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Network communication system, method and device based on power line

A technology of network communication and power line, applied in the field of communication, can solve the problems of low applicability of correction results and failure to combine channel specific conditions, etc.

Pending Publication Date: 2020-01-17
华青智建科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It iteratively calculates the power line communication signal filter according to the transformation result, and then corrects the transformation result. Similarly, it only performs correction based on the transformation of a single path, without combining the specific conditions of the channel, and then corrects the self-adaptation, resulting in the correction result being applicable Sex is not high

Method used

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  • Network communication system, method and device based on power line
  • Network communication system, method and device based on power line
  • Network communication system, method and device based on power line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 1 , figure 2 and image 3 Shown, a kind of network communication system based on electric power line, described system comprises:

[0065] The control center is used to issue control commands to control the wire channel selected for data transmission;

[0066] The data base station is used to receive the remote data and send the data according to the command of the control center;

[0067] An adaptive modulation sending end, used for adaptive modulation of the data sent by the data base station;

[0068] A step-down transformer for stepping down the wire channel;

[0069] The first data encryption device is used to encrypt the data sent to the first wire channel for the first time;

[0070] The second data encryption device is used to encrypt the data sent to the second wire channel for the second time;

[0071] The 3rd data encryption device, is used for carrying out the 3rd encryption to the data sent on the 3rd telecommunication channel;

[007...

Embodiment 2

[0079] Such as figure 1 and Figure 4 Shown, a kind of network communication method based on power line, described method carries out the following steps:

[0080] Step 1: The control center issues a control command to control the wire channel selected for data transmission;

[0081] Step 2: The data base station receives the remote data, and sends the data according to the command of the control center;

[0082] Step 3: The adaptive modulation transmitter performs adaptive modulation on the data sent by the data rack station, and the modulated data enters the wire channel;

[0083] Step 4: If the control command of the control center controls data transmission, the first wire channel is selected; the data sent to the first wire channel is encrypted for the first time, and then step 7 is performed;

[0084] Step 5: If the control command of the control center controls data transmission, the second wire channel is selected; the data sent to the first wire channel is encrypte...

Embodiment 4

[0111] On the basis of the previous embodiment, the described encryption for the first time, the method for encrypting for the second time and encrypting for the third time all perform the following steps:

[0112] Step A1: Use the SAES encryption algorithm to generate the AES initial key; expand the AES initial key to obtain the AES encryption key; according to the AES encryption algorithm, use the AES encryption key to encrypt the information to be encrypted;

[0113] Wherein, in the process of using the SAES encryption algorithm to generate the AES initial key: configure the SAES initial key and SAES plaintext; carry out SAES key processing on the SAES initial key to obtain the processing result; perform key expansion on the processing result to obtain SAES encryption key; according to the SAES encryption algorithm, use the SAES encryption key to encrypt the SAES plaintext to generate the AES initial key.

[0114] Wherein, carrying out SAES key processing to SAES initial ke...

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Abstract

The invention belongs to the technical field of communication, and particularly relates to a network communication system, method and device based on a power line. The system comprises a control center which is used for sending a control command and controlling a wire channel selected during data transmission; the data base station is used for receiving far-end data and sending the data accordingto a command of the control center; the self-adaptive modulation sending end is used for carrying out self-adaptive modulation on the data sent by the data base station; the step-down transformer is used for carrying out step-down on the electric wire channel, and the first data encryption device is used for carrying out first encryption on data sent to the first electric wire channel; the seconddata encryption device is used for carrying out secondary encryption on the data sent to the second electric wire channel; and the third data encryption device is used for encrypting the data sent tothe third telecommunication channel for the third time. And the method has the advantages of high safety and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a power line-based network communication system, method and device. Background technique [0002] Power Line Communication (PLC) technology refers to a communication method that uses power lines to transmit data and media signals. This technology is to load the high frequency carrying information on the current and then use the wire to transmit the adapter that receives the information, and then separate the high frequency from the current and transmit it to the computer or telephone to realize the information transmission. [0003] The full name of power line communication is power line carrier (Power Line Carrier–PLC) communication, which refers to the use of high-voltage power lines (in the field of power carrier, usually refer to voltage levels of 35kV and above), medium-voltage power lines (referring to 10kV voltage levels) or low-voltage distribution lines...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04B3/56H04L9/06H04L1/00H04L27/26
CPCH04B3/542H04B3/56H04L9/0631H04L1/0071H04L27/2695H04B2203/5462
Inventor 张银辉
Owner 华青智建科技有限公司
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