摘要:
The invention relates to an electrical connector (1) for connecting an electrical device to an electrical conductor (3) for powering the electrical device with DC voltage. The electrical connector comprises a diagnostic information providing unit for providing diagnostic information about a connection between the electrical device and the electrical conductor and an indicator for indicating the determined diagnostic information. An installer can therefore readily see whether the electrical connection is correct or not. Accordingly, the installer can modify the electrical connections such that the indicated determined diagnostic information indicates a correct electrical connection. This reduces the likelihood of a shutdown of the powering of the electrical device with DC voltage, after the installation has been completed.
摘要:
The invention relates to a proxy node comprising means for managing a proxy table, a receiver for receiving a message from a first resource restricted device, said message being intended to at least one corresponding destination device, control means for checking whether an entry for the first resource restricted device is included in the set of entries of the proxy table, the set of entries of the proxy table indicating the set of resource-restricted devices the proxy node is in charge of, a transmitter for forwarding the message depending on the result of the proxy table checking, the means for managing the proxy table being arranged for cleaning the proxy table of the entry relative to the resource-restricted device by monitoring the relative usage of the proxy node for forwarding messages for the resource restricted device with the usage of competitor proxy nodes for forwarding messages for the resource restricted device.
摘要:
The invention relates to an overload detection device (1) for detecting an overload condition in a DC system (5) comprising a DC voltage source (4) and several electrical devices (8, 9, 10) electrically connected to the DC voltage source. The overload detection device comprises an overload detection unit for detecting the overload condition and a reducing unit for reducing the power consumed by an electrical device of the several electrical devices, if the overload detection unit detects the overload condition. Since the overload detection device reduces the power consumed by an electrical device of the several electrical devices, if the overload detection unit detects the overload condition, the overload condition may be removed, without requiring manual intervention. This allows for an improved recovery of the DC system.
摘要:
The present invention relates to a very simple and robust wireless batteryless device (100) for harvesting energy. The actuation upon button pressure/release results in a rotation of a first member (1) around its central axis (11) leading to a move of an element (3), which is loosely fixed at the first member (1) from a pivot point (14), and a rotation around the central axis (11) of the second member (2) to which a generator axis of an energy harvester is coupled, the rotation axis of the generator being coincident with the central axis (11). Upon full pressure/release, the element (3) is forced to rotate around the pivot point (14), allowing a vertically raised pin (22) of the second member (2) to disengage a recessed area (31, 32) at each end of a slot (30) of the element (3) and the second member (2) to rotate to its rest position.
摘要:
The present invention relates to an apparatus and method for interpreting control commands received from a control element, wherein the control element sends control commands indicating start of activation (e.g., press operation) and end of activation (e.g., release operation) separately. Two time thresholds provided by respective timers (T1, T2) are used at the controlled device (20), a lower time threshold for determining the short activation and a higher time threshold for determining the long activation; the difference between the two time thresholds indicates a “dead zone” of no control action.
摘要:
The invention relates to an electrical connector for connecting an electrical device to an electrical conductor (3) for powering the electrical device (9) with DC voltage. The electrical connector (1) comprises an arrangement information providing unit for determining arrangement information being information about the arrangement of the electrical connector on the electrical conductor and an indicator (7) for indicating the provided arrangement information Since the arrangement information is provided and indicated, a user like an installer can easily see how the respective electrical connector is arranged on the electrical conductor, in particular, with respect to other electrical connectors. Specifically, if several electrical connectors are present, arrangement information can be provided for the several electrical connectors. This allows the user to easily obtain an overview of components of a DC power distribution system.
摘要:
The present invention relates to several techniques for managing the contents of proxy tables in ways that optimize performance, latency, and reliability for communication networks, while ensuring a certain number of early-acting proxies per restricted device. An entity is allowed to keep a required number of proxies per resource-restricted device by removing or adding proxy table entries. Furthermore, the entity is allowed to keep track of early-acting proxies based on forwarding strategies, reporting strategies and/or polling strategies. Thereby, proxy table entries can be controlled to optimise overall system performance and reliability characteristics.
摘要:
The present invention relates to a method for identifying and/or, authenticating, and/or authorizing a first radio station in a radio network, comprising the steps of (a) at the first radio station, transmitting to a second radio station a first radio station identifier computed from a set of identity parameters based on the identity of the first radio station, comprising at least one identity parameter, (b) at the first radio station, transmitting at least one identity parameter from the set of identity parameters, (c) at the second radio station, comparing an authentication identifier computed on the basis of the transmitted identity parameter to the first radio station identifier for enabling a subsequent communication between the first and second radio stations.
摘要:
The invention relates to a DC power distribution system for distributing DC power from a power supply device (3) to an electrical device (2). The power supply device is operable in a high power mode or in a low power mode for supplying a higher power or a lower power, respectively, to the electrical device via an electrical conductor (4), wherein the electrical device is switchable between a high power mode and a low power mode in which the electrical device consumes more power or less power, respectively. An electrical device control unit (11) controls the mode of the electrical device depending on the power supplied by the power supply device. This automatic control of the electrical device depending on the provided power can lead to a better balance between the power consumption and the power supply and, thus, to an improved efficiency of supplying power to the electrical device.
摘要:
The invention relates to a DC power distribution system for distributing DC power to one or several electrical devices. The system comprises an electrical device (2) for receiving DC power via an electrical conductor (4) from a power supply device (3) with a power supply control unit (5) and for transmitting a signal to the power supply control unit for requesting a lower power or a higher power. The power supply device is operable in a high power mode and in a low power mode, wherein the power supply control unit controls the power mode of the power supply device depending on the received signal. This allows adapting the power supply to the power, which is actually really needed in the DC power distribution system, in a technically relatively simple way. Particularly standby situations can be handled more efficiently.