JP2551444B2 - Recorder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recorder, and more specifically, to setting a recording range of a recorder for recording a measured value of a physical quantity in an arbitrary recording range of recording paper. It is about.

(Prior Art) One type of recorder is one configured to record a measured value of a physical quantity in an arbitrary recording range of a recording paper.

FIG. 3 is an explanatory diagram of a configuration of a main part of such a conventional recorder. In FIG. 3, reference numeral 1 is an input terminal for an analog measurement signal. The analog measurement signal applied to the input terminal 1 is normalized to a certain size by the amplifier 2 whose gain is adjusted according to the measurement range, and then applied to the A / D converter 3 to be converted into a digital signal. This digital signal is temporarily stored in the measured value memory 4. 5 is a display for digitally displaying the measurement conditions and the measured values, 6 is a recording section for recording the magnitude of the measured values on a recording paper in an analog manner by a continuous line by a recording pen or a dot pattern by the recording head, and 7 is a measurement condition. The keyboard to set. Reference numeral 8 denotes a first reference position memory that stores reference position data at one end of a movable recordable range of a pen carriage on which a recording pen and a recording head of the recording unit 6 are mounted, and 9 indicates other movable recordable range of the pen carriage. This is a second reference position memory for storing end reference position data, and a nonvolatile memory such as an EEPROM is used as each of these reference position memories 8 and 9. Here, assuming that the pen carriage is step-driven by a stepping motor, the reference position memory 8 stores the step position data of the pen carriage corresponding to the 0% scale line of the recording paper, and the reference position memory 9 records the position data. paper
The pen carriage step position data corresponding to the 100% scale line is stored. Reference numeral 10 is a first span memory that stores data defining one end of the recording range on the recording paper, and 11 is a second span memory that stores data defining the other end of the recording range on the recording paper, which is rewritable Use memory. Reference numeral 12 denotes an arithmetic control unit that performs various calculations related to measurement and controls the operation of each unit of the apparatus, and is connected to each component via a bus 13.

FIG. 4 is an explanatory view of a usage state of the recorder constructed as described above. In FIG. 4, 14 is a physical quantity measuring instrument having a weighing function of, for example, 0 to 10 kg. This physical quantity measuring instrument
The detection signal of 14 is applied to the converter 15, and the weighing detection signal of 0 to 10 kg is converted into a voltage signal of 1 to 5 V, for example. The converted output signal of the converter 15 is applied to the recorder 16 and its size is recorded on the recording paper in an analog manner.

Here, as the recording mode of the recorder 16, for example, as shown in FIG. 5, the measurement range is set to 5 V and 0% of the recording paper is set.
100% can be set to 5V as 0V. When setting such a span, set the span memory 10 to 0% of the recording paper.
“0.00” is stored as the span left data in association with the position, and “5.00” is stored as the span right data in association with the span memory 11 at the 100% position of the recording paper. However, with such a setting, the measured physical quantity OKg corresponds to 20% of the recording paper, and it is difficult to intuitively read the size of the measured physical quantity from the recording result.

Therefore, for example, as shown in FIG. 6, 0% of the recording paper is
It is also practiced to set 100% to 5V as 1V. With this setting, the measured physical quantity OKg corresponds to 0% of the recording paper and 10 kg corresponds to 100%, and the measured physical quantity can be intuitively read from the recording result.

By the way, in the configuration of FIG. 4, it is assumed that the conversion voltage at the time of OKg measurement becomes 1.087V and the conversion voltage at the time of 10Kg measurement becomes 4.982V due to the error of the converter 15. When the converted output in such a state is recorded by the recorder set as shown in Fig. 6, the converted voltage at OKg measurement is recorded as 1.087V on the recording paper as shown in Fig. 7, and at 10Kg measurement. The converted voltage of will be recorded as it is as 4.982V. That is, such a recording result on the recording paper contains an error, and it is impossible to read an accurate value of the measured physical quantity from the recording result with the setting as it is.

Such inconvenience can be solved by setting 0% of the recording paper as 1.087V and 100% as 4.982V as shown in FIG.

Conventionally, when setting such a span, the operator has set the output voltage 1.087V of the converter 15 at the time of OKg measurement to the indicator 5
From the read keypad, the ten keys provided on the keyboard 7 are operated to store "1.087" as span left data in the span memory 10 associated with 0% of the recording paper, and
Read the output voltage 4.982V of the converter 15 at the time of 0Kg measurement from the display 5 and operate the ten-key on the keyboard 7
"4.982" was stored as span write data in the span memory 11 associated with 0%.

(Problems to be solved by the invention) However, according to such a conventional configuration, the operator reads the display data of the display unit and inputs the read value by operating the ten keys of the keyboard to set the recording range. However, the operator's operation becomes complicated and an input error may occur.

The present invention focuses on these points, and an object thereof is to provide a recorder capable of automatically setting a recording range.

