Abstract: A method for testing to what extent the dynamics of a technical system starting from a predetermined operation situation are completely described through the acquisition of the state of the technical system with multiple sensors in combination with at least one differential equation. The method includes establishing a dynamics function describing the predetermined operation situation and dynamics of the technical system; forming the at least one differential equation from the dynamics function; ascertaining initial conditions, boundary conditions and/or regional conditions based on the predetermined operation situation for solving the at least one differential equation; testing whether the differential equation is analytically solvable; and in response to a positive determination, determining that the acquisition with the sensors and the at least one differential equation completely describe the dynamics of the system.

Abstract: A method for controlling a robot device. For each processing module of one or more processing modules of a control system of the robot device, the method includes: representing each signal value of a plurality of signal values received or generated by the processing module as at least one first binary value that indicates whether the signal value, or a respective value which is derived from and characterizes the signal value, has a respective standard value or not; generating a plurality of random second binary values; ascertaining a parameter of a probability distribution that describes the joint distribution of a set of binary values containing the first binary values and the second binary values; ascertaining an evaluation of the functionality of the processing module based on the ascertained parameter; setting an operating mode of the control system depending on said evaluation; and controlling the robot device using an output.

Abstract: A method for rating the relevance of a test case for assessing the behavior of a technical system, whose dynamics are described by a scalar dynamics function in the current state of the system, in the control currently impressed upon the system, as well as in the time. In the method: an optimized control problem is set up, in which the scalar dynamics function and/or an integral thereof with respect to time, is to be minimized under the boundary condition that the dynamics of the technical system in the first order is limited to a function; it is ascertained how closely the test case approaches a solution of the optimized control problem; and the closer the test case approaches a solution of the optimized control problem, the more relevant the test case is rated for the assessment of the behavior of the technical system.

Abstract: A method for the assessment of the operating state of a technical system. The operating state is characterized by an aggregate variable whose value results through the interaction of basic variables according to the configuration of the technical system. In the method: an impact function, which indicates dependence of the aggregate variable on the basic variables is provided; the impact function is factorized to form a product of contributions, which depend on different subsets of the basic variables; a graph is formed, each node corresponding to a contribution, an edge extends in relation to each basic variable on which this contribution depends, at least one edge that corresponds to a basic variable on which two or more contributions depend connects two nodes corresponding to such contributions; the Laplace matrix of this graph is ascertained; an extremal eigenvalue of this Laplace matrix is ascertained as the assessment.

Abstract: A method for validating a software, particularly a driver-assistance software. The method includes receiving of a sensor signal that is to be processed by the software; determining of a reference signal by an adaptive filter based on the sensor signal, the reference signal representing an anticipated sensor signal; determining an error signal based on the sensor signal and the reference signal, the error signal representing a performance of the software; determining an anti-sensor signal by a machine-learning unit based on the sensor signal, the machine-learning unit being trained with sensor signals already evaluated; controlling of the adaptive filter by a control unit based on the determined error signal and the adaptive anti-sensor signal; and validation of the software based on the determined error signal.

Abstract: A method for rating the relevance of a test case for assessing the behavior of a technical system, whose dynamics are described by a scalar dynamics function in the current state of the system, in the control currently impressed upon the system, as well as in the time. In the method: an optimized control problem is set up, in which the scalar dynamics function and/or an integral thereof with respect to time, is to be minimized under the boundary condition that the dynamics of the technical system in the first order is limited to a function; it is ascertained how closely the test case approaches a solution of the optimized control problem; and the closer the test case approaches a solution of the optimized control problem, the more relevant the test case is rated for the assessment of the behavior of the technical system.

