RU81352U1 - DATA TRANSMISSION UNIT - Google Patents

Abstract

This technical solution relates to the field of digital computing and data transmission, namely, to devices for interfacing digital computers with short-wave and ultra-short-wave radio stations.

The block of data transmission equipment (hereinafter referred to as the block) is intended for the exchange of electronic code computer (telecom) information with radio channels of communication organized by ultra-short-wave radio stations, switching of speech signals of radio stations to a microphone-telephone headset (MTG) from a radio station.

The unit includes a satellite navigation receiver.

The interaction of the unit with the computer is carried out via the RS-232C interface (GOST 18145-81, GOST 23675-79).

The interaction of the data transmission equipment (APD) of the unit operating according to the algorithm of the T-235-1L (BI) equipment with radio stations is carried out at the junction of C1-FL (GOST 27232-87).

The interaction of the data transmission equipment of the unit, operating on the basis of the T-235-1L (FM) equipment algorithm, and the equipment, operating on the ASPD-U algorithm, with radio stations is carried out through the ICF microphone circuit and the TLF telephone circuit.

Structurally, the unit is a sealed compartment on which external connectors are located for connecting radio stations, an antenna unit, a Baguette-44 computer, a KPS wire communication box, an MTG microphone-telephone headset, an AB battery box, as well as toggle switches to turn on power, charge AB, connecting KPS and three LEDs.

Modules are fixed inside the unit: functional - EM1 data transmission equipment, K-161 receiving and measuring module and EM2 secondary power supply module.

Description

Technical field

This technical solution relates to the field of digital computing, namely, to devices for interfacing digital computers with short-wave and ultra-short-wave radios.

State of the art

An analogue of this technical solution is the COMPLEX OF EQUIPMENT FOR TRANSMISSION OF DATA BY COMMUNICATION CHANNEL (utility model certificate RU No. 27286 U1, announced on November 19, 2001, published on January 10, 2003, bulletin No. 1) containing a personal electronic computer (PC) ), special equipment (CA) for encoding-decoding information and a modem, the first inputs and outputs of which are connected to a telephone communication channel, characterized in that the complex contains a single-channel interface adapter C2-SPEC (AC C2-SPEC-1), the first input is the output of which is connected to the slot PC system bus, and the second and third inputs and outputs, respectively, with the inputs and outputs of the joint C2-SPEC (RCD) and the control joint (PU), special equipment (SA), a modem interface device (USM), the first inputs and outputs of which are connected with inputs and outputs of special equipment, and the second inputs and outputs (MODEM) with the second inputs and outputs of the modem.

The disadvantage of the analogue is the low efficiency of using the performance of the communication channel for data transmission.

The next analogue of the claimed technical solution is the MOBILE COMPLEX OF EQUIPMENT FOR PROCESSING AND TRANSFER OF DATA BY COMMUNICATION CHANNELS (certificate for utility model RU No. 27244, declared January 28, 2002, published January 10, 2003, bulletin No. 1) containing automated workstations based on personal computers compatible with IBM PC, and personal computer of the transport station compatible with IBM PC, interface adapters C2-SPEC single-channel (AC C2-SPEC-1), the first groups of inputs of which are connected to the slots of the PC system bus, sets of special equipment (CA) for encoding-decoding information, the first group of inputs and outputs of which are connected to the second group of inputs and outputs of the adapters of the interface C2-SPEC single-channel (AC C2-SPEC-1), a telephone, characterized in that the mobile complex further comprises a digital channel multiplexer, two groups the inputs and outputs of which are connected respectively with the second groups of inputs and outputs of special equipment (SA), the third

a group of inputs and outputs with inputs and outputs of the telephone, the fourth and fifth groups of inputs and outputs are connected respectively to digital channels of closed data transmission (radio relay channel and physical line).

The disadvantage of this analogue is the low efficiency of using the performance of the communication channel for data transmission.

