275results about How to "Good inheritance" patented technology

The invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with theThe invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with the speed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two drivinspeed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two driving motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is conng motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is connected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem oected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem of skidding, a skidproof differential device is also arranged in the speed reducer.f skidding, a skidproof differential device is also arranged in the speed reducer.

The invention discloses a novel temperature control moxibustion device which comprises a cylindrical moxibustion box and a box cover, wherein a moxibustion hole is formed in the bottom of the moxibustion box, and a detachable dust stop screen is arranged on the moxibustion hole. The temperature control moxibustion device further comprises a support frame and a temperature sensor, the support frame is fixed in the moxibustion box, and the temperature sensor is fixed on the bottom surface of the moxibustion box; a screw rod perpendicular to the bottom surface of the moxibustion box is arranged at the lower part of the support frame, a nut seat is in bolted connection with the screw rod, and a fixing ring corresponding to the moxibustion hole is fixed on one side of the nut seat and used for inserting moxa sticks; and the screw rod is driven by a reducing motor fixed on the support frame to rotate. According to the novel temperature control moxibustion device, the therapeutic temperature is regulated by controlling a distance between a moxa stick fire point and a moxibustion acupuncture point, the constant temperature of the moxibustion acupuncture point of a human body is maintained, and the whole device is portable and flexible, so that the temperature of the moxibustion acupuncture point of the human body can be accurately controlled, and an optimal curative effect is achieved.

The invention relates to a modeling and graphical displaying method for a causal relationship reasoning model of unusual working conditions of a chemical process. The method mainly solves the problems that in the prior art, the root causes of the unusual working conditions are not judged accurately and a graphical displaying effect is poor. According to the modeling and graphical displaying method for the causal relationship reasoning model of the unusual working conditions of the chemical process, real-time data of a control system are collected, an expert rule model which is closely related to the judging process of the unusual working conditions is established, a fault tree logical reasoning model for root cause analysis of the unusual working conditions is established according to a root cause analysis mode of the unusual working conditions, an intelligent computing method is adopted, through the fact that threshold value judgment and feature extraction are carried out on key safety technical parameters, feature matching is carried out on the established expert rule model and the established fault tree analysis model, intelligent monitoring and early warning on the unusual working conditions of a production process and root cause analysis are achieved, the problems are solved better through the technical solutions, and the method can be applied to treatment of the unusual working conditions of the chemical process.

An embroidery technology includes selecting cloth, producing a template, producing an embroidery needle, rubbing patterns or characters on cloth, clamping and fixing the cloth on an outer tambour and an inner tambour, selecting embroidery threads to embroider on the cloth and repeating the step, taking down the cloth after an embroidery product is finished, cutting exposed embroidery thread rings in the front of the cloth neatly, brushing embroidery thread ends into flurry shapes through a brush to obtain the embroidery product high in stereoscopic impression and beautiful in colors.

The invention belongs to the technical field of detecting of traditional Chinese medicine, and provides a method and system for recognizing the traditional Chinese medicine. The method includes a microscopic image acquisition step, a microscopic characteristic image acquisition step and a traditional Chinese medicine variety determining step, wherein according to the microscopic image acquisition step, the microscopic image of traditional Chinese medicine to be recognized is acquired; according to the microscopic characteristic image acquisition step, de-noising processing and image dividing processing are performed on the microscopic image, and the microscopic characteristic image of the traditional Chinese medicine to be recognized is acquired; according to the traditional Chinese medicine variety determining step, the microscopic characteristic image is searched and matched in a preset traditional Chinese medicine microscopic characteristic image base, and varieties of the traditional Chinese medicine to be recognized are determined according to the searching and matching result. Thus, the method and system for recognizing the traditional Chinese medicine achieve recognizing of the varieties of the traditional Chinese medicine on the basis of the microscopic characteristics of the traditional Chinese medicine, and accuracy and efficiency of recognition of the traditional Chinese medicine are improved.

The invention discloses a feedback method of downlink channel information based on a multi-codebook, wherein a four-antenna basic codebook, an extended codebook and at least an optimized codebook capable of improving the accuracy degree for a code to reflect the downlink channel information are arranged. In the method, UE (User Equipment) selects corresponding code words from the four-antenna codebook which is a basic codebook, the extended codebook and the optimized codebook according to current downlink channel information and feeds back the serial numbers of the selected code words in the codebook per se to a base station; and the base station searches for corresponding code words from the more than two code work serial numbers sent by the UE and works out corresponding code words according to the code words, wherein the code words represent the current downlink channel information. The invention simultaneously discloses a device for realizing the method. The invention can ensure that the base station acquires the downlink channel information with high precision at low cost, thereby effectively optimizing the transmission quality of downlink signals and improving the transmission efficiency of the downlink channel.

The invention discloses a multi-dimensional Gaussian cloud model-based rock burst grade evaluation method. The method comprises the following steps of: firstly constructing a rock burst intensity grade evaluation index system, dividing the rock burst into a plurality of grades and determining a grading standard; solving Gaussian cloud digital features of rock burst grades corresponding to indexes and establishing a multi-dimensional Gaussian cloud model; widely collecting a plurality of groups of significant deep engineering rock burst examples to establish a rich training sample library, and solving entropy weights of indexes in an evaluation index set by adoption of an entropy weight method and a programming technology; substituting measured values of the evaluation indexes into the multi-dimensional Gaussian cloud model, and combining corresponding weight calculation to obtain a comprehensive certainty degree attached to the rock burst grades; and finally determining an engineering rock burst intensity grade according to a maximum certainty degree principle. According to the method, the rock burst grades can be comprehensively, objectively and correctly evaluated, and the evaluation result is objective; and a brand new method is provided for the grading prediction of deep underground engineering rock burst intensity.

The invention relates to the field of underwater robotics. Based on distance collected every two moments between an underwater robot and an acoustic beacon and sailing distance of the underwater robot during the period, a computer in the underwater robot calculates a steering angle of the underwater robot and controls the underwater robot to sail toward the acoustic beacon. When the distance between the underwater robot and the acoustic beacon decreases to a set value, the underwater robot performs circular motion round the acoustic beacon. Based on a course and speed of the underwater robot and the distance collected between the underwater robot and the acoustic beacon, an improved extended Kalman filter algorithm is used for estimating position of the underwater robot online. According to the invention, the device requires only one acoustic beacon and a range finder, without the need of other auxiliary devices; can be easily transferred to various underwater robots with the range finder easy to install and the correction algorithm program of good transferability; and has the advantages of good stability and reliability, accurate correction, simple installation, long service life and wide application.

The invention discloses a digital rubbing method for stone inscription characters. According to the method, the stone inscription characters are subjected to photo taking in at least three different angles; the photography measuring technology is used for measuring the character three-dimensional dimensions in the photos; one photo with the character plane most similar to the image plane in the photos is selected for distortion correction, and the corrected images are subjected to character division; a real object is used for rubbing the background samples or rock image samples for rubbing background modeling; the divided characters are merged with the rubbing background; and the ink and rice paper diffusion seeping process is adopted for simulating the rubbing effect, and the digital rubbing manufacture is completed. The method provided by the invention realizes the process from the full manual rubbing manufacture to the complete digital manufacture, overcomes the defects of complicated process, low efficiency and high cost of the traditional rubbing manufacture process, and has very important significance on the fast proceeding of a large amount of rubbing treatment of stone inscription and stone inscription rubbing.

The invention discloses an asymmetric double-channel variable section turbocharger, comprising a turbine volute which is internally provided with a turbine impeller and a volute gas inlet channel; the volute gas inlet channel is provided with a volute nozzle at the position close to the turbine impeller; and the volute gas inlet channel comprises a small volute gas inlet channel and a large volute gas inlet channel which is positioned at one side of the small volute gas inlet channel. The asymmetric double-channel variable section turbocharger carries out modification and designing on the traditional turbine volute, adopts the combination of double gas inlet channels, and forms different through flow sections, and effectively utilizes the energy of waste gas of an engine. By fully utilizing the energy of waste gas exhausted by the engine, the asymmetric double-channel variable section turbocharger realizes the same variable section turbine function, can not change the whole structure greatly, and has low cost and easy realization.

