JP4003560B2 - Numerical adjustment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for adjusting a numerical value displayed by a user, such as a measurement control device or a portable information terminal.
[0002]
[Prior art]
In a measurement control device or the like, in order for a user to specify a numerical value, some input / adjustment mechanism operated by the user is required. For example, in the case of a device that digitally displays numerical values, one of the simplest configurations for the user is an input switch for inputting numerical values from 0 to 9, and other necessary symbols such as a decimal point and operations such as left and right movements. Are provided independently. However, this requires a considerable number of input switches and corresponding input circuits, which increases the cost. Therefore, there is a possibility that an excessive cost is required as compared with the necessity of numerical adjustment operation in the apparatus. Also, since more than ten input switches require a corresponding installation area, the panel design of the device may be limited.
[0003]
Therefore, as another configuration for adjusting the numerical value, a configuration in which two input switches each corresponding to increase / decrease in the numerical value or a rotary encoder in which the rotation direction corresponds to increase / decrease in the numerical value has been devised. . The former increases the numerical value by the minimum unit when one switch is pressed, and decreases the numerical value by the minimum unit when the other switch is pressed. The latter increases the numerical value by a minimum unit when rotated to a predetermined amount on one side and decreases the numerical value when rotated in the opposite direction.
[0004]
However, with these configurations, when trying to adjust the value to a value that is significantly different from the currently specified value, the number of times the switch is pressed and the amount of rotation of the rotary encoder are increased, which takes a lot of time and effort. . Therefore, in these configurations, if the switch is kept pressed, the unit for displacing the numerical value is increased, or if the rotary encoder is rotated at a high speed, the displacement is larger than proportional to the rotational speed. Improvements have been made to make the displacement speed variable.
[0005]
[Problems to be solved by the invention]
However, in the configuration in which the speed is variable, for example, in the case of a rotary encoder, it is necessary to continue to rotate as fast as possible in order to keep the numerical value greatly displaced. It was necessary to perform a seemingly contradictory operation of continuing high-speed rotation and stopping at an appropriate point. If it continues to rotate and the numerical value goes too far, it is known that the rotary encoder must be rotated again in the reverse direction at a high speed and stopped at an appropriate place, so the user's psychological burden on the operation is also great. .
[0006]
The present invention provides a numerical value to which a user is currently assigned a numerical value when, for example, a single rotary encoder is used instead of a numerical value input switch by reducing the number of parts in an apparatus in which the user needs to adjust the numerical value. Numerical adjustment that enables efficient operation to adjust to a value significantly different from apparatus It is an issue to provide.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of these problems, and is an apparatus for adjusting a displayed numerical value, including display means for displaying an adjustment target numerical value as a digital numerical value or an analog numerical value, an increase / decrease direction, and an amount of change. And input means for converting the input increase / decrease direction and the input change amount into a displacement amount of the adjustment target numerical value and reflect it in the adjustment target numerical value, and the conversion means includes a unit amount of displacement. Alternatively, the product of the input change amount and the unit amount of displacement becomes positive or negative according to the input increase / decrease direction as a displacement amount, and when the input change amount exceeds a predetermined value, the unit amount of the displacement is When the state where the input change amount can be regarded as 0 continues for a predetermined period, the unit amount of the displacement is set to the minimum value, and the unit amount of the displacement is maintained when the input increase / decrease direction is switched. As well as, Add the displacement to the adjustment target value The numerical adjustment device characterized by this is proposed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Numerical adjustment according to the present invention apparatus In this case, the numerical value displayed on the display device is adjusted by the user by increasing / decreasing it with an input means such as a rotary encoder. The information input by the input means is converted and reflected in the numerical value change. The conversion method is as follows. First, the information input by the input means is converted into information on the direction of increase or decrease with respect to the adjustment target numerical value and information on the speed with respect to the change in the numerical value. For example, if the input means is a rotary encoder, the increase / decrease direction is the direction in which the rotary encoder rotates, and the speed is the rotational speed at which the rotary encoder rotates. On the other hand, a unit for displacing the adjustment target numerical value is determined in advance. If the numerical value to be adjusted is an integer in decimal notation, the unit amount of displacement is generally set to 1, 10, 100,... According to the digit of the numerical value to be displayed.
[0009]
Further, the rotational speed of the rotary encoder is similarly divided according to the level of the unit amount of displacement. Each time the measured rotational speed of the rotary encoder exceeds the level, the unit amount of the displacement is increased, for example, 1, 10, 100, for example. Here, the unit amount of the displacement once increased is not decreased unless the rotational speed of the rotary encoder becomes a state that can be regarded as 0 continuously for a certain period.
[0010]
That is, instead of making the amount of change in the input means proportional to the displacement of the numerical value to be adjusted, the change in the amount of change in the input means is used for switching the unit amount of the displacement of the numerical value to be adjusted. Thereby, basically, even if the amount of change in the input means is the same, the numerical value to be adjusted can be increased or decreased by different unit amounts of displacement. Of course, it is also possible to employ a configuration in which the amount of change in the input means is further proportional to the unit amount of displacement and used as an element that causes a larger displacement. Further, when the rotation direction of the rotary encoder is switched, the unit amount of displacement of the numerical value to be adjusted is not decreased if the rotation speed is switched without continuously becoming 0 during the switching.
As the input means, a joystick, a dial, a mouse, a mouse wheel or the like can be used in addition to the rotary encoder. In the case of a joystick, the increase / decrease direction is the operation direction with respect to the stick, and the change amount is the magnitude of the operation with respect to the stick. In the case of a dial, the increase / decrease direction is the rotation direction of the dial, and the amount of change is the rotation angle from the reference position of the dial. In the case of a mouse, the increasing / decreasing direction is the moving direction of the mouse and the amount of change is the moving speed of the mouse. In the case of the mouse wheel, the increasing / decreasing direction is the rotating direction of the wheel, and the changing amount is the rotating speed of the wheel. In this way, any device that can input the increase / decrease direction and the amount of change can be used as an input means. Furthermore, the increase / decrease direction and the change amount may be assigned to independent input means. For example, the increase / decrease direction can be switched with a toggle switch, and the change amount can be used as the rotation angle of the dial.
[0011]
[Action]
The numerical value adjusting apparatus according to the present invention includes a display means for displaying a numerical value to be adjusted as a digital numerical value or an analog numerical value, an input means for inputting an increase / decrease direction and a change amount, and the input increase / decrease direction and the input change amount as the adjustment target numerical value. Conversion means for converting the amount of displacement into a numerical value to be adjusted and reflecting it in the numerical value to be adjusted, the conversion means positive or negative depending on the input increase / decrease direction. Is the amount of displacement, the unit amount of the displacement is increased if the input change amount exceeds a predetermined value, and the state where the input change amount can be regarded as 0 continues for a predetermined period. Is set to the minimum value, and when the input increase / decrease direction is switched, the unit amount of the displacement is held, and Add the displacement to the adjustment target value Therefore, the displayed adjustment target numerical value can be increased or decreased by the input means.
[0012]
The amount of change in the input means and the level of the unit amount of displacement of the numerical value to be adjusted are associated in advance, and when the amount of change in the input means increases, the unit amount of displacement is increased. Can be added. Further, even if the amount of change in the input means is reduced thereafter, the unit amount of the displacement remains large unless the amount of change becomes a state that can be regarded as zero continuously for a certain period. You can continue to add.
[0013]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not necessarily restricted to a following example.
Details of the first embodiment will be described below with reference to the accompanying drawings. FIG. 1 is an electrical block diagram of a numerical value adjusting apparatus described in the following embodiments. However, the numerical adjustment according to the present invention apparatus Only the configuration necessary to explain the above is described. FIG. 2 is a state transition diagram of numerical values to be adjusted in this embodiment.
[0014]
In FIG. 1, a CPU 1 is a central processing unit and executes arithmetic processing. The ROM 2 is a read-only nonvolatile memory and contains a program executed by the CPU 1 and initial values of data. The RAM 3 is a readable / writable random access memory, and is used as a work area when the CPU 1 executes a program. The CPU 1 is connected to the ROM 2, RAM 3, rotary encoder 5, and display device 4 via an input / output port or bus. The CPU 1 has a built-in timer and can measure time. The CPU1, ROM2, RAM3, and timer modules are enclosed in a single package, and a one-chip computer having input / output ports or bus terminals may be used, or separate components connected on a board. Alternatively, a plurality of substrates connected by cables or the like may be used.
[0015]
The display device 4 has at least a function of displaying a numerical value to be adjusted. Here, a digital display device that displays a numerical value as a character and a plurality of digits is used. Specifically, for example, numbers and decimal symbols and negative symbols can be displayed if necessary, a character liquid crystal display device that can display the required number of digits, and the number of dots that can display the required number of digits and symbols, etc. A graphic liquid crystal display device or a 7-segment LED display member arranged in a required number can be used.
