JPS6189518A - Multichannel dot recorder - Google Patents

Abstract

PURPOSE:To enhance the discrimination degree of a specific channel, by differentiating not only the recording number of dots of a desired channel and that of the other channel but also the recording line width of the desired channel and that of the other channel. CONSTITUTION:An input analogue signal is selected by a multiplexer controlled by CPU and amplified by a variable gain amplifier, so that the magnitude is set to a definite range, and converted to a digital signal to be temporarily stored. Recording paper is intermittingly fed by a definite amount by a paper feed mechanism while a recording head is subjected to raster scanning in the direction crossing the moving direction of the recording paper at right angles by a head scanning device when the movement of the recording paper is stopped and the position of the head is temporarily stored. Further, CPU successively reads a data signal and the head position corresponding to the movement of the head and, when both data coincided, recording dots are recorded on the recording paper in the number of dots, which are set corresponding to a selected channel, by the recording head.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a multi-channel dot recorder, and more specifically, the present invention relates to a multi-channel dot recorder. A multi-channel dot recorder configured to record dots on 1! It is related to the meter.

(Conventional (support: i, i)) A recorder configured to record the magnitude of analog signals of multiple channels on recording paper for each channel in an analog manner records / \ rad. There are multi-channel dot recorders designed to perform dot recording using dot recording elements.

By the way, if we look at the recording results on the recording paper in the conventional multi-channel dot recorder, as shown in FIG. 4, the magnitude of the analog signal of each channel is recorded with the same line width of one dot width.

(Problem to be solved by the invention) For this reason, if the recorded results intersect or overlap each other,
The correspondence between each recording result and each channel may vary.Such inconveniences are noticeable in devices that perform monochrome recording.Therefore, it is possible to Although efforts have been made to increase the degree of discrimination, it is not possible to increase the degree of discrimination by making only the recording results of a desired channel different from the recorded results of other channels.

The present invention solves these conventional drawbacks, and its purpose is to make the recording line width of a desired specific channel different from the recording line width of other channels, thereby increasing the degree of discrimination of the recording results of the specific channel. The aim is to increase

(Means for Solving the Problems) The present invention, which solves the above problems, is a multi-channel dot recorder such as the one described in m1, in which the number of dots recorded in a desired channel and the number of dots recorded in other channels are The present invention is characterized in that the recording line width of a desired channel is made different from the recording line width of other channels by making the recording line widths of the desired channel different.

(Example) Hereinafter, it will be explained in detail using the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, 11 to 1n are input terminals to which analog signals of multiple 1dn channels are applied, and these input terminals 1. ~
The analog signal applied to 1n is passed through a multiplexer 2 to an amplifier 3 that amplifies it to a predetermined size depending on the range.
selectively added to. 4 is an A/D converter that converts the analog No. 66 amplified by the amplifier 3 into a digital signal, and its output signal is temporarily stored in the first memory 5.

6 is a recording paper; 7 is a paper feed mechanism 4J4.8 using a pulse motor, for example, for intermittently moving the recording paper 6; a drive circuit for the paper feed mechanism 7; Reference numeral 9 denotes a recording head that records the selected analog signal in analog dots on the recording B 6. For example, as shown in FIG. A combination of a plurality (three in this embodiment) of wire dots a, b, and c and a monochrome ink ribbon IR is used so that a recorded image consisting of a maximum of three dots can be obtained. 10 is a drive circuit for the recording head 9, and 11 is a head scanner using, for example, a pulse motor for raster scanning the recording head 9 in a direction perpendicular to the moving direction of the recording paper 6. Reference numeral 12 denotes a scanning circuit which sends out a signal for driving the head scanner 11 and also sends out a digital signal related to the recording head 90. Reference numeral 13 refers to a scanning circuit related to the position of the recording head 9 sent from the scanning circuit 12. This is a second memory that temporarily stores digital signals. Reference numerals 14 and 15 denote edge detectors disposed at the ends of the scan area of the recording head 9, and 16 an edge detection circuit that sends and receives signals to and from the edge detectors 14 and 15. 17 is a CPU, which sequentially reads data temporarily stored in the first memory 5 and second memory 13, and sets the magnitude of the selected analog signal for each channel when both data match. A function to selectively drive the dot recording elements of the recording head 9 so as to record dots on the recording paper 6 in an analog manner with a predetermined number of dots, and to manage the recording position of each channel on the recording paper 6. It also has the function of controlling each component based on a predetermined program. 18 is a read-only memory that stores characters, symbols, etc. as dot patterns; 19 is a display that displays information related to measurement; 2
0 is an operation keyboard that includes functions for setting the desired channel to be noted and the number of recording dots, and setting their effective time, and 21 is for each of these 414 components +X72
It is a bus that

The operation of the multi-channel dot recorder configured as described above will be explained.

