JP2000292446A - Measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring apparatus in which the setting of a set value can be changed in a short time. SOLUTION: This measuring apparatus is provided with a function which displays a numerical value, to be set, on a display part while the numerical value to be set is being changed continuously (Step 7) when a key for numerical- value change is operated continuously by exceeding a first prescribed time, In addition, the measuring apparatus is provided with a function which changes a numerical value by a change amount which is larger than the change amount of a previous numerical value (Step 13).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a function for continuously changing and displaying a numerical value to be set on a display unit while continuously changing a numerical value to be set when a numerical value changing key is continuously operated. The present invention relates to a measuring device having:

[0002]

2. Description of the Related Art For example, in a waveform display device capable of displaying a signal waveform of a measured AC voltage on a display unit, an upper limit value and a lower limit value of a display range to be displayed on the display unit when displaying the signal waveform are respectively set. It can be set arbitrarily. In this case, for example, the display range is such that the lower limit is in the range of -1000 V to 999 V, and the upper limit is -99 V.
It is set arbitrarily in steps of 1 V in the range of 9 V to 1000 V. Further, the waveform display device has a U for changing a set value for changing an upper limit value and a lower limit value of a display range.
A P key and a DOWN key are provided. Therefore, for example, when changing the upper limit of the display range,
When the key or the DOWN key is operated once, the upper limit value is changed to a value increased or decreased only once by a change amount of 1 V, and the changed new set value is displayed on the display unit. On the other hand, when, for example, one second or more has elapsed since the start of the operation by continuously pressing the UP key or the DOWN key, a so-called key repeat function was activated, and the upper limit value was continuously increased or decreased by a change amount of 1 V per 0.1 second. The value is changed, and the changed value is sequentially displayed on the display unit.

[0003] Specifically, when changing the upper limit set at, for example, 12V to 150V, the UP key is operated. In this case, as shown in FIG. 6, at the moment (0 second) when the UP key is operated, the set value is changed from 12V to 13V.
It is changed to V. When the UP key is kept pressed for 1 second or more from the start of the operation, the set value is changed from 13 V to 14 V. Thereafter, as long as the UP key is kept pressed, the set value is 1 V per 0.1 second. It is continuously changed by the change amount of. For example, if the UP key is pressed for 5 seconds, the set value is changed to 54V, if the UP key is pressed for 10 seconds, the set value is changed to 104V, and if the UP key is pressed for 15 seconds, the set value is changed. Is changed to 154V. Therefore, when changing the upper limit value to 150 V, hold down the UP key for about 14 seconds and release it once, and then display the value according to the difference between the set value displayed on the display unit and the target set value 150 V. Operate the UP key or DOWN key several times until the display shows 150V. At this time, use the UP key or DOW so that the key repeat function does not operate.
Operate the N key intermittently. Thereby, the setting of the upper limit value of the display range is changed to 150V.

[0004]

However, the conventional waveform display device has the following problems. That is, in the conventional waveform display device, for example, the upper limit of the display range is 12 V
When changing to 800V with the setting of
You have to hold down the UP key for about 80 seconds. Therefore, when the set value is largely changed, the UP key or the DOWN key must be kept pressed for a long time, and the conventional waveform display device has a problem that the operation requires a long time.

In the operation state of the key repeat function in the conventional waveform display device, the change interval of the set value is 0.1.
Since the setting is very short, such as seconds, the visibility is poor and it is difficult to read the set values sequentially displayed on the display unit. Therefore, it is very difficult to release the UP key or the DOWN key in a timely manner so as to set the target set value. For this reason, when the set value is set to a value far away from the target set value, the UP key or the DOWN key must be operated several more times until the set value is set. The operation is complicated and takes a long time. On the other hand, if the visibility is improved by increasing the change interval of the setting value, the time required for the setting change becomes longer.

The present invention has been made in view of such a problem, and has as its main object to provide a measuring apparatus capable of changing a setting value in a short time. It is another object of the present invention to provide a measuring device capable of easily changing a setting value.

