Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The communication volume is very large, and the data transmission to the master station takes a lot of time
The power grid department not only needs to pay high operating costs, but also has low communication rates, large transmission delays, and sometimes real-time data cannot be guaranteed
It is not suitable for the requirements of high efficiency, reliability and safety in the process of message transmission in the application information collection system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Remote channel message compression method and system for electricity consumption collection system
  • Remote channel message compression method and system for electricity consumption collection system
  • Remote channel message compression method and system for electricity consumption collection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment one , the present invention provides a communication message compression system used between the main station and the concentrator of the power consumption information collection system, such as figure 1 shown.

[0027] Probability model: a multi-layer context-dependent probability model is used in this method, which mainly has the following characteristics. For a certain character to be encoded in the message, the outline of the context tree gradually constructed by using the encoded string The information obtains the cumulative frequency of the character to be encoded in each order of context. There are two mechanisms for calculating the predicted probability of the character.

[0028] The first is a fallback mechanism, that is, to find out 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 not presen...

Embodiment 2

[0033] Such as figure 2 with 3As shown, the present invention provides the communication environment of the method in the actual power consumption information collection system. For convenience of description, only the parts related to the example of the present invention are shown. The application communication environment of the present invention includes three parts, the concentrator, the remote communication channel, and the main station system. The concentrator is responsible for collecting and storing the power energy data and power quality data of the connected electric meters in a station area, and the master station system is responsible for sending 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 power consumption information collection system is that the traffic volume of the uplink channel is much greater than the traffic volume o...

Embodiment 3

[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 before being 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 chart of a specific data compression algorithm, which is described in detail 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 child nodes, if so, output an escape character, add the characters appearing in the current context to the excluded character set, and turn to the next shorter context Node, execute S3~S6 in a loop until it is not an escape character.

[0042] Step S7...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

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.

Description

technical field [0001] The invention relates to the field of remote channel message compression in an electricity information collection system, and belongs to the technical field of lossless compression of message data in electric power systems. Background technique [0002] The communication between the master station system and the concentrator is an important part of the power consumption information collection system. The communication downlink message can be that the master station requests various data, query parameters, control commands, etc. from the concentrator. Its most common uplink messages are generally various real-time data and historical (frozen, curve) data in response to the survey. When the data of the uplink message is large, the message will be divided into multiple frames for transmission, and each frame follows the GW376.1 communication protocol, and each frame has the same data structure, so there is certain redundant information. On the other hand...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L1/00H04B17/391
CPCH04L1/0009H04L1/001
Inventor 王毅刘恒陈前斌段大程张方园
Owner CHONGQING UNIV OF POSTS & TELECOMM
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com