2045results about How to "Meet safety requirements" patented technology

The invention discloses an insecticidal composition containing thiacloprid amide and a biogenic insecticide. The biogenic insecticide is selected from avermectin, emamectin benzoate, spinosad or spinetoram, and the ratio by weight of the thiacloprid amide to the biogenic insecticide is 1:40-40:1. The composition can be prepared into a dosage form which is agriculturally acceptable, such as water dispersible granules, wettable powder, a suspending agent, a dispersible oil suspending agent, a microcapsule suspending agent, missible oil or a micro emulsifier. The insecticidal composition has reasonable ingredients, great insecticide effect and low chemical cost. The activity and the insecticidal effect of the insecticidal composition are not just the simple sum of the activity and the insecticidal effect of all ingredients. Compared with the traditional single preparation, the insecticidal composition not only has remarkable insecticidal effect, but also has remarkable synergistic function, mitigates resistance generation, has small preparation residual quantity and high safety, does not pollute crops and meets the safety requirements of agricultural pesticide preparations. The insecticidal composition disclosed by the invention has better control effects on rice stem borers, vegetable plutella xylostella, beet armyworms, cotton bollworms and apple olethreutid.

The invention discloses an unmanned vehicle dynamic path programming method based on environment uncertainty, comprising steps of establishing a vehicle kinetics model, establishing a dynamic environment model and necessary conditions for anew programming a path, obtaining a motion state original value of the unmanned vehicle, a vehicle motion state original target value and a vehicle motion state candidate target value, generating a candidate path, obtaining an optimal path through selection based on a safety index and a rapidity index, and reprogramming the optimal path of the unmanned vehicle when the unmanned vehicle motion environment satisfies the condition where the new path can be programmed. Compared with the prior art, the invention can not only satisfy the safety requirement for safety driving, but guarantees the driving efficiency under the constraint of the vehicle model. The invention realizes the coordination optimization of the performance index through distribution of various weights, realizes the real-time planning under the condition where a plurality of dynamic obstacles exist, and effectively improves the safety of the unmanned vehicle driving.

The invention relates to a preparation method of a power and energy storage lithium-ion battery. A negative active substance of the power and energy storage lithium-ion battery comprises soft carbon, hard carbon, a mixed material of soft carbon and graphite and a mixed material of hard carbon and graphite. The designing method of the battery comprises the steps of designing the gram volume of the negative active substance as the primary lithium-embedding gram volume, designing the gram volume of the positive active substance as the primary lithium-removal gram volume, designing the ratio of the capacity of the positive electrode and the capacity of the negative electrode to be (1: 1) to (1.5: 1). By adopting the designing method, the capacity and comprehensive performance of the battery can be remarkably improved, and excellent lithium-embedding and lithium-removal capacity of the soft carbon material and the hard carbon material can be adequately exerted. Compared with the existing lithium battery technology, the prepared power lithium battery has long service life, high multiplying power, high safety performance and excellent low-temperature performance and can be widely applied to the fields such as electric tools, various portable devices, spaceflight, starting power supply and the like.

The invention discloses a composite lithium ion battery diaphragm comprising a nonwoven fabric substrate layer, an electrostatic spinning layer and a polymer porous coating, and the structure compound mode is as follows: polymer porous coating / electrostatic spinning layer / nonwoven fabric substrate layer / electrostatic spinning layer / polymer porous coating; nonwoven fabric substrate layer / electrostatic spinning layer / polymer porous coating; or polymer porous coating / nonwoven fabric substrate layer / electrostatic spinning layer / polymer porous coating. The composite lithium ion battery diaphragm uses nonwoven fabric as a substrate to ensure the diaphragm high porosity and heat resistance, electrostatic spinning layers are arranged on the upper and lower surfaces of the nonwoven fabric substrate, the nonwoven fabric pore diameter can be reduced, the pore diameter is uniform, and the problem of short circuit caused by local macropore of the nonwoven fabric diaphragm can be solved, and by the arrangement of the polymer porous coating, the absorption and electrolyte maintaining capacity of the diaphragm can be improved, battery positive and negative electrodes can be bonded, battery mechanical properties can be improved, and the battery safety can be ensured. The prepared composite lithium ion battery diaphragm can satisfy the security requirements of large current charging discharging and running in harsh environments of a high-capacity high-power power battery.

