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Method for using robot to real-time and dynamically position and monitor indoor object based on RFID

A real-time dynamic positioning, RFID tag technology, applied in the field of communication, can solve the problems of high computational complexity, high cost, low real-time performance, etc., and achieve the effect of large transmission range, low equipment cost, and strong scalability

Active Publication Date: 2017-04-26
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the problems of poor real-time performance, high computational complexity, and high cost in the existing RFID indoor positioning monitoring method

Method used

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  • Method for using robot to real-time and dynamically position and monitor indoor object based on RFID
  • Method for using robot to real-time and dynamically position and monitor indoor object based on RFID
  • Method for using robot to real-time and dynamically position and monitor indoor object based on RFID

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The present invention provides an RFID-based robot real-time dynamic positioning and monitoring method for indoor targets, see figure 1 , the implementation process involves RFID positioning and indoor walking robots, based on the signal strength value of the RFID tag to realize the positioning and monitoring of the target body, specifically including the following steps:

[0035] 1) Perform initial deployment of RFID tags for indoor areas that need to be monitored. The specific steps include:

[0036] 1a) Classify the RFID tags, divide the RFID tags into categories with different attributes according to the different functions in dynamic positioning, and specifically divide them into two categories: "assisting positioning tags" and "needing positioning tags", among which "assisting positioning tags" It is used to assist the robot to locate itself, and the "Need to locate label" is carried on the person who needs to be located or attached to the object to be monitored f...

Embodiment 2

[0051] The RFID-based robot real-time dynamic positioning and monitoring method for indoor targets is the same as in Embodiment 1, and the RFID tag is a coded electronic tag. The present invention encodes the RFID tag in step 1b), see figure 2 and image 3 , including:

[0052] 1b.1) The first byte of the RFID tag stores the ID number of the tag, supporting 256 tags.

[0053] 1b.2) The second byte is the label category attribute code, which is coded according to different label categories. The content of this byte indicates that it is either "assist to locate the label" or "need to locate the label", such as: 1111 Denotes "Assist in Locating Labels", see figure 2 , 0000 means "Need to locate the label", see image 3 .

[0054] 1b.3) Starting from the third byte, corresponding to the tag type, the corresponding positioning information is stored respectively.

[0055] In order to mark the specific positioning coordinates, a planar rectangular coordinate system is establis...

Embodiment 3

[0060] The RFID-based robot is the same as embodiment 1-2 to the real-time dynamic positioning and monitoring method of the indoor target body, the location of the location of the "need to locate the label" described in step 7) and step 8) of the present invention is, where the current robot is located The exact coordinates are the center, and the distance R between the robot and the tag is the radius. The value of R here is not an exact value, but a data range.

[0061] In the overall design, the present invention adopts the positioning scheme of "need to locate the label", specifically in step 7) measure the signal strength of the "need to locate the label" by the RFID reader, and judge the distance of the label according to the signal strength gear The distance range of the robot, combined with the precise position coordinates of the robot itself, realizes the positioning of the location of the "need to locate the label"; the location result of the location of the "need to l...

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Abstract

The invention discloses a method for using a robot to real-time and dynamically position and monitor an indoor object based on RFID. According to the invention, RFID and a robot are utilized to address poor real-timeness and high cost of indoor positioning and monitoring. The method includes the following steps: arranging "positioning-assistant labels" on indoor fixed objects for positioning coordinates and a "positioning-required label" on an object for performing positioning and monitoring, mounting a RFID reader on a walking robot, the RFID reader and labels conducting information interaction; providing label ID, type and monitoring object information to a label encoding; sorting signals detected by the reader in a stronger-weaker signal intensity order in correspondence to a near-far distance order, the robot updating the coordinate thereof through the "positioning-assistant labels", detecting the "positioning-required label" by obtaining the distance between the robot and the object on the basis of the signal intensity classification, realizing positioning, storing the result to a database, determining safety, and if the result turns to be unsafe, sounding the alarm. According to the invention, the method requires simple computing, is fast to respond, has low cost, and is flexible to set. The method is applied to monitoring object safety in exhibition venues, warehouses, etc, and the safety of people in elder houses and kindergartens, etc.

Description

technical field [0001] The invention belongs to the field of communication technology, and mainly relates to RFID identification and positioning technology, in particular to an RFID-based robot real-time dynamic positioning monitoring method for indoor targets, which is used for monitoring people or objects in a small indoor range. Background technique [0002] The development of robots is changing with each passing day. This kind of machine device that performs tasks automatically can not only accept human commands, but also run pre-programmed programs, and can also act according to the principles specified by artificial intelligence technology, thereby assisting or replacing some human tasks. What people often come into contact with in daily life is often indoor robotics. It is closely related to people's lives, brings great help to people's lives, and has become an inseparable part of future life. [0003] In the process of indoor robot movement, there are three main pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S1/08
CPCG01S1/08
Inventor 李颖刘晓旭孙广越
Owner XIDIAN UNIV
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