Change search
Refine search result
1 - 8 of 8
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Andersson Ersman, Peter
    et al.
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Eriksson, Jerry
    RISE Research Institutes of Sweden, Built Environment, Building and Real Estate. Elitfönster AB, Sweden.
    Jakonis, Darius
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Pantzare, Sandra
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Åhlin, Jessica
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Strandberg, Jan
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Sundin, Stefan
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Toss, Henrik
    RISE Research Institutes of Sweden, Digital Systems, Mobility and Systems.
    Ahrentorp, Fredrik
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Daoud, Kaies
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Jonasson, Christian
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Svensson, Henrik
    Elitfönster AB, Sweden.
    Gregard, Greger
    ChromoGenics AB, Sweden.
    Näslund, Ulf
    Vasakronan AB, Sweden.
    Johansson, Christer
    RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
    Integration of Screen Printed Piezoelectric Sensors for Force Impact Sensing in Smart Multifunctional Glass Applications2022In: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648, Vol. 24, no 11, article id 2200399Article in journal (Refereed)
    Abstract [en]

    Screen printed piezoelectric polyvinylidene fluoride?trifluoro ethylene (PVDF?TrFE)-based sensors laminated between glass panes in the temperature range 80?110?°C are presented. No degradation of the piezoelectric signals is observed for the sensors laminated at 110?°C, despite approaching the Curie temperature of the piezoelectric material. The piezoelectric sensors, here monitoring force impact in smart glass applications, are characterized by using a calibrated impact hammer system and standardized impact situations. Stand-alone piezoelectric sensors and piezoelectric sensors integrated on poly(methyl methacrylate) are also evaluated. The piezoelectric constants obtained from the measurements of the nonintegrated piezoelectric sensors are in good agreement with the literature. The piezoelectric sensor response is measured by using either physical electrical contacts between the piezoelectric sensors and the readout electronics, or wirelessly via both noncontact capacitive coupling and Bluetooth low-energy radio link. The developed sensor concept is finally demonstrated in smart window prototypes, in which integrated piezoelectric sensors are used to detect break-in attempts. Additionally, each prototype includes an electrochromic film to control the light transmittance of the window, a screen printed electrochromic display for status indications and wireless communication with an external server, and a holistic approach of hybrid printed electronic systems targeting smart multifunctional glass applications.

  • 2.
    Hadj-Bachir, Mokrane
    et al.
    ESI Group, France.
    Bagheri, Toktam
    UniqueSec AB, Sweden.
    Toss, Henrik
    RISE Research Institutes of Sweden, Safety and Transport, Vehicles and Automation.
    de Souza, Philippe
    ESI Group, France.
    Sanfridson, Martin
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Over-the-Air Automotive Radars Hardware-in-Loop Test for Development and Validation of Active Safety Systems and Autonomous Cars2023In: 2023 IEEE International Workshop on Metrology for Automotive (MetroAutomotive), 2023, p. 205-210Conference paper (Refereed)
    Abstract [en]

    Due to the development of new radar technology for advanced driver-assistance systems (ADAS) and automated driving (AD) applications, testing radars for real world conditions is highly desirable. However, testing autonomous driving functions on public roads can be dangerous and the tests results are not always reproducible. In this paper, we present a novel Over-the-Air (OTA) Hardware-In-the-Loop (HIL) radar target simulator for testing radar systems. The complete simulation setup including hardware and software implementations will be presented in this article. We illustrate a test procedure by creating Euro NCAP scenarios, and explain the benefits and importance of realtime HIL testing of automotive radars.

  • 3.
    Karlsson, Kristian
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Electronics.
    Toss, Henrik
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Electronics.
    Costagliola, F.
    Volvo Car Corporation, Sweden.
    Reducing influence from ground reflection during RCS characterization of automotive targets2019In: 13th European Conference on Antennas and Propagation, EuCAP 2019, Institute of Electrical and Electronics Engineers Inc. , 2019Conference paper (Refereed)
    Abstract [en]

    Ground reflection is the major contributor to measurement uncertainty in the characterization of Radar Cross-Section (RCS) of automotive targets. In this paper we present a study of the influence of ground reflection on RCS measurements of large targets - such as real vehicles or surrogate objects - performed on flat outdoor test ranges. The influence of ground reflection and several means to reduce this effect are investigated and compared. Results are derived with theoretical formulas and simple models.

