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In this article, we discuss rational and trends of Model-Based Safety Assessment of complex systems. We start by explaining why classical modeling methodologies are not sufficient to tackle today's industrial challenges. Then, we sketch the main features of AltaRica 3.0, a high level modeling language which aims at overcoming these difficulties. Finally, we suggest some ideas to better integrate safety...
LIMMS, Laboratory for Integrated Micro Mechatronic Systems, is a joint laboratory between French CNRS and The University of Tokyo with special support from JSPS (Japan Society for the Promotion of Science). CNRS researchers and French postdoctoral fellows supported by JSPS come to LIMMS and perform research with their Japanese counterparts in 16 hosting laboratories. They typically stay around two...
The methods which improve space usage efficiency is important especially for city lives. Development of high-rise buildings and underground are one of the methods. However, those developments just lay out the spaces which are expanded in plane into vertical. Therefore, there are the physical and monetary limitations. Instead of stacking of single function spaces, the spaces which can change its functions...
In Earth orbit, solar power generation is possible free from any absorption or disturbances by the Earth's atmosphere. Therefore, space solar power station is planned for the future. We discuss the assembly work of a large antenna reflector by a robot arm. For the assembly work, positioning of the arm using visual servo to colored markers is proposed. The characteristics of the new image processing...
Safety analysis of mechatronic systems is a time-consuming activity, because of the complexity of these systems that involve different fields of engineering. It is desirable to carry out safety assessment methods as soon as possible in the design process in order to reduce errors, cost and time to market of the system. Our paper addresses this problem by proposing a safety profile that is integrated...
The projector is a projection equipment while the camera is a optical receiver. Hence, the camera can project three dimensional calibration points to an image, but it is difficult that the projector grabs the three dimensional calibration points. Therefore, it is necessary to devise obtaining the calibration points to calibrate the projector.
Reliability is one of the most important parameters of dependability. It is addressed whenever we want reliable, available and safe systems. Indeed, reliability acts on the availability and security of systems. It must be considered throughout the overall life cycle of the product or system (design, manufacturing, operation). The objective of this communication is to build an overall approach of reliability...
One the causes of dysfunction of a mechatronic system can be the evolution of the value of some of its parameters. It is possible to model the behavior which must be performed through the representation of the impulse differential inclusion model. Especially the viability sets are identified in relationship with the reliability properties. A visual analysis process can be then conducted and also quantitative...
Recently, global warming is the serious world problem. To solve this problem, many new vehicles appear today. For exsample, there are electric automobiles and electric motorcycles and so on. These have good environmental performance because of zero emission. However, there have been relatively few researches of Two-Wheel electric motorcycle dynamics. Also, many analysis have not taken the slip ratio...
Network-based control systems are becoming increasingly popular for industrial applications; however, in these systems, it is impossible to transmit a control command to multiple devices at the same time due to network latency. The network latency of each device varies depending on network topology, which makes synchronous control difficult. In order to address this problem, this paper proposes a...
Order picking is the most labor-intensive and costly activities in many warehouses by consuming ca. 60 % of the total operating expenses. Order picking development strategies mostly concentrate on warehouse layout, storage assignment policy, routing, zoning and on batching methods, while the physical parameters of the products - which are hardly ever taken into account - do also have a significant...
Now the class-shape function transformation parameterization method (CST) is a popular method for creating the shape. Disadvantage of the CST method is it hard to design a point close to the design condition and it hard to create the shape for the complicated geometry because it needs to use high order polynomial. This paper deals the multi-segment CST for creating the geometry to reduce the degree...
This paper presents a multi-objective particle swarm optimization with asynchronous update (AS-MOPSO). That is, Pareto front is immediately evaluated whenever a particle in the swarm updates, a subsequent particle in the swarm regulates its position partly based on information up to current iteration, and partially depending on previous message. To evaluate the features of the proposed algorithm,...
Target of this research is that patient can listen to sounds of own internal organs, be interesting in and have active involvement in own medical treatment. However, there is nothing in the world patient can listen to the sound of own internal organs. Any patient will be not able to make out sound of particular organ, using stethoscope. Doctor uses the stethoscope for diagnosis catching weak sound...
This paper presents a target tracking system for a mobile robot in both indoor and outdoor environments. A stereo camera, which is robust to sunlight and illumination changes, is used. Human regions in images are detected from 3D information. Using color information, a target region is discriminated from the detected human regions. Hue and saturation are chosen as features robust to illumination changes...
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