The closest analogue (prototype) of the claimed technical solution is the TRANSMISSION CHANNEL UNIT (patent for utility model RU No. 40577 U1, application No. 2004114134/22 of 05/11/2004, IPC Н04J 1/00, Н04К 1/00, Н04В 3/00 , 5/00, G06F 13/00, published September 10, 2004, bull. No. 25), containing:

1) interface block C2-SPEC (OST V4.127.007-81), the first group of external inputs and outputs of which, in accordance with the C2-SPEC interface, is used to connect special communication equipment T-240PD, a digital channel multiplexer unit BMTSK, the first input of which is connected to the second output of the C2-SPEC interface unit, the BSUPD transmitter synchronization and control unit, the first output of which is connected to the second input of the BMTC digital channel multiplexer unit, the BDMCC digital channel demultiplexer, the first output of which is connected to the second input of the interface unit ISA C2-SPEC, specifying a 3G generator, the first output of which is connected to the first input of the BSUPD transmitter synchronization and control unit, BSUPM receiver synchronization and control unit, the first input of which is connected to the second output of the 3G driving generator, and the first output - with the first input of the demultiplexer block digital channels BDMTSK, interface block C2 (Y8-232) (GOST 18145-81), the first group of inputs and outputs of which are used for external connection to a tone frequency modem, an RF modem or a converter of the main digital channel OTsK, different that the combiner of data transmission channels additionally contains the first and second blocks of the C1-FL-BI interface (GOST 27232-87), the first groups of inputs and outputs of which are used for external connection of the first and second sets of T-230 equipment, respectively (1, 2), the second output of each is connected respectively to the second and third inputs of the block of the multiplexer of digital channels BMCC, and the second input of each is connected respectively to

second and third outputs of the digital channel demultiplexer unit BDMCC, the first and second block of automatic BAVR mode selection, the first input of which is connected respectively to the third output of the first and second blocks of the C1-FL-BI interface, the first output is connected respectively to the second and third input of the synchronization unit and BSUPD transmitter control, and the second inputs - with the second output of the BSUPD transmitter synchronization and control unit, automatic BAVLS linear speed block, the first and second outputs of which are connected respectively only with the second output of the C2 interface unit (KZ-232) and the second inputs of the BSUPM receiver synchronization and control unit, and the four inputs, respectively, with the second output of the C2 interface unit (RS-232), the output of the BMTC digital channel multiplexer unit, and the third output of the synchronization unit and control of the BSUPD transmitter and the third output of the master oscillator, the built-in test mode unit БУТР, the first and second input-output of which is connected respectively to the input-output of the BMTC digital channel multiplexer unit and the demultiplexer unit and the digital channels BDMTSK, a unit for displaying the current state of the BUOTS, two inputs of which are connected respectively to the fourth output of the BSUPD transmitter synchronization and control unit and the second output of the BSUPM receiver synchronization and control unit;

2) a loop synchronization decoder and a digital phase-locked loop PLL, the inputs of which are connected to the second input of the block, a synchronization hold circuit, the first input of which is connected to the first output of the loop synchronization decoder, a clock search circuit, the input of which is connected to the output of the loop synchronization decoder, and the first output is with the second input of the synchronization hold circuit, a synchronization indication circuit, the first input of which is connected to the output of the synchronization search circuit.

The disadvantage of the prototype is a different functionality that does not allow to realize the required technical specifications in full.

Utility Model Essence

The known block of data transmission equipment contains a PRM receiver T-235-1L and a transmitter PRD T-235-1L, the input of the receiver and the output of the transmitter are connected respectively to the first output of the interface C1-FL and the first input of the interface C1-FL of the radio station PC1, the second receiver of PRM T -235-1L and the receiver PRM ASPD-U, the inputs of which are connected to the output of the joint C1-TCH of the radio station RS1, the third receiver PRM T-235-1L and the second transmitter PRD T-235-1L, the input of the receiver and the output of the transmitter are connected respectively to the output and the input of the C1-FL junction of the RS2 radio station, the third T-235-1L PRD transmitter and before APD-ASPD-U transmitter, RS-232C interface signal controller, four inputs and four outputs of which are connected respectively to the output of four PRM receivers and four PRD transmitters, and the RS-232C controller input-output is connected to the output-input of the Baguette electronic computer -44 ", the secondary power supply of the VIP, the input of which is connected to the output of the battery, and the output with power inputs of all nodes of the unit.

The purpose of this technical solution is to expand the functionality, creating a compact mobile product with minimal weight and size characteristics and energy consumption.

The data transmission equipment block further comprises a switch, the two inputs of which are connected respectively to the outputs of the fourth T-235-1L PRD transmitter and the ASP-U PDT transmitter, the RS-232C interface signal switch, the first input-output of which is connected to the second output-input of the RS controller -232C, the second input-output with the output-input of the MTG microphone-telephone headset, the third, fourth and fifth input-output are connected respectively to the output-input of the PC1, PC2, PC3 radio stations, the command-and-communication communication switch OKS, the first input of which is Din with the fifth output of the RS-232C controller, the second input with the output of the switch, the first input-output with the second output-input of the MTG, the third, fourth and fifth inputs are connected respectively to the outputs C1-PM of the radio stations PC1, PC2 and PC3, three outputs are connected respectively with the inputs of the radio stations PC1, PC2 and PC3, a satellite navigation receiver,

the input-output of which is connected to the second output-input of the computer "Baguette-44", and the output to the input of the antenna unit.

List of figures, drawings and other materials

Figure 1 shows a structural diagram of a block of data transmission equipment

An example embodiment of the device

On the structural diagram of a block of data transmission equipment (figure 1) are indicated:

1 - satellite receiver SN K-161, 2 - controller interface RS-232C, 3 - receiver PFP T-235-1L, 4 - transmitter PPR T-235-1L, 5 - receiver PFP T-235-1L, 6 - PRM receiver ASPD-U, 7 - PRM receiver T-235-1L, 8 - transmitter PRD T-235-1L, 9 - transmitter PRD T-235-1L, 10 - transmitter PRD ASPD-U, 11 - RS-interface switch 232C, 12 - switch of the operational-command communication OKS, 13 - secondary power supply of the VIP, 14-switch.

The circuit also shows the connection circuits of the unit: 15 - to the antenna unit, 16 - to the Baguette-44 computer of the SN receiver, 17 - to the Baguette-44 computer via the RS-232C interface, 18 - to the MTG microphone-telephone headset via the interface RS-232C, 19 - to MTG via circuits for operational-command communication of the ACS, 20 - to the AK battery, 21 - to the radio station PC1 and 22 - to the radio station PC2 along the connection circuits C1, 23, 24, 25 - respectively to the radio station PC1 , PC2, PC3 on the RS-232C interface circuits, 26, 27 - respectively to the RS2 and PC3 radio stations on the joints C1, 28, 29, 30 - respectively to the PC1, PC2 and PC3 radio stations on the opera chains tively-command connection 31 - the power supply voltage of the secondary unit to the nodes.

The block of data transmission equipment (hereinafter referred to as the block) provides the exchange of telecode and voice information with radio channels organized by R-168-0.5 MKM radio stations, switching voice signals from MTG radio stations (from the R-168-0.5MKM radio station).

The unit includes a satellite navigation receiver.

The unit interacts with a computer via the RS-232C interface (GOST 18145-81), the electrical parameters of the RS-232C interface signals comply with the requirements of GOST 23675-79.

The interaction of the data transmission equipment of the unit, operating according to the algorithm of the T-235-1L (BI) equipment, with radio stations is carried out at the junction of C1-FL (GOST 27232-87).

The interaction of the data transmission equipment of the unit, operating according to the algorithm of the T-235-1L (FM) equipment, and equipment, operating according to the ASPD-U algorithm, with radio stations is carried out through the MKF, TLF circuits.

Structurally, the unit is a sealed compartment on which external connectors are located for connecting radio stations, an antenna unit, a Baguette-44 electronic computer, a KPS wired communication box, an MTG microphone-telephone headset, an AB battery box, and toggle switches for switching on power supply, battery charge, connecting KPS and three LEDs.

Inside the unit are fixed electronic modules (EM1, EM2, receiving module K-161).

The unit under operating conditions refers to the equipment of group 1.10 according to GOST RV 20.39.304-98 with the following restrictions:

- increased working temperature of the medium - plus 50 ° C;

- extreme elevated temperature of the medium - plus 60 ° C;

- reduced working temperature of the environment minus 40 ° C;

- extreme low temperature minus 50 ° C.

Block P913 consists of the following functional units:

- satellite navigation receiver;

- ADF module;

- RS-232C controller;

- RS-232C switch;

- switch operational command communication (ACS);

- secondary power supply module.

As a satellite navigation receiver, the GLONASS / GPS “K-161” TSUI.468157.109 receiving-measuring module for space navigation systems is used.

The main technical characteristics of the module are given in table 1.

Table 1 - Technical characteristics of the receiving module Name of characteristic Unit Value measuring and tolerance Average time of first determination: from with a "warm" start (there is everything initial data) 50, no more at cold start (no part source data) 150, no more Exchange Protocol - BINARY Maximum exchange rate Bps 38400 interface information RS-232C Supply voltage AT 3.1-3.6 Consumption current mA 420, no more Weight kg 0,1, no more Ambient temperature: ° C extreme increased 85, no more working elevated 55, no more working low minus 40, not less extreme low minus 60, not less

The module provides:

- reception and processing of radio signals of standard accuracy in the L1 frequency range of satellite radio navigation systems SRNS GLONASS (Russia) and / or GPS (USA), coming through the antenna of the navigation receiver of the product;

- automatic selection of service information from the received radio signals of the SRNS;

- automatic tracking of the received SRNS radio signals and determination of the current navigation parameters of the antenna location point of the navigation receiver of the product in the Gauss-Kruger system and the exact value of the current time;

- automatic reception of commands from the computer and automatic exchange of current information with the computer via the RS-232C interface in the Binary format.

For communication with a computer, the first channel of the RS-232C module is used.

The ADF module includes transceiver nodes:

receiver - PRM T-235-1L (BI) - 2 pcs.;

transmitter - PRD T-235-1L (BI) - 2 pcs.;

receiver - PRM T-235-1L (FM) - 1 pc.;

transmitter - PRD T-235-1L (FM) - 1 pc.;

receiver - PFP ASPD-U (OFM) - pcs .;

transmitter - PRD ASPD-U (OFM) - 1 pc.

The main functional elements of the ADF module that implement the operating algorithms of the T-235-1L and ASPD-U equipment and modulate the transmitted signals (bi-pulse BI, FM frequency modulation, relative phase modulation OFM) are located in three programmable logic integrated circuits (FPGAs) of the EM1 module , the configuration data of which is stored in two read-only memory devices of the ROM of this module and is automatically loaded into the FPGA when the power is turned on.

When transmitting information, the length of the input from the computer to the codogram block depends on the type of ADF.

The ADFs of the T-235-1L (BI) and T-235-1L (FM) types work with 69-bit codograms, while 53 bits of the codogram are received from the computer, while the remaining bits of the codogram are generated by the transmitter encoder.

Each codogram issued by the transmitter Tx-235-1L (BI) is subjected to bi-pulse coding.

The individual elements of each issued T-235-1L PRM (FM) codegram are converted into frequency-modulated signals. The symbol "0" is transmitted by a signal with a frequency of 2100 Hz, the symbol "1" is transmitted by a signal with a frequency of 1300 Hz.

Operation code, transmitter number, ADF operation mode are set by the computer.

In the “one-way or simultaneous two-way channel” mode, OK ОДК-1, if there is no data in the transmit buffer to transmit by the time the current codeogram is completed, the transmitting code sends a “silent” code to the channel, thereby supporting channel synchronization.

In OK mode, ОДК-2, if there is no data in the buffer to transmit by the time the current codeogram is finished issuing, the PRD stops transmitting data to the channel, the radio station is put into receive mode.

In any mode (OK ОДК-1 and ОК ОДК-2), the switch-off of the PRD and the transfer of the radio station to the reception mode are carried out by a command from the computer.

The ASPD-U type ADF works with 40-bit codograms, and 36 bits of codogram are received from the computer, the remaining 4 bits of the codogram are a correction code and are generated by the transmitter.

To increase the reliability of information transfer to the PRD, a two-time transmission of each codogram is used. In the PFP receiver, a bitwise comparison of each subsequent codogram with the previous one occurs. If errors are detected (at least one bit does not coincide), an error is recorded in the codogram in the PFP.

The operation mode of the ADF type ASPD-U with a one-time transmission of each codogram is possible. In this case, the PFP blocks the comparison of each subsequent codogram with the previous one. The mode "One-time / two-time transmission" is set by computer software.

The generated codogram for the C1-FL junction circuits or for the MKF microphone circuits is transmitted to the radio station.

Radio control circuits for signals generated by FPGA logic circuits, if necessary, transfer the radio station to transmission mode, form and give out a low signal level through the TG-C or TG-A circuits.

When receiving information from a radio station at the junction of C1-FL in PFP T-235-1L (BI), a bi-pulse signal is demodulated. Status information (error presence, loop sign, type of operation) is added to the codogram received from the radio station and the received codogram is transmitted to the RS-232C controller for delivery to the computer.

The information received from the radio station via the TLF circuit, after stabilization of the amplitude of the input signals, is passed through bandpass filters tuned to the carrier frequency of 1873 Hz in the PFP ASPD-U, and to the frequencies of the standard tone channel in the P-T-235-1L (range from 0.3 kHz to 3.4 kHz), then converted into digital signals with TTL logic levels and fed to the FPGA input.

In FPGA, the received signal is fed to the nodes of the receiver of the ASPD-U equipment and the receiver of the T-235-1L (FM) equipment.

PFP ASPD-U (OFM) and PFP T-235-1L (PM) perform demodulation of frequency-modulated signals received from the radio station. After restoring the digital sequence and decoding the received codogram, a codogram is formed for delivery to the computer through the RS-232C controller.

The simultaneous operation of PFP ASPD-U (OFM) and PRMT-235-1L (PM) is not possible.

In the product at the same time can be included no more than two PFP and no more than two PFP ADF module. Product configuration (types of included PfP and PfP, their quantity, operating modes) are determined by the sources and consumers of information, i.e. determined by the automated control circuit of the system in which the product is used. The data of the automated control circuit of the system are entered into the Baguette-44 computer when setting up the product.

The types of included PFP and PJM of the ADF module, their operation modes, depending on the type of mating product, are shown below in table 2.

table 2 Type of mating product ADF in P913 APD operation algorithm Bit rate, bps Operating mode (for T-235-1L) Type of modulation PRD PfP 9S931.9S931-1, 9S932.9S932-1 T-235-1L ASPD-U 2400 234; 468 OK-ODK2 BI
OFM +
- +
+ 9C911.9C912 T-235-1L T-235-1L ASPD-U 1200 2400 234; 468 OK-ODK1 OK-ODK1 World Cup
BI
OFM -
-
- +
+
+ 9С80-1,9С80М, 9С80М1 T-235-1L ASPD-U 1200 234; 468 OK-ODK1 World Cup
OFM -
- +
+ 9C935.9C935-1 T-235-1L 2400 OK-ODK2 BI + + 1L110-2 T-235-1L 1200 OK-ODK1 World Cup + - 1L15 ASPD-U 234; 468 OFM + -

A computer in accordance with a given configuration of the product through programmable registers of the ADF module controls the operating modes of the PFR and the PFD (sets the exchange rates, transmission levels, the mode of blocking erroneous codograms, the loop mode, etc.), enables the receivers and the necessary systems transmitters.

In the FPGA, the RS-232C controller receives information from the computer via the RS-232C interface and writes it to the PRD buffer for transmitting to the subscriber information for setting the operating modes of the PRM and the PRD of the ADF module, and checking the correctness of this information. When receiving information from subscribers, the RS-232C controller reads information from the PFP by the readiness of information from the PFP. If necessary (when changing the state of any PfP or Pfd), the RS-232C controller organizes the issuance of the contents of the status register of the ADF module to the computer.

