686results about How to "Improve practical ability" patented technology

A smart home system based on a cloud computing includes: a home gateway connecting a home network device to an external network, the home network device being connected to a home network at each home. The system further includes and a cloud server, connected to the home gateway, for collecting contents information stored in the home network device and resource information of the home network information and performing a unified management of the contents information and the resource information at the each home.

The invention relates to a diameter-variable tube washing robot with parallel four-rod device, wherein it is formed by several same tube washing devices, that connected by flexible springs; each unit is formed by support, flexible panel and washing head; the support is formed by several parallel four-rod devices around the central axle; via torsion spring, the parallel four-rod device will open, and the rolling wheel on the swing rod will contact the inner wall of tube, to support the whole tube washing device; when meeting obstacle, the four-rod device will overcome torsion spring to contract; the washing head is mounted on the connecting rod of four-rod device, to contact the inner wall of tube via spring; the flexible panel on the back swing rod can block the inner fluid, to generate pushing force, and move the support forwards. The invention can avoid additive powder and clean any tubes.

The invention provides an unsaturated seepage physical simulator for soil in an aerated zone. The unsaturated seepage physical simulator comprises a tested soil tank, a supplementing and draining system and a measuring system, the tested soil is contained in the tested soil tank, the supplementing and draining system consists of a lateral supplementing and draining unit, a bottom supplementing and draining unit and a top supplementing and draining unit, the lateral supplementing and draining unit consists of a water supplementing device and a water draining device which are respectively mounted on two side walls of the tested soil tank, the top supplementing and draining unit consists of a rainfall device, an evaporation device and an accumulated water infiltration device, and the measuring system comprises a soil solute measuring unit, a soil moisture measuring unit, a soil water potential measuring unit and an underground water level measuring unit. The large unsaturated seepage physical simulator for the soil in the aerated zone not only can sufficiently simulate various conditions of soil in the aerated zone, but also is convenient in measurement and low in errors.

The invention relates to the technical field of computer vision recognition processing and provides an educational toy suite. The educational toy suite comprises a support, a helmet detector and a base plate, the support is installed on the base plate, and the helmet detector is installed on the support; a first groove is formed in the upper portion of the base plate; the bottom of the support is provided with a protrusion, the protrusion is installed in the first groove, a second groove and a third groove are formed in the top of the support, and the second groove is used for storing a tablet computer; the helmet detector is installed in the third groove. By means of the educational toy suite, the image acquisition scope of a camera of the tablet computer is expanded, the visual angle is enlarged, great interactivity is achieved, game experience is more vivid, the educational toy suite is helpful for alleviating asthenopia, harm to eyes is lowered, operational ability of children is improved, the children are promoted to make progress continuously, intelligence is developed, enjoyment is improved, the educational toy suite is more convenient to carry, move, install and detach, the cost is saved, and maintenance is facilitated.

The invention discloses a new curriculum learning system which comprises an interaction-education cloud learning server, an internet, a portal management center system and a demonstration center system, wherein the portal management center system and the demonstration center system are connected with the interaction-education cloud learning server through the internet respectively; the interaction-education cloud learning server is also connected with client terminals through the internet; and the portal management center system and the demonstration center system transmit education resource information to parents, teachers and students positioned at the client terminals through the internet so as to realize sharing. The interaction-education cloud learning server is connected with a variety of functional modules such as a real-time courseware module, an online answering module, an online error book module, a PAD (Pure Audio Design) error book module and the like. The new curriculum learning system provides a brand-new network distance education mode to ensure that high-quality educational resources can be utilized in maximization, the learning activity, interactivity and diversity are increased, and an interactive cloud learning platform for online education is established.

