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145 results about "DEVICE EVALUATION" patented technology

Equipment evaluation and federated learning importance aggregation method, system and equipment based on edge intelligence and readable storage medium

The invention provides an equipment evaluation and federated learning importance aggregation method based on edge intelligence, which comprises the following steps of cloud server initialization: generating an initial model by a cloud server, equipment evaluation and selection: receiving resource information of terminal equipment by an edge server, generating a resource feature vector, and inputting the resource feature vector to the evaluation model, local training: after the edge server selects the intelligent equipment, sending the transferred initial model to the intelligent equipment, andenabling the intelligent equipment to carry out local training on the initial model in federated learning to obtain a local model, local model screening: sending the local model to an edge server, and judging whether the local model is an abnormal model or not by comparing the loss values of the local model and a previous round of global model, and global aggregation: performing global aggregation by using a classical federated average algorithm. According to the method provided by the invention, on one hand, the training bottleneck problem with resource constraint equipment is solved, and onthe other hand, the model aggregation effect is improved so as to reduce redundant training and communication consumption.
Owner:HUAQIAO UNIVERSITY

Hydropower station on-off equipment operation and maintenance and fault monitoring online evaluation system and method

The invention relates to a hydropower station on-off equipment operation and maintenance and fault monitoring online evaluation system and method. The hydropower station on-off equipment operation andmaintenance and fault monitoring online evaluation system comprises a system server, wherein an integrated information database is arranged in the system server, and the hydropower station on-off equipment operation and maintenance and fault monitoring online evaluation system further comprises an intelligent operation and maintenance system, a fault monitoring and early warning system and an online evaluation system which operate in the system server. The intelligent operation and maintenance system comprises an information acquisition module used for acquiring the working state of the on-off equipment, and an operation and maintenance data database connected with the information acquisition module. The fault monitoring and early warning system comprises an information acquisition modulefor acquiring fault information and a fault alarm database connected with the information acquisition module, and the online evaluation system comprises an equipment evaluation database. According tothe hydropower station on-off equipment operation and maintenance and fault monitoring online evaluation system, related personnel can comprehensively understand and grasp the operation state of thestarting and stopping equipment and timely eliminate and repair possible faults, so that the service life of the equipment can be prolonged, and the safe operation of the equipment is guaranteed.
Owner:HUADIAN ZHENGZHOU MECHANICAL DESIGN INST

Playback pipeline for testing wireless devices

Evaluation of a wireless device using a channel emulator is facilitated by validating a playback file; compensating for external loss; applying post processing changes; compiling the playback file; streaming playback file data to a channel emulator; and performing playback by the channel emulator. Validation is performed by operating directly on the user's editable playback file so that compilation of the playback file is not required for validation. User-supplied values indicative of the levels of external losses are used to automatically adjust the corresponding values in the playback file by the specified amount before the playback data is relayed to the channel emulator. Post processing changes indicative of alternate channel conditions may be used to augment or replace values in the playback file before the playback data is relayed to the channel emulator. The playback file is sequentially compiled as playback data is used by the channel emulator to allow playback to start sooner. Real-time streaming of playback data also allows an unlimited number of playback instructions to be processed within a fixed memory footprint. A power tracking loop detect changes in the transmit power level of a connected device during playback, and the channel emulator is automatically recalibrated to account for power level changes.
Owner:AZIMUTH SYSTEMS

Power transmission device state evaluation and risk analysis method and device based on multidimensional data

The invention provides a power transmission device state evaluation and risk analysis method and device based on multidimensional data and relates to the technical field of meteorological and electric power technology application. The method comprises steps of: acquiring and storing information data of a PMS production management system, information data of a power transmission and transformation monitoring system and information data of a meteorological bureau system through multidimensional heterogeneous data access; carrying out data preprocessing on the information data of the power transmission and transformation monitoring system and generating online monitoring effective data of a power transmission circuit; determining a power transmission device evaluation index according to the information data of the PMS production management system and the online monitoring effective data of the power transmission circuit, and determining an evaluation state corresponding to the power transmission device evaluation index according to a preset state evaluation strategy; and determining a risk index of the power transmission device according to the information data of the meteorological bureau system, the asset value of the power transmission device, the asset loss value of the power transmission device and the average fault rate of the power transmission device. According to the invention, the multidimensional data is comprehensively considered.
Owner:STATE GRID CORP OF CHINA +2

Spectrum data evaluation method for same-vehicle multi-machine communication system

The invention relates to a spectrum data evaluation method for a same-vehicle multi-machine communication system, which is characterized in that the spectrum data evaluation method at least comprises an initialized step and a real-time use step; in the initialized step, the coupling degree of devices of a communication vehicle is calculated, the modeling of a vehicle body and an antenna is carried out at first in step 101, equipment spectrum parameters are set in the step 102, then the platform coupling degree of the communication vehicle is calculated through a moment method and a fast multipole method in the step 103, and the calculated coupling degree result is saved in the step 104 finally; and in the real-time use step, the spectrum data of the same-vehicle multi-machine communication system is evaluated, equipment spectrum and property information is obtained at first in the step 105, the device-level interference evaluation of the saved coupling degree parameters obtained in the step 104 and the equipment spectrum and property information is performed in the step 106, the system-level comprehensive evaluation is performed according to the equipment evaluation results obtained in the step 106, and an evaluation report is generated in the step 108 finally.
Owner:XIDIAN UNIV

High-precision scanning mine detection device and scanning detection method

The invention discloses a high-precision scanning mine detection device and a scanning detection method, and particularly relates to a device for judging existence of landmines and precisely locatingthe landmines through a PGNAA (Prompt Gamma-Ray Neutron Activation Analysis) technology. The high-precision scanning mine detection device is composed of a neutron source item system, a detection system, a shielding protection system and an energy spectrum analysis system, wherein the neutron source item system is used for exciting nitrogen feature gamma rays in a landmine sample, detectors collect the gamma rays and measure the energy spectrum, the shielding protection system of the detectors is made of a boron-containing polyethylene material, the activation interference of the detectors isreduced, and meanwhile, neutron damage of the detectors is lowered. According to the high-precision scanning mine detection device, the signal-to-noise ratio is regarded as a device design evaluationcriterion, the overall scanning mine detection device is designed based on a novel device evaluation optimization method, the signal-to-noise ratio is high, and the measurement level is improved; meanwhile, a novel scanning method is utilized for mine detection, the measurement time is shortened, and the precision of position detection of the landmines is improved at the same time.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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