A MEMS inclinometer includes a substrate, a first mobile mass and a sensing unit. The sensing unit includes a second mobile mass, a number of elastic elements, which are interposed between the second mobile mass and the substrate and are compliant in a direction parallel to a first axis, and a number of elastic structures, each of which is interposed between the first and second mobile masses and is compliant in a direction parallel to the first axis and to a second axis. The sensing unit further includes a fixed electrode that is fixed with respect to the substrate and a mobile electrode fixed with respect to the second mobile mass, which form a variable capacitor.

Devices, methods, and systems for physical contact detection for device pairing are described herein. One device includes a mechanism configured to detect physical contact between the device and a wireless device, a memory, and a processor configured to execute executable instructions stored in the memory to perform a pairing of the wireless device and the device only upon the mechanism detecting the physical contact between the device and the wireless device.

A method for controlling engine combustion may include receiving a signal of a crank position sensor, determining an angular velocity and an angular acceleration of a crank on the basis of the signal of the crank position sensor, determining a combustion characteristic index for each cylinder using the angular velocity and the angular acceleration of the crank, judging an unstable combustion cylinder using the combustion characteristic index for each cylinder, and changing a combustion factor for controlling the unstable combustion cylinder.

Disclosed is a shock sensor for detecting an attack on a facility equipped with the shock sensor, comprising: a microprocessor; a micro electromechanical system in communication with the microprocessor, the micro electromechanical system being integrated with a shock sensing device adapted to sense a shock generated by the attack in any direction and a microchip adapted to receive and store at least one parameter from the microprocessor and to analyze a shock signal generated by the shock based on the at least one parameter; and an output device connected with the microprocessor and adapted to output information based on an analysis result of the shock signal. According to the invention, the shock sensor can detect reliably any attack and has a simple circuit arrangement.

A method of regulating the operation of an electrical system. The electrical system includes, a load, at least one sensor coupled to the load configured to measure at least one characteristic of the load, a solenoid having at least one coil, at least one sensor coupled to the solenoid coil configured to measure at least one characteristic of the coil. A control circuit is coupled to the at least one load sensor and the at least one coil sensor, and includes a memory. The method includes receiving, by the control circuit, at least one load characteristic from the at least one load sensor, determining, by the control circuit, a force sufficient to maintain an electrical contact, based on the at least one load characteristic, and regulating, by the control circuit, a coil current, based on the force and based on the at least one characteristic of the coil.

A method for controlling engine combustion may include receiving a signal of a crank position sensor, determining an angular velocity and an angular acceleration of a crank on the basis of the signal of the crank position sensor, determining a combustion characteristic index for each cylinder using the angular velocity and the angular acceleration of the crank, judging an unstable combustion cylinder using the combustion characteristic index for each cylinder, and changing a combustion factor for controlling the unstable combustion cylinder.

A measurement system for a vehicle includes an acceleration sensor. A first acceleration sensor of a sensor pair is fastened to a vehicle wheel and a second acceleration sensor of the sensor pair is fastened to the same vehicle wheel diametrically opposite with respect to the wheel axle. An evaluation device is connected to the two acceleration sensors of the sensor pair and generates an output measurement signal using the sensor signals from the two acceleration sensors.

A method of detecting collision between a robot and its environment comprises: generating, on the basis of a dynamic model of the robot, a signal representative of the collisions between the robot and environment, the signal being a residual r; carrying out an adaptive high-pass filtering of the residual r; determining, in a recursive manner, an adaptive threshold T composed of at least one first dynamic term T.sub.1 equal to an item of information regarding the parametric uncertainties between the model and real behavior of the robot, the parametric uncertainties being related to a first variable characteristic of the state of the robot among the following variables: position, velocity or acceleration of an articulation of the robot, or a linear or nonlinear function of one of these variables or of a combination; comparing the filtered residual with the adaptive threshold T to deduce the existence or otherwise of a collision.

Devices, methods, and systems for physical contact detection for device pairing are described herein. One device includes a mechanism configured to detect physical contact between the device and a wireless device, a memory, and a processor configured to execute executable instructions stored in the memory to perform a pairing of the wireless device and the device only upon the mechanism detecting the physical contact between the device and the wireless device.

Disclosed are a mobile terminal, a method for the mobile terminal to set a font display state, and a storage medium. The method may comprise: acquiring, by a mobile terminal, a current shake level; searching, by the mobile terminal, a corresponding relationship between a shake level and a font display state according to the current shake level, to acquire a font display state corresponding to the current shake level of the mobile terminal; and setting, by the mobile terminal, a default font display state as the font display state corresponding to the current shake level of the mobile terminal.