ICs & Semiconductors Archives - Page 165 of 227

Distance awareness devices rely on ToF proximity sensors

Tue, Jul 21, 2020

Amsterdam-based start-up, Aura Aware, is using ST’s FlightSense time of flight (ToF) technology in a smart distance-awareness portable device for use at retail counters and check-in desks.

The device displays a green OK signal that changes to red if a person crosses a safe, minimum distance threshold.

The VL53L1X compact ToF proximity and ranging sensor is used in the Aura Aware devices. It has an operating range of up to four metres and very low power consumption. Signal processing is built into the sensor, simplifying design. It also provides features such as crosstalk compensation that maintains measurement accuracy even if the sensor window becomes obscured by foreign material.

ToF sensors transmit photons and then calculate distance to the target based on the time it takes for the reflected photons to be received back by the sensor. Ranging accuracy is unaffected by surface characteristics of the target, such as clothing colour or skin reflectivity, which is a characteristic that makes it particularly suitable for devices designed to help people maintain social distancing.

The sensors can also help users avoid contact with surfaces, including self service touchscreens, smart water taps and pushbutton door openers, located in high-traffic areas. The speed and precision of ToF sensing enable FlightSense sensors to manage basic on/off control as well as to detect and interpret gestures like tapping and swiping for smart touchless human machine interaction.

Another advantage is the linear response when measuring short distances. It allows them to be used inside dispensing machines to detect the level of hand-sanitising liquid or the number of personal protective items such as face masks.

The FlightSense ToF sensors are in production now. Samples are available on request.

STMicroelectronics specialises in semiconductor technologies, including the semiconductor supply chain and manufacturing facilities. The independent device manufacturer works with customers and partners to design and build products, solutions and ecosystems and technologies that enable smarter mobility, more efficient power and energy management, and the wide-scale deployment of the Internet of Things and 5G technology.

http://www.st.com

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LIN interface sensor signal conditioner reduces BoM for EVs/HEVs

Fri, Jul 10, 2020

An integrated LIN interface sensor signal conditioner, the ZSSC4132, is claimed to deliver best in class performance in a compact form factor for us in climate control systems for plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs) and fuel cell electric vehicles (FCEVs).

The automotive pressure sensor has an integrated, certified LIN v2.2a interface and backwards compatibility to LIN v1.3, v2.0 and v2.1. The single-package sensor signal conditioner (SSC) can be configured for nearly all resistive bridge sensors, says Renesas. Slave node position detection feature at the LIN bus allows the SSC to assign a unique ID to the device

It has integrated LIN PHY, AEC-Q100Grade 0 qualifications and is in a small package footprint suitable for automotive sensor modules where space and budgets are limited.

The availability of a LIN-certified sensor enables OEMS to easily and cost-effectively scale HVAC system development for mid-range to high endEVs and HEVs, said Christian Wolf, vice president, Automotive Sensor Business Division at Renesas.

The ZSSC4132 combines 12 to 14bit ADC resolution and analogue front end (AFE) technology for enhanced sensor signal conditioning as well as digital calibration to reduce the noise sensitivity and deliver accuracy to ±0.5 per cent for pressure and temperature readings from -40 to +150 degrees C, claims Renesas. The SSC’s integration reduces overall bill of material (BoM) requirements by minimising the need for external components. Its digital calibration feature allows customers to minimise calibration efforts, further reducing overall system costs, added the company.

It also include over-voltage and reverse-polarity protection circuitry, electromagnetic compatibility and multiple diagnostic features.

The ZSSC4132 is available now in a 4.0 x 4.0mm, 24-lead QFN package. An evaluation kit for the ZSSC4132 is also available.

Renesas Electronics provides embedded design with semiconductors that enable billions of connected, intelligent devices to enhance the way people work and live. The company specialises in microcontrollers, analogy, power and SoC products intended for a broad range of automotive, industrial, infrastructure and IoT applications.

http://renesas.com

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Cohda and u-blox partner for V2X to progress vehicle safety

Fri, Jul 10, 2020

Partners u-blox and Cohda Wireless have announced a vehicle to everything (V2X) solution based on the former’s UBX-P3 DSRC/802.11p V2X chip and the latter’s V2X software stack.

The u-blox UBX-P3 chip enables wireless vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication. It has now been enhanced with Cohda’s hardware-agnostic software applications, providing 360 degree awareness and detecting hidden threats beyond anything a driver or on-board sensors can see, says Cohda. Its V2X software is used in GM and VW production vehicles.

The partnership is expected to be of interest to tier ones, OEMs and road authority suppliers.

According to Cohda’s chief engineer, Fabien Cure, to progress vehicle safety, OEMs need to produce vehicles that have embedded V2X wireless communication technology as standard. “Likewise, cities around the world are preparing for the introduction of wide scale co-operative intelligent transport systems,” he said.

Porting Cohda’s V2X software stack onto the UBX-P3 chip enables a swift integration into automotive platforms, said Herbert Blaser, senior director, Product Center Short Range Radio at u-blox.

Cohda’s software products are applied in more than 60 per cent of all V2X field trials in the world today in compliance with US Federal Communications Commission and European Telecommunications Standards Institute (ETSI) standards.

“When we connect vehicles to each other and to roadside infrastructure, we are creating an intelligent and integrated road transport system that has the potential to reduce road accidents simply because the technology is capable of things humans aren’t,” added Cure.

u‑blox provides positioning and wireless communication in automotive, industrial, and consumer markets to allow people, vehicles and machines determine their precise position and communicate wirelessly over cellular and short range networks. The company has a broad portfolio of chips, modules and secure data services and connectivity.

Cohda Wireless develops connected vehicles and connected autonomous vehicle software. Its technology connects vehicles with infrastructure and pedestrians to make streets, cities and working environments safer, smarter and greener.

Its software enables autonomous vehicles to connect with other vehicles and with smart city infrastructure, from vehicle-to-vehicle, vehicle-to-infrastructure and vehicle-to-pedestrian to avoid accidents, reduce congestion and be more efficient.

Cohda is headquartered in Australia and has offices in Europe, China and the USA.

http://www.u-blox.com

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Cohda and u-blox partner for V2X to progress vehicle safety

Fri, Jul 10, 2020