Abstract: A mechanism for lamp to lamp communication within a luminaire. This is achieved by a field controller of a master lamp controlling the magnitude of an electric/magnetic field generated by a field generating element, where a slave lamp detects the electric/magnetic field using a field detection element. One of more properties of the light output by the slave lamp are dependent upon the detected electric/magnetic field, meaning that the master lamp is able to control the operation of the slave lamp.

Abstract: The invention provides a method for sensing a plant-related parameter in a horticulture space (115), wherein (i) a radio transmitter (151) and a radio receiver (152) are arranged such that a radio path (153) between the radio transmitter (151) and the radio receiver (152) passes through at least part of the horticulture space (115), and (ii) the radio receiver (152) is configured in a radio signal receiving relationship with the radio transmitter (151), wherein the method comprises a sensing stage comprising: emitting a radio signal with the radio transmitter (151); detecting the radio signal with the radio receiver (152) and providing a related receiver signal; and determining the plant-related parameter based on the receiver signal.

Abstract: The invention is directed to a network node (100) for communicating in a wireless communication network (150) that comprises an application unit (102) for performing one or more predetermined application functions. The network node comprises an input interface (104) for receiving availability signals (AS) indicative of an availability or non-availability of a respective application control hub for centralized control of data exchange (130) with respect to the respective application function.

Abstract: The invention provides a lighting device for determining and conveying an intelligibility of an audio signal, wherein the audio signal comprises a plurality of occurrences of a repeating audio feature, wherein each occurrence of the repeating audio feature comprises a respective value of an acoustic characteristic, wherein the lighting device comprises: a light source; a microphone for detecting the audio signal; a processor configured to: receive the audio signal from the microphone, determine a baseline value based on said audio signal, determine a positive intelligibility of the audio signal if the last occurrence of the repeating audio feature comprises a respective value of the acoustic characteristic being at least equal to the baseline value, or determine a negative intelligibility of the audio signal if the last occurrence of the repeating audio feature comprises a respective value of the acoustic characteristic being less than the baseline value, and control the light source to convey the determined

Abstract: A system for evaluating a characteristic of a portion of a building space, such as a room, may be provided. The system includes pairs of speakers and microphones associated with detection areas and forming audio multipath transmission channels. The system includes a controller communicatively coupled to the speakers and the microphones. The controller is configured to: (1) select detection areas; (2) activate the microphones corresponding to the pairs associated with the selected detection areas to capture one or more audio samples; (3) select speakers based on a baseline channel response matrix and the activated microphones; (4) transmit command signals to the selected speakers; (5) determine a characteristic channel response matrix based on the audio samples and audio signals corresponding to the command signals; and (6) evaluate the characteristic of the portion of the building space based on the characteristic channel response matrix and the baseline channel response matrix.

Abstract: A system (1) for selecting one or more devices in a wireless network for transmitting, receiving and/or processing a radio frequency signal for presence and/or location detection comprises at least one processor (5) configured to determine a suitability of each of a plurality of devices (11-15) for transmitting, receiving and/or processing a radio frequency signal for presence and/or location detection, select a subset of devices from the plurality of devices based on the suitability determined for each of the plurality of devices, and instruct at least one of the subset of devices to act as a device for transmitting, receiving and/or processing a radio frequency signal for presence and/or location detection.

Abstract: The invention is related to a pair-assignment device (100) comprising a sensing-node position ascertainment unit (102) configured to ascertain position information (P.I.) pertaining to respective positions of external RF-sensing nodes (104,106) with respect to a predefined sensing volume (108) of a RF context-sensing arrangement and a pair-assigning unit (110) configured to assign, using the ascertained position information, at least one transmitter-receiver pair among the individual RF-sensing nodes of the RF context-sensing arrangement to perform a RF context-sensing function, to assign to the RF sensing nodes of the given transmitter-receiver pair a transmitter role (Tx) and a receiver role (Rx), respectively.

