冲击波测试中无线同步上电系统的设计

Design of Wireless Synchronization Power-on System in Shock Wave Measurement

冲击波超压测试中,由于测试节点分布数量较多且相对分散,为了提高测试系统的上电灵活性和可靠性,同时为整个测试系统提供统一时基,以研究不同距离的冲击波到达时间,本文提出了一种基于Zigbee技术的节点无线同步上电技术。首先介绍了无线模块的硬件组成,并且对无线模块的性能进行了MATLAB仿真分析和实地测试。然后设计了节点间的Zigbee无线通信协议,最后通过1 kg TNT爆炸的实验结果证明了此无线同步上电系统具有良好的同步性和可靠性。

In order to improve the power-on flexibility and reliability of shock wave testing system and provide a unified time-base for the study of shockwave transmission arriving time of different distances,considering the numbers of testing nodes and their scattered distributions,this paper proposed a synchronous power-on system based on Zigbee wireless technology.First,the hardware structure of wireless module was presented and MATLAB simulation analysis and field testing have been done to show its performance.Then a specific Zigbee wireless communication protocol has been designed.Finally,1kg TNT explosion experiment＇s result was shown to prove the synchronicity and reliability of this synchronization power-on system.