A kind of photoelectricity writing system
Technical field
The utility model relates to photoelectricity and writes technical field, relates in particular to a kind of photoelectricity writing system.
Background technology
Development along with computer technology, the interactive whiteboard system becomes with fastest developing speed in education and meeting multimedia system at present, the man-machine interactive system that high using value is arranged, but its fund input is larger, the repacking workload is also larger, therefore, develop and be convenient for carrying and man-machine interactive system with low cost is the direction of WeiLai Technology development; And present man-machine interactive system exist bearing accuracy poor, only support the problem of single-point input, therefore, the man-machine interactive system of developing high precision, multiple spot input also becomes the active demand of social development.
The utility model content
Fundamental purpose of the present utility model provides a kind of photoelectricity writing system of supporting the multiple spot input, aims to provide a kind of photoelectricity writing system of writing alternately in education and the meeting multimedia system that satisfies fully.
The utility model provides a kind of photoelectricity writing system, comprising:
Computing machine;
Projection module connects described computing machine, is used for the described computing machine image of projection.
The infraluminescence pen is used for the emission infrared signal;
Photographing module, connect described computing machine, comprise photelectric receiver, described photelectric receiver receive that described infraluminescence pen sends infrared signal and be passed to described computing machine, described computing machine is by the picture signal of described photographing module Real-time Collection projected image simultaneously.
Preferably, described photoelectricity writing system also comprises message processing module, and described message processing module connects described computing machine, processes for the picture signal of the infrared signal that receives described photelectric receiver transmission and described photographing module Real-time Collection and to it.
Preferably, described message processing module comprises the coordinate setting module, and described coordinate setting module receives the infrared signal of described photelectric receiver transmission and it is implemented tracing and positioning.
Preferably, described message processing module also comprises image processing module, described image processing module receives the picture signal of described photographing module Real-time Collection, determines the position coordinates of infraluminescence pen on projected image according to the infrared signal of carrying out the tracing and positioning processing simultaneously.
Preferably, described photoelectricity writing system also comprises writes module, and the described module of writing connects described message processing module, is used for the position coordinates of tracing and positioning infrared signal gained is connected to lines, writes.
Preferably, the emission of described infraluminescence pen the infrared light wavelength be 850 nanometers.
Preferably, described photographing module links to each other by USB interface with described computing machine.
Preferably, described projection module links to each other by the VGA video line with described computing machine.
Preferably, described projection module is highlighted micro projector.
Preferably, described photographing module is the high speed infrared video camera.
The utility model is by comprising computing machine, connect the projection module that described computing machine also is used for the described computing machine image of projection, the infraluminescence pen that is used for the emission infrared signal, connect described computing machine and comprise the photoelectricity writing system of the photographing module of photelectric receiver, to the infraluminescence pen send infrared signal follow the trail of and be passed to described computing machine, described computing machine is by the picture signal of described photographing module Real-time Collection projected image simultaneously, this moment, described photoelectricity writing system can be determined the position coordinates of infraluminescence pen on projected image according to the infrared signal of carrying out the tracing and positioning processing, and a plurality of position coordinateses are connected to lines, realize writing function.The utility model is supported the writing function of multiple spot input, and bearing accuracy is high, volume is little, be convenient for carrying and install.
Description of drawings
Fig. 1 is the utility model photoelectricity writing system one example structure synoptic diagram.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Further specify the technical solution of the utility model below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 1 is the structural representation of the utility model photoelectricity writing system one embodiment.The utility model provides a kind of photoelectricity writing system, and it comprises:
Computing machine 40;
Projection module 20, described projection module 20 links to each other by the VGA video line with described computing machine 40, is used for described computing machine 40 images of projection.
Infraluminescence pen 10 is used for the emission infrared signal; 10 emissions of described infraluminescence pen the infrared light wavelength be 850 nanometers.
Photographing module 30, described photographing module 30 and described computing machine 40 link to each other by USB interface, comprise the photelectric receiver (not shown), described photelectric receiver (not shown) receive that described infraluminescence pen 10 sends infrared signal and be passed to described computing machine 40, described computing machine 40 is by the picture signal of described photographing module 30 Real-time Collection projected images simultaneously.
Described photoelectricity writing system also comprises message processing module 50, described message processing module 50 connects described computing machine 40, processes for the picture signal of the infrared signal that receives the transmission of described photelectric receiver (not shown) and described photographing module 30 Real-time Collections and to it.
Described message processing module 50 comprises coordinate setting module 501, and described coordinate setting module 501 receives the infrared signal of described photelectric receiver (not shown) transmission and it is implemented tracing and positioning.
Described message processing module 50 also comprises image processing module 502, described image processing module 502 receives the picture signal of described photographing module 30 Real-time Collections, determines the position coordinates of infraluminescence pen 10 on projected image according to the infrared signal of carrying out the tracing and positioning processing simultaneously.
Described photoelectricity writing system also comprises writes module 60, and the described module 60 of writing connects described message processing module 50, is used for the position coordinates of tracing and positioning infrared signal gained is connected to lines, realizes writing function.
Further, described projection module 20 is highlighted micro projector, and described photographing module 20 is the high speed infrared video camera.
The projection module 20 of present embodiment photoelectricity writing system is shown as projected image with image in the computing machine 40 by the VGA video line, infraluminescence pen 10 is launched infrared signal at this moment, the photelectric receiver (not shown) receives the infrared signal of described infraluminescence pen 10 emissions, pass to described computing machine 40 by USB interface again with it and after being treated to corresponding digital signal, meanwhile, photographing module 30 take in real time projected images and with image signal transmission to described computing machine 40, at this moment, described computing machine 40 passes to the picture signal that receives the coordinate setting module 501 of signal processing module 50, the infrared signal that receives is passed to the image analysis module 502 of signal processing module 50, this moment, signal processing module 50 was determined the position of described infraluminescence pen 10 on projected image according to the infrared signal of described photelectric receiver (not shown) transmission and the picture signal of described photographing module 30 transmission, and record its position coordinates, simultaneously the infrared signal of described infraluminescence pen 10 is implemented the coordinate tracking process, and can it be modeled as mouse according to its location coordinate information and operate, along with described infraluminescence pen 10 in the movement on projected image, its location coordinate information also constantly is recorded, this moment, writing unit 60 can be connected to lines with infraluminescence pen 10 position coordinateses of tracing record, thereby realized writing function.The utility model is supported the writing function of multiple spot input, and bearing accuracy is high, volume is little, be convenient for carrying and install.
The above only is preferred embodiment of the present utility model; be not so limit its claim; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.