The present invention discloses a microblog data analysis based hot news prediction method and system. The method comprises: acquiring news reports from mainstream news sites and microblog user response information caused by the news reports on the microblog; carrying out word segmentation and word frequency statistics to a microblog text, calculating a TF-IDF value of a word, and converting the value into a microblog topic described by using a vector space; classifying the microblog topics, counting each quantitative index for describing the microblog topics, and calculating each hot index of news; and using a multivariate linear regression algorithm to learn sample data, establishing a hot news prediction model, and determining whether the latter news can become a hot news or not. The system comprises a data acquisition module, a text analysis processing module, a data statistical analysis module and a hot news prediction module. According to the method and system disclosed by the present invention, the trend of news reported by media in microblog topics is comprehensively analyzed to predict whether the news can become a hot news or not in public sentiments, so that the problem of early prediction of hot news can be well solved.

The invention relates to a virtual reality man-machine interaction children education experience system based on a mobile terminal. The virtual reality man-machine interaction children education experience system based on the mobile terminal comprises a mobile equipment terminal, large screen display equipment, somatosensory interaction equipment and a background server; the mobile equipment terminal is provided with a pattern recognition and data recognition module and a data interaction client, the pattern recognition and data recognition module and the data interaction client are connected with the background server through a network, the background server is connected with the somatosensory interaction equipment, and the somatosensory interaction equipment and the data interaction client are connected with the large screen display equipment. Compared with the prior art, the virtual reality man-machine interaction children education experience system based on the mobile terminal can be presented in a way of dynamic sound, images and interaction, teenagers can understand scientific knowledge more vividly, three-dimensionally and thoroughly, and the operational ability of children is enhanced.

The invention belongs to the technical field of nucleic acid detection, and relates to a mycobacterium tuberculosis complex detection kit and method based on a CRISPR-Cas12a system. According to the kit, the detection sensitivity is improved by adopting a recombinase polymerase amplification technology, CRISPR-Cas12a is used for specifically targeting a mycobacterium tuberculosis complex target sequence and then activating the bypass cutting activity of Cas12a, and a mycobacterium tuberculosis complex can be sensitively and specifically detected from sputum. The kit and method have the advantages of being non-invasive, capable of detecting the mycobacterium tuberculosis complex frequently and repeatedly, high in detection speed and the like. Compared with an existing PCR detection method,the method based on the CRISPR-Cas12a system does not need a thermal cycler with heating and cooling functions, can detect the mycobacterium tuberculosis complex in sputum through fluorescence reading, has the advantages of being low in cost, easy and convenient to operate, high in sensitivity, good in specificity and the like and is suitable for clinical large-scale application.

The invention relates to a CRISPR detection primer set for MTBC (Mycobacterium Tuberculosis Complex) and use thereof, and belongs to the technical field of gene detection. The primer set includes an amplification primer pair and a crRNA; the amplification primer pair is used to amplify a common conserved sequence of M. tuberculosis, M. bovis, M. africanum, M. canettii, and M. microti; the crRNA includes an anchor sequence and a guide sequence, wherein the anchor sequence is bound to a cas protein, and the guide sequence is matched with a targeted RNA fragment in the common conserved sequence.Through the primer set based on CRISPR detection technology, the detection of common conserved sequences of M. tuberculosis, M. bovis, M. africanum, M. canettii, and M. microti by CRISPR detection canquickly perform on-site detection of MTBC, and have the advantages of high specificity, high sensitivity and simplicity.

The invention relates to an electrical test equipment simulation device and belongs to the field of high-voltage electrical test teaching. The electrical test equipment simulation device comprises an MCU (micro controller unit) processing unit, a display unit, a miniature printer, keys, a data communication unit, a control communication unit and the like, can be used with a high-voltage electrical equipment simulation model to realize entitative simulation training, can also be used with a PC (personal computer) upper computer to realize computer software simulation training, and can be further applied to a comprehensive training system which integrates the entitative simulation training and the computer software simulation training. Using the electrical test equipment simulation device can realize training of relevant personnel in the field of high-voltage electrical test teaching, and the high-voltage electrical test teaching is safe, reliable and high in operability.

