RU111950U1 - SUBSCRIBER COMPLEX FOR MAINTENANCE MEANS - Google Patents

Abstract

 A subscriber complex for maintenance tools, containing two subscriber sets whose inputs and outputs are the first and second inputs and outputs of the device, as well as a switch module, the output of which is connected to the speakerphone complex, while the switch module has two inputs, three inputs and outputs and four outputs-inputs, characterized in that the first and second panels are introduced, the first outputs-inputs of which are connected respectively to the first and second inputs and outputs of the switch module, the third input-output of which is connected with the combined second outputs-inputs of the controllers, the inputs-outputs of which are connected to the outputs-inputs of the corresponding subscriber sets, in addition, the switch module includes nine modems, the inputs of which are connected to the first signal bus, and their outputs - to the second signal bus, six codecs , the inputs of the first, second, third and sixth are connected to the first signal bus, and the outputs of the first, second, fourth, fifth and sixth codecs are connected to the second signal bus, to which the outputs of the first and second vocoders are connected, the inputs to of which are connected to the first signal bus, while the inputs / outputs of the vocoders are interconnected and with the output-input of the interface module with a multiplex communication channel, as well as four serial port buffers (BPP), the outputs and inputs of the second and fourth BPPs are the first and second outputs -input of the device, respectively; the output-input of the third BPP - the second input-output of the switch module; the controller outputs and inputs are connected to the inputs, outputs of the first, second, third, and fourth BPPs, a switch, and programmable logic integration

Description

The subscriber complex for maintenance facilities (STO) refers to the switching equipment of subscriber sets and can find application in intercom systems.

A known method and system for processing telephone calls involving two digital wireless subscriber devices, eliminating the double coding of speech signals (application 98107812/09 from 04.29.1998), the disadvantage of which is the low level of functionality of this system.

A subscriber communication terminal is also known (application 98109147/09 of 05/19/1998), the disadvantage of which is the insufficiently high level of functionality of this communication terminal.

Closest to the technical nature of the proposed is a quasi-electronic automatic telephone exchange (PBX), described in the book "Automatic Switching Systems", ed. O. Ivanova, Moscow, ed. "Communication", 1978, pp.451-455, adopted as a prototype.

An enlarged structural diagram of the prototype device is shown in figure 1, where it is indicated:

1.1-1.n - from the 1st to the n-th subscriber sets;

3 - switching system;

4 - speakerphone complex (KGSv);

5 - voice recorder;

6 - a radio communication complex (KRSv);

7 - a set of incoming connecting lines (KVSL);

8 - subscriber service kit (KSA);

9 - a set of outgoing connecting lines (KISL);

10 - subscriber cord kit (KSA);

11 - dialing kit (KNN).

The prototype device contains n subscriber sets 1.1-1.n, the first outputs-inputs of which are connected to the corresponding inputs-outputs of the switching system 3, while the second outputs-inputs of the subscriber sets 1.1-1.n are interconnected and connected to the corresponding output the input of the switching system 3, while the inputs and outputs of the subscriber sets 1.1-1.n are the corresponding inputs and outputs of the prototype device. In addition, the outputs and inputs of the switching system 3 are connected to the inputs and outputs of the recorder 5, the radio communication complex 6, the subscriber service kit 8 and the dialing kit 11, respectively. The first, second and third outputs of the switching system 3 are connected to the first inputs of the speakerphone complex 4, the set of outgoing connecting lines 9 and the subscriber set 10. The second inputs of the recorder 5, the radio complex 6, the speakerphone 4, the set of incoming connecting lines 7, service subscriber set 8, outgoing trunk set 9, cord subscriber set 10 and dialing set 11 are interconnected and connected to the corresponding the switching system 3. The outputs of the set of incoming connecting lines 7 and the subscriber's cord set 10 are connected to the corresponding inputs of the switching system 3. Moreover, the outputs-inputs of the recorder 5, the radio complex 6, the subscriber service kit 8 and the subscriber cord set 10 are the corresponding outputs-inputs of the device prototype. The output of the set of outgoing connecting lines 9 is the corresponding output of the device, and the input of the incoming connecting lines 7 is the corresponding input. The device prototype operates as follows. Switching system 3 is designed to establish connections between lines or channels included in its inputs and outputs. The kits included in the switching system 3 (not shown in FIG. 1) are intended for transmitting and receiving control and linear signals.

