The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A sensor platform is a station equipped with extensive sensor and communication systems, which provide space based detection and alert capabilities. It consists of low-power, embedded computing devices known as motes, which use sensors to collect measurements from the physical world and its inhabitants. In this paper, an ARM-based sensor platform running a Linux Operating System is designed and implemented...
The correctness of a hard real-time system depends upon its ability to meet all its deadlines. Existing real-time systems use either a pure real-time scheduler or a real-time scheduler embedded as a real-time scheduling class in the scheduler of an operating system (OS). Existing implementations of schedulers in multicore systems that support real-time and non-real-time tasks, permit the execution...
This paper describes how to measure parameters including temperature, luminous flux, direct current and voltage and alternating current and voltage. It uses embedded system based on Samsung's ARM920T processor S3C2410X and Linux Operating System. The system can measure the parameters of the time, store them in system memory, and send them to clients through network periodically according to internet...
Reconfigurable embedded systems are capable of changing their functionalities by dynamically adding or removing components. This enables hardware/software architectures to adapt to changes in the system environment at run-time which has been proven to be a very useful technique in multimedia applications. This paper proposes a novel methodology to combine hardware and software to a System-on-Programmable-Chip...
While RAID is the prevailing method of creating reliable secondary storage infrastructure, many users desire more flexibility than offered by current implementations. Traditionally, RAID capabilities have been implemented largely in hardware in order to achieve the best performance possible, but hardware RAID has rigid designs that are costly to change. Software implementations are much more flexible,...
In this paper, the embedded web server, which take Samsung corporation's ARM9-S3C2440AL processor as core, is designed, it's operating system is Linux, the system hardware architecture is presented. Then the process of the Linux operating system being transplated on ARM is introduced. The realization of Boa and dynamic interaction between browser and the embedded system by using CGI are especially...
Aimed at the current situation that the domestic automatic meteorological data acquisition system is almost based the use of foreign products, a design method of multi-channel meteorological data acquisition system was given which based on ARM and CAN Bus. In the design, it fulfills the acquisition requirements of the analog signals, digital signals and intelligent sensor data through a combination...
PCI Express architecture is a widely used communication bus designed for industrial application. Additionally, according to PICMG 3.4 specification it is a part of ATCA architecture. One of the features offered by PCI Express standard is possibility of replacing the system components without shutting down entire system. In this paper, authors present general overview of Hot-Plug implementation in...
Development of real-time applications is usually associated with nonportable code targeted at specific real-time operating systems. The boundary between hardware drivers, system services, and user code is commonly not well defined, making the development in the target host significantly difficult. The Multithreaded Application Real-Time executor (MARTe) is a framework built over a multiplatform library...
This paper presents the development and test of the standard IEC-60870-5 application layer protocol for a Remote Terminal Unit (RTU) based on open hardware and software. The RTU hardware is an embedded system, a SoC-type design using FPGA that has been programmed with the open core LEON with Linux operating system running over it, so both the hardware and IOS are open source. For prototyping the GR-XC3S-1500...
In this paper, a novel approach for digital image chaotic communication via FPGA embedded Ethernet transmission is proposed. Based on Euler algorithm and variable ratio expansion transformation, by C language programming under the Linux operating system, the continuous time 8-scroll Chua system is converted to the discrete sequence used to encrypt and decrypt image on the FPGA-based platform. According...
For the latest development in the direction of embedded system and wireless network, this paper describes wireless image transmission based on the embedded system. It establishes the hardware platform of the embedded system. Microprocessor S3C2440A will be the core, USB camera will be the image acquisition device and wireless network card will be the wireless transmission equipment. The software development...
The development of embedded systems requires the development of increasingly complex software and hardware platforms. Full system simulation makes it possible to run the exact binary embedded software including the operating system on a totally simulated hardware platform. Whereas most simulation environments do not support full system simulation, or do not use any hardware modeling techniques, or...
This paper presents the development and test of the standard IEC-60870-5 application layer protocol over TCP/IP for a remote terminal unit (RTU) based on open hardware and software. The RTU hardware is an embedded system, a SoC-type design using FPGA that has been programmed with the open core LEO/ with Linux operating system running over it, so both the and IOS are open source. For prototyping the...
In this article, the rapid prototyping technology is used to develop a hardware-in-the-loop simulation system for the diesel engine electronic control unit development. The hardware- in-the-loop simulation is based on Linux RTAI system, an open source hard real-time extension of the Linux Operating System, at low costs and within industrial standards. It exploits standard x86-based computing platforms...
Space exploration and mission success are dependent upon assessing mission viability. When a new mission and vehicle are defined, a reasonable facsimile must be built to conduct trade studies. In the case of the Altair lunar lander, we have developed a simulation lab with a specific hardware and software architecture to facilitate trade studies. Our starting point is to design and implement simplified...
Taking an instrument in transformer winding distortion measurement as an example, a solution is proposed based on Samsung's S3C2410 processor and embedded Linux operating system Hardware design is introduced, and software design also is described. The application of the artificial neural network technique to the frequency response analysis method (FRA) which is used to detect transformer winding deformation...
By applying CAN (controller area network) bus , a new type of LAN (local area network) embedded NC system based on ARM9 and motion control chip MCX314As is designed. Through CAN controller MCP2515 and CAN receiver MCP2551 , the LAN NC system is established. In the paper, the function of network system and the architecture of embedded NC system are described in detail. And a hardware platform of embedded...
Zero-copy has been a hot research topic for a long history, which is an underlying technology to support many applications, including multimedia retrieval, datamining, efficient data transferring, and so on. Zero-copy means during message transmission, there is no data copy among memory segments on any network node. When a message is sent out, the data packets in user application space go through...
The paper presents a new software strategy for generating true random numbers, by creating several threads and letting them compete unsynchronized for a shared variable, whose value is read-modified-updated by each thread repeatedly. The generated sequence of random numbers consists of the final values of the shared variable. Our strategy is based on the functionality of the operating system's thread...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.