JPH0258195B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator display device.

Conventionally, elevator display devices include those that display numbers and symbols engraved on an acrylic cover by lighting, and those that use seven segments or dot matrix to display various types of displays.

However, these devices only serve to indicate floors and driving directions.

The present invention not only displays characters, numbers, and symbols, but also allows display contents to remain stationary.
In the case of floor markings that require accurate reading of the displayed content, the displayed content should be kept still to make it easier to read the displayed content. In the case of a direction display such as a driving direction where it is more important to understand the indicated direction than to read it accurately, the movement and status of the elevator can be monitored by moving or stopping the displayed content in the indicated direction of the direction display. The object of the present invention is to provide a display device that allows elevator passengers to make quick and accurate decisions.

Examples of the present invention will be described below.

Figure 1 a, b, and c are elevator car position display devices installed inside the car or at the landing, where the first digit is used to display the direction of the elevator, and the second and third digits are used to display the elevator floor. This is an example in which only the first digit is moved in the vertical direction (upward in the figure) in accordance with the traveling speed of the elevator.

Figures 2a, b, and c are the first car display devices installed at the landing of the group control elevator.The first and second digits are linked and moved to the left, and the third digit is the first car displayed. This shows the car numbers, and the figure shows that the car on the left side is the starting car.

FIG. 3 is a diagram showing the configuration of an embodiment of the present invention. In the figure, 1 is a display consisting of a 5x7 dot matrix, and has 5 columns each consisting of 7 display elements.The display control device 2 dynamically lights up each column one by one. The cycle is determined by the output signal 5 of the oscillation circuit 4. Also,
The display control device 2 reads display data of a column corresponding to the dynamic lighting cycle from the display storage device 3 and outputs it to the display 1. Note that display data is set and stored in the display storage device 3 by an elevator control device (not shown).

FIG. 4 is a detailed block diagram of the display control device 2. 6 is a first counter which counts the output signal 5 of the oscillation circuit 4, and is reset to "0" the instant the count value reaches "5".
A decoder 7 decodes the output 6a of the first counter 6, and the output sequentially drives each column of the display 1. Reference numeral 8 denotes a drive cycle register in which the count value of the output signal 5 of the oscillation circuit 4 corresponding to the movement cycle when moving the display contents of the display 1 vertically or horizontally is written from the elevator control device. 9
The output 5 of the oscillation circuit 4 is counted down by the second counter and the moment it reaches "0", or at the same time as it is preset by the output 8a of the movement cycle register 8 by the start signal from the elevator control device, the movement command signal 9a is sent. Output.

Reference numeral 10 denotes a control register in which control data is set and stored from the elevator control device, including the presence or absence of vertical movement of display contents, the distinction between vertical movement, the presence or absence of horizontal movement, and the distinction between horizontal movement.
Output as 0b, 10c, 10d. 11,1
2 and 13 are AND circuits, 14 is an OR circuit, and 15 is an inverter. 16 is the minimum address register,
Reference numeral 17 denotes a maximum address register, in which the minimum and maximum addresses of the display storage device 3 corresponding to the display contents to be displayed in each digit of the display 1 are set and stored by the elevator control device when there is horizontal movement. 18 is the first multiplexer, and when there is no horizontal movement of the display contents, the display digit setting address set in advance (the display control device in the first digit is "0", the display control device in the second digit is "0") "5" and "10" for the third digit display control device) is selected and there is left/right movement, the display digit setting address is selected only when the start signal pulse is input, and then the second The output 19a of the multiplexer 19 is selected. The second multiplexer 19 selects the output 16a of the minimum address register 16 when the display content moves to the left, and selects the output 17a of the maximum address register 17 when the display content moves to the right, according to the left/right movement discrimination signal 10d. is selected and output to the first multiplexer 18.

20 is a first comparison circuit, and a third counter 21
when the output 21a of the third multiplexer 2 is greater than the output 17a of the maximum address register 17.
2, output 20a is generated. Reference numeral 23 denotes a second comparator circuit which outputs an output 23a to the third multiplexer 22 when the output 21a of the third counter 21 is smaller than the output 16a of the minimum address register 16. The third multiplexer 22 selects the output 20a of the first comparison circuit 20 when the display content moves to the left according to the left/right movement discrimination signal 10d;
When moving to the right, output 2 of the second comparison circuit 23
3a and outputs a preset signal 22a to the third counter 21 via the OR circuit 14.

