JPS6043732A - Input device for multi-digit numeric character - Google Patents

Abstract

PURPOSE:To secure a suited application to the input in the dark and to attain the divided inputs of many numeric characters for an input device for multi- digit numeric characters, by using a rotary operation element for input of numeric characters. CONSTITUTION:When numeric characters 15, 83 and 64 are fed, a switch MSW is turned on and a knob 11 is turned to produce 158 pulses from a rotary encoder 10. Then 15, 80 and 00 are displayed to a display device 14 via counters 12d-12f and numeric character display drivers 13d-13f. Then a switch LSW is turned on and the switch MSW is turned off, and the knob 11 is turned to produce 364 pulses. These pulses are counted by counters 12a-12c, and the display device 14 displays 15, 83 and 64 via numeric character drivers 13a-13c. Such a method is suited for input of numeric characters in the dark. Thus it is possible to feed easily and quickly the multi-digit numeric characters since these numeric characters can be divided into some digit groups.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a multi-digit number input device capable of efficiently inputting multi-digit numbers, and particularly to a number input device for submarine-mounted electronic equipment. This invention relates to a multi-digit number input device that is effective when a multi-digit number must be entered by groping in the dark.

Prior Art Is the numeric keypad widely used as a numerical input device?
This has the disadvantage that it is necessary to illuminate your hand in dark places, and it is difficult to input by hand. There is also a device called Screece Inochi, which inputs numbers by switching the count chronograph depending on the nodding angle of the lever and automatically increasing or decreasing the counter, but since the numbers increase or decrease automatically, it is difficult for the operator to input numbers. The drawback is that it is difficult to make fine adjustments and corrections. There is also a method of providing a digital switch for each digit, but in this case too, a nearby light is required, and since the switch position is different for each digit, it is inconvenient to operate it by groping. There is a rotary encoder that generates pulses by rotating a linked knob and counts these pulses to enter numbers.This is easy to operate and requires no fumbling input in the dark without hand illumination. suitable for However, when inputting multi-digit numbers, the amount of rotational operation becomes large due to the minimum resolution of the low-resolution encoder, which has the disadvantage of making input time-consuming. In other words, in order to be able to accurately and easily input numbers in the smallest unit, the resolution of the row reencoupling cannot be made very fine, and the resolution is limited to about 500 pulses per rotation at most. In this case, for example, to input a 5-digit number, the knob must be rotated 20 to 200 times, which is extremely time-consuming and labor-intensive. On the other hand, to input the number "1" in small units of up to 60, 1, -, - = 0.7
Fine adjustments were also difficult because the knob had to be moved by a small angle of 2 degrees. To make fine adjustments easier, the resolution must be made coarser, but this makes inputting multi-digit numbers even more difficult. As described above, the conventional number input method using rotating pulse generation and counting is suitable for inputting information by groping in a dark place, but is not very suitable for inputting multi-digit numbers.

Purpose of the Invention The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a multi-digit number input device that is suitable for groping input in a dark place and also suitable for inputting multi-digit numbers. It is something to do.

Summary of the Invention A multi-digit number input device according to the present invention includes a rotary pulse converter that outputs pulses according to a rotation angle, and an operator coupled to the rotation shaft of the rotary pulse converter to apply rotational motion. a counting means that includes a plurality of counting digits and performs a counting operation in response to the output pulses of the rotary pulse converter; a display that displays counting data of each counting digit of the counting means; The apparatus includes a switch for changing the weight of the output pulse of the rotary pulse converter, and a control circuit that transmits the output pulse of the rotary pulse converter to the counting means with the weight set by the switch. By changing the weight of the counting pulses using a switch, it is now possible to perform counting in response to pulses at a specific high-order digit or higher, and the number input can be divided into a high-order digit group and a low-order digit loop. Like can be done? bawl. In this way, it becomes possible to input multi-digit numbers by dividing them into appropriate digit groups, and of course the number of digits in each digit group becomes relatively small, so operations for inputting decimal digit numbers become possible. The amount of rotation of the child is small, making multi-digit number input operations extremely easy. Along with this, it is no longer necessary to make the resolution of the rotary pulse converter (for example, a well-known low-resolution encoder) finer, and by setting the resolution appropriately (relatively coarse), it is possible to input the minimum number. You will be able to do this stably. In addition, if the operator is rotatable and can be linearly displaced in the axial direction, and the switch is switched in conjunction with this linear displacement, multi-digit numeric input can be performed by operating only one operator. This makes it more suitable for manual operation.

Embodiment In FIG. 1, 10 is a rotary encoder as a rotary pulse converter, and an operator 11 is attached to its rotating shaft 10a.
is connected, and by manually rotating this operator (hereinafter referred to as "Jumami J") 11, the low-return encoder 10 outputs a pulse signal P according to the rotation angle. - For example, it is possible to input six decimal digits, and decimal counters 12a to 12f are provided corresponding to each digit. Each of the counters 12a to 12f is connected in cascade, and the overflow signal OV of the lower digit is applied to the count input of the upper digit. The count output of each counter 12a-12f is applied to a numerical display driver L5a-13f, and this driver output is given to the display 14. In this way, the current count value of each digit counter 12a to 12f is 10 on the display 14.
Displayed in base numbers. Further, the output of each counter 12a to 12f is supplied to a device (not shown) for utilizing the input numerical data.

