基于语音识别技术的语音控制智能手系统

本文以凌阳SPCE061A单片机作为核心控制器,设计了一种基于语音识别技术的语音控制智能手系统.系统由微控制器、语音模块、电机模块、光电寻迹模块、无线控制模块等部分组成.控制器利用语音模块识别出操作人员的语音命令后,通过电机模块与光电寻迹模块的协同工作来完成预设的多个复杂动作.本设计还加入了无线控制功能,可以在特殊情况下替代部分语音指令来操控智能手.     

基于NIR技术的PET/PVC废旧塑料分离系统

介绍了一种基于近红外探测技术的PET/PVC废旧塑料分离系统.该系统根据不同塑料对近红外光谱吸收不同的原理,结合窄带滤光片和光电传感器设计了红外检测装置,开发了以STM32F103X为核心,包括信号处理、A/D转换、控制模块、分离模块、CAN总线通信模块在内的自动鉴别分离系统.实验结果表明:该系统测量结果准确,响应速度...     

基于单片机的自整角机数字转换器的研制

自整角机是一种用于角度测量的微型电机,其可输出包含角度信息的四路模拟信号,为了便于信息处理,需要将这些模拟信号数字化。本文针对现有国内外数字化转换技术存在的各种问题,介绍了一种以单片机为控制和处理核心的自整角机信号数字化方案。该方案主要包括硬件电路设计和系统程序设计,硬件电路包括:A/D转换模块、单片机模块、系统接口模块。系统程序包括:系统初始化、A/D转换时序控制、数值计算和数据输出。与现有技术相比,本方案电路简单,加工方便,精度高。     

测控中高精度快速A/D采样转换模块设计

本文提出了一种应用于测试诊断系统的高精度A/D采样模块设计方案.根据测控系统的设计要求,分析了A/D转换芯片的选择依据,并对选定的芯片内部结构特点进行了论述.文章重点分析了A/D转换模块中的量化与过采样技术的实现,绐出了具体的计算公式和实现方法,最后为了提高转换模块的可靠性,分析了该模块在设计中应注意的可靠性设计技巧.     

语音识别的智能门控系统设计

该智能门卫系统采用语音识别技术.在陵阳单片机SPCE061A上实现.硬件部分主要由SPCE061A单片机、电源与门控电路、外扩存储器SPR4096、音频输入与输出电路等组成.主要技术是该单片机在语音识别中的应用和对门控电路的设计.该系统软件部分由语音训练模块、语音识别模块、语音数据处理模块、语音播报模块和密码输入与确认模块组成,通过对系统的初始化和识别训练实现了语音数据的采集、特征提取、特定语音识别和语音播放等功能.根据语音识别算法原理,对语音信号的预处理、特征提取、模式匹配做了分析.该系统实验结果表明,系统性能稳定,识别效果好,可用于家庭或小型办公场所的门锁控制.     

基于Simplorer的全桥PWM控制器ISL6752的仿真研究

以一种新型的PWM控制器ISL6752为核心,对其控制机理进行分析,在Simplorer7.0仿真平台基础上建立了ISL6752内部振荡模块、PWM产生模块、延迟或前置等关键模块的模型,以一台48 V/20 A的原理样机为例,进行理论设计与系统综合仿真,其模型对于原理性分析以及整定控制网络的参数具有重要的指导价值.     

基于FPGA的简易双相信号发生器的设计

本系统是以 Altera Cyclone Ⅱ EP2C8Q208C8N为核心控制器,利用 FPGA 芯片完成了正弦波和方波信号的发生及其参数的调节功能.该系统主要由四个模块组成;电源模块、控制模块、D/A转换模块及滤波模块.控制部分用VHDL语言实现了一个直接数字频率合成技术(DDS)的信号发生器,该信号发生器在特定的频率范内可以两路输出正弦波、方波.这是一个频率、幅度和相位可控的简易双相信号发生器,并且可以实现波形输出选择等多种控制功能.     

基于生物特征识别技术的汽车防盗系统的设计

提出一种基于生物特征识别技术的汽车防盗系统的设计实现方案.系统主要由凌阳公司的SPCE061A微处理器、光学指纹模块、GPRS模块等组成.给出该防盗系统的硬件和软件设计方法.系统采用嵌入式开发平台和技术,简化外围电路的结构,降低系统的成本,为汽车防盗提供低价格、低功耗、高性能的解决方案.     

