SU1336078A2 - Multichannel transmitting telemetering device - Google Patents

Abstract

The invention relates to the field of telemechanics and can be used for organizing remote access of terminal devices to computer systems. The aim of the invention is to increase the speed of information transfer. To achieve this goal, the device eliminates the conversion of a parallel computer code into a serial one due to the use of orthogonal signals. The signaling of the computer signals by the Walsh functions is carried out by switching units that connect the inputs of the manipulators to the outputs of the generator of orthogonal signals. 1 il. oo oo oi 00

Description

The invention relates to telemechanics, can be used for organizing remote access of terminal devices to computer complexes and is an improvement of the known device according to the author. St. No. 392544.

The purpose of the invention is to increase the speed of information transfer.

The drawing shows a diagram of the device.

The device comprises an orthogonal signal generator 1, a shaper 2 clock pulses, delay elements 3 and 4, a reset unit 5 in each quantization scheme, a memory block 6, elements 7 and 8, a channel signal adder 9, a linear unit 10, a switch 11, the first 12 and second 13 switching units, second impulse handlers 14, shapers 15 information signals, amplifiers 16, OR elements 17. Information channels contain elements 11-17.

The device works as follows.

In order to provide a mode of remote access to a computer of a transmitting multichannel telemetry device, switch 11 at its second output generates an enable signal, which is fed to the second inputs of switching units 13, the first inputs of which receive channel signals from the outputs of generator 1 of orthogonal signals. These signals through the second switching unit 13 arrive at the first inputs of the pulse manipulators 14, the second inputs of which receive signals from the outputs of the drivers 15i-15 of the interface signals of the common bus of the source of the computing complex. These signals carry information about the state of the common bus interface of the source of the computing complex, and, consequently, information of the exchange between the source and the receivers of the computing complex. Each driver generates an output signal, depending on the state of the common bus interface, the control signals for them are the signals produced by amplifiers 16, the inputs of which are fed directly from the common bus interface of the computer. At each output of the pulse manipulators 14, at each integration period, the output signals of the generator 1 of the orthogonal signals are formed. These signals through the elements OR 17 are fed to the corresponding inputs of the adder 9 channel signals, the output of which forms a signal of complex shape.

The output waveform of the adder 9 uniquely identifies and carries information about the state of the interface of the common bus source of the computing complex, i.e., the shape of the output sum signal is determined

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It is a parallel code pattern of a common computer bus interface.

From the output of the adder 9 channel signals, the sum signal is fed to the input of the linear unit 10, and then to the communication line. In this case, there is no conversion of the parallel interface code of the source of the computing complex to serial, i.e. transmission of information with the compression of channel signals to the form eliminates the need for such conversion and involves transmitting the parallel source code of the common bus interface via a two-wire communication line. In addition, the use of orthogonal codes as information carriers determines the high noise immunity of its transmission. Eliminating the conversion of the parallel source code of a common bus interface of a computer complex to a serial one allows reducing the time of information exchange between remote terminal devices and the computer complex.

In the case when the switch 11 generates a resolution signal at its first output, and at the second a inhibit signal, the signal is generated only at the outputs of the first switching blocks 12, which are fed to the first inputs of the OR elements 17, to the channel signal adder 9 and through the linear block 10 line of communication. In this mode, the second switching unit 13 is closed and disables additional devices from the main circuit, i.e. the mode of operation of remote access to computer complexes is prohibited.

The output signals of the computer system source, consisting of information, service and synchronization signals, from the interface of the common computer bus arrive at the corresponding inputs of the amplifiers, which match the output stages of the common interface interface with the input of the information signaling drivers 15. The formers consist of D-trigger cells that store the previous interface states of the common bus of the source of the computing complex.

From the outputs of the signal drivers of the interface of the common bus of the source of the computing complex, the signals arrive at the first inputs of the manipulators 14, the second inputs of which through the blocks 13 of the switching receive signals from the output of the generator of orthogonal signals.

In the mode of remote access to the computer of a transmitting multi-channel telemetry device, a resolution signal is present at the first inputs of the second switching unit 13, which allows the output signals from the orthogonal signal generator to pass to the corresponding inputs of the manipulators 14. At the outputs

 the latter forms a parallel code combination, which is an orthogonal code, i.e., only those outputs of the channel signal handlers form the output signals of the orthogonal signal generator, the first inputs of which receive signals from the formers 15. The manipulated signals of the orthogonal signal generator arrive at the first inputs the elements of OR 17, whose outputs have a parallel orthogonal code combination consisting of signals whose mathematical models are orthogonal Walsh function, is fed to the input of the channel signal adder.

In case the resolution signal arrives at the second inputs of the first switching unit 12, the output signals of the orthogonal signal generator modulated in amplitude through the first switching unit 12 are fed to the first inputs of the OR elements 17 and further to the adder.

The invention eliminates the conversion of the parallel source code of the computing complex to serial for transmitting information over the communication line to the receiver of the computing complex, i.e., in this case, the parallel code combination is converted into a complex sum of orthogonal signals, which leads to an increase in the speed of information exchange. This form of the output sum signal uniquely determines the state of the parallel code pattern of the source interface of the total computer complex. Consolidation of channel signals in a form in itself implies parallel transmission of all channel signals. In addition, the use of orthogonal codes as information carriers greatly benefits in terms of noise immunity with respect to other types of information transmission.

Claims (1)

Invention Formula 0 five Transmitting multichannel telemetry device according to aut. St. No. 392544, distinguished by the fact that, in order to increase the speed of information transfer, information channels are entered into the device, each of which contains a switch, an OR element, a pulse manipulator, a driver of information signals, switching blocks, an amplifier, an amplifier input the information input of the device, the output of the amplifier through the driver of information signals is connected to the first input of the pulse manipulator, the output of which is connected to the first input of the element OR, the outputs of the switch are connected to The first inputs of the first and second switching units, respectively, whose outputs are connected to the second inputs of the OR element and the impulse switch, respectively, the outputs of the first and second switching units are connected respectively to the second inputs of the OR element and the impulse switch, each second input of the first switching unit and the outputs an OR element is connected between the output of the second AND circuit, the corresponding quantization scheme, and the corresponding adder input. five