RU2671622C1 - Multifunctional system of audio broadcasting with remote access and control and monitoring elements - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: invention relates to devices for broadcasting a continuous stream of audio data using the Internet. Audio broadcasting system includes means for wireless data transmission over the Internet, means for receiving information from a plurality of consumers and a broadcasting station. Broadcasting station is connected to the database through the signal conditioning unit to transmit it to the broadcasting station connected to the input of the personal computer, which is connected through audio cards with an audio processor, connected outputs to a broadcast amplifier and a high-end amplifier. In this case, an audio processor, a broadcast amplifier and a high-end amplifier are equipped with each of the autonomous power supplies and GPS-trackers. Computer of the broadcasting station is equipped with a control program for the computer. There is also an additional server for streaming audio signals, constantly connected to the Internet.

EFFECT: technical result consists in providing the possibility of monitoring the state of the audio broadcasting system and regulating its operation mode and the quality of broadcasting.

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Description

The invention relates to devices for distributing information transmissions simultaneously among several receiving points using radio waves and is used to broadcast a continuous stream of audio data to any cities and towns using the Internet, and can be widely used in real-time wireless communication systems.

A known system for transmitting and receiving video, audio and handwritten information in real time, which, in particular, can be used in microphones or electronic secretaries, is presented in paragraph. RF No. 2302703 class. H04L 12/28, 2007.07.10).

The known system is characterized by the following formula (only an independent item is given).

1. The system of real-time information exchange between computing devices over the Internet, including:

format identification means allowing the central processor of the named computing device to identify the source and format of the piece of information after the receipt of such a piece of information in the named computing device,

information packet forming means preparing an information packet having a plurality of predetermined storage areas in a storage device of said computing device, wherein such areas include a destination information storage area, an image information storage area, an audio information storage area, a handwritten information storage area, a captured storage area Images,

encapsulation means for storing a portion of information of a certain format identified by the format identification means in the corresponding storage area of the information packet,

means for transmitting information, which is used to transmit over the Internet an information package to the address specified in the storage area of information about the addressee, and

means for receiving / viewing information, which is used to display the contents of each storage area of the information packet in the information window of the prompt in the form of an upper window on the video display after receiving such an information packet by a computing device, wherein the information window of the prompt contains at least:

date and time of receipt of the information package,

information about the sender indicating his name, company (or organization) name, source of information package and topic,

information about the open state indicating whether the contents of the information package were previously opened and displayed,

message level information indicating the importance level of the information packet, and

a plurality of window control keys for closing and deleting a help information window.

The known system has the following disadvantages associated with the development and implementation of new technologies. This system has an excessive number of additional manipulations in establishing communications. Before its establishment, a bilateral agreement is necessary, i.e. the process is agreed in advance.

Closest to the technical nature of the claimed is the broadcast studio of a data transmission system for the distance, presented in paragraph. Of the Russian Federation No. 74257 class. H04L 12/28, z. 10/01/2017 „op. 06/20/2008, and selected as a prototype.

The known system includes a transmission medium, an information receiving means, a broadcast studio containing an audio signal source, format identification means, at least one computer, and is characterized in that the computer has a card for collecting audio data, encoding it into a network protocol, and converting analog signals to digital audio stream, while many consumers are included as receiving devices.

At the same time, local networks of Internet providers, local computer networks of enterprises and settlements, mobile communication networks with subscriber networks, fixed-line telephone networks of settlements, satellite communications receivers, network broadcasting dynamics of enterprises and settlements, cable television broadcasting receivers can be used as receiving devices , sound amplification equipment in open areas, devices for wireless data transmission from computer to computer WI FI ”, transceiver devices Islands HF, VHF, FM - range.

Structurally, a remote data transmission system includes a broadcast studio connected to consumers - receiving devices through a global computer network, and consumer servers.

Structurally, a broadcast studio consists of the following components:

1 Sources of analog audio signals;

2 Mixer, in which audio signals are mixed and adjusted in level;

3 uninterruptible power supplies;

4 computing machines of a Pentium IV class computer;

5 Boards for collecting audio data (sound adapter);

6 Management server program;

7 Standard network card with a fixed IP address;

8 Codecs of digital audio formats;

9 Network cable connected to the LAN (local area network).

At the same time, from the board 5 and / or from the codecs 8, the digitized signal is converted by the control program 6 by transcoding continuous streams of digital data into a sequence of TCP / IP packets through a standard network card 7 via one or more ports, creating multi-channel stereo audio streams.

A disadvantage of the known system lies in the fact that its operational capabilities are limited by the lack of means for possible monitoring of the condition of the equipment at a distance, schedule adjustment, video signal supply and improving broadcast quality.

