Intelligent blackboard eraser

Abstract

The invention provides an intelligent blackboard eraser. The intelligent blackboard eraser comprises a body, a processing module and a plurality of scanning sensors, and is characterized in that the body comprises dust removal cloth and two groups of opposite side edges, the processing module is fixedly arranged in the body, the plurality of scanning sensors are fixedly arranged on one of the twogroup of opposite side edges of the body at intervals, when the blackboard eraser is located at a first position, the scanning sensors are used for scanning a surface range of a blackboard and judgingwhether a scanning signal reflected when a pen makes contact with a surface exists or not, if the scanning signal reflected when the pen makes contact with the surface exists, the scanning signal istransmitted to the processing module, the first position is the origin of coordinates of the surface range of the blackboard, and the processing module is used for obtaining a position where the pen makes contact with the surface according to the scanning signal and marking the position as a to-be-dedusted position. According to the intelligent blackboard eraser, the plurality of scanning sensorsscan and judge whether the scanning signal reflected when the pen makes contact with the surface of the blackboard exists or not, the position where the pen makes contact with the surface of the blackboard is marked as the to-be-dedusted position, a writing state of the blackboard can be automatically monitored, and timely dedusting is facilitated.

Description

technical field [0001] The invention relates to the field of teaching tools, in particular to an intelligent blackboard eraser. Background technique [0002] The blackboard eraser itself is passive in removing dust from the blackboard, that is, human supervision is required. If the blackboard is not dusted on time, it will affect classroom teaching and teaching staff’s teaching mood. In addition, there are human limitations in the supervision of blackboard dust removal. Waiting for the scene. [0003] In addition, the task of the classroom blackboard eraser is not only the classroom teaching of the teacher, but also the important cleaning work in the output of the classroom blackboard newspaper. The biggest pain point here is that the size of individual blackboards is different, and the output of the blackboard newspaper needs to be used in advance. However, the process of drawing with rulers and gauges cannot be completed alone. The workload is heavy and there are large er...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that the writing state of the blackboard cannot be automatically monitored in the prior art, which may easily cause the blackboard to fail to remove dust on time, and to provide an intelligent blackboard eraser that can automatically monitor the writing state of the blackboard so as to remove dust in time

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