124results about How to "Adapt to application needs" patented technology

The invention belongs to the technical filed of security inspection and relates to a vertical mechanical microwave scanning active imaging personnel security inspection system. By means of creative design and through adoption of a pair of horizontal detection arrays which are separately arranged in parallel on two sides or the front side and the back side of an inspected person in a vertical mode, vertical scanning imaging for the inspected person is conducted. Each detection array is in a shape of a straight array or a bow shape with two inwards folded heads or an arc shape or the like. Compared with an existing adopted vertical detection array active imaging personnel security inspection system, the vertical mechanical microwave scanning active imaging personnel security inspection system has the advantages that the number of transmit-receive components of the detection arrays can be reduced greatly and a system structure is simplified. Not only is convenience brought to storage, transportation, installation and usage but also system cost can be reduced.

The invention discloses a routing method in a vehicle wireless communication network. The method disclosed by the invention comprises the following steps: route establishment: carrying out a route request and a route response, establishing a fixed node at the crossing, namely an anchor point and establishing an anchor point route on the anchor point; route transmission: carrying out the route transmission by adopting the adaptive broadcasting based on a chain prediction mechanism and a transmission algorithm based on the chain prediction mechanism; and route maintenance. The invention also discloses the vehicle wireless communication network. In the vehicle wireless communication network disclosed by the invention, a wireless communication module loading a special short-distance communication protocol is installed on each vehicle to jointly form a distributed ad hoc network; each vehicle forms a node; a fixed static wireless node is installed at the crossing; the static wireless node serves as the anchor point through the wireless communication module loading the special short-distance communication protocol and is used for assisting the node communication on the route or collecting the information of the crossing; and the anchor point and the nodes on the road jointly form the vehicle wireless communication network.

An information system synchronous data processing method utilizing secondary buffer technology. The method includes the steps of firstly, using uniform data format to package data in information channels, and processing frame header packaging information to realize mapping of synchronous data with corresponding information channels of the synchronous data; secondly, using multithread data synchronization method, which realizes data synchronization of high-speed multi-channel information, of a secondary buffer processing mechanism; and using and processing data after information data synchronization. The method has the advantages that the method is fine in data synchronization adaptability, better in synchronization performance, more reliable and stable, high in data synchronization precision, fine in data synchronization independence, high in reducibility, and transparent to users.

The invention discloses a digital phase locking and frequency tracking electromagnetic induction heating power controller, and belongs to the technical field of electronic circuits. Firstly, sampling is carried out on a current and a voltage output by a full-bridge inverter, phase demodulation output signals Q1 and Q2 are obtained through zero detection and digital phase demodulation, when the high level time of the Q1 is smaller than a half cycle value of a driving signal of a switch tube of the current full-bridge inverter, a load loop is inductive, the Q1 is selected to conduct loop filtering, or the load loop is capacitive, and the Q2 is selected to conduct loop filtering. A compensator calculates the frequency of the driving signal required by the switch tube of the full-bridge inverter in the next cycle, and a DPWM unit generates the driving signal of the switch tube of the full-bridge inverter in the next cycle according to the calculating result of the compensator. The digital phase demodulation is adopted by the controller, a DSP chip is utilized for achieving the frequency tracking, the frequency adjusting range can be effectively improved, and the system efficiency is improved. The controller is simple in structure, effective in control and capable of being suitable for the application requirements for the electromagnetic induction heating power source frequency tracking.

The invention provides a method for establishing relevance relation among services under an opened network, which provides a sub-step relevance mapping model aiming at characteristics of dynamics, isomerism, progressive services and the like of an opened network environment, and uses the sub-step relevance mapping model to establish a relevance service resource pool meeting a user individual requirement. According to the scheme provided by the invention, the relevance relation among the services is considered from a plurality of view points; the relevance relation among the services of a combined service in different steps can be comprehensively analyzed according to an executing route of the combined service, a combination process and a service implementation process; and a sub-step relevance mapping mechanism for indexing a relevant service mapping pair list is established. With the adoption of the scheme, the selection of carrying out the services depending on port matching among the services can be expanded; the properties of an executing structure of the combined service, and the interaction property and the limitation property in service implementation can be increased; and a novel model is provided for a research of a relevance mechanism among the services in the opened network environment.