The invention discloses a Storm task deployment and configuration platform with cluster adaptability, and belongs to the field of real-time streaming data computing and processing. Through the platform, a Storm cluster can sense internal communication traffic among nodes and remaining resources, and perform running process number configuration self-adjustment according to a topology task demand published by a user and the cluster remaining resources, so that the limitation of the need of artificially specifying a process number in a conventional Storm scheduling method is broken through. A friendly centralized communication traffic monitoring interface is provided for the user by the platform, and is convenient for the user to call in a task program, so that load and resource awareness is realized. Moreover, a one-phase commitment scheduling method which is different from a conventional Storm two-phase commitment scheduling method is implemented on the platform in an embedding way, and communication traffic optimization among different processes at the same node is realized. Through adoption of the Storm task deployment and configuration platform, optimal scheduling can be realized by setting of basic optimization threshold parameters, and great convenience is brought to a cluster user and a manager.

The invention relates to an avionics system interface management system based on models. The system comprises a data hierarchy model, a data type model, a rule configuration model, a data template, a data design module, a database, a data analysis module and a universal interface module. The avionics system interface management system based on the models takes the modeling thought as the core and realizes interface design and management of the avionics system based on unified data; meanwhile, data interaction with the design process of the whole avionics system is realized with a document generation technology and a universal interface technology. The system can perform interface management and provide data support in the whole research and development process of the avionics system.

The invention discloses a double-sprayer and dual-mode 3D printer and an operation method thereof, and belongs to the technical field of 3D printing equipment. The printer comprises a bracket, a bottom platform device, a printed material fixing device, a driving motor I, a sprayer I, a sprayer II, a driving motor II and a central control unit, wherein the sprayer II is provide with two nozzles, and the two nozzles are respectively loaded with liquid A and liquid B in PU resin AB adhesive. The printer adopts a technology for constructing an object by replacing the mode of printing layer by layer through a mode of printing a casing and spraying the filler (PU resin AB adhesive), ensures that the strength of parts is improved, and reduces the part scrapping ratio. The weight mixing ratio of the liquid A to the liquid B in the PU resin AB adhesive is 1:1, as the liquid A and the liquid B can be cured in 1.5 to 2 minutes after being mixed, the curing speed is high, and the purpose of saving printing time is achieved. The printer adds new structure improvement design on traditional 3D printer equipment, and is low in improvement machining cost, and good in inheritability of manufacturing process and technical process.

The invention provides a two-gear mechanical automatic gearbox for an electric vehicle, and belongs to the technical field of electric vehicle transmission. The transmission comprises a transmission control system, a double-stage driving variable transmission mechanism and a gear shift control mechanism, wherein the gear shift control mechanism comprises a centrifugation gear shift control mechanism and a synchronizer gear shift mechanism; and the centrifugation gear shift control mechanism adopts a mechanical structure, detects vehicle speed through gear drive, and generates centrifugal force to be combined with returning force of a spring to realize the mechanical automatic speed change. The automatic gearbox adopts two gears to realize automatic speed change, combines with a driving motor with an excellent speed regulation property, reduces performance requirements of the driving system on the driving motor, and improves the efficiency of the driving motor as well as dynamic property and economy of a whole vehicle; and compared with a conventional electronic-controlled automatic transmission, the manufacturing inheritance is good, and an electrical control operation gear shift mechanism is omitted and replaced with the mechanical gear shift mechanism, so that the manufacturing cost is lowered, and the system stability is improved.

