54results about How to "Easy to learn and understand" patented technology

The embodiment of the invention provides a high-availability cluster system, a master node and a slave node. The master node comprises a master resource allocation layer, a master information layer and a master resource agent layer; and the slave node comprises a slave resource allocation layer, a slave information layer and a slave resource agent layer. The master node and the slave node are respectively divided into three layers; one layer is used for information interaction, one layer is used for allocation management of cluster resources, and one layer is used for start and stop of the cluster resources. As the working mechanism of the master node and the slave node is simplified, more convenience is brought to the management of the master node and the slave node as well as the understanding and learning of the working principle therein. No matter the master node or the slave node is in failure, a person can know which layer of the node is in failure rapidly based on failure performances of the node and can further perform failure checking just for the layer, so that the failure checking range is shortened, and convenience is brought to fault inquiry.

The invention relates to a rectangle cover full-automatic press-fit hydraulic machine which is characterized in that a workpiece locating air cylinder arranged on a bottom plate is included, the end portion of a piston rod of the workpiece locating air cylinder is provided with a workpiece locating block, a material channel and a material box are arranged in front of and behind the workpiece locating block, a rectangle cover press-fit mechanism and a rectangle cover feeding mechanism are symmetrically arranged on the left and the right of the workpiece locating block, the rectangle cover press-fit mechanism comprises an oil cylinder and a straight line bearing which is tightly matched with a rectangle cover pressing mould, guiding rods are arranged on two sides of the rectangle cover pressing mould and are connected with the rectangle cover pressing mould through connecting plates and sliding sleeves, the connecting plates are connected with an oil cylinder piston rod, the rectangle cover feeding mechanism comprises an optical shaft arranged on an adjustable bottom plate, a rectangle cover bunch rod is hung on a bunch rod adjusting block arranged on the top of the optical shaft, a rectangle cover air cylinder is arranged on one side of the adjustable bottom plate, the rectangle cover material channel is arranged on the other side of the adjustable bottom plate, and the rectangle cover material channel is aligned to the rectangle cover pressing mould. According to the rectangle cover full-automatic press-fit hydraulic machine, reliable locating pressing fitting can be achieved, press-fit quality is stable, and rectangle cover deforming is not easy.

The invention relates to a rotary magnetic solid geometry figure demonstration device. The rotary magnetic solid geometry figure demonstration device comprises a bottom plate, a supporting device, a pedal device, a fixing plate and a demonstration device body, wherein the upper end of the bottom plate is symmetrically provided with universal wheels, the middle of the upper end of the bottom plateis provided with the supporting device, the right side of the upper portion of the bottom plate is provided with the pedal device, the pedal device cooperates with the middle of the supporting device,the upper end of the supporting device is provided with the fixing plate, and the upper end of the fixing plate is provided with the demonstration device body. The rotary magnetic solid geometry figure demonstration device has the advantages that the problem is solved that when existing teachers perform solid figure teaching on middle school students, the teachers are usually only able to teach conceptual knowledge, however, due to the limited spatial imagination abilities of the students, it is difficult for the students to understand conceptual figures expressed by the teachers and to imagine the complete figures, the function of demonstrating different solid geometry figures can be achieved, the specific demonstration effect is good, the use and operation are simple and convenient, theinterestingness of attending class is increased, and learning and understanding of the students are facilitated.

The invention discloses an oil and gas pipeline defect detecting and monitoring experimental platform. The oil and gas pipeline defect detecting and monitoring experimental platform comprises an oil and gas pipeline detecting experimental platform, wherein a three-layer pipeline support mechanism is arranged on the pipeline detecting experimental platform, the three-layer pipeline support mechanism is provided with a first pipeline layer, a second pipeline layer and a third pipeline layer in the sequence from bottom to top, an L-shaped pipeline layer is arranged on the edge of the three-layer pipeline support mechanism, soil covers the first pipeline layer and the L-shaped pipeline layer, and the air inlet ends of the first pipeline layer, the second pipeline layer, the third pipeline layer and the L-shaped pipeline layer communicate with an air outlet of an air compressor. The oil and gas pipeline defect detecting and monitoring experimental platform has the beneficial effects that the oil and gas pipeline detecting experimental platform is small in floor area, compact in structure and easy for teaching, the pipeline simulation detection precision is high, the reliability is good, thus a foundation is provided for the monitoring and detecting of the real pipeline leakage, and the training on special pipeline detecting personnel and the experiment teaching for students by schools are facilitated.

The invention belongs to the multi-legged robot technology field and especially relates to a hydraulically-driving hexapod robot control system. Most of the current hexapod robot controller systems have low reliability and stability. Aiming at the above problem, the following scheme is proposed. A vehicle frame and a control system are included. Left and right sides of the vehicle frame are provided with running mechanisms, the control system is arranged on an inner wall of the vehicle frame, and the control system comprises a handle control module, a main control module, a hydraulic cylindercontrol module, a hydraulic cylinder module, a displacement sensor module and a power supply module. The power supply module is connected to a power supply end of the main control module, and a signaloutput end of the handle control module is connected to a first signal input end of the main control module. The system has a simple structure, usage is wide, an open source code is achieved, development cost is low and learning and understanding are easy. The main controller has multiple expandable interfaces, which is convenient for real-time hardware extension. And there are various software functions.

The invention provides a VR (Virtual Reality) logistics simulation system for teaching. The system comprises an information flow and synchronization module, a forklift simulation driving module, a logistics system role conversion module, a scene roaming familiar module, an overall process guide module, an error information prompt and statistics module and a grading system judgment module. The system is mainly used for simulating a set of process of the logistics system, including flow of logistics information in the logistics system flow, steps, operation and process of out-put and in-put of warehouse, information distribution of logistics goods, the goods circulation process and to-be-delivered places. The provided teaching mode is provided with a whole set of process for prompting and guiding, thereby facilitating users to learn and understand, and the error information prompt module returns to an error step and is used for tracking logistics goods information. The limitation of a grading rule standard is achieved, thereby facilitating the users to learn. Through the steps of performing an assessment test on the users in combination with an assessment mode, customizing the numberof the goods and the like, the users can better conduct learning and mastering.

The invention discloses a demonstration device for physics education teaching and relates to the technical field of physics teaching tools. The demonstration device comprises a demonstration box, wherein a straight plate I is fixed on one side of the upper part of the demonstration box; a radar speed tester is fixed in a position right aligned to the straight plate I on the other side of the demonstration box; a spring I is fixed on a side surface close to the part above the straight plate I, of the demonstration box; a baffle plate I is fixed at the tail end of the spring I; a pull rack is fixed on one side close to the spring I, of the baffle plate I; a fixing block is arranged on one side surface below the straight plate I, of the demonstration box; a transverse rod is fixed on the fixing block; a straight plate II is rotationally connected with the fixing block; a support rod is rotationally connected with the bottom surface of the straight plate II; the support rod is fixed with the transverse rod through a fixing clamp. By adopting the demonstration device, horizontal projectile motion and oblique projectile motion in physics teaching are very well demonstrated, students canunderstand and learn the principles conveniently, and in addition, the whole device is convenient to move, diverse in function and very applicable to physics education teaching demonstration.

The invention discloses a teaching type outer circle and plane dual-purpose grinding machine tool which comprises a bottom frame. A Y-axis moving part is arranged in the bottom frame; a worktable supporting plate is arranged on the bottom frame; an X-axis moving assembly is arranged on the worktable supporting plate; the worktable supporting plate is provided with a worktable; a fixed frame, a shaft-type workpiece supporting piece, a three-jaw chuck, a flat plate type workpiece supporting piece and a moving center are arranged on the worktable; the teaching type outer circle and plane dual-purpose grinding machine tool further comprises a grinding machine supporting plate; a Z-axis moving assembly is arranged on the grinding machine supporting plate; a grinding supporting plate is arrangedon the Z-axis moving assembly; and a grinding wheel is arranged on the grinding supporting plate. The dual-purpose grinding machine tool integrates an outer circle machine tool and a plane machine tool into a whole, and is small in size, convenient to carry and suitable for demonstration equipment in teaching; teaching of teachers is facilitated, the teaching effect is improved, and the study enthusiasm of students can be also improved; and the students can observe the operation situation of the equipment more visually, it is beneficial for the students to learn about the operation principle,and accordingly the practical ability is also improved.

The invention discloses a 3d real-time reconstruction device, comprising an induction mechanism which comprises a first screen and a second screen which are arranged oppositely, wherein one side of the first screen orientating to the second screen is provided with an induction device, the induction device performs inductive detection on the space between the first screen and the second screen, and the second screen is provided with a plurality of segmentation points uniformly distributed; a simulation mechanism comprising a third screen, wherein the third screen is provided with a plurality of simulation moving points consistent with the segmentation points on the second screen; and an electric control mechanism which collects induction signals of the induction mechanism and drives the stimulation mechanism to perform simulation. In an original state, the space between the first screen and the second screen detected by the induction device is an initial value; when a visitor places an object between the first screen and the second screen or performs specific motions, the induction device detects the space change between the first screen and covered segmentation points, and the electric control mechanism collects exchange data of corresponding segmentation points, and drives the corresponding simulation moving points in the simulation mechanism to move so as to stimulate object profiles or specific motions.

The invention discloses a selective breeding method of white peaches. The method includes the steps of S1, culturing seedlings; S2, planting the seedlings; S3, performing management after seedling planting; S4, pruning; S5, performing soil and fertilizer management; S6, performing water management; S7, performing disease and pest management; S8, performing flower and fruit management, to be more specific, reasonably thinning flowers and fruits. The method has the advantages that the method specifically includes initial white peach seed selection, cultivation time selection, seedling planting,pruning, water management, soil and fertilizer management, disease and pest management, flower and fruit management and the like, the planting process is easy in standardization and management, fast white peach growth is achieved, the seedlings cultivated by the method are high in planting survival rate, the picked fruits are good in taste and quality, high white peach yield is achieved, the method is suitable for large-scale production, green-hand fruit farmers can extremely conveniently learn about the white peach planting method, the economic benefits of white peach planting are increased effectively, and the method is suitable for being popularized and used.

