Browsing by Author "Larrauri, Jesus Murgoitio"
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Item A Bluetooth sensor network based on the IEEE 1451 standard: A sensor network solution to evaluate the wellbeing of the passenger and improve safety in cars(2010) Larrauri, Jesus Murgoitio; Larrinaga, Beñat Arejita; Lopez, Maider Larburu; Cubillo, Javier Sanchez; CCAM; POWERTRAIN; Tecnalia Research & InnovationThe use of sensors is very widespread in a lot of different environments and applications. Each situation needs a different solution and for that reason the use of a scalable and easily manageable sensor network is a must as applications are becoming increasingly complex. In many cases the perfect solution is the one based on a wireless sensor network; it provides flexibility, ease of management of the system and expandability. But in order to provide interoperability between different sensor manufacturers and to give a transparent and independent interface, the use of a standard is mandatory. This standard system is provided by the IEEE 1451 family of standard protocols. In this project a Bluetooth based sensor network has been implemented using the IEEE 1451 family of standard protocols. The goal of this network is to aid data acquisition from a number of sensors within a car, in order to monitor the wellbeing of the passengers and improve safety and comfort.Item Car parking assistance based on time-or-flight camera(Institute of Electrical and Electronics Engineers Inc., 2019-06) Pelaez, Luis Paarup; Recalde, Myriam E.Vaca; Munoz, Enrique D.Marti; Larrauri, Jesus Murgoitio; Rastelli, Joshue M.Perez; Druml, Norbert; Hillbrand, Bernhard; Tecnalia Research & Innovation; CCAMExternal sensing for automative applications are key tools for the development of Advanced Driver Assistance Systems (ADAS), since they can sense and analyse the environment around the vehicle by providing pictures of the scene behind the vehicle. Parking assistance systems are already available in the market. However, most of these applications are based on ultrasonic sensors, wide-angle image cameras, RADAR, etc, which present some drawbacks such as dependency to light conditions or high maintenance cost, among others. This paper proposes an approach for assisting drivers to park through the processing of data derived by a 3D Time-of-Flight (ToF) camera and the reconstruction of the objects identified around the vehicle. The proposed technique is focused on fusion of two parallel processing technologies, a visual one through the intensity image and a spatial one through the point cloud. Both of them are centered on the detection of the vehicle's plate to estimate its position and determine free spots in the parking. This novel methodology improves the detection of surrounding elements, since it helps to solve two main problems with this kind of devices: 1) the degraded performance under bright ambient light problem (occurring mainly in outdoor parkings), that causes shadows and brightness in the images, hindering its process to detect objects; and 2) the limited detection of low reflection objects such as dark cars. Moreover, this fusion allows to link each pixel of the image with a 3D position, and vice versa, giving the point cloud a visual reference. The system is evaluated through a Renault Twizy platform in real conditions.Item Spanish initiative to develop a PRT system in the San Sebastian technology park(2013) Larrauri, Jesus Murgoitio; Gonzalez, Arkaitz Urquiza; Comyn, Jose Ignacio Cases; Vizcaya, María Izaguirre; Villalonga, Claudia; CCAM; ROBOTICA_FLEXThe Miramon PRT project is focused on creating an autonomous guided transport system as well as the control and the underlying traffic management. Based on the concept of PRT (Personal Rapid Transport) systems, the goal is to get a new step ahead of the current situation, eliminating the need to incorporate external elements to the existing roads and reduce the cost of the integration. This innovation is born from the union of three entities (CGI, Tecnalia-reference technology center in Spain and Europe- and Novadays-research and consulting company specializing in public services and especially transportation services-) that they intend to create the first PRT of Spanish origin and technology, making a commitment to the most innovative public transport system than currently exists. This project funded by the Ministry of Economy and Competitiveness of the Spanish government has four years duration, after which it is intended to make possible the implantation of PRTs in Spain and other countries positioning itself as suppliers in the international market.Item A UPnP service to control and manage IEEE 1451 transducers in control networks(2012-03) Nieves, Álvaro Reina; Madrid, Natividad Martínez; Seepold, Ralf; Larrauri, Jesus Murgoitio; Larrinaga, Beñat Arejita; CCAMThis paper describes a new universal plug-and-play (UPnP) device, i.e., the Sensor Manager (SM), and its associated network service to access and control smart transducer networks based on the IEEE 1451 standard. In terms of the IEEE 1451, the SM shall be described as a network-capable application processor (NCAP) enhanced with features of the UPnP protocol, e.g., autodiscovery, autoconfiguration, and dynamic adaptation. The SM allows a control station located on the same control network to automatically detect any change in the sensor network. Moreover, the SM provides a general-purpose data-streaming mechanism based on the general event notification architecture and is fully UPnP compliant. The SM is presented as an element within an architecture where advanced features such as transmission modes can be configured. The model throughput is also discussed based on experimental results.