基于射频技术的无线监测系统

由于监测点偏远、分散和监测对象多样性，使无线监测系统的应用受到局限。对此作者提出了一种基于射频通信技术的解决方案。首先叙述了系统设计思想和实现方法，给出了系统节点的硬件设计和通信协议。系统以超低功耗16位微控制器MSP430和单片射频收发芯片nRF905为核心，在通信协议中引入跳频机制，提高了系统抗干扰性。实验结果表明，该系统实时性好、稳定性高、功耗低、实用性强、灵活性高，可以实现多种信号的高精度监测，对于设计通信数据量小的无线监测系统具有良好的推广和应用价值。

The wireless monitoring system based on radio-frequency technique

According to the remoteness and dispersion of the monitoring points, the multiplicity of-the monitoring objects, the application of the wireless monitoring system was limited. A solution based on radio- frequency technique was proposed in this paper. The design idea and implementation method of thesystem were described, the hardware design of the system node and the communication protocol were given. The proposed system adopted the ultra - low power consumption MCU MSP430 and single radio - frequency transceiver chip nRF905 as the system core, meanwhile, frequency hopping mechanisms were introduced in communication protocol to improve the noise immunity of the system. The experimental results show that the system has characteristics such as good real - time performance, high stability, low power consumption, strong practicality and good flexibility. The system can realize high precision monitoring of multiple signal. It has good popularization value application value in design of wire_ less monitoring system which has small data quantity to communication.