Abstract: A magnetic parking sensor including a detection device for detecting geomagnetic measured values in the region of a parking space in three coordinates; a first-in, first-out memory device into which the geomagnetic measured values are loadable; and an ascertainment device. The ascertainment device is configured to map the x and y components of the geomagnetic measured values into complex numbers, the complex numbers being ascertainable depending on the variability of the defined number of the geomagnetic measured values; to define a number system having a defined number of elements in accordance with the variability of the geomagnetic measured value and of the complex numbers; and to ascertain an availability state of the parking space by ascertaining a root ?n of the polynomial ?3?(2n?1)?2?(n?1)2??(n2+1), where n=variability of the geomagnetic measured values, ?=auxiliary variable of the number theory.

Abstract: A device of or attached to a roller body determines a rotational frequency of the roller body (or other object) rotating about an axis of rotation includes an acceleration sensor that detects an acceleration signal of an acceleration in a first direction extending in a radial or tangential direction to the axis of rotation of the roller body; and an electronic processing unit and configured to low-pass and high-pass, particularly adaptively high-pass filter, the detected acceleration signal, perform a derivation, with respect to time, of the filtered signal, optimize the signal with a subsequent absolute-amount generation and with moving averaging, and ascertain a frequency of the filtered acceleration signal, which corresponds to the rotational frequency of the roller body.

Abstract: A computer-implemented method for determining criticality values of a technical system. The method includes: specifying a reliability of the technical system that is to be satisfied; providing a fuzzy fault tree for the technical system, the fuzzy fault tree comprising a fuzzy top event and multiple fuzzy basic events and logical programmable fuzzy AND/OR operators; transforming the fuzzy fault tree into a flexible neural network comprising a tree structure; determining an optimized flexible neural network by carrying out a learning method for optimizing the flexible neural network, the optimized flexible neural network achieving the reliability of the technical system that is to be satisfied; deriving criticality values of the fuzzy basic events from the optimized flexible neural network.

Abstract: A method for operating a magnetic field sensor and an associated magnetic field sensor system. The method includes: detecting an output signal of the magnetic field sensor that describes a magnetic field detected by the magnetic field sensor; establishing an adaptive filter function of an adaptive filter based on a model that describes an influence of specific objects on the output signal; filtering the output signal with the aid of the adaptive filter; ascertaining a deviation between the output signal and the output signal filtered with the aid of the adaptive filter; and detecting a presence of an object to be detected, based on the ascertained deviation.

Abstract: A method for determining the validity of radar measured values in order to determine an occupancy state of a parking space. A device that includes at least one radar sensor and a processing unit, the processing unit being configured to carry out the method. A parking area that includes at least one parking space, the parking space including the device.

Abstract: A computer-implemented method for testing a technical system, in particular software, hardware, or an embedded system, in real time. The technical system encompasses a plurality of in particular technical components. The technical system is represented by a fuzzy fault tree topology Aki. Starting from a fuzzy top event Xk for determining priorities of base events, the following steps are carried out: providing a fuzzy membership function matrix Wi? of the base events, where ?=1, and carrying out an iterative process, each iteration ?, where ?=1, 2, 3, . . . , n, encompassing the following steps: determining an auxiliary matrix Cki, taking into account the fuzzy top event Xk, the fuzzy fault tree topology Aid, and the fuzzy membership function matrix Wi?, using an iterative algorithm, and determining (the fuzzy membership function matrix Wi?+1 based on the auxiliary matrix Cki, using a maximum likelihood method.

Abstract: A method for determining an occupancy state of a parking space of a parking area is described. A device that includes at least one radar sensor and a processing unit, the processing unit being configured to carry out the method, are described. Furthermore, a parking area that includes at least one parking space, the parking space including the device is described.

Abstract: A magnetic parking sensor including a detection device for detecting geomagnetic measured values in the region of a parking space in three coordinates; a first-in, first-out memory device into which the geomagnetic measured values are loadable; and an ascertainment device. The ascertainment device is configured to map the x and y components of the geomagnetic measured values into complex numbers, the complex numbers being ascertainable depending on the variability of the defined number of the geomagnetic measured values; to define a number system having a defined number of elements in accordance with the variability of the geomagnetic measured value and of the complex numbers; and to ascertain an availability state of the parking space by ascertaining a root ?n of the polynomial ?3?(2n?1)?2?(n?1)2??(n2+1), where n=variability of the geomagnetic measured values, ?=auxiliary variable of the number theory.

