136results about How to "Save economic cost" patented technology

The invention discloses an intelligent vehicle call system which comprises personal mobile communication equipment, vehicle-mounted communication equipment and a a cloud server, wherein the personal mobile communication equipment is used for transmitting position information and vehicle calling request at a requesting end to the cloud server and receiving vehicle information fed back according to the vehicle calling request; the vehicle-mounted communication equipment is used for providing position information and current operation state for the cloud server and checking the vehicle calling request transmitted by the cloud server and position information of passengers; and the cloud server is used for receiving position information of the personal mobile communication equipment and the vehicle-mounted communication equipment, performing comparison in an electronic map, calculating and seeking to obtain a vehicle position nearest the passengers according to principle of proximity, and transmitting the position information of the passengers to the vehicle-mounted communication equipment, and the vehicle-mounted communication equipment receives the vehicle calling request and the position information of the passengers so as to complete the vehicle calling pairing.

The invention discloses a staff dispatching system. The staff dispatching system comprises at least one user terminal, further comprises a matter and repair reporting and evaluating module, a dispatching information processing module and a dispatching module, wherein the at least one user terminal is used for sending out service requirements and evaluation information; the matter and repair reporting and evaluating module is connected with the at least one user terminal, used for receiving the service requirements and evaluation information, and sending out the service requirements and evaluation information; the dispatching information processing module is connected with the matter and repair reporting and evaluating module, and used for receiving the service requirements and evaluation information and sending out a dispatching information instruction; and the dispatching module is connected with the dispatching information processing module, and used for receiving the dispatching information instruction and sending out the dispatching information. The staff dispatching system provided by the invention achieves automatic management of the dispatching, so that the dispatching is efficient, accurate and timely. Moreover, the time and economic loss of a proprietor and a property management company is reduced.

The invention relates to a base material fitting method comprising the following steps: fixing a first base material on a platform; fixing a second base material by a fixing jig so that the second base material and the first base material form a preset angle; driving the platform of the first base material or the fixing jig of the second base material so that the first base material and the second base material move to a fitting position; acting external force on the surface of the second base material by an external force applying device so that the first base material and the second base material are contacted; and enabling line contact ends of the first base material and the second base material to move to the non-fitted direction so that the first base material and the second base material are fit. According to the embodiment of the invention, when lifting drive external force is applied to the second base material by the first external force applying device, the first base material and the second base material are contacted, and then horizontal drive external force is applied by moving the external force applying device so that the two base materials are tightly fit and are completed without under vacuum environment, time and economic cost are saved, and efficiency is improved.

The invention provides an offline type dispatching operation ticket system and method based on field error prevention and simulated ticket training. The system is mainly composed of a main data server, a reserved data server, a plurality of work stations, a mobile terminal and related network equipment, and is characterized in that the main data server or the reserved data server is used for judging and processing an error prevention operation rule, sending operation alarming information to each work station at the same time, and storing historical and real-time data in a dispatching automation system OPEN3000, so that the synchronization of the data of each work station is realized; each work station is connected with the data server by a data source and needed data information is obtained and stored; the plurality of work stations comprise dispatcher work stations which are used by on-duty dispatchers and related administrative staff; the dispatcher work stations are used for finishing functions, such as simulation, checking, simulated preview, operation ticket management and information inquiry, image maintenance, of dispatching operation ticket.

The embodiment of the invention provides a calculation method and system for numerical simulation of a rockfill concrete pouring process. The calculation method comprises the following steps: according to a finite element/discrete element coupling analysis method FEM/DEM, calculating and analyzing a stacking process and a final stacking form of a three-dimensional model of an initial state of a rockfill block; after calculating and analyzing the packing process and final packing state of the initial state three-dimensional model of rockfill, calculating and analyzing the pouring process and final filling state of self-compacting concrete in the final packing state of rockfill based on the SPH method. The method and the system provided by an embodiment of the present invention can accurately simulate the pouring process of self-compacting concrete, and not only can the flow state of self-compacting concrete in rockfill pores be observed directly, but also the final compaction state ofrockfill concrete can be known, which saves a lot of manpower cost, experiment cost and economic cost, and avoids the difficult problem that the experiment method is difficult to observe on-line.

