JPH01282425A - Multi-point measuring recorder - Google Patents

Abstract

PURPOSE:To enable the cutting down of a circuit space to the extent of a single recording mode, by providing a means for applying a power source complementarily to first and second impact recording means to drive the impact recording means selectively by a common driving means. CONSTITUTION:In an analog recording, a mobile contact (c) of a changeover switch SW is switches and connected to a fixed contact (a) position and a power source terminal +Vp is connected in common to one end of solenoid coils L1-L6. Under such a condition, a pulse signal for driving is applied selectively to the bases of transistors Q1-Q6 so that an excitation current flows through the coils L1-L6 to perform a color dot recording with a wire hammer. In a digital recording, the contact (c) of the switch SW is changed over to a fixed contact (b) position and the power source terminal +Vp is connected to one end of coils L6-L12. Under such a condition, a pulse signal for driving is applied selectively to the bases of transistors Q1-Q7 so that an excitation current flows through the coils L6-L12 to perform a monochromatic dot recording with the wire hammer.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a multi-point measurement recorder that records the magnitude of a plurality of analog input signals in an analog manner using an impact recording means and records various information in print. The present invention relates to a device, and in particular to the driving of an impact recording element.

(Prior Art) (Prior Art) FIG. 2 is a configuration explanatory diagram showing an example of a conventional device. In FIG. 2, 11 to 11 are input terminals to which analog input signals are applied, and these input terminals 11
~1π is connected to a scanner 2 that sequentially selects and sends out analog input signals. The analog output signal sent from the scanner 2 is amplified to a predetermined magnitude by an amplifier 3, and then applied to an A/D converter 4 where it is converted into a digital signal. 5 is an input terminal for a digital signal transmitted from the outside, and is connected to an interface 6. These output signals of the A/D converter 6 and digital signals applied from the outside via the interface 6 are temporarily stored in the first memory 7. Reference numeral 8 denotes recording paper, which is fed at a predetermined speed by a paper feeding mechanism 9 using, for example, a pulse motor. 10 is a drive circuit for the paper feeding mechanism 9.

A recording head 11 records dots in multiple colors on the recording paper 8 in predetermined colors corresponding to input signals, and is selectively driven by a drive circuit 12. Reference numeral 13 denotes a recording head moving mechanism using, for example, a pulse motor, which causes the recording head 11 to raster scan in a direction perpendicular to the feeding direction of the recording paper 8. 14 is a scanning circuit that sends out a signal for driving the recording head movement 1 [13 and also sends out a digital signal related to the position of the recording head 11;
The digital signal sent from the second memory 15 is temporarily stored. 16 is an arithmetic control circuit using, for example, a microprocessor. 17 is a memory that stores characters, symbols, etc. as dot patterns; 18 is a display that digitally displays information related to measurement; one is a drive circuit for the display 18; kinds.

Keyboard for setting measurement range, recording range, alarm setting value 1 paper feed speed, etc. 21 is keyboard interface, 22 is input/output board, 23 is memory 7.15
24 is an alarm circuit for detecting a voltage drop in the battery 23, and P is a panel. In addition,
At least one end of the recording head 11 or the scan area of the recording head 11 generates an end signal when the recording head 11 reaches the end of the scan fii area, and resets the position data of the recording head 11. Although an end detection means is provided, it is not shown.

The operation of the device configured in this way will be explained.

The analog input signal applied to input terminals 11-11 is
The signals are sequentially selected by the scanner 2 controlled by the arithmetic control circuit 16 and applied to the amplifier 3.

As the amplifier 3, for example, a programmable gain amplifier is used. The gain of this amplifier 3 is controlled by an arithmetic control unit 6 in conjunction with the scanner 2, and the amplifier 3 amplifies the output signal to be, for example, 0 to 2, regardless of the magnitude of each analog input signal. The analog output signal sent from the amplifier 3 is converted into a digital signal by the A/D converter 4 and stored in the first memory 7. This data is linearized according to the type of input and stored as a signal for display and logging.
In order to correspond to the fII1 width, it is converted into a numerical value between 0 and 2500 and stored. Note that these scanners 2. An analog section consisting of an amplifier 3 and an A/D converter 4 is connected to another digital section via a photocoupler. This allows the analog part and the digital part to be completely electrically isolated. On the other hand, the digital signal applied to the input terminal 5 is also stored as a signal for display and logging via the interface 6 controlled by the arithmetic control circuit 16, and is also sequentially stored as a signal for trend recording corresponding to the recording width. It is selectively stored in the first memory 7.

The recording paper 8 is intermittently fed by a predetermined amount by a paper feeding mechanism 9 controlled by an arithmetic control circuit 16, for example, each time the rad 11 is scanned for recording.

