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The Network on-Chip (NoC) is considered as an emerging technology for distributed embedded systems which is proposed as an alternative interconnection solution in Mutli-Processors System on-Chip (MPSoC). This paper proposes a graphical toll that allows researchers to generate and configure quickly their Network on-Chip in the hope to evaluate easily their contributions in no time. Unlike major existing...
The contract-based paradigm, founded on the use of contracts as formal requirements, allows distributed designers to develop different aspects and components of the overall system in a concurrent but controlled way. In this paper we describe an extension of contract-based design that aims at bridging the gap between requirements, as they are identified in current industrial practice, and contracts...
The Hard Real-Time Ethernet Switch (HaRTES) allows using the same network to handle multiple traffic flows, without compromising the performance of real-time applications. Furthermore, it also provides flexible and on-line scheduling techniques with admission control capabilities, thus real-time communications flows can be added, removed and updated online with strict temporal isolation. However,...
Manual reboot is required in case of switch halt, and in-band management which through Simple Network Management Protocol is disabled. In case of switch failure, the system initiates a self-debugging procedure out-of-band via the console. When the breakdown is beyond the capacity of the self-debugging procedure, the system informs the network center via GPRS. This system has undergone testing in the...
Power management used to be a domain of mobile devices. Since energy bills and the environmental impact of greenhouse gas emissions from power plants are in everybody's mind, energy efficiency is a hot topic for each embedded system design. In the system design flow, trade off's between hardware and software functionality have a major impact on power saving, i.e. data compression, cryptography, highly...
In this paper, the embedded systems and ZigBee technology are used to build a miner's lamp monitoring and control system. This miner's lamp monitoring and control system is composed of a central control station and a number of miner's lamp charging nodes. The central control station of miner's lamp monitoring and control system is constructed with the embedded microcontrollers S3C2410A based on ARM9,...
In case of maritime distress incidents, identifying the location of a victim is the foremost action in search and rescue activities. The existing search and rescue activities have been executed in the possible location identified by mayday of a victim or report from a witness of incidents. However, there are technical difficulties in precisely placing the location of a victim when a quite amount of...
The paper introduces the fault-tolerant technique of chuangxin-1 micro-satellite on-board computer. A fault injection test system is built to verify the fault-tolerant function. The test system is made up of monitor computer, Trace32 ICE, monitor instrument for output, and fault injection instrument. The test case is employed to verify the behavior of fault-tolerance and judge the validity of fault-tolerant...
Here introduces a monitor system technically based on ARM7 embedded micro processor (HMS30C7202) and Micro C/OS-II embedded operating system. The paper provides the scheme of the principal, introduces the connection method of outside signals, tells about how to transplant the Micro C/OS-II to the operating system, and shows the programming emphases and some source code of the majority of the program.
Nowadays, the Network-on-Chip (NoC) paradigm has become more and more popular for building an on-chip communication infrastructure. Like in every traditional network, debugging and performance monitoring are also very important issues in NoC-based systems. Unfortunately, the design process of monitoring hardware is a time consuming activity. The work presented in this paper is based on a high level...
This paper has presented and designed a four-channel video data system of reception, extraction, display and switch based on the DE2-70 development and education board and the development environment of embedded operating system μClinux. First, it received the video data packets, which were 640×480 resolution and RGB format coming from the four cameras in front-end through the router on network, and...
The real-time applications have a growing complexity and size which have to be well controlled. They can be viewed as a set of synchronized tasks, communicating and sharing critical resources. One of the main difficulties in the real-time application design is time constraints meeting. All tasks have to be running before their predefined deadlines. At this level, the integration of real time operating...
Protective measures for server invasions should not solely focus on events before an invasion occur. Recording and monitoring successful server invasions with endless streams of security mechanisms should be employed attentively to reduce the loss of data due to successful intrusion attacks on any system. Overlooking this will inevitably lead to detrimental data loss and stray away from the key issue...
In this paper, we present a low-cost driving assistant system which can provide the surrounding image of a vehicle in a bird's-eye view. By implementing a fast image stitching algorithm on an embedded platform, this system can generate the around-vehicle view in real time from four fisheye cameras mounted around the vehicle. Moreover, we also propose a dynamic boundary determination method to allow...
New tendencies envisage multiprocessor systems-on-chips (MPSoCs) as a promising solution for high performance embedded system. And the key challenge is how to improve the communication efficiency. Network on Chip (NoC) has been considered as a new paradigm in the next generation communication architecture for its scalability and power efficiency. A NoC prototype which consists of 8 ARM compatible...
● A tilable SIMD/MIMD core (potentially superior to SIMD+MIMD) ● Only 10% HW overhead compared with a pure highly parallel SIMD ● Low-cost achieved by trading-off parallelism with flexibility ● Fully adapt to the SIMD/MIMD nature of the target applications ● Envisioned SIMDizing & MIMDizing methods reduce design efforts ● Platform approach facilitates performance scalability & code reuse
Embedded systems have been used in many different areas in which sensitive information communication and storage are needed. This makes security a serious concern in embedded system design, especially in operating system design. At the same time computer virus has been mutating and developing as fast as the upgrading speed of embedded operating system. Even it is possible for some intelligent virus...
The article deals with a design of application for scheduling and process behavior monitoring in operating systems Linux and derived operating systems. Described application gathers data by various remote machines (targets), with Ethernet communication possibility and shows processes and scheduler activities. The monitoring application stores data and allows diagrammatizing target system behavior...
A special round robin (RR) algorithm has been developed to equalize nickel metal hydride (NiMH) battery packs using a new selective equalizer. This algorithm detects batteries either at a very low state of charge (SOC) or at an extremely high SOC. In this system, a set of electromechanical relays are connected in a matrix to route boost current to the weaker batteries. The relay switching is controlled...
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