155results about How to "Meet flexibility" patented technology

The invention relates to a vehicle-mounted hybrid energy storage device applied to urban rail transit. The vehicle-mounted hybrid energy storage device is connected with a power supply grid and is further connected with a train chief traction system and a train auxiliary system. The vehicle-mounted hybrid energy storage device comprises multiple sets of high-voltage half-bridge direct-current / direct-current converters, multiple sets of low-voltage half-bridge direct-current / direct-current converters, multiple sets of super capacitors for high-power discharge, multiple switching tubes for controlling pre-charge and terminal voltage, a storage battery pack which is formed by multiple storage batteries in serial-parallel connection and used for long-time discharge, and multiple sets of filter circuits for filtration. Compared with the prior art, the vehicle-mounted hybrid energy storage device disclosed by the invention can carry out self-traction by using the reserved power of the hybrid energy storage device when the power supply grid of vehicles is in an outage fault, so as to move the vehicles to a safe district to avoid a disaster. The vehicle-mounted hybrid energy storage device not only is small in size and light in weight, but also has the advantages of saving energy, reducing consumption, reducing energy consumption of the urban rail transit, improving economic benefits and the like.

The invention discloses an anti-falling self-locking mechanism for an exoskeleton robot. The robot comprises a first connecting rod and a second connecting rod; the anti-falling self-locking mechanism comprises an electromagnet, a pawl, a ratchet, and a spring, wherein the ratchet is fixedly arranged on the upper end of the second connecting rod, the electromagnet is fixedly arranged on the first connecting rod; a downward telescopic rod is arranged at the bottom of the electromagnet, the telescopic rod is connected with a contact terminal of the electromagnet, the lower end of the telescopic rod is rotatably connected with the pawl; a first pin shaft is fixedly arranged on the first connecting rod, the tail end of the pawl is rotatably connected with the first pin shaft, the front end of the pawl is matched with the ratchet; the upper end and the lower end of the spring are respectively connected with the pawl and the ratchet; and the pawl and the ratchet are laminated with each other under the pulling function of the spring; the stretching of the telescopic rod can be realized through the power-on / off of the electromagnet, thereby driving the pawl to break away from or fit to the ratchet. The anti-falling self-locking mechanism has the advantages that the mechanism can realize the one-way self-locking by use of the self-locking mode of the pawl and the ratchet, so that the human leg can move to the upright direction, the security and the reliability are high.

The invention relates to a cooperative transmission method of uplinks of secondary users in a cognitive radio system. The cognitive radio system comprises primary users, secondary users and a base station serving both the primary users and the secondary users. The cooperative transmission method comprises the following steps: selecting cooperative users undergoing cooperative forwarding from idlesecondary users according to the channel information; setting beamforming factors for the selected cooperative users according to the spectrum access mode of a secondary source user; and finding out the normalized eigenvector corresponding to the maximum eigenvalue to serve as the beamforming vector of a receiving array antenna of the base station by decomposing the H2H1PsW (H2H1PsW)H eigenvalue.Compared with the existing technical schemes, the technical scheme adopted by the invention has the following advantages: the cooperative transmission of the uplinks is realized through integration and reutilization of the idle secondary user resources, thus improving the transmission performance; and the scheme is simple and easy to realize and can meet the requirements of the cognitive radio system for high flexibility and instantaneity.

The present invention belongs to single eye visual sensor and its hand-eye relation quick calibrating method for welding robot. The sensor has mini CCD camera, light dimming and filtering system and motor driving system on support. The light dimming and filtering system has dimming lens and filtering lens set on lens rack and connected via movable link rod with driving arm; the motor driving system has driving motor connected to the speed reducer; and the light dimming and filtering system has its driving arm connected directly to the speed reducer. During the calibration of the inner and outer parameters of the CCD camera, the method of superposing the universal coordinate system and the robot coordinate system is adopted, and the expression of the camera outer parameters in the universal coordinate system is converted into that in welding robot end controlling point coordinate system to complete the hand-eye relation calibration of the welding robot.

The invention discloses a flexible dye-sensitized solar battery with stainless steel as the substrate and a preparation method thereof. The battery adopts seven-layer composite structure which comprises a flexible stainless steel substrate layer, an insulation film layer, a titanium film layer, a titanium dioxide natural layer, a titanium dioxide nano tube array layer, an electrolyte layer and a flexible counter electrode which are arranged in sequence from the bottom layer to the top layer, and dye molecules are embedded into the titanium dioxide nano tube of the titanium dioxide nano tube array layer. The insulation film layer is prepared on the flexible stainless steel substrate layer, then, the titanium film layer is prepared on the surface of the insulation film layer, and a stainless steel flexible photo-anode with the stainless steel substrate layer / insulation film layer / Ti film layer / TiO2 natural layer / TiO2 nano tube array layer can be obtained through anodic oxidation in water-base or organic electrolyte; after the heat treatment, dye sensitization is performed to the obtained stainless steel flexible photo-anode and electrolyte is dripped into the photo-anode, and after encapsulation, the flexible dye-sensitized solar battery with stainless steel as the substrate is obtained. The invention has the advantages of simpler preparation technique, high battery conversion efficiency and low cost.