[0016]
The rotary encoder 5 can be rotated clockwise / counterclockwise by the user operating the knob, and outputs information indicating in which direction it is rotated and how much it is rotated. Here, a general optical incremental rotary encoder is used, but other types of rotary encoders such as a contact type and a magnetic type may of course be used. The rotary encoder 5 can be mechanically rotated in any direction as long as a force is applied from the outside, and stops when the force is stopped.
[0017]
The detection principle is as follows. A disk is mounted coaxially with the knob, slits are provided intermittently at appropriate circumferential positions of the disk, and the light emitting element and the light receiving element are placed facing each other across the disk. When the knob is rotated, light from the light emitting element to the light receiving element passes or is blocked. Therefore, the amount of rotation can be measured by detecting the received signal of the light receiving element as a pulse and counting it. In addition, two sets of light emitting elements and light receiving elements are installed with their phases shifted from each other, and the rotation direction can be detected by comparing the output pulses (generally referred to as A phase and B phase) of the respective light receiving elements. it can.
[0018]
Although this type of rotary encoder can detect how much it has rotated in which direction from a certain point in time, it cannot detect the absolute value of the rotation angle, and is therefore called an incremental method. The CPU 1 detects that the rotary encoder 5 has rotated one unit in the clockwise direction or one unit in the counterclockwise direction by inputting the A-phase and B-phase outputs of the rotary encoder 5 and comparing the pulse changing methods. can do. For example, the CPU 1 measures a constant time interval of 100 to several hundreds of milliseconds with a built-in timer, and counts the pulses output from the rotary encoder 5 within the predetermined time, thereby determining the rotational speed of the rotary encoder 5 at that time. Can be sought.
[0019]
Next, a numerical value adjustment method using the rotary encoder 5 will be described in detail using a state transition diagram of numerical values to be adjusted in FIG. In the state transition diagram, a state is represented in a square with rounded corners, and a transition from one state to another state or the same state is represented by an arrow. An arrow indicates an event that causes the transition, and further indicates a condition that the event should satisfy in brackets. A state transition occurs only when an event that satisfies the conditions in the brackets occurs. Hereinafter, it is defined that the numerical value is increased when the knob of the rotary encoder 5 is rotated clockwise (CW) and is decreased when the knob is rotated counterclockwise (CCW). Accordingly, the rotational speed of the rotary encoder 5 is positive when rotated in the clockwise direction and negative when rotated in the counterclockwise direction together with the increase / decrease direction. The unit amounts of numerical displacement are 1, 10, and 100. Furthermore, the rotational speed of the rotary encoder 5 used as a reference for switching the unit amount of displacement is defined as v1 and v2. As the unit amount of displacement and the rotation speed used as a reference for switching the displacement, when the rotation direction is counterclockwise, a negative value obtained by multiplying by -1 is used.
[0020]
First, the apparatus displays the adjustment target numerical value on the display device 4. In some cases, the numerical value displayed at this time is an initial value read from the ROM 2 immediately after the apparatus is started up, or some measured value or a value previously stored in the RAM 3 is read out. It may be a numerical value.
The adjustment target numerical value is an initial value and is constant immediately after the start of adjustment (S11). The CPU 1 detects the speed of the rotary encoder 5 at regular intervals. For example, if the user rotates the knob of the rotary encoder 5 clockwise, the speed of the rotary encoder 5 changes from 0 to positive. If the speed is smaller than v1, the CPU 1 increases the adjustment target numerical value by 1 each time the speed is detected (S12). When the adjustment target numerical value is displaced, the CPU 1 displays the resultant numerical value on the display device 4. When the user rotates the rotary encoder 5 faster and the speed becomes v1 or more, the CPU 1 switches the unit amount of displacement from 1 to 10 and increases the adjustment target numerical value by 10 (S13). However, after that, even if the rotational speed of the rotary encoder 5 falls below v1, as long as the rotational speed is positive, the unit amount of the displacement remains 10 and the target numerical value is increased by 10. As a result, the user can increase the digit to be adjusted by one digit, and the speed of rotating the knob of the rotary encoder 5 can be decreased after the digit has been increased. Therefore, the user can easily adjust the digit to a desired value. It becomes possible.
