What is the principle of Caterpillar point reading pen?

2. The working principle of the point reading pen.

3. What is the principle of the point reading pen, and why can I read it a little?

4. Point-reading pen diagram.

1. The point reading pen can identify the invisible QR code on ordinary paper, so as to mobilize the program in the pen to play the corresponding audio file, thus realizing point reading.

2. Small point readers, all of which have photoelectric recognizer (OID), can sense the digital information on the picture, touch the book with a pen, read the QR code information, and send it to the point reader, which will be processed by the CPU.

3. After scanning the image, input it into the picture library in the pen for comparison, convert the graphic English into digital information, and then compare the combined words with the word library in the pen to get the corresponding pronunciation.

4. The fundamental difference between various point-reading pens lies in the decoding chip, and the number of codes it contains directly determines whether a large number of books can be clicked without garbled codes.

5. Selection of point reading pen: Choose a wireless pen with low electromagnetic radiation and environmentally friendly materials. The point reading pen should be equipped with advanced and fashionable wireless pen, which has the advantages of health, accuracy, convenience and practicality.

6. Choose a reading pen with rich content, health and comprehensive teaching materials.

7. Choose a durable point reading pen with guaranteed product quality.

8. Pronunciation directly affects children's learning.

9. Choose a point reading pen with pure pronunciation when purchasing.