JPH0158531B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a multi-digit number input device that can efficiently input multi-digit numbers, and in particular, such as a number input device for an electronic device mounted on a submarine. This invention relates to a multi-digit number input device that is effective when it is necessary to input digit numbers.

Prior Art Numeric keypads are widely used as numeric input devices, but they have the disadvantage that they require illumination of the user's hand in dark places and are difficult to enter by hand. There are also devices called screw-in switches that input numbers by automatically increasing or decreasing the counter by switching the count clock depending on the tilt angle of the lever, but since the numbers increase or decrease automatically, it is difficult for the operator to input numbers. has the disadvantage that it is difficult to make fine adjustments and corrections. There is also a method of providing a digital switch for each digit, but this also requires a nearby light, and since the switch position differs for each digit, it is inconvenient to operate it by groping. There are devices that input numbers by rotating a knob linked to a rotary encoder to generate pulses and counting these pulses.This method is easy to operate and requires no manual 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 rotary encoder, which has the disadvantage that it takes time to input. In other words, the resolution of the rotary encoder cannot be made too fine in order to be able to input the smallest units of numbers accurately and easily, and the resolution is limited to about 500 pulses per rotation at most. In this case, for example, inputting a five-digit number requires rotating the knob 20 to 200 times, which is extremely time-consuming. On the other hand, in order to input the smallest unit of numbers, ``1'', the knob had to be moved by a small angle of 360/500 = 0.72 degrees, making it difficult to make fine adjustments. 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 groping input in a dark place, but is not very suitable for inputting multi-digit numbers.

Purpose of the invention This invention has been made in view of the above points,
Suitable for typing in the dark, and
The present invention aims to provide a multi-digit number input device suitable for inputting multi-digit numbers.

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 that is coupled to the rotation axis of the rotary pulse converter to give rotational motion. , contains multiple counting digits,
A counting means for performing a counting operation in response to the output pulses of the rotary pulse converter, a display device for displaying count data of each counting digit of the counting means, and for switching the weight of the output pulses of the rotary pulse converter. and a control circuit for transmitting the output pulses of the rotary pulse converter to the counting means with weights set by the switch. By changing the weight of the counting pulses using a switch, it is possible to perform counting in response to pulses at a specific upper digit or higher, and enter numbers by dividing them into upper digit groups and lower digit groups. You will be able to do this. In this way, it is now possible to input multi-digit numbers by dividing them into appropriate digit groups, and of course the number of digits in each digit group is relatively small, so the operator for inputting decimal digit numbers can be used. The number of rotations required is small, making multi-digit number input operations extremely easy. Along with this, there is no need to make the resolution of the rotary pulse converter (for example, a well-known rotary encoder is used) even finer, and by setting the resolution appropriately (relatively coarse), it is possible to stabilize the input of the minimum number. You will be able to do it. Furthermore, 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 its rotating shaft 10
A control element 11 is connected to a, and by manually rotating the control element (hereinafter referred to as "knob") 11, the rotary encoder 10 outputs a pulse signal P according to the rotation angle. As an 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 13a-13f, and this driver output is given to a display 14. In this way, the counters 12a to 12f of each digit
The current count value of is displayed on the display 14 in decimal notation. Moreover, the output of each counter 12a to 12f is
The input numeric data is supplied to a device (not shown) for use.

The switches MSW and LSW are for switching the output pulses P of the encoder 10 to different weights, LSW corresponds to the weight of the ones place, and MSW corresponds to the weight of the thousands place. This switch
When one of MSW and LSW is on, the other is off, and when it is on, the corresponding inverter 1
A signal "0" is applied to the inverters 5 and 16, and a signal "1" is outputted from the inverters 15 and 16, and is applied to the corresponding AND circuits 17 and 18. The AND circuits 17 and 18 are for controlling the transmission of the output pulse P of the encoder 10 to the counters 12a to 12f according to the weight settings by the switches MSW and LSW, and this pulse signal P is inputted thereto.

When the switch LSW is on, AND circuit 18
is enabled, and the output pulse P is output from the AND circuit 18.
The data is input to the ones digit counter 12a via the counter 12a. In this case, the weight of one pulse of output pulse P is
Corresponds to the decimal number "1".

When switch MSW is on, AND circuit 17
is enabled, and the output pulse P is output from the AND circuit 17.
enters the OR circuit 19 via
The count input of the counter 12d in the thousands digit is added. In this case, the weight of one pulse of the output pulse P corresponds to "1000" in decimal notation.

In other words, the counters 12a to 12f are divided into two digit groups every three digits, and the switches 12a to 12f are divided into two digit groups.
Upper digit group 12d to 12f depending on MSW
is selected and a counting pulse P is supplied to the least significant digit (thousands place) therein, and the lower digit groups 12a to 12c are selected by the switch LSW and the least significant digit (ones place) is selected. A counting pulse P is supplied to the

As an example, the rotary encoder 10 is one that generates 100 pulses per rotation,
The case where "158364" is input will be explained. First, turn on the switch MSW, turn knob 11 158/100 turns (about 1 and a half turns), and turn rotary encoder 10.
Generate 158 pulses from As a result, counters 12d to 12f count "158",
The display 14 displays "158000" (for convenience of explanation, it is assumed that the counters 12a to 12f have been initially reset). Next, the switch LSW is turned on (MSW is turned off), the knob 11 is rotated 364/100 times (approximately 3 and a half revolutions) to generate 364 pulses, and the counters 12a to 12c are made to count "364".
In this way, when the display 14 displays "158364", it is known that the desired number has been input. Since the resolution of the encoder 10 is extremely coarse, fine adjustments to input numbers can be made extremely easily. In this case, knob 11
You can enter the desired number by rotating the button a total of about 5 times. If we input pulse P only to the ones digit counter 12a and perform counting,
Since the knob 11 must be rotated by 158364/100≒1583 rotations, 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. In other words, the OR circuit 19 may not be provided, and only the output of the AND circuit 17 may be applied to the count input of the counter 12d.

