SU991587A1 - Time interval shaper - Google Patents

Description

(54) FORMER OF TEMPORARY INTERVALS The invention relates to a pulse technique and can be used in a system of hardware control of computer equipment, in a control system of specialized computers, in separate nodes of universal computers, as well as in process control systems. A device for forming time intervals is known that contains a decoder, control triggers and several C 13 clock generators. However, this device generates overlapping time intervals that are multiples of the cleared base degree two, multiplied by the period of clock pulses, requires connecting several clock generators for spreading. This functionality allows for large temporary errors. Closest to the invention, & a device for generating interchangeable time intervals, comprising a clock generator, the output of which is connected to the first input of the first and second element. And, the outputs of which are connected to the first and second counting devices, the output of the first counting device is connected to the first input of the control trigger. The first output of the control trigger is connected to the second input of the first element, and the second output of the control trigger is connected to the second input of the second element I and the clock input of the shift register, the first inputs of the coincidence elements are connected to the gates of the second counter, the second inputs are connected with the outputs of the shift register, and the outputs are connected to the inputs of the OR elements, the output of which is connected to the setting bar of the second counting device in the initial state and to the second input of the control trigger Eni 2J. However, this device has a narrow functional purpose, since it ensures that only one after399 additional time intervals is obtained and to obtain several sequences — time intervals that overlap in time, several devices of this type are required, which will complicate the design and reduce the system reliability. whole The aim of the invention is to expand the functional capabilities and increase reliability. The delivered circuit is achieved by the fact that a time interval generator containing a pulse generator, the outputs of which are connected to the first inputs of the first and second I elements, to the second inputs of which are connected to the control trigger outputs, the output of the first And element, is connected to the first input of the OR, additionally, a pulse generator, an OR element, two programmable logic arrays, a pulse counter, an AND element, a trigger and a key, with an additional output, a trigger connected to the third inputs n The first and second elements And 4qpe3 are in series connected an additional generator and a key to the first input of an additional element AND, the second input of which is connected to the input of the element AND and to the first input of an additional element OR, whose second input is connected d by the per input of an additional trigger, the third input connected to the output of the additional element I, and the output connected to the first input of the control trigger, to the second input; the first pulse counter, and through an additional pulse counter to the first input of the first pin The logic input matrix, the second input of which is connected to the first input of the second programmable logic array, the second input of which is connected to the output of the second pulse counter, and the output is connected to the first input of the second pulse counter and the second input of the second pulse counter is connected to the output of the OR element, the first output of the first programmable logic array is connected to the first input of the additional element AND, the second output is connected to the second input of the first pulse counter s, a first output connected to a second input of the additional AND gate and a second output connected to the second input; control trigger. The drawing shows the functional diagram of the shaper time intervals. 7 Shaper time intervals, contains g operators 1 and 2 pulses, elements AND 3-5, elements OR 6 and 7, control trigger 8, trigger 9, counters 1-12 of pulses, programmable logic matrices (PLM) 13 and 14, key 15 The drawing also shows the bus 16 Start, ishna 17 programming pulses. output 18.7. The device operates as follows 1. Implementation mode for several sequences of time intervals (from 8 to 64). Shaper time intervals works as follows. At the initial moment of time, all counters 1О - 12 are located at the initial state. From the bus 17 to the programmable input of the PLM 13 and 14, the code of one of the time sequence from the computer or from the code switches is fed. Start pulse, bus 16 is set to one state trigger 9, enabling generator 1, simultaneously this pulse, passing through the element OR 7, sets control trigger 8 to time counting mode, and counter 10 to write mode for the duration of this the signal, to which the first code of the selected constant from PLA 13 is recorded, according to the signal from counter 12, Upon completion of the required time interval, the overflow pulse c. the counter 10 sets the trigger 8 of the control to the TaKTajK counting mode a pulse yj. Oscillator 1 through the element AND 4 and through the i-cut element OR 6 goes to the input of the counter 11, fixing the first clock, and through the element OR 7 sets the control trigger 8 to the time counting mode and writes the new code to the counter 1O. According to the code that counts1: .a 11 from the output of the PLA 14, a code is output to the output bus 18, forming an output, time diagram. To increase the duration of time intervals, a code O is written to the counter 10 from the PLA 13, followed by a enable signal to the first input of the AND 5 element, to the input of which a signal is sent from the older paaps a counter 10 and from the output of the AND 5 through the OR 7 element you give a pulse to counter 12, which operates in a time delay mode, wherein the PLA 13 is programmed in this way. that the zero code is maintained at the output of the constant and generates the following code when the formation of the desired length of the clock on the particular state of the counter 12 is completed. This is a new time counting with the old state of the counter D The counting time and time mode continues to alternate until the end of the fsmfm time j | in the clock, in the last cycle from the PLM 14, it dehydrates from the generation failure at the input, collects trigger 9 and reset the counter of the counter 11. 2. The mode of realization of the randomly replaced timers x of intervals. The key 15 is turned on and the pulse hm. Start-up from bus 16 is allowed to work on generator 2. Generator 2 operates at the same clock frequency that generator 9 does. 11, the formation also proceeds in an identical manner as with real-time signals: except that the durations of the output time intervals vary randomly within a clock frequency period. Thus, the proposed “1st shaper, as compared to the known ones, allows to expand the functional capabilities and increase the reliability of the device.” FORMULA 3 O B R E S The time spanner containing the generator pulses, the outputs of which are connected to the first inputs of the first and second elements AND, the inputs of which are connected to the outputs of the control trigger, the output of the first element .And connected to the first input of the pulse counter, the element OR, and the tetl that in order to expand the functional Opportunities and reliability, operation, a pulse generator, an OR element, two programmable logic matrices, a pulse counter, an AND element, a trigger and a key, 1 output of the additional trigger connected to the third AND inputs of the first and second elements AND and through sequentially connected are entered into it additional generator and key - to peryu. code; an additional element AND, the second input of which is connected to the input of the element AND the first input of the additional element OR, the second input of which is connected to the first input of the additional trigger, the third input is connected to the output of the additional AND, and the output is connected to the first input of the control trigger pulse counter and through an additional pulse counter with the first input of the programmable logic matrix, the second input of which is connected to the first input of the second programmable logic matrix, the second input One of which is connected to the output of the second counter of the pulses, and connected to the first input of the second countable Illus pulses and to the second, the input of an additional switch, the second input of the second 1H pulse sensor is connected to the output of the OR element, the first output of the first programmable 1 logic matrix is connected to the PCR an additional element And, the second output is connected to the second input of the first pulse counter, the first output of which is connected to the second INPUT of the additional AND element, and the second output is connected to the second input of the trigger board Sources of information taken into account in the examination 1 .. USSR author's certificate; No. 434401, CP. G06F 1 / O4, 1975. 2. USSR Author's Certificate, No. 547031, N OZ K 3 / 84.1977.

