59results about How to "Unlimited time" patented technology

The invention discloses a method for realizing mobile payment in mobile internet sales, which comprises that: firstly, a user installs a payment client with a mobile phone with a financial IC card bound with bank card information; secondly, a mobile payment platform receives a shopping order after the user shops on a mobile internet sales platform and transmits a shopping bill through the payment client, and the user pays the shopping bill on the mobile phone; thirdly, the payment client realizes the payment and then transmits payment information to the mobile payment platform; fourthly, the mobile payment platform checks the payment information and then transmits the payment information to the mobile internet sales platform; and finally, the mobile internet sales platform transmits a payment success message to the mobile payment platform and the user to finish the payment. The method has the advantages of simplifying a payment flow in a mobile internet sale mode, enabling the user to conveniently and fast finish payment operation or find a paying agent, making secure the operation process, realizing timely payment anytime anywhere and avoiding risks in capital.

The invention discloses an automatic thin-long workpiece conveying device which comprises an inclined storage hopper (2), a support (1), a feeding mechanism, a conveying mechanism and a loading mechanism. The conveying mechanism comprises fixed groove plates (7), sliding groove plates (6), a conveying guide rail (13), lifting air cylinders (12) and a transferring air cylinder (14), the fixed groove plates (7) are fixed to the support (1), the lifting air cylinders (12) are fixed to the groove bottoms of the fixed groove plates (7), the conveying guide rail (13) is fixed to the lifting air cylinders (12), the sliding groove plate (6) is arranged on the conveying guide rail (13), the transferring air cylinder (14) is fixed to the conveying guide rail (13) and connected with the sliding groove plate (6), clamping grooves for supporting workpieces (5) are evenly distributed on the fixed groove plates (7), and the sliding groove plate (6) is provided with clamping grooves which are coincident with the clamping grooves in the fixed groove plates (7) and used for transferring the workpieces (5). After the structure is adopted, the automatic thin-long workpiece conveying device has the advantages of being simple and reasonable in structure, convenient to operate and use, high in machining speed and working efficiency, free of limitation of time, low in production cost, high in working safety and the like.

The invention discloses a solar ultrasonic fluorescent sweet-and-sour-taste pest trapping method and a solar ultrasonic fluorescent sweet-and-sour-taste pest trapping device. The middle part of the top surface of a base is fixedly connected with the bottom end of a vertically-upward main support; a solar panel is arranged at the top end of the main support; a parallel support and a tray support below the parallel support are fixedly connected to the middle section of the main support; a pest trapping lamp is hung on the parallel support; a feeding device and an evaporating device are arranged on the tray support; a cylindrical communicator is fixedly arranged at the bottom of an inner cavity of a feeding container of the feeding device for containing sweet-and-sour liquid; a floater is arranged inside the communicator; a photoelectric sensor is fixedly arranged at the bottom outside the feeding container; an evaporating container of the evaporating device and the feeding container are connected through a connecting pipeline; a manual switch is arranged on the connecting pipeline; an ultrasonic transducer sheet is fixedly arranged at the bottom of an inner cavity of the evaporating container; an air draft box near the pest trapping lamp is arranged at an evaporating port in the top of the evaporating container. The ultrasonic transducer sheet atomizes liquid into fine particles and the air draft box distributes water mist around the pest trapping lamp, so that the pest trapping efficiency is improved.

The invention discloses a method for manufacturing an adjustable liver injury animal model and special carriers thereof. The invention provides two special carriers; one is obtained by inserting DNA fragments formed by sequentially connecting tetracycline reacting factors, promoters and pro-urokinase activator coding genes of a Tet-off / Tet-on gene expression system from the upper stream to the lower stream into the multiple cloning sites of an eukaryotic expression carrier; and the other one is obtained by inserting DNA fragments formed by sequentially connecting liver special promoters and antisense tetracycline activator coding genes of a Tet-on gene expression system from the upper stream to the lower stream into the multiple cloning sites of an eukaryotic expression carrier. The two special carriers re implanted into the animal bodies for obtaining a double-positive transgenic animal model, and the expression time and the expression quantity of uPA genes in the liver cells of the animal model are adjusted through the induction of doxycline, thereby the time and the degree of the liver injury can be manually controlled according to demands.

