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46results about How to "Accurate health status" patented technology

Wearable intelligent hand ring and method for continuously monitoring human body physiological signs

The invention discloses a wearable intelligent hand ring and method for continuously monitoring human body physiological signs. The intelligent hand ring comprises a hand ring body; a monitoring circuit is embedded in the hand ring body; the monitoring circuit comprises a main control unit and multiple monitoring units; each monitoring unit monitors the various human body physiological signs which are processed by a main control unit. The wearable intelligent hand ring and method for the continuously monitoring the human body physiological signs have the following beneficial effects of integrating multiple sensing circuits, being capable of collecting multiple human body physiological signs and realizing the parallel processing on various collected data; the collected human body physiological signs are analyzed by adopting a unique data analysis method, so the human body healthy condition can be comprehensively accurately obtained; a user can regularly start the monitoring function by triggering of one hand or controlling of the main control unit, and the need that the human body physiological signs of the user are monitored anytime anyplace for 24 hours is met; the intelligent hand ring is provided with a wireless communication unit, and data synchronization can be performed between the intelligent hand ring and a mobile terminal, so the user can learn the physiological signs and the healthy condition in real time.
Owner:YUEXIANG QUSHI TECH BEIJING

Power equipment state evaluation method based on big data analysis

The invention relates to the technical field of power monitoring, in particular to a big data analysis-based power equipment state evaluation method, which comprises the following steps of S10, determining a basic parameter system; removing parameters with small correlation with the fault defects, and constructing a key parameter system for state evaluation; S20, checking the quality of the data in the key parameter system, and conducting data cleaning work when the quality of the data does not meet the requirement; S30, judging the equipment state and the abnormal change of the association relationship of the equipment state by utilizing the correlation, and carrying out equipment abnormality detection by analyzing the association relationship and the change rule of the multi-dimensionalstate data; and S40, screening out the abnormal key performance according to the related characteristic parameters of the power transmission and transformation equipment, and obtaining the evaluationvalue of each key performance. Fusion analysis and deep mining are performed on the multi-source data of power equipment state monitoring so that rapid detection and personalized state evaluation of an abnormal state can be realized, and the health state of the key performance can be comprehensively, timely and accurately mastered.
Owner:GUANGDONG POWER GRID CO LTD +1

Valve-regulated lead-acid storage battery health state prediction method based on improved LSTM neural network

The invention discloses a valve-regulated lead-acid storage battery health state prediction method based on an improved LSTM neural network. The method comprises the steps: obtaining the floating charge voltage, the average charge current, the average charge duration, the discharge cut-off voltage and the discharge duration input data of a storage battery through daily measurement of an online monitoring device, the capacity of the storage battery being measured through check equalizing charge every two months; with n days being taken as a time span, establishing n-dimensional sample input x(ti); establishing a neural network model comprising a plurality of LSTM neural network units by taking a storage battery capacity data sequence h(ti) as output and the x(ti) as input; in an initial state, assigning a weight matrix W and an offset matrix b in the network by randomly generating a decimal between 0 and 1; and introducing a Dropout algorithm to improve the LSTM neural network model, and improving the training process of the LSTM neural network model. According to the method, the problems of over-low prediction precision and under-fitting caused by insufficient data samples can be reduced, the health state of the transformer substation storage battery is accurately predicted, and the utilization rate of the storage battery is improved.
Owner:CHINA THREE GORGES UNIV

Ship generator part influence identification method and system based on data driving

The invention relates to a ship generator part influence identification method and system based on data driving, wherein the method comprises the steps of obtaining the operation parameter informationof a ship generator and the state parameter information of a part, and obtaining a first data sample set; preprocessing the sample data in the first data sample set to obtain the normal sample data of the ship generator under a stable working condition, and further obtaining a second data sample set; based on the second sample data set, dividing the working conditions, and obtaining a reference deviation value of different part state parameters under the analysis working condition ; obtaining the state characterization information of the part state parameters under the analysis working condition based on the reference deviation value; and visually displaying the state representation information of each part parameter under the analysis working condition. By adopting the method or the system provided by the invention, the health state of the ship generator part can be accurately evaluated, analyzed and displayed, and the problems that measurement and judgment only depend on experiences, quantitative analysis and evaluation are lacked and a graphic result cannot be clearly displayed, in the prior art, are solved.
Owner:CSSC SYST ENG RES INST

Wearable smart bracelet and method for continuously monitoring human physiological signs

The invention discloses a wearable smart bracelet and a method for continuously monitoring human physiological signs. The smart bracelet includes a bracelet body, and a monitoring circuit is embedded in the bracelet body; the monitoring circuit includes a main control unit and various monitoring devices. unit. Each monitoring unit simultaneously detects various types of human physiological sign data, which are processed in parallel by the main control unit. The present invention has the following beneficial effects: a variety of sensor circuits are integrated, various human physiological signs can be collected, and various types of collected data can be processed in parallel; a unique data analysis method is used to analyze the collected human physiological signs , can obtain a comprehensive and accurate health status of the human body; the user can trigger the start with one hand or start the monitoring function at a fixed time controlled by the main control unit, which meets the needs of the user to monitor the physiological signs of the human body 24 hours anytime and anywhere; it is equipped with a wireless communication unit, which can communicate with the mobile terminal Through data synchronization, users can understand the physiological signs and health status of the human body in real time.
Owner:YUEXIANG QUSHI TECH BEIJING