[0021]
When the display device 4 has a cursor display function or a graphic data overlay display function, the CPU 1 simultaneously displays a cursor or a highlight rectangle at the digit position corresponding to the unit amount of displacement. It is desirable. As a result, the unit amount of the displacement can be switched and the digit position can be highlighted and distinguished from the others, so that the user can more easily recognize the current unit amount of the displacement.
[0022]
Further, when the user rotates the rotary encoder 5 faster and the speed becomes v2 or more, the CPU 1 switches the displacement unit amount from 10 to 100 and increases the adjustment target numerical value by 100 (S14). Similarly, even if the rotational speed of the rotary encoder 5 falls below v2 thereafter, as long as the rotational speed is positive, the unit amount of displacement remains 100, and the target numerical value is increased by 100.
When the user rotates the rotary encoder 5 counterclockwise instead of clockwise, the rotational speeds used as references for switching the displacement unit amount and the displacement unit amount of the adjustment target numerical value are not positive but negative values, respectively. And similar control is executed (S15, S16, S17).
[0023]
When the user stops the rotation of the rotary encoder 5, the CPU 1 stops displacing the numerical value to be adjusted and keeps it constant (S11). At this time, the CPU 1 does not stop the displacement immediately when it detects that the rotational speed has become zero, but the rotational speed is continuously zero at least a plurality of times during a predetermined time for detecting the rotational speed of the rotary encoder 5. If this is the case, transition to a certain state is made for the first time. While the rotational speed is 0, the unit amount of the displacement is maintained, but the displacement is not added to the adjustment target numerical value. As a result, if the rotary encoder 5 is not always rotated at a constant speed or higher while the numerical displacement response to the rotation of the rotary encoder 5 is kept at a certain high speed, the unit amount of displacement will immediately return to the minimum value. The user can be relieved from burden. This also makes it possible to cope with the switching of the rotation direction described below.
[0024]
The operation when the direction of rotation is switched while the user is rotating the rotary encoder 5 will be described. It is assumed that the user is now rotating the rotary encoder 5 clockwise and the unit amount of displacement is 10 (S13). Here, when the user switches the rotation direction of the rotary encoder 5 from the clockwise direction to the counterclockwise direction, the unit amount of the displacement is rotated in the clockwise direction rather than starting from −1 which is the negative value of the minimum unit. Is set to -10 which is a negative value of 10 which is a unit amount of displacement (S13 → S16).
[0025]
Depending on the timing of switching the rotational direction of the rotary encoder 5, when the CPU 1 detects the rotational speed, the speed 0 may be detected while the rotational speed shifts from positive to negative. As described above, the CPU 1 does not return the unit amount of the displacement to the minimum value unless the rotational speed 0 is continuously detected at least a plurality of times. For this reason, if the user switches the rotation direction with a normal feeling, the numerical value to be adjusted can be increased or decreased while maintaining the same absolute displacement unit amount. It is possible to smoothly adjust the digit value in either direction.
[0026]
When the adjustment target numerical value has an upper limit and a lower limit of the adjustable range, the CPU 1 corrects the adjustment result so that the adjustment target numerical value does not exceed the upper limit and the lower limit. There are at least two options for the correction method. For example, it is assumed that the current value of the adjustment target numerical value is 987, the upper limit value is 999, and the current unit amount of displacement is 100. Here, when the rotary encoder 5 is further rotated in the clockwise direction, if the value is increased by 100, the numerical value to be adjusted exceeds the upper limit. Here, the first method is to keep 987 without changing the adjustment target numerical value when it cannot be increased by 100.
[0027]
The second method is to correct the upper limit when the upper limit is exceeded, that is, to displace 987 to 999. If each of them is long and short and the user intends to change only the 100-digit number without changing the 1-digit and 10-digit numbers, the unintended digit number is not changed. Therefore, the former method is considered to be superior. On the other hand, if the user rotates the rotary encoder 5 in the clockwise direction and the numerical value to be adjusted is still within a range that can be increased, the user's feeling of use becomes worse if the numerical value is not displaced. The latter method is considered to be superior in this respect. Which method to select depends on the policy of the application that implements this numerical adjustment method.
[0028]
In this embodiment, the unit amount of displacement is set to 3 levels, but it is easy to increase this to 4 levels or more. In this case, the rotational speed level of the rotary encoder 5 used as a reference for switching the unit amount of displacement is increased accordingly. Also, even when the numerical value to be adjusted is not an integer but a real number, it can be easily handled by setting the minimum value of the unit amount of displacement to the finest digit necessary for adjustment, for example, 0.01. is there.
[0029]
Further, in this embodiment, the unit amount of displacement is always adopted as the amount of displacement of the numerical value to be adjusted for every predetermined time when the CPU 1 obtains the speed of the rotary encoder 5. This is because the rotational speed of the rotary encoder 5 is used only for switching the unit amount of displacement in a sense, and even if the user rotates the rotary encoder 5 at a high speed, the digit of the digit that is currently subject to displacement. Means that it cannot be changed at high speed. This method is considered appropriate from the viewpoint of displacing the numerical value to be adjusted based on the explicit switching of the unit amount of displacement. However, it is also possible to use a numerical value obtained by multiplying the unit amount of displacement by several times in proportion to the rotational speed of the rotary encoder 5 for actual displacement while switching the unit amount of displacement. . Some applications can be operated more efficiently if they are implemented in such a way.
[0030]
Furthermore, in this embodiment, a digital display device is used as the display device, but an analog display device can also be used. A general analog indicator may be used, or an analog indicator with a logarithmic scale may be used in an application in which the accuracy of the lower digit value is not required as the adjustment target value increases. Alternatively, an analog indicator may be installed independently for each level of the unit amount of displacement, and the analog indicator whose display is directly changed in response to the operation may be switched each time the unit amount of displacement is switched. .
[0031]
When the user operates the apparatus on which the numerical value adjustment method is mounted for the first time, the user does not intuitively grasp the levels of v1 and v2, and therefore it may take a short time to get used. However, as you get used to it, you can make numerical adjustments faster.
[0032]
Details of the second embodiment will be described below with reference to the accompanying drawings. The electrical part of the numerical adjustment device is the same as that shown and described in the first embodiment, so that the description thereof is omitted. The numerical adjustment method is different from the first embodiment. FIG. 3 is a state transition diagram of numerical values to be adjusted in the embodiment.
The numerical value adjusting method in the present embodiment will be described in detail with reference to the state transition diagram of the numerical value to be adjusted in FIG. Hereinafter, it is defined that the numerical value is increased when the knob of the rotary encoder 5 is rotated clockwise (CW) and is decreased when the knob is rotated counterclockwise (CCW). Accordingly, the rotational speed of the rotary encoder 5 is positive when rotated in the clockwise direction and negative when rotated in the counterclockwise direction together with the increase / decrease direction. The unit amounts of numerical displacement are 1, 10, and 100. The definition so far is common to the first embodiment. Finally, the rotational speed of the rotary encoder 5 used as a reference for switching the unit amount of displacement is defined as v0. As the unit amount of displacement and the rotation speed used as a reference for switching the displacement, when the rotation direction is counterclockwise, a negative value obtained by multiplying by -1 is used.
[0033]
The adjustment target numerical value is an initial value and is constant immediately after the start of adjustment (S21). The CPU 1 detects the speed of the rotary encoder 5 at regular intervals. For example, if the user rotates the knob of the rotary encoder 5 clockwise, the speed of the rotary encoder 5 changes from 0 to positive. If the speed is smaller than v0, the CPU 1 increases the adjustment target numerical value by 1 each time the speed is detected (S22). When the adjustment target numerical value is displaced, the CPU 1 displays the resultant numerical value on the display device 4. When the user rotates the rotary encoder 5 faster and the speed becomes v0 or more, the CPU 1 switches the unit amount of displacement from 1 to 10, and increases the adjustment target numerical value by 10 (S23). Thereafter, when the rotational speed of the rotary encoder 5 falls below v0, as long as the rotational speed is positive, the unit amount of the displacement remains 10 and the target numerical value is increased by 10. As a result, the user can increase the digit to be adjusted by one digit, and the speed at which the knob of the rotary encoder 5 is rotated can be reduced after the digit has been increased. Therefore, the user can easily adjust the digit to a desired value. It becomes possible.
[0034]
Further, when the user continues to rotate the rotary encoder 5 without dropping the rotational speed below v0, the CPU 1 detects the rotational speed at least a plurality of times continuously and detects the unit of displacement. The amount is switched from 10 to 100, and the adjustment target numerical value is increased by 100 (S24). Similarly, even when the rotational speed of the rotary encoder 5 is lower than v0 after this, as long as the rotational speed is positive, the displacement unit amount remains 100 and the target numerical value is increased by 100.
