JPS63250724A - Numerical value setting mechanism - Google Patents

Abstract

PURPOSE:To set up many set values in a wide range over many digits only by the operation of one knob by adding an increment outputted from a ROM at every generation of a pulse attended with the rotation of the control and displaying the added value as a new set value. CONSTITUTION:When the control 1 is rotated, pulses corresponding to the angle of the rotation are generated and inputted to an adder 2. The adder 2 adds a set value increment DELTAD outputted from a ROM 3 at every generation of a pulse and calculates a new set value D=D+DELTAD. The output is inputted to the adder 2 itself and inputted also to a ROM 3 and a display device 4. The ROM 3 stores function values D and DELTAD set up so that the increment DELTAD to be increased/decreased correspondingly to the set value D is changed along a previously designed curve. Consequently, the output of the adder 2, e.g. a set value displayed on the display part, is slightly increased/decreased when the value D is small, and in the case of a large value D, the set value is sharply increased/decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to a numerical value setting mechanism used in combination with equipment and the like.

[Conventional technology and its problems]

As a mechanism for setting a numerical value on a device using a knob, there is a conventional method in which a pulse is supplied to a counter as the knob rotates, and the output of the counter is set to the set numerical value.

In this method, when setting a multi-digit numerical value, the knob must be turned many times, which is time-consuming and inefficient.

For this reason, conventionally the most advanced method was to use a switch to select the digit of the desired numerical value.

However, with this method, in order to change the setting value over multiple digits, it is necessary to select the digits using a switch.
Since the operation becomes complicated, it is not suitable when it is desired to dynamically change set numerical values.

Means for Solving Problem C] The present invention eliminates these drawbacks and provides a means for efficiently setting numerical values only by operating the knob. Increment Δ according to the set value
an adder that adds D and outputs a new set value D=D+ΔD, and the output is input as the set i value; a display unit that is supplied with the output of this adder (D=D+ΔD); and an adder. It consists of a fixed storage device (read-only memory) to which the output (D = D + ΔD) is supplied, a predetermined functional relationship f is stored, and the output ΔD = f (D) is supplied as an increment to the adder. This is what I did.

[Effect]

When the knob is turned, a number of pulses corresponding to the rotation angle are generated and are input to the adder. The adder calculates D=D+ΔD by adding the increment ΔD output from the fixed storage device to the set value for each pulse, and repeats the process of inputting it to the adder itself, the fixed storage device, and the display section. .

In the fixed storage device, the functional relationship f is stored in advance as ΔD=f (D
) is stored as.

By setting this functional relationship f in advance according to the purpose, it is possible to provide arbitrary operability.

If a function value that satisfies f (D) = D + 1 as a function relationship f is stored in a fixed storage device, for example, it is only necessary to generate seven pulses for the set value to change from 0 to 127. A wide range of multi-digit setting values can be set or changed efficiently.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.
・ Figure 1 is a block diagram showing one embodiment of the numerical value setting mechanism that is applicable to the present invention. When a knob <1) is turned, a number of pulses corresponding to the rotation angle (including cases of multiple rotations) are generated. and is input to the adder (2). This adder (
2) is a fixed storage device (read-only memory, hereinafter referred to as ROM) according to the set value for each of the above-mentioned pulses.
(Add the set numerical value increment ΔD output from step 11 to calculate a new set numerical value D−D+ΔD. This output is added to the adder (2
) itself, as well as ROM +31 and display (
4) Enter.

ROM (3) stores function values of D and ΔD such that the set numerical value increment ΔD, which increases or decreases in response to the set numerical value, changes along a pre-planned curve as shown in Figure 2. .

With this configuration, the output of the adder (2),
That is, the set value displayed on the display section (4) increases or decreases in small increments when the set value is small, and increases or decreases significantly when the set value is large.

