Network data conversion device based on power line carrier communication

Abstract

The invention relates to a carrier communication device, in particular to a network data conversion device based on power line carrier communication. Signal transmission of a broadband communication network and a narrow-band communication network is connected to enable the broadband communication network and the narrow-band communication network to be mutually communicated, the defects of original high-speed channels and low-speed channels are overcome and the communication success rate and the communication reliability are improved; two kinds of communication networks are compatible, the problem of transmission between the two kinds of communication networks is solved, the integrated compatible application between the broadband communication network and the narrow-band communication network is realized, the management procedure is simplified, the management cost is reduced, the construction cost is reduced and the device has a great significance to the development of the field.

Description

technical field [0001] The invention relates to a carrier communication device, in particular to a network data conversion device based on power line carrier communication. Background technique [0002] In the prior art, there are mainly two methods based on power line carrier communication: one is to use a low-speed power line communication architecture with a frequency of 7KHZ-500KHZ, which is a narrowband communication method. The communication rate of this method is very low, usually less than 9600bps, generally Only 1200bps, because the signal-to-noise ratio of power line communication is difficult to be stable in the changing power consumption environment, it cannot be well guaranteed, so the success rate of communication is low and the reliability is poor, but the transmission distance is long, up to a kilometer. [0003] Another method based on power carrier communication is to use broadband communication and use orthogonal frequency division technology (OFDM). The ...

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Problems solved by technology

[0002] In the prior art, there are mainly two methods based on power line carrier communication: one is to use a low-speed power line communication architecture with a frequency of 7KHZ-500KHZ, which is a narrowband communication method. The communication rate of this method is very low, usually less than 9600bps, generally Only 1200bps, because the signal-to-noise ratio of power line communication is difficult to be stable in the changing power consumption environment, it cannot be well guaranteed, so the success rate of communication is low and the reliability is poor, but the transmission distance is long, up to a kilometer

[0003] Another method based on power carrier communication is to use broadband communication and use orthogonal frequency division technology (OFDM). The frequency of high-speed communication is high, and its attenuation is also large in the communication frequency band. Usually, it can only guarantee reliable communication within a distance of 300 meters, and the high-speed communication network has high requirements for its corresponding communication products, so the cost is also high.

[0004] The above two methods are currently technically incompatible, and are currently independent. Facing various fields of power line communication, they only choose to install a high-speed communication system or a low-speed communication system according to the communication technology direction of the implementation party, but for management It is very inconvenient for the department to install two sets of management systems, which are not compatible with each other; on the other hand, the high-speed communication network and the low-speed communication network have their own advantages, but both have certain shortcomings. It is difficult for the high-speed communication network to guarantee long-distance reliable communication, while the low-speed communication network can communicate over long distances but cannot guarantee its communication success rate

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