Remote channel message compression method and system for electricity consumption collection system
A technology for collecting system and power consumption information, applied in transmission system, digital transmission system, adjusting channel coding and other directions, can solve the problems of data real-time cannot be guaranteed, consume a lot of time, transmission delay is large, etc., to reduce algorithm steps, The effect of high compression effect and low implementation cost
Inactive Publication Date: 2016-05-04
CHONGQING UNIV OF POSTS & TELECOMM
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The invention discloses a remote channel message compression method and system for an electricity consumption collection system. The remote channel message compression method comprises the steps that: a master station issues a command to a concentrator, the concentrator responds to the command to the master station and generates an uplink message, the concentrator compresses the uplink message and transmits the compressed uplink message to the master station, and after receiving the compressed uplink message, the master station carries out a decompression process; and a downlink message transmission process from the master station to the concentrator is an inverse process. Online modeling is carried out according to the distribution properties of contexts in the orders of the uplink message; a symbol probability of a next arrival character according to context information established in a probability distribution model, and the symbol probability is encoded and output; and the distribution properties of the contexts in the orders according to encoded characters, and the probability distribution model is adaptively updated. By adopting the remote channel message compression method and system disclosed by the technical scheme of the invention, the data transmission delay of a remote channel of the electricity consumption collection system is shortened, the data transmission efficiency is improved, the remote channel communication bandwidth is saved, and the data transmission cost between the master station and the concentrator is reduced.
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