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Indoor map construction method and device based on geomagnetism

An indoor map and construction method technology, applied in the direction of measuring devices, surveying and mapping and navigation, instruments, etc., can solve the problems of the realization of indoor positioning, achieve precise geographical location, and overcome the effect of high cost of data collection

Active Publication Date: 2016-05-04
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, if there is no indoor map provided in advance, the realization of indoor positioning is out of the question

Method used

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  • Indoor map construction method and device based on geomagnetism
  • Indoor map construction method and device based on geomagnetism
  • Indoor map construction method and device based on geomagnetism

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Example 1: Building an indoor map based on a mobile robot

[0037] figure 1 It is a schematic diagram of the structure of the acquisition terminal based on the embodiment of building an indoor map by a mobile robot. It is known from the figure that the device is mainly composed of three parts: the operating platform, see a, the connecting rod, see b, and the main body of the mobile robot, c.

[0038] As an example, if the device can be divided into three parts according to the structure,

[0039] 1. Operation platform, which is composed of LCD touch screen, geomagnetic sensor and corresponding bearing parts. This part can communicate with the main controller through wired or wireless signals. The operating platform and the car body are detachable designs. If wireless signals are used, a power supply system needs to be added to this part. The reason why the geomagnetic sensor is installed at this position is mainly to prevent the magnetic induction intensity generated...

Embodiment 2

[0053] Embodiment 2: Building an indoor map based on a smartphone

[0054] Figure 4 It is a schematic flowchart of a geomagnetism-based indoor map construction method provided by an embodiment of an intelligent mobile terminal. In this embodiment, the smart mobile terminal mainly refers to devices such as smart phones or tablet computers. With the development of smart hardware, mobile terminals such as mobile phones and tablets are equipped with various sensors, and the use of sensor technology also makes mobile terminals more intelligent and convenient. In this embodiment, the inventor selects a smart phone equipped with an Android system as an implementation device, and the main work is to develop related application programs for the device side. This application program integrates the application of smart phone sensors, graphical interface operations and network communications. , install it on the smartphone, and start the application each time the implementation starts....

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Abstract

The invention discloses an indoor map construction method and device based on geomagnetism. The device comprises a movable carrier, a human-computer interaction module, an indoor space position fingerprint information obtaining module, a robot azimuth angle obtaining module, a motion control and speed obtaining module and a main control module. The method overcomes the defects that in the indoor map construction process, an indoor plane graph needs to be obtained in advance, and then uploaded after being vectorized, and then indoor position fingerprint information collecting, binding and path information generating are carried out. Meanwhile, a serialized data collection mode is adopted to generate a geomagnetism data sequence, and the problems that traditional grid map data collection cost is high, because interpolation is carried out after single-point collection, extra calculation amount is generated, and data is partially unreal are solved. In the indoor space datum map construction process, it is unnecessary to intercept and load the indoor plane graph in advance, and starting point, finishing point and node positions of the construction map needed in the target indoor space and a map construction channel just need to be determined.

Description

technical field [0001] The invention belongs to the field of indoor geomagnetic positioning and navigation, and in particular relates to a method and a device for collecting indoor spatial geomagnetic data, indoor positioning, and a navigation map. Background technique [0002] At present, in the field of location services, outdoor positioning and navigation technology is quite mature. The mainstream GPS and my country's self-developed Beidou system can achieve sub-meter outdoor positioning accuracy. In contrast, in large building spaces such as shopping malls, convention centers, airports, high-speed rail stations, and parking lots, satellite positioning technology cannot provide accurate location services for complex indoor spaces because satellite signals are blocked by buildings. In life, people spend most of their time indoors, and with the development of society, indoor spaces are becoming larger and more complex, so the demand for accurate indoor positioning technolog...

Claims

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 朱金辉林政树闵华清梁富云殷士龙庄壮伟张梅
Owner SOUTH CHINA UNIV OF TECH
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