47 results about "Study Condition" patented technology

A method and system for processing captured image information in an interactive video display system. In one embodiment, a special learning condition of a captured camera image is detected. The captured camera image is compared to a normal background model image and to a second background model image, wherein the second background model is learned at a faster rate than the normal background model. A vision image is generated based on the comparisons. In another embodiment, an object in the captured image information that does not move for a predetermined time period is detected. A burn-in image comprising the object is generated, wherein the burn-in image is operable to allow a vision system of the interactive video display system to classify the object as background.

An intelligent desk and its control method are provided with a central controller, which is respectively connected with an infrared distance detection unit, an environment detection sensor unit, an illumination detection module, a manual control unit, an image acquisition unit, a brightness adjustment module, and a lifting motor , voice announcer, vibration prompt unit and communication module; identify the height of the user through the user's image information, realize the automatic adjustment of the seat height, monitor the distance between the user and the desktop, light intensity, environmental data and sitting posture, etc. through the sensor unit, respectively, When the set standard is exceeded, a voice or vibration reminder can be issued to ensure the learning environment and sitting posture. At the same time, parents can remotely monitor the learning situation and play a better supervision function.

The invention provides an online study test question recommendation method and system. The method comprises the steps of acquiring question answering information of a user and test question-checked skill information from a knowledge resource database, wherein the test question-checked skill information includes test question-checked knowledge point information and test question-checked abstract ability information; performing study condition diagnosis on the study condition of the user according to the question answering information of the user to obtain a study condition diagnosis result; determining a candidate recommendation test question set according to the study condition diagnosis result and the test question-checked skill information; recommending the determined candidate recommendation test question set to the user. According to the invention, test questions recommended to users are more targeted, the requirement for individualized online study of users is met and the study efficiency of users is effectively increased.

The embodiment of the invention discloses an optimum study scheme pushing method and system. The method comprises the steps that subject knowledge and skill maps are structured; all knowledge points in the subject knowledge and skill maps are subjected to scoring according to knowledge point scoring methods to obtain the score of each knowledge point; the optimum knowledge point is obtained according to the score of each knowledge point; the questions corresponding to the optimum knowledge point are obtained from question banks to form an optimum study scheme, and the optimum study scheme is pushed to a user. According to the optimum study scheme pushing method and system, through the construction of the subject knowledge and skill maps, the problems of standardization, visualization and priority of the knowledge points are solved, and the optimum study scheme is formed through the fact that the significance of each knowledge point in the subject knowledge and skill maps is accessed; the formed optimum study scheme is pushed to a student and is used for solving the defect that study can not be carried out according to the real studying condition of the student and the problem that the study of the strudent in traditional computer aided education is lack of pertinency, and therefore the student can obtain the largest study benefit in limiting time.

The invention discloses a self-adaptation teaching interaction system and method. The self-adaptation teaching interaction system comprises a question questioning and answering module, a study track recording module connected with the question questioning and answering module, a knowledge graph drawing recording module connected with the study track recording module, a question characteristic value matrix mark recording module connected with the question questioning and answering module and the study track recording module, a visualization report generation module connected with the knowledge graph drawing recording module and a study plan generation module connected with the knowledge graph drawing recording module. The method includes the following steps: the question questioning and answering module is used for answering questions, study conditions of students are transmitted to the study track recording module to be recorded, a knowledge graph is formed, questions with appropriate characteristic values are selected, the knowledge graphs are updated, and the questions are optimized. By means of the self-adaptation teaching interaction system and method, valuable screening is carried out according to the characteristic values, the specific questions suitable for exercising the different students are recommended to the different students, and therefore academic records of the students are rapidly improved.

The invention discloses a real-time class interaction teaching system which comprises a teacher unit, student units, a receiver, a PC in communication with a projector, and a network server. The teacher unit, the student units, the receiver and the network server are in communication with the PC. The network server is used for storing exercise information and student information. The PC is used for storing PPT files for teaching. By means of the technical scheme, various data of student classes can be collected and meanwhile processed and analyzed, real-time statistics in classes of teachers is achieved, off-class data is analyzed in real time, parents can learn studying conditions of students in real time, the class teaching link in the teaching process is better achieved, and then the teaching efficiency and quality of teachers are improved.

