38results about How to "Cultivate practical ability" patented technology

The invention discloses a medium voltage switchgear secondary control loop simulation practical training platform and a programmable logic controller logical judgment method thereof. The practical training platform comprises a base (1), a mounting plate (2), a programmable controller (6), a change-over switch, indicator lamps, connecting sheets, a power switch, relays, a relay protection unit anda terminal strip; the programmable controller (6) is adopted for replacing a high voltage vacuum circuit breaker, the medium voltage switchgear secondary control loop simulation practical training platform is economical and practical, and the logical judgment method is simple and reliable. By means of the practical training platform, map recognition, wiring, control principles, the relay protection action situation, the analog control operation, secondary loop trouble shooting and other practical operation practices of a medium voltage switchgear secondary control loop can be achieved for practical training or assessment. Through skill training of the practical training platform, understanding and grasping of students about secondary principles and wiring can be trained while professionaltechnical knowledge is deeply understood. By means of the medium voltage switchgear secondary control loop simulation practical training platform and the programmable logic controller logical judgmentmethod thereof, the problems of all middle and senior colleges or training institutions about secondary loop practical training, assessment and the like of medium voltage switchgears in a power system can be effectively solved.

The invention relates to a chemical virtual simulation experiment system based on Unity 3D, and a development method thereof. The system comprises a background management module, an experiment teaching module, an experiment operation module, a developer module, a search module and a comment module. The background management module is used for carrying out operations including user information management, role information management, experimental project management and comment management; the experiment teaching module provides an experiment teaching video and an experiment teaching cognitive material; the experiment operation module provides a virtual experiment environment and feeds back a corresponding experiment process and result according to virtual operation of a user; the developermodule is used for correspondingly setting the system by a developer or an administrator, and developing and uploading a simulation experiment project; the search module is used for the user to searchcorresponding experiments; and the comment module is used for collecting and publishing feedback comments of the user. Advantages of virtual simulation are fully utilized, experiment equipment is simulated virtually, abstract experiment operation is simulated, dangerous experiment objects are isolated, and safety of teachers and students is guaranteed.

Provided is a method for manufacturing a pig ear intravenous injection model based on mathematical modeling. The method comprises the steps that firstly, agentia is prepared, and the caudal vein is separated; then the prepared agentia is utilized for manufacturing a pig ear mold and an ear vein silicone rubber model, the ear vein silicone rubber model is embedded into an ear vein groove of the pig ear mold, and wrapped by a skin model, and the pig ear intravenous injection model can be manufactured. The method is simple, cost is low, the manufactured ear intravenous injection model is easy to store, complete and attractive in structure, clear and natural in form position, and capable of being used for repeated practice, the defect that live pig ear intravenous injection cannot be repeatedly operated is overcome, the problems that a beginner usually injects a pig repeatedly, and repeated ear intravenous injection cannot be carried out on a live pig are solved, the teacher teaching time is shortened, the learning interest of students is stimulated, and the teaching effect is improved.

The invention relates to a model generation method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the division of a target data set in response to a division operation for the target data set, and obtaining a plurality of sub-data sets and tag sets corresponding to the sub-data sets; and in response to a training operation for the data processing model, training the data processing model indicated by the training operation according to the sub-data set and the tag set indicated by the training operation to obtain a trained data processing model. According to the method of the invention, the learning effect of students on the artificial intelligence technology can be improved.

The invention discloses a mains complementary photovoltaic power generation practical training device, comprising a light source simulation unit, a solar photovoltaic power generation panel, a storage battery and an alternating current grid, wherein the light source simulation unit is connected with a light source simulation control unit by electrical output, and the solar photovoltaic power generation panel is arranged below the light source simulation unit; the solar photovoltaic power generation panel is connected with a photovoltaic power generation control unit by electrical output, and the photovoltaic power generation control unit is connected with the storage battery by electrical output; the photovoltaic power generation control unit is connected with a direct current electric energy detection unit by electrical output, and the direct current electric energy detection unit is connected with a grid-connected inverter unit by electrical output; the grid-connected inverter unit is connected with a photovoltaic power generation electric energy metering unit by electrical output, and the photovoltaic power generation electric energy metering unit is connected with a mains complementary control unit by electrical output; the mains complementary control unit is connected with a common load processing unit by electrical output, and is connected with a mains electric energy metering unit by electrical input.