Abstract: A controller (1) for performing presence detection with a first sensor system (41,42) and a second sensor system (31-37) is configured to receive sensor signals from the first sensor system and/or the second sensor system. The second sensor system is of a different type than the first sensor system. The controller is further configured to determine which first one or more areas of the plurality of areas are in both the sensor range of the first sensor system and the sensor range of the second sensor system based on the sensor signals and control the second sensor system to perform, with respect to the first one or more areas, a second task other than a first task to be performed by the first sensor system. The first task comprises obtaining sensor data to be used for presence detection in the first one or more areas.

Abstract: The present invention relates to commissioning methods and apparatuses which can be used to provide controlled joining optionally combined with automatic joining in a wireless network with either gateway-based or gateway-free layout. Also, it can be combined with centralized control as well as distributed control.

Abstract: A system for autonomous monitoring and/or optimization of plant (140) growth is provided. The system may include actuation devices configured to interact with an agricultural area (120), image sensors (130) configured to capture images (170) of a plant (140) in the agricultural area (120), and a processor (150) in communication with the image sensors (130) and the actuation devices. The processor (150) may be configured to store, via a memory (160), a first image (170) of the agricultural area (120) captured prior to a first actuation of the actuation devices; and trigger, synchronously with the first actuation, the image sensors (130) to capture a second image (180) of the agricultural area (120).

Abstract: A system (1) for selecting one or more devices in a wireless network for transmitting, receiving and/or processing a radio frequency signal for presence and/or location detection comprises at least one processor (5) configured to determine a suitability of each of a plurality of devices (11-15) for transmitting, receiving and/or processing a radio frequency signal for presence and/or location detection, select a subset of devices from the 5 plurality of devices based on the suitability determined for each of the plurality of devices, and instruct at least one of the subset of devices to act as a device for transmitting, receiving and/or processing a radio frequency signal for presence and/or location detection.

Abstract: A method for selecting a subset of devices from a plurality of devices in a wireless network to perform: a first function comprising transmitting, receiving and/or processing a first radio frequency signal in a first frequency band for detecting atmospheric conditions; and a second function comprising transmitting, receiving and/or processing a second radio frequency signal in a second frequency band, at least partially overlapping with the first frequency band, for performing network communications; wherein the first and the second function are performed during a time period; and wherein the time period comprises a first subset of timeslots and a second subset of timeslots; wherein the method comprises: selecting the subset of devices based on a physical location of the devices relative to an area in which atmospheric conditions are to be monitored; assigning the first subset of timeslots to each of the selected devices to perform the first function, wherein the first subset of timeslots is assigned based on

Abstract: The present invention relates to a Zigbee or other multi-hop network that can become a bottleneck for certain applications, e.g. entertainment streaming to (multiple) areas in the areas (e.g. at home) where hopping is needed. By locally utilizing an temporary gateway (50) being present right in a data-hungry area, the overall performance across the network can be improved. Using this temporary gateway (50), (part of) the data can be routed 5 directly to/from the destination/source nodes (10, 40) thus freeing up capacity in the remainder of the network.

Abstract: A method of detecting atmospheric conditions in an area via a plurality of devices, each arranged for transmitting, receiving, and/or processing radio frequency signals in a predetermined frequency band; wherein the radio frequency signals can be affected by atmospheric conditions; wherein the method comprises the steps of: transmitting, by a first device of the plurality of devices, a first radio frequency signal intended for receipt by a second device of the plurality of devices in order to perform a network communications function between the first and the second device during a time period; receiving, by the second device, the transmitted first radio frequency signal; and processing, by the second device, the received first radio frequency signal in order to perform the network communications function; wherein the method further comprises the steps of: selecting a third device, of the plurality of devices, based on a physical location of the third device relative to the area in which the atmospheric condi

Abstract: The present invention relates to selecting a communication technology (34, 36) in a radio frequency (RF)-based sensing system (100) with one or more nodes (26, 28, 30). The RF-based sensing system (100) is configured for performing RF-based sensing using one or more of two or more different communication technologies (34, 36). A communication technology (34) for performing RF-based sensing in the RF-based sensing system (100) is selected for one or more of the nodes (26, 28, 30) based on one or more parameters related to RF-based sensing in the RF-based sensing system (100). A communication technology (36) optimal for a current sensing application with a current sensing quality requirement in a current context considering the available system resources can be selected. The communication technologies can be wideband (34) and narrowband (36) communication technologies. The parameters can include sensing application parameters, sensing quality parameters, system resource parameters, and contextual parameters.