[0007]

According to a first aspect of the present invention, there is provided a measuring apparatus, comprising: a numerical value setting unit for setting a numerical value to be set when a numerical value changing key is continuously operated for more than a first predetermined time; In the measuring device having a function of displaying the numerical value on the display unit while continuously changing the numerical value, the numerical value changing key is continuously operated over a second predetermined time longer than the first predetermined time. In this case, a function of changing the numerical value with a larger change amount than the numerical value change amount before that is further provided.

According to a second aspect of the present invention, in the measuring apparatus of the first aspect, when the numerical value changing key is continuously operated for more than the second predetermined time, the numerical value changing speed before the key is changed. It is characterized by having a function of changing numerical values at a lower speed.

According to a third aspect of the present invention, in the measuring apparatus according to the first or second aspect, the numerical value changing key is operated from the start of operation after a third predetermined time shorter than the second predetermined time. When continuously operated, a function of changing the numerical value with a change amount substantially equal to the change amount in the period from the first predetermined time to the third predetermined time and at a speed higher than the change speed in the period is provided. It is characterized by having.

According to a fourth aspect of the present invention, in the measuring apparatus according to any one of the first to third aspects, when the numerical value changing key is continuously operated for more than the second predetermined time,
It has a function of changing the numerical value after rounding up or down at least the least significant digit of the numerical value set immediately before.

According to a fifth aspect of the present invention, in the measuring apparatus according to any one of the first to fourth aspects, the numerical value changing key is set to exceed the fourth predetermined time longer than the second predetermined time. It is characterized by having a function of changing the numerical value by a larger change amount than the numerical value change amount immediately before it is operated continuously.

According to a sixth aspect of the present invention, there is provided a measuring apparatus according to any one of the first to fifth aspects, further comprising a function capable of arbitrarily setting an amount of change in a numerical value.

According to a seventh aspect of the present invention, there is provided a measuring apparatus according to any one of the first to sixth aspects, further comprising a function capable of arbitrarily setting a predetermined time length.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which a measuring device according to the present invention is applied to a waveform display device will be described below with reference to the accompanying drawings.

This waveform display device has a display unit for displaying a signal waveform of an input signal and a screen for setting various operating conditions, an operation unit on which various keys such as an UP key and a DOWN key are arranged, and a key operation unit. And a control unit for changing the set value accordingly and displaying the set value on the display unit (both are not shown). In this case, the UP key and the DOWN key correspond to the numerical value changing keys in the present invention. On the other hand, when the operation of the UP key or the DOWN key is started, the control unit changes the set value by a predetermined change amount,
When continuously operated, as shown in FIG. 2, the key repeat function is operated, and the set value is continuously changed at different change intervals and change amounts according to the elapsed time from the start of the key operation. When the change interval setting key or the change amount setting key is operated, the control unit changes the set value at the change interval or the change amount according to the operation.

Next, a numerical value changing process in the waveform display device according to the embodiment of the present invention will be specifically described with reference to the drawings.

For example, when the setting of the upper limit of the display range is changed, an operation condition setting screen for setting the upper and lower limits of the display range is displayed on the display unit by operating a predetermined key. Display. Next, with the cursor positioned at the preset value for the upper limit value displayed on the display unit, the UP key or the DOWN key is operated until the preset value is changed to the target preset value. Below, 1
An example in which the upper limit set at 2V is changed to 813V will be specifically described. First, as shown in FIG. 1, an UP key as a numerical value change key is operated (step 1). At this time, as shown in FIG. 3, after changing the upper limit from 12 V to 13 V with a change amount of 1 V (step 2), the control unit determines whether or not the numerical value change key (UP key) is kept pressed. A determination is made (step 3). If it is determined that the button has not been pressed, the numerical value changing process is terminated (step 4).

On the other hand, when it is determined that the UP key is kept depressed, the control unit determines whether or not one second (corresponding to a first predetermined time in the present invention) has elapsed since the start of the operation of the UP key. Is determined (step 5). When it is determined that the time has not elapsed, steps 3 and 5 are repeatedly executed. When it is determined that one second or more has elapsed,
It is determined whether four seconds or more (corresponding to a third predetermined time in the present invention) have elapsed from the start of the operation (step 6). If it is determined that the elapsed time has not elapsed, the set value is continuously changed at a change amount of 1 V per 0.5 second (step 7). As a result, as shown in FIG. 3, the set value is changed to 14 V when one second has elapsed from the start of the operation of the UP key, and thereafter, the set value is continuously changed at a change amount of 1 V per 0.5 second. When 3.5 seconds have elapsed from the start of the operation, the set value is changed to 19V.

If it is determined in step 6 that four seconds or more have elapsed since the start of the operation, it is determined whether seven or more seconds (corresponding to the second predetermined time in the present invention) have elapsed since the start of the operation. Is determined (step 8). If it is determined that the elapsed time has not elapsed, the set value is continuously changed at a change amount of 1 V per 0.2 second (step 9). As a result, as shown in FIG.
The voltage is changed to 20 V when 4 seconds have elapsed from the start of the key operation, and thereafter, the voltage is continuously changed at a change amount of 1 V per 0.2 seconds.
It is changed to V.

In step 8, the control unit determines whether
When it is determined that more than one second has elapsed, 12 seconds from the start of the operation (corresponding to the fourth predetermined time in the present invention)
It is determined whether or not the above has elapsed (step 10). If it is determined that the elapsed time has not elapsed, it is determined whether the first digit, which is the least significant digit in the set value, is “0” (step 11). When it is determined that the first digit is not “0”, the first digit is rounded up (step 1).
2) The set value is continuously changed at a change amount of 10 V per 0.5 second (step 13). On the other hand, when it is determined to be "0", the set value is continuously changed at a change amount of 10 V per 0.5 second (step 13). As a result, as shown in FIG. 4, the set value is set to 7 from the start of the operation of the UP key.
When the second elapses, the voltage is changed from 34V to 40V, and when 7.5 seconds elapse from the start of the operation, the voltage is changed to 50V.
Thereafter, the voltage is continuously changed at a change amount of 10 V per 0.5 second, and when 11.5 seconds have elapsed from the start of the operation, 130 is changed.
It is changed to V.

In step 10, the control unit determines
If it is determined that 12 seconds or more have passed, the set value of 10
It is determined whether the digit of the place is "0" (step 1).
4). If it is determined that the value is not "0", the tenth digit is rounded up (step 15), and the set value is continuously changed at a change amount of 100 V per 0.5 second (step 16). On the other hand, when it is determined to be “0”,
The set value is continuously changed at a change amount of 100 V per 0.5 second (step 16). As a result, as shown in FIG. 5, the set value is rounded up to the tenth place when 12 seconds have elapsed from the start of the operation of the UP key, and the set value is increased from 130 V to 200
V, and is changed to 300 V when 12.5 seconds have elapsed from the start of the operation. Thereafter, the set value is continuously changed at a change amount of 100 V per 0.5 second, and when the UP key is released 15 seconds after the start of the operation, the set value becomes 800
It is changed to V. Thus, the numerical value change processing ends.

Next, when the UP key is operated again (step 1), the control unit sets the change amount to 1V and the upper limit value to 800V.
After changing the voltage to 801 V (step 2), it is determined whether or not the UP key is kept pressed (step 3).
A determination is made as to whether or not more than two seconds have elapsed (step 5), and a determination is made as to whether or not more than four seconds have elapsed (step 6).
When it is determined that the time has not elapsed for more than one second, the set value is continuously changed at a change amount of 1 V per 0.5 second (step 7). As a result, the set value is changed to 802 V when one second has elapsed after the UP key is operated again, and is changed to 807 V when 3.5 seconds have elapsed since the start of the operation. Next, when 4 seconds or more have elapsed since the start of the operation, the control unit determines whether or not 7 seconds or more have elapsed since the start of the operation (step 8).
The set value is continuously changed at a change amount of 1 V per 0.2 second (step 9). As a result, the set value is changed to 808 V when 4 seconds have elapsed since the operation of the UP key again, and changed to 813 V when 5 seconds have elapsed since the start of the operation. At this time, when the UP key is released, the set value is changed to 813 V, whereby the numerical value change processing ends.