The objective is to expand the operational capabilities of the system as a whole by ensuring the monitoring of the state of its main components, monitoring and regulating the operating mode and broadcast quality.

The problem is solved in that in a multifunctional audio broadcasting system with remote access and control and monitoring elements, including an audio signal source, means for wireless data transmission over the Internet, means for receiving information from many consumers and a broadcast station containing format identification means, a computer equipped with a board for collecting audio data, a means of encoding them into a network protocol and converting analog signals to a digital audio stream using a control program we, ACCORDING TO THE INVENTION, the audio signal source is time-adjustable, audio cards are used in the broadcasting station to collect audio data, the encoding means is an audio processor associated with a broadcast amplifier and a premium class amplifier, while the audio processor, broadcast amplifier and a premium class amplifier are equipped with GPS trackers for receiving / transmitting data for their satellite monitoring, the system additionally contains a streaming server for transmitting a stream via HTTP, constantly İnönü to the Internet, the control program provides independent volume control of broadcasting and its monitoring, change the content and location of its local file as well as change tracking and time grid broadcast in each broadcast area.

The use of an audio signal source, adjustable in time, makes it possible to adjust the content at broadcasting stations in the current time mode.

The use of audio cards in the broadcasting station to collect audio data that allow you to process sound simplifies the system and improves the quality of broadcasting, allowing you to work with different formats of audio data, provides smoother volume control, and allows you to organize the work of several broadcast areas within several zones.

Using an audio processor for transcoding data streams allows you to configure the output audio signal, providing high sound quality regardless of the capabilities of the receiving equipment.

Equipping an audio processor, a broadcast amplifier and a high-end amplifier with GPS trackers makes it possible to control their performance.

The presence in the system of an additional streaming server for transmitting the stream via the HTTP protocol, which is constantly connected to the Internet, makes it possible to organize broadcasting in real stream mode, i.e. digitize the signal from the microphone and transmit it to the broadcast station in real time.

Together with the above-mentioned design features, the use of a control program that allows for independent adjustment of the broadcast volume and its monitoring, changing the content and local location of its file, as well as changing and tracking the broadcast broadcast grid in each broadcast zone, is guaranteed to provide the desired results.

The technical result - improving sound quality, providing the ability to control the technical condition of the main components of the system, the ability to control and adjust the broadcast mode and characteristics.

The claimed invention has novelty in comparison with the prototype, differing from it by such significant features as the use of audio cards in a broadcasting station to collect audio data, the use of a time-dependent sound signal source as a database, the implementation of encoding means in the form of an audio processor associated with a broadcast amplifier and top class amplifier,

supplying an audio processor, a translation amplifier and a high-end amplifier with GPS trackers for receiving / transmitting data for satellite monitoring, using an additional streaming server in the system for transmitting a stream via HTTP, constantly connected to the Internet, using a control program that provides independent control of the broadcast volume and its monitoring, changing the content and the local location of its file, as well as changing and tracking the temporary broadcasting grid in each broadcasting zone, bespechivaet collectively achieve the desired result.

The applicant is not aware of technical solutions possessing the indicated distinguishing features, which together ensure the achievement of a given result, therefore he considers that the claimed system meets the criterion of “inventive step”.

The invention can find wide application in real-time wireless communication technology, and therefore meets the criterion of "industrial applicability".

The invention is illustrated by drawings, which are presented in:

- FIG. 1 is a block diagram of a data transmission system;

- FIG. 2 is a functional diagram of a broadcasting station;

- FIG. 3 - connection diagram of a GPS tracker to an amplifier;

- FIG. 4 - signal preparation unit in a multifunctional audio broadcasting system;

- FIG. 5 is a photo of a cabinet with a broadcast station assembled inside.

The inventive multifunctional audio broadcasting system with remote access and control and monitoring elements, including means for wireless data transmission over the Internet, means for receiving information from multiple consumers and a broadcasting station, is presented in block form in FIG. 1. The following notation is used in the scheme: TCP / UDP - streams of wireless data transmission over the Internet; Database - the source of the audio signal is somehow adjustable in time; Real-time - Server organizing the work of direct broadcasting of an audio stream remote from the server in real time.

More specifically, it is made as follows.

Broadcasting station 1 (Fig. 2) is connected to the database 2 through a signal preparation unit 3 for transmission to a broadcasting station connected to the input of a personal computer 4, which is connected via audio cards 5 to an audio processor 6 connected to the outputs by a translation amplifier 7 and amplifier 8 top class. At the same time, the audio processor 6, the broadcast amplifier 7 and the higher-class amplifier 8 are each equipped with autonomous power sources 9 and GPS trackers 10 (their connection diagram is shown in Fig. 3). The computer 4 of the broadcasting station 1 is equipped with a control program for a computer. There is also an additional server 11 for streaming audio signals, constantly connected to the Internet (Fig. 1).