The invention provides an intelligent configurable programming toy of the Internet of Things and belongs to the field of the Internet of Things, artificial intelligence, education and toys. The intelligent configurable programming toy mainly comprises a configuration programmer, a central processer, a memory, a data communication module, a multifunctional sensor and a multi-point actuating mechanism. An open platform is applied, so that devices of the Internet of Things are integrated, entertainment characters of different toys are configured into a whole, a user performs configuration by choosing hardware with hands and even performs programming with the hands, and the toy is arranged into an expected action, from and interaction manner. The operational ability, the learning ability, the cognitive ability, the imaginative ability and the like of the user can be improved. By the aid of the Internet of Things, storage data of the intelligent toy can be shared, users can exchange arrangement methods and contents of the intelligent toy and learn from each other, the forms and actions of the toy are ever-changing, the contents are rich and colorful, other devices of the Internet of Things can be controlled, an interaction function of the toy and the Internet of Things is realized, and the intelligent toy is integrated into people's life, so that the people's life is improved.

The invention relates to a rat leg motion reconstruction test method based on spinal nerve function electrical stimulation. Corresponded three-dimensional coordinates based on spinal segments are established while rat spinal cord is focused, a tester can find out an electrode implanting position rapidly and accurately, and the success rate of tests is increased; excitation pulses are transmitted to two electrodes inserted into the rat spinal cord alternately, coherent stretching motions of the rat leg can be implemented, and the tester can grasp the process of rat spinal cord electrical stimulation more directly; meanwhile, the electromyographic signals of rat leg muscles can be collected through an electromyographic monitor and are used for comparison and analysis. By the aid of test method, the rat leg stretching motion reconstruction based on the spinal nerve function electrical stimulation can be completed, and important significance is provided for the fields of scientific research and teach; the operating ability of the tester is improved, the tester can grasp complex spinal cord stimulation tests which are difficult to grasp more easily, and the further academic research of the tester can be benefited.

The present invention discloses a building power supply and distribution teaching technology simulation training system. The system comprises a computer monitoring system, a transformer simulation experiment training operation console, an in-building high-low voltage electrical system and a building low-voltage distribution system; the computer monitoring system is communicated with the transformer simulation experiment training operation console, the in-building high-low voltage electrical system and the building low-voltage distribution system, and the transformer simulation experiment training operation console is communicated with the in-building high-low voltage electrical system and the building low-voltage distribution system. The building power supply and distribution teaching technology simulation training system can allow the high-voltage electrical system and the low-voltage electrical system to form an integrated building power supply and distribution teaching technology simulation training system so as to help students to have an integrated understanding for their learning knowledge and supply one-stop learning operation for students and improve their manipulative ability.

A system device for comprehensive training of electric locomotive overhaul based on analog simulation is characterized by comprising a simulated electric locomotive, a simulation control system, a simulated locomotive fault detection system and a locomotive overhaul teaching and training system, wherein the simulation control system controls the simulated electric locomotive, a locomotive fault isreproduced through the simulated locomotive fault detection system, and analog simulation teaching and comprehensive training are conducted through the locomotive overhaul teaching and training system. The simulated electric locomotive adopts a split structure design, 1/3 of a simulated locomotive body retains the primary form, and 2/3 adopts a semi-split transparent structure. The internal structure of the locomotive can be seen through the split structure, such as roof high-voltage electrical apparatus, low-voltage electrical apparatus, auxiliary electrical apparatus, an air line and a braking system, so that trainees can have a deeper understanding of the internal structure and installation method of the locomotive.

