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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 Pass
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 b
× 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
For an RFID system, the concept of Frequency Band refers Frequency Range of tag signals sent, received, and read by the reader through an antenna . In terms of application concept, the operating frequency of the RF tag, that is, the operating frequency of the RFID system, directly determines all aspects of the system application. In an RFID system, the system wor
In the actual application, when we get a UHF label, often want to know the capacity of its various storage area is how much, especially programmers do the program, it must know what the chip, some characteristics, in order to do a better service for the program, not blind, Otherwise, the development of the program may cause a variety of unforeseen problems. So how do we know what the label is in the hands of the brand, what chip? Here's how to tell us how to identify the UHF label chip model.UHF
The Passive Tag does not generate electricity itself, but uses the radio waves sent by the reader as the power of the IC circuit. This is divided into two types: the induction mode and the electric wave mode (Figure 3 ). Electromagnetic Induction: receives the time-varying magnetic field from the reader through a ring antenna to provide power to the IC circuit. This is the same principle as a turbine generator (Tony Note: How is a turbine generator working? ). Radio waves: In order to effect
This article mainly explains the HTML5 in a new label, HTML5 Ruby label, although not new, but also in the HTML5 new tags, html5 the definition of Ruby tags and specific usage examples are in this article, I hope you read carefully HTML5 the definition and usage of ruby tags
has been a long time no update blog, starting today to continue to walk on the road of learning, words do not say, first to dry:Directory1. HTML Definitions2. H Tag3. IMG Tag4. P Label5. A Label6. unordered list7. Sequence list8. Form Form9. Text Input textboxButton SubmitOne-click Radio buttonA. Check buttonDiv Tags-------------------------------------------the Golden dividing line------------------------------------------------Content1.HTML
Front-End Interface (1) --- basic HTML definition and common tags, front-end --- html I haven't updated my blog for a long time. From today on, I want to continue on the way to learning. Let's just talk about it. Let's do it first: Directory 1. HTML Definition 2. H tag 3. Img tag 4. P tag 5. A tag 6. unordered list 7. ordered list 8. Form 9. Text input box 10. Bu
: 1 linkrel="apple-touch-icon-precomposed" href="iphone_logo.png"/> Note: This link is to set the Web App placement on the Home screen icon file path (image four).Use: This path needs to be noted in the root directory of the document that is placed under the document root of the Web site but not the server. Image size can be set to 57*57 (px) or Retina can be set to 114*114 (px), IPad size is 72*72 (px) 1 linkrel="apple-touc
: 1 linkrel="apple-touch-icon-precomposed" href="iphone_logo.png"/> Note: This link is to set the Web App placement on the Home screen icon file path (image four).Use: This path needs to be noted in the root directory of the document that is placed under the document root of the Web site but not the server. Image size can be set to 57*57 (px) or Retina can be set to 114*114 (px), IPad size is 72*72 (px) 1 linkrel="apple-touc
="iphone_logo.png"/> Note: This link is to set the Web App placement on the Home screen icon file path (image four).Use: This path needs to be noted in the root directory of the document that is placed under the document root of the Web site but not the server. Image size can be set to 57*57 (px) or Retina can be set to 114*114 (px), IPad size is 72*72 (px) 1 linkrel="apple-touch-startup-image" href="logo_startup.png"/> Note: This lin
the Web App require additional two-terminal code to set, as follows: 1 linkrel="apple-touch-icon-precomposed" href="iphone_logo.png"/> Note: This link is to set the Web App placement on the Home screen icon file path (image four).Use: This path needs to be noted in the root directory of the document that is placed under the document root of the Web site but not the server. Image size can be set to 57*57 (px) or Retina can be set to 114*114 (px), IPad
="iphone_logo.png"/> Note: This link is to set the Web App placement on the Home screen icon file path (image four).Use: This path needs to be noted in the root directory of the document that is placed under the document root of the Web site but not the server. Image size can be set to 57*57 (px) or Retina can be set to 114*114 (px), IPad size is 72*72 (px) 1 linkrel="apple-touch-startup-image" href="logo_startup.png"/> Note: This lin
. Image size can be set to 57*57 (px) or Retina can be set to 114*114 (px), IPad size is 72*72 (px) link rel="apple-touch-startup-image" href="logo_startup.png" />Note: This link is the interface to set the startup time.Use: Place the same path as above. The official requirements of the start interface must be 320*640 (px), originally thought that the Retina screen can support double, but not support, the picture does not appear. If the two meta Web App is not well und
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