The invention provides a recombinant DNA technology based information encrypting and hiding method and an application. Firstly, a plain text is coded into a DNA sequence, preprocessing is carried out on the DNA sequence by adopting the encryption algorithm, and a pseudo-DNA segment is generated; and then the pseudo-DNA segment and a marker gene segment are connected to a DNA plasmid vector by using the restriction enzyme and the ligase, and an obtained recombinant plasmid is further hided into a germ body; finally, a cell which contains confidential information is hided into a large number of irrelevant pseudo-cells, and the hided cells can be screened out by the selective cultivation. The encrypting and hiding method is applied to the authentication and signature technology. Encrypting, hiding and transmitting of the confidential information are achieved, and the cracking difficulty of a system is enhanced.

The invention provides a method for authenticating a point of sail (POS) file and a method for maintaining an authentication certificate. During the POS file authentication, a two-level certificate management-based POS digital signature scheme is adopted, wherein the first-level certificate is a root certificate and the second-level certificate is a working certificate; the root certificate can authenticate the legality of the working certificate, but cannot authenticate the legality of an application program; and the working certificate can authenticate the legality of downloaded POS software. A POS acquirer head office applies the root certificate and the working certificate from certificate authority (CA), provides a POS acquirer root certificate public key to a terminal manufacturer, performs digital signature to generate a root certificate public key file, returns the root certificate public key file to the head office and then issues the root certificate public key file to each branch office; each POS acquirer branch office receives the root certificate public key file transmitted by the head office; and the POS acquirer head office performs digital signature on a working certificate public key by a root certificate private key to generate a working certificate public key file and issue the working certificate public key file to each branch office. The method for authenticating the POS file and the method for maintaining the authentication certificate have the advantages of contributing to the update and the maintenance of the certificate per se and guaranteeing the authenticity of application software.

The invention discloses a method for realizing cross-management-domain identity and permission information sharing. Various authoritative institutions establish a management information sharing blockchain system together; each authoritative institution constructs a block chain node, participates in establishment of the block chain system, and backs up a block chain ledger; the management system of each authoritative institution is docked with the own block chain node, so that the block chain node is controlled to operate a block chain; in an individual cross-domain access process, the management systems of the authoritative institutions and the block chain nodes perform mutual negotiation; and the management systems of the authoritative institutions perform mutual negotiation. According to the method for realizing cross-management-domain identity and permission information sharing disclosed by the invention, the traditional point-to-point cross-domain management information sharing disadvantages are evaded; credible distributed storage and updating of identity permission management information and behaviour records can be realized; a unified query channel of individual identity permission and behaviour records is provided for the management system of each authoritative institution; and a support is formed for settlement among the management systems of the authoritative institutions.

The present invention relates to computer security technology, and is a client end computer security protecting mechanism established around the certificating server based on software identity certification. The present invention includes: 1. establishing security certificating database with the unique flag code as ID; 2. establishing certificating server for providing software security certificating function with the security certificating database as kernel; 3. establishing security policy for limiting the software running in the client end; 4. monitoring the client end computer and extracting the unique ID and submitting it to the certificating server before starting the executable file; 5. inquiring the security certificating database with the certificating server and feeding back the corresponding security information to the client end computer; and 6. the client end computer judging whether to execute the software. Compared with traditional antivirus method, the present invention has more wide protection.

The invention discloses a refrigeration cooling system under a mine. The refrigeration cooling system comprises a main roadway under the mine or a refrigerating unit of a main roadway equipment cavern, and the refrigerating unit is communicated with a first mine heat exchanging device and a second mine heat exchanging device; the refrigerating unit is a refrigeration circulating system formed by connection of a condenser, an evaporator and a compressor, and the condenser is connected with the second mine heat exchanging unit through a cooling water pump to form a closed cooling-water circulating system; the evaporator is connected with the first mine heat exchanging unit through a refrigerated water pump to form a closed refrigerated-water circulating system. The refrigeration cooling system is simple in structure, low in loss of refrigeration capacity, high in heat exchanging rate and low in operation cost. Being the novel refrigeration cooling system, the refrigeration cooling system can be widely applied to a mine cooling system.

