초록 ▼

A meter terminal unit for use in automatic meter reading systems of the type including a control center for transmitting commands to and receiving measurement data from the terminal unit via a distribution unit serving several terminal units. The terminal unit is selectively responsive to commands g

A meter terminal unit for use in automatic meter reading systems of the type including a control center for transmitting commands to and receiving measurement data from the terminal unit via a distribution unit serving several terminal units. The terminal unit is selectively responsive to commands generated by the control center to carry out load control operations, encoder meter reading and store operations, or transfer previously stored meter data from the terminal unit to the control center in accordance with functions specified by the various commands.

대표청구항 ▼

In a meter terminal unit of the type for use in an automatic meter reading system, the combination comprising: (a) a source of alternating current, (b) a meter including a readable encoder electrically energizable by said alternating current for directly generating a serial stream of data signals ha

In a meter terminal unit of the type for use in an automatic meter reading system, the combination comprising: (a) a source of alternating current, (b) a meter including a readable encoder electrically energizable by said alternating current for directly generating a serial stream of data signals having binary states representative of a meter measurement wherein the data signals are generated asynchronously of the alternating current; (c) clock signal generating means including synchronization means electrically responsive to said alternating current and said data signals from said encoder to provide a repetitively occurring clock signal which is synchronized with said data signals; and, (d) means for combining said clock signal and said data signals whereby said data signals are provided as identifiable measurement data synchronized by said clock signal.