Introduction to the solution of intelligent electronic stylus for teaching

1. Technical introduction

The current teaching electronic pointer can realize laser pointer function, PPT page turning function and ink annotation function. Teachers or lecturers cannot write content on PPT remotely, nor can they convert the narration content into text information, save it and display it in real time.

2. Technical content

A teaching electronic smart stylus, including a pen head and a pen holder, a rechargeable battery is installed inside the pen body, and a charging interface is arranged on the upper part of the pen body; a laser emitting head is installed on the pen head, and a central processing module is included inside the pen body, The central processing module is respectively connected to the inertial sensor module, wireless module, laser emission module, voice recognition module, function control module and power supply module; the upper part of the penholder is provided with a function switching device, and the middle part of the penholder has a laser emission switch and handwriting/erasing remove the switch.

Further, the inertial sensing module includes an acceleration sensor and a gyroscope.

Further, the speech recognition module includes a microphone and a speech database.

Further, the function control module controls switching among the three modules of the laser emitting module, the inertial sensing module and the voice recognition module.

Further, the power supply module includes a battery power supply module and a charging module.

Further, the wireless module uses Wi-Fi, Bluetooth or Zigbee technology to transmit wireless protocol signals.

Beneficial effects: the present invention does not require the pen tip to be in contact with any object, only needs the pen tip to draw handwriting in the air, and the writing action and trajectory of the writer can be simulated and displayed on the display or projector. In this way, the teacher or the lecturer can write the lecture notes or draw key marks at a position far away from the computer, which is very convenient for teaching. In addition, the present invention can also recognize the voice of the teacher or the lecturer and convert it into electronic text for editing, saving and displaying, which is also very beneficial for students to listen to the lecture again.