KR20030015119A - System and Method for RF Wireless Broadcasting - Google Patents

Abstract

PURPOSE: A wireless broadcasting system using an RF(Radio Frequency) band and a method therefor are provided to perform event processing for broadcasting of a remote site in real time by paging event library, and to wirelessly transmit the processed broadcasting, so as to enable the broadcasting by only one broadcaster through real-time edition. CONSTITUTION: A data input part(10) receives data for A/V(Audio/Video) shot or recorded at the site and the state of broadcasting receiving equipment. A database(30) stores edited A/V, the data for the broadcasting receiving equipment state and a broadcasting receiving equipment controlling command. Also, the database(30) stores texts, images, moving pictures and sound data enabling the A/V edition in a type of library(31). A CPU(20) edits the A/V inputted through the data input part(10) in real time by paging the library stored in the database(30) to store the edited A/V in the database(30) and output the A/V. Also, the CPU(20) provides a data storing function, a setup management function and a user management function through an authentication module, and stores the predetermined broadcasting receiving equipment controlling command in the database(30) in accordance with the broadcasting receiving equipment state then outputs the command. An RF transmission part(40) of a broadcasting transmission party transmits the edited A/V and the receiving equipment controlling command outputted by the CPU(20) to the broadcasting receiving equipment. And an RF transmission part(50) of a broadcasting receiving party receives the edited A/V and the receiving equipment controlling command transmitted by the RF transmission part(40) of the broadcasting transmission party to perform real-time broadcasting through the broadcasting receiving equipment, or controls the corresponding broadcasting receiving equipment in accordance with the broadcasting receiving equipment controlling command.

Description

Wireless broadcasting system and method using RF band {System and Method for RF Wireless Broadcasting}

The present invention relates to a wireless broadcasting system using an RF band, and more particularly, to a wireless broadcasting system and a method enabling broadcasting by only one broadcaster through real time event processing using an event library and wireless transmission technology of the ISM band.

In general, broadcasting systems used for live recording of large-scale presentations and lectures, multi-image display, educational broadcasting in audio-visual education rooms of elementary, middle and high schools, and audio-visual education in educational institutions such as academy are processed by wire. It is possible to broadcast only in a limited section, and due to wired section facilities, it is difficult to move and requires excessive line cost, and it requires a lot of complicated procedures such as audio processing, editing, and video work for producing a single video. .

In addition, distance education and virtual university system were mainly focused on text information delivery, and it took much time and effort to produce teaching materials, and virtual university could not be activated due to difficulties in developing educational contents. There is a problem that a huge cost is required to input and edit educational text data.

As described above, the conventional broadcasting system used in audiovisual education or publicity in the street has a problem in that installation cost is expensive and mobility is limited due to wired wiring, and a plurality of photographing equipment and audio processing, It has to go through a rather complicated process such as editing and video work, and the broadcasting solution has a limitation in real-time information transmission power by simply showing the presenter's appearance or broadcasting and broadcasting in the order of input.

The present invention has been made to solve the problems described above, the purpose of which is to transmit the event carried out remotely in real time through the event library call and wireless transmission, broadcasting through real-time editing with only one broadcaster without the help of other personnel To make it possible.

1 is a block diagram of a wireless broadcast system according to the present invention.

FIG. 2 is a detailed block diagram of a broadcast transmitting side RF transmitter in FIG. 1; FIG.

3 is a detailed block diagram of a broadcast receiving side RF transmitter in FIG. 1; FIG.

4 is a flowchart for explaining a radio broadcasting method according to the present invention.

