System and method for on-line diagnostics

Details System and method for on-line diagnostics System and method for on-line diagnostics

2008-05-13

2008-05-13

Smithers, Matthew (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

C380S259000

Reexamination Certificate

active

10443015

ABSTRACT:
An on-line diagnostics system and method enable equipment information stored in each piece of industrial equipment to be safely disclosed to maintenance personnel to the extent permitted by the user of the industrial equipment. The on-line diagnostics system comprises industrial equipment and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet. Equipment information indicating the state of the industrial equipment is encrypted using a specific common key, and the encrypted equipment information is transmitted to the maintenance apparatus in response to a request therefrom. The fact that the common key has been transmitted from the industrial equipment to the maintenance apparatus is outputted. After receiving the encrypted equipment information and the common key that have been transmitted, the encrypted equipment information is decrypted using the common key, and the decrypted equipment information is outputted.

REFERENCES:
patent: 2003/0070067 (2003-04-01), Saito
patent: 57137933 (1982-08-01), None
Neng-Chung Wang, Shian-Zhang Fang, Yung-Fa Huang, “Mobile Computing Symposium: Security and Applications in Mobile Computing: Hierarchy-based management for secure group communications in mobile ad hoc networks”, Aug. 2007, □□pp. 571-576□□.

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