JPS594356B2 - Elevator landing display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for displaying the expected arrival time of an elevator at a landing.

To ride the elevator, you must press the landing button located at the landing to call the car to that floor.

A waiting passenger who presses the landing button can look at the car's expected arrival time display device installed at the landing and know how many seconds left to wait for the car to arrive.

A digital display is generally used to display the expected arrival time of the car.

However, if you want to display a value larger than 99 seconds, such as 120 seconds, which can be displayed on a 2-digit digital display, you will need a 3-digit display with at least one additional digit, which is quite expensive. becomes.

This invention solves the above-mentioned drawbacks and aims to provide an inexpensive elevator hall display device using a display with as few digits as possible.

Hereinafter, with reference to FIGS. 1 to 3, a description will be given of an embodiment in which the present invention is applied to a lower hall call on the second floor of a five-story building.

In the figure, 1a to 5a are car position signals on the 1st to 5th floors, 2b to 5a are car position signals,
5b is the down-hall call signal for the 2nd to 5th floors for the car to respond to, 10-4c is the up-hall call signal for the 1st to 4th floor for the car to respond to (in the case of one car, all the hall calls is the hall call that the car should respond to.
[-] In group-controlled elevators that are managed as a group, this corresponds to a hall call to which each car must respond.

), 1d to 5d are call signals on the 1st to 5th floors, 1e to 8
e is a scanning pulse signal as shown in Fig. 3, 2f to 5f+
1g~4gt2h~5h t1t~4i.

2j to 5J, 1h to 4h, 6a to 6b are AND gates,
7 is a downstream signal which becomes rHJ when the car is serving in the downstream direction, 8 is an upstream signal as well, 9 and 10 are OR gates, 9bC-)10a are respective output signals, 11 is a memory, 11a is its output signal, 12 is a one-shot multivibrator that outputs a pulse signal 12a with a fixed time width when the input signal changes from rHJ to "L" (hereinafter referred to as OM), 13 is reset by pulse signal 1e 14 is a gate that outputs the signal of the counter 13 when the pulse signal 12a is rHJ, 15 is a register of the gate 14 that stores the signal, and the signal 2b is "L". ”
It will be reset when

Reference numeral 16 denotes a decoder that converts the number of car stops into quantum door opening/closing time during acceleration/deceleration of the car, which needs to be changed depending on the rated speed of the car.

16a is its output signal, 17 is an OR gate, 17a is its output signal 18 is an AND gate, 19 is a counter 13
20 is a gate similar to gate 14,
21 is a register similar to the register 15, and 22 is a decoder that converts the traveling distance of the car (full speed traveling distance not including the quantum door opening/closing time during acceleration/deceleration) into time, which needs to be changed depending on the rated speed of the car.

23 is an adder that adds the output signal 16a of the decoder 16 and the output signal of the decoder 22, and the output signal is the expected arrival time of the car.

24 is a register similar to registers 15 and 21, and 25 is an input device for inputting a value that can be displayed by a display 29, which will be described later.

26 is an output signal rHJ only when the output signal (time) of the adder 23 is smaller than the output signal (time) of the input device 25.
28 is a gate that outputs the signal of the adder 23 only when the output signal of the comparator 26 is "H"; 29 is a gate that outputs the signal of the adder 23;
This is a display provided at the landing on the floor that displays the expected arrival time of the car (output signal (time) of the register 24) for a call to the second floor landing, and can display a two-digit number.

Now, the car is running down the 5th floor with the car call on the 3rd floor.
A case will be explained in which the call to which the car should respond is a call to the second floor landing.

Now, the car down direction signal 7.5th floor car position signal 5e3
The car call signal 3d on the floor is rHl.

In this state, when the second floor down-hall call signal 2b to which the car should respond becomes rHJ, the register 15°21.24 becomes valid and the AND gate 6b is also opened.

At this time, when the pulse signal 1e becomes rHJ, the memory 1
1 is set and its output signal 11a becomes rHJ.

Furthermore, since the signal 2b is at "H" at this time, the pulse signal 1e is input to the AND gate 6a via the AND gate 2h and the OR gate 10.
has been reset by the pulse signal 1e, so it does not count yet.

After that, when the pulse signal 2e is output, the pulse signal 2e becomes A
Since it is input to the counter 13 via the ND gate 3j and the OR gate 10゜AND gate) 6a, the counter 1
3 counts one pulse.

Furthermore, while the signal 11a is at rHJ, the pulse signals 2e to 8e are input to the counter 19 via the OR gate 17 and the AND gate 18, so the counter 19 counts two pulse signals 2e and 3e. Become.

In this state, when the pulse signal 4e becomes "H", the pulse signal 4e is input to the reset terminal of the memory 11 via the AND gate 5f and the OR gate 9, so the memory 11 is reset and its output signal 11a becomes rLJ.

Therefore, AND game) 6a and 18 are closed, so
Next, until the pulse signal 1e becomes "H", the counter 13
, 19 remain as they are.

Note that when the signal 11a changes from rHJ to "L", 0M1
2 emits a pulse signal, so the game N4, 2 only during that time.
0 is opened, the contents of counter 13 are stored in register 15, and the contents of counter 20 are stored in register 21.

Then, the decoder 16 calculates the number of car stops as the opening/closing time of the quantum door during acceleration/deceleration, and the decoder 22 calculates the moving distance of the car (in this case, the moving distance is calculated from the number of floors between the call and the car position).

) is converted into the running time of the car, and the respective times are added by an adder 23.

At this time, if the output signal of the adder 23 is smaller than the output signal of the input device 25, the output signal of the comparator 26 becomes "H".
Therefore, the gate 28 is opened and the output signal of the adder 23 is stored in the register 24.

The contents of the register 24 are then displayed on the display 29 as n seconds.

After that, when the pulse signal 1e becomes rHl, the counter 1
3 and 19 are reset.

Then, the process is repeated like F1.

After that, when the car travels one floor, the count number of the counter 19 decreases by one floor (one piece) from before, so the output signal (time) of the decoder 22 also decreases, and the output signal of the adder 23 also decreases. do.

Therefore, since the output signal IHj is generated from the comparator 26, the gate 28 is opened, and a smaller value than before is stored in the register 24 from the adder 23.

Therefore, the display 29 displays a shorter time than before.

However, if the car is running down the 5th floor and the 9th call at the bottom of the landing at 4 intervals is added as a call to be answered, the count number of the counter 13 will increase, so the decoder 1
The output signal 16a of the adder 23 also increases, and the output signal of the adder 23 also increases.

At this time, when the output signal of the adder 23 exceeds the output signal of the input device 25, the comparator 26 does not output an output signal "H", so the gate 28 remains closed.

That is, when the value to be displayed exceeds the value that can be displayed by the number of digits on the display 29, the display content on the display 29 is the previous maximum displayable value stored in the register 24.

The number of protrusions on the display 29 can be set to a practically optimum value.

In other words, the expected arrival time of the car depends on the performance of the elevator,
The state of distribution can be determined by the traffic conditions of buildings, etc.

Based on this distribution state, the number of digits can be determined so that most of the expected arrival times of the cars that occur can be displayed.

Until the expected arrival time of the car, which is a long time that rarely occurs,
Increasing the number of digits on the display 29 for display is not practical and would be extremely wasteful.

Thereafter, when the car responds to the call to go down the landing on the second floor, the signal 2b becomes "L", so the register 15°2L24 is reset and the display 29 returns to the initial state of 0 seconds.

In addition, when the car comes to the second floor, either set it to 0 seconds or the car will go to the second floor.
You can choose whether to set the time to 0 seconds when a person can get into the car after arriving at the floor and opening the door.

Although the above-mentioned embodiment has been described for calls going down the second floor landing, the same method can be applied to other calls as well.

In addition, in the above embodiment, the expected arrival time of the car is calculated based on the distance and the number of stops, but the probability of occurrence of other calls may be considered, and the opening/closing time of the door may be changed depending on the number of passengers inside the car or waiting at the landing. You may also use detailed information such as

In addition, as explained above, the estimated arrival time is not displayed for floors where no landing call is registered, but those floors may be displayed as having a call, or the average waiting time or longest waiting time for all landing calls may be displayed. Waiting time etc. may also be displayed.

Furthermore, the expected arrival times for both upstream and downstream directions may be switched and displayed on one display.

For example, if the up call button at the hall is pressed, the expected arrival time in the up direction is displayed until the next time the down call button is pressed.

Alternatively, if the up call button is pressed, the expected arrival time in the up direction is displayed for a certain period of time.

Alternatively, one set of display devices common to all cars may be provided on each floor.

Note that it goes without saying that the same method can be used in the case of analog display.

As explained above, in this invention, when calculating the expected arrival time of a car and displaying it at the landing, when the expected arrival time exceeds the displayable value determined by the number of digits on the display, Since the maximum value is displayed, the number of digits of the display can be set to a practically optimum number, and the structure can be constructed at low cost.

[Brief explanation of the drawing]

FIGS. 1 and 2 are block diagrams showing one embodiment of an elevator hall display device according to the present invention, and FIG. 3 is a diagram showing power signal waveforms of various parts. 1a to 5a... Car position signals for the 1st to 5th floors, 2b to 5
b...2nd floor to 5th floor landing call signal, 1c to 4c.
・・1st floor to 4th floor landing call signal, 1d to 5d...1
Floor to β floor call signal, 1e to 8e...Scanning pulse signal, 2f to 5f, 1g to 4g, 2h to 5h, 1i to 4i
, 2j-5j, lh-4h. 6b, 6b...AND gate, 7...Downward direction signal, 8...Upward direction signal, 9,10...OR gate,
11 is a memory, 12...one-shot multivibrator, 13...counter, 14...gate, 15...
...Register, 16...Dueder, 17...OR gate, 18...AND gate, 19...Counter,
20... Gate, 21... Register, 22... Decoder, 23... Adder, 24... Register, 25
...Input device, 26...Comparator, 28...Gate, 29...Display device. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. In the case where the estimated arrival time is calculated and displayed at the boarding area as a number made up of a multi-digit display, the maximum value of the above-mentioned estimated arrival time that can be displayed is determined from the number of digits on the display. an input device, a comparator that operates when the calculated expected arrival time exceeds the maximum value, and a circuit that causes the display to display the maximum value when the comparator operates. boarding area display device.