A method and main base station for locating tags in a wireless network
A technology of positioning tags and wireless networks, applied in the field of positioning tags, methods and main base stations, can solve the problems of wasteful operations, the identification of base stations cannot be stabilized, and failures, and achieve the effects of long life, reduced time, and short paths.
Active Publication Date: 2020-09-25
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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[0014] It can be seen that in the prior art, the ranging operation will not start until the tag receives the base station ID. If the tag receives the timeout, the positioning will fail this time, and all previous operations will be wasted.
Therefore, whether the base station identification can be stably and quickly transmitted to the tag is directly related to the capacity of the system and the power consumption of the tag. On this basis, how to ensure that the deployment cost and difficulty of the actual system installation are reduced has become an urgent problem to be solved. The problem
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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0058] An embodiment of the present invention provides a method for locating tags in a wireless network, such as figure 2 shown, including the following steps:
[0059] S101. The master base station acquires the identifiers of the slave base stations in the same target area as the master base station, and the number of the slave base stations is greater than or equal to 2;
[0060] S103, the main base station receives the broadcast message sent by the tag,
[00...
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An embodiment of the present invention provides a method for locating a tag in a wireless network, comprising the following steps: the master base station obtains the identifiers of the slave base stations in the same target area as the master base station, and the number of the slave base stations is greater than or equal to 2; The base station receives the broadcast message sent by the tag, and when it is determined that the tag is in the target area, sends the identifier of the master base station and the identifier of the slave base station to the tag; the master base station obtains the second measured distance results, and send the first distance measurement results and the second distance measurement results to the server. At the same time, the embodiment of the present invention also provides a main base station for locating tags in a wireless network. Compared with the existing UWB positioning solution, since the tag allocation and management are realized at the base station, the shortest possible path is used, and the Destabilizing delays and factors are minimized, making the positioning system more reliable.
Description
technical field [0001] The invention relates to the field of data communication, in particular to a method for locating labels in a wireless network and a main base station. Background technique [0002] Ultra Wideband (UWB for short) is a carrier-free communication technology that uses nanosecond to microsecond non-sine wave narrow pulses to transmit data. Due to the ultra-wideband signal itself has low power consumption, high security, and multipath resolution. With the characteristics of strong ability, UWB has been used for high-precision positioning at home and abroad in recent years. [0003] TOA (Time of Arrival) positioning algorithm is an algorithm that utilizes signal arrival time for positioning. It is one of the basic positioning algorithms for mobile communication systems. It has the characteristics of easy access to positioning parameters and high positioning accuracy. The system architecture of the TOA algorithm is as follows: figure 1 As shown, the framewor...
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IPC IPC(8): H04W4/02H04W52/02H04W64/00H04L29/08G01S5/06G01S5/02
CPCH04W4/023H04W52/0209H04W64/00G01S5/0221G01S5/0226G01S5/06H04L67/51Y02D30/70
Inventor 丁晟丁元舟
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD