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Surveillance camera reference design has auto-focus for object detection

Tue, Aug 04, 2020

Renesas Electronics and Novatek Microelectronics have collaborated on a surveillance camera reference design offering phase-detection auto-focus. It delivers fast and superior object detection and recognition for 4K video security and surveillance applications.

The ultra-high-definition (UHD) surveillance camera reference design addresses the high accuracy object detection and recognition needs of video security and surveillance systems. The reference design includes a camera image sensor (CIS) board with phase-detection auto focus (PDAF), and a high performance image signal processing (ISP) board and auto focus zoom lens software.

The surveillance camera reference design enables 4K resolution, excellent coluor imaging and better recognition accuracy of objects, including small objects in low-light conditions, claims Renesas. Its high speed auto focus operation can also be realized with low-priced lenses for a high performance 4K video security camera reference design and software that helps shorten the development time required in building a camera system with fast auto focus and enhanced imaging performance.

The reference design is built around Renesas’ high performance RAA462113FYL CMOS image sensor and Novatek’s dual core SoC image signal processor. The CIS board includes the RAA462113FYL, DC/DC buck converters, LDOs, motor driver and lens. The ISP board features the SoC and associated signal chain components.

The CMOS image sensor has high sensitivity, low noise, low power with high resolution 8M pixels. The sensor features HDR, PDAF functions and MIPI-CSI2 output, which support 30 frames per second at12-bit digital output.

The signal processor board includes an 800MHz dual core SoC image signal processor with sensor interface and interfaces for display, PHY, Wi-Fi module, GPS, and RS-485. There is also support for RTC, I2C, SPI, GPIO, audio IF, Flash/SD card, HDMI, Ethernet, SDIO, SCI, UART and an SDRAM controller.

Renesas developed the reference design in collaboration with Novatek Microelectronics and it was designed by, and is available from, Systemtec.

http://renesas.com

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32bit microcontroller brings sound to home, offices and industry

Mon, Aug 03, 2020

Microcontrollers from Epson can bring sounds to home appliances and other equipment in a variety of settings. The Arm Cortex-M0+ based S1C31D51 microcontroller has dedicated hardware which can play sound on either a speaker or buzzer.

The S1C31D51 is suitable for a variety of applications and environments. Epson says it can be used to integrate sound into home electronics, remote controllers for home appliances, industrial devices, health and fitness equipment with guidance systems, or alarms in office buildings, shopping complexes, and factories.

An Arm Cortex-M0+ processor integrated with a dedicated hardware processor provides two-channel sound on a single microcontroller chip. There is a variety of speech and audio playback functions, two-channel mixing sound (for playing background music and voice) and voice speed conversion, with a playback speed that is adjustable in five per cent increments between 75 and 125 per cent.

It is possible to output voice guidance sound like error and warning messages on a buzzer instead of a speaker. Epson says it has improved buzzer sound output performance, which can often be poor because of low volume and limited bandwidth, by using a combination of software and hardware support.

The hardware processor plays sound without requiring CPU resources, so these can be allocated to other processes even during sound playback. The use of a high data compression algorithm (16kbits per second at 15.625kHz) reduces the size of sound data memory, making it possible to provide a large amount of sound data and sound data in multiple languages.

Epson`s Voice Creation PC software tool will be provided free of charge to customers. It is a simple development environment for creating sound data for 12 languages without studio recording. Existing WAV data can also be used.

The S1C31D51 has a self- memory check function that can detect failures in built-in RAM, built-in flash, and external QSPI-flash memories without using CPU resources.

There is a variety of ways to play back sound: electromagnetic buzzer, piezoelectric buzzer and a speaker.

The S1C31D51 evaluation board includes the electromagnetic and piezoelectric buzzer by TDK that allows quick audio testing along with the pre-set demonstration.

http://www.epson-electronics.de

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Collaboration bring ‘ready made’ IoT edge gateways for retail and industry

Mon, Aug 03, 2020

In a collaboration to bring hardware and software for IoT edge gateway devices together, Beechwoods Software and GigaPic believe they provide a complete solution for retail and industrial applications.

