Abstract: For load balancing in a large-scale wireless mesh network, a device, a system and a method are provided for controlling data packet transmissions in the wireless mesh network, wherein a time slot is randomly selected within a determined answer interval for transmitting an answer responding to a received data packet.

Abstract: A key generation device (100) configured to generate a public key (126) for use in a public key encryption device and a corresponding private key (114) for use in a private key decryption device, the key generation device comprising a private key generator (110) configured for obtaining in electronic form a private random value (112, s), and generating the private key (114), the private key comprising the private random value (112), and a public key generator (120) configured for obtaining in electronic form a public set of bivariate polynomials (122, fi (,)), computing a public univariate polynomial (124) by summing over univariate polynomials obtained by substituting the private random value (112, s) into the polynomials of the public set (122, fi (s,)), and generating the public key (126), the public key comprising the public univariate polynomial (124) and the public set (122).

Abstract: An electronic random number generating device (100) for generating a sequence of random numbers, the electronic random number generating device comprising an electronic parameter storage (110) configured to store multiple functions and for each function of the multiple functions an associated modulus, not all moduli being equal, and an electronic function evaluation device (120) configured to generate an internal sequence of random numbers, the function evaluation device being configured to generate a next number in the internal sequence of random numbers by for each function of the multiple functions, evaluating the function for a previously generated value in the internal sequence of random numbers modulo the modulus associated with the evaluating function, so obtaining multiple evaluation results, and applying a combination function to the multiple evaluation results to obtain the next number in the internal sequence, and an output (140) configured to generate a next number in the sequence of random number

Abstract: 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.

Abstract: An insect control system has a light source arrangement (10) comprising one or more light sources with tunable spectrum, polarization, intensity and or flickering pattern. The system enables a particular type of insect to be attracted or repelled in a particular time period.

Abstract: This invention relates to a device comprising a routing controller for routing messages to a plurality of node devices of a network, the routing controller comprising at least one global instance enabling the routing of messages to a routing set of node devices, at least one local instance for routing packets to a neighbor node device neighboring the device, wherein the neighbor node device is selected regardless whether the neighbor node device belongs to the routing set of node devices, and wherein the routing controller is configured to use the local instance for routing of multicast messages to the node devices.

Abstract: A cryptographic system (100) is provided for distributing certificates comprising a certificate authority device (110) and multiple network nodes (140, 150, 160). A network node (140) sends a public key to the certificate authority device. The certificate authority device (110) generate a certificate comprising the public key, forms an identifier by applying an identity forming function to the certificate and generates local key material specific for the network node by applying a local key material generation algorithm of an identity based key pre-distribution scheme on the identifier, and sends the local key material encrypted to the network node. The network node may be authenticated implicitly through its access to a shared key obtainable from the local key material.

Abstract: A lighting system for improving the alertness of a person comprising: one or more light sources (101) arranged to emit light into an environment, at least one of the one or more light sources being arranged with a primary function comprising providing illumination into the environment; and a controller (103) configured to cause at least one of the at least one light sources to provide a secondary function of emitting at least a first light pulse (503) having a duration of between 1 ms and 50 ms, wherein there is an idle period (505) lasting at least 0.1 s on either side of the first light pulse.

Abstract: In order to increase transmission reliability and transmission efficiency in the presence of interference at a transmitting or receiving node of a wireless network a device for controlling the node of the wireless network is provided, wherein the node is associated to at least one load unit. The device comprises a control unit that is adapted to adjust a communication mode of the node based on an operation state of the load unit.

Abstract: A system for detecting localized ground position changes makes use of plurality of lighting units, each fixed to the ground. Each lighting unit comprises a positioning system and a transmitter for transmitting positioning information to a remote central processing unit. The positioning information from the plurality of fixed lighting units is processed to identify local ground position changes. The infrastructure of a networked lighting system in this way enables ground information to be determined, for example for detecting ground movement in response to natural events or man-made activities (such as tunneling, building, extraction of natural resources etc.).

Abstract: For improving the protection of a network against denial of service attacks and other hostile attacks, while keeping the operation of the network simple and efficient and considering restricted capacities of single network nodes, a control unit, a system and a method for operating a network with a plurality of nodes are provided, wherein at least one operation parameter of at least one node is adjusted based on a current network phase and a data packet received by the node (10) is processed based on the operation parameter.

Abstract: The invention relates to a method for enabling a controller configured for controlling devices of a first system via a first backend to control devices of a second system via a second backend. The method, performed by the second backend, includes receiving, from the first backend, location information of the controller and credentials of the controller or/and of a user of the controller, receiving, from a source trusted by the second backend, location information of the controller and credentials of the controller or/and of the user, and performing context matching to enable the controller to control the devices of the second system by comparing the location information received from the first backend with the location information received from the source trusted by the second backend and by comparing the credentials received from the first backend with the credentials received from the source trusted by the second backend.

Abstract: The present invention relates to a method for access decision evaluation in a building automation and control system, the method comprising: sending, from an accessing device (10) to an accessed device (20), an access request, sending, from the accessed device (20) to a central decision evaluation apparatus (30), an evaluation request asking if the access request is granted or denied, evaluating, at the central decision evaluation apparatus (30), the evaluation request using one or more central access control policies in order to reach a decision on if the access request is granted or denied, deriving, at the central decision evaluation apparatus (30), the one or more central access control policies that was used for evaluation into a device specific access policy, sending, from the central decision evaluation apparatus (30) to the accessed device (20), the decision and the device specific access policy, and storing, at the accessed device (20), the device specific access policy.

Abstract: The invention relates to a flying device (701) arranged to fly in a space and to present an image in that space, a system comprising multiple flying devices (701) for presenting an image in a space and a method for presenting an image in a space using a flying device (701), wherein the flying device (701) is arranged to fly in the space under control of a control signal, the flying device (701) comprising one or more light units (731) arranged to emit multiple light beams (711, 712, 713) a communication unit arranged to receive the control signal and a processing unit arranged to control, based on the received control signal a position of the flying device and a light output of each of the multiple beams (711, 712, 713).

Abstract: A system for detecting localized ground position changes makes use of plurality of lighting units, each fixed to the ground. Each lighting unit comprises a positioning system and a transmitter for transmitting positioning information to a remote central processing unit. The positioning information from the plurality of fixed lighting units is processed to identify local ground position changes. The infrastructure of a networked lighting system in this way enables ground information to be determined, for example for detecting ground movement in response to natural events or man-made activities (such as tunneling, building, extraction of natural resources etc.).

Abstract: An initiating key-agreement device (100) and a responding key-agreement device (200) are provided, configured to generate a symmetric key shared between them. The devices are configured for generating in electronic form a private random value (112, 212), obtaining in electronic form a public set of bivariate polynomials (122) and computing a univariate polynomial (124, 222) by summing the univariate polynomials obtained by substituting the private random value (112, 212) into the polynomials of the public set (122). The devices are configured to send their computed univariate polynomial to the other device, and to compute or reconstruct the shared symmetric key (214, 312) by substituting its generated private random value (112, 212) in the received univariate polynomial.

Abstract: This invention related to a communication device and a method for operating a communication device comprising a transceiver being adapted to communicate in a communication network, comprising a configuration phase including the step of (a1) the communication device obtaining by means of a first telecommunication mode a selected role profile selected out of a set of role profiles, said selected role profile defining the role of the communication device in the communication network in an operation phase, and an operation phase including the steps of (b1) the communication device disabling or maintaining its transceiver to communicate by means of the first telecommunication mode depending on the selected role profile; (b2) the communication device communicating in the network using a second telecommunication mode.

Abstract: A lighting system for improving the alertness of a person comprising: one or more light sources (101) arranged to emit light into an environment, at least one of the one or more light sources being arranged with a primary function comprising providing illumination into the environment; and a controller (103) configured to cause at least one of the at least one light sources to provide a secondary function of emitting at least a first light pulse (503) having a duration of between 1 ms and 50 ms, wherein there is an idle period (505) lasting at least 0.1 s on either side of the first light pulse.

Abstract: A network device (110) is provided which is configured to determine a shared cryptographic key of key length (b) bits shared with a second network device (120) from a polynomial and an identity number of the second network device. A reduction algorithm is used to evaluate the polynomial in the identity number of the second network device and reduce module a public modulus and modulo a key modulus. The reduction algorithm comprises an iteration over the terms of the polynomial. In at least the iteration which iteration is associated with a particular term of the polynomial are comprised a first and second multiplication. The first multiplication is between the identity number and a least significant part of the coefficient of the particular term obtained from the representation of the polynomial, the least significant part of the coefficient being formed by the key length least significant bits of the coefficient of the particular term.

Abstract: A system 100 for commissioning a lighting device by a wearable device 102 when installing the lighting device is disclosed. The system 100 comprises the wearable device 102 comprising a detection unit 104 arranged for detecting contextual information of the wearable device 102, the contextual information being at least one of an orientation and/or a movement of the wearable device 102. The system 100 further comprises a receiver 106 arranged for receiving an identifier of the lighting device 120. The system 100 further comprises a processor 108 arranged for determining at least one installation characteristic of the lighting device 120 based on the detected contextual information of the wearable device 102, and for linking the at least one installation characteristic to the identifier. The system 100 also comprises a memory 110 arranged for storing the at least one installation characteristic and the identifier.