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Terminal positioning method and device

A positioning method and terminal technology, which is applied in the field of communication, can solve problems that affect ranging or positioning accuracy, block radio wave transmission, etc., and achieve the effect of accurate positioning results

Active Publication Date: 2020-03-06
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regardless of the positioning scheme based on TOA or TDOA, in actual positioning, especially in indoor environments, various objects will block radio wave transmission, thus affecting the accuracy of ranging or positioning

Method used

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  • Terminal positioning method and device
  • Terminal positioning method and device
  • Terminal positioning method and device

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Embodiment Construction

[0080] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0081] refer to figure 1 , which shows a flow chart of the steps of Embodiment 1 of a terminal positioning method of the present application, and the method may specifically include the following steps:

[0082] Step 101: Acquire the ranging results of each base station for the terminal, wherein the base stations include at least a preset first number of base stations; the ranging results include: the radio frames received by the base stations for ranging actual received signal strength and a distance parameter between the base station and the terminal obtained from ranging;

[0083] In the embodiment of the present application, at least the first number of base stations are deployed to communicate with...

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Abstract

The embodiment of the invention provides a terminal positioning method and device. The method comprises the steps of: obtaining a distance measurement result of each base station for a terminal, wherein the distance measurement result comprises the actual received signal strength of a wireless frame for distance measurement received by the base station and a distance parameter between the base station and the terminal obtained by distance measurement; acquiring the actual transmitting power of the terminal for transmitting the wireless frame; calculating the accuracy of each ranging result according to the actual received signal strength and distance parameter of each ranging result and the corresponding actual transmitting power; selecting a preset second number of target ranging resultsfrom the plurality of ranging results according to the accuracy of each ranging result; and calculating the position of the terminal by adopting the distance parameter of the target distance measurement result. According to the embodiment of the invention, the distance measurement result with a good sight distance propagation effect can be screened out from the distance measurement results of thebase stations, so that a more accurate positioning result is obtained.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a terminal positioning method and a terminal positioning device. Background technique [0002] The Internet of Things technology is the third information technology revolution after computers and the Internet. It has the advantages of real-time and interactivity, and has been widely used in many fields such as urban management, digital home, positioning and navigation, logistics management, and security systems. Among them, LoRa is an ultra-long-distance transmission scheme based on spread spectrum technology in the Internet of Things, which has the characteristics of long transmission distance, low power consumption, multi-node and low cost. [0003] Positioning is an important application of the LoRa network. Current positioning schemes include a positioning scheme based on TOA (Time of Arrival, time of arrival) and a positioning scheme based on TDOA (T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/02H04B17/318
CPCH04W64/006G01S5/02H04B17/318
Inventor 陶震
Owner ALIBABA GRP HLDG LTD
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