SU1545203A1 - Device for shaping signals for photographic-type punched-tape readers - Google Patents

Abstract

The invention relates to automation and computer technology, in particular, to devices for inputting information into CNC devices from a perforated tape with code holes. The purpose of the invention is to ensure the correct reading of information in case of arbitrary installation of a punched tape. This is achieved by the fact that a signal shaping device, consisting of a nine-channel radiating head 1, is optically coupled to a nine-channel photo-reading sensor 2, the outputs of which are connected to the inputs of the block 3 of the nine reading amplifiers and to the inputs of the output block 12 inverters, additionally introduced elements 2I-OR-NOT 4-11, formers 16, 17 pulses from the potential drop, RS-triggers 13, 14, 15. 4 Il.

Description

in the formation of signals consisting of nine-channel emitting head 1, which is optically coupled to a nine-channel photo-reading sensor 2, the outputs of which are connected to the inputs of block 3 of nine reading amplifiers and g disconnects of the inertial inertial block, In addition, elements 211- OR-NOT 4-M, formers 16, 17 pulses m of potential drop, RS-triggers 13, 14, 15. 4 ill.

The invention relates to automation and computer technology, in particular, to information input devices in numerical control devices from a perforated tape with code holes.

The aim of the invention is to ensure the correct reading of information in case of arbitrary installation of punched tapes:.

On fnig.1 shows the device; 2 is a read amplifier circuit; FIG. 3 shows the relative position of the punched tape and the Aero-readable sensors with the correct location of the punched tape; figure 4 - the same, with its inverse arrangement.

The device consists of nine tic-plated radiating heads 1, a photo-reading nine-channel sensor 2, a block 3 of nine read amplifiers, eight elements 2I-OR-4-11, an output unit 12 of inverters (of nine inertors) g three RS triggers 13-15 and two drivers 16 and I7. Pulses from potential drops, input circuits 18-26, transistor 27, inverter 28, resistor 29, capacitor 30 and feedback resistor 31, inverter 32.

The device works as follows.

In the initial state, a punched tape is installed between the radiating head and the photo-reading Sensor 2, two situations are possible: the punched tape is installed with the normal relative positioning of the information tracks and the sensor channels (Fig. 3) or with their inverse mutual arrangement (Fig. 4).

Before the transportation of the punched tape begins, the RS-Trngers 13 and 15 are reset to the initial state R, the initial state of the trigger 14 does not matter.

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The initial section of the punched tape has a lining only on a gyrostrip (fig. 3 and 3), therefore, after the start of transportation of the punched tape, signals will first be generated only on the fourth channel with a direct arrangement of the punched tape (fig. 3) and along the sixth channel with an inverse arrangement of the punched tape ( 4). When the punched tape is directly positioned, the signal from the output of sensor 2 (Fig. 1) is fed to the input of amplifier 3 of the readout and from its output through circuit 21 goes to S-trigger trigger 13. Trigger 13 goes to state S, and driver 16 generates from a differential Potential zero is a pulse unit, which, arriving at the input of the trigger 14, sets it to state S, which is a sign of the direct location of the tape. When the punched tape is inversely arranged in GOSTPCHNNR S, a trigger 15 is installed along circuit 23, and the potential generator 17 produces a pulse from the potential drop, which, having entered the trigger input 14 at R, sets it to state R, which is a sign of inverse punched tape. The signals from the output of the trigger 14 control the decoder implemented on the elements 2I-ILT1-NOT 4-1.

In this case, in accordance with FIG. 1, when the state S of the trigger 14 is transmitted to the device output, the following signals are transmitted through the block 12 of inverters: the output of the first track is the signal of circuit 18, the second - circuit 19, teethen - circuit 20, the fourth - circuit 22, p circuit 23, the sixth circuit 24, the seventh circuit 25, the eighth circuit 26, and the output of the synchrodistp circuit 21, When the R state of the trigger 14 is respectively transmitted signals: the output of the first track is the circuit 26, the second circuit 25, the third is chain 24, the fourth is chain

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22, mnty - chains, nif-thats - chains 20, the seventh - depp 19, pop, mo - Chr-mon 18, and on RSPHO nnhrodorozhk - chains 2). Tlkmm rewrite, meeozavisimo on direct pfm inverse s t-pnkknk nerfopenty provided reading information corresponding to the real perm the location of tracks punched tape and channels of the sensor 2.

The read / read circuit (Fig. 2) operates as follows.

If the path of head 1 (fng. 1) and photo-reading sensor 2 is located on a channel and punched tape along a channel, then the sensitive element of sensor 2 also has a negative polarity 1DC that is connected to the emitter of the retistor 27 (fig. 2) and, g-lol, at the same time, the signal is unified at the inverter 28 gighod. There are no probe probes, the transistor 27 is open, because the modular resistor 29 is connected to the power supply circuit. Rechnostor 31 feedback stabilizes the operation of the amplifier. , and the capacitor 30 prevents high frequencies. tnye fluctuations.

