SU1615766A1 - Device for flash indication of changing state of monitored object - Google Patents

Abstract

The invention relates to a signal technology and can be used in mechanical engineering, shipbuilding, instrument making and in other branches of the national economy for multipoint signaling of technological processes. The aim of the invention is to increase the reliability of the control results and the reliability of the device. The goal is achieved by the fact that the device for flashing signaling the state of the monitored object, containing the master pulse signal generator, the first switching on relay, N contact sensors, the first group of N signal cells, the common acknowledgment button signaling, two light indicators of the presence of pulses, the second group of N signal cells, the second on relay, the second master pulse generator is flashing th signaling defining two chime generator, two speaker, N individual buttons acknowledgment encoder. The introduction of additional units with appropriate connections allows to increase the reliability of the device by automatically switching channels when they fail. Converting the position code of the individual handshake buttons into a binary code and issuing this code to the output of the device allows to increase the reliability of the control results. 2 hp f-ly, 4 ill.

Description

The invention relates to a signaling technique and can be used in mechanical engineering, shipbuilding, instrument engineering and other branches of the national economy for multipoint signaling of technological processes.

The purpose of the invention is to increase the reliability of the control results and the reliability of the device.

Figure 1 shows the block diagram of the device; Fig. 2 is a functional diagram of the present cell; FIG. 3 is a functional block diagram of the control of writing signals of flashing alarms; figure 4 - functional diagram of the node control the presence of pulses.

The device contains signal cells 1, zadakshie generators 2 and 3 pulses of the flashing alarm, setting the generators 4 and 5 of the audible alarm, amplifiers 6-9, loudly

1 Alarm 10 and 11, flash alarm pulse detection unit 12, disconnecting contacts 13 and 14 (Respectively relay 15 and IS on, general acknowledgment button 16, |; disconnecting contact 17 and make contact 18, lights (| Pullers 19 and 20 have pulses, 1 non-contact sensors 21, individual confirmation buttons 22, each of which contains a closing contact 23, disconnecting contacts 24 and .15 and light alarms 26 and 27 1 frator 28, outputs of the device 29.

The signal cell 1 (FIG. 2) contains; a coil of a relay 30, its closing contact 31 and a switching contact J2, thyristors 33 and 34, diode 35, capacitor 36, resistor 37,

The unit 12 for monitoring the presence of impulses: a flash alarm (fig, 3) contains the nodes 38 and 39 of the control of pulses, the relay coil 40, its closing contact 41 and the disconnecting Contact 42, the closing contact 43 of the relay 44 and its switching contact 45,

 The node 38 (39) of monitoring the presence of pulses (FIG. 4) contains a single-loop ITOP 46 with a restart, a resistor 47, a capacitor 48, an amplifier 49, | resistor 50,

I Signal cells 1 are designed to memorize the state of contact sensors 21 (closed - open) | and highlight signals on flashing. Color and sound alarms when I change the state of sensors 21, i. The master oscillators 2 and 3 pulses are intended to generate flashes of flashing alarm and implement a pulse. modulations of generators 4 and 5,

The master oscillators 4 and 5 are designed to generate beeps.

Amplifiers 6 and 7 are designed to boost power and flashing lights.

Amplifiers 8 and 9 are designed to amplify the beeping pulses.

The block 12 of the control of the presence of a flash-signaling alarm is intended to control the presence of pulses in the main and backup channels of the formation of pulses of the flash-signaling and also for automatic

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switching to the backup channel in case of failure of the main channel;

Winding Relay 15 / | and 15 switching-ons and their opening contacts 13 and 14 are intended to turn on the driving generators 2 and 3 of the flashing alarm signal when the state of the contact sensors 21 changes.

Button 16 is for general acknowledgment of the changed state of the contact sensors. In this case, when the button 16 is pressed, the contact 17 opens, which leads to the removal of the positive potential of the power source, which, in turn, causes the relay 15 to turn on and the flash and audible alarm of the device.

The individual handshake buttons 22 are designed for individual handshaking of the changed state of the contact sensors 21 (the i-th contact sensor 21 corresponds to the i individual handshake button 22, where, 2 ,,,, п), the open contacts 24 and 25 of the individual handshake buttons 22 are intended for remove flash and sound alarms, close the contacts 23 of the individual handshake buttons 22 to issue information to the corresponding inputs of the encoder 28 from the handshake button 22,

When button 22 is pressed, the individual acknowledgment of the signal cells 1, and If,., Changes from the mode of issuing flashes of the flashing alarm to the mode of constant monitoring of the state of the monitored sensor 21. At the same time, the warning lamps 26 and 27 stop flashing and, if the contact sensor 21 set to a closed state, the light is not blinking. If the contact sensor 21 is set to the open state, the alarms 26 and 27 are not illuminated.

The encoder 28 is designed to encode the position code arriving at the inputs from the buttons 16, acknowledging into a binary code, which from the output of the encoder 28 arrives at the output of the device.

The node 38 of the control of the presence of pulses is designed to control the incoming pulses to its input. In the presence of pulses at the input of node 38, a single potential is established at its output.

In the absence of a dial, the potential is zero.

The device works in the following way.

When the supply voltage and the open contact sensors 21 are applied, the thyristor 34 of the signal cell 1 (Fig. 2) opens, the anode and cathode of which receive the positive and negative potential of the power source respectively, and the control input is formed by a positive polarity pulse 36 and a resistor 37. As a result, the relay 30 triggers, the contact 31 of which includes the relay 15, 15 / on. Contacts 13 and 14 are opened and the prohibition is removed from the inputs E of the generators 2 and 3 of the flashing signaling pulses. From the outputs of the generators 2 and 3 pulses of the flashing signaling, the pulses arrive at the inputs of amplifiers 6 and 7, from the outputs of which the pulses of the flashing alarm go to the inputs of nodes 38 and 39 of the presence of pulses of the control unit 12 for the presence of pulses of flashing alarm (fig.З). In the presence of pulses at the inputs of nodes 38 and 39 of the control of the presence of pulses, their potential is set to the potential of a logical unit. At the same time, the relay 40 triggers and the contact 42 opens the switching circuit of the relay 44. Simultaneously it closes: - contact 41 of relay 40 and flashing signaling pulses from the third output of control unit 12 for the presence of flashing signaling pulses go to the third inputs of signal cells 1 and inputs E of generators 4 and 5, as a result of which an audible alarm flashes. At the same time, the positive potential from the output of the node 39 for monitoring the presence of pulses through the contact 45 enters the light detector 19, which begins to glow with a constant light. This means that both kalals work, and the pulses come from the first channel.

Received on the third signal inputs, cells 1, the flashes of the flashing alarm through on. The contact 32 of the ES relay is supplied to the light alarms 26 and 27. As a result, all the alarms 26 and 27 of the individual acknowledgment buttons 22 are flashing with a flashing light. With

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This indicator 26 monitors the state of the perb. gh contact pairs, and the alarm indicator,): -; 2 / - state of the second. Hct1; b, y,; -. Ai of the corresponding stroke sensors 21.

When each common acknowledgment button 16 is pressed (-5z contact terminal T7, and the result: re is de-energized for all signal cells 1, winding relay 30 and h: -: switches 34j, contacts 31- and 32 are reset, End: - go: turn on the relay 15 on, stop; sound and probeslok signal: - almaziai, The signaling devices 26 and 27 of the individual acknowledgment buttons 22 are not illuminated. This means that the contact sensors 21 are open.

When one, several or all contact sensors 21 are closed in the corresponding cell 1, the thyristor 33 is opened, the cathode of which receives the negative potential of the power supply through the closed contact pair of the sensor 21 and the positive potential of the power source through the closed contacts 24 ,, to the anode. 25 of the corresponding button 22 of the individual handshake, one-time controlling ordering receives a positive impulse due to the discharge of x G; l -:;. Sator 36. At the same time, the pe.ire:; 0 contact, we enable relay 25 power on As a result, the sounds and flash alarms are activated. When one of the buttons 22 is pressed, the individual buttons, with-; common signaling devices of which meet with the flashing light; the contact is opened: .. 24 and 25, which causes the relay 30 to turn off in the corresponding pair of signal cells, and in the corresponding button 22 individually 1 about the acknowledgment, the sglizializators .6 and 27 are negative along the circuit . to. power supply - closed KOHT..iKT ibn i sensor 21 - closed contact 32 de-energized relay 30, When through closed contact 23 the pressed button 22 of the disidual vishrovaki in-h positive potential .al post} 1 to the corresponding. 28, x de converts into a binary shoe and enters the information output 29 of the device. When the OSH: 1 quits to 22 and the initial acknowledgment, the operation of the aHaj7GrH4Ha device. With

pressing the last individual handshake button 22, the signaling devices of which are flashing light, switches off the audible and flashing alarms. Further operation of the device is similar to that given.

Switching to the backup channel in the pulse control unit 12 is carried out in the following order. When the main channel fails, the 40 bl relay is de-energized (flashing alarm pulse control 12, its contact 41 is closed and contact 42 is closed, the relay 44 is activated, through a closed contact 43 of which the flashes of the flashing signal from the second input of the block 12 of the control of the presence of the flashes of the flashing alarm go to its third output. At the same time the positive potential from the output of the node 39 of the monitor and pulses through switching, the contact 45 of the switched on relay 44 enters the second output of the block 12, from where it arrives at the light indicator 20 of the presence of pulses, which starts to shine with a constant light, which means that only the backup channel is working.