  • 4.
    Karlsson, Kristian
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Electronics.
    Toss, Henrik
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Electronics.
    Lang, John
    Autoliv, Sweden.
    Costagliola, Francesco
    Volvo Car Corporation, Sweden.
    Zheng, Tian
    Volvo Car Corporation, Sweden.
    Marel, Elias
    Volvo Car Corporation, Sweden.
    HiFi Radar Target: High fidelity soft targets and radar simulation for more efficient testing (real and virtual)2018Report (Other academic)
    Abstract [en]

    The 77 GHz radar is a crucial sensor in the Advanced Driver Assistance System (ADAS) and Autonomous Driving (AD) system due to its ability to detect and track objects at distances up to 200 meters. To ensure high reliability of the radar function, extensive testing with soft surrogate targets is needed. However, the radar response of a surrogate target may differ from that of real targets, causing unexpected reactions of the ADAS and AD functions in real traffic situations. The first project goal was therefore to develop and validate realistic soft surrogate targets, a work which was performed in several steps. First radar reference targets were designed and verified. Secondly procedures for calibration of automotive radars were developed. Finally, a thorough investigation on Radar Cross Section (RCS) characterization methods for large test objects on the test track was conducted resulting in several measurement setups and measurement procedures including uncertainty analysis. Now, with the ability to perform repeatable and reliable RCS characterizations, several real and surrogate targets were characterized and work on improving RCS profile of surrogate targets were conducted.Strong competition in the automotive industry and the need to validate more and more complex functions (including autonomous drive) drives the development of virtual test methods. The ability to test the ADAS or AD functions virtually early in the development will save considerable time and cost. However, there were no such tools available with full radar simulation in-loop available prior to the project, which was the reason for the second goal of this project: an ADAS/AD system simulation tool-chain with radar simulation in-loop.The HiFi Radar Target project (diarienr. 2015-04852) was an FFI project within the Electronics, Software and Communications program. After prolongation it was a 30-month project that started 2015-12-31 and ended 2018-06-30. The project had a total budget of 15.9 MSEK.

    Download full text (pdf)
    fulltext
  • 5.
    Sjöblom, Ted
    et al.
    RISE Research Institutes of Sweden, Safety and Transport, Maritime department.
    Benderius, Ola
    Chalmers University of Technology, Sweden.
    Blanch, Krister
    Chalmers University of Technology, Sweden.
    Berger, Christian
    Chalmers University of Technology, Sweden.
    Rylander, Robert
    RISE Research Institutes of Sweden, Safety and Transport, Maritime department.
    Karlsson, Fredrik
    Swedish Maritime Administration, Sweden.
    Olsson, Rick
    RISE Research Institutes of Sweden, Safety and Transport, Maritime department.
    Sanfridson, Martin
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Toss, Henrik
    RISE Research Institutes of Sweden, Safety and Transport, Vehicles and Automation.
    Olsson, Fredrik
    RISE Research Institutes of Sweden, Safety and Transport, Maritime department.
    Lundman, Joakim
    RISE Research Institutes of Sweden, Safety and Transport, Maritime department.
    REEDS: Reference data and algorithms for research and development of smart ships2023Report (Other academic)
    Abstract [en]

    The Swedish Transport Administration Research and Innovation fund for Maritime research funded the project "Reference data and algorithms to support research and development of smart ships". The project goes by the working name, and is communicated as, Reeds. It responds to a synthesis of a number of different needs identified in previous projects and studies. The background to the project is that in recent years the focus has been on developing algorithms to interpret and act on the physical environment around different types of craft. In order to be able to develop and evaluate these algorithms, it has become clear that open datasets and a fair benchmarking platform are required that allow various developers in industries and researchers to evaluate algorithms. In the road vehicle sector, Kitti, as of 2013, is the largest dataset used as a reference dataset. The dataset in this project contains sensor data from several data collection occasions within a maritime context, from high-precision sensors such as cameras, radar, lidar, and IMU. For marine applications, there has been no similar dataset with anywhere near the same amount of data and time synchronisation between sensors. The reference data and reference algorithms were available periodically during the project through an online service where researchers and developers could upload their algorithms to use the dataset.

    In addition to the dataset itself, Reeds adds additional strengths compared to other reference datasets:

    -        New approach to comparing algorithms fairly, where new algorithms are always compared on a centralised hardware in a cloud service and re-evaluated when new data is added, i.e. an unbiased algorithm evaluation service.

