JPH0469323B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a multi-point recording device that records the magnitudes of a plurality of analog input signals as dot patterns.

[Prior Art] Conventionally, as an example of this type of device,
Pages 9 to 13 of Yokogawa Technical Report (Vol.25.No.4) published by Yokogawa Electric Manufacturing Co., Ltd. on April 20th.
There is a device mentioned on the page. This is configured to digitally display the magnitude of analog input signals selectively sent out from the scanner, and to record this in analog form using a dot pattern of a predetermined color corresponding to each measurement point. .

FIG. 1 is a block diagram showing an example of such a multi-point recording device. In the figure, 1 ₁ to 1 _o are input terminals to which analog input signals are applied, and 2 is input terminal 1.
A scanner that sequentially selects and sends out analog input signals applied to ₁ to 1 _o , 3 an amplifier that amplifies the analog output signal of the scanner 2 to a predetermined size, and 4
5 is an A/D converter that converts the output signal of the amplifier 3 into a digital signal, 5 is a first memory that temporarily stores the output signal of the A/D converter 4, 6 is a recording paper, and 7 is a
8 is a paper feeding mechanism using, for example, a pulse motor to move the recording paper 6; 8 is a drive circuit for the paper feeding mechanism 7;
Reference numeral 9 denotes a recording head for recording multicolor dots in predetermined colors corresponding to input signals on the recording paper 6; 10 a driving circuit for the recording head 9; and 11, the recording head 9 is arranged perpendicularly to the feeding direction of the recording paper 6. A recording head moving mechanism using, for example, a pulse motor, performs raster scanning in the direction; 12 is a scanning circuit that sends out a signal for driving the recording head moving mechanism 11 and also sends out a digital signal related to the position of the recording head 9; 13 is a scanning circuit; a second memory, 14, for temporarily storing the digital signal sent out from the circuit 12;
15 is a memory that stores characters, signals, etc. as dot patterns; 16 is a display that digitally displays information related to measurement; and 17 is a display 16.
18 is a keyboard for setting the operating mode of the device, type of input signal, measurement range, recording range, alarm setting value, paper feed speed, etc.;
2 is an interface for the keyboard 18, 20 is an input/output port, 21 is a battery for backing up the memories 5 and 13, 22 is an alarm circuit for detecting a voltage drop in the battery 21, and P is a panel. In addition,
At least one end of the recording head 9 or the scan area of the recording head 9 generates an end signal when the recording head 9 reaches the end of the scan area, and resets the position data of the recording head 9. End detection means are provided, but are not shown here.

FIG. 2 is a block diagram showing a specific example of a wire dot head used as the recording head 9. As shown in FIG. As shown in the figure, the recording head 9 is fed along the feeding direction of the recording paper 6, and the ink ribbon 9A is dyed in a plurality of colors in the longitudinal direction. The dot mechanism 9B is arranged in a direction perpendicular to the feeding direction of the recording paper 6 and transfers dots of a predetermined color of the ink ribbon 9A onto the recording paper 6 by selective driving.

In such a configuration, the analog signals applied to the input terminals 1 ₁ to 1 _o are controlled by the scanner 2 controlled by the arithmetic control circuit 14 at a rate of, for example, 0.15 per point.
The signals are sequentially selected at a period of seconds and applied to the amplifier 3. In addition, for example, 0 to 50V is applied to input terminals 1 ₁ to 1 _o .
A DC voltage of 0 to 300 Ω or a resistance signal of 0 to 300 Ω is applied. As the amplifier 3, for example, a programmable gain amplifier is used, and its gain is controlled in conjunction with the scanner 2 by the arithmetic control circuit 14 so that the output signal falls within the range of, for example, 0 to 2V, regardless of the magnitude of each analog input signal. controlled. The analog output signal sent out from amplifier 3 is A/
It is converted into a digital signal by the D converter 4 and stored in the first memory 5. This data is linearized according to the type of input and stored as a display and logging signal, as well as a trend recording signal in 0.1mm steps.
In order to correspond to the 150mm width, it is converted to a numerical value between 0 and 1500 and stored. In addition, these Sukiyana 2,
A section consisting of an amplifier 3 and an A/D converter 4 is connected to other digital sections via a photocoupler. This allows the analog part and the digital part to be completely electrically isolated. The recording paper 6 is intermittently fed by a predetermined amount by a paper feeding mechanism 7 controlled by an arithmetic control circuit 14, for example, each time the recording head 9 is scanned. The recording head 9 is raster scanned in a direction perpendicular to the feeding direction of the recording paper 6 by a recording head moving mechanism 11 controlled by an arithmetic control circuit 14 at a rate of, for example, 0.1 mm/step when the recording paper 6 is stopped being fed. . This position of the recording head 9 is converted into a digital signal and temporarily stored in the second memory 13. In the trend mode, the arithmetic control circuit 14
All data corresponding to the input signal stored in the first memory 5 and data corresponding to the position of the recording head 9 stored in the second memory 13 are read out and stored in the first memory 5. Data with the smallest difference from the data stored in the second memory 13 is detected from among the data. Then, the recording head 9 is moved along the scanning direction according to the difference, and when the difference becomes zero, a control signal is sent to the recording head 9 to record dots of a predetermined color. Note that when sending out this control signal, for example, each input signal stored in the first memory 5 is connected to each element of the recording head 9 that records a predetermined color assigned to each input terminal. The recording position for each color is corrected by adding or subtracting the phase difference signal with respect to the reference element. Furthermore, during recording, two or more colors are mixed as necessary. By performing such operations sequentially during one scan of the recording head 9, the magnitude of each input signal can be recorded in analog dots in a predetermined color. In the logging mode, the recording head 9 is controlled to digitally record the magnitude of each input signal, for example in a single color. In the trend mode and logging mode, the display 16 is controlled to digitally display the magnitude of each input signal at a cycle different from the switching speed and recording speed of the scanner 2. In addition, the arithmetic control circuit 14 controls to digitally record the magnitude of the input signal only once in the trend mode, controls to tabulate and record measurement setting conditions, and changes the setting values of various parameters using the keyboard 18. It also controls the
Note that these various control operations are executed based on a predetermined program.

