Personal asset tracking system
I chose the design of a personal, family-scaled asset tracking system as the topic of my thesis. The problem has been relevant for long, however especially our busy lifestyle requires external help. When we are in a hurry, it is quite common that we cannot find the essential accessories (keys, glasses, etc.) and we waste time with hopeless searching. The personal asset tracking system can solve this problem. This system can help to find the items that we previously marked with tags. By means of a central device we can get information quickly about the location of these objects, light and sound effects can speed up the searching. The design of such a device requires the investigation of some similar, existing solutions: industrial tracking (trucks - wi-fi-based systems), logistics, goods tracking, food safety (RFID), security (video, GPS-GSM based car tracing), or even the observation of animals (RFID, satellite tracking). The master device communicates with the tags attached to our objects in a wireless channel. Nowadays, the wireless communication is widespread, we can choose from various technologies: WI-FI, bluetooth, infrared etc. Furthermore it is important to choose the proper architecture for the system. I study these issues from several aspects to decide, which solution is best suited to meet our expectations. Afterwards we follow the steps of the development of a prototype system which meets the requirements. We find the ideal technical solutions, and after the testing of the finished device, we bring the first prototype to perfection, and fit it up with new modules. Finally we examine the technological requirements of a potential release version which is a size and consumption-optimized, user-friendly device. During the design process, it is important to keep in mind the possibility of upgrading, like the compatibility with technologies that will be probably prevalent in the future (central units that are controlled from an Android based smartphone; Bluetooth 4.0 low-power radio units).