| Under the background of Internet of Things(IoE),as one of the key supporting technologies of the Internet of Things,wireless sensor networks will undoubtedly usher in a new round of development opportunities,and will develop towards networking,intellectualization and industrialization.However,at present,single-function sensing data has not kept up with the needs of the times,and making full use of multi-sensor technology to apply multi-source sensing data in comprehensive and multi-functional fields,and using mobile platforms such as smart phones to expand in-depth business,so as to achieve the full integration of multi-source sensing network and mobile Internet,is the current research focus and wireless sensing.The future development goal of the network.Aiming at the problems of hardware platform inconsistency,single node function and single function application in wireless sensor networks,this thesis designs and builds a multi-source information sensing system based on ZigBee network and Internet-related technology from the practical application of the Internet of Things.The system utilizes multi-sensor data acquisition technology.It is a multi-sensor data acquisition system that can obtain diverse sensing data from multiple sources with one node,and fuse the data into the Internet for multi-functional application.The system not only embodies the perceptual world with rich perception functions,but also extends the application of perceptual data to the mobile Internet.Through the application of APP on smart phone terminals,more potential users have been discovered,and the problem of low commercial value of wireless sensor networks has been solved,which is of great significance to the development of wireless sensor networks.The main contents are as follows:(1)A universal node hardware platform is designed and completed,which integrates multi-functional sensing technologies such as environment,signs,motion,geographical location,and so on.It realizes the use of sensor nodes,routing nodes and gateways,and can complete networking functions.The hardware platform of the node has the characteristics of multi-mode,multi-function and miniaturization.(2)Designed and completed a PC background software with the functions of management,scheduling and monitoring.Through the PC background,the perceptual data from the perceptual world can be accessed to the network in time and stored safely,so as to facilitate deeper data mining.(3)An Android APP application platform is designed and completed,which integrates environment,physical signs,movement and geographical location.Through this APP platform,the multi-function and image display of perceived data can be carried out,and the data can be monitored anytime and anywhere by users,which improves the convenience of data viewing.Finally,this thesis completes a detailed function and performance test of the multisource information sensing system.The test results show that the system is a comprehensive wireless sensor network application system which meets the needs of users and has complete functions.It is also a useful exploration for the future development of wireless sensor networks to the mobile Internet. |
