无线传感器网络节点的模块化设计

Modularization design of wireless senor networks' node

为了使传感器节点能并行采样且实时存储不同类型的突发信号,提出了一种基于SPI总线的模块化节点设计方案,由控制模块进行节点管理、功能模块完成测试任务、无线模块负责收发数据,各类模块之间通过SPI总线进行数据交换。测试过程中,各个节点的功能模块将测试数据存入存储器中,测试完成后再以分组交换的方式将数据传回控制基站。实验证明:节点工作稳定,功能拓展方便,能圆满地完成测试任务。

In order to make sensor node acquire parallel data and store different out-bursting signals, a design scheme based on SPI bus is put forward. The scheme is that the control module manages nodes, function module accomplishes test work ,wireless module is responsible for receiving data which is changed through SPI bus among all kinds of modules. In the process of test, every function module puts test data into memory, and the data is sent back to the basement by packet switching after test. The practice proves that the node works stably ,is convenient to develop its function and able to achieve test work.