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Method and device for indoor positioning

An indoor positioning and equipment technology, applied in the field of communication, can solve the problems of lack of structural civil positioning technology and high cost

Active Publication Date: 2021-08-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of indoor positioning technology is mainly for public places such as enterprises and shopping malls, and the cost is relatively high. There is a lack of civilian positioning technology suitable for families with complex structures and small spaces.

Method used

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  • Method and device for indoor positioning
  • Method and device for indoor positioning

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Embodiment 1 is a method for indoor positioning of a user's smart terminal through a smart home device. This is a general method that can be used for various services related to the user's location, such as automatic identification of the device that the user wants to control, automatic switching of lights and Music auto-follow and other functions.

[0057] There are a large number of smart home appliances in smart homes, and currently wireless WiFi, Bluetooth or Zigbee are the main communication methods. Figure 4 It is a schematic diagram of a family, except the smart phone (smart user terminal) in the green circle is a mobile client, the others are all smart home appliances, and the use environment is mainly fixed (except for smart sweeping robots). These home appliances can be controlled by smart terminals to form a distributed base station for indoor positioning when required. By controlling and sending necessary signals, the mobile phone can calculate the position...

Embodiment 2

[0083] The method of Embodiment 1 has a defect. The positioning measurement process needs to notify all home devices, and the terminal needs to scan the signals sent by these devices. It takes a few seconds to more than ten seconds, and the waiting time for some services that require faster response is longer. This situation can be improved by the following methods.

[0084] Because the home positioning function is only used inside the home, the home local area network is used at this time, and the terminal is connected through the WiFi of the router. Signal values ​​are averaged to obtain more accurate and stable values. When you need to use the positioning function later, first judge whether the network has changed (still using the same SSID connection), and the signal strength of the router has not changed significantly (the change is less than 5dB), then judge that the user has not moved significantly and is still in the same room (moving to another In a room, the change ...

Embodiment 3

[0087] Among the various services of the smart home, voice control plays an important role. However, the current voice control is unintelligent and ineffective. One of the reasons is that users usually use their own perception as a known condition when using voice command control. For example, in the control command, they do not indicate which device to use, but use The device that is closest to you or visible to you is the object of the command, and you can simply use commands such as "turn on the light" to control it. In this way, for the smart home control system, because of the lack of necessary information, the control command cannot be generated, resulting in control failure. This situation can be solved by the indoor positioning technology implemented by this method: when the terminal finds that the user's voice control command does not specify a device, and there are multiple devices in the family that can be matched, it will determine whether there is a device in the ...

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Abstract

An indoor positioning method, comprising: a first device sends a first signal to a second device in a first area; the first signal is used to trigger the second device to send a beacon signal; the beacon signal carries an identifier of the second device; A device detects the signal strength of the beacon signal sent by the second device; the first device determines the position of the first device relative to the second device according to the signal strength of the beacon signal and the identifier carried by the beacon signal. Under the premise of not deploying base stations and increasing user costs, this method aims at the characteristics of home smart services and home environments, uses existing smart home appliances, and uses software control and algorithms to realize the indoor positioning function for users and provide home smart services. There is a lot of room for development and the possibility of new smart services.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201710046272.9 and the title of the invention "a method and device for indoor positioning using smart home appliances" submitted to the China Patent Office on January 20, 2017, the entire content of which is incorporated by reference incorporated in this application. technical field [0002] The present invention relates to the communication field, in particular to an indoor positioning method and equipment. Background technique [0003] With the development of smart homes, there are more and more types of smart home appliances, which enrich the functions of traditional home appliances and bring great convenience to people's lives. Such as figure 1 As shown, the smart home system can be composed of smart home appliances, control terminals and cloud servers. Among them, there can be multiple smart home appliances in a smart home system, and smart home appliances can hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W4/33H04W64/00
CPCH04W4/025H04W4/33H04W64/006G01S2205/02G01S5/02H04W4/02H04W64/00
Inventor 李念
Owner HUAWEI TECH CO LTD
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