| 基于虚拟仪器平台的新型超声辐射热疗仪软件设计 |
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| 引用本文： | 姜峰,白景峰,陈亚珠. 基于虚拟仪器平台的新型超声辐射热疗仪软件设计[J]. 北京生物医学工程, 2004, 23(2): 88-90 |
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| 作者姓名： | 姜峰 白景峰 陈亚珠 |
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| 作者单位： | 上海交通大学生物医学仪器研究所,200030;上海交通大学生物医学仪器研究所,200030;上海交通大学生物医学仪器研究所,200030 |
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| 摘 要： | 介绍了基于虚拟仪器工程平台的超声热疗治癌仪的工作原理及人机界面设计.阐述了组织温度控制算法、治疗头水温控制以及脉宽调制信号产生三个系统核心子模块的设计.根据系统特殊要求,在癌变组织温度控制子程序中,改进了比例积分微分(PID)算法,实现了对靶区组织温度的严格控制.通过对内嵌于数据采集卡的8254芯片编程产生了HD控制的脉宽调制信号,同时设计了水温控制算法.实验验证,软件设计可靠,满足了超声热疗仪的要求.
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| 关 键 词： | 超声 热疗 PID算法 虚拟仪器 |
| 文章编号： | 1002-3208(2004)02-0088-03 |
| 修稿时间： | 2003-06-30 |
Software Design of a New Ultrasound Hyperthermia System Based on Virtual Instrument Platform |
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| JIANG Feng,BAI Jingfeng,CHEN Yazhu. Biomedical Instrument Institute,Shanghai Jiaotong University,Shanghai. Software Design of a New Ultrasound Hyperthermia System Based on Virtual Instrument Platform[J]. Beijing Biomedical Engineering, 2004, 23(2): 88-90 |
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| Authors: | JIANG Feng BAI Jingfeng CHEN Yazhu. Biomedical Instrument Institute Shanghai Jiaotong University Shanghai |
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| Affiliation: | JIANG Feng,BAI Jingfeng,CHEN Yazhu. Biomedical Instrument Institute,Shanghai Jiaotong University,Shanghai 200030 |
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| Abstract: | The principle of a new ultrasound hyperthermia system based on virtual instrument engineering workbench platform and its interface design are presented. Real time tissue temperature control algorithm, ultrasound applicator water temperature control and pulse width modulation(PWM) signal generation are described. The authors exert new improvments to proportional integral differential(PID)algorithm according to the specific demands of the system and achieve strict target temperature control. PWM signal is generated by 8254 chip programming. Meanwhile, water temperature control algorithm is designed. The software has experimentally proved to be reliable and meet the demand of the hyperthermia system. |
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| Keywords: | Ultrasound Hyperthermia PID algorithm Virtual instrument |
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