The switches MSW and LSW are for switching the output pulses P of the encoder 10 to different weights, with LSW corresponding to the weight of the minus digit and MSW corresponding to the weight of the thousands digit. When one of these switches MSW and LSW is on, the other is off, and before turning on, a signal "0.11" is given to the corresponding inverter 15.16, and a signal +1111 is output from the inverter 15.16. The AND circuits 17 and 18 are for controlling the transmission of the output pulses P of the encoder 1o to the counters 12a to 12f according to the weight settings by the switches MSW and LSW, This pulse signal P is input.

When the switch LSW is on, the AND circuit 18 is enabled, and the output pulse P is inputted to the minus digit counter 12a via the AND circuit 18. In this case, the weight of one pulse of the output pulse P corresponds to "1" in decimal notation.

Rai 7 fM S Wbi off (7) c! : n, 7
') I'DOI@ 17 Ti'j is enabled, the output pulse P enters the OR circuit 19 via the AND circuit 17, and from this OR circuit 19 the thousands digit counter 12
d count input is added. In this case, the weight of one pulse of the output pulse P corresponds to [1000J in decimal notation.

In other words, the counters 12a to 12f are divided into two digit groups for every three digits, and the switch MSW selects the upper digit group 12d to 12f and selects the lowest digit (thousands place) therein. A counting pulse P is supplied, and the lower digit groups 122 to 12C are selected by the switch LSW, and the counting pulse P is supplied to the lowest digit (- digit) among them.

- As an example, the rotary encoder 10 has 1 rotation per rotation.
We will explain the case of inputting 158364J using a device that generates 00 pulses.First, turn on the switch MSW, turn the knob 11 100 times (approximately 1 revolution), and turn the low reencoater 10 to 158.
generates pulses. As a result, the counter 12d~
12f counts l'-158J, and the display 14 shows "
158000" (for convenience of explanation, it is assumed that the counters 12a to 12f have been initially reset).

Next, turn on the switch LSW (turn off the MSW), rotate the knob 11 36400 times (approximately 3 revolutions) to generate 364 pulses, and make the counters 12a to 12C count l''-364J. When 14 displays "l 58364J," you will know that you have entered the desired number.The encoder has a resolution of 100 or so, which is extremely coarse, so you can make fine adjustments to the input number very easily.In this case, you only need to turn knob 11 about 5 times in total. You can input the desired number.If you input the pulse P only to the negative digit counter 12a and perform counting, it would be 158364.

And □. o ; 1583583 rotations Since the rotation 11 has to be rotated, it is clear how efficient the present invention is.

In the example shown in FIG. 1, the overflow signal OV of the lower digit group is applied to the upper counter 12d via the OR circuit 19, but the two groups may be completely separated. That is, the output of the AND circuit 17 may be added to the count input of the counter 12d without providing the OR circuit 19.

FIG. 2 shows an example in which the knob 11 is not only rotatable but also linearly displaceable in the axial direction, and the switches MSW and LSW are switched in conjunction with the linear displacement of the knob 11. A slide groove 10b is provided on the rotary shaft 10a of the rotary encoder 10, and a protrusion provided on the shaft 11a of the knob 11 engages with this slide groove 10b, making the knob 11 rotatable and linearly displaceable. ing. Switches LSW and MSW made of riminotosinner are arranged corresponding to predetermined push-in and pull-out positions. Further, a tent mechanism 20 is provided corresponding to the pulled-out position, and when the knob 11 is pulled out a predetermined amount, the pole of the tee-tent mechanism 20 fits into the tent groove 21 of the knob 11, and the knob 11 is latched to the pulled-out position. be done. Switch MSW is turned on at this pulled out position. When the knob 11 is pushed in a little from the pulled-out position to release the detent, it becomes the knee-tral position, and neither switch LSW nor MSW is turned on in this knee-tral position.

When the knob 11 is further pushed in, the switch LSW is turned on at a predetermined pushed position. When the push-in is released, the knob 11 automatically returns to the bi-tral position by the action of the recovery spring 22. Therefore, in the pushed-in position, the knob 11 is pushed in and rotated, but in the pulled-out position, it is detented, so it is sufficient to simply rotate the knob 11.

However, this is just an example, and the design may be changed in any way. In this way, the pulse weight switching switch LSW is linked to the linear displacement of the knob 11.

By switching the MSW, multi-digit numeric input can be easily performed by rotating and linearly displacing one knob 11, making it ideal for fumbling input in a dark place.

