C. System Composition Modules
Control module: in Linux system, through the QT
programming design the graphical user interface, draw the
virtual keyboard to realize the man-machine dialog, SMS
sending and receiving such basic operation, complete the
graphical user interface.
Audio function module: audio data collection (recording)
and play.
Network transmission module: through Ethernet, realize
real-time transmission and the text information transmission
between PC client and ARM platform for audio stream.
GPRS control module: in the ARM development platform
of the server programming to control through serial GPRS
module, call system function, complete GPRS module
initialization and phone, use of text messages and other related
function realization.