15results about How to "Effective diagnosis" patented technology

The invention discloses a PCIe link state monitoring system and a monitoring method thereof. The PCIe link state monitoring system comprises a PCIe monitoring subsystem, a PCIe controller subsystem and a PHY (Physical Layer) module, wherein the PCIe controller subsystem and the PHY module are connected through a PIPE interface, and the PCIe monitoring subsystem is used for monitoring state information of a PCIe link; four levels of leaky bucket modules are integrated on the same layer of the PCIe monitoring subsystem, and the four levels of leaky bucket modules are used for dropping correctable error information in the state information of the PCIe link into leaky buckets, carrying out overflow counting to obtain leaky bucket overflow times, carrying out error pattern recognition according to the leaky bucket overflow times and preset different execution thresholds, and outputting the error pattern recognition result. Link recovery is carried out by adopting a progressive link recovery strategy; therefore, extra special equipment does not need to be introduced into the PCIe link, the observability of the PCIe link can be improved, and correctable errors caused by the signal integrity problem on the link can be analyzed and diagnosed in real time, so that a corresponding link recovery strategy is adopted.

The invention discloses an open-circuit fault diagnosis method and equipment applied to an inverter power supply of a hybrid power device. The method comprises the following steps: acquiring an output voltage or an output current in a current state; obtaining a current state, and obtaining each harmonic amplitude and a total harmonic distortion rate of a normal state; obtaining each harmonic amplitude offset and the total harmonic distortion rate offset of the current state; respectively comparing each subharmonic amplitude offset and the total harmonic distortion rate offset of the current state with the judgment threshold of the corresponding subharmonic amplitude offset and the judgment threshold of the total harmonic distortion rate offset; and determining that the open-circuit fault exists in the current state if the same specific subharmonic amplitude offset of the current state is greater than the judgment threshold of the corresponding subharmonic amplitude offset, or the total harmonic distortion rate offset of the current state is greater than the judgment threshold of the total harmonic distortion rate offset. According to the invention, the open-circuit fault of the inverter power supply of the hybrid power device can be diagnosed.

The charging pile fault diagnosis method based on deep self-perception cycle network comprises the following steps: collecting multi-dimensional electrical time sequence signals during the operation of a charging pile power module and preprocessing to obtain preprocessed time sequence signals; simultaneously extracting forward and backward long-time dependence features of the sequence through a long short-term memory network to obtain a fused bidirectional hidden state sequence; inputting the obtained bidirectional hidden state sequence into a self-attention mechanism layer, calculating attention weights through scaled dot product to adaptively enhance the representation of key fault feature periods, and outputting a fault diagnosis result through a fully connected classification layer and a normalized exponential function; using an adaptive matrix estimator optimizer with weight decay to end-to-end train a diagnosis model, updating model parameters through decoupled weight decay and adaptive learning rate, and completing model optimization and deployment. The method has strong bidirectional time sequence dependence modeling capability, high generalization capability and faster convergence speed in the fault diagnosis task.

This application discloses a single-chip integrated miniature wireless pH detection device and system based on ISFET, relating to the field of in vivo pH detection technology. The device includes: a housing; a wireless sensing chip integrating a pH sensing module, the sensing interface of which is exposed to the measured environment through the housing; a signal processing module connected to the pH sensing module for processing the pH sensing signal detected by the pH sensing module; and a wireless communication and power supply module connected to the signal processing module for transmitting the pH sensing signal processed by the signal processing module and supplying power to the modules on the wireless sensing chip. This application integrates the pH detection module, signal processing module, and wireless communication module into a single on-chip system, utilizing CMOS technology, wireless power transfer technology, and backscattered reverse communication technology, effectively reducing the size of the pH detection device and improving the accuracy of pH detection.

The invention relates to a method for diagnosing at least one first switch and at least one second switch of a switching unit with loading by a single-tank voltage and a vehicle electrical system voltage, comprising at least the following steps: a) providing at least one first switch with at least one first single-tank-sided sub-switch and at least one first vehicle-sided sub-switch arranged in series; b) providing at least one second switch with at least one second single-tank-sided sub-switch and at least one second vehicle-sided sub-switch arranged in series; c) measuring at least one first voltage at a central tap between the sub-switches when the first switch is open or at least one second voltage when the second switch is open, wherein a first test is carried out; d) closing at least one single-tank-sided sub-switch, wherein a second test is carried out; e) opening the single-tank-sided sub-switch and closing the vehicle-sided sub-switch, wherein a third test is carried out; wherein a connection voltage is continuously maintained.

The invention discloses a mechanical intelligent fault diagnosis method and device based on a multi-modal sensing signal, and belongs to the field of mechanical equipment fault diagnosis, and the method comprises the steps: multi-modal data collection and preprocessing: collecting three-channel original signals of two vibration channels and one current channel of mechanical rotating equipment under normal and multiple fault working conditions, intercepting equal-length fragments to form a sample; constructing and training a convolutional neural network model, and performing deep feature learning on the multi-modal sample; and inputting a to-be-detected multi-modal signal into the trained model, performing fault diagnosis reasoning, and outputting a corresponding diagnosis result. According to the invention, multi-sensor information and a deep learning algorithm are fused, and high-accuracy fault detection and health state intelligent evaluation of the mechanical rotating part are realized.

The invention discloses an intelligent voltage regulating transformer fault diagnosis method and system based on an improved CNN-BiLSTM model. The method comprises the following steps: firstly, collecting historical data of a voltage regulating transformer for preprocessing; then training is carried out based on historical data of the voltage regulating transformer to obtain a transformer fault diagnosis model, the transformer fault diagnosis model is an improved CNN-BiLSTM model, and an ECA-TAM attention mechanism is introduced into the CNN-BiLSTM model; and finally, inputting the current operation data of the voltage regulating transformer into the transformer fault diagnosis model to obtain a fault diagnosis result of the voltage regulating transformer. According to the method, an ECA-TAM attention mechanism is introduced into the CNN-BiLSTM network model for voltage regulating transformer fault diagnosis, purer and more representative feature input can be provided, interference of redundant information on time sequence modeling is reduced, the key dynamic learning ability is improved, efficient and accurate diagnosis of voltage regulating transformer fault types is achieved, and the fault diagnosis efficiency is improved. The accuracy and timeliness of transformer fault prediction are improved, and stable and safe operation of an electric power system is guaranteed.

The application provides an application of a method taking a protein as an action object in diagnosis and treatment of a KRAS gene mutation related disease, the method is to detect the expression of the protein to achieve the purpose of diagnosing the disease, or to inhibit or eliminate the activity of the protein, reduce or remove the protein to achieve the purpose of treating the disease. The application has the beneficial effect that the application of the method taking the protein as the action object in diagnosis and treatment of the KRAS gene mutation related disease, wherein the protein (RASON) has been proved to be overexpressed in a malignant tumor, especially a malignant tumor induced by the KRAS gene mutation, therefore, the protein is applied to a product for diagnosing and treating the malignant tumor, can effectively utilize the self characteristics to diagnose and treat the malignant tumor, and has wide market application prospect.

The invention relates to the technical field of pathogenic microorganism detection, in particular to a detection reagent for simultaneously detecting BTV, AKAV and EHDV and application of the detection reagent. The invention provides a one-step-method triple fluorescent RT-PCR (reverse transcription-polymerase chain reaction) detection reagent for detecting three arthrovirus diseases, namely bluetongue virus, Acamovirus and deer epidemic hemorrhagic fever virus, of ruminants such as cattle and sheep, and the detection reagent has no cross amplification reaction with other easily infected viruses of cattle and sheep. The kit can be used for efficiently and quickly detecting and diagnosing epidemic diseases of cattle and sheep susceptible to arbo viruses, and particularly has outstanding advantages in large-flux quick screening of a large number of sample virus nucleic acids.