滑动式指纹识别模块TCS3C-TCD42A的单片机控制

介绍了利用单片机Atmega48与指纹识别模块TCS3C-TCD42A构建小型指纹识别系统的全过程,简要介绍了TCS3C-TCD42A模块的功能和特点,给出了指纹识别系统结构框图.论述了单片机对指纹识别模块的控制,包括单片机与模块的接口方法、通信协议、主程序、接收中断处理模块和通信处理模块的编程思路及注意事项.该系统在实际使用过程中,运行稳定,通信性能良好,已经成功应用于指纹保管箱产品中.     

ARINC735A接口协议的设计与实现

为了实现机载防撞系统(TCAS)主机与外围功能单元的高效连接,需要定义和设计相关的接口协议.根据美国航空无线电设备标准ARINC735A定义的TCAS系统必须满足的DO-185A的接口和协议,分析和讨论了ARINC735A协议模块在TCAS系统中的功能和上下文关系,在此基础上详细描述了ARINC735A协议模块各组件的功能.采用软件工程的设计方法,系统地定义和设计了实现该协议模块功能组件的状态和流程,并给出了相应的状态转换图.讨论了在嵌入式环境下对AR-INC735A的多任务实现方法,并且在VxWorks嵌入式操作系统环境下,实现了ARINC735A协议的多任务软件模块.     

Classification knowledge discovery in mold tooling test using decision tree algorithm

The scale of Taiwan’s mold industry was ranked the sixth in the world. But, under the global competitive pressure, Taiwan has lost its competitive advantage gradually. The only chance of Taiwan’s mold industry lies in improving the competitive abilities in product research, development and design. In mold manufacturing cycle, mold tooling test plays a very important role at accelerating the speed of production. An experienced engineer can minimize the error rate of mold tooling test according to his rich experiences in parameter adjustment. However, this experience is mostly implicit without theoretical basis and its knowledge is difficult to be transmitted. Benefiting from the well development of data mining technologies, this study aimed at constructing an intelligent classification knowledge discovery system for mold tooling test based on decision tree algorithm, so as to explore and accumulate the experimental knowledge for the use of Taiwan’s mold industry. This study took the only high-alloy steel manufacturer in Taiwan for case study, and performed system validation with 66 record data. The results showed the accuracy rates of prediction of training data and testing data are 97.6 and 86.9%, respectively. In addition, this study explored two classification knowledge rules and proposed concrete proposals for tooling test parameter adjustment. Moreover, this study provided two ways, rule verification and effectiveness comparison of four mining algorithms, to conduct model verification. The experimental results showed the decision tree algorithm has an excellent discriminatory power of classification and is able to provide clear and simple reference rules for decisions.     

检修公司人事劳资管理系统

检修公司人事劳资管理系统是典型的管理信息系统(MIS),本系统所创建的模块实现了如下功能:基本信息管理模块包含部门信息管理模块和员工信息管理模块,可以实现部门信息和员工信息的增加、删除、修改、查看功能;考勤考评管理模块可以实现记录的创建、修改、删除、查看功能;员工工资管理模块可以实现对员工的基本工资进行设定,对奖金以及福利补贴进行设置,用户可根据当月的情况对实发工资计算公式进行调整,根据出勤统计结果来计算本月各项实际金额以及对统计出的工资进行浏览;系统用户管理模块可以实现对普通用户的创建、密码复位、删除用户、修改自身密码,并且实现了用户的分权限管理,系统管理员具有操作本系统的所有权限,而普通用户只具有浏览权限;日志管理模块具有操作日志功能,普通用户只能浏览日志信息,管理员用户既可以浏览,又可以清空操作日志记录。     

Geometric algorithms for automated design of multi-piece permanent molds

Multi-piece molds, which consist of more than two mold pieces, are capable of producing very complex parts—parts that cannot be produced by the traditional molds. The tooling cost is also low for multi-piece molds, which makes it a candidate for pre-production prototyping and bridge tooling. However, designing multi-piece molds is a time-consuming task. This article describes geometric algorithms for automated design of multi-piece molds. A multi-piece mold design algorithm has been developed to automate several important mold-design steps: finding parting directions, locating parting lines, creating parting surfaces, and constructing mold pieces. This algorithm constructs mold pieces based on global accessibility analysis results of the part and therefore guarantees the disassembly of the mold pieces. A software system has been developed, which has been successfully tested on several complex industrial parts.     

