Standard spider-web fractal networking method for low voltage power line communication

A low-voltage power line and cobweb technology, which is applied in the field of low-voltage power line communication quasi-cobweb fractal networking, can solve the problems of complex networking mechanism, low networking efficiency, long networking time, etc., and achieves low networking complexity and efficient networking. , the effect of small amount of calculation

Inactive Publication Date: 2016-02-17
HARBIN INST OF TECH
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Problems solved by technology

[0010] 3) The prominent problem of the existing ant group networking method is that the networking mechanism is relatively comple

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  • Standard spider-web fractal networking method for low voltage power line communication
  • Standard spider-web fractal networking method for low voltage power line communication
  • Standard spider-web fractal networking method for low voltage power line communication

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specific Embodiment approach 1

[0053] Specific Embodiments 1. Quasi-spiderweb fractal networking method for low-voltage power line communication. In a low-voltage power line carrier communication system, the quasi-spiderweb hierarchical fractal networking method can realize the networking process of nodes in the network. The quasi-stereo spider web model is composed of master nodes and slave nodes. Slave nodes include relay nodes and terminal nodes, such as Figures 1 to 3 shown. Compared with the planar cobweb model, this model can more accurately reflect the topological structure of the real low-voltage power line network, so the present invention equates the low-voltage power line communication logic network into a network composed of multiple single-layer quasi-stereo cobwebs, such as Figures 4 to 5 shown.

[0054] In order to effectively explain the hierarchical fractal networking method of the quasi-spider web, the function of the node time slot is firstly explained.

[0055] Each node in the networ...

specific Embodiment

[0070] The networking process of the quasi-spider-web fractal network for low-voltage power line carrier communication can be realized by the following method.

[0071] First, the master node allocates two time slots for itself. In the first time slot, the master node will correct the frequency offset with the slave node. In the second time slot, the master node will send a data frame allowing the node to register to the slave nodes within the communication range. When the slave node is successfully registered, the master node will respond. In the aggregation area, the master node stores the registered slave nodes in the topology table and assigns them TEIs. After the aggregation process is over, the master node allocates time slots to the registered slave nodes, and the slave nodes that obtain the time slots start networking according to the order of time slot allocation. In the first time slot, the slave node performs frequency offset correction with other slave nodes with...

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Abstract

The invention provides a standard spider-web fractal networking method for low voltage power line communication, and relates to a standard spider-web fractal networking technology for low voltage power line communication. The standard spider-web fractal networking method for low voltage power line communication solves the problem that a current networking method has the disadvantages of being low in the networking efficiency, being low in the reliability and being low in survivability. The method comprises: a main node distributes two time slots for the main node, and then in the first time slot, the main node corrects the frequency offset between the main node and slave nodes. In the second time slot, the main node sends a data frame allowing registration of nodes to the slave nodes within the communication range. When the nodes register successfully, the main node can give a response. In a convergence area, the main node stores the registered slave nodes in a topology table and distributes TEI for the slave nodes. When the convergence process completes, the main node distributes time slots for the registered slave nodes, and the slave nodes which acquire the time slots can perform networking according to the distribution sequence of time slots. The standard spider-web fractal networking method for low voltage power line communication is suitable for a low voltage power line communication field.

Description

technical field [0001] The invention relates to a quasi-spider web fractal networking technology for low-voltage power line communication. Background technique [0002] With the continuous improvement of low-voltage power line carrier communication networking efficiency and network reliability requirements, the current networking algorithms, such as flooding algorithm, clustering algorithm, ant colony algorithm, planar spider algorithm, etc., also have the following problems : [0003] 1. The more prominent problem of flooding networking method at this stage is: when the number of nodes in the network increases, the probability of collision of networking frames received by nodes will increase, resulting in relatively low networking efficiency between nodes. [0004] 2. The clustering network method is that after the source node selects the cluster head node by a certain mechanism, the remaining nodes are gradually networked through the cluster head node. However, there are...

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Application Information

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IPC IPC(8): H04B3/54
CPCH04B3/54H04B3/544
Inventor 刘晓胜崔莹刘佳生姚友素张芮刘浩徐殿国
Owner HARBIN INST OF TECH
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