The invention relates to a personalized insole optimization design method based on mechanical characteristics of foot tissue layers of a diabetic patient, which comprises the following steps of: [1] testing and analyzing sole pressure; [2] establishing a finite element model and performing simulation optimization; [3] performing 3D printing. According to the invention, an actual measurement methodand a finite element analysis method are combined, the method has the advantages of accuracy, convenience, rapidness, economy and the like, can analyze various working conditions through a perfect model and various load conditions, and provides a personalized insole design for the diabetic patient, thereby reducing the possibility of the diabetic patient to generate plantar ulcer, relieving the pain of the diabetic patient and providing positive assistance for the diabetic patient to keep the health of the diabetic patient.

The invention provides a cross-domain key management method based on IBC and PKI, the method takes respective advantages of two systems and solves a problem of mutual trust of KGC public parameters under a cross-domain environment. In the key management method, a plurality of independent KGC systems are built based on an IBC system, a CA system is built based on a PKI system, the CA system signs and issues a digital certificate for the public parameter of each KGC system, further generates a cross-domain authorization list for each KGC according to a cross-domain authority control strategy andissues the cross-domain authorization list to each node user through each KGC system. When cross-domain authentication is executed between the node users, ID of an opposite side and index informationof the KGC system, where the opposite side is, are exchanged, the public parameter is extracted from the cross-domain authorization list and an IBC related algorithm is used, thus, authentication andcommunication processes can be completed. With the method provided by the invention, time and economic cost caused by accessing to a PPS or other switching systems are saved, moreover, a flexible cross-domain authority control strategy is supported, so the method is very suitable for the emerging fields with massive node users, such as the Internet of Things and electronic currency.

The invention discloses a method, device and system for achieving vehicle diagnosis and belongs to the technical field of intelligent terminals. The method comprises the steps of determining a link layer protocol entering a vehicle ECU through roll polling of each ODB link layer protocol, receiving and analyzing a diagnosis command sent by an intelligent terminal, acquiring a diagnosis result from the vehicle ECU through the link layer protocol according to the diagnosis command and analyzing the diagnosis result, and sending the analyzed diagnosis result to an intelligent terminal through a Bluetooth communication module. According to the method, device and system for achieving vehicle diagnosis, diagnosis of vehicle failures is achieved through the intelligent terminal, and as a result, diagnosis of the vehicle failures can be achieved more quickly and conveniently for a user, intelligentization and convenience of a vehicle are improved, and time cost and economic cost are saved for the user.

The invention discloses a method for automatically classifying intelligent contracts on the basis of feed-forward neural networks. The method has the advantages that intelligent contract codes can be automatically classified by machines; the time and economic costs can be saved as compared with current traditional methods for manually classifying existing intelligent contracts, and the method is competent for tasks with massive contracts which cannot be manually classified; re-training can be carried out by the aid of updated contract sets owing to training modes of the feed-forward neural networks when labeled intelligent contract sets are updated, so that automatic classifiers can adapt to new change.

The invention provides a scheduling method for a cloud workflow. A scheduling model that sets resource demand minimization as a goal and uses a task deadline as a constraint condition is established, an optimal solution to the scheduling model is searched, and according to a scheduling scheme corresponding to the optimal solution, a cloud workflow is scheduled; and the optimal solution to the scheduling model is searched by using a hybrid adaptive iterative local searching method. According to the method, compared with the prior art, the provided scheduling method for searching a multi-mode cloud service workflow by using iterative local searching has higher efficiency in terms of a searching speed and solution efficiency; and a resource distribution method can be found rapidly within the task deadline, so that the user's task can be completed efficiently with the lowest costs. Therefore, the time cost and the economic cost are saved for the user.

The invention discloses a method for assembling upper and lower seal heads of a nuclear power containment and a jig frame structure. Annular supporting columns and a center column are utilized to fix and adjust a containment body so that the upper and lower seal heads can be installed. The type of an upper segment and a lower segment is adopted for each supporting column, and the hydraulic adjusting mode is adopted for the lower segments of the supporting columns so that the construction requirements of the containment can be met. The mode for adjusting a containment board through the center column is faster, more convenient and more effective, meanwhile, the supporting column supporting structure is simpler and more efficient, and a large amount of time cost and economic cost can be saved.

