161results about How to "Solve unmanageable problems" patented technology

The invention relates to a remote mobile payment system based on a digital certificate and a payment method and belongs to the technical field of mobile payment. According to the invention, the digital certificate is used for binding an identity of a user with a public key of the user and the problem of difficulty in managing a secret key during a transaction process is solved. All communication information is encrypted by using the secret key, so that the confidentiality of the transaction information is ensured, the transaction details of the user are protected and the privacy is prevented from being revealed. Meanwhile, each piece of transaction information is digitally signed by using a private key of a sender; as long as a receiver successfully verifies the signature by using the public key of the sender, the sender cannot deny the performed operation of sending the information, so that the undeniable property of information is achieved; an abstract value of the information is calculated for each piece of transaction information; and the receiver firstly compares the abstract value of the information with the received information, so as to judge if the information is distorted and ensure the completeness of the information.

The invention discloses a fluidized bed boiler control and combustion optimization system. The problem that a fluidized bed boiler system is not easy to control for a long time is solved. According to a method, a control strategy of combining an advanced control algorithm and a conventional control algorithm is adopted, and continuous, economical and stable operating of the boiler system is guaranteed; multivariable model-free adaptive control is adopted, and decoupling control of the fuel quantity and the air supply quantity over the bed temperature under the variable load work condition is achieved; and a nerual network technique is adopted for building a boiler combustion prediction model, online calculation of the boiler efficiency and NOX and SOX emissions is achieved, a multi-objective optimization function is constructed according to the prediction result, a combustion self-optimization algorithm is adopted, the flue gas oxygen content and the bed temperature are optimized constantly so as to adapt to work condition changes, and a fluidized bed boiler can operate in an optimal combustion area.

The invention discloses a preparation method of a Cu-Zn-Sn-S thin film, comprising the steps of: by adopting a successive ionic layer adsorption reaction method, sequentially or alternatively soaking one substrate in a cation precursor solution and an anion precursor solution to prepare a Cu2SnSx film and ZnS film laminated precast layer structure or a Cu2S film and ZnSnSx film laminated precast layer structure, and then performing heat treatment to obtain the Cu-Zn-Sn-S thin film; the cation precursor solution comprises at least one of copper ions, stannum ions and zinc ions, and the anion precursor solution is selected from at least one of a sodium sulfide solution, a potassium sulfide solution and an ammonium sulfide solution; the substrate is selected from one of glass, PI (polyimide), a stainless steel plate, a molybdenum plate and a titanium plate. The preparation method of Cu-Zn-Sn-S thin film not only solves the problem that the metal components are difficult to control, but also prevents the copper ions from moving to the surface of the film to form a sulfur copper phase. The preparation method is simple and applicable, low in cost and suitable for industrialization production.

The invention relates to a door control system capable of conferring opening authority to visitors and a door control management method. The authority of users is managed by a door control management server, so that the users can confer the opening authority to the visitors, owners have visitor management authority, after the owners identify identities of the visitors, then the opening authority is given to the visitors, and therefore, management safety of the door control system is greatly improved. Meanwhile, after the opening authority is conferred to the visitors, the visitors can voluntarily open doors, inconvenience that the user permits visiting of the visitors is avoided, and opening convenience of the visitors is improved.

The invention discloses a roadside parking management and charge system based on a high / low level video array. The system comprises a high-level video array, a middle-level video array, a main controlsystem and a charging pile, wherein the high-level video array is mounted in a high position of the charging pile and is used for taking stall state image of a stall far away from the charging pile;the middle-level video array is mounted in the middle of the charging pile and is used for taking a stall state image of a stall below the charging pile; the main control system is used for implementing vehicle detection and vehicle license board detection recognition and analysis according to the stall state images, and used for controlling the charging pile to charge a new energy vehicle. By adopting the system, a stall below the charging pile is managed through the middle-level video array, furthermore the problem that the stall below a conventional recharge pile is hard to manage is solved, and with the combination of the recharge pile, the recharge requirements of new energy vehicles parking on a roadside can be met, the utilization rate of new energy vehicles in different cities is increased, and the environment can be protected.