The invention discloses a joint assembly of a desktop mechanical arm. The joint assembly comprises a big arm, a forearm and two connecting pieces arranged between the big arm and the forearm; the bigarm comprises a big arm main rod and a big arm auxiliary rod which are oppositely arranged; the forearm comprises a forearm main rod and a forearm auxiliary rod which are oppositely arranged; the first end of the big arm main rod is provided with two first hinge parts which are oppositely arranged left and right at intervals; the two connecting pieces are arranged side by side and left and right and are located between the two first hinge parts; the first end of the forearm main rod is provided with a second hinge part; the second hinge part is located between the two connecting pieces; the two first hinge parts, the two connecting pieces and the second hinge part are connected through a first hinge shaft; and the first end of the big arm auxiliary rod and the first end of the forearm auxiliary rod are hinged to the two opposite sides of the two connecting pieces correspondingly. According to the joint assembly of the desktop mechanical arm, the connecting strength is enhanced, the matching stability and the driving effect are improved, the supporting strength is enhanced, and the safety is improved. In addition, the invention further discloses the desktop mechanical arm and a robot.

The invention discloses an electrospinning composite micro-nano fiber air filtration membrane and a preparing method thereof. The air filtration membrane is prepared through an electrospinning method, the composite micro-nano fiber of the air filtration membrane is formed by nano-silver particles, enteromorpha activated carbon / titanium dioxide composite particles and a water insoluble high-molecular polymer, wherein the enteromorpha activated carbon / titanium dioxide composite particles are prepared from electrospinning TiO2 / high-molecular polymer / enteromorpha nano particles (enteromorpha nano dry powder) composite nano fiber membrane through high-temperature heat treatment, acid pickling and smashing. The air filtration membrane is simple in preparing method, excellent in performance and capable of effectively adsorbing and decomposing formaldehyde and other harmful substances while blocking and filtering dust pollutants and has a good antibacterial function and a good comprehensive protection effect.

The invention relates to an intelligent configuration system and an intelligent configuration method for a wireless sensor network. The system comprises a sensor network module, a gateway module, an output module, an execution module and an application layer interface module. The system and the method solve problems of poor adaptability, poor reliability and relatively great control cost existing in a device and a method of a traditional sensor network. The system and the method for the wireless sensor network have advantages of intelligent performance, strong robustness, good versatility and small control cost.

The invention provides a low-Reynolds-number wing section matched with a full-wing solar unmanned aerial vehicle. The low-Reynolds-number wing section is characterized in that the relative thickness of the wing section is 11%-13%, the maximum camber of the wind section is 2%-4%, and a chordwise position with the maximum camber is 25%-30%; the wing section has a single bent outline in a 70% chordwise range from a front edge. With a full-aircraft matching design, the checking of pneumatic characteristics of a pair of wing sections is finished by checking the corresponding pneumatic characteristics of the wing sections and applying the two wing sections to the full-wing solar unmanned aerial vehicle, and the low-Reynolds-number wing section shows good pneumatic characteristics and engineering enforceability and can meet application demands on low Reynolds number, high lift force and lift-to-drag ratio and large relative thickness of the full-wing solar unmanned aerial vehicle.

The invention discloses a swimming and walking combined underwater operation robot and a control method thereof. The robot comprises a frame, a floating body module, a hanging bracket, a control sealed cabin, a moving component, a sensing and probing component, a vision localization device and an operation extension module, wherein the floating body module, the hanging bracket, the control sealed cabin, the moving component, the sensing and probing component, the vision localization device and the operation extension module are mounted on the frame; and the gravity center of the robot is positioned below a buoyant center. The swimming and walking combined underwater operation robot can be adapted to the operation demands of different types and different postures of working faces and can also adapted to the demands of omnibearing maneuvering and obstacle crossing ability on different working faces, thus the walking capacity, on the working faces, of the underwater operation robot is improved, and the underwater operation robot can be adapted to the demands of more application sites.

The invention relates to a composite material with high obstruction and high performance and a preparation method thereof. The composite material with high obstruction and high performance is a laminated body sequentially compounded by a polyfluoroethylene thin film layer, a polyurethane adhesive layer, an AL / PET film layer, a polyurethane adhesive layer, a Kevlar fabric layer and a polyurethane coating. The composite material can ensure lower gas permeability and good mechanical properties and fatigue resistivity under the condition of lighter quality and can be really adapted to the application requirement on the material with high obstruction in the aerospace field. The preparation method is a dry method solvent-free composite technology, the solid content of adhesive used for the method is 100 percent, and no solvent is contained. The method has the great characteristics of environment protection, high product hygiene index and product quality guarantee.