The invention discloses a preparation method of a DNA sequencing template. The preparation method comprises following step: (1) DNA molecules to be sequenced are subjected to fragmentation, end terminal repair and supplement, A addition on 3' end, and terminal connection; (2) enrichment of target DNA segments is realized via three times of semi-nested PCR amplification, wherein a primer used in the former two times comprises a specific primer and an universal primer, a primer used in the third time is composed of two universal primers, and the PCR amplification is multiplex-PCR reaction in the former two times. Compared with Illumina GA sample pretreatment processes, the preparation method is lack of a step of sample treatment, so that time is shortened, cost is reduced, and demanded amount of the initial DNA sample is reduced; in addition, the most significant is that reduction of cycling times and application of Phusion high fidelity DNA polymerase are capable of reducing mutation caused by PCR, so that processing on obtained data becomes relatively simple and clear, and when the preparation method is used for a plurality of re-sequencing experiments, demand on sequencing depth is reduced.

The invention discloses a shallow-buried bias tunnel asymmetric supporting structure and a construction method. According to the shallow-buried bias tunnel asymmetric supporting structure, deep-buriedside initial shotcrete, a deep-buried side steel arch frame, deep-buried side composite shotcrete, a deep-buried side upper step feet-lock bolt, a deep-buried side lower step feet-lock bolt and a deep-buried side system bolt constitute a deep-buried side initial supporting structure body, and shallow-buried side initial shotcrete, a shallow-buried side steel arch frame, shallow-buried side composite shotcrete, a shallow-buried side upper step feet-lock bolt, a shallow-buried side lower step feet-lock bolt and a shallow-buried side system bolt constitute a shallow-buried side initial supporting structure body. By adopting a construction method of the asymmetric supporting structure, bias tunnel deep-buried side supporting linings are strengthened, the stress situation of the tunnel liningscan be effectively improved, construction is convenient, the construction progress is fast, economic rationality is achieved, and the shallow-buried bias tunnel asymmetric supporting structure can safely and quickly pass through a shallow-buried bias section.

The invention discloses a method for characterizing spatio-temporal evolution of ground settlement, and belongs to the field of geological disasters. According to the method for characterizing the spatio-temporal evolution of the ground settlement, radar image data is involved; the spatio-temporal evolution of the ground settlement of a region is quantified, so that the change of the ground settlement rate of each ground pixel can be mastered, and the development trend and direction of historical ground settlement can be showed; and therefore, a basis is provided for urban disaster preventionand urban planning, a specific method for solving a ground settlement disaster is looked for, and the time and the economic cost are saved for urban disaster prevention and control.

The invention provides a configuration method and a configuration device for a long-distance branch device. After receiving a configuration short message from a headquarter server, a the long-distance branch gateway device dials up a mobile network and sends the internet protocol (IP) address which is obtained from dial-up of the mobile network to the headquarter server, the headquarter server sends supplement configuration information to the long-distance branch gateway device according to the IP address, the long-distance branch gateway device establishes a virtual private network (VPN) tunnel between the headquarter server and the long-distance branch gateway device according to the supplement configuration information, and then the headquarter server manages and controls the long-distance branch gateway device through the established VPN tunnel. By means of the configuration method and the configuration device for the long-distance branch device, in the configuration of the long-distance branch gateway device, no specialized person is needed in the configuration of a route in site, no need of mastering device configuration technology to power on the long-distance branch gateway device, configuration can be completed automatically, and thus plenty of time and economic cost are saved for a user.

The invention discloses a testing system and a testing method of an outburst-preventing bedrock buckling failure model of a karst tunnel, which belong to the testing system and the testing method of a surrounding rock failure model under a hydraulic coupling action. The testing system of the outburst-preventing bedrock buckling failure model of the karst tunnel comprises a base, a round bearing frame, separated combination type uniformly-distributed loading devices, a bearing platform, an electro-hydraulic servo control actuator, an electro-hydraulic servo control box, a three-dimensional digital camera and three-dimensional sound emission devices; the separated combination type uniformly-distributed loading devices are utilized for loading a testing model in the horizontal direction and the vertical direction; the electro-hydraulic servo control actuator is utilized for simulating water pressure of the rear side of a bedrock; the three-dimensional digital camera and the three-dimensional sound emission devices are utilized for monitoring and locating three-dimensional deformation and three-dimensional sound emission information of the testing model during a testing process. According to the testing system and the testing method of the outburst-preventing bedrock buckling failure model of the karst tunnel, disclosed by the invention, an engineering environment of an outburst-preventing bedrock is accurately simulated, the testing efficiency is increased, the testing time and the economic cost are reduced, and the accuracy of a testing result is increased.

The invention discloses a multifunctional SLM device, and belongs to the technical field of laser 3D printing. The multifunctional SLM device is composed of four parts including a preheating module, avacuumizing module, a gas circulating and filtering module and a programmable logic controller (PLC).According to the multifunctional SLM device, firstly, a forming chamber is repeatedly vacuumized,and inert gas is introduced, so that the oxygen content is quickly reduced within a limit range; two modes of induction heating and infrared heating are combined, so that the heating speed is high, the material application range is wide, the heating time can be greatly shortened, the workpiece quality is obviously improved, and the temperature gradient of a forming piece is reduced; and after heating is completed, the inert gas is continuously introduced, and a secondary circulating and filtering structure is adopted, so that impurity particles in the gas are effectively filtered, the secondary service efficiency of the gas is obviously improved, and the economic cost is reduced.

The invention relates to the technical field of building construction, in particular to a tunnel collapse treatment method capable of firstly arching and then filling. After a temporary I-steel arch is arranged below an original primary support adjacent to a collapse body to reinforce the original primary support, a construction platform is arranged at the tunnel face adjacent to the collapse bodyin a backfilling mode, the collapse body is cleaned after a grouting large pipe shed is formed at the top of the collapse body, and then concrete with a predetermined thickness is arranged in a collapse hole above the collapse body in a backfilling mode, so that potential safety hazards in construction can be effectively reduced, the construction speed is accelerated, the construction period is shortened, and the construction time and economic cost can be further effectively saved.

The invention relates to rectangular concrete comprehensive pipe gallery prefabricated pipe sections and belongs to the technical field of buildings. A rectangular pipe gallery is detached into three standard members for prefabrication. Splicing is achieved through reserved connectors, holes are reserved, and connection is achieved through bolts. Waterproof structures are reserved at the seams. The pipe sections can be spliced in a mode A or a mode B, and staggered joint connection is achieved. The rectangular concrete comprehensive pipe gallery prefabricated pipe sections have the effects and advantages that the structure is simple, the whole member can be completed through only three kinds of pipe sections, manufacturing of molds in the early stage is reduced, and the cost can be greatly reduced; the waterproof effect is good, the application range is wide, and the rectangular concrete comprehensive pipe gallery prefabricated pipe sections are suitable for construction through the open cut method and the shield method; and construction is convenient, the construction speed is high, complex operation in the construction process is avoided, and the construction cost can be greatly reduced.

The invention provides a construction process for shipping large sinking pipes by a self-propelled semi-submerged ship for transporting the sinking pipes from a sinking pipe prefabrication factory to a foundation trench region for sinking pipe mounting construction. A mooring and outfitting region is arranged next to the foundation trench region, the semi-submerged ship loads the sinking pipes in a deep dock of the sinking pipe prefabrication factory and transports the same to the mooring and outfitting region, and after an outfitting step of the sinking pipes in the mooring and outfitting region is finished, the sinking pipes are transported to the foundation trench region in a floating manner through a sinking pipe mounting ship and a tug. According to the construction process for shipping large sinking pipes by the self-propelled semi-submerged ship provided by the invention, the floating transportation distance of the sinking pipe is greatly reduced, and the work efficiency of transporting the sinking pipe to 3-4 times; secondly, as draft of the semi-submerged ship which transports the sinking pipes is smaller compared with that of sinking pipe floating transportation in the prior art, the requirement on channel depth is greatly reduced. The channel needs not to be excavated, so that the time and economical costs are further saved; furthermore, the requirements on natural conditions such as a water wave flow by transporting the sinking pipes by the semi-submerged ship are relatively low, the limiting condition of transporting the sinking pipes is reduced, and the work efficiency of transporting the sinking pipes is further improved.

