Research On Portable Sensing System Based On Android Platform

With the rapid development of information technology,the information in People's daily life increased exponentially.How to obtain and identify various information quickly and truly had a great realistic significance on perceiving the complicated and changeable world and mastering the right for information sharing for people.In order to give people a new solution to perceive outside information instantly and conveniently,this paper designed and realized a kind of portable sensing system based on Android platform,which is using a plug and play sensor node as a obtaining information Front-End,using USB communication technology as the medium of information transmission and using Android mobile as an information processing and display terminal.This paper mainly researched around the Plug and play feature and information retrieval model of sensor node,and human-computer interaction and the developing of information service function based on android platform.The main work of this paper is as follows.1.Designed the plug and play model of sensor node.Completed the USB interface program design of the sensor nodes and the developing of Android USB Host communication function.Tested the plug and play function of sensor nodes in two different mobile terminal platform.2.Completed the design of multi-sensor information acquisition model.Started from the hardware foundation introduction of information collection of sensor nodes.On this basis,aimed at the multi-sensor information retrieval problems of sensor nodes,this paper researched information acquisition framework and process of multi-sensor and multiplex information coding model.3.Researched multistage nested layout and the custom View designed method of human-computer interaction based on android platform.On this basis,completed the design of Human-computer interaction and interface based on multistage nested layout and Special interaction capabilities based on the custom View.4.Started from a system of information service model of a portable sensor based on the Android platform.Researched data storage methods,data visualization and network communication capabilities based on the Android platform respectively,Proposed a technology solution which is composed by a Data storage model based on SQLite database and SD card,using the custom canvas as a method to realize the data visualization and a TCP/IP network communication model based on Socket.Finally achieved the information service function of the portable terminal.