A Novel Synchronous Scheduling Service for CORBA-RT Applications

Calvo, Isidro; Almeida, Luís; Noguero, Adrian

doi:10.1109/isorc.2007.8

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…This section describes the fundamentals of the Flexible Time-Triggered CORBA (FTT-CORBA) middleware [12,13,14]. The service assumes an underlying network infrastructure capable of doing physical multicast like Ethernet or IEEE802.11.…”

Section: Middleware Architecture Descriptionmentioning

confidence: 99%

“…Moreover, most of the concepts developed in this work can be easily adapted to other middleware technologies, such as ICE or DDS, since the approaches followed by these solutions are, in essence, similar to those used in CORBA. More specifically, this work presents a solution integrated within the FTT-CORBA service [12,13,14]. FTT-CORBA is a middleware architecture aimed at the synchronization of the task activations, wrapped as CORBA methods, in a distributed system.…”

Section: Introductionmentioning

confidence: 99%

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A time-triggered data distribution service for FTT-CORBA

Noguero¹,

Calvo

2012

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies &Amp; Factory Automation (ETFA 2012)

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FTT-CORBA is a middleware architecture aimed at synchronizing the task activations of a distributed system according to a plan that may be changed at runtime. In this architecture tasks are wrapped within CORBA methods that are activated by a central node, the Orchestrator, over a LAN. Previous versions of FTT-CORBA focused on CPU-bound applications in which the communication time was neglectable. However, in some cases, this assumption is not valid. This work presents an add-on service, integrated within the FTT-CORBA middleware, aimed at minimizing the interference among task activation and data distribution messages. By using this new service the Orchestrator will be capable of controlling the transmission of data distribution packages from the distributed nodes by dynamically allocating them in specific time slots.

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Section: Middleware Architecture Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A time-triggered data distribution service for FTT-CORBA

Noguero¹,

Calvo

2012

Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies &Amp; Factory Automation (ETFA 2012)

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“…These works vary in vision and scope. For example, references [5] and [6] focus on the timing requirements of a DES, providing a framework able to orchestrate task activations in time and, therefore, allowing DES designers to easily decouple the execution of periodic tasks that make use of the same resources. Other works, such as [7] and [8] implement control loops to change the timing characteristics of the distributed tasks in order to achieve schedulability and improve the overall performance of a DES.…”

Section: Related Workmentioning

confidence: 99%

A Framework with Proactive Nodes for Scheduling and Optimizing Distributed Embedded Systems

Noguero

Calvo

2010

Lecture Notes in Computer Science

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Abstract.A new generation of distributed embedded systems (DES) is coming up in which several heterogeneous networked devices execute distributed applications. Such heterogeneity may apply to size, physical boundaries as well as functional and non-functional requirements. Typically, these systems are immersed in changing environments that produce dynamic requirements to which they must adapt. In this scenario, many complex issues that must be solved arise, such as remote task preemptions, keeping task precedence dependencies, etc. This paper presents a framework aimed at DES in which a central node, the Global Scheduler (GS), orchestrates the execution of all tasks in a DES. The distributed nodes take a proactive role by notifying the GS when they are capable of executing new tasks. The proposed approach requires from the underlying technology support for task migrations and local preemption at the distributed nodes level.

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“…In centralized control, a certain time service software provides synchronization information. For example, [8] defines the standardized time service interfaces present in CORBA and [2] describes yet another time service architecture in CORBA. In this architecture, the Synchronization Scheduler generates a clock event to the Synchronized Clock, which exists in a node, and delivers a clock event to a CORBA object in the node.…”

Section: Distributed Object Technologymentioning

confidence: 99%

Approaches to evaluate performance of MICO as distributed automotive software platform

Abe

Nakamoto

Terada

et al. 2009

2009 International Symposium on Autonomous Decentralized Systems

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The size and complexity of large-scale distributed embedded systems such as automotive and process control have increased recently. Sophisticated systems in distributed systems that are safe and environment friendly require numerous types of sensor data, which are collected from various devices and sent to computers through networks. In order to develop large-scale distributed embedded systems, distributed object technology such as CORBA is widely used In this study, we focus our attention on MICa, an implementation of CORBA; we study the performance of MICa and the overhead of a sample distributed system. MICa can be used for developing an execution environment platform for distributed embedded system software.

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A Novel Synchronous Scheduling Service for CORBA-RT Applications

Cited by 9 publications

References 12 publications

A time-triggered data distribution service for FTT-CORBA

A time-triggered data distribution service for FTT-CORBA

A Framework with Proactive Nodes for Scheduling and Optimizing Distributed Embedded Systems

Approaches to evaluate performance of MICO as distributed automotive software platform

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