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RFID network planning method by adopting curling simulation

An RFID network and curling technology, which is applied in electromagnetic radiation induction, instruments, and induction record carriers, etc., can solve the problems of not being able to determine the number of readers adaptively and a large amount of calculation, and achieve the realization of layout, small amount of calculation, and optimization effect of position

Active Publication Date: 2016-09-21
XIDIAN UNIV
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problem that the genetic algorithm and the particle swarm algorithm have a large amount of calculation and cannot adaptively determine the number of readers in the prior art, the present invention provides a fast and effective simulation for adaptively determining the number of readers and its rationality RFID network planning method for curling

Method used

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  • RFID network planning method by adopting curling simulation
  • RFID network planning method by adopting curling simulation
  • RFID network planning method by adopting curling simulation

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The present invention is a fast and effective RFID network planning method for simulating curling, see figure 1 ,

[0043] The RFID network planning method for simulating curling includes the following steps:

[0044] Step 1: Build a reader model by simulating the curling movement, and design the movement operation and collision operation of the reader by simulating the curling movement. Curling can slide on the ice surface, and will be decelerated by friction during the sliding process. If there is a boundary around the curling field, the curling will be bounced back by the boundary when it slides to the boundary. Given a certain initial velocity, the curling Sliding in the curling stadium, the curling will stop in the curling stadium after a period of time, according to this movement phenomenon, the reader is regarded as the curling, and the RFID network work area is regarded as the curling stadium, the project to be covered The tags are scattered in the working are...

Embodiment 2

[0057] The RFID network planning method for simulating curling is the same as in embodiment 1, wherein in step 1, simulating curling is used to construct a reader model, specifically including:

[0058] Define a reader model R(x, y, v, θ, R), including the position coordinates (x, y,) of the reader, the velocity v of the reader, the direction θ of the velocity of the reader, and the power of the reader Radius R.

[0059] In the second step, a reader is constructed according to the reader model, including:

[0060] According to the reader model and using a random algorithm to construct a reader, randomly initialize (x, y) in the working area as the position coordinates of the reader, and randomly initialize v and θ in the speed range as the initial velocity and The initial speed direction, randomly initialize R within the power radius range, as the power radius of the reader, the initialized R (x, y, v, θ, R) represents a reader, complete the construction of the reader, and th...

Embodiment 3

[0062] The RFID network planning method for simulating curling sports is the same as that of Embodiment 1-2, wherein the mobile operation of the reader in the working area in step 3 includes the following steps:

[0063] 3.1 Scan the tags within the power radius of the current reader, and count the number of times these tags are covered. These tags will provide a part of the friction force to the reader. The friction force provided by each tag is related to the number of times the tag is covered. Read The friction force received by the device is the sum f of the friction forces provided by all tags in the power radius;

[0064] 3.2 Calculate the acceleration a of the reader from the friction force received by the reader. Under the action of this acceleration, it is stipulated that the friction force received by the reader remains unchanged within a moving time Δt. According to the kinematics formula, the current position of the reader ( x 0 ,y 0 ), the reader’s current veloc...

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Abstract

The invention discloses an RFID network planning method by adopting curling simulation. Firstly, a reader model is constructed by means of curling simulation, and reader movement and collision operations are designed; a reader is constructed; movement and collision operations of the reader in a work area are defined; the reader keeps on conducting movement and collision motion search in the work area, and a motion operation of the reader is completed until the number of times the reader has moved is greater than the preset maximum threshold number of movements; a new reader is constructed, the number of the readers is increased by one, and the coverage rate COV of marks by all the readers in the work area at the moment is calculated, until the coverage rate is greater than the preset minimum coverage threshold; RFID network optimization is completed, elimination operation is performed on the readers, and an RFID network optimization scheme is output. The RFID network planning method of the invention makes it possible to quickly and effectively obtain optimization results, combines with the reader eliminating operation, allows adaptive determination of the number of the readers, and is applicable to engineering RFID network optimization.

Description

technical field [0001] The invention belongs to the technical field of engineering optimization, and in particular relates to RFID network optimization, in particular to a fast and effective RFID network planning method for simulating curling sports, which is used for RFID network optimization. Background technique [0002] Radio Frequency Identification (RFID) technology is an important automatic identification technology. RFID technology has many applications. For example, in the supply chain problem, before the product is produced, add an RFID tag to each part. When the product has a problem, the problem part can be quickly and accurately tracked by reading the data in the RFID tag. Source and obtain information on problem parts. In inventory management, RFID tags are added to each item in the warehouse. The reader in the warehouse reads the data in the RFID tag and transmits it to the central computer. The central computer integrates the information sent by the reader t...

Claims

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Application Information

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IPC IPC(8): G06K7/10
CPCG06K7/10099
Inventor 刘静焦李成张涛
Owner XIDIAN UNIV
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