Standard-compliant test  system for eCall  in-vehicle system modules

Standard-compliant test system for eCall in-vehicle system modules

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By eeNews Europe

To this end, Rohde & Schwarz will demonstrate its compact eCall test solution for in-vehicle emergency call systems for the first time at Mobile World Congress. The setup consists of the CMW500 wideband radio communication tester and the SMBV100A vector signal generator with integrated global navigation satellite system (GNSS) simulator. This setup allows manufacturers and suppliers of automatic in-vehicle system (IVS) to perform reliable and reproducible end-to-end conformance tests on their eCall modules.

When an accident occurs, the IVS connects with a public safety answering point (PSAP) via the local wireless communications network and transmits a minimum set of data (MSD) that includes the GPS coordinates of the vehicle involved. The company’s test solution enables users to verify whether their IVS modem can successfully initiate an emergency call, transmit the correct MSD and establish a voice connection with a PSAP.

Rohde & Schwarz developed the CMW-KA094 eCall application software specifically for this application. The software simulates a PSAP and controls the CMW500 emulating a wireless communications network in the lab. It also controls the GNSS simulator supplying the coordinates required for localization. The test system is fully automated thanks to the company’s CMWrun sequencer software and can be used right away. The user can test the RF interfaces and GNSS receiver and also check that the entire system is functioning properly.

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