Explanation of symbols on the main parts of the drawings

10: data input unit 11: video input unit

12: voice input unit 13: data input unit

20: central processing unit 21: image processing unit

22: voice processing unit 23: data processing unit

30: Database 31: Library

40: broadcast transmitting side RF transmitter 50: broadcast receiving side RF transmitter

41,51: RF transmission module 42,52: channel monitoring module

43,53: Noise Compensation Module 44,54: Control Data Management Module

A feature of the present invention for achieving the above object is, in a wireless broadcasting system using an RF band, a data input unit for receiving data on the state of the A / V and broadcast reception equipment photographed or recorded in the field; A database for storing the edited A / V, data on the broadcast receiving device status, and a broadcast receiving device control command, and storing text, image, moving picture, or sound data for enabling A / V editing in a library form; The A / V input through the data input unit is edited in real time through a library call stored in the database, stored in the database and then outputted, and performs data storage, setup management, and a plurality of user management functions through an authentication module. A central processing unit for outputting after storing a predetermined broadcast receiving equipment control command in the database according to the data on the broadcast receiving equipment status; A broadcast transmitter RF transmitter configured to transmit the edited A / V and broadcast receiver control commands outputted from the central processor to a broadcast receiver; Receives an edited A / V and broadcast receiving device control command transmitted from the broadcast transmitting side RF transmitter to perform real-time broadcasting through a broadcast receiving device, or broadcast receiving to control a corresponding broadcast receiving device according to the broadcast receiving device control command. The present invention provides a wireless broadcasting system using an RF band, comprising a side RF transmitter.

Here, the central processing unit, when connected to the streaming web server, automatically generates content for Internet service through the edited A / V stored in the database to provide the Internet service or to perform a library update, server management or data sharing function Characterized in that.

The broadcast transmitting side RF transmitting unit may include: an RF transmitting module configured to transmit the edited A / V and broadcast receiving equipment control command to a signal of a predetermined frequency to a broadcast receiving side; A channel monitoring module configured to monitor a channel on which the edited A / V and broadcast reception device control commands are transmitted through the RF transmission module and a noise state of the channel; A noise correction module configured to maintain an optimal channel through automatic channel change when noise occurs in a channel through the channel monitoring module; And a control data management module configured to receive data on a state of a broadcast receiving device from the broadcast receiving side through the RF transmitting module and transmit the data to the central processing unit, and then transmit a broadcast receiving device control command of the central processing unit to the broadcast receiving side. Characterized in that made.

The broadcast receiving side RF transmitter may receive the edited A / V and the broadcast receiving device control command from the broadcast transmitting side to perform a real time broadcasting through a broadcast receiving device or to control the state of the broadcast receiving device. An RF transmission module for transmitting data on a state of a broadcast reception device to a broadcast transmission side; A channel monitoring module configured to monitor a channel in which the A / V and the broadcast reception device control command edited through the RF transmission module and data transmission on the state of the broadcast reception device are made and the noise state of the channel is monitored; A noise correction module configured to maintain an optimal channel through automatic channel change when noise occurs in a channel through the channel monitoring module;

Control to transmit the data on the state of the broadcast reception equipment to the broadcast transmission side through the RF transmission module, and receive a broadcast reception equipment control command from the broadcast transmission side through the RF transmission module to control the state of the corresponding broadcast reception equipment. Characterized in that it comprises a data management module.

Furthermore, another aspect of the present invention provides a wireless broadcasting method using an RF band, comprising: setting a database to perform a broadcast reservation function or a cache function and preparing a central processing unit; Receiving, by the central processing unit, an A / V recorded or recorded by a wireless broadcasting device installed in a field or an A / V previously stored in the database; Editing the received A / V in real time through a library call stored in the database and transmitting the edited A / V to a broadcast receiving device; The broadcast receiving device provides a wireless broadcasting method using an RF band, comprising the step of receiving the edited A / V and real-time broadcasting.

Here, the wireless broadcasting method using the RF band includes the steps of receiving data on the equipment state from the broadcast receiving equipment to generate a predetermined broadcast receiving equipment control command; The method may further include controlling the state of the broadcast reception device by transmitting the generated broadcast reception device control command to the corresponding broadcast reception device.

