SU1425749A1 - Multipoint signaling system - Google Patents

Abstract

The invention relates to automation and can be used in multichannel signaling systems with the acknowledgment of deviations of parameters. ditch The aim of the invention is to improve the reliability of the device. The goal is achieved in that a device containing signaling cells, each of which is made of a capacitor, a signal lamp, a thyristor, two diodes, a sensor contact and the first resistor, a first button, a second button with a first closing contact, a buzzer, a pulse generator with contact , the starting thyristor, the first resistor and the power supply wiring, the second resistor and the NAND element are entered, the second button is complemented by two opening contacts and the second and third closing contacts, and in each cell the signal ization -Enter second, third and fourth resistors, and the phototransistor in a photocoupler and LED. In the control mode, a second button is pressed, which during its switching off causes the thyristors and signal lamps of the alarm cells to turn off, regardless of the state of the sensor contacts. With the integrity of the charge circuits of the capacitors of all the alarm cells, the buzzer and the pulse generator are turned on, and the warning lights are blinking. If no signal lamp is illuminated in this case, this indicates a malfunction of the pulse generator in the presence of an audible alarm or a malfunction of the thyristor control circuit. Shunting the contacts of the sensors after releasing the second button allows you to determine the failure of the capacitor charge circuit by the absence of a signal lamp in the corresponding alarm cell. If, when the second button is pressed, one or several signal lamps do not light up, then this indicates a malfunction of signal lamps or the corresponding diode circuit in the alarm cells. The lack of illumination of signal lamps after pressing and releasing the first button while the second button is pressed indicates a failure of the thyristor of the corresponding alarm cell. 1 il. 1G (L 4; go sd

Description

The invention relates to automatic switching and can be used in multi-channel signaling systems with the acknowledgment of parameter deviations.

The purpose of the invention is to increase the reliability of the device.

The drawing shows a circuit diagram of the device.

The device for multipoint signaling contains signaling cells 1, each of which is made up of capacitor 2, signal lamp 3, thyristor 4, diodes 5 and 6, resistors 7-10, phototransistor 11 and a diode 12 forming the optocoupler, and pin 13 of the sensor , the generator 14 pulses with contact 15, the audio signal for the aor 16, smpsagopts 17 closures 18 pins of the push button 19, instantly 20-22 and disconnected 23 and 24 pins of the control button 25, resistors 26 and 27 , starting thyristor 28, element AND-HE 29 and power supply units 30 and 31.

Element AND-29 can be filled with resistors 32-35 diodes 36 and transistor 37.

The device works as follows.

Device w .; eet work and control. In the initial mode of operation, all the contacts of the 13 sensors are open and the signal lamps 3 are not illuminated.

When any sensor pin 13 is closed in the corresponding alarm cell 1 through the break contact 24 of button 25, the break contact 23 of button 25, resistor 26, the control electrode junction is the cathode of the starting thyristor 28, the trip contact 17 of acknowledgment button 19 charges the capacitor 2.

The charge of 1yg-1 by the current of the capacitor 2 is opened by the starting thyristor 28, which leads to the activation of the acoustic alarm 16 and the pulse generator 14, which by its contact 5 through the diode 5 and the closed contact 13 of the sensor switches the flashing light 3, which is blinking. When the acknowledgment button 19 is pressed, the power supply circuit of the starting thyristor 28 is opened, and through the locking contact 8 of the button 19, the resistor 7 connected to the control and the thyristor electrodes are connected,

Q 5 0 5

ABOUT

Q j.

five

As a result, on the signaling cell I with a 3aMkHyTbiM sensor contact 13, the thyristor 4 is turned on and the signal lamp 3 is switched to steady light. When releasing the acknowledgment button 19, the information on the signal lamps 3 is memorized, the buzzer 16 and the pulse generator 14 are turned off and ready to receive a general signal about the subsequent sensor triggers. When the contact 13 of the sensor is opened, the signal lamp 3 turns off.

In the device control mode, press the control button 25 button.

During the switching of the control button 25, when the opening contact 24 is opened, all the contacts 13 of the sensors are disconnected from the source-supply bus 30, which leads to the disconnection of all thyristors 4 regardless of the state of the contacts of the 13 sensors and the switching off of the signal lamps 3.

