rfid interrogator

As the chip price falls and the global market expands, NFC applications grow rapidly. The falling price of passive tags makes it popular to use NFC for inventory management, payment, and other applications. This article describes how NFC works, how NFC is used, and where it is used. Introduction This article translated from inside NFC: usages and working principles Near-Field Communication (NFC) is the technical standard for short-distance wireless communication. NFC is designed for

In the past few days, the Basic Debugging of rfid is almost the same. It is a real building process from scratch, and it has a great sense of accomplishment. The following describes the jni of rfid..This jni development uses android ndk tools.In jni development, the most important part is the jni data structure. During the development process, I also found a lot of information on the Internet. Below is a go

Knowledge Point Analysis: NFC (Near Field communication) is close-range wireless communication technology. Developed by Philips and Sony, NFC is a non-contact identification and interconnection technology that enables close wireless communication between mobile devices, consumer electronics, PCs, and intelligent control tools. NFC provides a simple, touch-only solution that allows consumers to easily and intuitively exchange information, access content and services. Operation Steps: NFC techn

series resonance circuit, which is the same as the frequency of the reader, in this way, under the electromagnetic wave excitation, the LC resonance circuit generates resonance, so that the capacitor has a charge. At the other end of the capacitor, there is a one-way conduction electronic pump, the charge in the capacitor is sent to another capacitor for storage. When the accumulated charge reaches 2 V, the capacitor can be used as a power supply to provide the working voltage for other circuit

NFC Definition Near-Field Communication ( English:Near Field Communication , NFC ), Also known Short-range wireless communication It is a short-distance high-frequency wireless communication technology that allows electronic devices to transmit non-contact point-to-point data and exchange data within 10 centimeters (3.9 inches. This technology evolved from contact-free radio frequency identification (RFID, which is widely used in public transit s

1. What is BizTalk Server?Biztalk is a business process management server used to connect people and processes, effectively manage and improve the information required by the business. In the original version of the businessBased on Process Management and SOA/ESB, BizTalk Server 5th R2 helped organizations further expand their core processes.Management technology.2. What new functions does BizTalk Server 2006 R2 provide?Biztalk Server 2006 R2 contains new features that address core competitivene

Internet of Things (IOT) refers to the use of various information sensing devices, such as RFID) devices, infrared sensors, global positioning systems, laser scanners, and other devices are combined with the Internet to form a huge network. The purpose is to connect all items with the network for easy identification and management. Iot is built using ubiquitous network technologies. The most important technology is the

MES manufacturing execution system is a set of software for effective management of workshops. It can supervise, track, manage and control workshop production activities to achieve visual management and agile manufacturing of workshops. The MES manufacturing execution system can exchange data between the control layer and the underlying control layer of the ERP system in real time, and can also be integrated with other manufacturing information management within the enterprise, the seamless inte

Cosine Function I have seen several articles written in foreign countries. I still have a Paper. I forgot where to put it.And then see the ghost: http://www.bkjia.com/Article/201003/45234.htmlMr_xhming of: http://www.bkjia.com/Article/201003/45216.html I have already described the application of bar code attacks in the xeye group some time ago.To be honest, there is almost no novelty except the bar code itself. The input here is the bar code reader. The entered content is a bar code, which is

"Walk-Man" to listen to Walkman Cd AND MD. Now all MP3 files in a matchbox are ready, and the price is cheap. I bought a second-hand CF card online. Take it back and use the data recovery software. There are several photos of criminal cases on the scene, with bloodshot spots. He also shot the victim. I don't know which police station has eliminated this card. If the investigation is initiated, some people must be affected. This kind of thing will not happen in the Age of film. But today, new pr

. There are two computers, one server, and the configuration is very high and the running speed is very slow. So far I have not figured out that the 32 GB memory is so slow, because the system is Windows Server 2008? The other is the monitoring computer, Dell's desktop, which is not connected to the Internet so far. It is very fast and uncured. I wrote code on the monitoring computer and copied it to the server to run (test ). On October 13, September 16, we started the development of the LED bi

I believe everyone is clear about the mainstream wireless protocols. This article will introduce the wireless network protocol RuBee. Although it is not well known, it also has broad application prospects. I hope this article will help you. You are familiar with ZigBee and are seeking for WiBree usage. Now you need to get familiar with another wireless network protocol RuBee, also known as IEEE 1902.1. Retailers and manufacturers can select this new standard outside of

without stealing personal information from employees.Redteam Security's Mattgrandy explains that hackers use specific devices when they visit a target company, which costs only $350.Redteam's security advisor, Mattgrandy, said: "(We) have access to large-scale, long-distance readers from the Amazon Marketplace, and they can also be bought from ebay. ” The hacker pretends to be a student visiting the company, placing the device in a laptop bag that intercepts the encrypted communic

", Eventbackbutton, false); Returns the key Document.addeventlistener ("Menubutton", Eventmenubutton, false); Menu key Document.addeventlistener ("SearchButton", Eventsearchbutton, false); Search key INITNFC (); }, }; Return key function Eventbackbutton () {window.location.href = "indexlist.html";}//VegetableSingle-key function Eventmenubutton () {//window.plugins.toastplugin.show_short (' Clicked on menu button! ');}//Search keys function Eventsearchbutto N () {//window.plugins.toastplugi

vehicle passes through the gate, the system starts the anti-smashing vehicle detection device to preventHit the car, the vehicle through the road brake, automatic closure of the road brake.When the vehicle arrives at the exit, the system automatically identifies the card number by reading the RFID card information. Through the internal database of information retrieval, to find the corresponding vehicle records. Interface displayThe user type, licens

authentication" integration, that is, "single sign-on."In information security management, access controls surround four processes: Identification;authentication;authorization;accountability. Single Sign-on is part of the Authorization licensing system and includes: Lightweight Directory Access Protocol and Authorization ticket, in addition to single sign-on. Let's introduce SAP SSO single sign-on one-point login SAP Portfolio SAP single sign-on provides simple, secure access to IT application

concerned by many vendors, many well-known manufacturers have launched their own cloud storage services such as Amazon's simple storage services S3, Google launched the online storage services gdrive, Microsoft launched the Windows Azure storage services.The use of local networks or the Internet and other communication technology to the sensors, controllers, machines, people and things through a new way together, the formation of people and things, things and things linked to achieve informatio

radio communication Touching them together or bringing them into close proximity, usually no more than a few centimeters.Feature Small dimension and easy-to-embed into your project Support I²c, SPI and HSU (high speed UART), between those modes Support RFID reading and writing, peer communication with peers, NFC with Android phone RFID Reader/writer supports: Mifare 1k,

have not adapted to the needs of modern teaching, and the new modern intelligent classroom system based on the Internet of Things technology integrates intelligent teaching, personnel attendance, asset management, environmental wisdom adjustment, video surveillance and remote control in one step. As a new form of education and modern teaching means, smart classroom brings new opportunities to the education industry.Smart Classroom equipment can reflect the three levels of the Internet of Things

EPC (Electric Product Code) is a standard for the sensing layer of the Internet of things, mainly to define how to define the electronic tag, which includes many rules.The Internet of things is divided into three layers: the perceptual layer, the network layer and the application layer. Perceptual layer is the direct contact layer of objects and objects, like the battlefield of war, such as our bus, IC card and receiver is in the perceptual layer, is the matter and things between each other perc