The wireless broadcasting system using the RF band according to the present invention is an RF transmission technology that wirelessly transmits a broadcast or education conducted in a remote studio in real time, and inserts a 3D event that can be seen in billions of blockbuster movies using an event library during a real time broadcasting. It is implemented with broadcast operation software that includes technology.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The overall configuration of the wireless broadcasting system according to the present invention includes a data input unit 10 and a central processing unit 20 including an image input unit 11, an audio input unit 12, and a data input unit 13 as shown in FIG. 1. ), The library 31 is composed of a database 30, a broadcast transmitting side RF transmitter 40 and a broadcast receiving side RF transmitter 50.

The image input unit 11 receives an analog image captured in real time in the field or a digital multimedia image stored in a database 30 or an RF (Radio Frequency) method, that is, an image collected wirelessly.

The voice input unit 12 receives an analog voice recorded in real time or a digital voice stored in a database 30 or an RF voice.

The data input unit 13 receives data such as a selection value or state information on the state of the broadcast reception device.

The central processing unit 20 includes an image processing unit 21, an audio processing unit 22, and a data processing unit 23 to process effects on an image or an audio input through the image input unit 11 or the audio input unit 12. It performs real-time editing such as real-time editing, data storage, setup management, and a plurality of user management functions through an authentication module, and controls a predetermined broadcast reception device according to a selection value or status information of a broadcast reception device input through the data input unit 13. Outputs a command to control and manage the corresponding broadcast receiving device.

In particular, the real-time editing by the central processing unit 20 according to the present invention is not an edit of the digital method of editing frame by frame, but an analog method of editing the effect in real time using an overlay card.

In detail, the image processor 21 calls a text, image, or video library 31 stored in the database 30 on an image input through the image input unit 11 to perform a black and white process or an image overlay process. It also performs VGA (Video Graphic Array) control or NTSC (Nation Television Systems Committee) control.

The voice processor 22 calls the sound library 31 stored in the database 30 to the voice input through the voice input unit 12 to perform a function such as a multitrack or a sound card control.

The data processing unit 23 receives data on the state of the broadcast receiving device from the data input unit 13, displays the state of the broadcast receiving device, and powers the broadcast receiving device at the request of the user or by the broadcast reservation function. Control and manage the state of the broadcast receiving device by outputting a broadcast receiving device control command such as 'ON' or changing the broadcast channel.

In the meantime, when the wireless broadcasting system according to the present invention is applied to multimedia education, the central processing unit 20 may be configured to manage educator-designed images, implement and manage avatars for educators, and manage virtual education libraries. Performs functions such as real-time event occurrence processing using the event library.

In addition, the central processing unit 20 may record real-time training contents or create own training materials, manage libraries for voice modulation, integrate and transmit entire resources, monitor RF A / V-related equipment status, manage people or mail, Students perform attendance management, student management such as expense management, test bank, question management, test management such as grade management, video, audio and data compression management.

In addition, when the central processing unit 20 is connected to a streaming server to provide an Internet education service, the Internet service for an Internet service such as a website or video education material for an Internet service through the edited A / V stored in the database 30. Performs Internet service management functions such as automatic creation of contents, library update, server management, and data sharing.

The database 30 includes A / V data input through the image input unit 11 and the audio input unit 12, A / V data edited in real time by the central processing unit, or real time editing by the central processing unit 20, and the Internet. Text, image, video or sound data that can be updated at any time through the library 31 is stored.

The text library stores the data for subtitles and 3D effects, and the image library stores the imported files or imports characters, backgrounds, and themes.

NTSC (National Television Systems Committee) is input to the video library or existing files are imported and stored. Backgrounds and effect sounds are stored in the sound library.

The broadcast transmitter RF transmitter 40 and the broadcast receiver RF transmitter 50 are positioned at the broadcast transmitter and the broadcast receiver of the wireless broadcast section using the RF band, respectively, to transmit video, audio (A / V), and data. Integrated transmission, the detailed configuration of the RF transmission module (41, 51) and channel monitoring module (42, 2.4 GHz band 4-channel A / V and data transmission and reception module as shown in Figures 2 and 3 attached) 52, noise correction modules 43, 53 and control data management modules 44, 54.