The invention discloses an automatic nursery stock cuttage device. The automatic nursery stock cuttage device comprises a movable vehicle body which stretches across a seeding bed, and a conveying mechanism, a discharge device and a cuttage device which are arranged on the vehicle body. The vehicle body comprises four supporting legs symmetrically arranged on the left side and the right side, andsupports for connecting the adjacent supporting legs. A rotatable gear is arranged between the two supporting legs on each side. The gears are meshed with racks on the two sides of the seedling bed and each connected with a driving motor. The conveying mechanism comprises material conveying cylinders, a conveying belt and material pushing cylinders in sequence from front to back. The material conveying cylinders are fixed to a supporting plate side by side. The discharge device is arranged above the conveying belt and comprises a discharge hopper and a vibrating motor. The automatic nursery stock cuttage device has the advantages of being complete in automation, high in efficiency, consistent in cuttage depth and capable of keeping the vertical state after cuttage.

The invention discloses a paperless animation production method. According to the method, original drawings and design drawings are produced through a TVP software, and a ToonBoomHarmony software is used for the production, the coloring and the compositing including BG, coloring and rendering of animation. The paperless animation production method achieves high level of integration, environmentally friendliness and intelligence of animation production, thereby greatly saving the costs.

The invention discloses a device used for nuclear fuel assembly loading and unloading operations. The device is mounted on a mounting foundation pit, and comprises a flange, guide posts, a lower-part reactor inner component simulation body, a lower core plate simulation body, first embedded parts, second embedded parts, a third embedded part and a support. The first embedded parts are embedded on the upper end of the mounting foundation pit. The second embedded parts are embedded at the lower end of the mounting foundation pit. At least three second embedded parts are distributed on the periphery of the mounting foundation pit. The third embedded part is embedded below the mounting foundation pit. The flange is arranged on the first embedded parts. The lower core plate simulation body is arranged on the third embedded part. The upper end of the lower-part reactor inner component simulation body is connected with the flange. The lower end of the lower-part reactor inner component simulation body is connected with the support. The device is used for simulating the visual environment during the loading and unloading operations of a pressurized water reactor power plant reactor pressure vessel. With the device, precise position support and simulated environment can be provided for the nuclear fuel assembly. The invention also discloses a mounting method of the device used for nuclear fuel assembly loading and unloading operations.

The invention relates to a mobile phone information board and a using method thereof. The core of the information board of the invention comprises the mobile phone information board and a city road traffic transformation map; a Pocket-VMS software embedded module in the information board is responsible for receiving, analyzing and processing; the finally generated road graphic information is displayed on a display screen at a mobile terminal. The using method comprises the following steps: 1) a traffic information database server and a communication server are arranged; 2) the real-time dynamic traffic is read from the database server and is sent to the mobile terminals, such as mobile phones, PDA, and the like., in real time through a wireless communication system; 3) the Pocket-VMS software embedded module is pre-loaded and stored in the mobile terminals, such as the mobile phones, the PDA, and the like; 4) the city real-time traffic jam state information can be obtained through a software display interface of the Pocket-VMS software embedded module; 5) the journey schedule, emergency, public information services, gas station inquiry, emergency assistance services, vehicle services, destination details, POI inquiry, dynamic parking and the practical dynamic traffic information can be inquired.

The invention discloses an individual body height predicting method, a system, a readable storage medium and a terminal, wherein the method, the system, the readable storage medium and the terminal relate to the field of body height predicting technology. The method comprises the following steps of firstly setting the age of the individual whose body height is to be predicted to T, calculating thetheoretical body height of the individual in the age N; then based on a big data body height sample, dividing a growth process from 0 to N years to a plurality of continuous age period intervals, calculating the body height mean values and body height SD values which correspond with the left end point and the right end point of each age period interval; then acquiring the body height mean value and the body height SD value which correspond with the adulated interval, and calculating the body height mean value and the body height SD value which correspond with the individual at the age T; andfinally calculating the heredity body height value of the individual at the age of T according to the plurality of data. According to the method of the invention, whether acquired factors at a growthtime point T facilitate body height increase according to the heredity body height value and the actually measured body height value, thereby quantifying the body height influence caused by the acquired factor of the individual, and supplying a data support for the acquired factor influence condition of the individual.

The invention provides a logistics distribution optimization method based on a genetic -simulated annealing combination algorithm, relates to the technical field of logistics intelligent distribution,and aims to obtain a globally optimal solution by using an improved genetic algorithm, and use the globally optimal solution as an initial solution of the improved simulated annealing algorithm to finally search the optimal solution. According to the combined algorithm mode, the defects of long optimization process and low convergence speed of the simulated annealing algorithm are overcome by utilizing the relatively high global search capability of the genetic algorithm, and the probability of convergence to a locally optimal solution can be greatly reduced by utilizing the relatively high local search capability of the simulated annealing algorithm, so that the performance of the overall algorithm is improved. According to the invention, the technical problems of poor timeliness and toohigh labor cost in the traditional logistics distribution process are solved. The service quality and the vehicle full load rate are improved, the transportation and distribution cost is reduced, thetransportation mileage is saved, and the path benefit is maximized.

