论述了嵌入式系统及人机交互技术的现状与发展,提出一种新颖的人机交互输入接口的思路和方法.在基于ARM[A dvanced R ISC(reduced instruction set com pu ter)M ach ines]嵌入式系统中,移植了μC/O S和μC/GU I,利用加速度传感器ADXL ...论述了嵌入式系统及人机交互技术的现状与发展,提出一种新颖的人机交互输入接口的思路和方法.在基于ARM[A dvanced R ISC(reduced instruction set com pu ter)M ach ines]嵌入式系统中,移植了μC/O S和μC/GU I,利用加速度传感器ADXL 105实现手势动作对图形用户界面中的菜单进行控制,从而实现人机交互输入.该研究改变了传统的输入方式,为以后人机接口的发展探索出一条新的途径.展开更多
We presented a wireless endoscope system developed on the embedded Linux platform. This wireless endoscope system consists of three parts: the endoscope capsule,the portable equipment and the image workstation,which m...We presented a wireless endoscope system developed on the embedded Linux platform. This wireless endoscope system consists of three parts: the endoscope capsule,the portable equipment and the image workstation,which make this system wireless and portable. Hardware design of this system and software design of the portable equipment are described. In clinical use,patients swallow the endoscope capsule for gastrointestinal inspection. The portable equipment receives images of gastrointestinal tract via the radio frequency module while it sets and reads back parameters of the capsule via the low frequency module. Acquired image data can be saved as a FAT32 format file in an universal serial bus disk. Images can be processed and reviewed at an Microsoft Windows PC workstation in the next stage. The image acquired by this wireless endoscope system is quite effective with clear details of gastrointestinal tract. However,the endoscope capsule was large,making it difficult to swallow. So the printed circuit board design of endoscope capsule needs to be improved.展开更多
文摘论述了嵌入式系统及人机交互技术的现状与发展,提出一种新颖的人机交互输入接口的思路和方法.在基于ARM[A dvanced R ISC(reduced instruction set com pu ter)M ach ines]嵌入式系统中,移植了μC/O S和μC/GU I,利用加速度传感器ADXL 105实现手势动作对图形用户界面中的菜单进行控制,从而实现人机交互输入.该研究改变了传统的输入方式,为以后人机接口的发展探索出一条新的途径.
文摘为满足微机保护变电站培训仿真系统的需要,专门设计了一种基于ARM的连接实物平台和仿真平台的接口交换装置。该装置采用μC/O S-Ⅱ实时操作系统,具有32路开入、16路开出、6路模出、1个以太网接口、2个微机保护面板接口。为使以太网数据通信通道的畅通,在分析开入流、开出流、模出流、保护流特点的基础上,提出了减少信息交换次数和压缩数据内容长度的多种方法。由多台接口交换装置组成的分布式信息交换网已在110/35/6 kV微机保护变电站培训仿真系统中得到应用。实践证明,接口交换装置运行可靠,实物平台的状态在20 m s内和仿真机内部信息一致。
文摘We presented a wireless endoscope system developed on the embedded Linux platform. This wireless endoscope system consists of three parts: the endoscope capsule,the portable equipment and the image workstation,which make this system wireless and portable. Hardware design of this system and software design of the portable equipment are described. In clinical use,patients swallow the endoscope capsule for gastrointestinal inspection. The portable equipment receives images of gastrointestinal tract via the radio frequency module while it sets and reads back parameters of the capsule via the low frequency module. Acquired image data can be saved as a FAT32 format file in an universal serial bus disk. Images can be processed and reviewed at an Microsoft Windows PC workstation in the next stage. The image acquired by this wireless endoscope system is quite effective with clear details of gastrointestinal tract. However,the endoscope capsule was large,making it difficult to swallow. So the printed circuit board design of endoscope capsule needs to be improved.