The ACS switch, the RS-232C switch are designed for switching voice messages, control signals of product radio stations. The management of the switches is carried out programmatically from a computer through the programmatically accessible switch control register of the ACS command-and-control switch. The computer also displays on the monitor screen information about which radio station is currently connected to the MTG, and from which radio station the call is being received.

The radio-electronic elements of the functional units of the block (RS-232C controller, ADF module, RS-232C switch, ACS switch) are located on EM1 boards.

The power supply of the unit nodes is carried out from the built-in module of the secondary power supply EM2, which generates the following output voltages from the 10NMGTs-2.5 rechargeable battery connected to the unit: 3.3 V, 5 V ± 0.2 V; 12 V ± 0.4 V; minus 12 V ± 0.8 V.

The power to the unit is turned on using the PIT toggle switch located on the unit body. At the same time, secondary power supply modules MDM7.5-1A3.3MU, MDM 7.5-1A05MU and MDM 7.5-2A1212MU, forming output voltages of 3.3 V, 5 V, are included in EM2; 12 V; minus 12 V.

EM2 provides a charge and status indication of the battery connected to the unit (voltage 12 VA): discharged - UAB = (10.5-11) V; there is a battery charge. When the battery reaches a voltage charge (14.5-15) V, the ZAR indicator goes out.

The status indicators AB Razr and ZAR are structurally not included in the EM2, they are located on the block body.

The ISPR indicator is intended to indicate the status of the unit and should glow after turning on the PIT toggle switch.

The TK toggle switch with the provisions of “PC” / “KPS” is designed to differentiate the reception of PM signals coming to the unit from the radar source through the PC1 radio (the toggle switch is in the “PC” position) or by wire through the wire communication box (the toggle switch is in the "KPS" position).

Industrial applicability

This technical solution is industrially feasible, has the necessary functional characteristics, weight and size parameters, low power consumption, compact, adapted for use in the field.

Claims (1)

A block of data transmission equipment containing a PRM receiver T-235-1L and a transmitter PRD T-235-1L, the input of the receiver and the output of the transmitter are connected respectively to the first output of the C1-FL junction and the first input of the C1-FL junction of the RS1 radio station, the second PFP T receiver -235-1L and the receiver PRM ASPD-U, the inputs of which are connected to the output of the joint C1-TCH of the radio station RS1, the third receiver PRM T-235-1L and the second transmitter PRD T-235-1L, the input of the receiver and the output of the transmitter are connected respectively to the output and the input of the C1-FL junction of the RS2 radio station, the third T-235-1L PRD transmitter and the TSA PRD transmitter D-U, RS-232C interface signal controller, four inputs and four outputs of which are connected respectively to the output of four PRM receivers and four PRD transmitters, and the input-output of the RS-232C controller is connected to the output-input of the Baguette-44 computer ", The secondary power supply of the VIP, the input of which is connected to the output of the battery, and the output with power inputs of all nodes of the unit, characterized in that the unit further comprises a switch, two inputs of which are connected respectively to the outputs of the fourth transmitter as the T-235-1L PRD and the ASP-U transmitter, the RS-232C interface signal switch, the first input-output of which is connected to the second output-input of the RS-232C controller, the second input-output with the output-input of the MTG microphone-telephone headset , the third, fourth and fifth input-output are connected respectively to the output-input of the radio stations PC1, PC2, PC3, the command and control switch OKS, the first input of which is connected to the fifth output of the RS-232C controller, the second input to the output of the switch, the first input output with a second output-input MTG, the third, fourth and fifth the inputs are connected respectively to the outputs C1-PM of the radio stations PC1, PC2 and PC3, the three outputs are connected respectively to the inputs of the radio stations PC1, PC2 and PC3, the receiver of the satellite navigation system, the input-output of which is connected to the second output-input of the Baguette-44 computer, and the output with the input of the antenna unit.