SU1310795A1 - Device for controlling the measuring process - Google Patents

Abstract

The invention relates to computing and can be used in the management of technological processes, in particular in devices for dosing components in discrete and semi-continuous devices. The aim of the invention is to improve the reliability of dosing control by using a block when incorrectly entering a higher-order number. When dialing the dose value code on the keyboard unit 1, the information is encrypted by the encoder 2, the sign impulse is pressed on the Y, Y button through the pulse shaper 3 and the open element NAND 9 arrives at the setup input of the trigger 7, the value zero from the inverse output of the trigger 7 records the first bit of the shift register 5 is alternated with a pulse from the output of the pulse generator 6, the zero appearance at the first output of the shift register 5 switches the trigger 7, and the zero value spreads across the bits of the shift register 5 with the generator pulse 6. So manner, the information is overwritten from the counter 4 predschu- present thereafter until an nth key depression keyboard unit. The appearance in the high-order counter of a dose code of a certain value includes the element OR-NOT 8 and blocks the element NAND. 9. When the number of pulses arriving from the sensor 12 corresponding to the code entered from the keyboard, the counters 4 are zeroed and the executive mechanic control unit is turned off - mom 11. The control of the dose code is carried out using the display unit 10. Gil, (L SAE 10 CO ate

Description

eleven

The invention relates to a measuring technique, can be used in the control of technological processes, in particular in devices for metering components in discrete and semi-continuous devices.

The purpose of the invention is to increase the reliability of dosing control by using a block when erroneously inputting higher-order numbers.

The drawing shows a block diagram of a dispensing control device.

The device for controlling dosing contains a keyboard unit 1, an encoder 2, a pulse shaper 3, counters, a shift register 5, a pulse generator 6, a trigger 7 an OR-NOT 8 element, an AND-9 element, an indication unit 10, an actuator control unit II and sensor 12 flow. The block 1 of the keyboard and the encoder 2 form the unit 13 flow.

The device works as follows.

In the initial state, trigger 7. and

4 set to

counters 4., 4, O.

The operator by pressing the keys of block 1 of the keyboard, sets the consumption rate in the form of a decimal number by a sequential code, starting with the highest digit of the number. When the key is pressed, a signal is fed to the input of the encoder 2, the output of which contains signals in accordance with the code of the digit dialed on the keyboard unit 1, which are fed to the input of counter 4-j.

Simultaneously with the keystroke in block 1 of the keyboard, a keystroke signal is generated, which is fed to the 3 pulse shaper. The output signal of the pulse shaper through the open element AND-HE 9 sets trigger 7 into one state. With the arrival of a clock pulse at the input of the shift register 5 from the generator output 6, the pulses O from the inverse output of the trigger 7 are written into the shift register 5 and appear at the first output of the shift register 5. With this signal, trigger 7 is reset to its initial state, and the value

07952

the contents of counter 4

P - 1

in the counter

4 (high-order counter). With the arrival of the next clock pulse, the signal O appears at the second output of the shift register 5, and the contents of the counter are rewritten into counter 4

P-1

When coming n-th

0

five

0

five

0

five

0

five

0

five

clock pulse recording of information from the block 1 of the keyboard into the counter 4. Similarly, there is the introduction of subsequent pyfr number. The size of the input numbers should not exceed the device’s device size. Thus, when the last digit of the n-bit is entered, the contents of counter 4 become non-zero and the O level appears at the output of the OR-NO element, resulting in blocking the passage of single signals. pulses through the element AND-NOT 9, and, if you mistakenly continue to press the numeric keys of keyboard 1, the previously entered information is not distorted.

Information from the meter outputs goes to the display unit 10 and the control unit 11. To eliminate flicker when entering information, the frequency of the pulse generator b is chosen sufficiently high.

The operator checks on the display unit 10 the correctness of the dialed number and gives the command to activate the actuator. The incoming signals from the output of the flow sensor 12 reduce the contents of the counters and, if they are zero, the actuator control unit 1 generates an actuator off signal.

