JPH0820279B2 - Multi-point recording device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a multipoint recording apparatus, and more particularly to a multipoint recording apparatus that can obtain a recording result with high discriminating ability.

(Prior Art) One type of multi-point recording device is configured to record the measurement results of input signals of a plurality of channels in an analog manner while rasterizing the recording head along the width direction of the recording paper. .

FIG. 3 is a structural explanatory view showing an example of such a device. In FIG. 3, reference numerals 11 ₁ to 1 _n are input terminals to which analog input signals are applied, and these input terminals 11 ₁ to 1 _n are connected to a scanner 2 which sequentially selects and outputs analog input signals. An analog output signal sent from the scanner 2 is amplified by an amplifier that amplifies it to a predetermined size by an amplifier 3 and then added to an A / D converter 4 to be converted into a digital signal. Reference numeral 5 denotes an input terminal for a digital signal transmitted from the outside, which is connected to the interface 6. These A /
The output signal of the D converter 6 and the digital signal externally applied via the interface 6 are temporarily stored in the first memory 7. Reference numeral 8 is a recording paper, which is fed at a predetermined speed by a paper feeding mechanism 9 using a pulse motor, for example. Reference numeral 10 is a drive circuit for the paper feed mechanism 9. 11 is recording paper 8
A recording head for performing multicolor dot recording with a predetermined color corresponding to an input signal, which is selectively driven by the drive circuit 12. Reference numeral 13 denotes a recording head moving mechanism using a pulse motor, for example, which raster-scans the recording head 11 in a direction orthogonal to the feeding direction of the recording paper 8. Reference numeral 14 is a scanning circuit that sends out a signal for driving the recording head moving mechanism 13 and also sends out a digital signal related to the position of the recording head 11. The digital signal sent out from the scanning circuit 14 is temporarily stored in the second memory 15. Stored in. Reference numeral 16 is an arithmetic control circuit using a microprocessor, for example. 17 is a memory that stores characters and symbols as a dot pattern, 18 is a display that digitally displays information related to measurement, 19 is a drive circuit of the display 18, 20 is an operation mode of the device,
Input signal type, measurement range, recording range, alarm set value,
A keyboard for setting the paper feed speed, 21 is a keyboard interface, 22 is an input / output port, 23 is a battery for backing up the memories 7 and 15, 24 is an alarm circuit for detecting a voltage drop of the battery 23, and P is a panel Is. Reference numeral 25 is a communication interface for exchanging data with an external device (not shown). At least one end of the print head 11 or the scan area of the print head 11 generates an end signal when the print head 11 reaches the end of the scan area and resets the position data of the print head 11. Although a detection means is provided, it is not shown.

In such a configuration, the recording head 11 while the raster scan, via the digital signal and the communication interface 25 are applied from the analog input signal and the input terminal 5 applied to the input terminal 1 ₁ to 1 _n of the data applied from the outside The size is recorded in a dot pattern in an analog manner.

By the way, according to the recent apparatus, for example, 30 times can be obtained by one raster scan by improving the operation processing speed of the operation control circuit 16 and the high speed response of the recording head 11.
Data recording for 0 channels can also be performed.

(Problems to be solved by the invention) However, when the number of recording channels is relatively small, about 30 channels, the measurement results can be easily identified, but when the number of recording channels exceeds 30, it becomes difficult to identify the measurement results. Not practical.

The present invention focuses on such a point, and an object thereof is to provide a multipoint recording apparatus that can obtain a highly discriminative recording result when simultaneously recording the data sizes of multiple points in an analog manner. To do.

(Means for Solving Problems) A multipoint recording device of the present invention inputs measurement data from a plurality of measurement points, records a part of the measurement data in an analog manner, and at least a part of the destination data. Is added to the master recorder to be sent to the outside through the communication section, and the destination data added to the measurement data sent from the master recorder is acquired through the communication section to be identified, and the measurement data addressed to itself is identified. And at least one slave recorder for selectively recording.

