A Fashion Intelligent Guiding Device Based on Multi-sensor

An intelligent guidance device based on ultrasonic sensor array is researched and developed according to the blind demand for facilitate walking. Six pairs of ultrasonic sensors are divided into the upper and the lower groups to detect obstacles. Multi-source information 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 30~4000mm and the relative error of the actual value is within 2.5%, which meets the demands of daily use for the blind.