WIRELESS NETWORK SYSTEM

• US 20130272200A1
• Filed: 04/15/2013
• Published: 10/17/2013
• Est. Priority Date: 04/16/2012
• Status: Active Grant

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: TAKAHASHI, Hiromi
• Granted Patent: US 9,220,127 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 84/00 Network topologies

Abstract

A wireless network system includes a plurality of devices operating on the basis of incompatible and different standards. At least one of the devices comprises a standard identifying module configured to identify standards on the basis of parameters inherent and different in the respective standards.

Claims

1. A wireless network system comprising:

a plurality of devices operating on the basis of incompatible and different standards, wherein

at least one of the devices comprises a standard identifying module configured to identify standards on the basis of parameters inherent and different in the respective standards.

2. The wireless network system according to claim 1, wherein the standard identifying module is configured to identify the standard on the basis of a calculation result of a manipulation detection code.

3. The wireless network system according to claim 1, wherein the incompatible and different standards correspond to the old version and the new version of the industrial automation wireless communication standard ISA100.11a.

4. The wireless network system according to claim 2, wherein the incompatible and different standards correspond to the old version and the new version of the industrial automation wireless communication standard ISA100.11a.

5. The wireless network system according to claim 1, wherein the standard identifying module includes a standard identifier detector configured to detect an identifier representing the standard on the basis of which a received data is generated, and a standard judgment module configured to judge the standard on the basis of the identifier detected by the standard identifier detector.

6. The wireless network system according to claim 1, further comprising:

a manipulation detection code calculator configured to calculate a manipulation detection code on the basis of an algorithm of the identified standard.