The sets are divided into subscriber 1.1-1.n, connected through the subscriber line to the subscriber's telephone, service 8; string 10; dialing kit 11. A voice recorder 5, a radio communication complex 6, a speakerphone complex 4, a set of incoming trunk 7, a set of outgoing trunk 9 are also connected to the inputs and outputs of the switching system 3.

The disadvantages of the prototype device are significant weight and overall characteristics, low reliability of the transmission of speech information in the presence of spurious electromagnetic interference. The task is to improve the technical characteristics of the device. To solve the problem, a device containing two subscriber sets, the inputs and outputs of which are the first and second inputs and outputs of the device, as well as a switch module, the output of which is connected to the speakerphone complex, while the switch module has two inputs, three inputs and outputs and four outputs-inputs, according to the utility model, the first and second panels are introduced, the first outputs-inputs of which are connected respectively to the first and second inputs-outputs of the switch module, the third input-output of which is connected to the second outputs-inputs of the controllers, the inputs-outputs of which are connected to the outputs-inputs of the corresponding subscriber sets, in addition, the switch module includes nine modems whose inputs are connected to the first signal bus, and their outputs - to the second signal bus, six codecs, inputs the first, second, third and sixth are connected to the first signal bus, and the outputs of the first, second, fourth, fifth and sixth codecs are connected to the second signal bus, to which the outputs of the first and second vocoders are connected, the inputs of which are are connected to the first signal bus, while the inputs / outputs of the vocoders are interconnected and with the output-input of the interface module with a multiplex communication channel, as well as four serial port buffers (BPP), the outputs and inputs of the second and fourth BPPs are the first and second outputs device input, respectively; the output-input of the third BPP - the second input-output of the switch module; the controller outputs and inputs are connected to the inputs, outputs of the first, second, third, and fourth BPPs, a switch, and a programmable logic integrated circuit (FPGA), the output of which is connected to the second signal bus, and its input is connected to the first signal bus to which the switch output is connected the input of which is connected to the second signal bus; in addition, there are six low-frequency amplifiers (VLF), with the inputs / outputs of the first, second, and sixth VLF connected to the outputs-inputs of the first, second, and sixth codecs, respectively, and the outputs-inputs of the first and second VLF are the third and fourth outputs-inputs of the module switch accordingly; the input of the third ULF is connected to the output of the third codec, the outputs of the fourth and fifth ULF are connected to the inputs of the fourth and fifth codecs, respectively, while the inputs of the fourth and fifth ULF are respectively the first and second inputs of the switch module, the output of the third ULF is the output of the switch module.

The structural diagram of the inventive subscriber complex is shown in figure 2, where it is indicated:

1.1, 1.2 - the first and second subscriber sets;

2.1, 2.2 - the first and second consoles;

3 - switch module;

4 - speakerphone complex (KGSv).

The proposed device contains a series-connected (bi-directional) first subscriber kit 1.1 and a first console 2.1, sequentially connected (bi-directional) a second subscriber kit 1.2 and a second console 2.2, with the first outputs-inputs of the first 2.1 and second 2.2 panels connected to the first and second inputs the outputs of the switch module 3, respectively. The second outputs-inputs of the first 2.1 and second 2.2 remotes are connected to the third input-output module of the switch 3, the output of which is connected to the input KGSv 4.

In addition, the first input of the switch module 3 is the first input for connecting the first type of external devices, and the second input is the second input for connecting the second type of external devices. The first and fourth outputs and inputs of the module of the switch 3 are the corresponding outputs and inputs of the device for connecting to a radio communication complex. The inputs and outputs of the first and second subscriber sets 1.1, 1.2 are respectively the first and second inputs and outputs of the device.

The first and second subscriber sets 1.1, 1.2 are the same. The structural diagram of the subscriber kit 1.1 is shown in figure 3, where indicated:

1.1.1 - headset;

1.1.2 - module breast switches (MNP).

Subscriber kit 1.1 consists of a headset 1.1.1 and MNP 1.1.2, the output-input of which is the output-input of the subscriber set 1.1, the output of the MNP 1.1.2 is connected to the input of the headset 1.1.1, the input of the MNP 1.1.2 is connected to the output of the headset 1.1 .1, the input-output of the headset 1.1.1 is the input-output of the subscriber kit 1.1.

MNP 1.1.2, 1.2.2, respectively, of the first and second subscriber sets 1.1, 1.2 are performed identically.

