SU518408A1

SU518408A1 - Contactless code decoder

Info

Publication number: SU518408A1
Application number: SU2071395A
Authority: SU
Inventors: Владимир Иванович Соколов
Original assignee: Уральский электромеханический институт инженеров железнодорожного транспорта
Priority date: 1974-10-18
Filing date: 1974-10-18
Publication date: 1976-06-25

Description

1one

Изобретение относитс к железнодорожной телемеханике и предназначено дл использовани в числовой кодовой автоблокировке и автоматической локомотивной сигнализации .The invention relates to railway telemechanics and is intended for use in numerical code auto-locking and automatic locomotive signaling.

Известны бесконтактные дешифраторы числового кода, содержащие входные шины, в которые введены соответственно замыкающий и размыкающий контакты импульсного путевого реле, включенного через изолирующий стык рельсовых цепей параллельно с трансмиттерным реле, формирователь Импульсов , в каждом канале сигнализации блокинг-генератор , выход которого через триггер, усилитель и выпр митель соедивен со входом соответствующего сигнального реле, конденсаторный накопитель, ключ, импульсный и потенциальный элементы ИЛИ Однако известные устройства характеризуютс значительной сложностью. Наличие в них, в частности электролитических конденсаторов большой емкости существенно снижает их эксплуатационную надежность.Known contactless decoders of the numeric code, containing input buses, into which, respectively, the closing and opening contacts of a pulsed traveling relay, connected via an insulating junction of track circuits in parallel with a transmitter relay, pulse former, are inserted in each channel of the blocking generator, which output through a trigger, amplifier and the rectifier is connected to the input of the corresponding signal relay, capacitor drive, switch, pulse and potential element. OR However, known devices characterized by considerable complexity-keeping. The presence in them, in particular of electrolytic capacitors of large capacity, significantly reduces their operational reliability.

Кроме того, в известных устройствах Отсутствует контроль короткого замыкани In addition, in known devices there is no control short circuit

изолирующих стыков рельсовой цепи, а число сигнальных показаний весьма ограничено .isolating joints of the track circuit, and the number of signal indications is very limited.

Цель изобретени - повышение надежности работы дещифратора с одновременным расширением его функциональных возможностей .The purpose of the invention is to increase the reliability of the descrambler while simultaneously expanding its functionality.

Дл этого в устройство введен двухтактный регистр, причем информационные входы двухтактного регистра подключены к одной входной шине, входы сброса через формирователь импульсов - к другой входной шине, а управл ющие выходы каждой пары смежных чеек его через соответствуюшие импульсный элемент ИЛИ и ключ - к управл ющему входу соответствующего конденсаторного накопител , выход которого соединен с входом соответствующего блокинг-генератора , а зар дный вход через соответствующий потенциальный элемент ИЛИ, замыкающий и размыкающий контакты трансмиттерного реле - с входными шинами.For this, a push-pull register is entered into the device, the information inputs of the push-pull register are connected to one input bus, the reset inputs through the pulse shaper are connected to another input bus, and the control outputs of each pair of adjacent cells through the corresponding pulse element OR and the key to the control the input of the corresponding capacitor accumulator, the output of which is connected to the input of the corresponding blocking generator, and the charging input through the corresponding potential element OR, closing and opening Transmitter relay contacts - with input buses.

Claims

In the drawing as. an example is a functional diagram of the decoder when implementing two signaling channels. The decoder contains a push-pull register with cells 1-4, impulse elements OR 5, 5, keys 6, capacitor drives j, 1 special elements OR S, 8 king-generators 9, 9, triggers fO, 10-, amplifiers (synchronizers 11 , 2. relay relays / 2, i2, pulse driver 13, The diagram shows the closing 14 and disconnecting 15 contacts of the transmitter relay and device input 1Q, 17. The decryptor works as follows In the initial state, all cells in the register contain zeros, bus 16 there is a-, g, g, t "," ttt, gy, g, "about" .g 1-7. "" "", "" "" "", "" "" "" "", "" "Unit potential is zero on bus 17. When the first code pulse arrives, the potentials of the buses change their values, which means that the logical unit in the register cell 1 records the logical unit. The resulting voltage across the control (unit voltage) a) the output of cell 1 through the pulse element OR 5 acts on the key 6j, closing it for a short time (on the order of a few milliseconds). However, the charge of the capacitor in the accumulator 7, through the potential element OR 5, is carried out only if the breaker is closed Pin 15. In the case of a short-circuit of the isolating junction, the pulse track and transport relays operate synchronously, so the capacitor in the storage device is not charged. After the end of the action of the element OR 5i, the key 6 again opens the blocking generator 9. Receiving power from the capacitor of the accumulator 7. It generates short (in the order of a few microseconds) pulses with High (about 10OO) following duty cycle. Due to the high duty cycle of following pulses, the energy stored in the condenser with a relatively small capacity (on the order of several microfarads) is enough to power the blocking generator for several code cycles. The pulses from the blocking oscillators 9 are fed to the counting input of the trigger iO, due to which the latter produces oscillations of a rectangular shape. These oscillations are amplified and rectified by amplifier ii, which ensures the continuous operation of signal relay i2 (for example, an LR relay). At the moment of the end of the first code pulse, a single potential appears again on bus 16, and zero at Bus 17 With this, the logical unit is written in cell 2 of the register. The voltage drop at the control (single) output of cell 2 via the pulse element OR 5. acts on switch 6, which for the second time during the action of the first pulse of the code cycle closes for a short time. In this case, if the closing contact 14 is closed, then the capacitor in the drive 7 will be able to be dispensed. In the case of synchronous operation of the pulse track and transmitter relays, the dosage circuit of the capacitor will not naturally be synthesized. Similarly, when the long interval occurs, the signal generator 12 is energized when a long interval occurs, the driver 13 generates a reset pulse, under which cells 1–4 of the register return to their initial state. For example, the Schmitt trigger can be used as the driver 13 having an input circuit at the input. The invention of the Weak-contact decoder of a numerical code, containing input buses, into which, respectively, the closing and opening contacts of a pulsed traveling relay, connected via an insulating junction of rail circuits in parallel with a transmitter relay, a pulse shaper, are inserted in each channel of the signal-blocking generator, which output through a trigger , the amplifier and the rectifier are connected to the input of the corresponding signal relay, a capacitor drive, a switch, a pulse and a potential element OR, distinguishing so that, in order to increase reliability and enhance functionality, it contains a push-pull register, the information inputs of the push-pull register are connected to one input bus, the reset inputs through the pulse shaper are connected to another input section, and the control outputs of each P adjacent cells it through the corresponding pulse elements OR and the key to the control input of the corresponding capacitor storage, the output of which is connected to the input of the corresponding blocking generator, and the charging input through The corresponding potential element OR, closing and opening the contacts of the transmitter relay - with input buses.