With this configuration, the recording head 9
While the is moving from one end of the scan area to the other, and also while returning from the other end to one end as necessary, the magnitude of the input signal applied to each input terminal is adjusted to a predetermined value corresponding to each input terminal. It can be recorded in analog form as a colored dot pattern, and can also be displayed digitally on a display.

However, in such a conventional device, it is not possible to record one line unless the recording head 9 is moved over the entire recording width, so the upper limit of the recording speed is determined by the feed speed of the recording head 9. Because of this, high-speed recording cannot be performed.

[Purpose of the invention]

An object of the present invention is to eliminate the drawbacks of the conventional apparatus as described above and to realize a multi-point recording apparatus with a high recording speed using a simple configuration.

[Summary of the invention]

The multi-point recording device of the present invention has, as its recording means, a knife edge arranged in the recording width direction, an ink ribbon dyed in a plurality of colors in the longitudinal direction and arranged along the knife edge, and a recording paper perpendicular to the knife edge. and a plurality of print edges arranged opposite to this via an ink ribbon, and a recording mechanism configured to perform dot recording at the intersection of the knife edge and the print edge while scanning the print edge in the recording width direction. This system uses a printer that reduces the time required for one scan depending on the number of print edges, realizing faster recording operations.

〔Example〕

Hereinafter, a detailed explanation will be given using the drawings.

FIG. 3 is a configuration diagram showing an embodiment of the recording mechanism portion of the multi-point recording apparatus of the present invention. In the figures, the same parts as in FIGS. 1 and 2 are designated by the same reference numerals. KEG is a knife edge arranged in the recording width direction, PE1 to PE6 are print edges arranged orthogonally to the knife edge KEG, and DR1 to DR6 are print edges PE.
CAS is a ribbon cassette that stores the ink ribbon 9A. Print edges PE1 to PE6 are arranged at equal intervals,
It faces the knife edge KEG via the ink ribbon 9A and the recording paper 6, scans the recording paper 6 in the direction of the arrow a, and moves by a distance equal to the arrangement interval. Further, the ink ribbon 9A is arranged along the scanning direction of the print edges PE1 to PE6, and is wound up via a ribbon cassette CAS and circulated endlessly. Printed edges PE1 to PE6 and solenoids DR1 to DR
6. The ink ribbon 9A and ribbon cassette CAS are held together and constitute the recording head 9.

Now, in the recording mechanism configured as described above, the dotting operation is performed by scanning the print edges PE1 to PE6 in the direction of the arrow a.
This is done by sequentially driving the corresponding solenoids DR1 to DR6 when the PE6 reaches a desired position on the recording paper 6. That is, the control circuit for the dotting operation is the same as the device shown in FIG. The arithmetic control circuit 14 reads each of these data and the data of the input signal stored in the first memory 5, and
The data closest to the data at the position of any print edge PE1 to PE6 is detected from among the data stored in the print edge PE1.
~Move the PE 6 (recording head 9) to the position of the data and record the dot using the print edge that has come to that position.

Here, the time it takes to scan one line with the recording head 9 becomes shorter depending on the number of print edges PE1 to PE6.
Since there are 6 PE1 to PE6, the scanning time is 1/6
becomes.

