JPS6317748B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for displaying a position in an elevator landing.

A position indicator is installed at the elevator landing. In general, this position indicator lights up the floor indicator light placed on each floor that corresponds to the floor where the elevator car is located, or indicates the direction of car operation (upward and downward direction). This system displays the driving status of the car to waiting customers by lighting direction indicator lights. The waiting passengers use the position indicator to roughly predict how long it will take for the car to arrive, and wait in front of the landing of the car that is likely to arrive early.

However, when there are a large number of cars arranged in parallel (for example, 4 to 8 cars), it is a burden for waiting customers to judge which car will arrive first using a position indicator. Further, since the amount of information required for determination is only the car position and driving direction, the above-mentioned arrival determination is difficult. Therefore, it has been proposed to install waiting time display devices at landings that predict and display the time it will take for a car to arrive, but the accuracy of waiting time prediction is not yet sufficient, and this may confuse waiting customers.

The waiting time display device itself is expensive.

For these reasons, it has not become widespread.

This invention improves the above-mentioned problem by not displaying the position indicator when the predicted value of the expected arrival time of the car is long, so that waiting customers can easily judge the arrival status of the car. An object of the present invention is to provide an elevator position display device that allows the user to perform the following functions.

An embodiment in which the present invention is applied to a case where three cars are installed in a six-story building will be described below with reference to FIGS. 1 to 3. In addition, A to C at the end of the code
Those marked with are for machines A to C, respectively.

In the diagram, 1 to 6 are floors 1 to 6, 1a to 6a.
are car position signals that become "H" when cars A to C are on floors 1 to 6 on the 1st floor, 2b is an up call signal that becomes "H" when an up call is registered at the landing on the 2nd floor, and 2C is also the down call signal on the second floor, 1d,
4d to 6d are car call signals that become "H" when a car call on the 1st floor and 4th to 6th floor is registered, respectively; 7
is a well-known expected arrival time calculation device 71a that predicts and calculates the time it will take for the car to arrive at each floor in each direction, assuming that it takes 10 seconds for the car to stop one time and 2 seconds for it to travel one floor. 75a are the outputs of the arithmetic unit, and 72b to 76b are expected arrival time signals for up calls from the 1st to 5th floors, respectively. 72b to 76b are expected arrival time signals for down calls from the 2nd to 6th floors, and 8 is set to 20 seconds, for example. 9 is the up direction signal that becomes "H" when the car is running up, 10 is the down direction signal that is also "H" when the car is running down, and 11 is the display control circuit for the second floor of car No. 1. , 12 and 13 are comparators that compare input X and input Y, and when the input is X and the input is Y, the output is "H", and when the input , 16 is an OR gate, 17, 18, 21-26 are AND gates, 2
Reference numeral 7 designates an upward direction indicator light disposed on a position indicator provided at the landing on the second floor, 28 also indicates a downward direction indicator light, and 31 to 36 indicate floor indicator lights for the first to sixth floors.

Next, the operation of this embodiment will be explained.

Now, as shown in Figure 2, car A is running up the 3rd floor 3, car B is running up the 4th floor 4, and car C is running down the 6th floor 6. Car calls 4dA and 5dA for the 4th and 5th floors are registered, car call 6dB for the 6th floor is registered for car B, car call 4dC for the 4th floor is registered for car C, and downlink call 2c for the 2nd floor is registered. shall be taken as a thing.

The calculation device 7 calculates the expected arrival times 71aA to 75aA and 76bA to 72bA of the car A at each floor as follows.

Estimated arrival time (seconds) 1st floor up (71aA) 36 2nd floor up (72aA) 38 3rd floor up (73aA) 0 4th floor up (74aA) 2 5th floor up (75aA) 14 6th floor down (76bA) 26 5th floor down (75bA) 28 4th floor down (74bA) 30 3rd floor down (73bA) 32 2nd floor down (72bA) 34 Since expected arrival time signal 72aA (38 seconds) > constant value signal 8A (20 seconds), The output of the comparator 12 is "L", and the output of the AND gate 14 is also "L". Furthermore, since the expected arrival time signal 72bA (34 seconds)>constant value signal 8A (20 seconds), the output of the comparator 13 is also "L", and the output of the AND gate 15 is also "L".
It is. Therefore, the output of OR gate 16 also becomes "L", and AND gates 17, 18, 21-2
Since all the outputs of 6 are "L", the up and down direction lights 27A, 28A of the position indicator on the second floor and the floor indicator lights 31A to 36A all remain off. In the same way, the expected arrival time to the 2nd floor 2 for aircraft B is calculated, and the uphill direction is
26 seconds, and 22 seconds in the descending direction, and the position indicator on the second floor remains off. In addition, in the C car, the time is 22 seconds in the up direction and 18 seconds in the down direction, and the display control device 11C of the C car (not shown, but is used by replacing the display control device 11A in Fig. 1. The same applies to the others.)
Then, the output of the comparator 13 becomes "H", and the second floor down call signal 2c is "H", so the output of the AND gate 15 becomes "H", and the output of the OR gate 16 also becomes "H". , AND gate 17, 18,
21-26 will be held. At this time, since the car position signal 6aC is "H", the AND gate 2
The output of No. 6 becomes "H", and the floor indicator light 36C on the 6th floor of the car No. C on the 2nd floor lights up. Also, since the downstream signal 10C is "H", the AND gate 18
The output becomes "H" and the down direction light 28C turns on.

In the end, the people waiting on the second floor only need to pay attention to car No. C whose position indicator is lit and wait for the car to arrive.

