Braille reading bracelet based on eddy current sensor array

Abstract

The invention discloses a Braille reading bracelet based on an eddy current sensor array, relates to the technical field of information, and solves the technical problems that an existing eddy current sensor with a single size is not large in detection range, and eddy current sensors with multiple sizes is low in information transmission efficiency and low in precision. According to the technical scheme, the bracelet is characterized in that the eddy current sensor array is arranged on the bracelet, the detection precision is improved when a detected target is detected within a large range, meanwhile, the information transmission efficiency and precision are improved when eddy current sensors with multiple sizes are used for detecting the target, the influence of the detection angle on the detection precision is reduced, and the bracelet is portable and wearable.

Description

technical field [0001] The present application relates to the field of information technology, in particular to a Braille reading bracelet based on an eddy current sensor array. Background technique [0002] Existing data show that there are currently more than 40 million blind people in the world, and my country has the largest number of blind people in the world, with more than 8 million people, accounting for 20% of the world's blind population. The scale of smart vision aids for the blind in my country alone will be close to 8 billion by 2025. As the main tool for blind people to perceive the world and communicate with the outside world, Braille is widely used in public places such as buildings, vehicles, and streets, and has irreplaceable value. Among them, the braille reading of the internationally accepted Braille mainly relies on the human sense of touch. With the innovation and iteration of detection technology, numerous Braille reading detection devices have been...

AI Technical Summary

Problems solved by technology

However, the application of eddy current sensors also has the following problems: (1) The eddy current sensor of a single size can only guarantee the detection accuracy within a certain range from the measured target. When it exceeds its detection range, the measured target cannot be correctly identified. The eddy current sensor has the problem of low information transmission efficiency and accuracy; (2) the use of eddy current sensor to detect Braille also has the influence of detection angle on the detection accuracy, and the detection results of the same target at different angles have different signals. The same; (3) the manufacturing and installation process of current eddy current sensors are difficult to achieve the miniature, portable and wearable requirements required for braille recognition; (4) due to the non-contact braille recognition, it is difficult for users to subjectively The operation of "new line" leads to incomplete and inaccurate detection; (5) Due to the non-contact detection, it is difficult for the detection device to judge the subjective will of the user, whether it is necessary to identify the detection target

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