• Optics and Precision Engineering
  • Vol. 20, Issue 10, 2192 (2012)
LIU Gang*, YAN Guo-zheng, LIU Hua, and ZHU Bing-quan
Author Affiliations
  • [in Chinese]
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    DOI: 10.3788/ope.20122010.2192 Cite this Article
    LIU Gang, YAN Guo-zheng, LIU Hua, ZHU Bing-quan. Design and experiment of intermittent working image capsule endoscopy[J]. Optics and Precision Engineering, 2012, 20(10): 2192 Copy Citation Text show less

    Abstract

    As the image capsule endoscopy is limited by the energy and it has short working time, this paper designs a miniature intermittent working image capsule endoscopy with low power consuming according to the speed of image capsule's peristalsis in human intestine. The Hall switch was designed as the main power supply switch instead of reed switch to further reduce the volume of the image capsule. A battery power supplies module, an analog switch circuit, and a software were developed to realize the intermittent power supplies of wireless transmitting and Light Emitting Diode(LED) circuits and the sleep mode of an image sensor. The clear images were obtained successfully, and the tests and animal experiments were performed to prove the work time and feasibility of the whole system. Obtained results show that the total size of the system is only Φ12 mm×25 mm, and the work time is more than 9 h in one second intermittent working mode when the modules are connected.
    LIU Gang, YAN Guo-zheng, LIU Hua, ZHU Bing-quan. Design and experiment of intermittent working image capsule endoscopy[J]. Optics and Precision Engineering, 2012, 20(10): 2192
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