Door-access control method and device
An access control and access control technology, which is applied in the computer field, can solve the problems of low efficiency and long passing time of the access control system, and achieve the effect of reducing system investment and overcoming long passing time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0074] The specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention.
[0075] The RFID system for long-distance identification uses radio for communication. According to the working principle and performance of RFID tags, it is divided into active, passive, and semi-active or semi-passive systems in between. Active systems consist of the tag sending radio signals at regular intervals, which contain the tag's identification information. The passive system requires the energy sent by the reader to activate the built-in coil of the tag, and then the tag sends a radio signal to the reader to complete the identification. Both semi-active and semi-passive need to be activated by a reader. The difference is that the semi-active has an internal battery, which can p...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com