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Label anti-collision apparatus and method based on complete split

An anti-collision and complete splitting technology, which is applied in the direction of instruments, sensing record carriers, computing, etc., can solve problems such as waste of branches, achieve the effect of reducing collision time slots, reducing collision splitting time, and improving inventory efficiency

Active Publication Date: 2010-09-29
ZTE INTELLIGENT IOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, after the 0 branch inventory is completed, the subsequent branch will waste a lot of time performing a split process similar to the 0 branch

Method used

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  • Label anti-collision apparatus and method based on complete split
  • Label anti-collision apparatus and method based on complete split
  • Label anti-collision apparatus and method based on complete split

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Embodiment Construction

[0031] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] see image 3 , 4 and 5, the tag anti-collision device based on full division of the present invention, including a reader A and n tags B 1 , B 2 ,...B n , each label includes a counter B 01 and a random number generator B 02 , random number generator B 02 with counter B 01 connection, reader A is used to send commands to tag counter B 01 and receive counter B 01 The signal of n≥2 and n is a natural number; the device also includes a command number counter, which is a part of the reader or tag; the command number counter is a failed command counter B x , it is part of the tag, and the random number generator B of the tag 02 Connection, used to save the number of failed instructions received and determine whether to start the random number generator B 02 ; The instruction numb...

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PUM

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Abstract

The invention discloses a label anti-collision device and method based on entire splitting. The device comprises a reader and n labels, each of which comprises a counter and a random number generator, the random number generator is connected with the counter, the reader is used for sending instructions to the counter of the label and receiving the signals from the counter, wherein m is larger than or equal to 2, n belongs to natural numbers; the device also comprises a instruction number counter, the instruction number counter may a part of the reader or the label; when being part of the label, the instruction number counter is connected with the random number generator of the label. According to the method, the non-zero branch splits while the zero-branch splits; thus, the splitting timecan be reduced so that the reciprocal label collision times can be reduce, in order to enhance counting efficiency on multiple labels; via reasonable entire splitting degree control, the label can berapidly dispersed without increasing excessive idle timeslot, in order to reduce the collision timeslot.

Description

technical field [0001] The invention belongs to the field of radio frequency identification (RFID) in wireless communication, and in particular relates to a tag anti-collision device and method based on full splitting. Background technique [0002] In the actual application of RFID, in many cases, one reader corresponds to multiple electronic tags in the radio frequency field. When the reader counts multiple tags at the same time, there will be channel contention and collisions, and the tags cannot send the information to the reader correctly. Therefore, certain mechanisms need to be adopted to avoid collisions or reduce collisions. [0003] In the existing RFID international standard ISO 18000-6, Type A and Type C use the slotted ALOHA algorithm, while Type B uses the Binary Tree algorithm to solve the collision problem. Both slotted ALOHA and Binary Tree algorithms are based on time division multiple access. [0004] The slotted ALOHA algorithm divides time into several...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00
Inventor 焦红爱王立张立堃
Owner ZTE INTELLIGENT IOT TECH
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