A method is presented for warning of bridge height clearance with a system that has a measuring device mounted on a bridge, a processor and a display. The method includes measuring the distance from the point at which the measuring device is mounted on the bridge to pavement below to obtain measurement data, processing the measurement data to calculate a clearance height of the bridge, and displaying a clearance height of the bridge on a display so that a driver approaching the bridge can see the current height of the bridge.

A position determination method in a vehicle, which uses signals from a pressure-based collision sensor. In addition, an associated electronic control module and an associated use.

According to an aspect, a sensor system includes: a first device including a first controller and a first communicator; and a plurality of second devices each including an altitude sensor, a blood oxygen saturation level sensor, a second controller, and a second communicator. The second controller of the second device is configured to transmit altitude information measured by the altitude sensor and biometric information measured by the blood oxygen saturation level sensor to the first device through the second communicator. The first device has determination information comprising determination thresholds for a blood oxygen saturation level corresponding to different altitudes. The first controller is configured to warn that the blood oxygen saturation level is lower than the determination threshold corresponding to the altitude information based on the altitude information and the biometric information received from each of the second devices through the first communicator and the determination information.

According to an aspect, a sensor system includes: a first device including a first controller and a first communicator; and a plurality of second devices each including an altitude sensor, a blood oxygen saturation level sensor, a second controller, and a second communicator. The second controller of the second device is configured to transmit altitude information measured by the altitude sensor and biometric information measured by the blood oxygen saturation level sensor to the first device through the second communicator. The first device has determination information comprising determination thresholds for a blood oxygen saturation level corresponding to different altitudes. The first controller is configured to warn that the blood oxygen saturation level is lower than the determination threshold corresponding to the altitude information based on the altitude information and the biometric information received from each of the second devices through the first communicator and the determination information.

A method involves determining, at a mobile device or a service, an uncertainty in height above a reference altitude, an estimated 2D position of the mobile device, and an uncertainty in terrain height above the reference altitude using the estimated 2D position. An uncertainty in height above terrain, of the mobile device, is determined at the mobile device or a server using the uncertainty in height above the reference altitude and the uncertainty in terrain height above the reference altitude.

A method involves determining, at a mobile device or a service, an uncertainty in height above a reference altitude, an estimated 2D position of the mobile device, and an uncertainty in terrain height above the reference altitude using the estimated 2D position. An uncertainty in height above terrain, of the mobile device, is determined at the mobile device or a server using the uncertainty in height above the reference altitude and the uncertainty in terrain height above the reference altitude.

According to one embodiment, an apparatus comprising a portable monitoring device to be affixed to a user. The portable monitoring device including: 1) a set of one or more sensors to generate sensor data indicative of physical activity of a user when the portable monitoring device is affixed to the user; and 2) processing circuitry coupled with the set of sensors, to detect that the user has been sedentary for a period of time, and cause the portable monitoring device to alert the user responsive to the detection to encourage the user to move.

According to one embodiment, an apparatus comprising a portable monitoring device to be affixed to a user. The portable monitoring device including: 1) a set of one or more sensors to generate sensor data indicative of physical activity of a user when the portable monitoring device is affixed to the user; and 2) processing circuitry coupled with the set of sensors, to detect that the user has been sedentary for a period of time, and cause the portable monitoring device to alert the user responsive to the detection to encourage the user to move.

Determining calibration values for atmospheric sensors that provide measured pressures used for estimating altitudes of mobile devices. Particular systems and methods determine if any uncalibrated reference-level pressure estimates associated with an unstable pressure sensor should not be used when calibrating the unstable pressure sensor, and calibrate the unstable pressure sensor using all of the uncalibrated reference-level pressure estimates except any uncalibrated reference-level pressure estimate that should not be used when calibrating the unstable pressure sensor.

An automation assisted elevation certificate production system includes a user computer device, an electronic elevation certificate database storing electronic elevation certificate records associated with respective real property structures and an elevation certificate application. The elevation certificate application is configured to receive address information associated with a real property, determine a parcel boundary associated with the received address information, receive elevation data corresponding to an area within the parcel boundary, determine a boundary for a structure within the parcel boundary, and determine a buffer boundary. The elevation certificate application is further configured to determine a highest adjacent grade (HAG) and a lowest adjacent grade (LAG), based on a portion of the received elevation data corresponding to an area defined between the structure boundary and the buffer boundary, and to automatically input the highest adjacent grade (HAG) and lowest adjacent grade (LAG) into an electronic elevation certificate record, and store the electronic elevation certificate record.