Wideband test suite supports FiRa Consortium PHY conformance

Rohde & Schwarz has added an ultra-wideband (UWB) PHY test suite for the R&S CMP200 radio communication tester. A PHY conformance test tool (PCTT) supports conformance testing of the UWB PHY layer as specified by the FiRa Consortium.

The FiRa Certification Program is intended to support interoperability of UWB-enabled devices on different layers. This includes physical layer conformance testing performed by FiRa Authorized Test Laboratories (ATLs). 

The FiRa-validated UWB PCTT supports further development of an open and standardised UWB ecosystem. UWB-enabled devices can accurately and securely measure the distance and direction of connected devices. These capabilities make UWB a suitable technology for indoor navigation, social distancing, hands-free access, asset tracking, ticket validation, mobile payment and point-and-trigger applications. 

Rohde & Schwarz collaborates with industry partners and organisations like the FiRa Consortium to develop UWB test suites for R&D, certification, chipset characterisation and production. The set of UWB test capabilities of the R&S CMP200 radio communication tester are controlled by the new UWB PHY test suite for test automation to allow flexible pre-conformance testing. It also offers an option to run as a PCTT for FiRa certification.

Christoph Pointner, senior vice president for mobile radio testers at Rohde & Schwarz, said the company is pleased to support the FiRa Consortium in its efforts to establish a strong certification framework for an open UWB ecosystem by providing a validated physical layer test tool.

https://www.rohde-schwarz.com

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Allegro integrates TMR and vertical Hall elements in position sensors for ADAS 

At this week’s Sensors Converge Conference in San Jose, California, USA, Allegro MicroSystems has launched the A33110 and A33115 magnetic position sensors. 

Designed for advanced driver assistance systems (ADAS) applications that require high levels of accuracy and heterogeneous signal redundancy, the sensors combine the company’s vertical Hall technology (VHT) with tunnelling magnetoresistance (TMR) technology in a single sensor package. The angle sensors are claimed to be the first of their kind to feature this technology combination in a single package. VHT and TMR is a heterogeneous redundant sensor for automation in vehicles. 

The A33110 and A33115 sensors provide magnetic angle sensing via both the primary (TMR) and secondary (vertical Hall) transducers, each of which are processed by two independent channels, each with independent regulators and temperature sensors. This configuration enables the high levels of safety and diagnostic coverage needed for automated driving, including on-chip channel-to-channel angle comparison and independent processing in digital signal paths, with no shared digital resources. Advanced algorithms in both sensors deliver the fast response time, independent gain/offset correction, angle calculation, and linearisation capabilities demanded by safety-critical ADAS applications. 

The A33115 also includes a turns counter that tracks motion in 90 degree increments and a low power mode with a user-programmable duty cycle that reduces power consumption when the IC is in a key-off position.

Future automated and autonomous vehicles require advanced electric power steering (EPS) systems with precise motor control capabilities, as well as brake-by-wire or electromechanical braking systems with fast response time. Present day systems commonly use giant magnetoresistance (GMR) or Hall-effect sensors. Compared to the GMR equivalents, Allegro’s TMR on silicon technology offers improved resolution and accuracy, said the company, providing up to eight times greater sensitivity. Measured against traditional Hall-effect sensors, the improvement in resolution is even more pronounced, added the company. 

The safe operation of a vehicle requires the highest level of diagnostic coverage in safety-critical systems. Allegro’s VHT enables accurate safety checks, including low-field and missing-magnet detection. The high-resolution sensors are ASIL D-compliant, with heterogeneous redundancy reducing the likelihood of dependent failures, claimed Allegro.

Car manufacturers and Tier 1 suppliers are looking for position sensors that provide the greatest accuracy and safety while reducing system footprint and cost, said Scott Milne, business line director for position sensors at Allegro. Integrating both vertical Hall and TMR elements in a single package, enables the customers to meet those needs with a sensor that provides high resolution and heterogeneous redundancy along with integrated diagnostics, he added.

http://www.allegromicro.com 

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OTA wireless power charges Bluetooth beacon for smart IoT

Two companies have collaborated to demonstrate wireless charging of a Bluetooth beacon over a distance of 120 feet (36.5m), paving the way for battery- and maintenance-free long range smart IoT sensor systems, said Powercast.

The company specialises in radio frequency (RF) -based over the air (OTA) wireless power technology and has teamed up with InPlay, the company that invented the programming-free, inexpensive, low power Bluetooth sensor, NanoBeacon SoC. 

