一种多传感器智能导盲装置的设计

为提高盲人出行方便度,设计了一种多传感器智能导盲装置,采用6对超声波传感器分上下两组探测障碍物,对多种数据源、多个传感器的采集信息进行融合处理,借助LM35温度传感器实现测量准确度的提高,并基于蓝牙技术实现了无线语音分段提示.实验结果表明该装置可以感测到的有效距离约为30～4000mm,实际值相对误差控制在2与％以内,满足盲人日常行为中的使用需求.

Design of a Multi-sensor Intelligent Guiding Device

In order to improve the convenience degree for the blind,a multi-sensor intelligent guiding device is designed in this paper.Six pairs of ultrasonic sensors are divided into the upper and the lower groups to detect obstacles.Multi-source infor- mation fusion and multi-sensor information collected are processed.Through the use of LM35 temperature sensor,measuring accuracy is improved.With fusion processing to detect multi-sensor data,wireless speech segment tips.based on Bluetooth technology are achieved.Experimental results show that the effective sensing distance of the device is about 30-4000ram and the relative error of the actual value is within 2.5%,which meets the demands of daily use for the blind.