手持练字系统的设计与实现  

Design and Realization of Handset System for Handwriting Exercise to Chinese Character

作　　者：王丁[1,2] 闫瑶 张廷宇 梁海滨 

机构地区：[1]黑龙江大学自动控制重点实验室,黑龙江哈尔滨150080 [2]黑龙江省普通高等学校电子工程重点实验室,黑龙江哈尔滨150080 [3]上海雄博精密仪器股份有限公司,上海200444 [4]哈尔滨工业大学机器人研究所,黑龙江哈尔滨150080 [5]哈尔滨光宇蓄电池有限公司,黑龙江哈尔滨150090

出　　处：《控制工程》2009年第6期705-708,712,共5页Control Engineering of China

基　　金：黑龙江省普通高等学校电子工程重点实验室科技基金资助项目(DZZD200627);黑龙江教育厅科技基金资助项目(11511282)

摘　　要：为了克服现有传统汉字书写练习方法的字贴字不集中、不能及时进行书写指导,效果反馈不及时和判定不规范的缺点,根据所提出的使用电子技术的练字方案,进行了手持练字系统的设计与实现。该系统由液晶触摸屏、硬件电路板、软件程序、控制和信号处理算法、带有笔机构的壳体和书写练习用的笔组成。使用液晶触摸一体屏和C51语言实现了触摸控制的多页面的人机界面设计,采用遗传算法进行液晶屏的在线对比度调节,采用可调背光亮度、触摸式开机和触摸屏在线校准的方法完成系统状态设置,采用数字滤波的方法处理手写练字数据,采用小波变换提取手写练字和字帖字的特征进行书写效果评分。样机的具体实现情况说明,整体方案可行,设计方法正确,较好地完成了电子式汉字练字的功能。To overcome the shortcomings of traditional handwriting exercise to Chinese character, the handset system for handwriting exercise to Chinese character is developed based on the scheme of electronic technology. The system consists of crystal touch integrated screen, electronic circuit board, control program, shell with pen mechanism and pen for handwritings. The multiple man machine interfaces controlled by touch panel are realized by crystal touch integrated screen and C51 language. Rectifying technique of contrast degree to LCD is completed on line by genetic algorithm. The configuration of system state is completed using variable back light, starting system by touch mode, rectifying touch panel on line. Handwriting data is treated by digital filer. Evolution of hardwiring performance are made, by applying wavelet transformation. The realized physical prototype shows that the total scheme is feasible, the method of design is correct and the functions of handwriting exercises to Chinese character are completed.

关 键 词：手持系统 练字 液晶触摸屏 单片机 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]