By >Daimaou - G.G-B
STMicroelectronics présente la plus petite et le plus précise solution de localisation au Monde

STMicroelectronics a annoncé aujourd’hui une solution matérielle à destination des applications de localisation avec 10 degrés de liberté (DoF : degrees of freedom). Un ensemble de 3 capteurs MEMS ultra-fins à haute-performance procure des informations précises et complètes sur le mouvement linéaire, angulaire et magnétiques ainsi que sur les mesures d’altitude, permettant une meilleure navigation et une interface utilisateur intelligente pour les téléphones mobiles et autres appareils portables grand public.
En utilisant seulement trois capteurs MEMS de ST – un module de géo-magnétique, un gyroscope et un capteur de pression – un appareil grand public peut avoir une indication complète de son accélération linéaire, sa vitesse angulaire, la gravité terrestre,sa position et son altitude. Avec ces informations, les utilisateurs mobiles seront en mesure d’identifier précisément leur direction et leur localisation et ce dans les trois dimensions, y compris dans des endroits avec peu ou pas de signal GPS, comme à l’intérieur des bâtiments ou en terrain montagneux.
“Multi-sensor capabilities enhance the mobile user experience with previously unseen realism and accuracy in next-generation motion- and location-based applications,” said Benedetto Vigna, Group Vice President and General Manager of ST’s MEMS, Sensors and High Performance Analog Division. “With its formidable arsenal of world-class MEMS components, software, design and manufacturing expertise, ST is leading the way to fusing multiple sensors in mobile phones, navigation systems, and other consumer devices.”
Designed and produced using the same micromachining technology process that the Company has already successfully applied to more than 1.2 billion sensors sold in the market, ST’s MEMS chips boast ultra-small size and minimized current consumption coupled with superior accuracy and reliability. The three-chip 10-DoF sensor solution comprises the following components:
- The LSM303DLHC geo-magnetic module integrates high-resolution, three-axis sensing of linear and magnetic motion in a 3 x 5 x 1mm package, with operating current consumption as low as 110 microamps. The device delivers extremely accurate output across full-scale extended ranges up to ±16g (linear acceleration) and ±8 Gauss (magnetic field), with excellent stability over time and temperature. In addition to that, it comes with a host of advanced features, including 4D/6D orientation detection and two programmable interrupt signals that enable immediate notification of motion detection, free fall and other conditions.
- Housed inside an ultra-small 4 x 4 x 1mm package, the L3G4200D 3-axis digital gyroscope provides state-of–the-art performance in terms of output accuracy and stability over temperature and time. The device couples a 16-bit data output with a wide set of user-programmable full-scale ranges from ±250dps up to ±2000dps. An embedded FIFO (first-in first-out) memory block removes the need for continuous communication of between the sensor and the host processor, decreasing dramatically the overall power consumption.
- ST’s soon-to-be-announced silicon pressure sensor uses an innovative technology to provide extremely high resolution measurements of pressure – and therefore also of altitude – in an ultra-compact and thin 3 x 3 x 1mm package. The device has an operating pressure range of 260 – 1260 millibars, corresponding to the atmospheric pressures between -700 and +10000m relative to sea level, and can detect height variations as small as 0.3 m.
ST’s 10-DoF sensor solution is now available for evaluation, with mass production scheduled for the end of Q3 2011. Unit pricing for the three-chip set is $5.90 for volumes in the range of 100,000 pieces.
To date, ST’s MEMS sensors have enabled motion-activated user interfaces in a number of popular consumer devices, including game consoles, smart phones and remotes. Also, computer manufacturers widely use the Company‘s acceleration sensors for free-fall protection in laptop hard-disk drives. ST shipped its one billionth MEMS sensor in November 2010 and its dedicated 8-inch MEMS fabrication line, which was among the first in the world, currently produces more than two million devices a day.
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gniiiiiiii - [15/05/2013 - 22:28]