The invention discloses a financial big data-oriented multi-way tree structure block chain integrated optimization storage method. The method comprises the following steps of 1, constructing a multi-way tree structure block chain integrated optimization model; 2, constructing a private chain block based on a Merkle tree; 3, constructing an alliance chain block based on a Merkle Pattercia tree; and4, establishing a communication consensus mechanism of the block chain. By means of the method, the multi-way tree structure block chain integrated optimization storage method oriented to financial big data is provided, and compared with an existing storage method, the storage efficiency, expenditure and other aspects are obviously improved; and during query, the query efficiency and accuracy arealso remarkably improved, and the application requirements in the current big data era are met.

The invention discloses a full-automatic log periodic antenna. The full-automatic log periodic antenna is capable of meeting high mobility requirement, fixing requirement or the like application requirements. The full-automatic log periodic antenna takes full advantages of the lifting function of an antenna mast, a soft line oscillator and an automatic line winder for winding and storing the soft line oscillator to full automatically mount, wind and store antenna. The full-automatic log periodic antenna realizes to full automatically switch the antenna working states without manual operation; the full-automatic log periodic antenna is easy to highly and organically integrate with a carrying platform, the platform shape is rarely influenced, and the cross-country mobility of a carrying tool is not influenced; the full-automatic log periodic antenna can adapt to the application requirements of different special fields and greatly improve the quick response ability of the system.

The invention discloses an anti-smog face mask filter sheet. The filter sheet is of a three-layer nano-fiber film composite structure, the upper layer is nano-silver antibacterial fiber film, the middle layer is activated carbon nano-fiber film, the lower layer is traditional Chinese medicine antibacterial fiber film, the activated carbon nano-fiber film is obtained by oxidizing in advance and conducting carbonization treatment on a high polymer material / activator composite nano-fiber precursor prepared through an electrospinning method, the nano-silver antibacterial fiber film is formed through electrospinning compounding on the upper surface of activated carbon nano-fiber, and the traditional Chinese medicine antibacterial fiber film is formed through electrospinning compounding on the lower surface of the activated carbon nano-fiber. When the filter sheet is applied to a face mask, a very good filtering effect can be exerted on small-particle tiny dust, the filter sheet is good in breathability, harmful bacteria in air can further be filtered out and killed, and the health of the respiratory system can be better guaranteed.

The invention discloses a sodium alginate nanofiber as well as a large-scale electrospinning preparation method and application thereof. A sodium alginate micro-nanofiber is prepared by an airflow-assisted electrospinning method, wherein the content of sodium alginate in the micro-nanofiber is 75% or higher; the fiber diameter is 50-900 nm; the sodium alginate nanofiber is prepared according to the air-assisted electrospinning method; airflow same as a spinning jet direction is provided by a gas producing mechanism in the spinning process, so as to accelerate the evaporation of a solvent and promote the formation of spun silk; the sodium alginate nanofiber is simple in preparation method, low in requirement on spinning conditions, high in yield, and suitable for large-scale production; spinning precursor liquid is simple in formula, without adding a cross-linking agent and an irritant or toxic solvent; the content of sodium alginate in the obtained nanofiber is high, so that the sodium alginate nanofiber has significant advantage in application in fields of biological tissue engineering materials, wound repair materials or beauty and cosmetics.

The invention relates to the technical field of preparation of a surface micro-nano functional structure, in particular to a method for preparing a TiO2 multi-scale micro-nano composite structure on atitanium substrate. Firstly, a ultrafast laser is used for etching the surface of a pure Ti sheet in deionized water or absolute ethanol to prepare a first-level micro-structure, and ultrasonic cleaning is performed; then the surface of the laser-etched Ti sheet is subjected to gold film plating by magnetron sputtering; and finally, the Ti sheet after gold film plating is placed in a muffle furnace for heat treatment, a second-level nanostructure is prepared on the surface of the micro-structure to obtain the crystal type TiO2 multi-scale composite micro-nano structure.

The present invention provides a method for preparing wrinkle-free graphene. The method comprises the following steps of: S1: providing a catalyzation substrate; performing ion implantation in a preset region of a surface of the catalyzation substrate to damage catalytic performance of the implantation region and to form a plurality of separate non-implantation units on the surface of the catalyzation substrate; and S2: putting the catalyzation substrate in a growth chamber; heating the catalyzation substrate to a preset temperature; introducing a carbon source to the growth chamber; and growing a plurality of separate wrinkle-free graphene units on the surface of the catalyzation substrate. According to the method provided by the present invention, not only high-quality graphene units with no wrinkle or low wrinkle density can be obtained, but also graphene units in a particular shape can be obtained by controlling the region in which ions are implanted, thereby meeting various device application demands.