The invention relates to a teaching and experiment instrument of an automatic control theory, belonging to the technical field of teaching and experiment instruments. The instrument is additionally provided with a signal source module, a wireless communication module, a temperature control and perception module, simulation experiment control software, and the like. The instrument has the advantages that a one machine controls a plurality of instruments, or a plurality of machines control an instrument to finish all kinds of teaching experiments of the automatic control theory through an external computer by adopting a wireless way, thereby increasing the teacher-student interaction ability and the teaching demonstration function; the adopted simulation experiment control software can be independent of interment hardware to finish various simulation teaching experiments of the automatic control theory and compare the difference of the theory and the practical laboratory data to grasp the difference of the engineering practice and the theory; separating from the cooperation of the computer or the simulation software, the hardware of the instrument can finish various teaching experiments of the automatic control theory independently, thereby ensuring the flexibility of the experiment; the software and the hardware of the instrument are combined to finish various teaching experiments of the automatic control theory, and the software and the hardware depend on and combines with each other to increase the reliability and the convenience of the experiment. The teaching and experiment instrument of the automatic control theory is a regeneration product and is worthy of adoption and generalization.

The invention discloses a virtual assembly system based on a marine diesel engine. The virtual assembly system is mainly characterized by establishing a diesel engine model through 3dMax and carrying out setting for realizing disassembly and assembly function on each part of the diesel engine model in Unity 3D. The diesel engine model comprises a general assembly and a plurality of subassembly bodies. The virtual assembly system mainly comprises a structure cognition module, an assembly training module and a navigation module. The structure cognition module is used for displaying exploded views of the general assembly and the plurality of subassembly bodies, and when a mouse clicks a part, displaying text messages of the part. The assembly training module comprises a disassembly and assembly animation module and an animation control module. The disassembly and assembly animation module is used for displaying each assembly drawing disassembly and assembly process; and the animation control module is used for controlling states of the disassembly and assembly animation module. The navigation module is used for navigation jump between the structure cognition module and the assembly training module. The virtual assembly system realizes disassembly and assembly training and teaching of the diesel engine without on-site actual operation, and is low in cost and good in teaching effect.

The invention discloses a train set maintaining teaching training system based on VR technology and a training method thereof, and belongs to the train set maintaining training field. The train set maintaining teaching training system comprises a central control unit, a VR simulation assembly, a train set analog simulation unit, a train set maintaining teaching assembly and a simulation fault detection assembly. The theoretical training and physical training of the train set maintaining teaching training can be effectively realized by corresponding connection and coordination of all parts. Thetraining system is simple in structure, simple and convenient to set up, high in control accuracy, high in rationality of the teaching training method and good in systematicness, and simultaneously simulates physical training and theoretical training which are realized, the efficiency and quality of the train set maintaining teaching training are greatly improved, the cost of the train set maintaining teaching training is reduced, the technical capability of the train set attendant is improved, the timely discovery and accurate treatment of the train set operation faults are further ensured,the stable and efficient operation of the train set is achieved, and excellent application and popularization values are achieved.

The invention discloses a teaching experiment device and aims to provide a ballistic galvanometer measuring hysteresis loop of ferromagnetic medium method. First of all, test circuit loop is set, and a direct-current stabilized voltage supply exerts a current on a primary coil of a steel circular ring coil. Through the regulation of an on-off switch which is connected with a current distribution resistance, a secondary coil of the steel circular ring coil can induce different currents and reads corresponding electric values from the ballistic galvanometer, and therefore the hysteresis loop of the steel circular ring coil and magnetic field strength are respectively drawn and measured. The direct-current stabilized voltage supply exerts a current on a primary coil of a standard mutual inductor, a secondary coil of the standard mutual inductor produces induced electromotive force and reads corresponding electric values from the ballistic galvanometer, and an electric quantity constant and magnetic induction intensity of the steel circular ring coil can be obtained through calculation. Due to the fact that the direct current is adopted to measure hysteresis loop of static ferromagnetic medium, scope of knowledge of students is broadened, measuring results can be displayed by coordinate paper or a computer, and manipulative ability of the students is improved.

