Daimler Chrysler Ag

Eberhard Zeeb

Manfred Rode

Peter Merget

Dieter Seidl

Richard Baur

Joerg Moisel

Franz-Josef Petry

Hans-Peter Huber

Jens Brandes

Dieter Marquardt

Hans-Gerd Seib

Marcus Boesinger

Thomas Kibler

Kurt Pressmar

Jochen Heinrich

The invention relates to a sensor arrangement for seat occupation detection, comprising a fiber-optic sensor network consisting of at least two sensors. The sensor network detest for example local damping modifications in a fiber network that are caused by microbends or modifications of the Bragg wavelength of fiber-optic Bragg grating sensors (FBGS) distributed in the fiber network that are ceased by loads. The optical sensor network is resistant to electromagnetic parasitic inductions. Due to the nature of the optical lass or polymer optical fibers it is for example possible to integrate the network into the textile cover of the seat or into a cushion.

Optical seat occupation sensor network

A method for operating a data network, which includes at least one transmission link, defined by a transmitter and a receiver, wherein in test mode the actual level reserve in the direction of the sensitivity limit, thus between the actual transmitting power of the transmitter and the actual sensitivity limit of the receiver, is determined for at least one transmission link. To better utilize the transmitting capacity of the data network, in test mode, the actual level reserve in the direction of the overload limit, thus between the actual transmitting power of the transmitter and the actual overload limit of the receiver, is also determined for the at least one transmission link.

Method for operating a data network

The invention concerns an optical connector system for data busses, in which optical elements are integrated in the connector and in the connector socket for redirecting the light. With this connector system the light guided along the bus line is decoupled to the optical receiver of a supplemental bus participant and the light transmitted from the supplemental participant is coupled into the bus line. The connector socket is either integrated in the bus line or a bus bridge is subsequently added to the bus line.

Optical connector system for data busses

In a method for determining the failure probability of a data network which has at least one transmitter, a transmission medium, components which attenuate and/or amplify the power, and at least one receiver, the data network is subdivided into individual point-to-point connecting paths, and a failure probability is determined separately for each point-to-point connecting path. The total failure probability of the data network is determined as the sum of the individual probabilities of the individual point-to-point connecting paths, minus the probability that two or more point-to-point connecting paths will fail simultaneously.

Method and apparatus for determining the failure probability of a data network

An optical transmitting/receiving module including a support plate with passive reflectors, one or several optical fibers, a transmitter and a receiver. The support plate has a specular coating and therefore has an opaque surface. The surface of the support plate is structured by means of embossment or stamping. A surface emitting laser diode with a vertical resonator (VCSEL) may be particularly suitable as an optical transmitter in conjunction with a photodiode which serves as the receiver. The transmitting/receiving fibers may include multimode optical fibers.

Optical transmitting/receiving module

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Ulm, Germany

Eberhard Zeeb