Remote control and management of subscriber devices distributed networks

 

(57) Abstract:

The proposed device relates to the field of multi-channel transmission systems with time division channels and can be used to build local networks for process control, transport means or alarm systems. The technical result that can be obtained by implementation of the proposed device is to increase the reliability of the device and extend its functionality by means of unification with existing tools for automatic control. The reliability of the device is increased due to the introduction in its Central part and a number of peripheral regenerators, as well as block I / o multiplexed signal, which restores the shape, amplitude and timing multiplex signal. In addition, due to the inclusion in the composition of the group of multiplexed signal oscillation clock frequency and the selection of this clock frequency in peripheral punjah to synchronize the operation of the selectors, channels and blocks conversion of the signal also increases reliability of the devices of the inverter control signals and the transcoder, which allow you to manage the system using standard computer equipment, having a normalized junction with primary and secondary network information transfer. 9 Il.

The proposed device relates to the field of multi-channel transmission systems with time division channels and can be used to build local networks for process control, transport means or alarm systems.

It is known device described in the book Besir Agricultural and other Digital switching. - M.: Radio and communication, 1984, S. 15, 16, Fig.1.12.

This device is intended for the organization of information exchange between the control unit and display and selectors channel using multiplexing.

However, the known device does not provide high reliability due to complete cessation of information exchange in the presence of a break or short circuit in communication line.

The closest in technical essence is the remote control of electrical consumers is described in the patent of the Russian Federation N2046495, IPC H 02 J 13/00, 1995

Derivately multiplexed signal, selectors channels and blocks the conversion of signals.

The disadvantage of this device is that it has no versatility, requiring specialized driver multiplexed signals (CPU), and does not provide the necessary reliability of synchronization systems, because of clock synchronization in this case is made, or by extracting the clock from the group of the digital signal, which is difficult in technological networks due to the very high noise level, or by passing the clock through separate circuits, which lowers the reliability of the system.

The technical result that can be obtained by implementation of the proposed device is to increase the reliability of the device and extend its functionality by means of unification with existing tools for automatic control.

To achieve this, the technical result in the device remote monitoring and management of subscriber devices distributed networks containing the control unit and alarm, the display unit, the imaging unit multiplex signal and the number of preferenceloader United analyzer multiplexed signals, the Converter control signals and the control unit, and the input of the analyzer demultiplexing signals coupled to the output control signal, the input of the display unit connected to the first output control unit, the transcoder connected first and second inputs respectively to the second and third outputs of the control unit, the second input is connected to the first output of the transcoder, the Central regenerator, block I / o multiplexed signal, the output of which is connected through the Central regenerator multiplexed signal to the third input of the transcoder, the second output of which through the shaper multiplexed signal connected to the first input of the block I / o multiplexed signal, and each peripheral block peripheral entered the regenerator multiplexed signal, station entries each of which is connected to the selectors, channels, and line inputs via the multiplex communication line connected to the line terminals of the block I / o multiplexed signal.

The reliability of the device is increased due to the introduction in its Central part and a number of peripheral regeneration ratios multiplex signal.

In addition, due to the inclusion in the composition of the group of multiplexed signal oscillation clock frequency and the selection of this clock frequency in peripheral items to synchronize the operation of the selectors, channels and blocks conversion of the signal also increases reliability of the device.

Functionality extended by the introduction of the device control unit, a drive control signals and the transcoder, which allow you to manage the system using standard computer equipment, having a normalized junction with primary and secondary network information transfer.

As the control unit can be used in a typical PC, and digital converters multiplex signal can be made on the basis of the model elements of the micro-circuitry.

In Fig. 1 shows a structural diagram of the device.

In Fig. 2 presents a block diagram of block 6 of the transcoder.

In Fig. 3 presents a diagram illustrating the format of the multiplexed signal.

In Fig. 4 shows a block diagram of the regenerator multiplex signal (havlena structural block circuit 9 I / o multiplexed signal.

In Fig. 7 shows a structural block circuit 3 conversion control signals.

In Fig. 8 shows a structural block circuit 7 driver multiplex signal.

In Fig. 9 presents a block diagram of the block 14 conversion of subscriber signal.

Remote control and management of subscriber devices distributed network according to Fig.1 contains serially connected blocks 1 control and signalling analyzer 2 demultiplexing signals and the Converter 3 control signals, the output of which is connected to the first input of the control unit 4, the first output of which is connected to the display unit 5, an information output 2 control output 3 control unit 4 connected respectively to the inputs 1 and 2 of the transcoder 6, the first output of which is connected to the information input 2 unit 4 management, the second output of the transcoder 6 through the block 7 forming the multiplexed signal is connected to the first input unit 9 I / o multiplexed signal, the output of which through the Central regenerator 8 multiplex signal is connected to the output 3 of the transcoder, line inputs 1....M block 9 I / o multiplexed signal is in 11.1....11.N, the composition of each of which are connected in series peripheral regenerator 12 multiplex signal, the selector channels 13 and the conversion unit 14, the subscriber conclusions which is connected to the actuating mechanisms of technological equipment, vehicles or alarm system.

According Fig. 2 transcoder 6 is composed of series-connected generator 15 and the counter 16, the first output of which is connected to the first input of the multiplexer 17, the second output of the counter 16 is connected to a second input of the trigger 18, and the third output of the counter 16 is connected to the second input of the register 19, and the output of the trigger 18 is connected to the input of the generator 15, and the first input of the trigger 18 is the third input of the transcoder 6, second and third inputs of the multiplexer 17 are respectively first and second inputs of the transcoder 6, and the output of the multiplexer 17 is a second output of the transcoder 6, the third input of the multiplexer 17 is connected to the first input of the register 19, the output of which is the first output of the transcoder 6.

According Fig. 4 each regenerator 12 multiplex signal contains a series-connected unit of input lines and protection 20, the correction amplifier 21, a comparator 22 and bikeway frequency, the first and the second output of which is connected respectively to the second input of the comparator 22 and the second input unit 24 pulse shaping, the input unit 20 of the input lines and protection is the input of the regenerator, and the output unit 24 is the output of the regenerator.

According Fig. 5, the control unit 4 comprises the following blocks: long-term memory (DZU) 25, a random access memory (RAM) 26, a manual command input (keyboard) 27, a processor 28, a standard interface Gentroniks 29 and interface control signals 30.

According Fig. 6 block 9 I / o multiplexed signal consisting of M sets, each containing two blocks diagnosising devices 31 and two linear transformer 32 each.

According Fig. 7 Converter 3 control signals includes sequentially connected blocks differentiation 33.

According Fig. 8 shaper multiplex signal 7 contains serially connected filter the transmitter clock frequency 38, the phase shifter 39, the amplifier-limiter 40 and the pulse shaper 41, and the input amplifier inverting phase 42, the input amplifier without inversion phase 43, the outputs of which are connected respectively to the inputs panevova signal 46.

The block selector channels 13 selects from the group of the digital signal of the digital stream, which is designed to transmit control signals to one of the peripheral actuators.

Structural block circuit diagram of the selector channels 13 corresponds to the block diagram of the hardware time-division channels of DSPS is described in the book of L. S. Levin and M. A. Plotkin, "Digital transmission systems". - M.: Radio and communication, 1982, page 87, Fig.3.24.

Converter subscriber signal 14 is used to convert the output signal of the selector channels 13 in the form required for normal operation of subscriber devices connected to the peripheral unit 11.

Converter block diagram of a subscriber signal 14 shown in Fig. 9. The unit 14 includes serially connected buffer amplifier 47, the trigger 48 and 49 key, 2 of which provides the supply voltage of the subscriber device. The output unit 14 is a dial input peripheral unit 11.

The device operates as follows.

The management and control of the technological system, vehicle alarm system, etc. are part of CNY exchange of control signals and control. Transmitted from this unit, control signals are sent to the analyzer demultiplexing signal 2, which converts analog signals into signals with normalized amplitude and shape, to ensure the normal operation of the Converter control signals 3, which is the terminal device control unit 4. Commands received from the output of the control unit and alarm system 1 through the signal analyzer 2 is written into the memory control unit 4, are displayed in the display unit 5, then the control unit 4 generates data signals and the control signal, which is then passed to the transcoder 6.

