摘要:
Sensors (1) for sensing accelerations are provided with accelerometers (11) for measuring accelerations, with magnetometers (12) for measuring magnetic fields, and with processors (13) for, in response to acceleration measurements and magnetic field measurements, judging the accelerations. The processors (13) may comprise acceleration units (14) for comparing acceleration signals with acceleration thresholds, and magnetic field units (15) for comparing changes of magnetic field signals per time interval with rate thresholds. The processors (13) may further comprise decision units (17) for, in response to comparison results from the acceleration units (14) and the magnetic field units (15), deciding whether a total acceleration forms part of a tumbling free-fall or a non-tumbling free-fall or not. The processors (13) may yet further comprise distinguishing units (18) and control units (19). Devices (2) may comprise sensors (1).
摘要:
A free-fall detector device includes an inertial sensor (8), a detection circuit (21) associated to the inertial sensor (8), and a signal source (20) for supplying a read signal to the inertial sensor (8). The device moreover includes: a storage element (30), selectively connectable to the detection circuit (21) for storing a feedback signal (V FBX ) generated by the detection circuit (21) in response to the read signal supplied to the inertial sensor (8); and a feedback circuit (32a, 32b, 24, 36) coupled to the storage element (30) for supplying the feedback signal (V FBX ) to the inertial sensor (8) so that the detection circuit (21) generates at least one detection signal (V XO ) in response to the feedback signal (V FBX ) supplied to the inertial sensor (8).
摘要:
In an integrated free-fall detection device (16) for a portable apparatus (10), an acceleration sensor (20) generates acceleration signals (A x , A y , A z ) correlated to the components of the acceleration of the portable apparatus along three detection axes (x, y, z). A dedicated purely hardware circuit (24), connected to the acceleration sensor (20), generates in a continuous way and in real-time a free-fall detection signal (F). The free-fall detection signal (F) has a first logic value in the event that the acceleration signals (A x , A y , A z ) are simultaneously lower than a respective acceleration threshold (A th ), and is sent to a processor unit (18) of the portable apparatus (10) as an interrupt signal to activate appropriate actions of protection for the portable apparatus (10). The acceleration sensor (20) and the dedicated purely hardware circuit (24) are integrated in a single chip, and the acceleration sensor (20) is made as a MEMS.
摘要:
The present invention discloses a method and an apparatus for automatically backing up data, relates to the field of communications technologies, and is used to solve a problem that a mobile phone is damaged due to falling down of the mobile phone, and consequently data of a user is lost. The method provided in the present invention includes: detecting whether a terminal is falling down; and if it is detected that the terminal is falling down, triggering a data backup operation and backing up data that needs to be backed up in the terminal. The present invention is applicable to the field of communications technologies, and is used to back up data of a user.
摘要:
In an integrated free-fall detection device (16) for a portable apparatus (10), an acceleration sensor (20) generates acceleration signals (A x , A y , A z ) correlated to the components of the acceleration of the portable apparatus along three detection axes (x, y, z). A dedicated purely hardware circuit (24), connected to the acceleration sensor (20), generates in a continuous way and in real-time a free-fall detection signal (F). The free-fall detection signal (F) has a first logic value in the event that the acceleration signals (A x , A y , A z ) are simultaneously lower than a respective acceleration threshold (A th ), and is sent to a processor unit (18) of the portable apparatus (10) as an interrupt signal to activate appropriate actions of protection for the portable apparatus (10). The acceleration sensor (20) and the dedicated purely hardware circuit (24) are integrated in a single chip, and the acceleration sensor (20) is made as a MEMS.
摘要:
A transducer (20) includes a movable element (24), a self-test actuator (22), and a sensing element (56, 58). The sensing element (56, 58) detects movement of the movable element (24) from a first position (96) to a second position (102) along an axis perpendicular to a plane of the sensing element (56, 58). The second position (102) results in an output signal (82) that simulates a free fall condition. A method (92) for testing a protection feature of a device (70) having the transducer (20) entails moving the movable element (24) to the first position (102) to produce a negative gravitational force detectable at the sensing element (56, 68), applying a signal (88) to the actuator (22) to move the movable element (24) to the second position (102) by the electrostatic force (100) , and ascertaining an enablement of the protection feature in response to the simulated free fall.
摘要:
A structure for prohibiting a hard disc from shifting an active state with environmental problems is provided to avoid damages of an HDD or vanishing of its recording data. Whether data recording or reproducing is safely executed or not by making use of the hard disc is judged on a basis of information detected by a fall sensor, a temperature sensor, etc. If the judgment shows that safe data recording or reproducing is possible, the hard disc is shifted from a halt state to an active state. With this structure, the hard disc is prevented from shifting to active state with environmental problems of falling, a high temperature, humidity, or the like, so that damages of the HDD or vanishing of its recording data can be prevented.
摘要:
Described herein is a method for detecting an anomalous event, like a crash or a free fall, in an electronic apparatus (1) , which envisages the steps of: detecting at least one acceleration signal (Acc) indicative of an acceleration acting on the electronic apparatus (1); and detecting the anomalous event as a function of the acceleration signal (Acc). The step of detecting the anomalous event envisages the steps of: monitoring a normal-mode condition of the electronic apparatus (1); and detecting the anomalous event at least based on the exit of the electronic apparatus (1) from the normal-mode condition. In particular, the step of monitoring a normal-mode condition envisages the steps of: determining a change or variation of acceleration (”Acc) associated to the acceleration signal (Acc) ; executing a comparison between the variation of acceleration (”Acc) and an acceleration threshold (THA); and determining the permanence in, or exit from, the normal-mode condition according to the result of the comparison. Also described is a detection device (6) implementing the above method.