The invention provides a realization method for an interaction overturning classroom teaching system, comprising steps of providing a study guiding courseware by a teacher to students through an interaction overturning classroom preview subsystem to let the student to prepare study before class according to the guiding courseware, raising up a question or an understanding by students in a pop-up information input interface through an exploration study mode of the system by a student who encounters a problem in a study process, putting explanation data of the puzzling question on a coordinate position related to the problem to allow the teacher and students to see the information and perform replaying and discussion, checking, managing and screening questions needed by the lecturing through the interaction overturning classroom management subsystem, and exporting the questions to generate a study guiding research file. In the lecture, the teacher displays subsystem combines and quotes the study guiding courseware and the study guiding research study through the interaction overturning classroom, and the teacher can lecture with emphasis by aiming at the study condition so as to achieve the goals that the students lead the classroom teaching and the overturning classroom teaching is realized.

The invention relates to a classifying method of three-dimensional point-cloud data, in particular to a feature ball based classifying method of three-dimensional point-cloud data of an outdoor scene. The method includes the steps of 1, constructing a conditional random field model; 2, constructing a three-dimensional point-cloud feature ball; 3, calculating point feature vectors; 4, calculating edge feature vectors; 5, calculating group feature vectors; 6, learning parameters of the conditional random field model; and 7, subjecting the three-dimensional point-cloud data to inference classification. The method has the advantages that feature vectors of all levels of three-dimensional point clouds are accurately and comprehensively calculated through construction of the three-dimensional point-cloud feature ball, the three-dimensional point cloud of the outdoor scene is accurately and reliably segmented, point cloud groups uniform in property are formed, the problem that imperfect structure of the point cloud feature vectors and inaccuracy of point cloud segmentation caused by the factors such as complex geometric topological structure of the outdoor scene are effectively solved, and the effect of classified recognition of the three-dimensional point-cloud data of the outdoor scene is greatly improved.

The invention relates to a study condition management method, device and system. The method comprises the following steps of obtaining question answering information of a question answerer, wherein the question answering information comprises question stems and filled answers corresponding to the question stems; according to standard answers of the question stems, automatically judging whether wrong answers exist in the filled answers or not; if the wrong answers exist in the filled answers, generating practice data according to the error existing question stems corresponding to the wrong answers; storing the practice data in a prebuilt study base; obtaining a printing instruction of a target question answerer; obtaining target practice data corresponding to the target question answerer from the study base according to the printing instruction; printing the target practice data. The goal of finding the weak knowledge points of each student in a targeted way according to the wrong question condition of each student is achieved; study data are further generated for the corresponding student to practice. By adopting the technical scheme of the invention, the study efficiency of each student can be practically improved; the integration of wrong questions of students by teachers is not needed; the workload of the teachers is further reduced; the work time of the teachers is reduced.

The invention discloses a classroom simulation platform based on a cloud server, which changes conventional teaching modes and establishes an informationization platform of auxiliary teaching. Through a virtual simulation course simulation platform, a bridge of basic courses and professional courses is built, online integration of digital teaching resources and content is achieved, integrated courses meeting professional training requirements are formed, and a novel modern informationized teaching mode is established. Based on the cloud server, a cloud teaching resource library is constructed, which greatly improves the learning conditions of students and the teaching level of teachers. In addition, both the cloud server and the course platform can support terminal uses on mobile phones, tablet PCs and personal computers, are open to all teaching and research users of a school, form an open sharing teaching and learning system, and support mobile learning by means of fragmented time and learning supervision, so that the process of self-learning of the students is more controllable.

The invention discloses a speed optimization method for complex curved surface contact type tracking scan and measurement, which belongs to the technical field of complex curved surface type part measurement. With the speed optimization method, a measured complex curved surface part is subjected to tracking scan and measurement path planning, and the traditional tracking scan and measurement control algorithm is combined with a control mobile attenuation code (CMAC) learning controller so as to predict and regulate the tracking scan speed in advance. The bulb space coordinate of each sampling point serves as an input condition of an artificial cerebellar articulation model controller, a measuring head deviator value is used as a CMAC learning condition, and a CMAC output weight is regulated by a learning module. According to the speed optimization method, the measurement efficiency of the complex curved surface with a welding line and a cusp area can be drastically improved without improving the hardware system response performance of measurement equipment. The speed optimization method for the complex curved surface contact type tracking scan and measurement has the advantages of low cost and strong practicality.

The invention relates to a networking interactive system, which is characterized by including a teacher working desktop, a student studying desktop and a parents assisting desktop, wherein, the teacher working desktop includes routine office work, lesson preparation before class, lesson teaching in class, guidance after class, specialty files and interactive window; the student studying desktop includes listening class, resource library, growth room, self-study room, experience library and interactive window; the parent assisting desktop includes growth book, busy book, reading library, message board, message access and contact book. The invention realizes the networking of teaching resource and technology, meets the desire of teachers and realizes the teaching demands for various requirements and changes. The invention can ensure more schools to share better educational equipments and more students to enjoy better study conditions, reduce dust pollution caused by the traditional blackboard teaching mode in classrooms, improve the interest of students in study and the teaching effect, promote the process of education info, and accord with the promotion requirement of Class Access to ICTs.

The invention belongs to the field of plant disease and pest quarantine, and provides a method for detecting phytophthora parasitica in soil. According to the method for DNA extraction and molecular detection of the phytophthora parasitica in the soil, the conventional isolating culture method is eliminated, and the detection period is greatly shortened; compared with a common polymerase chain reaction (PCR) detection method, the method has the advantages that: a subsequent treatment process is not needed, and a result can be monitored in real time; primers are designed on the basis of a changeful area of pathogen ITS, and corresponding bands are not produced when similar species are amplified; the method is high in specificity and suitable for fluorescent quantitative PCR conditions; because 2 percent of polyvinyl pyrrolidone (PVP) is added into the total DNA extraction buffer solution of the soil, the pollution of partial impurities in the soil is effectively removed, the influence of the impurities on the PCR effect is reduced, and the detection sensitivity of fluorescent quantitative PCR is improved; meanwhile, the fluorescent quantitative PCR system and the reaction conditions are obtained according to the size study conditions of the designed primers, so the detection sensitivity is high and can reach 2fg / mu l.

The invention discloses application of Lunasin polypeptide in the aspect of preparing substance with weight-reducing activity. Lunasin is substance with weight-reducing activity and is prepared by inhibiting differentiation of mouse preadipocyte (3T3-L1) through a PPAR gamma passage. The application includes: using an MTT method to detect influence, on 3T3-L1 adipocyte activity, of Lunasin at different dosages; detecting inhibiting effect, on adipocyte differentiation, of Lunasin at different dosages. Compared with current study conditions of Lunasin, the application has the advantages that the application shows that Lunasin can inhibit differentiation of insulin-induced 3T3-L1 cells, reduce accumulation of lipid droplets in lipid and inhibit mRNA expression of PPAR gamma, Lunasin presents dosage dependence, and effect of Lunasin with dosage higher than 50ug / mL is better than that of rosiglitazone of 5ug / mL; the application shows that Lunasin has potential weight-reducing effect.

The invention discloses a device for testing explosion and propagation characteristics of explosives. The device comprises a front end cover, a tank body, a double-headed stud, a sensor, a sensor mounting seat, a liner, a rear end cover, a positioning nut, a flange ring, a stud, a pressure transfer tube and a pressure transfer tube cover. According to the technical characteristics, an explosion tank and a pressure transfer pipeline are arranged in the device, the sensor is assembled in the wall surface, and shock-wave pressure data and heat effect data at each position point can be acquired; and moreover, according to the organic glass front end cover, the fireball change data in the thermobaric explosion process can be acquired. The tunnel and warship cabin interior explosion environment used by thermobaric explosives is simulated, and experimental study conditions of the explosion and propagation characteristics of the thermobaric explosives in a closed environment are met. The device disclosed by the invention is convenient to use, low in cost and suitable to be used in a laboratory environment.

