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Cascaded power line carrier wave method and device

A technology of power line carrier and communication device, which is applied in the field of cascaded power line carrier communication method and device, can solve the problems of low utilization rate and low communication bandwidth speed, and achieve the effect of improving utilization rate, simple frame structure and improving communication bandwidth

Inactive Publication Date: 2017-01-25
SUNGROW POWER SUPPLY CO LTD
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Problems solved by technology

[0005] The present invention provides a cascaded power line carrier communication method and device to solve the problems of low communication bandwidth speed and low utilization rate in the prior art

Method used

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  • Cascaded power line carrier wave method and device
  • Cascaded power line carrier wave method and device
  • Cascaded power line carrier wave method and device

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Embodiment Construction

[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] The invention provides a cascaded power line carrier communication method to solve the problems of low communication bandwidth speed and low utilization rate in the prior art.

[0051] Specifically, the cascaded power line carrier communication method is applied to a cascaded power line carrier communication device, and the cascaded power line carrier communication device includes: a communication host and multiple communication slaves; the cascaded power line carrier communication methods such as figure 1 shown, including:

[0052] S101. The communication host uses a broadcast mechanism to send the corresponding relationship between the priority of each communication slave and the ID number and the control command to each comm...

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Abstract

The invention provides a cascaded power line carrier wave method and device. The method comprises sending the priority of each communication slave and the correspondence between each communication slave and ID number and control order to each communication slave through the broadcast mechanism which communication host adopts; each communication slave uploads data to communication host in turn according to control order, correspondence and priority. The method avoids the point to point communication which needs to be done to each communication slave during the polling of communication host, the communication host just needs to broadcast for one time to all communication slaves and each communicate slave can upload data in turn according to priority. The method reduces the time for inquiry in turn effectively and improves the communication bandwidth. At the same time, the method inherits the advantage that the data frame of master-slave mechanism is simple. The proportion of effective data of each frame is high and the utilization of communication bandwidth can be improved greatly.

Description

technical field [0001] The invention relates to the technical field of cascaded power line carrier communication, in particular to a cascaded power line carrier communication method and device. Background technique [0002] Cascaded PLC (Power Line Carrier, power line carrier) communication is different from traditional PLC. Traditional PLC adopts parallel voltage coupling method, that is, its PLC modules are directly connected in parallel at both ends of L line and N line; while cascaded PLC modules are It is connected in series in a loop and adopts the communication mode of the current loop. When it is necessary to realize real-time control through communication, the communication host needs to uniformly dispatch and control the multiple communication slaves under it. Therefore, the communication host and each The real-time and reliability requirements of communication between communication slaves are very high. [0003] At present, the communication mechanisms of cascade...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54
CPCH04B3/542H04B3/544
Inventor 许林冲徐君毛旺
Owner SUNGROW POWER SUPPLY CO LTD
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