摘要:
Method for determining states of a system by means of an estimation filter, in which first state values are determined by calculating a mean value of a probability distribution for the states, in which a probability for deviation for the case that the first state values deviate from the actual states of the system is calculated, and in which the states of the system are measured as state data. In the method the first state values are corrected by means of the state data then, if the probability for deviation is larger than a threshold.
摘要:
A system and method for estimating the residual fatigue life of a load cell includes storing, in a memory, fatigue life reference data associated with a test load cell. A predetermined number of data storage bins are provided. Each data storage bin is representative of a predefined value range of peak loads. Peak loads applied to an in-service load cell are detected, and each is stored in an appropriate one of the data storage bins. A number of load cycles of the in-service load cell are calculated based on the detected peak loads stored in each of the data storage bins. An estimate of the residual life of the in-service load cell is calculated from the fatigue life reference data and the calculated number of load cycles of the in-service load cell.
摘要:
A sensor system comprises a tag. The tag comprises at least one radio-frequency chip and a first antenna. The chip comprises a memory element, the memory element comprising electrical storage of a binary coded word comprising at least one bit, and output terminals. The tag further comprises at least one conductive polymeric system disposed in electrical communication with at least one output terminal of the chip and adapted to change electrical state in association with a predetermined change in an environment of the conductive polymeric system. The first antenna is disposed in electrical communication with the output terminal(s) of the chip and the conductive polymeric system.
摘要:
Digitally sampled real or sampled and down-converted complex data representing an RF signal are received. One or more statistical computations are calculated for each group of N data values. The one or more statistical computations are calculated for groups of N data values until a particular number of data values (K) are acquired. The one or more statistical computations calculated for each group are computed and stored at the time of acquisition and are available for immediate viewing on a display.
摘要:
Method for determining a state variable x from at least one sensor value by a cost function prepared for a measured value y for implementation in an arithmetic unit of a sensor system having at least one sensor and wherein the cost function depends on the respective state x to be measured and gives a deviation of an actual measured value from the calibration as a function of state x in order to determine the sought state x from this minimum. For the cost function, at least one approximation function is set up on the basis of at least one approximation region within the state region x, by which an approximation of the cost function is carried out with approximation functions with negligible error, wherein the sums of the approximation regions cover the entire relevant state region, and at least all local minima are determined on the basis of the approximation, in a selection of approximation regions, wherein optionally a global minimum is determined from the comparison of local minima.
摘要:
A method is for determining the offset value of the output signal of a vehicle sensor. The values of the output signal of the vehicle sensor are determined. The value range of the output signal of the vehicle sensor is divided into at least two partial ranges (intervals, classes). The values of the output signal are allocated to the partial ranges. The number of number quantities representing the values of the output signal allocated to the partial ranges is determined. The number quantities are determined by at least one low-pass filter.
摘要:
A method for extracting a signal of interest from a signal generated from at least one subject, comprises the steps of (A) obtaining a time-series signal generated from the subject as a data group consisting of a plurality of pieces of data, (B) obtaining a plurality of extracted data groups from the data group, wherein each extracted data group comprises a predetermined number of pieces of data selected from the data group, (C) calculating standard deviations of the plurality of extracted data groups to obtain a standard deviation group, and (D) referencing each standard deviation included in the standard deviation group and selecting the signal of interest.
摘要:
A method is for determining the offset value of the output signal of a vehicle sensor. The values of the output signal of the vehicle sensor are determined. The value range of the output signal of the vehicle sensor is divided into at least two partial ranges (intervals, classes). The values of the output signal are allocated to the partial ranges. The number of number quantities representing the values of the output signal allocated to the partial ranges is determined. The number quantities are determined by at least one low-pass filter.
摘要:
The previously presented teaching of the invention describes a method for the evaluation of sensor signals with the purpose of producing plausible and physiologically satisfying switching impulses for interrupting or for opening the air supply in ventilation systems, particularly for the ventilation of passenger cabins in motor vehicles, depending on the pollutant content of the ambient air established by one or more sensors.
摘要:
A method and apparatus for determining the parameters (i.e., proportion, mean, and standard deviation) of constituent subpopulations within a sample population of particles which contains overlapping populations. The invention includes the use of the EM algorithm, an iterative process which estimates the probability that a particle belongs to any given overlapping subpopulation.