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Indoor target location method for buildings based on two aircrafts

A technology for target positioning and aircraft, which is applied to services based on location information, services based on specific environments, satellite radio beacon positioning systems, etc. Interference, improved safety, and high positioning accuracy

Active Publication Date: 2021-06-29
NANJING DWING AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at the disaster site, even if the indoor positioning base station is deployed, it will be unusable due to damage
[0004] In addition, the current outdoor target positioning mainly relies on GNSS, but indoor GNSS signals are almost unavailable due to building shadows, making positioning difficult

Method used

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  • Indoor target location method for buildings based on two aircrafts

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Embodiment

[0014] Such as figure 1 As shown, in this embodiment, two aircrafts are used to assist in the positioning of indoor targets, and the two aircrafts are respectively denoted as the first aircraft 2 and the second aircraft 3, and the first aircraft 2 is equipped with a first GNSS positioning device (for real-time measuring the position of the first aircraft), a first direction-finding device and a barometer (for real-time measurement of the air pressure at the position of the first aircraft); the second aircraft 3 is equipped with a second GNSS positioning device (for real-time measurement of the second aircraft location) and the second direction-finding device, the first direction-finding device and the second direction-finding device can be one-dimensional direction-finding device, or two-dimensional direction-finding device (in this case, only two-dimensional direction-finding device The measured yaw angle, and the pitch angle is discarded).

[0015] Both the first aircraft a...

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PUM

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Abstract

The invention relates to a method for locating an indoor target of a building based on the assistance of two aircrafts, comprising the following steps: two aircrafts carry direction-finding equipment to fly around the periphery of the building, and a positioning tag carried by the indoor target sends out a signal; The projection of the signal source direction on the horizontal plane is obtained, and the intersection point of the two is the position of the indoor target on the horizontal plane; according to the air pressure difference between the indoor target and the aircraft, the altitude value of the target is obtained, thereby obtaining the position of the target coordinate. The present invention does not need to deploy indoor positioning base stations, not only has high positioning accuracy, but also has good stability and anti-interference performance.

Description

technical field [0001] The invention relates to an indoor target positioning method of a building based on the assistance of two aircrafts, and belongs to the technical field of wireless positioning. Background technique [0002] Public security, emergency response, fire protection and other departments need to locate the personnel entering the scene in real time when there are alarms, disasters, fires, etc. in buildings (especially high-rise buildings). [0003] The main existing indoor positioning methods include Wi-Fi, Bluetooth, UWB (Ultra-Wideband, ultra-wideband), etc. Among them, Wi-Fi and Bluetooth methods can be positioned with the help of existing hardware such as mobile devices, but the positioning accuracy is low and stable. The performance and anti-interference performance are also relatively poor; while the UWB positioning accuracy can reach 10cm level, but the signal penetration is relatively poor, so more positioning base stations need to be deployed, and spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W4/021H04W4/33H04W64/00G01S19/42G01S3/14
CPCH04W4/021H04W4/023H04W4/33H04W64/00G01S19/42G01S3/14B64U10/13G05D1/0094G05D1/104G01S5/0036G01S5/02213G01S5/04G01S2205/03G01C21/206G05D1/042G05D1/0808
Inventor 季嘉银季鸿彭海梅
Owner NANJING DWING AVIATION TECH CO LTD