Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic frame timeslot Aloha algorithm based on collision timeslot independent identification

A dynamic frame time slot and time slot technology, which is applied in computing, computer components, and collaborative devices, etc., can solve the problems of inability to handle high-complexity algorithms and low processing capacity, and achieve improved recognition efficiency and stability. The effect of improving the recognition efficiency

Active Publication Date: 2015-12-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that most Aloha-type algorithm readers in the prior art are only equipped with processors with low process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic frame timeslot Aloha algorithm based on collision timeslot independent identification
  • Dynamic frame timeslot Aloha algorithm based on collision timeslot independent identification
  • Dynamic frame timeslot Aloha algorithm based on collision timeslot independent identification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0069] The design of the present invention is based on the EPCglobalC1Gen2 standard of UHF.

[0070] The invention provides a dynamic frame time slot Aloha algorithm based on independent identification of collision time slots, which is divided into two stages: optimal frame length detection and independent identification of collision time slots.

[0071] In the optimal frame length detection stage, set a detection section for each frame for observation, and then make full use of the statistics of the detection section, successful time slot, collision time slot and idle time slot to judge whether the current frame is optimal, if not If it is optimal, readjust the frame length and set a new detection segment until the optimal frame length is detected; if it is optimal, continue to read the entire frame, then count the index number of each collision time sl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a dynamic frame timeslot Aloha algorithm based on collision timeslot independent identification. The Aloha algorithm is used for detecting the optimum frame length and setting an independent frame for each collision timeslot. According to the Aloha algorithm, whether the current frame is optimum is judged by utilizing detection section, thereby reducing the influence on the performance due to inappropriate frame length setting, and improving system identification efficiency and stability; the independent frame is set for each collision timeslot to carry out identification, thereby improving overall system performance; and the frame length setting and judgment are based on the simplest arithmetical operation, thereby preventing higher requirement for and dependence on a hardware platform of complex mathematical operation in a conventional anti-collision algorithm, greatly reducing system complexity, and improving realizability of the algorithm.

Description

technical field [0001] The invention belongs to the technical field of radio frequency identification multi-tag identification, and in particular relates to the design of a dynamic frame time slot Aloha algorithm based on independent identification of collision time slots. Background technique [0002] Ultra-high frequency (UHF) radio frequency identification (RFID) can provide more convenient and faster non-contact identification for target objects, so instead of barcodes is widely used in the automatic identification of objects, the main industrial applications include: inventory management, supply chain Management, item traceability, etc. A typical RFID system consists of a reader, multiple tags and middleware. Multi-tag rapid identification is an urgent need for current RFID systems, especially in tag-intensive RFID environments. In order to solve the problem of fast label identification, researchers have proposed a large number of anti-collision algorithms, which can ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06K17/00
Inventor 苏健文光俊李建
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA