The application of Wi-Fi RTLS in automatic warehouse management system

Liu, Tongjuan

doi:10.1109/ical.2011.6024685

Cited by 28 publications

(17 citation statements)

References 5 publications

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“…UWB refers to radios with a spectrum bandwidth of at least 500 MHz or 20% of their center frequency [2]. This enables access to a redundant positioning principle independent of GNSS applicable for usage in local positioning of industrial robots [3], terminal and warehouse containers [4] together with applications in patient care and in construction sites [5].…”

Section: Introductionmentioning

confidence: 99%

Aided inertial navigation of small unmanned aerial vehicles using an ultra-wideband real time localization system

Cisek

Gryte

Bryne

et al. 2018

2018 IEEE Aerospace Conference

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This paper presents an ultra-wideband (UWB) radio aided inertial navigation system (INS), estimating position, velocity and attitude (PVA), based on a low-cost microelectro-mechanical system (MEMS) Inertial Measurement Units (IMUs). This ensures that a drift free INS is available for local unmanned aerial vehicle (UAV) navigation independent of global navigation satellite systems (GNSS). The experimental results show that the presented integration of UWB and INS is promising for navigating independent of satellite-based positioning systems, and illustrates the possible enhancements that are possible when adding an additional vertical position measurement.

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Section: Introductionmentioning

confidence: 99%

Aided inertial navigation of small unmanned aerial vehicles using an ultra-wideband real time localization system

Cisek

Gryte

Bryne

et al. 2018

2018 IEEE Aerospace Conference

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“…1). Some applications for RTLSs are positioning of industrial robots, containers in terminals [2] and warehouses [3], mobility assistance for handicapped people, patient monitoring, and safety applications in construction sites [4]. In many cases RTLSs are based on an Ultra-wideband (UWB) transceivers [5].…”

Section: Introductionmentioning

confidence: 99%

Ultra-wide band Real time Location Systems: Practical implementation and UAV performance evaluation

Cisek

Zolich

Klausen

et al. 2017

2017 Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS)

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Several different methods can be used to determine the 3-dimensional position of an object. A common solution is use of Global Navigation Satellite System (GNSS). However, for some operation the specific characteristics of GNSS can be challenging, e.g. time-to-fix on GPS RTK or unavailability of GNSS signals. When considering operations within limited range (a few hundreds of meters) another solution based on Ultra-wideband Real Time Location Systems (UWB RTLS). In this paper authors have tested a setup of a tag and five anchors in order to determine if such solution can be used in local operations of Unmanned Aerial Vehicles (e.g. landing). Experimental data are analyzed and comapred against GPS RTK measurements.

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“…Ultra-wideband (UWB) is a short-range and energy efficient radio technology useful in a high-bandwidth wireless communication. Due to their functionalities and performances, the use of UWB-based RTLSs as tracking management systems has gained increasing attention in industrial and logistic applications, for instance container terminals [ 2 ], and warehouses [ 3 ]. Besides that, RTLSs have been widely applied in security applications in construction sites as a safety system [ 4 , 5 ], in healthcare for precisely monitoring and tracking people and goods [ 6 , 7 , 8 ] and in agriculture for animal behaviour monitoring [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Customization of UWB 3D-RTLS Based on the New Uncertainty Model of the AoA Ranging Technique

Jachimczyk¹,

Dziak

Kulesza

2017

Sensors

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Abstract:The increased potential and effectiveness of Real-time Locating Systems (RTLSs) substantially influence their application spectrum. They are widely used, inter alia, in the industrial sector, healthcare, home care, and in logistic and security applications. The research aims to develop an analytical method to customize UWB-based RTLS, in order to improve their localization performance in terms of accuracy and precision. The analytical uncertainty model of Angle of Arrival (AoA) localization in a 3D indoor space, which is the foundation of the customization concept, is established in a working environment. Additionally, a suitable angular-based 3D localization algorithm is introduced. The paper investigates the following issues: the influence of the proposed correction vector on the localization accuracy; the impact of the system's configuration and LS's relative deployment on the localization precision distribution map. The advantages of the method are verified by comparing them with a reference commercial RTLS localization engine. The results of simulations and physical experiments prove the value of the proposed customization method. The research confirms that the analytical uncertainty model is the valid representation of RTLS' localization uncertainty in terms of accuracy and precision and can be useful for its performance improvement. The research shows, that the Angle of Arrival localization in a 3D indoor space applying the simple angular-based localization algorithm and correction vector improves of localization accuracy and precision in a way that the system challenges the reference hardware advanced localization engine. Moreover, the research guides the deployment of location sensors to enhance the localization precision.

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The application of Wi-Fi RTLS in automatic warehouse management system

Cited by 28 publications

References 5 publications

Aided inertial navigation of small unmanned aerial vehicles using an ultra-wideband real time localization system

Aided inertial navigation of small unmanned aerial vehicles using an ultra-wideband real time localization system

Ultra-wide band Real time Location Systems: Practical implementation and UAV performance evaluation

Customization of UWB 3D-RTLS Based on the New Uncertainty Model of the AoA Ranging Technique

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