From specification to management of composite object behavior

2002 ◽  
Author(s):  
M. Magnan ◽  
S. Vauttier ◽  
C. Oussalah
Keyword(s):  
Composite Object ◽  
Object Behavior

scholarly journals A Lightweight Motional Object Behavior Prediction System Harnessing Deep Learning Technology for Embedded ADAS Applications

Electronics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 692
Author(s):  
Wen-Chia Tsai ◽  
Jhih-Sheng Lai ◽  
Kuan-Chou Chen ◽  
Vinay M.Shivanna ◽  
Jiun-In Guo
Keyword(s):  
Embedded System ◽  
Moving Objects ◽  
Object Localization ◽  
Crossing Over ◽  
Learning Technology ◽  
Prediction System ◽  
Behavior Prediction ◽  
Detection Model ◽  
Pedestrian Crossing ◽  
Object Behavior

This paper proposes a lightweight moving object prediction system to detect and recognize pedestrian crossings, vehicles cutting-in, and vehicles ahead applying emergency brakes based on a 3D Convolution network for behavior prediction. The proposed design significantly improves the performance of the conventional 3D convolution network (C3D) adapted to predict the behaviors employing behavior recognition network capable of performing object localization, which is pivotal in detecting the numerous moving objects’ behaviors, combining and verifying the detected objects with the results of the YOLO v3 detection model with that of the proposed C3D model. Since the proposed system is a lightweight CNN model requiring far lesser parameters, it can be efficiently realized on an embedded system for real-time applications. The proposed lightweight C3D model achieves 10 frames per second (FPS) on a NVIDIA Jetson AGX Xavier and yields over 92.8% accuracy in recognizing pedestrian crossing, over 94.3% accuracy in detecting vehicle cutting-in behavior, and over 95% accuracy for vehicles applying emergency brakes.

Noncontacting Vibration Measurement Using a Massless Interferometric Accelerometer

1995 ◽  
Author(s):  
Keyu Li
Keyword(s):  
Elevated Temperatures ◽  
Laser Light ◽  
Vibration Measurement ◽  
Object Surface ◽  
Out Of Plane ◽  
Plates And Shells ◽  
Fringe Patterns ◽  
Hostile Environments ◽  
Derivatives Of ◽  
Object Behavior

Abstract An interferometric strain measurement technique is extended to vibration measurements. The technique is based on two micro-indentations placed on an object surface using a combination of diffraction and interference of laser light. Relative displacements between the two indentations and derivatives of in-plane and out-of-plane vibrational displacements are measured by analyzing the phase shift of the interference fringe patterns. The technique can be used to study bending stress and deflection problems in vibrational beams, plates and shells. The displacement derivatives are measured in real time, from which time derivatives or the velocity and acceleration of the displacement derivative as well as vibrational frequency can be determined. The technique has advantages over an accelerometer in that it is noncontacting and does not require attachment of the transducer to the object which could alter the object behavior. In addition, it has many desirable features such as being extremely compact, massless, and applicable to hostile environments such as those associated with production and elevated temperatures.

scholarly journals FORMALIZATION OF OBJECT BEHAVIOR AND INTERACTIONS FROM UML MODELS

2001 ◽  
Vol 11 (06) ◽  
pp. 643-673 ◽  
Author(s):  
JOHN ANIL SALDHANA ◽  
SOL M. SHATZ ◽  
ZHAOXIA HU
Keyword(s):  
Petri Net ◽  
System Level ◽  
Simulation Techniques ◽  
Industry Standard ◽  
Automated Processing ◽  
Language Needs ◽  
Object Models ◽  
Collaboration Diagram ◽  
Object Behavior

UML, being the industry standard as a common OO modeling language, needs a well-defined semantic base for its notation. Formalization of the graphical notation enables automated processing and analysis tasks. This paper describes a methodology for synthesis of a Petri net model from UML diagrams. The approach is based on deriving Object Net Models from UML statechart diagrams and connecting these object models based on UML collaboration diagram information. The resulting system-level Petri net model can be used as a foundation for formal Petri net analysis and simulation techniques. The methodology is illustrated on some small examples and a larger case study. The case study reveals some unexpected invalid system-state situations.

scholarly journals Logical-probabilistic assessment of the occurrence of destruction during intersystem interactions in the electrical system of the seaport

2021 ◽  
Vol 2061 (1) ◽  
pp. 012131
Author(s):  
O N Litskevich ◽  
A P Litskevich
Keyword(s):  
Technological Process ◽  
Power Supply ◽  
Physical Nature ◽  
Electrical Equipment ◽  
Technical Condition ◽  
Power Line ◽  
Electrical System ◽  
Cable Line ◽  
Composite Object ◽  
Electrical Wear

Abstract This article solves the problem of a quantitative assessment of the occurrence of destruction in the intersystem interactions of the transport system and the electrical system of the seaport, in the conditions of the technological process in the seaport, which indicates its significant impact on the electrical system, as a result of which the reliability of the berthing power line is significantly reduced. The intersystem interactions that occur during the implementation of the technological process, as experience shows, are the causes of critical situations that occur at the border of areas of different physical nature, and the consequences are recorded, in the case under consideration, in the electrical system. A mathematical model describing intersystem destruction in quantitative form is presented in this paper using a logical-probabilistic model that reflects internal and external relationships. In the object under study, the destructive cause (collision) and the consequence (accumulation of electrical damage in the insulation of the cable line) are in the same object (the mooring power supply unit), and this is limited to the effects of intersystem destruction. In such a statement, the object of power supply of the technological process and equipment is considered as a composite object containing a cable line and an electric contact column. The problem being formulated is an important and relevant scientific task, which includes not only the question of identifying the causes of increased electrical wear of the power line, but also the development of methods for obtaining quantitative results, and in practical terms also involves the diagnosis of the technical condition of electrical equipment and timely preventive maintenance.

The First Quarantine: How the Plague Became a Political Disease

2021 ◽  
Vol 31 (1) ◽  
pp. 127-142
Keyword(s):  
Medical Treatment ◽  
Everyday Life ◽  
18Th Century ◽  
The State ◽  
Point Of View ◽  
Composite Object ◽  
The Past ◽  
Moral Assessment ◽  
The Government ◽  
Modern Form

The great plague of 1665-1666 is one of the starting points for the birth of biopolitics in its modern form. The quarantine measures introduced by the government have been considered effective from the medical point of view since the middle of the 18th century. However, many of those contemporary with the plague were convinced that the state was only worsening matters for London’s inhabitants. The author examines why the plague elicited such an ambivalent response in England and how the disease stopped being a composite object and turned into a “comfortable, domesticated” concept. The article investigates why the moral assessment of those measures has become so different over the past hundred years and shows how the quarantine in London influenced the “hygienic revolution.” Apart from its historical interest, this case is a suitable topic for the use of STS methodology because it illustrates the impossibility providing a complete description of the quarantine process and subsequent medical treatment in terms of a conflict between different actors. In order to understand why these measures have subsequently been perceived in this fashion, the author applies the concept of Lovecraftian horror, which offers a way to describe the situation of “collisions” with the plague. By describing how biopolitics released the moral tension built up by the co-existence of different interpretations of the causes of the epidemic, the author reconstructs the retrospective creation of the myth about the success of the quarantine. He contrasts the logic of “multiplicity” with the unifying descriptions and shows the kind of problems a “blurred” ontology can bring on during a crisis in everyday life. This leads to a discussion of the difficulty of holding onto unstable objects that have the potential for liberation from the logic of paternalistic care.

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