820 Institute, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
Int J Med Robot. 2012 Sep;8(3):337-47. doi: 10.1002/rcs.1428. Epub 2012 Apr 17.
A wireless power transmission system is regarded as a practical way of solving power-shortage problems in multifunctional active capsule endoscopes.
The uniformity of magnetic flux density, frequency stability and orientation stability are used to evaluate power transmission stability, taking into consideration size and safety constraints. Magnetic field safety and temperature rise are also considered. Test benches are designed to measure the relevent parameters. Finally, a mathematical programming model in which these constraints are considered is proposed to improve transmission efficiency. To verify the feasibility of the proposed method, various systems for a wireless active capsule endoscope are designed and evaluated.
The optimal power transmission system has the capability to supply continuously at least 500 mW of power with a transmission efficiency of 4.08%.
The example validates the feasibility of the proposed method. Introduction of novel designs enables further improvement of this method.
无线电力传输系统被认为是解决多功能主动胶囊内窥镜电源短缺问题的一种实用方法。
考虑到尺寸和安全限制，使用磁通密度均匀性、频率稳定性和方向稳定性来评估电力传输稳定性。还考虑了磁场安全性和温升。设计了测试台来测量相关参数。最后，提出了一个考虑这些约束的数学规划模型，以提高传输效率。为了验证所提出方法的可行性，设计并评估了各种用于无线主动胶囊内窥镜的系统。
优化后的电力传输系统能够以 4.08%的传输效率连续提供至少 500 mW 的功率。
实例验证了所提出方法的可行性。引入新设计可以进一步改进该方法。
