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2794results about How to "Adjust in time" patented technology

Patent literature similarity measurement method based on ontology

The invention relates to a patent literature similarity measurement method based on ontology, and relates to the technical field of natural language information processing for the ontology. The method comprises the following steps: extracting a core technical scheme according to the structural features, the position features and the keyword features of patent literatures; constructing a model for the relation between thematic terms of patent classes; constructing a field dictionary according to the model for the relation between the thematic terms of the patent classes and segmenting terms and removing stop terms for the core technical scheme; extracting keywords and weight by combining the relation between the thematic terms to TF-IDF as TextRank term initial weight; training a FastText model, and generating a term vector; and calculating an EMD distance to obtain a semantic distance according to keywords, term weight and term vector. Compared with the prior art, the patent literature similarity measurement method based on the ontology solves the problem that the similarity is low due to the fact that the structural features, the field features, the term relation features and the semantics approximate expression of the patent literature are not fully considered.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Ship intelligent energy efficiency management system

ActiveCN107563576AScientific and effective energy efficiency managementReduce energy consumptionForecastingTechnology managementEconomic benefitsEngineering
A ship intelligent energy efficiency management system includes a basic function module and an advanced function module. The basic function module is used for monitoring and evaluation on energy consumption and energy efficiency; through automatic collection and online monitoring of ship navigational status and energy consumption condition data, by applying data correlation analysis and a data model algorithm, analysis, evaluation and predication are performed on ship energy consumption, energy efficiency and discharge, so that data evaluation and analysis results and assisting decision suggestions are provided for ship operation managers and intelligent energy efficiency management basic functions of ship energy efficiency real time monitoring, intelligent evaluation and optimization andcomprehensive report generation are implemented. The advanced function module is used for navigational speed optimization and establishing of a ship energy efficiency analysis model and a navigationalspeed optimization analysis model, so that the navigational speed optimization function based on voyage number plan and economic benefit is implemented. Real time evaluation is performed based on data collected in real time. Ship operation condition is regulated based on energy efficiency improvement on the basis of actual data, so that ship energy efficiency management becomes more scientific and effective.
Owner:中船重工信息科技有限公司

Laser radar coaxial transmitting and receiving system and coaxial adjustment method thereof

The invention relates to a laser radar coaxial transmitting and receiving system and a coaxial adjustment method thereof and belongs to the technical field of laser radar, and the method can be used for solving the problem that the coaxial adjustment period of a laser radar receiving and transmission light path is long. The laser radar coaxial transmission and receiving system is composed of a laser device, a transmission telescope, a first reflecting mirror, a second reflecting mirror, a receiving telescope, a concave lens, a convex lens, a beam splitter, an optical fiber, a CCD (Charge Coupled Device) camera, a computer and a motor rotation control system. The coaxial adjustment method based on the system comprises the following steps: adjusting the visual field definition of the receiving telescope; when the receiving telescope receives background light, obtaining a standard centroid position acquired by the CCD camera; starting the laser device, calculating the real-time centroid position of an image acquired by the CCD camera in real time, and calculating the deviation between the two centroid positions; and controlling the pitching and bearing of the first reflecting mirror until the deviation reaches an error tolerance, thus realizing the coaxial adjustment. The method provided by the invention is applicable to the coaxial adjustment of a laser radar receiving and transmission system.
Owner:HARBIN INST OF TECH

Strip steel quality forecasting, furnace condition early-warning and fault diagnosis method based on partial least square

