【摘要】 设计的实验装置由闭合激光束环线形成、测距传感器特性测试、应用实训和供电单元组成。激光器产生双束直角红色激光束,调整2个平面镜形成闭合警戒线;用红外、超声和激光测距传感器,输出模拟信号,改变测试间距,进行“距离—电压、距离的数码管和LCD屏显示”测试;压力、红外和超声距离传感器将采集信号传送至单片机进行处理、判读;反馈信号控制光耦和固态继电器,驱动舵机、步进电机、 LED灯和语音模块,执行“超红灯-落阻拦杆”、“手脱离方向盘-制动转轮”、“跨越1米间距线-亮LED闪烁红灯”以及语音警示等动作。设计的实验装置具有模块化、操作性强、教学内容丰富等特点,应用前景广阔。更多还原

【Abstract】 The experimental device is composed of closed laser beam ring formation, distance sensor characteristic test, application training and power supply unit. The laser produces a double right-angled red laser beam, and adjusts the 2 planar mirrors to form a closed cordon. Using infrared, ultrasonic and laser ranging sensors, the analog signal is output, the test spacing is changed, and the “distance-voltage, distance digital tube and LCD screen display” test is performed. Pressure, infrared and ultrasonic distance sensors transmit the acquisition signal to the microcontroller for processing and interpretation. The feedback signal controls the optocoupler and solid-state relay, drives the steering gear,stepper motor, LED light and voice module, and performs actions such as “running a red light-falling blocking bar”, “ hand off the steering wheel-brake wheel”, “ crossing the 1m spacing line-bright LED flashing red light” and voice warning. This experimental device has the characteristics of modularity, strong operability and rich teaching content, and has broad application prospects.更多还原