SU1354179A1 - Metering information input device - Google Patents

Abstract

The invention relates to automation and computing and can be used to collect information in automated information and measurement systems. The purpose of the invention is to increase the reliability of the device by registering specially formed verification codes and expanding the field of application of the device by ensuring the possibility of long-term storage and re-entering measurement results. The device contains a pulse generator 1, a counter 2, a decoder 3, a switch 4, two memory unit 5, 6, mode switch 7, comparison unit 8, multiplexer 9, magnetic recording / reproducing unit 10, demultiplexing unit 11, interface unit 12, demodulator 13, buffer registration p 14, shift register 15, and delay element 19. Information input to switch 4 inputs in a sequential code is recorded on a magnetic tape in block 10 and in the first memory block 5. Comparison block I compares the information recorded in block 5, with information read from a magnetic tape. According to the results of the comparison, control codes are formed, which are entered into the second memory block 6 and recorded on the magnetic tape service track by the block 10. The interface unit 12 converts the serial information codes into parallel and provides the information recorded on the magnetic tape of the computer, 3 3.p . f-ly, 6 ill. (L from 00 ate

Description

V1

The invention relates to automation and computing and can be used to enter information in automated information and measurement systems.

The purpose of the invention is to increase the reliability of the device by registering specially formed check codes and expanding the field of application of the device by providing the possibility of long-term storage and re-entry of measurement results.

FIG. shows the functional diagram of the device; Fig. 2 is a block diagram of an interface block; FIG. 3 is a block diagram of a mode switch; FIG. A is a block diagram of a de-multiplexing block; FIG. 3 shows a format for recording information on a tape of a magnetic recording-reproducing unit; on fig - the format of the information on the outputs of the device.

The device contains a pulse generator 1, a counter 2, a decoder 3, a switch 4, a first 5 and a second 6 memory blocks, a mode switch 7, a comparison block 8, a multiplexer 9, a magnetic recording-reproducing block 10, a demultiplexing block 1 TII p block 1 2 mates, demodulator 13 buffer register M, shift register 15, information inputs 16 and device outputs 17, device address inputs 18, delay element 19. The interface block contains a converter of 20 codes (from a serial code to a paraleller) 5 multiplexer 2Ij register 22, node 23 comparing the transfer mode converter contains the first 24 and second 25 even ones), the element IS 27, trigger 28, The demultilexing unit contains the first 29 and second 30 shift registers, four elements 31-34, trigger 35., the first 36 and second 37 counters, the first 38 and second 39 buffer registers, the single vibrator 40, the delay element 41.

The device works as follows.

Information 5 coming from the sensors is recorded, on a magnetic tape, of block 10, which performs the functions of an insurer buffer. To increase the reliability of the entered information, the control of the recording information on the magnetic tape was used.

792

with the recording of control results on the same recording medium, which allows one to detect and filter the distorted information during processing in a computer. The recording control consists in the comparison of codes read from magnetic media with codes recorded at the stage of writing to memory 5 from the outputs of switch 4. Input information from the output of discrete sensors goes to inputs 16. Each sensor corresponds to its own 16 bus which in the device receives serial codes from the sensors, the sensors are combined into groups with the same number. Information from a group of sensors is recorded on one working path of block 10. Sequential codes are switched by block 4 with a constant time offset relative to each other, and the sensor codes, having 11 D1e identical numbers in the groups, are connected by the switch to the first group of inputs of multiplexer 9 synchronously. The specified order of switching provides the space-time separation of the channels and the required data format on magnetic media, Combiator 4 is controlled by the decoder 3, the inputs of which are fed from the output of counter 2, Counter 2 in a cyclic mode counts the pulses from generator 1 The output codes of counter 2 are the write codes dp of the first memory block 5 and the readable address codes for the second memory block 6,

The result of the {1 single polling cycle of all sensors, supplemented by auxiliary information, is a frame o. As auxiliary information, the frame start marker and frame number are used, which is generated at the high-order outputs of counter 2 and recorded on a magnetic tape as a frame position indicator magnetic recording media between the recording and playback hopka,

The size and conversion factor of counter 2 must be sufficient to unambiguously indicate the position of the information on the magnetic tape section, from the recording heads to the playback heads. The upper bits of the counter 2 are also used dp form 31

The frame numbers are fed to the outputs of the block, the other bits are for controlling block 9 and are connected to the control inputs A. The bits used for controlling the discharge of counter 2 are determined by the number of channels grouped into the frame and the frame number resolution