The invention relates to an affine transformation subbytes box-based lightweight hash method. The method comprises the following steps of a message initializing stage, a message absorption stage, and an abstract output stage. The method has the advantages that first, the method uses a sponge structure externally, has a computable security boundary, provides three versions of parameter combination so as to meet application demands of different environments, and can provide from anti-collision of 40 bit to first preimage security of 128 bit; second, the affine transformation S box with an internal replacement structure is added with linearity layer confusion, so that the defect that the linearity layer of a similar PRESENT structure is too simple is overcome, the anti-statistical saturation attack ability of the internal replacement structure is enhanced, therefore, the overall security of the lightweight hash method is improved; and third, a non-linearity layer of the internal replacement structure adopts an S box of three bit with good differential characteristic, and the S box of three bit is lower in hardware overhead compared with an S box of four bit of a same type of lightweight hash function family.

The invention relates to a ZVZCS full-bridge three-port converter and a control method thereof, and belongs to the technical field of power electronic converters. The converter consists of a transformer, a primary side circuit and a secondary side circuit. The power management and control for three ports of the converter can be realized simultaneously by adjusting the duty ratio of four power switch tubes of the primary side circuit. A non-isolated buck-boost converter and an isolated full-bridge converter are integrated together, the reuse of a primary side switch tube is realized, the quantity of the switch tubes is reduced, and the power density is improved; moreover, a lag bridge arm of the full-bridge converter is serially connected with two diodes, a leading leg switch tube is connected with a parasitic diode and a junction capacitor in parallel, so that the leading leg switch tube realizes zero voltage switching, the lag bridge arm realizes zero current switching-off, the four switch tubes can realize soft switching respectively, and the switching loss is reduced, so that high frequency of the power converter device is realized. The ZVZCS full-bridge three-port converter isapplicable for new energy power generation systems, energy storage systems, electric vehicle power supply systems and the like.

The invention discloses thermal radiation resistant inflame retarded protective clothing fabric. From outside to inside, the fabric successively comprises a high-temperature insulating fiber texture layer, a thermal radiation resistant protection layer, a heat resistant inflame retarded fiber texture layer and a heat insulating layer. Compared with the existing technical scheme, the fabric disclosed by the invention has the characteristics of good thermal radiation resistance, light weight, high-temperature resistance, small shrinkage rate, good inflame retarded feature and mechanical property as well as friendly flexibility and elasticity; the good thermal radiation resistance, high-temperature resistance and inflame retardance as well as good mechanical property and separation resistance can be ensured under the condition of light weight; and the fabric is truly adaptive to application demands of high-temperature and dangerous operation places on inflame retarded protective clothing fabrics.

The invention relates to a control method of a back-to-back DC power transmission system accessed to a weak AC system. The method comprises the following content: 1, an inversion station employs variable AC voltage control, i.e., a DC voltage instruction value is determined through a DC power instruction value and a DC voltage operation value is determined through the DC voltage instruction value; 2, coordinated control of inversion station converter transformer tapping-off switches and reactive groups is performed; and 3, and coordinated control of rectification station converter transformer tapping-off switches and reactive groups is performed. According to the invention, safe and stable operation of a power grid is ensured, and the service life of the back-to-back DC power transmission system is also prolonged.

The invention relates to a visual display method for a power distribution network. The method is implemented between a client side and a server side and comprises the following steps: acquiring a current visual scene and judging whether the current visual scene is changed or not by the client side; submitting a corresponding visual scene request to the server side if the visual scene is changed; acquiring whole data of the power distribution network and calculating characteristics of the whole network by the server side; disposing the data required by the scene and then sending the data to the client side by the server side when the visual scene request is received sent by the client side; adopting different color display according to the data received to carry out visual display to the scene by the client side. The method is applied to the following five scenes: (1) distribution network topology visualization, (2) electrified area visualization, (3) pilot area visualization, (4) voltage grade visualization, and (5) circuit load rate visualization. The visual display method of power distribution network provides a uniform solution to visual scene of different distribution networks, can be configured and expanded, and can suitable for visual scene requirements of new distribution networks.

The invention belongs to the technical field of batteries, and relates to a battery management system structure applied to multiple strings of batteries. According to the invention, a single battery or binary battery is divided into an acquisition control unit, and a serial bus structure is expanded to different continuous voltage domains by a level conversion technology; and thus, the data communication and control of each voltage domain are realized, the topological mechanism of the whole battery management system is simplified, the reliability, flexibility and maintainability of the battery management system are greatly improved, and the cost of the whole battery system is reduced.

