Research On Wsn Routing Protocol Based TinyOS 8051 WG

In recent years, wireless sensor network has emerged as a promising field of research due to its rapid deployment due to dynamic and other characteristics. In this paper, CC2430 chip made by TI were used as the core nodes of the network, and TinyOS which is a specific operating system for wireless sensor network is the platform of the routing protocol analysis and research. The TinyOS 8051wg of TinyOS Working Group 8051 MCS-51 System was selected for the operating system migration since the CC2430 chip using the 8051 MCU core. Data transmission is the core content of network applications and it depends on the network layer technology. Based on the above technology, this paper researched the wireless routing Protocol. The main contents and conclusions are as follows:(1)The port of TinyOS 8051wg. In the process of system port, after the installation of the standard version of the TinyOS system, deploy the TinyOS 8051wg system package in the standard TinyOS system. The environment variable settings file needs to be write in order to locate system and hardware platform, select the compiler's setting, determine the location for system directory of Makerules file and resource file; When work above is done, programming uses the system components to verify the reliability of system port.(2)The availability of hardware testing is not so complete because of the current system version is still Alpha. So in practice, the availability of components should be tested firstly, and then customize it according to demand. By modifying the low-level driver of the serial communication component, achieving different parameters setting for the serial port. This paper also analyses the system core components of data communication delivery mechanism, and implements a point-to-point data sending function by modifying the interface.(3)From the topology point of view, network based on the original system communication component is a planar network similar to bus type. If applies it in the sensor network directly, there will be two problems as follow: the data transmission node can not determine when to send data and nodes lack of resources effective management for data communications. In order to solve the issues above, this paper introduces and implements the classic clustering routing protocol APTEEN, based on the improved communications components and other related components. Each node determines the type and time of sending data according to threshold, and makes sure the data will be sent by setting a maximum transmission time interval. Experiments show that the protocol could run stably as scheduled requirements with good expansibility.