SU841003A1

SU841003A1 - Device for starting telemechanic system distributor

Info

Publication number: SU841003A1
Application number: SU792828726A
Authority: SU
Inventors: Игорь Витальевич Самойленко; Александр Митрофанович Голубчиков; Василий Иванович Шапошник
Original assignee: Научно-Производственное Объединениеавтоматторгмаш
Priority date: 1979-10-01
Filing date: 1979-10-01
Publication date: 1981-06-23

Description

Изобретение относится к телемеханике и обеспечивает запуск распределителя, размещенного на удаленном объекте, без использования дополни- » тельных линий связи.The invention relates to telemechanics and enables the start-up of a distributor located at a remote site without the use of additional communication lines.

Известно устройство, предназначенное для запуска распределителя телемеханической системы контролируемого объекта, содержащее блок пи- .« тания и ключи [1].A device is known for starting a distributor of a telemechanical system of a controlled object, comprising a power unit and keys [1].

Недостатком этого устройства является то, что конструктивно оно располагается в диспетчерском пункте и соединяется с первой ячейкой распределителя на контролируемом объекте 15 дополнительным проводом.The disadvantage of this device is that it is structurally located in the control room and connected to the first cell of the distributor on the controlled object 15 with an additional wire.

Наиболее близким техническим решением к предлагаемому является устройство запуска распределителя телемеханической системы, содержащее 20 распределитель, ячейки которого выполнены на тиристорах и ключах; подключенные к тактовым шинам питания, ключ через дополнительный канал связи подключен к первой ячейке распре- 2э делителя.The closest technical solution to the proposed one is a device for starting a telemechanical system dispenser, comprising 20 dispensers, the cells of which are made on thyristors and keys; connected to the power supply clock buses, the key is connected through an additional communication channel to the first cell of the divider distributor.

Эта система телемеханики состоит из диспетчерского и контролируемого пунктов и предназначена для управления объектами с инерционными испол- 30 нительными механизмами. Узел запуска распределителя контролируемого объекта конструктивно расположен на диспетчерском пункте. Сигнал запуска распределителя контролируемого объекта выдает выходной ключ этого· узла по дополнительному соединительному проводу от диспетчерского пункта до первого контролируемого объекта £2J.This telemechanics system consists of dispatching and controlled points and is designed to control objects with inertial actuating mechanisms. The dispenser launch unit of the controlled object is structurally located at the control room. The start-up signal of the distributor of the controlled object gives the output key of this node via an additional connecting wire from the control room to the first controlled object £ 2J.

Недостаток этого устройства - наличие дополнительного соединительного провода для запуска первой ячейки распределителя объекта, что усложняет устройство.The disadvantage of this device is the presence of an additional connecting wire to start the first cell of the object distributor, which complicates the device.

Цель изобретения - упрощение устройства .The purpose of the invention is to simplify the device.

Поставленная цель достигается тем, что в известное устройство для запуска распределителя системы телемеханики, содержащее распределитель, ячейки которого выполнены на тиристорах и ключах , подключенные к тактовым шинам питания, введены выпрямитель, ограничитель тока на резисторе, реле времени, которое содержит транзисторы, диоды, резисторы, конденсатор и оптрон, входная цепь которого соединена с одним выходом выпрямителя и через первый резистор с коллектором первого транзистора, эмиттер которого подключен через второй резистор к первому выходу выпрямителя, через первый диод- ко второму выходу выпрямителя и через третий резистор - к базе первого транзистора, которая через второй $ диод соединена с коллектором второго .транзистора> который через четвертый резистор подключен, к первому выходу . выпрямителя, который через пятый резистор соединен со входом конден- , _ сатора, выход которого подключен к ¹эмиттерам транзисторов, база второго транзистора соединена через шестой ' резистор со входом конденсатора и через седьмой резистор - со вторым выходом выпрямителя,выходная цепь опт-15 рона реле времени подключена последовательно через ограничитель тока йа резисторе к одной из тактовых шин пи-^№ тания и к управляющему входу тиристора первой ячейки распределителя.This goal is achieved by the fact that a rectifier, a current limiter on the resistor, a time relay that contains transistors, diodes, and resistors are introduced into the known device for starting the distributor of a telemechanics system containing a distributor, the cells of which are made on thyristors and switches connected to the clock power buses , a capacitor and an optocoupler, the input circuit of which is connected to one output of the rectifier and through the first resistor to the collector of the first transistor, the emitter of which is connected through the second resistor to the first the output of the rectifier, through the first diode to the second output of the rectifier and through the third resistor, to the base of the first transistor, which is connected through the second diode to the collector of the second transistor> which is connected through the fourth resistor to the first output. a rectifier, which is connected through the fifth resistor to the input of the capacitor, the output of which is connected to ¹ emitters of transistors, the base of the second transistor is connected through the sixth resistor to the input of the capacitor and through the seventh resistor to the second output of the rectifier, the opt-15 output circuit time switch is connected in series through a current limiter resistor da to one of the bus clock pi ^№ Thaniah and to the control input of the thyristor of the first distributor cell.