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. Rotary shaft 10 of rotary encoder 10
a is provided with a slide groove 10b, and the protrusion provided on the shaft 11a of the knob 11 fits into this slide groove 1.
0b, the knob 11 is rotatable and linearly displaceable. Switches LSW and MSW consisting of limit switches are arranged corresponding to predetermined push-in and pull-out positions. In addition, the day tent machine groove 20 corresponds to the pull-out position.
is provided, and when the knob 11 is pulled out by a predetermined amount, the ball of the detent machine groove 20 fits into the detent groove 21, and the knob 11 is latched at the pulled out position. The switch MSW turns on in this pulled out position. Knob 1 from the drawer position
If you press 1 a little to release the day tent, it will be in the neutral position, and in this neutral position, neither the LSW nor the MSW will turn on. When the knob 11 is further pushed in, the switch LSW is turned on at a predetermined pushed position. When you release the push,
The knob 11 automatically returns to the neutral position by the action of the recovery spring 22. Therefore, in the pushed-in position, the knob 11 is rotated while being pushed in, 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, in conjunction with the linear displacement of the knob 11, the pulse weight switching switch LSW,
If you make the MSW switch, one knob 1
Multi-digit numeric input can be easily performed with only the rotation and linear displacement operations of 1, making it ideal for fumbling input in a dark place.

Fig. 3 shows a modification example of Fig. 1, in which a predetermined upper digit group 12d is
When ~12f is selected, the pulse P to be supplied to the lowest digit (counter 12d) in the digit group is weighted to a predetermined value (0.5 in this example) to perform counting operation. It is. The lowest digit in the upper digit group (counter 12d)
Weighting the pulse P to be supplied to 0.5 means that it is sufficient to add "5" to the lower digit (counter 12c) for each pulse. Therefore, the output of the AND circuit 17 is input to the numerical data generator 23, and every time one pulse is output from the AND circuit 17, the numerical data generator 23
The data of numerical value "5" is generated from. counter 1
2c is configured to be capable of both pulse counting and data addition, and the numerical data "5" is set to the counter 1.
It is given to the addition input of 2c. In this way, the switch MSW selects the upper digit groups 12d to 12f.
is turned on, the counter 12c increases by 5 every time one output pulse P of the encoder 10 is given.
will be added. For example, to input the number "1502", turn on the switch MSW and slightly turn knob 11 to generate 3 pulses, the number "1500" will be input, then turn on the switch LSW and turn knob 1.
Turn 1 a little and generate 2 pulses to complete inputting the number "1502". 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 "0.5" and may be selected as appropriate.

In addition, to make it possible to input numbers with even more digits,
The number of display digits may be increased, the counter corresponding thereto may be increased, and a switch for changing the weight of the pulse P may be added as necessary. In the example in Figure 4,
The display 14 has 9 digits, and the 3-digit decimal counter 1
2g to 12i are added, and correspondingly, numeric display drivers 13g to 13i are added. A NSW is added as a switch to change the weight of the output pulse P of the encoder 10, and this switch
Select the digit group of counters 12g to 12i by NSW. The overflow signal OV of the counter 12f passes through the OR circuit 25 to the counter 12g.
is given to the count input. AND circuit 24
is enabled when switch NSW is turned on,
The output pulse P of the encoder 10 is selected and applied to the count input of the counter 12g via the OR circuit 25. With the above configuration, switch NSW,
A nine-digit number can be divided into groups of three digits and input by switching between 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 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 Figure 2,
It is possible to arrange the switch NSW so that it is turned on in the neutral position.

In addition, the decimal counter 12a corresponding to each display digit
As 12f, 12g to 12i, microcomputer type counting means may be used instead of using discrete circuits.

Effects of the Invention According to the present invention, since numbers are entered using a rotary operator, it 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 one embodiment of this invention, FIG. 2 is a perspective view showing an example of the relationship between the operating knob and the pulse weighting switch in the same embodiment, and FIG. 3 is the same as that shown in FIG. FIG. 4 is a block diagram showing another embodiment of this invention. 10...Rotary encoder (rotary pulse converter), 11...Knob (operator), 12a to 12i
... Decimal counter corresponding to each decimal digit, 14...
...Display device, 17, 18, 24...AND circuit corresponding to a control circuit for switching the weighting of the counting pulse, LSW, MSW, NSW...Switch for switching the weighting of the counting pulse.

Claims (1)

[Claims] 1. A rotary pulse converter that outputs pulses in accordance with a rotation angle, an operator coupled to a rotation shaft 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 device for displaying counting data of each counting digit of the counting means, and switching the weight of the output pulses of the rotary pulse converter. 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 circuit 2. A multi-digit number input device according to claim 1, wherein said switch supplies the output pulse of said rotary pulse converter to the lowest counting digit in the digit group selected by said switch. 3. The control circuit includes means for weighting the output pulse to be supplied to the lowest counting digit in the digit group to a predetermined value when a predetermined upper digit group is selected to perform a counting operation. A multi-digit number input device according to claim 2, which includes: 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. 2. Multi-digit number input device according to item 1 or 2.