The invention discloses a live line measurement device for the oil level of an expansion tank of an oil-immersed transformer. The live line measurement device comprises an upper-section measuring rod, a middle-section measuring rod, a lower-section measuring rod, a float, a tripod and a hose. The upper-section measuring rod, the middle-section measuring rod and the lower-section measuring rod are hollow insulation rods and are detachably connected to form a hollow straight rod, the float is arranged in the hollow straight rod, the tail end of the bottom of the lower-section measuring rod is fixed to the top of the tripod and connected with one end of the hose, the other end of the hose is connected with an oil injection and drain valve of the oil-immersed transformer through a connection port, and the side face of the upper-section measuring rod is provided with scale marks and a corresponding observation window. According to the principle of communicating vessels, the live line measurement device can be used for measuring the actual height of the oil level in the expansion tank of the transformer accurately, and is simple to operate, convenient to carry and good in safety.

The invention discloses a method of detecting viral sources in a cloud storage environment. The method includes: acquiring the type of a file contaminated; creating a file of the same type in a locale, and calculating a HASH value of the file; copying the created file to a storage, as a lure file; traversing files visited by all processes on a storage access node; if the lure file is opened by the processes, immediately recording an IP (internal protocol) address of a visiting host, and displaying the IP address on a terminal; calculating the HASH value of the lure file, and if the HASH value changes, writing the IP address of the host to a specified text file; isolating the host with the IP address; restoring the original lure file, and continuing to collecting other viral source hosts. The method has the advantages of detection accurateness and high efficiency.

The invention discloses an online training method for realizing differentiation on customer service personnel, and relates to the field of customer service quality inspection and customer service training. The method comprises the steps of S1, carrying out quality inspection on the customer service personnel, and extracting problems in the quality inspection; S2, performing statistics on the specific types of the problems generated in the quality inspection of the customer service personnel; S3, according to different types of the quality inspection problems generated by the customer service personnel, marking the customer service personnel; S4, summarizing the quality inspection problems generated by the customer service personnel in a training system; S5, transmitting the updated qualitycontrol problems to a database by the training system, then obtaining solutions corresponding to the updated quality inspection problems from the database, and storing the updated quality control problems and the solutions in the training system in a one-to-one correspondence mode; and S6, finishing online training of the customer service personnel through the training system. The method solves the problem of poor training effect due to the fact that the customer service personnel cannot be flexibly trained according to actual knowledge mastery amounts and free time of the customer service personnel in an existing offline training method.

The invention relates to an inversely-constructed underground continues wall with a siamesed reinforcing cage. The continues wall comprises the siamesed reinforcing cage and has no plain concrete region, thereby having no crack (the whole wall is penetrated through by the crack so as to be ruptured) and water leakage; the reinforcing cage is not suspended in a deep groove by means of integral forming but welded in the ditched deep groove, so that the continues wall does not need a heavy type crawler crane and the like, thereby reducing the construction cost; and the bottom end of a precast pile has been penetrated into a supporting layer of the soil, and the soil side pressure applied to the continues wall is finally borne by the piles, so that the wall among the piles does not need to be penetrated under a foundation pit of the main structure of a building to be built, thereby saving a mount of materials.

The invention provides a health assessment method and device based on doctor-seeing data. The method comprises the steps: obtaining current doctor-seeing data and historical doctor-seeing data of a patient and assessment indexes for the current doctor-seeing data and the historical doctor-seeing data; establishing a multi-level analysis model according to the historical doctor-seeing data and theassessment indexes; inputting the current doctor-seeing data of the patient into the multi-level analysis model, and outputting a total score value corresponding to the patient; and under the condition that the total score value is within the abnormal score value range, generating first early warning information and displaying the information. According to the invention, the current doctor-seeingdata of the patient can be associated with the historical doctor-seeing data, so that health assessment accuracy is improved; and in addition, before the next health assessment is carried out on the patient, the time and the content of the next health assessment plan are adjusted according to the current doctor-seeing data, so that the health assessment is not limited to fixed time, and the requirements of the patient can be better met.