The invention discloses a display rack convenient for displaying an engineering cost budgetary result, and solves the problem that the existing engineering budget presentation cannot timely reflect and explain new budget situations occurring in the actual construction process. The display rack convenient for displaying the engineering cost budgetary result comprises a folding frame, a curtain mounted on the folding frame, a projector used for projecting on the curtain, a camera which is connected with the protector through an AV(Audio/Video) line, and a display stand used for displaying information of the engineering cost budgetary result; the display stand comprises a display area and a storage area; the display area comprises a touch display device arranged on one side of display area and a handwriting board arranged on the other side of the display area; the storage area comprises a bracket used for mounting the camera, a fixing station used for fixing the projector, and a pen box used for placing handwriting pens for the handwriting board. The display rack convenient for displaying the engineering cost budgetary result disclosed by the invention has the advantages of being convenient in explanation, simple in structure, convenient to operate and the like.

The invention discloses an electrician teaching appliance which is characterized by comprising a touch screen displayer and a multimedia teaching tool, wherein the multimedia teaching tool comprises a projector, a display screen, a computer and a loudspeaker box, the touch screen displayer is in wireless communication with the computer of the multimedia teaching tool, and the touch screen displayer comprises a capacitance input module, a power source start module and a computer data synchronous control module. The electrician teaching appliance avoids the defect that only the multimedia teaching tool is used in multimedia teaching process, in the teaching process of complex circuits, due to the fact that some complex circuits need to be operated to be clearly displayed, by means of the electrician teaching appliance, operation of the circuit can be carried out on the touch screen displayer, a teacher can conveniently carry out teaching demonstration, and study of students is facilitated.

The invention belongs to the technical field of network search, and particularly relates to a method and device for searching elementary mathematics handwritten formulas. A search website background is connected with a database containing all mathematical formulas in an elementary mathematics stage, and a user writes the content to be searched on a writing board, wherein the content is all names of a formula, a specific equation of the formula, one or more characters in the name of the formula, and any item in a section of formula in the equation of the formula, the writing content is captured by the writing board, the picture is transmitted to the computer, and then the picture is segmented by a digital image processing technology, finally, the segmented content is extracted and converted into character data, the data is subjected to fuzzy query in a database to find out all mathematical formulas corresponding to the character data, the content needing to be searched can be found more clearly through fuzzy query, and the tablet personal computer is used as the writing board to write the content needing to be searched more conveniently compared with a traditional keyboard for typewriting.

The invention provides a cell mitosis dynamic simulation assembly, relates to the technical field of biological teaching equipment, and solves the technical problem that a teaching tool in the prior art influences a teaching effect due to the fact that a mitosis simulation process is not comprehensive enough and cannot be dynamically displayed. The assembly comprises a control device, a transmission device, a cell membrane assembly, a spindle body assembly and a dyeing monomer assembly, the cell membrane assembly comprises two arc-shaped pieces which are oppositely arranged and are in sliding fit, and part of sections of the two arc-shaped pieces are overlapped to form a circular mother cell membrane assembly in a surrounding mode; the spindle body assembly and the dyeing monomer assembly are both arranged in the circular maternal cell membrane assembly, the transmission device is in transmission connection with the spindle body assembly, and the spindle body assembly can abut against the corresponding arc-shaped piece and push the arc-shaped piece to slide; the two arc-shaped pieces can be separated from each other and form two independent sub-cell membrane assemblies; the simulation process is comprehensive, and dynamic display can be realized.

The invention discloses an English vocabulary comparison demonstration device. The English vocabulary comparison demonstration device comprises a plastic strip block, a strip-shaped hole, a poking wheel, a bearing, a traction block, a connection groove, a fountain pen writing thin plate, a rectangular groove, a first cover strip plate, a second cover strip plate, a convex glass strip plate, a strip-shaped sliding groove, a long column cavity, a shaft rod, a sliding block, a square hole, wiping cloth and a connection block. According to the invention, a function of operating and spelling two comparative English words is realized; the difference between two similar and same words can be learned and found out conveniently in the operation demonstration; meanwhile, the operational ability of learners is improved; two corresponding cover strip plates which are connected with the plastic strip block in a sliding manner are pushed backwards to move, the effect of shielding corresponding unused parts is achieved, disorder caused by the fact that other shifting wheels with letters are driven to rotate due to misoperation is avoided, spelled words can be partially exposed, learners can writedown corresponding translated words conveniently, meanwhile, the translated words can be wiped off, and follow-up use is facilitated.