The invention relates to revetment combination system that has cutoff purifying function to the river rainfall runoff surface contaminating material. It sets non-sand concrete curbstone at the intersection of road and bank slope, a catch water channel is set at one side of intersection road, where coarse sand bedding is paved. Crushed stones are filled in the channel, and the top of channel is sealed by non-sand concrete. On the band slope toward water side paves coarse sand, crushed stone of different thickness, and ecology brick. Cement laid stone masonry breast wall is set at basal slope, and growing plant at the bank slope. It increases the residence time for runoff in the system and takes purification to it.

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

The invention discloses an agricultural sterilizing composite containing thifluzamide, which is a sterilizing composite containing a first active ingredient thifluzamide, second active ingredients including difenoconazole, hexaconazole, propiconazole, cyproconazole and tebuconazole, and third active ingredients including tricyclazole, isoprothiolane, fenoxanil, Kanamycinum, prochloraz and azoxystrobin, wherein the weight ratio of the first active ingredient to the second active ingredient to the third active ingredient is (1-6) : (1-6) : 6. The sterilizing composite can be applied to controlling rice sheath blight disease, rice false smut and rice blast, and has reasonable ingredients, curing and protecting function, good sterilizing effect, less times of spraying insecticide and lower cost of spraying insecticide. In addition, the activity and the sterilizing effect of the sterilizing composite are not simple addition of the activity of active ingredients, but remarkable synergism isachieved. The invention has good safety on plants, slows down the generation of resistance and meets the safety requirement on agrochemicals.

The invention provides a cross-platform safety protection system based on hardware virtualization, which belongs to the technical field of computer safety. The system provided by the invention comprises a system interception module, a hardware interface module, a system service module and a safety monitoring module, wherein the system interception module is used for intercepting the specified operation system sensitive behavior and outputting the intercepted information to the system service module; the system service module determines the corresponding safety protection mechanism according to the information, and outputting a control instruction to the safety monitoring module; the safety monitoring module executes the safety protection operation; and the hardware interface module receives the call instruction of the system service module and the safety monitoring module and achieves the interaction and data transmission with the hardware system. The system can monitor and intercept the sensitive behavior of the operation system through a virtual machine monitoring program, and determine whether the behavior is a bad one or a good one by virtue of the monitoring program according to the source and aim of the behavior so as to prevent or stop the harmful aggressive behavior in time to finally ensure the safe operation of the operation system.

The invention discloses an agricultural sterilizing composite containing thifluzamide, containing a first active ingredient thifluzamide, and a second active ingredient selected from tebuconazole, difenoconazole, hexaconazole, propiconazole and cyproconazole, wherein the weight ratio of the first active ingredient to the second active ingredient is (12 : 1)-(1 : 12). The sterilizing composite is applied to controlling rice sheath blight disease, rice false smut, wheat sharp eyespot, wheat loose kernel smut and wheat Tilletia contraversa of cereal crops, and has reasonable ingredients, curing and protecting function, good sterilizing effect, less times of spraying insecticide and lower cost of spraying insecticide. In addition, the activity and the sterilizing effect of the sterilizing composite are not simple addition of the activity of the active ingredients, but remarkable synergism is achieved. The invention has good safety on plants, slows down the generation of resistance and meets the safety requirement on agrochemicals.

The invention proposes a punching method for adopting high intensity steel plates to manufacture the girder of the back bumper of a car. The invention adopts a cold punching shaping method which includes four steps of blanking and piercing, shaping and drawing, side rolling and hole flanging as well as punching; the punching technique is designed into the mode which is primary in shaping and secondary in drawing for avoiding the defects that the traditional drawing needs a large pressure-pad-force and a larger technique complementing surface and organically integrates the traditional single drawing with single shaping to lead the bumper to mainly obtain an approximate shape by shaping and needing no technique complementing surface during the shaping; thereby the conventional trimming die is reduced; the shape is solidified by the drawing at the chamfer angle positions of the part and a part of the side surface to reduce rebounding to ensure precision; thereby the operating factors of the part material is improved to the largest extent, the cost is reduced and the manufacture and debug periods of the die is decreased.

