ABSTRACT：As people 's living standards improved and the establishment of the yearning of the green city , a musical fountain with its unique charm and special features increasingly becomes an important product in the entertainment industry , the construction of the musical fountain is also increasing . In this paper, the current development status of the domestic musical fountain is that large - scale musical fountain technology is mature , and small musical fountain is still in its initial state .Letting small musical fountain Innovatively into the family, to design a cost-effective single chip control system to the miniaturization of large-scale musical fountain , moving the large outdoor musical fountain to the indoor has practical significance and forward-looking . The system switched to the SCM process and control circuit to adjust the submersible pump speed to low cost .
Based on the current development status of the musical fountain , the design introduced a AT89S52 MCU as the core , using the C language programming to achieve a small musical fountain control system . Devised a small-scale musical fountain control system can be simplely controled, low cost and easy to promote the useness. The system works: the strength of the music with a microcontroller according to the motor speed control, in order to control the level of the fountain water column . Input music directly proportional to the voltage signal , the output is the amount of control of pump speed . The main program block diagram and procedures were given . So that the water fountain posture change with the rhythm of the music .
Key words: Musical Fountain; Microcontroller; SCM