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Method and device for vehicle navigation in indoor environment

A technology for indoor environment and vehicle navigation, applied in the field of navigation and positioning, can solve the problems of inconvenience, time-consuming and laborious, unstable WIFI signal for users, and achieve the effect of improving accuracy and convenience.

Active Publication Date: 2013-06-05
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

The construction of the fingerprint library is a rather time-consuming and laborious work. It is necessary to collect the WIFI signal strength fingerprints on all geographical coordinates in the indoor environment. However, the WIFI signal itself is relatively unstable and will be affected by spatial things, and will also change with time and space. Different changes occur due to different conditions, causing greater inconvenience to users

Method used

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  • Method and device for vehicle navigation in indoor environment
  • Method and device for vehicle navigation in indoor environment
  • Method and device for vehicle navigation in indoor environment

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Embodiment Construction

[0035] Such as figure 1 As shown, in one embodiment, a vehicle navigation method in an indoor environment includes the following steps:

[0036] Step S10, acquiring the acceleration and direction information of the vehicle measured by the mobile terminal.

[0037] In this embodiment, the mobile terminal may be a device such as a smart phone or a tablet computer. Since the mobile terminal is usually equipped with an accelerometer and a gyroscope, the mobile terminal is selected to measure the acceleration and direction information during the driving of the vehicle, and the mobile terminal carried by the user in the vehicle is used according to local conditions without other additional equipment. Improved convenience.

[0038] Further, in a preferred embodiment, the number of accelerometers in the mobile terminal is three, which are used to measure the acceleration of the translational movement of the vehicle in the three directions of the navigation coordinate system; the num...

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Abstract

The invention provides a method and a device for vehicle navigation in an indoor environment. The method comprises obtaining acceleration and direction information which are measured through a mobile terminal when a vehicle is driven; calculating the acceleration so as to obtain an operating range of the vehicle and forming navigation information of the vehicle with the operating range and the direction information; and correcting the navigation information through vibration generated by a speed bump of the vehicle in the indoor environment. The system comprises a measurement obtaining module used for obtaining the acceleration and the direction information measured through the mobile terminal when the vehicle is driven; an information generation module used for calculating the acceleration, obtaining the operating range of the vehicle and forming the navigation information of the vehicle with the operating range and the direction information; and a correction module used for correcting the navigation information through the vibration generated by the speed bump of the vehicle in the indoor environment. According to the method and the device for the vehicle navigation in the indoor environment, convenience on operation can be improved.

Description

technical field [0001] The invention relates to navigation and positioning technology, in particular to a correction method and device for vehicle navigation in an indoor environment. Background technique [0002] With the wide application of automobiles, vehicle navigation systems installed in automobiles are becoming more and more common. For example, the traditional vehicle navigation system is usually GPS (Global Positioning System; Global Positioning System), which uses GPS to realize real-time positioning and navigation of vehicles. [0003] For the GPS signal, the outdoor environment will not have any impact on the GPS signal. However, the indoor environment will greatly affect the GPS signal due to factors such as walls and other factors, and it is impossible to realize real-time positioning and navigation of vehicles in the indoor environment. Therefore, positioning and navigation in an indoor environment can only be realized through indoor navigation technologies s...

Claims

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Application Information

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IPC IPC(8): G01C21/26
Inventor 蒋方胜谭光鲁鸣鸣
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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