JPS62215823A - Recorder - Google Patents

Abstract

PURPOSE:To enable the proper recording corresponding to an input signal without using recording paper, by storing the measured signal subjected to A/D conversion and format operational processing and subsequently performing processings such as the enlargement and contraction of a time axis and a scale axis, the sliding of a trend axis or the like to store the processing results in an image memory. CONSTITUTION:A plurality of analogue measured signals from a multiplexer 2 are subjected to format operational processing through an A/D converter 3, an insulating means 5 and CPU 4b of a control unit 4 to be written in the predetermined area of RAM 4d. CPU 4b perform operations such as the enlargement and contraction of a time axis and a scale axis, the sliding of a trend axis or the like on the basis of the writing content corresponding to the setting of a parameter due to an operation key switch 6 and the operation results are stored in the image data of RAM 4d to be displayed on a CRT display apparatus 8. By this method, an input signal can be properly recorded corresponding to the state of the input signal without using recording paper.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Use] The present invention relates to a recorder used in fields such as measurement, and particularly relates to a recorder that displays input analog signals on a screen.

[Prior Art] Conventionally, there are two types of recorders: a direct-acting type and an equilibrating type, and both of these types record data on recording paper by moving a pen based on input data. In addition, there are dot type recorders that replace pens, and hybrid type recorders that perform analog and digital recording on recording paper have also been commercialized.

[Problems to be Solved by the Invention] However, since the above-mentioned recorder records on recording paper, depending on the measurement time, a huge amount of recording paper is required, making it difficult to store and manage the recording paper.

Also, for this type of recorder, especially the multi-pen type,
It has been difficult to make the recording range extremely small (enlarged recording) due to issues such as space and recording width.

This invention was made in view of the above problems.

The purpose is to provide a recorder that can record without using recording paper, and can also record a trend display on a screen set on an arbitrary time axis and on an arbitrary scale according to an input analog signal.

[Means for Solving the Problems] In order to achieve the above object, the recorder of the present invention includes input means for inputting measurement analog signals from a plurality of channels, and sequentially converting the input analog signals into digital signals. A to do
/D conversion means, calculation means for formatting and processing the digital signal, and storage means for storing the processed data.

a display processing means for processing a part of the recorded data for trend display, digital display processing, and processing for displaying a setting screen for one display; an image memory for storing the display-processed data for display; display means for displaying data based on data stored in an image memory; A/D conversion, arithmetic processing, and storage of measurement analog signals input from the input means;
Display processing.

and a control means for controlling a display operation, the recorder displays a measurement analog signal inputted from the input means as a trend on the display stage and displays it digitally, the display processing means is configured to display the time on the display screen. Expand the axes and scale axes,
1a comprises a time axis calculation process and a scale calculation process for setting a smaller screen, and a slide calculation process for sliding the trend display along the scale axis, and a slide calculation process for sliding the trend display along the scale axis; Have you enlarged or reduced the screen of the display means and made it possible to slide the trend display on the screen? This is a characteristic feature.

[Function] The recorder of the present invention A/D converts measurement analog signals input from a plurality of channels, performs format calculation processing on this digitally converted signal, stores it, and then performs an A/D conversion based on the stored data. Display processing for trend display and digital display is performed on the display device. In this display processing, further enlargement in the time axis and scale axis directions,
Screen settings such as reduction and slide processing in the scale axis direction of trend display are performed. This display-processed data is stored in an image memory, and the stored data is transferred to a display control device, becomes a video signal, and is input to the display device, where it is displayed as a trend on its screen. These displays are displayed for a predetermined time period, and after the predetermined time period, the old display disappears and instead a trend display is performed based on the data of the currently measured analog signal.

[Example 1 Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a circuit block diagram of a recorder according to the present invention. In FIG. 0, 1 is an input terminal section (input means) having a plurality of channels CHI" CHn into which measurement analog signals of temperature, flow rate, and pressure 1 are input. and this input terminal part l
The analog signals input to the A/D converter 3 are sequentially input to the A/D converter 3 by the multiplexer 2, and the analog signals input to the RA4
Control signals from the converter are converted into digital signals using a sequential capture method if the speed is low, or a simultaneous capture method if the speed is high. This multiplexer 2 is a type of input selection switch for sequentially switching and inputting a plurality of input analog signals to the A/D converter 3.

The digital signal (data) converted by the A/D converter 223 is input to the control device 4 via the insulating means 5. control g
The l unit 214 is a ROM 4c that stores an I10 port 4a, a CPU 4b for processing calculations and control, a progera for processing calculations and control, and the like.

RAM4d in which data, etc. that have been subjected to calculation and control processing are stored.
(storage means) etc.