The present invention relates to a method for refining catalytic liquefied petroleum gas, in which catalyzed liquefied petroleum gas by alconol-amine method removing hydrogen sulfide process is operated by hydrolysis carbonyl sulfur process by passing through carbonyl sulfur hydrolysis activator bed layer, such that carbonyl sulfur hydrolysis generates sulfureted hydrogen and carbon dioxide; then it passes through the desulfurizer bed layer to operate hydrogen sulfide removing process, the preparation of reaction of the hydrogen sulfide and the desulfurizer is chemically absorbed on the desulfurizer; at last, liquid oxygen supplying agent having effective component of tert-butyl hydroperoxide is applied into the catalyzed liquefied petroleum gas, then it is processed by transformation mercaptan by passing through the double effects activator bed layer, under the effect of the double effects activator, the tert-butyl hydroperoxide is hydrogen peroxide decomposed to release fresh state oxygen, and the mercaptan is oxygenated to bisulfide; the activate component of the double effects activator is compound of manganic.

The invention discloses a data deduplication system with ownership management for cloud ciphertext storage and a data deduplication method thereof. The method includes the steps of installation, datauploading, file level ownership management, data block level ownership management, and data downloading. The scheme of the invention supports deduplication of cross-user file level data and deduplication of single-user data block level data, has security and high efficiency, and can resist pollution attacks and data forgery attacks for the deduplication of the cross-user file level data. In addition, a delayed update strategy in the invention can reduce the data update frequency of the deduplication of the cross-user file level data and reduce the computation overhead of the system while ensuring the forward and backward confidentiality; and a user-assisted convergence encryption method of the invention can implement the deduplication of the single-user data block level data.

The invention discloses a Hive platform oriented user safety management system. The Hive platform oriented user safety management system comprises an access control and safety audition unit, a data query unit and an identify authentication unit, wherein the access control and safety audition unit comprises a safety audition server and an access control server, the data query unit comprises an HDFS server, a NameNode server and a Hive server, and the identify authentication unit comprises an LDAP server. A Hive platform oriented user safety management method comprises four steps, including user registration, user login, user query and audition storage. According to the Hive platform oriented user safety management system and method, an exceed authority access action of the traditional user to a large-scale storage system is prevented, data leakage due to the fact that a data storage device is stolen can be safely and effectively prevented, and problems that data packets are captured illegally and private data is obtained after the traditional storage system is invaded by external personnel are prevented.

The invention relates to a bactericidal composition containing benziothiazolinone and difenoconazole based on the weight ratio of 1:80-80:1, preferably 1:10-10:1. The bactericidal composition can be prepared into water dispersible granules, wettable powder, suspension agent, water emulsion, microemulsion and emulisfying oil agent. The bactericidal composition has the advantages of rational components, treatment and protection effects, good bactericidal effect, reduced medication times, low medication cost, obvious synergistic effect rather than simple superposition of activity and bactericidal effect of the components, retarded resistance and good safety on crops, thus meeting the safety requirement for pesticide preparations; and the bactericidal composition has better prevention and treatment effects on alternaria leaf spots, scab, anthracnose, powdery mildew and leaf spots on crops such as vegetable, melon and fruit, fruit trees, flower and cereal.

The invention discloses an anti-aging, wrinkle-eliminating and anti-wrinkle cosmetic composition, which comprises ganoderma lucidum extract, agrimony extract, gromwell extract, camellia extract, camomile extract, gingko extract and other cosmetic substrates, and the extracts respectively account for 1%-20% of the total weight of the composition. The preparation form of the composition can be selected from toner, moisture milk, cream, essence, massage cream, eye cream and jelly product. The invention adopts safe and pollution-free green cosmetic raw materials, is natural, nontoxic and nonirritant, has no side effect, has effective anti-aging, wrinkle-eliminating and anti-wrinkle effects, and meets the requirement on cosmetics safety of people.

The invention discloses an unmanned aerial vehicle power transmission line patrol flight path planning method and system. The method includes the steps: acquiring image terrain data, pole and tower data and unmanned aerial vehicle and unmanned aerial vehicle carried load data of a power transmission line to be operated; making an operation plan according to the image terrain data, the pole and tower data and the unmanned aerial vehicle and unmanned aerial vehicle carried load data; making a flight path according to the operation plan; detecting the flight path to obtain detection results; editing and correcting unqualified flight path points in the detection results; simulating flight according to the edited flight path to obtain a simulated flight path; deriving the simulated flight path.Unmanned aerial vehicle line patrol task setting and flight path planning are simpler and rapider, line patrol efficiency is greatly improved, and the unmanned aerial vehicle power transmission linepatrol task and flight path intelligent planning system takes environmental factors of the power transmission line and performance requirements of an unmanned aerial vehicle and a load into full consideration, so that the planned flight path not only meets safety performance requirements, but also meets the performance requirements of the unmanned aerial vehicle and the load.

This invention relates to a non-people defensive centralized monitoring method in the monitoring field, the locale monitoring cell (1) sends all the data, alarming and video frequency picture to the monitoring center (2) using the working control machine (10) as the controller; the monitoring center (2) includes the communication service (21), the data storeroom service (22) and the working station (23), the locale maintaining workers use their mobile phone (3) to obtain the alarming information of the locale monitoring cell (1) and control the door ban function of the locale monitoring cell(1); and the fireproofing wall of the locale monitoring cell (1) and the router (19) and that of the monitoring center(2)'s use the internet or the private optical fibre (42) to exchange the data. And the locale monitoring cell can keep the device work safely under the demanded environment and power, and it also provides the door ban function and can alarm to the center and maintenance workers.

The invention aims to provide a device for acquiring the finger vein features in a reflective manner, and a method for authenticating the personal identity by use of the device. The device comprises a combined optical unit, a finger induction unit and an image acquisition unit, wherein the combined optical unit can change the optical path to reduce the linear distance for image transmission; the image acquisition unit controls the output of an IR light source, and includes a CMOS sensor for picking up the images of vein texture features; and the images are acquired by a camera and then transmitted to a host computer for conducting the recognition algorithm through a USB port. The reflective finger vein feature acquisition device can recognize the living body from the nonliving body, has no residues, is difficult to be imitated and has little possibility to damage the features. Therefore, the method becomes the novel biological feature and identity authentication technique after the fingerprint recognition, is the advanced technique in the biological feature identification field, and is more suitable for the personal identity authentication as the living biological code.

The invention provides a mixed refrigerant. The mixed refrigerant comprises trifluoroiodomethane, fluoroethane, a third component and a fourth component. The third component comprises 1,1-difluoroethane and / or 1,1,1,2-tetrafluoroethane. The fourth component is selected from one or more of trans-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene, carbon dioxide, propylene, dimethyl ether, difluoromethane, monofluoromethane and isobutane. The fourth component is obtained by compounding the trifluoroiodomethane and the fluoroethane with the 1,1-difluoroethane and / or the 1,1,1,2-tetrafluoroethane. The GWP (global warming potential) of the mixed refrigerant is greatly reduced, and GWP requirements of automotive air conditioner refrigerants are met.

The invention relates to an agricultural sterilizing composite containing thifluzamide. The first active component is thifluzamide; the second active component is selected from kresoxim methyl, azoxystrobin, pyraclostrobin and phenylate kresoxim methyl; and the weight ratio of the first active component and the second active component is 16: 1 to 1: 16. The bactericide composite is used for preventing and treating the thanatephorus cucumeris and the rice false smut of the cereal crops, the thizoctonia cerealis, the rust disease, the loose kernel smut and the stinking smut, and has the advantages of reasonable components, treating and protecting functions, good sterilization effect, reduction of the usage frequency and low usage cost; and the activity and the sterilization effect of the bactericide composite are not the simple addition of the activities of the components. The invention has remarkable synergistic action and good safety to the crops, slows down the generation of the resistance and meets the safety requirements of the pesticide formulation.

