Abstract:
The invention relates to a dongle (3) for access of guest apparatuses (2) to a wireless home network (1). The dongle (3) comprises a memory and processing unit (33) which is connected to the guest apparatus (2) by means of an antenna (32) as well as a configuration-free interface (31). The invention also relates to a method of connecting guest apparatuses (2) to wireless home networks (1), wherein the access of the guest apparatus (2) is realized via a dongle (3) which is connected to an interface (31) of the guest apparatus (2).
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:
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). The assigned proxy device (104) comprises means (142) for receiving a change notification message from an assigned resource limited device (102), wherein the change notification message comprises a state variable which defines an actual device state of the resource limited device and means (144) for distributing a state variable change notification, comprising the state variable which defines the actual device state of the resource limited device, within the networked control system according to requirements of a control application (162) of the networked control system.
Abstract:
The present invention relates to a method for operating a network comprising communicating devices representing nodes of the network. More precisely, the invention relates to a method for operating a network (1), comprising a node (D1) and a system management device (3), the system management device comprising a root keying material being a set of alpha-secure functions having a degree of complexity of,and the node being provided with a node keying material share of degree of complexity a derived from the root keying material. The method comprises the following steps, upon receipt at the system management device of a request for an external user (4) to gain access to the node (D1): the system management device generates an external user keying material share of degree of complexity a from the root keying material and an access identifier, the system management device generates an access keying material of degree of complexity less than a, from the external user keying material share and an identifier of the node, the system management device provides the external user with the access keying material share and the access identifier, the external user derives a key from the access keying material share, and transmitting this key and the access certificate to the node, the node computes a key from the access identifier and the node keying material share, and the node compares the key transmitted by the external user and the key computed by the node, so as to authenticate the external user.
Abstract:
The invention describes a method of commissioning a device arrangement comprising a number of devices (L1, L2, L3,) communicating with each other over a wireless networked control system (WN). This method comprises the steps of - reading a unique identifier (ID1, ID2, ID3) from an electronic identification tag (T) which is tagged to a device (L1, L2, L3) currently to be installed by means of a reading device (3) carried by an installer who is to install the device (L1, L2, L3), and - compiling an inventory (IV) of the installed devices (L1, L2, L3) using the read unique identifiers (ID1, ID2, ID3), - commissioning of the devices (L1, L2, L3) using the inventory (IV). The invention further describes a commissioning system (100) for commissioning such a device arrangement, a data logger and an installation tool (1) for installing devices (L1, L2, L3,) usable in such a commissioning system (100).
Abstract:
The invention relates to a network with a first node (102) comprising first pre-distributed keying material being assigned to the first node before the first node is connected to the network and a second node (104) comprising second pre- distributed keying material being assigned to the second node before the second node is connected to the network. The first node is configured to establish a secure communication (112) to the second node based on the first and second pre-distributed keying materials, without relying on a trust center (108). Pre-distributed keying materials can be replaced in a secure manner with post-deployed keying materials by the network trust center. Nodes can establish further secure communications based on post-deployed keying materials.
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.