59results about How to "Unified function" patented technology

The invention provides a P2P financial platform fund bank storage management method based on a block chain, a P2P fund storage management system of a first participant, a P2P financial platform application of a second participant, a government platform and an insurance platform of a third participant and the like need to be provided, and all the participants are mutually connected through the block chain network. The block chain network comprises an intelligent contract block chain network and a certificate storage block chain network; after the P2P financing platform application executes thepoint-to-point network borrowing and loan service, the P2P fund storage and management system performs storage and management; and the insurance platform provides insurance service, performs service scheduling and storage through the P2P fund storage and management platform, inquires and analyzes storage data through the government platform, and audits and supervises P2P services. According to theinvention, the whole-process legal management of P2P fund bank storage and management is realized, the data storage difficulty of P2P transaction is reduced, the system performance based on the blockchain technology is improved, the approval process and business transaction complexity of multiple participants in fund hosting are simplified, and the information transparency and the supervision strength are improved.

The invention discloses a parking location guide and management system based on a CAN bus, which comprises an entrance control module, a parking location detection module, a parking location guide and counting module, an exit control module and an upper computer; the entrance control module controls an entrance road blocking machine, recognizes and receives car license plate information and drives a parking location information display screen; the parking location detection module detects the use and distribution condition of parking locations in a real-time manner; the parking location counting and guide module is used for the parking location counting and parking location guide, and a parking location is determined by the instruction of a guide board; the exit control module controls the exit road blocking machine, and recognizes the car license plate information and starts a charging system; and the upper computer manages and monitors the operation of the whole system. The parking location guide and management system realizes the functions of the real-time parking locations counting, the automatic parking location guide and accurate charging of a parking space, etc., which greatly reduces the manpower cost and guarantees the parking convenience and charging reliability; and the functions of the CAN parking location guide and management system can be customized according to the needs of customers and have strong expandability.

The invention discloses a wastewater treatment process monitoring system based on a wireless network. The wastewater treatment process monitoring system based on the wireless network comprises an industrial wireless sensor network, an industrial wireless local area network and a wireless wide area network. The industrial wireless sensor network is responsible for collecting information of field devices of each process of the wastewater treatment. The industrial wireless local area network is responsible for processing the information which is sent by the industrial wireless sensor network and returning the processed data to the field devices at the same time. The wireless wide area network is responsible for transmitting and replying remote monitoring application and sending stoppage information to appointed technical people automatically at regular intervals during the period from stoppage occurrence to stoppage resolution. A traditional distributed collecting and distributing control system is updated to a network control system through different wireless networks, and therefore wireless remote real-time monitoring is truly realized.

The invention relates to a method for preparing selectively enhanced aluminum-based composite from ceramic particles and belongs to the field of metal matrix composites (MMCs). The preparation method comprises the following steps: firstly, preparing porous ceramic blanks; and secondly, putting the porous ceramic blanks at a part needing to be enhanced, injecting molten alloy into a mould at 750-1,100 DEG C, applying pressure of 20-50MPa to forcibly fill the molten alloy into the porous ceramic blanks and a mold cavity, and solidifying, thus obtaining the selectively enhanced aluminum-based composite. The method has the advantages that a foaming technology, an injection molding and a gel casting process are combined, thus leading the porous ceramic blank to have designability; the MMC reinforcement and an aluminum matrix are integrally formed by adopting extrusion casting process, thus fully playing the advantages of high strength and high toughness of the aluminum matrix and wear resistance of the MMC reinforcement. The composite has the advantages of high thermal conductivity, good radiation capability, excellent wear resistance and light weight.

The invention relates to a winding form construction method for small-and-medium-sized linear riverways and aims to effectively solve the problem of winding form construction of the linear riverways. The method includes: throwing gravels to form gravel piles on one side of a main river channel from the bottom layer to the upper layer, wherein the distance between nearshore points and far off-shore points of the gravel piles is 1 / 5 of the width of the main river channel; arranging gabions on water sides and lateral sides of the gravel piles to fix the gravel piles; expanding a riverway opposite to the gravel piles to a width 1 / 5 of that of the main river channel; downwardly excavating one side, with the riverway modified, of a riverbed to form a deep pool, and piling up excavated earthworks to air faces of the gravel piles to form a shoal; positioning the two gravel piles on two sides of the riverway respectively to form a gravel pile group, enabling the air faces of the gravel piles to form a shoal structure, enabling the modified opposite bank to form a deep pool structure, and planting submerged plants in the deep pool; arranging three to five groups of gravel piles in the linear riverway to form an ecological gravel group to increase local winding degree of the riverway, so that winding form construction of the riverway is realized. The winding form construction method for the small-and-medium-sized linear riverways has the advantages that unification of purification and landscape functions is realized, and enormous economic and social benefits are achieved.

