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

A general intelligent management platform applied to electrical specialty group experiment teaching comprises an experiment platform group formed by a plurality of experiment platforms, experiment intelligent management modules in one-to-one correspondence with a plurality of student experiment terminals, a teaching server in communication connection with the experiment intelligent management modules, and a teacher management machine in communication connection with the teaching server through a wired network. The problems of single function, isolated communication, backward management, poor data sharing and multiple use limiting conditions and the like of an existing experiment platform are solved; and the general intelligent management platform has a plurality of modes of information transmission capabilities and has the advantages of rich functions, superior overall performance, being capable of carrying out on-line management, remote monitoring and data sharing and the like.

The invention discloses a power transmission line UAV (unmanned aerial vehicle) inspection simulation training method. The simulation training method comprises the following steps: 1) data acquisition; 2) 3D model building; 3) barrier setting; 4) typical fault setting; and 5) wind and rain resistant flight setting. Compared with the prior art, the method has the advantages that by combining virtuality with reality, a 3D model is built in the simulation training process, thus maximally restoring the reality; and the control capacities of drivers can be trained in an omnibearing and multi-angle manner by setting typical faults, barriers and wind and rain resistant flights in the simulation training process.

The invention relates to a medical model, in particular to an artificial sputum suction model. The model comprises a simulation trachea and a simulation lung, wherein the simulation lung comprises two hollow air bags; the simulation trachea is an inversed 'Y'-shaped plastic threaded pipe; the two hollow air bags serving as the simulation lung are connected to the lower end of the inversed 'Y'-shaped plastic threaded pipe respectively; the plastic threaded pipe is communicated with inner cavities of the hollow air bags; end parts of the plastic threaded pipe communicated to the inner cavities of the hollow air bags are connected with polycystic rubber balls serving as pulmonary alveoli respectively; and the polycystic rubber balls are arranged in the two air bags respectively. The artificial sputum suction model has better simulation effect, higher practicability and novelty.

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 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 high-speed rail sand table train control system. The high-speed rail sand table train control system comprises a simulated track and a simulated train. The simulated track comprises two or more track sections, control devices arranged in the track sections and ground signal machines; the control devices have the same structures, each control device comprises a frequency-shift signal transmitter and a frequency-shift signal receiver which are arranged at the two ends of each track section respectively, an input end of the frequency-shift receiver is connected with the simulated track through a transmission line, an output end of the frequency-shift receiver is connected with the frequency-shift signal transmitter of a latter track section through another transmission line, and a controlling end is connected with the ground signal machine in the same track section; the simulated train comprises an inductance coil, a small-signal amplifying circuit, a frequency-shift demodulator, a train signal machine and a train traction system. According to the high-speed rail sand table train control system, the frequency-shift transmitter is adopted to send information to a rail surface, the frequency-shift receiver is used for demodulating the information and controlling the ground signal machines, the simulated train can receive frequency-shift information from the rail surface and control the train signal machine lighting and the running speed of the train, therefore, the real simulation of a railway site is achieved.

The invention relates to an electrostatic force and Ampere force driven power machine manufacturing and demonstrating method. The method is characterized in that an electrode plate, a rotating plate, a plastic turntable rotating shaft, a plastic turntable, a charge exchange brush, a permanent magnet and a high-voltage electrostatic power supply are mainly used; in an emphasized way, the electrode plate is a cylindrical surface metal conductor plate; the rotating plate is a nonferromagnetic metal conductor flat plate; the continuous electrostatic force driving is realized; and the current formed during the rotating plate and electrode plate charge exchange is converted into the Ampere force driving. The demonstration of several conditions including the position, relative to the circumference, of the electrode plate and the position, relative to the electrode plate, of the charge exchange brush is also realized; and through the experimental design, the cultivation on innovative spirit and practical ability of students is favorably promoted. The manufacturing is very simple and easy; the effect is obvious; more education functions are added in the teaching process; and the operation is significant work with development prospects.

The invention discloses a vocational qualification examination subject integration sand table simulation training system for registration safety engineers. The system comprises an examination subjectintegration training system used for integrating examination contents of a plurality of subjects, a sand table deduction teaching system used for simulating first-person on-site actual management anddisposal, and an operating system used for retrieving knowledge points matched with the examination subject integration training system. The examination subject integration training system comprises an examination outline module, a first database module with laws, regulations, regulations and files, a second database module with national standard landmarks and row marks, a safety production management knowledge database module, a safety production technology database module and a professional knowledge module. The sand table deduction teaching system comprises a sand table model base and a production safety related event deduction module. The operating system comprises a fusion hitching system, a database, a user operation interface and a 3D and VR technology module. The defects in the prior art can be overcome.