On the other hand, if the set value is close to 813 V when the UP key is released, the display unit displays 813 V in accordance with the difference between the set value and the target set value of 813 V.
Operate the UP key or DOWN key several times until V is displayed. At this time, the UP key or the DOWN key is operated intermittently so that the key repeat function does not operate. Thereby, the upper limit value of the display range is changed to 813V.

As described above, in this waveform display device, the period from 7 seconds to less than 12 seconds from the start of the key operation, and
In a period of more than one second, the set value is changed by a change amount of 10 V and 100 V per 0.5 second, respectively. For this reason,
Even when the setting value is largely changed, the setting change can be completed in a short time. In addition, when seven seconds have elapsed from the start of the operation, the first digit of the set value is rounded up,
When 12 seconds have passed since the start of the operation, 1
By rounding up the 0th digit, for example, 13V, 2
Like 3V, 33V, etc., while leaving the first digit, or 130V, 230V, 330V, etc.
Compared to the case where the change is made while leaving the tenth digit, the set value displayed on the display unit and sequentially changing can be easily recognized. Therefore, U near the target set value
As a result that the P key or the DOWN key can be reliably released, the set value can be easily changed in a short time.
As described above, a measurement device that frequently sets various values in increments of 10 or 100 is particularly effective.

Further, in this waveform display device, the numerical value change interval in the period from 4 seconds to less than 7 seconds from the start of the key operation is set shorter than the period from 1 second to less than 4 seconds from the start of the key operation. Therefore, by adjusting the time for keeping the key pressed according to the difference between the set value and the target set value, it is possible to change to the target set value in a short time. Also, the numerical value change interval is smaller than that of the conventional waveform display device.
0.4 from 1 second to less than 4 seconds from the start of key operation
Since the time is extended by 0.1 second in the period of 4 seconds or more and less than 7 seconds, it is possible to reliably read the set value that is displayed on the display unit and changes sequentially. As a result, the UP key or the DOWN key can be reliably released in the vicinity of the target set value, so that the set value can be changed easily in a short time.

The present invention is not limited to the above embodiment of the present invention. For example, in the embodiment of the present invention, the change amount is set to 1 V, 10 V, and 100 V every predetermined time.
Although an example of changing to V has been described, the present invention is not limited to this, and can be defined as an arbitrary change amount.
Change amounts are 0.1V, 0.5V, 5V, 50V and 10V
It can be changed in an irregular order such as 0V. Also,
In the embodiment of the present invention, the change interval of the set value is 0.
Although the description has been given of the example in which the interval is set to 5 seconds and 0.2 seconds, the present invention is not limited to this, and the change interval can be appropriately changed. Similarly, the first to fourth predetermined times in the present invention can be arbitrarily defined. Furthermore, in the embodiment of the present invention, an example has been described in which the first and tenth digits of the set value are rounded up when 7 seconds and 12 seconds have elapsed from the start of the key operation. The digit at the tenth digit and the digit at the tenth digit may be truncated. In this case, it is preferable to round up when increasing the set value, and to round down when decreasing the set value,
The set value can be changed in a shorter time without giving the operator a feeling of strangeness.

The key repeat function in the present invention is not limited to push-button keys such as an UP key and a DOWN key, but can be applied to, for example, a jog dial or a shuttle dial, and can be used to change various values such as time adjustment. It can be applied to Furthermore, the measuring device according to the present invention is not limited to the waveform display device described in the embodiment of the present invention, and various types of measurement such as a watt-hour meter, an ammeter, a voltmeter, and a waveform recording device that require a numerical value changing operation. Applicable to the device.

[0028]

As described above, according to the measuring device of the first aspect, when the numerical value changing key is continuously operated for more than the second predetermined time, the amount of change is smaller than that before the key. By changing the numerical value with a large change amount, the setting can be changed to the target set value in a short time.

According to the measuring device of the second aspect,
When the numerical value changing key is continuously operated for more than the second predetermined time, the numerical value is changed at a lower speed than the numerical value changing speed before that, so that the visibility is further improved and the Can be changed to the target set value.

