Wireless capsule endoscopy system design
ABSTRACT
The design fundamental and the wireless image transmission subsystem of the capsule endoscopy (CE) are proposed. Then a scheme based on RF chips, NRF24LE1 , is given. To validate the feasibility of this scheme, this paper calculated the attenuation of the signal transmitted from CE. The result shows that the signal is still strong enough for the receiver to receive after it is absorbed by the human body tissues when the signal propogate in human body.
A capsule endoscope system, based on the RF chip and image acquisition NRF24LE1 of OV7660 chip design. According to electromagnetic wave propagation theory, the calculation of the capsule in the human body's electromagnetic signal fired after penetrating the body to reach the receiver at the time of field strength values, results showed that the signal strength in vitro can be achieved to receive the request, in order to verify the feasibility of the program. Is introduced in this paper is the design of a wireless capsule endoscope diagnosis system and structure of the principle. The system is mainly based on the OV7660 image sensor chips used, Nordic's RF chip NRF24LE1 combination of structure, the successful implementation of the capsule endoscope to the body of the image data transmission to receive real-time memory function. Focus on the human body wireless capsule endoscopy system design in the structural design, given the body control the design of wireless magnetic devices.
System to minimize the external circuit, thus the body to strictly control the size of the wireless capsule and the power to reduce the capsule size as a result of too much discomfort to the human body and to meet the capsules remain in the body in order to have sufficient time to complete lesion of the transmission of real-time image acquisition.