What is the normal working voltage of a Cell Phone Jammers

What is the normal working voltage of a  Cell Phone Jammers ? To address this problem, different application scenarios to facilitate the needs of operators, we propose a new YUV-based laser spot recognition algorithm, through the introduction of laser pointer, video capture card, and an ordinary camera, can be completed in an open man-machine interactive virtual embedded system.
Real-time camera shot through the target area of the screen, identify and track the target area of the laser spot on the track, the YUV image acquisition and operation results as the user's input into the computer terminal, complete the appropriate action. Compared with previous similar systems, the characteristics of this open system is that it's based on YUV format identification and tracking algorithm is simple and quick spot and fully guarantee the real-time requirements; while the open system based on embedded development considerations, transplant strong, can be applied to different areas of human-computer interaction.  Cell Phone Jammers  is a speech assistant.Keyword YUV format, laser spot identification and tracking, software debounce, background training, modular. 0 Introduction The traditional teaching demonstration and gaming applications more interactive environment through the keyboard, mouse or laser pointer, etc. to complete, or to control the distance of these pathways is limited, or the diversity of human-computer interaction function is limited. Because the first two will be limited to computer operators and other equipment in the vicinity; while the latter function is limited, although the market flip-style laser pointer with a radio frequency module, but fewer features, if the integration of more functions, the interface button to many complex, in order to solve this problem, this paper presents a YUV-based identification of the laser spot tracking algorithm to build an open modules, interactive environment makes machine operators by a simple laser pointer and move to complete the relevant projection command input to the computer terminal, to a keyboard and mouse, gamepad, etc. basically the same function.The  Cell Phone Jammers  turns pages with the help of radio frequency. YUV-based identification and tracking algorithm of the laser spot the basic principle is: The field of view of a reasonable position, including shooting with the camera stationary or moving targets, including the laser spot area, the incoming video image capture card, video capture card by output of the YUV format video stream analysis, identify and track the laser spot, the result of incoming computer terminal software operation, corresponding to the beam trajectory as user input, the mouse cursor terminal implementation in order to achieve synchronization with the laser spot moves to complete the corresponding function . For the laser spot identification, literature 1 gives a special demonstration in teaching human-computer interaction systems, the system software for the analysis of image format to RGB. Cell Phone Jammers  is the right hand of teachers. 2 presents a literature-based whiteboard laser spot tracking system, to achieve the same functionality, but the technical breakthrough that changes the screen material and screen rotating hexahedral corner of the application, works differently. Reference 3 presents a breakdown of the screen coordinates of the grid-based calibration method, based on a set of three points interpolation grid in which the screen coordinates, the correction of this error is simple and feasible, is a good attempt. Literature 4 using another form of signal that the human eye invisible infrared waves as identification signals.