This invention relates to a method and system for diagnosing faults in microfission ionization chambers, comprising: monitoring microfission ionization chambers in the same pressurized water reactor nuclear power unit; and when any microfission ionization chamber experiences an anomaly in calibration coefficient or plateau tilt, obtaining the fault type of the microfission ionization chamber to be diagnosed; if the fault type is an excessive calibration coefficient, then a preset calibration coefficient diagnostic method is used to diagnose the microfission ionization chamber to be diagnosed; if the fault type is an abnormally large or excessive plateau tilt, then a preset plateau tilt diagnostic method is used to diagnose the microfission ionization chamber to be diagnosed. This invention uses a preset calibration coefficient diagnostic method based on the physical meaning of the calibration coefficient, providing more comprehensive diagnostic evidence. Simultaneously, the use of a preset plateau tilt diagnostic method solves the problem of insufficient evidence when judging solely based on an abnormally large or excessive plateau tilt. Moreover, the diagnostic method of this invention has clear logic and sufficient evidence, enabling effective diagnosis.

The application discloses a whole vehicle relay fault management method, device and equipment and a storage medium, relates to the relay management technical field, and the method comprises the following steps: obtaining relay grouping data and relay set data of a whole vehicle relay according to a preset relay grouping strategy; obtaining periodical message data according to the relay grouping data and the relay set data; and performing whole vehicle fault management according to the periodical message data. Through relay grouping management, corresponding message design, gateway transmission and vehicle machine processing, the application realizes rapid positioning and efficient diagnosis of faults, solves the technical problem of how to accurately position a faulty relay, and improves the efficiency of fault diagnosis and maintenance and the reliability of the system.

The present invention relates to a peptide ligand that specifically binds to carbonic anhydrase IX (CAIX), a peptide construct comprising the ligand, and a use thereof. The CAIX-binding peptide ligand of the present invention includes D-amino acids, so it is stable in the body and has high binding specificity to CAIX. And the linear or cyclic CAIX-binding peptide construct comprising the ligand can bind to CAIX with high affinity in the body. Therefore, it is useful for diagnosis, prevention, suppression or treatment of diseases mediated by CAIX.

This invention belongs to the field of aero-engine fuel control technology, and discloses a device and method for diagnosing and handling aircraft fuel tank faults in an electric fuel system. The control device includes: a bus voltage and current monitoring module for monitoring the voltage and current of the DC bus in the electric fuel pump system and converting the voltage and current quantities into digital quantities; a motor speed acquisition module for acquiring the real-time speed of the electric fuel pump; a motor torque calculation module for calculating the rotational torque of the electric fuel pump based on the bus voltage, current, and speed, as a basis for fuel tank fault diagnosis; a fuel tank fault diagnosis module for diagnosing whether the aircraft fuel tank has a fault in real time based on the motor speed and torque; and a fuel tank fault handling module for providing action information to the electric fuel pump system after the aircraft fuel tank has a fault, driving the electric fuel pump to operate reliably in the fuel tank fault mode, and preventing a chain reaction of faults in the electric fuel pump system caused by the fuel tank fault.

This invention provides the application of IL-11rα1 in diagnostic products and drugs for intestinal fibrosis. It belongs to the interdisciplinary fields of in vitro diagnostics and biomedicine. Specifically, this invention provides a diagnostic product for intestinal fibrosis, which includes an IL-11rα1 detection reagent. This invention demonstrates that IL-11rα1 can serve as a diagnostic biomarker and therapeutic target for intestinal fibrosis caused by inflammatory bowel disease. It provides a new tool for the clinical diagnosis and treatment of intestinal fibrosis and has broad application prospects.

A multi-source domain approximation fault diagnosis method for fluctuating speed operation conditions combines real data and mechanism data, mainly by fusing bearing mechanism model data and real data under large fluctuating speed operation conditions, designing a dynamic multi-source domain migration strategy, using distance measurement distance iterative approximation of the maximum difference between domains, and combining minimum class confusion loss to realize label space alignment. The method solves the feature drift caused by speed fluctuation and the problem of insufficient labeled data, significantly improves the cross-domain fault diagnosis accuracy, improves the recognition rate and robustness of bearing fault, and realizes effective diagnosis of bearing fault under fluctuating speed.