Powercast’s RF-to-DC power harvesting technology is used to power InPlay’s active Bluetooth sensor IN100, the first of its NanoBeacon SoC family. The battery-free Bluetooth Low Energy sensor beacon can communicate using only micro Watts together enabling battery-free, maintenance-free, long-range smart IoT sensor systems

The resulting long range wireless IoT sensor systems can be deployed for monitoring in the retail, medical, warehousing and industrial IoT markets, Powercast proposed.

Previously documented to power sensors over 80 feet, Powercast’s far-field wireless technology has now powered the NanoBeacon IN100 from 120 feet away from the commercially-available PowerSpot transmitter, enabling a beacon signal every minute. NanoBeacon’s low power design features fast start-up and data transmission using only micro Watts of power. As the NanoBeacon moves farther from Powercast’s RF transmitter, beacon signals become less frequent, and moving it closer allows more frequency if the application requires it.

The new distance achievement is also due to Powercast’s new reference design for its PCC110 Powerharvester chip and companion PCC210 boost converter, which join forces to harvest RF out of the air with up to 75 per cent efficiency.

Powercast and InPlay will demonstrate the low power, battery-free, maintenance-free combination at the Sensors Converge Conference in San Jose, California, USA. The Powercast booth is 641 and InPlay is at booth 333. In both booths, visitors will see  Powercast’s RF-to-DC power harvesting technology powering InPlay’s active Bluetooth sensor IN100. The NanoBeacon SoC can be attached to nearly anything for real-time location monitoring, and paired with sensors to monitor conditions such as light, humidity and temperature, said InPlay.

“Powercast’s and InPlay’s technologies combine to make every microwatt of power count in efficient and green IoT networks powered over the air, now at unprecedented distances, without batteries,” said Charles Goetz, CEO of Powercast. “Together we are advancing the IoT, creating the opportunity for new battery-free sensor types, low-power intelligent endpoints, and smart tracking tags used in retail, asset tracking and industrial sensing.”

InPlay’s NanoBeacon SoC family aims to make smart sensor systems using active RFID technology affordable and easy to deploy, via Bluetooth Low Energy. It can be configured via an app, requires no software programming, transmits data up to 300 feet (91m) and features software-defined radio (SDR) edge networking to connect tens of thousands of IoT devices.

“Maintaining billions of battery-powered IoT devices in the field is an expensive challenge, but with Powercast’s technology, our customers can design battery-free wireless sensors to avoid downtime and maintenance issues,” said Jason Wu, co-founder and CEO of InPlay. He added that the technology is easy and affordable to deploy compared with traditional RFID deployments which normally require technical experts. “Now customers can also eliminate battery maintenance, and monitor more asset conditions when adding sensors to the system,” said Wu.

http://www.powercastco.com

https://inplay-tech.com

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Septentrio GPS/GNSS boards and modules support PX4 Autopilot for UAVs

GNSS boards and modules from Septentrio now support PX4 Autopilot for faster integration of positioning into unmanned aerial vehicles (UAVs) and robots. 

The single and dual antenna AsteRx-m3 and mosaic receivers with PX4 Autopilot enable real time kinematic (RTK) positioning for UAVs. PX4 Autopilot is one of the largest commercially adopted open source navigation control stacks. It is typically used to build and maintain drone hardware and software in a scalable way.  Drones and robots can now implement Septentrio’s positioning receivers known to be secure against GPS jamming and spoofing with built-in AIM+ (Advanced Interference Mitigation technology. 

“Our developer community is looking forward to integrating Septentrio’s secure GNSS positioning technology into UAVs and robots, especially in those applications where reliability matters from mapping to surveillance and delivery,” commented Ramon Roche, general manager, Dronecode Foundation. 

The collaboration with Dronecode is important “because it brings resilient and secure GPS technology to the UAV industry, with tremendous potential in terms of assured positioning and improved safety,” said Gustavo Lopez, market access manager at Septentrio. 

PX4 is supported by Septentrio’s GNSS boards and modules with both single antenna and dual antenna configurations, which offer either heading and pitch or heading and roll angles on top of accurate GNSS positioning. 

The Septentrio PX4 driver is available on the GitHub.

Dronecode is a vendor-neutral foundation for open source drone projects. It is a US-based non-profit under the Linux Foundation and provides open source governance, infrastructure, and services to software and hardware projects. Dronecode works with developers, end-users, and adopting vendors from around the world.

Septentrio is an ISO 9001-certified manufacturer of multi-frequency multi-constellation GPS / GNSS positioning technology for demanding applications. Reliable centimetre-level positioning enables machine automation improving efficiency and safety. Septentrio provides positioning for industrial applications such as robotics, construction, survey and mapping, maritime, logistics and UAVs.

Septentrio has its headquarters in Leuven, Belgium and offices in Los Angeles, Shanghai, Seoul and Yokohama as well as partners around the world. 

http://www.septentrio.com

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