/

 .

4b

CM

 / K

4 h

-is

 I / w v

Lt

W CH

7 k W V

Claims (1)

Claim Shaper of time intervals, ₃₅ containing a pulse generator, the outputs of which are connected to the first inputs of the first and second elements AND, to the second inputs of which the outputs of the control trigger are connected, the output of the first element 49 And is connected to the first input of the pulse counter, the OR element, and w ~ w and w with i in order to expand. functionality and improve reliability, operation, it additionally includes a pulse generator, an OR element, two programmable logic arrays, a pulse counter, an And element, a trigger and a key, and the output of an additional trigger is connected to the third ': inputs of the first and second elements And and through the additional generator and the key are connected in series to the first input of the additional AND element, the second input of which is connected to the input of the AND element and to the first input of the additional OR element, the second input of which is dined with the first input of the additional trigger, the third input is connected to the output of the auxiliary ”element And, and the output is connected to the first input of the control trigger, with the second input of the first pulse counter and through the additional pulse counter with the first input of the first programmable, Logic matrix, second input which is connected to the first input of the second programmable logic matrix, the second · input of which is connected to the output of the second pulse counter, and the output is connected to the first input of the second pulse counter and the second input an additional trigger, the second input of the second pulse counter is connected to the output of the OR element, the first output of the first programmable V logic matrix is connected to the first input of the additional element ^ AND, the second output is connected to the second input of the first * pulse counter, the first output of which It is connected to the second input dopoi- ⁵ undergarments aND gate and a second output connected to the second input of the control latch.