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
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0026] Example one , The present invention provides a communication message compression system between the master station and the concentrator of the electricity information collection system, such as figure 1 Shown.
[0027] Probability model: In this method, a multi-layer context-dependent probability model is used. It has the following characteristics. For a certain character to be encoded in the message, the outline of the context tree constructed step by step using the encoded string The information obtains the cumulative frequency of the characters to be encoded in each level of context. There are two mechanisms to calculate the predicted probability of the character.
[0028] The first is the back-off mechanism, which is to find whether the character to be encoded appears in the current long context, and if so, output the cumulative frequency of the character to be encoded and the cumulative frequency of the previous character. If it does not appear, output an escape chara...
Example Embodiment
[0032] Example two;
[0033] Such as figure 2 with 3 As shown, the present invention provides the communication environment of the method in the actual electricity consumption information collection system. For the convenience of description, only the parts related to the examples of the present invention are shown. The application communication environment of the present invention includes three parts, a concentrator, a remote communication channel, and a master station system. The concentrator is responsible for collecting and storing the electric energy data and power quality data of the meter connected under a platform. The master station system is responsible for issuing various request data, setting parameters, and control commands to the concentrator according to actual business needs.
[0034] Because the characteristic of the remote channel of the electricity information collection system is that the uplink channel traffic is much greater than the downlink traffic, the r...
Example Embodiment
[0036] Example three;
[0037] In the embodiment of the present invention, the data to be compressed is compressed online, that is, the message data can be compressed while being generated, without waiting for all the message data to be generated and then compressed, which reduces the transmission delay of the data inside the concentrator.
[0038] Such as Figure 4 As shown, the present invention provides a schematic flow diagram of a specific data compression algorithm, which is detailed as follows:
[0039] Step S1, initialize the search tree, and set the root node to be empty.
[0040] Step S2, obtain the next character S to be encoded.
[0041] Steps S3~S6, judge whether S is an escape character (whether the current context node has a child node, if so, output an escape character, add the character that appears in the current context to the excluded character set, and turn to the next shorter context At the node, execute S3~S6 in a loop until it is not an escape character.
[0042...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap