32results about How to "Make reasonable" patented technology

The invention relates to the technical field of data recommendation, in particular to a learning plan making method and device. The method comprises the steps: obtaining reference information for making a learning plan; judging whether the learner completes the learning plan according to a standard, if so, providing an entrance for the learner to perform autonomous learning, and if not or standards are not met after completion, closing the entrance for the learner to enter the autonomous learning; and judging whether the learner completes the learning plan according to the standard or not to determine whether to open or close the self-learning entrance. Therefore, a technical problem that students do not learn according to plans made by teachers and learn blindly by themselves is solved, and the technical effects that the teachers control learning items and learning effects of the students, and course plans of the teachers can be helped to be executed more smoothly are achieved. And the technical problem that the students answer the questions disorderly or do not learn the learning plan carefully is solved, so that the technical effect of improving the learning efficiency is achieved.

The invention discloses a method for distinguishing influences of emission changes and meteorological condition changes of different areas on PM2.5 concentration. The method comprises the following steps that WRF simulation meteorological data within preset time are collected; on the basis of the WRF simulated meteorological data and the partition mark information, calculating the air mass footprint through an LPDM model, and establishing a transmission matrix; calculating an inverse matrix of the transmission matrix, and calculating the regional emission according to the observation data within the predetermined time; verifying the accuracy of the regional emission by adopting inverted PM2.5 emission and simulated PM2.5 emission; calculating PM2.5 concentration matrixes at different moments by adopting the verified regional emission matrix and transmission matrix, and calculating the influence quantity of emission change on concentration change and the influence quantity of transmission change on concentration change. According to the method, the influences of emission changes and meteorological condition changes of different areas on PM2.5 concentration changes can be rapidly distinguished, and compared with other methods, the method is small in calculated amount, short in consumed time and good in simulation effect.

The invention belongs to the field of unmanned boats and discloses a Bi-RRT unmanned boat multi-boat navigation method and equipment that considers rotation angle constraints. This method uses global task allocation and considers each unmanned boat route connected by nodes based on the assigned task planning, performs collision judgment and coordinated collision avoidance on route nodes, and determines whether the unmanned boat reaches the corresponding target point through node release. Finally, Until all unmanned boats arrive at the target point. The entire process considers the large scene, multi-tasking and flexibility of the unmanned ship, so the route planning should ensure efficiency. In the route planning algorithm of Bi-RRT, which considers the rotation angle constraints, the rotation angle constraints at the end of the expansion node and the connecting node are considered to adapt to the situation. The movement constraints of the human boat, with heuristic expansion, make the expansion of the tree more greedy and clear, and more efficient.

The invention discloses a vertical-shaft wind turbine rotary spindle vibration restraining method which is high in wind energy capturing efficiency. The method includes: acquiring vertical inclination angle of a rotary spindle in real time; calculating vibration intensity of two orthogonal directions in a horizontal section of the rotary spindle and optimal rotation speed of a wind turbine generator under a maximum tracking target; determining expected rotation speed; allowing a rotating speed inner ring controller to drive the rotation speed to reach the expected rotation speed fast; and starting a reverse electric braking function of the rotating speed inner ring controller and a electromagnetic braking mechanism of the rotary spindle when vibration intensity of the spindle exceeds a preset safety regulating threshold; wherein fast rotating speed regulating of the rotating speed inner ring controller is achieved by motor acceleration through directly cutting of part of phase winding excitations or motor deceleration through releasing current chopping limits. By the method, current vibration intensity of the spindle can be calculated in real time, spindle vibration can be restrained, and the wind turbine generator is enabled to acquire the highest wind energy capturing efficiency as far as possible while mechanical stability is maintained.

The invention discloses an electromechanical coordination inhibiting method and an electromechanical coordination inhibiting device for chattering of a rotary spindle of a vertical axis wind machine. The method comprises the following steps of: obtaining a vertical inclined angle of the rotary spindle in real time; calculating chattering intensity of the rotary spindle in two orthorhombic directions in a horizontal section and the best rotary speed of a wind driven generator under a largest-power tracking target; according to the chattering intensity of the rotary spindle, analyzing an expected rotating speed of the wind driven generator; driving the rotating speed of the wind driven generator to rapidly achieve the expected rotating speed by a rotating speed inner ring controller; when the chattering intensity of the rotary spindle exceeds the pre-set biggest safe regulation and controlling threshold value, starting an inverse electric braking function of the rotating speed inner ring controller and an electromagnetic braking mechanism of the rotary spindle, so as to rapidly reduce the rotating speed of the wind driven generator. According to the invention, the current chatteringintensity of the spindle can be measured in real time and the chattering of the spindle can be inhibited, so that the mechanical stability of the wind machine is kept and the highest wind energy capturing efficiency can be obtained as far as possible.

The invention discloses a method for processing lucid ganoderma, which comprises the following steps: 1, picking up siraitia grosvenorii; 2, decocting siraitia grosvenorii; 3, leaching siraitia grosvenorii and concentrating extract; 4, drying extract of siraitia grosvenorii; 5, collecting fresh siraitia grosvenorii; 6, picking up siraitia grosvenorii; 7, steaming siraitia grosvenorii; 8, drying; 9, coarsely grinding; 10, low-temperature sterilizing; 11, drying; 12, finely grinding; 13, totally mixing; and 14, packing finished products. The lucid ganoderma processed by the method changes the original shape, mouthfeel and package of lucid ganoderma and can be taken and carried more conveniently; the quality of the processed lucid ganoderma is stable, the index is reasonable, the market potential is high, and great market economic benefic can be created; as lucid ganoderma is planted in a wild imitation mode, a greening and beautifying effect is created, the employment problem (from lucid ganoderma planting to processing to sale) of many people is solved, and the income of local peasants is increased.

A smart engine system and method that can automatically trigger smart home and smart life scenarios. The system includes data collection units, application object preferences, distributed flow computing platforms, instruction execution units, and message notification units.Methods include: A. The environmental factors, behavioral data, and physical condition data of the data collection unit collecting the application objects; B. processing data and forming an environmental scenario mode; C. Set or automatically generate personal preferences from the application object; D. Make environmental scenariosModel and personal preferences are calculated by weighted, formulated a personalized scenario mode and scenario trigger rules; E. Real -time data collected by the data collection unit to match the trigger rules of the application object;The rules corresponding to the sites and applied to the living environment of the application object.The present invention has the characteristics of unmanned intervention, rich in data sources, objective and authentic, and scientific and rigorous data processing and control methods.

The invention relates to a calculation and evaluation method of an insulating gas condensation temperature. The method mainly comprises the following steps: firstly, recording a pressure value and an environment temperature of an air chamber and testing to obtain a moisture content value in the air chamber of electric equipment; according to whether an adsorbent exists in the air chamber or not, substituting recorded and tested data into a corresponding condensation temperature calculation formula, so as to obtain a condensation temperature; and comparing the obtained condensation temperature with a lowest temperature of the environment of the electric equipment, thus obtaining a conclusion. Compared with the prior art, the calculation and evaluation method has the advantages that the existence condition of the adsorbent is considered, the obtained condensation temperature accords with an actual value, the formulation of an overhauling plan, caused by the fact that the humidity is too high, is relatively reasonable and the like.

The embodiment of the invention discloses a pavement performance prediction and maintenance method and device based on maintenance history correction. The method is based on road conditions, traffic volume data and maintenance history data of a route over the years, and adopts a modeling idea of "model grouping, year-by-year accumulation and elimination of maintenance history influences, data update dynamic correction" to finally obtain a pavement performance decay model that is based on untreated actual road condition data over the years and considers traffic volume cumulative axle-load influences. The model established by the method not only can be used to accurately predict the natural attenuation index of road conditions of a pavement in future years, but also can be used to assist incalculating preventive maintenance benefits and judging the best maintenance time in the aspects of pavement maintenance planning and decision-making, and meanwhile, when performing multi-year planning, more scientific and reasonable maintenance schemes and plans can be formulated based on accurately predicted road condition attenuation values, and the reasonable forecast of pavement maintenance funds can be achieved.

The invention provides a flexible laser welding method and device for skin-stringer, comprising: an off-line programming system obtains the seam track, the laser welding system obtains the gap data of the weld track, and the pre-weld scanning system establishes the gap width and welding seam The functional relationship of seam length; the central control system judges whether the assembly conditions meet the laser welding requirements; when the assembly conditions meet the laser welding requirements, the process planning system obtains relevant feature information, and obtains the spot welding process plan according to the relevant feature information and the model parameter database; According to the spot welding process plan, the laser welding system uses pulsed laser to perform spot welding in the welding area, and the molten pool monitoring system observes and records the whole spot welding process in real time. The present invention performs systematic and step-by-step welding on space-complex curve welds whose curvatures at different positions change from time to time, so as to reduce the sensitivity of process parameters, avoid defects such as incomplete penetration and weld leakage, improve the stability of the welding process, and improve the quality of welds the goal of.

The invention discloses an electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration. The electromechanical coordination suppression device comprises a two-shaft tilt angle sensor, a revolution speed sensor, an air velocity transducer, a wind driven generator, an electromagnetic rear axes brake mechanism, a revolving speed inner ring controller and an electromechanical coordination outer ring controller. The electromechanical coordination suppression device can measure and calculate current vibration intensity of a spindle in real time, suppresses vibration of the spindle, and enables a wind turbine to maintain mechanical stabilization and meanwhile obtain the highest wind energy capture efficiency as far as possible.

The invention discloses a large-scale electric automobile charge and discharge multi-target optimization method based on a sine cosine algorithm (SCA). According to the method, large-scale electric automobiles are grouped and classified by using a similar grouping method, and formulation of an electric automobile group charge and discharge strategy is performed by using the SCA so as to realize the objectives of power grid side peak shaving and minimum user side charge expense. Besides, the adopted sine cosine algorithm is a new intelligent algorithm and has the characteristics of faster rate of convergence and higher global convergence in comparison with the classic genetic algorithm (GA) and particle swarm optimization (PSO) and the like so that formulation of the electric automobile charge and discharge plan is enabled to be more reasonable.