Vibration monitoring and tunneling equipment data real-time acquisition synchronization method and system

The invention provides a vibration monitoring and tunneling equipment data real-time acquisition synchronization method and system, which are used for solving the technical problem that synchronous analysis of vibration monitoring and tunneling equipment data is difficult due to different storage positions, large sampling frequency difference and difficult time synchronization of the vibration monitoring and tunneling equipment data. The method comprises the following steps: synchronously updating the time and date of equipment for acquiring vibration data and tunneling equipment data; selecting the smaller one of the sampling frequencies of the vibration data and the tunneling equipment data as a reference frequency, and scaling the sampling frequency of the vibration data or the tunneling equipment data by using the reference frequency; sparse processing is carried out on the collected vibration data, so that the sampling time interval between two adjacent points in the vibration data is consistent with the tunneling equipment data; and combining the rarefied vibration data with the tunneling equipment data to complete synchronous linkage analysis of the vibration data and the tunneling equipment data. The synchronization efficiency and automation degree of the vibration data and the tunneling equipment data are high, and the method is easy to implement.
Owner:XINJIANG IRTYSH RIVER BASIN DEV ENG CONSTR ADMINISTRATION +1

SOH estimation method and device for power battery system of electric vehicle

The invention provides an SOH estimation method and device for a power battery system of an electric vehicle, and belongs to the technical field of vehicle-mounted power battery systems. The SOH estimation method comprises the steps: electrifying a power battery system, and determining the state of charge SOCStart charge of the power battery system at the start moment of current charging; and according to the SOCStart charge, the rated capacity CR of the power battery system, and the health state SOHBCR based on the capacity retention rate of the power battery system, which is calculated lasttime, calculating to obtain the initial capacity CStart charge of the power battery system at the beginning of the current charging: CStart charge = SOCStart charge * CR * SOHBCR; counting the charging capacity CCharge in the current charging process at the charging end moment; according to the CStart charge and the CCharge, obtaining the capacity Cend charge at the charging end moment, wherein the Cend charge = CStart charge + CCharge; and according to the Cend charge and the CR, obtaining the state of health SOHCRR based on the capacity retention rate of the power battery system at this time: SOHCRR = Cend charge/CR * 100%. The accuracy of the health state of the power battery system can be improved.
Owner:ZHENGZHOU YUTONG BUS CO LTD

Method for directly identifying and judging health state of IGBT (Insulated Gate Bipolar Translator) in electrical equipment

The invention discloses a method for directly identifying and judging the health state of an IGBT (Insulated Gate Bipolar Translator) in electrical equipment, which is characterized by comprising the following steps of: starting to pre-charge the electrical equipment; after charging is completed, a control instruction is sent out, waiting is delayed, and interference is eliminated through multiple times of measurement; and recording a measurement value under each instruction. Analyzing and processing the data according to the mode of the control instruction; when a certain value exceeds a certain range of a production record value, or is obviously different from data of devices at other positions, or the value is unstable and has a large fluctuation range, the device can be judged as a risk device. The invention provides a brand-new identification method, the health state of the power device can be quickly and accurately obtained, meanwhile, the modes of time-sharing detection, grouping detection and circulating detection can be supported, and the health state of the device is screened and identified through the absolute value and the relative difference value.
Owner:无锡科微半导体有限公司

Battery health state determination method and device, electronic equipment and storage medium

PendingCN114779109AAccurate health statusIn line with the actual state of healthElectrical testingElectrical batteryState of charge
The embodiment of the invention discloses a method and device for determining the health state of a battery, electronic equipment and a storage medium. The method for determining the health state of the battery comprises the steps that the charging and discharging current and the environment temperature of each charging and discharging cycle of the battery and the state of charge after the charging and discharging cycles are finished are obtained; determining an attenuation factor of each charge-discharge cycle according to the charge-discharge current of each charge-discharge cycle, the environment temperature and the charge state after the charge-discharge cycle is ended; and determining the health state of the battery according to the attenuation factor of each charge-discharge cycle, the current charge-discharge cycle number of the battery and the total charge-discharge cycle number of the battery. When the health state of the battery is calculated, the charging and discharging current of each charging and discharging cycle, the environment temperature, the charge state after charging and discharging, the current number of charging and discharging cycles and the total number of charging and discharging cycles of the battery are comprehensively considered, so that the determined health state of the battery is more accurate and better conforms to the actual health state of the battery.
Owner:HUBEI JINQUAN NEW MATERIALS CO LTD
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