【摘要】 为了迎合人们对电子设备系统要求更加灵活和智能化的需求，本文设计了一款语音和射频控制的多功能智能小车。该小车融合了中文语音控制和射频遥控两种控制方式，可以前向避障警报以及温湿度数据播报。小车采用STM32F103系列单片机作为主控板连接控制其他功能模块；中文语音识别采用专用的芯片来完成语音指令采集、频域转换、声学特征提取、通过解码器得到识别结果以及和DHT11用单总线协议传输温湿度数据等一系列任务；射频遥控采用NRF24L01P方案来无线传输遥控指令；避障采用红外光避障方案并配合蜂鸣器实现防撞警报。测试表明，该小车达到了预定的功能，小车的环境感知系统可配合移动模块形成移动探测设备用于工程人员探测危险环境。更多还原

【Abstract】 In order to meet the demand for more flexible and intelligent electronic equipment system, this paper designs a multi-functional intelligent cart with voice and RF control. The trolley integrates two control modes,Chinese voice control and RF remote control, and can forward obstacle avoidance alarm as well as temperature and humidity data broadcast. The car adopts STM32F103 series microcontroller as the main control board to connect and control other functional modules; Chinese voice recognition adopts a special ASR chip to complete a series of tasks such as voice command acquisition, frequency domain conversion, acoustic feature extraction,getting recognition results through decoder and transmitting temperature and humidity data with single bus protocol with DHT11; RF remote control adopts NRF24L01P scheme to The RF remote control adopts the NRF24L01P scheme to transmit the remote control command wirelessly; obstacle avoidance adopts the infrared light obstacle avoidance scheme and cooperates with the buzzer to realize the anti-collision alarm. The test shows that the designed cart achieves the intended function, and the environmental sensing system of the cart can be used with the mobile module to form a mobile detection device for engineers to detect dangerous environments.更多还原