一种基于FPGA和超声波的虚拟电子琴设计

Design of a virtual electronic piano based on FPGA and ultrasonic technique

介绍了一种以FPGA为核心控制部件、运用超声波测距技术在空间中形成虚拟琴键,使用分频方式实现7个音阶的虚拟电子琴。经过ModelSim仿真测试与实物调试,该电子琴能较好地实现音乐弹奏功能,结构简单,娱乐性强,具有一定的市场推广价值。

A virtual electronic piano which uses FPGA as the central control unit and uses ultrasonic ranging technology to form a virtual keyboard is introduced, and it has seven syllables generated by separating frequency of system clock. After being simulated in ModelSim and tested in physical commissioning, this electronic piano can work well. The electronic piano has a simple structure and is pretty entertaining, so it might has certain market value.