W77E58

摘要： 基于W77E58微处理器设计了卫星通信调制解调器双机热备份数据切换器。该切换器在不改变调制解调器软硬件配置的情况下实现了调制解调器的热备份。介绍数据切换器的硬件设计，并阐述了软件部分的设计。该设计缩短了卫星通信调制解调器在故障状态下的切换时间，减少了通信中断次数和时间，提高了卫星通信调制解调器的任务可用性和可靠性。%Based on W77E58 micro controller,a data switcher of hot backup for satellite communication MODEM was de⁃signed. Without changing current hardware and software configurations of the MODEM,the function of hot backup of MODEM was fulfilled. The hardware design of data switcher is introduced and the software design is elaborated in this paper. The design shortens the switch time when the MODEM is working in abnormal state,decreases the outage times of communication,and im⁃proves the mission usability and reliability of the satellite communication MODEM.

摘要： 针对院校信息化、规范化的管理要求,介绍了一种低成本嵌入式智能考勤机的设计过程.该考勤机以W77 E58微控制器为核心,将系统功能模块化设计.应用结果表明,该系统运行稳定、成本低廉,可为企事业单位提供规范化管理.

摘要： In order to solve the problem of communication such as service area of widely dispersed users, natural and man-made obsta-cles, such as mountains, large buildings, tunnels and underground market, a wireless repeater monitoring system is put for-ward. The single chip microcomputer W77E58, MAX1487, CC1000 and other chips are adopted to design control module circuit of optical far-end/terminal. Through the ATT setting, the monitoring, management, maintenance and other functions of repeat-er are realized.%　　为解决用户分散地区，自然及人为障碍物（如高山、大型建筑物、隧道和地下商场等）的阻挡和屏蔽的通信问题，提出一种无线直放站监控系统。采用单片机W77E58、MAX1487、CC1000等芯片，设计光远/近端控制模块电路。通过自动衰减控制（ATT）设置，实现完善的直放站近端、远端的监控、管理、维护等功能。

摘要： To monitor the actual signal, this paper designs the multi channel data acquisition system with W77E58 as its core, presents its frame and the hardware and software implementation methods in analog acquisition. Besides, the detailed circuit diagram and software program are shown. Field tests show that the system has the advantage of high precision, low power consumption, strong anti-interference ability and good versatility.%摘要：为了对实际信号进行监测，设计了以W77E58微控制器为核心的多路数据采集系统，介绍了系统总体结构，阐明了模拟量采集的硬件和软件设计方法，给出了具体的电路图和软件程序，经实际测试表明，该系统具有采集精度高、功耗低、抗干扰能力强、通用性好的特点。

摘要： In recent years, coal mine safety monitoring system has developed in intelligent direction. Communication sub - station is the bridge between the underground intelligent sensors and the ground monitoring computer. In this paper, the communication sub -station in coal mine based on W77E58 was introduced. The intelligent sensors in the same monitoring line were connected to a communication sub - station ; the communication sub - station completed the measurement data reception, storage and transmission to the ground moni- toring computer.%近年来煤矿安全监测系统不断向智能化的方向发展，通信分站是井下智能传感器与井上监控中心之间数据传输的桥梁，设计了基于双串口单片机W77E58的通信分站，同一监测线路的智能传感器连接到1台通信分站，通信分站来完成测量数据的接收、存储及向地面监控计算机发送的功能。

摘要： This article describes a vision based on dedicated CDMA 1X wireless data terminal,applies the embedded development technologies,designs of the hardware interfaces and software and implements a wireless data terminal based on CDMA 1X,according to the functional requirements for wireless broadband communication systems.%介绍了一种基于专用CDMA 1X无线数据终端的设想,应用嵌入式开发技术,根据无线宽带通信系统的功能需求,设计了系统硬件接口和软件,实现了一个基于CDMA 1X的无线数据终端。通过更换不同的数据源模块可实现不同的无线数据传输,从而构成不同的无线数据传输系统,因此,此系统有良好的适用性和移植性。

摘要： 设计了以W77E58微控制器为核心的多路数据采集器,说明了系统总体结构,阐明了模拟量采集的一般方法,给出了具体的电路图,经实际测试表明,该系统具有采集精度高、功耗低、抗干扰能力强、通用性好的特点。

摘要： Aiming at high integration and low cost requirements at function generator module of integrated test instrument, a digital function generator was designed based on the direct digital frequency synthesis(DDS) technology. It consisted of three parts-microprocessor systems DDS system, analog channel. Phase accumulator and the ROM stores waveform table in field programmable gate array (FPGA) were designed, to change the wave frequency by load frequency control word, to achieve the digital part of DDS system, and the MCU of W77E58 was microprocessor systems of the function generator. The test results indicate that the design of the function generator can produce sine wave,square wave and triangular wave, and accords with the system requirements on the waveform amplitude, frequency, precision of the indicator.%针对综合测试仪的函数发生器模块的高集成度和低成本的要求,设计了一个通过现场可编程门阵列(FPGA)实现直接数字频率合成(DDS)数字部分的函数发生器.它由微处理器系统、DDS系统、模拟通道3部分组成;在FPGA内部设计了相位累加器和ROM波形存储表,通过加载频率控制字改变波形频率,实现了DDS系统的数字部分,采用W77E58单片机作为函数发生器的微处理系统.测试结果表明,设计的函数发生器输出的正弦波、方波和三角波完全满足项目对波形幅度、频率、精度等指标的要求.

摘要： 本文针对CRH2A型动车组故障信息无线实时传输的课题,在研究CRH2A型动车组信息传输系统的基础上进行总体设计,确定了以W77E58高性能单片机为主体的接口系统.

摘要： 目的:设计一种基于双串口单片机W77E58的面向社区健康监测多级分布式系统.方法:采用RS422串行接口标准实现多机间全双工高性能串行通信方案,主要由生理参数检测、处理模块、数据通信模块以及上住机显示处理模块等几个部分组成,通过系统功能模块各部分的连接及软硬件设计,实现面向社区多级分布式健康监测.结果:RS422作为一种硬件设计简单、控制方便、成本低廉的通信方式,实现了这些模块的统一协调通信,实现一主(PC)多从(单片机系统之间的通信)的三级集散式测控系统.结论:提供了一个低成本、高性能的面向社区健康监测的解决方案和实现形式,可以很方便地运用到家庭移动监护中.

摘要： 本实用新型公开了一种七七五电机用清洁钩，属于商用工具。包括塑料、公魔术粘，其特征是：可以兼容D轴七七五电机，同时，可以兼容各种类型、材质的抹布，还可以兼容各种类型、材质的清洁布，其主体直径大小略小于透明玻璃杯，使其可以用于玻璃杯内部的清洁以及特种餐具的清洁，提升了七七五电机用作餐饮行业人操电动清洁设备的实用性以及性价比，满足人们对于人操电动餐饮清洁设备的实用性以及兼容性需求。本实用新型方便实用、量产成本低、制造简单、耗材兼容性强。