JPH08128860A - Recorder printing method and this recorder - Google Patents

Abstract

(57) [Summary] [Purpose] At the start of printing, move the printing position away from the printing point so that the printing point does not overlap the characters. [Structure] Recording paper 1 fed at a constant speed by a recording paper feeding mechanism
In the recorder 10 having the ink ejecting section 3 which always reciprocates a fixed portion at right angles to, and the character memory 16, the line memory 13, and the line memory counter 14, the CPU 12 functions to make the measured value have the scale width in step S1. It is determined whether it is right or left. In steps S2 and S3, the print area is defined as a place where the recording points do not overlap the character. When the measured value enters the print area in step S6, the print area is defined from the beginning in step S7. How to make this recorder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for printing information on a recorder which records analog measurement values on a sheet as time passes so that the information and the recording point do not overlap with each other, and to the recorder.

[0002]

2. Description of the Related Art A recorder can record one value of a predetermined analog input signal with ink at a corresponding position on a recording paper having a scale line of 0 to 100% so that the change over time can be viewed. To Due to the recent development of electronic technology, a central processing unit (hereinafter abbreviated as CPU) is built in the recorder, and the date and time, the recorded process variable name,
A method of printing process information of alarm reception as a message on a recording sheet is becoming widespread.

FIG. 4 is a block diagram showing the main parts of the mechanism of this type of recorder. Several pins 2 fixed at equal intervals on both ends of the rotating shaft (not shown) are used for the 0% line 1a and 100%
The recording paper 1 with the line 1b is intermittently moved in the recording paper moving direction A at regular intervals. On the other hand, the pulse motor 5 fixed to the structure 4
When it receives one pulse from the stopped state, it rotates by a unit angle and stops. The direction B of rotation of the pulse motor shaft is perpendicular to the feeding of the recording paper 1 through the ink jetting unit 3 via the belt 6, and
~ 100% always move in reciprocating direction C. And
The ink ejecting unit 3 ejects ink onto a recording sheet in accordance with the ejection signal described with reference to FIG. 7 to form a recording point, and this connection is referred to as a recording line 3a.

FIG. 5 is a main block diagram of the recorder 10 . The analog input signal 21 is converted into a digital signal called a measured value which can be processed by the CPU 12 in the analog-digital converter 11. The CPU reads this measured value through the internal data bus 22 and changes the bit of the storage cell of the corresponding address in the line memory 13 of one line having an address corresponding to 0 to 100% of the recording paper from 0 to 1.
In addition, the line memory counter 14 and the ink ejection control unit 1
5, the CPU 12 discriminates the bit value by the CPU 12 in the order of the address of the line memory 13, and ejects one ink point from the ink ejecting unit in accordance with the bit 1.

On the other hand, the character memory 16 stores a character division point code corresponding to JIS X 0208 Kanji code for information exchange, which is a predetermined character. Further, the interface section 17 can receive the external transmission signal 23 and can be connected to the internal data bus 22 of the recorder, and can send a print command to the CPU 12. The CPU 12 reads the character division point code specified from the character memory 16 to the CPU 12 in response to a print instruction issued from itself or a print instruction from the interface unit 17, and converts one line from one character division point code to form a dot character. Allocates to the specified print range in memory 13. At this time, since no character is displayed anywhere, it will be described with reference to FIG.

FIG. 6 is a diagram showing an example of interrupting the line memory by dot data of a message indicating the relationship between five parts.
Each part is an image diagram of the message contents, a dot matrix diagram, an inverted dot matrix diagram, a dot array diagram of the 10th line of the dot matrix, and a line memory from the top. An example of the first message is C that the analog input signal is out of the predetermined range.
It is an image figure which shows that PU detected and transferred the content of "Issue Hussey" from the character memory to the area | region previously reserved for 10 characters in CPU. Part 1
Each character is data as shown in the second dot matrix diagram. That is, one character is divided into 10 vertically and horizontally here, and in order to express 1 character with a total of 100 dots, the bit of the dot character part is set to 1 (hatched part in the figure) and the bit of the dot non-character part is set to 0. It consists of data that can be read as "a". Actual data is (0,0), (0,1), (0,2), ~ (0,9), (1,0), (1,1) ), ~ (9,8),
0 or 1 is stored in the order of (9,9).

The third of FIG. 6 is the dot matrix inverted. The reason for reversing is that the address of the fifth line memory in FIG. 6 increases as it moves to the right and the corresponding scale on the recording paper increases as it moves to the left as shown in FIG. It is necessary to invert the characters to match with. In the bit arrangement diagram on the 10th line of this dot matrix, the fifth and sixth bits from the left are set to 1 and the other bits are set to 0 in the range of this figure. Here, the reason why the 10th line from the top is treated first is that the characters are written horizontally when the recording paper 1 in FIG. 4 is viewed from the front.

Furthermore, the fifth allocation diagram in the line memory is such that the total 100 dots at the bottom of this 10-dot matrix diagram is the print range of the line memory, and in this example, the contents of 100 consecutive addresses are set to the address 1850. From 1949, that is,
Since it was inverted, the last 10 dots are assigned from 1940 to 1949, and bit 1 of the dot is set to 1 as it is and 0 is left for others. In this case, if the recording width is 200 mm and the value explained in FIG. 4 is used, the longest character becomes 10 mm on the recording paper, and if the character width is to be doubled, the allocation to the line memory is doubled. Further, the height of the character is determined by the recording paper speed and the reciprocating cycle of the ink ejecting unit, but in order to make it an appropriate height, "a bit of one line of the dot matrix is stored in the line memory of Adjust the execution cycle of "Enter into print range".

FIG. 7 is a flow chart in which the ink is ejected to one point on the recording paper by the measured value in the line memory and bit 1 of the print range, and the flow is entirely by the action of the CPU. In the figure, Y is an abbreviation for YES and N is an abbreviation for NO. Step S2
All bits of the line memory are set to 0 by 1 and step S22
To return the ink ejecting unit to the 0% position, set the value x of the line memory counter to 0 in step S23, and then execute step S2.
At 4, the bit of the address of the measured value of the line memory is set to 1. Step S25 describes the process of moving the fourth line to the fifth line in FIG. 6, and puts bit 1 of the dot data into the print range of the line memory.

If the value in the address x of the line memory is 1 in step S26, a signal is sent to the ink ejection control unit in step S27 to set the ink ejection unit to 1 ink.
Do the point injection and if 0, do not send the injection signal. Step S
In step 28, one pulse is sent to the pulse motor to advance the ink ejecting unit, and in step S29, 1 is added to x and step S3 is performed.
If x is 0 and is within the value of the final address of the line memory, the process returns to step S26, and if it exceeds the value of the final address, the process ends.

When this process is completed, the process moves to the process of the contents of the line memory including the 9th line from the top in the third dot matrix diagram of FIG. 6 and is similarly ended, while the measured values are also recorded by this process. Finish printing,
Until the next print command comes, the analog input signal is continuously recorded according to the measured value address in the line memory. The numerical explanation is as follows.
If the pulse motor requires N pulses to move%, the number of stop points of the pulse motor is N + 1, and
The reciprocal of N is called the resolution. For example, if the resolution is set to 0.05%, the pulse motor requires 2001 stop positions in order to move the recording width of 0 to 100%. Allocate 2001 addresses in the memory for the number of stop positions. When recording the measured value at 60%, change the bit of the address 1200 of the 1201th bit of the line memory from 0 to 1, and while the ink ejecting unit moves sequentially from 0% to 100%, the address 1200 1 point of ink is ejected onto 60% of the recording paper according to the bit 1 of.

[0012]

In the conventional recorder, since the characters are printed in a certain range regardless of the address of the measured value of the line memory, the recording points may overlap with the characters and the recording points cannot be accurately measured. There was a drawback. An object of the present invention is to provide a printing method of a recorder and a recorder in which recording points do not overlap characters.

[0013]

SUMMARY OF THE INVENTION The present invention is directed to an analog-to-digital converter for converting an analog input signal into a measured value which is a digital value, a recording paper with a graduation line which moves intermittently in a fixed cycle, and a movement of this recording paper. Controls the entire system, including an ink ejection unit that always reciprocates between 0 and 100% of the scale line to eject ink, a character memory that stores the character delimiter code of the character to be printed as a message, and the entire system. In addition, there is a CPU that can convert the character division point code into a dot matrix, and there is an address corresponding to 0 to 100% of the recording paper, and one line that uses the measured value and each bit of the dot matrix address as an ink ejection signal. In a recorder composed of the line memory and the line memory, the CPU synchronizes with the feeding of the recording paper and stores the address corresponding to the measured value in the line memory at regular intervals. Set the value from 0 to 1 and divide the line memory into two equal parts, and set the message range from the end of the area opposite to the area where bit 1 of the measurement value is present to the print end, read from the character memory and convert. The dot of the character part, which is the inverted dot matrix, is set to bit 1, the dot of the non-character part is set to bit 0, and each line is sent to the print range of the line memory to start recording and printing. When entering the print range, the print range is defined from the beginning.

According to the present invention, a print range counter is further provided in this method, the value y of the print range counter is initialized to 0, and the gap between the address of y and the measured value in the line memory is predetermined. In the following case, 1 is sequentially added to y, and if the difference is equal to or larger than the predetermined gap, the area in the line memory starting from the address y is set as the printing range until the end of printing.

Further, according to the present invention, an analog-to-digital converter for converting an analog input signal into a measured value which is a digital value, a recording paper with a scale line which intermittently moves at a fixed period, and a direction orthogonal to the moving direction of the recording paper. 0 to 1 on the scale line
Ink ejection part that constantly reciprocates between 00% and ejects ink, character memory that stores the character delimiter code of the character to be printed as a message, and the entire system is controlled, and the character delimiter code is a dot matrix. A CPU that can be converted to, a line memory of one line that has an address corresponding to 0 to 100% of the recording paper, and uses the measured value and each bit of the address of the dot matrix as an ink ejection signal,
In the recorder configured by, the CPU sets the bit of the address corresponding to the measured value in the line memory from 0 to 1 at regular intervals in synchronization with the feeding of the recording paper, and divides the line memory into two equal parts. The message range from the end of the area opposite to the area with bit 1 of the measured value is the print range until the end of printing, and the dot in the character part obtained by inverting the dot matrix read and converted from the character memory is set as bit 1 and the non-character part This is a recorder that sets the dot of 0 to bit 0 and sends each line to the print range of the line memory to start recording and printing, and when the measured value enters the print range during printing, the print range is defined from the beginning. .

[0016]

According to the present invention, by the action of the CPU, it is determined whether the measured value immediately before printing is from the center of the scale width to the right or left, and the printed value is printed at the half edge where the measured value does not exist.
If the difference between the measured value immediately before printing and the print range counter is equal to or greater than the predetermined gap due to the action of PU, the print range is printed, and when the measured value enters the print range, the print range is determined. It is a method to repeat and a recorder.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A flow chart of an embodiment of a character printing method according to the present invention is shown in FIG. The main block diagram of the recorder is shown in FIG. 5, and the numerical examples have the same values as in the explanation example of FIG. Regardless of the position of the recording point, the CPU functions as follows to maximize the gap between the characters.

In step S1, it is determined whether the address of the measured value of the line memory is equal to or less than 1000, which corresponds to 50% of the address of the line memory, or exceeds the address. If it is 50% or less, in step S2, the start end of the printing range is the end of the line memory from the end of 1 dot data,
If it exceeds 50%, the start end of the printing range is aligned with the start end of the address of the line memory in step S3, and then the ink is ejected in order from the address 0 to the end address of the line memory according to bit 1 in step S4. In step S5, it is determined whether printing is completed. If not, it is determined in step S6 whether the next measured value has entered the print range of the line memory. If it has entered, printing is stopped in step S7 and the print position is determined. Repeat from the decision of step S
Repeat from 4 to finish printing.

According to this flow chart, the gap between the measured value address and the print range is "(50% address of line memory)-(number of dots of dot data)" or more, irrespective of the measured value address in the line memory. Reserved. A main block diagram according to the present invention is shown in FIG. This is a main block diagram of the recorder 10a in which a print range counter 18 is newly added to the main block diagram of the recorder 10 of FIG. 5, and the operation of the print range counter 18 will be described with reference to FIG.

FIG. 3 is a flow chart showing an embodiment of the present invention in which a print range counter is provided in the conventional product, and all the functions are performed by the CPU. Further, here, the minimum gap between the recording point and the character will be described as being the maximum value that the recorder can take. In step S11, the print range counter value y is set to zero. Regardless of the address of the measured value in the line memory, there is always a gap of "(50% address of line memory)-(number of dots of dot data)" or more from the print range. Then, it is judged whether the difference between the print range counter value y and the measured value address is 50% or more of the line memory address. If the value is less than 1, then 1 is sequentially added to y in step S13, and the difference between the address of y and the measured value is calculated as "(50% of line memory address)-(dot data Dot number) ". Here, the reason why the determination values in step S12 and step S14 are different is that the gap between the recording point and the horizontally written character is always set to a constant value. In the numerical example of FIG. 6, there are 2001 bits in the line memory, and if one line of dot data is 100 bits, the address of the measured value is 50% of the line memory.
, The maximum gap between the line memory measurement address and the inner edge of the print area is 900 minus 1000 minus 100, which is less than the maximum gap that other measurements can take. The value 900 can always be the address of another measured value.