The invention discloses domestic automatic hand washing equipment, which comprises a hand washing table, a faucet, a liquid soap bibcock, a sliding temperature adjusting element, a water treatment device, an atomization device and a temperature adjusting device, wherein the sliding temperature adjusting element is arranged on the hand washing table; the water treatment device and the atomization device are arranged under the hand washing table; the temperature adjusting device is arranged at the lower end of the hand washing table and is connected with the lower end of the sliding temperature adjusting element; the sliding temperature adjusting element is made of heat conducting materials; the lower end surface of the hand washing table is provided with a laser distance meter; one side, near the laser distance meter, of the lower part of a handle part is fixedly connected with a light reflecting plate in vertical arrangement; the water treatment device comprises a box body, a cooling device and a heater; the atomization device comprises a case, a liquid soap piston cylinder arranged in the case and a water box positioned under the liquid soap piston cylinder. In the use process, a user senses the temperature through the hand put on the handle part; the handle part positioned on the table surface of the hand washing table is moved until the temperature is proper, and the hand is put in a position under a water outlet of the faucet.

The invention relates to a medical teaching instrument, in particular to a surgical training box and a training method thereof. The surgical training box comprises a box body and a box cover. Partition plates capable of dividing the box body into at least three boxes for containing surgical instruments for surgery are further arranged in the box body. A training simulation platform for the surgeryis further mounted on the bottom face of the box cover, a baffle capable of sealing the box body is further mounted on one side of the training simulation platform, and the training simulation platform comprises an incision training simulation region, a suture training simulation region and a knotting training simulation region which are sequentially arranged on the bottom face of the box cover.The surgical training method includes the following working steps of 1, training of surgical scissors; 2, training of surgical tweezers; 3, comprehensive training of the surgical scissors and the surgical tweezers; 4, incision surgery training; 5, suture surgery training; 6, knotting surgery training. The surgical training box and the training method thereof have the advantages of being simple instructure, comprehensive in function, good in use effect, high in adaptability and the like.

The invention provides an automobile having a semi-automatic error correction brake system with an external rotor type fixed-rotation angle electromagnetic valve, belonging to a semi-automatic safety automobile capable of changing the operation of mistaken stepping on the accelerator into an operation of automatic braking or manual reset. The sensor of the error correction brake system is arranged in a position in the vicinity of an accelerator pedal; a digging rope is connected to the outer surface of the externally sleeved rotor of the externally sleeved rotor type fixed-rotation angle electromagnetic valve of the error correction brake system and the other end of the digging rope is connected to the accelerator pedal and a brake linkage device, so that the automobile having the error correction brake system is realized. The automobile having the semi-automatic error correction brake system with the external rotor type fixed-rotation angle electromagnetic valve has the following advantages that the speed of response from the discovery of the operation of mistaken stepping on the accelerator to correction into a braking action is high, so that car crashes caused by mistaken stepping on the accelerator can be prevented; and the electromagnetic valve driving the brake is accurate in action, and capable of realizing full-automatic error correction braking starting, and also capable of keeping the braking state for a long time without a locked rotor problem and without consuming power; and the automobile is capable of recovering normal running until a driver manually recovers the state of the system before start.

The invention provides to a preservation method of freshly squeezed wet rice vermicelli, including the following steps: putting freshly squeezed wet rice vermicelli into a food-grade acid solution foracid leaching, and removing for draining; evenly mixing the wet rice vermicelli with a vegetable oil; putting the wet rice vermicelli into a high-temperature cooking bag (the cooking bag is not sealed, and the bag opening is reserved with a 2-5 cm sealing gap), and performing microwave sterilization; after the microwave sterilization, performing vacuum sealing on the cooking bag within 5 s; putting the sealed cooking bag into a thermostatic water bath, and performing water bath sterilization; and removing the cooking bag, and cool to obtain a finished product. This method may avoid the defectof cooking bag breakage due to hot steam produced by the microwave sterilization, and the sterilization is more thorough; on the one hand, the hot steam produced in the cooking bag makes the pressureinside the bag higher than the external pressure, preventing the entry of the air with bacteria outside the bag to cause secondary pollution; and on the other hand, the expanded hot steam in the cooking bag effectively kills the microorganisms in every corner of the cooking bag, effectively inhibiting the activity of miscellaneous bacteria, and prolonging the shelf life of the product.

The invention discloses a method for measuring and analyzing the measurement error of a biomimetic polarized navigation carrier. The method comprises the following steps: (1) arranging a plurality of carriers in a preset area, obtaining the relative azimuth angles between carriers, and taking the relative azimuth angles as the baseline of measuring true value of biomimetic polarized navigation carriers; (2) subjecting each carrier to t-th power azimuth angle measurement and calculation to obtain a set of measured azimuth angle values; (3) changing the preset area, rearranging the carriers, and repeating the step (2) to obtain another set of measured azimuth angle values; (4) repeating step (3) for several times, then calculating the data obtained in the step (2) and (3) to obtain the statistic error (L'kjt) of each carrier; (5) calculating the statistic error (L'kjt) obtained in the step (4), separating the random errors and instrument errors, and evaluating the error of the biomimetic polarized navigation carrier according to the error parameter values of random errors and instrument errors. The provided method can complete large and complicated calculation task high efficiently.

