SU1282189A1 - Device for displaying information on screen of oscilloscope - Google Patents

Abstract

The invention relates to the field of automation and computer technology, namely, devices for visually controlling the distribution of information when checking the functioning of memory modules. The purpose of the invention is to expand the field of application of the device due to the possibility of displaying information about the state of controlled objects in the form of luminous and flickering points, which is achieved by introducing a decoder, a second OR element, a frequency divider, an AND element and functional connections. Information about the state of the reference and controlled memory, respectively, goes to the inputs of the decoder. The device has a mode for displaying bright and flashing dots against the background of a raster consisting of. weakly conforming points forming squares of 256 (16 x 16), 1024

Description

The invention relates to automation and computing, in particular to devices for visually controlling the distribution of information when checking the functioning of the modules of storage devices.

The purpose of the invention is to expand the field of application of the device due to the possibility of displaying information about the state of monitored objects in the form of glowing and flickering points.

Figure 1 shows the structural diagram of the device; figure 2 - scheme decoder at or.

The device contains a counter 1 on the Y coordinate, whose input is the first input 2 of the device (the signal for changing the address), and the output is connected to the input of the counter 3 on the X coordinate, the inputs 4 of the device group are the 20 inputs of the encoder 5, the outputs of which are connected to the multiplexer inputs 6 and 7, the outputs of which are connected to the inputs of registers 3 and 9, the second input 10 of the device is the input of the trigger 11, the third 12 and the fourth 13 inputs of the device are the inputs of the decoder 14, which is connected to the second element OR 15, the separating element 16 (diode), qi Fro-analog converter 1-7 along the Y coordinate with additional bit 18, oscilloscope 19, digital-analog converter 20 along the X coordinate, first element OR 21, And 22 element, 35 frequency divider, 24 pulse generator and backlight amplifier 25, fifth 26, the device input is the third input of the element OR 15.

The decoder 14 contains the elements HE 27 and 28 and the elements And 29 and 30.

The device works in the following way.

When the counters 1 and 3 are fed to the counting input, the address changes from

the number in the scanned and reference storage devices (memories, not shown). Depending on their capacity 50 ho, one of the inputs 4 groups to the inputs of the encoder 5 select the memory capacity from the memory capacity switch (not

thirty

.

at input 2, the counters are switched;

From the truth table it can be seen that the trigger 11 is set to state 1 only if there is a high level signal on one of the output of the decoder 14, which through the OR 15 element is fed to the second input of the trigger 11. A high voltage level from the single output of the trigger 11 is recorded) low signal

level The information inputs of the multi-diode 16, digital-analogue prefixers 6 and 7 are fed by the information generator 17 and outputting the signal from the encoder 5 through the add-ons from counters 1 and 3. The oscillators of the encoder 5 set the address of the commu- nator 19, proportional

0 5

0

tatsii information inputs multiplexers 6 and 7.

Sign O (or 1) corresponds to a low (or high) level signal. Low level signals are fed to the inputs of multiplexers 6 and 7 for the raster to hold a raster for any memory capacity to occupy the entire screen of the oscilloscope, i.e. to change the scale of the raster. The address code is recorded in registers 8 and 9 by the information input signal fed to input 10 at the synchronization inputs of registers 8 and 9 and to the first input of trigger 11 at the time determined by the time for retrieving information from the memory relative to the address.

The information read from the scanned and reference memory is fed respectively to the inputs 12 and 13 of the device to the inputs of the decoder 14. A working memory similar to the checked one can be used as a reference. In this case, both memory devices have the same address inputs, information inputs and control inputs, which ensures that the control information is recorded and read from them. The decoder 14 converts the information arriving at its inputs in accordance with the truth table.

20 35

40

From the truth table, it can be seen that trigger 11 is set to state 1 only if there is a high level signal on one of the output of the decoder 14, which through the OR 15 element goes to the second input of trigger 11. High voltage level from a single output of trigger 11 is recorded

digital register code 9. The beam on the screen of the oscilloscope 19 occupies a certain position. At the same time, the light pulse generated by the element OR 21, the element AND 22, the frequency divider 23, the pulse shaper 24 and the light amplifier 25 is supplied to the oscilloscope 19.

The state at the outputs of the decoder 14 varies depending on the information supplied to the inputs 12 and 13 of the device, and in accordance with the truth table.

Let state 1 be set at the first output of decoder 14, (the third row of the truth table: 1 is read from the reference memory, O is checked from the checked memory), which through the OR 1 element goes to the second input of the backlight amplifier 25, to the first input of which a negative pulse is given polarities formed from the signal. Information output by the shaper of 24 pulses. The amplitude of the backlight pulse at the output of the backlight amplifier 25 is determined by the expression

out IEU. (one)

where E is the supply voltage.

The duration of the output signal of the pulse driver 24 is chosen experimentally. It is bounded above by the signal's follow-up period. Information output, and below - by the BRIGHTNESS of the bright points of the displayed information.

Thus, on the screen of the oscilloscope 19, a light with a dot with maximum brightness is indicated, corresponding to the absence of 1 in the checked memory at the given address.

Let the second output of the decoder 14 establish state 1 (the second row of the truth table: O, -a is checked from the reference memory — 1), which goes to the AND 22 element and allows the pulses from the output of the splitter 23 to pass through it to the input element OR 21, at the other input of which level is O. Pulses through the element OR 21 are fed to the second input of the backlight amplifier 25, to the first input of which pulses are received from the driver 24 pulses. If at the second input of the amplifier 25, the illumination is level G (presence of a pulse), then the amplitude of the signal at its output is determined 89

is made by the expression (1), if the level is O (no pulse), then the amplitude of the signal at its output is determined by

and

yyh

 | E (- and ,, ..

