SYSTEM AND METHOD FOR A MOTION SENSING DEVICE
The 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.
1 . A device for signaling in response to a sensed motion, the device having a single enclosure, and in said single enclosure comprising:
an accelerometer mechanically secured to said enclosure for sensing the device acceleration; an annunciator mechanically secured to said enclosure for signaling to a person or an animal using visual or audible signaling;
a controller coupled between said accelerometer and said annunciator for activating or controlling said annunciator in response to the sensed device acceleration according to a predetermined logic; and
a power source connected to power said accelerometer, said annunciator and said controller, wherein the power source includes a battery, and wherein the battery is a primary type or a rechargeable type, and wherein the device further comprising a battery compartment mechanically secured to said enclosure for housing the battery.
2 . The device according to claim 1 , wherein said single enclosure includes a securely removable cover, so that said when the cover is removed the battery compartment can be accessed for replacing the battery.
3 . The device according to claim 1 , further comprising:
a power connector installed on said single enclosure external surface and connectable to a power source; and
a battery charger coupled between said power connector and said battery for charging said battery from said power source.
4 . The device according to claim 3 , further operative for being powered from a domestic AC power outlet, the device further comprising an AC/DC adapter powered from said AC power outlet, the AC/DC adapter comprising a step-down transformer and an AC/DC converter for DC powering said battery charger, the AC/DC adapter coupled to said battery charger for charging said battery from said AC power.
5 . The device according to claim 1 , wherein said power source comprising a generator mounted on said single enclosure.
6 . The device according to claim 5 wherein the generator is operative to convert the device kinetic energy to an electrical energy.
7 . The device according to claim 6 , wherein the generator comprises a coil and a magnetic field, and wherein relative movement of the coil and the magnetic field is generated in response to the device motion.
8 . The device according to claim 1 , wherein the power source includes a rechargeable battery, and wherein the device further comprises a battery charger connected for charging said rechargeable battery, and wherein the device is operative to contactless charging said rechargeable battery.
9 . The device according to claim 8 , wherein said contactless charging is based on induction, and wherein the device further includes an induction coil coupled to said battery charger for receiving AC power and charging said rechargeable battery when the device is put in an electromagnetic field.