The invention relates to a strip steel quality forecasting, furnace condition early-warning and fault diagnosis method, in particular to a strip steel quality forecasting, furnace condition early-warning and fault diagnosis method based on partial least square, comprising the following steps: model selection: multiple models are adopted to describe the process characteristics of corresponding steel types; data preprocessing: data alignment based on the model is carried out, synchronization relation of process input and quality output is built and data dimensionless treatment is carried out to eliminate effect of process data on modeling precision owning to non-unity of physical units; an off-line model building; a PLS (partial least square) model for strip steel quality and process variable is built by utilizing a great amount of historical data in normal working conditions; determining control limit of an monitor-control index; determining variable quantity control limit; and on-line forecasting and on-line detection and fault diagnosis. In the invention, the model for the strip steel quality and the process variable is built by PLS algorithm, so as to realize real-time quality forecasting, process monitoring and fault diagnosis.
Owner:SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE +1

Agricultural management and control system based on IOT (Internet of Things) cloud platform

The invention discloses an agricultural management and control system based on an IOT (Internet of Things) cloud platform, and relates to the IOT and agriculture crossing field. The system comprises amobile client, an IOT platform, and a local control terminal. The mobile client is connected with the IOT platform through the Internet or a mobile network, so as to complete the remote control and management of a local network. The IOT platform is connected with the local control terminal through the Internet, so as to complete the local data collection, calculation and optimization. The systemcan monitor the growth environment information of plants in real time, completes the safety data storage, calculation and analysis of mass data, quickly generates optimal data of the growth of plantsthrough the calculation capability of the cloud platform and an optimization algorithm, and sequentially drives execution systems to carry out the agricultural management. Meanwhile, the system carries out the analysis of the collected images of plants from plantation to harvesting through the image recognition technology, judges the production conditions, timely monitors the disease conditions, achieves the timely adjustment of the environment, reduces the loss, improves the yield, and promotes the industrialized and intelligent agricultural production.
Owner:HUAIHUA UNIV

Control method for electronic expansion valve

The invention provides a control method for an electronic expansion valve. When the outdoor environment temperature(Tho-A)is larger than or equal to 43 DEG C, opening of the electronic expansion valve is determined according to frequency change of a compressor. When the outdoor environment temperature(Tho-A)is smaller than 43 DEG C, the temperature is divided into different sections, and linear calculation curves of different target exhaust superheat degrees are set for each section; after the target exhaust superheat degrees and actual exhaust superheat degrees are obtained, fuzzy control is conducted, and then the opening transformation quantity of the electronic expansion valve is obtained. According to the section control method, fuzzy control is used, and different temperature ranges correspond to the calculation curves of the different exhaust superheat degrees, so that precise and optimal control is achieved. In addition, in combination with feedforward control technology, the reply efficiency of the electronic expansion valve is improved; accordingly, all air conditioner systems running in the different temperature ranges can run smoothly, and vibration is completely avoided. The control method has the advantages of being high in energy efficiency ratio, good in low-temperature heating effect, and the like.
Owner:MITSUBISHI HEAVY IND HAIER QINGDAO AIR CONDITIONERS CO LTD

Method for fast grading underground engineering surrounding rock in real time based on parameters while drilling

The present invention discloses a method for fast grading underground engineering surrounding rock in real time based on parameters while drilling. According to the method, a on-site drilling test is implemented; uniaxial compressive strength along the drilling depth direction of a tunnel face and a rock mass integrity index are obtained based on parameters while drilling measured in a drilling process; a relational expression of the parameters while drilling, the uniaxial compressive strength and the rock mass integrity index is built; in actual underground engineering, the obtained parameters while drilling are introduced into the above relational expression; and surrounding rock in front of the tunnel face is graded fast in real time according to a surrounding rock basic quality (BQ) index grading calculation formula. With the method for fast grading the underground engineering surrounding rock in real time based on the parameters while drilling provided by the invention, it only need to utilize a drilling machine in an engineering field to carry out a drilling test on the surrounding rock, and coring and an laboratory testing are not required, and the surrounding rock can be graded fast in real time, and grading efficiency is high; and the grade of the surrounding rock can be determined just based on the drilling parameters, and various kinds of testing modes in a traditional grading method are not required. The method of the invention has the advantages of simplicity and operational easiness.
Owner:SHANDONG UNIV
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