Then, in step S15, the printing range is fixed, and in step S16, ink is ejected in order from the address 0 to the end of the line memory according to bit 1. If the printing of the character is not completed in step S17, it is determined in step S18 whether or not the address of the measured value of the next line has entered the printing range. When the character does not print, the printing is continued until the next print command is issued.

According to this example, if the variation of the measured value address to the printing range side by the step S18 is less than 900 in the line memory, that is, less than 90 mm on the recording paper, the characters are printed without omission. In this explanation, the characters are limited to a constant interval from the measured value, but steps S12 and S
The determinations of 14 may be “m or more?” And “m-n or more?”. Further, although the present invention is an example in which the number of recording lines is 1, it can be similarly implemented when the number of recording lines is 2, only by changing the set numerical value.

[0023]

According to the present invention, since the printing is performed at a position apart from the measured value immediately before printing, the recording points are less likely to overlap with the printing, and even if they overlap, the recording points are printed from the beginning. Of course, the correct recording of the input signal and the correct character and its correct time of occurrence can be obtained at the same time.

[Brief description of drawings]

FIG. 1 is a flow chart of an embodiment according to the present invention.

FIG. 2 is a main block diagram according to the present invention.

FIG. 3 is a flow chart of an embodiment according to the present invention.

FIG. 4 is a block diagram of the main part of the mechanism of the recorder.

FIG. 5: Main block diagram of recorder

FIG. 6 is an allocation diagram of one line of a dot matrix to a line memory.

FIG. 7 is a flow chart of ink ejection by bits in a line memory.

[Explanation of symbols]

1 Recording Paper 3 Ink Ejector 5 Pulse Motor 10 Recorder 11 Analog-to-Digital Converter 12 CPU 13 Line Memory 14 Line Memory Counter 16 Character Memory 18 Print Range Counter 21 Analog Input Signal S6 Judgment of Next Measured Value into Print Range

Claims (3)

[Claims] 1. An analog-to-digital converter for converting an analog input signal into a measured value which is a digital value, recording paper with a graduation line that moves intermittently in a fixed cycle, and a graduation line perpendicular to the moving direction of the recording paper. 0-100%
Ink ejection part that constantly reciprocates between the units to eject ink, character memory that stores the character delimiter code of the character to be printed as a message, and the entire system is controlled, and the character delimiter code is converted to a dot matrix. A recorder that consists of a central processing unit that can be used and a line memory of one line that has an address corresponding to 0 to 100% of the recording paper and uses the measured value and the bit for each address of the dot matrix as an ink ejection signal. At the same time, the central processing unit synchronizes with the feeding of the recording paper and changes the bit of the address corresponding to the measured value in the line memory from 0 to 1 at regular intervals and divides the measured value in the line memory into two equal parts. The dot matrix read from the character memory and converted by setting the message range from the end of the area opposite to the area with bit 1 of The dot of the character part which reversed is set to bit 1 and the dot of the non-character part is set to bit 0, and each line is sent to the print range of the line memory to start recording and printing, and the measured value is printed within the print range during printing. When intruding, the printing range is set from the beginning, and the printing method of the recorder is characterized. 2. The printing method for a recorder according to claim 1, further comprising a print range counter, wherein a print range counter value y is initialized to 0, and y and a measured value are stored in a line memory. If the address difference is less than or equal to the predetermined gap, 1 is sequentially added to y. If the difference is greater than or equal to the predetermined gap, the area starting at address y in the line memory is set as the print range until the end of printing. A printing method of a recorder characterized by the following. 3. An analog-to-digital converter for converting an analog input signal into a measured value which is a digital value, recording paper with graduation lines which moves intermittently at a fixed cycle, and graduation lines perpendicular to the moving direction of the recording paper. 0-100%
Ink ejection part that constantly reciprocates between the units to eject ink, character memory that stores the character delimiter code of the character to be printed as a message, and the entire system is controlled, and the character delimiter code is converted to a dot matrix. A recorder that consists of a central processing unit that can be used and a line memory of one line that has an address corresponding to 0 to 100% of the recording paper and uses the measured value and the bit for each address of the dot matrix as an ink ejection signal. In the above, the central processing unit changes the bit of the address corresponding to the measured value in the line memory from 0 to 1 in every fixed cycle in synchronization with the feeding of the recording paper, and divides the measured value in the line memory into two equal parts. The dot matrix read from the character memory and converted by setting the message range from the end of the area opposite to the area with bit 1 of The dot of the character part which reversed is set to bit 1 and the dot of the non-character part is set to bit 0, and each line is sent to the print range of the line memory to start recording and printing, and the measured value is printed within the print range during printing. The recorder is characterized by allowing the print range to be defined from the beginning when it invades.