GPS World

Tag: Teseo III

  • STMicroelectronics introduces automotive-qualified GNSS module

    STMicroelectronics introduces automotive-qualified GNSS module

    Photo: STMicroelectronics
    Photo: STMicroelectronics

    STMicroelectronics has introduced the Teseo-VIC3DA, the latest member of the Teseo module family, designed for vehicle positioning.

    Teseo-VIC3DA combines ST’s high-performing Automotive Teseo III GNSS IC with the automotive 6-axis MEMS inertial measurement unit (IMU) and dead reckoning software to create a convenient, automotive-qualified navigation module. The module enables competitively priced in-car navigation, fleet-management, and insurance-monitoring applications.

    The automotive Teseo III GNSS IC at the heart of the system is proven in high-end systems and is already highly regarded for its accuracy and efficiency. With multi-constellation awareness, Teseo III offers robust positioning capabilities by simultaneously receiving signals from GPS, Galileo, GLONASS, BeiDou and QZSS constellations.

    The ST 6-axis automotive-grade MEMS IC introduces super-high-resolution motion tracking in advanced vehicle navigation and telematics applications.

    With the combination of ST’s Teseo III, IMU and dead reckoning, the Teseo-VIC3DA ensures extremely accurate positioning performance in critical environments such as tunnels, beneath structures such as bridges or multi-level highways, in covered areas such as underground parking lots, and in urban canyons between tall buildings.

    The Teseo-VIC3DA module operates from 3.3V, helping to simplify system integration, and has a standby mode that draws just 17 µA to minimize demand on the vehicle’s electrical supply. Containing a highly accurate integrated temperature compensated crystal oscillator, the module achieves excellent accuracy of 1.5 m circular error probability for typical automotive use cases. In addition, a dedicated real-time clock oscillator helps ensure fast time to first fix.

    Coming with firmware pre-loaded onto built-in flash memory, the Teseo-VIC3DA can be updated with new firmware as necessary using the free Teseo-Suite software. Teseo-VIC3DA can provide up to 30Hz dead-reckoning fix-rate and has very low latency to reduce the UART-channel jitter. Teseo-VIC3DA can autonomously work with and without odometer information.

    The Teseo-VIC3DA is tested and certified by ST according to the EU’s Radio Equipment Directive, applicable ETSI standards, and EN safety standards, helping customers achieve mandatory product-level approvals quickly and efficiently. A standalone, USB-powered evaluation platform, EVB-VIC3DA, is available to jump-start development.

    The Teseo-VIC3DA is in production now and supplied in a 16 x 12.2 x 2.42 mm 24-pin LCC package.

  • GNSS module from STMicroelectronics leverages Teseo III chip

    STMicroelectronics (ST) is making its Teseo III satellite navigation receiver accessible to a wider designer community by introducing the Teseo-LIV3F module, which integrates essential features to speed application development and also adds up to 16 MB of Flash memory for firmware updating or data logging without a backup battery.

    Used by automotive and industrial sectors, ST’s Teseo III multi-constellation receiver combines high accuracy with fast response time and low power consumption, the company said.

    The Teseo-LIV3F module now enables makers and small engineering teams without extensive in-house RF expertise to leverage the Teseo III advantages in creating new products in the industrial and consumer market segments such as vehicle trackers, drones, anti-theft devices and pet locators, and systems for services such as fleet-management, tolling, vehicle sharing or public transportation.

    The 18-pin, 9.7 x 10.1 millimeter module contains the Teseo III receiver with on-chip power management, UART and I2C interfaces, alongside the Flash memory, an ultra-stable temperature-controlled crystal oscillator (TCXO), and 32kHz real-time clock (RTC).

    The documentation and tools delivered with the module contain all the C code needed to drive the module using the STM32 microcontroller, including the use of data-logging, odometer and geofencing to aid development of value-added functionality.

    While simplifying application development, Teseo-LIV3F delivers high performance, including -163 dBm tracking sensitivity and 1.5m positioning accuracy (CEP Circular Error Probability) and low-power operation (17µW in standby mode and 75mW when tracking). FCC and CE certifications streamline product testing and accelerates time to market.

    Multi-constellation flexibility ensures robust, failure-resistant navigation worldwide, with access to the GPS, GLONASS, Galileo and BeiDou constellations, as well as the Pacific-region Quasi-Zenith Satellite System (QZSS).

    The module supports assisted modes — including autonomous ST Assisted GPS (STAGPS) and server-based assisted-GNSS with free server access — to retrieve ephemeris data if satellites are unavailable for fast time to first fix (TTFF). The module also supports standardized augmentation systems to enhance accuracy, including the U.S., European, Japanese/South-East Asia, and Indian Satellite-Based Augmentation Systems (SBAS), and the Radio Technical Commission for Maritime Services (RTCM) differential GPS.

    The Teseo-LIV3F module is available now as an 18-pin LLC device.