Self-compensation method and self-compensation system for ultra-wideband positioning through walls
An ultra-wideband, self-compensating technology, used in positioning, radio wave measurement systems, instruments, etc., can solve the problems of low accuracy, difficult to achieve accuracy in positioning and navigation, and achieve the effect of improving accuracy
Active Publication Date: 2021-10-29
郑州国测智能科技有限公司
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Problems solved by technology
[0008] The purpose of the present invention is to address the deficiencies of the prior art, thereby providing a self-compensation method and self-compensation system for ultra-broadband positioning through walls, which solves the problem of a certain number of positioning base stations in an environment where there are many walls in the area. It is difficult to realize the positioning and navigation of people and objects in the area, and the accuracy is not high.
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[0058] The technical solutions of the present invention will be described in further detail below through specific implementation methods.
[0059] Such as figure 1 As shown, the present invention provides a self-compensation method for ultra-broadband positioning through walls, and the method includes the following steps:
[0060] Step 1: Perform wall-through static compensation for locating the synchronous clock of the base station.
[0061] Step 1.1, establish the "air-wall-air" medium refraction model:
[0062]
[0063] Among them, T is the transmitting base station, P is the incident point, R is the refraction point, S is the receiving base station, TP is the distance from the transmitting base station to the incident point, RS is the distance from the refraction point to the receiving base station, c is the speed of light, τ is the time delay , ε r is the relative permittivity of the wall;
[0064] Step 1.2, calculating the cosine value of the incident angle and t...
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The present invention provides a self-compensation method and self-compensation system for ultra-broadband positioning through walls. The self-compensation method for ultra-wideband positioning through walls includes: step 1, performing static compensation through walls for positioning base station synchronization clocks; step 2, judging positioning Whether the ultra-wideband positioning signal transmitted by the positioning tag received by the base station passes through the wall, and when it is judged that the ultra-wideband positioning signal passes through the wall, dynamic compensation for the ultra-wideband positioning signal is performed; step 3, positioning coordinate solution; the ultra-wideband positioning through the wall The wall self-compensation system includes a map data construction unit, a positioning label, a positioning base station, an ultra-broadband self-compensation positioning unit and a terminal display unit. The ultra-broadband self-compensation positioning unit includes a primary wall penetration judgment unit, a secondary wall penetration judgment unit, Intelligent real-time compensation unit and positioning calculation unit; the present invention solves the problems of difficult realization and low accuracy of positioning and navigation of personnel and objects in the area when there are many walls in the area and the number of positioning base stations is fixed.
Description
technical field [0001] The invention relates to the technical field of wireless communication networks, in particular to a self-compensation method and a self-compensation system for ultra-broadband positioning through walls. Background technique [0002] With the continuous development of wireless communication network technology, precise location information services for people and objects have been widely used in many industries. However, in the complex environment of the region, the existing wireless positioning systems have the following shortcomings. More importantly, there is a lack of methods and systems for self-penetrating wall compensation: [0003] (1) The accuracy of positioning and navigation in the area is low. There are existing positioning technologies such as WiFi, Bluetooth, and zigbee, but the positioning accuracy is generally above 3 meters; [0004] (2) The anti-interference ability of positioning and navigation in the area is poor. The existing positi...
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IPC IPC(8): G01S5/06G01S5/02
CPCG01S5/0242G01S5/06
Inventor 卢建伟郧刚郭振强侯长生陈长宝李德仁
Owner 郑州国测智能科技有限公司