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Effectiveness investigation of the correlation algorithms applied in a Smart ID Card system to monitor the use of PPE
Published in Stein Haugen, Anne Barros, Coen van Gulijk, Trond Kongsvik, Jan Erik Vinnem, Safety and Reliability – Safe Societies in a Changing World, 2018
M. Dźwiarek, T. Łempiński, M. Światowski
In modern systems, sensors devices are increasingly used to the implementation of safety functions. Such systems detect the position of special labels, which in turn allows for localisation of the objects on which these labels have been installed (Dzwiarek 2015, Reiner et al. 2013). An example of such equipment is the Real Time Location System (RTLS), which detects the position of the label (Gomez et al. 2013, Guyoun et al. 2013). RTLS systems employ a variety of location technologies, e.g., active identification using radio waves, optical location and ultrasonic location. A sample application of the location system to improve safety consists in using it in monitoring of employee activities is showed in (Seppa 2012). That is especially useful in detection of situations requiring medical attention (Sachs et al. 2014).
Healthcare IoT (H-IoT)
Published in Shampa Sen, Leonid Datta, Sayak Mitra, Machine Learning and IoT, 2018
Srijita Banerjee, Adrish Bhattacharya, Shampa Sen
Real-time location systems (RTLS) are tracking devices are used for identifying the location of an asset or person in real time, or near real time. Small ID badges or tags are attached to the object or the person of interest, which in turn remain connected through a wireless signal receiver to determine the location of the tagged entity.
Radio Location, Radio Navigation, and GPS Systems
Published in John G. Webster, Halit Eren, Measurement, Instrumentation, and Sensors Handbook, 2017
Both active or passive radio location techniques are used in real-time locating systems (RTLS) for tracking and navigation purposes. There are many commercially available RTLS based on GPS, RFID, TOA, DTOA, and other techniques. Some of these will be explained in the rest of this chapter.
Use of real time localization systems (RTLS) in the automotive production and the prospects of 5G – A literature review
Published in Production & Manufacturing Research, 2022
Christoph Küpper, Janina Rösch, Herwig Winkler
The variety and customer demands for cheap but qualitative products enhance the need for manufacturers to optimize production (Yong et al., 2018). Therefore, manufacturing has become more automated, digitalized and complex with needed monitoring and optimization (Kusiak, 2018; Rácz-Szabó et al., 2020). One tool for realizing this is the usage of an RTLS. Especially in the automotive industry, production lines are filled with robots and complex machines. Combined with the increased connectivity provided by the Internet of Things, a wide range of use cases lead to an increased interest in positioning services (Faheem et al., 2019). Equipment like automated guided vehicles, sensors, track & trace systems and mobile robots are building the foundation of these cyber-physical systems (Ivanov et al., 2021). In this environment, the RTLS must have low costs, low power consumption, low maintenance expenses, and require a minimal amount of new infrastructure (Lauri et al., 2010). By realizing these goals, the link between industry 4.0 and lean manufacturing discussed by (Buer et al., 2018) can be achieved.
Optimisation of line configuration and balancing for reconfigurable transfer lines considering demand uncertainty
Published in International Journal of Production Research, 2021
Xuemei Liu, Jiawei Chen, Aiping Li
Unpredictable market changes have led to uncertainty in product demand. To stay competitive, manufacturers must possess new types of manufacturing systems that can rapidly and cost-effectively respond to market changes (Koren 2013). An effective way to deal with the demand uncertainty is to adopt reconfigurable transfer lines (RTLs). RTLs allow rapid changes in hardware and software configuration to satisfy demand and product variation at a high volume (Koren et al. 1999). Hardware modification, addition/replacement is considered a form of physical (hard) reconfiguration according to the current definition of a Reconfigurable Manufacturing System (RMS), meanwhile the rest represent logical (soft) reconfiguration (ElMaraghy 2005). The physical reconfiguration activities consist of adjusting workstations by adding/removing machines or machine modules, and adjusting line layout, changing material handling devices (Maniraj, Pakkirisamy, and Jeyapaul 2017). Many efforts have been made in this regard. However, such physical reconfiguration activities may be expensive and time-consuming. Even for flexible transfer lines with a certain degree of reconfigurability, the cost associated with such activities cannot be ignored (Tolio and Urgo 2013). Therefore, such physical reconfiguration measures would be taken only when demand exceeds the maximum production capacity or there is large redundancy in system capacity (Duan et al. 2012). As a result, logical reconfiguration activities, such as using overtime work and rearranging workstations to perform a new set of operations, are commonly adopted to acquire extra capacity (Xu et al. 2015; Yang and Gao 2016).