The invention provides a method for printing different sizes of paper, which includes the steps of acquiring the product of print density L and preset reference heating time T0, and figuring out heating time; acquiring the product of the print density L, a step-length coefficient A of a printer mechanism and preset reference step-length time S0, and figuring out the step-length of a paper feeding motor of a printer; and controlling the printer to print according to the heating time and the step-length of the paper feeding motor. The heating time and the step-length of the paper feeding motor are acquired on the basis of the print density value to control the printer to print on printing paper in the required density, so that printing effects can be controlled through setting the print density when printing paper is different, and application requirements of different sizes of paper are met.

The invention provides a fishing reel spool capable of being automatically regulated based on magnetic induction. The spool comprises a spool body, a first centrifugal assembly accommodated in the spool body, a second centrifugal assembly rotating in a manner of being meshed with the first centrifugal assembly, a magnetic induction ring arranged on the outer surface of the second centrifugal assembly in a sleeving manner, an elastic component fixed and propped into the second centrifugal assembly, and a first magnet and a second magnet with magnetism and magnetic poles oppositely arranged, wherein a gap is reserved between the first magnet and the second magnet, and part or the whole magnetic induction ring is accommodated in the gap. Magnetic induction lines in the gap are cut through using the magnetic induction ring with conductive properties, and the rotating speed of the spool body is regulated in combination with the elasticity of the elastic component, so that the purposes of automatically regulating the rotating speed, smoothness and speed variation amplitude of the spool body are achieved, and the spool breakage caused by non-smoothness or too-high speed in the casting process is avoided.

The invention discloses a twin-screw compressor with an intermediate air-pumping function and a multiple-temperature-zone heat pump system. The twin-screw compressor with the intermediate air-pumping function comprises a motor system, a compression system, and an air-discharging end seat, wherein the compression system comprises a male rotor, a female rotor, and a machine body; the motor system includes a motor housing, a variable frequency motor, and a connecting box arranged at the outside of the motor housing; and the air-discharging end seat is provided with an exhaust valve connection port communicating with the inside of the machine body. The multiple-temperature-zone heat pump system having the twin-screw compressor with the intermediate air-pumping function includes a high-temperature condenser, a low-temperature condenser, a first throttling valve, a second throttling valve, an evaporator, and the twin-screw compressor with the intermediate air-pumping function. According to the invention, heat sources with different temperatures can be provided by a single compressor.

The invention discloses a network customer service and pass management system based on doctor on-line interaction. The system comprises an application logic layer, a single sign-on unit, an object cache unit, a database, a background service unit, a synchronous service unit, a list item and a query and search unit which are mutually connected. The system can more effectively integrate the user resources of a platform, provides more convenient and professional service, can greatly improve the user experience, is favorable for establishing good use public praise, and contributes to wider popularization.

The invention discloses a double isolation device and method for multipath AD acquisition and belongs to the technical field of measurement and control. In the prior art, AD acquisition is realized with analog signal isolation or digital signal isolation being considered independently. The provided double isolation device isolates analog quantity of the input end of an AD convertor, so that influence of external noise is reduced, and input precision of the analog signal is improved; through digital isolation of the output end and control signals, safety of the AD acquisition is ensured; and the device has obviously-high reliability, highly-safe electric isolation, simple structure, flexible use, wide application range and higher application value.

The invention belongs to the technical field of electronics, and discloses a voltage fluctuation resistant delay switch circuit based on rising edge sampling, which comprises an input interface Vin +and an input interface Vin-, an output interface Vout +, an output interface Vout-, a resistor R1, a capacitor C1, a voltage stabilizing diode VD1, a resistor R2, an NPN triode Q1, a resistor R4, a capacitor C2, a resistor R5 and a P-MOS tube MQ1 and a voltage stabilizing diode VD2; the first end of R1 is connected with Vin +, and the second end of R1 is connected with Vin- through the C1, the negative electrode of the VD1 is connected with the second end of the R1, the positive electrode of the VD1 is connected with the base electrode of the Q1 through the R2, and the emitter electrode of theQ1 is connected with the Vin-, the first end of R4 is connected with the collector electrode of the Q1, and the second end of R4 is connected with Vin + through the C2; the first end of R5 is connected with the second end of R4, and the second end of R5 is connected with Vin +; the source electrode of MQ1 is connected with Vin +, the grid electrode of MQ1 is connected with the second end of R4, and the drain electrode of MQ1 is connected with Vout +; the positive electrode of the VD2 is connected with the second end of the R1, and the negative electrode of the VD2 is connected with the drainelectrode of the MQ1, and Vin- and Vout- are grounded.