Controller area network performance parameters measurement
US7929461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2006 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Nov 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of measuring bus traffic on a controller area network (CAN) is described. Accordingly, in one embodiment, a digital oscilloscope acquires the CAN bus signal in the form of a waveform in real-time. The waveform is converted into a bit stream, and the bitstream is analyzed to carry out various measurements in a CAN measurement system. The method may be used for continuous monitoring of bus traffic and measuring of various parameters related thereto, such as bus occupancy by a particular node. The acquired data may be analyzed for measuring bus occupancy by various types of CAN message frames. The user is presented with a data display and a graphical display of the measurements. Also, the user is allowed to enter an identifier for a node to obtain measurements relating to that particular node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.