Abstract: A method for setting up a virtual ad hoc network for transmitting at least one piece of information to a first transportation vehicle as a first network subscriber. The method includes the information being provided based on first data from at least one second network subscriber, and at least one second network subscriber being a second transportation vehicle or an infrastructure component; wherein a motor-vehicle-external, central data processing device receives second data from multiple potential second network subscribers and takes the second data and at least one space-time parameter as a basis for determining the second network subscribers and setting up the virtual ad hoc network with the first transportation vehicle, as the first network subscriber, and the determined second network subscribers, the space-time parameter defining a specific area of relevance that has a predetermined physical and temporal correlation with the current position of the first transportation vehicle.

Abstract: The present disclosure relates to a method, to a computer program comprising instructions, and to a device for environment sensing in a vehicle. For the environment sensing, environment data are recorded by means of at least one vehicle sensor. A prediction is calculated by means of a trained machine learning model based on the recorded environment data, wherein the prediction includes a measure of uncertainty for the prediction. Equally, a deviation value is determined for the recorded environment data that provides a measure of how significantly the recorded environment data deviate from training data for the machine learning model. At least one conformity score is determined based on the measure of uncertainty and the deviation value and then a prediction set is determined based on the at least one determined conformity score. Then, a control signal is generated depending on the determined prediction set.

Abstract: The disclosure relates to a data acquisition device for mobile devices, having a processing unit and a memory unit. The data acquisition unit includes a communications module for transmitting acquired data to a backend server, and a bus interface for receiving messages transmitted via an internal communications bus of the mobile device. The processing unit is configured to use the data received in the messages to form a data series, and to store the data series in the memory unit. In order to reduce the memory required, the processing unit is configured to conduct a preliminary analysis of the stored data series to extract at least one region of interest of the data series and transfer the same to the communications module, which is configured to transmit the at least one extracted region of the data series to the backend server. This procedure is equivalent to data aggregation.

Abstract: A system is provided that includes a plurality of medical treatment units that are respectively associated with a patient, and a plurality of peripheral appliances also respectively associated with a patient. The peripheral appliances transmit control signals and patient signals to the treatment units, while the treatment units receive the control signals and patient signals from the peripheral appliances. The system ensures that the treatment units do not receive patient signals from other peripheral appliances that are not associated with the particular patient. The operating staff allocate a peripheral appliance to a patient and confirm the successful association of the peripheral appliance with the treatment unit allocated to the patient.

Abstract: A method securely opens a door connected to a system and includes a central unit, a mobile terminal, a local control unit and a door opening device that are configured to transmit data. The method includes transmitting a first key to the mobile terminal by the central unit; transmitting the first key to the control unit by the mobile terminal via the door opening device; generating a second key by the control unit depending on the first key; transmitting the second key from the control unit to the mobile terminal via the door opening device; generating a third key by the mobile terminal depending on the second key; transmitting the third key to the central unit by the mobile terminal via the door opening device; and controlling opening of the door depending on the third key by the central unit by transmitting a request to the door opening device.

Abstract: A system is provided that includes a plurality of medical treatment units that are respectively associated with a patient, and a plurality of peripheral appliances also respectively associated with a patient. The peripheral appliances transmit control signals and patient signals to the treatment units, while the treatment units receive the control signals and patient signals from the peripheral appliances. The system ensures that the treatment units do not receive patient signals from other peripheral appliances that are not associated with the particular patient. The operating staff allocate a peripheral appliance to a patient and confirm the successful association of the peripheral appliance with the treatment unit allocated to the patient.

Abstract: A method securely opens a door connected to a system and includes a central unit, a mobile terminal, a local control unit and a door opening device that are configured to transmit data. The method includes transmitting a first key to the mobile terminal by the central unit; transmitting the first key to the control unit by the mobile terminal via the door opening device; generating a second key by the control unit depending on the first key; transmitting the second key from the control unit to the mobile terminal via the door opening device; generating a third key by the mobile terminal depending on the second key; transmitting the third key to the central unit by the mobile terminal via the door opening device; and controlling opening of the door depending on the third key by the central unit by transmitting a request to the door opening device.

Abstract: A device for electromechanically assisted roller burnishing (EMRB) may comprise: a roller burnishing tool with exactly one current-leading roller burnishing element for burnishing a workpiece, wherein the roller burnishing element represents a first electrical contact element for electrically contacting first location of the workpiece, and a second electrical contact element for electrically contacting second location of the workpiece; wherein the first and the second electrical contact elements can be positioned at a settable spatial distance to one another, so that on moving the roller burnishing element on the workpiece, a current path in the workpiece between the first and the second contact elements is always a constant length.

Abstract: A cloud storage system that includes at least one interface that connects the cloud storage system to a data network, at least one non-volatile mass memory, and at least one control unit connected to the interface and to the at least one mass memory and arranged to 1) receive requests from a user with regard to data objects from the interface according to a data transmission protocol, 2) store data objects transmitted according to a write request in the at least one mass memory and 3) retrieve data objects requested according to a read request from the at least one mass memory, wherein a predetermined storage period is assigned to each data object, stored in the at least one non-volatile mass memory by a write request, at the latest upon receiving the write request, and the stored data objects in a predetermined group cannot be changed by subsequent requests according to the protocol via the interface before expiration of the assigned storage period.