The invention relates to a space application communication platform based on a rail retaining last stage of a carrier rocket. The space application communication platform comprises a satellite adapter, an instrument mounting plate, an attitude control system sensor, an actuator, a storage battery, a power control unit, a task manager, a communication relay load and a solar panel, wherein the communication relay load comprises an antenna and an information processing device, the actuator comprises a counterforce flywheel, a magnetic torque and an attitude control exhaust pipe, the satellite adapter is of a hollow circular truncated cone structure with two open ends, and the instrument mounting plate is mounted at a bottom end of the circular truncated cone structure. According to the communication platform provided by the invention, the surplus carrying capacity of the carrier rocket is fully excavated, any necessary devices necessary for realizing an expansion task are deployed in the structural cabin segment of the satellite adapter by the ideas of loading and restructuring, the communication relay load is loaded, high-rail, middle-rail and low-rail space cloud communication service systems for commercial aerospace are constructed to realize measurement and control, communication and other directional services without secondary launching costs, thereby having the advantages of low-cost operation.

The invention discloses a line loss analysis management system and a line loss analysis management method and is applicable to the technical field of electric measurement. The line loss analysis management system comprises an information concentrator, a power consumption information acquisition software server, a middle database server and an SG186 database server, wherein the information concentrator is connected with a data interface of an electric energy meter through a data line; the power consumption information acquisition software server and the information concentrator transmit the data through a general packet radio service (GPRS) network; the input end of the middle database server is connected with the output end of the power consumption information acquisition software server; and the input end of the SG186 database server is connected with the output end of the middle database server. The system has the beneficial effects that statistic analysis of the middle data is utilized, so that the line loss abnormity reasons are conveniently and rapidly found; and moreover, the line loss abnormity reasons can be analyzed, so that the workers can conveniently check the line, the line loss abnormity reasons are processed, the line loss abnormity check efficiency is improved, and the economic benefits of the power grid company are maintained.

The invention discloses a worm gear, worm, ball and wedge-disc type electronic parking brake which comprises an actuating device and a brake caliper assembly. The brake caliper assembly comprises a push rod assembly and a piston assembly which are arranged in a cavity of a brake caliper. The push rod assembly comprises a wedge disc, balls, a push rod shaft, a self-regulation screw, a pressure spring and a spring limiting sleeve. The push rod shaft extends out of the cavity and is connected with a transmission mechanism of the actuating device. The multiple balls are evenly distributed between the push rod shaft and the wedge disc in a clamped mode and used for generating axial push force. The self-regulation screw is connected with the self-regulation screw of the piston assembly in a threaded mode. The actuating device comprises a shell, the transmission mechanism and a driving motor. The worm gear, worm, ball and wedge-disc type electronic parking brake has the advantages that physical output of a driver can be reduced, a vehicle parking brake system can be simplified, the gap self-regulation function, the speed-reduction and torque-increasing functions, the movement conversion function and the mechanical reverse self-locking function can be conveniently achieved, and electric power consumed during long-time parking can be reduced; in addition, the transformation machining cost is low, and the manufacturing-process succession performance and the technological-process succession performance are good.

The invention relates to a novel polarization tracker, belonging to the technical field of polarization tracking. The novel polarization tracker is mainly composed of four parts including an orthogonal mode coupler, a general signal input or output interface, a rotary rotor and a motor. The motor of the novel polarization tracker drives the rotary rotor to rotate in 360 DEG; and polarization matching is realized till a maximal signal pointing direction is tracked in a polarizing manner. The novel polarization tracker disclosed by the invention has the outstanding advantages that: signals are accurately tracked in the polarizing manner; the novel polarization tracker can be used as a receiving polarization tracker used for synthesizing two signals from two parallel ports and receiving required signals in the polarizing direction through rotation of the rotary rotor; and furthermore, the novel polarization tracker can be used as a transmitting polarization tracker used for receiving a satellite polarization signal through polarization tracking and transmitting by dividing the satellite polarization signal into two signals through the orthogonal mode coupler in the polarization tracker. According to the invention, the disadvantage of non-parallel output of two output arms of the existing polarization tracker can be solved; and furthermore, the novel polarization tracker disclosed by the invention is simple in structure, convenient to cascade and easier to process.

The invention discloses a vehicular mobile communication method for strengthening mobile terminal signals and belongs to the field of wireless communication technologies. The vehicular mobile communication method comprises a communication core network, one or more access network, one or more vehicular wireless transmitter-receiver device, a vehicle bus, one or more vehicular short-distance wireless relay and one or more mobile terminal, wherein the mobile terminal is connected with the access network through the vehicle short-distance wireless relay, the vehicle bus and the vehicular wireless transmitter-receiver device; the access network is connected with the communication core network. According to the invention, the vehicular mobile communication method for strengthening the mobile terminal signals has the advantages that the power consumption is greatly reduced, wireless mobile service signals in a vehicle are good, and the communication quality is high; the radiation of the mobile wireless communications is reduced, which is beneficial to the health of wireless communication users; the device cost is low, and the vehicular mobile communication method is good for the succession of the conventional devices.

The invention relates to a novel orthogonal mode coupler, and belongs to the technical field of couplers. The coupler includes a straight arm waveguide 1, a straight arm waveguide 2, a circular waveguide, a rectangular and circular transition part, a connection waveguide 1, a connection waveguide 2, and stepped impedance regulating blocks. The straight arm waveguides are coupled to the circular waveguide in an electromagnetic manner through a coupling seam. The straight arm waveguide 1 and the straight arm waveguide 2 perform impedance matching through the connection waveguide 1 and the connection waveguide 2. Phase adjusting is carried out by the stepped impedance regulating blocks so that signals entering from the circular waveguide have a phase difference of 0 when being output from the straight arm waveguide 1 and the straight arm waveguide 2. The problem how phases keep consistent if physical paths are inconsistent is solved, and the disadvantage that two output arm of a conventional orthogonal mode coupler are not parallel in output is overcome. The novel orthogonal mode coupler is simple in structure, convenient for cascade, miniature, and easy to process.

The invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with theThe invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with the speed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two drivinspeed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two driving motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is conng motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is connected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem oected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem of skidding, a skidproof differential device is also arranged in the speed reducer.f skidding, a skidproof differential device is also arranged in the speed reducer.

The invention discloses a method for producing a silverwork through a sleave process. The method comprises the following steps of: twisting a silver wire into a filament, pressing and pinching, filling the pressed and pinched silver wire into a silver frame, striking, welding, molding and the like. The sleave process of the silverwork does not only have the delicate degree of the conventional weaving process, but also is that the silver wire is pressed and pinched into a sleave to fill the silver frame, and thus the silver wire can be randomly moulded and is not easy to break, a sleave decoration object has large plasticity, the appearance is simple and fashional and the silver decoration object looks like relatively full and unique.

The invention discloses an underground metal mine goaf hazard degree grading evaluation method, which comprises the following steps: firstly, selecting 16 indexes to construct an underground metal mine goaf hazard degree grading evaluation index system, dividing hazard degrees into four grades, and determining a grading standard; then, determining the comprehensive weight of each index by adoptingan AHP, entropy weight method and game theory combined weighting method; establishing a matter element extension model for goaf risk degree evaluation; substituting the weight value of each evaluation index into the matter element extension model to obtain each index correlation degree and a comprehensive correlation degree value which belong to each risk degree grade; and finally, determining the danger degree level according to the maximum correlation degree principle. According to the method, the goaf hazard level can be evaluated comprehensively, objectively and accurately, the evaluationprocess is clear, the evaluation result is objective, and a new method can be provided for grading evaluation of the underground metal mine goaf hazard level.

The invention discloses a multi-nozzle type variable flow rate supercharging device which comprises a volute casing, wherein the volute casing is internally provided with an air inlet and a volute air inlet passageway which is communicated with the air inlet, and the volute air inlet passageway is internally provided at least one intermediate baffle plate. The multi-nozzle type variable flow rate supercharging device provided by the invention has a simple air inlet regulating and controlling mechanism, the control mode is easy to realize, the reliability is high, and the problems of the existing vane type variable turbocharger in the aspects of reliability and efficiency and too low efficiency of a tongue shape baffle plate variable cross section charger are solved effectively.