(2)

where E is the power supply voltage;

 - the stabilization voltage of the Zener diode of the amplifier 25. The frequency of the amplitude of the signal at the output of the backlight amplifier 25 is set by the division factor of the frequency divider 23, which is selected from the condition

 k 1- - noScft

(3)

where k is the frequency division factor, f.p is the high-order switching frequency at the multiplexer output, depends on the speed of the controlled memory, f ,, is the frequency of the backlight pulses. Thus, for the case when the C of the reference memory reads O, and from the checked one — 1, a flickering point is being indicated on the screen of the oscillograph 19 — 1 — zener diode. The optimal frequency that provides the best perception of operators is the frequency in the range (4-5) Hz. The frequency divider 23 is

serial binary counter. I

The device has a mode for displaying bright and flashing dots against a raster background consisting of low-luminous dots, forming squares of 256 (16 X 16), 1024 (32 X 32), and so on, or rectangles of 512 (16 X 32 ), 2048 (32 x 64) and so on, depending on the storage capacity. The mode allows you to visually determine the address in which the information read from the scanned storage device differs from the reference one. To enable this mode, a level 1 of the operation mode switch (not shown) is applied to the fifth input 26 of the device. At the same time, the trigger 11 by the signal Issuing information is constantly in state 1, since the second input of the trigger 11 is set to level 1 through the OR element 15. The backlight pulses are generated at all points of the raster.

The amplitude of the light pulses at the points of the raster, where the information of the reference and checked memory matches, is determined by the expression (2), since in this case the level O arrives at the second input of the backlight amplifier 25. The oscilloscope screen 19 displays a raster of light points, brightness which is proportional to the amplitude of the illumination pulses according to equality (2). The portion of the monitored information, which differs from the reference one, is displayed in dots with a brightness proportional to the amplitude of the illumination pulse from the expression (1). At the same time, information about the excess 1 is displayed as blinking points with a brightness interval that is proportional to the voltage stabilizing the zener diode of the backlight amplifier 25.

The formula of the invention The device for displaying is connected to another input of the digital-analog converter by the Y coordinate, an encoder whose outputs are connected to the corresponding inputs of the multi-analog converter.

The 5 typexes, the inputs of the encoder are the inputs of the device group, one of the trigger inputs is the second input of the device, and connected to the other inputs of the registers in X coordinates

W and Y, characterized in that, in order to expand the field of application of the device due to the possibility of displaying information about the state of controlled objects in the form of luminous and flickering points, it contains a pulse shaper, hence the connected decoder inputs of which are the third and fourth inputs device, and the first element OR, the third input of which is the fifth input of the device, the output of the first element OR is connected to another input of the trigger, one of the inputs of which is connected to the input

15

On the oscilloscope screen, pulse mapper, and sequentially connected to another digital-to-analog converter Y coordinate, an encoder whose outputs are connected to the corresponding multiplexer inputs, the encoder inputs are the device group inputs, one of the trigger inputs is the second device input and connected to the other inputs of the registers by the X coordinates

and Y, characterized in that, in order to expand the field of application of the device due to the possibility of displaying information on the state of the objects being monitored in the form of luminous and flickering points, it contains a pulse shaper, serially connected decoder, whose inputs are the third and fourth inputs of the device and trans.

0 OR element, the third input of which is the fifth input of the device, the output of the first OR element is connected to another trigger input, one of the inputs of which is connected to the input

five

X and Y chain from a serially connected counter, multiplexer, register and digital analog converter, whose outputs are connected respectively to the inputs X and Y of the oscilloscope, the input of the counter according to the Y coordinate is the first input of the device, another output of the counter is connected to the input the counter on the X coordinate, the trigger, the output of which is through the separating element

frequency coupler, whose input is connected to the first multiplexer output along the X coordinate, And element, the second input of which

connected to the second output of the decoder, and a second OR element, the second input of which is connected to the first output of the decoder, and a backlight amplifier, the second input of which is connected to the output of the pulse shaper, and the output to the oscilloscope input.

1

FIG. 2

Claims (1)

Claim A device for displaying Information on an oscilloscope screen, containing, according to the X and Y coordinates, a chain of consecutively connected counter, multiplexer, register, and digital-to-analog converter, the outputs of which are connected respectively to the X and Y inputs of the oscilloscope, the counter input along the Y coordinate is the first input of the device, another output the counter is connected to the counter input at the X coordinate, a trigger, the output of which 35 is connected through a separating element to another input of the digital-to-analog converter at the Y coordinate, cipher a torus whose outputs are connected to the corresponding inputs of the multiplexers, the encoder inputs are the inputs of the device group, one of the inputs of the trigger is the second input of the device and connected to other inputs of the registers along the coordinates X and Y, characterized in that, in order to expand the scope of the device due to the possibility displaying information about the state of controlled objects in the form of luminous and flickering points, it contains a pulse shaper, a decryptor connected in series, the inputs of which are three the fourth and fourth inputs of the device, and the first. 20th OR element, the third input of which is the fifth input of the device, the output of the first OR element is connected to another trigger input, one of the inputs of which is connected to the input 25 of the pulse shaper, and the frequency divider is connected in series, the input of which is connected to the first output of the multiplexer in coordinate X, element And, the second input of which 30 is connected to the second output of the decoder, and the second OR element, the second input of which is connected to the first output of the decoder, and a backlight amplifier, the second input of which is connected to the output of the pulse shaper, and the output to the input Z of the oscilloscope. FIG. 8