An exemplary method and system is disclosed that facilitates a readily-re-deployable and self-enclosed geofencing and proximity-based intrusion sensing and alerting system in a roadway or construction work zone. The sensing and alerting system is configured in the form factor of a safety cone, barricade or drum to sense and uses acoustic-echoes or LiDAR-based sensing to detect intruders that are in proximity to the sensing and alerting system to generate a siren or loud audible alert, as well as flashing lights, to warn workers of such intrusion.

A detecting system for fire is provided. The detecting system includes a sensing device, a control center, and a physical circuit. The sensing device is disposed in a sensing area. The sensing device is for obtaining target information, environmental information, and location information, and for outputting sensing information. The sensing area includes a sub-sensing area corresponding to the sensing device. The control center is coupled to the sensing device. The control center is for outputting integrated information based on sensing information. The physical circuit is for coupling the sensing device and the control center. The sensing device obtains the unique location information corresponding to the sub-sensing area according to the physical circuit.

Monitoring a premises may comprise receiving signals from a plurality of devices. One or more spatially static devices of the plurality of devices may be determined based on strengths of the received signals. A user activity pattern may be determined based on changes in strengths of signals received from the spatially static devices. Abnormal user activity may be determined based on the user activity pattern and a strength of at least one signal received from at least one of the spatially static devices.

Use of multiple sensors to determine whether motion of an object is occurring in an area is described. In one aspect, an infrared (IR) sensor can be supplemented with a radar sensor to determine whether the determined motion of an object is not a false positive.

A sensor for monitoring a monitoring area having a transmitter for transmitting radiation into the monitoring area for reflection at an object in the monitoring area, a test transmitter for transmitting a test signal comprising radiation, a receiver for receiving the radiation of the transmitter that is reflected at the object or the radiation of the test transmitter, and an evaluation device for ascertaining a distance value on the basis of the delay in the transit time or the phase of a modulation between the transmitted and received radiation of the sensor. The sensor further comprises a memory for storing an expectation value for the expected distance value of the received test signal, and a comparison device for comparing a distance value on the basis of the received test signal with the expectation value and for outputting a safety signal on the basis of the comparison.

A sensor for monitoring a monitoring area having a transmitter for transmitting radiation into the monitoring area for reflection at an object in the monitoring area, a test transmitter for transmitting a test signal comprising radiation, a receiver for receiving the radiation of the transmitter that is reflected at the object or the radiation of the test transmitter, and an evaluation device for ascertaining a distance value on the basis of the delay in the transit time or the phase of a modulation between the transmitted and received radiation of the sensor. The sensor further comprises a memory for storing an expectation value for the expected distance value of the received test signal, and a comparison device for comparing a distance value on the basis of the received test signal with the expectation value and for outputting a safety signal on the basis of the comparison.

Disclosed are systems comprising: a transmitter background; a receiver background; a plurality of transmitter units affixed on the transmitter background, each transmitting an encoded electromagnetic wave (EM), wherein the electromagnetic wave is transmitted as a wide beam; and a plurality of receiver units affixed on the receiver background, wherein each of the plurality of the transmitter units is in electromagnetic communication with at least one of the receiver units. Also disclosed are methods of identifying the presence of an object intersecting a spatial surface. Further, a housing for the system is disclosed.

A detecting method for detecting a dynamic status in a space, wherein at least two wireless communication devices are deployed in the space and capable of performing a channel state detection to obtain a channel state information, the detecting method comprising: controlling the at least two wireless communication devices to perform the channel state detection in a registration stage to obtain a plurality of registration-stage channel state information; determining an environmental data of the space according to the plurality of registration-stage channel state information; controlling the at least two wireless communication devices to perform the channel state detection in a detection stage to obtain a plurality of detection-stage channel state information; and determining an intrusion situation of the space according to the environmental data and the plurality of detection-stage channel state information.

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.

The present invention relates to adjusting one or more wireless parameters of one or more nodes (12, 14, 16) based on one or more node parameters including a relative location of the one or more of the nodes (12, 14, 16). The nodes (12, 14, 16) are wirelessly connected in a wirelessly connected system (100) and configured for transmitting radio frequency (RF) signals (18), receiving RF signals (18), or both. The one or more wireless parameters are adjusted such that the wireless performance of the one or more of the nodes (12, 14, 16) is optimized for an application of the wirelessly connected system (100). Transmission power can be adjusted such that a probability of detecting an event in a volume (212, 222) not to be covered by the one or more of the nodes (12, 14, 16) is reduced, allowing reduction of false positives from non-covered volumes (212, 222).