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Blackfin

About: Blackfin is a research topic. Over the lifetime, 135 publications have been published within this topic receiving 512 citations.


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Patent
06 May 2015
TL;DR: In this paper, a portable and visual acoustic-magnetic synchronous cable fault fixed-point detector based on a high-performance 32-bit DSP is presented, which is mainly composed of a high performance Blackfin DSP processor of 533MHz and a peripheral circuit thereof, and comprises external circuit systems such as a fully directional high-sensitivity ground penetrating microphone sensor and a conditioning circuit thereof.
Abstract: The invention relates to a portable and visual acoustic-magnetic synchronous cable fault fixed-point detector based on a high-performance 32-bit DSP. The detector is mainly composed of a high-performance Blackfin DSP processor of 533MHz and a peripheral circuit thereof, and comprises external circuit systems such as a fully directional high-sensitivity ground penetrating microphone sensor and a conditioning circuit thereof, a digital audio amplifier and a hi-fi audio scale tone quality output earphone and a TFT true color liquid crustal screen. The empirical mode decomposition filter technical is adopted for the detection data and an intelligent background denoising function is realized. A true fault point within the range from the test point to the cable can be calculated by use of two methods: one is based on the volume of the impact discharge noise, while the other one is based on the time difference of arrival of an acoustical signal and a magnetic field signal simultaneously generated by the fault point at the discharge moment in the sensor. The detector has extremely high calculation accuracy and fast calculation speed, powerful strong electromagnetic interference resistance, multifunctional integration and extremely high integrity.

3 citations

Proceedings ArticleDOI
01 Dec 2015
TL;DR: This study aims to create a vision system for vehicles that would prevent frontal collisions by using an embedded system (Blackfin ADSP 537) that allows stand- alone operation, thus creating a system that works while on the road.
Abstract: This study aims to create a vision system for vehicles that would prevent frontal collisions. The system is more of an aid to the driver, giving notifications whenever there is a possibility of collision. With the use of a camera, this system is able to get series of images that would undergo processes of detection and distance calculations. And by utilizing OpenCV, detection of vehicles through Haar and distance measurement by perspective warping have been possible. Critical distances relative to the current speed of the system's vehicle is the point of comparison that would result to proper notification of Green LED, Red Led or Red LED + buzzer. The On-board Diagnostic 2 terminal of newer vehicles enables input of speed to the system. And overall, the processes happen in an embedded system (Blackfin ADSP 537) that allows stand- alone operation, thus creating a system that works while on the road.

3 citations

Proceedings ArticleDOI
24 Apr 2007
TL;DR: This work deals with face detection with using of directly connected camera to signal processor Blackfin (produced by Analog Devices) and an algorithm of face detection and algorithm for communication between camera and DSP are included.
Abstract: This work deals with face detection with using of directly connected camera to signal processor Blackfin (produced by Analog Devices). This work consists of description of interconnection between monochromatic camera KAC-9618 and DSP processor Blackfin BF-537. An algorithm of face detection and algorithm for communication between camera and DSP are also included. First of them is based on using of backpropagation neural network. Camera is controlled by setting values of its registers via I2C serial bus. In addition, there is an overview of used neural network.

3 citations

01 Jan 2010
TL;DR: This EE-Note details their interface with ADSP-BF52x Blackfin® processors and the approach described in this document also applies to other Blackfin processors.
Abstract: Copyright 2010, Analog Devices, Inc. All rights reserved. Analog Devices assumes no responsibility for customer product design or the use or application of customers’ products or for any infringements of patents or rights of others which may result from Analog Devices assistance. All trademarks and logos are property of their respective holders. Information furnished by Analog Devices applications and development tools engineers is believed to be accurate and reliable, however no responsibility is assumed by Analog Devices regarding technical accuracy and topicality of the content provided in Analog Devices Engineer-to-Engineer Notes. Introduction Secure Digital (SD) memory cards are popular storage devices that see application in a wide range of modern consumer electronic products. This EE-Note details their interface with ADSP-BF52x Blackfin® processors. The approach described in this document also applies to other Blackfin processors. Certain Blackfin processors have on-chip SD support. Refer to the processor selection guide to find out which Blackfin processors support SD natively. The Blackfin processor selection table is available at:

3 citations

Proceedings ArticleDOI
17 Dec 2015
TL;DR: A migration mechanism for tasks running in nodes of a wireless sensor network (WSN) consisting of digital signal processing nodes implemented with Blackfin microcomputers with Micrium μC OS III operating system is presented.
Abstract: This paper presents a migration mechanism for tasks running in nodes of a wireless sensor network (WSN). The WSN is consisted of digital signal processing nodes implemented with Blackfin microcomputers with Micrium µC OS III operating system. The migration mechanism allows load balancing, better scheduling of the tasks and allow cooperative signal processing at the whole network and it is useful in case of the node failures as well. This mechanism uses the Micrium operating system primitives in order to decide when the task migration will be started and to control the whole migration process. The communication network is provided by Lightweight Internet Protocol (LwIP) protocol. A performance evaluation (load balance, migration time and missed deadlines ratio) is performed. The paper demonstrates viable implementation of tasks migration in embedded systems and illustrates a better performance of the load balancing and the tasks scheduling.

3 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20212
20191
20183
20164
20157
20142