An information providing device includes: a reception unit configured to receive operation information on a power supply device from the power supply device that supplies power to an electric apparatus detachably connected thereto; an evaluation unit configured to evaluate how the power supply device is used based on the received operation information; and a provision unit configured to provide a user of the power supply device with information based on an evaluation result of the evaluation unit.

The invention relates to a method of monitoring a machine in which a mechanical system is moved by a motor, wherein the mechanical system comprises more than two components coupled to one another, wherein one of the components comprises the motor, wherein at least the two components move differently when the motor drives the mechanical system, and wherein at least one movement factor of one of the components of the mechanical system is determined repeatedly; at least one dynamic factor of one of the components of the mechanical system is determined repeatedly; the movement factors of the remaining components of the mechanical system are calculated by means of a model of the mechanical system; and separate mechanical parameters for the components of the mechanical system are determined from the determined movement factor, from the determined dynamic factor, and from the calculated movement factors.

The invention relates to a method of monitoring a machine in which a mechanical system is moved by a motor, wherein the mechanical system comprises more than two components coupled to one another, wherein one of the components comprises the motor, wherein at least the two components move differently when the motor drives the mechanical system, and wherein at least one movement factor of one of the components of the mechanical system is determined repeatedly; at least one dynamic factor of one of the components of the mechanical system is determined repeatedly; the movement factors of the remaining components of the mechanical system are calculated by means of a model of the mechanical system; and separate mechanical parameters for the components of the mechanical system are determined from the determined movement factor, from the determined dynamic factor, and from the calculated movement factors.

A design method for optimization of a transient control law of the aero-engine is disclosed, and performs the transient schedule optimization for the aero-engine by adopting an SQP algorithm, to realize the design of the transient control law along a constrained boundary condition. The fuel flow rate value is adjusted, other constraints remain unchanged, and the transient control law is designed under different limits. The transient time under each transient control law is calculated by constructing the transient time evaluation function. A lookuptable interpolation table is established by using the calculated transient time and corresponding fuel flow, to realize the fuel flow scheduling under different transient time. The fuel flow obtained by scheduling in the expected time is taken as an acceleration and deceleration control schedule of the closed-loop control of the aero-engine, and the output thereof is taken as the reference instruction of an acceleration process.

In order to be able to construct test scenarios for vehicle development, with which tests can be carried out on a test bench during development, according to the present teaching, an output test in the form of a sequence of driving manoeuvres is carried out on the test bench with the test specimen and a value of the target variable is determined in this way. The result of the acquisition of the target variable resulting from the output test is divided into test segments and each test segment is checked for target-variable-critical relevance by means of a predetermined target variable relevance criterion. A driving maneuver assigned to the test segment or an assigned driving maneuver segment is recorded in the test if the target-variable-critical relevance of the test segment is given.

A method and device for monitoring a fault of a wind power generator set. The method includes the following steps: performing (101) fault identification on a component in a wind power generator set; and presenting (102) an identified fault using a three-dimensional model of the component. The device includes corresponding identifying module (61) and presenting module (62). By using the method and device, the fault monitor can intuitively observe the fault existed in the component, which not only is beneficial for taking effective fault processing measures before a minor fault evolves into a serious fault and thus reduces the harm of the fault, but also reduces the experience requirements for the fault monitor and avoids the process that the fault monitor in the prior art analyzes a two-dimensional curve to identify whether there is a fault in the component according to his experience.

A method and device for monitoring a fault of a wind power generator set. The method includes the following steps: performing (101) fault identification on a component in a wind power generator set; and presenting (102) an identified fault using a three-dimensional model of the component. The device includes corresponding identifying module (61) and presenting module (62). By using the method and device, the fault monitor can intuitively observe the fault existed in the component, which not only is beneficial for taking effective fault processing measures before a minor fault evolves into a serious fault and thus reduces the harm of the fault, but also reduces the experience requirements for the fault monitor and avoids the process that the fault monitor in the prior art analyzes a two-dimensional curve to identify whether there is a fault in the component according to his experience.

A failure detection device is disclosed. The failure detection device may receive operations data related to operations of a set of parts of a machine. The failure detection device may process the operations data using a condition-based processing technique. The condition-based processing technique may be associated with mapping initial values of data elements of the operations data to binary values based on satisfaction of a first set of conditions by the initial values. The failure detection device may detect a presence of a possible issue with the operations of the set of parts based on a second set of conditions, associated with the binary values and the initial values, being satisfied during a time period. The failure detection device may perform, after detecting the presence of the possible issue, a set of actions related to addressing the possible issue.

A failure detection device is disclosed. The failure detection device may receive operations data related to operations of a set of parts of a machine. The failure detection device may process the operations data using a condition-based processing technique. The condition-based processing technique may be associated with mapping initial values of data elements of the operations data to binary values based on satisfaction of a first set of conditions by the initial values. The failure detection device may detect a presence of a possible issue with the operations of the set of parts based on a second set of conditions, associated with the binary values and the initial values, being satisfied during a time period. The failure detection device may perform, after detecting the presence of the possible issue, a set of actions related to addressing the possible issue.

A method for synchronizing a simulation of a simulation model on a computer with a real-time system, the simulation and the real-time system each having a computing clock having a matching macro increment. The method includes the following features: awaiting a message from the real-time system, measuring a receiving instant of the message by the simulation, awaiting at least one further message of the real-time system, measuring the receiving instant of the further message by the simulation; calculating an averaged receiving instant based on the receiving instants of the message and the at least one further message; determining a starting instant of the simulation based on the averaged receiving instant such that the results of a macro increment of the real-time system are available to the simulation at the start of a macro increment.