RU13736U1 - LOCAL INTERACTIVE INFORMATION NETWORK - Google Patents

Abstract

Local interactive information network, including sources of television signals, an output adder, a main amplifier, cable distribution network, characterized in that there are additional return lines of communication, a switch and decoders of reverse control signals of the television station, TVs are used as information display devices, and as control panels - telephone sets.

Description

The Poleschi medal belongs to technical training tools, namely to information television networks, multimedia systems, and thanks to the interactive mode, it can work with training programs, digital data banks, video information on cassettes and optical discs, and graphic information. Designed to serve the educational process, lectures, conferences, seminars, etc.

Local information networks are known, for example, computer networks for automating institutional activities, automating production and technological processes, and automating scientific research. Such networks are created within the same organization. Widespread local television networks designed to transmit broadcast and studio television signals 1,2.

An OptiKat interactive cable television system was adopted as a prototype. It includes a headend that provides all types of signals transmitted to the cable network and has reverse transmission channel information from the subscriber to the headend. The station includes transmitters of basic information and receivers of reverse

channel. Network subscribers are provided with telephone communication,

the ability to access information networks. The headend provides satellite reception of television broadcasting programs, terrestrial television broadcasting, and broadcasting. Contains interfaces for access to the telephone network, computer information network 3.

The prototype does not provide remote control of the technical means of the television station.

The utility model allows, using standard equipment and communications, to apply modern information technologies, including multimedia technologies, for the educational process.

This is achieved by the fact that the local interactive information network contains sources of television signals, an output adder, a main amplifier, a cable distribution network, characterized in that there are additional return lines of communication, a switch and decoders of the reverse control signals of the television station. Televisions were used as information display devices, and telephones as control panels.

In FIG. 1 shows a block diagram of a network.

Figure 2 - remote control.

The local interactive information network contains telephones 1, a communication line 2, a switch 3, control signal decoders 4, video recorders 5, a personal computer control decoder 6 made in the form of a separate unit 7. Modulators 8 are designed to generate a standard television signal. The output adder 9, the main amplifier 10, the main coaxial cable 11, the couplers 12 are used to broadcast television signals to the televisions 13. An amplifier for the broadcast television signals 14, a satellite television broadcast receiver 15 are also connected to the output adder 15. For telephone communications

A telephone 16 is intended for subscribers. The switch has a built-in power supply 17 and call signal decoder 18. The information networks are accessed via the telephone line of the city telephone exchange 19 through a modem 20. The control television 21 is connected to the output adder. Station technical facilities - 22.

Due to the presence of a reverse (reverse) communication channel, an interactive mode of working with video information sources (training programs, digital databases, video information on cassettes and optical disks) is organized.

The device operates as follows. The station operator, at the request of the subscriber, pre-installs the necessary video material, connects the necessary device 4.7 through the switch 3, and also reports the number of the television channel on which the video information will be broadcast. The subscriber transmits control commands with the telephone keypad. Commands are formed in a standard two-tone code, transmitted over communication line 2 to switch 3, decoded by decoders of reverse control signals 4.7 and fed to the selected source of video information 5.6.

Remote control video recorders 5 - includes five commands (figure 2): rewind - button “1 of the telephone, playback -“ 2, fast forward - “3, pause -“ 4, stop - “5. Remote control of the computer - six commands duplicating the manipulator “Mouse: moving the cursor to the left - button“ 7, moving up - “8, moving right -“ 9, moving down “Oh, the left key of the manipulator -“, the right key of the mouse - “#. Button "6 - call the operator. The video signals of the video sources are converted by modulators 8 into a standard television signal. The television signals of the modulators through the adder 9 are fed to the control TV 21, the main

amplifier 10 and further into the cable network P. Ogvetvnteli 12 distribute a group television signal to subscribers.

The personal computer b is designed to play video information from optical disks, work with educational programs, digital databases of old, as well as work days in information networks via telephone line 19 and modem 20.

The integrated interactive information network meets the demand of the Russian state-of-the-art development of modern information technologies, which should be implemented in conditions of limited material resources. The economic feasibility of deploying a network follows from a comparison of the cost of equipment for subscribers (TV, telephone) and technical equipment of a station serving any number of subscribers. The coefficient of use of expensive equipment is increasing, access to video materials and data libraries is simplified, WHAT is necessary for educational organizations.

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Authors: Volkov A. V.

Simakov Yu.A. Uvarov A.V.

List of used literature:

1. Samoilenko SI, Seta Computer Moscow Science 1986.

2. Anufriev IK, Byschrushki and KJL et al. Television-based multimedia (theses of the international conference on the centennial of the use of electromagnetic waves to transmit messages and the origin of radio engineering. 50th scientific session dedicated to Radio Day, 5-7.05.95.) - Moscow: publishing company of the editorial office of the journal "Radio Engineering 1995, Volume 2, pp. 157-158.

3. Peskov S., Tatsnsko V., Integrated integration optical-coaxial cable television system based on equipment of H1RSCHMAN company, “Radio 1998 No. 5 p. 70-72.

Claims (1)

Local interactive information network, including sources of television signals, an output adder, a main amplifier, cable distribution network, characterized in that there are additional return lines, a switch and decoders for reverse control signals of the television station, TVs are used as information display devices, and as control panels - telephone sets.