Disclosed is a device and a method for measuring stream water depth in real-time through positioning data filtering to ensure the reliability of the measured water depth data even when the stream water depth measurement data is filtered and applied to a small stream having a small basin area and a steep slope. The device for measuring stream water depth in real-time through positioning data filtering includes: a measuring part for measuring the water depth of a stream to be measured; a positioning data filtering part for filtering the water depth data measured by the measuring means by a local linear regression-based bivariate scatterplot smoothing technique through elastic bandwidth application; and a water depth calculating part for calculating a water depth of the stream to be measured by using the positioning data filtered by the positioning data filtering part, and minimizing the uncertainty of the water depth measurement.

A frame body is provided parallel to and proximate with a surface of a structure and extends substantially horizontally from a first side to a second side. A connecting portion is provided to be attached to a cable to provide for vertical movement of the frame body. A robotic arm is affixed proximate to a bottom of the frame body and is able to move horizontally during penetrative imaging of the surface. Moreover, the robotic arm extends to an end proximate with the surface, and a penetrative imaging portion is attached to the robotic arm near the end proximate with the surface. The robotic arm rotates, vertically moving the penetrative imaging portion during penetrative imaging of the surface. In addition, the penetrative imaging portion can be separately rotated about three orthogonal axes of rotation (yaw, pitch, roll) to achieve various angles of approach and orientation to the surface.

The present disclosure provides systems and techniques for determining whether a user is holding a gun. The gun may include a sensor, such as a laser proximity sensor, a capacitive proximity sensor, a load cell, an accelerometer, or a biometric sensor, and the gun may determine whether a user is holding the gun based on an output generated by the sensor. A processor housed in the gun may identify activation of a proximity sensor, determine that a user is holding the gun based on the activation of the proximity sensor, and perform an action in response to determining that the user is holding the gun. The action performed by the processor may include performing a boot procedure, performing a health check procedure, visually indicating state information about the gun, audibly indicating state information about the gun, or tactilely indicating state information about the gun.

Disclose are various approaches for optimizing operation of an autonomous wireless mobile asset monitoring system. The approaches involve detecting the presence of cargo in a mobile asset. First, if energy conservation is a requirement of the system, each zone of the mobile asset is scanned until cargo is detected in one of the zones. Then, the results of the scan are transmitted to backend infrastructure. Alternatively, if energy conservation is not a requirement of the system, every zone of the mobile asset is scanned and the results of the scan are transmitted to backend infrastructure.

Disclose are various approaches for optimizing operation of an autonomous wireless mobile asset monitoring system. The approaches involve detecting the presence of cargo in a mobile asset. First, if energy conservation is a requirement of the system, each zone of the mobile asset is scanned until cargo is detected in one of the zones. Then, the results of the scan are transmitted to backend infrastructure. Alternatively, if energy conservation is not a requirement of the system, every zone of the mobile asset is scanned and the results of the scan are transmitted to backend infrastructure.

Systems and methods for calculating a plant spread and a plant density of vegetation are provided. An ultrasonic signal is transmitted towards vegetation by one or more transducers. A plurality of echo signals is received as reflections of the ultrasonic signal by the one or more transducers. A plant spread of the vegetation is calculated based on a first echo signal of the plurality of echo signals and a last echo signal of the plurality of echo signals. A plant density of the vegetation is calculated based on the plurality of echo signals. The plant spread and the plant density of the vegetation are output.

A system for measuring vertical jump is disclosed, in accordance with one or more embodiments of the present disclosure. The system may include a vane assembly comprising a plurality of vanes movably coupled to an extendable member at a plurality of heights relative to a ground level, each being vane displaceable from an original position to a displaced position in response to contact from a user. The system may also include a measurement device configured to obtain at least one of: a baseline height from a first vane of the plurality of vanes to the ground level; a user height; a user reach; or a displacement height, wherein the displacement height is the height of the uppermost vane in a displaced position relative to the ground level. The system may also include a controller communicatively coupled to the measurement device.

Described herein is an ultrasound-based virus shield. The ultrasound-based virus shield may include an ultrasound sonar emitter configured to emit a first sonar signal including a header with key data, and an ultrasound sonar receiver configured to receive a second sonar signal. The ultrasound-based virus shield may include a processor configured to: calculate a distance between the ultrasound-based virus shield and a subject in response to determining that the second sonar signal includes the key data associated with the first sonar signal, and activate an ultrasound sterilizing emitter in response to determining that the distance calculated is less than a threshold distance. An ultrasound sterilizing emitter of the ultrasound-based virus shield may be configured to emit a sterilizing signal.

A vehicle configured to operate in an autonomous mode can obtain sensor data from one or more sensors observing one or more aspects of an environment of the vehicle. At least one aspect of the environment of the vehicle that is not observed by the one or more sensors could be inferred based on the sensor data. The vehicle could be controlled in the autonomous mode based on the at least one inferred aspect of the environment of the vehicle.

A vehicle configured to operate in an autonomous mode can obtain sensor data from one or more sensors observing one or more aspects of an environment of the vehicle. At least one aspect of the environment of the vehicle that is not observed by the one or more sensors could be inferred based on the sensor data. The vehicle could be controlled in the autonomous mode based on the at least one inferred aspect of the environment of the vehicle.