(Means for Solving Problems) According to the present invention, in a recorder for recording a measured value of a physical quantity in an arbitrary recording range of a recording paper, first measurement data and second measurement data of a physical quantity are temporarily stored. A buffer memory, a first span memory for storing the first measurement data stored in the buffer memory as data defining one end of the recording range, and a second span for storing the second measurement data stored in the buffer memory The second span memory that stores the data that defines the end, the display that displays the first measurement data and the second measurement data that are stored in the buffer memory, and the buffer memory that is operated according to the display result of the display. Function keys that specify whether or not to transfer measured data to each span memory, and between these memories according to the operation of the function keys. The data transfer control unit for controlling the transfer of that data, characterized in that it consists of a city.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a structural explanatory view showing an embodiment of the present invention.
The same parts as those in FIG. 3 are designated by the same reference numerals. In FIG. 1, reference numeral 17 is a buffer memory for temporarily storing the first measurement data and the second measurement data of physical quantities. The first measurement data stored in the buffer memory 17 is transferred and stored in the first span memory 10 associated with, for example, the 0% position of the recording paper as data defining one end of the recording range. The second measurement data stored in (1) is transferred and stored in the second span memory 11 associated with, for example, the 100% position of the recording paper, as data defining the other end of the recording range. The data transfer control between these memories is executed by, for example, an operator operating the function keys provided on the keyboard 7 while observing the display contents of the display 5 and inputting a trigger signal to the arithmetic control unit 12. It

FIG. 2 is a flow chart showing the flow of operation for setting the recording range of such an apparatus. That is, when setting the data at the left end (span left end) of the recording range,
First, select whether to set automatically. When the automatic setting mode is not selected, the operator operates the ten keys on the keyboard 7 to store desired data in the span memory 10 as in the conventional case. When the automatic setting mode is selected, the voltage you want to set at the left end of the recording range for input terminal 1 (for example, OKg
The output voltage of the converter 15 in the measuring state) is added and measurement is performed. Then, this measured value is temporarily stored in the buffer memory 17.
After that, the data stored in the buffer memory 17 is transferred and stored in the span memory 10. When setting the data at the right end (span write end) of the recording range, first select whether or not it is automatic setting. When the automatic setting mode is not selected, the operator operates the ten keys of the keyboard 7 to store desired data in the span memory 11 as in the span left end setting. If you select the automatic setting mode,
The voltage to be set at the right end of the recording range at input terminal 1 (for example,
The output voltage of the converter 15 in the 10Kg measurement state) is applied and the measurement is performed. Then, this measured value is temporarily stored in the buffer memory 17. After that, the data stored in the buffer memory 17 is transferred and stored in the span memory 11.

By automatically setting the recording range in this way,
It is not necessary to input data by an operator's ten-key operation as in the past, and the recording range can be set accurately and quickly. Then, the recording result after such automatic setting becomes the same as that in FIG. 8 described above, and even if the converter 15 has some error, the conversion is performed as long as the linearity of the converter 15 is maintained. Accurate recording results can be obtained without recalibrating the instrument.

It should be noted that in the above embodiment, the span memory 10 is set to 0 for recording paper.
% Is associated with the position, and the span memory 11 is 100% of the recording paper.
I explained that it was associated with the% position,
The correspondence relationship between each of the span memories 10 and 11 and the% position of the recording paper can be changed appropriately. In changing such correspondence, it is only necessary to separately provide a rewritable memory area for arbitrarily setting the correspondence between the span memories 10 and 11 and the% position of the recording paper.

(Effects of the Invention) As described above, according to the present invention, it is possible to realize a recorder capable of automatically setting the recording range, and the practical effects are great.

[Brief description of drawings]

FIG. 1 is a structural explanatory view showing an embodiment of the present invention, FIG. 2 is a flow chart showing a flow of an operation of setting a recording range of the apparatus of FIG. 1, and FIG. 3 is a structure of a main part of a conventional recorder. Illustration,
FIG. 4 is an explanatory view of the usage state of the recorder, and FIGS. 5 to 8 are explanatory drawings of the recording range. 1 ... Analog measurement signal input terminal, 2 ... Amplifier, 3 ...
… A / D converter, 4 …… Measured value memory, 5 …… Display, 6
…… Recording unit, 7 …… Keyboard, 8,9 …… Reference position memory, 10,11 …… Span memory, 12 …… Computation control unit, 13 ・ ・ ・
… Bus, 17… buffer memory.

 ─────────────────────────────────────────────────── ─── Continuation of the front page Jury Chief Judge Shun Terao Judge Katsumi Enari Judge Yoshiyuki Shimonaka (56) References JP58-19998 (JP, A) JP58-96399 (JP, A) JP 59-7209 (JP, A)

Claims (1)

(57) [Claims] 1. A recorder for recording a measured value of a physical quantity on an arbitrary recording range of a recording paper, a buffer memory for temporarily storing first measurement data and second measurement data of a physical quantity, and a buffer memory A first span memory for storing the first measurement data as data defining one end of the recording range, and a second span data stored in the buffer memory for storing the second measurement data as data defining the other end of the recording range. 2 span memories, a display for displaying the first measurement data and the second measurement data stored in the buffer memory, and operation of the display data displayed on the display to transfer the measurement data from the buffer memory to each span memory Function key that specifies the necessity of data, and the data that controls data transfer between these memories according to the operation of the function key. Transfer control unit, recorder, characterized in that it consists of a city.