超声波测距系统设计：基于单片机的创新实践【论文摘要】

Introduction Ultrasonic technology has been widely used in distance measurement due to its strong directionality, slow energy consumption, and long-distance propagation in the medium. Ultrasonic distance measurement systems are commonly used in applications such as car reversing, construction sites, industrial location monitoring, liquid level measurement, well depth measurement, and pipeline length measurement. Ultrasonic detection is known for its rapid, convenient, simple calculation, real-time control capabilities, and high measurement accuracy suitable for industrial applications. This paper presents a design of an ultrasonic distance measurement system based on the STC89C52 microcontroller. The hardware circuitry, software design ideas, and operating principles of the ultrasonic distance measurement system are elaborated. The hardware section utilizes the STC89C52 microcontroller as the main control unit, which includes transmission circuit, reception circuit, display circuit, and alarm circuit. The software section consists of main program, display sub-program, ultrasonic transmission sub-program, delay sub-program, calculation sub-program, and alarm program. This circuit features a simple structure, easy operation, high accuracy, and wide application possibilities. Overall, the ultrasonic distance measurement system based on the STC89C52 microcontroller offers a practical and efficient solution for distance measurement in various industrial and automotive applications. Keywords: ultrasonic; distance measurement system; microcontroller.