SU853814A1 - Device for monitoring pulse distributor - Google Patents

Description

(54) DEVICE FOR DISTRIBUTOR CONTROL

one

  The invention relates to radio engineering and can be used in automation and computer engineering.

A device for controlling a pulse distributor is known, containing n-1 elements AND, the first inputs of which are connected respectively from the second pulse-distributor outputs, and the outputs of the elements AND are connected to the corresponding inputs of the element OR NOT t However, such a device has a complex structure.

The purpose of the invention is to simplify the device by reducing the total number of elements.

To do this, the device for controlling the pulse distributor, containing n-1 elements AND, the first inputs of which are connected respectively from the second one and n outputs of the pulse distributor, and the outputs of the elements AND are connected to the corresponding inputs of the OR-NO element n-1 delays. The output of each element And through the corresponding delay element connected to the second input of the corresponding element H, and to the second input. The first element And through the first

PULSES

The delay element is a signal from the first output of the pulse distributor.

The drawing shows a structural electrical circuit of the proposed device.

The device contains AND 1 elements, a 2-pulse distributor, an OR-NOT 3 element, 4 delay elements, output buses 5.

The device works as follows.

way ..

In the non-operating state of the distributor 2 (in the absence of motion impulses) there are no signals at all its outputs (zero logic levels).

In this case, the elements AND 1 are closed at the first entrance, and on the output tires 5 and the inputs of the element OR NOT

20 3 there are zero logical levels. Therefore, at the output of the element OR-NOT 3 there is a single logical level of the error signal. This

25, the error signal in the idle state of the distributor 2 is considered as a sign of its initial state. When the first impulse of motion is applied to the input of the distributor 2 at 30, the unit produces a logical level at its first output, which goes to the first output bus 5, to the input of the first element 4 (to form the first input on the second input and 1 resolution to pass the signal the second output of the distributor 2 to the output of the first element AND 1) and to the input of the element OR NOT 3 A single logical level that arrives at the input of the element OR NOT 3 forms at its output a zero logical level (no error). The signal from the first output of the distributor 2, after the first element 4 passes to the second input of the first element I 1, to the first input of which, with the correct functioning of the distributor 2, receives a single logic level from the second output of the distributor. The signal from the output of the first element And 1 goes to the second output bus 5, to the input of the second element 4 delay to form a resolution for passing the signal from the third output of the distributor 2 and to the input of the OR-NOT element 3. It is known that the pulses from the outputs of the distributor 2 pulse sequence, in which the falling edge of each previous pulse coincides in time with the leading edge of the subsequent one.

Therefore, the second pulse from the output of the distributor 2 supports zero logic level at the output of the element OR NOT 3.

The signal from the output of the first element And 1, passed the second element 4, is fed to the second input of the second element n-th And 1, the first input) of which receives a single logic level from the third output of the distributor 2, etc.

The operation during one cycle (until the appearance of the last pulse from the output of the distributor 2) is similar to that described.

Consequently, the operation of the distributor 2 is controlled from the first motion pulse applied to its input to the last, taking into account the length of the signal from the last output.

When resetting the distributor at the end of the work cycle and, consequently,. but, the control at the output of the OR-NOT 3 element appears again, the logical level of the error signal,: considered as a sign of the initial one.

Suppose that after the appearance on i-Toro of the i-Toro device of a single logic level i + 1, the first signal at the output of the distributor 2 did not form or J was formed, but not at the i + 1 -th output. In this case, a single logical level, passed through the i-th element 4, does not pass through the i-th element and 1, because at its first input there is no unit logic level from the i + 1 th output of the distributor.

In this case, the strict sequence of generation at the inputs of the corresponding i + 1 elements AND 1 is violated.

5 permission signals for passing to the device output of single logical levels from the remaining outputs of the distributor 2. Therefore, all subsequent pulses of the distributor (from

0 i + 1 to p) does not pass to the output buses 5, and an error signal is generated at the output of the element OR NOT 3.

A new set of features of the proposed device allows

5 to monitor the distributor in the event of various types of failures.

Thus, the proposed device provides in full and simple means of monitoring the operation of the distributor.

Claims (1)

1. USSR author's certificate No. 639149, cl. And 04 L 13/12, 1976 (prototype).