Data transmission method and apparatus
A data transmission method and data technology, applied in the field of communication, can solve problems such as multi-buffer capacity of node devices, reduce device processing speed, and occupy large bandwidth resources, so as to improve the reliability of data interaction, cope with unpredictable interference, and improve data quality. The effect of transmission efficiency
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[0027] The embodiment of the present invention provides a data transmission method and device, which are used to establish a frequency hopping-retransmission mechanism in a CPF of a superframe, and accordingly switch channels for data transmission, shorten the switching period, and improve the processing speed of the device. Respond to unpredictable interference in a timely manner and improve the reliability of data interaction.
[0028] Typical application scenarios of the technical solutions provided in the embodiments of the present invention are as follows: figure 1 As shown, a star topology structure is formed between the home gateway and the meter nodes in the meter reading system, and a personal area network is formed with the family as the unit. Each home has a home gateway, and the water meter, gas meter, and other traditional The sensor nodes and the data of the electric meter nodes at the power well are copied together and uploaded to the central computer of the com...
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