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Indoor inertial positioning method for personnel based on substation depth-of-field image recognition

An inertial positioning and depth-of-field image technology, applied in navigation, instrumentation, surveying and navigation, etc., can solve the problems that personnel cannot accurately locate indoors, and cannot build auxiliary positioning equipment at will, so as to achieve smooth personnel positioning, eliminate potential safety hazards, and solve positioning problems The effect of poor precision

Active Publication Date: 2022-04-29
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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Problems solved by technology

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides an indoor inertial positioning method for personnel based on substation depth-of-field image recognition. There is no need to build any auxiliary equipment on site. Problems such as not being able to build auxiliary positioning equipment at will, belong to the field of information technology applications

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  • Indoor inertial positioning method for personnel based on substation depth-of-field image recognition
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  • Indoor inertial positioning method for personnel based on substation depth-of-field image recognition

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[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The technical terms used in the present invention are described as follows:

[0028] n-system coordinates: navigation coordinate system, which is the coordinate system adopted by the inertial navigation system when solving the navigation parameters, and the north-east-earth geographic coordinate system is selected as the navigation coordinate system.

[0029] Coordinates of the b system: the carrier coordinate system, the origin is the center of gravity of the carrier, X b Axis forward along the longitudinal axis of the carrier, Z b Axis down the vertical axis of the carrier, Y b axis along the carrier transverse axis with the X b Y b The axes complete the right-handed orthogonal coordinate system.

[0030] SM1: A commercial cipher block standard symmetric algorithm compiled by the State Cryptography Administ...

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Abstract

An indoor inertial positioning method for personnel based on substation depth-of-field image recognition, which uses a three-dimensional depth-of-field camera to quickly scan and model the scene; collects images of key locations, uses image recognition software algorithms for front-end image pre-identification, and converts image information into dot matrix Data, connect to the background server to obtain precise positioning coordinates, greatly reduce the amount of data directly transmitted from the image to the background recognition, and achieve accurate positioning of on-site personnel without additional equipment, effectively solving the traditional positioning methods such as Bluetooth, millimeter wave, and laser. The problem of arranging a large number of equipment on site eliminates potential safety hazards in substations; finally, through inertial navigation algorithms, gyroscopes and acceleration sensors are used to assist on-site personnel positioning, so that personnel positioning can be smooth, real-time and accurate, and effectively solve the power field operation positioning The problem of poor precision can improve the work efficiency of on-site operators.

Description

technical field [0001] The invention relates to the field of precise positioning, in particular to an indoor inertial positioning method for personnel based on substation depth-of-field image recognition. Background technique [0002] With the increasing scale of my country's power grid and the commissioning of new equipment, the operation and maintenance of power grid equipment is faced with problems such as complicated data, complicated steps, high accuracy of equipment disassembly and assembly, and different levels of personnel. The type and scale of equipment in substations are also increasing. At present, the most advanced fully enclosed substation has profoundly changed the deployment mode of the original open substation. All large and small equipment in the substation are placed in relatively independent closed rooms of different sizes. If you want to find the target device accurately, you can only judge by experience. You can’t know exactly where you are and the locati...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16
CPCG01C21/165
Inventor 徐敏彭林韩海韵侯战胜何志敏王刚鲍兴川于海王鹤朱亮李尼格张泽浩周强
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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