First, the configuration of each part of the broadcast transmitting side RF transmitter 40 will be described with reference to FIG. 2. The RF transmitter module 41 includes the A / V and the central processor 20 edited by the central processor 20. ) Is transmitted to the broadcast receiving side by carrying the control command of the broadcast receiving equipment in the signal of a predetermined frequency.

The channel monitoring module 42 monitors the channel through which the edited A / V and broadcast reception equipment control command is transmitted through the RF transmission module 41 and the noise state of the channel.

The noise correction module 43 maintains an optimal channel through automatic channel change when noise occurs in a channel through the channel monitoring module 42, and the control data management module 44 transmits an RF from a broadcast receiver. After receiving the data on the state of the broadcast receiving device through the module 41 and transmitting the data to the central processing unit 20, the broadcast receiving device control command of the central processing unit 20 is transmitted to the broadcast receiving side.

Next, the RF transmission module 51 of the broadcast receiving side RF transmitter 50 shown in FIG. 3 is an A / V and broadcast reception equipment control command edited from the RF transmitting module 41 of the broadcast transmitting side. Receives a real-time broadcast through the broadcast receiving device, or controls the state of the broadcast receiving equipment, and transmits data on the state of the corresponding broadcast receiving equipment to the broadcast transmitting side.

The channel monitoring module 52 receives the A / V and the broadcast receiving device control command edited through the RF transmission module 51 and transmits data on the state of the broadcast receiving device and the noise of the channel. Monitor the status.

The noise correction module 53 maintains an optimal channel through automatic channel change when noise occurs in a channel through the channel monitoring module 52, and the control data management module 54 maintains the state of the broadcast receiving equipment. It transmits the data for to the broadcast transmitting side through the RF transmission module 51, and receives a broadcast receiving equipment control command from the broadcast transmitting side to control the state of the corresponding broadcast receiving equipment.

The operation of the radio broadcasting system using the RF band having the above configuration will be described in detail with reference to FIG. 3.

First, for the wireless broadcasting using the RF band, the database 30 is set to perform a reservation function or a cache function, and the central processing unit 20 is in a ready state (step S51).

Then, the image processing unit 21 or the audio processing unit 22 of the central processing unit 20 collects the real-time A / V captured or recorded by the broadcasting equipment installed in the field through the image input unit 11 or the audio input unit 12. Or collects A / V previously stored in the database 30.

Then, the data processing unit 23 collects data on the state of the broadcast receiving equipment input through the data input unit 13 (step S52).

Thereafter, the image processing unit 21 or the audio processing unit 22 selectively stores the collected video and audio in the database 30 without being edited according to a user's request, and then transmits the broadcast transmission side RF. It is transmitted through the unit 40 or edited in real time by using the various event libraries 31 and stored in the database 30 and transmitted at the same time.

The data processor 23 identifies the state of the broadcast receiving device through the collected data about the state of the broadcast receiving device and generates a predetermined broadcast receiving device control command, and then the broadcast transmitting side RF transmitter 40. The state of the broadcast receiving device is controlled by transmitting to the corresponding broadcast receiving device through the steps S53 and S54.

Then, the broadcast receiving side RF transmitter 50 located in the wireless broadcast receiving device in the wireless broadcasting section receives the video, audio, or broadcast receiving device control command and broadcasts in real time through a broadcast receiving device such as a TV or an amplifier, Data on the state of the broadcast reception equipment is transmitted to the broadcast transmission side (step S55).

In addition, the embodiments according to the present invention are not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

As described above, the present invention has the effect of enabling real-time wireless broadcasting with one simple operation through real-time editing using various event libraries and wireless transmission of video, audio, and data.

And, when the present invention is introduced into the education system, it is possible to learn at the same time in a number of educational sites allowed by the operation of a single educator and to perform the corresponding Q & A, and the concentration of education by education using various educational avatars (Avatar) And it can maximize the effectiveness of education, and it is possible to proceed with the smooth training of educators because the operation that properly uses the prepared materials during the training can be performed with a simple operation.

In addition, the digitization of all training data makes it easy to store and use materials, and enables real-time and recorded training, so that customized training corresponding to the environment can be implemented.

