Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

104 results about "Multiple days" patented technology

Forest fire fire point detection method based on MODIS

The invention discloses a forest fire fire point detection method based on an MODIS. Firstly, time sequence data is established for multiple days of MOD02 and MOD03 data from the MODIS, time sequence daily value data of multiple days of NDVI and brightness temperature is obtained, break points in the time sequence daily value data of the NDVI and brightness temperature are recognized through a time sequence break point recognition algorithm, and the recognized break points serve as potential fire points; relative fire points are distinguished from the potential fire points through a space context analysis method; real fire points are extracted from autonomous modular sensor data, the relative fire points are compared with the real fire points, and the correctness and leakage rate of the relative fire points are verified. The potential fire points are distinguished through the method that the time sequence data break points are detected through the BFAST algorithm without determining the potential fire points through fixed threshold values, therefore the algorithm has higher adaptability and flexibility for fire point distinguishing, the defects that the regional difference cannot be met by distinguishing the potential fire points through the fixed threshold values is overcome, and the fire point correctly discriminating rate is increased.
Owner:BEIJING NORMAL UNIVERSITY

Urban functional domain detection method and system by means of microblog position information

Provided is an urban functional domain detection method by means of microblog position information. The method comprises the steps that a survey region is selected, grid division and division of microblog time periods are conducted on the survey region, functional domains where various regions belong to are predicted according to microblog data for multiple days; the microblog data for multiple days are separated according to working days and weekends, and clustering regions and corresponding functional domain research results are updated; functional domain verification is conducted according to POI data in all the clustering regions, functional domain verification is conducted according to microblog text data in microblog time mode peak points of all the clustering regions, and functional domain verification is conducted according to subject terms of microblogs in all the clustering regions. According to the urban functional domain detection method by means of the microblog position information, the urban functional domains are explored by means of the microblogs containing the position information, data acquisition is convenient, the verification results are effective and rapid, the cost is reduced, the method can be used for detecting change tendency of the urban functional domains, and the method can help urbanists and decision makers to conduct scheming on public service, public resources and the like.
Owner:WUHAN UNIV

Method for optimizing operation simulation of multi-energy combined power generation system

The invention discloses the technical field of electric power system operation and dispatching, and particularly relates to a method for optimizing operation simulation of a multi-energy combined power generation system. Multiple days or a week is selected as a dispatching period, according to a predicted deviation value of intermittent power source output of wind power, photovoltaic energy and the like, a predicted scene of the output of the wind power and the photovoltaic energy is established; the operation position of a hydroelectric generating set with the output capable of being flexibly adjusted in a loading curve can be firstly determined in the multi-energy combined power generation system, the assembly mode of a thermal power generating set is arranged from an initial time frame of the dispatching period, reasonable load distribution is conducted on each type of set with operation cost optimization serving as a local target so that a load regulation abundant zone for the sets operated at each time frame can be formed, and finally the load regulation abundant zone of the sets at each time frame is continuously selected and updated, and therefore combination of the sets in the whole dispatching period is finally achieved and allocation of load between the sets is achieved. The method guarantees balance of system power and stable operation.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2

Partition power grid bus load prediction system based on weather information

The invention discloses a partition power grid bus load prediction system based on weather information. Real-time weather information and prediction weather information are used in the system, load prediction of all buses of converting stations of 500 kV and 220 kV is achieved, and recognition of power grid partition and partition load prediction are achieved. A prediction algorithm used by the system comprises a classical algorithm and an intelligent prediction algorithm, the classical algorithm comprises unary linear regression, quadratic polynomial regression, self-adaptation index prediction, index prediction, increasing rate prediction, nonhomogeneous index prediction, a B. Compertz model and a logistic model, the intelligent prediction algorithm comprises an optimized BP neural network algorithm and an optimized particle swarm algorithm, and the system selects a prediction algorithm in a preferential mode during a prediction process. The system is a day-ahead bus load prediction system, bus load and partition load of each time interval from morrow to multiple days in future are predicted, and prediction content is active load of 96 points of a predicted day.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3

Preparation method for load transition metal catalyst for ozone oxidation as well as load transition metal catalyst and application thereof

The invention provides a preparation method for a load transition metal catalyst for ozone oxidation. The preparation method comprises the following steps: placing a catalyst carrier raw material in a NaOH aqueous solution, soaking, drying, preparing activated aluminum oxide sol, soaking catalyst particles in the activated aluminum oxide sol, drying and roasting, so as to obtain a coating, repeating the steps until a catalyst carrier coated for multiple times is obtained, enabling the content of the activated aluminum oxide coating to be 5-15% of the catalyst carrier in weight, soaking the catalyst carrier in an aqueous solution containing active constituents of transition metal, dying and roasting, so as to obtain the load transition metal catalyst. The load transition metal catalyst is high in ozone catalytic activity, the COD concentration of organic wastewater can be reduced to 50 mg/L below from 100 mg/L by the load transition metal catalyst, the load transition metal catalyst has a stable catalytic effect during the process of treating organic wastewater through catalytic ozonation, and the catalytic activity is not changed basically after the load transition metal catalyst continuously runs for multiple days in a fixed bed reactor.
Owner:PURUIQI ENVIRONMENTAL ENG BEIJING