The third counter 21 is from the elevator control device.
The start signal sent via the OR circuit 14 or the preset signal 22a sent from the third multiplexer 22 causes the first
is preset at the output 18a of the multiplexer 18. Further, the movement command signal 9a sent via the AND circuit 12 is converted into a left/right movement discrimination signal 1.
Count up or down according to 0d.

24 is a first addition circuit that adds the output 6a of the first counter 6 and the output 21a of the third counter 21, and outputs the result 24a to the subtraction circuit 25. The subtraction circuit 25 is connected to the maximum address register 17.
The output 26a obtained by adding "1" to the output 17a of the second addition circuit 26 is subtracted from the output 24a,
The result 25a is outputted to the third addition circuit 27,
Further, a signal 25b indicating whether the result of subtraction is positive, negative, or "0" is sent to the fourth multiplexer 2.
Output to 8.

The fourth multiplexer 28 receives the signal 25b.
When is negative, the output 26a of the second adder circuit 26 is output to the third adder circuit 27, and when it is positive or "0", the output 16a of the minimum address register 16 is output to the third adder circuit 27. .

The third addition circuit 27 receives the result 2 of the subtraction circuit 25.
5a and the output 28a of the fourth multiplexer 28, and the result 27a is added to the interface 2.
Output to 9. The interface 29 outputs the output 27a of the third addition circuit 27 to the display storage device 3 as an address instruction output in the display storage device 3 when the display storage device 3 is accessible. A preset signal 29a is output to the fifth counter 30 and the 8-bit shift register 31 at the timing when the read data 3a of the designated address is established. The 8-bit shift register 31 is preset with the read data 3a by this preset signal 29a.

A fourth counter 32 counts up the output of the AND circuit 11 and is preset to "0" when the count value reaches "8" or when the start signal is input.

33 is a second oscillation circuit which generates a clock signal 33a having a cycle sufficiently shorter than that of the oscillation circuit 4, and outputs it to the fifth counter 30.

The fifth counter 30 is preset at the output 32a of the fourth counter 32 by the preset signal 29a from the interface 29, and set to "0" by the clock signal 33a of the second oscillation circuit 33.
The clock signal 30a is counted down until it reaches "0" and outputs the clock signal 30a to the 8-bit shift register 31.

The 8-bit shift register 31 outputs the vertical movement discrimination signal 10 as many times as the clock signal 30a.
Shift operation is performed one bit at a time upward or downward according to b. At this time, in the upward direction, the 8th bit is input to the 1st bit, and in the downward direction, the 1st bit is input to the 8th bit, and so on. Also, at the time the data is preset, the eighth bit is preset to "0".

The outputs of the first to seventh bits of the 8-bit shift register 31 are the outputs of the 7th bit of each column of the display 1.
The signal is connected to each display element in order and becomes a drive signal.

Next, the operation of this embodiment will be explained with reference to FIG. FIG. 5a shows the arrangement of the display elements of the display device 1, and FIG. 5b shows the address of the display storage device 3. In the following explanation, the first digit display will be described.

First, a case will be described in which the display content on the display 1 does not move vertically or horizontally. At this time,
The display digit setting address is set to "0", the minimum address is set to "0", and the maximum address is set to "4".

The rows of the display 1 (a0 to a4 in FIG. 5) are driven sequentially via the first counter 6 and decoder 7 according to the cycle of the output signal 5 of the oscillation circuit 4. Since there is no movement of the display contents, the output 21a of the third counter 21 is the set value of the display digit setting address "0", so the output 24a of the first addition circuit 24 is the same as the output 6a of the first counter 6. They become the same and are input to the subtraction circuit 25. Here, since the maximum address is "4", the output 26a of the second adder circuit 26 is "5". On the other hand, since the output 24a of the first adder circuit 24 is one of "0" to "4", the signal 25b of the subtraction result is always negative, so the output 28a of the fourth multiplexer 28 is one of "0" to "4". This is the same as the output 26a of the adder circuit 26.
Therefore, in the third adder circuit 27, the output 24a
The result of subtracting 26a from 25a is the output 26a.
As a result, the result 27a is
It coincides with the output 24a of the first adder circuit 24 and is input to the display storage device 3 via the interface 29.

