The invention relates to a sound control system for preventing an accelerator from being stepped on mistakenly. Data and instructions of a voiceprint recognition module, a scream recognition technology module and an accelerator angular acceleration detection module are exchanged through Bluetooth communication; wherein the voiceprint recognition module uses a Mel frequency cepstrum coefficient (MFCC) and vector quantization to generate a speaker identification code book to verify a driver identity; the squeal recognition technology module uses the mean value and variance statistics of each frame of voice signal as input vectors of a support vector machine (SVM), and uses a polynomial kernel function for training so as to recognize squeal sound with high accuracy; the accelerator angular acceleration detection module is used for monitoring possible accelerator stepping by mistake in real time; based on the comprehensive judgment of the modules, the execution module uses a push-pull type electromagnetic spring to implement a control measure for preventing the accelerator from being stepped on by mistake. The system can effectively solve the problem that a driver steps on the accelerator by mistake in emergency, and the driving safety is improved.
本发明涉及一种声控防油门误踩系统。其通过蓝牙通信将包括声纹识别模块、尖叫识别技术模块、和油门角加速度检测模块的数据与指令进行交换;其中声纹识别模块使用Mel频率倒谱系数(MFCC)和矢量量化来生成说话人识别码书以验证驾驶员身份;尖叫识别技术模块利用每一帧语音信号的均值、方差统计量作为支持向量机(SVM)的输入向量,并使用多项式核函数进行训练,以高准确度识别尖叫声;油门角加速度检测模块用于实时监控可能的误踩油门行为;基于以上模块的综合判断,执行模块使用推拉式电磁弹簧实施防止误踩油门的控制措施。该系统能有效解决驾驶员在紧急情况下误踩油门的问题,提高行车安全。
Sound control accelerator mistaken stepping prevention system
一种声控防油门误踩系统
2023-10-17
Patent
Electronic Resource
Chinese
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