SU435550A1 - DEVICE FOR TELESIGNALIZATION ON THE CONDITION OF DISTRIBUTED OBJECTS WITH A GENERAL WIRELESS COMMUNICATION LINE - Google Patents

Description

one

The proposed device relates to the field of telemechanics and is designed to obtain independent two-digit information about the state of several controlled points connected to a common two-wire communication line of a chain structure.

Devices for remote signaling of the state of dispersed objects with a common wired communication line are known, containing a pulse generator at the control room, the input of which is connected to the output of the pulse generator, and the first output is connected to one of the transmitter inputs, a pulse distributor, the input of which is connected to the second output pulse generator, and the first group of outputs - to one of the inputs of the corresponding memory blocks, indication blocks of the state of the object, the inputs of which are connected to the outputs of the corresponding blocks Am minute and with respective signal inputs block ringing signals, a receiver, whose output is connected to the other inputs of the memory blocks shaper pauses, and the indicator control unit serviceability link. At each controlled point of the device, it contains an object state sensor with opening contacts, a key for signaling, a one-shot, a delay unit, a polarizer de-discriminator, and a linear key.

parallel with which a diode is connected in a non-conducting direction.

However, in known devices at each controlled point, a pulse distributor is provided for the total number of channels, of which only one is used. This leads to excessive equipment and reduces the reliability of the devices. In addition, the lack of monitoring of the health of the communication line on each cycle of the device also reduces their reliability.

The proposed device is characterized in that in it at the control room the second

the group of outputs of the pulse distributor is connected to the inputs of the gap generator, the output of which is connected to another input of the transmitter, the inputs of the control unit are connected to the outputs of the receiver and the shaping device

pauses, and the output to the input of the link health indicator and the control input of the ring signal unit. At each controlled point between the wires of the communication line, the disconnecting contacts of the object state sensor, the remote signaling key and the polarizer key are connected in series. The input of the delay unit is connected to another output of the polarizer's depositor, the first output is connected to the control

the linear key input, and the second output through the one-shot - with the control input of the remote signaling key. This makes it possible to simplify the device and increase its reliability. The drawing shows a functional diagram of the proposed device. It contains at the control room a pulse generator 1, a pulse shaper 2, a pulse distributor 3, a shaper 4, a transmitter 5, a receiver 6, a control unit 7, a link health indicator 8, a ring signal block 9, memory blocks 10) -10 „And object indication units lli-lU- In addition, the device includes dispersed diodes 12i-12p dispersed along the communication line (wires I and II) at controlled points, polarizers I3i-13p, delay blocks 14i-14p , linear keys 15i - LVP, one-shot 16i-16 ", keys for remote signaling 17i-17 and the sensors of the object with break contacts 18i-18i. The device works as follows. When the power is turned on at the control room, the pulse generator 1 generates pulses that are converted by the driver of the pulses 2 into clock pulses that control the operation of the transmitter 5 and the pulse distributor 3. The output signals of the pulse distributor 3 alternate between the first 10 clock cycles of the lOi-10 memory blocks channels, and on the next pause by the shaper 4, is converted into a sending of a pause with a duration equal to the pacing of the distribution cycles, which is also fed to the input of the transmitter 5. As a result, pulses of tact and pause at the inputs of the transmitter 5, which is a reverse electronic relay, at its output connected to the wire I of the communication line, packages (series) of ten advancing pulses (telecontrol pulses) are formed cyclically with a pause of six ticks, and a continuous series of readout (remote signaling) pulses with polarity inverse to the advancement pulses. The communication line consistently bypasses all controlled points where linear kits are included, which divide it into separate sections. Linear sets contain one elementary cell of the counter, which, when connected together, form a linear separator spaced in space. At each distribution cycle, two time-shifted different polarity parcels are transmitted to the link from the control room. Sending the advancement involves a regular linear set, and sending the readout determines the position of the object state sensor mounted on it. The first advancing parcel received by wire I to the input of the first linear set is not passed by the closed linear switch 15i to its output, and through the polar sign decoder 13 and delay unit 14i is fed to the input of the one-shot 16i and prepares it for operation. On the second half of the tact in the communication line, the polarity changes, i.e., a read message is sent through it. In this case, the delay unit 14i enters the active state, and the one-shot 16i opens the remote signaling key 17i. Sending the readout, passing through the polar code 13i decoder 13i, the remote signaling key 17 and the closed contacts of the object state sensor 18i, through the wire II of the communication line enters the receiver 6 of the control room. On the second and subsequent clock cycles, the delay unit 14i, due to the energy of the pushing parcels, maintains an active state, which prohibits the repeated operation of the single vibrator 16i and the remote signaling key 17, and also keeps the linear key 15i open until the series of advancing pulses ends. Thus, at each distribution cycle, a linear set of the next monitored item is put into operation and the position of the object state sensor installed on it is read. The return of the linear sets of all monitored points to the initial state occurs during the pause between the series of rotor-impulses, and with the arrival of the new series, the cycle repeats. The read pulses, the passage along the communication line through the contacts of the sensors of the objects 18i-18p and the guiding diodes 12i-12 "at the corresponding distribution steps, arrive at the input of receiver b, which is a threshold element. At the same time, at the output of the receiver 6, the signal appears only for those controlled points for which the contacts of the sensor of the object state are closed. The signal from the output of receiver 6 goes to the inputs of the lOi-10 channel memory blocks. In the memory block, the input of which at a given moment of time receives the switching signal from the distributor 3, the television signal is compared with the position of the control key included in the memory block. If the television signal does not match the position of the control key, this block of memory includes an object state indication block and a block of called signals 9. In the event of a short circuit between the wires of the communication line, the reading pulses appear to bypass the linear sets. As a result, these impulses during the science between the series of propulsive impulses are fed to the input of the receiver 6, the output of which is connected to the input of the control unit 7. The other input (also during the pause)

Control 7 receives a signal from the output of the gap maker 4. When these signals simultaneously arrive at the inputs of the control block 7, the link health indicator 8 and the ring signal block 9 are turned on.

Synchronous switching of the distributor 3 of the control room and the linear sets is provided with a common source of clock pulses (pulse shaper 2). Synphation occurs at the beginning of each cycle and is achieved by the fact that the linear components retain the active state for the entire time that their inputs receive advance pulses and return to their initial state during the pause between packets of these pulses.

Subject invention

A device for remotely signaling the state of dispersed objects with a common nwired communication line, which contains a pulse generator at the control room, the input of which is connected to the output of the pulse generator, and the first output is connected to one of the transmitter inputs, a pulse distributor, whose input is connected to the second output pho (pM1Pulserer, and the first group of outputs - to one of the inputs of the corresponding memory blocks, indication blocks of the object state, the inputs of which are connected to the outputs of the corresponding memory blocks

and with the corresponding signal inputs of the ringing unit, the receiver, the output of which is connected to the other inputs of the memory blocks, the gap generator, the control unit 5 and the link health indicator, at each monitored point is an object state sensor with opening contacts, a tele-alarm key, a one-shot, a delay unit, a polarizer decipher, and a linear switch, in parallel with which a diode is connected in a non-conducting direction, characterized in that, in order to simplify the device and increase its reliability, there, at the control room, the second group of outputs of the pulse distributor is connected to the inputs of the gap generator, the output of which is connected to another transmitter input, the inputs of the control unit are connected to the outputs of the receiver and the gap generator, and the output to the input of the link health indicator and control input of the unit ringing signals; at each controlled point between the wires of the communication line are connected in series

5 disconnecting contacts of the sensor of the state of the object, the key of the remote signaling and the decoder of the polar sign; the input of the delay unit is connected to another output of the polarizer tag decoder, the first output is connected to the control input of the linear key, and the second output via the one-shot is connected to the control input of the remote signaling key.

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