Therefore, when the 0th column of the display device 1 is driven, the contents of the address of the 0th column in the display storage device 3 are input to the 8-bit shift register 31 as read data 3a, and the contents are input to the 8-bit shift register 31 as read data 3a.
Preset by . The interface 29 also outputs a preset signal 29a to the fifth counter 30, but at this time, since the output 32a of the fourth counter 32 is "0", the output 30a of the fifth counter 30 is also "0". '', and the 8-bit shift register 31 does not perform a shift operation.

As a result, the content of the address in the 0th column is displayed in the 0th column of the display 1, and the contents of the address in the 0th column are displayed in the same way.
The contents of the addresses in the first to fourth columns are sequentially displayed in columns 1 to 4, and this operation is repeated thereafter.

The above explanation is for the case where display 1 is the first digit, but when it is the second digit, the address contents are from the 5th to 9th columns, and when it is the 3rd digit, the address contents are from the 10th to 14th columns. The contents of the second address are displayed in the same way as above.

Next, a case will be described in which the display content on the display 1 moves in the vertical direction. The driving of the column is the same as above, and the difference from the above is that the periodic signal of the display contents (the count value of the output signal 5 of the oscillation circuit 4) is inputted from the movement period register 8 to the second counter 9 as the output 8a. The point is that there is. Therefore, the second counter 9 starts counting down from the value instructed by the output 8a of the movement period register 8, and when the count value reaches "0", the movement command signal 9a is set to 1.
The count value is output twice, and the count down from the count value is repeated thereafter.

When the movement command signal 9a is not output, the display 1 displays the same information as above. When the movement command signal 9a is output once, that is, the fourth counter 32
When the output of ``1'' becomes ``1'', interface 29
The preset signal 29a from the fifth counter 3
0, the fifth counter 30
Since the clock signal of the oscillation circuit 33 is used to count down once, the output 30a becomes "1" and is output to the 8-bit shift register 31. As a result, the 8-bit shift register 31 shifts the read data 3a once upward or downward in accordance with the vertical movement discrimination signal 10b.
Therefore, the display contents of the display device 1 are stored in the display storage device 3.
The content of the address within is shifted up or down by one line and displayed. Similarly, each time the movement command signal 9a is output, the display is sequentially shifted to 2nd and 3rd rows, and the displayed content moves upward or downward. Furthermore, as already explained, since the 8-bit shift register performs a rotating operation, the display contents of the display 1 also perform a rotating operation. For example, when the display content moves upward, the display content in the top row is then displayed in the bottom row. Note that the rotation operation may not be performed if necessary.

Thirdly, a case will be described in which the display content on the display 1 moves in the left-right direction. First, a case will be described in which the display content of the first digit of the display 1 moves to the left. At this time, the display digit setting address is set to "0", the minimum address is set to "0", and the maximum address is set to "9".

When a start signal is output from the elevator control device, this signal is inverted by the inverter 15 and the gate of the AND circuit 13 is closed, so that the output 18a of the first multiplexer 18 becomes "0" and the start signal is The signal is OR circuit 14
The third counter 21 is preset to the value "0" of the output 18a. Further, the second multiplexer 19 outputs the minimum address "0" to the first multiplexer 18, and the third multiplexer 22 operates to select the output 20a of the first comparison circuit 20.

If the movement command signal 9a is not output, the contents of the addresses in the 0th to 4th columns in the display storage device 3 are displayed in the 0th to 4th columns of the display 1, as explained at the beginning. be done.

When the movement command signal 9a is output once, the output of the third counter 21 becomes "1", and the output 6a of the first counter 6 is incremented by "1" by the first adding circuit 24. The output becomes the output 24a and is input to the subtraction circuit 25. By the way, the second addition circuit 2
Since the output 26a of 6 is "10", the output 26a of the output 2
When 4a is "9" or less, the output 24a and the output 27a are the same, as in the case described first. Therefore, in the 0th column of the display 1, the 1st
The contents of the address in the column are displayed. Similarly, the first
Since the contents of the second to fifth columns of the address are sequentially displayed in the to fourth columns, the displayed contents are shifted one column to the left. Similarly, the movement command signal 9
Each time a is output, the output 21a of the third counter 21 increases by "1", and the display contents of the display 1 are shifted to the left one column at a time.

When the output 21a of the third counter becomes "6", the output 24a becomes a value between "6" and "10". Output 2
When 4a becomes "10", the result of the subtraction circuit 25 becomes "0", so the output 2 of the third addition circuit 27
7a becomes "0", and the contents of the addresses of the 6th to 9th and 0th columns of the display storage device 3 are displayed in the 0th to 4th columns of the display 1, and the displayed contents similarly move to the left. I will do it. Further, when the output 21a of the third counter 21 becomes "10", the first comparison circuit 20
, the third multiplexer 22 and the OR circuit 1
4, the third counter 21 outputs the preset signal via the output 18 of the first multiplexer 18.
preset to a.

In this case, since there is no input pulse of the start signal, the output 18a of the first multiplexer 18 has the minimum address set value "0", so the third counter 21 is preset to "0" and is returned to the above-mentioned state. Repeat the action.

When the display content moves to the right, the setting values of the display digit setting address, minimum address, and maximum address are the same as when moving to the left, and the third counter 21 is set every time the movement command signal 9a is output. counts down, and when its output 21a becomes smaller than the minimum address setting value "0", the second
The comparator circuit 23 outputs an output 23a, and the third counter 21 is preset to the maximum address set value "9" and starts counting down again. Therefore, in the case of the leftward movement described above, the displayed content moves rightward, conversely.

Next, if the display of the first and second digits on Display 1 is linked, the setting value of the display digit setting address will be "0" for the first digit and "5" for the second digit. , the minimum address setting values are both "0" and the maximum address setting values are both "9", and the operation is the same as that already explained, so a detailed explanation will be omitted.

Note that the present invention is not limited to the above-mentioned embodiments, and it is also possible to flicker the displayed content or move the displayed content in the vertical direction and horizontal direction at the same time. You can also link the contents. Furthermore, the movement period of the displayed content can be made variable according to the speed and state of the elevator, such as the opening/closing state of the door, or the movement of other elevators installed in parallel. In addition, when displaying the driving direction, the direction display may also be stopped when the car is stopped, and the moving speed of the direction display may be changed depending on the speed of the car, or if multiple cars are installed side by side. In such a case, when first indicating the direction in which the departing car exists, the moving speed of the direction display may be increased as the departure time of the departing car approaches.

As explained above, according to the present invention, in addition to simply displaying characters and numbers, the displayed content is divided into those that remain stationary and those that are moved and stopped, and when the displayed content is moved. Since various displays are moved independently or in conjunction with each other according to the movement and status of the elevator, it is possible to provide an elevator display device that allows passengers to quickly and accurately judge the operating status of the elevator.

[Brief explanation of the drawing]

FIGS. 1a, b, and c are views showing an embodiment of the car position display device according to the present invention; FIGS. 2a, b, and c are views similarly showing an embodiment of the preceding car position display device; and FIG. 4 is a detailed block diagram of the display control device, FIG. 5a is a diagram showing the arrangement of display elements of the display, and FIG. 5b is a diagram showing the addresses of the display storage device. It is. DESCRIPTION OF SYMBOLS 1... Display device, 2... Display control device, 3... Display storage device, 4... Oscillation circuit, 6, 9, 21, 30, 32
...Counter, 7...Decoder, 8...Movement period register, 10...Control register, 16...Minimum address register, 17...Maximum address register, 18,1
9, 22, 28... multiplexer, 20, 23...
Comparison circuit, 24, 26, 27... Addition circuit, 25...
Subtraction circuit, 29...Interface, 31...8-bit shift register, 33...Second oscillation circuit.

Claims (1)

[Scope of Claims] 1. An elevator control device that controls one or more elevators, and a display device that includes a plurality of indicators such that the indicator configured by a dot matrix constitutes one display digit. A display storage device in which display data is set by the elevator control device; the display data of the display storage device is read, and the display content of the display device is changed to indicate a floor according to the output of the elevator control device. etc., the display content remains static, and when the display content of the above display is a direction display such as driving direction, each display digit that displays the direction is independently or linked, and the display content of the above display is fixed. An elevator display device characterized in that each of the display devices is provided with a display control device that controls the display device to move display content in a designated direction or to stop the movement of the display device. 2. The elevator display device according to claim 1, wherein the movement period of the display contents is variable.