Domain-specific modelling applied to inteegration of smart sensors into an information system

International audience(Kopetz, 1997) stated that a trend in the sensor technology is the development of intelligent sensors also called smart sensors. The development of such sensors do not only rely on the hardware development but also on the software. The later should so meet the requirements on low costs and of quality. This paper presents our approach to model the software of a smart sensor and to generate the code for the embedded real-time application. It will also describe how the use of a domain-specific modelling methodology enabled us to achieve a high level of modularity which will permit to save costs and development time

Smart Sensor interface for sea bottom observatories

In order to be able to use all the marine sensors currently available in the market, a new module has to be built to implement the smart sensor standard IEEE1451[ 1] as well as other services used in marine measurements. The smart module is aimed to be used in ALL observatory configurations: autonomous, cabled and buoybased observatories. This module can also be used in new instrument in other instruments such as Ocean Bottom Seismometers (OBS) [3] or any other instrument where data logging, clock synchronization, and plug and play capabilities are important. Therefore, the power consumption of the smart module has to be minimized for batteries based observatories and autonomous instruments.Peer ReviewedPostprint (published version

Smart sensor interface for sea bottom observatories

In order to be able to use all the marine sensors currently available in the market, a new module has to be built to implement the smart sensor standard IEEE- 1451[1] as well as other services used in marine measurements. The smart module is aimed to be used in ALL observatory configurations: autonomous, cabled and buoybased observatories. This module can also be used for low power data acquisition and control applications in new instrument design such as Ocean Bottom Seismometers (OBS) [3] or any other instrument where data logging, clock synchronization, and plug and play capabilities are important. Therefore, the power consumption of the smart module has to be minimized for batteries based observatories and autonomous instruments.Peer Reviewe

Domain Specific Modelling Applied to Smart Sensors

International audience[1] stated that a trend in the sensor technology is the development of intelligent sensors also called smart sensors. The development of such sensors do not only rely on the hardware development but also on the software. The later should so meet the requirements on low costs and of quality. This paper presents our approach to model the software of a smart sensor and to generate the code for the embedded real-time application. It will also describe how the use of a domain-specific modelling methodology enabled us to achieve a high level of modularity which will permit to save costs and development time

Smart sensor interface for sea bottom observatories

In order to be able to use all the marine sensors currently available in the market, a new module has to be built to implement the smart sensor standard IEEE- 1451[1] as well as other services used in marine measurements. The smart module is aimed to be used in ALL observatory configurations: autonomous, cabled and buoybased observatories. This module can also be used for low power data acquisition and control applications in new instrument design such as Ocean Bottom Seismometers (OBS) [3] or any other instrument where data logging, clock synchronization, and plug and play capabilities are important. Therefore, the power consumption of the smart module has to be minimized for batteries based observatories and autonomous instruments.Peer Reviewe

Smart Sensor interface for sea bottom observatories

In order to be able to use all the marine sensors currently available in the market, a new module has to be built to implement the smart sensor standard IEEE1451[ 1] as well as other services used in marine measurements. The smart module is aimed to be used in ALL observatory configurations: autonomous, cabled and buoybased observatories. This module can also be used in new instrument in other instruments such as Ocean Bottom Seismometers (OBS) [3] or any other instrument where data logging, clock synchronization, and plug and play capabilities are important. Therefore, the power consumption of the smart module has to be minimized for batteries based observatories and autonomous instruments.Peer Reviewe

Smart Sensor interface for sea bottom observatories

In order to be able to use all the marine sensors currently available in the market, a new module has to be built to implement the smart sensor standard IEEE- 1451[1] as well as other services used in marine measurements. The smart module is aimed to be used in ALL observatory configurations: autonomous, cabled and buoybased observatories. This module can also be used for low power data acquisition and control applications in new instrument design such as Ocean Bottom Seismometers (OBS) [3] or any other instrument where data logging, clock synchronization, and plug and play capabilities are important. Therefore, the power consumption of the smart module has to be minimized for batteries based observatories and autonomous instruments.Peer Reviewe

Transient Elastography Accurately Screens for Compensated Advanced Chronic Liver Disease in Patients with Ongoing or Recent Alcohol Withdrawal

International audienceBACKGROUND AND AIMS: Liver stiffness measurement by transient elastography (TE) is a promising method for staging fibrosis in alcohol-related liver disease, but uncertainties remain regarding the influence of alcohol consumption and thus the ideal timing for TE performance. We evaluated the performance of TE compared with liver biopsy to exclude compensated advanced chronic liver disease (cACLD) in patients hospitalized for alcohol detoxification. METHODS: Patients were prospectively recruited at six in-patient addiction centers in France. Eligible patients exhibited increased aspartate-amino-transferases, and no history or signs of overt cirrhosis. TE, histology, and biochemistry measurements were obtained within a median of 6 days after alcohol withdrawal. TE and biochemistry were repeated one and two months later. RESULTS: The study included 259 patients for per-protocol analysis, of whom 45 (17.4%) had cACLD. TE identified patients with high accuracy at inclusion, 1-, and 2-month follow up, with area under curve values of 0.96 [95% confidence interval, CI, 0.94-0.99], 0.96 [95% CI, 0.92-0.99], and 0.93 [95% CI, 0.85-1.00], respectively. In 84% of patients, cACLD was ruled out when liver stiffness was <10 kPa (negative predictive value, 99% [98-100%]) or ruled in when >25 kPa (positive predictive value, 93% [83-102%]). Algorithms based on transaminases and/or bilirubin did not add to diagnostic performance of TE in this period. Among patients with initial liver stiffness of 10-25 kPa, over half of those with no cACLD exhibited liver stiffness of <10 at 1- and 2 month follow-up testing. CONCLUSIONS: Transient elastography performed during the first two months following alcohol cessation is an excellent method for excluding alcohol-related cACLD

[A 1993-1995 epidemiological survey of home parenteral nutrition in approved centers for adults in France]

International audienceOBJECTIVES: A 1993-1995 three year epidemiological survey of home parenteral nutrition was performed through in France in approved centers for adults. METHODS: Data were retrospectively collected each year on a standardized questionnaire focussing on indications and short term outcome. RESULTS: All centers (n = 14) participated in the study and 524 new adult patients were recruited. The overall incidence was unchanged at 3.75 patients/10(6) adults. Indications for AIDS rose (8 to 18%) whereas other indications were stable. Prevalence increased by 19%: 4.40 adults/10(6) patients at 01.01.1996. At six months, the probability to stay on treatment was 19.5% for AIDS and cancer indications but 52% for others, whereas death rates were 59% and 9% respectively. CONCLUSIONS: For both cancer and AIDS indications, short-term treatment was due to a poor prognosis. For other diagnosis, complicated with a short bowel in 51% of cases, prognosis was excellent but associated with treatment dependency. The latter point focuses on the need for additional treatments in irreversible intestinal failure