Inertial Navigation Systems (INS) tightly coupled with GPS/GNSS receivers offer a breakthrough solution: continuous, real-time, sub-centimeter positioning that functions even in GPS-denied environment...
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High-speed tunnel bridge positioning - BlazingFast Photonics [PDF]
During shield tunneling excavation, it is extremely important to obtain the accurate positions of the control points which determines the quality of the tunnel construction. The present
Although the road tunnels are part of critical transport infrastructure, also higher safety requirements are applied, there are also blind spots that are still not solved, such as the availability of
However, in a GNSS-denied environment, these commonly used methods are either unavailable or significantly limited.For example, in road tunnels, signals are blocked by the tunnel
To achieve the goal of accurate positioning in the high-speed tunnel and solve the problem of navigation and positioning in the tunnel, this paper uses
This article provides an overview of the basic principles and architecture design of alternative localization approaches to ensure a reliable positioning in road tunnels. Furthermore, the
During tunnel boring and bridge pier construction, INS GPS systems provide real-time ground settlement and structure displacement data to construction management teams.
In order to ensure the safety of the Beijing–Shanghai high-speed railway during the construction and operation of the shield tunnel on Line R1 of
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This paper proposes a hybrid multi-sensor fusion strategy for vehicle positioning in tunnels. First, the preliminary positioning algorithm is developed.
INS Navigation Solutions for Tunnel & Bridge Health Monitoring Precision inertial navigation sensors engineered for structural deformation sensing, underground positioning, and bridge dynamic
This survey provides a detail survey of various existing vehicle positioning techniques for tunnel environments in the literature including positioning principles, the advantages and
With the development of high-speed railways in the western and coastal areas of China, bridges and tunnels have been widely used to ensure their track regularity under complex terrain conditions. The
There exists an electromagnetic shielding effect on radio signals in a tunnel, which results in no satellite positioning signal in the tunnel scenario. Moreover, because vehicles always drive at a high speed
LiDAR positioning technology precisely measures the position of target objects by emitting laser beams and measuring the time or angle of their reflection. This approach offers
Request PDF | On Jan 1, 2019, Fuzhu Fang and others published High Precision Positioning and Accident Detection System for Vehicles in Traffic Tunnel | Find, read and cite all the research you
To simulate the positioning performance of tunnel vehicles using a GNSS/INS/OD combination, the authors conducted experiments on a certain
When a high-speed train is running in a tunnel, the global navigation satellite system (GNSS) signal is completely lost. Relying only on the inertial
Track-selective magnetic localization Along-track localization: positioning availability with detected and excluded distortions is > 98% O, X is from a detector, not from data labeling
In the article, the evaluation of alternative positioning approaches in the GNSS denied environment is presented. The evaluation was carried out using a comprehensive analysis with multi
Based on this method, high-speed train navigation tests are carried out both in the real tunnel environment and in the case of artificially disconnected
We developed a novel positioning framework for long tunnels named the Enconv1d model by integrating the temporal and spatial feature extraction
Abstract A high-speed train will likely experience hazardous driving environments because of the transient effect of complex airflow condition when
A high precision positioning system with IEEE 802.15.4-2011 UWB as air-interface with functionality of accident detection is designed and implemented and implemented for traffic tunnels where GNSS
In this paper, a positioning strategy utilizing ultra-wide band (UWB) and a low-cost MEMS inertial navigation system (INS) is proposed, aimed at tracking vehicles in typical GNSS-denied
Taking the Guiguang high-speed railway as an example, this paper analyzes several key problems that restrict construction efficiency and safety, a series of research achievements are
Abstract This study addresses the challenge of autonomous aerial vehicle positioning in indoor environments where GPS signals are unavailable, proposing a navigation approach that