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Inertial sensor

Testing and validating ADAS and autonomous vehicle systems

The Vbox 3iS from Racelogic is now available. It is a GNSS-aided inertial navigation system (INS) with a built-in Oled display. It enables testing in areas such as urban canyons, bridges, and tunnels.

(Source: Racelogic)

The GPS/Inertial sensor offers extraordinary precision and accuracy, by combining wheel speed data with a high-grade inertial measurement unit and 100 Hz RTK GNSS receiver. In areas with limited or no satellite signal (such as tunnels or test tracks surrounded by trees), the device allows to continue testing without having to worry about erroneous data.

Designed to be used with existing control systems or data-loggers, the product offers accurate acceleration, speed, position, and attitude data, said the company. It is designed for conducting tests such as performance, braking, ADAS (advanced driver assistance systems), and benchmarking.

For ADAS applications, connecting to another Vbox 3i RTK device enables the Vbox 3iS to act as a moving target and with RTK enabled, is capable of achieving 2 cm accuracy. Available with RTK to give ± 2 cm positional accuracy, the introduced sensor is a companion for steering robots. It is also suitable for use in multi-vehicle, multi-target ADAS testing, with each sensor communicating over a radio link to a Vbox 3i, which is used as the main data-logger.

Due to a 100 Hz multi-constellation GNSS engine and the tracking of both the GPS and Glonass networks of satellites, the Vbox 3iS ensures the accuracy of the data being captured even in restricted sky view conditions, said the company.

The device features the latest multi-constellation, multi-frequency GNSS receiver as well as a high-grade inertial measurement unit and the ability to connect directly to a vehicle's CAN network. Combining wheel-speed data from the CAN network with the inertial data further enhances the position and velocity measurements in areas with poor GNSS. Ideal for testing in tunnels, urban canyons or at test tracks with heavy tree cover, the Vbox 3iS ensures the accuracy of the data being captured, even in restricted sky view conditions and can also fill gaps in GNSS coverage.

In GPS denied environments, such as tunnels and deep urban canyons, combining wheel speed information with the GNSS and inertial data makes an improvement to the accuracy of the estimated speed and position.

In this situation, the product removes the need to fit external wheel speed sensors that are difficult to fit and vulnerable to damage, by using the existing CAN network information from the vehicle. Due to the company’s Vehicle CAN Database, users can download the CAN file for each vehicle they are testing.

cw



Publish date
2019-10-23
Company

Racelogic

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