Abstract: The invention is directed to a signal-strength compensating unit (100) for providing a temperature-compensated received-signal-strength indication value of a wireless signal (W) received by an external wireless receiver from an external wireless transmitter (106).

Abstract: A method (100) for disinfection using a lighting system (200), comprising: •determining (140) a mid-infrared (IR) and/or far-IR wavelength configured to disrupt a target macromolecule of a target pathogen, wherein the target macromolecule is DNA, RNA, and/or •a protein of the target pathogen; and exposing (150), via a light source (210) of the lighting system (200), •exposing (150), via a light source of the lighting system (200), the target pathogen to the determined mid-IR and/or far-IR wavelength, wherein the target macromolecule is directly disrupted and the target pathogen is neutralized by the exposure; and •detecting (160), by a sensor (224) of the lighting system (200), neutralisation of the target pathogen by exposure.

Abstract: The present invention relates to performing radio frequency based sensing in multiple sensing areas (50, 60) by multiple nodes (26, 28, 30, 38, 40, 42) located at different locations. A first group (25) of nodes includes at least two of the multiple nodes (26, 28, 30) and performs radio frequency based sensing in a first sensing area (50) for detecting a first sensing event. A second group (25?) of nodes including at least two of the multiple nodes (38, 40, 42) is configured for performing radio frequency based sensing in a second sensing area (60) for detecting a second sensing event based on findings obtained by performing radio frequency based sensing in the first sensing area (50). The nodes (26, 28, 30, 38, 40, 42) may perform radio frequency based sensing based on multiple communication technologies (34). The findings may include which communication technology allows confidently detecting a sensing event.

Abstract: The invention refers to a system for controlling a radiofrequency sensing of a network 100. The network is adapted to perform different radiofrequency sensing modes, e.g. RSSI-, CSSI- or Doppler based modes. The system 130 comprises a providing unit 131 for providing environmental information, wherein the environmental information is indicative of a physical property of one or more surfaces in an environment of the network. A selecting unit 132 is adapted for selecting and/or modifying a radiofrequency sensing mode to be performed by the network, wherein the radiofrequency sensing mode is selected and/or modified based on the environmental information, and a controlling unit 133 is adapted for controlling the network 100 to perform the selected and/or modified sensing mode Taking the physical properties of surfaces in an environment into account and modifying and/or selecting the utilized radiofrequency sensing mode accordingly increases the reliability and the accuracy of the radiofrequency sensing.

Abstract: The present invention refers to a system (110) for controlling a sound-based sensing of subjects (120) in a space, wherein the sensing is performed by a network (100) of network devices (102,103,104) distributed in the space. At least one network device comprises a generating unit and a plurality of network devices located differently from the generating unit comprising a detecting unit. The system comprises a controlling unit (111) for controlling the at least one generating unit to generate a predetermined sound and the plurality of detecting units to detect the sound after a multi-channel propagation through at least a portion of the space and to generate a sensing signal indicative of the detected sound, and a determination unit (113) for determining a status and/or position of at least one subject in the space based on the plurality of sensing signals.

Abstract: The present invention relates to a radio frequency (RF) system with multiple nodes (34, 36, 38, 44, 46, 48) and a method for optimizing detection performance for performing RF-based sensing in a sensing area (32) based on RF system configuration parameters. An RF system configuration parameter of the RF system configuration parameters which affects detection performance of the RF-based sensing the most is determined. The RF system configuration parameter which affects detection performance of the RF-based sensing the most is then adjusted in order to optimize the detection performance of RF-based sensing. A root cause for a diminished detection performance and the respective RF system configuration parameter for mitigating it may be determined based on current context. For optimizing the detection performance, for example, settings of sensing parameters of the nodes (34, . . . , 48) may be adjusted or the nodes (34, . . . , 38) may be moved, removed, added, or replaced.