Abstract: There is provided a wireless audio transmission system, in particular a wireless microphone system, for wireless audio transmission. The system has at least one wireless microphone unit for detecting audio signals and for wirelessly transmitting the detected audio signals, and a central unit. The central unit has a wireless receiving unit for receiving the wirelessly transmitted audio signals from the wireless microphone units, a pilot tone transmitting unit for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit for receiving and processing a second pilot tone signal. The pilot tone signal has information in respect of the wireless transmission between the microphone units and the central unit.

Abstract: A storage device includes at least one interface to access files stored by the storage device, and at least one mass storage system for non-volatile storage of files; wherein the storage device is configured, on receiving a write command to write a file via the at least one interface, to store metadata relating to the at least one file in an inode associated with the file of the mass storage system, and the stored metadata relating to the file include at least the file name of the file and information relating to a directory in which the file is stored.

Abstract: A method for storing data in which the data to be stored is divided into a plurality of source blocks, each source block subjected to steps including defining a block key for the source block based on a random function, encrypting the source block by utilizing the defined block key, selecting at least one first storage location and one second storage location from a plurality of different available storage locations, storing control data that includes information on the defined block key at the first selected storage location, and storing encrypted data that includes information on the encrypted source block at the second selected storage location.

Abstract: The invention relates to a device and method for electromechanically roller burnishing a surface of a workpiece, in which precisely one current-guiding roller burnishing element for roller burnishing and one separate electrical contact element are used and, as the roller burnishing element is moved on the workpiece surface, said electrical contact element is guided thereafter such that a current path of a constant length is directed through the workpiece as roller burnishing takes place. The invention allows, in a cost-effective manner, a high surface quality to be achieved as well as a precisely-adjustable microstructural alteration to the upper layers of the workpiece.

Abstract: A cloud storage system that includes at least one interface that connects the cloud storage system to a data network, at least one non-volatile mass memory, and at least one control unit connected to the interface and to the at least one mass memory and arranged to 1) receive requests from a user with regard to data objects from the interface according to a data transmission protocol, 2) store data objects transmitted according to a write request in the at least one mass memory and 3) retrieve data objects requested according to a read request from the at least one mass memory, wherein a predetermined storage period is assigned to each data object, stored in the at least one non-volatile mass memory by a write request, at the latest upon receiving the write request, and the stored data objects in a predetermined group cannot be changed by subsequent requests according to the protocol via the interface before expiration of the assigned storage period.

Abstract: The present invention relates to a device and a method for monitoring an access to a patient, in particular a vascular access in extracorporeal blood treatment, in which a patient's blood is withdrawn from the patient via an arterial conduit and is returned to the patient via a venous conduit. In the device according to the present invention and in the method according to the present invention, an alternating voltage signal, relative to a common ground potential, is coupled in and out of the arterial and venous conduits, and the blood flowing through the arterial and venous conduits is at ground potential. In this way, disturbances, which can be attributed particularly to movements of the conduits, are reduced.

Abstract: There is provided a wireless audio transmission system, in particular a wireless microphone system, for wireless audio transmission. The system has at least one wireless microphone unit for detecting audio signals and for wirelessly transmitting the detected audio signals, and a central unit. The central unit has a wireless receiving unit for receiving the wirelessly transmitted audio signals from The wireless microphone units, a pilot tone transmitting unit for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit for receiving and processing a second pilot tone signal. The pilot tone signal has information in respect of the wireless transmission between the microphone units and the central unit.

Abstract: A method for storing data in which the data to be stored is divided into a plurality of source blocks, each source block subjected to steps including defining a block key for the source block based on a random function, encrypting the source block by utilizing the defined block key, selecting at least one first storage location and one second storage location from a plurality of different available storage locations, storing control data that includes information on the defined block key at the first selected storage location, and storing encrypted data that includes information on the encrypted source block at the second selected storage location.

Abstract: A computer security method includes receiving a security alert associated with an electronic attack to at least one computer system of a data network, identifying a first set of business services which may be affected by the electronic attack, estimating, based on an identified first set of potentially affected business services, a first potential cost to a business when the electronic attack is successful, identifying at least one counteraction which may be employed to prevent or mitigate the electronic attack, identifying a second set of business services which may be affected by the at least one counteraction, estimating, based on the identified second set of potentially affected business services, a second potential cost to the business when the counteraction is employed, and comparing the first potential cost and the second potential cost.

Abstract: The present invention relates to a device for creating a vascular access for extracorporeal blood treatment including an electrically conductive puncture needle with a proximal endpiece, a distal endpiece, and a base body made of electrically non-conductive material into which the distal endpiece is inserted. In a properly arranged vascular access, the base body, including an electrically conductive contact element, lies on the skin of the patient, when the puncture needle is located within the vessel of the patient. A disconnection or dislocation is detected by the impedance between the electrically conductive puncture needle and the electrically conductive contact element being measured and compared to a limit value. If the impedance measured is within predetermined limits, this indicates a properly arranged vascular access. A disconnection or dislocation of the puncture needle leads to a strong variation in the impedance.

Abstract: The present invention relates to a device and a method for monitoring an access to a patient, in particular a vascular access in extracorporeal blood treatment, in which a patient's blood is withdrawn from the patient via an arterial conduit and is returned to the patient via a venous conduit. In the device according to the present invention and in the method according to the present invention, an alternating voltage signal, relative to a common ground potential, is coupled in and out of the arterial and venous conduits, and the blood flowing through the arterial and venous conduits is at ground potential. In this way, disturbances, which can be attributed particularly to movements of the conduits, are reduced.