Data frame processing method for adaptive networking and device thereof
A data frame, self-adaptive technology, applied in digital transmission systems, electrical components, error prevention and other directions, can solve the problems of collision, bandwidth waste, crosstalk between stations, etc., to reduce the effect of repeated messages
Active Publication Date: 2014-03-26
STATE GRID CORP OF CHINA +2
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However, because each node that receives a message has to spread out in this way, a large number of repeated messages are generated, which wastes bandwidth, and also causes a large number of conflicts and collisions, resulting in long copying time, low success rate, and low Crosstalk and other issues
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[0043] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0044] like figure 1 Shown is a preferred embodiment of a data frame processing method for adaptive networking proposed by the present invention, and the method is mainly used for implementation in slave nodes. Specifically, the method includes the following steps:
[0045] Step S11: According to the sequence number and direction of the last processed first data frame stored in advance, determine whether the second data frame currently received is a repeated frame;
[0046] Step S12: When the second data frame is not a repeated frame, determine whether the second data frame is a downlink frame;
[0047] Step S13: When the second data frame is a downlink frame, jud...
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The invention discloses a data frame processing method for adaptive networking and a device thereof. The method comprises a step of judging whether a currently received second data frame is a repeated frame, a step of judging whether the received data frame is a downlink frame if the received data frame is not a repeated frame, a step of judging whether the number of the frame is larger than the number of a first data frame if the received data frame is the downlink frame, judging whether a forwarded number is less than a preset maximum value if so, forwarding the second data frame if so, and adding 1 to the forwarded time at the same time, and a step of judging whether the direction of the first data frame is the downlink frame and whether the number of the second data frame is equal to the number of the first data frame if the received second data frame is not the downlink frame, judging whether the forwarded number is less than a preset maximum value if so, forwarding the second data frame if so, and adding 1 to the forwarded time at the same time. According to the method and the device, a step of judging whether the data frame is a repeated frame or not, a step of judging an uplink data frame and a downlink data frame which are needed to be forwarded and the restriction of a forwarding time are added, and duplicated messages in adaptive networking can be reduced.
Description
technical field [0001] The invention relates to the field of power line carrier communication, in particular to a data frame processing method and device for adaptive networking. Background technique [0002] Power-line carrier communication (Power-line Carrier Communication, PLC) is the main communication method of the current electricity consumption information collection system. In the electricity consumption information collection system, PLC can be used to complete the communication between residential users and distribution transformers, and complete data collection. And cost control and other functional applications. Power line carrier communication initially adopts a point-to-point direct communication method, that is, direct communication between the concentrator and the user's meter completes data exchange. However, due to the large number of PLC communication nodes and complex structure, point-to-point communication is far from meeting the requirements of network...
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Inventor 王东山李明维齐永忠
Owner STATE GRID CORP OF CHINA