A VHDL-based protocol controller for NCAP processors

Computer Standards & …, 2005

The IEEE 1451 standard supports the structure of distributed data acquisition systems and networks. The key components for such a distributed network are the Network Capable Application Processor (NCAP), Smart Transducer Interface Module (STIM), and the communication interface between them. This paper proposes an approach to improve the NCAP by introducing the functions of on-line dynamic reprogramming of the NCAP and software-programmable interface to support the most widely used communication interfaces between the NCAP and STIM via the network. Experimental research results of the proposed approach applying software-programmable interfaces, application examples of the proposed NCAP, and benefits of the applications are presented in the paper.

2009 IEEE Sensors Applications Symposium, 2009

Sensor networks have been deployed for many applications. The ability for the sensors or actuators to have Transducer Data Sheets will allow the "plug-and-play" of 1451compatible sensors and actuators for different control networks. There has been some development and integration of IEEE 1451.1 Communication, [3], [4]; however, none of these resources provided any form of a testbed where research on IEEE 1451.1 communication could take place. Therefore, an intelligent sensor network testbed has been implemented to perform research and investigation of smart sensors, and the investigation and verification of interfacing options from smart sensors with the sensor networking bus. NCAP-NCAP communication was developed and demonstrated from previous work [7], but the previous work was limited to one-to-one NCAP communication. This paper will present the IEEE 1451.1 NCAP Controller using the LabView 8.6 Programming Language that performs one-to-many communication using the IEEE 1451.1 standard for NCAP communication. The NCAP controller allows operational control functionality and data collection from all of the NCAPs in the network. The NCAP controller will be demonstrated at the SAS-2009 Conference communicating with Mobitrum IEEE 1451 MOBEE NCAPs.

Field-Programmable Logic and …, 2003

This paper describes the implementation of multi-protocol data acquisition system on FPGA. Data acquisition system includes four different bus protocols and storing element (FIFO). FPGA works as a data acquisition system and transfers data from the sensors/ADC to the output device. As FPGA allows each module to work independently. Therefore, we can utilize FPGA as a multi channeled data acquisition system. The four different protocols: Parallel bus protocol, SPI, I 2 C and One-Wire. All modules were designed in VHDL& simulated using

1996

NIST researchers have developed a reference implementation and companion demonstration for this currently defined set of specifications to provide a concrete example of the IEEE P1451, Draft Standard for a Smart Transducer Interface for Sensors and Actuators. The reference implementation includes both hardware and software components that when integrated together yield an environment for illustrating complete P1451 functional aspects and capabilities. This document briefly provides an overview of both parts of the standard and more specifically how they relate to this demonstration. The reference implementation approach used as well as resources required are also discussed to familiarize the reader with the demonstration environment. Specific implementation issues are then discussed concerning the several main areas of the software and hardware components used in this implementation. The first software component, called NCAPTool, written in C++, provides a graphical user interface (GUI)-based Windows environment in which various functional aspects of the standards can be exercised. The second component is a dynamic link library (DLL), also written in C++, that provides an Application Programming Interface (API) to the P1451.1, Draft Standard for a Network Capable Application Processor (NCAP) Information Model. The third component provides the hardware necessary to illustrate a tangible implementation of the P1451.2, Draft Standard for a Transducer to Microprocessor Communication Protocols and Transducer Electronic Data Sheet (TEDS) Formats. All three components together illustrate the integration of both P1451.1 and P1451.2 as well as providing a visual capability for demonstrating the standards' key functional aspects.

IEEE Transactions on Instrumentation and Measurement

IEEE 1451 standard is intended to address the smart transducer interfacing problem in network environments. Usually, proprietary hardware and software are a very efficient solution for implementing the aforementioned normative, although they can become expensive and inflexible. In contrast, the use of open and standardized resources for implementing the IEEE 1451 smart transducer interface standards is proposed in this paper. Tools such as Java and Phyton programming languages, Linux, low-cost programmable logic devices, personal computer resources, and Ethernet architecture were integrated to construct a network node based on the IEEE 1451 standard. The node can be used in systems based on the client-server communication model. The evaluation of the employed tools and experimental results are presented.

Computer Standards & …, 2006

Computer Standards & Interfaces, 2012

IEEE Sensors Journal, 2000

New sensors are required to be small, cheap, and smart. This paper deals with intelligent sensors embedded in a single chip: a VHDL model of an IEEE1451.2 Smart Sensor is proposed to obtain a portable STIM block suitable for customizable compact solutions and allowing low-cost, large-scale production. In order to evaluate performances of the proposed model, working prototypes have been built and some tests have been carried out in a real case (chemical detection sensors). The proposed VHDL model has been compared with traditional, software-based, microcontroller solutions showing that a timing performance improvement greater than 50% can be obtained. Finally, to exemplify effectiveness of a portable VHDL model, a single-chip sensor with USB interface and integrated IEEE1451 structures has been realized and experimentally characterized.

Second IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2003. Proceedings, 2000

There is considered structures of distributive data acquisition systems based on IEEE1451 Standard in this paper. Also there is indicated the disadvantages of the Network Capable Application Processor of this Standard and proposed the general structure of modernized Network Capable Application Processor which is compatible to IEEE1451 Standard. Proposed Processor provide elimination of indicated disadvantages by the dynamic on-line reprogramming and software operating of the most widely used interfaces. There are presented the experimental researches of proposed approach to the implementation of the software operated interfaces. Presented the examples of application of the proposed Network Capable Application Processor and benefits of its application.