Internet based remote diagnostic system
US6411678B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1999 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Oct 1, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Public or private remote access infrastructures in a communication system are used to facilitate communications between a remote site and a centrally located diagnostic center using only local telephone calls. The diagnostic center as well as one or more remote sites at which monitored equipment is located are coupled to a wide area network (WAN). When data are to be transferred from a remote site to the central diagnostic center, the remote site initiates a local telephone call to a point-of-presence (POP) server on the WAN backbone. This could be an Internet Service Provider (ISP) if the Internet is used, or an intranet if a private network is used. Data are then transferred to the POP server. To complete the transfer, the diagnostic center retrieves the data from the POP server using the public or private wide-area network (the Internet or intranet). The data transfer can be performed either on a scheduled basis, or when an alarm condition is detected at the remote site. The central diagnostic center can use a wireless paging service to prompt the remote site to couple to the POP server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.