System for implementing planar positioning in small space depending on two wave of different wave speed

A plane positioning, small space technology, applied in the direction of radio wave measurement system, positioning, measuring devices, etc., can solve the problems that the teacher cannot be accurately positioned, cannot be photographed, and the teacher's activity area is limited

Inactive Publication Date: 2008-03-26
上海卓越睿新信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The teacher's activity area is restricted and can only move on the podium, otherwise the camera cannot shoot the teacher;
[0005] 2. Teachers cannot be accurately positioned

Method used

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  • System for implementing planar positioning in small space depending on two wave of different wave speed
  • System for implementing planar positioning in small space depending on two wave of different wave speed
  • System for implementing planar positioning in small space depending on two wave of different wave speed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0058] condition:

[0059] There are 15 receivers arranged on the ceiling of a certain classroom, numbered 1 to 15 respectively. Each sink has its own coordinates. In the classroom there is a transmitter worn by the teacher.

[0060] Positioning process:

[0061] 1. The scan command is sent by the information collector to determine the number and number of transmitters and receivers in the system. The process is shown in Figure 2.

[0062] 2. The information collector sends a positioning command to determine the positioning of the transmitter on the teacher.

[0063] 3. The transmitter sends out ultrasonic signals and electromagnetic wave signals at the same time after receiving the instruction.

[0064] 4. The receiver receives two different waves, and uses the time difference of the received signals to calculate the actual distance from each receiver to the transmitter.

[0065] 5. The software randomly selects the numbers of 3 receivers and the distance parameters bet...

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PUM

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Abstract

This invention relates to an interspaces plane orientation system depend on two waves differ in speed. It includes: A non electrical connected signal collection module which can take-over and transmit signals to peripheral device of the system and can dispose signals; A signal incepting module which can recognize at least 4 kinds of signals and dispose relative information then transmit to the signal collector; A signal transmitting module which can transmits at least 3 signals and recognize the order from the signal collector; peripheral devices and relative computers are also included. Compared to the current technique, this invention is convenience, fast, accurate, and it also can orientate in all direction and three-dimension.

Description

technical field [0001] The utility model relates to a system for plane positioning, in particular to a system for completing plane positioning in a small space by means of two waves with different wave velocities. Background technique [0002] Current positioning systems include GPS, GPRS and other large positioning systems or laser precise positioning systems, and local positioning systems such as parking sensors. The accuracy of large-scale positioning systems is meter-level, such as GPS and GPRS, and the accuracy of small-scale precise positioning is micron-level or nano-level. However, local positioning systems are limited to directional positioning. [0003] In order to meet the needs of the automatic recording and broadcasting system, it realizes the real-time positioning function of the teacher on the plane in the classroom. In order to achieve the effect of the camera shooting the teacher in real time. Existing technology cannot realize this kind of function. Are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/00
Inventor 袭普照
Owner 上海卓越睿新信息技术有限公司
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