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

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, reference numeral 30 is a master recorder, to which at least one slave recorder 50 is connected via a dedicated line 40. The master recorder 30 inputs measurement data from a plurality of measurement points, records part of the measurement data in an analog manner, adds destination data to at least part of the measurement data, and sends the data to the outside via the communication unit 34. The slave recorder 50 takes in the destination data added to the measurement data sent from the master recorder 30 via the communication unit 51 and identifies it, and selectively records the measurement data addressed to itself.

FIG. 2 is a block diagram showing a main part of the concrete example of FIG. In FIG. 2, reference numeral 31 is a measuring unit for converting analog input signals of a plurality of channels such as voltage, current and temperature into digital signals for measurement, and the measurement results are sent to the arithmetic control unit 32. Reference numeral 33 is a setting unit for setting various data such as measurement conditions for each channel, calculation conditions, recording conditions, destination data designating a slave recorder for display / recording in the arithmetic control unit 32. The arithmetic control unit 32 performs necessary arithmetic processing on the measurement result added from the measuring unit 31 according to the arithmetic condition set by the setting unit 33, and then displays it on the slave recorder 50 according to the destination data set by the setting unit 33. What is to be recorded is sent to the dedicated line 40 via the communication section 34, and what is to be displayed and recorded by the master recorder 30 is sent to the display section 35 and the recording section 36. Reference numeral 51 is a communication unit provided in the slave recorder 50. The communication unit 51 receives the data transmitted from the master recorder 30 via the dedicated line 40, decodes the destination data, and fetches only the data addressed to itself to the control unit 52. The address of the slave recorder 50 itself is set in the setting section.
Set in advance with 53. The measurement result thus taken in by the control unit 52 is sent to the display unit 54 and the recording unit 55.
As the master recorder 30 and the slave recorder 50, for example, the device shown in FIG. 3 may be used as a basic configuration, and necessary function blocks may be added and unnecessary function blocks may be removed according to the application.

In such a configuration, the measuring unit of the master recorder 30
The measurement result measured by 31 is the setting section of the master recorder 30.
According to the destination data set by 33, the master recorder 30 and at least one slave recorder 50 are divided and displayed and recorded.

Here, the master recorder 30 and each slave recorder 50
By setting the number of displayed and recorded channels at an appropriate value that does not impair the distinguishability (for example, up to 30 channels), the record results with excellent distinguishability can be obtained even when simultaneously recording multiple measurement results. Obtainable.

Further, by sending the measurement results of the same channel to a plurality of recorders as needed, the same measurement results can be displayed and recorded at a plurality of locations at the same time.

In the above embodiment, the result of the analog input signal measured by the measuring unit 31 of the master recorder 30 is used as the slave recorder 50.
Although the example of division transmission has been described above, the digital signal applied from the input terminal 5 and the size of data externally applied via the communication interface 25 as shown in FIG. it can.

The recording unit is not limited to the raster scan type recording head, and may be a line recording head in which a plurality of recording elements are arranged along the width direction of the recording paper.

(Effects of the Invention) As described above, according to the present invention, a master recorder inputs measurement data from a plurality of measurement points, adds destination data to at least a part of the measurement data, and sends the data to the outside via a communication unit. However, since the slave recorder is configured to capture and identify the destination data added to the measurement data sent from the master recorder via the communication unit, and selectively record the measurement data addressed to itself, It is possible to realize a multi-point recording device that can obtain a highly discriminative recording result even when the data sizes of multiple points are simultaneously recorded in an analog manner, and the practical effect is great.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an essential part of the concrete example of FIG. 1, and FIG. 3 is a block diagram showing an example of a conventional apparatus. 30 …… master recorder, 40 …… dedicated line, 50 …… slave recorder.

Claims (1)

[Claims] 1. Inputting measurement data from a plurality of measurement points,
A master recorder that records a part of the measurement data in an analog manner and adds the destination data to at least a part of the measurement data and sends the data to the outside through the communication unit, and the master recorder added to the measurement data sent from the master recorder. A multi-point recording device, comprising: at least one slave recorder that captures and identifies destination data via a communication unit and selectively records measurement data addressed to itself.