SU1262709A2 - Device for checking pulse trains - Google Patents

Abstract

The invention relates to a pulse technique. It can be used to control the transfer and processing of information. It is additional to auth. St. No. 1064445. The purpose of the invention is to enhance the functionality. The device contains a multi-input element OR 1, shapers 3 and 4 pulses, one-shot 6, trigger 7, multi-input element AND 2, element AND 9, input buses 11 and the main bus 12 output. To achieve the goal, the trigger 8 has been added, element 10 and 10, a pulse shaper 5 and an output bus 13. The device provides additional formation of a signal on a separate output bus when it appears on one of the input: constant-level bus logic 1. 1 Il.

Description

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The invention relates to tigpulsnoy technology, can be used to control the transmission and processing of information and is an improvement device according to the author. St. No. 1064445.

The aim of the invention is to extend the functionality by additionally generating an error signal on a separate output bus when a constant level of logic 1 appears on one of the input buses,

Figure 1 shows the functional diagram of the device; FIG. 2 shows time diagrams that explain his work. The device contains multi-input elements OR 1 and 2, the first 3, second 4 and additional 5 pulse shapers, one-shot 6, main 7 and additional 8 triggers main 9 and additional 10 elements And input bus II, main .12 and additional 13 output tires The output of the multi-input element OR 1 through the driver 4 pulses connected to the first inputs of the element 9 and trigger 8, and through the driver 3 pulses to the input of the one-vibrator 6 and the second input of the trigger 8, the output of which is connected to the first input torus 6 is connected to the first input of the trigger 7 and through the shaper 5 pulses with the second input element And 10, the output of the multi-input element And 2 is connected to the second input of the trigger 7, the output of which is connected to the second input of the element And 9, the inputs of the elements OR 1 and And 2 are connected to the input bus 1I, and the output bus 12 and 13 are connected respectively to the outputs of the elements And 9 and 10. The device operates as follows. Controlled series of pulses arriving at the input bus 1 of the device (Fig.2 o, 5, b) can be shifted in time relative to each other and have a different duration. If there are pulses on all the buses 11 of the device (time interval) and they coincide during time sufficient for reliable operation of the elements included in its composition, on the leading edge of the pulse from the output of the multi-input element OR 1

(Fig. 2) shaper 3 (-g pulses forms an impl (fig.2e) that starts the one-shot 6. The pulse from the output of the one-shot b, corresponding to the level O (figure 20, goes to the input of the trigger setup 7 in a single state and enables its operation at the post-entry to its input of the installation in the zero state of the pulse from the output of the multi-input element I 2 (Fig. 25).

Claims (1)

The pulse duration, formed by the one-vibrator 6, must be greater than the sum of the pulse durations of the outputs of the multi-input element Sh1I 1 and the driver 4 pulses. On the falling edge of the pulse from the output of the multi-input element OR the pulse shaper 4 generates a polling pulse (Fig. 2g) of the trigger state 7 (Fig. 2i) on the element 9. Thus, when the pulses coincide at all inputs of the device, there is no pulse at the device output ( figure 2 to). Trigger 7 returns to its initial state after each control cycle when the one-shot 6 returns to its initial state. If there is no pulse on one of the device buses 11 (time interval) or no pulses coincide on all device tires 11, then at the output of the multi-input element And the 2 pulse is not formed and the trigger 7 remains in the state allowing the polling pulse from the output of the driver 4 to the output of the element AND 9 (Fig. 2k), which indicates that the input pulse sequences are not compared. If a spurious pulse is detected at one input of the device (time interval t ,, tg), then the output of the multi-input element And 2 also does not generate a pulse and the trigger 7 remains in a state allowing the interrogation pulse to pass from the generator of the four pulses to output of the element is 9. In the considered situations (time interval), an error signal at the output of the element 10 (fig.2n) is not generated. Suppose that on one of the tires AND devices (Fig. 2o) at time t a constant level of logic 1 was set. In this case, the 4-shaper will not generate a pulse (Fig. 2g) and the trigger 8 will remain in state (Fig. 2 /), allowing 31 the passage of the pulse generated by the shaper 5 (Fig.2m) at the end of the one-shot 6, the output element And 10 (fig.2n). Claims of the invention. A device for monitoring a series of pulses according to the author. No. 1064445, characterized in that, in order to expand its functionality, a trigger is additionally introduced to it, a driver, a pulse driver, an I element and an output bus connected to the output of an additional element I, one of the inputs of which is connected to the output of an additional trigger, and the other input through an additional pulse shaper is connected to the output of a single vibrator, the input of which is connected to one of the trigger inputs, the other input of which is connected to the output of an additional driver of pulses.