Next, the recording color changing operation will be explained. First, the positional relationship between the knife edge KEG and the print edges PE1 to PE6 facing it is as shown in FIG. As shown in the figure, print edge
When PE1 to PE6 are driven, dot printing is performed at the intersection point CP with the knife edge KEG, and the recorded color is determined by the color of the ink ribbon 9A. Further, FIG. 5 shows the relationship between the dot points CP and the color scheme of the ink ribbon 9A. As shown in the figure, the ink ribbon 9A has three colors (C) in its longitudinal direction.
1, C2, and C3), and are arranged so that all dot points CP1 to CP6 regarding print edges PE1 to PE6 fall within the same color area (C1). Therefore, if dots are printed in the illustrated state, the recorded color will be C1. here,
The recording head 9 is configured to be movable by a fixed distance in the direction of arrow b, for example, and the recording point can be set by changing its relative position with the knife edge KEG.
CP1~CP6 to CP11~CP61, CP12~
It can be changed to CP62. In other words, when the dot points are set from CP11 to CP61, the recording color becomes C2, and when the dot points are set from CP12 to CP61, the recording color becomes C2.
When it is set to 62, the recorded color becomes C3. In addition,
The dot point is controlled by the arithmetic control circuit 14, and is changed according to the dot input signal. In addition, in FIG. 5, the reason why the ink ribbon 9A is arranged diagonally with respect to the print edges PE1 to PE6 is that when the ink ribbon 9A is wound up and circulated endlessly, each dot point is
This is to prevent CP1 to CP6 from overlapping on the ribbon.

In this way, recording head 9 or knife edge
By moving the KEG to change the relative position between the knife edge KEG and the print edges PE1 to PE6, you can move the dot points CP1 to CP6 and change the recorded color arbitrarily. PE6 and ink ribbon 9
Since the relative position with respect to A does not change, the color area of the ink ribbon 9A will not be contaminated with other colors. In addition, the scanning speed of one line is
Since it is inversely proportional to the number of print edges PE1 to PE6, the recording speed can be increased by increasing the number of print edges PE1 to PE6.

In the above explanation, the calculation control circuit moves the recording head according to the magnitude of the input signal, and when it moves to a predetermined position, the dot recording is performed. The dotting operation procedure is not limited to this, but it may be configured such that the recording head is moved at a constant speed and the dotting operation is performed sequentially when each print edge reaches a position corresponding to the input signal. . Furthermore, although the case where the print edge scans independently of the ink ribbon has been illustrated, the structure of the recording head is not limited to this, and the structure may be such that the print edge scans together with the ink ribbon. The following actions can be performed. Furthermore, although the case where the printing point is changed by moving the print edge side has been illustrated, the same operation can be performed by moving the knife edge side.

〔Effect of the invention〕

As described above, in the multi-point recording device of the present invention, the recording means includes a knife edge arranged in the recording width direction, an ink ribbon dyed in a plurality of colors in the longitudinal direction and arranged along the knife edge, and a knife edge arranged in the recording width direction. The printer has a plurality of print edges perpendicular to the knife edge and opposed to the knife edge through the recording paper and the ink ribbon, and while scanning the print edge in the recording width direction, dot recording is performed at the intersection of the knife edge and the print edge. Since we are using a recording mechanism designed to
The time for one scan can be reduced in accordance with the number of print edges, and a multi-point recording device with a high recording speed can be realized with a simple configuration.

[Brief explanation of the drawing]

1 and 2 are block diagrams showing an example of a conventional multi-point recording device, and FIGS. 3 to 5 are block diagrams showing an embodiment of the multi-point recording device of the present invention. 1 ₁ ~ 1 _o ...Input terminal, 2...Scanner, 3...
...Amplifier, 4...A/D converter, 5, 13, 15
...memory, 6...recording paper, 7...paper feeding mechanism,
8... Paper feed mechanism drive circuit, 9... Recording head,
14...Arithmetic control circuit, 16...Display device, 17...
...Display drive circuit, 18...Keyboard, 19...
...Keyboard interface, 20...I/O port, KEG...Knife edge, PE1 to PE6...
...Print edge, DR1-DR6...Solenoid, CAS...Ribbon cassette.

Claims (1)

[Claims] 1 In a multi-point recording device that records a plurality of analog input signals converted into digital signals in an analog manner using a dot pattern, a knife edge arranged in the recording width direction and a plurality of knife edges dyed in a plurality of colors in the longitudinal direction are provided. an ink ribbon arranged along the knife edge, and a plurality of print edges arranged perpendicular to the knife edge and facing the knife edge with the recording paper and the ink ribbon interposed therebetween, the print edge being scanned in the recording width direction. While recording dots at the intersection of the knife edge and any print edge, the ink ribbon and the plurality of print edges are held together and movable in a direction perpendicular to the knife edge, and A multi-point recording device that changes the recording color by moving the intersection with a plurality of print edges to an arbitrary color area on the ink ribbon.