Abstract: The invention refers to an apparatus (140) for controlling a lighting system (100) comprising a plurality of lights (110, 120, 130), wherein the lighting system is adapted to perform a hidden sensing, like radiofrequency sensing, in a sensing region (150). The apparatus comprises a sensing activity information providing unit (141) adapted to provide sensing activity information indicative of a hidden sensing activity of the lighting system (100), a notification mode selection unit (142) adapted to select a notification mode for notifying a person of the hidden sensing activity, wherein the selection is based on the provided sensing activity information and wherein each notification mode refers to a visual feedback, and a lighting system controlling unit (143) adapted to control at least two lights of the lighting system based on the selected notification mode to provide the visual feedback. The invention allows to notify a user of a hidden sensing.

Abstract: The present invention relates to performing radio frequency based sensing based on channel state information (CSI), received signal strength indicator (RSSI), or a combination thereof based on a current context. A current context for performing radio frequency based sensing is determined and at least one of two nodes (26, 28, 30) of a radio frequency system (100) is configured for performing radio frequency based sensing based on CSI, RSSI, or a combination thereof based on the current context. The current context may be determined in real time. This may allow improving detection performance and/or reducing energy consumption in real time.

Abstract: The invention is directed to a fall-classification device (100) with a receiver unit (102) configured to receive wireless communication signals (W) from wireless transmitters (101, 103) and a subject-activity data determination unit (106) configured to determine and provide, using signal-quality values determined by a quality signal determination unit, respective subject-activity data indicative of at least two subject-activity metrics of a subject (S) within a sensing volume (V1). A fall-event detection unit (108) is configured to determine, based on a time variation of the subject-activity data of at least one subject-activity metric, whether a fall-event has occurred.

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.

Abstract: The invention refers to a device for controlling a network (100) comprising sensing areas (110, 120). The device (130) comprises a) a providing unit (131) for providing a sensing result of radiofrequency sensing in the sensing areas, b) a determination unit (132) for determining whether a detection result is potentially unreliable in a spatial region, and c) a defining unit (133) for defining a new sensing area (150) corresponding to a part of the spatial region in which the detection result is potentially unreliable. The providing unit (131) is adapted to provide a new sensing result in the new sensing area, and the detection result is determined for at least the part of the spatial region for which a potentially unreliable detection result is determined based on a sensing result and the new sensing result. Thus, the invention provides a device that allows to improve the sensing reliability of radiofrequency.

Abstract: The present invention relates to operating an RF system (100) comprising multiple nodes (26, 28, 30) for transmitting and/or receiving RF messages (34). RF messages transmitted by a transmitting node (26) are received at receiving nodes (28, 30). It is determined whether the RF messages were completely received. Upon missing at least part of the RF messages at the receiving nodes, it is determined whether missing of at least part of the RF messages is caused by an activity event of a tangible entity (32) in transmission paths (40) between the transmitting node and the receiving nodes based on one or more RF system criteria. The RF messages (34) may include RF-based sensing messages (36) and RF data messages (38). A discrepancy between missed parts of the RF-based sensing messages and missed parts of the RF data messages may be determined and included in the RF system criteria.

Abstract: The invention relates to a detection system for detecting motion of a subject by utilizing at least two devices adapted to send and receive radiofrequency signals. The system (110) comprises a control unit (111) for controlling the at least two devices such that at least one of the at least two devices is a sending device (120) sending a radiofrequency signal with a sending signal frequency and such that at least one of the at least two devices is a receiving device (130) receiving a radiofrequency signal that is indicative of reflections of the sent radiofrequency signal of the subject, a signal frequency providing unit (112) for providing the sending signal frequency with which the radiofrequency signal has been sent, and a detection unit (113) for detecting motion of the subject by performing a passive Doppler sensing based on the received radiofrequency signal and the provided sending signal frequency.

Abstract: A method (400) for configuring a distributed microphone system is disclosed. The distributed microphone system comprises a plurality of microphone devices connected via a network.