Furthermore, when web service is added, it is possible to repeat the learning by the occasional learning through the internet and by using the latest techniques through the various library updates through the internet, the fresh learning effect can be maintained at all times, and the wireless A / V transmission of the education studio and the education center It is easy to install and transfer broadcasting equipment.

Claims (6)

In the radio broadcasting system using the RF band, A data input unit for receiving data on the state of A / V and broadcast reception equipment photographed or recorded in the field; A database for storing the edited A / V, data on the broadcast receiving device status, and a broadcast receiving device control command, and storing text, image, moving picture, or sound data for enabling A / V editing in a library form; The A / V input through the data input unit is edited in real time through a library call stored in the database, stored in the database and then outputted, and performs data storage, setup management, and a plurality of user management functions through an authentication module. A central processing unit for storing and outputting a predetermined broadcast reception device control command in the database according to the data on the broadcast reception device status; A broadcast transmitter RF transmitter configured to transmit the edited A / V and broadcast receiver control commands outputted from the central processor to a broadcast receiver; Receives an edited A / V and broadcast receiving device control command transmitted from the broadcast transmitting side RF transmitter to perform real-time broadcasting through a broadcast receiving device, or broadcast receiving to control a corresponding broadcast receiving device according to the broadcast receiving device control command. A radio broadcasting system using an RF band comprising a side RF transmitter. The method of claim 1, When the central processing unit is connected to a streaming web server, the central processing unit automatically generates content for Internet service through the edited A / V stored in the database to provide an Internet service or perform a library update, server management, or data sharing function. Wireless broadcasting system using the RF band characterized in that. The method of claim 1, The broadcast transmitting side RF transmitting unit includes: an RF transmitting module configured to transmit the edited A / V and broadcast receiving equipment control command to a signal of a predetermined frequency to a broadcast receiving side; A channel monitoring module configured to monitor a channel on which the edited A / V and broadcast reception device control commands are transmitted through the RF transmission module and a noise state of the channel; A noise correction module configured to maintain an optimal channel through automatic channel change when noise occurs in a channel through the channel monitoring module; And a control data management module configured to receive data on a state of a broadcast receiving device from the broadcast receiving side through the RF transmitting module and transmit the data to the central processing unit, and then transmit a broadcast receiving device control command of the central processing unit to the broadcast receiving side. Wireless broadcasting system using the RF band, characterized in that made. The method of claim 1, The broadcast receiving side RF transmitter may receive the edited A / V and broadcast receiving device control command from the broadcast transmitting side to perform a real time broadcasting through a broadcast receiving device, or control the state of the broadcast receiving device and receive the broadcast. An RF transmission module for transmitting data on a state of equipment to a broadcast transmitting side; A channel monitoring module configured to monitor a channel in which the A / V and the broadcast reception device control command edited through the RF transmission module and data transmission on the state of the broadcast reception device are made and the noise state of the channel is monitored; A noise correction module configured to maintain an optimal channel through automatic channel change when noise occurs in a channel through the channel monitoring module; Control to transmit the data on the state of the broadcast reception equipment to the broadcast transmission side through the RF transmission module, and receive a broadcast reception equipment control command from the broadcast transmission side through the RF transmission module to control the state of the corresponding broadcast reception equipment. Wireless broadcasting system using the RF band, characterized in that comprising a data management module. In the radio broadcasting method using the RF band, Setting a database to perform a broadcast reservation function or a cache function and bringing the central processing unit into a ready state; Receiving, by the central processing unit, an A / V recorded or recorded by a wireless broadcasting device installed in a field or an A / V previously stored in the database; Editing the received A / V in real time through a library call stored in the database and transmitting the edited A / V to a broadcast receiving device; And receiving the edited A / V by the broadcast receiving device to perform real time broadcasting. The method of claim 5, Generating a predetermined broadcast reception device control command by receiving data on a device state from the broadcast reception device; And transmitting the generated broadcast reception device control command to a corresponding broadcast reception device to control a state of the broadcast reception device.