SU1307582A2 - Scaling device with checking - Google Patents

Abstract

The invention relates to the field of automation and computer technology, is complementary to the author. 1149400, and can be used in systems of automatic control and management. The purpose of the additional invention is to increase the completeness of the control. To achieve this goal, elements of equivalence 13.1-13.5, element OR 14, trigger 15 are entered into the device. 1 Il. /3./ i.gu1-2gu (L el N

Description

The invention relates to automation and computer technology, is an improvement to the device auth.St. 1149400 and can be used in systems of automatic control and management.

The aim of the invention is to increase the completeness of the control.

The goal is achieved by introducing new design features that provide for the detection of faults of the type the simultaneous presence of the same potentials at the outputs of any counter size.

The drawing shows a block diagram of a scaler with control.

Scaler Sodernst counter 1, the first element And 2, the trigger torus

additional trigger 7, element 8 of the display, the third element And 9, the element ShZH-NOT 10, the second additional

3, delay element 4, one-second second element AND 6, first

trigger 11, counting input 12, equivalence elements 13.1-13.5, OR element 14 and the third additional trigger 15.

The inputs of the element 6 are connected to the inverse outputs of the bits of counter 1, to the output of the one-shot 5, the input of which is connected to the direct output of the higher bit of counter 1, and to the output of the element 4 of the delay which is connected to the output of the element 2 and to the first input trigger 3, the second input and output of which are connected respectively to the output of the element 4 for

and with the first input element And 2 second input {which is connected to the counting input of the counter 1 and the output of the element And 9, the first input of which is connected to the counting input 12 of the device, the second input of the element And 9 connected to the inverse output of the trigger 7, input, etc. my output is connected respectively to the output of the element 6 and the input of the display element 8, the third input of the element 9 and 9 is connected to the direct output of the trigger 11, the direct input of which is connected to the output of the element OR-NOT 10, the inputs of which are connected to the inverse outputs of the bits counter 1 h the fourth input element And 9 is connected to the inverse output of the trigger 15, the installation input in 1 of which is connected to the output of the element ItTM 14, the inputs of which are connected to

five

ABOUT

five

about

five

the outputs of elements 13.1-13.5 of equivalence, the inputs of each of which are connected to the direct and inverse outputs of the corresponding bit of counter 1.

The proposed device works as follows.

In the initial state from the direct output of the trigger 11 to the third input of the element I 9, the signal O is received, however, if all the triggers of the bits of the counter 1 are set to 1 and there are no permanent-type faults at their inverse outputs, the signals O at the inputs element OR-NOT 10 signal 1 at the output flips trigger 11, and the third input element AND 9 signal 1. In addition, if there are no faults of the type of the simultaneous presence of high (1) or low (O) potential at both outputs of any trigger trigger counts a 1. from the outputs of elements 13.1-13.5 of equivalence to the element OR 14, O is applied. As a result, from the output of the element OR 14 to the input of the installation in 1 trigger 15 O is applied, leaving trigger 15 in the zero state, and from its inverse output to the fourth input element And 9 is applied 1, Trigger 7 in the initial state due to the presence at its input O at its output associated with element 8 of the display also generates a signal O, and at the inverse output a signal 1, which is present at the second input of the element And 9.

In this state, with signals 1 at the second, third and fourth inputs of the element AND 9 and in the presence of a pulse sequence at the input 12 of the device, the latter passes through the element AND 9 to the counting input of counter 1. From the first input pulse of the pulse sequence starts counter 1, and also element 4 delay. Simultaneously with the launch of the delay element 4, the output pulse of the element And 2 switches the trigger 3 and on the other input of the element And 2 the prohibition signal from the output of this trigger appears. Pulse from the output of the element 4 delay

returns the trigger 3 to the initial state, as a result of which a resolution pulse is applied to the input of the element 2, the pulse from the output of the delay element 4 is also fed to the input of the multi-input element 6, the other inputs of which are connected to the inverse outputs of the bits of the counter 1, and one of the inputs - with the output of the one-shot 5, connected by the input to the forward output of the higher 5 bits of counter 1. If counter 1 is operational, then a moment comes when all the inputs of the multi-input element And 6 simultaneously appear 1 removed from the inverse outputs W tr the gaps of counter 1, the output of the one-shot 5 and the element 4 delay. In this case, signal 1 appears at the output of element 6, by which trigger 7 is switched, which leads to the appearance of signal 1 at the direct output of this trigger and signal 0 at its inverse output. Last signal 5

temporary presence at both outputs of any trigger of counter 1 high (1) or low (O)., potential in the proposed device by trigger 15, OR 14 element and equivalence elements 13,1-13.5 eliminates the possibility of passing a pulse sequence to the counting input of counter 1 and does not turn on

the completeness of the control is significantly increased.

the invention

scrap entering one of the entrances

element 9, the passage 20 of the indication element 8 is forbidden, which signal-input pulse sequence means that counter 1 is working

through the element And 9 to the input of the counter 1

a signal from the direct trigger output

7 includes an indication element 8,

signaling the health of the account- Formulas

chica.

In the event of failure of at least one of the bits of the counter, i.e. the occurrence of a constant-unit-type fault at the inverse output of the discharge trigger, the output of the element 6 does not appear and the display 8 does not turn on. In the event of a failure

The recalculation device with control on avt.sv. No. 1149400, characterized in that, in order to increase the completeness of the control, it introduces elements of equivalence by the number of bits of the counter, the OR element and the third additional trigger, the inverse output of which is connected to

If the type of simultaneous presence of 1 or O on both outputs is 35, the fourth additional input of three would be one, for example, the first discharge of counter 1, triggered by an And element, the input setting to 1 of the third additional trigger is connected to the output of the OR element, inputs. which is connected to the outlets

ment 13.1 equivalence connected

To this bit of counter 1, and a signal 1 which, through many 40 equivalence elements, outputs, each element OR 14 is fed to the last of which is connected to the direct and

my trigger input is 15, its translation by the inversion outputs of the corresponding

unit state, and with its inverse-discharge counter.

Compiled by the Early 5 SSSI ° P 1I E3SS S2 Techred 1. Khodanich Proofreador25.

Order 1641/55 Circulation 902Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Production and printing company, Uzhgorod, st. Project, 4

The fourth output of the element And 9 is applied. The signal O stops the access of the input pulse sequence to the counting input of counter 1, the signal of the output of element 6 does not appear and the display element 8 does not turn on, indicating a malfunction of counter 1.

Thus, if there is one type of fault in the meter

temporary presence at both outputs of any trigger of counter 1 high (1) or low (O)., the potential in the proposed device by trigger 15, OR 14 element and 13.1-13.5 equivalence elements eliminates the possibility of passing a pulse sequence on the counting input of counter 1 and does not turn on

the completeness of the control is significantly increased.

the invention

The recalculation device with control on avt.sv. No. 1149400, characterized in that, in order to increase the completeness of the control, it introduces elements of equivalence by the number of bits of the counter, the OR element and the third additional trigger, the inverse output of which is connected to

of the second element AND, the installation input into 1 of the third additional trigger is connected to the output of the OR element, inputs. which is connected to the outlets

Claims (1)

Claim Jereschet device with control on autosw. No. 1149400, characterized in that, in order to increase the completeness of control, it introduced elements of equivalence in the number of bits of the counter, an OR element and a third additional trigger, the inverse output of which is connected to the fourth additional input of the third element And, the installation input is in 1 third additional trigger connected to the output of the element OR inputs. which are connected to the outputs of the equivalence elements, the inputs of each of which are connected to the direct and inverse outputs of the corresponding discharge of the counter.