Claims (3)

1. A device for flashing alarm of a change in the state of a monitored object, containing a common acknowledgment button, containing a break contact, the first master oscillator of flashing alarm signals, n contact sensors, the first group of n signal cells, the first inputs of each of which are connected to the first terminals of the first contact pairs of the same contact sensors, the second inputs of all signal cells of the first group are connected to the negative output of the power source, the third inputs of all signal cells of the first your group is connected, the fourth inputs of all signal cells of the first group are connected to the positive output of the power source, the first outputs of all signal cells of the first group are connected to the first terminal of the winding of the first on relay, the second one of which is connected to the negative output of the power source, the second leads of the first contact pairs of all contact sensors connect ten 15 20 25 thirty 35 five Q 0 five A negative power supply output, characterized in that, in order to increase the reliability of the control and reliability of the device, a second master oscillator of flashing alarms, first and second master oscillators, two loudspeakers, an encoder, a pulse control unit are introduced into it. flashing alarms, two light indicators for the presence of pulses, a second switch-on relay, a second group of n signal cells, n individual acknowledgment buttons, each of which in the form of a closing contact, two break contacts and two light alarms, a second contact pair is inserted into each contact sensor, a common acknowledgment button is added with a closing contact, the first terminals of the second contact pair of each contact sensor are connected to the first inputs of the same signal cell of the second group, the second terminals the second contact pair of all contact sensors are connected to the negative output of the power source, the second inputs of the signal cells of the second group are connected to the negative The power supply voltage signal, the first outputs of the signal cells of the second group are connected to the first output winding of the second switch-on relay, the second output of which is connected to the negative output of the power supply, the second outputs of the same signal cells of the first and second groups are connected to the first outputs of the first and second light signaling devices of the same name, respectively. individual handshake buttons, the second pins of the light alarms of all individual handshake buttons are connected to the positive output of the source power supply, the first terminals of the opening contacts of the first and second on relays are connected to the positive output of the power source, and the second terminals are connected to the control inputs of the first and second master oscillators of the flashing alarm, respectively, the outputs of which are connected respectively to the first and second inputs of the pulse control unit flashing alarm, the third input of which is connected to the negative output of the source91 power supply, and the first and second outputs are connected to the first terminals of the first and second light indicators of the presence of pulses, the second terminals of which are connected to the negative output of the power source, the third output of the control unit for the presence of flashes of the warning signal is connected to the third inputs of the signal cells of the second group, the third input of one of the signal cells of the first group and the control inputs of the first and second master oscillators, the outputs of which are connected to the first terminals and, respectively, the first and second loudspeakers, the second terminals of which are connected to the positive output of the power source, the fourth inputs of the signal cells of the second group are connected to the positive output of the power source, the fifth inputs of the same signal cells of the first and second 1 group are connected to the first terminals of the first and second respectively the second disconnecting contacts of the same name of the individual acknowledgment button, the second outputs of the disconnecting contacts of all the individual acknowledgment buttons are connected to the first output open contact common acknowledgment buttons, the first conclusions of the closing contacts of the individual handshaking buttons and the general handshake buttons are connected respectively to the first through (PI) inputs of the encoder, whose outputs are device outputs, the second terminals of the closing contacts of the individual handshake buttons and the general handshake button are connected to positive, the output of the power source. 2. Device pop, 1, characterized in that the signal cell contains two thyristors, a relay with closing and switching contacts, a diode, a capacitor and a resistor, the first pin of which is connected to the cathode of the first thyristor and the second input of the signal cell, the second by-pass of the resistor is connected with the control of the first thyristor and with the first output of the QM capacitor, the second 576610 the output of which is connected to the control output of the second thyristor and the cathode diode, the anode of which is connected to the cathode of the second thyristor, with the first fixed output of the switching contact of the relay and is the first input of the signal cell, the second fixed output of the switching contact Q of the relay is the third input of the signal cell , the movable output of the switching contact of the relay is the second output of the signal cell, the first output of the closing contact of the relay is the fourth input of the signal cell, and its second output is the first output m, the first terminal of the relay coil is a fifth input signal of the cell, and a second terminal of the relay coil 20 is connected to the anodes of the first and second thyristors. I 3. The device according to claim 1, characterized in that the control unit for the presence of pulses of flashing alarm contains the first and second control units for the presence of pulses, the first relay with closing and opening contacts, the second relay with closing 30 switching contacts, the first terminals of the relay windings combined and are the third input of the block, the first output of the closing contact of the first relay is the first input of the block and is connected to the input of the first node - 5 control for the presence of pulses, the output of which is connected to the second output about -. the coil of the first relay, the first output of the AM contact of the second relay is the second input of the unit and is connected to the input of the second control node for the presence of pulses, the output of which is connected to the first output of the disconnecting contact of the first relay and c. The moving output of the switching contact of the second relay, the first and second fixed outputs of the switching contact of which are respectively the first and second outputs of the unit, the second output of the opening contact of the first relay is connected to the second winding of the second relay, the second conclusions of the closing contacts of both relays are combined and are the third output block. 0 five 0 FIG. g Fi.Z four- J FIG.