Multimedia information network on power line in village level

A multimedia information and multimedia technology, applied in the distribution line transmission system and other directions, can solve the problems of irregular power lines, backward technology, and inability to transmit digital phones, and achieve the effects of low initial construction cost, low maintenance cost, and easy expansion and upgrade.

Inactive Publication Date: 2010-08-18
张会庭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the early 1970s, I invented the "Power Line Multiplexed Telephone Network System", but its technology was outdated, and the frequency band was very narrow, so it could not transmit digital telephone, radio and television, and broadband computer Internet access.
In particular, the power lines in many rural areas are not standardized, especially the household power lines are not standardized, which directly affects the promotion of power line communication in rural areas

Method used

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  • Multimedia information network on power line in village level
  • Multimedia information network on power line in village level
  • Multimedia information network on power line in village level

Examples

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Embodiment Construction

[0018] In order to further illustrate the present invention, below in conjunction with embodiment is described in more detail.

[0019] Referring to the accompanying drawings in the specification, Figure 1 is a schematic diagram of a village-level low-voltage power line multimedia transmission system; the 10KV / 220V transformer in the figure is connected to the three-phase power lines A, B, C and 0 through a set of inductors in the load isolation network, and the three-phase Each phase A (or B or C) and 0 line in the power line form a 220V power supply line, and A-0, B-0, C-0 form three groups of 220V / 50HZ low-voltage power lines, which are respectively connected to each user. The low-voltage power lines in rural areas are usually overhead insulated wires, which are usually divided into the following three sections, including low-voltage power lines on the street, low-voltage power lines in lanes, and low-voltage power lines entering households. specification.

[0020] Power l...

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Abstract

Multimedia information station in village level is connected to multimedia transmitter receiver set of containing modem of power line carrier in village station. Using capacitance of isolation network connects power line. Through capacitance of isolation network, power line connects multimedia transmitter receiver set at user's sides. Normalized circuit for connecting to household or outdoor modem in high frequency for connecting to household is adopted for power line carrier. Through capacitance of isolation network for entering to household, power line carrier is connected to user's multimedia transmitter receiver set of containing modem of power line carrier. Guaranteeing power supply, the invention can accommodate TV, broadcasting, computer network, and telephone through multiplexing wideband modulation. The information network is compatible mode between digital and analog or in digital mode. Features are: low initial construction cost, and low maintenance cost.

Description

technical field [0001] The invention relates to a wired communication technology, in particular to a village-level power line multimedia information network. Background technique [0002] The use of low-voltage power lines to open power line carrier intercoms has long existed. Power line communication does not need to lay lines again, and the cost is low and the implementation is fast. It is a very promising communication method. In the early 1970s, I invented the "power line multiplexed telephone network system", but its technology was outdated, and its frequency band was very narrow, so it could not transmit digital telephone, radio and television, and broadband computer to the Internet. In particular, the power lines in many rural areas are not standardized, especially the household power lines are not standardized, which directly affects the promotion of power line communication in rural areas. Contents of the invention [0003] In order to make up for the above short...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54
Inventor 张会庭
Owner 张会庭
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