Abstract: The invention relates to adjusting at least one of installed building service sensors (10) of a building service system. A sensor coverage area of at least one sensor (10) is adjusted based on information on a position of the installed sensor (10) relative to at least one other sensor (10). For example, to determine the position of the sensor (10) relative to said at least one other sensor (10), each sensor (10) establishes a wireless communication between said sensor (10) and at least one other sensor (10) via a wireless communication means (34) of the sensor (10). For example, information on the positions of the installed sensors (10) is used to assign to each sensor (10) at least one of installed building service supply devices (12) of the system.

Abstract: The disclosure relates to a lighting system which can be controlled from a wireless device in dependence on complying with an access rule that the wireless device is determined to be within in a spatial region associated with the lighting system. The disclosure provides apparatus for securing against the lighting system being controlled from a device located outside the relevant region via a rogue relay device located in that region. The apparatus comprises a user location module configured to determine user location information indicative of whether a user is accompanying the wireless device in the region associated with the lighting system, and an access module which is configured with a further access rule: that it does not allow the control of the lighting system by the wireless device if the user location information is indicative of the wireless device being unaccompanied by a user.

Abstract: A method of tracking a location of a mobile device based on measurements of beacon signals transmitted between the mobile device and wireless reference nodes of a localization network.

Abstract: A wireless device comprising: a wireless interface for communicating with a network of reference nodes, and a location module configured to obtain a measurement of a respective signal communicated between the wireless interface and each of a plurality of said reference nodes. The location module is also supplied with a respective set of transformed coordinates for each of said plurality of reference nodes, transformed relative to their actual physical coordinates. Using said signal measurements and the transformed coordinates of said plurality of reference nodes, the wireless device then submits information indicative of a transformed location of the wireless device to an interpretation function. Based on the interpretation function, the wireless device is thereby able to access functionality relating to the physical location of the mobile terminal.

Abstract: A calibration method comprising, for each of one or more light sensors: (a) under influence of one or more substantially non-zero illumination levels in the target environment, using the light sensor to measure the sensed light level corresponding to each of these one or more illumination levels; (b) receiving a template light level value corresponding to each of the one or more illumination levels, representing the light level at a target location in the target environment substantially removed in space from the location of the light sensor, each of the one or more template light level values being assumed for the environment rather than measured by a light meter; and (c) determining a relationship between the sensed light level and the light level experienced at the target location, based on an evaluation of the one or more sensed levels relative to the one or more template light level values.

Abstract: A method of determining a location of a mobile device based on a first location estimation performed using a first location system, the method comprising: obtaining an initial estimate of the mobile device's location based on a second location estimation that is coarser than the first location estimation; using the initial estimate to select a subset of the reference nodes of the first network that are within a defined vicinity of the mobile device's location; and from amongst a database of respective assistance data for each of the wireless reference nodes stored on a server of the first location system, selectively providing the respective assistance data for each of said subset of wireless reference nodes to a localization module on the mobile device, for the localization module of the mobile device to calculate a finer estimate of the mobile device's location.

Abstract: Apparatus for use in one of a plurality of sensors each having a respective transmitter which transmits pulses for sensing, a respective clock which controls timing of the pulses transmitted from the respective transmitter, and a respective receiver which receives echoed instances of the pulses. The apparatus comprises: sensing logic configured to sense a being or object in dependence on the echoed pulses received back by the respective receiver from the respective transmitter, and timing logic configured to compensate for a clock discrepancy between the respective clock and that of one or more others of the sensors. The timing logic does this by using the respective receiver to listen for instances of the pulses from the one or more other sensors, and adjusting the timing of the pulses from the respective transmitter based thereon.

Abstract: The present invention relates to a lighting control analyzer (170), and a corresponding method (600), for determining occupancy behavior in an area (110, 200) illuminated by at least one lighting device (120a-c) controllable by a lighting controller (160). The lighting control analyzer is adapted to receive light settings (d) for control of the at least one lighting device, the light settings being determined by the lighting controller using a lighting control strategy for the area. The lighting control strategy represents a desired illumination of the area, based on presence information associated with the area. The lighting control analyzer is further adapted to determine the occupancy behavior, based on the light settings and the lighting control strategy. The occupancy behavior may comprise normal locations of occupants (401-417), how often occupants are normally located at different locations, and entrance points of the area.

Abstract: A sensor such as a presence sensor for use in a lighting system or other system that adapts to information from a plurality of active presence sensors. If transmissions from the active sensors are uncoordinated, the overall detection performance may be adversely impacted (e.g. due to potential cross-interference), which may make sensing over the detection coverage area defined by a single presence sensor (or the like) become unreliable. The disclosure presents protocols for coordinating transmissions in active sensing systems. The invention may be applied to various active modalities (e.g. ultrasound, RF), for example that find applications in indoor and outdoor lighting controls.

Abstract: A location system comprising: a location network comprising a plurality of reference nodes and at least one controller. Each reference node is operable to transmit a respective beaconing signal from which a respective measurement can be taken by a mobile device for use in determining a location of the mobile device. The at least one controller is configured to control whether and/or how often one or more signals of the location system are transmitted to be used in determining the location of the mobile device, the control being based on feedback from at least one determination of the location of the mobile device relative to the reference nodes.