The invention relates to a four-wheel drive steering control method and device. The control method comprises the following steps: acquiring turning radius of a vehicle body of an AGV and speed of onedriving wheel; calculating speeds of other driving wheels according to the turning radius of the vehicle body and speed of one driving wheel acquired, wherein a mathematical expression is described inthe specification, Vout is speed of a front outside driving wheel or a rear outside driving wheel of the AGV, Vin is speed of a front inside driving wheel or a rear inside driving wheel of the AGV, Wand L are distance between an inner driving wheel and an outer driving wheel and distance between a front driving wheel and a rear driving wheel of the AVG, respectively, and R is the turning radiusof the vehicle body; and according to the speeds of all the driving wheels, adjusting the speeds of all the driving wheels accordingly, so as to complete steering. The control method provided by the invention has the advantages that the turning radius of the vehicle body of the AGV and the speed of one driving wheel are acquired in real time, and the speeds of other driving wheels are calculated accordingly and are adjusted, so that steady steering of all the driving wheels is achieved, driving effect is improved, and a rollover phenomenon is avoided.

The invention discloses a system for a novel service platform of loose cloud nodes under a cloud computing network environment, and the system comprises a large-size cloud-node service central platform and at least one cloud client service subsystem, wherein each cloud client service subsystem at least comprises a cloud client service network or consists of a plurality of parallel cloud client service networks and / or cascade cloud client service networks, and each cloud client service network further comprises a plurality of working nodes and control nodes. The invention discloses an individualized and flexible system and a method, which can provide a great amount of cloud functional modules with different service functions to finally realize the cloud service capacity of the loose cloud clients by unifying module management of the cloud service module system, downloading and installing cloud modules from cloud nodes, issuing and uploading novel cloud modules and managing cloud module versions under the cloud computing network environment and under the situation that a great amount of loose cloud clients are in idle.

The embodiment of the invention discloses a vehicle control method. A vehicle comprises an onboard controller. A command relation is pre-stored in the onboard controller and is used for representing execution selections to disobeying commands of at least two controllers of the onboard controller. The method comprises step that the onboard controller receives a first command and a second command and determines the vehicle control command according to the command relation, the first command and the second command.

The invention discloses a method and a device for expanding an LPC (linear predictive coding) peripheral on the basis of a GPIO (general purpose input / output) interface. The method includes primarily communicating the LPC peripheral with the GPIO interface of a CPU (central processing unit) on the basis of a two-way asynchronous request-acknowledge handshake protocol; forwarding received messages to the lower-level LPC peripheral by the aid of a secondary synchronous handshake protocol or interrupting operation on an internal register; reversely initiating interrupt requests to the GPIO interface of the CPU if serial interrupt requests or internal interrupt requests of the LPC peripheral are received. The device comprises a GPIO and LPC interface module, an LPC bus protocol control module and an LPC serial interrupt control module. The GPIO and LPC interface module is connected with the CPU. The method and the device have the advantages that the LPC peripheral can be expanded easily and flexibly, a system can be expanded conveniently, communication is irrelevant to particular clocks, special requirements on a clock of the GPIO interface can be omitted, communication data are reliable, hardware resources can be saved, and the method and the device are transparent for upper-layer users.

The invention discloses a task processing method for a task platform. The task processing method comprises following steps: receiving a setting request for task conditions sent by a target account; providing a task setting interface according to the setting request for task conditions; receiving task information inputted in the task setting interface by the target account, wherein task information comprises a target application, an application server interface corresponding to the target application, and at least two pre-set subtask conditions and mission rewards corresponding to all subtasks; randomly generating target applications and task identifiers corresponding to subtasks or according to the pre-set configuration rule; and generating pre-set tasks according to task information and task identifiers. The invention further discloses a task processing device for the task platform. The task processing method for the task platform has following beneficial effects: different task conditions and different task rewards are configured for every different application; and universality and flexibility of configuration of task conditions are achieved.

