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According to the internal structure of RFID tags, they are divided into active tags with battery (Tony Note: Also called active tags) and passive tags without battery (Tony Note: Also called passive tags) these two types. The Passive Tag uses the radio waves sent by the reader as the power to start the IC circuit. Therefore, it has the advantage of semi-permanent use, but the communication distance is shorter than that of the active tag. On the other
Antennas are rectangular, circular, and rod-shaped. Generally, the longer the communication distance is, the larger the size of the antenna. However, in actual use, when tags are attached to an item, even the RFID tags of the business card size are too large. In fact, the size and shape of the RFID tag in use need to be selected based on the communication distance. Currently, antenna materials include al
× Winding Process It is a process that combines an antenna and an IC loop to form a module. It takes some time to mount modules one by one on a thin board. Therefore, high costs are not suitable for mass production. However, compared with other manufacturing processes, the tag communication distance is improved. × Etching ProcessIt is a process of forming an antenna by etching aluminum or copper film on the pet Film Board. Figure 4 shows an item (using an etching antenna in an IC circuit). B
The worry about RFID security is not new. However, these concerns grew when the US MRT company and Chase started issuing RFID-enabled credit cards last year. The fear escalated when researchers at the University of Massachusetts announced in October this year that they had breached the credit card RFID security feature. RFID
The course report for a course in the undergraduate course period ~~ The content includes introduction to RFID, market application and prospects, working principles, risks, security and privacy policies, and a total of 5 points. Because the length is too long, we will divide it into two blog articles. The first part of this article is the introduction, market application and prospects, and working principles. 1. RFIDIntroduction
From software to hardware, IBM and other companies have long been equipped with RFID (Radio Frequency identification, radio frequency identification) technology, users are full of expectations. IDTechEx Company's latest survey shows that, including systems and services, the RFID market will rise from 2.7 billion U.S. dollars in 2006 to 12.3 billion U.S. dollars in 2010, to 2016 market size will likely expa
The "Wanderer" and "intelligent No. 1" selected the "impact" option ". The scientific value of impact is very limited. No matter how Mars and the Moon have been logged on by detectors, it is possible to collect all kinds of data in a more peaceful and friendly way; and our earth scientists, but chose the most "brutal" approach-impact. Assume that the target star has a life -- Humans have not found life in stars other than the Earth, but they do not
RFID (Radio Frequency identification): A tutorialcontents: Introduction to Radio Frequency Identification-rfid What is RFID Compare RFID with Bar Code technology Benefits of RFID Disadvantages of RFID
many, but actually found a sign of life?Mars is an object that humans have been reluctant to abandon, and has been tracking research for years, hoping to find the answer to life on Mars.650) this.width=650; "src=" Http://img.mp.itc.cn/upload/20160613/d50c828dead14598b62407ea6f7e0f43_th.jpg "style=" border:0px;margin:0px;padding:0px;font-size:0px; "/>The Curiosity rover landed on August 5, 2013 at the Mars Gale Crater, which began a two-year surface e
When I was a child, watching cartoons depicts a highly developed Robot Intelligence society. Robots not only have feelings, can think, but also organize democratic elections. With the advantage of quantity, vote for a robot president ...... Human being controlled by machines has become a popular topic of science fiction in a period of time. Of course, this is not happening now. However, we cannot say that humans have escaped the control of machines. I
In mid-December, I had an in-depth dialogue with the Internet prophet, former editor of Wired magazine, and Kevin Kelly (KK), author of Runaway. In the process of dialogue, KK says AI is the technology that is going to be a big line over the next 20 years, but AI will not replace humans. KK said that humans are destroyed by robots is a very typical Hollywood scene, the first robot needs to know how to elimi
, Bumba suffered from stomachache and vomited out of the sun. The sun burned some water and left the land. He still had a stomachache and spit out the moon and stars, then spit out some animals, such as leopards, crocodiles, turtles, and finally people. Like many other myths, the myth of this century tries to answer the question we all want to ask: Why are we here? Where do we come from? The general answer is that the origin of mankind is more recent. Humans
* Some of the information comes from our PhD's PPT, partly from the Web and others ' papers.* The textbook we use is the Smart Card Technology (fourth edition)--ic card, RFID tag and Internet of Things (Tsinghua University computer series textbook) published by Tsinghua University Press (Wang Aiying)* I just sorted out the contents belowRadio Frequency Identification Technology Radio Frequency Identification (Radio Frequency identification,
resolution must be at least one level lower than that of air. This is not a naked fool. Dell! It's just you. The resolution of 13-inch 1366x768 means that the moto lapdock that sells 10 thousand or 2,800 pieces has this resolution, even if you are the smallest 13-inch, it uses an 11-inch resolution or slag. Asus is the only one who has sincerity in the Ultrabook resolution. The 13-inch zenbook is now the same as the 900-line resolution of air (the width is larger than that of air ), in the futu
CAPTCHAs is an annoying technology. According to data statistics, users around the world need to complete 0.1 billion CAPTCHA tests every day. ReCAPTCHA is a project launched by the University of Carnegie Mellon to digitize the old books with the catptcha technology. It is estimated that the technology can complete 160 books a day. The reCAPTCHA technology, reCAPTCHA, has been deployed on 40000 websites.The basic principle is that for optical character recognition (OCR) software, their recogni
slope of a tooth fossil after dating, reporters learned thatHuang Wanpo, a researcher at the Institute of Ancient Vertebrates and ancient human studies of CAs, is available 2.04 million years ago. The left mandible of the "witch-climber",This is not only the earliest ancient human fossils found in China, but also the prehistoric culture of China forward for more than more than 1 million years, which shows that 2.04 million years ago, the Chinese land has a human footprints, and keel slope cultu
theory of relativity, God changed his mind:" When man thinks, God is nervous. ）If the relativity and quantum theory is not cold or to brush up on the classic Newton Mechanics bar (textbook words will not paste, say a bit straightforward) Newton's first Law: No force is kept or not moving; Newton's second law: to accelerate the force; Newton's third law: I give you strength, you have to give me strength. Look at Newton's law and look at himself, and have to admit that Newto
NASA's Jet Propulsion Laboratory announced on September 25, that at 07:53, US West time (, 26 Beijing Time ), the US "Phoenix" Mars Landing rover has successfully landed near the Mars Arctic. Below are some photos of Mars returned by Phoenix. The terrain of the Mars Arctic plain (desolate, probably very hot, or very cold) Phoenix landing points on Mars) Wow! What is the highlight? Is it a UFO or a Mars creature. Phoenix shadow The stereo camera of the Phoenix detector looks dow
Humans are naturally more suited to Vegetarian diets? Cloud unintentional http://songshuhui.net/archives/80399 rumors: by comparing the anatomical structure and physiological function of grass food animals, meat animals and people, it is concluded that "human structure is more suitable for vegetarian ". The reason is: 1. the teeth and jaw bones of a person are suitable for ground-up vegetarian food, rather than tearing meat; 2. the human saliva is wea
-pizza '] = Self.username return rUse:>>> requests.get (' Http://pizzabin.org/admin ', Auth=pizzaauth (' Kenneth ')) AgentUsing proxies:Import requestsproxies = { "http": "http://10.10.1.10:3128", "https": "http://10.10.1.10:1080",} Requests.get ("http://example.org", proxies=proxies)You can set environment variables:$ export http_proxy= "http://10.10.1.10:3128" $ export https_proxy= "http://10.10.1.10:1080" $ python>>> Import Requests>>> requests.get ("http://example.org")If the agent
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