F o rumula and s o b r e s s n and l

A signal shaping device for photo-reading devices with punched tapes, containing a nine-channel emitting head optically conjugated to a nine-channel Lotus-clamp sensor, the outputs of which are connected to the input of the respective read amplifiers, and an output-unit of inverters whose outputs are outputs of the device The first input of the output unit of the inverters is connected to the output of the first read amplifier, characterized in that, with a circuit for improving the accuracy by ensuring the correctness of the reading In case of arbitrary installation of a punched tape, the device contains eight 2H-OR-NOT elements, three RS-triters and two pulse drivers, and the output of the second read amplifier is connected to the first inputs of the first elements AND of the first H of the second elements 2H - IL11-IE, output the third is about the read amplifier

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connected according to (1 pnppo with the first fruits of the first and third and fourth electrons (cIs 2I - ICHM-MG, n at four amplifiers counted - JMHH4 is connected with 1 directly to the pgr-p-n-n inputs and pesyugo tribalist I-ICHI-IC, the output of the program has calculated the SURRAYS JQ is connected respectively to the first part of the first elements of the seventh and eighth students and the second and the first HS-triggers, output six Amplifier Reader Connection 5 I OHf, respectively, with the first inputs of the burst and BTopoio chips And the seventh and eighth (1 timentov 2 I-OR-IE p with BTopoin RS-trigger flip-flop, pykhod (one reading readout count 0 is connected to the first and second elements, respectively, of the first and second elements, and the eighth pickup reading pin is connected to the first - 5 Bi.iMH inputs of the first and w of the common elements of the fourth and third elements of 211 -PPP-NG, RYHOD of the ninth uspneptep of the bridge and connected respectively with the first inputs of the first 0 and second elements P of the second and

first chemenyuv 2M-I 1I-NR, while the outputs of the phase 2P-IPI-NOT of the first, third and p of the-elements 2I-IPI-HF, respectively, with. the second,, third and fourth inputs of the output unit of the inverters, and the inputs from the fifth to the ninth block are connected respectively to the outputs of the seventh, sixth), and the second, 0, and the eighth, of the 2I-OR-NO

respectively, the second inputs of the first elements II of all 2H-OR-NG elements are interconnected and connected to the S-in of the third RS- from a trigger, the R-output of which is connected to the second inputs of the second groups AND of all elements 2I-IPI-NG, a The S and R inputs of the third trip-r are connected to the outputs of the first and second Q drivers of the NMMP, respectively, and the inputs of the sig- nal hexagon pulse are connected to the S-outputs of the first and second RS-flip-flops, the R-drives of which are interconnected and connected to the channel initial set and device.

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Claims (2)

SUMMARY OF THE INVENTION A signal generating device for photosensitive devices with a punched tape containing a nine-channel emitting head optically coupled to a nine-channel photosensitive sensor, the outputs of which are connected to the input ™ of the respective read amplifiers, and the output, output unit of inverters, the outputs of which are the outputs of the device, the first input of the output the inverter unit is connected to the output of the first readout amplifier, characterized in that, with a circuit to improve accuracy by ensuring the correct count of information flow during arbitrary installation of a punched tape, the device contains eight 2I-OR-NOT elements, three RS-flip-flops and two pulse shapers, and the output of the second readout amplifier is connected to the first inputs of the first elements AND of the first and second elements 2I — OR — NOT, the output of the third amplifier. readings 3 4 is connected respectively with the first inputs of the first elements And the third and fourth elements 2I-2IL11-IE, the output of the fourth amplifier is counted. Denmark is connected respectively with the first inputs of the first elements And the fifth and sixth elements 2I-I.PI-NOT, the output of the fifth amplifier the readout is connected respectively to the first inputs of the first elements AND of the seventh and eighth elements 2I-OR-S and By the S-input of the first RS-trigger, the output of the sixth readout amplifier is connected 'respectively !!' · 'to the first inputs' of the first and second elements AND of the seventh and eighth elements 2I-OR-NOT and with the S-input of the second RS-trigger, the output of the seventh a read amplifier is connected respectively. the first inputs of the first and second elements II of the sixth and fifth elements 2I-ILIPE, the output of the eighth reading amplifier is connected respectively to the first inputs of the first and second elements of the fourth and third elements 2I-OR-11E, the output of the ninth reading amplifier is connected respectively to the first inputs of the first and the second AND elements of the second and first elements 2I-OR-NOT, while the outputs of the element 211-OR-NOT of the first, third and fifth elements 2I-IPINE are connected respectively to the second, third and fourth inputs of the output block inv rotors, and the inputs from the fifth to the ninth of this unit are connected respectively to the outputs of the seventh, sixth, fourth, second and eighth elements 2I-OR-NOT, respectively,> the second inputs of the first elements AND of all elements 2I-OR-II are interconnected and connected to the S-output of the third RS flip-flop, the R-output of which is connected to the second inputs of the second AND groups of all 2I-OR-NOT elements, and the S and R inputs of the third trigger are connected respectively to the outputs of the first and second pulse shapers, and the pulse shaper inputs are connected S-vyhodlm to first and second RS-flip-flops, R-inputs of which are interconnected and connected to the channel initial installation. e ^ o-s o— ' ...... about o about o— - “- ι —ea --- 1 —- EE 1 a <ryt> _a --- EE --.--- E3 ------ EE ---- EE- »lj i Direction of direction of paper tape {I H track. 2nd track 8th track Synchrock II-lane 5'th lane b'l lane. 7th track 8th track