Patent Number: 6,512,463

Title: Bi-directional protocol

Abstract: A protocol for utility meter interrogation has a data write portion including: assembling a password transmission sequence having a synchronization string and a message including identification indicia for a select utility meter and a password to activate a select data access level within the select utility meter. This is wirelessly transmitted a first time to a select utility meter. Then, the password transmission sequence is wirelessly transmitted a second time to the select utility meter to confirm the password transmission sequence. A command transmission sequence having the synchronization string and a message including the identification indicia and a write command is assembled to cause the select utility meter to store data in a memory location of the select utility meter corresponding to the data access level activated with the password. The command sequence is then wirelessly transmitted to the select utility meter two times to confirm the command transmission sequence.

Inventors: Campbell; David E. (Mountain View, CA), Kiser; Eric T. (Lesage, WV)

Assignee: American Meter Co.

International Classification: H04Q 9/04 (20060101); G08B 023/00 (); G08C 015/06 ()

Expiration Date: 01/28/2020