The invention relates to an anti-pressure artificial stone. The stone is composed of, by weight, 80-93 parts of white cement, 12-18 parts of unsaturated resin, 24-28 parts of silica powder, 0.08-0.8 part of curing agent, 11-22 parts of metakaolin, 0.4-0.96 part of accelerant, 34-45 parts of silica fume, 40-46 parts of powdery filler, 41-53 parts of water, 60-66 parts of natural stone particles, 6-9 parts of water reducer, 23-43 parts of hollow glass microspheres, 3-5 parts of pigment and 2-3 parts of dye. The stone has the advantages that the stone is in a powdery state in mold distribution, distribution is very easy and uniform, time is not limited, soft melting bonding begins when pressure forming after distribution, patterns of the surface of a board is controllable and uniform, the density of every part of the board is uniform, stress is uniform, and deformation is not likely to happen, so that the requirements on the rigidity and the thickness are greatly improved.

The invention belongs to the technical field of robots and relates to a robot voice test method and device, a readable storage medium and terminal equipment which are applied to a voice test system comprising a tested robot and an auxiliary robot, wherein the tested robot is a robot tested by the robot voice test method, the auxiliary robot is a robot which passes the voice test. The robot voice test method comprises the following steps of: setting a test type of the tested robot, and setting a task type of the auxiliary robot according to the test type; controlling the tested robot and the auxiliary robot to perform voice interaction according to the test type and the task type, and obtaining a voice interaction result; and comparing the voice interaction result with a preset interaction result to obtain the voice test result of the tested robot in the test type. Thus, the manpower in the robot voice test can be effectively reduced, the test efficiency can be improved, the test error caused by manual test can be avoided, and the accuracy of the test result can be improved.

The invention discloses automatic washing equipment. The equipment comprises a wash basin, a faucet and a hand sanitizer faucet, a slide temperature adjustment piece mounted on the wash basin, a watertreatment device, a hand sanitizer mixing device and a temperature adjustment device, wherein the water treatment device and the hand sanitizer mixing device are mounted below the wash basin; the temperature adjustment device is mounted at the lower end of the wash basin and connected with the lower end of the slide temperature adjustment piece; the slide temperature adjustment piece is made froma heat conducting material; a slide rheostat is mounted on the lower end face of the wash basin; one side, close to the slide rheostat, of the lower part of a handle part is fixedly connected with arheostat connecting plate arranged vertically; the water treatment device comprises a box body and a heater; the hand sanitizer mixing device comprises a housing, a hand sanitizer piston barrel mounted in the housing and a water tank located below the hand sanitizer piston barrel; and when the equipment is in use, a user senses a temperature via a hand put on the handle part, moves the handle partlocated on the surface of the wash basin till the temperature is appropriate and puts the hand below a water outlet of the faucet.

The invention discloses automatic washing equipment which comprises a washing table, a water faucet, a liquid soap faucet, a sliding temperature adjustment piece mounted on the washing table, a water treatment device and a liquid soap mixing device which are mounted below the washing table, and a temperature adjustment device which is mounted at the lower end of the washing table and is connected with the lower end of the sliding temperature adjustment piece, wherein the sliding temperature adjustment piece is a heat conduction material; a sliding rheostat is mounted on the lower end surface of the washing table; one side, close to the sliding rheostat, of the lower part of a handle part is fixedly connected with a vertically arranged rheostat connection plate; the water treatment device comprises a tank body and a heater; the liquid soap mixing device comprises a shell, a liquid soap piston tube mounted in the shell and a water tank located below the liquid soap piston tube. During use, a user feels the temperature with a hand on the handle part, removes the handle part located on the table top of the washing table and puts the hand at a position below a water outlet of the water faucet when the handle part is removed properly.