На чертеже представлена принципиальная схема устройства.The drawing shows a schematic diagram of a device.

Устройство состоит из ячеек 1 -1 , образующих распределитель, выпрямителя 2, к положительному полюсу выпря Жителя 2 подключены резисторы 3 и 4, связанные с цепями баз транзисторов инвертора 5 и входного транзистора 6. Кроме того, положительный полюс выпрямителя 2 через диод 7 смещения соединен с эмиттерами транзисторов .The device consists of cells 1 -1, forming a distributor, rectifier 2, resistors 3 and 4 connected to the base circuits of transistors of inverter 5 and input transistor 6 are connected to the positive pole of rectifier Resident 2. In addition, the positive pole of rectifier 2 is connected through a bias diode 7 with emitters of transistors.

и б и дальше через резистор 8 с отрицательным полюсом выпрямителя. К эмиттерам транзисторов 5 и б также подключен конденсатор 9, который через резистор 10 соединен с цепью'базы 55 транзистора б. Конденсатор 9 и резистор 10 соединены через резистор 11 с отрицательным полюсом выпрямителяand b and further through the resistor 8 with the negative pole of the rectifier. A capacitor 9 is also connected to the emitters of transistors 5 and b, which is connected through a resistor 10 to the base circuit 55 of transistor b. The capacitor 9 and the resistor 10 are connected through a resistor 11 to the negative pole of the rectifier

2. Кроме того, коллектор транзистора б через резистор 12 соединен с цепью 40 базы транзистора' 5, в цепи коллектора которого включены резистор 14. Выход ная цепь 15 оптрона через ограничитель тока на резисторе 16 подключена к управляющему электроду тиристора 45 17 первой, ячейки распределителя.2. In addition, the collector of transistor b is connected through resistor 12 to circuit 40 of the base of transistor 5, the collector circuit of which includes resistor 14. The output circuit 15 of the optocoupler is connected via a current limiter to resistor 16 to the control electrode of thyristor 45 17 of the first distributor cell .

Реле 18 времени, тактовые шины 19 питания, входная цепь 20 оптрона.Time relay 18, power supply bus clock 19, optocoupler input circuit 20.

Устройство работает следующим образом. _е The device operates as follows. _e

Синхронизирующим устройством диспетчерского пункта в первый момент времени ^.обеспечивается подача положительного напряжения на одну шину 19. 'относительно другой шины. К тактовым шинам 19 подключен выпрямитель 2, подающий напряжение питания на реле 18 времениИмпульсы тактового генератора распределителя -1_П имеют прямоугольную форму. Смена их полярности на шинах.распределителя 1,-1_Ппроисходит с короткой паузой (порядка 10-20 мкс), . В момент подачи напряжения на реле_18 времени с выхода выпрямителя 2 начинается заряд конденсатора 9 по цепи (диод смещенияAt the first instant of time, the control unit’s synchronizing device ensures the supply of positive voltage to one bus 19. 'relative to the other bus. A rectifier 2 is connected to the clock buses 19, which supplies the supply voltage to the time relay 18. The pulses of the -1 _P distributor clock are rectangular. The change of their polarity on the tires of the distributor 1, -1 _P occurs with a short pause (about 10-20 μs),. At the time of supplying voltage to the relay_18 time from the output of the rectifier 2, the charge of the capacitor 9 begins on the circuit (bias

