JP3106601B2 - measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring device, and more particularly to display control of an opening screen in a measuring device configured to display an opening screen when power is turned on.

[0002]

2. Description of the Related Art Many conventional measuring devices provided with a display as a man-machine interface display a setting menu screen or a data display screen immediately after startup by power-on. In recent measurement equipment, it is possible to enhance the product image by displaying the company logo, the name of the measuring instrument, model name, etc. for a few seconds as an opening screen preceding the setting menu screen or data display screen. Is being done. Also, depending on the device, the opening screen may be slowly loaded to give an impact different from the still screen.
It has also been done.

[0003]

By the way, in such a conventional measuring apparatus, every time the power is turned on, the measuring apparatus is turned off every time.
The opening screen is displayed. For this reason, for example, if a short-time power failure (momentary power failure) occurs during the recording operation of the recorder and the power is turned on again, the opening screen is displayed again, and the opening screen is displayed. Means that the recording operation is interrupted. When a momentary power failure occurs in the recorder, it is desirable to restart the recording operation immediately after re-energization, but in the conventional recorder, it was necessary to wait for the opening screen display period.

[0004] The present invention is to solve such a conventional problem, and an object of the present invention is to make it possible to selectively display an opening screen according to the state of the power-off time, thereby shortening the time. An object of the present invention is to realize a measuring device capable of restarting a measuring operation.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a measuring apparatus configured to display an opening screen when power is turned on, and a time measuring means for measuring a time from power-off to power-on, and a measuring method. A display control unit for displaying an opening screen only when the time is longer than the set time.

[0006]

[Operation] The opening screen is displayed only when the time from power-off to power-on is longer than the set time. Thus, by setting the set time to a time commensurate with the instantaneous power failure, the opening screen display time in the case of the instantaneous power failure can be skipped, and the original measurement operation can be resumed in a short time.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention.
In the figure, reference numeral 1 denotes a reference clock unit that outputs a high-precision clock, and supplies a reference clock to a real-time clock unit 2 and a dividing timer-3. The reference clock unit 1 and the real-time clock unit 2 are backed up by a power supply, and keep the current time even when the power is turned off. The frequency division timer 3 divides the reference clock by 1
The CPU 4 is notified by interruption every second. CPU
Reference numeral 4 controls the overall operation and calculates time. Reference numeral 5 denotes a latest time reading buffer, which stores the current time read from the real time clock unit 2 every second. The latest time reading buffer 5 is also backed up by a power supply. Reference numeral 6 denotes a differential time buffer, which stores a differential time between the time stored in the latest time read buffer 5 and the current time read from the real time clock unit 2 when the power is turned on. 7 is a memory,
Opening screen data, measurement condition data, a measurement program, etc. are stored, as well as measurement data.

FIG. 2 shows the CP in the device having such a configuration.
This is a flowchart showing the flow of the operation of U4. After turning on the power (step), it is checked whether or not the power backup has been performed correctly (step). To confirm the power backup, for example, a zero-sum check is performed on data in a specific area of the memory 7 that has been backed up, and if the data is correct, it is determined that the power backup of the entire apparatus has been performed normally. I do. This is because the time measurement of the real-time clock unit 2 may not be correctly performed unless the power backup is performed correctly.

When it is confirmed that the power supply backup has been performed correctly, the current time is read from the real-time clock unit 2 and the difference time from the time stored in the latest time read buffer 5 is calculated (step). Is stored in the difference time buffer 6. This difference time is
It represents the time during which the power was off. If the power backup has not been performed correctly, the time is set to the default, and a sufficiently long time is set as the difference time (step). Then, step,
It is evaluated whether or not the difference time obtained in (1) exceeds a predetermined time (step). If the difference exceeds the predetermined time, an opening screen is displayed (step). -Skip the opening screen display and immediately display the normal measurement operation screen (step). Here, the set time is set to, for example, about 30 seconds.

With this configuration, in the case of a power failure recovery or power-on in a shorter time than the set time,
Since the measurement screen is displayed without displaying the opening screen, the measurement can be performed efficiently.

In the above embodiment, only the power-off time is used as the display condition of the opening screen, but it may be combined with other conditions as needed. For example, in the case of a recorder, if the real-time recording operation was performed immediately before the power was turned off, the opening screen is skipped and the real-time recording is restarted regardless of the difference time length after re-energization. Let it do. The control of the opening screen display by adding other display conditions to the difference time is also included in the scope of the present invention.

As a method of obtaining the power-off time, a timer is provided which automatically resets the counter when the power is turned off and starts time measurement, and reads the count data of this timer when the power is turned on again. You may be able to do it.

[0013]

As described above, according to the measuring apparatus of the present invention, since the opening screen display is controlled based on the power-off time, when the power is turned on again in a short time, it is turned on. -The measurement operation can be restarted without displaying the opening screen.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reference clock part 2 Real time clock part 3 Frequency dividing timer 4 CPU 5 Latest time read buffer 6 Difference time buffer 7 Memory (ROM / RAM)

Continuation of front page (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 1/00 370 G06F 1/00 390 G01D 7/00 G06F 3/14 310

Claims (1)

(57) [Claims] 1. A measuring device configured to display an opening screen at the time of power-on, a time measuring means for measuring a time from a power-off to a power-on, and a measuring time longer than a set time. A display control unit for displaying an opening screen only on the display device.