Digital wireless positioning electronic whiteboard
An electronic whiteboard and digital wireless technology, which is applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problems of receiver shaking positioning, severe, inaccurate, etc., to improve processing efficiency and reliable positioning. Effect
Inactive Publication Date: 2018-12-21
NANJING INST OF RAILWAY TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a digital wireless positioning electronic whiteboard, which avoids that there is no firm structure point in the prior art, so that the flat TV or ordinary whiteboard will shake very badly when using it, which will cause the relative shaking of the receiver and make the positioning inaccurate Defects
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[0017] Below in conjunction with accompanying drawing and embodiment, content of the invention will be further described:
[0018] refer to Figure 1-Figure 6 As shown, the digital wireless positioning electronic whiteboard includes a receiver 1, the receiver 1 is installed at the upper left corner of a flat-panel TV or an ordinary whiteboard 2 at an angle of 45° to the horizontal direction, and the receiver 1 is connected with a controller 3, The controller 3 is connected with the PC 4, and the PC 4 is also connected with the flat panel TV or the common whiteboard 2;
[0019] It also includes a horizontal rod device A1, a cover plate 4A and a plurality of vertical connecting rod devices 2A. The horizontal rod device A1 includes a horizontal rod A11 and an extension rod A12, and the extension rod A12 is the same as that of the horizontal rod A11. One end is connected, the angle range between the extension rod A12 and the horizontal rod A11 is 95 degrees to 170 degrees, and th...
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The invention provides a digital wireless positioning electronic whiteboard. The digital wireless positioning electronic whiteboard comprises a receiver, wherein the receiver is mounted on a flat-panel TV by forming an angle of 45 degrees in the horizontal direction or is mounted at the left upper corner of a common whiteboard, the receiver is connected with a controller, the controller is connected with a personal computer (PC), and the PC is also connected with the flat-panel TV or the command whiteboard; the digital wireless positioning electronic whiteboard further comprises a horizontal rod device, a covering plate and multiple vertical connecting rod devices, wherein the horizontal rod device comprises a horizontal rod and an extension rod, and the extension rod is connected with one end of the horizontal rod. According to the digital wireless positioning electronic whiteboard, a defect of positioning inaccuracy caused by relative shaking of the receiver because the flat-panel TV or the common whiteboard shakes seriously in use due to the fact that no firm framework point exists in the prior art is avoided.
Description
technical field [0001] The invention belongs to the technical field of electronic whiteboards, and in particular relates to a digital wireless positioning electronic whiteboard. Background technique [0002] The wireless positioning electronic whiteboard, its positioning method belongs to the TOA estimation method and adopts the joint positioning method of ultrasonic and infrared signals. The signal pen emits signals periodically. After the stroke sensor collects the ultrasonic and infrared signals, it uses the corresponding algorithm to extract the time delay, so as to determine the position of the signal pen on the whiteboard. Since the system determines the position of the signal pen in real time, the system can capture the track of the moving signal pen in real time, so as to achieve the purpose of tracking the moving point. Its working principle is to realize the positioning by detecting the propagation time of the ultrasonic signal and combining the triangular positio...
Claims
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IPC IPC(8): G06F3/042
CPCG06F3/042
Inventor 王啸东
Owner NANJING INST OF RAILWAY TECH