The invention relates to a small and medium straight river longitudinal winding form construction method which comprises the following steps: two sides of a riverway bank slope are enclosed by wooden piles, mixture is filled between the piles and the riverway bank slope from the bottom layer to the upper layer to form a new river bed, and a main river groove is formed between two rows of wooden piles; willow bundles or rock filled gabions are placed at one side of the new river bed of the two rows of wooden piles; riprap is placed at one side of the main river groove; a gabion nail dam is arranged in a riverway slantly from the bank slope to the middle of the riverway; and a plurality of clear water creeks are excavated on the new river bed and aquatic plants are planted. The method solves the detects of extinction of various species and the like as an artificial straight river is not suitable for survival and growth of a plurality of animals, especially the inhabitation and egg reproduction fields of the aquatic animals are limited. With the invention, water body is effectively purified, the environmental quality of the river water is improved, a better inhabitation place is provided for various aquatic animals, different water flow states are formed, the requirements of various aquatic animals are met, the original function of the riverway is not influenced, and the integration of dirt purification and flood control is realized.

The invention relates to a preparation method of an electromagnetic shielding multi-layer composite material in an electric vacuum device, which belongs to the field of preparation of layered composite materials. The preparation process comprises the following steps: firstly performing large-deformation rolling bonding on oxygen-free copper after surface treatment and an electrical pure iron thin plate, and getting a Cu / Fe / Cu composite foil with higher parallelism and mechanical properties; and then combining and stacking the Cu / Fe / Cu foil with a molybdenum sheet and other low thermal expansion refractory metals, placing in a diffusion welding furnace to perform diffusion welding at a certain temperature and pressure, and further preparing the multi-layer composite material with good magnetic shielding effect, high dimensional precision, strong mechanical properties and good thermal matching. By adopting the new preparation process, not only the problem that the low thermal expansion metals are difficult to compound is solved, but also the advantages of rolling bonding and the diffusion welding process can be fully played, thereby realizing good parallelism among laminated layers, high dimensional precision and excellent mechanical properties of the material, simultaneously having relatively low cost and high production efficiency, and being easy to realize large-scale and industrialized production.

The invention discloses an electronic product protective sleeve provided with a flashlight. The protective sleeve comprises a protective sleeve casing, a photosensitive element, at least one light-emitting element and a control circuit driving the light-emitting elements to flash, wherein the photosensitive element, the light-emitting elements and the control circuit are fixed on the protective sleeve casing; when a mobile phone is matched inside the protective sleeve casing, the position of the photosensitive element corresponds to the position of a flashlight of the mobile phone; and the flashlight of the mobile phone triggers the photosensitive element so as to trigger the control circuit to drive the light-emitting elements to flash. According to the protective sleeve, a design of integration of the flashlight with the protective sleeve of the mobile phone is adopted, so that the protective sleeve is small in size and convenient to carry; the protective sleeve is triggered through the flashlight of the original mobile phone, is quick in reaction speed and synchronizes with the flashlight of the original mobile phone, no software is required to be installed in the mobile phone, and an operation mode is identical with that of the original mobile phone; an independent battery is arranged inside, power supplied to the mobile phone is not affected, when the flashlight does not work, the quiescent current is extremely small, and the working time is greatly prolonged.

The invention relates to an integrated intelligent roadside system for multi-information collection and release. The system comprises a data center, an intelligent main control machine, an environmentsensing module and a vehicle access communication module. The data center is used for receiving updating road testing information of the intelligent main control machine, and the information comprises traffic sensing data and traffic management control data; the intelligent main control machine is used for acquiring, processing and sending the road testing information in real time and is in communication with the data center through an optical fiber or a 4G / 5G microcellular base station network; the environment sensing module is in communication with the intelligent main control machine through a router and comprises a microwave radar, a video camera and a weather environment sensing sensor; the vehicle access communication module is in in communication with the intelligent main control machine through the router and comprises a vehicle-mounted DSRC communication unit and an LTE-V communication unit. Compared with the prior art, the integrated intelligent roadside system has the advantages of being high in collection precision, uniform in function, high in intercommunity, capable of supporting various communication protocols and the like.

The invention discloses a heat pump hot water system and a control method of the heat pump hot water system. The system comprises a controller, a heat pump unit, a water storage tank and a water supply pipeline. The first water outlet end of the water storage tank is communicated with the water inlet end of the heat pump unit to form a first pipeline, and the water storage tank is communicated with the water outlet end of the heat pump unit to form a second pipeline. The water storage tank, the first pipeline, the heat pump unit and the second pipeline are sequentially connected to form a circulating heating loop, and the water supply pipeline, the first pipeline, the heat pump unit and the water storage tank are sequentially connected to form a direct heating loop. The water supply pipeline is provided with a water supply pump, a first electromagnetic two-way valve, a flow sensor and a second electromagnetic two-way valve which are sequentially connected in series, and the first pipeline is provided with a circulating water pump which is electrically connected with the controller. By the adoption of the heat pump hot water system and the control method, the integration of a circulating heating mode and a direct-heating heating mode of a heat pump water heater can be effectively achieved, and the hot water supply capacity of the heat pump water heater is improved, so that improvement of the use comfort of users is facilitated.

The invention discloses a method for implementing embedded system based virtual machine on a set-top box, which includes steps of generating corresponding compiling scripts on the basis of different platforms, compiling corresponding QT graphic libraries, appointing corresponding platforms when compiling the compiling scripts of the QT graphic libraries, transplanting the QT graphic libraries to QT graphic libraries in higher versions, transplanting commands and file reading manners of a central processing unit (CPU) at the bottom level of the virtual machine, compiling and generating Java virtual machine programs adaptive to the different platforms, and running value added services on the set-top box by calling the Java virtual machine programs. The method is capable of realizing the embedded system based virtual machine on the set-top box, the requirements of the embedded system for performance and space can be met, development and maintenance are simple, functions are unified, research and development workload due to the different platforms is reduced and development and maintenance cost is reduced.

The invention relates to an electric vehicle power battery heat management device based on a semiconductor refrigeration technology. The electric vehicle power battery heat management device is arranged in a battery cell module, and a gap is reserved between the heat management device and the battery cell. The electric vehicle power battery heat management device comprises a semiconductor chillingplate, two fixedly connected radiators, a controller and heat-conducting elements, wherein heat or cold produced by the semiconductor chilling plate is uniformly distributed on the radiators by virtue of the heat-conducting elements; the two radiators are respectively arranged at a heat end and a cold end of the semiconductor chilling plate; a plurality of heat-conducting elements are respectively connected between the heat ends or cold ends of the radiators and the semiconductor chilling plate in a pressing manner; and the controller is connected with the semiconductor chilling plate by a wire and controls the semiconductor chilling plate to be heated or chilled by switching the voltage polarity. According to the electric vehicle power battery heat management device disclosed by the invention, with the adoption of a semiconductor electronic technology, heating and cooling functions are realized by switching the voltage polarity, and the two radiators are respectively arranged on twoside faces of the semiconductor chilling plate, so that the heat transfer efficiency is improved. Moreover, the heat-conducting elements are respectively connected between the radiators and the semiconductor chilling plate in a pressing manner, and the heat-conducting efficiency between the semiconductor chilling plate and the radiators is improved.

The invention relates to a pedestrian crossing control system and method based on upstream-downstream signal intersection coordination. Timely response to road segment pedestrian crossing can be ensured, trunk line coordination effect of adjacent upstream-downstream signal intersections can be guaranteed, reminding of pedestrian crossing waiting passing countdown can be realized to assist pedestrians in safe crossing, and impact on trunk line coordination control effect is reduced. The system comprises a pedestrian crossing signal triggering device, signal countdown equipment, a signal machinecontrol subsystem and a central optimized control subsystem. When receiving a pedestrian crossing request signal, the signal machine control subsystem sends information to the central optimized control subsystem, the central optimized control subsystem generates pedestrian crossing signal timing plan information and countdown information in real time, and the signal machine control subsystem controls on-off and lamp color conversion of signal lamps according to the pedestrian crossing signal timing plan information and forwards the countdown information to signal countdown equipment for display.