Next, as shown in Figure 3, it is assumed that car A is running down the 4th floor 4, car B is running up the 3rd floor 3, and car C is running down the 6th floor 6. For car A, a car call of 1 dA for the 1st floor is registered, for car B, a car call of 6 dB for 6th floor is registered, and for car C.
It is assumed that there is no car call and that an up call 2b for the second floor is registered.

In this case, the expected arrival time is 71aA~75aA,
76bA to 72bA are calculated as follows.

Estimated arrival time (seconds) 1st floor up (71aA) 6 2nd floor up (72aA) 18 3rd floor up (73aA) 20 4th floor up (74aA) 22 5th floor up (75aA) 24 6th floor down (76bA) 26 5th floor down (75bA) 28 4th floor down (74bA) 0 3rd floor down (73bA) 2 2nd floor down (72bA) 4 Expected arrival time 72aA (18 seconds) < constant value signal 8A
(20 seconds), the output of comparator 12 is "H"
Since the up call signal 2b on the second floor is also "H", the output of the AND gate 14 is "H". Therefore, the output of the OR gate 16 is also "H", and the car position signal 4aA is "H", so the output of the AND gate 24 is "H", and the 2
The floor indicator light 34A on the 4th floor of the A car on the floor lights up. Also, since the expected arrival time 72bA (4 seconds) < constant value signal 8A (20 seconds), the output of the comparator 13 is "H", but since the second floor down call signal 2c is "L" , the output of the AND gate 15 becomes "L". On the other hand, the down direction signal 10 of car A
Since A is "H", the output of the AND gate 18 is "H", and the down direction light 28A is turned on.
Similarly, in Car B, the expected arrival time to the second floor 2 is 28 seconds for the upbound direction and 24 seconds for the downbound direction, and the position indicator remains off. Also, in Unit C,
It takes 12 seconds for the upward direction and 8 seconds for the downward direction, and the 6th floor floor indicator light 36C and the downward direction light 28C are turned on.

In the end, the waiting passengers on the second floor can determine the arrival of cars by paying attention to cars A and C, whose position indicators are lit, and wait for car A or C to arrive.

In the above example, the calculation of the expected arrival time is stopped by 1.
This is simplified as 10 seconds and 2 seconds for traveling on the first floor, but it is not limited to this. In other words, in a group control elevator that uses an assignment system that allocates a car to respond to a hall call, the stop time due to the assigned hall call and the stop time due to the car call that is registered by the passenger who boarded the car due to that stop. Time etc. may also be taken into consideration in calculating the expected arrival time. Furthermore, in a group control elevator in which the car that arrived first responds to a hall call, the expected arrival time may be calculated on the assumption that the car responds to all registered hall calls.

Further, the expected arrival time calculation devices 7A to 7C do not need to be provided exclusively for the position display, and the output of the expected arrival time calculation device provided in the group management device may be used. In this way, it can be constructed at a very low cost.

Further, in the above embodiment, when a hall call is registered and the expected arrival time until a car arrives in the same direction as the hall call is less than a predetermined value, the indicator lights 27A, 28A, 31A to 36A are turned on. Therefore, if there are only passengers waiting in one direction (for example, there are no passengers waiting in the down direction), even if the expected arrival time in the opposite direction (for example, in the up direction) is less than a predetermined value, Indicator light 27 under the condition of
A, 28A, 31A to 36A are never lit, making it easy to judge the arrival status of waiting customers. However, in order to simplify the circuit, the indicator light 27 is activated when the expected arrival time in any direction is less than a predetermined value, regardless of whether a landing call is registered or not.
Even if A, 28A, 31A to 36A are turned on, it is sufficiently practical.

As explained above, in this invention, when the expected arrival time for a car to arrive at the landing area exceeds a predetermined value, the position indicator installed at the landing area is prevented from displaying, so that a large number of cars are arranged side by side. Even at landings where cars are parked, waiting passengers can easily determine the arrival status of their cars.

In addition, when a hall call is registered at a landing and the expected arrival time for the car to arrive at the hall in the same direction as the hall call is less than a predetermined value, the position indicator will display. Especially when there are only customers waiting in one direction, it is possible to easily determine the arrival status of the waiting customers.

[Brief explanation of the drawing]

FIG. 1 is a logic circuit diagram showing an embodiment of an elevator position display device according to the present invention, and FIGS. 2 and 3 are diagrams for explaining the state of a car and a call for explaining the operation of FIG. 1. A~C...Cars from A to C, 1aA to 6aA
...Car position signal on the 1st to 6th floors of Car A, 2b...2
Floor landing up call signal, 2c...Same left landing hall down call signal, 7A...Estimated arrival time calculation device for car No. A, 8
A... Constant value signal on the left, 11A... Display control circuit for the second floor on the left, 12, 13... Comparator, 14, 15...
AND gate, 16...OR gate, 21-26...
AND gate, 31A to 36A...1 on the 2nd floor of Unit A
Floor indicator lights for floors to 6th floor. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of Claims] 1. A position indicator that displays the position of a car at a landing, an expected arrival time calculation device that predicts the time required for the car to arrive at the landing, and a predicted value of the required time that is a predetermined value. A position display device for an elevator, comprising a display control circuit that displays the position indicator in the following cases and prevents the position indicator from displaying in other cases. 2. A position indicator that displays the position of the car at the landing, a landing call registration device that registers the landing calls generated at the landing by direction, and predicts the time required for the car to arrive at the landing and outputs it by direction. An estimated arrival time calculation device, and when the predicted value of the time required for the car to arrive at the landing in the same direction as the registered landing call is less than a predetermined value, the position indicator is displayed; A position display device for an elevator, comprising a display control circuit that prevents the position display device from displaying the above-mentioned position display device.