JPH0529253B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an indicator recorder that records on paper and simultaneously displays the amount of recording, and particularly relates to an improvement that allows analog and digital display to be performed simultaneously.

(Prior Art) FIG. 5 shows an indicator recorder known from Yokogawa Technical Report Vol.25P.217 (1981). In the figure, 10 is an input section that switches and inputs multiple signals such as thermocouples and resistance temperature detectors, and includes an input scanner, preamplifier, and A/D.
Consists of a converter. Reference numeral 20 denotes a keyboard section including setting keys, and 30 a head drive section for moving the pen cartridge from one end of the recording paper to the other, for example, a pulse motor is used. Reference numeral 40 denotes a wire dot unit that performs recording when the paint cartridge moves to a predetermined position. When multicolored wire dots are used, a color corresponding to an input signal is selected and dot recording is performed. 50 is a display that digitally displays the recorded signal value, 60 is a liquid crystal panel that displays the recorded signal value in analog, using a par graph (Yokogawa Technical Report Vol. 30 P. 68 (1986). 70 is a pen cartridge. 1
This is a paper feeding unit that feeds paper a certain amount each time a scan operation is performed.

The apparatus configured in this manner employs a raster scan method in which recording is performed sequentially according to data values during one scan of the pen cartridge. In order to efficiently perform recording operations, the pen cartridge performs dot printing in both directions, and is calibrated at a home position provided at one end of the paper.

(Problem to be solved by the invention) However, the analog display section 6 using liquid crystal
There was a problem that adding 0 increased the cost of parts for the device. Further, analog display is often performed by attaching a pointer to a paint cartridge, but in a raster scan type device such as the present device, there is a problem in that the position of the pointer cannot be read because the pen cartridge moves quickly.

The present invention solves these problems,
The purpose of the present invention is to provide an indicator recorder that provides an analog display by attaching a pointer to a paint cartridge.

(Means for Solving the Problems) The present invention, which achieves the above object, includes an input section that switches and inputs a plurality of input signals, and a pen cartridge that changes according to the magnitude of the signal input at this input section. In the recorder, the recorder is equipped with a recording section that performs sequential recording during scanning, a pointer section attached to the pen cartridge, a signal selection section that selects an input signal to be displayed by the pointer section, and a pointer section that selects an input signal to be displayed by the pointer section, and a pointer section that selects an input signal to be displayed by the pointer section, and a pointer section that selects an input signal to be displayed by the pointer section; and a display control section that moves the pen cartridge according to the input signal selected by the signal selection section and displays the input signal on the pointer section during the scan operation. be.

(Function) Each component of the present invention described above has the following function. The pointer section performs analog display of the signal selected by the signal selection section. The display control section determines whether the pen cartridge is in recording operation or on standby, and if it is on standby, controls the pen cartridge to move the pointer section. If the recording operation is in progress, the pen cartridge performs scanning.

(Example) The present invention will be explained below using the drawings.

FIG. 1 is a front view of an apparatus showing an embodiment of the present invention, and FIG. 2 is an enlarged view of the main part of FIG. In the figure, 31 is a paint cartridge, and 32 is a guide rod that guides the movement of the paint cartridge 31.
is controlled. 41 to 44 are recording pens provided corresponding to the first to fourth input signals, respectively;
A solenoid (not shown) causes the pen to come into contact with the paper and perform the writing operation. 51 is a display unit that digitally displays the value of the recorded signal; 52 to 55 are display units 51;
LEDs are provided corresponding to the first to fourth input signals, respectively, and are lit to indicate the type of input signal indicated by the LED. Reference numeral 61 denotes a pointer section attached to the pen cartridge 31, which displays the input signal displayed on the display section 51 in analog form. A signal selection section 80 selects input signals to be displayed by the pointer section 61 and the display section 51, and uses a keyboard, for example.

FIG. 3 is a functional block diagram of essential parts of the apparatus shown in FIG. 1. In the figure, 32 is a scan control unit that scans the pen cartridge 31 and operates the recording pens 41 to 44 to perform necessary recording, and 90 is a display control unit that detects the timing when the scan control unit 32 is not controlling the pen cartridge. be.
Note that the paint cartridge 31 repeats sweeping at a predetermined period T. When the display control unit 90 detects that the scan control unit 32 is on standby, the display control unit 90 selects the signal selection unit 80.
The selected input signal is transmitted from the input section 10 to the head drive section 30, and an analog display is performed by the pointer section 61 via the pen cartridge 31.

FIG. 4 is a time chart explaining the operation of the device shown in FIG. 1, in which A is the moving state of the pen cartridge 31, B is the up/down state of the recording pens 41 to 44, and C is the pointer section 61 in the paper width direction. Showing the location.

In the figure, the display control section 90 detects that the scan control section 32 sweeps the pen cartridge 31 and has the necessary record. Next, when the scan is completed, the display control section 90 moves the pointer section 61 to the position to be displayed via the head drive section 30, and maintains this state. When time T has elapsed, the pen cartridge 31 again enters the sweeping operation in order to perform the next recording operation.

If the paper feed is slow and one recording period can be long, it is recommended to perform the maximum value/minimum value trace recording described in Yokogawa Technical Report Vol. 28, P. 221 (1984). In this method, the maximum and minimum input values within one recording cycle are recorded as line segments, so results similar to continuous recording can be obtained, and intermittent recording is completed, which has the advantage of allowing more display time during one scan. There is.

Further, in the above embodiment, only one channel designated by the signal selection section 80 is displayed on the pointer section 61, but the input signal may be switched for each scan to sequentially display different channels.

Furthermore, it goes without saying that the number of input signals is not limited to four, and may be two, three, or five or more as long as it is plural.

(Effects of the Invention) As explained above, according to the present invention, the analog display is performed by the pointer section 61 during the standby time that occurs between scans of the paint cartridge 31, so that the simple configuration is possible. An indicating recorder can be realized.

[Brief explanation of the drawing]

FIG. 1 is a front view of a device showing an embodiment of the present invention, FIG. 2 is an enlarged view of the main parts of FIG. 1, FIG. 3 is a functional block diagram of the main parts, and FIG. A time chart explaining the operation and FIG. 5 is a configuration diagram of the conventional device. 10...Input section, 30...Head drive section, 61
. . . pointer section, 80 . . . signal selection section, 90 . . . display control section.