Power line carrier communication system supporting long-distance transmission

A technology of power carrier communication and power carrier, applied in transmission systems, wired transmission systems, distribution line transmission systems, etc., to achieve the effects of cost reduction, low power consumption, and simple system design

CN110365369AActive Publication Date: 2019-10-22磐基技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-10-22

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Abstract

A power line carrier communication system supporting long-distance transmission comprises a first power line carrier communication module, a second power line carrier communication module, a power line carrier filtering device and a power line carrier modulation device. The first power line carrier communication module and the second power line carrier communication module are connected with eachother. A power detection module and a power line carrier communication signal amplification module are arranged in each power line carrier communication module; the first power line carrier communication module and the second power line carrier communication module are connected with power line carrier filtering devices, and each power line carrier filtering device is connected with a power line carrier modulation device. Optionally, when a plurality of ports exist, a combiner or a shunt needs to be introduced to connect signals of a plurality of input ports or output ports. By introducing thepower line carrier communication signal relay device, since an application processing module structure can be removed, the relay of the power line carrier signal can be completed only by using the signal processing circuit of the communication processor, the system design is simpler, the cost is reduced, and the power consumption is lower.
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Description

technical field

[0001] The invention belongs to the technical field of power line carrier communication, in particular to a power carrier communication system supporting long-distance transmission. Background technique

[0002] The closest existing technology to this technology is the power line carrier communication technology. In the power carrier communication technology, the power carrier communication signal for transmitting data is modulated onto a 0-50MHz high-frequency modulation signal, and this high-frequency modulation signal is superimposed on the power line The 50Hz low-frequency AC power signal constitutes a power carrier signal, which is transmitted to other terminals of the power system along with the power cable.

[0003] The main application scenario of the traditional power carrier communication technology is the power modem to access the Internet. The indoor Internet terminal modulates the signal into a power carrier signal through the power modem, and tr...

Examples

Embodiment Construction

[0023] The present invention is further described below in conjunction with accompanying drawing:

[0024] see figure 2 , a power carrier communication system supporting long-distance transmission, comprising a first power carrier communication module, a second power carrier communication module, a power carrier filtering device, and a power carrier filtering device; the first power carrier communication module and the second power carrier communication Module connection, both the first power carrier communication module and the second power carrier communication module are connected to the power carrier filtering device, and each power carrier filtering device is connected to the power carrier modulation device.

[0025] The first power carrier communication module includes a power carrier communication signal amplification module, a power detection module, and a circulator; the circulator, power detection module, and power carrier communication signal amplification module a...