FIG. 3 is a block diagram showing another embodiment. In this example, the ROM (31) is divided into a plurality of areas in advance, as illustrated in FIG. Set value increment ΔD that increases or decreases in response to the set value
However, the function values of D and ΔD that are changed along a pre-planned curve (including a linear curve) are stored, and the area is divided based on the rotation speed of the knob (11). The rotational speed of the knob (1) is detected by the speedometer (fi) and inputted to the ROM (3), and the ROM (3) selects one of the plurality of areas based on this signal.
From the input from the adder (2) that is input at the same time, ΔD corresponding to D in that area is read out and becomes an input to the adder (2). At this time, the higher the rotation speed of the knob, the larger the region (R in FIG. 4) in which the change in increment ΔD is, and the lower the rotation speed, the smaller region (P in FIG. 4) is selected. Therefore, the output of the adder (2), that is, the set value on the display section (4) changes extremely rapidly when the rotation speed of the knob (11) is high.
When it is slow, it will change slowly.

With this configuration, the output of the adder (2),
In other words, the setting value displayed on the display section (4) is set using the knob (1).
When the rotation speed is high, it changes rapidly, and when it is slow, it changes slowly.

In the conventional mechanism, the size of the set value increment must be selected by switching a switch, and since the set value increment is constant within the area corresponding to one switch, even if the rotation speed of the knob is increased, it will not change proportionally. It was just a change in the set value.

In this example, the knob (11
If you turn it quickly, the set value will change much more rapidly in large increments along the curve, and if you turn it slowly, it will change slowly in small increments, making it easier to make fine adjustments. is also a change over the entire set value range.

Also, human psychology means that if you want to change a setting value quickly, you turn the knob quickly, and when you want to make a fine adjustment, you naturally turn the knob slowly, so this kind of mechanism is perfect for human nature in terms of handling. This is an extremely effective mechanism.

In addition, in general, the numerical value setting mechanism itself is not used alone, but is constructed as a part of the equipment, and the above-mentioned knobs and switches are usually built into the equipment body. It is not uncommon for the area these can occupy to be restricted due to their size. In situations like this, being able to completely eliminate switches and use just one knob is actually a huge benefit.

Incidentally, since modern equipment without exception has some kind of computer mechanism built into it, operations such as those shown in the diagram above, such as storing and reading out a value using a ROM, addition using an adder, and each element of the result can be performed. All commands and the like can be executed by the program settings of the built-in computer, and there is a remarkable advantage that the effect can be improved without substantially changing the structure of the device.

[Effects of the Invention] As described above, according to the present invention, it is possible to efficiently set or change setting values over a wide range of multiple digits by operating only one knob without using a changeover switch, which improves work efficiency. In addition to improvements in performance, there is a structural advantage in that the switch can be completely eliminated and only one knob is needed, which saves space and weight on the device, making the device more compact.Furthermore, it takes advantage of the built-in computer in the device. It can be expected to have significant structural and design effects, such as allowing a series of functions to be performed on behalf of the user without adding new equipment, and will greatly contribute to the development of equipment.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an example in which the present invention is applied, Fig. 2 is a curve representation of a function stored in the fixed storage device (ROM), Fig. 3 is a block diagram of the other side, and Fig. 4 is a block diagram showing an example in which the present invention is applied. It is a curve display diagram of a function stored in the fixed storage device (ROM). (1) is a knob, (2) is an adder, (3) is a fixed storage device (ROM), [4] is a display, and (5) is a speedometer.

Claims (1)

[Scope of Claims] 1. An adder that adds an increment to a set numerical value for each pulse caused by rotation of a knob and outputs a new set numerical value, and the output thereof is input as the set numerical value; a display section to which the output of the adder is supplied; a display section to which the output of the adder is supplied; a functional relationship of settings is stored so that the output value changes as the input value changes; and the output is displayed as the increment; and a fixed storage device supplied to the adder. 2. The function value to be stored in the fixed storage device is divided into a plurality of regions, and the function changes in each region are set and stored so as to be independent of each other, and the rotational speed of the knob is detected by a speedometer. As an input to a fixed storage device, one of the plurality of regions is selected as an input to a fixed storage device, and one of the plurality of regions is selected such that the higher the speed, the larger the function change, and the lower the speed, the smaller the region. 2. The numerical value setting mechanism according to claim 1, wherein an output corresponding to the supplied input value is supplied to the adder as an increment of the set numerical value.