Siemens Aktiengesellschaft

Unify Gmbh Co. Kg

Siemens Enterprise Communications Gmbh & Co. Kg

Atos It Solutions and Services Gmbh

Christoph Gerdes

Alan Southall

Christian Kleegrewe

Kolja Eger

Steffen Rusitschka

Sebnem Rusitschka

Sebastian Dippl

Gerhard Lang

Clemens Hoga

Vivian Prinz

Götz Neumann

Gerd Völksen

Gerd Voelksen

Claus Kern

Christoph Tscheschner

Udo Bartland

Fabian Stäber

A method for providing a service containing facilities in a peer-to-peer network comprising peer devices is provided. The peer devices may be associated with groups, each group being defined by a pre-determined facility. The pre-determined facility may be executed by each peer device associated with a respective group, and a selected peer device of a group executes the respective facility. A sequence of facilities and specifications to be executed is publicized in the peer-to-peer network, on the peer devices executing the respective facility by a peer device requesting the combined service, and the selection of the selected peer devices is carried out according to the publicized sequence and the publicized specifications.

Method for providing composed services in a peer-to-peer network

In a method for controlling the electrical power consumption of a plurality of power consumers in a power grid, the power consumers represent network nodes of a communication network made of a plurality of network nodes, in which the power consumers communicate with each other. Each of the network nodes estimates the total power consumption of the network nodes based on the exchange of information with one other network node. Each network node having an additional power demand which increases a required amount of power, compares the total power consumption estimated by the network node plus the required amount of power to a predefined total power demand of the network nodes and initiates a delivery of the required amount of power from a power provider when the estimated total power demand thereof plus the required amount of power is less than the predefined total power demand by a threshold value.

Method for computer-aided control of the electrical power consumption of a plurality of power consumers in an electrical power grid

A distributed system having a plurality of nodes, wherein the system comprises a set of index nodes for providing a searchable index which comprises metadata for locating data in the system, the set of index nodes is divided into read zones comprising a group of index nodes containing the complete searchable index, and the read zones are subdivided in write zones, each write zone comprising at least one index node containing a partition of said searchable index; and includes a master index node maintaining an index structure of said searchable index by collecting from each index node measures of the current read and write throughput of the respective index node dependent on a current load of the respective index node, where the master index node re-configures the read zones and the corresponding write zones in response to the measured read and write throughputs and the measured loads of the index nodes.

Distributed system

A method for operating a dezentralized communication network with network nodes is provided. The method is based on protocols in conventional peer-to-peer networks. The method provides rapid searching of resources whereby each network node manages a table containing information regarding all the other network nodes, such that a network that contains the resource is immediately retrieved among the table entries. Furthermore, the table contains device names of technical components on which the network nodes are mapped, so that a technical component is directly addressed also via its device name without use of the search process.

Method for operating a distributed communications network

In a method for the management of tasks in a decentralized data network with a plurality of nodes for carrying out the tasks, resources are distributed based on a mapping rule, in particular a hash function. A task that is to be suspended is distributed by dividing the process image of the task into segments and by distributing the segments over the nodes using the mapping rule. Thus, a distributed swap space is created so that tasks can also be carried out on nodes whose swap space is not sufficient on its own. The method can be used in embedded systems with a limited storage capacity and/or in a voltage distribution system, wherein the nodes are, for example, switching units in the voltage distribution system. The method can also be used in any other technical systems such as, for example, a power generation system, an automation system and the like.

Method for the management of tasks in a decentralized data network

A method for detecting errors in a networked embedded system having a multiplicity of components. Error and/or diagnostic data which are relevant to a component are stored in a set of further components of the networked embedded system and are determined if necessary (for example if a disturbance, error or failure occurs). This method is used, in particular, to find error and/or diagnostic data relating to a failed component of a networked embedded system.

Error detection in a networked embedded system

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Munich, Germany

Christoph Gerdes