The invention discloses a mode switch control method of a hot water system of a heat pump. The method comprises the following steps: when the hot water system of the heat pump operates, keeping a heatpump unit in a started state; when the hot water system operates in a circulating heating mode, starting a circulating water pump of a first pipeline and keeping a valve of a water supply pipeline inan opened state, and detecting the current flow of the water supply pipeline in real time; when the current flow of the water supply pipeline is greater than the preset minimum flow, stopping the circulating water pump to switch to a direct heat type heating mode; when the hot water system operates in the direct heat type heating mode, opening the valve of the water supply pipeline and closing the circulating water pump; when a water level switch of a water storage tank is closed, starting the circulating water pump and closing the valve of the water supply pipeline or decreasing the opennessof the valve of the water supply pipeline to switch to the circulating heating mode. The method provided by the invention integrates the circulating and direct heat type heating modes of a hot watermachine of the heat pump effectively and improves the hot water supply ability of the hot water machine of the heat pump, so that the using comfort of a user is improved favorably.

The invention discloses a stabilization method of a diatomite / nanometer TiO2 photocatalytic paint additive. A diatomite / nanometer TiO2 composite material is synthesized by using diatomite and tetrabutyl titanate as raw materials by an in-situ polymerization method. The method comprises the following steps that A, the diatomite, the tetrabutyl titanate and ethyl alcohol are mixed; stirring is performed for dissolution to obtain a mixed solution; B, the temperature is gradually raised, so that the ethyl alcohol is completely volatilized; water is added; then, heating is continuously preformed, so that moisture is volatilized to obtain dry solids; C, the dry solids are washed for many times; heating and drying are performed to obtain dry ingredients; the dry ingredients are calcined to obtain powder, i.e., the diatomite / nanometer TiO2 composite material; D, the diatomite / nanometer TiO2 composite material is infiltrated in a polystyrene solution; filtering and drying are performed, so that a polystyrene protection layer is formed on the surface of the composite materia, and the product of the diatomite / nanometer TiO2 photocatalytic coating additive is obtained. The composite material with a good formaldehyde removal function can be prepared by the method provided by the invention.

The invention discloses a warp knitted cotton lycra fabric, further discloses a preparation process of the fabric, aiming at providing the warp knitted cotton lycra fabric with a stable structure and good elasticity. The warp knitted cotton lycra fabric is characterized in that: the fabric consists of the following components by mass: 12-28% cotton yarn, 18-36% spandex and 50-70% nylon filament. The preparation process comprises beaming, weaving and dyeing and finishing, wherein in the single comb texture structure during the beaming and weaving, the comb of the GB1 comb is nylon filament, the comb of the GB2 comb is spandex, GB3 comb is spandex and GB4 comb adopts nylon filament wrapped cotton yarn. The warp knitted cotton lycra fabric disclosed by the invention belongs to the technical field of textile, and can be used for making corsets.

The invention discloses an early warming emergency linkage mechanism implementation frame based on a CAP (Common Alerting protocol), which provides supports of system communication, data exchange and information aggregation based on distributed multi-channel early warning information issuing. On the base of CAP1.0 (Common Alerting protocol 01), the frame defines a data exchange format, a data communication encryption and decryption mode and a data collection and aggregation mode, provides conversion support for multiple early warning information content formats by adopting a converged communication gateway technology and realizes automatic conversion of information formats required by multiple issuing channels; due to adoption of a message queue technology, all information can be safely and reliably transmitted, and information issuing and monitoring measures can be provided. The usability, the monitorability and the manageability of all parts of an emergency linkage platform can be ensured trough a tcp / ip long connection mode; the communication security is guaranteed through a digital certificate encryption and decryption mode. The frame provides early warning support guarantee for weather, earthquake, public health and various other emergent events.

The invention relates to a communication terminal construction method and system, in particular to a method and system for constructing a virtual communication machine. The virtual communication machine is software which is installed in a computer system and has a communication function. The method and system for constructing the virtual communication machine are characterized in that the system comprises a communication system, a number mapping server, a network server, a communication machine and a communication machine client side, and the number mapping server is used for mapping incoming call numbers and outgoing numbers of the communication system onto the network server immediately, or mapping incoming call numbers or identifications and outgoing numbers or identifications of the communication machine client side onto the communication system immediately. The method and system for constructing the virtual communication machine have the advantages that the existing communication system and number sources are utilized, communication machine client side software is installed by means of the all-purpose computer system, the corresponding network server is arranged, and then communication using the numbers and communication lines in an original communication system can be achieved by means of the all-purpose computer system any time anywhere for a user.

