Electronic Blackboard Eraser Erasing Method Research And System Implementation

With the rapid development of science and technology,high-tech products gradually occupy the leading position in people's lives.While high-tech products impact the social market,the field of education is also changing in the process of science and technology.The emergence of intelligent interactive electronic blackboard is becoming more and more popular in Colleges and universities because it integrates blackboard,writing pen,eraser and electronic teaching resources,and solves the storage problem of traditional blackboard blackboard.However,through market research,it is found that the current use of intelligent interactive electronic blackboards is not very optimistic,and user feedback is not very ideal.The main reason is that the use of intelligent interactive electronic products in the current market is more complex,and the writing and display capacity is small.The emergence of these problems leads to the low efficiency of the use of electronic blackboard,which leads to the waste of unnecessary teaching resources.The complexity of the use of intelligent interactive electronic blackboard mainly includes the complexity of writing and erasing and the complexity of the use of electronic teaching resources.In terms of eraser and writing pen,the software features of some electronic blackboards are relatively obvious.In the process of switching between eraser and writing pen,it also relies on the toolbar to switch.The size of eraser needs to be set in advance,and the position of eraser cannot be moved at will.This way of use will undoubtedly greatly reduce the user experience for users who are not familiar with the software.In this paper,the complexity of writing and erasing of existing electronic blackboards is studied and improved.(1)For the existing electronic blackboard screen,this paper uses one key switch to improve the switch process between writing pen and eraser.By detecting the touch state and position of the touch pen and using the track tracking technology to realize the moving function of the eraser,a neweraser is used to erase the geometric tool graphics and the combined graphics by using the background covering method,and a variety of erasing modes are provided for the user in erasing the blackboard blackboard writing,such as one key screen cleaning and the large scale of various erasers It is small and convenient for users to choose suitable plate wiping mode according to actual needs.(2)In the aspect of erasing the annotation of e-learning resources,this paper uses image grabbing technology,takes the E-Resource page as the background interface of blackboard screen,realizes the annotation of e-resources by calling the writing module,and erases the annotation content by using the method of background covering.The research and implementation of the system in this paper is to develop a kind of eraser that can meet the user's use habits,and try to achieve the use of the traditional blackboard to simulate the use of the ordinary blackboard,to achieve the use effect of the eraser that is ready to use and ready to use,so that the electronic blackboard writing and erasing are more convenient and fast,and more in line with the needs of the current education market.