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Self-adaptive method for controlling collision domain in power line carrier communication

A carrier communication and power line technology, applied in distribution line transmission system, line transmission components, reducing crosstalk, etc., can solve problems such as low data transmission efficiency, increase the range of conflict domains between nodes, and carrier monitoring collisions, etc., to avoid The effect of signal-to-noise ratio errors, improved accuracy, and reduced collision rate

Inactive Publication Date: 2018-09-11
WU QI TECH INC +1
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Problems solved by technology

[0005] In the existing power line carrier communication process, fixed transmission power is used, and the fixed transmission power between nodes is often not necessarily the transmission power with the best communication quality, which will increase the scope of the collision domain between nodes, which will cause carrier Severe monitoring collisions lead to low data transmission efficiency. In this case, it is very important to control the scope of the collision domain by dynamically adjusting the transmission power

Method used

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  • Self-adaptive method for controlling collision domain in power line carrier communication
  • Self-adaptive method for controlling collision domain in power line carrier communication

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Embodiment Construction

[0048] Further detailed explanation through specific implementation mode below:

[0049] Such as figure 1 and figure 2 As shown, the adaptive method for controlling the collision domain in the power line carrier communication of the present invention includes the following steps:

[0050] Networking steps: the slave node is powered on with the preset transmit power to form a network; specifically, the devices of the slave node and the relay node to be networked are powered on at the same time, and the slave node sends the group with the preset transmit power and in the form of broadcast Network command, the relay node receiving the networking command completes the networking with the slave node;

[0051] The step of determining the adjustment amount: the slave node receives the feedback information of the relay node whose networking is completed, and when the variable in the feedback information reaches the preset threshold, the adjustment amount is determined according to ...

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Abstract

The invention discloses a self-adaptive method for controlling a collision domain in power line carrier communication, and relates to the technical field of power line carrier communication. The self-adaptive method comprises: a networking step in which a slave node is powered up and networked with a preset transmitting power; an adjustment amount determining step in which the slave node receivesfeedback information of a relay node after networking, and when a variable in the feedback information reaches a preset threshold value, the slave node determines an adjustment amount according to thevariable; and a dynamic adjustment step in which the slave node dynamically adjusts the transmitting power according to the adjustment amount. The self-adaptive method of the invention solves the problem of high collision rate of carrier monitoring between nodes caused by fixed transmitting power, and is mainly used for controlling the collision domain in the power line carrier communication.

Description

technical field [0001] The invention relates to the technical field of power line carrier communication, in particular to an adaptive method for controlling conflict domains in power line carrier communication. Background technique [0002] Power carrier communication is PLC, a power system communication that uses transmission lines as the transmission medium of carrier signals. Power carrier is a unique communication method for power systems. Transmission technology. The biggest feature is that there is no need to re-establish the network, as long as there are wires, data transmission can be carried out. With the full development of the national smart grid and the Internet of Things, power line carrier communication technology has been widely promoted and applied by virtue of the advantages of power line natural resources, and has become the most important communication method for local access to smart grids. [0003] At present, the broadband meter reading system based o...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04B3/32
CPCH04B3/32H04B3/54
Inventor 吴限刘朋飞
Owner WU QI TECH INC
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