead by the deceleration distance.

(The fact that curve a curves between times t5 and t6 indicates that the car has reached its maximum speed.

) However, the actual stops are on the 1st and 2nd floors...
Since the floors are digital floors such as .

In fact, the point at which you actually decide to stop and start decelerating is as follows:
If you are on the 2nd floor, a2. If you are on the 3rd floor, a3...
That is why.

However, calculating the stop requires a considerable amount of calculation time, so the points a2, a3, a4...
. . . When the result is obtained, it is point a2. It is possible that it has passed a3...

In other words, if the preceding car position signal on the third floor is input to the stop calculation device even after the period 3F', the result may be output after point a3, that is, after time t3.

However, by that time, it would no longer be possible to stop on the third floor.

Taking these things into consideration, the actual stop calculation is performed within the range of period 2F', period 3F', etc., respectively.
The result is configured to be known before the points a2, a3, . . . .

Specifically, assuming a leading car position such as a curved car that is a certain distance ahead of the preceding car position, a stop calculation is performed within the period 2F', 3F', etc. until the car curves. , the result is always arranged to appear before points a2+a3, etc.

In an electromechanical floor selector, setting the curve a and the curve at a certain distance can be easily done by physically separating them by a certain distance and attaching them to one advancer. Can be implemented.

However, when a floor selector is constructed using a digital integrated circuit, setting a curved line in the same manner as in the conventional example described above becomes complicated and expensive.

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned drawbacks, and aims to provide an elevator stop calculation device that can perform a stop calculation with a simple and inexpensive configuration.

Hereinafter, an embodiment in which the present invention is applied to a 10-story building will be described with reference to FIGS. 2 to 4.

Figure 2 shows periods 2F' and 3 of the preceding car position shown in Figure 1.
Point a is the range where F'-... is output.
It is exactly the same as FIG. 1 except that it is extended to 2+23 and set to 2f, 3f, etc.

Incidentally, it is sufficient to assume that a concrete example of the floor selector for generating the preceding car position at this time is similar to that in Japanese Patent Application Laid-Open No. 49-48042.

In FIG. 3, reference numeral 1 denotes a temporary stop arithmetic device, which will be explained using logic gates, but actual arithmetic operations are performed by devices such as sequencers, electronic computers, relays, etc., which take a relatively long time to perform the arithmetic operations.

1f and 10f are preceding car position signals for the 1st to 10th floors as shown in Figure 2, 2 is a running signal that becomes rHJ while the car is running, and 3 is "L" when the car is fully loaded. 4 is the upstream signal which is rHJ when the car is serving the upstream direction, 5 is the downstream signal which is "H" when the car is servicing the downstream direction, 6A, 6
J is a car call signal that becomes IHj when a car call from the 1st floor to the 10th floor is registered, 7A to 7■ is an up call signal that becomes "H" when a car call from the 1st floor to the 9th floor is registered, 8B
~8J is a down call signal that becomes "H" when a down call from the 2nd floor to the 10th floor is registered, 9A ~ 9J, 10A ~ IO
I, 11B to 11J are AND gates, 12A to 12J are OR gates 12Aa to 12Ja are their output signals, and are temporary stop signals for the 1st to 10th floors, respectively.

In FIG. 4, reference numeral 13 denotes a stop determination device, which is composed of a semiconductor integrated circuit or the like having a relatively high calculation speed.

t4A to 14J are AND gates, 15 is OR gate, 1
6 is a memory, and 16a is its output signal, which serves as a stop command signal.

17 is a door opening signal which becomes rHJ when the door opens.

A case will now be described in which the car is traveling in the upward direction, a car call is registered on the second floor, and the preceding car position has reached the second floor.

In the above state, running signal 2.2nd floor call signal 6B
is "H", and the preceding car position signal 2f is rHJ.
Then, the output signal of AND gate 9B becomes rHJ,
The output signal 12Ba of the OR gate 12B becomes "H",
This means that the temporary stop signal 12Ba for the second floor has been issued as a result of the calculation.

Then, this signal 12Ba is input to the stop judgment device 13, and if the preceding car position signal 2f on the second floor is still being generated at that time, the output signal of the AND gate 14B becomes "H", and the OR gate 15 Since the output signal of is also rHJ,
The memory 16 is set and the real stop command signal 16a
becomes rHJ, and deceleration actually begins.

When the car reaches the destination floor and the door opens, the door opening signal 17 becomes "H", the memory 16 is reset, and the stop command signal 16a becomes rLl.

This means that the situation is back to the beginning.

However, at this time, if the point in time when the result of the calculation by the temporary stop calculation device 1 is obtained has passed the point a2 in FIG.
In other words, if the preceding car position signal 2f on the second floor is rLJ, the output signal of the AND gate 14B is rL.
Since it remains at J, the stop command signal 16a is not issued.

Also, since the signal 2f becomes "L", the signal 12Ba also becomes rL.
J, and the current calculation will naturally disappear.

As explained above, the present invention performs a temporary stop calculation based on a preceding car position signal using a temporary stop calculation device composed of a computer or the like, and when this temporary stop signal is issued, the preceding car position signal is not issued. In this case, a stop command signal is generated from a stop judgment device composed of a semiconductor integrated circuit, etc., so even when a stop decision operation is performed on a device that takes a relatively long calculation time, such as an electronic computer, it is possible to stop. To reliably issue a stop command signal to a floor, and to configure a device simply and inexpensively.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the operation of a conventional elevator stop calculation device, FIG. 2 is an operation explanatory diagram of the elevator stop calculation device according to the present invention, and FIGS. 3 and 4 are illustrations of the elevator stop calculation device according to the present invention. FIG. 2 is a logic circuit diagram showing an example. 1...Temporary stop calculation device, 1f to 10f...
・・1st floor to 10th floor preceding car position signal, 2・・・・travel signal, 4・・・・up direction signal, 5・・・・
Downbound direction signal, 6A to 6J...1st floor to 10th floor car call signal, 7A to 7■...1st floor to 9th floor landing call signal, 8B to 8J...・2nd floor, 10th floor landing call signal, 9A-9J. 10A-1QI, 11B-11J...AND gate, 12A-12J...OR gate,
13...A stop judgment device, 14A to 14J...
...AND gate, 15...OR gate,
16...Memory, 17...Door opening signal, and the same parts in the drawings are indicated by the same reference numerals.

Claims (1)

[Claims] 1 A temporary stop signal to the corresponding floor based on the preceding car position signal, which is composed of a preceding car position signal generator, a computer, etc., which emits a preceding car position signal that precedes the car position and corresponds to the next floor. and a semiconductor integrated circuit, etc., and when the temporary stop signal is issued, if the preceding car position signal of the corresponding floor is issued, a stop command signal is issued to the corresponding floor. An elevator stop calculation device comprising a judgment device.