The system of has one accelerometer, one motor, one signal processor, one electronic motor speed controller, a power switch, a power source, a housing and a handle. The user controls the attitude orientation of the device by manipulating the handle. The accelerometer is connected to the housing or handle, and detects the acceleration due to gravity in at least one axis of the housing or the handle. The accelerometer communicates with the signal processor. The signal processor determines a commanded operating motor speed based on a preprogrammed schedule of one or more accelerometer output signals and sends the commanded operating motor speed to an electronic motor speed controller. The electronic motor speed controller controls the speed and direction of the motor according to the commanded speed and direction of the signal processor. The power switch activate the device based on the switch ON/OFF position.

A star infiltration device and method of measuring the gravitational acceleration and soil-bearing capacity of a star are provided. The infiltration device is multifunctional and has a variable ramming frequency intensity. It comprises an infiltrator in which a rammer is driven by solenoid coils to move up and down in a conducting pipe to cause the infiltrator to penetrate a layer of star soil. Planetary gravitational acceleration is measured while the infiltrator is in the penetration state, star soil softness is evaluated during the penetration process, and star soil thermal parameters and temperature fluctuations are measured after penetration.

A validation method relating to the detection of a crossing of the Krmn line by a portable object (2) carried on board a rocket and incorporating a detection device including an acceleration sensor (8) capable of measuring accelerations of the portable object and an electronic unit for processing the acceleration measurements made so as to detect a crossing of the Krmn line by the portable object. The method calculates a confidence index, relating to measurements made by the portable object for a variable which is a function of forces exerted on this portable object, and checks whether a condition given for the confidence index is met. Also, a portable object, in particular a watch, designed to be able to implement a method for detecting a crossing of the Krmn line and the validation method of the invention.

A method of operating a controller includes: obtaining calibration data for a mounting orientation of the controller operating in a calibration mode based on obtaining first acceleration samples from an acceleration sensor; obtaining second acceleration samples from the acceleration sensor when a control switch is activated with the controller operating in a normal operating mode; performing a comparison of the second acceleration samples to the calibration data; based on the comparison, determining whether more than one of the second acceleration samples is not within a specified range; and in response to determining that more than one of the second acceleration samples is not within the specified range, causing the controller to operate in an anti-tamper mode.

Aspects of the disclosure relate to methods, apparatus, and systems for triggering an action while a device is separated from a user and traveling toward a target. A system includes a device and a triggering apparatus. The device is configured to measure a magnetic field strength, a device acceleration, and/or a device angular velocity while the device is separated from a user and traveling toward a target, and send the measured magnetic field strength, the measured acceleration, and/or the measured angular velocity to the triggering apparatus while the device is separated from the user and traveling toward the target. The triggering apparatus is configured to receive the measured magnetic field strength, the measured acceleration, and/or the measured angular velocity from the device, and determine whether to trigger an action based on an analysis of the measured magnetic field strength, the measured acceleration, and/or the measured angular velocity.

Provided is a method for recording sudden unintended acceleration of a vehicle using a pedal black box, in which the box includes a camera unit, a communication unit, a control unit, a storage unit, an input unit, and a sudden unintended acceleration determination unit, the method comprising: acquiring, from the camera unit, filmed video data of a surrounding area of a pedal part of the vehicle; performing, by the control unit, a first mode for storing the video data in at least one of the storage unit or an external storage device disposed independently of the pedal black box; determining, by the sudden unintended acceleration determination unit, whether the vehicle experiences a sudden unintended acceleration event.