SU1201850A1 - Device for automatic checking of parameters - Google Patents

Description

is the first information input of the block, the control input is the first control input of the block, the first, second and third outputs of the fifth switch are connected respectively to the inputs of the first, second and third registers, the output of the first register is connected to the first input of the second adder, the second output of which connected to the output of the second register and the first input of the third adder, the second input of which is connected to the output of the third register, the outputs of the second and third adders - to the information input of the divider controlling the input This is the second control input of the block, the output of the divider is connected to the first information input of the fourth adder, the second information input of which is connected to the output of the fourth register, whose input is the information input of the block, the output of the fourth adder is connected to the information input of the fifth register that controls whose input is the third control input of the block, the output of the fifth register is the output of the block.

01850

3. The device according to claim 1, characterized in that the control unit comprises a control unit, the output of which is connected to the first input of the element I, the second input of which is connected to the output of photo reading readiness, the first outputs of which are connected to the address inputs of the descriptor, the second outputs to information inputs the block of output registers and the block of intermediate registers, the control outputs of which are connected to the corresponding outputs of the descrambler, the triggering photo-reading input - to the output of the OR element, the first input of which is connected To the output of the element And to the trigger input of the timer, the first outputs of which are connected to the control inputs of the sixth and seventh switches, whose information inputs are connected to the corresponding outputs of the intermediate registers block, the outputs of the block of output registers, the sixth and seventh switches and the second outputs of the timer are block outputs. I

The invention relates to instrumentation technology and can be used to control multiparameter objects.

The purpose of the invention is to improve the measurement accuracy.

FIG. 1 shows a block diagram of the device; in fig. 2 shows the computational block electrical diagram; FIG. 3 is a block diagram of the control unit; in fig. 4 - timer circuit diagram; in fig. 5 - time diagram of the timer.

The device comprises a test signal generating unit i, consisting of stimulating signal generators 2, first switch 3, control object 4, second switch 5, n-channel correction block 6, channels 7, first converter 8, multiplication unit 9, first sum- the torus 10, the third switch 11, the second converters 12, the fourth switch 13, the analog-to-digital converter 14, the computing unit 15, the block 16 comparison i - the block 17

memory, display unit 18, control unit 19, control inputs 20-24 of the first through fourth registers, and analog-to-digital conversion, control 25-27, and information

28 inputs of the computing unit, informational 29 and 30 inputs of the memory unit, control 31-33 inputs of the test signal generation unit, fifth switch 34, first 35, second 36, third 37 registers, second 38 and third 39 adders, divider 40, fourth adder 41, quarter 42 and memory 43 registers, remote control 44 controls, 4 I.45 elements,

element OR 46, timer 47, photo reader 48, decoder 49, block 50 output registers, including

registration registers 51-59, block 60 intermediate registers, including registers 61-66, sixth 67 and seventh 68 switches, stand-by multivibrator (not shown), delay elements 69-77, element OR 78.

The device works as follows.

Before the operation of the device, the operator in the photo reader 48 inserts a punched tape with the program of operation of the device, containing, in symbolic form, the addresses of the blocks, the actions indicated by them in the form of control words. When the punched tape is correctly installed, the photo reader 48 generates the Ready signal, which is fed to one of the inputs of the element 45. The operator from the control panel 44 sends the Start command to the second input of the element 45. If there is a ready signal, the Start command passes through the AND 45 element, and then through the OR 46 element on the starting input of the photo reading device 48. At the same time, the Start command is sent to the trigger input of the timer 47. With the arrival of the trigger signal, Photograph 48 begins to read the codes of the addresses of the registers, which are then fed to the decoder 49, and information intended for THESE registers, which goes to the trunk connected to the inputs of registers 51-66. The decoder 49 permits the permission signal to write information from the backbone to the register whose address is stored in the photo reader 48. Thus, the corresponding control word is entered into the registers specifying certain conditions to the units and devices of the system necessary to implement one of the parameters. So, for example, the information recorded in one of the registers 51-53 indicates which of the generators 2 of block 1 will participate in the control of this parameter, what mode of its operation is frequency, duration, amplitude, etc.), control words registered in registers 54-56 form circuits for passing signals through switches 3, 5 and 13, respectively, while monitoring this parameter, and information in registers 61-63 and 64-66 allows to implement the control algorithm by means of

changes according respectively to switch 11 and switch 34 of computing unit 15, the information in registers 58 and 59 determines,

