Design of Intelligent Blind Guidance Instrument System
At present,the goods and services related to the life of the blind in the market are not perfect enough.The travel of the blind basically depends on the traditional guide stick,tactile paving and guide dog.However,under the complex and changeable road conditions,the incor-rect setting of tactile paving and the interference of guide dogs by external factors will inevita-bly cause greater safety hazards for the blind.The intelligent guide cane system proposed in this article is an intelligent guide cane based on IoT sensing technology and mobile communication technology.This intelligent guide cane can perceive the surrounding environment through in-telligent sensors,and can provide early warning in case of danger to ensure the safety of blind peoples travel.The intelligent guidance device system includes a microcontroller processor,in-frared sensors,tilt angle sensors,voice broadcast modules,GPS modules,and GSM modules.The system detects the distance between people and obstacles through infrared sensors,and a-chieves early warning of obstacles through voice broadcasting modules to ensure the personal safety of users;Detecting the tilt angle of the guide cane through a tilt angle sensor to determine whether the user has fallen or not;Real time acquisition of the users current location can be a-chieved through the GPS module;After the sensor data is uploaded to the processor,the system can determine whether an unexpected situation has occurred based on a pre-set threshold.When an un-expected situation is detected,the GSM module can promptly notify their family and friends of the danger and location information,in order to help them receive assistance in the shortest possible time.
万方数据
维普
