Tactical Communications Networks, Grassroots Data Fusion

In the next generation network (NGN) and Internet of Things both embody the Data Aggregation. Data has rapidly developed in recent years, and has highly advantages in addressing the tracking, detection, management and object recognition. Data Aggregation in many areas of research and application has just started, there are broad prospects for development. Against this background, this issue achieved to integrate the basic data of tactical communications network through embedded system design.There are three primary aggregation data:Bluetooth voice data, data of high-speed acquisition and data from the CAN network in the system, these data integration into IP-based network, the TCP/IP protocol of Ethernet was used in the designing. The article was mainly to achieve CAN-Bus data accessing, the other two parts and the whole were completed by the Department of the students.According to system requirements, embedded gateway system selected AT91RM200 as a microprocessor, and the software development platform build by Linux operating system. The system expands of two-channel CAN-Bus interface through the SPI of MCU, it formed two bottom CAN network by MCP2510; RS232 interface was extended though the MCU's internal USART1, it can communicate with PC; the network interface was designed through the Ethernet network control of MCU.In the article, A Frame CAN-Bus messages and TCP/IP data frame between the transformation; achieveing the CAN-Bus communication minimum nodes, constructing the gateway system, testing and analysis; achieved CAN-Bus communication network and the Ethernet convergence between heterogeneous networks.