Note that this RAM4d is provided with an image memory (video RAM) fi area for storing 270 CR7 display data, and an external memory (such as a floppy disk, which will be described later) may be provided separately from the RAM4d. .

This control device 4 receives signals from an operation key switch 6 for setting measurement condition parameters, etc. arranged on the front side of the recorder shown in FIG. CR data controls CRT display
It is output to the T display control device 7. Based on the display data and control signals, the CRT display control device 7 outputs display data (video signal) to the CR7 display device 8 (display means).

Further, data to be semi-permanently stored on a floppy disk or the like is sent from the control device 4 to the auxiliary memory via the I10 port 4a. ! Installation: Output to a9.

In this case, the auxiliary storage device 9 includes a floppy disk control device 9a, a floppy disk drive device 9b':l
It is composed of f. The A/D conversion device 3, the operation key switch 6, the CR7 display control device 7, and the control device 4
Data, control signals, etc. are exchanged with the bus via the I10 port h4a.

Next, the operation of the recorder having the above configuration will be explained based on the flowchart shown in FIG.

First, the control device 4 performs initial settings. In this initial setting, settings of measurement condition parameters, etc. are set using signals from the operation key switch 6, for example, in response to the measurement analog signal input to the input terminal section 1. 0th, by the control signal from the CPU 4b.

The measurement analog signal input at a predetermined sampling time is sent to multiplexer 2, A/D converter r! The digital signal is converted into a digital signal in step 13 and taken in via step 10 port) 4a (step 5TI), and the taken digital signal is subjected to format calculation processing such as linearization, scaling, and dimensioning (step 5T2). The formatted data is stored in a predetermined area of the RAM 4d (step 5T3). Measurement analog signals are input from all of the predetermined channels, and these are A/D converted and stored in a predetermined memory area of the RAM 4d (step 5T3). Steps 5TI-3T2-5T3 are repeated until the data is stored in the memory (step 5T4).

Next, the data stored in the RAM 4d is displayed for CRT display (step 5T5). If trend display is set for the screen display in the above initial settings, the data stored in the RAM 4d is Processing for trend display is performed (step 5T5), and first time axis calculation processing is performed (step 5TY). For example, as shown in screen 8a in FIG. 4, the full scale of the vertical axis is 3.
0th order to set the screen to be the time.

Depending on the input measurement quantity, scale calculation processing is performed based on the dimension processing etc. performed in step ST2 above (step 5T7). For example, when the measurement quantity is temperature, the horizontal axis as shown in screen 8a of FIG. The screen is set so that the full scale of the screen is 1200°C, and then the horizontal axis slide calculation process is performed based on the initial setting or the operation of the operation key switch 6 (step 5T8).
If this slide arithmetic processing is not set, coordinate processing is performed to display the measured analog signals input from each of the four channels as a trend within the full scale set in steps STY and ST7. That is, the processed data is subjected to display coordinate processing in order to be stored in a predetermined location in the image memory as display data (step 5).
T9).

The data stored in this image memory is I10)4a
The signal is transferred to the CRT display control device fi7 through the screen memory, further converted into a color video signal, etc., and displayed as a trend on the CR7 display device 8 (step 5TIO).
Then, the above operation is repeated, display data for one screen (for example, from the current time to three hours ago) is stored in the image memory, and this display data is displayed as a trend on the CR7 display device 8. Furthermore, as time passes, the display data (old data) stored in the image memory a predetermined period of time ago (for example, 3 hours) is cleared, and the CFiT display? :, disappears from the screen at position 8, and instead the next new display data is stored in the image memory, and this display data is displayed on the CRT display 18. The CRT display device 8 always displays a trend corresponding to the measured analog signal from the current time up to a predetermined time (3 hours) ago. This trend display is shown as a plurality of temporal change curves as shown in the screen 8a of FIG. 4, and is the same as when recording on conventional recording paper.

Further, in step ST3, the data before the predetermined time is stored in a memory or an external memory (floppy disk, etc.), and the data is read out from this memory and subjected to the above processing.
can be reproduced.

Note that the display of the time axis is not limited to the elapsed time, and the time may be displayed.

On the other hand, if the vertical (time) axis and horizontal (scale) axes are set to be enlarged by initial settings or by operation of the operation key switch 6 (1) For example, if both the vertical and horizontal axes are enlarged, For the screen 8a in FIG. 4, time axis calculation processing is performed to set the full scale of the vertical axis to 2 hours (step 5T6), and scale calculation processing is performed to set the full scale of the horizontal axis to 800 degrees Celsius (step 5T7). ), and after these processes, the coordinate calculation process described above is performed (step 5T9).
, an enlarged trend display as shown in screen 8a in FIG. 5 is displayed on the CRT display (step 5TIO). In addition,
What is the expansion of this horizontal axis for each chi? Only a specific channel #≠ may be used depending on the measurement quantity input from 1 to 1, and the range of enlargement can be arbitrarily set by initial setting and operation of the operation key switch 6.

