Search International and National Patent Collections

1. (WO2017157545) SYSTEM FOR BUILDINGS AUTOMATION WITH TWO SUBNETWORK AREAS

Pub. No.:    WO/2017/157545    International Application No.:    PCT/EP2017/051164
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Sat Jan 21 00:59:59 CET 2017
IPC: H04L 12/28
H04L 29/06
Applicants: ABB SCHWEIZ AG
Inventors: WINNEWISSER, Christian
Title: SYSTEM FOR BUILDINGS AUTOMATION WITH TWO SUBNETWORK AREAS
Abstract:
System (1) for buildings automation that has a subscriber network having subscriber stations (2 – 20) that collectively access a physical transmission medium (21, 21') of the subscriber network in order to interact via said subscriber network and in so doing to interchange data in the form of telegrams, characterised in that at least two subnetwork areas (22, 23) are formed in the subscriber network, wherein a first subnetwork area (22) is in an unprotected building area (24) and a second subnetwork area (23) is in a protected building area (25), and in that the transmission medium (21') of the first subnetwork area (22) is connected to the transmission medium (21) of the second subnetwork area (23) via a bypass apparatus (26), wherein the bypass apparatus (26) is in a protected building area (25) and has a first bypass interface (27) that is connected to the transmission medium (21') in the first subnetwork area (22) and has a second bypass interface (28) that is connected to the transmission medium (21) in the second subnetwork area (23), and in that the bypass apparatus (26) has a means (29) in order to capture information about at least one physical feature of the transmission medium (21') or of at least one subscriber device (12 – 20) in the first subnetwork area (22) and to identify therefrom and indicate an attack on the transmission medium (21') of the first subnetwork area (22).