ABSTRACT
With the development of the network and wireless communication technology,
people had started to constantly apply them to practical production and life, the Wireless
Sensor Network is one of the good application examples. It mainly consists of the front
desk system and background system. The front desk system is just like a embedded
system, which contains a lot of sensors, control and wireless communication module,
they are distributed in certain areas to acquire signal ,store data and forward
information ,also they can communicate with each other. The main task of the
background system is the analysis and judgement of the information received from the
front desk system, to achieve the purpose of real-time monitoring the area parameters,
the Wireless Sensor Network generally used in monitoring the temperature, humidity,
noise and various chemical composition concentration parameters of biological habitats
and industrial production process.
This paper is mainly research the realization of the front embedded system in the
Wireless Sensor Network and simply introduced the relevant contents of the wireless
communication module, also specially discussed the implementation of signal
acquisition and information process. It mainly included hardware and software
components. Hardware has all kinds of sensors, such as the sound listener, USB
cameras and TQ2440 development board, software is the key point which includes
boot loader, Linux kernel, the file system and the whole cross development environment
based on Qtopia, the most important is the development of application with Qtopia and
Linux drivers, also introduced some contents of the USB protocol.
Keyword: Wireless sensor network; USB protocol; Qtopia; Cross Development; Linux
Device Driver; Linux Application Program