Tape mark, frame number and sensor information are recorded on the tape. Sensor information codes are located on each track of the magnetic tape in order of increasing channel numbers (sensors). For the case of byte recording of information on the nine-donor magnetic recording-reproducing unit 10, the recording format is shown in FIG. 5. The frame number, the position of the code on the track in the frame, and the track number of the magnetic tape uniquely identify the code of each sensor taking into account its position on the magnetic tape,

Upon completion of the recording, the frame number of the counter 2 bits connected to the inputs A of block 9 is changed, and multiplexer 9 connects the outputs of the switch 4 to the work track recording inputs via inputs X and the output of block 6 via input Y to the service track recording input, A combination prohibited for sensor codes and frame numbers is used as a marker. Since the information is read from a magnetic tape in the same sequence in which the sensor number on each track of the magnetic tape arrived at the recording is determined by simply counting the successive information codes in block 11,

Simultaneously with recording on the tape of block 10, the output codes of the sensors are recorded in block 5, the information capacity of which ensures the storage of codes recorded in the section of the magnetic tape from the magnetic recording heads to the playback heads.

The information reproduced from the magnetic tape is fed through the demodulator 13 into the block 11. demultiplexing. The demodulator 13 selects from the reproduced signals a sequence of pulses a clock frequency and binary serial codes from each track of the magnetic tape, From the output of the demodulator corresponding to

791

One of the working tracks of the magnetic tape, for example, the first one, information is fed to the information input V of the shift register 29, to the input C of which the clock pulses arrive. The register width is equal to the sensor code width. As soon as the code combination corresponding to the frame start marker appears in register 29, a single signal will appear at the output of element 31, which will allow the clock pulse to pass through the 32 and trigger switch 35 in-. allowing the passage of pulses of the clock frequency to the input C of the shift register 30, the information input of which is connected through the demodulator to the output of one of the working tracks of the magnetic tape, register 30 registers with the code combination Qi frame number, read from the tape directly after the marker.

Simultaneously with the installation of the trigger 35 in the single state, the same signal from the output And 3.2 sets the initial state of the counters 36 and 37 used respectively to count the bits in the sensor code and channel numbers. At each overflow of the counter 36 bit numbers, a one-shot 40 is started, at the output of which a signal of the end-of-code feature is generated. After setting the counters 37 and 36 to the initial state, the first signal of the end of the channel will reset the trigger 35 to the zero state, prohibiting the passage of the clock frequency through AND 34 and allowing the clock pulses to pass through And 33 to the clock input of the register 38,

In register 30, the number of the frame reproduced from the magnetic tape is recorded, and in register 38 the bits of information codes from working tracks, t, e, and sensor codes are entered. Each impulse sign of the end of the code from the output of the one-shot 40 increments the code of the counter 37 of the channel numbers by one, and the pre-pre-channel number is rewritten to the register 39 on the third outputs of block I1, the address of the reproduced codes is used, which is used to read information from block 5 frame numbers, channel numbers and number. Size in code. On

513

The second outputs of block 11 form the write address code for block 6, which differs from the code on the third outputs in that the number of the canap in it is one less than the currently played time from the magnetic tape. The first outputs of the block 11 contain information codes reproduced from the magnetic tape , in the serial binary code for each track of the tape. The number of lines on this bus is equal to the number of tape tracks. At the second output of the block 1 1, the signal of the sign of the end of the code is output, at the first output - the clock frequency pulses, which are formed during the reproduction of the sensor codes.

Block 8 compares the codes reproduced from the magnetic tape and the corresponding codes read from block 5 at the address formed in block 11. The output pin of block 8 has the number of lines equal to the number of working tracks of the magnetic tape. With the coincidence of the codes at the inputs of block 8, at its outputs there are zero signals with a mismatch - single ones. The discrepancy of at least one bit in the compared codes leads to the fact that one is recorded in the corresponding bit of register 14. In order to eliminate false alarms of the register at the moment of switching the bits, recording information on the inputs of register 4 gates with clock pulses from block 11e. After checking each sensor code reproduced from a magnetic tape, the control results are copied from the outputs of register 14 to the shift register 15 by an end sign signal The code from block P, On this same signal, delayed by element 19 for a time sufficient to overwrite information in register 15, bits of register 14e are wrapped. Check codes from the output of the shift register. 15 is recorded in block 6 during the check of the next channel under the influence of clock pulses from block 115 supplied to the shift input C1 register 15, due to the fact that the address of the record in block 6 is the channel number

lagging behind the reproduced one, the verification code is written to its address, i.e., to the address with the number of channels to which it belongs.