The invention provides a kusnezoff monkshood root processing method, which comprises the following steps of: a, cleaning a kusnezoff monkshood root medicinal material with water, and soaking by adding water, wherein a mass ratio of the medicinal material to the water is 1: (3.5-4); simultaneously adding NaHCO3 or Na2CO3 which is 5 to 11 percent of the mass of the medicinal material, regulating a pH value to be 8-9, soaking for 48 hours until the medicinal material does not have a dry core, and taking out; and b, steaming or cooking for 4 to 10 hours in a cooker, taking out, drying in the air, slicing and drying. The invention also provides a kusnezoff monkshood root processed product prepared by the kusnezoff monkshood root processing method. The method can effectively shorten medicinal material processing time, increase economic benefit and improve production efficiency of enterprises; and the medicinal material processed by the method is stable in content and good in quality.

The invention relates to a corrosion method of a 5xxx series Al-Mg alloy grain boundary, which mainly comprises the following steps: 1, preparing a corrosion liquid which comprises the following components: 80-110 mL, 15-20 mL, 0.5-3.5 mL of HF, 0.5-3 mL of HCl and 2-5 g of HCl; 2, embedding an aluminum alloy sample; 3, polishing the embedded samples sequentially with abrasive paper from low meshes to high meshes; 4, polishing the ground sample; 5, cleaning the polished sample with absolute ethyl alcohol; 6, corroding the sample for 60-90 seconds by using the prepared corrosive liquid; and 7, after corrosion patterns appear on the surface of the sample, cleaning the sample with absolute ethyl alcohol and carrying out drying treatment. After the method is used for corroding the 5xxx series Al-Mg alloy, the grain boundary of the alloy can be clearly observed, and the method is low in equipment requirement, simple in operation step, capable of saving cost, good in stability and suitable for researching the grain morphology, the grain size, the microstructure performance and the like of the Al-Mg alloy.

The invention discloses a multifunctional vertical zero overlapping scanning interferometry device which comprises a main control unit, a drive control circuit and an air floatation vibration isolation base. A stand column and a four-dimensional motion adjusting platform are arranged on the air floatation vibration isolation base, a vertical lifting shaft is arranged on the stand column, and a laser wave surface interferometer is arranged on the vertical lifting shaft. A detachable CGH five-dimensional motion combination adjusting platform is arranged on a light output path of the laser wave surface interferometer, the CGH five-dimensional motion combination adjusting platform is located over the four-dimensional motion adjusting platform, and the control end of the CGH five-dimensional motion combination adjusting platform and the control end of the four-dimensional motion adjusting platform are connected with the main control unit through the drive control circuit. And the control end of the laser wave surface interferometer is connected with the main control unit. According to the invention, high-precision and high-efficiency measurement of a large-aperture plane, a spherical surface and a convex aspheric surface can be realized, zero measurement of the plane, the spherical surface and the aspheric surface can be flexibly carried out, and high-efficiency and high-precision detection of a large-aperture optical surface shape is realized in combination with automatic control.

The invention discloses a preparation method of blue light emitting perovskite quantum dots based on a surface modifier. The preparation method comprises the following steps that 1, all-inorganic perovskite quantum dots CsPbBr3 and functional polyethylene glycol are dissolved in deionized water to obtain an all-inorganic perovskite quantum dot CsPbBr3 water solution and a functional polyethylene glycol water solution; 2, the all-inorganic perovskite quantum dot CsPbBr3 water solution and the functional polyethylene glycol water solution are fully stirred and mixed to obtain a mixed solution; 3, the mixed solution in the step 2 is centrifuged, and the obtained precipitate is the blue light emitting perovskite quantum dots based on the surface modifier. The method utilizes the functional polyethylene glycol material to coat the all-inorganic perovskite quantum dots, the purpose of changing emitting wavelength is achieved, the biocompatibility of the all-inorganic perovskite quantum dotsis also improved, and meanwhile a lot of time and economic costs can be saved.