Abstract: A method (300) of detecting presence in a space is disclosed. The method comprises entering (302) a monitoring state, receiving (304) one or more first signals from one or more radio frequency sensors, analyzing (306) the one or more first signals to determine that a being is present in the space, controlling (308), when the presence of the being has been determined, a device configured to provide a stimulus perceivable by the being in the space to provide the stimulus, receiving (310) one or more second signals from the one or more radio frequency sensors when the stimulus has been provided, analyzing (312) the one or more second signals, detecting (314) a physical response to the stimulus of the being based on the analyzed one or more second signals, generating (316) a notification command and/or a control command based on the physical response, and communicating (318) a signal indicative of the notification command and/or the control command to a controllable device or an application.

Abstract: The invention is directed to a receiver (100) for an RF presence-sensing arrangement (150). The receiver is configured to receive a first intra-network RF sensing signal (102) from a first transmitter (104), both pertaining to a first local-area RF communication network (106) spanning a first presence-sensing volume (114) and to additionally receive an inter-network RF sensing signal (108) from a second transmitter (110) pertaining to a second local-area RF communication network (112), thus spanning a third presence-sensing volume (120) and to provide a first and an inter-network signal-strength signal (S1, S3) indicative of a respective received-signal strength. In the RF presence-sensing arrangement, a presence detection unit (122) is configured to provide, based on the signal-strength signals, a presence detection signal (SDET) indicative of a change in presence of a subject or object in the first or in the third presence-sensing volume, thus increasing the accuracy of the presence determination.

Abstract: A method for use in a lighting system for rendering emergency lighting comprises detecting (101) a switch from a normal mode of the lighting system to an emergency mode of the lighting system and a switch from the emergency mode to the normal mode and activating (103) an emergency radio frequency-based sensing function upon detecting the switch from the normal mode to the emergency mode. The radio frequency-based sensing comprises detection of disturbances to a radio frequency field. The method further comprises deactivating (105) the emergency radio frequency-based sensing function upon detecting the switch from the emergency mode to the normal mode.

Abstract: The invention provides a lighting device for determining and conveying an intelligibility of an audio signal, wherein the audio signal comprises a plurality of occurrences of a repeating audio feature, wherein each occurrence of the repeating audio feature comprises a respective value of an acoustic characteristic, wherein the lighting device comprises: a light source; a microphone for detecting the audio signal; a processor configured to: receive the audio signal from the microphone, determine a baseline value based on said audio signal, determine a positive intelligibility of the audio signal if the last occurrence of the repeating audio feature comprises a respective value of the acoustic characteristic being at least equal to the baseline value, or determine a negative intelligibility of the audio signal if the last occurrence of the repeating audio feature comprises a respective value of the acoustic characteristic being less than the baseline value, and control the light source to convey the determined

Abstract: A system (1) for controlling message routing within a wireless network, which comprises a plurality of nodes (1,11-15), is configured to determine a first subset of the plurality of nodes. The first subset comprises one or more devices (12,15) that are assigned a radio frequency-based presence and/or location detection function. The system is further configured to determine a plurality of routes from a source node (1) to a destination node (12). At least one of the plurality of routes comprises one or more intermediate nodes (11,13,14,15). The system is further configured to select one of the plurality of routes based on how many of the intermediate nodes of each of the plurality of routes are part of the first subset of the plurality of nodes and transmit one or more messages to cause the wireless network to perform message routing according to the selected route.