As the recording head 11, for example, as shown in FIG.
An ink ribbon unit 30 and a wire dot unit 40 mounted on a carriage (not shown) are used as impact recording elements. The ink ribbon unit 30 is
It is composed of an endless ink ribbon 31 that is dyed in multiple colors in strips along the longitudinal direction, and an ink ribbon cassette 32 that stores the ink ribbon 31. The wire dot unit 40 includes a wire hammer 41. ~411
□ and a drive machine m42. which selectively drives these wire hammers 411-41,2. ~42,2.

Here, in the ink ribbon unit 30 and the wire dot unit 40, as shown in FIG. 4, for example, wire hammers 411 to 416 are attached to each color band C4 to C6 of the ink ribbon 31 along the moving direction A of the carriage. Facing,
A plurality of wire hammers 41 to 41 are used for a specific color band C4.
12 are arranged so as to face obliquely to the moving direction A of the carriage. The ink ribbon 31 is arranged so as to move perpendicular to the moving direction A of the carriage. These wire hammers 41, 41, 2 and drive mechanism 42. ~4212 is a driving method in which the wire hammers 411 to 416 and driving RWi42, ~426 are the first wire dot unit group, and the wire hammers 417 to 4112 and the mechanical movement 11'l structure 42v to 4212 are the second wire dot unit group. Mechanism 42. ~42t1 and drive mechanisms 427~42,2 are stacked on the carriage. These drive mechanisms 421 to 4212 are configured as solenoid mechanisms. FIG. 5 shows these drive mechanisms 42. ~
421□ is an arrangement side view seen from above, and <a> is the drive mechanism 42.421 of the first group. -426 are shown, and (b) shows the second group drive mechanisms 427-42,2. The recording head 11 configured in this manner is moved in a direction perpendicular to the feeding direction of the recording paper 8 by the recording head moving mechanism 13 controlled by the arithmetic control circuit 16, for example, at 0.000000000 when the recording paper 8 is stopped being fed.
Raster scanning is performed at 1111/step. The position of the recording head 11 is converted into a digital signal and temporarily stored in the second memory 15. In addition, with this device,
Although a common memory is divided and used as the first memory 7 and the second memory 15, independent memory may be used.

In the trend mode, the arithmetic control circuit 16 reads out all data corresponding to the input signal stored in the first memory 7 and data corresponding to the position of the recording head 11 stored in the second memory 15. , detects data that has the smallest difference from the data stored in the second memory 15 from among the data stored in the first memory. Then, according to the difference, the recording head 11 is moved a predetermined distance along the scanning direction, and when the difference becomes zero, the recording head 11 is
Control signals for causing dot recording of a predetermined color corresponding to the input terminal selected are sent out. Note that when these control signals are sent out, the recording position of each color is corrected. Such correction is performed by each of the first wire dot unit groups of the recording head 11 that records a predetermined color assigned to each input terminal on each input signal stored in the first memory 7, for example. A phase difference signal of the wire hammer with respect to the reference wire hammer is added or subtracted. Also,
When recording, two or more colors may be mixed as necessary. By performing such operations sequentially during one scan of the RAD 11 to record, the magnitude of each input signal can be adjusted individually. Dots can be recorded in an analog manner using a predetermined color assigned to the image. In the logging mode, the recording head 11 controls the second wire dot unit group to digitally record the magnitude of each input signal and various information in a specific color.

In addition, in these trend mode and logging mode,
The display 18 is controlled to digitally display the magnitude of each input signal at a period different from the switching speed and recording speed of the scanner 2. In addition, the arithmetic control circuit 16 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 20. These various control operations are also performed based on a predetermined program.

With this configuration, in the trend mode, the input terminals 1 . The magnitude of the analog input signal applied to 11 to 11 and the digital signal applied to the input terminal 5 can be recorded in an analog manner on the same recording paper with dot patterns of predetermined colors assigned to each, and a display. For example, the measurement result before calculation and the change in the calculation result can be displayed continuously. Furthermore, the magnitude of a particular analog input signal can be continuously displayed digitally if desired. On the other hand, in the logging mode, the magnitude of each input signal and various +ft information can be digitally recorded line by line with one movement of the carriage.

By the way, the wire hammer 411 in such a device
As shown in FIG. 6, the solenoid coils L and L12 constituting the driving R sides 421 to 42, 2 of 4112 are driven by drive circuits provided individually for each system. That is, each solenoid coil L, ~Lj2
diodes D1 to DI2 and resistors R1 to R, respectively.
Two series circuits are connected in parallel. One end of each of the solenoid coils L1, .about.L+2 is commonly connected to a power supply terminal Vp, and the other end is connected to a common potential point via transistors Q1 to Q12 used as switching elements. Note that the diodes D1 to D'+2 are used to absorb reverse current when the current is turned off, and the resistors R4 to R1□ are used to limit the current at that time.

During analog recording, driving pulse signals are selectively applied to the bases of the transistors Q1 to Q6, so that excitation current flows through the corresponding solenoid coils 1 to L6, and color tod recording is performed by the wire hammers 411 to 416. During digital recording, transistor Q6~
By selectively applying a driving pulse signal to the base of Q12, excitation current flows through the corresponding solenoid coils 6 to L+2, and the wire hammers 416 to 4112 perform monochrome dot recording.

(Problems to be Solved by the Invention) However, according to such a configuration, although the trend recording mode and the digital recording mode are not performed at the same time, an independent drive circuit is provided for each impact recording element. As a result, the circuit space and cost are almost double compared to a single recording mode only.

The present invention has focused on these points, and its purpose is to realize a multi-point measurement and recording device that can reduce circuit space and circuit cost to the level of a single recording mode.

(Means for Solving the Problems) The multi-point measurement and recording device of the present invention comprises a first impact recording means consisting of a plurality of impact recording elements for recording the magnitude of a plurality of human power signals in an analog manner, and various +R In a multi-point measurement recording device having a second impact recording means made up of a plurality of impact recording elements for printing and recording information, the first impact recording means and the second impact recording means are supplementarily supplied with power. and the impact recording means are selectively driven by a common driving means.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a circuit diagram showing a main part of an embodiment of the present invention,
The same parts as in FIG. 6 are given the same reference numerals. In FIG. 1, SW is a recording mode changeover switch, and one fixed contact a has a solenoid coil connected to one end of L5, and the other fixed contact has one end of solenoid coil L7 to L12. A power terminal Vp is commonly connected to the movable contact C, and one end of a series circuit of diodes D, ~D7 and resistors R1 to R7 and one end of a solenoid coil L6 are commonly connected. There is. The other ends of the solenoid coils L1\L7 are connected to the collectors of the transistors Q1 to Q7, respectively, and the curved ends of the solenoid coils L[I to 12 are connected to the collectors of the transistors Q1 to Q7, respectively.
~ Connected to the collector of Q5.

The operation of the device configured in this way will be explained.

During analog recording, move the movable contact C of the changeover switch SW to the fixed contact al11! Switch connection to I. As a result, the power terminal vP is commonly connected to one end of the solenoid coils 51 to L6. In this state, a driving pulse signal is selectively applied to the bases of the transistors Q1 to Q6, so that the corresponding solenoid coils L1 to L
An excitation current flows through the wire hammers 6 to perform color tod recording by the wire hammers 411 to 416.

On the other hand, during digital recording, the movable contact C of the changeover switch SW is switched and connected to the fixed contact bIFl. As a result, one end of the solenoid coils I, 6 to LI2 has a power terminal +V.
p will be connected in common.

In this state, by selectively applying a driving pulse signal to the bases of the transistors Q1 to Q7, excitation current flows through the corresponding solenoid coils L6 to LI2, and monochromatic dot recording is performed by the wire hammers 416 to 41!2. become.

Here, since one end of the series circuit of diodes D1 to D7 and resistors R1 to R7 is always connected to the power supply terminal +Vp, it does not matter which fixed contact the movable contact C of the changeover switch SW is connected to. However, it still performs the same functions as before.

In the above embodiment, analog recording is performed using six wire hammers and digital recording is performed using seven wire hammers, but the number of these wire hammers may be increased as appropriate depending on the application.

Furthermore, the number of analog recording sections and digital recording sections is not limited to one each, and may be a combination of two or more.

The present invention is also effective for driving impact recording elements other than wire hammers.

(Effects of the Invention) As described above, according to the present invention, it is possible to realize a multi-point measuring and recording device in which the circuit space and circuit cost can be reduced to the level of a single recording mode, and the practical effects are great.

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram showing the main parts of an embodiment of the present invention, Fig. 2 is a block diagram showing an example of a multi-point measurement recording device, and Figs.
FIG. 5 is a configuration explanatory diagram showing an example of a wire dot head;
FIG. 6 is a circuit diagram showing an example of a conventional drive circuit. Q1-Q+2...Transistor, D1-D7...Diode, R1-R7...Resistor, L, ~L12...
Solenoid coil, SW...changeover switch. Figure 1 Figure 6

Claims (1)

[Claims] A first impact recording means is made up of a plurality of impact recording elements that record the magnitude of a plurality of input signals in an analog manner, and a second impact recording means is made up of a plurality of impact recording elements that print and record various types of information. In a multi-point measurement recording device having impact recording means, means is provided to supply power to the first impact recording means and the second impact recording means in a complementary manner, and these impact recording means are selectively driven by a common driving means. A multi-point measurement and recording device characterized by being driven.