J4 ›› 2013, Vol. 26 ›› Issue (2): 88-91.doi: 10.3976/j.issn.1002-4026.2013.02.017

• Article • Previous Articles     Next Articles

Design of a Cortex-M4 based ultrasonic phased array detection system

 ZHAO Lian-Rui, YANG Ji-Min, LI Zhen-Jiang, LI Yu-Kun   

  1. College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • Received:2012-12-03 Online:2013-04-20 Published:2013-04-20

Abstract:

We design an obstacle detection system with ultrasonic phased array detection and  the microcontroller Cortex-M4 as a processor. Experiments show that the actual sound field strength of the focal area is greater than that of conventional ultrasonic technology and sound energy is more convergent. Its detection distance is from 0.3 to 5.5 m, and measurement accuracy is ±1 cm. The system is therefore effective and satisfactory.

Key words: detection, Cortex-M4, ultrasonic phased array

CLC Number: 

  • TP302.1