The IoT Edge software is based on Beechwoods’ Edge Optimised Software (EOS) which is a supported edge computing platform which includes a pre-packaged Linux distribution, integrated edge analytics, dashboard application software and a setup configuration console. There is also support for leading cloud service providers like Amazon IoT Core, Azure IoT Hub, Google IoT Core and IBM Watson IoT for hybrid cloud use case scenarios.

The EOS software has been validated on GigaPic’s industrial motherboard which is powered by AMD Ryzen Embedded V1000 and R1000 Series processors. The processor provide the performance and capabilities required to securely manage data processing, aggregation and analytics at the edge as well as headroom for future proofing, assures GigaPic.

According to Michael Daulerio, Beechwoods’ vice president, marketing and business development: “We’re pleased to join forces with GigaPic to provide a product-ready IoT edge solution based on AMD Ryzen Embedded Processor technology.”

GigaPic is an independent spin-off from GigaByte. It was established in 2018. It has an award-winning Taiwan-based manufacturing facility, synchronising with its R&D department to deliver high quality and reliable products. The company says it aims to offer not only high-quality computing platforms but also world-class service and support.

Beechwoods Software provides software development services and solutions for businesses and OEMs developing embedded and resource-constrained products. Its team provides services across multiple domains: embedded software development, engineering, integration and stack hardening, IoT platform solutions, integration and interoperability, video processing, rendering, and transport, set top box (STB) development lifecycle (inception to customer deployment) and mobile application development (iOS, Android). It also contributes to open source projects and organisations (OCF, RDK, LF Edge).

http://www.gigaipc.com

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MEMS oscillator improves phase noise, halves space needs

Thu, Jul 30, 2020

Anticipating optical and data communications for outdoor 5G deployment, SiTime introduces the SiT9501 differential MEMS oscillator. It is based on SiTime’s third generation MEMS technology.

The SiT9501 oscillator is intended for use in 100 to 800G optical modules. It is supplied in a 2.0 x 1.6mm package to achieve up to 50 per cent space savings, although other industry standard packages. The device’s smaller size allows customers to integrate more features and reduce development time, adds SiTime.

SiTime claims the SiT9501 differential oscillator offers the lowest jitter in the presence of environmental stressors, and the smallest size.

It operates over popular networking frequencies from 25 to 644.53125MHz with

70 femtoseconds of RMS phase jitter. It has a wide operating temperature range of -40 to +105 degrees C.

There are on-chip voltage regulators to filter power-supply noise, to enhance power integrity for module designs, says SiTime, together with FlexSwing driver which reduces power consumption by 30 per cent. It also integrates source-bias LVPECL resistors.

The SiT9501 can be used for high-performance applications, such as data centre switches, telecomms routers, edge servers, artificial intelligence (AI) or graphics cards and storage controllers in addition to optical modules for outdoor 5G deployment.

According to Rajesh Vashist, CEO of SiTime, this third generation MEMS delivers up to seven times better phase noise at half the power. “The SiT9501 is the first of many products to use this technology. . . In space-constrained applications, such as optical modules, the SiT9501 delivers an unmatched combination of higher performance and smaller size,” he said.

Outdoor 5G infrastructure is subject to environmental stressors such as high-temperature, vibration and airflow that can degrade throughput. Increased data rates and potential environmental stressors, contribute to shrink timing margins which requires lower jitter oscillators to ensure the same quality of service.

In optical modules, a third of the PCB area is consumed by the optical sub-assembly, leaving little room for data processing electronics. This also makes a small form factor, a critical factor in oscillator selection.

The SiT9501 oscillator is sampling now. Production quantities are planned to be available in Q1 2021.

https://www.sitime.com

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Surveillance camera reference design has auto-focus for object detection

32bit microcontroller brings sound to home, offices and industry

Collaboration bring ‘ready made’ IoT edge gateways for retail and industry

MEMS oscillator improves phase noise, halves space needs

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