Abstract: The present invention relates to radio frequency based sensing based on multiple communication technologies (476, 486). Radio frequency based sensing is performed by a single-channel communication technology (476) in order to detect sensing events. A single-channel confidence level (470) for detecting a sensing event by performing radio frequency based sensing by the single-channel communication technology (476) is determined. Upon detecting that the single-channel confidence level (470) is above a first single-channel threshold level (474) and below a second single-channel threshold level (472) which is higher than the first single-channel threshold level (474), a multi-channel communication technology (486) for performing radio frequency based sensing is selected based on one or more radio frequency system criteria, and radio frequency based sensing is performed by the multi-channel communication technology (486).

Abstract: A system for monitoring face mask wearing of a monitored person is provided. The system includes a controller communicatively coupled to one or more multipixel thermopile sensors (“MPTs”). The controller is configured to (1) detect a monitored person region within a heat map based on one or more data sets captured by the MPTs; (2) locate a head region within the monitored person region by identifying a high intensity pixel cluster within the monitored person region; (3) determine a facing-direction of the head region based on a major axis of the monitored person region or a minor axis of the monitored person region; (4) locate a mouth region within the head region based on the facing-direction; (5) determine an exhalation region of the heat map based on the mouth region; (6) determine a mask state of the monitored person based on the exhalation region and a temperature gradient classification model.

Abstract: A system for monitoring social distancing is provided. The system includes a controller communicatively coupled to sensors within an environment. The controller may be configured to (1) receive an expected sensor behavior model for each of the sensors; (2) generate an adjusted sensor behavior model for each of the sensors based on the expected sensor behavior model for each of the sensors and an environment adjustment model for each of the sensors; (3) receive a layout of the environment; (4) generate an expected layout behavior model based on the layout and the adjusted sensor behavior model; (5) capture, via the sensors, an observed behavior data set during a measurement period; and (6) determine a social distancing state of individuals in the environment as distanced or not-distanced based on the observed behavior data set and the expected layout behavior model.

Abstract: A system is configured to obtain detection data from one or more detector devices (31-36), detect a possible intruder in a first building (51) based on the detection data, determine a location (63) associated with the possible intruder based on the detection data, select a receiver (71) by comparing the location with multiple locations, and obtain building information associated with the receiver. This building information describes a second building (52). The system is further configured to determine, based on the building information and the location of the possible intruder, a location (68) in or around the second building from which the possible intruder is expected to be visible, and transmit a security alert to the receiver. The security alert comprises a request requesting the receiver or a user of the receiver to look at the first building from the location in or around the second building.

Abstract: The invention is directed to a lighting-arrangement control device (100) for controlling operation of a lighting arrangement (150), and configured to receive, from at least one lighting device (101.1, 101.2, 101.3, 101.4) context-sensing data (CS1, PS2) correlatable to a context of a subject within a respective sensing volume (SV1, SV2). An operation control unit (104) is configured to ascertain arrangement-status data, to select one functional operation mode from a plurality of pre-specified functional operation modes of the lighting arrangement, each being associated with respective functional lighting devices and to identify as context-aware devices those lighting devices that have provided the context-sensing data relevant for the selection of the functional operation mode.

Abstract: The present invention relates to performing radio frequency (RF)-based sensing. RF-based sensing is performed by a single-channel communication technology in order to detect a sensing event. Upon detecting the sensing event, a multi-channel communication technology is selected in dependence of the single-channel communication technology used for detecting the sensing event. RF-based sensing is then performed based on the multi-channel communication technology. This allows to first perform a coarse detection of a sensing event using the single-channel communication technology and orchestrate a subsequent RF-based sensing using the multi-channel communication technology in order to improve accuracy of the RF-based sensing. The frequency channels (412) used by the multi-channel communication technology can be selected in dependence of the frequency channel (402) used by the single-channel communication technology in order to improve the RF-based sensing, e.g.