Abstract: The system including a sensing device including a pressure sensor configured to measure pressure of water in a water system of a structure during a testing interval when a system shutoff valve of the water system is closed. The sensing device can be configured to generate pressure measurement data representing the pressure of the water as measured by the pressure sensor. The system also can include one or more processing units comprising one or more processors and one or more non-transitory storage media storing machine-executable instructions configured when run on the one or more processors to perform estimating an orifice size of a leak in the water system based on the pressure measurement data. Other embodiments are provided.

Abstract: There is provided a system including a wireless tag reader, a first wireless antenna, a wireless tag including an integrated circuit (IC), a conductive element electronically connecting the wireless tag to the first wireless antenna, a non-transitory memory storing an executable code, a hardware processor executing the executable code to transmit an interrogation signal, receive a tag signal from the wireless tag electronically connected to the first wireless antenna in response to the interrogation signal, the tag signal including a wireless tag identification (ID) uniquely identifying the wireless tag, and determine an interaction by a user with the wireless tag based on the tag signal.

Abstract: There is provided a system including a wireless tag reader, a first wireless antenna, a wireless tag including an integrated circuit (IC), a conductive element electronically connecting the wireless tag to the first wireless antenna, a non-transitory memory storing an executable code, a hardware processor executing the executable code to transmit an interrogation signal, receive a tag signal from the wireless tag electronically connected to the first wireless antenna in response to the interrogation signal, the tag signal including a wireless tag identification (ID) uniquely identifying the wireless tag, and determine an interaction by a user with the wireless tag based on the tag signal.

Abstract: The system including a sensing device including a pressure sensor configured to measure pressure of water in a water system of a structure during a testing interval when a system shutoff valve of the water system is closed. The sensing device can be configured to generate pressure measurement data representing the pressure of the water as measured by the pressure sensor. The system also can include one or more processing units comprising one or more processors and one or more non-transitory storage media storing machine-executable instructions configured when run on the one or more processors to perform estimating an orifice size of a leak in the water system based on the pressure measurement data. Other embodiments are provided.

Abstract: A wearable sensing band is presented that generally provides a non-intrusive way to measure a person's cardiovascular vital signs including pulse transit time and pulse wave velocity. The band includes a strap with one or more primary electrocardiography (ECG) electrodes which are in contact with a first portion of the user's body, one or more secondary ECG electrodes, and one or more pulse pressure wave arrival (PPWA) sensors. The primary and secondary ECG electrodes detect an ECG signal whenever the secondary ECG electrodes make electrical contact with the second portion of the user's body, and the PPWA sensors sense an arrival of a pulse pressure wave to the first portion of the user's body from the user's heart. The ECG signal and PPWA sensor(s) readings are used to compute at least one of a pulse transit time (PTT) or a pulse wave velocity (PWV) of the user.

Abstract: There is provided a system including a wireless tag reader, a first wireless antenna, a wireless tag including an integrated circuit (IC), a conductive element electronically connecting the wireless tag to the first wireless antenna, a non-transitory memory storing an executable code, a hardware processor executing the executable code to transmit an interrogation signal, receive a tag signal from the wireless tag electronically connected to the first wireless antenna in response to the interrogation signal, the tag signal including a wireless tag identification (ID) uniquely identifying the wireless tag, and determine an interaction by a user with the wireless tag based on the tag signal.

Abstract: A wearable sensing band is presented that generally provides a non-intrusive way to measure a person's cardiovascular vital signs including pulse transit time and pulse wave velocity. The band includes a strap with one or more primary electrocardiography (ECG) electrodes which are in contact with a first portion of the user's body, one or more secondary ECG electrodes, and one or more pulse pressure wave arrival (PPWA) sensors. The primary and secondary ECG electrodes detect an ECG signal whenever the secondary ECG electrodes make electrical contact with the second portion of the user's body, and the PPWA sensors sense an arrival of a pulse pressure wave to the first portion of the user's body from the user's heart. The ECG signal and PPWA sensor(s) readings are used to compute at least one of a pulse transit time (PTT) or a pulse wave velocity (PWV) of the user.