The invention provides a Chinese teaching system and an application method thereof, and relates to the field of teaching. The system comprises a master controller, an interaction module, a beautiful article appreciation analysis module, a mainframe module and a plurality of son-machine modules, wherein each son-machine comprises a first man-machine operation module, a first identity recognition card, a task receiving module, a test question training module, a difficult question summary module and a quick search module, the mainframe module comprises a second man-machine operation module, a second identity recognition card, a data bank, a test question summary evaluation module, a data sending module and a courseware sharing module, and the master controller comprises a central processing unit, an authentication device, a control panel, a communication interface, a storage machine, a data output module and a character / voice inter-transformation module. The system can make Chinese teaching contents richer and make forms more flexible, can culture interests of students on Chinese, can improve the teaching quality of Chinese effectively, can grasp study conditions accurately, can have a definite object in view, can make students strengthen practice of unskilled parts, and can improve the study efficiency.

Ignition-period stability in normal state and transition state is realized. Whether knock exists is detected based on a signal from a konck sensor (S6). The ignition period is delayed when the knock exists (S7). The ignition period is brought forward when no knock exists (S12). After knock is detected and the ignition period is delayed, knock control sensitivity is reduced in a preset response delay time period (S4,S5) for preventing over-delay. Besides, when no knock exists and the ignition period is brought forward, bringing-forward of the ignition period is forbidden in a preset response delay time period (S11). According to a preset studying condition, after the knock is detected and the ignition period is delayed, the ignition period is temporarily kept to the delayed ignition period, and the changed response delay time of the knock level relative to the ignition period is studied (S3,S14-S17).

The invention discloses an intelligent interactive teaching system for English teaching, and belongs to the technical field of English teaching. The intelligent interactive teaching system for Englishteaching comprises a plurality of student terminals, a server, an interactive unit and a plurality of teacher terminals. The student terminals comprise student communication modules and input / outputmodules B; the server comprises a data receiving and dispatching module, an identity verification module and a database; the interactive unit comprises a single training module, a combined training module, a measurement and control module, a summarizing module, an oral training module, a self-definition module and a voice / video call module; and the teacher terminals comprise task allocation modules, student assessment modules, teacher communication modules and input / output modules A. Different test questions are adopted for training according to the study condition of different students, so that teaching has pertinence, the teaching efficiency is improved, study of the students is greatly facilitated, and communication interaction between teachers and teachers, between the teachers and thestudents and between the students and the students is realized.

The invention discloses a method for adopting a collective user name technology in remote educational training. The method comprises one or more steps: an educational training management institution opens a user type option on a training digital platform management background according to the training management demand and selects a corresponding user type; when a user logs in a training remote platform, a platform system firstly automatically identifies whether the user is a collective user; if the platform system identifies that the user is the collective user, the platform system prompts the user to enter account information of all students included under the collective user name; and when the user is trained, the user is firstly prompted to check in the students, and after the course study is completed, the platform system automatically stores the study conditions of the training into a study progress of the checked in students in the training, and automatically calculates the total study progress of each student.

The invention discloses a human body model for knee joint replacement simulation operation. The human body model comprises a model main body and a knee joint module detachably connected with the modelbody, wherein the model body and the knee joint module respectively comprise epithelial tissues, muscle tissues and connective tissues reoccurring by simulating the physical characteristics of livingbodies and the connection relationship; the model body and the knee joint module form a whole through the connection among the epithelial tissues and / or muscle tissues and / or connective tissues of the model body and the knee joint module. The human body model for the knee joint replacement simulation operation provided by the invention has the advantage that the current artificial knee joint replacement operation study condition can be improved.

The invention relates to a teaching system based on an electronic paper desktop. The teaching system comprises a student terminal, a teacher terminal and a course service terminal, wherein the studentterminal and the teacher terminal are respectively connected with the course service terminal through wireless signals; the course service terminal stores teaching contents; the teacher terminal controls the course service terminal to send teaching contents to the student terminals and masters the study condition of the students; the student terminal uses the electronic paper desktop to receive the class teaching content sent by the course service terminal for students to learn, records the electronic interaction information in the study process in real time, and sends the information to thecourse service terminal to be stored. The school teaching contents can be flexibly and conveniently provided; students use electronic paper for study in class; a great amount of book paper is saved; the environment protection is facilitated; the student burden is reduced; though exam paper checking by a machine and homework checking by the machine, the workload and work intensity of teachers can be reduced; parents can log in a course server to know the study condition of children; the joint education by schools and families is realized.

The invention discloses a study information acquisition method and an electronic device. The method comprises the steps that the electronic device searches other surrounding electronic devices of which grade information is the same as that of a user of the electronic device and obtains study information of the users of the other electronic devices, and generates a study report through integrationof the study information of the users of the other electronic devices and the study information of the user of the electronic device. Through application of the embodiment of the invention, the studyinformation of the users of the other electronic devices of which grade information is the same as that of the user of the electronic device can be obtained, so horizontal comparison is carried out between the user of the electronic device and the users of the other electronic devices, the practical study condition of the user of the electronic device can be reflected relatively accurately, and the reliability is high.

The invention relates to a preparation method and application of B, N and Ti co-doped floating environment repair material and belongs to the field of environment repairing.Expanded perlite low in cost and easy to separate and recycle is used as a carrier made into B and TiO2 bearing expanded perlite, and the perlite is then dried and calcined at 400 DEG C in ammonia atmosphere to obtain the B, N and Ti co-doped floating environment repair material.Organic pollutants in an environment can be efficiently degraded, and the novel low-price efficient easily-recyclable reusable organic wastewater environmental repair material is obtained by studying conditions of use and recycling method of the organic pollutants.

The invention relates to the technical field of teaching and education, in particular to a family education auxiliary system and method for improving study effects. The system comprises two parts including a parent module and a student module, wherein each part uses units or chapters or lessons as the unit according to different subjects, and a complete subject system is finally formed. When the software is used for supervising the study conditions of students by parents, the operation is in a sequence of firstly entering the parent module for investigation, then entering a student module for study and next entering a parent module for investigation. The effect of timely supervision and solidification after the school education of children in schools is achieved. The system and the method help the parents master the study conditions of the children in the schools, and the condition that the parents do not know the condition when the school records of the children greatly descend can be avoided. Meanwhile, the solidification of the children pre se on the knowledge studied in the schools can also be favorably realized.

The invention discloses a remote education training system. The remote education training system comprises a server terminal, a training plan formulation module, a training module, an evaluation module and a data storage module, wherein the input end of the server terminal is connected with the training plan formulation module, the training plan formulation module comprises training content arrangement and training time arrangement, the output end of the server terminal is connected with the training module and the evaluation module, the training module comprises training content, comprehensive testing and comprehensive evaluation, the output end of the comprehensive testing is connected with data analysis, and the evaluation module comprises daily performance and style moral character. With the remote education training system, the direct on-site interaction between a trainer and a trainee can be realized, the study conditions of the trainee also can be tested, the training effect isgood, meanwhile, the training capacity of the trainer also can be evaluated, thus the selection for the training talents is facilitated, and the trainer can recognize the individual limitations and makes promotion further.

The invention discloses an angle-adjustable assembly table and chair. The table and chair comprise a body isolation plate, converting installation frames, converting support racks, an angle-adjustable device, a movable plate body and a positioning device. The converting installation frames are arranged on two sides of the body isolation plate. A converting support rack is arranged in each converting installation frame. A converting support horizontal beam is arranged on each converting support rack. The angle-adjustable device is installed on the support horizontal beams. One end of the angle-adjustable device is hinged to the movable plate body. A drive device is arranged on the angle-adjustable device, and drives an auxiliary hinged seat to move upward and downward. The auxiliary hinged seat is installed in the movable plate body through an auxiliary slide rail. The fast switching between a table function and a chair function can be achieved through adjusting the position of a weight bearing plate to quickly adapt to the face-to-face discussion of students and cooperative communicative teaching. The inclined angle of the plate body is adjusted through the angle-adjustable device to better suit multiple studying conditions, and reduce the fatigue caused by long time head-down postures.

The invention discloses an internet of things family education system and method. The system comprises a teacher end, a parent end, a server, a PPT courseware projection module, a video recording and playing module and a door control module, wherein the teacher end and the parent end are connected with the server respectively; the PPT courseware projection module is used by the teacher end to project teaching content and by students to acquire the teaching content; the video recording and playing module is used for recording a studying video of the students, and is used by the parent end to get the studying state of the students; the door control module is used for automatically analyzing personal information of the students and judging whether the students are allowed to enter a classroom to study or not. Through the scheme, parents, the students and teachers can join in together, convenience is brought to the teaching of the teachers, and meanwhile the parents can get the studying condition of the students conveniently.