In company,i am developing the android application software in the software department,i master Android four basic component technologies in the work,and be able to use activity、broadcast receiver、content provider and service to the actual development work,i also master Android framework layer knowledge,data storage methods of SharedPreference and SQLite database technology, thread synchronization and asynchronous method, IPC process communication method, JNI multi-language programming method, HTTP and socket network communication, etc.I operate the development tools mainly based on Ubuntu platform in Company, I also master basic linux commands and be familiar with ADB, SVN, FastBoot and other managing and debugging code tools; I manage the research and development work in company about one-dimensional and two-dimensional code scanning module, The intelligent terminal scanning platform mainly to the enterprise provide one-dimensional scan code and two-dimensional code service. Scanning module are worked through the upper Android application、JNI and kernel drive.So i know about the Serial Communication and I2C Protocal,know about the Driver knowledge and V4L2 interface,and analysize the camera native frame and HAL frame deeply.And i learn about the method to develop HAL soft frame.I also master of Android framework layer and in the company's actual development of Android power management software, the software achieve a long standby mode of mobile phones and smart power saving mode, the software can list the running software on the phone and the running software can be closed in this software platform,in order to start the software or not auto-started when the phone was booted,the user can open or close the boot feature through power manager software, and i am also responsible for the management of mobile phone platform FileExplorer file manager, Calculator calculator, Browser browser, Camera, Email mail,File Encryption management.

Part-time job experience in graduate students Period:Working experience in graduate students:Project name is vacuum cold spray particle velocity detection software,I develop the software using C++ oriented object language in the windows operating system, the software can not only acquire and storage particle velocity parameter real-timely by file memory mapping technique, and clearly show the image of the particle signals through the TeeChart control technology, and through the corresponding algorithm calculation particle in-flight velocity value and the vacuum cold spray particle velocity measure the velocity accurately. I am responsible for writing particle data storage algorithm, display particle waveforms algorithm,and low pass filtering algorithm combined with 16 neighborhood average denoising algorithm in the project, using the corresponding filtering denoising method and then using the least square normal fitting algorithm on particle signal data, and obtained particle in-flight velocity value through the speed algorithm ,this software successfully applied in xi'an jiao tong university and applied for the patent for invention.