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接口技术 net_tcp.h
/*
*********************************************************************************************************
*                                             uC/TCP-IP V2
*       ...
源码 网络爬虫编程
网络爬虫
网络爬虫在CPP中爬行链接到你想要的深度。控制台应用程序
  Ubuntu 14.04 LTS上编译的程序
  用g+编译器编译
相依性
  卷曲
  Boost图书馆
用于编译的命令
  G+爬虫.cpp-lcurl-lost_regex-o爬虫
输入
  URL：您想要抓取示例“dirghbuch.com”的URL
  链接数：要从 ...
书籍 Digital Transmission
While teaching classes on digital transmission and mobile communications for
undergraduate and graduate students, I was wondering if it would be possible to
write a book capable of giving them some insight about the practical meaning of the
concepts, beyond the mathematics; the same insight that exp ...
书籍 Mobile+Communications+An+Introduction+to+New+Media
Do you have a mobile phone? We think you probably do, one way or another. We
would also guess that you might use it for many diff erent things in the course of your
everyday life—as a telephone certainly, but also as an address book, as a clock or
watch, as a camera, or now as a connection to your ...
书籍 RFID+as+an+Infrastructure
RFID (radio-frequency identification) is the use of a wireless non-contact system
that uses radio-frequencyelectromagnetic fields to transfer datafrom a tag attached
to an object, for the purposes of automatic identification and tracking [38]. The
basic technologies for RFID have been around for a l ...
书籍 RFID+Security
Radio frequency identification (RFID) is a type of automatic identification systems
which has gained popularity in recent years for being fast and reliable in keeping
track of the individual objects. In RFID systems, contactless object identification
is achieved using radio signals without the need ...
技术资料 IEC 62368_2014--安規
THIS PUBLICATION IS COPYRIGHT PROTECTEDCopyright © 2014 IEC, Geneva, SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any formor by any means, electronic or mechanical, including photocopying and microfilm, without permission i ...
技术资料 Agilent 34401A Service Guide.pdf
Agilent 34401A Service Guide.pdfIEC Measurement Category II includes electrical devices connected to mains at an outlet on a branch circuit. Such devices include
most small appliances, test equipment, and
other devices that plug into a branch outlet
or socket. The 34401A may be used to make
measurem ...
技术资料 基于单片机的红外测温装置设计
温度控制如今已成为当代社会研究的热点之一,而温度检测在现代设备参数检测中也是一项极其重要的技术,应用十分广泛。与传统的测温方法相比,红外测温方法具有时间短、精度高、使用简单方便等优点。本文以环境温度为被测对象,设计了以STC89C52单片机为控制中心的红外测温装置,能够实现对目标温度的实时采集、处理、显示和报警 ...
技术资料 基于STM32单片机设计的非接触式电流检测控制系统
本系统基于STM32单片机设计的非接触式电流检测控制系统,通过OPA548片将所给任意信号放大,由100Ω电阻和INA128芯片进行电流电压转换放大后,利用STM32单片机对获取的电压信号以0.488μs频率采样,利用STM32单片机的FFT库,获得信号的谐波信息。测量电流信号精准,该设计可广泛应用在以STM32单片机为核心控制器件的新型仪表中,性 ...