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Relay optimizing method of low-voltage carrier networking

An optimization method and carrier group technology, which are applied in harmonic reduction devices, data exchange networks, and AC networks to reduce harmonics/ripples, etc., can solve problems such as excessive harmonic coefficients of power grids, damage to users' household appliances, etc. Stability, solving the effect of grid harmonic coefficient exceeding the standard and avoiding harmonic pollution

Active Publication Date: 2010-09-15
HEXING ELECTRICAL
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Problems solved by technology

This technology can well solve the problems existing in the above two technologies, but the whole network also brings a difficulty to this technology, that is, it is easy to cause the harmonic coefficient of the power grid in a local range to exceed the standard, and damage the user's household appliances.

Method used

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  • Relay optimizing method of low-voltage carrier networking
  • Relay optimizing method of low-voltage carrier networking
  • Relay optimizing method of low-voltage carrier networking

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Embodiment

[0033]Firstly, it is explained that the present invention is based on the existing SFN network and the IEC61334 standard, on the basis of the SFN network and the IEC61334 standard, static and dynamic relay allocation is realized, so as to achieve the goal of optimization.

[0034] The automatic networking process defined in the IEC61334 standard is as follows: figure 1 as shown, figure 1 Shown is an example where a 3-level relay can satisfy the site topology. Before the networking, all the servers are relays, and if there is no MAC address, it is NEW. When the automatic networking starts, the client starts to discover the first-level nodes and assigns MAC addresses to the nodes according to the order of discovery. The first-level station in the figure There are 5, so assign MAC addresses 1-5. The client then discovers level 2 nodes and assigns them MAC addresses, followed by level 3 nodes. So far, the network topology has been formed. All nodes act as relays, avoiding the ...

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Abstract

The invention discloses a relay optimizing method of low-voltage carrier networking, which overcomes the defect in the conventional networking technology and effectively solves the problem that grid harmonic coefficients are out of limit due to full-network calling. In the invention, by using a method for partially calling, the relay configuration is optimized through static and dynamic allocation, and a route circuit with normal cut-off for improving the intensity of effective signals is utilized to find a key relay point so as to reduce relay nodes in the networking. The invention has novel technology, and can reduce the pollution of the grid harmonic waves in low network while the coverage of the original networking technology is ensured to be effective at the same time.

Description

technical field [0001] The invention relates to a scheme for low-voltage carrier communication, in particular to a scheme for optimizing the relay in the low-voltage carrier network. Background technique [0002] In recent years, with the development of electronic technology and communication technology, as well as a large amount of domestic and foreign capital injection, a major breakthrough has been made in the scientific research on low-voltage carrier channel, which has created conditions for the maturity of low-voltage power carrier communication technology. But as far as the current low-voltage carrier communication is concerned, there are still technical bottlenecks, such as attenuation, interference and dynamic changes, which are all key factors restricting the development of low-voltage carrier communication. The adoption of spread spectrum technology, multi-carrier modulation, adaptive frequency modulation technology and orthogonal frequency division multiplexing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H02J3/01H04L12/24
CPCY02E40/40
Inventor 周良璋姚青葛宗光刘鹏
Owner HEXING ELECTRICAL
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