SU1462119A1 - Device for controlling process of preparing multicomponent mixtures - Google Patents

Abstract

The invention relates to the automation of production processes and can be used in the development of automated control systems for the preparation of multicomponent mixtures in the tire, radio engineering, construction industry sectors. The purpose of the invention is to increase speed, reduce metering errors and simplify. The device contains mass sensors, an electronic computer and an information input block, including a series-connected pulse generator, a binary counter, a decoder, an amplifier, a switch, the information inputs of which receive signals of the mass sensors, a memory, the output of which through a cyclic code converter Gre is binary connected to the data bus of the computer interface, a pulse shaper, the input of which is connected to a pulse generator, an AND series element connected to it, an NAND element, an input to Secondly, it is connected to the control bus for reading the computer interface, and the output is connected to the second input of the element I and the control input of the memory read, the write enable input of which is connected to the output of the element I, the multiplexer of the address, the two address inputs of which are connected to the computer and the output of the binary counter, the address selection inputs — with the outputs of the AND and NAND elements, and the output — with the memory address input, connected in series to the selector of the information input unit, whose address input is connected to the address a computer interface, information - yield AND gate, and an output - to an input of AND-NO element, a delay element whose output is connected to the control bus computer interface. 1 il. e (L t

Description

The invention relates to automated production processes and should be used in the development of automated control systems for the preparation of multi-component mixtures in the radio, radio, construction, construction industries.

The purpose of the invention is to increase the speed, reduce the dosing errors and simplify the process control of preparing multi-component mixtures.

 The drawing shows a schematic of the device.

i The circuit includes in series with; a unified pulse generator 1, a binary counter 2, a decoder 3, amplifier A, switch 5, memory block 6, the output of which is connected through three converter Cyclic He 7 to binary with data bus D of computer interface 7a pulse generator 8, on the code of which the post-signals of the pulse generator 1 are connected in series with element I 9, element I-NE 10, whose input is connected to the control read bus RD of computer interface 7a, and the output from the second input element 9 and control input read EKD. memory location 6, multiplexer address 11, address inputs A1 and A2 of which are connected to address bus A of computer interface 7a and output of binary counter 2, inputs of address selection -SE1 and SE2, respectively, with outputs of Elements I 9 and AND-NO 10, and input - with address input A of memory 6; serially connected selector 12 for selecting an input block; whose address input is connected to address bus A of a computer interface, 7a information input DE - with output element I 9, and output - with second input element AND-NOT, an element of the rear 13, the output of which is connected to the control The bus readiness N of the computer interface 7a, the mass sensors 14, the outputs of which are connected to the information inputs D - D of the switch 5.

DEVICE works as follows.

The pulse generator 1 emits pulses with a frequency of 1 kHz, which are input to a binary counter 2 that generates address codes for sensors 1 and 14. The address code goes to

five

0

the input of the decoder 3 and through the amplifier 4 to the interrogation of the switch 5, to the information inputs D, D of which signals of the weight sensors 14 are continuously received. The switch 5 is in the immediate vicinity of the weight sensors 14 and therefore the communication lines between them are short . From the output of the switch 5, the mass code of the selected sensor 14 of the mass is fed to the data input of the memory unit 6. At the same time, the address code from the output of the counter 2 is fed to the address input A1 of the multiplexer of address 1 1.

In the absence of a signal to access the information input unit, the side of the computer interface 7a from the output of the selector 12 receives a inhibitory signal to the first input of the NAND element 10. At the same time, the first input of the AND 9 element from the output of the NID 10 element receives a signal allowing the pulse to pass records arriving at the second 5 input element AND 9 from the output of the pulse generator 8. G output of the write resolution ERW of the memory block 6 y pa input of the sampling address SE1 of the multiplexer 11 and the input DE of the address selector 12. At the same time, the address input A of the memory block ti 6 comes from multi plexer 11 is the address code, and the mass code of the selected metering unit is recorded in the corresponding cell of Memory 6. The signal received at the DE input of the address selector 12 prohibits access to the information input block from the computer interface 7a while the information is being written into the memory cell 0 ™. the end of the write pulse to the memory block 6 from the output of the AND 9 element to the DE input of the selector 12 for selecting the information block receives a signal allowing access to the device from the computer interface 7a if it is necessary to read the information from the memory block 6. At the same time The computer 7a receives the sampling code of the information input unit at the input A of the information block selection selector 12 and the read signal RD at the input of the AND-NE element 10, the output of which generates a signal arriving at the second input of the AND 9 element and prohibiting signal suppression from the driver pulses 8. Thereby, the prohibition of recording information in memory 6 when reading information is introduced.

0

five

50

55

314621

At the same time, the signal from the output of the element IS-NE 10 samples the address of the polled memory cell 6, transmitting the address code from the A2 input of the multi-hexagon 11 to the address input A of memory 6, and forms an ERD reading command from memory 6. At the same time, from the selector output 12, the selection of the information block through the delay element 13 on the interface of the computer 7a readiness signal N.

Thus, a cyclical interrogation of the mass sensors through the switch is carried out and the obtained information is stored in the two-way memory cells, and the information is stored in the memory without capturing the computer interface, which saves the power resources of the computing complex storing information about the current state of the dosed mass into the memory, reduces the metering fault, shortens the number of DCO modules and the number of communication lines, 25

Claims (1)

Invention Formula A control unit for the preparation of multicomponent mixtures containing a mass sensor and an electronic computer (COMPUTER), characterized in that, in order to increase speed, reduce metering errors -g and simplify, it contains a pulse generator, a binary counter (decrypt - Rator, amplifier, switch, pulse shaper, multiplexer. nineteen, the memory block, AND, AND-NOT and delays, cyclic code converter Gre to binary code and selector, pulse generator through serially connected binary counter, decoder and amplifier are connected to the control input of the switch, the information inputs of which are connected to the corresponding mass sensors, and the output is connected to the data input of the memory unit, the generator output is also connected via a sequence. a pulse generator and an I element to the first input of the multiplexer address selection, the second input of which address selection is connected to the second input of the AND element, the output of the NAND element and the memory control read input of the multiplexer, is connected to the memory input address of the memory block, and its address inputs are connected respectively to the output of the binary counter and the address bus of the computer interface, the read control bus of which is connected to the first input of the NAND element, the address bus of the computer interface is also connected to the address the selector input, whose information input is connected to the output of the AND element and the memory control input of the memory block, the output of the selector is connected to the second input of the NAND element and is connected to the readiness bus of the computer interface via the delay element, the output of the memory block through the cyclic code converter Gre in binary code is connected to the data bus interface of the computer.