Network data conversion device based on power line carrier communication and conversion method thereof

Abstract

The invention relates to a carrier communication device and a method thereof, in particular to a network data conversion device based on power line carrier communication and a conversion method thereof. The invention provides the network data conversion device based on power line carrier communication and the conversion method thereof. The signal transmissions of the wide-band communication network and the narrow-band communication network are connected and communicated with each other, thereby overcoming the shortages of the original high-speed communication and low-speed communication, and improving the communication success rate and the communication reliability; the two communication networks are compatible, thereby solving the transmission problem between the two communication networks, achieving the integrative compatibility operation between the two communication networks, simplifying the manage program, reducing the manage cost and saving the construction cost; and the invention has important meanings in the development of the field.

Description

technical field [0001] The invention relates to a carrier communication device and a method thereof, in particular to a network data conversion device and a conversion method 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, using orthogonal...

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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, using orthogonal frequency division technology (OFDM), the frequency is 2MHZ-30MHZ, its communication rate is greater than 10Mbps, can reach more than 200Mbps, and the communication success rate is extremely high, but due to 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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