7, конденсатор 9, резистор 11).Входной транзистор 6 реле времени оказывается закрытым поскольку·, в цепи его базы положительный потенциал на резисторе 11 близко к потенциалу его эмиттера (вследствии заряда конденсатора 9), через рейистор 4 нд базу транзистора 6 поступает напряжение положительного смещения, и благодаря резистору 10 в цепи базы ток не достаточен для открывания транзистора 6 даже при некоторой разнице по- . тенциалов на концах резистора 10. Так как транзистор6 закрыт током базы через диод 13 и резистор 12, то открывается транзистор 5. Током, протекающим через резистор 14, и входную цепь 20 оптрона выходная цепь 15 последнего открывается и током через управляющий электрод - катод тиристора 17 первой ячейки 11 распределителя и через входную цепь тиристора следующей его ячейки открывается тиристор 17. При этом шунтируются резистор 16 и выходная цепь 15 оптрона.7, capacitor 9, resistor 11). The input transistor 6 of the time relay turns out to be closed because ·, in the circuit of its base, the positive potential on the resistor 11 is close to the potential of its emitter (due to the charge of the capacitor 9), a positive voltage is supplied through the 4 nd base of the transistor 6 bias, and thanks to the resistor 10 in the base circuit, the current is not enough to open the transistor 6 even with some difference in. potentials at the ends of resistor 10. Since transistor6 is closed by the base current through diode 13 and resistor 12, transistor 5 is opened. By current flowing through resistor 14 and the input circuit 20 of the optocoupler, the output circuit 15 of the latter is opened and by current through the control electrode - the cathode of thyristor 17 the first cell 11 of the distributor and through the input circuit of the thyristor of its next cell opens the thyristor 17. In this case, the resistor 16 and the output circuit 15 of the optocoupler are shunted.

Поэтому после снятия входного сигнала оптрон закрывается, даже если он имеет тиристорный выход с памятью.Therefore, after removing the input signal, the optocoupler closes, even if it has a thyristor output with memory.

По мере заряда конденсатора 9 положительный потенциал на резисторе 11 падает и при достаточно малом его значении ток, протекающий через резистор 10, открывает транзистор 6. Положительным потенциалом его коллектора подпирается диод 13 в цепи базы транзистора 5. Транзистор 5 закрывается и, следовательно снимается открывающий сигнал с входной цепи оптрона 20. Таким образом, выходной ключ на оптроне 20 и 15 реле 18 времени закрывается, но оставшуюся часть первого тактового импульса тиристор 17 остается открытым .As the capacitor 9 charges, the positive potential on the resistor 11 drops and, at a sufficiently small value, the current flowing through the resistor 10 opens the transistor 6. The diode 13 in the base circuit of the transistor 5 is supported by the positive potential of its collector. The transistor 5 closes and, therefore, the opening signal is removed from the input circuit of the optocoupler 20. Thus, the output switch on the optocoupler 20 and 15 of the time relay 18 is closed, but the remainder of the first clock pulse of the thyristor 17 remains open.