    -        Method that combines NTP and PTP time protocols for synchronisation between the sensors with microsecond accuracy

    -        More types and more modern sensors that can be used at a higher level of abstraction and can thus be applied in more areas.

    -        Sensor fusion of both onboard and land-side sensors

    -        Identify areas of application for navigation and surveillance on land based on the algorithms developed during the project and the use of new sensor types not established in shipping.

    -         

    The project built up a maritime reference data set that enables the creation of a digital description for the ship's surrounding environment and developed reference algorithms to demonstrate new navigation and monitoring methodology in the area of "enhanced navigation".

    "Enhanced navigation" is defined under the project as the use of new technology based on developments in digitisation and autonomous functions, where new navigation methods use sensors both on board and ashore to increase maritime safety and robustness. The project has built a web-based user interface referred to in the report as "Crowsnest" that handles these new sensors and visualises this data in a familiar interface similar to an overlay in ECDIS that is openly available for the public to build on. Which was used for the evaluation and concept development of new user interfaces based on feedback from pilots and VTS operators.

    By providing reference datasets and reference algorithms with demonstrations, researchers and companies now have the opportunity to develop algorithms for the intelligent and autonomous ships of the future.

    Download full text (pdf)
    fulltext
  • 6.
    Toss, Henrik
    RISE - Research Institutes of Sweden, Safety and Transport, Electronics.
    How to Perform EMC Testing of Autonomous Vehicles2017In: Electronic Environment, no 3, p. 32-34Article in journal (Other academic)
    Abstract [en]

    EMC TESTING of autonomous vehicles is challenging because the involved systems are designed to identify unrealistic driving conditions, which is exactly what we have in a typical anechoic EMC chamber. When the system detects unrealistic conditions, autonomous driving functions are disabled or set to predefined states, which means that EMC testing of autonomous functions is not possible. To fully test autonomous driving systems, we therefore need to emulate a realistic environment in many aspects, i.e., we need to stimulate involved sensors in a realistic way.

  • 7.
    Toss, Henrik
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Electronics.
    Karlsson, Kristian
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Electronics.
    Radar reflectivity spatial profile of 3D surrogate targets and real vehicles2019In: 13th European Conference on Antennas and Propagation, EuCAP 2019, Institute of Electrical and Electronics Engineers Inc. , 2019Conference paper (Refereed)
    Abstract [en]

    In this paper a method to find a radar reflectivity spatial profile for comparing 3D surrogate targets with real vehicles is proposed. Utilizing this method, the spatial profile can be acquired using only high-level data from an automotive grade radar. For data within a small angular window at arbitrary aspect angle relative to the target, the proposed method back-projects Radar Cross Section (RCS) detections, to build up a spatial profile. This profile can then be used to evaluate multiple scattering centers on targets, which are important during test of autonomous vehicles and active safety functions. The method is used on measured data from 3D surrogate targets as well as real vehicles, which are presented in the paper.

  • 8.
    Toss, Henrik
    et al.
    Linköping University, Sweden.
    Lönnqvist, Susanna
    Linköping University, Sweden.
    Nilsson, David
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Sawatdee, Anurak
    RISE - Research Institutes of Sweden (2017-2019), ICT, Acreo.
    Nissa, Josefin
    Linköping University, Sweden.
    Fabiano, Simone
    Linköping University, Sweden.
    Berggren, Magnus
    Linköping University, Sweden.
    Kratz, Gunnar
    Linköping University, Sweden.
    Simon, Daniel T.
    Linköping University, Sweden.
    Ferroelectric surfaces for cell release2017In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 228, p. 99-104Article in journal (Refereed)
    Abstract [en]

    Adherent cells cultured in vitro must usually, at some point, be detached from the culture substrate. Presently, the most common method of achieving detachment is through enzymatic treatment which breaks the adhesion points of the cells to the surface. This comes with the drawback of deteriorating the function and viability of the cells. Other methods that have previously been proposed include detachment of the cell substrate itself, which risks contaminating the cell sample, and changing the surface energy of the substrate through thermal changes, which yields low spatial resolution and risks damaging the cells if they are sensitive to temperature changes. Here cell culture substrates, based on thin films of the ferroelectric polyvinylidene fluoride trifluoroethylene (PVDF-TrFE) co-polymer, are developed for electroactive control of cell adhesion and enzyme-free detachment of cells. Fibroblasts cultured on the substrates are detached through changing the direction of polarization of the ferroelectric substrate. The method does not affect subsequent adhesion and viability of reseeded cells.

1 - 8 of 8
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf