SU611240A1

SU611240A1 - Signal transmitter-receiver

Info

Publication number: SU611240A1
Application number: SU752119992A
Authority: SU
Inventors: Идель Самуилович Гурвич
Original assignee: Специальное Конструкторское Бюро Вычислительных Машин
Priority date: 1975-04-02
Filing date: 1975-04-02
Publication date: 1978-06-15

Description

(54) УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА СИГНА.ПОВ(54) DEVICE FOR TRANSFER AND RECEPTION OF SIGNA. POV

1one

Изобретение касаетс передачи сиг налов и может быть .применено дл обме на информацией в автоматизированных, системах управлени .The invention relates to the transmission of signals and can be used for the exchange of information in automated control systems.

Известно устройство дл передачи информации , содгержащее инфррмаци-онные каналы, канал синхронизации, элементьг И и инвертор 13.A device for transmitting information, comprising information channels, a synchronization channel, an AND element and an inverter 13, is known.

Это устройство обладает низкой помехозащищенностью в тех случа х, когда помеха совпадает по пйл рности с информационным сигналом.This device has low noise immunity in cases where the interference is in alignment with the information signal.

Наиболее близким по технической сущности к предложенному вл етс устройство дл передачи и приема сигнапов , содержащее передатчик, информационные выходы которого подключены к Нформационным каналам, и приемник 2|The closest in technical essence to the proposed is a device for transmitting and receiving signal signals, comprising a transmitter, whose information outputs are connected to information channels, and a receiver 2 |

Однако такое устройство имеет недостаточную помехозащищенность при одновременном и одинаковом искажений пр мого и инверсного синхросигналов. ,However, such a device has insufficient noise immunity with simultaneous and identical distortion of the forward and inverse clock signals. ,

Целью изобретени вл етс повышение помехоустойчивости устройства.The aim of the invention is to improve the noise immunity of the device.

Это достигаетс тем, что в првдлагаемо е устройство введены пр мой и ин, версный синхроканалы, элементьг И и полусумг атор , информационные каналы под ключены к первым входам элементов -и, вкходда которых подключены ко аходам This is achieved by introducing direct and in direct devices, advanced sync channels, AND and half summers, information channels connected to the first inputs of the elements —and whose inputs are connected to the device.

приемника, выход которого через канал обратной св зи соединен со входом передатчика , выходы синхронизации передатчика через пр мой и инверсный синхроканалы подключены ко входам полусум1 .5атора, выход которого подключен ко вторым входам элементов И и ко входу синхронизации, приемника, выход пр мого синхроканала соединен с третьими входами элементов И.receiver, the output of which through the feedback channel is connected to the input of the transmitter, the outputs of the transmitter synchronization through the direct and inverse sync channels are connected to the inputs of the half sum 1.5. device, the output of which is connected to the second inputs of the And elements and to the synchronization input of the receiver with the third inputs of elements I.

На чертеже показано предлагаемое устройство.The drawing shows the proposed device.

Устройство содержит аппаратуру передачи данных 1, информационные каналы 2, пр мой синкроканал 3, инверсный синхрока ал 4, полусумматор 5, элементы И 6, передатчик 7, приемник 8, канал обратной св зи 9.The device contains data transmission equipment 1, information channels 2, direct sync channel 3, inverse sync 4, half adder 5, elements AND 6, transmitter 7, receiver 8, feedback channel 9.

Устройство работает следук дим образом .The device works in a dim way.

При отсутствии помехи в -информаци-онных канатах 2 и синхроканалах 3 и 4 на входы полусумматора 5 поступают ранопол рные синхросигналы, которые не мен ют состо ни сигнала (высокого уровн ) на его выходе, а элементы И 6 открыты дл прохода информационных сигналов.In the absence of interference in the information cables 2 and sync channels 3 and 4, the inputs of half-adder 5 receive early-polarization signals that do not change the state of the signal (high level) at its output, and elements And 6 are open for the passage of information signals.

Claims

Interference occurring in the transmitting lines from external fine-tuning occurs. as a rule, at the same time of the same variability in all transmitted channels, including in the channels of sync signals. Therefore, while the interference is in effect, both coinciding with the information and synchronization signals and not coinciding with them, the inputs of the half-adder 5 are fed with a single field pulse, set at its output a low signal level, and all the elements are closed and the transmission information is terminated. The receiver 8 transmits via the feedback channel 9 to the transmitter 7 a signal that there is 1 interference in the channels of the transmission equipment and its duration. This information can be used to re-request the part not received by receiver 8 or the part spoiled by interference transmitted by information transmitter 7. With the disappearance of the noise at the output of the half adder, a high level of the signal is restored and the AND elements are opened. The described device can also be used for asynchronous information transfer. In this case, the inputs of the synchrochannels 3 and 4 are supplied with high and low potentials, respectively. The use of the invention increases the noise immunity of information transmission devices from external electric and magnetic pulsed fields. An apparatus for transmitting and receiving signals, comprising a transmitter, information outputs of a goat are connected to information channels, and a receiver, characterized in that, in order to increase the noise immunity of the device, direct and inverse sync channels, information elements and a half-adder, information the channels are connected to the first inputs of the elements And, the outputs of which are connected to the inputs of the receiver, the output of which through the feedback channel is connected to the input of the transmitter, the outputs of the synchronization of the transmitter through the direct and inverse sync channels are connected to the inputs of the half adder, the output of which is connected to the second inputs of the AND elements and to the synchronization input of the receiver, the output of the direct sync & nala is connected to the third inputs of the information and information taken into account during the examination: 1. USSR author's certificate f 414585, cl. Q About If 3/04, 1971.

2. YES Sy & t | q cfesix5H froudiook Molofala, 1971, p.p. 65-67.