Limits of sensing and storage electronic components for high-reliable and safety-critical automotive applications

Pieri, Francesco; Zambelli, Cristian; Nannini, Andrea; Olivo, P.; Saponara, Sergio

doi:10.23919/eeta.2017.7993219

Cited by 8 publications

(13 citation statements)

References 22 publications

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“…These three kits were also interconnected using a WiFi router to manage the communications among them to synchronize the experiments and gather the information ready to be compared. According to [ 18 ], the accurate determination of IMU and controller position is essential for enhancing the precision of low-cost kits.…”

Section: Methodsmentioning

confidence: 99%

“…The use of small computers with a high processing capacity and a number of input/output interfaces allows incorporating into vehicles both estimators and controllers, increasing their safety. Previous research [ 18 ] analyzed the integration of low-cost sensors in vehicles. This research indicates that this kind of low-cost kit could present relevant bias and noise that need to be studied experimentally.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

VEHIOT: Design and Evaluation of an IoT Architecture Based on Low-Cost Devices to Be Embedded in Production Vehicles

Redondo

Prieto-González

Guzmán

et al. 2018

Sensors

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Nowadays, the current vehicles are incorporating control systems in order to improve their stability and handling. These control systems need to know the vehicle dynamics through the variables (lateral acceleration, roll rate, roll angle, sideslip angle, etc.) that are obtained or estimated from sensors. For this goal, it is necessary to mount on vehicles not only low-cost sensors, but also low-cost embedded systems, which allow acquiring data from sensors and executing the developed algorithms to estimate and to control with novel higher speed computing. All these devices have to be integrated in an adequate architecture with enough performance in terms of accuracy, reliability and processing time. In this article, an architecture to carry out the estimation and control of vehicle dynamics has been developed. This architecture was designed considering the basic principles of IoT and integrates low-cost sensors and embedded hardware for orchestrating the experiments. A comparison of two different low-cost systems in terms of accuracy, acquisition time and reliability has been done. Both devices have been compared with the VBOX device from Racelogic, which has been used as the ground truth. The comparison has been made from tests carried out in a real vehicle. The lateral acceleration and roll rate have been analyzed in order to quantify the error of these devices.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

VEHIOT: Design and Evaluation of an IoT Architecture Based on Low-Cost Devices to Be Embedded in Production Vehicles

Redondo

Prieto-González

Guzmán

et al. 2018

Sensors

View full text Add to dashboard Cite

show abstract

“…In case the machinery is operating in an industrial scenario where buildings may create occlusions, or some operation are done an indoor environment, the support of an IMU is required. As we discussed in [9], the accuracy of IMU is limited by bias issues of accelerometers and gyroscopes. Due to the double integration process of an IMU-based navigation system, it is difficult to mitigate the effect of the bias errors.…”

Section: Positioning and Navigationmentioning

confidence: 99%

Real-time kinematics for accurate geolocalization of images in telerobotic applications

Saponara

2018

Real-Time Image and Video Processing 2018

Self Cite

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The paper discusses a real-time kinematic system for accurate geolocalization of images, acquired though stereoscopic cameras mounted on a robot, particularly a teleoperated machinery. A teleoperated vehicle may be used to explore an unsafe environment and to acquire in real-time stereoscopic images through two cameras mounted on top of it. Each camera has a visible image sensor. For night operation, or in case temperature is an important parameter, each camera can be equipped with both visible and infrared image sensors. One of the main issues for telerobotic is the real-time and accurate geolocalization of the images, where an accuracy of few cm is required. Such value is much better than that that provided by GPS (Global Positioning System), which is in the order of few meters. To this aim, a real-time kinematic system is proposed which acquires the GPS signal of the vehicle, plus through an RF channel, the GPS signal of a reference base station, geolocalized with a cm-accuracy. To improve the robustness of the differential GPS system, also the data of an Inertial Measurement Unit are used. Another issue addressed in this paper is the real-time implementation of a stereoscopic image-processing algorithm to recover the 3D structure of the scene. The focus is on the 3D reconstruction of the scene to have the reference trajectory for the actuation done by a robotic arm with a proper end-effector.

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“…Particularly, as shown in Fig. 1, the automotive memory circuits work especially in the high-temperature which can be from several tens to a hundred degree Celsius because of their locations close to engine, exhaust etc [2]. Those require high reliable operation and long-life data retention in high-temperature environments.…”

Section: Introductionmentioning

confidence: 99%

A study on memory data retention in high-temperature environments for automotive

Thanh

2020

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The automotive memory devices especially work in high-temperature because they are located close to engine, exhaust units; those require high reliable operation and long-life data retention in high-temperature environments. This paper reports on the investigation of memory data retention of a nano-organic material-based nonvolatile memory in high-temperature environments. The decay of memory state current was theoretically presented as a stretched-exponential law. By fitting the measured currents to the stretched-exponential equation at different temperatures, the activation energy of decay and acceleration factor was deduced, which allows to predict the device performance at high-temperature environment like in a car. The method presented in study can be applied to estimate the memory data retention at high-temperature for other car memories

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Limits of sensing and storage electronic components for high-reliable and safety-critical automotive applications

Cited by 8 publications

References 22 publications

VEHIOT: Design and Evaluation of an IoT Architecture Based on Low-Cost Devices to Be Embedded in Production Vehicles

VEHIOT: Design and Evaluation of an IoT Architecture Based on Low-Cost Devices to Be Embedded in Production Vehicles

Real-time kinematics for accurate geolocalization of images in telerobotic applications

A study on memory data retention in high-temperature environments for automotive

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