Structurally, the broadcasting station can be assembled in one cabinet (see photo in Fig. 5).

Database 2 is a time-adjustable digital signal source.

Broadcasting station 1 and database 2 are interconnected by streams of wireless data transmission over the Internet (Fig. 1). The system operates as follows.

The necessary information from the database 2 via the Internet goes to the signal preparation unit 3, where it is processed as necessary taking into account the unstable operation of the Internet network, changes affecting the sound quality of weather conditions, wear and tear of equipment, and power of the amplifier path. In particular, it performs digital-to-analog conversion of a signal from database 2 of the data, its transmission via the Internet to an analog-to-digital converter, and then through an amplifier — to broadcast through broadcast station 1 (Fig. 4). From block 3, the prepared signal is sent to computer 4 of the broadcasting station 1, where it is further processed first with the help of audio cards 5, which work with different formats of audio data, processing the sound, which provides a more smooth volume control, allows you to organize the work of several broadcast areas within several zones, (each audio card has its own broadcast zone). Then the signal goes to the audio processor 6, where it is converted to a digital signal, transcoding the digital format streams into a sequence of packets of the desired protocol using the control program, which allows you to configure the output audio signal, ensuring high sound quality regardless of the capabilities of the receiving equipment. Next, the signal flows in digital format are transmitted to the broadcast amplifier 7 and to the high-class amplifier 8 (Fig. 2) and transmitted via wireless Internet to consumers through their servers (not shown in the drawings).

Data is transmitted over the Internet at a speed of at least 5 mb / s.

The fact that in the system the server 11 streaming audio has a constant connection to the Internet, allows you to connect to it from any device that can digitize the audio signal from the microphone and transmit it via the specified protocol to the server.

In the event that one broadcasting station 1 provides operation of 2 or more broadcasting zones, the number of audio outputs at the broadcasting station should correspond to the number of zones. This allows you to customize the content and volume schedule of each individual zone independently of the other.

The formation and automation of the playback of audio content is carried out using the interaction of the consumer server and the broadcast station by forming a base of playlists on the consumer server.

Also, the broadcast station 1 has the ability to transmit data about its status to the server. The status of broadcasting station 1 is characterized by the following parameters:

1. The time at which the broadcast station operates;

2. Information about what specific content is currently being played on each zone connected to the broadcast station;

3. Information about the status of amplifiers. To transmit information about the state of the amplifier path, a GPS tracker 10 is used (the connection diagram is shown in Fig. 3).

The applicant has calculated the quality of the multifunctional audio broadcasting system. The formula he derived reflects the fact that the quality of the system depends on the quality of work of each component of the system.

To account for the quality of the output characteristics, the conditional unit Q _s was introduced - the quality of the system:

Where:

H - Depth of volume control on a personal computer. broadcast station;

P - Power amplification of the input signal to the amplifier (W.);

S _i - the vector form of the input signal to the amplifier;

S _o - Vector shape of the output signal on the amplifier;

n - Number of broadcast stations (pcs.);

I _s - Internet speed on a server serving n broadcast stations (mb / s);

B _r - real-time broadcast bitrate (kb / s);

I _st - Average Internet speed at a broadcasting station (mb / s);

Thus, the closer the value of Q _{s is} to 1, the higher the indicator of the quality of the system as a whole.

Under the quality of the system is meant a combination of factors affecting the operation of the system, such as:

1. Depth of adjustments.

2. Distortion of the amplified signal.

3. The speed of data transfer from the server to the station.

4. Real-time broadcast quality (real-time broadcast quality means the maximum allowable bitrate at the Internet speed that is available at the broadcast station).

Compared with the prototype, the claimed multifunctional audio broadcasting system has wider operational capabilities, providing higher sound quality, the ability to control the technical condition of the main components of the system, the ability to control and adjust the broadcast mode and characteristics.

Claims (1)

A multifunctional audio broadcasting system with remote access and control and monitoring elements, including an audio signal source, means for wireless data transmission over the Internet, means for receiving information from many consumers and a broadcasting station containing format identification means, a computer equipped with an audio data collection board, means encoding them into a network protocol and converting analog signals to a digital audio stream using a control program, characterized in that the sound source of the signal is time-adjustable, audio cards are used in the broadcasting station to collect audio data, the encoding means is an audio processor associated with a broadcast amplifier and a premium class amplifier, while the audio processor, broadcast amplifier and a premium class amplifier are equipped with GPS trackers for receiving / transmitting data for their satellite monitoring, the system additionally contains a streaming server for streaming over HTTP, permanently connected to the Internet, a control program and provides independent volume control of broadcasting and its monitoring, change the content and location of its local file as well as change tracking and time grid broadcast in each broadcast area.

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