RU2261530C2 - Unified shipboard communication system - Google Patents

Abstract

FIELD: radio electronics; organizing shipboard communications.

SUBSTANCE: system structure is organized in the form of k - 1 interconnected switches, where k is number of isolated shipboard rooms accommodating integrated communication centers, each being connected to all other centers through fiber-optic communication line; each integrated communication center has series-connected microprocessor, voice map, base radio station modem unit, modem and voice map control unit, N control units for current-limiting circuit breakers, N subscriber module control units, N "E1" junction boards, and data storages.

EFFECT: enlarged functional capabilities, enhanced reliability and survivability of system.

1 cl, 3 dwg

Description

The present invention relates to the field of radio electronics, and in particular to the technique of transmitting analog and discrete information, and can be used to organize intra-ship communications on ships, ships and other objects.

It is known "Device for loud-speaking duplex communication" (AS USSR No. 56810, class N 04 M 9/08). The device contains an electronic switch, a microphone, a loudspeaker, a transmission and reception amplifier, a control pulse shaper, a low-pass filter, a modulator, a demodulator, and other elements that form the receiving and transmitting paths.

It is known the "Speakerphone" (AS USSR No. 1125768, class N 04 M 9/08). The device contains switches, a microphone, a loudspeaker, an amplifier, and other elements and has a number of modifications in terms of capacity and application conditions.

The disadvantage of analogues is the significant dependence of the quality of information transfer on the length of subscriber lines, large hardware and cable redundancy, as well as low reliability and survivability.

Closest to the claimed complex in technical essence is the "System of intra-ship communication and broadcasting" (RF patent No. 2111168, 05/27/99, cl. 6 H 04 B 13/00). The system is intended for the organization of intra-ship loud-speaking and telephone communications, as well as for data transmission.

This system is a prototype, designed for the use of switching centers that are connected in series with each other by fiber-optic communication lines (FOCL), and they are connected to switches and consoles, blocks of cabin and cut-off loudspeakers, broadcast units and blocks of subscriber lines of telephone sets, ACs contain N transceivers and subscriber modules connected to the main and backup control buses and other information buses, while the input of the switches and consoles is connected to various CCs, and and the transmitter - with bus B2.

Such a system does not provide the integration of all ship services due to the specificity of the adopted circuitry and technical solutions and has a very limited subscriber capacity, low reliability and survivability.

The aim of the invention is to expand the functionality of the complex, increasing its reliability and survivability.

This goal is achieved in that the complex structure is made in the form of K-1 connected rings, where K is the number of isolated spaces of the ship in which integrated switching centers (ICCs) are installed, each of which is connected to all other fiber optic centers, while the ICCs consist of connected microprocessor, sound card, modem unit of the base radio station, modem and sound card control unit, N AU control units, N subscriber set cards and N E1 interface boards, as well as information storage devices, and control units The AU phenomena and the modem and sound card control unit are connected in parallel with the AU microcontroller, the subscriber kit cards are connected in parallel with the main and spare subscriber line of the switch of electro-acoustic devices and AU lines, moreover, the interface cards have N outputs of type “E1”, the sound card board is connected to the source broadcast art, the modem unit of the base radio station has N inputs of type ЕВМ, and the microprocessor has two Ethernet interfaces, two RS-232 ports and an interface - VSB, while the switch of electro-acoustic devices and lines A It is connected to the broadcast line and has inputs and outputs for electro-acoustic transducers (microphones, telephones, speakers, etc.)

The block diagram of a unified complex of intra-ship communication is shown in figure 1. It contains: Integrated Switching Centers (ICCs), each of which is connected to all other FOCL centers 2. Subscriber devices 3 are connected to each ICC 1, and electroacoustic transducers (not shown) are connected to subscriber devices 3.

The structural diagram of the ICC 1 is shown in figure 2. It contains: a processor 4, a sound card 5, a modem unit of a radio base station 6, a modem and sound card control unit 7, a subscriber unit control unit 8, a subscriber set card 9, a “K1” interface board 10, and information storage devices 11.

ICC 1 are designed to provide all types of communications, teams and broadcasts. The number of ICC 1 is determined by the class of the ship, the selected VKS system scheme, survivability and reliability requirements.

FOCL 2 are used to transfer data between ICC 1, linking them together, forming rings.

Subscriber devices (AU) 3 provide direct loud-speaking communication, automatic telephone communication, broadcasting, data and video information transmission.