J is the lower and upper bounds of the allowed range of this monitored parameter. The last command on the punched tape is the Stop command, at which the photo reader 48 is installed, and the recording of information in the registers ends there - the circuits and modes for monitoring this parameter are prepared. After that, timer 47,

J5 launched simultaneously with the photo reader 48, with some delay ensuring the accuracy of the end of the information input to the registers, begins to work in accordance with the control algorithm and accounting

The unit control command time is 20, the device control pulses that give permission to pass control words from registers 61-63 and 64-66, respectively, 25 but to outputs 25 and 22 of switches 67 and 68, with the transfer of control words from registers 61 and 64, 62 and 65, 61 and 66 are produced simultaneously. After the implementation of the algorithm

30 control of this parameter, i.e. after a time corresponding to its monitoring time, timer 47 issues a step command, which passes through the OR 46 element and starts a reader 48, thereby starting the preparation of circuits for monitoring the next parameter.

The operation of the device is carried out in three cycles.

0 in accordance with the control words received from block 19, a stimulating signal from the corresponding generator 2 of block 1 is applied to the input of the control object 4.

45, the signal of the control object 4 through the switch 5, the output of which by the control word received at the input 21 is connected to the input of the corresponding channel 7, goes directly

50 to the input of the switch P. Block 69 timer 47, launched at a time

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sufficient for decoding and setting in the blocks of the modes prescribed by them, outputs a signal to the first control input of the switch 68. In this case, the control word from the register 64 enters the output 22 of the block 19 and connects the input of the switch 11 to which it is directly connected the output signal of the control object 4, to the corresponding converter 12. The output signal of the converter 12 through the switch 13, switched by the control word received from the output 23 of unit 19, is fed to the input of the analog digital converter body 14. At time t, block 10 of timer 47 issues a signal to start block 71 and start analog-to-digital converter 14. The time interval is determined by the time it takes to establish converter 12. The output signal from the A / D converter 14 is fed to the input 34 of the unit 15. Output switch 34 at time t, is connected to the input of register 36 by block 63 outputting a signal to the first control input of switch 67 and arriving at output 25 of block 19 of the control word from register 61. The result of the N conversion is stored in register 36. ends the first measure. In the second cycle of operation at time t, block 71 outputs a signal to start block 72 and to the second control inputs of switches 67 and 6 codes. As a result, control words from registers 62 and 64 are received respectively at outputs 25 and 22 of block 19. At the same time, the output of the corresponding converter 12 through the switch 11 receives the output value from block 9 of channel 7 of this converter, to the inputs of which is fed through switch 5 the output value the control object 4 directly and through the converter 8. The output value of the converter 12, having passed through the switch 13, is fed to the input of the ADC 14. At time t, block 72 starts block 73 and gives a signal to start ADC 14. Interval Then, the choice is based on the speed of the converter 2 - at the moment of time t j it should have a steady-state value. The signal from the output of block 14 is fed to the input of block 15 through the switch 34, the output of which is connected by means of a control signal from the output 25 of block 19 to the input register 58-6 pa 35. The result of the conversion Nj. stored in register 35. On the third cycle of system operation at time tj, block 73 issues a signal to start block 74 and to third control inputs of switches 67 and 68. As a result, control words from registers 63 and 66 are fed to outputs 25 and 22, respectively. block 19. At the same time, the output value of the adder 10 is fed to the input of the corresponding converter 12 through the switch 11, controlled by the signal from the output 22 of the block 19, to the inputs of which the control object 4 output directly and through the converter 8 is fed through the switch 5. time t block 74 causes the signal to start block 75 and start ADC 14. The time interval tj-tj is determined by the speed of converter 12. The output value of converter 12 is fed to the input of block 15 and through switch 34, the output of which is controlled by the output from block 25 19 is connected to the input of register 37, is entered into register 37. The result of the conversion Nj is stored in register 37, the results of the conversion N and N obtained in the second and third stages of the system are entered from registers 35 and 37, respectively, to adders 38 and 39, the second inputs of which in the inverse code enter the contents of register 36 ( -N,) The differences thus formed in the adders 38 and 39, and Nj-N, are fed to the inputs of the divider 40. At time t, when differences are formed in blocks 38 and 39, the block 75 outputs a control signal to the divider 40 at output 26, and also starts block 76. The ratio obtained in dividing device 40 (,): (|) is fed to the input of adder 41, the second input of which is entered into a register code 42, inversely proportional to the dividing ratio of the converter, which is written to it from output 27 of block 19 when preparing the device for controlling this parameter from the register 57. The output code of the adder 41 is fed to the register 43, the control input of which, at the time tg, receives a signal from the output 28 of the block 19 connected to the output of the block 74, which also starts the block 77. From the output of the register 43 of the block 15 the received the code enters the input of block 16, the second inputs of which from block 17 receive the lower and upper limit values of the monitored parameter, 1, which were taken from the outputs 29 and 30 of the block | 19 when preparing the device for monitoring this parameter. Output