Abstract: A method (300, 600) of augmenting an illumination perception by one or more wearers of respective head-mountable computing devices (100) each including at least one transparent display module (106) is disclosed. The method comprises determining (320) a desired light condition for said wearer in a space (10), determining an actual light condition (330) for said wearer in said space; and displaying a semi-transparent image on the at least one transparent display module to filter the light passing through the at least one display module in case the actual light condition differs from the desired light condition. In embodiments, the user preferences may be used to perform a global optimization of the light output by one or more (distributed) light sources of a lighting system. Computer program products comprising computer program code for implementing such a method when executed on a suitable processor, a head-mountable computing device and a lighting system are also disclosed.

Abstract: A sensor such as a presence sensor for use in a lighting system or other system that adapts to information from a plurality of active presence sensors. If transmissions from the active sensors are uncoordinated, the overall detection performance may be adversely impacted (e.g. due to potential cross-interference), which may make sensing over the detection coverage area defined by a single presence sensor (or the like) become unreliable. The disclosure presents protocols for coordinating transmissions in active sensing systems. The invention may be applied to various active modalities (e.g. ultrasound, RF), for example that find applications in indoor and outdoor lighting controls.

Abstract: The invention relates to a method for managing light settings of a luminaire communicatively connected to a local coordinator. The method, performed by the luminaire, includes steps of providing to the local coordinator a control state of the luminaire (e.g. occupancy status), receiving from the local coordinator a power reduction factor for the luminaire, the factor being based on the control state of the luminaire and on control states provided to the local coordinator by one or more additional luminaires, determining new illuminance settings for the luminaire by applying the received factor to current illuminance settings, measuring luminance within a sensing region of a light sensor of the luminaire while one or more light sources of the luminaire emit light according to one or more operating parameters, and, based on the measured luminance, adjusting the operating parameters to achieve the new illuminance settings.

Abstract: Technologies are described herein for providing contextually-aware location sharing services for computing devices. In some configurations, the techniques disclosed herein can involve a number of computing devices configured to select and utilize location data from one or more resources based on one or more factors. An analysis of contextual data including, but not limited to, the capabilities of the individual devices, a status of one or more components, or the availability or cost of data, allows individual devices to dynamically select and utilize location data or a source of location data to accommodate a range of scenarios. Techniques disclosed herein can also detect the presence of a changed scenario and take one or more actions based, at least in part, on data defining the changed scenario.

Abstract: An audio system that includes an ultrasound sensor array which has a plurality of ultrasound sensor elements, and an audio band array which has a plurality of audio band elements. An estimator is configured to generate a presence characteristic of a user in response to ultrasound signals received from the ultrasound sensor array. The presence characteristic may include a position estimate for the user. An audio array circuit is configured to generate a directional response for the audio band array by applying weights to individual audio band signals for the audio band elements. A weight circuit is configured to determine the weights in response to the presence characteristic.

Abstract: A system comprising a localization database mapping reference nodes to zones; and a localization module configured to determine a representative measurement based on a combination of measurements for the nodes of each zone (e.g. RSSIs), and to compare the representative measurements with one another in order to directly determine which one or more of the zones the mobile device belongs to. The system further comprises a lighting database mapping between lamps and zones, configured to receive an index of each of the one or more determined zones from the localization module, and based thereon to directly relate the one or more determined zones to one or more of the lamps in the lighting database; and a lighting access service configured to grant the mobile device with access to control of those lamps on condition of being related to the one or more determined zones by the lighting database.

Abstract: A location system comprising: a location network comprising a plurality of reference nodes and at least one controller. Each reference node is operable to transmit a respective beaconing signal from which a respective measurement can be taken by a mobile device for use in determining a location of the mobile device. The at least one controller is configured to control whether and/or how often one or more signals of the location system are transmitted to be used in determining the location of the mobile device, the control being based on feedback from at least one determination of the location of the mobile device relative to the reference nodes.

Abstract: The invention relates to a disaggregation apparatus for identifying an appliance in an electrical network (2) comprising multiple appliances (3, 4, 5). A voltage meter (7) measures a first change in a mains voltage (V) delivered to the appliances of the electrical network, while an operational state of an appliance is modified, and a second change in the mains voltage, while a switchable load is switched. An appliance determination unit (9) determines the appliance, of which the operational state has been changed, based on the measured first change in the mains voltage, the measured second change in the mains voltage and the resistance of the switchable load. Thus, an appliance can be determined without detecting switching flickers in very short time durations, i.e. high sampling rates and continuous monitoring are not necessarily required. This reduces the technical efforts of the disaggregation apparatus for performing the disaggregation function.

Abstract: In one aspect, a mobile device is located using a signal sent out from the mobile device to nodes of a location network, and the mobile device also sends a tracking preference associated with the signal. This specifies whether a location network is permitted to use the signal to determine the mobile's location, and/or whether a provider of a location related service associated with a location network is permitted to make use of the location. In embodiments the preference may be tagged with the ID of a particular provider. In another aspect, the localization is based on measurements taken by a mobile terminal of signals sent from the nodes, and the nodes also send out an identifier with the signal identifying a provider of a location related service associated with the network. The mobile device can then use this identifier to determine who to share its measurements or location with.

Abstract: A method of synchronizing transmission of signals between two nodes in a network that includes at least another cooperating node. After reception of a clear-to-code signal (CTC) from the one node (B), broadcasting a clear-to-send signal (CTS), which contains at least a timing indication, from the cooperating node (C) to the first node (A) and the second node (B). After reception of the clear-to-send signal (CTS) by the first and second nodes (A,B), a first signal (S1) and a second signal (S2) are transmitted, via the cooperating node (C), respectively from the first node (A) to the second node (B) and from the second node (B) to the first node (A) during at least a common time period depending on the timing indication.