【摘要】 设计和制作了一种用于导盲系统的定位多个障碍物位置的超声波传感器阵列装置,它只需要一个探测周期,就可以实现对单目标和多目标的准确定位,比传统的多超声系统具有更高的探测效率。在超声波测距系统中,精确地确定电路系统的延时参数是提高测距精度的关键,本文应用最小二乘的数学方法可以精确地获得超声波信号在电路中的传播时间,有效地提高系统测距精度,在导盲定位系统中得到了成功的应用。利用几何学的定位方法融合被修正的距离数据,实现了对目标点的准确定位。通过数据关联来区分多个目标。更多还原

【Abstract】 A novel sonar array for guiding blind humans to locate multi-targets was presented. The sonar array can locate one or more different targets after one detecting cycle,which is more efficient than conventional sonar systems. As for ultrasonic orientation systems,one of the key important factors for improving the precision of space measurement is to define the delay parameter of the circuit system accurately. Method of least squares can be applied to get the accurate transmission time of ultrasonic signal in circuit system,which can improvethe precision of space measurement effectively and be applied in guidance system successfully. Using amendatory space data in geometrical orientation method can realize accurate orientation. And data associating arithmetic is used for distinguish multi-targets.更多还原