Input N file 1. The analog signals applied to ˜1n are selected by multiplexer 2 controlled by CPU 17 and applied to amplifier 3. Note that as the amplifier 3, for example, a programmable gain amplifier is used. This amplifier 3 is connected to the multiplexer 2 by the CPU 17 so that the Hi! The signal is then amplified so that the magnitude of each analog signal falls within a certain range. The analog signal thus amplified is converted into a digital signal by the A/D converter 4 and temporarily stored in the first memory 5. The records w and 6 are intermittently fed by a fixed amount by a paper feeding mechanism 7 controlled by the CPU 17. Recording head 9
is written with head scanning = 11 controlled by the CPU 17 by 117U in the direction perpendicular to the moving direction of the recording paper 6 fJt paper 6
Raster scanning is performed when the moving body stops, and the position of the recorded head 9 is temporarily stored in the second memory 13 depending on luck.

Note that the first memory 5 and the second memory 13 may be divided into a common memory as in this embodiment, or may be independent. 1qii section detection '514.1 located at the end of the scan area of the recording head 9
5 by each recording head 9 reaching that position! It generates the flute part Igogo, and uses optical switches, mechanical switches, etc. These Toro 1 part numbers υ are added to the bus 21 via the f-mo 1 part detection circuit 1G and are used to set the position data of the recording head 9, but may be omitted depending on the 114 configuration of the head scanner 11. You can also do that.

The CPU 17 stores data corresponding to the analog signal temporarily stored in the first memory 5 and the second memory 1.
The position data of the recording head 9 temporarily stored in 3 is released one after another in accordance with the 8 movement of the recording head 9. If both data match, the selected input terminal 1. In order to record the magnitude of the analog signal as a predetermined number of dots (1 to 3 dots in this embodiment) on the recording paper 6 according to the dot setting data set according to A control signal for selective driving is sent to the recording head 9. Also, this CPU1
Reference numeral 7 indicates control of dot recording of characters, symbols, etc. stored in the read-only memory 18 on the recording paper 6, display operation control of the display 19, and control of various parameters related to measurement operations using the keyboard 2o. Change behavior! fI: Also performs control. These trace operations are performed based on a predetermined program.

With this configuration (from this, each input terminal 1. to 1
It is possible to record the magnitude of each analog signal added to n in a predetermined number of dots corresponding to each channel on the paper in an analog manner, and as shown in Fig. 3, the desired channel can be recorded. By making the number of dot recording elements for recording different from the number of dot recording elements for recording other channels and making the recording line width of the desired channel different from the recording line width of the white channel, the degree of discrimination can be increased. can be increased.

Note that the fb control method of the recording position when the recording head 9 is raster scanned is not limited to the method of the embodiment, and can be performed by various methods.

In the above embodiment, an example is shown in which the recording head 9 is raster-scanned, but the same effect can be obtained by moving the recording head 9 using a servo mechanism according to the size of the analog No. 16.

Alternatively, a thermal head may be used as the recording head and thermal paper may be used as the recording paper, or a thermal transfer ink ribbon may be applied with the thermal head. ! It is also possible to convert the paper into Atsu paper.

Further, in the above embodiment, an example was shown in which a recording head having a plurality of dot recording elements was used.
The number of J dots may be set to 1 bff m, and the channel of interest may be fixed, or may be automatically switched depending on the elapsed time or the size of the g signal.

(Effects of the Invention) As is clear from the above, according to the present invention,
By making the line width of the raw+j channel different from the S'1 line width of other channels, the degree of discrimination of the recording result of a specific channel can be improved, and the practical effect is great.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of the recording head used in the present invention, and FIG. 3 is a diagram showing a recording example of the present invention. FIG. 4 is a diagram showing an example of conventional recording. 1, ~1n...Input t1"11, 2...Multiplexer, 3...Amplifier, 4...A/D converter, 5...
...First memory, 6...Recording paper, 7...Paper feeder 4j4.8...Paper feed orange (1 is also a drive circuit, 9...Recording head, 10...Recording head drive Circuit, 11... Head scanner, 12... Scanning circuit, 13... Second memory, 14.15... End detection circuit, 16... End detection circuit, 17... CPU, 18...Read-only memory, 19...Display =, 20...Keyboard, 21...
·bus. -ゝ, I (Rep. 11, Ozawa 11)
1 help'-゛,-

Claims (1)

[Claims] In a multi-channel dot recorder configured to record the magnitude of analog signals of multiple channels in analog dots on recording paper for each channel, the number of dots recorded in a desired channel and the number of dots recorded in other channels are calculated. A multi-channel dot recorder characterized in that the recording line width of a desired channel is made different from the recording line width of other channels by making the recording line width of a desired channel different.