SU1282110A1 - Device for displaying information - Google Patents

Abstract

The invention relates to automation and can be used to present information about high-speed processes in an intimate manner. The aim of the invention is to improve the accuracy of the display by organizing a three-coordinate scanning mode. The goal is achieved by introducing into the device a sampling-storage unit, AND elements, controlled pulse drivers, a D / A converter, a control unit, and an analog key. 1 hp f-ly, 2 ill.

Description

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The invention relates to automation and can be used to provide information about fast-flowing processes in an intimate manner.

The aim of the invention is to improve the display accuracy by organizing a three-coordinate sweep mode.

FIG. 1 shows a functional diagram of the device; in fig. 2 is a control block diagram.

The device contains (Fig. 1) controlled pulse generator 1, display unit 2, first 3, second 4, third 5 and fourth 6 counters, first 7 and second 8 comparators, trigger 9, controlled delay element 10, sampling block 11 storage, first 12, second 13 and third 14 elements And, the first 15 and second 16 controlled shapers, a digital-to-analog converter (D / A converter) 17, a control unit 18, an analog switch 19, a device synchronization input 20, and device information input 21.

The control unit 18 (FIG. 2) comprises a pulse generator 22, a first 23, a second 24, and a third 25 one-oscillator, the OR element 26, and a trigger 27.

The device for displaying information works as follows.

The sync pulses from the source of information to the input 20 of the device and to the input of the element 10 have a follow-up period. The delay element 10 delays the sync pulses, which are square pulses with an amplitude of 3 V and a duration of 10 m / s. Adjusting the delay time allows you to change the range of displayed signals by selecting the area of interest. From the output of element 10, the synchronization pulses arrive at the S-input of the trigger 45 9 and the counting input of the counter 4. Generator 1 outputs pulses with a 3 kHz following frequency, which, for example, when displaying the data obtained from oceanographic studies, corresponds to the passage of an acoustic pulse in the water of one meter. The trigger 9 is triggered by a sync pulse, allowing pulses to pass through the element 12 to the counting input of the counter 3. The code from the rj counter 3 is fed to the boiler 7, to which the code from the counter 4 also flows. ah comparator 7 vschaet sigZO

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The signal is converted into a square-shaped pulse with a duration corresponding to an echo time of 1–5 m. The input signal at input 21 is fed to a key 19, the control signal for which is the signal at the output of the shaper 15. To display this signal in block 2, it is necessary to organize the storage of the signal for the time determined by the frequency of the pulses of the parcels and at the same time allowing the signal amplitude to be remembered during the passage of one meter. These tasks are implemented by a circuit made on the basis of a block 11 of sample storage, a comparator 8, two elements 13 and 14, a reversible counter 6, a DAC 17 and a block 18 of control.

Each hundredth pulse of the counter 4 is fed to the counter 5, which forms the scan lines along the Y coordinate of the display unit 2. The outputs of counter 5 control the sweep along the X coordinate.

Claims (2)

1. A device for displaying information containing a display unit, a four counter, a controlled pulse generator, two comparators, a trigger and a controlled delay element whose input is a device sync input, and the outputs are connected to the trigger S input and the second count input, respectively the counter, whose information outputs and information outputs of the first counter are connected to the corresponding inputs of the first comparator, the overflow of the first counter is connected to its reset input and to the R input of the trigger , the overflow output of the second counter is connected to its reset input and to the counting input of the third counter, the information outputs of the second and third counters are connected to the corresponding scan input of the display unit, characterized in that, in order to improve display accuracy by organizing the three-coordinate sweep mode, the device contains sampling-storage, three elements And two controlled pulse shaper. 3 . 1 digital-to-analog converter, a control unit and an analog key, the information input of which is the information input of the device, the control input connected to the output of the first controlled pulse conditioner, and the output to the input of the sample-storage unit whose output and output of the digital-analog converter are connected to the inputs the second comparator, the first output of which is connected to the first inputs of the second element I and the control unit, and the second to the first input of the third element Inc to the second input of the control unit, the third in The one of which is connected to the output of the first controlled pulse generator, the input of which is connected to the output of the first comparator, the outputs of the control unit are connected to the second and third inputs of the second and third elements AND, the outputs of which are connected respectively to the inputs of the forward and reverse counting of the fourth counter, the outputs of which connected to the inputs of the digital-analog converter, the output of which is under ten The key is connected to the information input of the display unit, the inputs of the first element I are connected to the outputs of the trigger and the controlled pulse generator, and the output is connected to the counting input of the first counter, the inputs of the second controlled pulse conditioner are connected to the outputs of the third counter . " 2. The device according to claim 1, characterized in that the control unit comprises a pulse generator, - three one-shot, a trigger and an OR element, the output of the pulse-generator is connected to the first inputs of the one-shot, the second inputs of which are respectively the first, second and third inputs of the block The codes of the first and second single vibrators through the OR element are connected to the S input of the trigger, the R input of which is connected to the output of the third single vibrator, the Llkhod trigger and the output of the pulse generator are the outputs of the block. Tcvhift w 7 /