Study And Realization Of Capsule Endoscope Portable Device Based On ARM

Wireless endoscopes are capable of eliminating the limitations of conventional GI endoscopes. Subminiature camera capsule could be swallowed into the intestine to take photographs of specific and non-specific locations of the gullet, stomach, large and small intestines. This is a great advantage over traditional endoscopes, which can only examine the upper and lower GI tracts. This examining method is noninvasive and painless, which is in line with recent trends towards noninvasive and minimally invasive therapy. This method aims to reduce power and improve efficiency by adjusting frame format,compressing ratio,etc.with progress of some typical capsule-style micro- systems,such as wireless endoscope,site specific delivery capsule(SSDC),alimentary tract sampling capsule,PH capsule.People can take better therapy with these lenitive technique.however, It is very difficult in solving the practicability of wireless endoscope. because of its power and image quality. Due to this factors,the bi-directional and multi-channel miniatruized telemetry module for wireless endoscopy was developed to improve the practicability.the whole system has three parts, endoscope, controlling and managing unit and image worksation.digital image sensor and single-chip radio transceiver in endoscope are controlled by Microprocessor Control Unit(MCU). compressing arithmetic can be complete in digital image sensor unit. Data was communicated between endoscope and ARM module with two transceivers. ARM,the core of controlling and managing unit,which has many interfaces so that all of the peripheral equipment can be extended on this board ,such as Liquid Crystal Display(LCD), Secure Digital Card (SD),radio transceiver and power module.The image which was shooted in stomach and intestine are analysed and storaged on image workstation. Image data was transmitted by Universal Serial Bus(USB) between two latter parts.In the whole system, frame format of decoder,compressing ratio, transmitting speed and sleeping model are controlled by changing some parameters according to our need in different situations.The study has demonstrated a unique and better approach to minish the dimension of endoscope. It also represents a significant advancement in intestine therapy. A successful attempt has been made to acquire better data with the aid of this system. The Embedded system has several important applications in medicine, and perhaps the most significant one is the sleeping model,which can be controlled as your wish,the energy was saved and capsule-style...