Mesh Networks In Embedded Computer Systems For Technology Education

Embedded computer systems have advanced significantly in recent years. In the past these were usually low-cost devices with limited processing power. Computational capability was provided principally by independently operating 8-bit microcontrollers. These systems were programmed in assembly language or C code with no or minimal operating system. Now operating systems and communication with external systems are commonplace. With this evolution networking technologies, both conventional and experimental, have also become commonplace in embedded computer systems. Although standard networking technologies, such as Ethernet and TCP/IP are used other networking technologies are more appropriate for the constraints of embedded system applications. Amongst embedded systems with networks the field of low-power self-configuring mesh networks is becoming much more prevalent. They have applications to medical systems, games, family environments, natural habitats, traffic control, military battlefields and elsewhere. This sub-discipline needs to be included in embedded computer system education. Including both theoretical and applied aspects in a technology course is challenging but possible. This article summarizes the essential concepts and application domains of mesh networking and the challenges and opportunities of teaching this topic. It also describes practical methods of including both theoretical and applied elements in an embedded systems course for upperdivision technology students.