[0035]
With the above control, when the user rotates the rotary encoder 5 at a rotational speed of v0 or higher, the unit amount of displacement of the numerical value to be adjusted is switched, and the user turns the rotary encoder 5 at a low speed lower than v0. When it is rotated, the adjustment target value is displaced by the unit amount of the current displacement, and if it is rotated slightly for a short time to v0 or higher and then returned to the low speed, the adjustment target value is only the unit amount of the large displacement by one step. If the displacement is performed and the velocity of v0 or more is maintained, the unit amount of displacement can be continuously increased. In this case, it is possible to prevent an unexpected number from being changed by adding control that the adjustment target numerical value is not displaced immediately after the CPU 1 switches the unit amount of displacement.
The control related to switching between positive and negative and stopping is the same as in the first embodiment, and the description is omitted.
[0036]
In the present embodiment, a method is adopted in which the unit amount of displacement is continuously increased if the user keeps the rotational speed of the rotary encoder 5 at or above v0. However, apart from this, after increasing the unit amount of displacement by one step, the unit amount of displacement is not further increased unless the rotational speed once falls below v0 and then becomes v0 or more again. Conceivable. When this method is adopted, increasing the rotational speed only for a short time and then returning it to the original operation means an increase in the unit amount of displacement.
As in the first embodiment, when the user first operates the apparatus on which the numerical adjustment method is implemented, the user does not intuitively grasp the level of v0, and therefore it may take a little time to get used to it. There is. However, as you get used to it, you can make numerical adjustments faster.
[0037]
Details of the third embodiment will be described below with reference to the accompanying drawings. FIG. 4 is an electrical block diagram of the numerical value adjusting apparatus described in the following embodiments. However, the numerical adjustment according to the invention apparatus Only the configuration necessary to explain the above is described. FIG. 5 is a state transition diagram of numerical values to be adjusted in this embodiment.
[0038]
In FIG. 4, CPU 1 is a central processing unit and executes arithmetic processing. The ROM 2 is a read-only nonvolatile memory and contains a program executed by the CPU 1 and initial values of data. The RAM 3 is a readable / writable random access memory, and is used as a work area when the CPU 1 executes a program. The CPU 1 is connected to the ROM 2, RAM 3, and display device 4 via an input / output port or bus. Further, the CPU 1 incorporates an A / D (analog / digital conversion) function unit and is connected to the joystick 6 via an A / D input port. The CPU 1 has a built-in timer and can measure time. The CPU1, ROM2, RAM3, A / D converter and timer modules may be enclosed in a single package, and a one-chip computer having input / output ports or bus terminals may be used. What connected above or what connected several board | substrates with the cable etc. may be used.
[0039]
The display device 4 has at least a function of displaying a numerical value to be adjusted. Here, a digital display device that displays a numerical value as a character and a plurality of digits is used. Specifically, for example, numbers and decimal symbols and negative symbols can be displayed if necessary, a character liquid crystal display device that can display the required number of digits, and the number of dots that can display the required number of digits and symbols, etc. A graphic liquid crystal display device or a 7-segment LED display member arranged in a required number can be used.
[0040]
The joystick 6 allows the user to tilt the stick in a predetermined direction, and outputs information on which direction and how much the stick is tilted. Here, a single-axis joystick 6 using a potentiometer is used. However, one of the two axes may be assigned for numerical adjustment using a two-axis joystick, and a rotary encoder may be used to detect the tilt of the stick. There may be a system that does not have a rotating shaft but detects a force applied to the stick with a pressure sensor while fixing the stick. The joystick 6 is provided with a rotary shaft at the base of the stick, and a spring is used to automatically return the stick to a predetermined position when no force is applied to the stick. The user can tilt the stick to some extent from the center position in two forward and reverse directions in which the rotating shaft rotates.
[0041]
Furthermore, a potentiometer is attached to the rotating shaft. The potentiometer is an electronic component that converts a rotation angle into a voltage, and the joystick 6 outputs this voltage. The voltage output from the joystick 6 is, for example, 0V when the stick is in the center position, and the two directions in which the stick can be tilted correspond to positive and negative voltages, respectively, and a larger voltage is output as the tilt increases. Alternatively, the output voltage may be set to 0 to 5V, and the center of 2.5V may correspond to the state where the stick is at the center position.
