SU594513A2

SU594513A2 - Multipoint transmitting arrangement

Info

Publication number: SU594513A2
Application number: SU762368128A
Authority: SU
Inventors: Юрий Михайлович Новиков
Original assignee: Предприятие П/Я А-3852
Priority date: 1976-06-04
Filing date: 1976-06-04
Publication date: 1978-02-25

Description

. ; ; 1- Изобретение относитс к сигнальной автоматике, а именно к устройствам многоточечного контрол и сигнализации и вл етс усовёршенствова- нием известного устройства.. ; ; 1- The invention relates to signal automation, namely, multipoint monitoring and signaling devices, and is an improvement on a known device.

Из основного авт.свид.№472357 известно устройство дл многоточечной сигнализации, однако заьмкаювдий контакт реле, переключающий лампу на шину ровного света, с веро тностью 0,5 коммутирует полную мощность сигнальйой лампы,- что вызывает его об-, горание, износ, требует периодической зачистки контакта и, в конечном счете, снижает срок службьл. релеГП .A device for multipoint signaling is known from the main car, reference number 4,723,77, however, a relay contact switching a lamp on a flat light bus switches the full power of the signal lamp with a probability of 0.5, which causes its heating, wear and tear, requires periodic stripping of the contact and, ultimately, reduces the service life. relay GP.

Цель изобретени - повышение на-г дежности устройства.The purpose of the invention is to increase the reliability of the device.

Это достигаетс тем, что в известное устройство ки многоточечной сигнализации введены последовательно соединенные дополнительные контакты квитирующего выключател положени , резистор и диод, анод которого соединен с генератором импульсов, точка соединени катода диода и резистора подключена к управл ющему электроду тиристора, анод которого соединен с дополнительным контактом квитирующег выключател положени .This is achieved by introducing in series devices of a multipoint signaling in series the additional contacts of an acknowledgment position switch, a resistor and a diode whose anode is connected to a pulse generator, the connection point of the cathode of the diode and resistor is connected to the control electrode of the thyristor whose anode is connected to an additional contact Acknowledging switch position.

На чертеже представлена принципиальна схема устройства дл многоточечной сигнализации.The drawing shows a schematic diagram of a device for multipoint signaling.

Оно содержит источники 1 и 2 соответственно посто нного и пульсирую щего-напр жени , индивидуальные чейки 3,- 2 сигнализации, кажда из которых с.одержит датчик 4, сигнальную., лампу 5, квитирующее реле 6 с замыкающими контактами 7, 8 и разв зывающие диоды 9-12.It contains sources 1 and 2, respectively, of constant and pulsating-voltage, individual cells 3, - 2 alarms, each of which contains a sensor 4, an alarm, a lamp 5, an acknowledging relay 6 with closing contacts 7, 8 and Diodes 9-12.

Индивидуальные чейки сигнализации соединены с квитирующим выключателем 13 положени и с ключом, выполненным на тиристоре 14, св занным с генератором 15 импуль.сов.The individual signaling cells are connected to an acknowledging position switch 13 and to a key made on the thyristor 14 connected to the pulse generator 15.

Кроме того, в устройство введена последовательна цепочка включени тиристорного ключа 14, состо ща из дойолнительных контактов 16 квитирующего выключател 13 положени , резистора 17 и разв зывающего диода 18.In addition, a sequential switch-on circuit of the thyristor switch 14 is inserted in the device, consisting of the additional contacts 16 of the ack switch 13 of the position, the resistor 17 and the decoupling diode 18.

Устройство работает следующим образом .The device works as follows.

Claims

In the event of an emergency, the sensor 4 closes and creates a circuit for the flow of current of the lamp 5, which consists of the plus source 2 of the pulsating voltage, the sensor 4, the diode 10, the signal lamp 5, the diode 9, the thyristor. 14 and minus source

2. The current flowing through the THIS circuit will be intermittent (depending on the state of the thyristor 34), and 5 will blink. When the operator presses the acknowledgment switch 13, a circuit is formed to turn on the corresponding relay 6, which consists of the plus source 1 constant voltage, sensor 4, diode 11, relay 6, diode 12, the closing contact of switch 13 and minus source 1 Relay 6 becomes self-blocking by means of its closing contact 8 and closing contact 7 switches the lamp 5 to an even light, connecting it to the source 2 of the pulsating voltage. In this case, two cases are possible. In the first case, handshaking occurs at the moment when the thyristor key 14 is open, and the potential on the anode diode 9 is determined by the voltage drop on this diode and on the thyristor 14 in the direct direction, generated by flowing through. their lamp current. 5. If we neglect the voltage drop on the wires, the voltage at the anode of diode 9 is at its worst. will exceed 4 V, T kim, power capacity, switched by contact 7, at this moment will not exceed the value. . .:. (Lt), where TE is power, switched by pin 7; W.d is the current of the signal lamp -5, A In the second case, an acknowledgment occurs in. total time when thyristor key. 14 is closed. In this case, contact 7 commutes the total voltage IT-j of the source of the pulsating voltage: 2 and the switching power in this case is equal to p,., ..: j, (bT) -. Hanpt-y ep at Ui 220 V is the power ratio of switched contact 7 with closed and open thyristor 14 equal to -220 .. This shows that the introduction of a chain including thyristor key 14 at the time of acknowledgment can significantly reduce the power switched by the contact 7, and increase its operational P1 reliability, since in this case it will always accept the current of the lamp at a voltage level of no more than 4V. The job of the chain is as follows. When the operator pushes the switch 13 in position, his auxiliary contact 16 through the resistor 17 connects the control electrode of the thyristor 14 to its anode. In case the thyristor 14 is closed, between its anode and the control junction almost full voltage of the power source 2 is applied, therefore through the resistor 17, the thyristor control transition 14 will flow the input current and it will open. Diode 18 is non-OUT. So that the input current of the thyristor 14 is not bridged to the output of the generator 15 pulses of flashing. In order for the circuit to function. reliable, it is necessary that the thyristor .14 is unlocked before the switching of the contact 7 of the relay 6, i.e. the spread of the response time of pins 13 and 16 must be less than the switch-on time of relay b. The response time of the thyristor 14 itself can be neglected, because as it is two to three times less than the contact time. In the case of a large variation in the operation of the contacts 13 and 16, the contact, should be used as an additional contact 16. which closes earlier along the pusher. The introduction of the thyristor switch-on circuit with an additional contact to switch the position significantly reduces the requirements for the switching capabilities of the relay contacts, extends their service life, reduces maintenance costs and applies low-power but highly efficient (e.g. reed) relays as switching. Claims of Invention A device for multi-point signals based on auth. No. 472357, characterized in that, in order to increase the reliability of the device, in-line connection is introduced into it. Additional contact contacts of the acknowledge switch. Position, resistor and diode, the anode of which is connected to the pulse generator, the junction point of the cathode of the diode and the resistor is connected to the control electrode of the thyristor, the anode of which is connected to the additional contact of the feedback switch. Sources of information taken into account in the examination: 1. Copyright certificate №472357, cl. q 08 B 21/00, 1975;