Abstract: A device of or attached to a roller body determines a rotational frequency of the roller body (or other object) rotating about an axis of rotation includes an acceleration sensor that detects an acceleration signal of an acceleration in a first direction extending in a radial or tangential direction to the axis of rotation of the roller body; and an electronic processing unit and configured to low-pass and high-pass, particularly adaptively high-pass filter, the detected acceleration signal, perform a derivation, with respect to time, of the filtered signal, optimize the signal with a subsequent absolute-amount generation and with moving averaging, and ascertain a frequency of the filtered acceleration signal, which corresponds to the rotational frequency of the roller body.

Abstract: A device for detecting a driving event of a vehicle, having a triaxial acceleration sensor and a processing unit. The device may be fixedly installed on the vehicle. The processing unit is configured to detect a plurality of acceleration values within a specific time span using the acceleration sensor, carry out a wavelet transform of the acceleration values to determine first coefficients, and compare the first coefficients at least to stored second coefficients. The second coefficients represent a predefined driving event. The processing unit is configured to detect the driving event represented by the second coefficients as an occurred driving event when the first coefficients are in agreement with the second coefficients, and is configured to determine characteristic parameters of the detected acceleration values, to ascertain a specific mother wavelet as a function of the characteristic parameters, and to carry out the wavelet transform based on the ascertained mother wavelet.

Abstract: A method for determining an occupancy state of a parking space of a parking facility, including the following method steps: a. detecting magnetic field measured values in the surroundings of the parking space along an axis with the aid of a magnetic field sensor within a predefined duration; b. forming a Poincaré diagram as a function of the magnetic field measured values detected in method step a; c. determining a line of best fit through the points of the Poincaré diagram formed in method step b, with the aid of linear regression; d. determining differences in the vertical direction between the line of best fit and the respective points; e. calculating a mean value of the differences determined in method step d; and f. determining the occupancy state of the parking space as a function of the mean value calculated in method step e.

Abstract: A method for validating a software, particularly a driver-assistance software. The method includes receiving of a sensor signal that is to be processed by the software; determining of a reference signal by an adaptive filter based on the sensor signal, the reference signal representing an anticipated sensor signal; determining an error signal based on the sensor signal and the reference signal, the error signal representing a performance of the software; determining an anti-sensor signal by a machine-learning unit based on the sensor signal, the machine-learning unit being trained with sensor signals already evaluated; controlling of the adaptive filter by a control unit based on the determined error signal and the adaptive anti-sensor signal; and validation of the software based on the determined error signal.

Abstract: A method for operating a magnetic field sensor and an associated magnetic field sensor system. The method includes: detecting an output signal of the magnetic field sensor that describes a magnetic field detected by the magnetic field sensor; establishing an adaptive filter function of an adaptive filter based on a model that describes an influence of specific objects on the output signal; filtering the output signal with the aid of the adaptive filter; ascertaining a deviation between the output signal and the output signal filtered with the aid of the adaptive filter; and detecting a presence of an object to be detected, based on the ascertained deviation.

Abstract: A method for determining an occupancy state of a parking space of a parking facility, including the following method steps: a. detecting magnetic field measured values in the surroundings of the parking space along an axis with the aid of a magnetic field sensor within a predefined duration; b. forming a Poincaré diagram as a function of the magnetic field measured values detected in method step a; c. determining a line of best fit through the points of the Poincaré diagram formed in method step b, with the aid of linear regression; d. determining differences in the vertical direction between the line of best fit and the respective points; e. calculating a mean value of the differences determined in method step d; and f. determining the occupancy state of the parking space as a function of the mean value calculated in method step e.