The invention provides a magnetic levitation balance apron spray sewin aerospace seal plenum chamber air cushion train. The bottom of the body air cushion train is equipped apron, The apron and bottom of the train in it and road pavement form a plenum chamber; the apron is equipped a spray sewin which connects with the air supply duct of the air supply apparatus and the plenum chamber; the bottom of the car body is equipped a air exhaust opening which connects with the plenum chamber; the bottom of the car body is equipped a magnetic levitation balance control system. The invention combines air cushion principle and magnetic levitation balance principle, and solves the problem of control area air cushion balance; the invention uses apron spray sewin aerospace seal plenum chamber air cushion, and large air cushion, strong encapsulation, relative high air pressure. So it gets strong carrying capacity; the invention uses linear motion actuator not traditional jet engine as drive apparatus, so, it is low noise, no pollution.

The invention discloses an NVR and IPC port corresponding method comprising the steps that NVRs are connected with multiple IPCs through exchange equipment in a distributed network with the NVRs acting as nodes; explicit numbering is performed on each network port of the exchange equipment, and each numbered network port and different video channels in the NVRs are correspondingly bound in a one-to-one way; and VLAN isolation and identification are performed on each network port of the exchange equipment so as to form an independent connection channel of each IPC to the NVRs, and thus one-to-one correspondence of physical ports and the video channels can be realized. The exchange equipment is ingeniously utilized to provide the actual physical ports, corresponding matching of the logic interfaces of the NVRs is performed with combination of the virtual local area network technology, and a VLAN tag is marked on a transmitted message so that isolation and identification of data transmission can be effectively realized, orderly processing of the NVR ends for multiple receiving video data can be facilitated, and the problems that video data streams are difficult to distinguish in a complex network distribution environment and management is not convenient can be effectively solved.

The embodiment of the invention provides a longitudinal seam welding device for a 5 M-class storage-box bottom. The longitudinal seam welding device solves the problems that positioning accuracy of an existing 5 M-class storage-box bottom is low and the tool rigidity of the 5 M-class storage-box bottom is weak. The longitudinal seam welding device for the 5 M-class storage-box bottom comprises a portal support (1), a longitudinal guild rail (2), a portal guild rail (3), a welding unit (4), a dislodgement machine (5) and a welding die tyre (6); the longitudinal guild rail (2) is fixed to the foundation, and the tail end of the portal support (1) slides longitudinally along the longitudinal guild rail (2); the top end of the portal support (1) is provided the portal guild rail (3), and the welding unit (4) slides along the portal guild rail (3); the dislodgement machine (5) is located under the portal support (1); the welding die tyre (6) is arranged on the dislodgement machine (5) and conducts horizontal rotating and vertical flip-flop movement along with the dislodgement machine (5).

The invention provides a semi-automatic tea wafer machine, comprising a machine body, four columns 18, a lower principal thick bearing plate 26, a supporting plate 27, a jack 22 on the supporting plate, a motor 24 and a transmission cam 23, a pedal 25, a lift sliding panel 20, an oil-way switch 28, a draw spring 21, a lift sliding column 19, a fixed die supporting plate 9, a lift die supporting plate 8, a die slider 14, a spring 17 and a spring sleeve 16 that are arranged on the die slider, two dead levers with different heights and an inductor 2 that are arranged on the fixed die supporting plate 9, a die 15 and a spacer pin 6 that are arranged on the die slider, an upper and principal thick bearing plate 11 and a die cover press plate, etc. A tea wafering process using the semi-automatic tea wafer machine comprises steps of: installing the die; loading teas into the die; wafering a tea cake; and resetting the die. The semi-automatic tea wafer machine of the invention has a simple structure, easy operation, uniform pressure, good wafering effect and high moulding rate and is capable of wafering high-quality tea cakes.

A method for operating a virtual adjusting button is provided. A virtual adjusting button is displayed. The virtual adjusting button is operated by an operating point of an operating unit for adjusting a setting value correspondingly. A movement of the operating point is detected when the operating point is located on the virtual adjusting button and the virtual adjusting button is selected. A dynamic virtual adjusting button corresponding to the virtual adjusting button is displayed with the movement of the operating point when detecting that the operating point moves toward a direction away from or close to a reference point of the virtual adjusting button. A displaying size of the dynamic virtual adjusting button is changed correspondingly with a change of a distance between the operating point and the reference point. A precision of the setting value for adjusting is changed by operating the dynamic virtual adjusting button.

