SU1269258A1 - Optronic pulse counter - Google Patents

Description

The invention relates to a pulse technique and can be used in various systems of discrete automation. The aim of the invention is to increase the reliability of operation by eliminating the possibility of simultaneously exciting several neighboring bits, as well as expanding the field of application by allowing the device to be reset to the initial state without turning off the power and using the device in multi-digit counters by introducing outputs loan and transfer. The drawing shows a schematic diagram of the device. The device contains counting trigger 1, buses 2 and 3 odd and even pulses, switch A of reverse, bus 5 and 6 of forward and reverse counting, node 7 of resetting, counting cells 8.1, 8.2 ... 8 (n 1), 8p, the first inputs of 9 odd cells 8.1, 8.3 ... 8 (n - 1), the first inputs of 10 even cells 8.2 ... 8.P, the second inputs 11 and 12 of odd and even counted cells 8.1, 8.3. ..8 x (n - 1) and 8.2 ... 8.P, respectively, the third inputs 13 and 14 of the odd and even counted cells 8.1 ... 8. (n - 1) and 8.2l..8. And the first and second outputs 15 and 16 of the switch 4 reverse, the first and second inputs 17 and 18 switch reverse 4, the first and second inputs 19-20 of the initial setting node 7, the counting inputs 2 1 and 22 of the initial state of the counting trigger 1, the bus 23 of the counting pulses, the first LEDs 24, the second LEDs 25, photodinist 26 and indicator light guides 27 counting cells 8.1 8.2 ... 8. (n - 1), 8p, output 28 of node 7 of resetting, first and second elements NANDA 29 and 30, direct code 31, inverse output 32 of the counting trigger 1, first, second inputs and output 33, 34 and 35 of the first element AND-HEN 29, the first, second inputs and the output 36, 37 and 38 of the second element NAND-30, the initial setting bus 39, and the reverse control cable 40. The light-emitting diode 41 and the first additional resistor 42 enter the initial state in the node 7 of the installation, in addition, the device contains a output 43 of the output, a transfer output 44, a resistor 45, and the reverse switch 4 can have the first and second phototransistors 46 and 47, inverter 48, second and third additional resistors 49 and 50, first and second additional LEDs 51 and 52, power bus 53, common bus 54. According to the drawing in an optoelectronic pulse counter containing counting trigger 1, bus 2 and 3 are odd and even pulses, switch 4 reverse, tires s 5 and 6 direct and reverse counting, node T of the installation in the Initial state and. counting cells 8.1, 8.2 .., 8. (n - 1) and 8.n, in which the first inputs of 9 odd counting cells are connected to the bus 3 counting pulses, the first inputs of 10-digit counting cells are connected to the bus 2 odd pulses, the second inputs 11 and 12 of odd and even counting cells 8.1, 8.3 ... 8. (n - 1) and 8 .2.,. 8.п are respectively connected to the direct account bus 5, third inputs 13 and 14 of odd and even counting t cells 8.1, - 8.3 ... 8. (n - 1) and 8.2 ... 8.P are connected to the countdown bus 6, buses 5 and 6 of the forward and backward counting are connected respectively to the first and second inputs 15 and 16 switch 4 reverse lane The first input 17 of which, via a resistor 45, is connected to the power supply bus 53, to which the first input 19 of the installation unit 7 is reset, the counting input 21 of the counting trigger 1 is connected to the counting pulse bus 23, in each counting cell the second and third inputs 11 and 13 (in odd counting cells 8.1..8. (N-1) 14 (in even counting cells 8.2 ... 8.p) through the first and second LEDs 24 and 25 are connected to the anode of the photodinister 26, the cathode of which is connected to the first input 9 (in the odd countable cells 8.1 ... 8. (p-1) and 10 (in the even countable cells 8.2 ... 