[0042]
The CPU 1 inputs the voltage output from the joystick 6 from the A / D input port, converts the input voltage into a digital value by A / D conversion, and then converts the input voltage to the tilt angle of the stick by calculation based on the specifications of the joystick 6. Convert to For example, the CPU 1 measures a certain time interval of several tens to several hundreds of milliseconds with a built-in timer and measures and calculates the output voltage of the joystick 6 at every certain time, whereby the joystick 6 is tilted at that time. The direction and the inclination angle can be obtained.
[0043]
Next, a numerical value adjustment method using the joystick 6 will be described in detail with reference to a state transition diagram of numerical values to be adjusted in FIG. In the following, it is assumed that the stick of the joystick 6 is installed so that it can be tilted to the left and right, and that the numerical value is increased when tilted to the right and the numerical value is decreased when tilted to the left. Accordingly, the tilt angle of the joystick 6 is positive when tilted to the right and negative when tilted to the left, along with the increase / decrease direction. The unit amounts of numerical displacement are 1, 10, and 100.
[0044]
Furthermore, the inclination angles of the joystick 6 used as a reference for switching the unit amount of displacement are defined as θ1 and θ2. As the unit amount of displacement and the inclination angle used as a reference for switching the displacement, a negative value obtained by multiplying by -1 is used when tilted to the left.
First, the apparatus displays the adjustment target numerical value on the display device 4. The numerical value displayed at this time may be an initial value read from the ROM 2 if the apparatus is just started up in some cases, or some measured value or a numerical value previously adjusted stored in the RAM 3 It may be the read value.
[0045]
The adjustment target value is an initial value and is constant immediately after the start of adjustment (S31). The CPU 1 detects the tilt angle of the joystick 6 at regular intervals. For example, if the user tilts the stick of the joystick 6 to the right, the tilt angle output by the joystick 6 changes from 0 to positive. If the tilt angle is smaller than θ1, the CPU 1 increases the adjustment target numerical value by 1 each time the tilt angle is detected (S32). When the adjustment target numerical value is displaced, the CPU 1 displays the resultant numerical value on the display device 4. When the user further tilts the joystick 6 and the tilt angle becomes equal to or greater than θ1, the CPU 1 switches the displacement unit amount from 1 to 10 and increases the adjustment target numerical value by 10 (S33). However, after that, even if the tilt angle of the joystick 6 is less than θ1, as long as the tilt angle is positive, the unit amount of displacement remains 10 and the target numerical value is increased by 10.
[0046]
When the user further tilts the joystick 6 and the tilt angle becomes θ2 or more, the CPU 1 switches the unit amount of displacement from 10 to 100 and increases the adjustment target numerical value by 100 (S34). Similarly, even if the tilt angle of the joystick 6 is less than θ2 thereafter, as long as the tilt angle is positive, the unit amount of displacement remains 100, and the target numerical value is increased by 100.
[0047]
When the user tilts the joystick 6 to the left instead of to the right, the inclination angle used as a reference for switching the displacement unit amount and the displacement unit amount of the numerical value to be adjusted is evaluated as a negative value instead of a positive value. Control is executed (S35, S36, S37).
When the user returns the tilt of the joystick 6 to the center or when the user releases the stick and the stick automatically returns to the center position, the CPU 1 stops displacing the adjustment target numerical value and keeps it constant ( S31). At this time, the CPU 1 does not stop the displacement immediately upon detecting that the tilt angle has become the center position, but the tilt angle is continuously centered at least a plurality of times during a predetermined time for detecting the tilt angle of the joystick 6. When it is in the position, it shifts to a certain state for the first time. While the tilt angle is the center position, the unit amount of the displacement is maintained, but the displacement is not added to the adjustment target numerical value. As a result, it is possible to cope with the switching of the tilt direction described below.
[0048]
The operation when the user switches the tilt of the joystick 6 from one tilted direction to another direction instead of tilting from the center position will be described. Assume that the user is tilting the joystick 6 to the right and the unit amount of displacement is 10 (S33). Here, when the user switches the tilt direction of the joystick 6 from right to left, the unit amount of displacement when the unit of displacement is tilted to the right instead of starting from the minimum negative unit value of −1. Is set to -10 which is a negative value of 10 (S33 → S36).
[0049]
Depending on the timing of switching the tilt direction of the joystick 6, when the CPU 1 detects the tilt angle, the center position may be detected while the tilt angle shifts from right to left. However, as described in the previous paragraph In addition, the CPU 1 does not return the unit amount of the displacement to the minimum value unless the CPU 1 detects the center position continuously at least a plurality of times. For this reason, if the user switches the tilt direction with a normal feeling, the numerical value to be adjusted can be increased or decreased while maintaining the same absolute displacement unit amount. It is possible to smoothly adjust the digit value in either direction.
[0050]
A description of the handling when the adjustment target numerical value has an upper limit and a lower limit of the adjustable range, and the level number of the unit amount of displacement and the phenotype of the adjustment target numerical value are the same as in the first embodiment, and will be omitted. In this embodiment, as the amount of displacement of the adjustment target numerical value, the CPU 1 always employs a unit amount of displacement every fixed time for obtaining the tilt angle of the joystick 6. This is because the tilt angle of the joystick 6 is used only to switch the unit amount of displacement in a certain sense, and no matter how much the user tilts the joystick 6, the digit of the current displacement target is fast. It means that it cannot be changed. This method is considered appropriate from the viewpoint of displacing the numerical value to be adjusted based on the explicit switching of the unit amount of displacement. However, it is also possible to use a numerical value obtained by multiplying the unit amount of displacement by several times in proportion to the tilt angle of the joystick 6 when actually displacing while switching the unit amount of displacement. Some applications can be operated more efficiently if they are implemented in such a way.
[0051]
When the user first operates an apparatus in which this numerical adjustment method is implemented, the user does not intuitively grasp the levels of θ1 and θ2, and therefore it may take a short time to get used. However, as you get used to it, you can make numerical adjustments faster.
[0052]
【The invention's effect】
The numerical value adjusting apparatus according to the present invention includes a display means for displaying a numerical value to be adjusted as a digital numerical value or an analog numerical value, an input means for inputting an increase / decrease direction and a change amount, and the input increase / decrease direction and the input change amount as the adjustment target numerical value. Conversion means for converting the amount of displacement into a numerical value to be adjusted and reflecting it in the numerical value to be adjusted, the conversion means positive or negative depending on the input increase / decrease direction. Is the amount of displacement, the unit amount of the displacement is increased if the input change amount exceeds a predetermined value, and the state where the input change amount can be regarded as 0 continues for a predetermined period. Is set to the minimum value, and when the input increase / decrease direction is switched, the unit amount of the displacement is held, and Add the displacement to the adjustment target value Therefore, the user can efficiently perform an operation of adjusting the numerical value to a value significantly different from the currently specified numerical value.
[Brief description of the drawings]
FIG. 1 is an electrical block diagram of an apparatus according to an embodiment.
FIG. 2 is a state transition diagram of adjustment target numerical values.
FIG. 3 is a state transition diagram of numerical values to be adjusted.
FIG. 4 is an electrical block diagram of an apparatus according to an embodiment.
FIG. 5 is a state transition diagram of numerical values to be adjusted.
[Explanation of symbols]
1 CPU
2 ROM
3 RAM
4 display devices
5 Rotary encoder
6 Joystick

Claims (3)

An apparatus for adjusting a displayed numerical value, wherein a display means for displaying a numerical value to be adjusted as a digital numerical value or an analog numerical value, an input means for inputting an increase / decrease direction and an amount of change, the input increase / decrease direction and the input A conversion unit that converts a change amount into a displacement amount of the adjustment target numerical value and reflects the change amount in the adjustment target numerical value, and the conversion unit calculates a displacement unit amount or a product of the input change amount and the displacement unit amount. A state in which a positive or negative value according to the input increase / decrease direction is used as a displacement amount, and when the input change amount exceeds a predetermined value, the unit amount of the displacement is increased, and the state in which the input change amount can be regarded as 0 is previously set. set the unit amount of the displacement Once defined period consecutive to the minimum value, together with the case where the input increase or decrease direction is switched holds a unit amount of the displacement, the displacement amount of the adjustment object values Numerical adjustment apparatus characterized by calculation to.   2. The numerical adjustment apparatus according to claim 1, wherein the input means is a rotary encoder, the input increase / decrease direction is a rotation direction of the rotary encoder, and the input change amount is a rotation speed of the rotary encoder.   2. The numerical adjustment apparatus according to claim 1, wherein the input means is a joystick, the input increase / decrease direction is an operation direction with respect to the joystick, and the input change amount is a magnitude of an operation with respect to the joystick.

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