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为了解决转子参数遥测过程中大量数据实时传输的困难,提出了一种轻无线通信负荷的遥测技术方案,通过节点的实时异变检测、高速本地存储、过程数据抽取等环节,减少实时无线数据传输。针对节点资源的特点,异变检测采用改进的任意长度支集Harr小波变换,可靠性高、实时性好;数据存储利用A/D转换时间,提高采集和存储的总体速率;数据抽取采用自适应提升格式小波变换,兼顾数据量减少和信号特征保留。最后在自行设计的转子参数遥测系统中测试各个环节的功能,验证轻通信负荷下进行一般转子参数遥测的可行性。
In order to solve the difficulty of real-time transmission of large amounts of data in the process of rotor parameter telemetry, a telemetry technology scheme of light wireless communication load is proposed, which can reduce real-time wireless data transmission through node detection in real time, high-speed local storage and process data extraction . Aiming at the characteristics of node resources, the improved detection of arbitrary length Harr wavelet transform is adopted for the detection of the variation, which has high reliability and good real-time performance. The data storage uses the A / D conversion time to improve the overall acquisition and storage rate. The data extraction adopts adaptive Enhance the format of wavelet transform, taking into account the reduction of data volume and signal feature retention. Finally, the function of each link is tested in the self-designed rotor parameter telemetry system to verify the feasibility of general rotor parameters telemetry under light communication load.