| 戴金洲,牛 锋,沙 硕,邬 洋.机动车鸣笛抓拍系统校准技术研究[J].电子测量与仪器学报,2021,35(12):182-188 |
| 机动车鸣笛抓拍系统校准技术研究 |
| Study on the calibration technology for the vehicle honking detection system |
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| DOI： |
| 中文关键词: 计量学 传声器阵列 声源定位 机动车鸣笛抓拍 |
| 英文关键词:metrology microphone array sound localization vehicle honking detection system |
| 基金项目:国家市场监督管理总局科技计划（2020MK002）项目资助 |
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| 中文摘要: |
| 机动车鸣笛抓拍系统是近年来交通管理部门在智能交通领域的一项创新性的应用。 该系统中的声源定位单元通过传
声器阵列技术实时捕捉机动车违法鸣笛信号并实时定位违法鸣笛车辆,首先通过对声源定位的算法仿真,验证了传声器阵列技
术应用于机动车鸣笛抓拍系统的可行性,同时指出了鸣笛抓拍系统校准的重要性。 接着,提出了一种机动车鸣笛抓拍系统的校
准方法,即包括消声室检测和现场道路检测校准:在消声室检测校准环节,检测了传声器阵列对声源的定位精度;在现场道路检
测校准环节,设备安装在实际道路使用环境中,检测机动车鸣笛抓拍系统对鸣笛行为进行抓拍的有效率、捕获率和误报率。 最
后根据校准方法对机动车鸣笛抓拍系统进行消声室内定位和现场道路定位实验,结果表明该校准方法的有效性。 |
| 英文摘要: |
| The vehicle honking detection system is an innovative application of traffic management department in the field of intelligent
transportation in recent years. The sound source location unit can capture the illegal honking signal of vehicle and locate the vehicle
honking source by microphone array technology. In this paper, the feasibility of microphone array technology applied to the vehicle
honking detection system is verified by simulation of sound localization algorithm, where we clearly point out the importance of calibration
of vehicle honking detection system. Then, two calibration methods of vehicle honking detection system are studied, which include
anechoic chamber testing and field testing. The validation in anechoic chamber mainly measures the location accuracy of microphone
array to the sound source, while, the field testing is designed to measure the accuracy rate, the capture rate and the false alarm rate
under different working conditions. According to the validation method, an experiment has been done and the results show the validity of
this calibration technology in the application of vehicle honking detection system. |
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