According to the measuring device of the third aspect,
When the numerical value change key is continuously operated for more than the third predetermined time, the change amount is changed to a target set value in a shorter time by changing the change amount at substantially the same change amount as before and at a high speed. Settings can be changed.

Further, according to the measuring device of the present invention, when the numerical value changing key is continuously operated for more than the second predetermined time, at least the least significant digit of the numerical value set immediately before the key is operated. By changing the numerical value after rounding up or down, the visibility of the numerical value sequentially displayed on the display unit can be improved, so that the setting can be easily changed to the target set value in a short time and easily.

According to the measuring device of the fifth aspect,
When the numerical value change key is continuously operated for more than the fourth predetermined time longer than the second predetermined time, the numerical value is changed by a larger change amount than the numerical value change amount immediately before the fourth predetermined time. Thus, even when the setting value is largely changed, the setting can be changed to the target setting in a short time.

Further, according to the measuring device of the sixth aspect, the amount of change of the numerical value can be arbitrarily set according to the use condition of the measuring device, whereby the setting can be easily changed to the target set value. Can be.

According to the measuring device of the seventh aspect,
The length of the predetermined time can be arbitrarily set according to the use condition of the measuring device, whereby the visibility is good, and the setting can be changed to the target set value more quickly and easily.

[Brief description of the drawings]

FIG. 1 is a flowchart of a numerical value changing process in a measuring device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a relationship between an elapsed time after an UP key is operated and a numerical value whose setting is changed.

FIG. 3 is a diagram illustrating a relationship between an elapsed time and a numerical value to be changed in a period until seven seconds elapse after an UP key is operated.

FIG. 4 is a diagram illustrating a relationship between an elapsed time in a period from 4 seconds to 12 seconds when an UP key is operated and a numerical value to be set and changed;

FIG. 5 is a diagram showing a relationship between an elapsed time in a period from 7 seconds to 15 seconds when an UP key is operated and a numerical value to be set and changed;

FIG. 6 is a diagram showing a relationship between an elapsed time after an UP key is operated and a numerical value to be changed in a conventional waveform display device.

[Explanation of symbols]

7 Continuous change processing at a change amount of 1 V per 0.5 second 9 Continuous change processing at a change amount of 1 V per 0.2 second 12 Rounding up the first digit 13 Change amount of 10 V per 0.5 second 16 Continuous change processing at a change amount of 100 V per 0.5 second

Claims (7)

[Claims] 1. A measurement device having a function of continuously changing a numerical value to be set and displaying the numerical value on a display when the numerical value changing key is continuously operated for more than a first predetermined time. In the apparatus, when the numerical value change key is continuously operated for more than a second predetermined time longer than the first predetermined time, a change amount larger than a change amount of the numerical value before that time. A measuring device further comprising a function of changing the numerical value. 2. When the numerical value changing key is continuously operated for more than the second predetermined time, a function is provided for changing the numerical value at a lower speed than the changing speed of the numerical value before that. The measuring device according to claim 1, wherein 3. When the numerical value changing key is continuously operated from the start of operation for more than a third predetermined time shorter than the second predetermined time, the key is changed from the first predetermined time. 3. A function of changing the numerical value with a change amount substantially equal to the change amount during the period up to the third predetermined time and at a speed higher than the change speed during the period. Measuring device. 4. When the numerical value changing key is continuously operated for more than the second predetermined time, at least the least significant digit of the numerical value set immediately before is rounded up or down, and then the numerical value is changed. The measuring device according to any one of claims 1 to 3, wherein the measuring device has a function of changing a measurement value. 5. When the numerical value changing key is continuously operated over a fourth predetermined time longer than the second predetermined time, the amount of change of the numerical value immediately before the fourth predetermined time is further increased. The measuring device according to claim 1, further comprising a function of changing the numerical value with a large change amount. 6. The measuring apparatus according to claim 1, further comprising a function capable of arbitrarily setting a change amount of the numerical value. 7. The measuring apparatus according to claim 1, further comprising a function capable of arbitrarily setting the length of the predetermined time.