The invention discloses a wearable thermoelectric generator with a hollow structure base and a manufacture method thereof. The thermal end face of a thermoelectric block array is connected with the copper electrode of a flexible printed circuit board, and the cold end face is connected with a copper conductive sheet. The thermoelectric block array is connected in series or serial-parallel with the cold end copper conductive sheet through the copper electrode. The manufacture method comprises the steps of flexible printed circuit board manufacturing and solder coating, thermoelectric block positioning and welding, cold end copper conductive sheet positioning and solder coating, thermoelectric generator cold end assembly and welding and the like. According to the invention, the circuit board increases the flexibility of the wearable thermoelectric generator; the number of rows of the thermoelectric block array and the number of thermoelectric blocks within each row are changed to meet the needs of different driving devices; a thermoelectric block positioning plate is used to prevent P-type and N-type thermoelectric blocks from moving during a welding process to ensure good contact with a conductive electrode; and the cold end copper conductive sheet is three-dimensionally printed and positioned, so that the thermoelectric blocks and the cold end copper conductive sheet are accurately corresponding in position and in good contact.

The invention relates to a system and method for the multilevel data protection oriented to loose cloud nodes in a cloud computing network environment. The method comprises the following steps: cloud node client software is installed on one server, a computing terminal or a large-scale loose cloud client so as to enable the server, the computing terminal or the large-scale loose cloud client to become a working node which can provide cloud node service ability; the working node downloads a plurality of corresponding cloud components so as to have a task processing ability corresponding to the cloud components; when the working node receives a task, the task is finished through the corresponding cloud components; and a task distribution side and the working node are in data communication through an asymmetric encryption algorithm. The system and the method have the advantages that the security and data isolation of task processing data are guaranteed in a collaborative task allocation and working mode of the cloud client, and the probability that the task processing data of the cloud client is embezzled and decrypted in a loose security network system is avoided.

The invention discloses a processor internal and external data exchange system of an embedded signal processing platform, which is mainly applied to the internal and external data exchange of the embedded signal processing platform based on programmable logic. The technical scheme adopted by the invention comprises a hardware part and a software part. The hardware part mainly comprises a data receiving and transmitting module which is self-developed according to an external data format, and the hardware part is hung on a bus to be used as one of peripheral equipment. The software part mainly comprises interrupt processing and DMA (Direct Memory Access) transmission. The invention has the advantages that the exchange of processor memory and external data is realized by utilizing the data receiving and transmitting module self-developed in an FPGA (Field Programmable Logic Array) and through the interconnection with an embedded system bus, thereby effectively simplifying the steps of inputting and outputting the external data to the memory, saving resources, markedly improving the data exchange rate and satisfying the requirements of large high-frame-frequency and multiband infrared image data quantity.

This invention relates to an oxygen supply system for generating oxygen from cabin air in an aircraft. The oxygen supply system exhibits a modular cabin unit (1) with an oxygen port (7) and a decentralized oxygen supply unit (2) with an oxygen outlet (13), wherein the decentralized oxygen supply unit (2) is set up in the modular cabin unit (1). The decentralized oxygen supply unit (2) is set up to generate oxygen- enriched air from the cabin air by means of electrical power, wherein the oxygen- enriched air can be provided to the oxygen port (7) of the modular cabin unit (1) via the oxygen outlet (13).

The invention discloses a method for network security detection in a complex network. The method comprises the following steps: positioning a network node in time and space; establishing a security attack detection database of node security abnormities in a network and corresponding solutions; based on a KDD algorithm, mining and analyzing network traffic and event density in historical access data of each node, and establishing a dynamic Poisson distribution model and setting a security threshold and a threat threshold of the network traffic and the event density; detecting access behavior of the nodes, and comparing monitoring values of the network traffic and the event density of the nodes with the security threshold and the threat threshold; if the monitoring values are smaller than the safety threshold, it being indicated that the behavior of the nodes is safe; if the monitoring values are greater than the safety threshold and smaller than the threat threshold, dynamically tracking working behavior of the nodes; and if the monitoring values are greater than the threat threshold, stopping access work of the nodes, and calling the security attack detection database to address security threats of the nodes.

The invention discloses an API user authentication method based on JWT authentication. The API user authentication method based on the JWT authentication comprises the following steps: S1, authenticating a user when the user logs in, obtaining a token and returning to a client after authenticating that the user passes; S2, creating interceptor middleware and authenticating the correctness of the token; and S3, adding the interceptor middleware to different routes according to service requirements. The invention uses the JWT authentication in the user login process, which effectively prevents client forging cookie information, therefore, the security of a project is improved; at the same time, the JWT authentication is used in a data interface, and the token expiration time can be configured according to a related service, thus, data security is improved and service flexibility is satisfied.

The invention provides a high-sensitivity intelligent robot skin. The high-sensitivity intelligent robot skin is characterized by comprising a composite layer, electrode layers and surface layers, wherein the composite layer is formed through doping a conductive monomer with macromolecules according to a certain ratio and compositing, the electrode layers are plated on both faces of the composite layer, and the surface layers wrap the surfaces of the electrode layers; the conductive monomer at least comprises conductive micro-springs. According to the high-sensitivity intelligent robot skin, conductive carbon fibers and a polymer composite technology are used, so that the high-sensitivity intelligent robot skin has the characteristics of flexibility and multidimensional sensitivity of human skin and meets the requirements of robot skin on high sensitivity, flexibility and multifunction, and the tactile sense of the human skin is more closely simulated.