The invention relates to a method in the technical field of construction engineering, in particular to a method of reinforcing soil body for inlet and outlet cave mouths of tunnel shield, which comprises the following steps of: employing a Robertson method to explore the soil body surrounding the tunnel at the inlet and outlet cave mouths of subways, confirming a bearable largest live load and the distribution situation through applying an engineering analogue method, drilling holes on the field, selecting horizontal rotary-spray grouting materials according to the physical-mechanical parameters of a reinforcing body; carrying out partial experimental spraying construction in the soil body to be reinforced on the field as well as selecting the reinforcing bodies meeting the piling strength construction requirements in the soil body and the piling diameters of a construction site. The method in the technical field of construction engineering comprehensively considers each factor and confirms the range of the reinforcing bodies needed for reinforcing the inlet and outlet cave mouths of subways through high-pressure horizontal rotary-spray grouting by the comprehensive method combined by analyzing and judging. The method in the technical field of construction engineering is simple, reliable, economic and practical, can be suitable for confirming the reinforcing ranges of various soil bodies, and provides an important technical guarantee for successfully finishing the reinforcing engineering on the inlet and outlet cave mouths of subways.

The invention discloses a method for preparing light concrete by municipal solid waste incineration fly ash. The light concrete comprises the following compositions according to material ratio: 330 to 370kg / m<3> of the municipal solid waste incineration fly ash, 450 to 475kg / m<3> of 525# common Portland cement, 325 to 340kg / m<3> of water-granulated slag, 350 to 370kg / m<3> of ordinary clay porcelain granules, 230 to 240kg / m<3> of diabase slag, and 2.7 to 2.9kg / m<3> of admixture. The method uses the municipal solid waste incineration fly ash to prepare the light concrete, can solidify heavy metal in fly ash, thereby achieving the aim of innocent treatment of the municipal solid waste incineration fly ash. The method has a simple process, and the obtained finished product has strength grade of CL40 and apparent density of 1800, and has good macroscopic performance.

The invention relates to a financial secure transaction method, which comprises the following steps that: a multilevel password of an account and corresponding security protection parameters are generated in a financial transaction system; a system verifies the multilevel password and stores the security protection parameters and passwords meeting the rule; and the system allows performing password corresponding related transactions when receiving correct account information and correct password, wherein the multilevel password comprises a common password A, a limit password B and / or an alarm password C which are different from one another; the security protection parameter corresponding to the common password A is empty and the system displays the real balance of the account and allows the transaction within the balance; the security protection parameters corresponding to the limit password B and the alarm password C respectively limit the displayed balance of the account and the transaction is allowable within the balance; and when the alarm password C is used for transaction, the system collects an alarm signal for alarming. By the method, the multilevel password and the security protection parameters are set, so when the account and the password are illegally acquired, the capital loss of the account is limited within a preset range, the capital loss is controlled, and confidentiality is high; and when the capital of the account is illegally drawn, the system automatically collects infringement evidences to alarm, so that illegal behaviors are detected.

The invention discloses an elevator buffer which comprises a brake apparatus and a trigger mechanism, wherein the brake apparatus comprises a clamp body and a fixed part; the clamp body is installed in a lift car, a counter poise or a component related to the lift car and the counter poise, and moves along with the lift car or counter poise of the elevator; the fixed part is installed in a fixed position in the lift way of the elevator and does not move along with the lift car or counter poise of the elevator; the trigger component of the trigger mechanism is fixedly installed in the lift way of the elevator; and when the lift car or counter poise of the elevator moves downwards to reach or exceed the lowest parking position for normal operation., the trigger mechanism triggers the brake apparatus to move, the clamp body and the fixed part of the brake apparatus rub each other so as to slow down or stop the down-going lift car or counter poise. The invention can satisfy the requirements for elevator buffers in the national standard and reduce the quantity of elevator buffers used in the elevator, thereby saving resources.

The invention provides an APK (Android Package) downloading method and system based on the Android system. The method comprises steps as follows: APKs containing credit-granted application list files are signed, the signed APKs are obtained, and each credit-granted application list file comprises package names of each credit-granted APK and a corresponding public key certificate; a terminal acquires the signed APKs; the legality of the signed APKs is verified, and the credit-granted application list files are stored after verification is passed; one APK is acquired, and the legality of the APK is verified; if the verification isn't passed, whether a package head of the APK and the corresponding public key certificate are stored in the credit-granted application list files is judged; if yes, the legality of the APK is verified by continuously using an Android signature mechanism. The credit-granted application list files are added, the credit-granted APK downloading and installing process is simplified, and the updating and upgrading process of the credit-granted APKs is further simplified; influence of application update and upgrade to normal work of the terminal is reduced.