Digital Wireless Positioning Electronic Whiteboard with Enhanced Reliability
A digital wireless, electronic whiteboard technology, applied in electrical digital data processing, rod connection, data processing input/output process, etc., can solve the problems of inaccuracy, receiver shaking positioning, etc., to achieve reliable positioning and improve processing efficiency Effect
Inactive Publication Date: 2019-01-01
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 with enhanced reliability, which avoids the lack of a firm structure point in the prior art, such that flat-screen TVs or ordinary whiteboards shake very badly during use, resulting in relative shaking of the receiver and thus Defects that make positioning inaccurate
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[0026] The content of the invention will be further explained below in conjunction with the drawings and embodiments:
[0027] Reference Figure 1-Figure 12 As shown, a digital wireless positioning electronic whiteboard with enhanced reliability includes a receiver 1. The receiver 1 is installed at the upper left corner of a flat-screen TV or a common whiteboard 2 at an angle of 45° to the horizontal. The receiver 1 is the same as the controller 3-phase connection, the controller 3 is connected to the PC 4, and the PC 4 is also connected to the flat-screen TV or the ordinary whiteboard 2;
[0028] 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 11A and an extension rod 12A. The extension rod 12A is the same as the horizontal rod 11A. One end is connected, the angle between the extension rod 12A and the horizontal rod 11A ranges from 95 degrees to 170 degrees...
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A digital wireless positioning electronic whiteboard for strengthening firmness comprises a receiver. The receiver is installed at an upper-left corner of a flat television or an ordinary whiteboard; an elastic band body sequentially comprises a first ring body, a spring, a connecting ring, a rubber band formed by a plurality of sequentially linked rubber blocks, and a second ring body; one end of the first ring body is connected to a positioning ring, and the other end of the first ring body is connected to the spring; and one end of the second ring body is connected to the rubber band, and the other end of the ring body is connected to a connecting piece. The defect that the flat television or ordinary whiteboard shake violently when in use due to a lack of form architecture points, which results in relative shakes of the receiver and therefore causes inaccurate positioning, in the prior art is avoided.
Description
Technical field [0001] The invention belongs to the technical field of electronic whiteboards, and specifically relates to a digital wireless positioning electronic whiteboard with enhanced reliability. Background technique [0002] The wireless positioning electronic whiteboard, its positioning method belongs to the TOA estimation method and adopts the combined positioning method of ultrasonic and infrared signals. The signal pen periodically emits signals. After the stroke sensor collects the ultrasonic and infrared signals, the corresponding algorithm is used 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 trajectory of the moving signal pen in real time to achieve the purpose of tracking the moving point. Its working principle is to realize positioning by detecting the propagation time of the ultrasonic signal and combining with ...
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IPC IPC(8): G06F3/042G06F3/043F16M13/02F16B7/04
CPCF16B7/0493F16M13/02G06F3/0421G06F3/043
Inventor 王啸东
Owner NANJING INST OF RAILWAY TECH