The transcoder 6 is designed to generate temporal spectrum of the signal of one channel of a multiplex communication system operating in two-wire mode, which allows substantially free the CPU of the control unit 4 from unproductive work. The transcoder 6 is composed of (Fig. 2) the following units: generator 15, a trigger 18, the counter 16, the multiplexer 17 and the register 19. The first four nodes represent the scheme of formation of the multiplex signal. The register 19 is used to capture the return channel, i.e. accept signalen, the generator 15 is blocked, the circuit is in the idle state. The control unit 4 sets the bits of the transmitted information, and generates a pulse that includes a trigger 18. Which results in starting the generator 15 and the counter 16 counts down the seven periods of the frequency generator. At the eighth clock cycle to reset the trigger and the counter itself. The scheme passes to its original state. The outputs of the counter control address inputs of the multiplexer 17. The information inputs of the multiplexer 17 is connected to a logical "0", "1" and the data signal control unit 1 in such a way that provides the necessary timing diagram (Fig. 3). Fixing information back channels in register 19 is in the sixth cycle of the generator. The information in the register 19 is stored until the next cycle and can be read at any time. The state of the trigger 18 that determines the readiness of the circuit for the next cycle, can be set programmatically. The clock frequency produced by the generator 15, is introduced in the time spectrum of the signal after the information bits and is also 8 bits, then the cycle signal is repeated.

The signal thus includes the address of the command, the command itself and the clock frequency, while in the intervals between the transmission of information from the control unit and alarm 1.

The output of the transcoder 6 is fed to the input unit 7 forming the multiplexed signal, the function of which is the formation of a pulse signal with amplitude and pulse shape, provided in the technical requirements on the communication line 13. From the output of the unit 7, the signal received at the input unit 9 I / o multiplexed signal, which performs two tasks connect to the M-unit communication lines 13, which performs the functions of the amplifier valve.

The multiplexed signal transmitted via the communication line 13, then flows to the inputs of the regenerators 12 peripheral blocks 11 system, and each connection line 13 can be connected N peripheral blocks. Included in the peripheral blocks of the regenerators ensure restoration of the amplitude, shape and timing taken from the line digital multiplex signal, and the transmission line, digital signal formed in the peripheral unit 11. Signals from the peripheral units through the communication line, proceed to the linear input unit 9 I / o multiplexed signal and further to the Central regenerator 8 multiplex signal. The function of the regenerator is also restoring the amplitude, shape and fremstilling signal. The recovered signal at the input 2 of the transcoder 6 is converted into a form that meets the requirements of the interface unit 4, and is supplied with the output of the transcoder 1 6 2 control unit 4. In unit 4 the received signal is decoded, stored and displayed on the display unit 5 display.

Thus, the proposed device allows you to organize operational control of various process equipment, alarm systems, vehicles, using as a medium of two-wire transmission line or a single transmission channel (e.g., optical fiber), i.e. to halve the volume and cost of the communication line while increasing system reliability. Using a typical PC can make the system versatile and also increases the reliability of its work.

Remote control and management of subscriber devices distribution networks containing the display unit, the control unit and alarm, driver multiplex signal and a number of peripheral blocks that are connected in series selector channels and the transducer block signal, characterized in that it introduced sequentially soedinenii the analyzer input demultiplexing signals coupled to the output control unit and alarm, the input display unit connected to the first output control unit, the transcoder connected first and second inputs respectively to the second and third outputs of the control unit, the second input is connected to the first output of the transcoder, the Central regenerator, block I / o multiplexed signal, the output of which is connected through the Central regenerator multiplexed signal to the third input of the transcoder, the second output of which through the shaper multiplexed signal connected to the first input of the block I / o multiplexed signal, and each peripheral block peripheral entered the regenerator multiplexed signal, station entries each of which is connected to the selectors, channels, and line inputs via the multiplex communication line connected to the line terminals of the block I / o multiplexed signal.

 

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