Thus, refusing to use the traditional shift registers for receiving and storing the entered information and using for this purpose counters, which are an integral part of the proposed dosing control device, make it possible to create a convenient dosing control device (especially with frequent dose rate changes).

In addition, the proposed device is more reliable, since increasing the input numbers it does not increase directly proportional to the number of switches and encoders (which leads to a decrease in the reliability of the device), and provides for blocking when wrong numbers are entered. The device limits the range of possible operator errors and increases the reliability of the device as a whole.

Invention Formula

A batch control device comprising a keyboard unit, an encoder, n counters (where n is the size of the dose value code), a trigger, a display unit, an actuator control unit and a flow sensor, the information output of the keyboard unit connected to the encoder input, the output of which is connected with the information input of the first counter, the overflow output of the i-ro counter (i 1,2, ..., p-1) is connected to the input

synchronization (i + l) -ro of the counter, you- 20 input of the shift register, the outputs discharge of the flow sensor is connected to the synchronization input of the first counter, the outputs of all counters are connected to the corresponding inputs of the display unit

Dov which is connected to the recording resolution inputs of the corresponding counters, the shift register synchronization input is connected to the generator output

and the zero-fixing input of the control-impulse unit, the output of the lower-order discharge by the executive mechanism, which is described in: A. Zorin, the editor A. Editor E. Kopcha, Tekhred I.Popovich Order 1891/44 Circulation 673 Subscription

VNIIPI USSR State Committee

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

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

107954

To increase the reliability of dosing control by using a block when erroneously entering numbers of higher digits, it is entered into it

5 pulse generator register

shift, pulse generator, the element AND-NOT and the element OR-NOT, and the output of the i-ro counter is connected to the information input (i + l) -ro of the counter, the outputs

10 bits of the pth counter are connected to the inputs of an OR-NOT element, the output of which is connected to the first input of the NAND element, the second input of which is connected through a pulse shaper

t5 with the output of the signal of the sign of pressing the key of the keyboard block, the output of the element AND-NOT is connected to the input of the installation in 1 trigger, the inverse output of which is connected to the informational

Dov which is connected to the recording resolution inputs of the corresponding counters, the shift register synchronization input is connected to the generator output

pulses, the output of the lower bit of the shift register is connected to the input of the installation in the trigger O.

Proofreader S. Shekmar

Claims (1)

Claim A dispensing control device comprising a keyboard unit, an encoder, η counters (where η is the 10th order of the dose code), a trigger, an indication unit, an actuator control unit and a flow sensor, the information output of the keyboard unit being connected to input 15 of the encoder, the output of which is connected to the information input of the first counter, the overflow output ϊ-Γο of the counter (i = 1,2, ..., η-1) is connected to the synchronization input (i + I) -ro of the counter, the output 20 of the flow sensor is connected with synchronization input of the first counter, outputs of all counts sensors are connected to the corresponding inputs of the display unit and the zero-fixing input of the control unit 25 by the actuator, which is characterized by the fact that, in order to increase the reliability of dosing control due to the use of blocking when the numbers of higher digits are entered incorrectly, a pulse shaper is introduced into it , shift register, pulse generator, AND element and OR-HE element, the output of the i-ro counter connected to the information input of the (i + l) -ro counter, the bit outputs of the nth counter connected to the inputs of the OR-HE element, exit it is connected to the first input of the AND-NOT element, the second input of which is connected via a pulse former to the output of the signal signal of pressing a key of the keyboard block, the output of the AND-NOT element is connected to the input of the 1 ”trigger, the inverse output of which is connected to the information input of the shift register, the outputs of the bits of which are connected to the recording permission inputs of the corresponding counters, the input of the shift register synchronization is connected to the output of the pulse generator, the low-order output of the shift register is connected to the setup input and 0 "trigger.