Common Vehicle Protocol Analysis

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Common Vehicle Protocol Analysis

Protocol Analysis for Vehicle and Automation Industries  

Differential signal analysis is very common and important in the vehical, robot design and automation industries. In particular, the demand for protocols for electric vehicles is increasing. Advanced Driver Assistance Systems (ADAS) and Automatic Driving Systems (ADS) needs the measurement of the protocol is necessary for large-scale systems and large sensors (including LiDAR/Radar), such as RS485 (EIA485), SENT, CAN, LIN, Flexray, Ethernet AVB (MII) etc.


Solutions for the Differential Signal Analysis

TravelBus 2000 series 2-in-1 analyzer (protocol + logic) of Acute Technology Inc. can directly measure the differential signal like CAN physical layer, RS485 (EIA485) etc., and the use of bus analysis module can quickly do a long time measuring.


 Measuring EIA485(RS485) & CAN2.0 & CAN FD with TravelBus

1. RS-485(EIA485) is used as the physical layer underlying many standard and proprietary automation protocols used to implement industrial control systems, including the most common versions of Modbus and Profibus

2. Controller Area Network (CAN bus) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted sequentially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.

The applications of CAN Bus: 

  • Passenger vehicles, trucks, buses (gasoline vehicles and electric vehicles)
  • Agricultural equipment
  • Electronic equipment for aviation and navigation
  • Industrial automation and mechanical control
  • Elevators, escalators
  • Building automation
  • Medical instruments and equipment
  • Pedelecs
  • Model Railways/Railroads
  • Ships and other maritime applications
  • Lighting Control Systems
RS485/RS422/RS232 CAN2.0 / CAN FD


Oscilloscope and Differential Probe

In the automotive analog signal measurement, it can be matched with the 16-bit resolution Acute TravelScope TS2212H oscilloscope which includes various of protocol decode & trigger(CAN,RS485,I2C,SENT etc.) and the high-voltage differential probe ADP series products.

TravelScope(DSO) ADP(Differential Probe)
oscilloscope dso travelscope ADP100


*All Acute logic analyzers can be stacked with different brands of oscilloscopes, such as Tektronic, Keysight, LeCroy, Rohde & Schwarz etc. (Detail)


High-Speed Protocol for Vehicle & Automation Industries

In addition, for faster vehicle sensor and communication protocols, for example Ethernet AVB(SGMII、GMII、RGMII、MII、RMII), Memory & Storage(Nor Flash, NAND Flash), Display&Camera(MIPI DSI, MIPI CSI). Please refer to the following products.

MSO2000 series: RGMII, MII, RMII, NAND Flash, NOR Flash ...more
TL4000 series: RGMII, MII, RMII, NAND Flash, NOR Flash ...more
LA3000+ series : GMII (Include above protocols) ...more
Busfinder : MIPI DPHY, SGMII(Include above protocols) ...more