BusScope - A test platform for bus signals which concentrates on what is important

BusScope is a highly efficient test and analysis device for FlexRay, CAN and LIN bus-systems. As the structure of control systems in modern cars is so complex that they can only be handled by large databases, and the most modern computers have to be used to design them, BusScope realizes an all in one analysis device, with which such systems can be easily tested and simulated.

Advantages by the introduction of BusScope

• Test and analysis all in one device for FlexRay, CAN and LIN bus-systems.
• The four main functions scope trigger, bus analyser, bus simulator and fault injector are combined in only one device.
• BusScope does not use a dedicated communication controller and is therefore non volatile against component changes.
• BusScope enables highly accurate timing-analyses (bus-schedule, delays in gateways)
• Bus-simulation can be performed down to the bit-level, jitter-simulations up to 10 nsec.

In order to record the effects of the system for modifications or enhancements during test runs as soon as possible, the developers and engineers require efficient testing and simulation devices. This is precisely what BusScope is - a new type of testing and analysis device for networks within automobiles.

BusScope utilizes a new architecture and new concepts for measurement. For test and analysis tasks, the only matter of interest is what happens on the bus line. Only the pure bus signal is generated for the simulation. Consisting of a signal scanner for the analysis and a signal generator for the simulation, the scope trigger, bus analyser, bus simulator and the fault injector, error functions can be integrated on a test platform. It is possible to process several bus protocols at the same time. The extent of the analyses and simulations is dependent on the level of signal processing and signal evaluation. The sole reference is the specification of the particular bus protocol. The accuracy of the analyses is defined by the resolution of the scanner and generator. The modular construction of the device with standard components guarantees high flexibility, allowing the adaptation of new bus protocols and adjustments for the particular analysis task. Also, as the communication controller used is not the commercial standard, there are no restrictions.

Typical applications

Network - Defining the bus-schedules and immidiate simulation of the bus Concept stage - Finding the optimal bus-schedules - Partitioning of nodes and choosing the topology Scope trigger and bus simulator

Network design, - Tests vs. specification test and validation tasks - Fault injection and simulation - Gateway delay survey Scope trigger, bus analyser, bus simulator and fault injector

Network extension - Network extension by additional nodes - Validating changes Bus analyser and bus simulator

Network services - Fault survey in the network - Option: fault expert system Scope trigger and bus analyser