When closing the contact 2 of the button 25 of the capacitor 2 of all the signaling cells is charged, the diode 6, the LED 12 of the transistor optocoupler, resistor 8, and the closed closing contact 20 of the button 25 are closed. The phototransistor i of the transistor optocoupler, from the collector of which the signal arrives at the corresponding input of the element I-NE 29; and the signals from the power supply source 3 are supplied to the inputs of the NAND device 29. This opens the transistor 37 and the signal from the power supply bus 30 comes through the locking contact 22 of the button 25, the resistor 27 to the control electrode of the starting thyristor 28, which opens. The audible tuner 16 is turned on, the generator of 14 pulses with its contact 15 through diodes 5 and 6 and the closing contact 2 of the button 25 switches the signal lamps of all the alarm cells into the flashing light mode regardless of the state of the contacts of the 13 sensors.

If no signal 3 is detected at the same time, this indicates the following: p; 1 pt {generator of 14 pulses in the presence of an audible alarm or a fault in the control circuits of the starting thyristor 28 in the absence of an audible alarm. It is necessary to release the button 25 and sequentially bypass the technological contact 13 of the sensor. If none of the signal lamps 3 is illuminated again, this indicates a malfunction of the starting thyristor 28. If during the sequential shunting of the contacts of the 13 sensors any signal lamps 3 are not illuminated, this indicates a fault in the charge circuit of the capacitor 2. When the The charge circuit device works similarly to the operating mode.

If, even when the button 25 is pressed, one or several signal lamps 3 are not illuminated, this indicates a malfunction of signal lamps 3 or a malfunction in the corresponding circuit of diodes 5 and 6.

Then, while the button 25 is pressed, the acknowledgment button 19 is pressed and lowered. In this case, the starting thyristor 28, the sound signal top 16 and the pulse generator 14 are disconnected, as well as the diode circuit 5 and all the thyristors 4 turn on through the resistors 7, which leads to the switching on of all signal lamps 3 in the glow mode. If any of the signal, amp 3 is not illuminated, this indicates a malfunction of the corresponding thyristor 4. If the signal lamp 3 did not light up before this flashing light mode, then the absence of its luminescence after acknowledgment indicates the burnout of the signal lamp 3 itself.

After the current release of the control button 25, the device is switched to the operation mode. In this case, the warning lights 3, corresponding to the open contact of the 3 sensors, are turned off, and the warning lights 3 in those alarm cells 1, where the contacts of the 13 sensors are closed, are blinking. Pressing the acknowledgment button 19 leads to an incessant illumination of the signal lamps 3, which have previously flashed.

Claims (1)

Formula from Gain A device for multipoint signaling, containing signaling cells, each of which contains a sensor contact, the nepBbtfi pin of which is connected to the cathode of the first diode, the first pin of the capacitor and the first pin of the signal lamp, the second pin of the pinnacle is connected to the anode of the second diode and the anode of the thyristor, control electrode which is connected with the first view of the first resistor, the cathodes of the thyristors of the signaling cells are connected to the first power supply bus, which is connected via the first contact of the first button to the starting thyristor cathode, the anode of which, through a parallel-connected acoustic alarm and a pulse generator, is connected to the second power supply bus, which through the first make contact of the second button is connected to the anodes of the first diodes of the signaling cells, second signals of the first resistors of the signaling cells are connected via a contact of the first button to the second power supply bus, the first bus of which is connected to the cathodes of the second diodes of the signaling cells, the second capacitors of the signaling cells combined, the second outputs of the sensor contacts are combined; the control electrode of the starting thyristor is connected to the first pin of the first resistor, which differs e e. with the fact that, in order to increase the reliability of the device, in one, the second resistor and the NAND element are entered, the second button is supplemented with two softening contacts and two closing contacts, and the second, third and the fourth resistors and a tron, made of a phototransistor and an LED, and in each signaling cell the first output of the second resistor is connected to the collector of the photoreducer, the resistor of the optocoupler, the emitter of which through the third resistor is connected to the base and connected to the first output of the fourth cut the device, the second output of which is connected to the cathode of the LED of the optocoupler, the anode of which is connected to the second capacitor, the second output of the capacitor of one of the signaling cells through the first disconnecting the contact of the second button is connected to the second output of the first resistor. The second pin of the sensor contact of one of the signaling cells through the second