Value-added services in industrial automation

Hergenhan, André; Weiler, C.; Weiss, K.

doi:10.1007/bfb0053498

Cited by 2 publications

(4 citation statements)

References 5 publications

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“…ASI is a new system which allows for the connection of up to 128 binary actuator and sensor devices with an appropriate control unit via a single bifilar cabel. An additional key feature of this work is the global access to the ASI-Master via the Internet, which leads to value-added services as described in [5]. Currently that project uses the RTOS VxWorks, which is running on SPYDER-CORE-P1.…”

Section: Our Basic Workmentioning

confidence: 99%

“…The embedded C_Server task also has no real-time requirements and transfers commands between a JAVA applet running on the calling client computer and the ASI-Master. For a more detailed description, refer to [5]. Figure 6 shows a timing diagram of the hard real-time tasks, measured with a logic analyzer.…”

Section: Figure 3 Asi Communication Systemmentioning

confidence: 99%

“…Note that this additional feature, which we call valueadded services in the industrial automation [5], can therefore be implemented without increasing the microcontroller performance. It is mainly based on the determination of the best hw/ sw partitioning found through emulation and the exploitation of the FPGA on-chip features.…”

Section: Figure 11 Demonstrator: Industrial Shelf Modelmentioning

confidence: 99%

See 2 more Smart Citations

Exploiting FPGA-features during the emulation of a fast reactive embedded system

Weiss

Steckstor

Koch

1999

Proceedings of the 1999 ACM/SIGDA Seventh International Symposium on Field Programmable Gate Arrays

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This paper presents the emulation of an embedded system with hard real time constraints and response times of about 220~s. We show that for such fast reactive systems, the software overhead of a Real Time Operating System (RTOS) becomes a limiting factor, consuming up to 77% of the total execution performance. We analyze features of different FPGA architectures in order to solve the system performance bottleneck. We show that moving functionality from software to hardware through exploiting the fine grained on-chip SRAM capability of the Xilinx XC4000 architecture, that feature eliminates the RTOS overhead by only a slight increase of about 28% of the used FPGA CLB resources. These investigations have been conducted using our own emulation environment called SPYDER-CORE-Pl.

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Section: Our Basic Workmentioning

confidence: 99%

Section: Figure 3 Asi Communication Systemmentioning

confidence: 99%

Section: Figure 11 Demonstrator: Industrial Shelf Modelmentioning

confidence: 99%

See 1 more Smart Citation

Exploiting FPGA-features during the emulation of a fast reactive embedded system

Weiss

Steckstor

Koch

1999

Proceedings of the 1999 ACM/SIGDA Seventh International Symposium on Field Programmable Gate Arrays

Self Cite

View full text Add to dashboard Cite

show abstract

“…ASI is a new system which allows the connection of up to 128 binary actuator and sensor devices to a suitable control unit via a single bifilar cable. An additional key feature of this work is the global access to the ASI-Master via the Internet, which leads to more valuable services as described in [4]. Currently that project uses the Real-Time Operating System (RTOS) VxWorks, which runs on SPYDER-CORE-P1 [3].…”

Section: Our Basic Workmentioning

confidence: 99%

Performance analysis of a RTOS by emulation of an embedded system

Weiss

Steckstor

Proceedings Tenth IEEE International Workshop on Rapid System Prototyping. Shortening the Path From Specification to Prototype

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This paper analyzes the performance of two different real-time operating systems. Therefore, we used a real benchmark embedded system design with fast external reaction times of about 220µs. We show that for such fast reactive systems, the software overhead of a real-time operating system becomes a limiting factor. We analyze the influence of novel microcontroller features, e.g., different on-chip caches, which tend to accelerate execution, but make it less predictable. These investigations have been conducted using our own emulation environment called SPYDER-CORE-P1.

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Value-added services in industrial automation

Cited by 2 publications

References 5 publications

Exploiting FPGA-features during the emulation of a fast reactive embedded system

Exploiting FPGA-features during the emulation of a fast reactive embedded system

Performance analysis of a RTOS by emulation of an embedded system

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