Energy harvesting switches protect smart homes’ windows

Energy harvesting switches from ZF are able to detect if the windows in smart homes are open or closed. The energy harvesting switch can be integrated into the window handle and can inform of each opening or closing of the window. The mechanical actuation of the RF switch is created by the change of the window handle status. A small voltage is generated which transmits an RF protocol. This information is used to monitor the status of the window.   

The completely battery-free and wireless technology can be realised with different RF protocols such as Bluetooth, EnOcean or customer-specific RF protocols. The system can also be used for several applications within building automation, for example lighting, shutters, doors and windows. 

Despite its compact size and the high energy output, the generator provides a lifetime of one million switching cycles, confirmed ZF. 

ZF will present a window handle demonstration with solutions for status monitoring of windows and doors at Light + Building from 2nd to 6th October 2022 in Frankfurt (Hall 9.0, Stand B54).

ZF is a technology company supplying systems for passenger cars, commercial vehicles and industrial technology, enabling the next generation of mobility.

ZF allows vehicles to see, think and act. In the four technology domains of vehicle motion control, integrated safety, automated driving and electric mobility, ZF offers products and software for established vehicle manufacturers and newly emerging transport and mobility service providers. ZF electrifies a wide range of vehicle types and, with its products, contributes to reducing emissions, protecting the climate and enhancing safe mobility.

The company operates 188 production locations in 31 countries.

http://www.zf.com

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Antenna range supports transport’s increased bandwidth demands

Dedicated antennas optimised for light rail vehicles, such as trams, have been launched by Huber+Suhner. The Sencity Tram rooftop antenna range consists of the Sencity Tram, Sencity Tram MIMO and Sencity Tram Multi multi-application rooftop antennas for cellular, Wi-Fi, Tetra, UHF and GNSS.

“The higher data rates used on-board for passengers and the integration of an increasing number of applications, such as video surveillance, have increased the bandwidth requirements for light rail operators,” explained Michael Thiel, product manager, antennas at Huber+Suhner. The light rail antennas are designed “with the optimal quality, performance, price, certification for the specific application by using specialised materials and constructions for the antennas,” he explained, adding “For each transportation application, we now can offer dedicated solutions”.

The Sencity Tram rooftop antenna provides up to nine radiating elements in one single compact housing. It offers support for a 4×4 cellular, 4×4 Wi-Fi and dual band GNSS option. Tetra bands can also be supported as a separate option. 

The design includes one-hole mounting that allows up to nine radiators to be installed, alternatively, several antennas can be installed apart from each other, to further improve performance, with increased spacing and less interference achieving a maximum MIMO throughput, said the company. 

The Sencity Tram rooftop antenna is certified for railway standards EN 50155, EN 45545-2, NFPA-130 and CE.

Swiss company Huber+Suhner develops and produces components and system solutions for electrical and optical connectivity. The company serves the three main markets industry, communication and transportation with applications from the three technologies of radio frequency, fibre optics and low frequency.

The company has a worldwide production network, subsidiaries and representatives in over 80 countries.

https://www.hubersuhner.com

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32-bit MCU offers functional safety, cybersecurity and AutoSAR compatibility

To support developers’ work to automate and connect end applications, Microchip has introduced the PIC32CM JH microcontroller. The 512kbyte flash, 5.0V, Dual CAN FD device delivers features typically only available on more expensive, higher performance devices, said Microchip. 

Automation and connectivity rely on industry standards related to functional safety and cybersecurity protection to ensure products operate safely and securely. To provide manufacturers with an MCU equipped with components that meet ISO 26262 functional safety and ISO/SAE 21434 cybersecurity engineering standards, the PIC32CM JH is the industry’s first MCU-based on the Arm Cortex-M0+ architecture with AutoSAR support, memory built-in self test (MBIST) and secure boot.

The PIC32CM JH is compatible with AutoSAR, an open software architecture, providing suppliers with the ability to change to lower-level hardware while keeping the original application code for ease of migration. AutoSAR-ready is designed to streamline the development process and reduce overall costs. When using AutoSAR, Microchip offers ASIL B microcontroller abstraction layers (MCALs) for functional safety applications, providing the lower-level hardware interface to the MCU. 

Automotive industry OEMs require both functional safety and cybersecurity protection for many in-vehicle applications including touch buttons and touch wheels, door controls and console controls, and body applications such as advanced driver assistance systems (ADAS). Pairing the PIC32CM JH with one of Microchip’s Trust Anchor TA100 CryptoAutomotive security ICs, complies to ISO/SAE 21434, the new Cybersecurity standard for automotive. The TA100 employs secure hardware-based cryptographic key storage and cryptographic counter measures to eliminate potential back doors linked to software weaknesses. 

Rod Drake vice president of Microchip Technology’s 32-bit MCU business unit, commented: “OEMs and other manufacturers now have the option to use an entry-level Arm Cortex-M0+ based MCU to meet compliance requirements previously only available on higher-end MCUs.”

The secure boot authenticates the code and prevents malicious code from being loaded onto the MCU. Other hardware features on the PIC32CM JH MCU are error correction code (ECC) with fault injection, loopbacks on the communications interfaces, system memory protection unit and MBIST. 

MBIST is the industry standard method of testing embedded memories and can quickly test the integrity of the SRAM to ensure it is functioning properly before the code is run to mitigate failures. To support developers with implementation, the PIC32CM JH has a safety manual, failure modes effects and diagnostic analysis (FMEDA) and diagnostic code targeting to ISO 26262 ASIL B. 

The PIC32CM JH also includes advanced touch with Driven Shield Plus, for noise and water tolerant operation. This feature is necessary for home appliances, industrial and automotive applications requiring touch operation in harsh environments.

Microchip also provides the PIC32CM JH01 Curiosity Pro development kit (Part number EV81X90A) to support the PIC32CM JH MCU.

The PIC32CM JH MCU and EV81X90A are available now.

http://www.microchip.com

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5G front end modules help improve 5G call quality and internet speed

Front end modules and pre-drivers developed by NXP are claimed to improve 5G network coverage and quality. The BTS7202 RX front end modules and BTS6403 / BTS6305 pre-drivers offer high output power, improved linearity and reduced noise.

The RX front end modules (FEM) and BTS6403 / BTS6305 pre-drivers for 5G MIMO (massive multiple-input multiple-output) going up to 20W per channel. The devices were developed and implemented in NXP’s SiGe (silicon germanium) process. They operate with modest current consumption, said NXP, designed to reduce operational costs for mobile network operators (MNOs). They are also claimed to offer improved linearity and reduced noise figure to support better 5G signal quality. 

The BTS7202 RX FEMs and BTS6403/6305 pre-drivers complement NXP’s power amplifier solutions for 32T32R radios. The BTS7202 RX FEMs feature a switch capable of handling up to 20W of power leaking from transmit line-ups, reducing system complexity. The BTS6305 pre-drivers also integrate a balun to reduce costs. 

As 5G networks are adopted, MNOs are increasingly leveraging 32T32R solutions to improve massive MIMO coverage in less dense urban and suburban areas. Utilising 32T32R solutions requires using higher power devices that increase the power level per channel in order to achieve the total power required to ensure strong coverage of the 5G signal. 

Doeco Terpstra, vice president and general manager, smart antenna solutions, radio power, NXP, said: “Our customers recognise that higher power solution offers a way for network operators to address the power needs of 32-antenna solutions without compromising network quality.”

NXP Semiconductors specialises in secure connectivity solutions for embedded applications, in the automotive, industrial and IoT, mobile, and communication infrastructure markets. 

http://www.nxp.com

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