Virtual network adapter
First Claim
Patent Images
1. Apparatus comprising:
- a vehicle;
a plurality of vehicle domain electronic control units within said vehicle coupled via a protected vehicle domain network;
a client processing system having one or more electronic control units coupled via an unprotected vehicle domain network;
a virtual network adapter having a first interface to the protected vehicle domain network, and a second interface to the unprotected vehicle domain network, the first interface permitting the virtual network adapter to passively receive messages from the protected vehicle domain network using a non-influencing electronic sense device, the second interface permitting the virtual network adapter to receive and send messages to the unprotected vehicle network domain; and
, a virtual network adapter processor for continuously receiving messages from the protected vehicle domain network via the first interface, the virtual network adapter processor forming a data repository using the continuously received messages, the virtual network adapter processor providing the client processing system access to the data repository via the second interface whereby the client processing system can access information provided by the vehicle domain electronic control units.
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Abstract
A method and an electronic circuit arrangement is provided which allows observation of bus-systems and networks. In particular the method and circuit arrangement does not cause electrical or physical constraints and influence to the bus-systems and networks. Still more specifically it provides for accessing static bus-systems and networks in particular used by real-time constrained systems and applications such as in automotive vehicles.
88 Citations
10 Claims
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1. Apparatus comprising:
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a vehicle;
a plurality of vehicle domain electronic control units within said vehicle coupled via a protected vehicle domain network;
a client processing system having one or more electronic control units coupled via an unprotected vehicle domain network;
a virtual network adapter having a first interface to the protected vehicle domain network, and a second interface to the unprotected vehicle domain network, the first interface permitting the virtual network adapter to passively receive messages from the protected vehicle domain network using a non-influencing electronic sense device, the second interface permitting the virtual network adapter to receive and send messages to the unprotected vehicle network domain; and
,a virtual network adapter processor for continuously receiving messages from the protected vehicle domain network via the first interface, the virtual network adapter processor forming a data repository using the continuously received messages, the virtual network adapter processor providing the client processing system access to the data repository via the second interface whereby the client processing system can access information provided by the vehicle domain electronic control units. - View Dependent Claims (2, 3, 4)
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5. A method comprising the steps of:
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monitoring a plurality of automotive electronic control units coupled together by a protected domain vehicle network in an automotive vehicle by receiving messages from the protected domain vehicle network using a non-influencing electronic sense technique;
storing in a data repository messages representative of the monitored automotive electronic control units; and
providing a client processing system with access to the data repository via an unprotected domain network. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification