Method and system for precise spatial positioning

A precise positioning and space technology, applied in navigation, navigation, instruments and other directions through speed/acceleration measurement, can solve the problems of affecting positioning accuracy, loss of positioning data, and large influence of ultrasonic propagation speed, so as to improve accuracy and guarantee The effect of accuracy

Active Publication Date: 2021-12-07
NOLO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of these positioning technologies may face the problem of loss of positioning data due to occlusion and other situations.
[0009] In order to solve the above problems, it is necessary to introduce inertial navigation for data processing, and the calculation process of inertial navigation needs to introduce gravitational acceleration g, which has differences in different regions and will affect the positioning accuracy; in addition, using ultrasonic positioning, the propagation of ultrasonic waves The speed is greatly affected by temperature and humidity, which will also affect the positioning accuracy

Method used

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  • Method and system for precise spatial positioning
  • Method and system for precise spatial positioning
  • Method and system for precise spatial positioning

Examples

Experimental program
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Effect test

no. 1 example

[0046] The method of the present invention, the space provided precisely positioned by an external positioning device (eg: head-mounted display device, etc. mobile terminal) is connected to the phone thermometer, barometer, etc., and gravity to provide temperature values ​​and other sensor information, the sensor information into the external positioning apparatus, IMU sensor data by IMU data information and the external device is positioned in the handset obtained was subjected to fusion process INS calculation to obtain a first position and posture information of the first external positioning apparatus; as INS calculation involves integration calculation, which will persist clutter, so obtaining a second position outside the space in the process of the positioning device of the present invention provides accurate positioning of the low-frequency ultrasonic positioning method, and to a second position in accordance with a first calibration position, to obtain precise positioning...

no. 2 example

[0093] like figure 2As shown in the second embodiment provided by the present invention, the method of providing space is accurately positioned comprises the step of: first obtaining the sensor information on the phone by the application of the application associated with the external positioning device; secondly, acquisition Ultrasonic wave is transmitted to an external positioning device; finally, the speed of spatial position is performed based on the propagation speed of the acquired ultrasonic wave in the air. This process is described in detail below.

[0094] S21, the application of the mobile phone is acquired by the application of the application associated with the external positioning device.

[0095] The sensor information on the phone is obtained by the development interface of the application associated with the external positioning device, and includes the following steps:

[0096] S211, obtain the application associated with the external positioning device, install...

no. 3 example

[0124] The present invention also provides a space exact positioning system. like figure 2 As shown, the system includes a processor 22 and a memory 21 that stores a processor 22 executable instruction.

[0125] Wherein, processor 22 can be a general purpose processor, such as a central processor (CPU), and may also be a digital signal processor (DSP), a dedicated integrated circuit (ASIC), or is configured to implement one or of embodiments of the present invention or Multiple integrated circuits.

[0126] Wherein, the memory 21 is used to store program code and transmit the program code to the CPU. The memory 21 can include a volatile memory, such as a random access memory (RAM); the memory 21 may also include a non-volatile memory, such as read only memory, flash memory, hard disk, or solid state drive; memory 21 can also include the type described above The combination of memory.

[0127] Specifically, a space-accurate positioning system provided by the embodiment of the prese...

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Abstract

The invention discloses a method and system for space precise positioning. Wherein, the method for precise spatial positioning includes the following steps: obtaining sensor information on the mobile phone through the development interface of the application program associated with the external positioning device; obtaining the geographic location of the mobile phone, and initializing the inertial navigation parameters of the external positioning device; obtaining The IMU data of the external positioning device; the IMU data obtained by fusing the sensor information on the mobile phone and the IMU data of the external positioning device is used for inertial navigation calculation to obtain the position information and attitude information of the external positioning device. The invention improves the positioning accuracy on the basis of ensuring the positioning efficiency.

Description

Technical field [0001] The present invention relates to a method for precise positioning of the space, while involving positioning system implementing the positioning method, belonging to the technical field of space positioned. Background technique [0002] Virtual reality technology (Virtual Reality) is a way to create and experience the virtual world of computer simulation system, which uses an analog computer-generated environment, is a multi-source information fusion, interactive 3D dynamic visual and physical behavior system simulation, allowing users to immerse into the environment. [0003] The head-mounted display device (referred to as the first significant), is an important part of virtual reality technology. In the virtual reality technology by a variety of significant head, the optical signal is transmitted to the eye, the use of binocular stereo vision so that the user can see different images are generated, give users a strong three-dimensional, three-dimensional s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16G01C21/20
CPCG01C21/165G01C21/20
Inventor 张益铭张佳宁张道宁
Owner NOLO CO LTD
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