При смене полярности тактовых импульсов распределителя кратковременная пауза между последними не вызывает сигнала на выходе реле 18 времени, поскольку за время паузы конденсатор 9, разряжаясь через переход эмиттер-база транзистора 6 и резистор 10, поддерживает транзистор открытым в том числе и сразу после окончания паузы и, вместе с тем, не разряжается за время паузы постоянно, чтобы током его заряда после подачи напряжения очередного импульса закрылся транзистор 6. Очередной импульс на открывание первого тиристора распределителя 1^ - 1_преле 18 времени выдает только после синхронизирующей паузы в конце цикла работы распределителя, достаточно длительной, чтобы конденсатор 9 разрядился полностью.When changing the polarity of the clock pulses of the distributor, a short pause between the last does not cause a signal at the output of the time relay 18, since during the pause, the capacitor 9, discharged through the emitter-base transition of the transistor 6 and the resistor 10, keeps the transistor open, including immediately after the pause ends and at the same time, it does not discharge continuously during the pause, so that the transistor 6 closes by the current of its charge after applying the voltage of the next pulse. The next pulse to open the first thyristor of the distributor 1 ^ - 1 _n rel It gives out 18 times only after a synchronizing pause at the end of the distributor cycle, long enough so that the capacitor 9 is completely discharged.

Устройство упрощает телемеханическую систему, уменьшает количество соединительных проводов между диспетчерским и контролируемым пунктами.The device simplifies the telemechanical system, reduces the number of connecting wires between the control room and the controlled points.

Claims

The invention relates to telemechanics and enables the launch of a distributor located at a remote object, without using additional communication lines. A device for launching a distributor of a telemechanical system of a monitored object is known, which contains a power supply unit and keys l. The disadvantage of this device is that it is structurally located in the control room and is connected to the first cell of the distributor on the object to be monitored by an additional wire. The closest technical solution to the present invention is a trigger device for a telemechanical system distributor, comprising a distributor, the cells of which are made on thyristors and keys; Connected to the clock power Shing # 4, the key is connected to the first cell of the distributor via an additional communication channel. This telemechanic system consists of the control room and controlled points and is designed to control objects with inertial actuators. The launch node of the distributor of the controlled object is structurally located at the control center. The start signal of the distributor of the monitored object generates the output key of this node via the additional connecting wire from the control room to the first controlled object 2. The disadvantage of this device is the presence of an additional connecting wire for starting the first cell of the object distributor, which complicates the device. The purpose of the invention is to simplify the device. This goal is achieved by the fact that a known device for starting the distributor of the telemechanic system, containing a distributor, whose cells are made on thyristors and keys connected to the power supply clock buses, is inserted into a rectifier, a current limiter on a resistor, a time relay that contains transistors, diodes, resistors , a capacitor and an optocoupler, the input circuit of which is connected to one output of the rectifier and through the first resistor to the first transistor set. the emitter of which is connected through the second resistor to the first output of the rectifier, through the first diode to the second output of the rectifier and through the third resistor to the base of the first transistor, which through the second, the diode is connected to the collector of the second .transistor / which through the fourth resistor is connected to the first output of the rectifier, which through the fifth resistor is connected to the input of a capacitor, the output of which is connected to the emitters of the transistors, the base of the second transistor is connected through the sixth resistor to the input of the capacitor and through the seventh History - the second output of the rectifier, the output circuit op Rhone time switch connected successively through a current limiter resistor da to one of the bus clock pi Tani and to a control input of the first cell tiristo ra distributor. The drawing shows a schematic diagram of the device. The device consists of cells 1 -1 forming a distributor, rectifier 2, resistors 3 and 4 are connected to the positive pole of rectifier 2 and 2 connected to the circuits of the bases of TE anzistors of the inverter 5 and the input transistor 6 In addition, the positive terminal of the rectifier 2 through a diode 7 is connected to the emitters of the transistors 5iB and further through the resistor 8 with the negative pole of the rectifier. A capacitor 9 is also connected to the emitters of the transistors 5 and b, which is connected to the chain of bases of the transistor b through the resistor 10. The capacitor 9 and the resistor 10 are connected via the resistor 11 to the negative pole of the rectifier 2. In addition, the collector of the transistor 6 through the resistor 12 is connected to the base circuit of the transistor 5, the collector of which includes the resistor 14. The output to the 15-optocoupler circuit through the current limiter the resistor 16 is connected to the control electrode of the first thyristor 17, the distributor cell. Time relay 18, clock bus 19 pitan, input circuit 20 of the optocoupler. The device works as follows. with the synchronization device of the control room, at the first moment in meni, a positive voltage is applied to one bus 19, relative to the other bus. A clock 2 is connected to the clock buses 19, which supplies the supply voltage to the time relay 18. The pulses of the clock generator of the distributor are rectangular. The change of their polarity on the distributor tires occurs with a short pause (on the order of 10-20 me) ,. At the time of applying voltage to time, the output of rectifier 2 begins to charge the capacitor 9 across the circuit (bias diode 7, capacitor 9, resistor 11). The input time transistor b time relay turns out closed, as a result of a positive potential across the resistor 11 close to the potential of its emitter (due to the charge of the capacitor 9), the positive bias voltage is supplied through the resistor 4 nd base of the transistor b, and due to the resistor 10 in the base circuit, the current is not sufficient to open the transistor b even with some difference. of the terminals on the ends of the resistor 10. Since the transistor 6 is covered by the base current through the diode 13 and the resistor 12, the transistor 5 opens. The current flowing through the resistor 14 and the optocoupler input circuit 20 opens the output circuit 15 of the latter and the current through the control electrode - the thyristor cathode 17 of the first distributor cell 11 and the thyristor 17 opens through the input circuit of the thyristor of the next cell. At the same time, the resistor 16 and the output circuit 15 of the optocoupler are shunted. Therefore, after the input signal is removed, the optocoupler closes, even if it has a thyristor memory output. As the capacitor 9 charges, the positive potential at the resistor 11 drops and, if its value is sufficiently small, the current flowing through the resistor 10 opens the transistor b. The positive potential of its collector is suppressed by diode 13 in the base circuit of transistor 5. Transistor 5 closes and, consequently, opens the opening signal from the input circuit of the optocoupler 20. Thus, the output switch on the optocoupler 20 and 15 time relay 18 closes, but the rest of the first clock pulse thyristor 17 remains open. When the polarity of the clock pulses of the distributor changes, there is no short pause between the latter. causes a signal at the output of the time relay 18, since during the pause the capacitor 9, discharging through the emitter-base junction of transistor b and resistor 10, keeps the transistor open, including immediately after the end of the pause, and at the same time does not discharge pause time is constant, so that the current of its charge after the application of the voltage of the next pulse closes the transistor b. Another impulse to open the first thyristor of the distributor 1. - 1 time relay 18 issues only after a synchronization pause at the end of the operation cycle of the distributor, long enough for the capacitor 9 to be fully discharged. The device simplifies the telemechanical system, reduces the number of connecting wires between the controller and the controlled points. Claims of the invention A device for starting the distribution of a telemechanical system body comprising a distributor whose cells are made on thyristors and keys connected to a power supply circuit, characterized in that, in order to simplify the device, a rectifier, a current limiter on a resistor, and a time relay, which contains transistors, diodes, resistors, a capacitor and an optocoupler, the input circuit of which is connected to one output of the rectifier and through the first resistor to the collector of the first transistor whose emitter connected through the second resistor to the first output of the rectifier, through the first diode to the second, output of the rectifier and through the third resistor to the base of the first transistor, which is connected via a second diode to the collector of the second transistor, which through the fourth resistor is connected to the first output of the rectifier which through the fifth resistor is connected to the input of a capacitor, the output of which is connected to the emitters of the transistors, the base of the second transistor is connected through the sixth resistor to the input of the capacitor and through the seventh resistor - cb With the output of the rectifier, the output circuit of the optocoupler of the time relay is connected in series through a current limiter on the resistor to one of the power supply clock buses and to the control input of the thyristor of the first distributor cell. . . . Sources of information taken into account during the examination 1. USSR author's certificate 393762, cl. G08 From 19/17, 1970.

2.Golubchikov A.M. Telemechanical system TV-lC control of sectional irrigation and control of the extension of hydraulic jacks. Sat Mining machines and automation. M., Central Research Institute for the Economy and Scientific and Technical Information of the Coal Industry. 1975, OP.1, p. 30-32 (prototype).