Design of a wavelet slave processor for audio and video decompression

2001 ◽  
Author(s):  
Yan Lu ◽  
Debin Zhao ◽  
Yiu K. Chan
Keyword(s):  
Slave Processor

Development of a Master-Slave Architecture Handheld Rotating Machine Fault Diagnosis Instrument

2011 ◽  
Vol 141 ◽  
pp. 244-250
Author(s):  
Jian Wan ◽  
Tai Yong Wang ◽  
Jing Chuan Dong ◽  
Pan Zhang ◽  
Yan Hao
Keyword(s):  
Fault Diagnosis ◽  
Signal Integrity ◽  
Module Design ◽  
Time Performance ◽  
Rotating Machine ◽  
Machine Fault Diagnosis ◽  
Slave Processor ◽  
Design Idea ◽  
Machine Fault ◽  
Communication Methods

To insure that sampling signal integrity, accuracy and real-time performance can adapt to the development of rotating machine fault diagnosis technology, a master-slave architecture handheld rotating machine fault diagnosis instrument was developed based on S3C2410 ARM IC and TMS320VC5509A DSP IC. It provided an effective method for the field monitoring and diagnosis of the large rotating machine. The whole design idea and the structure of the hardware and the software were systematically introduced. The paper focused on the master-slave architecture design of the hardware, the communication methods between the master and the slave processor, and the signal pretreatment module design. Put into practice, the practicability, reliability and stability of the instrument were confirmed.

LonWorks Node Achieving Power Line Communication Based on Slave a Parallel Mode

2011 ◽  
Vol 317-319 ◽  
pp. 1304-1307 ◽  
Author(s):  
Shuai Yang ◽  
Lan Xue
Keyword(s):  
Real Time ◽  
Data Exchange ◽  
Data Transfer ◽  
Data Communication ◽  
Monitoring Network ◽  
Power Line ◽  
Band Frequency ◽  
Good Communication ◽  
Slave Processor ◽  
Parallel Mode

LonWorks technology is a complete development platform used in monitoring network system. In order to improve the real-time of LonWorks node, its master processor AT89C2051 and slave processor MC143150 will realize data exchange each other in Slave A parallel mode. Data transfer mechanism using virtual token passing can solve the issue of master and slave processor seizing the data bus. PLT-22 transceiver featuring a dual carrier and narrow band frequency can complete data communication on LonWorks power line network, the transceiver can overcome the drawbacks of noise sources, attenuation, distortion. Experiments show that LonWorks node achieving power communication based on Slave A parallel mode has good communication and high real-time performance.

LonWorks Node Communicating on Twisted Pairs Based on Virtual Toke

2011 ◽  
Vol 339 ◽  
pp. 76-79
Author(s):  
Lan Xue ◽  
Shuai Yang
Keyword(s):  
Real Time ◽  
Data Exchange ◽  
Data Transfer ◽  
Data Communication ◽  
Monitoring Network ◽  
Twisted Pair ◽  
Good Communication ◽  
Development Platform ◽  
Slave Processor ◽  
Parallel Mode

LonWorks technology is a complete development platform used in monitoring network system. In order to improve the real-time of LonWorks node, its master processor AT89C2051 and slave processor MC143150 will realize data exchange each other in Slave A parallel mode. Data transfer mechanism using virtual token passing can solve the issue of master and slave processor seizing the data bus. FTT-10A transceiver featuring ESD protection can complete data communication on LonWorks twisted pair network. Experiments show that LonWorks node based on Slave A parallel mode communicating on twisted pairs has good communication and high real-time performance.

scholarly journals Implementasi Master-slave pada Embedded system menggunakan komunikasi RS485

ELKHA ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 26
Author(s):  
Agusma Wajiansyah ◽  
Supriadi Supriadi
Keyword(s):  
Embedded System ◽  
Data Transmission ◽  
Data Communication ◽  
Multiprocessor System ◽  
Communication Model ◽  
Test Results ◽  
Slave Processor ◽  
Robot Performance ◽  
Measured Response ◽  
Transmission Models

The use of multiprocessor methods in robotics systems has a significant impact on overall robot performance. The Master-slave method is a model of a multiprocessor system where there are several processors that communicate with each other to carry out the robot's overall function. RS-485 can be used as a communication model in the master-slave method. RS-485 is a development of RS-232 which has the ability to communicate with several nodes. In this research, an experiment will be conducted to implement RS-485 to support the master-slave processor communication. Stages of research began with making system design, which includes the design of embedded hardware systems, the design of data communication protocols on RS-485 networks, software design, followed by implementation and testing. The test is carried out to measure the time response of the device to three data transmission models, namely broadcast, addressing slaves without responding and addressing slaves with responses. The test results carried out on three slaves with a communication speed of 9600 bps. Measured response time on broadcast data transmission is 8ms, and address slave without response is 7ms. Whereas delivery by addressing slaves with responses, shows that the measurement method cannot be applied.

scholarly journals Scalable Hierarchical Parallel Algorithm for the Solution of Super Large-Scale Sparse Linear Equations

2013 ◽  
Vol 80 (2) ◽  
Author(s):  
Ran Xu ◽  
Bin Liu ◽  
Yuan Dong
Keyword(s):  
Degrees Of Freedom ◽  
Large Scale ◽  
Linear Equations ◽  
Element Analysis ◽  
Accuracy Requirement ◽  
Triangle Lattice ◽  
Slave Processor ◽  
Global Equilibrium ◽  
High Scalability ◽  
Local Relaxation

The parallel linear equations solver capable of effectively using 1000+ processors becomes the bottleneck of large-scale implicit engineering simulations. In this paper, we present a new hierarchical parallel master-slave-structural iterative algorithm for the solution of super large-scale sparse linear equations in a distributed memory computer cluster. Through alternatively performing global equilibrium computation and local relaxation, the specific accuracy requirement can be met in a few iterations. Moreover, each set/slave-processor majorly communicates with its nearest neighbors, and the transferring data between sets/slave-processors and the master-processor is always far below the communication between neighboring sets/slave-processors. The corresponding algorithm for implicit finite element analysis has been implemented based on the MPI library, and a super large 2-dimension square system of triangle-lattice truss structure under randomly distributed loadings is simulated with over 1 × 109 degrees of freedom (DOF) on up to 2001 processors of the “Exploration 100” cluster in Tsinghua University. The numerical experiments demonstrate that this algorithm has excellent parallel efficiency and high scalability, and it may have broad applications in other implicit simulations.

ResQuake: A Tele-Operative Rescue Robot

2009 ◽  
Vol 131 (8) ◽  
Author(s):  
S. Ali A. Moosavian ◽  
Arash Kalantari ◽  
Hesam Semsarilar ◽  
Ehsan Aboosaeedan ◽  
Ehsan Mihankhah
Keyword(s):  
Control System ◽  
Dynamic Models ◽  
Design Procedure ◽  
Experimental Tests ◽  
Basic Structure ◽  
Rescue Robot ◽  
Mass Properties ◽  
Manufacturing Procedure ◽  
Slave Processor ◽  
Slip Coefficients

The design procedure of ResQuake as a tele-operative rescue robot and its dynamics analysis, manufacturing procedure, control system, and slip estimation for performance improvement are discussed. First, the general task to be performed by the robot is defined, and various mechanisms to form the basic structure of the robot are discussed. Choosing the appropriate mechanisms, geometric dimensions, and mass properties are detailed to develop kinematic and dynamic models for the system. Next, the strength of each component is analyzed to finalize its shape, and the mechanism models are presented. Then, the control system is briefly described, which includes the operator’s PC as the master processor, and the laptop installed on the robot as the slave processor. Finally, slip coefficients of tracks are identified and validated by experimental tests to improve the system tracking performance. ResQuake has participated with distinction in several rescue robot leagues.

The roving slave processor

1976 ◽  
Vol 1 (2) ◽  
pp. 79-84 ◽  
Author(s):  
John Brignell ◽  
Dick Comley ◽  
Dick Young
Keyword(s):  
Slave Processor

scholarly journals Signal acquisition and processing system based on zynq dual core

2018 ◽  
Vol 246 ◽  
pp. 03001
Author(s):  
Jingjia Tan ◽  
Lesheng He ◽  
Jun Wang
Keyword(s):  
Collaborative Design ◽  
Processing System ◽  
Window Function ◽  
Signal Acquisition ◽  
Shared Resources ◽  
Analog To Digital ◽  
Slave Processor ◽  
The Stability ◽  
Signal Acquisition And Processing ◽  
Dual Core

In order to speed up the acquisition and processing of signal, this paper has developed a signal acquisition and processing system based on zynq platform. Based on the ARM Cortex-A9 dual-core and editable logic unit architecture of Zynq AP SoC platform, this paper implements a fully functional signal acquisition and processing system by software and hardware collaborative design. ARM0 is the main processor that controls system and shared resources. ARM1 is the slave processor. ARM1 is responsible for receiving the data converted by the AD7606 analog-to-digital chip. The data is sent to the Hamming window function IP core created under vivado HLS through the AXI bus. After the data is processed by Hamming window function, it is sent to ARM1 again through AXI bus. OCM acts as the shared memory for ARM0 and ARM1 communication. The Linux system runs on ARM0. The processed data is sent to the upper computer through ethernet through UDP protocol. Utilizing the architecture of the Zynq platform, the system efficiency is improved, and the stability of the system is ensured, so that the FPGA can enter the field of embedded systems.

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