The invention discloses an automatic screenshot evidence obtaining method and system for massive webpages. The method includes the steps that 1, a task agent A sets the type of a URL of a webpage according to the type of a WEB type security event corresponding to the webpage and then sends the set URL to a screenshot server; 2, the screenshot server S stores URL information into a queue, calculates authentication fingerprints in communication interaction with the task agent A and feeds the authentication fingerprints back to the task agent A; 3, a browser plug-in P starts the webpage corresponding to the URL and sends a screenshot request to S; 4, the screenshot server S calls the screenshot process according to the screenshot request to complete screenshot operation, and screenshot evidence obtaining description information is generated; 5, the task agent A acquires the screenshot evidence obtaining description information of the webpage corresponding to the URL from the screenshot server S according to the authentication fingerprints of the URL. The automatic screenshot evidence obtaining method and system for massive webpages can be applied to various platforms and have high security and stability.

The invention discloses an airplane departure release sorting method based on dynamic simulation. The method comprises the steps of firstly, carrying out high-precision simulation of all airplanes close to release time in an airport, and predicting accurate time when the airplanes arrive at a runway entrance; and then, according to difference of expected runway entrance arrival time of the airplanes, considering meaningless waiting time of the airplanes at the runway entrance, acquiring a more optimized release sequence by changing a release sequence of the airplanes and allowing that later-applied airplanes can firstly release so that taxiing waiting time of the airplanes can be minimized, taxiing way occupation wastes and taxiing oil consumption are reduced and an utilization rate of anairfield runway is increased.

The invention provides a practical training centre for a sugar manufacturing process control technology. The practical training centre comprises a sugar refinery sugar manufacturing equipment model, a sugar refinery working condition simulation system, a sugar refinery production whole-process automatic control system and a central control room, wherein the sugar refinery sugar manufacturing equipment model is produced by scaling down according to the ratio of the appearance and the like of actual production equipment, arranged and connected according to an actual process flow, and further used as a field instrument installation carrier; the sugar refinery working condition simulation system is used for simulating the actual working condition of a sugar refinery; the sugar refinery production whole-process automatic control system is used for implementing automatic control on the whole process of sugar refinery production according to a working condition simulation signal and the signal of a field instrument in each production workshop; the central control room is used for carrying out centralized management and monitoring on the control system data of each working section of each workshop of the sugar refinery, and realizing remote production management and dispatching conduction. The high actual operational abilities of students can be trained through the training of the practical training centre, thus laying a solid foundation for working on the sugar industry or the related work in other automation fields in the future.

The invention relates to a training platform for robot teaching, including a profiled training table. The profiled training table is provided with an operation table enclosed by baffle plates. The profiled training table in the operation table is provided with a six-degree-of-freedom industrial robot, a writing unit, a geometric trajectory simulation unit, a piling assembly unit, a feeding unit and a welding simulation unit. The six-degree-of-freedom industrial robot is provided with tool clamps. The profiled training table is provided with a pneumatic control system, a solenoid valve and electrical control system at positions close to the operation table. The training platform can be used for writing, trajectory walking, feeding, transferring, piling, assembling, welding and other teaching functions. Each unit of the training platform is simple in structure and compact in layout, the execution component is few, the occupied space is small, and the functions are many. The clamps required by the six-degree-of-freedom industrial robot are installed on a tail end seat board, so that the tool replacing and installing unit is omitted, and the cost and the space are saved.

The invention provides a circuit toy building block. According to the circuit toy building block, circuit boards are mutually spliced through special connecting components so as to be combined to form a circuit toy building block of a circuit; and moreover, each connecting component is simple in structure and high in function; the connecting components are synchronously connected through a plurality of modes, including blocking connection between a convex platform and a containing groove, and magnetic connection of magnets, so that the compactness in connection of the blocks is greater than that of current building blocks; and moreover, the circuit toy building block also has a plurality of the additional capabilities and diversified novel output modes, the basic principles of circuits can be simulated, and the manipulative ability of children can be obviously improved, and the children can primarily learn the base circuit knowledge, so that the interest can be cultured.