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Positioning system and method for compensating timing error of a positioning tag

A technology of positioning tags and positioning systems, applied in the field of timing allocation, can solve the problem that positioning tags MS cannot transmit positioning signals, and achieve the effects of low power consumption and high timing accuracy

Active Publication Date: 2019-08-09
KUNCHEN TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention utilizes the duration te of the single-chip microcomputer to execute empty instructions to compensate the timing error of the positioning tag MS, and solves the problem that the positioning time slot recorded by the positioning tag MS and the positioning time slot recorded by the synchronous controller SC exist when the timing accuracy of the positioning tag MS is poor. Deviation, leading to the problem that some positioning tags MS cannot transmit positioning signals in the positioning time slots allocated by the positioning system

Method used

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  • Positioning system and method for compensating timing error of a positioning tag
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  • Positioning system and method for compensating timing error of a positioning tag

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Embodiment Construction

[0011] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known circuits, materials or methods have not been described in detail in order to avoid obscuring the present invention.

[0012] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in on...

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Abstract

The invention discloses a positioning system and method for compensating a timing error of a positioning tag. The positioning system judges whether all the positioning tags transmit positioning signals in the current positioning period or not according to the time and number of the positioning signals which are transmitted by the positioning tags and received by the positioning base in the currentpositioning period, and adjusts the duration of the timing adjustment period according to the judgment result. Further, the timing error of the positioning tag is compensated by utilizing the time length of executing the null instruction by the single chip microcomputer; the problem that when the timing precision of the positioning tag is poor, the positioning time slot recorded by the positioning tag and the positioning time slot recorded by the synchronous controller have a deviation, so that part of the positioning tag cannot transmit a positioning signal in the positioning time slot distributed for the positioning tag by the positioning system is solved. On the basis of low power consumption and low cost of the positioning tag, the positioning tag has high timing precision, so that apositioning signal is smoothly transmitted in a positioning time slot of the positioning tag, and the positioning system can position the positioning tag.

Description

technical field [0001] The present disclosure relates to the field of wireless communications, and more particularly, the present disclosure relates to timing allocation. Background technique [0002] Short-range, high-precision wireless indoor positioning technology is widely used in dense urban areas and indoor closed spaces. The existing positioning system mainly adopts positioning tags to transmit positioning signals and positioning base stations to receive positioning signals to achieve positioning. In addition, the positioning system also includes a synchronization controller to control the timing synchronization between positioning base stations and positioning tags, so that each The positioning tag transmits a positioning signal in its own positioning time slot, and at the same time, the positioning base station also determines which positioning tag the positioning signal comes from after receiving the positioning time slot in which the positioning signal is located,...

Claims

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Application Information

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IPC IPC(8): H04J3/06H04W56/00H04W64/00
CPCH04J3/0638H04W56/001H04W56/004H04W64/00Y02D30/70
Inventor 陈跃东黄伟张晨曦李飞雪
Owner KUNCHEN TECH CO LTD
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