SU1316029A2 - Device for displaying information - Google Patents

Abstract

The invention relates to automation and computer technology and is intended to reproduce information on discrete indicators, in particular on gas discharge indicator panels. The purpose of the invention is to increase the reliability of the device. This goal is achieved by the fact that a device for displaying information containing switch 1, gas-discharge display panel 2, second-stage decoder 3, first-stage decoders 4 and 7, resistors 5, capacitors b, sweep counter 8, an element OR 10 and a waiting multivibrator 9; The output of the multivibrator is connected to the input of the stitching of one of the first-stage decoders, and its input is connected to the output of the OR element, whose inputs are connected to the outputs of the other first-stage decoder. When the sweep is stopped, the ion passage circuit through the gas discharge insulator panel opens, which excludes the panel and the key elements switching its electrodes, i.e. device reliability is increased. After termination or elimination of the disturbing effect, the normal operation of the device is restored. 2 Il. ate with O5 o u with N) Figure 1

Description

one

The invention relates to automation and computer technology, is intended to reproduce information on discrete indicators, in particular on a gas chart of indicator panels, and is an improvement of the device according to the author. St. No. 1062769.

The purpose of the invention is to increase the reliability of the device.

FIG. 1 shows a functional diagram of the device; in fig. 2- time diagrams of the operation of the multivibrator.

The device (Fig. 1) contains a switch 1 connected to the horizontal electrodes of the gas-discharge indicator panel 2 (1Т1П), the vertical electrodes of which are connected to the second stage de-digitizer 3, the first group of inputs of which are connected to the outputs of one of the first stage 4 decoders, and the second group inputs - through resistors 5 to the zero-g bus busbar, and after 1: ondensers 6 to the outputs of another decoder 7 of the first stage, one inputs of KOTOpoi o are connected to counter 8 of the sweep, and the other input - to the output of the waiting multivibrator 9, input d which is connected to the output element

yoke 10.

I

The operation of the device is carried out

trace in a skinny way.

The input signals to the KONiMyTaTOp 1 and the counter 8 sweep, respectively, provide a periodic serial connection of the horizontal electrodes of the panel 2 and the synchronous change of the state of the counter 8 sweep. The decoders 4 and 7 of the first stage decode the state of the scan counter 8.

Signals from the output of the first decoder 4 of the first stage, coming through the element OR 10, start the awesome multivibrator 9. The duration of the output pulse of the multivibrator 9 is selected longer than the follow-up period of the input pulses. The signal from the output of the multivibrator 9 is fed to the input gate of the second decoder 7 of the first stage, thus permitting the appearance of signals at its outputs.

Permanent time of transition chains formed from capacitors

92

6 and the resis of 1-oors 5, is chosen so as to distribute without distortion the output signals from the second decoder 7 of the first stage to the inputs of the second group of the decoder 3 of the second stage. Under the action of the output signals of the decoders 4 and 7 of the first stage, the decoder 3 of the second stage provides a synchronous connection of vertical

the electrodes of the panel 2, thereby ensuring reproduction of the non-flashing image.

When stopping the sweep by not changing the state of the counter 8

sweep or malfunction of the second decoder 7 of the first stage at the ei o outputs maintain constant levels of signals that do not pass into the second group of inputs of the decoder 3

second stage. This ensures the opening of the passage

current.

I

In case of malfunction

the first stage decoder 4 stops the supply of pulses through the element 1 shina 10 (fig. 2) to the multivibrator 9. After the last pulse arrives after a time interval

At the output of the multivibrator 9 (Fig. 2), a logic zero level is set, prohibiting the appearance of signals at the outputs of another depitrator 7 of the first stage. In this case, do not arrive

signals to the inputs of the second group of the decoder 3 of the second stage and the opening of the current passing circuit is provided.

Thus, in this device, when the sweep is stopped, the current passing circuit through panel 2 is opened, which prevents panel 2 and key elements from switching its electrodes from leaving the network.

As in the known device, after the termination or elimination of the disturbing effect is restored, the normal operation of the device is restored.

formula of invention

A device for displaying information on the author. St. No. 1062769, that is, in order to increase the reliability of the device, it contains an OR element and a waiting multivibrator, the output of which is connected to the gate input of one of the decryption 3113 60294

“Dvnn ornDY of which are connected to the outputs of the drutors of the first stage, and its input t

. about shsh nvn-goy decryptor of the first stage, is connected to the output of the element Sh1I, in .h - iddikod 10 p n p n p n p & ff / xod IT

 2

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Claims (1)

Claim A device for displaying information on the author. Sv, № 1062.769, about t and i55 increase the reliability of the device, it contains the element OR and the waiting multivibrator, the output of which is connected to the entrance of the gating one of the decryption3 1316029 4 Ratios of the first stage, and the entrance of it D '> which is connected to connected to the output of the OR element, the first decoder exits of friendship. johoE ^ π π π П ··· П П g ^{1 1 1} Fi? 2