FöRFATTARE
Pettersson, Anders

DATUM
2001-02-18

INSTITUTION
Systemteknik / Industriell elektronik

SAMMANFATTNING
D-Flow AB in Luleå has developed an ultrasonic flow meter demo board that the company wished could be accessed via the Internet.

The work behind this thesis was to construct a system that could handle this task, using the serial interface of the flow meter. This thesis deals with aspects on development of hardware as well as software.

Out of the company's requirements, hardware including a MCU and an Ethernet driver was designed and built. The main goal was to construct a system that was as small as possible and has little power demand, by careful selection of components.

The software issues was using a real-time operating system and TCP/IP software in order to create a network server, that could make it possible not only to gather measurement data, but also to configure the instrument via remote access.

The resulting system showed to function a bit slow, but was still functioning according to the specifications. When testing with a web server, the system could transfer 5,5kbps. The power consumption was below the estimated calculation and the resulting board could use some refining. The software, however, needs a lot more development.

ISSN 1402-1617 / ISRN LTU-EX--01/123--SE / NR 2001:123