Abstract: Wearable pulse pressure wave sensing devices are presented that generally provide a non-intrusive way to measure a pulse pressure wave travelling through an artery using a wearable device. In one implementation, the device includes an array of pressure sensors disposed on a mounting structure which is attachable to a user on an area proximate to an underlying artery. Each of the pressure sensors is capable of being mechanically coupled to the skin of the user proximate to the underlying artery. In addition, there are one or more arterial location sensors disposed on the mounting structure which identify a location on the user's skin likely overlying the artery. A pulse pressure wave is then measured using the pressure sensor of the array closest to the identified location.

Abstract: The cardiovascular vital signs of a user are measured. One or more user activity metrics is received from one or more user activity sensors. A type of activity the user is currently engaged in is inferred from the received user activity metrics. Additional context that is associated with the inferred type of activity may also be identified. A determination is made as to if it is time to measure the cardiovascular vital signs of the user, where this determination is based on the inferred type of activity and may also be based on the identified additional context. Whenever it is determined to be time to measure the cardiovascular vital signs of the user, this measurement is made.

Abstract: A contactless current and power consumption sensor can be safely mounted on a circuit breaker box of a structure, so as to sense the current flow and/or power consumed in the structure. Because the sensor can be mounted on a surface of the circuit breaker box without the need to access energized conductors inside the box, an unskilled person can readily install the sensor to monitor total instantaneous current flow and thus, determine the power consumed by energized devices in the structure on a continuing basis. The output from the sensor can be supplied to a readout or can be conveyed by a wired or wireless link to a computing device disposed at a remote location, where the data can be stored or viewed on a display. By integrating the power consumed over time, the energy usage by the energized devices in a structure can also be determined.

Abstract: The description relates to user control gestures. One example allows a speaker and a microphone to perform a first functionality. The example simultaneously utilizes the speaker and the microphone to perform a second functionality. The second functionality comprises capturing sound signals that originated from the speaker with the microphone and detecting Doppler shift in the sound signals. It correlates the Doppler shift with a user control gesture performed proximate to the computer and maps the user control gesture to a control function.

Abstract: Systems and methods for a low-power sensor node and network. A low-power sensor node including a battery, a microcontroller, a sensor module, and a transmitter is used to sense an environmental condition and transmit the information back to a base station via a preexisting power line infrastructure such as power lines of a house or apartment building.

Abstract: The description relates to user control gestures. One example allows a speaker and a microphone to perform a first functionality. The example simultaneously utilizes the speaker and the microphone to perform a second functionality. The second functionality comprises capturing sound signals that originated from the speaker with the microphone and detecting Doppler shift in the sound signals. It correlates the Doppler shift with a user control gesture performed proximate to the computer and maps the user control gesture to a control function.

Abstract: A contactless current and power consumption sensor can be safely mounted on a circuit breaker box of a structure, so as to sense the current flow and/or power consumed in the structure. Because the sensor can be mounted on a surface of the circuit breaker box without the need to access energized conductors inside the box, an unskilled person can readily install the sensor to monitor total instantaneous current flow and thus, determine the power consumed by energized devices in the structure on a continuing basis. The output from the sensor can be supplied to a readout or can be conveyed by a wired or wireless link to a computing device disposed at a remote location, where the data can be stored or viewed on a display. By integrating the power consumed over time, the energy usage by the energized devices in a structure can also be determined.

Abstract: Disclosed is an indoor location system that uses an electrical power line, power line signal injection devices, and portable position receivers (tags) to generate location data relating to positions of the tags in a structure such as a residence or business. The indoor location system fingerprinting of multiple signals transmitted along the power line to achieve sub-room-level localization of the positioning receivers. Details regarding power line positioning are described along with how it compares favorably to other fingerprinting techniques.

Abstract: Systems and methods for controlling or effectively disabling recordation by a camera in an environment are disclosed. One system embodiment includes, among others, a detector and a neutralizer disposed in the environment and coupled to each other. One method embodiment, among others, includes emitting light or a signal into the environment, detecting a camera in the environment, and neutralizing the ability of the camera to capture an image with light emitted from a light source.