Method for Selecting Relay Station in Power Line Network, and Station

    公开(公告)号:US20180054381A1

    公开(公告)日:2018-02-22

    申请号:US15679957

    申请日:2017-08-17

    发明人: Pan Guo

    IPC分类号: H04L12/721 H04B3/58

    摘要: A method for selecting a relay station in a power line network, and a station are provided in order to reduce a quantity of maintenance packets and reduce occupied bandwidth resources. The method includes receiving, by a first station, a maintenance packet from each second station, where each second station sends the maintenance packet using a preset transmit power, and a difference between a maximum transmit power supported by each second station and the preset transmit power is not less than a power required to compensate for asymmetry between the first station and each second station, determining, by the first station, a success rate of the maintenance packet from each second station, and selecting, by the first station from multiple second stations, a station as a relay station of the first station according to the success rate.

    Remote meter reading system and method using multiple master devices

    公开(公告)号:US09641914B2

    公开(公告)日:2017-05-02

    申请号:US14684059

    申请日:2015-04-10

    申请人: LSIS CO., LTD.

    发明人: Seong Joon Lee

    IPC分类号: H04Q9/00 H04B3/54

    摘要: This specification relates to a remote meter reading system using a plurality of master devices and a remote meter reading method thereof, and more particularly, a remote meter reading system using a plurality of master devices, capable of allowing for communication with another electricity meter modem which can replace one electricity meter modem when there is a trouble in communication between the one electricity meter modem and the master devices, allowing for fast and flexible reaction with respect to changes in communication network between the electricity meter modem and the master devices, and constructing a network path for communication with an optimal communication performance, all by way of enabling network connection and information sharing among master devices through communication between electricity meter modems and the plurality of master devices, and a remote meter reading method thereof.