The present invention discloses a heat sink, including a heat sink body and a filling material. A through hole is disposed in a position, corresponding to a to-be-cooled electronic element, on the heat sink body. The to-be-cooled electronic element is mounted on a circuit board and located between the circuit board and the heat sink body. There is a gap between the to-be-cooled electronic element and the heat sink body. The gap is connected to the through hole. The filling material is injected into the through hole and fills the gap. The present invention further discloses a heat dissipation system having the heat sink. The heat sink resolves problems in the prior art that, a heat sink has low thermal conduction efficiency and it is difficult to control a filling volume of a thermally conductive material in a gap between a heat sink and a chip.

The invention discloses a method for determining the content of components in blended fiber and relates to the method for determining the blended fiber. The method comprises the following steps: acquiring near infrared spectrum data of the blended fiber and a detected pure fiber, and converting the obtained near infrared spectrum data into angle values between the blended fiber and the detected pure fiber; by selecting a modeled blended fiber sample as a correction set, selecting a blended fiber sample to be detected as a prediction set, taking the content of the detected pure fiber in the correction set as a dependent variable and taking a matrix consisting of the correction set and the angle value of the detected pure fiber as an independent variable, establishing a multi-variable regression model through a partial least squares method; substituting the angle values of the blended fiber to be detected and the detected pure fiber into the multi-variable regression model so as to obtain the relative content of the detected pure fiber in the blended fiber to be detected. During fiber detection, sample pretreatment is not needed, an experiment environment requirement is reduced, and an analysis method is simple, quick and accurate and is also can be used for determining the content of components to be detected in the blended fiber when the components of the blended fiber are undetermined.

The invention discloses an SCS (structure cabling system) encased structure based on PBL (planetary boundary layer) stiffening ribs. The SCS encased structure comprises an outer steel tube, an inner steel tube, a plurality of PBL stiffening ribs arranged between the outer steel tube and the inner steel tube, and a concrete structure which is poured and molded by concrete filled inside a cavity between the outer steel tube and the inner steel tube, wherein the outer steel tube, the inner steel tube and the plurality of PBL stiffening ribs are equal in longitudinal length; the plurality of PBL stiffening ribs are arranged along the peripheral direction of the inner steel tube; the inner lateral wall of each PBL stiffening rib and the inner lateral wall of the inner steel tube are fastened and connected into a whole, and the outer lateral wall and the outer lateral wall of the outer steel tube are fastened and connected into a whole. The SCS encased structure is simple in structure, reasonable in design, convenient to construct, low in construction cost, excellent in mechanical property, and good in using effect, and the problems of large dead load of the existing encased structure, poor connection performance of the outer steel tube and the internal concrete, and small hoop effect of the outer steel tube on the internal concrete can be effectively solved.

The invention discloses a quick control method of the negative pressure of a hearth during the primary air fan RB process of a supercritical once-through boiler. The quick control method is used for controlling induced draft fans and a booster fan when an RB command is given, which is caused by the fact that one of two primary air fans in a system trips due to failure. Under different operation conditions and different loads, induced draft fan baffle commands and booster fan baffle commands are given when the primary air fan RB of the supercritical once-through boiler happens, so as to avoid the severe disturbance of the negative pressure of the hearth during the RB process, the control problem of the negative pressure of the hearth during the primary air fan RB process is solved, the negative pressure of the hearth can be quickly stabilized within the appropriate range after the primary air fan on one side trips, and disturbing again, which is caused by feedforward signal variation, is avoided during the RB process and after the RB is ended.

The invention relates to a biaxially oriented film binding-type horizontal stretching method and a device. Flexible binding ropes are utilized to enable two edges of a preheated film to be bound so as to compress the surface of a longitudinal stretching roller, wherein the flexible binding ropes are outwards arranged on both sides of the longitudinal stretching roller symmetrically and helically and are less than a circle of the longitudinal stretching roller; the film rotating along with the longitudinal stretching roller is stretched in the longitudinal direction, and the friction force between the film and the binding ropes is far greater than that between the film and the surface of the longitudinal stretching roller, so that the film is stretched in a continuously linear manner in the horizontal direction at the same time when the binding ropes do a helical motion towards the outer side of the longitudinal stretching roller, and the film can be stretched synchronously in the longitudinal direction and in the horizontal direction. The two binding ropes are respectively supported by turning pulleys and tensioning pulleys to form respective closed loops, and are driven by the longitudinal stretching roller to do a circulating motion. The horizontal stretching ratio can be regulated by changing the distance between the two binding ropes at a binding entry point and a stripping point on the longitudinal stretching roller. Compared with the traditional horizontal stretching technology adopting a gripping head to clamp, the biaxially oriented film binding-type horizontal stretching method and the device are characterized by horizontal stepless stretching and small size of the device, are low in cost and energy consumption, have an easy-to-control stretching process.

