摘要:
A method for localizing an object moving in an unknown environment. The method includes providing k position marks at undetermined positions p1, p2, . . . , pk that are spaced apart from one another, where {p1, . . . , pk}ε, where k is a natural number greater than or equal to 3, and repeatedly measuring the distances between the object and each of the position marks independently of one another at uncontrolled instants, such that distance values {r1, . . . , rn}ε are present at instants {t1, . . . , tn}ε. The method further includes determining a motion curve x(t)ε according to x ( t ) = ∑ i = 1 n α i k ( t , t i ) , where n represents a number of distance measurements used and each function k(t, ti) is a positively defined kernel function, and where {α1, . . . , αn}ε are coefficient vectors that are estimated using smoothness conditions based on a regularization term formed with the kernel functions.
摘要:
The present disclosure provides a method for obtaining degradation of a battery comprising the steps of collecting data of the battery and data related to the degradation of the battery; processing the collected data to obtain parameters related to the degradation of the battery; creating and updating a degradation model for the battery with the obtained parameters; and computing the degradation of the battery by using the degradation model and the parameters.
摘要:
A method of measuring surface sets on an object surface with a coordinate measurement device and a target scanner, includes providing the scanner having a body, a first retroreflector incorporating a pattern, a projector, a camera, and a processor, providing the device, selecting the source pattern of light; projecting the source pattern of light onto the object to produce the object pattern of light; imaging the object pattern of light onto the photosensitive array to obtain the image pattern of light; obtaining the pixel digital values for the image pattern of light; sending the first beam of light from the device to the first retroreflector; receiving the second beam of light from the first retroreflector; measuring the orientational and translational sets based at least in part on the second beam of light; determining the surface sets corresponding to the plurality of collinear pattern elements; and saving the surface sets.
摘要:
A monitoring system maintains multiple counts. Each of these counts is associated with a range and indicates a number of network transactions that occurred in a storage area network (SAN) during a time period with values that are within the associated range. When the monitoring system identifies the occurrence of a network transaction between devices in the SAN, the monitoring system determines a time duration and/or a size of the network transaction. The monitoring system identifies a count associated with a time range that includes the determined time duration and increments the identified count. Additionally, the monitoring system identifies a count associated with a size range that includes the determined size and increments the identified count.
摘要:
Disclosed is an apparatus and method for managing a battery that may manage a surrounding environment and a usage history of the battery. The battery management apparatus senses a temperature of an environment to which the battery is exposed, and stores a period of time during which the battery is exposed to a high temperature when the sensed temperature corresponds to a preset first or second area. In this instance, the battery management apparatus may determine whether the battery is simply exposed to the high temperature or the battery is charged or discharged while exposed to the high temperature, and store a usage time together. According to the present disclosure, information about a time domain affecting the life or performance of the battery may be calculated in consideration of the temperature environment to which the battery is exposed.
摘要:
A delivery server comprises: a reception unit configured to receive sets of meter indication data of a plurality of gas meters; a storage device configured to store the respective sets of meter indication data; a gas usage calculating unit configured to calculate a gas usage on a basis of comparison between corresponding sets of meter indication data; a first rate-of-change calculating unit configured to calculate a rate of change in a past gas usage consumed in each of a plurality of supply facilities on a basis of comparison between a plurality of gas usages in a time of earlier than a meter indication date of the received sets of meter indication data by a predetermined period of time; and a prediction unit configured to modify the gas usage in accordance with the rate of change and predict the modified gas usage as a prospective gas usage to be consumed.
摘要:
The present invention relates to a maintenance method for a piece of equipment (2) of a vehicle (1) including an anti-vibration system (3). In the method, a device (10) determines a first number (D1) of hours of operation of said equipment (2) while said anti-vibration system (3) was operating in a normal mode of operation and a second number (D2) of hours of operation while said anti-vibration system (3) was operating in a degraded mode of operation. Said second number (D2) is then converted into a third number (D3) by applying a predetermined conversion relationship. Under such circumstances, action is taken on said equipment (2) when the sum of the first number (D1) plus the third number (D3) reaches a predetermined threshold (D0).
摘要:
Method and apparatus are provided to determine directional calibration parameters of an object. A method includes: disposing a tracking marker to the object, disposing the object on a calibration tool, rotating the object around its set linear axis while keeping the set linear direction unchanged, determining at least two three-dimensional rotation matrices of the tracking marker via a position tracking apparatus, and using the three-dimensional rotation matrices to determine the directional calibration parameters with the formula of two-point position relationship or rectilinear direction rotation relationship in the three-dimensional space. The action direction of the object is determined based on the determined directional calibration parameters and the current three-dimensional rotation matrix of the tracking marker. Without placing the object in a known direction or determining two points on the direction, the disclosed methods provide convenient ways to determine the directional calibration parameters, and to determine the action direction of the object.
摘要:
A method, implemented on a computer, for calculating vertical trend curve uncertainty of spatially correlated reservoir data. The method includes inputting, into the computer, a sample reservoir data comprising correlated data; applying, using the computer, a variogram to the sample reservoir data to select a plurality of subsets of data, the subsets of data being substantially less correlated than the sample reservoir data; and applying, using the computer, a bootstrap process on each of the plurality of subsets of data to obtain a plurality of bootstrap data sets from each of the plurality of subsets of data. The method further includes calculating vertical trend curves for each of the obtained plurality of bootstrap data sets, ranking the vertical trend curves by using a selected statistical parameter to obtain ranked vertical trend curves, and characterizing the uncertainty based on the ranked vertical trend curves.
摘要:
A log file analysis computer includes a processor and a memory coupled to the processor. The memory includes computer readable program code that when executed by the processor causes the processor to perform operations. The operations include accessing a log file containing lines of data entries, and identifying which of the data entries in the log file are associated with which of a plurality of field types. A subset of the data entries in the log file are selected based on the associations between the data entries and the field types. A modified log file is generated based on the subset of the data entries.