The invention discloses a voice control safety auxiliary system and method based on an unmanned vehicle. The method comprises the steps of establishing a sound characteristic voice library, allowing asafety officer inputs a login keyword through voice before a vehicle is started, and starting a sub-voice library corresponding to the safety officer in the sound characteristic voice library according to the login keyword; receiving a voice signal of the safety officer in a vehicle driving process, performing analog-to-digital conversion and input processing on the voice signal, comparing the processed signal with a characteristic value in a sub-voice library, and judging whether the voice signal is valid or not according to a comparison result, and if the voice signal is valid, controllingthe vehicle to brake, wherein the voice signal comprises a keyword, audio and a volume. According to the invention, the sender of the sound source can be accurately and quickly judged, and the probability of mistakenly identifying the sound source is reduced; and meanwhile, by identifying the tone, the frequency, the volume and the fixed keyword, an execution response is accurately made.
本发明公开了一种基于无人驾驶车的声控安全辅助系统及方法。过程为:建立声音特性语音库,车辆启动前安全员通过语音输入登录关键词,根据登录关键词开启声音特性语音库中与所述安全员对应的子语音库;车辆行驶过程中接收安全员的语音信号,所述语音信号包括关键词、音频和音量,对语音信号进行模数转换及录入处理,将处理后的信号与子语音库内的特征值进行比较,根据比较结果判断所述语音信号是否有效,若语音信号有效则控制车辆刹车。本发明可准确、快速的判定声源的发出者,减少误识别声源的概率;同时通过对音色、频率和音量、固定关键字的识别,准确做出执行响应。
Voice control safety auxiliary system and method based on unmanned vehicle
一种基于无人驾驶车的声控安全辅助系统及方法
2021-02-19
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10L Analyse oder Synthese von Sprache , SPEECH ANALYSIS OR SYNTHESIS |
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