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A trajectory feature point extraction method for Internet of Things applications

A feature point extraction, Internet of Things technology, applied in the field of optimization, to achieve the effect of easy implementation, optimized bandwidth resources, and strong practicability

Active Publication Date: 2016-07-20
南京载玄信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each piece of data includes location latitude and longitude, positioning time, and possibly resolution address information and other auxiliary information. Taking 2m bandwidth as an example, the loading and display time will exceed 3s

Method used

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  • A trajectory feature point extraction method for Internet of Things applications
  • A trajectory feature point extraction method for Internet of Things applications
  • A trajectory feature point extraction method for Internet of Things applications

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The positioning and tracking system in the field of the Internet of Things is mainly composed of four parts, including communication networks (such as GPS, WIFI, GSM, RF, etc.), positioning terminals carried by positioning objects, data processing centers and client application software. The working principle of the positioning and tracking system in the field of the Internet of Things is: the positioning object carries the positioning module of the positioning terminal with it, and collects the position information every other time period (usually a relatively fixed frequency, ranging from seconds, minutes, and hours), through The communication module sends the location information to the data processing center, and the center stores and converts the collected information into comprehensible information and displays it on the user's client application software, such as displaying the trajectory of a period of time through icon marks on the electronic map. The communicat...

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PUM

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Abstract

The present invention provides a trajectory feature point extraction method for Internet of Things applications, that is, when a user requests a historical trajectory reappearance function for a certain period of time, the data processing platform obtains all trajectory points within the period, and sorts them according to time to form an original data set; Add the first and last two points and the key points to the result set; then remove all 0 displacement points in the unextracted state points of the original data set, and extract the secondary key points and non-key points from them and add them to the result set; add the points in the result set It is transmitted to the client and displayed to the user through the electronic map. The invention extracts the least amount of positioning data sufficient to describe the historical trajectory in the data processing center, and transmits it to the client application software, which can greatly reduce the amount of data transmission, increase the page loading speed, improve the response speed and improve user experience.

Description

technical field [0001] The present invention relates to an optimization method, in particular to an optimization method for reappearing historical trajectories in a location tracking system in the field of the Internet of Things. Background technique [0002] The positioning and tracking system in the field of the Internet of Things is mainly composed of four parts, including communication networks (such as GPS, WIFI, GSM, RF, etc.), positioning terminals carried by positioning objects, data processing centers and client application software. The working principle of the positioning and tracking system in the field of the Internet of Things is: the positioning object carries the positioning terminal with it, and the positioning module of the positioning terminal collects the position information every other time period (usually a relatively fixed frequency, ranging from seconds, minutes, or hours) , send the location information to the data processing center through the comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
Inventor 李娜杨飞樊建魏大利
Owner 南京载玄信息科技有限公司
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