1591results about How to "Timely maintenance" patented technology

A method for providing selected content items to a user. The selection of content items is based on metadata pre-assigned to content items, typically authored content metadata, and on metadata generated and associated afterwards, called derived content metadata. Additionally, the selection of content items can be based also on context metadata, particularly derived context metadata. Derived metadata are automatically generated on the basis of derivation rules corresponding to algorithms to be applied to, e.g., the content of content items, authored content metadata and context metadata. User profiles can be used for improving the selection quality. A method is also disclosed for building and maintaining user profiles based on machine learning techniques.

The present invention includes polymer interlayers that are used in multiple layer glazing panels. Interlayers of the present invention comprise a thermoplastic polymer, a plasticizer, a tungsten oxide agent, and a stabilizing agent that prevents the degradation of the tungsten oxide agent. Interlayers incorporating such components have improved ultraviolet light blocking character, and also maintain optical quality over time.

The invention discloses a template-free dynamic website generating method, mainly comprising the steps of: (A) building page component library for users to call as building websites; (B) calling the needed page components from the page component library and setting user-required interface contents and then saving the setting; (C) building page layout and freely composing the page components and saving the interface layout and composition setting, where the page component library is an extensible page component library; each page component is a dynamic maintainable page component comprises color, font, display style and other attributes. And the method is based on dynamic page components to implement free composition and can convert the user's work of writing program as building a dynamic website into the work of calling and maintaining page components, and can quickly build an extremely individual dynamic website without professional software engineer and artistic designer.

The invention discloses an establishing method of a failure type prediction model. The establishing method comprises the following steps of: collecting a vibration signal of a fan, and meanwhile, collecting the audio signal of the fan; pretreating the vibration signal and carrying out feature extraction on the vibration signal after pretreating so as to obtain a vibration characteristic parameter, and pretreating the audio signal and carrying out feature extraction on the audio signal after pretreating so as to obtain an audio characteristic parameter; and substituting the vibration characteristic parameter to a failure type vibration template so as to obtain a failure type corresponding to the vibration characteristic parameter, and associating the audio characteristic parameter with the failure type so as to establish a failure type audio template. The invention also discloses an establishing system of the failure type prediction model and an establishing method and system of a malfunction probability prediction model as well as a fan monitoring pre-warning system and method. The fan monitoring early-warning system and method provided by the invention have the advantages that the sensitivity is high, and the failure monitoring is more exact.

The invention provides an acne-removing and skin-clearing composition comprising an acne-removing agent containing at least one natural component, a skin-clearing agent containing at least one natural component, and an antibacterial and anti-inflammatory agent containing at least one natural component, wherein the mass ratio of the acne-removing agent to the skin-clearing agent to the antibacterial and anti-inflammatory agent is (0.1-60):(0.1-60):(0.01-30). The invention further provides a tissue applying the acne-removing and skin-clearing composition. The tissue disclosed by the invention not only has a sweat-removing and humidity-absorption function, but also can improve a skin condition of a user and has the functions of removing acnes, clearing acne scars and removing pimples.

Disclosed is a method for maintaining uplink timing synchronization by a User Equipment (UE) in a mobile communication system, without uplink transmission of a preamble from a UE or without transmission of uplink timing difference information from an Evolved Node B (E-NB) to solve the inefficient use problem of radio resources, occurring due to periodic transmission of uplink signaling and downlink signaling during maintenance of the uplink timing synchronization, and a UE apparatus for the same.

Preferred embodiments relate to methods and apparatus for making articles made of polyester, preferably virgin polyethylene terephthalate (PET), having coated directly to at least one of the surfaces thereof one or more layers of recycled or post-consumer PET and one or more layers of a material with good gas-barrier characteristics, preferably silicon oxide. Preferably, the recycled PET layer comprises about 25% to about 50% of the entire material content. Preferably the articles take the form of preforms and the containers are blow-molded therefrom and the barrier layer is subsequently applied. The preferred barrier materials have a lower permeability to oxygen and carbon dioxide than PET. In addition, the neck of the preforms and bottles is at least partially in the crystalline state and the body is primarily in the amorphous or semi-crystalline state. This structure in a preform enables the preform to be easily blow molded by virtue of the amorphous material in the body, while being able to have dimensional stability in hot-fill applications.

