A physical quantity sensor includes a substrate, a pair of first elements detecting acceleration in a first direction, and a pair of second elements detecting an acceleration in a second direction. The first element portion includes a first movable portion displaceable in the first direction, first and second movable electrode fingers disposed in the first movable portion, first and second fixing electrode fingers disposed to face the first and second movable electrode fingers, and first and second support portions supporting the first and second fixing electrode fingers. The second element includes a second movable portion displaceable in the second direction, third and fourth movable electrode fingers disposed in the second movable portion, third and fourth fixing electrode fingers disposed to face the third and fourth movable electrode fingers, and third and fourth support portions supporting the third and fourth fixing electrode fingers.

A physical quantity sensor includes a substrate, a pair of first elements detecting acceleration in a first direction, and a pair of second elements detecting an acceleration in a second direction. The first element portion includes a first movable portion displaceable in the first direction, first and second movable electrode fingers disposed in the first movable portion, first and second fixing electrode fingers disposed to face the first and second movable electrode fingers, and first and second support portions supporting the first and second fixing electrode fingers. The second element includes a second movable portion displaceable in the second direction, third and fourth movable electrode fingers disposed in the second movable portion, third and fourth fixing electrode fingers disposed to face the third and fourth movable electrode fingers, and third and fourth support portions supporting the third and fourth fixing electrode fingers.

Methods, systems, and devices for asset travel monitoring are provided. An example method for asset travel monitoring involves monitoring a motion sensor of an asset tracking device located at an asset to determine whether the asset has entered into a travelling state, upon determination that the asset has entered into the travelling state, monitoring the motion sensor to determine whether the asset has left the travelling state, and, upon determination that the asset has left the travelling state, obtaining a present location of the asset tracking device and transmitting the present location to a remote server.

Methods, systems, and devices for asset travel monitoring are provided. An example method for asset travel monitoring involves monitoring a motion sensor of an asset tracking device located at an asset to determine whether the asset has entered into a travelling state, upon determination that the asset has entered into the travelling state, monitoring the motion sensor to determine whether the asset has left the travelling state, and, upon determination that the asset has left the travelling state, obtaining a present location of the asset tracking device and transmitting the present location to a remote server.

An image rendering apparatus includes a light source unit, a detecting unit, an optical scanner, a light source driving unit, and an adjusting unit. The light source driving unit is configured to control the light source unit in such a way that a rendered image is generated by the scan of the optical scanner inside a scan area scanned by the optical scanner and that a characteristic laser beam is emitted at a position and in a pattern corresponding to a rendered content of the rendered image. The rendered image includes an indicator related to a speed of a vehicle. The light source driving unit is configured to control the light source unit to emit the characteristics detecting laser beam in such a way that a scale for the indicator related to the speed of the vehicle is rendered.

A device includes a signaling means and a motion sensor, and logic for activating or controlling the signaling means in response to a sensed motion according to an embedded logic. The device may be used as a toy, and may be shaped like a play ball or as a handheld unit. It may be powered from a battery, either chargeable from an AC power source directly or contactless by using induction or by converting electrical energy from harvested kinetic energy. The embedded logic may activate or control the signaling means, predictably or randomly, in response to sensed acceleration magnitude or direction, such as sensing the crossing of a preset threshold or sensing the peak value. The visual means may be a numeric display for displaying a value associated with the count of the number of times the threshold has been exceeded or the peak magnitude of the acceleration sensed.

A device includes a signaling means and a motion sensor, and logic for activating or controlling the signaling means in response to a sensed motion according to an embedded logic. The device may be used as a toy, and may be shaped like a play ball or as a handheld unit. It may be powered from a battery, either chargeable from an AC power source directly or contactless by using induction or by converting electrical energy from harvested kinetic energy. The embedded logic may activate or control the signaling means, predictably or randomly, in response to sensed acceleration magnitude or direction, such as sensing the crossing of a preset threshold or sensing the peak value. The visual means may be a numeric display for displaying a value associated with the count of the number of times the threshold has been exceeded or the peak magnitude of the acceleration sensed.

A device includes a signaling means and a motion sensor, and logic for activating or controlling the signaling means in response to a sensed motion according to an embedded logic. The device may be used as a toy, and may be shaped like a play ball or as a handheld unit. It may be powered from a battery, either chargeable from an AC power source directly or contactless by using induction or by converting electrical energy from harvested kinetic energy. The embedded logic may activate or control the signaling means, predictably or randomly, in response to sensed acceleration magnitude or direction, such as sensing the crossing of a preset threshold or sensing the peak value. The visual means may be a numeric display for displaying a value associated with the count of the number of times the threshold has been exceeded or the peak magnitude of the acceleration sensed.

A device includes a signaling means and a motion sensor, and logic for activating or controlling the signaling means in response to a sensed motion according to an embedded logic. The device may be used as a toy, and may be shaped like a play ball or as a handheld unit. It may be powered from a battery, either chargeable from an AC power source directly or contactless by using induction or by converting electrical energy from harvested kinetic energy. The embedded logic may activate or control the signaling means, predictably or randomly, in response to sensed acceleration magnitude or direction, such as sensing the crossing of a preset threshold or sensing the peak value. The visual means may be a numeric display for displaying a value associated with the count of the number of times the threshold has been exceeded or the peak magnitude of the acceleration sensed.

A method and apparatus for monitoring the motion of an oscillating mechanical device using one or more internet of things (IoT) devices. An exemplary method for monitoring an oscillating mechanical device includes collecting motion data from an accelerometer attached to a moving part in the oscillating mechanical device. A power spectrum for the oscillating mechanical device is calculated from the motion data. A mask is applied over the power spectrum to determine if a device is having operational difficulties.