Accurate personnel positioning system for intelligent construction site and positioning method

Abstract

The invention discloses an accurate personnel positioning system for an intelligent construction site and a positioning method thereof. The accurate personnel positioning system comprises a UWB helmet label, a UWB miniature base station, an unmanned aerial vehicle RTK positioning system, a gyroscope, an inertial navigation device, an acceleration sensor, a wireless communication unit and a video image module, wherein the gyroscope, the inertial navigation device, the acceleration sensor, the wireless communication unit and the video image module are locally configured on an unmanned aerial vehicle. The system is convenient to deploy and maintain, meanwhile, the RTK accurate positioning unit and a wireless image transmission function carried by the unmanned aerial vehicle are combined, accurate position management and control and emergency rescue plans of intelligent construction site workers can be achieved at low cost, the supervision problem faced by supervision departments can be well solved, and the operation safety and the intelligent management level of a construction unit are improved.

Description

technical field [0001] The invention belongs to the technical field of precise positioning, and in particular relates to a precise personnel positioning system and positioning method for smart construction sites. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's travel conditions, the outdoor GPS positioning technology has been very mature and has been popularized in a large area, which provides great convenience for people's daily life and work. The corresponding indoor positioning technology has developed rapidly in recent years. As an effective supplement to outdoor GPS positioning, it has been applied in many application scenarios, especially the high-precision indoor positioning technology represented by UWB in digital factories, smart parks, and smart mines. and other fields have been widely promoted. [0003] However, the personnel positioning supervision for the current key smart construction sites has...

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Problems solved by technology

[0003] However, the personnel positioning supervision for the current key smart construction sites has not been widely promoted. The reason is that the construction of the smart construction site itself is a dynamic process, and the shape of the construction site is constantly changing with the progress of the construction. In addition, it is a project under construction. The internal communication network and power supply are extremely inconvenient, so that the high-precision positioning system represented by UWB has not been able to be widely promoted; and the current three-dimensional supervision requirements of smart construction sites, while the mainstream indoor positioning system is mainly based on two-dimensional plane positioning, which cannot meet the smart The construction site has positioning requirements for the elevation and the height coordinates of the deep foundation pit; thirdly, all the projects under construction on the smart construction site require the installation of protective nets on the outside, which makes the positioning scheme represented by image recognition helpless

[0004] Aiming at the demand of intelligent construction site for personnel location supervision, this system proposes a new type of personnel positioning system that combines UAV RTK positioning and UWB high-precision ranging. The construction personnel wear UWB helmet tags, and the drone carries the RTK positioning system. And UWB micro-base station, with the help of the standard gyroscope, inertial navigation, acceleration sensor and image camera system of the UAV, it can realize the precise positioning solution of using the machine to locate people, and solve the problem that the current single positioning system cannot realize the precise positioning of smart construction site personnel

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