Figure 3 shows a modification example of Figure 1, in which the switch MSW
When a predetermined upper digit group 12d to 12f is selected by
2d) is set to a predetermined value (0.2d).
5) is weighted to perform the counting operation. Weighting the pulse P to be supplied to the lowest digit (counter 12d) in the upper digit group by 0.5 means that the lower digit (counter 12C) has a weight of 1.
This means that it is sufficient to add "5" for each pulse.

Therefore, the output of the AND circuit 17 is sent to the numerical data generator 26.
, and every time one pulse is output from the AND circuit 17, the numerical data generator 26 generates data of the numerical value "5". The counter 12C is configured to be capable of both pulse counting and data addition, and a numerical take "5" is applied to the addition input of the counter 12C. In this way, when the switch MSW for selecting the upper digit groups 12d to 12f is turned on, the counter 12C is incremented by 5 every time one output pulse P of the encoder 10 is applied. For example, when entering the number [1502J, switch M S
Turn on W and turn knob 11 a little to generate 3 pulses. Enter the lucky number "], 500J, then turn switch L.
Turn on the SW and turn the knob 11 a little to generate two pulses to complete the input of the number [1502J]. In this way, according to the modification shown in FIG. 3, the number input operations for lower digit groups can be further reduced. Note that the weighting amount is not limited to [0, 51, and may be selected as appropriate.

In order to make it possible to input a larger number of digits, the number of digits to be displayed may be increased, the corresponding counter may be increased, and a switch for changing the weight of the pulse P may be added as necessary. In the example shown in FIG. 4, the display 14 has nine digits, and the decimal power of three digits is 12g~12! , and correspondingly, numeric display drivers 13g to 161 are added. A switch NSW for changing the weight of the output pulse P of the encoder 10 is added, and the digit group of the counters 12g to 12 is selected by this switch NSW.

The overflow signal OV of the counter 12f is output to the OR circuit 25.
to the count input of the counter 12g.

The AND circuit 24 is enabled when the switch NSW is turned on, selects the output pulse P of the encoder 10, and applies it to the count input of the counter 12g via the OR circuit 25.

With the above configuration, it is possible to divide a nine-digit number into groups of three digits and input them according to the switching of the switches NSW, MSW, and LSW. In this case, as in FIG. 1, the OR circuits 19 and 25 may be deleted and each digit group may be separated. It is preferable that each of the switches NSW, MSW, and LSW be switched in conjunction with the linear displacement of the knob 11 as described above. For example, in the structure shown in FIG. 2, it is possible to arrange the switch NSW so that it is turned on at the knee neutral position.

In addition, IO counters 12a to 12f corresponding to each display digit
, 12g to 121, microcomputer type counting means may be used instead of using discrete circuits.

Effects of the Invention According to the present invention, numbers are entered using a rotary operator, which is suitable for entering numbers by groping in a dark place, etc., and moreover, multi-digit numbers can be input by dividing them into several digit groups. This allows you to input multi-digit numbers easily and quickly.

[Brief explanation of drawings]

FIG. 1 is an electrical block diagram showing an embodiment of this invention.
FIG. 2 is a perspective view showing an example of the relationship between the operation knob and the pulse weighting changeover switch in the same embodiment, FIG. 3 is a block diagram showing a modification of FIG. 1, and FIG. 4 is another example of this invention. It is a block diagram showing an example. 10 ・Rotary encoder (rotary pulse converter), 1
1. Knob (operator), 12a to 121. Decimal count corresponding to each digit of decimal number, 14. Display, 17.1
8.24 AND circuit, LSW, MSW, NSW corresponding to a control circuit for switching the weighting of counting pulses
- Switch for changing the weighting of counting pulses. Applicant Hitachi Electronics Engineering Co., Ltd. Agent Yoshihito Iizuka ll, i Figure 1 M, M"? +4 ~ "T Choto] dr l IVIIW

Claims (1)

[Claims] 1. A rotary pulse converter that outputs pulses in accordance with a rotation angle, an operator coupled to the rotation axis of the rotary pulse converter to provide rotational motion, and a plurality of counting digits. a counting means for performing a counting operation in response to the output pulses of the rotary pulse converter; a display for displaying counting data of each counting digit of the counting means; and a weighting of the output pulses of the rotary pulse converter. A multi-digit number input device comprising: a switch for switching; and a control circuit for transmitting output pulses of the rotary pulse converter to the counting means with weights set by the switch. 2. The counting digits of the counting means are divided into two or more digit groups each consisting of a plurality of digits, and the switch switches the weight of the output pulse by selecting one of the digit groups, and the control 2. A multi-digit number input device according to claim 1, wherein the circuit supplies the output pulse of the rotary pulse converter to the lowest counting digit in the digit group selected by the switch. 6. When a predetermined upper digit group is selected, the control circuit weights the output pulse to be supplied to the lowest counting digit in the digit group to a predetermined value to perform a counting operation. A multi-digit number input device according to claim 2, which comprises: 4. The operator is rotatable and linearly displaceable in the axial direction, and the switch switches the weight of the output pulse in conjunction with the linear position of the operator. The multi-digit number input device according to item 1 or 2.