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Container logistic tracking and positioning method based on tag sensor network

A positioning method and container technology, applied in the Internet of Things, WSN technology intersection, RFID field, can solve problems such as deviation and dimension redundancy

Active Publication Date: 2012-01-18
NANJING UNIV OF POSTS & TELECOMM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There is dimension redundancy in the traditional triangulation method, if the distance is directly calculated, it will cause a large deviation

Method used

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  • Container logistic tracking and positioning method based on tag sensor network
  • Container logistic tracking and positioning method based on tag sensor network
  • Container logistic tracking and positioning method based on tag sensor network

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Experimental program
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Embodiment Construction

[0081] The following will take the accompanying drawings as an example to further describe the technical solution and method flow of the present invention in detail through a specific example.

[0082] 1. Network initialization

[0083] Step 1) arrange and install the monitoring center, Wi-Fi-WSN gateway, all containers (with RFID tags and sensor nodes installed), AP, Wi-Fi-RFID reader, anchor node and positioning node, figure 2 It is a layout structure diagram of the RFSN instance after installation;

[0084] Step 2) At this point, all APs form a Wi-Fi wireless network, and all sensor nodes form a WSN network according to the Leach algorithm, such as image 3 as shown in the network topology; figure 2 Nodes d1 and d2 are positioning nodes, and nodes m1, m2 and m3 are anchor nodes, then the base station stores a record of positioning nodes and The function node ID table of the anchor node, in preparation for the collection of location information below;

[0085] step 3) ...

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Abstract

The traditional RFID (Radio Frequency Identification)-based logistic management method cannot satisfy the requirements on arranging and positioning of containers, interior environment monitoring of the containers, cargo safety and the like. Specific to the problems of low RFID data transmission amount and limited RFID communication capacity, the invention provides a container logistic tracking and positioning method based on a tag sensor network, and the method can be used for expanding an RFID communication range and simultaneously learning interior environment information and location information of the containers in real time; by connecting RFID as well as a WSM (Watchguard System Manager) and a Wi-Fi (Wireless Fidelity) network, a novel W-KNN (Weighted k-Nearest Neighbor) positioning algorithm based on neighbor weight attributes is provided to realize logistic tracking and positioning; meanwhile, a specific technical scheme and step flows are designed and are obviously different from the traditional container positioning and tracking method. The container logistic tracking and positioning method has beneficial effects in the aspects of communication range, data transmission, accurate positioning and the like.

Description

technical field [0001] The present invention is a kind of novel method of container logistics tracking and positioning in RFSN (Radio Frequency Sensor Network, label sensor network), belongs to Internet of things, RFID (Radio Frequency Identification, radio frequency identification), WSN (Wireless Sensor Network, wireless sensor network) Internet) technology intersection. Background technique [0002] Digital logistics management needs to realize the rapid identification and positioning of containers and the intelligent monitoring of container information. It can monitor the storage environment and location information of goods in real time, thereby saving operating costs and losses. [0003] At present, RFID technology is mainly used to enter the information of container goods, generally including the type, quantity, loading and unloading time of goods, as well as information such as loading location and unloading destination; for container placement on ships, container pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04W64/00H04W84/18
Inventor 黄海平戴庭王汝传梁彪孙力娟沙超赵强肖甫窦轶徐佳蒋凌云谭志刚郭剑
Owner NANJING UNIV OF POSTS & TELECOMM
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