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1. 发明专利

JPS5726942A Data transmission system 失效
标题翻译：数据传输系统
公开(公告)号：JPS5726942A
公开(公告)日：1982-02-13
申请号：JP10222580
申请日：1980-07-25
申请人： Tokyo Gas Co Ltd
发明人： MATSUURA MASAYUKI , SAITOU KIMIMASA , YAMAMOTO YOSHIHIRO , HOSOHARA YASUHARU
IPC分类号： H04B13/00 , H04B13/02
CPC分类号： H04B13/02
摘要： PURPOSE:To reduce the total cost including installation cost and maintenance cost, by forming a transmission line with a burried metallic conductor pipe and ground, and transmitting data carrier signal waves on the transmission line. CONSTITUTION:A data carrier signal wave is applied between a burried metallic pipe 1 and a grounded electrode E at one of two points P, P'. This carrier signal wave propagates, by taking the pipe 1 between the P, P' and ground G as a pair of transmission lines, that is, with attenuation in logarithmic proportion to a distance through the scattering in ground. The carrier signal wave attenuated through propagation can be received between the pipe 1 and the grounded electrode E' at the point P' of the P, P'.
摘要翻译：目的：通过形成具有埋地金属导体管和地面的传输线，并在传输线上传输数据载波信号波，以降低安装成本和维护成本的总成本。构成：在两个点P，P'中的一个处，在埋入金属管1和接地电极E之间施加数据载波信号波。该载波信号波通过将P，P'和地G之间的管1作为一对传输线传播，即以与地面中散射的距离成对数比例的衰减。通过传播衰减的载波信号波可以被接收在管道1和P，P'的P'点的接地电极E'之间。

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