At present I am working for an automotive electronics company.Useed MCU: ST stm32f476, stm32f072, stm32f303; Sypress M0 S6E1C3 and NXP ARM7 lpc2131 , lpc2136.
I and my friend ,who work in hospital discussing a project on analysis of intestinal physiology according to the gurgling sound.
2.1 block diagram
2.2 Detailed Description
To overcome the disadvantages in the bowel sounds detection such as strong subjectiVity, low exactitude and unscientific detections, we designed a multi-channel bowel sounds acquisition system based on MCU to detect the signals accurately．The system include hardware and software. the hardware system comprise nmlti-channel “crophones，anlplifier cirCuit，filter circuit，Voltage ascend circuit，MCU circuit，electricity supply circuit and so on， the software system is composed of the capture programs and calculate programs．The system works as follows，microphones detect the bowel sounds firstly and transfrom them into electrical signals，and then the signals will beplified, filtered and advance the voltage level to satisfy the level requested by A/D converter．After the signals come into the MCU circuit，the A/D converter embedded in the MCU transform the analog signals into digital ones，then the digial signals will be dispaly to TFT and memorized for funher analysis at the same time, end print a report .