The present invention relates to a device for setting working nip on a spinning room preparation machine, particularly a flat card, a roller card, etc. The device is provided with a roller, such as a cylinder which has a cylindrical clothed wall surface, and to have, located opposite the roller clothing and spaced apart radially therefrom, clothed and / or non-clothed movable or fixed machine elements and two fixed lateral holding devices (side screens), in which setting bends are provided as supporting elements for the machine elements, which setting bends are associated with the lateral holding devices, the setting bends being used for setting the working nip and positioning devices being associated with the setting bends, wherein the latera] holding device and at least one associated setting bend are in the form of a one-piece component and the setting bend is divided into individual separate sections, the component having between holding device and setting bend through-openings in or between which flexible positioning elements for the setting bend are arranged.

The invention provides a multifunctional composite supermolecule nanofiber self-assembly system and application thereof. The multifunctional composite supermolecule nanofiber self-assembly system is characterized by comprising at least one FUS LC combined with a functional protein R. The FUS LC can be combined with various functional proteins through gene engineering without influencing the capacity of assembling fiber, and the amyloid protein can realize structure controllability and functional diversification through slow fiber growth capacity and diversified functional proteins.

The invention relates to an optical channel property on-line detecting module, which comprises: an input optical fiber which is a standard single-mode optical fiber; a base which is a rectangle plate; a collimation lens with an interface of optical fiber input while said input optical fiber is connected to said optical fiber input interface and said collimation lens is fixed at one side of base; a grating table which is trapeziform and its middle has one rectangle groove; said grating table is fixed on the base at one end of collimation lens; a diaphragm whose two surface form right angle while its has a light inlet and a light outlet; said diaphragm is fixed at the outer side of groove of grating table; a solid holographic grating fixed inside the groove of grating table; a light receive interface fixed on the base at one side of collimation lens; a photodetection detecting array fixed at the end of light receive interface; and a top cover which is a rectangle frame covering the base and fixed on the base.

The invention relates to an all-ceramic tooth preparation method based on a facial and oral dentition three-dimensional scanning technology. The method comprises the following steps: carrying out spatial three-dimensional registration on facial three-dimensional data and dentition three-dimensional data of a patient through a plurality of feature points on the surfaces of teeth and gingiva of thepatient; designing a lip surface three-dimensional form of the upper anterior teeth and / or the lower anterior teeth to enable the tooth protrusion and the incisor curve to accord with the upper lip shape and the lower lip shape of the patient; copying the three-dimensional shapes of the tongue surface of the original upper anterior tooth and the incisor end of the lower anterior tooth of the patient, and adjusting the three-dimensional shapes so that the forward extension and lateral movement tracks of the lower anterior tooth of the patient accord with the leading characteristics of the patient before repair to obtain a lingual three-dimensional shape; performing data fusion on the lip surface three-dimensional form and the lingual side three-dimensional form to form a three-dimensional digital model with an expected repair effect; and performing three-dimensional printing based on the three-dimensional digital model with the expected repair effect to obtain a resin model, and preparing the all-ceramic tooth according to the obtained resin model. Real three-dimensional aesthetic design can be carried out for the patient.

The invention relates to the technical field of biomedical engineering, A method for design porous structure base on structural morphology and mechanical properties of bone trabecula comprises that following step: (1) establishing a three-dimensional model of bone trabecula, (2) solving morphological parameters of bone trabecula, (3) deriving a bone trabecula mesh model, (4) calculating mechanicalproperties of bone trabecula, (5) optimizing the solution of the porous model, and (6) reducing solid structure. The invention considers the structural shape characteristics and mechanical propertiesof the real bone trabecula, realizes the unification of structure and function of the designed porous structure, greatly reduces the calculation amount and complexity in the design, is easy to be processed in the later stage, and provides the basis and method for the replacement treatment of the implant of bone diseases.

A system for operation and maintenance of network devices, including a device layer including at least one network device and a pre-processing layer including pre-processing device(s); the network device obtains a CDR of a call and transmits the CDR to the pre-processing device; the pre-processing device filters the CDR and performs centralized operation and maintenance of network devices. The network device forming the device layer, the pre-processing device forming the pre-processing layer and a method for operation and maintenance of network devices in the above system are also provided. Through the technical scheme, call services are separated from operation and maintenance management and functions of the network devices are unified, which results in more stable operation of the network devices; the operation and maintenance management will be more flexible and it becomes easier to monitor the whole network and to perform operation and maintenance of network devices.

A coin washing machine remote controlled by a CDMA cell phone includes a washing machine, coin counting device and CPU. The CPU with built-in control program is connected to the coin counting device and washing machine. The CDMA cell phone is linked to CPU through a communication unit. A store unit linked to CPU is to store the washing program, protocol between CPU and coin counting device and between CPU and CDMA cell phone. A display unit linked to CPU is to display various washing program, index and time, and charging rate. This invention makes it available for remote control of charging rate and washing program.

The invention belongs to the technical field of sewing machines and particularly relates to a novel cloth strip cutting mechanism. The mechanism comprises a sewing table cover plate, a rotation seat shaft is arranged on the bottom plane of the sewing table cover plate, a movable cutter is arranged at one end of the rotation seat shaft, the other end is connected with a driver through a transmission unit, and the movable cutter can stretch out of the upper plane of the sewing table cover plate. A fixed cutter is arranged on the sewing table cover plate, and the movable cutter is arranged on one side of the fixed cutter. The driver drives the transmission unit to act to drive the rotation seat shaft and the movable cutter to rotate, and the fixed cutter and the movable cutter form a scissor structure. According to the mechanism, the movable cutter is disposed below the sewing table cover plate when the movable cutter do not perform cloth cutting actions, and cloth can pass smoothly during roll hem, elastic cord and the like sewing or during cover sewing and splicing sewing of two pieces of large-area cloth, so that the universality is high, equipment or parts are not needed to be changed, the enterprise production cost is reduced, the cloth strip cutting function and the thread braid cutting function are integrated, and the machine is multipurpose.

The coin box comprises a slide push-lid for closing the coin cavity and taking out coins, which has a coin-pushing tenon and a coin upper-limit rib for keeping the height difference of coin top and tenon top a certain value, a force-bearing lid held in hand when pushing the slide push-lid, a coin-cavity main pieces for forming the coin-cavity and being as the mounting seat of a resetting spring, a coin holding seat, a lifting spring for lifting coins, a support seat with a two-way cord-tieing part and as a main bearing component for integral mounting, a resetting spring for resetting the slide push-lid to make coins not fall off and conceal the coin cavity. Advantage: convenient carrying about and accessing of coins.

The invention discloses a parking location guide and management system based on a CAN bus, which comprises an entrance control module, a parking location detection module, a parking location guide and counting module, an exit control module and an upper computer; the entrance control module controls an entrance road blocking machine, recognizes and receives car license plate information and drives a parking location information display screen; the parking location detection module detects the use and distribution condition of parking locations in a real-time manner; the parking location counting and guide module is used for the parking location counting and parking location guide, and a parking location is determined by the instruction of a guide board; the exit control module controls the exit road blocking machine, and recognizes the car license plate information and starts a charging system; and the upper computer manages and monitors the operation of the whole system. The parking location guide and management system realizes the functions of the real-time parking locations counting, the automatic parking location guide and accurate charging of a parking space, etc., which greatly reduces the manpower cost and guarantees the parking convenience and charging reliability; and the functions of the CAN parking location guide and management system can be customized according to the needs of customers and have strong expandability.

The invention relates to a manufacturing method of cast porcelain dental veneer, comprising the following steps: constructing a diagnostic model by digital three-dimensional technology, and making the diagnostic model by means of three-dimensional printing; making a diagnostic model for a patient based on the diagnostic model using a temporary crown material Veneering; on the basis of the diagnostic veneer, perform tooth preparation, impression taking, and superhard plaster filling of the patient to obtain a working model, and perform three-dimensional scanning and centric occlusal registration on the working model; the work after tooth preparation The spatial registration of the model and the diagnostic model is carried out so that the two models are completely consistent in the posterior region, and the edge line of each preparation is constructed in the difference area of ​​the anterior labial surface by using the NURBs curve; The veneer is directly used for lost-wax casting to obtain a veneer made of cast porcelain material. The cast porcelain tooth veneer made by the invention achieves the unity of appearance and function after restoration.