The Research Of The Automatic Test System For Bluetooth Car Kits

Bluetooth technology is wireless technology for devices inter-connection in short-range. Its original target is"Cable replacement or Cordless", that is use wireless technology to replace all of the cables between the PC and its peripherals, cellular phone had its accessories. Bluetooth work in ISM band, with low power and small in dimension, now it is the wireless connect standard for portable devices and other equipment that do not need high data throughout in short range.In this paper, Firstly introduced bluetooth basic operation theory include: baseband, radio, protocol stack etc. At the same time, introduced bluetooth test principles as well since the author's working circumstance. Then focus on the E1852B based automatic test system for bluetooth product, include test equipment selection, hardware integration, test software architectures etc. Attached VB source code for some key test functions and PIC16F876 ASM source code for UIM(user interface module) testing at the end.The author is a Motorola test engineer in TianJin manufacture site. From the end of year 2003, Bluetooth Car kits project kick off in the group that the author belongs to, accordingly the factory need to setup test system for the production. From then on ,the author begin to study bluetooth technology and test system development. Through nearly 2 years hard work, complete develop E1852B based automatic test system for bluetooth products. Now this system become the standard test system for bluetooth accessory(headset,car kits). After period of running,it shows that this system is stable and fulfilled the production requirement.