基于语音的微机控制报警器

提出了以8031单片微机和ISD2590语音芯片为核心的微机控制报警器的设计方法，介绍了ISD2590的特点和使用方法，阐述了系统的硬件设计和软件设计。     

A New Implementation of the Post-Stage Tasks of Motion Estimation Using SIMD Architecture

IntroductionThe MPEG2 [1] video compression standard is oneof the key technologies for applications such asdigital broadcasting,storage media,etc.Recently,some single chip video encoders havebeen developed for the MPEG2 standard. Thedevelopment of hardware architecture suitable forsystem integration is the key to single chipimplementation.Motion estimation/compensation is the keypart of a single MPEG2 video encoder chip. It hasa great impact on the chip size,the powerdissipation,and the …     

Optimal design of label-free silicon“ lab on a chip” biosensors

This paper reported the optimal design of label-free silicon on insulator(SOI) "lab on a chip"biosensors.These devices are designed on the basis of the evanescent field detection principles and interferometer technologies.The well-established silicon device process technology can be applied to fabricate and test these biosensor devices.In addition,these devices can be monolithically integrated with CMOS electronics and microfuidics.For these biosensor devices,multi-mode interferometer(MMI) was employed to combine many stand-alone biosensors to form chip-level biosensor arrays,which enable realtime and label-free monitoring and parallel detection of various analytes in multiple test samples.This sensing and detection technology features the highest detection sensitivity,which can detect analytes at extremely low concentrations instantaneously.This research can lead to innovative commercial development of the new generation of high sensitivity biosensors for a wide range of applications in many fields,such as environmental monitoring,food security control,medical and biological applications.     

一种应用于智能电网的多路数据采集系统设计

数据采集技术是信息科学的一个重要分支,更是智能电网中一项重要的技术。设计出了一种具有8通道模拟量输入及开关量输入/输出、日历等功能的通用多路数据采集系统,采用的控制器的核心器件为TI公司的MSP430F149,指出该系统具有功耗低、体积小、易操作等优点。     

单片机控制多功能显示系统的设计与实现

采用单片机作为系统核心控制部件，该系统具有利率显示、日历时钟、字显示功能。作为DS12887的应用，介绍了它与8031单片机构成的时钟系统电路。     

Parametric resonance and cooling on an atom chip

This paper observes the parametric excitation on atom chip by measuring the trap loss when applying a parametric modulation. By modulating the current in chip wires, it modulates not only the trap frequency but also the trap position. It shows that the strongest resonance occurs when the modulation frequency equals to the trap frequency. The resonance amplitude increases exponentially with modulation depth. Because the Z-trap is an anharmonic trap, there exists energy selective excitation which would cause parametric cooling. We confirm this effect by observing the temperature of atom cloud dropping.     

微机有载调压变压器自动调压装置

探讨以ＭＣＳ－５１单片微型计算机为基础的自动调压装置及在有载调压变压器上的应用。给出为实现该装置主要功能而配置的硬件系统和主要软件的设计，并提出旨在电力系统中应用这种新型装置的几点看法。     

群钻钻削力研究：群钻钻削的流屑角模型的试验验证（Ⅱ）

通过钻削的流屑角试验，验证了群钻钻削的流屑角模型的可靠性。     

通用单片机定时系统

本系统利用单片机定时器／计数器具有的两种控制方式，采用将等控时间与时钟时间相比较的方法实现定时，定时时间可由用户随意输入给定，因此本系统具有很强的通用性和灵活性，可广泛应用于各种实时控制领域。     

MCS-51单片机控制的直流PWM随动系统

本文介绍一种由单片微型计算机控制的直流PWM随动系统。该控制系统可用于数控机床的定位控制等方面。系统具有控制精度高、运行可靠等特点。该系统的位置环由单片机控制调整。它不仅仅简化了系统结构,使系统的性能价格比提高,而且使系统具有较高的控制精度和可靠性。另外,该系统还具有误差显示,键入调整控制参数的功能。本文中给出了系统的硬件框图与软件程序框图,并给出了实验结果。在本文的最后,又提出了进一步提高控制精度的改进措施。