2018508

the signal from block 16 is fed to the input of block 18. Block 77, at time t, corresponding to the speed of blocks 16 and 18, generates a signal for 5 control through the element OR 46 by the photo-reader 48, indicating the end of the monitoring cycle. The photo reader starts. There is a preparation for the control of the next parameter, similar to that considered.

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Claims (3)

1. DEVICE FOR AUTOMATIC CONTROL OF PARAMETERS, comprising a test signal generation unit, the outputs of which are connected to the information inputs of the first switch, the outputs of which are the output of the device, the input of which is connected to the information input of the second switch, the third switch, the outputs of which are connected through the first converters to the corresponding information inputs the fourth switch connected by the output to the input of the analog-to-digital converter, a comparison unit, the first input of which is connected it is accessible to the output of the memory unit, the output is to the display unit, the control unit, the first outputs of which are connected to the control inputs of the test signal generation unit, the second, third, fourth and fifth outputs to the control inputs of the first, second, third and fourth switches, the sixth output - to the triggering input of an analog-to-digital converter, the seventh and eighth outputs, respectively, to the information inputs of the memory block, characterized in that, in order to increase the accuracy of measurement, a computing unit and multichannel the first correction block, each channel of which contains the first adder, the multiplication unit and the second converter, the input of which is connected to the corresponding output of the second switch β, to the corresponding information input of the third switch, to the first input of the multiplication unit and to the first input of the first adder, the second input which is connected to the output of the second converter and the second input of the multiplication unit, the outputs of the multiplication unit and the first adder are connected to the corresponding inputs of the third switch, the first nformatsionny input computing unit - in a yield of analog-to-digital converter, and the first, second, third control input and the second information computing unit - according to the ninth, tenth, eleventh and twelfth output control unit, the calculating unit output is connected to the second input of the comparator. 2. The device pop. 1, characterized in that the computing unit comprises a fifth switch, the information input of which SU „„ 1201850 is the first information input of the block, the control input is the first control input of the block, the first, second and third outputs of the fifth switch are connected respectively to the inputs of the first, second and third registers, the output of the first register is connected to the first input of the second adder, the second output of which connected to the output of the second register and the first input of the third adder, the second input of which is connected to the output of the third register, the outputs of the second and third adders with the information input of the divider, controlling input for which is the second control input of the block, the output of the divider is connected to the first information input of the fourth adder, the second information input of which is connected to the output of the fourth register, the input of which is the information input of the block, the output of the fourth adder is connected to the information input of the fifth register, the control input of which is the third the control input of the block, the output of the fifth register is the output of the block. 3. The device according to π. 1, characterized in that the control unit comprises a control panel, the output of which is connected to the first input of the And element, the second input of which is connected to the readiness output of the photo reader, the first outputs of which are connected to the address inputs of the decoder, the second outputs to the information inputs of the block of output registers and the block of intermediate registers, the control outputs of which are connected to the corresponding outputs of the decoder, triggering the photosensor input - to the output of the OR element, the first input of which is connected to the output of the AND element and the timer start-up input, the first outputs of which are connected to the control inputs of the sixth and seventh switches, the information inputs of which are connected to the corresponding outputs of the intermediate register block, the outputs of the output register block, the sixth and seventh switches and the second timer outputs are block outputs.