A system and a method for circuit compliance compensated volume control in a patient respiratory ventilation system having a flow regulated feedback servo control loop, a volume delivery controller, and a patient volume observer. In the flow regulated feedback servo control loop, an estimate of patient volume is used for feedback control, such that a tidal volume is achieved upon servo regulation, and the peak inspiratory flow is modulated based on volume error between the set tidal volume and the estimated patient volume. Thereby, a constant inspiratory time and a constant I:E ratio can be maintained. In the volume delivery control, the feedback volume error is normalized to a volume error percentage, and the gain of the controller is dynamically changed based on the volume error percentage, such that the controller effort can be minimized when the volume target is approached. The patient volume observer is operative to estimate the patient delivered volume based on the estimated circuit volume and the measured net delivered volume, while the measured net delivered volume includes effects of leaks and valve dynamics and is synchronously captured with true patient breathing.

Linear predictive speech coding system with classification of frames and a hybrid coder using both waveform coding and parametric coding for different classes of frames. Phase alignment for a parametric coder aligns synthesized speech frames with adjacent waveform coder synthesized frames. Zero phase alignment of speech prior to waveform coding aligns synthesized speech frames of a waveform coder with frames synthesized with a parametric coder. Inter-frame interpolation of LP coefficients suppresses artifacts in resultant synthesized speech frames.

The invention discloses an internal short-circuit detection method of a power battery. The internal short-circuit detection method comprises the following steps: detecting whether lowest voltage of the battery is lower than the set value and lasts for the preset time or not when a vehicle runs again or is charged, if so, judging the existence of short circuit, and performing maintenance operation on the battery through a prompt of a BMS (battery management system); identifying the difference of the battery in the static state through the BMS when the battery is arranged at the discharge tail end, if the difference in the capacity of the battery is too great, exceeds the set value and lasts for the preset time, judging the existence of the short circuit in the battery, emitting an alarm through the BMS and reminding of performing the maintenance operation on the battery; and recording the number of times of achieving cutoff voltage of the battery in the BMS, when the difference in the number of times of charge cutoff or discharge cutoff of the battery is larger than the set value, judging the existence of the short circuit in the battery, emitting the alarm through the BMS and reminding of performing the maintenance operation on the battery. According to the internal short-circuit detection method disclosed by the invention, the internal short circuit of the battery can be identified through a variety of means, and the internal short-circuit situation of the battery can be identified to the greatest extent by combining with a statistical method on the basis of long-term operation data.

The invention relates to a system for managing the continuous status of batteries of an electric motorcar, comprising a battery box replacing unit, a charge inspection maintenance station unit and a network control centre unit, wherein the battery box replacing unit comprises a battery unit module formed by connecting more than two single batteries in series, battery monitoring modules respectively matched with each single battery correspondingly, a battery status collection module and a battery box management module; the charge inspection maintenance station unit comprises more than two chargers, charge management modules corresponding to each charger and a charge station database management computer communicated with more than two charge management modules; and the network control centre unit receives data sent by the charge station database management computer and sends database data of the corresponding battery box replacing unit to the charge station database management computer. The invention can dynamically carry out analysis and judgment on the batteries in the use process, measure and maintains the batteries in time in the charge process of the batteries, prolong the service life of the batteries, improve the safety performance of the batteries, and reduce the use cost of the batteries.

The invention belongs to the technical field of vehicle maintenance and relates to a vehicle maintenance reminding system which includes a system hardware terminal that is arranged on the body of a vehicle and used for collecting parameter information relevant to the vehicle maintenance and storing the collected parameter information; a central information processing center which receives the parameter information relevant to the vehicle maintenance and stores the parameter information into a database, checks the change process of the received parameter information relevant to the vehicle maintenance, generates the information of the items and the dates of the vehicle maintenance and transmits the information by the Internet; and a system software terminal; the central information processing center transfers the information of the items and the dates of the vehicle maintenance generated by central information processing center to the system software terminal by the Internet and the system software terminal reminds a vehicle owner to carry out maintenance. The vehicle maintenance reminding system of the invention solves the existing technical problem that the actual maintenance time of the vehicle is misplaced with the time actually needed by the vehicle maintenance, namely, the forward maintenance or the hysteretic maintenance of the vehicle.