The invention provides a multifunctional gear train comprehensive experiment device. The invention belongs to the technical field of educational teaching instruments. The device comprises a cabinet, alap joint platform, a part box, a lap joint gear train and a measurement and control device. The lap joint platform comprises a fixed bottom plate installed on the upper surface of the cabinet, and aleft input unit, a right input unit and an analog loading unit which are installed on the fixed bottom plate. The part box comprises two kinds of shafts and ten kinds of gears required by gear traindesign and assembly. According to the invention, the functions of gear train design, assembly, type conversion and transmission characteristic detection are integrated, four basic gear trains can be designed and assembled by utilizing the ten types of gears in the part box on the premise of keeping the basic structure unchanged, each basic gear train is freely switched among a planetary gear train, a differential gear train and an ordinary gear train by installing locking nails at different positions, and meanwhile, detection of the transmission ratio and the transmission efficiency can be conducted. The functions are complete, the structure is compact, interactivity is high, and multiple purposes are achieved on the same experiment platform.

The invention discloses a number sequence children's toy training aid and a use method thereof. The training aid comprises an operating plate, a first fixed disk and a second fixed disk are fixedly mounted at the top of the operating plate through screws, a connecting cylinder is fixedly mounted at the top of the first fixed disk, arrangement columns are arranged in the connecting cylinder, a limit component is fixedly mounted at the top of the second fixed disk, and a groove is formed in the top of the operating plate. The training aid has three number sequence operation schemes, playabilityof the training aid is enhanced, attention of children can be attracted, operation methods of the three number sequence operation schemes are different, and practical ability and divergent thinking ofthe children can be cultured. According to the training aid, the arrangement columns, circular carts and arrangement patches can be conveniently placed in a drawing frame, the drawing frame is placedin the operating plate, the drawing frame and the operating plate are fixed by the limit component, so that the training aid is conveniently stored, and loss is decreased.

The invention relates to an axial-flow-fan training model. For filling the void of the prior art and solving the technical problems, the axial-flow-fan training model comprises an axial-flow-fan control circuit, and the axial-flow-fan control circuit comprises a hydraulic-pump-station manual control analog circuit, a fan manual control analog circuit and an air-door manual control analog circuit.The axial-flow-fan training model is characterized by also comprising an air shaft model, an air flue box, a diffusion cylinder and a diffusion cylinder model, all the parts are sequentially communicated, an air door is arranged at the end, close to the air shaft model, of the air flue box, and the fan manual control analog circuit comprises a fan forward indicating circuit and a fan reverse indicating circuit; the air-door manual control analog circuit comprises an air-door opening indicating circuit and an air-door closing indicating circuit. According to the axial-flow-fan training model, operational experiences and hand feelings of workers are conveniently cultivated, and the axial-flow-fan training model is widely suitable for all coal mines.

The invention relates to a learning machine and a dynamic graphics context analytic method thereof, when the learning machine starts the test question searching module to call out the test questions, the answer text of which is displayed in multiplestep, and the displayed answer text is given with the comprehensive study to select the part test question answering text, then extract the key geometrical relation. The geometrical relation is decomposed into a plurality of original relation, meanwhile the object in the read DMS test question picture bank is read. The original object in the geometry relation and the object in the DMS test question picture bank are matched if the name is the same, if not, the corresponding original point in the DMS test question picture bank is found to construct the corresponding relation graph. The attribute and the method in the test question picture bank are modified, which realizes the text dynamic analysis of the geometry test. The invention makes the user to visual and easy to grasp a plurality of geometry knowledge.

The invention discloses a photovoltaic power generation teaching training system. The system is characterized by comprising a light source simulation tracking device, a light source simulation tracking control system, an energy conversion control storage system, an off-grid inverter load system and a monitoring system. The system has the advantages that: a solar cell panel automatically tracks sunlight together with a tracking system, and supplies the generated electrical energy to a direct current load and a storage cell for storage. An inverter inverts the electrical energy provided by the solar cell panel and the electrical energy stored by the storage cell into alternating current, and supplies the alternating current to an alternating current load. The monitoring system monitors the working process of a photovoltaic power generation system, and prints data report of each part. The system is applied to the new energy industry, adapts to the requirement of knowledge economy development, can show the characteristic of high-skill talent culture, focuses on culturing innovation awareness and practical ability, and is a platform for theory teaching and practice teaching of the new energy major of colleges.

The invention discloses a DNA right-hand double helix structure three-dimensional teaching instrument. The teaching instrument comprises a polydeoxynucleotide chain A model and a polydeoxynucleotide chain B model, wherein the polydeoxynucleotide chain A model is formed by the rightward spirally lifting assembling of deoxyribose A models and phosphate A models, and the polydeoxynucleotide chain B model is formed by the rightward spirally lifting assembling of deoxyribose B models and phosphate B models; the polydeoxynucleotide chain A model is connected with hydrogen bond A models which are perpendicular to the horizontal plane, and the polydeoxynucleotide chain B model is connected with hydrogen bond B models which are perpendicular to the horizontal plane; the deoxyribose A models and thedeoxyribose B models are connected through base pair models. The teaching instrument is a three-dimensional structure which is assembled by each model, and the DNA right-hand double helix spatial construction is vividly presented to help students to understand DNA right-hand double helix.