Design And Implementation Of Embedded Large-scale Temperature Collecting System Based On Wireless Network

With the sensor technology continues to mature,the sensor's accuracy is increasing,and the price is declining.At the same time,the Internet technology is developing rapidly,and it serves our life and production.The combination of sensor technology and network technology forms the Internet of Things.The internet of things technology has become a trend in daily life,industrial and agricultural production,and has a certain development foundation and success.This article considering the current development of related technologies,such as sensors,embedded technology,introduces the research background and the practical significance of this system.Besides,this paper makes a brief introduction and analysis on the development of the core technology used in the system,both inland and abroad,and also makes a comparison of various solutions to individual technologies.This includes hardware technologies such as embedded technology and sensor technology,as well as some technologies for embedded software,embedded databases and B/S modes.This paper also analyze the performance of the system based on the technology,functions and requirements.This paper describes the design of the system from the functional point of view,including hardware design,software framework design,database design and business process design.Finally,according to the system design,functions are implemented and tested to ensure and confirm the system feasibility and practical value.Embedded large scale temperature collecting system,which is based on wireless network,combines the traditional wireless network and temperature sensor which is suitable for different needs of the scene.It has a collection of data collection,storage and management functions.Temperature sensor combined with some low cost embedded chip constitutes the collection subsystem,it has some functions to completedata collection tasks.The high-performance chip with embedded database software components constitutes data storage subsystem,which receives and stores data.It also identifies the equipment and completes data management tasks.This system is able to withstand large-scale collection demand,it mainly reflects in the distribution range and the number of collecting points.The system adopts wireless network as the data transmission method,so it breaks the traditional wiring restrictions and has a wide distribution range.Besides,the data receive and store subsystem uses high performance chip,so it is able to withstand up to 5000 collection points.The embedded large scale temperature collecting system uses relational database to store data.It provides standard interface and has good compatibility.The system can dock with other applications easily.The system uses the time-based one-time password to verify the legitimacy of the equipment,ensuring the security of the system effectively.The whole system uses the traditional wireless network,which makes it easier to deploy and change the topology of the system.For the user access,the system uses B/S mode to provide users with a friendly access and management interface,otherwise it facilitates the expansion of system functions and secondary development.Besides,the system is based on the authority of the classification of visitors,which ensure the function and data security in the application layer.