OFDM power line carrier communication system and a device access method thereof

A power line carrier and communication system technology, applied in the field of power lines, can solve problems such as complex equipment access testing and joint debugging, high maintenance costs for system manufacturers, and high development costs for equipment manufacturers, so as to shorten the on-line cycle, reduce development costs, and reduce maintenance cost effect

Inactive Publication Date: 2018-12-21
EASTCOMPEACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an OFDM power line carrier communication system and its equipment access method, which overcomes the defects of the prior art, such as high development costs for equipment vendors, high maintenance costs for system vendors, complex equipment access testing and joint debugging, etc.

Method used

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  • OFDM power line carrier communication system and a device access method thereof
  • OFDM power line carrier communication system and a device access method thereof
  • OFDM power line carrier communication system and a device access method thereof

Examples

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Embodiment 1

[0033] This embodiment provides an OFDM power line carrier communication system, which includes a server and equipment.

[0034] Wherein, the server includes: communication protocol middleware, a first power carrier module and an access management unit;

[0035] Communication protocol middleware, which stores a variety of device communication protocols, realizes the communication protocol conversion processing of the data information interacted between the server and the device, specifically: used to convert the communication protocol of the data information from the device to the communication supported by the end protocol, and convert the communication protocol of the data information to be sent to the device at the local end into the communication protocol of the corresponding device;

[0036] The first power carrier module is used to perform OFDM modulation or demodulation on the data signal exchanged between the server and the device, so as to realize the OFDM power line ...

Embodiment 2

[0045] see figure 1 , the present embodiment provides a device access method for an OFDM power line carrier communication system, the method comprising steps:

[0046] In step 101, the device provides a device description template carrying device-related information to the server, so as to request access to the system.

[0047] Among them, the device description template is generated by the system vendor and provided to each device vendor in advance. At the initial moment, it does not carry specific device-related information, but only includes the information agreed by the system vendor to the device vendor. An information item name (equipment vendor name, equipment type, data interface, etc.).

[0048] When access to the system is required, the device completes the information of each information item in the device description template, and then sends the device description template to the server through OFDM power line carrier communication.

[0049]Step 102: After receiv...

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Abstract

The invention relates to the technical field of communication, and discloses an OFDM power line carrier communication system and a device access method thereof. The device access method comprises thefollowing steps: the device provides a device description template carrying device-related information to a server through OFDM power line carrier communication; the server authenticates the equipmentaccording to the relevant information of the equipment. If the authentication is passed, the equipment parameters are allocated to the equipment, and the equipment parameters are added to the equipment description template, and then sent to the equipment through OFDM power line carrier communication. The device configures the parameters according to the device parameters, and then interacts withthe server according to the device communication protocol of the local terminal, and the server performs communication protocol conversion processing on the interacted data information in the interaction process. In the embodiment of the invention, the development cost of the equipment supplier, the maintenance cost of the system supplier and the complexity of the equipment access test and the joint debugging are reduced, and the on-line period of the equipment is shortened.

Description

technical field [0001] The present invention relates to the field of power line technology, in particular to an OFDM power line carrier communication system and a device access method thereof. Background technique [0002] The power line carrier communication technology utilizes the existing low-voltage power supply lines to realize data transmission, which has the advantages of no need for rewiring, saving system construction costs, and being practical and convenient. However, due to the characteristics of low-voltage power line line impedance, large attenuation, strong interference, and large noise, the traditional FSK modulation method can only achieve a communication rate below 500bps, and has great limitations in the ability to resist frequency selective interference. There are few successful applications in the field of power line carrier communication. [0003] With the development of technology, OFDM orthogonal multi-carrier modulation technology with the ability of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04B3/54
CPCH04B3/542H04L27/2601
Inventor 刘欣春黄小鹏杨军赵子渊李娜骆永刚
Owner EASTCOMPEACE TECH
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