JPH0543969B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a data storage method for a memory recorder, and more specifically, to a memory card as an external storage means for storing part of the waveform data stored in the main body memory. The present invention relates to a data storage method that allows data to be stored in, etc.

[Conventional example]

The memory recorder is equipped with a memory of a predetermined capacity, and the input signal from the measuring section is A/
After being converted into D, it is stored in the same memory (hereinafter referred to as main body memory) and displayed on a printer or monitor as necessary.

Recently, it has become possible to connect external storage means such as floppy disks and memory cards (IC cards), making it possible to store more data.

[Problem to be solved by the invention]

By the way, when data in the main body memory is saved in an external storage means, conventionally, all data in the main body memory must be transferred to the external storage means, so data other than what is needed is also saved. It is uneconomical.

The present invention was made in view of the above-mentioned conventional circumstances, and its purpose is to provide a data storage method for a memory recorder that allows a portion of data specified by a cursor on a monitor to be stored in a memory cursor or the like. It is in.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a waveform input means including an A/D converter, a main body memory that stores waveform data from the waveform input means, and a main body memory that stores waveform data stored in the main body memory. The waveform display means includes a waveform display means such as a CRT for displaying, an external storage means such as a memory card selectively connected to the memory recorder, and a cursor position control means for controlling the position of a cursor on the waveform display means. In the memory recorder, the voltage axis direction of the display screen of the waveform display means is arranged in a matrix form with i rows and the time axis direction is j columns, and the waveform data stored in the main body memory is made to correspond to the i rows and j columns. In addition to displaying the waveform data on the same display screen, the corresponding address data in the main body memory is obtained from the indicated position of the cursor in the J column, and waveform data within a desired range from the indicated address is stored in the external storage means. It is characterized by

[Effect]

According to the above method, if the number of data stored in the main body memory is N, the memory area is N/
The screen is divided into j parts and displayed on the screen in the i row and the j column. Therefore, the time axis of the display screen is j
Since the position of the column corresponds to the address position of the main body memory, by specifying the position with the cursor, it becomes possible to transfer only the desired data in the main body memory to the external storage means.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a schematic block diagram of this memory recorder. According to this, the memory recorder is equipped with waveform input means 1 including an A/D converter that converts an analog input signal from a measuring section (not shown) into a digital signal. A main body memory 2 is connected to this waveform input means 1 . In this case, the main body memory 2 is assumed to have a memory area from address 0 to address n-1, as illustrated in FIG.

For example, a memory card 3 as external storage means is connected to this memory recorder via a socket (not shown). The memory recorder also has a waveform display means (monitor) 4 and a memory area specifying means 5 for moving a cursor on the monitor 4 to specify a memory area of the main body memory 2 to be saved in the memory card 3. There is. This designation signal from the memory area designation means 5 is input to the control means (CPU) 6, and the CPU 6 transfers the designated waveform data from the main body memory 2 to the memory card 3 based on this.
Transfer to.

The monitor 4 may be a CRT display or a liquid crystal display, but according to the present invention, the display screen 4a of the monitor 4 has its voltage axis (Y axis) aligned in i rows, as shown in FIG. and the time axis (X
It is assumed to be in a matrix state of i rows and j columns with the j column on the axis). Further, referring to FIG. 4, the memory area specifying means 5 includes a cursor specifying switch 5a for specifying either cursor A or B displayed on the display screen 4a of the monitor 4, and a cursor specifying switch 5a for specifying one of the cursors A and B displayed on the display screen 4a of the monitor 4, and a switch for moving the cursor to the right. A first cursor movement switch 5b for moving the cursor, a second cursor movement switch 5c for moving the cursor to the left, and a specification end switch 5d for instructing the end of specification, and each of these switch signals is sent to the I/O port. Above CPU through 7
6.

When displaying the waveform data stored in the main body memory 2 via the waveform input means 1 on the display screen 4a of the monitor 4, the CPU 6 uses the memory area as
It is divided into equal parts and divided into a predetermined number of groups. That is, the fifth
As shown in the figure (for convenience of explanation, the display screen 4a is rotated 90 degrees to the right), memory areas 0 to n-1 of the main body memory 2 are shown.
The address is divided into j equal parts, in this example, 0 to n/j
The data at address -1 will be displayed in the first column of the display screen 4a, and the data at addresses n/j to 2n/j-1 will be displayed in the second column of the display screen 4a. In this way, each group's data is displayed in its corresponding column, and the final j-th column contains (j-1)n/j~
Data at address n-1 is displayed.

According to this invention, part of the data in the main body memory 2 is stored in the memory card 3 in the following manner,
This will be explained with reference to the flowchart of FIG.

First, in step ST1, all data in the main body memory 2 are divided into groups as described above and then displayed on the display screen 4a. Next, variables x and y indicating the indicated row positions of cursors A and B are initialized (step ST2), and cursors A and B are
column, y column position (step ST3). And the specification ends in step ST4? That is, it is determined whether the specification end switch 5d is at H level, and if the specification is not completed, it is determined in step ST5 whether or not there is an instruction to select and move cursors A and B by the switches 5a to 5c, and the above variables are set according to the direction and amount of movement. After changing the values of x and y (steps ST6a and 6b), the process returns to step ST3. When it is determined in step ST4 that the specification has been completed,
Proceeding to step ST7, data addresses l and m in the main body memory 2 corresponding to the column variables x and y are calculated. In this case, data address l is (x-1)
n/j, and m becomes y(n-1)/j. Then, in the next step ST8, the CPU 6 transfers the data addresses l to m, that is, the waveform data specified by the cursors A and B, to the memory card 3.

Although the above embodiment uses two cursors A and B, it is also possible to use one cursor and specify the number of columns in the range to be transferred starting from that cursor using a digital switch (not shown), for example. . Furthermore, a floppy disk may be used as an external storage means instead of a memory card.

〔Effect of the invention〕

As explained above, according to the present invention, while viewing the waveform displayed on the monitor, it is possible to save only the waveform of a necessary part to an external storage means, for example, a memory card, which is therefore economical. Data can be stored efficiently and efficiently.

[Brief explanation of drawings]

Fig. 1 is a schematic block diagram of a memory recorder used for carrying out the present invention, Fig. 2 is an explanatory diagram showing the memory area of the main body memory, and Fig. 3 is an example of data display on the display screen of the monitor. Explanatory diagram shown, 4th
The figure is an explanatory diagram showing the correspondence between the memory area of the main body memory and the display screen of the monitor, FIG. 5 is a switch wiring diagram of the memory area designating means, and FIG. 6 is an operation flowchart of the present invention. In the figure, 1 is a waveform input means, 2 is a memory, 3 is a memory card, 4 is a waveform display means (monitor), 5 is a memory area designation means, and 6 is a CPU.

Claims (1)

[Claims] 1. Consists of a waveform input means including an A/D converter, a main body memory for storing waveform data from the waveform input means, and a CRT, etc. for displaying the waveform data stored in the main body memory. A memory recorder comprising a waveform display means, an external storage means such as a memory card selectively connected to the memory recorder, and a cursor position control means for controlling the position of a cursor on the waveform display means, The voltage axis direction of the display screen of the waveform display means is i
The waveform data stored in the main body memory is arranged in a matrix of rows and j columns in the time axis direction.
At the same time, the corresponding address data in the body memory is obtained from the indicated position of the cursor regarding the j column, and waveform data within a desired range from the indicated address is stored in the external storage means. A method for storing data in a memory recorder, characterized in that data is stored in a memory recorder.