The invention discloses a distributed type access gene cemetery. The distributed type access gene cemetery is provided with memorial funeral buildings, funeral sacrificial areas, automatic warehousing systems, time capsules, life information management systems, life philosophy exhibition halls and life science halls. The distributed type access gene cemetery which is collected sequentially and stored in classification is a materialized genealogy museum, by the aid of the cemetery, the dead can have an opportunity to help later generations, and people can trace genetic data of ancestors to repair gene defects and find out gene drugs for controlling congenital diseases.

The invention discloses a section-variable turbine. The turbine comprises a volute, wherein the volute is provided with an executing mechanism; an annular air flow channel is formed in the volute and is provided with an air inlet; and an air inlet section adjusting mechanism is arranged in the annular air flow channel and is in transmission connection with the executing mechanism. The volute from the inlet to a flow channel area with a 90-degree section is divided into two parts with different upper and lower circulating capabilities, and a gas guide device capable of freely adjusting is used for adjusting and controlling two different flow channels to sequentially work, so that the circulating area of the flow channels is controlled, the fuel gas state of the turbine is entered through adjustment, and the supercharging requirement of an engine in a full working condition range is met; and the executing mechanism can adjust the rotation angle of a movable straight plate and a movable tongue-shaped baffle plate according to the actual working condition of the engine to change the throat section and an air inlet flow channel, so that a turbosupercharger and the engine are well matched under the full working condition.

The invention discloses a method for drawing a flip collar structure of a suit. After a roll line is determined, a parallel line which is 1 cm away from the roll line is drawn in the direction away from a clothes body. A drawing formwork is made by a right triangle taking a rear neck arc length as one right-angle side of the right triangle and a stand collar height + turndown collar height as theother right-angle side of the right triangle, so that an intersection of the rear neck arc length and a bevel edge coincides with a front collar width point, the other point of the bevel edge falls toa straight line which is at a parallel distance of 1 cm from the roll line, so as to determine the flip collar lodging quantity, so that the position of a rear collar structure line is determined. Compared with the prior art, the drawing method is accurate and reasonable, drawing steps are simple and convenient and easy to learn, and the drawing efficiency is high; after a garment is manufactured, the collar comfort and attractiveness are somewhat improved; and at the same time, enterprises' production efficiency can be improved, which is favorable for platemaking technology inheritance and promotion.

The invention discloses a traditional Chinese medicine digital visualization system. The system comprises an infrared thermal imaging device and an infrared image workstation. The infrared thermal imaging device is used for collecting human-body heat radiation energy of an examinee; the infrared image workstation is used for adopting a bone-length measurement method for fitting human-body meridians and acupoints to a human-body thermal-state distribution image to obtain a traditional Chinese medicine digital human image according to a national standard meridian acupoint map and in combinationwith important body surface mark points of a human-body anatomical structure; then temperature data extraction, calculation and analysis are conducted on the traditional Chinese medicine digital humanimage to obtain a traditional Chinese medicine digital visualization analysis report. The invention further discloses a traditional Chinese medicine digital visualization method. By means of the traditional Chinese medicine digital visualization system, the standard meridian acupoints are fitted to the digital human-body thermal-state distribution image by means of the bone-length measurement method, the traditional Chinese medicine digital human image which better accords with the actual condition can be obtained, and an accurate quantitative basis is provided for subsequently utilizing theimage for data extraction calculation, and analysis to obtain the dialectical result according to traditional Chinese medicine theories.

The invention provides a method for protecting privacy in convex quadratic programming outsourcing on the basis of affine transformation and belongs to the field of calculation outsourcing. The method includes that steps that (1) a user side inputs calculation parameters; (2) encrypted calculation parameters are formed by randomly generating a matrix and hiding parameter information through affine transformation; (3) the encrypted calculation parameters are transmitted to an outsourcing side; (4) the outsourcing side receives the encrypted calculation parameters transmitted by the user side, a solver is selected for calculation, and a calculation result is returned to the user side; (5) the user side receives the calculation result returned by the outsourcing side; (6) an optimal solution is obtained by decrypting the calculation result, and calculation is finished.