The invention provides a device and method for testing arsenic through an atomic fluorescence method. The device comprises a hydride generating device, a dielectric barrier discharging reactor, a power source, a gas circuit and an atomic fluorescence spectrometer. The method for testing an atomic fluorescence spectrometer pre-concentrated with arsenic comprises the steps that an arsenic hydride is generated, at the atmosphere of argon and oxygen mixed gas, the dielectric barrier discharging reactor performs a discharging reaction, and arsenic capture is completed; at the atmosphere of argon and hydrogen mixed gas, the dielectric barrier discharging reactor performs a discharging reaction, arsenic release is completed, and the content of the released arsenic is analyzed through the atomic fluorescence spectrometer. According to the device, the problem that capture and release of arsenic elements are not easily controlled by the dielectric barrier discharging device is solved, and the device has the advantage that online efficient concentration and accurate and stable analysis of trace amount arsenic in a sample can be achieved due to the fact that the device is directly connected with an optical spectrum instrument in series.

The invention provides a semi-automatic tea wafer machine, comprising a machine body, four columns 18, a lower principal thick bearing plate 26, a supporting plate 27, a jack 22 on the supporting plate, a motor 24 and a transmission cam 23, a pedal 25, a lift sliding panel 20, an oil-way switch 28, a draw spring 21, a lift sliding column 19, a fixed die supporting plate 9, a lift die supporting plate 8, a die slider 14, a spring 17 and a spring sleeve 16 that are arranged on the die slider, two dead levers with different heights and an inductor 2 that are arranged on the fixed die supporting plate 9, a die 15 and a spacer pin 6 that are arranged on the die slider, an upper and principal thick bearing plate 11 and a die cover press plate, etc. A tea wafering process using the semi-automatic tea wafer machine comprises steps of: installing the die; loading teas into the die; wafering a tea cake; and resetting the die. The semi-automatic tea wafer machine of the invention has a simple structure, easy operation, uniform pressure, good wafering effect and high moulding rate and is capable of wafering high-quality tea cakes.

The invention relates to a prediction method for PM2.5 concentration of fine particulate matters in air based on a stack selective integrated learning device. The concentration of six pollutants in the air per hour in the past 24 hours and six meteorological indexes totally account for 24 groups and 12 characteristics to serve as input, and a PM2.5 concentration predicted value is obtained. The model is realized in a three-stage framework and comprises the following steps of: firstly, creating a plurality of base learners by properly selecting environmental factors, time factors and training samples; secondly, deleting the negative basis learners in the three categories according to a dynamic threshold value by adopting a trimming technology; and finally, integrating the selected forward basis learners by adopting a stacking technology so as to predict the future PM2.5 concentration. Compared with an existing method, the method has the advantages that prediction errors and the difficulty degree of data sources are obviously improved, people can be guided to travel healthily, and the government can be assisted to limit automobile flow, exhaust emission and the like.

The invention discloses a centrifugal spiral spinning head and a centrifugal spiral spinning device employing the same. The centrifugal spiral spinning head comprises two parts, namely a hollow screw and a coaxial spiral blade which is connected with the hollow screw, wherein spinneret orifices are evenly formed in the outer edge surface of the spiral blade vertically to the axial direction; and when the screw rotates at a high speed, a feed liquid flows through the hollow screw under the action of centrifugal force, and is sprayed from the spinneret orifice in the tip of the spiral blade. According to the centrifugal spiral spinning device, the defects that existing centrifugal spinning equipment is complicated in structure, poor in air-tightness, and poor in spinning uniformity; and the actual requirements can be well met.

The invention discloses a real-time fluorescent quantitative PCR (polymerase chain reaction) detection method as well as a standard substance and a detection kit for real-time fluorescent quantitative PCR detection. The special standard substance is used for drawing standard curves, real-time fluorescent quantitative PCR detection is performed on an HER2 gene of a to-be-detected sample and a reference gene, and the detection method is used for clinical targeted therapy of breast cancer and stomach cancer. The invention further provides a plasmid vector containing a reference gene segment and a to-be-detected target gene segment in an equal proportion and taken as the detection standard substance. The invention also provides the real-time fluorescent quantitative PCR kit for detecting the amplification state of the HER2 gene. The kit comprises a PCR reaction system for detecting the amplification state of the HER2 gene, the standard substance and negative and positive controls. The detection method and the detection kit have the advantages of being convenient to use, high in detection efficiency, cost-saving and the like. Great significance in diagnosis of HER2 positive breast cancer as well as research and development, quality control and clinical application of breast cancer resistant drugs is realized.

The invention discloses an antistatic color gel coat and a preparation method thereof. The antistatic color gel coat is prepared from the following components in parts by weight: 100 parts of matrix resin, 8 to 20 parts of styrene, 10 to 30 parts of functional filler, 2 to 3 parts of a thixotropic agent, 0.12 to 0.2 part of a thixotropic stabilizer, 1 to 10 parts of an antistatic agent, 0.4 to 1 part of a surface auxiliary agent, 10 to 20 parts of color paste, and 0.1 to 0.4 part of an accelerant. The preparation method comprises the following steps of: putting the matrix resin into a dispersing kettle at first, adding the functional filler under stirring, then dispersing, adding the thixotropic stabilizer, adding the thixotropic agent under stirring, and dispersing again to obtain a matrix gel coat; and adding the color paste, the styrene, the antistatic agent, the surface auxiliary agent and the accelerant into the matrix gel coat, and uniformly stirring to obtain a finished product of the antistatic color gel coat. The antistatic color gel coat is controllable in gelatination and curing time, stable in surface resistance and rich in color.

The invention discloses a method for controlling the air gap thickness in an Otto structure by using a dielectric film. When the light intensity reflectivity R has a minimum value, the corresponding air gap thickness d1 is the thickness of the dielectric film for plating. The dielectric film is used for plating a prism bottom by using a physical deposition method or a chemical deposition method. After the dielectric film is used for plating, the thickness of the dielectric film for plating is measured by a precision measuring instrument, and namely the thickness of the dielectric film for plating is the thickness of an actually controlled nano scale air gap. The problem that it is difficult to precisely control the thickness of the nano scale air gap in the Otto structure which is used for generating surface plasma resonance effects is solved.

The invention relates to a visitor door control system based on Wechat and a visitor door opening method. By means of the visitor door control system based on Wechat, a door control management server calls the scanning function through a Wechat server, and a visitor recognized through the Wechat server can obtain the position of a door controller based on a scanning two-dimensional code, the position of the visitor can be obtained and the door control system can be controlled to be opened on the premise that the visitor is not queried so that after the visitor is granted the door opening permission, the visitor can confirm the door control position and release door control by himself / herself, inconvenience brought to passing of the visitor is avoided, and the door opening convenience of the visitor is improved.

The invention discloses blue stone underlay handling method, using the P-MBE device to treat blue stone underlay by three steps. The method comprises the following steps: plasma treating the underlay at the low temperature, then depositing the lithium or magnesium at low temperature and ultra high vacuum, finally carrying out annealing treatment to get blue stone surface modified by lithium oxide or magnesium oxide. The method improves the crystallization quality of zinc oxide epitaxial film. The zinc oxide film made on the modification surface of blue stone possesses the good optical property and suits for high-performance opto-electronic device.

The invention discloses an SCS (structure cabling system) encased structure based on longitudinal stiffening ribs. The SCS encased structure comprises an outer steel tube, an inner steel tube, a plurality of longitudinal stiffening ribs arranged at the inner lateral wall of the outer steel tube, and a concrete structure which is poured and molded by concrete filled inside a cavity between the outer steel tube and the inner steel tube, wherein the outer steel tube and the inner steel tube are coaxially arranged; the plurality of longitudinal stiffening ribs are arranged along the peripheral direction of the inner steel tube; the outer steel tube, the inner steel tube and the plurality of longitudinal stiffening ribs are equal in the longitudinal length, and the transverse width of each longitudinal stiffening rib is the distance between the outer steel tube and the inner steel tube at the arranged positions. The SCS encased structure is simple in structure, reasonable in design, convenient to construct, low in construction cost, excellent in mechanical property, and good in using effect, and the problems of large dead load of the existing encased structure, poor connection performance of the outer steel tube and the internal concrete, and small hoop effect of the outer steel tube on the internal concrete can be effectively solved.

