| Summary: | 碩士 === 國立虎尾科技大學 === 光電與材料科技研究所 === 101 === The common white cane for blind has its blind spots on the use. It could easily lead the blind people inadvertently to hit left floating obstructions and step into the ground pit. In order to improve this disadvantage, the present study adopted an “infrared guided blind system” by installing an infrared transmitter on mobility aids. Utilizing the principle that infrared radiation will reflect the object and by way of generating sound or vibration to detect the presence or absence of an obstacle. In consequence, it may inform the blind persons when they approached an obstacle and help them to take the necessary coping action, such as stopping the forward or detour, to avoid the possibility of dangerous situation.
The “infrared guided blind system” described in this study includes two sets of sensor components, located in the top and bottom of the action aids. The sensor components contain an infrared sensor and a transmitter for sensing the object above and below the action aids, and to produce a sensing signal feedback to the control circuit. Thus, making the warning device can do action and to achieve the blind guided effect. This paper described in detail the infrared detection component device and circuit design, the practical application test to obtain security detection distance range, and compared it with the pros and cons of various existing white cane.
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