In-situ remediation method of heavy metal polluted site

The invention discloses an in-situ remediation method of a heavy metal polluted site, which is characterized in that a stabilizing agent is completely covered on the polluted site through throwing a heavy metal-chelating stabilizing agent on the polluted site with low water content, thus secondary pollution of heavy metal pollutants to the environment is avoided; the polluted site is turned and stirred for multiple times by using an amphibious excavator, the stabilizing agent and the heavy metal pollutants can fully react to form a stable material, thus ensuring that the leaching concentration of heavy metals is in an allowable range; and concretion is carrying out for multiple days through airing, the treated site can be used for soil improvement, landscaping or landfill backfilling according to difference of the water contents and the heavy metal in and outlet concentrations. Therefore, compared with the prior art, the in-situ remediation method has the advantages of ensuring stabilizing effect of the heavy metals, importantly solving the problem of soft foundation encountered by common stirring modes, and ensuring that chemicals are fully mixed with the polluted soil through adopting common excavators for site stirring if the foundation is allowable.
Owner:TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION +1

Public transportation equipment matching method

ActiveCN109637134ASolve the difficulty of not being able to carry out follow-up passenger flow mining on bus dataMeet the use requirementsDigital data information retrievalDetection of traffic movementArrival timeMultiple days
The invention belongs to the technical field of intelligent transportation systems, and relates to a public transportation equipment matching method. The public transportation equipment matching method comprises the specific steps that (1) the card sweeping equipment number, the line number, the line name, the card number, the transaction date and the transaction time of passenger card sweeping are collected; (2) public transportation arrival and departure historical data, the GPS equipment number, the line number, the line name, the stopping station, the arrival time and the departure time are collected; (3) matching candidate sets are generated; (4) time distribution similarity is calculated; and (5) correlation results can be obtained through the step (3) and the step (4), it can be known that card sweeping equipment p and GPS equipment q belong to the same vehicle through the data of one day, in order to avoid accidentality, the card sweeping equipment number and the GPS equipmentnumber of the same vehicle must be correlated in the data in multiple days, the data of all days are used in cooperation, the mode of the equipment matching results is obtained, and the correspondingrelationship between the card sweeping equipment and the GPS equipment can be obtained. The public transportation equipment matching method is ingenious in design concept, the application environmentis friendly, and the market prospect is broad.
Owner:QINGDAO UNIV

New coronal pneumonia patient rehabilitation time prediction method and system based on deep learning

PendingCN111815608AAccurately predict recovery timeAchieve the purpose of diagnosisImage enhancementImage analysisLung lobeRadiology
The invention discloses a new coronavirus pneumonia patient rehabilitation time prediction method and system based on deep learning. The method comprises the steps: obtaining multi-day CT sequence images of a new coronavirus pneumonia patient, and carrying out the preprocessing of the multi-day CT sequence images; respectively inputting into a lung lobe segmentation model and a pneumonia segmentation model, and respectively extracting the lung lobe region area and the lesion region area of multiple days; calculating according to the ratio of the lesion area to the lung lobe area for multiple days to obtain a lesion area ratio value for multiple days; and fitting a Gaussian process model by using the lesion area proportion R of multiple days to predict the rehabilitation time of the novel coronavirus pneumonia patient. According to the lung lobe and pneumonia region segmentation method, the Densenet is used as the DeepLab V3 + framework and the 3D UNet framework of the backbone to segment the lung lobe and pneumonia region, the segmentation is quick and effective, the Gaussian process can accurately predict the rehabilitation time of the patient, and a reference is provided for medical resource allocation.
Owner:北京小白世纪网络科技有限公司

Air conditioner timing power on-off controlling method, device, remote controlling device and system

The invention discloses an air conditioner timing power on-off controlling method, a device, an air conditioner remote controlling device and an air conditioner system, and relates to the field of air conditioners. The air conditioner timing power on-off controlling method comprises the steps that a timing power on-off mode set by a user and timing time information corresponding to the timing power on-off mode are acquired; the timing power on-off mode comprises an one-day timing mode and a multi-day timing mode; and timing power on time information and/or timing power off time information are generated according to the timing power on-off mode and the timing time information and are sent to an air conditioner unit, so that the air conditioner unit executes relative timing power on and/or timing power off operation. According to the air conditioner timing power on-off controlling method, the device, the remote controlling device and the system, a timing power on-off function can be set by a user specific to multiple days, setting for the timing power on-off function everyday is not required, multiple requirements of the user can be met, unnecessary energy waste can be reduced, functions of energy saving and emission reducing are achieved, and usage sensitivity of the user is enhanced.
Owner:GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products