A movable device and a method for monitoring an operation cycle of an appliance are disclosed. For example, the movable device includes an operational detection component to receive operational feedback of the appliance, wherein the operational feedback comprises a vibration of the appliance and an audible signal of the appliance, a wireless interface to establish a wireless connection with a mobile endpoint device, a processor in communication with the operational detection component to determine when the appliance is in the operation cycle based upon the operational feedback and to generate a notification message that is sent to the mobile endpoint device when the appliance has completed the operation cycle, a housing enclosing the operation detection component, the wireless interface and the processor and a connection component coupled to the housing to removably couple the apparatus to the appliance.

The invention relates to a method for the secured digital transmission of current measurement values and to a battery (1) and a battery controller (10) which are suitable for carrying out the method. The method has the steps of detecting (S1, S2) an amplitude of a battery current (I.sub.B) in a battery (1) using a first and a second sensor (2, 3), generating (S3, S4) a first and a second bit sequence, each of which describes the detected amplitude, generating a mirrored second bit sequence (21) by reversing (S5) a sequence of the bits provided by the second bit sequence (20), simultaneously transmitting (S6) the first bit sequence via a first data bus (5) and the mirrored second bit sequence (21) via a second data bus (6) to a battery controller (10), generating a second bit sequence (20) by reversing (S7) a sequence of the bits provided by the mirrored second bit sequence (21) after the simultaneous transmission (S6), and finally detecting (S8) a possible error in the first bit sequence or the second bit sequence (20) by comparing the first bit sequence (20) with the second bit sequence (21). Transmission faults are thus detected in particular in a transmission path between the sensors of the battery and the battery controller, said faults being caused by a common disturbance. Additionally, faults can also be detected which are caused by a disturbance that only affects one of the sensors or a part of the transmission path.

The invention relates to a method for the secured digital transmission of current measurement values and to a battery (1) and a battery controller (10) which are suitable for carrying out the method. The method has the steps of detecting (S1, S2) an amplitude of a battery current (I.sub.B) in a battery (1) using a first and a second sensor (2, 3), generating (S3, S4) a first and a second bit sequence, each of which describes the detected amplitude, generating a mirrored second bit sequence (21) by reversing (S5) a sequence of the bits provided by the second bit sequence (20), simultaneously transmitting (S6) the first bit sequence via a first data bus (5) and the mirrored second bit sequence (21) via a second data bus (6) to a battery controller (10), generating a second bit sequence (20) by reversing (S7) a sequence of the bits provided by the mirrored second bit sequence (21) after the simultaneous transmission (S6), and finally detecting (S8) a possible error in the first bit sequence or the second bit sequence (20) by comparing the first bit sequence (20) with the second bit sequence (21). Transmission faults are thus detected in particular in a transmission path between the sensors of the battery and the battery controller, said faults being caused by a common disturbance. Additionally, faults can also be detected which are caused by a disturbance that only affects one of the sensors or a part of the transmission path.

A checking device for a data preparation unit, including a preparation element for preparing sensor data for a data transmission; and a comparator for comparing the sensor data with the prepared sensor data; a fault of the data preparation unit being detected in the event that the prepared sensor data do not match the sensor data.

A sensor network system including: a sensor object; a plurality of sensor node communication terminals mounted on the sensor object, and respectively including a plurality of sensor elements each having a function equivalent to one another; a data server configured to store sensor information of the plurality of the sensor elements for plurality of every sensor node communication terminals; and a data management unit configured to analyze the sensor information stored in the data server, wherein the data management unit executes self-diagnostics of failures of the plurality of the sensor elements and the plurality of the sensor node communication terminals in accordance with a failure diagnosis algorithm, and thereby maintenance of the sensor element or sensor node communication terminal determined to be in failure can be performed.

A transmission device for transmitting a sensor signal relating to a physical variable, including: an input interface for inputting the sensor signal; a signal generator for generating a comparison signal; a data processing unit to combine the sensor signal and the comparison signal to form a modified sensor signal; and an output interface which can be coupled to a signal path to output the modified sensor signal, in which the comparison signal changes over time in a predetermined manner over a range of values, so as to permit a receiver to detect an erroneous sensor signal or an erroneous transmission using the transmitted comparison signal. Also described are a related receiver, a related system, a related vehicle, a related method, and a related computer program.

A transmission device for transmitting a sensor signal relating to a physical variable, including: an input interface for inputting the sensor signal; a signal generator for generating a comparison signal; a data processing unit to combine the sensor signal and the comparison signal to form a modified sensor signal; and an output interface which can be coupled to a signal path to output the modified sensor signal, in which the comparison signal changes over time in a predetermined manner over a range of values, so as to permit a receiver to detect an erroneous sensor signal or an erroneous transmission using the transmitted comparison signal. Also described are a related receiver, a related system, a related vehicle, a related method, and a related computer program.

A vehicle key testing device includes a housing, an antenna, and an electrical input. The housing defines an interior space and is configured to have a vehicle key positioned into the interior space. The antenna is mounted in the interior space. The electrical input is configured to activate at least one wireless aspect of the vehicle key.

A vehicle key testing device includes a housing, an antenna, and an electrical input. The housing defines an interior space and is configured to have a vehicle key positioned into the interior space. The antenna is mounted in the interior space. The electrical input is configured to activate at least one wireless aspect of the vehicle key.

A method and apparatus for content management are provided. The method and apparatus efficiently manage content so as to provide a convenient user interface in an electronic device supporting content playback, browsing and storage. The method includes obtaining attribute information of a content item from a storage device, registering the attribute information in a content database, determining content items to be played back by a content player using the attribute information registered in the content database, creating a content list on the basis of the determined content items, displaying the content list, and playing back a content item selected by a user from the content list.