Abstract: The present invention relates to a method for assigning a network address to a first node in a network comprising a plurality of second nodes, the method comprising the steps of: (a) assigning a stochastic address to the first node, (b) the first node transmitting an announcement message to a first control device, (c) the first control device checking whether the assigned network address is available, and (d) upon detecting that the assigned address is not available, the first control device transmitting a message requesting the change of the assigned address

Abstract: System for configuring and powering a wireless batteryless device, the system comprising: a wireless batteryless device (A) comprising: a built-in harvester (12) for harvesting energy from a first energy source, for example ambient energy, means for communicating wirelessly, and an external device (B) comprising: a second power source (16), means (17) for converting energy supplied by the second power source into energy suitable for being harvested in the harvester of the batteryless device, means (18) for wirelessly supplying the batteryless device with the converted energy via the built-in harvester, and means for communicating with the batteryless device. The invention also relates to an external device therefore, and a method for configuring and powering a batteryless device.

Abstract: The present invention relates to a method for wireless communication in a network comprising a resource-restricted end device (ZBLD), and at least one router device (R5), wherein the method comprises the following steps: the end device (ZBLD) transmitting a data frame to be forwarded to a destination device in the network, —the router device (R5) receiving the data frame, the router device associating a delay to the data frame and scheduling transmission of the frame after this delay, in case the router device listening that the data frame has been forwarded by another router device, cancelling the scheduled transmission of the data frame. The invention also relates to a router device and a network therefor.

Abstract: The present invention relates to method for wireless communicating in a network comprising a resource-constrained end device, and a first router device, wherein the method comprises the following steps:—the end device (ZBLD) sending a trigger for proxy search procedure,—the first router (R1) device receiving the trigger for proxy search procedure, the first router (R1) determining whether it fulfills conditions for acting as a router for the end device, and in case conditions are fulfilled, the first router appointing itself as a proxy router for the end device, for relaying communication between the end device and the rest of the network. The invention also relates to an end device, a router device, and net work therefor.

Abstract: The invention describes a network interface unit (10) for a node (D, D 1, D 2, D 3, D a, D b, D c) in a wireless multi-hop network (WN) comprising a plurality of nodes (D, D 1, D 2, D 3, D a, D b, D c) that can be connected by means of network paths between source nodes and destination nodes, which network interface unit (10) comprises a multiple route request assembly module (11) for assembling a multiple route request message (MREQ) such that the multiple route request message (MREQ) of a source node (D) includes a plurality of addresses (41, 43, 45) for specific multiple destination nodes (D 1, D 2, D 3) to which network paths are to be established. The network interface (10) further comprises a transmit unit (12) for transmitting the message (MREQ) to other nodes (D 1, D 2, D 3, D a, D b, D c) in the wireless multi-hop network (WN).

Abstract: The invention describes a method of establishing a wireless multi-hop network (NW), in particular a ZigBee-type network, comprising a plurality of devices (0, 1, 2, . . . , 96) of a device arrangement (D), in which method devices (1, 2, 3, . . . , 96) establish a physical wireless connection to at least another device (0, 1, 11, 16, 17, 29, 30, 39, 48, 52, 53, 55, 64, 71, 73, 79, 88) of the network (NW) in a self-organizing process. In the self-organizing process a seeking device, intending to join the network, listens for beacon signals emitted by candidate parent devices already in the network comprising a network identifier and a device identifier of the emitting devices.

Abstract: The invention relates to a compiler and a method for compiling control logic for a plurality of devices of a networked control system, particularly to the automated assignment of control logic to devices. The invention provides with a compilation an automatic assignment procedure of an executable runtime code to devices of a networked control system. The assignment process of control logic to the devices may take various optimization criteria into account which include various distribution aspects, e.g. network resources or capabilities, such as available bandwidth or reliability of the network links, and device resources or capabilities, e.g. CPU, memory, power source or sleeping behaviour which may influence the observed behaviour of the devices, e.g. due to transmission delay or data packet loss.

Abstract: The invention relates to a networked control system, comprising a plurality of devices (100a, 100b, 100c), wherein each device (100a, 100b, 100c) is specified by a corresponding device logic and means (332) for collecting the device logics of the plurality of devices (100a, 100b, 100c) and for specifying a runtime behaviour of at least one device (100b) of the plurality of devices (100a, 100b, 100c) based on a device logic corresponding to the at least one device (100b). The networked control system further comprises means (334) for generating at least one device independent control logic program which defines the runtime behaviour of the at least one device (100b) and an apparatus for translating the at least one device independent control logic program into a device specific control logic code which is assigned to a selected device (100c).

Abstract: The invention relates to a networked control system including comprising a resource limited device (102) and an assigned proxy device (104). The resource limited device (102) comprises a device logic (122) for providing a change notification message to the assigned proxy device (104) on a change of a device state of the resource limited device, wherein each device state of the resource limited device (102) is defined by a corresponding state variable and wherein the change notification message comprises a state variable corresponding to an actual device state of there source limited device (102).

Abstract: The invention relates to composing a lighting atmosphere from an abstract description for example a lighting atmosphere specified in XML, wherein the lighting atmosphere is generated by several lighting devices, by automatically rendering the desired lighting atmosphere from the abstract description. The abstract description describes the type of light with certain lighting parameters desired at certain semantic locations at certain semantic times. This abstract atmosphere description is automatically transferred to a specific instance of a lighting system (14, 16, 18). The invention has the main advantage that it allows to create light scenes and lighting atmospheres at a high level of abstraction without requiring the definition of a lighting atmosphere or scene by setting the intensity, color, etc. for single lighting units or devices which can be very time consuming and cumbersome, particularly with large and complex lighting systems comprising many lighting devices.

Abstract: The invention relates to a method for replacing a device in a network comprising a plurality of devices. The method includes a step of storing (132) replicated data of a first device in a storage means, a step of removing (352) the first device from the network, a step of connecting (354) a second device to the network, a step of providing (262) a replacement information comprising the first identifier and a step of providing (272) the replicated data of the first device from the storage means to the second device.

Abstract: The invention relates to a method for assigning addresses to nodes of a communication network tree structure, wherein each node corresponds to a network device of the communication network, comprising a step of determining first tree parameters (Cm, Rm, Lm), a step of assigning node addresses to nodes in a first section of the tree, i.e.

Abstract: A networked control system (100) includes a plurality of devices connected to a network. At least one device (120) has a logical address that includes a device type, a device owner, an intended device function and a device feature and/or a device location in an environment of the device. The control logic for the at least one device (120) is designed and executed using the logical address, whereby the execution is performed by processor (110), either in distributed fashion by an embedded processor (110) of the at least one device (120) or centrally by a central processor (110) connectable to the network (100). A memory (130), which may be centralized and/or distributed, is provided for storing a mapping from the logical address to a physical network address of the device (120).

Abstract: A lighting system with a base station and a plurality of lighting units, as well as a method for controlling a lighting system are described. Each lighting unit (12) has a light source (14), a controller unit (18) and associated configuration data. A receiver (20) receives control commands over a medium shared by the lighting units (12), e.g. wireless. A base station (10) comprises a configuration memory unit (34) to store configuration data. A central processing unit (24) uses a transmitter (38) to transmit control commands to the lighting units (12). The lighting units (12) are addressed using data stored in the configuration memory unit. The lighting units (12) are operated sequentially.