The embodiment of the invention provides a method and a system for coping with a live broadcast flow burst. The method comprises the following steps: monitoring and acquiring abnormal frequency of a live broadcast service back end about live broadcast service response in real time; and when a popularity live broadcast watching request initiated by a user is obtained, comparing the abnormal frequency of the live broadcast service back end about the live broadcast service response with a preset first threshold, and forwarding the popularity live broadcast watching request to the live broadcast service back end or the proxy unit according to a comparison result. The method is not limited by capacity expansion time, machine reserve and cost, and maximum availability guarantee is provided; whenabnormal flow bursts, a system at the rear end can be effectively protected, and the avalanche effect is avoided.

The invention provides a radionuclide labelled specific sentinel node photographic developer and a preparation method thereof and belongs to the technical field of radioactive drug labeling and nuclear medicine. The radionuclide labelled specific sentinel node photographic developer provided by the invention is prepared by the following steps: by taking a rituximab monoantibody as a parent, separating, purifying and reducing the rituximab monoantibody to obtain a photographic developer precursor; preparing the precursor into a medicine box, wherein the storage life can reach 24 months; carrying out 99mTc radionuclide labeling on the photographic developer precursor to obtain the specific sentinel node photographic developer drug 99mTc-SLN-F, wherein the labeling rate is equal to or greater than 95%. The photographic developer prepared can precisely position the specific sentinel node, the development and biopsy times are not limited, and the photographic developer can develop well in a time interval of 30 minutes to 24 hours after injection. In addition, the photographic developer is low in uptake in a secondary lymph gland and low in retention at injection points. The photographic developer has a good application prospect in treating and diagnosing breast cancer.

The present invention provides a method for producing a chemically toughened glass having a deep depth of compression (DOC) and a high surface strength without decreasing the strength of the glass even if the glass has been subjected to a chemical toughening treatment at a high temperature for a long period of time. The present invention relates to a method for producing a chemically toughened glass, which comprises a chemical toughening step wherein a glass is brought into contact with an inorganic salt for ion exchange, said inorganic salt containing at least one of sodium nitrate and potassium nitrate and having a hydrogen ion index (pH) of from 7.5 to 10.5 (inclusive) when formed into a 10% by mass aqueous solution; and an acid treatment step wherein the glass after the chemical toughening step is brought into contact with an acidic solution for an acid treatment, said acidic solution having a hydrogen ion index (pH) of less than 7.0.

The invention provides a direct drinking water control system and method capable of identifying user identity and controlling water quantity. The direct drinking water control system and method is characterized in that hot water temperature is set through a touch screen, a temperature controller controls an instant heater to heat direct drinking water in the instant heater to the temperature set by a user, the fingerprint information of the user is collected through a fingerprint identifier, the collected user fingerprint information is compared with reserved fingerprint information stored ina server, the server orders the controller to open a first electromagnetic water discharge control valve or a second electromagnetic water discharge control valve if the information is consistent, hotwater or normal-temperature water is discharged from a spout, the user moves the finger away from the fingerprint identifier when the required quantity of water is received, the server orders the controller to close the first electromagnetic water discharge control valve or the second electromagnetic water discharge control valve, the spout stops discharging water, the first electromagnetic waterdischarge control valve or the second electromagnetic water discharge control valve transmits the metered water quantity to the server through the controller, and the server deducts the water fee from the user's deposited money in the server according to the water quantity.

The invention relates to an anti-slipping artificial stone. The anti-slipping artificial stone is prepared from the following components in parts by weight: 18 to 21 parts of low-melting glass powder,40 parts of resin, 44 to 57 parts of quartz sand, 30 parts of inorganic matter aggregates, 16 to 21 parts of quartz powder, 20 parts of middling flour, 2 to 6 parts of an accelerant, 5 parts of low-melting glass powder, 41 to 53 parts of water, 3 to 4 parts of an emulsion adhesive, 6 to 9 parts of a water reducing agent, 23 to 43 parts of hollow glass microspheres, 3 to 5 parts of a pigment and 2to 3 parts of a dyestuff. The anti-slipping artificial stone provided by the invention has the advantages that various materials are prepared to form an artificial quartz stone with an extremely goodline effect.