8. p)), the counting cells are connected each other in a circular pattern, so that the first LED 24 is optically coupled to the photodinistor 26 of the next counting cell, the second LED 25 is connected to the photodinistor 26 of the previous counting cell, the output 28 of the installation unit is reset to the photodinistor of the first counting cell 8.1 , the first and second 3 elements AND-NOT 29 and 30 are entered, the control bus 40 is reversed, the setup bus 39 is reset, the inverted output 32 of the counting trigger 1 is connected to the first input 33 of the first element AND-NOT 39, direct output 31 - to the first input 36 of the second element and NAND 3, output 35 of the first element NAND 29 is connected to the bus 3 even-numbered pulses 38 of the second element NAND 30 is connected to the bus 2 odd-numbered pulses, the reset bus 39 is connected to the second inputs 34, and 36 of the first and the second elements AND-NOT 29 and 30, to the installation input 22 of the initial state of the counting trigger 1 and the second input 20 of the installation node to the initial state, in which between the second and first inputs 19 and 20 are connected in series the first additional a resistor 42 and a light-emitting diode 41 which is optically coupled to a 28-knot output 7 is reset, the second input 18 of the switch 4 of the reverse is connected to the reverse control bus 40, and the indication indicator is turned on in the output circuit of the photodinistor 26 of each counting cell 8; 1 8.2 ... 8. (n-1) 8.P. LED 27, the output of the second LED 25 of the first counting cell 8.1 is associated with the additional output of the first counting cell, which is the output 43 of the borrowing, the output of the first LED 24 of the last counting cell 8.n is optically connected with the additional pixel of the last cell 8.n Which is with the output 44 of the transfer device. In addition, in switch 4 of the reverse, the first input 17 can be plugged into the collectors of the first and second phototransistor 46 and 47, emmy; the terrains of which are connected respectively to the first and second outputs 15 and 16 of the switch 4 of the reverse, the second input 18 of the switch 4 of the reverse is connected through the inverter 48, the second additional resistor 49 and the first additional LED to the common bus 54, which through the third additional resistor 50 and the second additional LED 52 are connected to the second input 18 of the reverse switch 4, the first additional light Then the diode 51 is optically coupled to the first photoresistor 47, the second additional LED 42 is optically coupled to the second phototransistor 47. 58 The device operates as follows. At the initial moment of time, a zero potential impulse arrives at bus 39, a positive potential is established on buses 2 and 3, and all excited photodinistors go out, trigger 1 is set to one, and photodinistor 26 of the first cell 8.1 is prepared for excitation, because the LED 41 emits light. At the end of the set-up pulse, a zero potential appears on bus 3 and the photodinistor 26 of the first cell 8.1 is energized. Thus, the initial state of the device is established. Depending on whether the potential is positive or zero, goes to bus 40, a positive potential is present on buses 16 or 15, respectively, which determines the counter or direct counting of the counter. If the bus 40 receives a zero potential, the LED 51 is excited and through the phototransistor 46 is positive the potential flows from the power bus 43 to the 5 direct counting bus, i.e. on the anodes of the first LEDs 27, all cells 8.1, 8.2, 8.p. Thus, the LED 24, the LED 27 and the photodinistor 26 of the first cell 8.1 are excited. The LED 24, emitting light, prepares a photodinistor 26 of the second cell 8.2 for excitation. With the arrival of the first counting pulse on the bus 23 counting pulses, the trigger 1 changes its state, a positive potential appears on the bus 3 even pulses, and a zero potential appears on the bus 2 odd pulses, the photodinistor 26 of the second cell 8.2 becomes idle, and the photodinistor 26 first cell quits. With the arrival of the next pulse to the bus 23 of the counting pulses, trigger 1 changes its state and on tires 3 and 2 the potential changes to the opposite. The photodinistor 26 of the next cell is energized, and the photodinistor of the previous cell is quenched. sequential excitation of photodiniters of cells occurs with the arrival of pulses on an inu 23 counting pulses. And if t pulses have arrived, then the otodinistor (t + 1) -th countable one will excite.

And if a potential potential is fed to bus 40, light diode 52 is energized and the positive potential from the power bus 53 is fed to the counting bus 6, and zero potential appears on the direct count pin 5. Thus, the optical communication of the zy-diode 25 of the next cell with the photodinistor 26 of the previous cell determines the countdown.

The presence of the installation bus 38 allows the device to be reset and set to the initial state without shutting down - turning on the power; the possibility of organizing loan and transfer signals allows the construction of multi-digit counters in forward and reverse counts. The display of each cell allows the use of this counter when building clocks and scales in measuring instruments.

This reverse control organization allows the account to be changed in one direction or another, without affecting the state of the counter at the moment the counting direction is changed. In this way, it extends the scope and functionality

Formulas

and 3 about b and e and

An optoelectronic pulse counter containing a counting trigger, an even-even and even pulse bus, a reverse switch, forward and reverse counting buses, a reset unit and counting cells in which the first inputs of the odd-counting 40 cells are connected to the even pulse bus , the first inputs of even counting cells are connected to iiiinie of odd pulses, the second inputs of all counting cells are connected to the direct account bus, the third inputs of all counting cells; the cells are connected to the counting bus, the direct and other counting buses are connected respectively to the first and second outputs of the reverser switch, the first 50 input of which through a resistor is connected to the power bus 5, to which the first input of the installation node is reset, the counting input the counting trigger is connected to the counting bus 55 of the pulses. In each counting cell, the second and third inputs through the first and second LEDs are connected to the anode of the photodinistor, whose cathode is connected to the first input of the counting cell, the counting cells are connected each other in a ring arrangement so that the first LED is optically coupled to the photodinistor followed by it, the second LED with the photodinistor of the previous cell, the output of the installation unit to the initial state is optically connected to the photodinistor of the first counting cell, characterized in that In order to increase the reliability of operation and expansion of the field of application, the first and second AND elements are introduced into it - NOT, the reverse control bus, the installation bus to its initial state, the inverse output of the counting trigger is connected to the first input the first; | element is NOT, the direct output is to the first input of the second element IS-NOT, the output of the first element IS is NOT connected; () is connected to the bus of even pulses, the output of the second element AND is NOT connected to the bus of odd pulses The set-up reset switch is connected to the second inputs of the first and second NAND elements, to the reset input of the counting trigger, and to the second input of the installation node to the initial state, il which between the second and first inputs are connected in series the first additional elements resistor and led which optically connected with the output of the installation unit to the initial state, the second input of the reverse switch is connected to the reverse control bus, and the indicator LED is connected to the output circuit of the photodinistor of each counting cell, the output of the second svtodiod of the first counting cell is optically connected which is the loan output, the output of the first LED of the last counting cell is optically coupled with the additional output of the last cell, which. is the transfer output of the device, in the reverse switch the first input is connected to the collectors of the first and second transistors, the emitters of which are connected respectively to the first and second outputs of the reverse switch, the second reversal input of the reverse is connected via an inverter, the second additional voltage 712692588

the first and additional light of the reverse, the first additional diode to the common bus which is optically connected to the first third additional resistor and phototransistor through the LED, the second additional second additional LED is connected to the second input of the switch s the second phototransistor.

Claims (1)

Claim An optoelectronic pulse counter containing a counting trigger, odd-even and even-pulse busbars, a reverse switch, forward and reverse-counting buses, a reset unit and counting cells in which the first inputs of the odd-numbered counting 40 cells are connected to the even-pulse bus, the first inputs of even counting cells are connected to the bus of odd pulses, the second inputs of all counting cells are connected to the bus of direct counting, the third inputs of all counting cells are connected to the bus of counting down, the direct and counting buses are connected from responsibly to the first and second outputs of the reverse switch, the first input of which through a resistor is connected to the power bus, to which the first input of the installation unit is connected to the initial state, the counting input of the counting trigger is connected to the bus of counting pulses, in each counting cell the second and third inputs through the first and the second LEDs are connected to the anode of the photodinistor, the cathode of which is connected to the first input of the counting cell, the counting cells are interconnected in a ring circuit, so that the first LED is optically connected to the photodinis Hur next cell, the second LED fotodinistorom with the previous cell, set node output the initial state is optically coupled with the first counting cell fotodinistorom, _r characterized in that, in order to increase the reliability of operation and expansion applications, the first and second elements are introduced into it I- NOT, reverse control bus, initialization bus, inverse output of the counting trigger is connected to the first input of the first AND-NOT element, direct output to the first input of the second AND-NOT element, the output of the first the NAND element is connected to the even-pulse train, the output of the second NAND gate is connected to the odd-pulse bus, the initialization bus is connected to the second inputs of the first and second NAND NOT elements, to the initial input of the counting trigger and to the second the input of the installation node to its initial state, b ^! which between the second and first inputs includes a series-connected first additional resistor and an LED that is optically connected to the output of the installation unit · in the initial state, the second input of the reverse switch is connected to the reverse control bus, and the indicator LED is connected to the output circuit of the photo-dinistor of each counting cell, output the second LED of the first counting cell is optically connected to the additional output of the first counting cell, which is the output of the loan, the output of the first LED of the last counting cell is optically connected to the additional output of the last cell, which 50 is the transfer output of the device, in the reverse switch, the first input is connected to the collectors of the first and second phototransistors, the emitters of which are connected, respectively, 5S to the first and second outputs of the reverse switch, the second input of the reverse switch is connected through an inverter, the second additional rubber 7 1269258 8 sides and the first additional LED is connected to the common bus, which is connected through the third additional resistor and the second additional LED to the second input of the 5-reverse switch, the first additional LED the diode is optically coupled to the first phototransistor, the second additional LED is optically coupled to the second phototransistor.