基于ARM9的中波发射机运行状态实时监测系统  

Real-time Monitoring System of Medium Wave Transmitter Operating State Based on ARM9

作　　者：卢俊杰 LU Junjie(Zhejiang Medium-wave Launch Management Center Lishui Broadcasting Station,Lishui 323000,China)

机构地区：[1]浙江省中波发射管理中心丽水广播转播台,浙江丽水323000

出　　处：《中国有线电视》2023年第1期49-52,共4页China Digital Cable TV

摘　　要：中波发射机运行状态实时监测系统通过对信号运行功率的波动进行检测,实现对故障的判断,由于缺乏对电压驻波比的监测,导致故障识别准确率较低。对此,提出基于ARM9的中波发射机运行状态实时监测系统。硬件方面构建信号采集单元,对ARM9为控制机参数进行调整。软件方面使用带通滤波器对电路中的电流采样值进行捕获,实现电压驻波比的监测,并对异常数据进行检测。在实验中,对构建出的监测系统进行监测效果的验证,经实验分析证明,利用提出的监测系统对中波发射器的运行状态进行监测时,故障识别准确率较高,具备较为理想的监测效果。The real-time monitoring system for the operating status of the medium-wave transmitter realizes the judgment of the fault by detecting the fluctuation of the signal operating power. Due to the lack of monitoring of the voltage standing wave ratio, the accuracy of fault identification is low. In this regard, a real-time monitoring system for the operating status of the medium wave transmitter based on ARM9 is proposed. In terms of hardware, a signal acquisition unit is constructed to adjust the parameters of the ARM9 as the control machine. In terms of software, a band-pass filter is used to capture the current sampling value in the circuit to monitor the voltage standing wave ratio and detect abnormal data. In the experiment, the monitoring effect of the built monitoring system is verified. The experimental analysis proves that when the proposed monitoring system is used to monitor the operation status of the medium wave transmitter, the fault identification accuracy is high, and it has a relatively ideal monitoring quality.

关 键 词：ARM9 中波发射机 监测系统 电压驻波比 

分 类 号：TN931.3[电子电信—信号与信息处理]