We address the problem of cooperative transportation of a cable-suspended payload by multiple quadrotors. In previous work, quasi-static models have been used to study this problem. However, these approaches are severely limited because they ignore the payload dynamics, and do not explicitly model the underactuation in the control problem. Thus, there are no guarantees on the payload trajectory...

We propose a novel approach to the three-dimensional reconstruction of flexible cables for applications in factory automation, such as cable handling and connecter insertion using robotic arms avoiding conflicts among multiple cables. The approach is based on motion stereo with a single vision sensor. To solve the stereo correspondence problem efficiently and effectively, feature-point projecti...

RF (Radio Frequency) Fingerprinting for indoor localization using wireless local area networks attracted significant attention throughout the last decade. A severe drawback of this approach however is the laborious effort to calibrate the radio map. Especially in case of environmental changes recalibration becomes necessary. The main focus of our research project WIPoS (Wireless Indoor Position...

Kirby and Lickorish [3] have previously obtained the second result using a different construction. This answers problem 13 in Gordon [2]. Results of Schubert [6] show that the knots constructed are prime. In the second half of this paper we will generalize his results to characterize prime "generalized" cable knots. If JSΓX is a knot in S x B and K2 is a knot in S , we can form the Kx cable of ...

In this paper, we consider a variation of the Euclidean Steiner Tree Problem in which the space underlying the set of nodes has a specified non-uniform cost structure. This problem is significant in many practical situations, such as laying cable networks, where the cost for laying a cable can be highly dependent on the location and the nature of the area through which it is to be laid. We empi...

This paper presents the detailed signal-integrity analysis results of the connector and cable linking the ALICE Time Projection Chamber (TPC) to its Front-End Electronics. The goal was to find a cable design that minimizes the crosstalk (electromagnetic coupling) between the signal lines. Other considerations taken into account were the signal line capacitances and the imposed mechanical constr...

Abstract. Nowadays, high accuracy measurements provided by terrestrial laser scanner and vision sensors allow to collect useful exhaustive information about the conditions of existing structures, detect defects geometry anomalies better understand their mechanical behavior. These avant-garde technologies were found be particularly effective for structural health assessment cable-stayed pedestri...

For the problem of cable damage identification in cable-stayed bridges, we have presented a method for identifying based on deflection monitoring data from small number measurement points. We first describe to reduce analyzed distributional characteristics difference before and after bridges with optimized The derivative is transformed by wavelet transform identify location damaged cable. Then,...

In this paper, we present a cable mechanism which synthesizes a nonlinear rotational spring from a linear spring. The nonlinearity is realized by winding the cable around a spool which has a varying radius. We show that for a given nonlinear torque profile (synthesis objective) there is an explicit geometric expression of the shape of the spool which synthesizes this profile. We present the geo...

A method for robotized cable winding of the Uppsala University Wave Energy Converter generator stator has previously been presented and validated. The purpose of this study is to present and validate further developments to the method: automated stand-alone equipment for the preparation of the winding cables. The cable preparation consists of three parts: feeding the cable from a drum, forming ...