JPS6133789B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for managing the operation of an elevator.

In an elevator where multiple cars are operated and managed as a group, when multiple cars gather together, it may be difficult to resolve the problem. In particular, when hall calls are registered on adjacent floors, the clustered cars respond to those calls, and when car calls are registered within those cars, those car call floors also become adjacent. occurs. Therefore, when the cars answer those car calls, they will regroup and this will continue for a long time, resulting in poor service to other hall calls.

This invention aims to improve the above-mentioned problems, and provides an elevator operation management device that solves the problem within a short time when multiple cars are gathered together, thereby improving service to other hall calls. The purpose is to provide.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1a and 1b are car position signals representing the car positions (floors) of cars a and b, respectively; 2a,
2b is an upstream signal that becomes "H" when the a and b machines are in upstream operation, 3a and 3b are gate circuits that are opened when the upstream signals 2a and 2b become "H", respectively, and 4 is the input A and the input A comparator that compares B and outputs "H" when A>B, 5 is a comparator that outputs "H" when B>A, and 6
is an arithmetic unit that generates the absolute value of the difference between input A and input B |A-B|, 7 is a predetermined value signal expressed by the number of floors (for example, 2nd floor), and 8 is a signal that compares input C and input B. C
A comparator whose output is "H" when the signal is D. 9 is a monostable element that generates a pulse of a certain time width (for example, 15 seconds) when there is an input. 10a and 10b are AND gates. 11a and 11b are each a unit. and an up call stop decision signal 14 that becomes "H" when stopping the car No. b for an up call, 12a and 12b are AND gates, and 13a and 13b similarly become "H" when stopping for a down call.
Similarly, a, 14b is a car call stop decision signal that becomes "H" when the car is stopped by a car call, and 15a, 1
5b is an OR gate, and Sa and Sb are also stop decision signals.

Next, the operation of this invention will be explained.

Now, assuming that machine a is on the 5th floor and machine b is on the 3rd floor, and both are operating up, the up direction signal 2a,
2b is "H", car position signal 1 of both cars
a, 2a are given to comparators 4, 5 and arithmetic unit 6. Since Unit A is on the 5th floor and Unit B is on the 3rd floor, 5
Since >3=A>B, the output of comparator 4 is "H" and the output of comparator 5 is "L". Also, the calculator 6 calculates 5-3=2 floors, and the comparator 8
sent to. In comparator 8, 2=2 or C=D
Therefore, the output becomes "H", and the monostable element 9 emits an output that becomes "H" for 15 seconds. Now, the output of AND gate 10a becomes "H",
The output of the OR gate 15b, that is, the stop decision signal Sb of the car No. b becomes "H". Therefore, car No. b is forced to stop at the nearest floor (stops regardless of whether there is a call or not).

On the other hand, since the output of the AND gate 10a is "H", the output of the AND gate 12a becomes "L", and the output Sa of the OR gate 15a also becomes "L".
Therefore, even if there is an uplink call above car No. A, Car No. A will pass through it.

In this way, when machine B, which is running up, approaches machine A, which is running up, and the floor difference between the two units becomes two floors or less, machine B is stopped at the nearest floor, and
Since the aircraft was designed to pass the call ahead,
The distance between both units will be increased. After 15 seconds have elapsed, the output of the monostable element 8 becomes "L" and the normal state is restored.

In addition, in the above normal state, the AND gate 10
Since the outputs of a and 10b are both "L", if the uplink call stop decision signals 11a and 11b become "H", the outputs of AND gates 12a and 12b become "H".
Therefore, the stop decision signals Sa and Sb are "H", respectively.
Therefore, each car stops at the up call. The same applies to the car call stop decision signals 14a, 14b and the down call stop decision signals 13a, 13b.

Although the embodiment shows a case in which two cars respond to an uplink call, it is obvious that the present invention can be similarly applied to a case in which there are three or more cars or to a downcall.

Note that it is also possible to implement as follows.

(a) The 15 second time limit is not particularly limited. Also, this time limit is made variable depending on traffic conditions.

(b) A distance limit will be used instead of a time limit. That is, the nearest floor stop command and pass command are issued until the two cars are separated by a certain distance (floor).

(c) Instead of the time limit, the nearest floor stop command and pass command will be issued until a certain time interval, which also takes into account the time to stop for hall calls and car calls, is reached.

(d) Not only when the distance between two cars approaches a predetermined value or less, but also when the time interval, which takes into account the time to stop for hall calls and car calls, becomes less than a predetermined value, the control of both cars is activated. Let's do it.

As explained above, in this invention, when the distance or time interval between two cars driven in the same direction becomes less than a predetermined value, until a predetermined condition is satisfied,
A process command for the hall call is issued to the preceding car, and a stop command to the nearest floor is issued to the following car, so even when multiple cars gather together, this problem can be resolved within a short period of time. This allows for better service to other hall calls.

[Brief explanation of the drawing]

The figure is a combined block and logic circuit diagram showing an embodiment of an elevator operation management system according to the present invention. 1a, 1b...car position signals of cars a and b, 2a, 2b...also up direction signals, 3a,
3b...Same gate circuit, 4,5...Comparator,
6... Arithmetic unit, 7... Predetermined value signal, 8... Comparator, 9... Monostable element, 10a, 10b, 12
a, 12b...AND gate, 15a, 15b...
...OR gate, Sa, Sb...stop decision signal for units a and b.

Claims (1)

[Claims] 1. A comparator that operates when the distance or time interval between two cars operating in the same direction becomes less than a predetermined value; when this comparator operates, the interior of the above-mentioned cars is operated until a predetermined condition is satisfied. An elevator operation control device comprising a command circuit that issues a passing command to a leading car to pass a hall call and a command circuit to issue a stop command to a trailing car to the nearest floor. 2. The elevator operation management device according to claim 1, wherein the predetermined condition is until a certain period of time has elapsed. 3. The elevator operation management device according to claim 1, wherein the predetermined condition is that the distance between the cars is a certain distance.