A lubrication system includes a lubricator. A detecting unit includes an oil introducing part, multiple chambers, multiple blockage detectors and a processor. The oil introducing part is connected between the detecting unit and the lubricator. The oil introducing part communicates with the chambers. The blockage detectors are electrically connected to the processor and monitor transportation status of lubrication oil of the chambers. The processor judges the transportation status of the lubricating oil of the chambers by results from the blockage detectors. The lubrication system finds out blockage in the oil paths immediately so as to remove the blockage timely.

A lubrication system includes a lubricator. A detecting unit includes an oil introducing part, multiple chambers, multiple blockage detectors and a processor. The oil introducing part is connected between the detecting unit and the lubricator. The oil introducing part communicates with the chambers. The blockage detectors are electrically connected to the processor and monitor transportation status of lubrication oil of the chambers. The processor judges the transportation status of the lubricating oil of the chambers by results from the blockage detectors. The lubrication system finds out blockage in the oil paths immediately so as to remove the blockage timely.

A linear transmission device with capability of real-time monitoring of an amount of a lubricant includes a long shaft, a moving part, a lubricating device and a detecting module. The lubricating device includes a shell and an oil containing unit. The shell is formed with a first accommodating space. The oil containing unit is disposed in the first accommodating space and configured to provide the lubricant to an outer surface of the long shaft. The detecting module includes a temperature sensing unit and a control unit. The temperature sensing unit is configured to detect a current temperature of the oil containing unit. The control unit is connected with the temperature sensing unit and configured to: receive the current temperature; calculate a remaining amount of the lubricant of the oil containing unit based on the current temperature and an oil releasing model; and output the remaining amount.

A linear transmission device with capability of real-time monitoring of an amount of a lubricant includes a long shaft, a moving part, a lubricating device and a detecting module. The lubricating device includes a shell and an oil containing unit. The shell is formed with a first accommodating space. The oil containing unit is disposed in the first accommodating space and configured to provide the lubricant to an outer surface of the long shaft. The detecting module includes a temperature sensing unit and a control unit. The temperature sensing unit is configured to detect a current temperature of the oil containing unit. The control unit is connected with the temperature sensing unit and configured to: receive the current temperature; calculate a remaining amount of the lubricant of the oil containing unit based on the current temperature and an oil releasing model; and output the remaining amount.

A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAl, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.

A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAl, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.

There is provided a method and system for diagnosing a condition of an aircraft engine. The method comprises obtaining a sample of lubricating fluid from the engine, filtering the sample to obtain a plurality of particles from the lubricating fluid, directing an excitation beam towards the particles, detecting an energy level emitted from the particles in response to the excitation beam, determining a level of coking in the lubricating fluid based on a difference between the energy level as detected and an expected energy level, and diagnosing a condition of the engine based on the level of coking in the lubricating fluid.

There is provided a method and system for diagnosing a condition of an aircraft engine. The method comprises obtaining a sample of lubricating fluid from the engine, filtering the sample to obtain a plurality of particles from the lubricating fluid, directing an excitation beam towards the particles, detecting an energy level emitted from the particles in response to the excitation beam, determining a level of coking in the lubricating fluid based on a difference between the energy level as detected and an expected energy level, and diagnosing a condition of the engine based on the level of coking in the lubricating fluid.

An apparatus for controlling a cluster of a vehicle may include, an oil pressure switch (OPS) mounted at an oil passage of an engine, a driving information detection unit configured of receiving an oil pressure signal from the OPS through a connector of the OPS, an OPS connection determination unit configured of determining that the OPS is disconnected when a first waveform voltage determined from a first oil pressure signal detected before the engine is started is the same as a second waveform voltage determined from a second oil pressure signal detected after the engine is started, and a control unit configured of controlling the cluster to turn on a warning lamp in a response that the control unit receives disconnection event information related to the OPS.

An apparatus for controlling a cluster of a vehicle may include, an oil pressure switch (OPS) mounted at an oil passage of an engine, a driving information detection unit configured of receiving an oil pressure signal from the OPS through a connector of the OPS, an OPS connection determination unit configured of determining that the OPS is disconnected when a first waveform voltage determined from a first oil pressure signal detected before the engine is started is the same as a second waveform voltage determined from a second oil pressure signal detected after the engine is started, and a control unit configured of controlling the cluster to turn on a warning lamp in a response that the control unit receives disconnection event information related to the OPS.