Launchpad: GNSS antennas, gyroscopes, lidars
A round-up of the latest products in the GNSS and inertial positioning industry from the June 2020 issue of GPS World magazine.
Compact antenna tests for mobile deployments
The ZonuSkyShot is designed for quick testing during the critical installation phase of an antenna in a new location or when integrating small cells. The compact tester is designed for the integration of a Zeno GPS solution, but works as a neutral test device. SkyShot is a compact GPS receiver that detects the presence of a GPS signal, which is displayed on the LED on the top. The receiver can be accessed through the USB port on the base unit so that the user can view the satellites available using the app supplied with the system and available on the Optical Zonu website. The receiver can track up to 16 satellites at the same time while it searches for new ones. For this reason, a problem can be found and mitigated when a GPS antenna is installed rather than when hardware is later integrated. The closing of projects can be indicated by screenshots of the satellite visibility via the micro-USB port of a laptop.
Optical Zonu, optical Zonu.com
Seamless installation on leading police sport utility vehicles for 2020
The Trooper TRP-20INT antenna platform supports the high speed requirements of complex RF communications systems used for critical communications in FirstNet’s public safety and intelligent transportation systems. The antennas have two 5G elements that are compatible with cellular routers that support frequencies from 600 MHz to 6 GHz. PCTEL’s proprietary multi-GNSS high rejection technology is included for high precision tracking and asset management.
Reduces RF interference
The GPS interference suppression unit QR-100 L1 / L2 mitigates RF interference or spurious signals using a spatial domain of an antenna array reception pattern. Three passive antennas of the customer’s choice can be connected to the QR-100 unit via integrated SMA connectors. The standard configuration of the device (no interfering signal present) has a 120-degree phase gradient between the antenna elements in order to maximize reception of right-radical polarized GPS signals (RHCP). With this function, the device can be connected to either RHCP antennas or linearly polarized antennas. The standard configuration of the device is designed for connection to passive GPS antennas.
Quantum Reversal, quantumreversal.com
Two and three axes for use in harsh environments.
Inertial Labs’ TAG-200 2-axis and 3-axis TAG-200 gyroscopes are designed for electro-optic systems, gimbals, line of sight, and pan and tilt platforms for stabilization and alignment applications. The TAG-200 and TAG-300 use powerful tactical MEMS sensitive elements to perform complex tasks that require precise stabilization of various platforms. Developed for use in harsh environments, the gyroscopes can withstand extreme shocks and vibrations according to MIL-STD-810 mobile ground use. They are fully digitized, contain built-in test functions and have no moving parts. The gyroscopes include low noise, low latency, high bandwidth, high data rate, low bias drift, low VRE, high MTBF and are ITAR free. They are factory-calibrated over the operating temperature range and are checked for quality assurance and quality conformity and supplied with individual calibration and acceptance test certificates.
Inertial Labs, inertiallabs.com
Surveying & mapping
Version 2 of the software adds features
Earthworks Grade Control Platform Version 2.0 offers enhancements that enable faster ROI, increase productivity, and reduce operator training time. The horizontal steering control for bulldozers controls the machine automatically in such a way that it follows any horizontal orientation such as curbs, breaklines, lane center line or slopes without the operator’s assistance. Augmented Reality for excavators enables users to understand 3D models, cut / fill information, slope data and other bench and reference points on the display in the cabin in context without having to interpret complex 2D plans or missions. A new mastless motor grader configuration gives the operator an improved range of motion for the paddles and enables machine control in applications where this was not possible before. Trimble Loadrite integrated payload management displays grade control and accurate payload data on one screen. This increases the productivity and efficiency of mass transportation by preventing undercharging and improves safety by preventing overcharging. Trimble Earthworks is now also available for compact sorting accessories with two GNSS, single GNSS and total station guidance options. The Earthworks Assistant app provides access to Earthworks learning material and documentation, giving operators a shorter learning curve and less downtime.
New function for automatic excavator
With the addition of advanced tilt and turn functions, automatic excavator operators can easily slew or tilt the bucket with automatic boom controls for faster, more efficient excavation. When excavators are in situations like the top of the slope, have a long incline and are not completely perpendicular, the added feature makes it easier to position the cutting edge of the bucket on the surface. The operator can dig faster and move the excavator less often with less wear on the chassis. This is also beneficial when navigating manholes, trenches, and tight spaces.
For autonomous driving L3 / L4
The Horizon is a high-performance lidar sensor for autonomous driving at levels 3 and 4. It has a remote detection range of up to 260 meters, high-density point clouds and is so small that it can be easily embedded in vehicles. The Tele-15 has achieved a reliable detection range of up to 500 meters and offers improved safety for high-speed autonomous vehicles. Both the Horizon and Tele-15 high-performance lidar sensors incorporate a new scanning method that provides improved detection performance at a low cost.
Livox Technology, www.livoxtech.com
1.3 ° / h IMU sensor for motor vehicles
The IMU383ZA is a high-precision, triple redundant inertial measurement unit (IMU) for guidance and navigation solutions in autonomous machines and vehicles. It integrates triple redundant 3-axis accelerometers and gyroscope sensors with a microelectromechanical system (MEMS). The IMU383ZA is pin-compatible with the IMU381ZA and offers a high output of 1.3 ° / h, 0.08 ° / root-h. The miniature module is factory calibrated over the industrial temperature range of -40 ° C to + 85 ° C to achieve constant performance in extreme operating environments for a variety of applications.