The processor 4 is used to organize the computing process, for transmitting data and video information over the FOCL. Type of processor M1C 3377 D / M. M1C-3031 / 14-12P (industrial computer).

Sound card 5 is used to broadcast command information. The MIPMC processor type is 7440-000.

The modem unit of the base radio station 6 is used to organize radiotelephone communications inside the ship.

The control unit modem and sound card 7 is used to control the flow of information and operating modes.

The control units of subscriber devices 8 serve to control the AU and collect information from sensors. Type of processor (S108), 8 channels RS - 232/422, at the interface RS - 422/485, operating speed up to 12 Mbps.

Board subscriber kits 9 are used to convert analog information to digital (AG-2000C). Up to 24 analog telephone interfaces with call control and switching functions.

Boards of joints "E1" 10 are used to transmit voice information, speakerphone and data on "E1", data and video information on a local area network. (CG 6100C). Up to 16 E1 channels on the board have two 10/100 Base joints - T Ethernet.

The information storage device 11 is used to store software, as well as to download software and organize broadcasting. Name of drives NDD 2.5; FDD; SDROM DRIVE (for IHV).

Figure 3 shows the structural diagram of the subscriber device, it includes: 12 - a switch of electro-acoustic devices and lines, which provides control over the connection of electro-acoustic devices (microphones, headsets, loudspeakers, etc.) that are active in the current operating configuration of the AU , and also provides software-controlled switching from the ICC 1 for AL status (primary, backup).

13 - the microcontroller provides the implementation of the functions of visual control and control modes of two-way communication, circular call and conference calling.

14 - the display is used for: obtaining reference information, indicating the number of the telephone subscriber from whom the call is being received, indications of microphones and headsets used for transmission, etc.

15 - the dialer is used when working with the AU in the mode of establishing two-way telephone communication with dialing the full telephone number of the called subscriber.

16 - direct call buttons are used to select a subscriber in the process of establishing two-way telephone communication between subscribers equipped with AU.

AU is connected to ICC 1 with a two-wire subscriber line, which provides reception and transmission of voice information in all operating modes and a control line with an RS-485 interface, through which control signals are exchanged and interaction between AU and ICC 1.

The basis of the block diagram shown in figure 1, is a subsystem of transport communications, implemented by means of the ICC 1 and communication lines between them. On its basis (using its resource) there are five subsystems that provide services to subscribers and work to other subsystems of the complex:

- speakerphone subsystem (GHS);

- telephone communication subsystem;

- translation subsystem;

- data transmission subsystem;

- a subsystem for interfacing with external exchanges.

The functional structure of the complex includes the power supply and technical operation subsystems as subsystems ensuring its operation (not shown).

The work of the unified complex of intra-ship communications is as follows.

The intrabuilder communication network is a distributed switching network of digital communication channels with a bandwidth of 64 Kbit / s each. As switching equipment, ICC 1 located in the compartments of a ship is used. The connection between them is organized on the basis of pulse-code modulation of the primary channel channels “E1” with a group speed of 2048 kbit / s. In ICC1, user equipment is included, which in the CC of the videoconferencing system is represented mainly by AU and telephone sets (TA).

According to the information specified from the AU, the following types of videoconferencing are provided in the videoconferencing network:

- two-way telephone communication;

- a direct call between the AU of the ship's posts in the GHS mode;

- circular call (selective and general within a certain hierarchical group) in the GHS mode;

- group duplex conference calling, etc.

When a communication path of a certain type is formed with the TA and AU of the initiator of this communication, the following information is transmitted:

- a sign of the type of connection;

- user category;

- number of the called subscriber;

- Caller’s own number (it is determined in ICC 1 by identifying the TA and AU switching lines in ICC1).

In the case of initiating a connection from the TA, the sign of the type of connection and its category in CSC1 are determined by the correspondence of the subscriber line to the telephone. The specified composition of information on the AU-IKTs1 site is transmitted to the RS-485 interface modes.

Based on the received information, the software of ICC1 implements the processes (algorithms) of signal exchange between ICC1, the optimal path of establishing a connection is selected (i.e., switching the path as the final phases of the connection are positively used (i.e. checking the created path for integrity and answering the call subscriber).

The signal exchange between ICC1 is carried out by transmitting “3 out of 8” code combinations in the signaling channel allocated in path E1 (channel 16) in accordance with the accepted algorithm.

The channel signaling system of the videoconferencing network ensures the establishment of all types of videoconferencing, as well as the notification of ICC1 about the status of the E1 group paths included in each of them, which is the basis for the dynamic control of the routing of connections in the network.

Based on the information of the dynamic control of the program, INTs1 provides automatic bypass of damaged sections of the network and establishes communication through operable TSC1 and connecting lines 2 between them.

The connection establishment format (FCS) essentially represents the initial address message that is used in the formation of paths of all types of communication.

The type of communication, which should be implemented in the network based on the information of the FUS, is determined by the type of signal occupation. For a VKS FUS network, it consists of 9 bytes of signaling in the "3 of 8" code in the following form:

Ks A IN Xi X2 A IN X1 X2 1 2 3 4 5 6 7 8 nine

The value of the FUS bytes is as follows:

To _with - the priority category of the connection, determined by the assigned category AU, initiating the connection. According to preliminary estimates, the number of priority categories of subscribers in the VIS does not exceed three;

ABX1X2 - in bytes 2 ... 5 - four-digit number of the called subscriber;

ABX1X2 - in bytes 6 ... 9 - four-digit number of the called subscriber.

The FSF signal bytes are transmitted from one ICC1 to another via a dedicated signaling channel in the manner of an intervalless packet. In case of an intervalless transmission method, the two following format combinations that are identical next to each other can merge into one signal. To avoid this, when transmitting signals, the next identical combination is replaced with a REPEAT signal (SU 11 signal). At the receiving end, the signals are reversed.

Improving the reliability of the transmitted signal information is ensured by applying algorithmic procedures for confirming each signal (packet) of the forward direction with the corresponding reverse direction signal.

The block diagram of the CC VKS takes into account and provides the following requirements:

- none of the breaks in the communication lines leads to a loss of connectivity of the videoconferencing to the breakage of any of the AC;

- failure of any of the ICC1 does not lead to loss of connectivity of the structure of the videoconferencing and the breakage of any of the AC;

- failure of ICC1 and communication lines along one of the sides of the ship does not lead to loss of connectivity and breakage of intact ACs;

- failure of two communication lines located on two sides (not located in the same room) does not lead to a breakdown in the connectivity of the videoconferencing system.

Integration of the CC of the videoconferencing consists in the transition from the use of numerous direct connections between the AUs on the principle of "button-link" to a fully accessible highly reliable switched system that provides the specified characteristics of automatic connection. The joint use by all subsystems of the resource complex of the subsystem of transport communications, built on the basis of ICC1 and communication lines in the form of K-1 connected rings, solve the problems of optimizing the values of their throughput. Failure of any of ICC1 or any of the lines connecting ICC1 does not violate the connectivity of the structure when the AU is connected to two ICC1, violation of the structure will not lead to the loss of any connections between subscribers.

Using the inventive VKS complex allows you to expand the functionality of the equipment due to the additional radio communications inside the ship using radiotelephones, video information, data transfer and also ensure the efficient use of a transport network that combines all subsystems of intra-ship communications, while significantly increasing the reliability and survivability of the VKS complex.

Claims (1)

The unified intrabuilder communications complex, which includes integrated switching centers (ICCs) connected in series with each other by fiber-optic communication lines to which subscriber units (AU) are connected, characterized in that the complex structure is made in the form of kI connected rings, where k - the number of isolated premises of the facility in which the ICCs are installed, each of which is connected to all other centers via fiber-optic communication lines, to which the AU are connected via two-wire to bondent communication lines, while the ICCs contain a microprocessor, a sound card, a modem unit of a radio base station, a modem and sound card control unit, N AU control units, N subscriber module boards and N E1 interface boards connected by a transceiver line to the information storage device wherein the AU contain a switch of electro-acoustic devices and lines, a microcontroller, as well as direct call buttons, a display and a dialer, which are parallel connected to the microcontroller, moreover, the control units of the AU and the modem and sound card control unit are connected to the AU microcontroller at the RS-485 interface, and the subscriber module boards are connected via the two-wire subscriber line to the main and spare subscriber lines of the switch of electro-acoustic devices and AU lines, while the interface cards have four E1 outputs, a card the sound card is connected to the broadcast source, and the modem unit of the base station has N outputs of the FSM type, the microprocessor has two Ethernet connectors, two RS-232 ports and a VSB interface, and the switch acoustic devices and lines AU is connected to the broadcast line and has inputs and outputs for electro-acoustic transducers.

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