——"Is there a technology that can make rolls informational?."
--" certainly."
Optimization of answer sheet system based on dot-matrix digital pen
Handwritten test paper answer sheets have the advantages of long-term preservation of test paper information and convenient examination and evidence collection. It will still be in the mainstream for a long time in the future, but the test paper information cannot be preserved completely, and the process of examination and evidence collection is too cumbersome. And so on, this has become a problem that plagues many people.
Is there a pen that can maintain a good writing habit?
Is it possible to leave the original paper answer file?
Is it possible to make the information on the electronic roll and the paper roll exactly the same?
Is it possible to automatically grade some objective questions on the test paper?
Solution
The smart pen produced by Shenzhen Xuezhiyou Technology Co., Ltd. is similar to ordinary ballpoint pens and has almost the same feel. The tip of the digital pen is equipped with ordinary ink refills, which can leave handwriting on paper. When the pen tip is under the pressure generated by writing, the sensor installed in the digital pen can immediately receive the information from the pen tip, and accurately measure the pressure of the pen, and then start the built-in ultra-small camera. While shooting the dot matrix on the special paper at the speed of one second, it will also automatically record the position of the pen tip when it moves back and forth.
When a digital pen writes on digital paper, while leaving the usual ink, the micro-camera scans the small dots on the paper, and then the microprocessor converts the image of the dots into coordinates, so as to obtain the trajectory of the handwriting and store it in the internal memory. in memory. Connect the pen to the computer through the USB cable, and the coordinates of the handwriting can be transmitted to the computer, so that the original paper document and the electronic file of the handwriting can be obtained at the same time. It can also be passed directly to a computer or mobile phone via Bluetooth. The resolution is as high as 680DPI, and the continuous writing time is 7 to 10 hours. Because only the coordinates are stored, it is vector data, and the internal memory can store 1000 pages of handwriting in A4 format. In short, the user can freely write on the test paper (digital paper) like using an ordinary pen. The digital pen will collect the coordinates of the handwriting. After the computer receives the data file, it will redraw according to the coordinates of the handwriting. to the exact same handwriting.
A digital answer sheet with a dot matrix is generated by using a dot matrix pen and covering a layer of code points on the test paper. Of course, in order to realize the true restoration of the handwriting on the answer sheet on the computer and the automatic scoring of some objective questions, it is still necessary Develop the corresponding interface system. The answer sheet system plays the role of link between the answer sheet and the handwriting restoration and automatic scoring system. It needs to associate the digital pen, the digital answer sheet and the system itself, which can solve the problems of the test paper answer sheet. Informatization issues. And XUEZHIYOU Technology has a complete set of very complete and mature smart classroom solutions.