five

5 oh .. 0 g „

five

796

Since the processes of recording and reproducing information from a magnetic tape are not synchronized with each other, the processes of recording and reading from blocks 5 and 6 are not synchronized, in order to eliminate the failures that may occur during the simultaneous arrival of write and read clock pulses A switch of 7 read / write modes of the storage units is used. The single-oscillators 24 and 25 form short pulses sufficient for reliable writing-reading from the storage blocks, and the pulse duration of the single-vibrator 25 should be 1.5–2 times longer than the pulse duration of the single-vibrator 24 ". If the write clock from the generator 1 and the playback clock pulses from block 11 do not arrive simultaneously, then they set trigger 28 to the single and zero states, respectively, thus equalizing the write-read mode of blocks 5 and 6. If the pulses arrive simultaneously, then out de element SPARE SHOWER OR 26, a zero signal is generated that prohibits the vehicle from passing through, not the write clock pulse through. And 27 to the reset input of the trigger 28, the trigger is set to one, providing the read mode for unit 5 and the write mode for unit 6 At the end of the write pulse, a single signal appears at the output of element 26, allowing the output pulse of the one-shot 25 to pass through the element 27 to the reset input of the trigger 28, and the trigger is set to the zero state, keeping a sharp record for block 5 and R a read unit 6 for bench.

The result of the comparison of information codes is the formation of verification codes containing information about the correctness of the magnetic recording, each verification code containing information about the correctness of the recording of sensor codes with the same numbers. on all work paths. If codes. recorded without errors, then the bits of the verification code are zero5; if any sensor code is recorded with an error, then there is a difference in the corresponding digit of the verification code. The recording format on the magnetic tape of the nine-slot magnetic magnet recording unit 10 is shown in FIG. Output sensor codes are recorded on eight working tracks of the magnetic tape in eight-bit binary serial code. The check codes are recorded on the ninth special track of the same magnetic tape, and the check bytes are placed on

a tape under the bytes of codes of date orshbki any multiplicity In addition, chikav with the same numbers as those.

The device allows not only entering information into a computer during an experiment, but also accumulating and controlling information under conditions of a full-scale experiment away from a computer and then entering the output sensors recorded on a magnetic tape together with the result. tami control

to which the verification codes refer. In order to combine the information and verification codes, a second memory block 6 is used, in which the results of the verification of the correctness of the record are stored. When recording on the tape of the output codes of the sensors from block 6, the results of monitoring the codes of the sensors with the same numbers are read out and fed to the recording input of the service tape track,

From the output of the magnetic recording unit 10, sequentially read the marker codes of the beginning of the frame and the frame number, which are common to all the tracks of the magnetic tape, sensor codes and check codes. The reproduced information through the demodulator 13 enters the interface unit 12 in parallel with all the tracks of the magnetic tape. The sensor codes and verification codes are converted by the block 20 into a parallel form and byte-by-bit arrive at the first inputs X of the gated multiplexer 21,

Before starting the input, the computer exposes on its output tires 18 the address of the external device with which the information should be exchanged. In register 22: the address code of the information input device is stored as an external computer device. If the address on buses 18 matches the stored data in register 22, then from the output of the comparison node 23 to the gate input of the multiplexer 21. 17 through the second inputs of the multiplexer 21 - the address of the input device information, confirming its readiness to enter. Then, the control inputs A of the multiplexer 21 with a computer are supplied with control signals connecting the inputs X to its outputs, through which the outputs 17 (SHIN-AO-Shint -A7) receive information in accordance with the format shown in FIG. dividing markers, frame numbers, sensor parameters and verification.

 Thus, together with information from signal sources, verification codes are entered into the computer, allowing to make a conclusion about the correctness of each input sensor code, and in contrast to the methods used in the computer for longitudinal and transverse control of information, the device detects

Orshbki any frequency

the device allows not only entering information into the computer during the experiment, but also accumulating and controlling information in the field experiment away from the computer and then entering the output sensors recorded on the magnetic tape into the computer, together with the results of the monitoring,

Claims (1)