A control apparatus for a hybrid vehicle which includes an all cylinder deactivated operation execution flag F_ALCS for executing the all cylinders deactivated operation, when it is determined that the all cylinders deactivated operation is appropriate by the all cylinders deactivation standby flag F_ALCSSTB for determining the appropriateness of the all cylinders deactivated operation and the all cylinders deactivation release conditions realization flag F_F_ALCSSTP for determining the appropriateness of releasing the all cylinders deactivated operation, based on the all cylinders deactivation solenoid flag F_ALCSSOL for operating a spool valve, for determining an appropriateness of the operation of the solenoid valve, the all cylinder deactivation standby flag F_ALCSSTB, the all cylinder deactivation conditions realization flag F_ALCSSTP, the all cylinder deactivation solenoid flag F_ALCSSOL.

Methods and systems for maximizing the quality perceived by the user in a software-based, multi-point video conference or collaboration session between devices that are potentially different (e.g., devices from different vendors, devices with different operating systems, devices on different networks, devices that function as servers, clients or both) and maintaining the quality over time.

The invention relates to system and method for detecting the transformer winding state by using constant-current sweep frequency power source excitation. A measurement and control analysis module controls sweep frequency power source and applies output constant-current sweep frequency excitation signals by an exciting transformer at a high-voltage side of the transformer to be detected; a vibration sensor measures vibration response signals of a transformer winding to be detected at different excitation frequencies; a vibration signal collector collects and preprocesses the signals measured by the vibration sensor; and the measurement and control analysis nodule carries out spectrum analysis to the received and processed vibration response signal data, displays and records a resonant frequency curve of the transformer winding on a frequency domain, compares with the resonant frequency curve previously measured and recorded as well as the vibration frequency curve of a transformer three-phase coil, and judges the state of the transformer winding to obtain the measuring result. The invention can effectively and sensitively detect the states of looseness or deformation of the transformer winding for prompt repair or replacement so as to avoid a fault of abrupt short circuit of the transformer caused by damage of the winding structure.

The invention relates to an online monitoring and early warning system for vibration of an intelligent motor, which belongs to the field of intelligent motor monitoring. The system comprises a vibration sensor, a processing and analysis module, a calendar module, a storage module, a communication module, a field alarming module and a portable device. the vibration sensor measures the real-time vibration data of the motor, the data are transmitted to the processing and analysis module, the operation and the working state of the motor are analyzed and judged in combination of data measured by an electric parameter measuring module and a rotation speed measuring module, and in view of abnormal vibration features under different load rates, field alarming or early warning to the portable device is carried out. Besides, early warning is also carried out for the changing trend of the vibration frequency and the changing trend of the amplitude. The system can realize online vibration monitoring and early warning when the motor is abnormal or in an abnormal working state, timely finding and timely processing are carried out, expanding of motor fault can be effectively avoided, the maintenance efficiency is greatly improved, the structure is simple, the cost is low, the measurement is accurate, and the system can be widely applied to intelligent and online vibration monitoring on middle and small-sized motors.

A method for predicting the residual life of a corroded casing of a high-temperature and high-pressure well mainly comprises the following steps: (1) predicting the inner average corrosion rate and the outer average corrosion rate of the casing by adopting the gray neural network algorithm; (2) establishing an finite element model for the corroded casing, and simulating the corrosion process of the casing by utilizing the element birth-death technology, so as to acquire the critical failure wall thickness of the casing when the casing loses efficacy; (3) establishing a residual life prediction model for the corroded casing, and computing the residual life of the casing subjected to uniform corrosion, local corrosion and pitting corrosion by utilizing the approximate analytical method; (4) establishing a relation equation for zero dimension residual intensity and zero dimension internal pressure and steam temperature by utilizing the regression analysis method. Aiming at the limitation of the theoretical study, laboratory test and field data on prediction of the service life of the casing, the method can effectively predict the residual life of the casing in shorter time, and the established residual intensity relation equation enables the engineering personnel to perform comprehensive evaluation on the service capability of the casing.

This invention relates to water works engineering safety protection equipments field and a dam leak position distribution light fiber temperature sensor monitoring apparatus and its method. The apparatus is formed by connecting the double-coupler, wavelength-division multiplex, snow-slide diode, main amplifier, sampling even device and sum device, computer, driver, laser diode and sensor cable. The sensor cable has two structures: one is the sensor light cable core of fiber, and the outer layer of the fiber is metal center protective cover, water-tight isolation layer, aramid fiber, outer protective layer; the other is heating sensor cable with isolation heating conductor in one of its structures. íí

A system and method for selectively delivering media streams to remote users is disclosed. In an embodiment of the present invention, the transmission of media streams to remote users is based on the time of day at remote locations. The time of day is computed from an offset from the home location and is automatically determined based on the network address of the remote user.

The invention discloses an urban internet of things system based on an intelligent road lamp. The urban internet of things system comprises the intelligent road lamp, a road section controller and a control center, wherein the intelligent road lamp comprises a central control unit, a road lamp driving circuit, a first programmable logic controller (PLC) communication module, a power module, a lighting unit and a sensor; the sensor sends signals which are acquired to a central controller; the central controller processes the signals; the processed signals are sent to the road section controller through the PLC communication module and then sent to the control center; meanwhile, the control center sends a road lamp control signal, the road section controller transmits the road lamp control signal to the PLC communication module, and the PLC communication module sends the road lamp control signal to the central control unit; and the central control unit controls the road lamp driving circuit to drive the road lamp, so that control of the road lamp is accomplished. The urban internet of things system based on the intelligent road lamp has the advantages of low degree of destroy, wide coverage range, low construction cost, high degree of intelligence and the like.

Methods are described to make strong, tough, and / or lightweight glass-ceramic composites having a crystalline phase and an amorphous phase generated by viscous reaction sintering of a complex mixture of oxides and other materials. The present invention further relates to strong, tough, and lightweight glass-ceramic composites that can be used as proppants and for other uses.

The invention discloses a method for identifying modal parameters of a transformer coil. The method includes the following steps: vibration signals of all measure points of the transformer coil are collected; Fourier transformation is carried out on the vibration signals, and a vibration frequency response curve of the transformer coil is obtained; Fourier inversion is carried out, and free vibration signals of the transformer coil are obtained; wavelet conversion is carried out on the free vibration signals through Morlet wavelets, and a wavelet transformation time-frequency diagram is made; wavelet ridges are extracted from the wavelet transformation time-frequency diagram, and the vertical coordinate of each wavelet ridge is inherent frequency of each step of the transformer coil; the damping ratio of inherent frequency of all the steps is calculated; a coil vibration mode of the inherent frequency of each step is calculated. With the method, the mode parameters of the transformer coil can be accurately and efficiently identified. Design, manufacturing, coil deformation detection and state evaluation are convenient to carry out on a coil structure.

The invention relates to a method and device for determining the shielding condition of a camera head. The method comprises the following steps of: acquiring a color image shot by a camera; removing small tiny black regions in the color image to obtain a grey-scale closed image; calculating the grey-scale closed image to obtain a suspicious shielding region; filtering an interference region of the suspicious shielding region to obtain an actual shielding region; calculating the outline region acuity of the actual shielding region; calculating the outline region acuity to obtain a shielding evaluation value; and determining that the camera head of the camera is shielded if the shielding evaluation value is judged to be larger than a preset shielding threshold value. The invention aims to solve the technical problem of monitoring failure caused by the shielded camera head.

In a liquid discharging apparatus for discharging droplets from a liquid discharge nozzle to a discharge object to be discharged and in a method for controlling the liquid discharging apparatus, cleaning effects for the ink discharge nozzle and the adjacent areas can be enhanced, and the time required for a series of performance maintaining operations can be reduced. The apparatus includes a platen plate for supporting recording paper as the discharge object, defining a positional relationship between the discharge object and the liquid discharge head, and receiving the droplets discharged from the liquid discharge head. Ink droplets are preliminarily discharged from the ink discharge nozzle to the platen plate.

The invention relates to a construction method of a soil covering tank for storing product oil and the like, which comprises the following steps of: (A) building a tank chamber of a soil covering tank: firstly, carrying out earth excavation with a method combining a back-acting shovel and manual excavation; then, manufacturing a ring beam, precasting concrete blocks on the spot according to the radian of the ring beam, and building the concrete blocks; carrying out the engineering of steel bars: welding steel bars by machining, and manually binding the steel bars on the spot; carrying out the engineering of templates and scaffolds: taking a bamboo plywood as a top plate template of a concrete thin shell of the tank chamber, designing a camber at the middle part, and taking scaffold tubes as bottom template brackets of the thin shell of the tank; then, carrying out concrete engineering and asphalt sand construction; and finally, carrying out waterproof engineering, thereby completing the construction of the tank chamber of the soil covering tank; and (B) installing a storage tank body of the soil covering tank: firstly, precasting the storage tank body; then, installing a tank bottom plate; installing the tank body, and welding the storage tank; and finally, testing and inspecting to complete the whole construction process of the soil covering tank after the construction is qualified. The invention reduces the occurrence of accidents, increases the benefit and reduces the dust emission.