Auxiliary sound source device and system for intelligent blackboard dictation based on sensing detection

Abstract

The invention discloses an auxiliary sound source device and system for intelligent blackboard dictation and blackboard writing based on sensing detection, and relates to the technical field of intelligent classrooms. A driving power device is installed at the lower side end of an edge position installation base body, a transmission assembly connected with the output end of the driving power device is arranged on the edge position installation base body, and a single-side sound source loudspeaker box device is installed on the transmission assembly on the edge position installation base body;a first edge position sensing assembly which is longitudinally arranged is mounted on the edge position mounting base body; a plurality of photoelectric sensors for sensing and monitoring horizontal signals are arranged in the first side position sensing assembly; a second upper sensing assembly which is transversely arranged is mounted on the upper mounting substrate; and a plurality of photoelectric sensors for sensing and monitoring longitudinal signals are arranged in the second upper sensing assembly. According to the invention, an aligned position type voice playing angle and a proper audio decibel are adopted to provide efficient voice transmission operation for students who stand on a platform to dictate and write on a blackboard.

Description

technical field [0001] The invention belongs to the technical field of smart classrooms, in particular to an auxiliary sound source device and system for smart blackboard dictation blackboard writing based on sensor detection. Background technique [0002] In modern smart classrooms, the use of smart blackboards is more common. Smart blackboards can not only play various teaching videos, but also be used as traditional blackboards for blackboard writing. [0003] When the teacher is dictating in class (such as dictation of English words), he usually asks a student to go to the podium to write the corresponding dictation on the blackboard, and when the teacher reads the content of the textbook with a textbook in the classroom, he may go to the back of the classroom Walk around the area and observe student dictation activity in the area at the back of the classroom. In this way, the students standing on the podium are far away from the teacher. If there are other students com...

AI Technical Summary

Problems solved by technology

However, in this way, when the sound power is too large, it will cause impact damage to the ears of students who are close to the speaker; if the sound power is too small, students at a distance sometimes still cannot hear what the teacher is saying.

Images