The invention discloses a roadside concurrent parking event management device, system and method. The system comprises a scheduler and at least two detection and identification devices. The roadside concurrent parking event management device provided by the invention can be used as the detection and identification device and the associated detection and identification device of the detection and identification device to manage roadside parking. When the detection and identification device (caller) determines concurrent parking events by detecting a parking event, and requests the scheduler tocall the associated detection and identification device according to the concurrent parking events, the scheduler schedules the association detection and identification device to cooperate with the caller according to the call request of the caller. The concurrent parking events are captured and identified according to the capture rule of the caller to acquire the license plate number of each vehicle in the concurrent parking events and the type of each parking event in the concurrent parking events. The problem of difficult management of parallel parking events in a roadside parallel parkinglot is solved.

The invention provides a building device for a vehicular sensor network platform, which belongs to the technical field of automobiles and solves the problem of difficulty in management of sensor platforms in the prior art. The device comprises a plurality of sensors, a plurality of CAN (controller area network) bus communication modules of sensor nodes, a sensor gateway node and a monitoring service center host. The sensors are arranged in vehicles, the CAN bus communication modules of the sensor nodes are correspondingly connected with the sensors, the sensor gateway node is connected with the CAN bus communication modules of the sensor nodes by a CAN bus, each CAN bus communication module of the sensor node consists of a signal conditioning circuit, a node controller, a CAN controller and a CAN transceiver, each signal conditioning circuit is connected with the corresponding sensor, each node controller is connected with the corresponding signal conditioning circuit, each CAN controller is connected with an SPI (serial peripheral interface) of the corresponding node controller, each CAN transceiver is connected with the corresponding CAN controller, the sensor nodes can collect parameter signals detected by the sensors when the vehicles run, and the sensor gateway node can organize and coordinate data exchange between the internal CAN network of each vehicle and the external. The building device for the vehicular sensor network platform brings convenience for managing the networked sensor platform.

A load curve adjustment-oriented active power distribution network simulation optimization operation method comprises the steps of obtaining basic data, setting convergence conditions, constructing and solving an upper-layer optimization model, constructing and solving a lower-layer first-stage optimization model and a lower-layer second-stage optimization model, and obtaining benefits of a virtual power plant, a scheduling scheme of resources in the virtual power plant, a final optimized load curve and the like. The method has the advantages that active management strategies and management means possibly adopted by a power distribution system dispatching center in the system operation process are considered on the basis of a traditional load curve prediction result, the dispatching potential of various active resources in a power distribution network is fully excavated, the virtual power plant serves as a regulation main body, the adjustment effect of the virtual power plant on the load curve under the active management strategy is simulated, the load curve is further optimized, and a load demand curve which better fits the actual operation of a power grid in the future is obtained, so that support is provided for follow-up accurate guidance of power distribution network planning construction and operation scheduling.

The invention discloses a medical optical fiber comprising N laser fibers (1) with predetermined lengths, N-1 fiber connecting components (2), a fiber guiding structure (3) and a fiber controller (4).The N laser fibers (1) are connected through the N-1 fiber connecting components (2), and a serial fiber structure (5) is sequentially formed. One end of the serial fiber structure (5) is connected to the fiber guiding structure (3), the other end is connected to the fiber controller (4), and N is a positive integer. Each of the fiber connecting components (2) is provided with a pressure sensor (6) which is connected to the fiber controller (4) and is used for detecting the pressure data of the fiber connection components (2). The fiber controller (4) is used for judging the coupling state ofthe medical optical fiber according to the pressure data. According to the medical optical fiber of the invention, the controllability of the optical fiber in a human body is enhanced, problems suchas damage of the optical fiber are prevented, and the risk of treatment is reduced.

The invention discloses an unstructured document management and rule and system entry management integrated system which comprises a data input module used for inputting rule and system files; The system file data set is used for storing rule file data; The indexer is used for constructing an index for the rule file data; The index library is used for storing all file indexes; The word segmentation device is used for analyzing at least one retrieval keyword from retrieval information input by a user; And the retriever is used for determining a target file index matched with the retrieval keyword from the file indexes in the index library, determining target description information corresponding to the target file index and displaying the target description information. The invention provides a storage and retrieval platform integrating unstructured document management and rule entry management, a user can quickly and accurately obtain a full-text retrieval result of a rule, and meanwhile, the cloud storage, access and management functions of the unstructured document can be realized.