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交流微网仿真，包括微电源的仿真，变流器的仿真，储能系统的仿真和整个微网的仿真。(modeling of AC microgrids,including models of microsources,converters,storage system,and the entire microgrids.)

电脑鼠底层驱动，能实现曲线转弯，速度快，很平稳(Computer mouse driver, can realize curve curve, speed, very smooth )

Very hard to find Texas Instruments software (ADP.exe) for calculating circular and rectangular coils for RFID application (13.56Mhz and 125kHz). Software is very accurate. Software is 16-bit, so it must be run on Windows XP (not compatible with Windows 7)

说明：  LWIP嵌入式协议栈详解，包含TCP/UDP/SLEVER模式，简介好用(LWIP Embedded protocol stack)

说明：  单片机 LCD12864显示演示程序(Singlechip LCD12864 show demo)

AD7705驱动程序，通过51实现，希望有用。(AD7705 driver, 51 achieved by the hope that useful.)

汉字转换 汉字与Unicode相互转换，在有的时后不知道该汉字的Unicode编码 该小工具可以帮助到你@！(Kanji conversion characters and Unicode conversion, after some time did not know the Unicode encoded characters to the gadget can help you @!)

于市售 STM32 开发板上实现特定人语音识别处理项目。识别流程是：预滤波、ADC、分帧、端点检测、预加重、加窗、特征提取、特征匹配。端点检测(VAD)采用短时幅度和短时过零率相结合。检测出有效语音后，根据人耳听觉感知特性,计算每帧语音的 Mel 频率倒谱系数(MFCC)。然后采用动态时间弯折(DTW)算法与特征模板相匹配,最终输出识别结果。先用Matlab对上述算法进行仿真，经数次试验求得算法内所需各系数的最优值。而后将算法移植到 STM32 开发板上，移植过程中根据 STM32 上存储空间相对较小、计算能力也相对较弱的实际情况，对算法进行优化。最终完成于 STM32 微处理器上的特定人语音识别系统。(Implement speech recognition processing project in commercially available STM32 development board. Identification is the process: pre-filter, ADC, framing, endpoint detection, pre-emphasis, windowing, feature extraction, feature matching. Endpoint detection (VAD) short-time amplitude and short-term zero rate combined. After detecting an effective voice, according to the characteristics of human auditory perception, calculated for each frame of speech Mel Frequency Cepstral Coefficients (MFCC). Then dynamic time warping (DTW) algorithm and feature template matches the final output recognition result. First with Matlab simulation algorithm described above, after several trials to get the optimal value of each coefficient within the desired algorithm. The algorithm will migrate to STM32 development board, the porting process according to the STM32 relatively small storage space, computing power is relatively weak situation of the optimization algorithm. Finally completed on the STM32 micr)

基于KEIL C51和MC55模块的短消息发送和接收程序源代码,C51控制，AT命令实现(based KEIL C51 and MC55 module of SMS sending and receiving the source code, C51 control, AT commands)

说明：  C语言程序，ieee标准格式转浮点型数字(c language, ieee to float)