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 an on-way resistance virtual simulation experiment system and method, and the system comprises an on-way resistance virtual simulation experiment model which is used for the three-dimensional simulation of an on-way resistance experiment device; wherein the on-way resistance virtual simulation experiment model simulates water through a water body simulation module, and thewater body simulation module comprises a water flow simulation sub-module, a water surface simulation sub-module and a bubble simulation sub-module; an operation interface which is used for controlling and visually displaying the on-way resistance virtual simulation experiment model and carrying out an on-way resistance virtual simulation experiment; and an auxiliary teaching platform which comprises a student control module, a teacher control module and an administrator control module. Compared with the prior art, the system has the advantages that experiment teaching time and space are extended, experiment teaching mode reform and innovation are promoted, student innovation ability cultivation is promoted, the simulation effect is vivid, teaching functions are reasonable and complete, operation interface display is smooth, user friendliness is high, and teaching requirements are met.

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 provides a photovoltaic power generation demonstration and experiment system. A photovoltaic module is connected with a micro inverter set. The micro inverter set is connected with an ammeter distribution module. The ammeter distribution module is joined in a public supply network. In a circuit direction from the ammeter distribution module to the public supply network, two ways are separated from an output end of the ammeter distribution module and are connected with a load fluorescent lamp and a data collection controller respectively. The data collection controller is connected with an input end of a router, and another input end of the router is connected with an Internet. Two ways are separated from the router and are connected with a monitor computer and a short-range display device respectively. The monitor computer is sequentially connected with a direct current electronic load, a controller, a fourth breaker and a second monocrystalline silicon photovoltaic assembly. A storage battery set has two ways which are connected with the controller and an input end of an off grid inverter respectively, and an output end of the off grid inverter is connected with an input end of an alternating current electronic load. The photovoltaic power generation demonstration and experiment system provided by the invention achieves three functions of photovoltaic conversion, alternating current generation and grid connection of a photovoltaic assembly.

The invention discloses a method for realizing remote manipulation and control experiment equipment combined with virtual reality. The invention needs to use laboratory equipment, a main server, a cloud database and a data computing server. The master server is used for calling and distributing instructions; cloud databases store a lot of data, including equipment laboratories in colleges and universities, laboratory equipment models, IP, and so on. The data computing server is used for the processing of large volumes of data required by the primary server. The invention solves the problems oflow utilization rate of the existing experimental equipment and unshared resources, solves the problem that the infrastructure of a factory or an enterprise cannot satisfy the practical training teaching, and provides a complete teaching and training system for the factory and the enterprise; the invention also solves the problems of low utilization rate of the existing experimental equipment andunshared resources. Integration of the existing scattered experimental equipment resources to improve the utilization of experimental equipment in the form of sharing, saving factories and enterprises' expenses.

The invention relates to a hierarchical analog circuit experimental box. A power supply module, an instrument module, a direct-current power circuit module, an integrated power amplifier circuit, a discrete power amplifier circuit, a silicon controlled circuit module, a differential amplification circuit module, an integrated operational amplification circuit module, a discrete component amplification circuit module, a field-effect tube circuit module, an expanded experimental area, a discrete component inserting area and a power line and lead placing area are arranged in the experimental box;the input ends of the output ends of all the above circuits are led to an PCB panel through a PCB circuit to form rapid pluggable ports; the input port is connected with the output port of a signal generator through the lead; the output port is connected with a measuring instrument and a loudspeaker through the leads to perform measurement or send out alarm sound; transmission of an intermediatesignal is connected through the lead; and the experimental box provided by the invention has stable performance and high flexibility, can meet the basic manipulative ability exercise of most of students and can provide the opportunity of comprehensive circuit design for more excellent students.

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 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 present invention provides a device and method for demonstration of controlling motor rotation speed, belonging to the physics teaching experiment apparatus field. The device mainly comprises: a rotor, a magnet, a rotor support ring, a power supply, a current-limiting resistor, a switch, a color paper, a scale, an insulation plastic plate, an elastic scale and a fixed pulley. The rotor shaft of the rotor passes through the rotor support ring, the rotor support ring is fixed on a straight bar perpendicular to and fixed on the insulation plastic plate, the rotor is the rotor of a direct current motor, the rotor shaft is in contact with a brush on the insulation plastic plate, the scale being perpendicular to the rotor and fixed on the insulation plastic plate; one end of soft string incapable of expansion is fixed on the rotor shaft, the other end of the soft string is connected with the hook of the elastic scale through the fixed pulley, and the elastic scale and the scale are fixed in parallel on the insulation plastic plate. The device and method for demonstration of controlling the motor rotation speed have active meanings for understanding content including Ampere force, magnetic moment and the like, avoid the phenomenon that resistance changing is easy to cause bad switch contact because of speed regulation of a motor in prior art, the manufacturing is very simple and the effect is obvious.

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.

An ampere force and electrostatic force driving power machine experimental instrument is mainly composed of an electrode plate, a rotating plate, a plastic turntable rotating shaft, a plastic turntable, a charge exchange brush, a permanent magnet and a high-voltage electrostatic power supply, and lays emphasis on the technologies of realizing the continuous electrostatic force driving via the electrode plate which is a cylindrical metal conductor plate and the rotating plate which is a nonferromagnetic metal conductor flat plate, and converting a current formed at the charge exchange of the rotating plate and the electrode plate into the ampere force driving. The experimental design facilitates promoting the cultivation of the innovation spirit and practical ability of the students better. The experimental instrument is very simple and easy to manufacture, is obvious in effect, adds more education functions in the teaching, and is a piece of work having great significance and development prospect.

A dynamic cross-section demonstration device and a method of a cylinder are disclosed. The device is mainly formed by a cylindrical drum, a kerosene layer and a horizontal desktop. The device is characterized in that a side wall of the cylindrical drum and two base plates are transparent organic materials; a space formed by an inner side of the cylindrical drum is ensured to be a cylinder; a halfof space in the cylindrical drum is filled with water and a proper amount of kerosene and then sealing is performed; the kerosene layer is formed through adding red dye in the proper amount of kerosene, and then the kerosene layer is formed on a water surface of a water area, and the cylindrical drum is placed on the horizontal desktop; and the kerosene layer is taken as a cross section, and the cylindrical space formed by the inner side of the cylindrical drum is taken as the cylinder to be sectioned. A cross section, an inclined cross section and a shaft cross section can be demonstrated, amaking process is simple and an effect is obvious. And a lot of education functions can be increased in classroom teaching.

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 present invention relates to a monitoring block for real-time integrity evaluation during the operation of a power plant hydraulic actuator, which can monitor the operation state of a hydraulic actuator in real time during the operation of the hydraulic actuator to ensure the integrity of the hydraulic actuator. To this end, the monitoring block for real-time integrity evaluation during the operation of a power plant hydraulic actuator comprises at least one among: a drive monitoring block which connects the hydraulic actuator with a driving valve for adjusting a working oil for the operation of the hydraulic actuator and forms a path through which the working oil is transferred between the hydraulic actuator and the driving valve; an opening and closing monitoring block which connectsthe hydraulic actuator with an opening and closing valve for determining whether the working oil is supplied to the hydraulic actuator and forms a path through which the working oil is transferred between the hydraulic actuator and the opening and closing valve; and an emergency monitoring block which connects the hydraulic actuator with an emergency stop valve adjusting the working oil in orderto control the operation of the hydraulic actuator and forms a path through which the working oil is transferred between the hydraulic actuator and the emergency stop valve.

The invention provides a helicopter rescue teaching instrument. The instrument comprises a fixing frame and a simulated helicopter cabin which is rotatably connected to the fixing frame through a plurality of hanging rods. The cabin comprises a cabin body, a supporting mechanism, a swing mechanism and a hoisting mechanism. Connecting points connected with the hanging rods are arranged in the circumferential direction of the supporting mechanism. The slewing mechanism is arranged above the supporting mechanism; the cabin body is connected below the supporting mechanism; the hoisting mechanism is arranged in the cabin body; a lifting appliance capable of extending out of the cabin body is arranged at the tail end of the cabin body, the motion process of a helicopter in the rescue process issimulated by changing the spatial position of the simulated helicopter cabin relative to the fixing frame, the steering motion of the helicopter in the horizontal plane is simulated by operating the swing mechanism, and a rescue winch system of the helicopter is simulated by operating the hoisting mechanism. The instrument is compact in structure and convenient to carry, helicopter movement and various rescue modes can be directly demonstrated in class, the training cost is saved, and the risk of safety accidents of students in the actual training process is reduced.

The invention provides a Dougong teaching model and an architecture teaching model and belongs to the field of teaching appliances. The Dougong teaching model comprises a base, a first strip-shaped block, a second strip-shaped block, multiple supporting blocks, four third strip-shaped blocks, three fourth strip-shaped blocks, a fifth strip-shaped block, a sixth strip-shaped block and a seventh strip-shaped block. The Dougong teaching model is formed by assembling multiple components, space thinking, architecture structure thinking and practice ability of architectural college students can be cultivated effectively in the process of disassembling and assembling, and powerful practice operation experience and classical case support are provided for conducting architecture teaching of architectural colleges. In addition, the architecture teaching model is elegant in appearance and compact in structure after splicing is completed, and especially, Dougong serving as a classical element of Chinese traditional architecture has great ornamental value.

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.