The structural diagram of MNP 1.1.2 is shown in figure 4, where it is indicated:

1.1.2.1 - the first amplifier;

1.1.2.2 - second amplifier;

1.1.2.3 - codec;

1.1.2.4 - the modem.

MNP 1.1.2 contains the first 1.1.2.1 and second 1.1.2.2 amplifiers, a series-connected codec 1.1.2.3 and a modem 1.1.2.4, the output-input of which is the output-input of the MNP 1.1.2. Moreover, the input of the codec 1.1.2.3 is connected to the output of the first amplifier 1.1.2.1, the input of which is the input of the MNP 1.1.2, the input of the second amplifier 1.1.2.2 is connected to the output of the codec 1.1.2.3, the output of the second amplifier 1.1.2.2 is the output of the MNP 1.1. 2.

The first and second consoles 2.1, 2.2 are made in the same way.

The structural diagram of the remote control 2.1 is shown in figure 5, where indicated:

2.1.1 - matrix keyboard 4 * 5, with single indicators;

2.1.2 - FPGA;

2.1.3 - buffer of the serial port RS485 (BPP);

2.1.4 - 2 * 20 indicator (2 lines of 20 characters each).

Remote 2.1 consists of a series-connected keyboard matrix 4 * 5 2.1.1, FPGA 2.1.2 and BPP 2.1.3, as well as an indicator 2 * 202.1.4, the output-input of which is connected to the second input-output of the FPGA 2.1.2. In this case, the output-input of the serial port 2.1.3 buffer is the first output-input of the console 2.1, the input-output connector of the console 2.1 is connected to the second output-input connector of the console 2.1.

Figure 6 shows a diagram of a module of the switch 3, where indicated:

3.1-3.9 - from the first to the ninth modems;

3.10, 3.14, 3.15, 3.16 - from the first to the fourth serial port buffers (BPP);

3.11 - programmable logic integrated circuit (FPGA);

3.12 - switch;

3.13 - controller;

3.17, 3.19, 3.21, 3.23, 3.25, 3.27 - from the first to the sixth codec;

3.18, 3.20, 3.22, 3.24, 3.26, 3.28 - from the first to the sixth low-frequency amplifiers (VLF);

3.29, 3.31 - the first and second vocoders;

3.30 - the interface module with a multiplex communication channel (MCO).

The switch module 3 contains from the first to the ninth modems 3.1-3.9, the inputs of which are connected to the first signal bus, and their outputs are connected to the second signal bus, the input-output of modem 3.1 is the first input-output of the module 3, the input-output of modem 3.2 is the second input-output of the switch module 3. The inputs of the first to third codecs 3.17, 3.19, 3.21 and the sixth codec 3.27 are connected to the first signal bus, the outputs of the codecs first 3.17, the second 3.19 and the fourth to sixth, 3.23, 3.25, 3.27 are connected to the second signal bus. In addition, the outputs-inputs of the first 3.17, second 3.19 and sixth 3.27 codecs are connected to the inputs-outputs of the corresponding VLF 3.18, 3.20, 3.28. The output of the third codec 3.21 is connected to the input of the third VLF 3.22. The inputs of the fourth 3.23 and fifth 3.25 codecs are connected to the outputs of the fourth 3.24 and fifth VLF 3.26, respectively. The output-input of the interface module with MCO 3.30 is connected to the inputs-outputs of the first 3.29 and second 3.31 vocoders, the outputs of which are connected to the second signal bus, and their inputs are connected to the first signal bus. The outputs and inputs of the controller 3.13 are connected respectively with the inputs and outputs of the first 3.10, second 3.14, third 3.15 and fourth 3.16 BPP, switch 3.12 and FPGA 3.11, the output of which is connected to the second signal bus, and the input to the first signal bus. The input of the switch 3.12 is connected to the second signal bus, and its output is connected to the first signal bus. The outputs-inputs of the second 3.14, fourth 3.16 BPP, the first 3.18 and second 3.20 VLF are respectively the first, second, third and fourth outputs-inputs of the module of the switch 3 for connecting the radio complex. The output-input of the third BPP 3.15 is the third input-output of the switch module 3. The output of the third VLF 3.22 is the output of the switch module 3. The inputs of the fourth 3.24 and fifth 3.26 VLF are the first and second inputs of the switch module 3, respectively.

The proposed device operates as follows.

The subscriber complex is designed to work in facilities and is an amplification-switching device that provides all subscribers of the facility with internal communications and each of the subscribers has access to external communications equipment - radio communications equipment (SIRS). At the same time, circular and selective communication with external subscribers is carried out.

In addition, the device provides broadcast signals arriving to the subscriber from the radio station to the loudspeaker 4.

Blocks are intended:

remotes 2.1, 2.2 - to provide control and indication of communication modes;

switch module 3 - for switching speech streams;

loudspeaker module 4 - for broadcasting negotiations;

chest switch modules 1.1.2, 1.2.2 - for connecting electro-acoustic devices (headsets, microphones, etc.) to the switch module 3 and controlling the choice of transmit-receive modes when working with external communications, as well as selecting the “forced circular” mode ".

The subscriber complex provides the following communication modes:

- internal two-way telephone communication between subscribers with listening to their own speech;

- internal circular communication with listening to your own speech with the switching of subscribers to the “internal communication” mode regardless of the operating modes they selected earlier (“forced circular”) and automatic return to the selected communication modes at the end of the “forced circular”;

- receiving signals from equipment for the transmission of service messages through the first and second inputs of the device;

- access to external communications - RSv;

- sending a selective call to external subscribers via RSv;

- making a circular call to external subscribers via RSv;

- light indication of incoming calls by external means of communication with the ability to control the number of the caller;

- broadcasting signals listened by the subscriber on the radio to loudspeaker 4;

- the ability to provide radio communications for the subscriber.

The signal from the electro-acoustic devices is fed to the input of the amplifier 1.1.2.1 of the chest switch module 1.1.2, which has an automatically adjustable gain in the frequency range from 300 to 3400 Hz. After that, the signal is converted to digital form and then the signal goes to the switch module 3, where the devices are switched in such a way that the signal goes to one of the communication complexes (communication direction), or to the internal communication network. From the output of the amplifier 1.1.2.1, the signal is supplied to the codec 1.1.2.3, which converts the incoming analog signal into a digital form in the format of pulse-code modulation 64 (PCM 64), then the signal is fed to the digital modem 1.1.2.4, which provides encoding, modulation and digital transmission of a voice signal over twisted pair cable to the module of the switch 3 through the corresponding first 2.1 or second 2.2 remotes.

In the module of the switch 3, the signal is fed to the corresponding digital modem 3.1 or 3.2, where the demodulation and decoding of the signal is performed. From the modems 3.1, 3.2 output to a predetermined time window, a PCM 64 signal enters the second signal bus of the switch module 3. Under the control of the controller 3.13, the switch 3.12 switches the signals coming from the breast switches 1.1.2, 1.2.2 into the time windows corresponding to communication directions selected by subscribers. From the switch module 3 through the corresponding first or second panels 2.1, 2.2, the signal is fed to the outputs-inputs of the chest switch modules 1.1.2 or 1.2.2. The signal received at the output-input of the subscriber kit 1.1 is fed to the output-input of the modem 1.1.2.4, which provides demodulation and decoding of the signal. From the digital modem 1.1.2.4, a signal in PCM 64 format is fed to the codec 1.1.2.3, which provides the conversion of the digital signal into analog form. From the output of deck 1.1.2.3, the signal is fed to the input of amplifier 1.1.2.2, which provides signal amplification. From the output of the amplifier 1.1.2.2 MNP 1.1.2, the signal is supplied to the electro-acoustic device, which is part of the subscriber kit 1.1.

Switch 3.12 operates under the control of controller 3.13, and control is carried out on a parallel control bus. Switch 3 transmits and receives digital information in PCM 64 format on the first and second signal buses.

In the intercom mode, the telephone signals of all subscribers go to the switch module 3, where under the control of the controller 3.13 the signals from all subscribers and the signals coming to the switch 3 are mixed from external devices of the first type (for example, from the GO-27 equipment (warning device )) and the second type (for example, on-board control devices for the automation system (BU SA)). The mixed signal is fed to the inputs and outputs of switch 3 for all subscribers currently working on the internal network.

Information from all communication directions is transmitted via the second signal bus in sequential form to the corresponding time windows. Each communication direction has a separate window.

Under the control of controller 3.13, switch 3 can send information from any time window of the incoming stream to any time window of the outgoing stream. Also, the switch 3 provides parallel connection of several telephone channels in the mixing mode, allowing simultaneous exchange of voice information between multiple subscribers.

In the radio mode under the control of the controller 3.13, the subscriber signal is switched in the time window intended for operation with the PCv equipment. After that, the digital signal in the codecs 3.13, 3.15 is converted into analog form for transmission to PCv equipment. The speech signal from the RSv equipment is fed to the module of the switch 3 - on the codecs 3.17, 3.19. The received signal in codecs 3.17, 3.19 is converted from an analog form to PCM 64 format. From the output of the first and second codecs 3.17, 3.19, the signal enters the second signal bus of switch 3 in a predetermined time window.

Buffers 3.10, 3.14, 3.16 - are serial port (BPP) buffers of the RS232 type, buffer 3.15 is a RS485 type BPP.

The switch module 3 is a multifunctional device that allows you to implement a large number of functionality. In the inventive device, a subscriber complex for maintenance facilities (STO), the switch module 3 is used without changing its design, the software allows you to use only the necessary functionality and, accordingly, the output signals of the switch module 3 by setting the configuration (functionality used).

The remotes 2.1-2.2 use a button keyboard, which is a 4 × 5 matrix.

The display panel of the panels 2.1-2.2 is designed to display information about the status and operation modes of the subscriber complex.

MNP 1.1.2, 1.2.2 are implemented on a MT9172 digital subscriber interface chip and MT9162 codecs from Zarlink.

Remotes 2.1-2.2 are implemented on FPGAs from Xilinx XC2V250-4CS144I.

The first to ninth modems 3.1-3.9 are implemented on the MT9172 digital subscriber interface chip.

FPGA 3.7 is implemented on the Xilinx chip XC3S400-4PQ208I.

Switch 3.12 is implemented on a Zarlink MT90812AL chip.

The 3.13 controller is implemented on the Atmel chip AT91RM9200.

BPP 3.10, 3.14, 3.15, 3.16 are implemented on the Maxim microcircuit of Maxim company.

Codecs 3.17, 3.19, 3.21, 3.23, 3.25, 3.27 are implemented on the MT9162 chip from Zarlink.

ULF 3.18, 3.20, 3.22, 3.24, 3.26, 3.28 are implemented on the OP467GS chip from Analog Devices.

Vocoders 3.29, 3.31 are implemented on a DVSI company AMBE2000 chip.

The interface module with MCO 3.30 is implemented on the micro assembly VA996.

This element base has minimal weight and overall characteristics and minimal power consumption.

Thus, in comparison with the prototype, the proposed subscriber complex provides higher reliability, better weight and overall characteristics, less probability of errors, a higher degree of protection against spurious electromagnetic interference.

Claims (1)

A subscriber complex for maintenance tools, containing two subscriber sets whose inputs and outputs are the first and second inputs and outputs of the device, as well as a switch module, the output of which is connected to the speakerphone complex, while the switch module has two inputs, three inputs and outputs and four outputs-inputs, characterized in that the first and second panels are introduced, the first outputs-inputs of which are connected respectively to the first and second inputs and outputs of the switch module, the third input-output of which is connected with the combined second outputs-inputs of the controllers, the inputs-outputs of which are connected to the outputs-inputs of the corresponding subscriber sets, in addition, the switch module includes nine modems, the inputs of which are connected to the first signal bus, and their outputs - to the second signal bus, six codecs , the inputs of the first, second, third and sixth are connected to the first signal bus, and the outputs of the first, second, fourth, fifth and sixth codecs are connected to the second signal bus, to which the outputs of the first and second vocoders are connected, the inputs to of which are connected to the first signal bus, while the inputs / outputs of the vocoders are interconnected and with the output-input of the interface module with a multiplex communication channel, as well as four serial port buffers (BPP), the outputs and inputs of the second and fourth BPPs are the first and second outputs -input of the device, respectively; the output-input of the third BPP - the second input-output of the switch module; the controller inputs and outputs are connected to the inputs, outputs of the first, second, third, and fourth BPPs, a switch, and a programmable logic integrated circuit (FPGA), the output of which is connected to the second signal bus, and its input is connected to the first signal bus to which the switch output is connected the input of which is connected to the second signal bus; in addition, six low-frequency amplifiers (VLF), with the inputs / outputs of the first, second, and sixth VLF connected to the outputs-inputs of the first, second, and sixth codecs, respectively, and the outputs-inputs of the first and second VLF are the third and fourth outputs-inputs of the module switch accordingly; the input of the third ULF is connected to the output of the third codec, the outputs of the fourth and fifth ULF are connected to the inputs of the fourth and fifth codecs, respectively, while the inputs of the fourth and fifth ULF are respectively the first and second inputs of the switch module, the output of the third ULF is the output of the switch module.