Invention Formula 1, A device for inputting measurement information containing a switch, a counter, a decoder, a multiplexer, a buffer register, a delay element, and a pulse generator, the output of which is connected to the input of the counter, the outputs of which are connected to the inputs. the decoder, the outputs of which are connected to the control inputs of the switch, the information inputs of which are information inputs of the device, characterized in that, in order to increase the reliability of the device and expand the scope of application of the device due to the possibility of long-term storage and re-entry of measurement results. 40 The device contains a block of magnetic 45 recording-playback demodulator, demultiplexing unit, interface unit, mode switch, two memory blocks, comparison unit and shift register, the output of which is connected to the information input of the second memory block, the output of which is connected to the information input multiplex-g Pa, the outputs of which are connected to the inputs 5Q of the magnetic recording-playback unit, the outputs of which are connected to the inputs of the demodulator, the outputs of which are connected to the inputs of the demultiplexing unit and information inputs 55 of the interface unit, output s which are data outputs device control inputs of the interface unit are address inputs of the device, the inputs of the decoder obe9 ° 1354179 The input addresses of the first record are connected to the reset inputs of the counting memory block and the addresses of the counters' addresses and the trigger setup input, the second memory block is flushed, the output of which is connected to the second switch is connected to the information input the fourth element And, the external inputs of the first group whose multi-stroke is connected to the input of the synclexer and the information inputs of the synchronization of the second shift register, the first memory block, the outputs of which one of the information inputs of the first one are connected to the inputs of the first group the ppubuffer register is connected to the comparison information block, whose outputs with the co-JQ inputs of the first and second are connected to the information inputs of the bu-shift registers, the inverse output of the ferrous register, whose outputs of the co-trigger are connected to the second input with the information inputs of the re-third element And, the output of which the shift bias, the outputs of the higher bits are connected to the gate input of the permeter, is connected to the informational 15th buffer register and is the input of the second multiplexer group, the first output of the block, stroke overflowing mladishh outputs bits from the counter-Neny first counter coupled to the unified with address inputs of the monostable multi-input, the output of which plexor, demul- first output unit. connected to the reset input of the trigger, typed up is connected to the clock 20 gate input of the second buffer input of the shift register, the gate register, the input of the delay element by the input of the buffer register and the first is the second output of the block, the output of the mode switch, the first pass of the delay element is connected to and the second outputs of which are connected by the input of the second counter, respectively, with the inputs of the record-schi-25, the strokes of which are connected to the information of the first and second blocks by the personal inputs of the second buffer Wow, the second output of the demulti-register unit whose outputs are jointly connected to the installation. with the outputs of the first counter and the second input of the shift register and the input of the electronic shift register form the outputs of the delayed ment, the output of which is the second block of the second group, the outputs of the second Nen s, the reset input of the buffer shift register-register together with the outputs of the ra demultiplexer-first and second counters form neither the first, second and third group of the output of the block of the third group, connected respectively to the inputs the second group of the comparison unit, input-dc h. The device according to n.l, about tl and mi of the write address of the second block is memorized by the fact that the counter block and the input addresses of the primary address contain a code converter, second memory unit, the second one: the switch-multiplexer code, the register and the node of the comparison modes are combined with the input of the input, the output of which is connected to counter, 40 gated multiplexer input, the outputs of which are outputs 2, The device according to claim 1, about tl and -block, the address inputs of the multiplexer it seems that the block is de-combined with the inputs of the first group the multiplexing contains two comparisons and are the control shift histograms, two buffer registers, the block inputs, the transform inputs of the counter, the four elements K ,, are informational trigger, one-shot and element-by-block inputs, converter-hold outputs, outputs of the first buffer are connected to information gist are the outputs of the first group inputs of the first multiplexer group, unit blocks, information inputs of the first register are connected to the inputs the first buffer register, the first inputs of the second group of the comparison node and the second, third and fourth by the electronic inputs of the second group And, the clock input of the primary multiplexer. counter and sync input first, the shift register are the inputs of the block gg 4, the device according to claim 1, 1, and the outputs of the first register are shifted by switching to the inputs of the first mode element that contains two one-way, the output of which is connected to the second screen, the element ACI1CHI1E1EEE OR, elevohd the second element And, the output of the coA ment And and the trigger, direct and inverse the outputs of which are, respectively, the first and second outputs of the switch, the inputs of the first and second monodibres are respectively the first and second inputs of the switch, the output of the first one-vibrator is connected to the input of the trigger setup and the first input of the EXCLUSIVE OR element, the output of which is connected to the first input of the AND element, the output of which is connected to the trigger reset input, the output of the second one-vibrator is connected to the second inputs of the AND elements and EXCLUSIVE OR. FIG. 2 FIG. 3 tires-A 0 tires-A1 Editor V. Danko (Rig.b Compiled by V. Fayzrakhmanov Tehred M. Khodanich Proofreader S. Shekmar Order 5694/43 Circulation 671 Subscription VNIIPI USSR State Committee for inventions and discoveries 513035, Moscow, Zh-35 ,, Raushsk nab ,, d, 4/5 Pronunciation-poly. Raficheskoy enterprise, Uzhgorod, st. Project, 4