In addition, if the vertical (time) axis and horizontal (scale) axis reduction processing is set by the initial settings or by operating the operation key switch 6, the reverse processing of the above-mentioned enlargement processing will be performed. When both the axis and horizontal axes are reduced,
The full scale of the vertical axis for screen 8a in Figure 4 is 4.5.
Step ST6. is arithmetic processing in which the full scale of the horizontal axis is set to 1600'O. It is executed in ST7. After these processes, the coordinate calculation process described above is performed (step 5T).
9), CRT display display aa +: A reduced trend display as shown in screen 8a in FIG. 6 is performed (step 5T).
Note that this reduction on the horizontal axis may be performed only on a specific channel depending on the measured amount from each channel, or the reduction range may be set at the initial setting or arbitrarily by operating the operation key switch. good.

On the other hand, if slide calculation processing has been set by the initial settings or by operating the operation key switch 6, for example, in step ST8, the trend display based on the measured analog signals from three channels as shown in FIG. Of these, 2 channels are heated to 200℃ and 400℃, respectively.
If it is set to slide, the arithmetic processing for the slide is performed. After this slide calculation processing, the aforementioned coordinate calculation processing is performed on the slide processed data (step 5T9).

A trend display as shown in the screen 8a in FIG. 7 is displayed on the CR7 display device 8 (step 5TIO), that is, if the m'i amounts input from multiple channels are close to each other, slide the trend display. This can prevent overlapping. Also.

This slide calculation process allows multiple trend displays to be recorded in parallel. Further, scales may be set for each channel in parallel.

Furthermore, after performing the above-mentioned enlargement and reduction operations on the vertical and horizontal axes, a slide calculation process may be performed on the trend display.

Note that the display means is not limited to the CRT display device, and may be other display devices such as a liquid crystal display device.

[Effects of the Invention] As explained above, according to the recorder of the present invention, the display external push means for displaying trends etc. on the screen performs time axis calculation processing and setting on the screen with the time axis and scale axis enlarged or reduced. comprising scale calculation processing and slide calculation processing for sliding the trend display along the scale axis,
The screen of the display means is enlarged or reduced in accordance with the measurement analog signal inputted from the input means, and the trend display on the screen is slid, so that when one screen is reduced, the screen can be displayed for a long time. The trend is displayed, allowing you to see at a glance the trend of long-term input changes.

When you enlarge the screen, you can see instantaneous input changes like a memory scope.If the measured quantities input from multiple channels are close to each other, you can display multiple trends without overlapping the trend displays. Can be done in parallel. Further, according to the present invention, a huge amount of data can be recorded in the memory, for example, semi-permanently on a floppy disk of auxiliary memory, and a desired image can be immediately reproduced.

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram of a recorder showing an embodiment of the present invention, FIG. 2 is an external view showing the front of the recorder, FIG. 3 is a flowchart showing the operation of the recorder, and FIG. FIG. 7 shows an example of the display on the screen of the recorder,
Figure 5 is a screen diagram of the screen in Figure 4 that has been subjected to enlargement calculation processing, Figure 6 is a diagram that has been subjected to reduction calculation processing of the screen of Figure 4, and Figure 7 is a screen diagram that has been subjected to slide calculation processing of the trend display in Figure 4. be. DESCRIPTION OF SYMBOLS 1... Input terminal part (input means), 3... A/D conversion device a (A/D conversion means), 4... Control device, 4b.
...CPU (arithmetic/control processing means), 4c...ROM
. 4d...RAM (noted t!!-r=stage image memory), 8
. . . CRT display device (display means), 8a . . . screen. Patent applicant Chino Seisakusho Co., Ltd. Figure 4 Figure 5 a

Claims (1)

[Scope of Claims] Input means for inputting measurement analog signals from a plurality of channels, A/D conversion means for sequentially converting the input analog signals into digital signals, and calculation means for formatting and processing the digital signals. , a storage means for storing the arithmetic processed data, a display processing means for processing a part of the stored data for trend display, digital display processing, and displaying a setting screen for display; an image memory for storing data for displaying; a display means for displaying data based on the data stored in the image memory; A/D conversion, arithmetic processing, and storage of measurement analog signals input from the input means; A recorder comprising display processing and a control means for controlling the display operation, and displays a measurement analog signal inputted from the input means on the display means as a trend and digitally, the display processing means is a display screen. and a slide calculation process for sliding the trend display along the scale axis, and a slide calculation process for sliding the trend display along the scale axis. A recorder characterized in that the screen of the display means is enlarged or reduced in accordance with the measured analog signal, and the trend display on the screen is slid.