HSC-1.1:A USEFUL TOOL FOR INJECTION MOLDING

An integrated CAD/CAE/CAM system, HSC--1.1, is described in the paper. HSC--1.1integrates surface modeling, mold design, technological simulations and NC machining into a full CAD/CAE/CAM system with data exchange from one module to another. The practice shows that HSC--1.1 is a useful tool for injection molding and can assist engineers in reducing mold cost and improvingmold quality.     

注塑模具CAE前后处理系统的设计与实现

本文详细分析了塑料模具计算机辅助工程（ＣＡＥ）前、后处理系统的功能及特点，针对有限元和边界元方法解决塑料模具设计仿真分析的特点，设计并实现了塑料模具ＣＡＥ前、后处理系统。该系统不仅能很好满足注塑模具ＣＡＥ的需求，而且具有通用性，建立、修改模型高效简单，可应用于其它领域ＣＡＥ系统的前、后处理系统。     

电子电工产品环境试验信息管理系统的设计与实现

为更有效地对电子电工产品环境试验进行数据统计及分析,设计试验信息管理系统,根据客户需求及用例分析,建设数据库及信息管理系统。系统界面直观,易于操作,可提高环境试验数据分析及信息管理的效率。     

A multidisciplinary framework to support the design of injection mold tools

The design of injection mold tools is a complex process for which market pressures demand ever-shorter development time and higher quality level. Thus, it is considered imperative to adopt new methods and tools to support the design process, in order to achieve a more effective mold design solution. Based on this assumption, a multidisciplinary framework was developed, centered on Design for Six Sigma methodology and reinforced with a set of highly valued techniques, namely: the European Customer Satisfaction, the Axiomatic Design and the Multidisciplinary Design Optimization. As a result, a platform was built to support the design of any mold tool without undercuts, which tackles the design of an injection mold as a fully integrated multidisciplinary optimization problem, oriented by customer preferences and their impositions. A set of specific analysis sub-modules is integrated through an overseeing optimization code system, responsible for the numerical simulation of the injection process. This platform was validated through the comparison with an existing mold, whose results attained highlight the great potential of the proposed framework to achieve mold design improvement. In particular, the value of mold solutions generated led to a global improvement on mold performance by 5 %.     

A visual mold with variotherm system for weld line study in micro injection molding

In order to study the weld line developing process and its influence on mechanical properties in micro injection molding, a visual mold with variotherm system mold was designed and fabricated. In this mold, a visualization design and a rapid heating/cooling system were integrated, and specimens with different cross section shape and micro dimensions could be molded for weld line study. The building process for the visual and variotherm mold was presented and the experiments were executed. The specimens for weld line study of micro injection molding were produced applying different processing parameters. A problem of flash in molded specimens needs to be solved.     

Gas-assisted microstructure elastic multiform UV imprint replication molding technology

This study developed an innovative gas-assisted microstructure elastic multiform UV imprint replication molding technology. It first designed and fabricated the upper closed gas chamber and lower four-directional extension open imprint chamber system. Then, ANSYS software was used to analyze the axial stress uniformity of the multiaxial extension of the flexible mold and design the extension angle. A gas-assisted elastic multiaxial UV imprinting system was designed. The imprint uniformity and stability were tested and discussed by gas-assisted pressing and pressure sensitive adhesive tape. After regulation and control of elastic multiform variation of the lower chamber, the four-axis microstructure component transfer printing was tested. The experimental results showed that the imprinting system proposed in this study effectively controls the imprint mold shape in the elastic range with the flexible mold, and the gas-assisted uniform pressing transfer printing replication proves that excellent complementary structures of imprint replication can be obtained. This process technology greatly reduces the time and energy consumption of microelectromechanical process, providing a faster and economical option.

     

并行环境下注塑件智能设计支撑技术研究

注塑件设计是注塑模设计制造的第一步,注塑件设计的优劣以及注塑件产品模型信息的完备与否,对注塑模设计制造的难易以及成形工艺参数的选择都具有十分重要的作用。本文从构造新一代注塑模设计制造系统的出发,探讨注塑件智能设计的支撑技术,提出采用并行工程设计思想,以基于特征的产品建模方法构造注塑件产品模型;结合神经网络和专家系统的特长,构造神经网络与专家系统混合系统;利用特征和知识紧密的关系,实现注塑件以及注塑