公开(公告)号：US3922492A

公开(公告)日：1975-11-25

申请号：US45228774

申请日：1974-03-18

Applicant: LUMSDEN JAMES RAY

Inventor： LUMSDEN JAMES RAY

IPC: H04M11/00

CPC classification number: H04M11/002

Abstract: A system for remotely reading, storing and transmitting the current reading of a plurality of utility meters to a central computer. Each remote location using a utility is fitted with a transponder which is connected to the various utility meters. The transponders are capable of receiving pulses from sending units in the utility meters and storing these pulses. The computer can connect itself with a particular transponder by sending an interrogation code decodable only by that transponder. If the correct interrogation code is received twice within a predetermined time period the transponder is activated and transmits its stored information to the computer.

Abstract translation: 一种用于远程读取，存储并将多个公用电表的当前读数发送到中央计算机的系统。 使用实用程序的每个远程位置都配有连接到各种公用事业电表的应答器。 应答器能够从公用事业计量表中的发送单元接收脉冲并存储这些脉冲。 计算机可以通过发送只能由该应答器解码的询问代码与特定的应答器连接。 如果在预定时间段内接收到两次正确的询问码，则应答器被激活并将其存储的信息发送到计算机。