Our ancestors used to go to under sky at night and calculate their locations on the earth. They built landmarks, detailed maps and learned how to read the stars in the night sky.

OpenAVL is an AVL (Automatic Vehicle Location)open source project.The OpenAVL is one of my on-going open source projects. This project is written in ANSI C. The prototype board is made up of a low cost GSM M2M module (MC39i) from Siemens/Cinterion, a GPS OEM module from Leadtek and an AVR microcontroller (ATmega128L) from Atmel. It will be ported to Emcelettronica's IperSMS board, which has a PIC18 and a Telit M2M module. I will share my development experiences in these blogs.

GPS tracking systems are well known GPS based applications in daily life. Some applications can run independently, such as navigation, geo-tagging and passive track logger. The other applications have to connect to the complementary web servers as the backend sources of map tiles, local search services, landmarks sharing and routes planning.