The invention discloses a household intelligent hand washing device. The household intelligent hand washing device comprises a hand washing table, a water faucet fixedly mounted on the hand washing table, a temperature regulating and rotating part rotatably mounted on the hand washing table, a water treatment device and a liquid soap mixing device, wherein the water treatment device and the liquidsoap mixing device are mounted under the hand washing table; the lower end of the temperature regulating and rotating part is connected with a temperature regulating device; the liquid soap mixing device comprises a shell, a liquid soap piston cylinder and a water tank; the temperature regulating device comprises a cylindrical mounting shell and a U-shaped fixed seat fixedly connected to the lower part of the hand washing table and located at the outer side of the mounting shell; the inner wall of the mounting shell is in sliding connection with an electric pushing rod; a rotating rheostat isfixedly connected with the bottom surface of the U-shaped fixed seat; the water treatment device comprises a heater. When the household intelligent hand washing device is used, a user senses the temperature by a hand placed on a knob part, then rotates the knob part located on the tabletop of the hand washing table and puts the hands under a position under a water outlet of the water faucet untilthe temperature is suitable.

The invention belongs to the technical field of plant molecular markers, and particularly relates to a SCAR marker and method for early identification of a tomato internode length. The SCAR marker TTHH-F0R0 for early identification of the tomato internode length has nucleotide sequences shown as SEQ ID No. 1 and SEQ ID No. 2. The invention further provides an amplification primer pair of the SCAR marker and the method for early identification of the tomato internode length. The SCAR marker closely linked with the tomato internode length is obtained through identification. When the marker is adopted for identification, a plant type condition of the tomato internode length can be accurately and rapidly identified in a seedling stage rather than a stage in which a tomato plant type is stable, and a selective breeding process of tomato varieties with excellent plant types can be greatly accelerated. According to a SCAR marker primer, enzyme digestion is not needed, and only PCR one-step detection is needed, so that the advantages of low detection cost, high accuracy and the like are achieved, and the SCAR marker can be well used as the molecular marker for assisting in selective breeding of tomato internode plant types.

The invention provides an automobile having an error correction brake system with an internal rotor type fixed-rotation angle electromagnetic valve, belonging to an automobile which is capable of changing the manual operation of mistaken stepping on the accelerator into automatic braking by means of the error correction brake system. The sensor of the error correction brake system is arranged in a position in the vicinity of an accelerator pedal; a digging rope is connected to the outer surface of the internal forked rotor of the internal forked rotor type fixed-rotation angle electromagnetic valve of the error correction brake system and the other end of the digging rope is connected to the accelerator pedal and a brake linkage device, so that the automobile having the error correction brake system is realized. The automobile having the error correction brake system with the internal rotor type fixed-rotation angle electromagnetic valve has the following advantages that the speed of response from the discovery of mistaken stepping on the accelerator to correction into a braking action is high, so that car crashes caused by mistaken stepping on the accelerator can be prevented; and the electromagnetic valve driving the brake is accurate in action without a locked rotor problem, and capable of keeping the braking state for a long time without consuming power, and also capable of realizing full-automatic error correction braking starting and full automatic reset; and besides, manual reset can be also realized so that the time of the braking state is not limited.

The invention relates to a semi-automatic error correction braking system with an outward rotating solenoid valve having fixed rotation angle, in particular to the semi-automatic error correction braking system which can change an accidental step on an accelerator into an error correction braking. The semi-automatic error correction braking system comprises a sensor, sensor signal analyzer, a control signal amplifier and a power supply controller, which are sequentially connected with one another. The power supply controller is connected with the outer sleeved rotator type solenoid valve having fixed rotation angle and a direct current power supply of the outer sleeved rotator type solenoid valve having fixed rotation angle. The semi-automatic error correction braking system with the outward rotating solenoid valve having fixed rotation angle has the advantages that response speed from detecting the accidental step on the accelerator to correcting the accidental step into braking is fast, the solenoid valve which drives a brake is accurate in operation, full-automatic error correction braking can be achieved with no rotator locking, and a braking state can be maintained for a long time without power consumption until a driver manually restores a state before the system starts.

The invention provides a rapid annealing method of a power device and one power device. The rapid annealing method of the power device comprises the following steps of depositing a metal layer on a first surface of the power device and then depositing a protective layer on the metal layer; carrying out ion implantation on a second surface, carrying out heat annealing processing on the second surface and activating implanted ions; depositing the metal layer on the second surface and removing the protective layer on the first surface. By using a technical scheme of the invention, after a making technology on the first surface of the power device is completed, the protective layer is deposited on the first surface of the power device so that protection to the making technology on the first surface of the power device during an annealing process is realized; power device performance is increased; simultaneously, conventional annealing processing is used and making cost is reduced.