The invention provides a polyurethane adhesive used for a composite fluoroplastic film. The polyurethane adhesive is formed by compounding of 100 parts by weight of acrylic acid modified polyurethane prepolymer, 2-5 parts by weight of a curing agent and 0.1-0.5 part by weight of a catalyst. The preparation method of the polyurethane adhesive includes: mixing polycarbonate diol with isophorone diisocyanate to undergo reaction, then conducting curing to obtain a polyurethane prepolymer; subjecting the polyurethane prepolymer and an acrylic monomer to reaction in an organic solvent under the action of an initiator, thus obtaining the acrylic acid modified polyurethane prepolymer; and adding the curing agent and the catalyst into the acrylic acid modified polyurethane prepolymer, and mixing them uniformly to obtain the polyurethane adhesive. Experimental results show that, when the polyurethane adhesive is used for bonding of a fluoroplastic film with other resin (like polyurethane resin, ethylene-vinyl alcohol copolymer, polyester resin, nylon and the like) films, textiles and other flexible materials, the peel strength is higher than 6N / cm.

The invention belongs to the technical field of aerospace engines, and particularly relates to a rocket-based detonation and ramjet combined cycle engine and a using method and application thereof. The combined cycle engine comprises a center cone (1), a shell (2) and an exhaust nozzle (3) which are connected in sequence, the bottom of the center cone (1) extends into the shell (2) to be connectedwith a fixed partition plate (5), and an adjustable air inlet channel (4) is formed by the cone part of the center cone (1) and the inner wall of the shell (2). A rocket engine (8) and an annular detonation and ramjet combustion chamber (7) annularly surrounding the rocket engine (8) are arranged in the shell (2). The advantages of the rocket engine, a ramjet and rotary detonation combustion propulsion can be brought into full play, and the multi-mode combined propulsion requirements of efficient air-suction flight of a non-aerospace vehicle in the atmosphere and cross-atmosphere rocket orbitinjection flight can be met.

Provided are a carboxyl group-containing polyimide and a prepolymer thereof, and the carboxyl group-containing polyimide can provide a cured product that simultaneously exhibits heat curing properties, PCT resistance, solvent resistance and peel strength. The present invention relates to an imide prepolymer containing a terminal acid anhydride group and characterized by being obtained by reacting an acid anhydride group in a tetracarboxylic dianhydride with an isocyanate group in a diisocyanate compound. The present invention also relates to the carboxyl group-containing polyimide characterized by having a structure in which the aforementioned imide prepolymer containing a terminal acid anhydride group undergoes chain extension via a polyol compound. Furthermore, the present invention relates to a heat-curable resin composition and a flexible metal-clad laminate that use the carboxyl group-containing polyimide.

The invention relates to a contact test analysis system suitable for a rotary mill cylinder. The system comprises a mill cylinder at the external of a mill, and a rolling monitoring device in rollingcontact with the mill cylinder; motion signals of the mill cylinder are connected with a mill data processing device, a single-chip, a power spectrum analyzer and a characteristic identifier of an online monitoring and analyzing system through the rolling monitoring device in sequence; an output end of the characteristic identifier is connected with a mill parameter adjuster and a recording / displaying device; and the mill parameter adjuster is connected with the single-chip. The system can be adapted to a working state monitoring principle in a ball mill in a rotary working state, and predictsthe working state of the ball mill to overcome the problems in traditional ball mill state monitoring.

The invention discloses an optical scanning probe for endoscopic OCT (optical coherence tomography) imaging. The optical scanning probe comprises a holding portion with a photoelectric interface, and the front end of the holding portion is connected with an MEMS (micro-electromechanical systems) optical scanning probe for endoscopic OCT imaging through a connecting portion. With the MEMS optical scanning probe, the endoscopic use of the OCT imaging technology is realized; an OCT optical image is capable of entering a narrow body cavity or a narrow pipeline in the industrial field; and various suspected diseased tissues or samples are capable of being accurately scanned to acquire optical coherence tomography images of the suspected diseased tissues or the samples for further diagnosis. The optical scanning probe is particularly applied to the biomedical field, biological tissue sampling and slicing is eliminated, and thus, patients' pain is greatly relieved, and detection time is reduced. The endoscopic probe utilizes the MEMS technology to miniaturize the optical scanning probe, and thus, the diameter of an endoscopic insertion portion is greatly reduced.

The invention provides a privacy protection method used based on mobile terminal networking. The method comprises the following steps of: monitoring whether a program is executing privacy operation; if yes, judging the current networking mode of a mobile terminal is a data connection mode or a WIFI connection mode; when the mobile terminal is in the data connection mode, executing the privacy operation; when the mobile terminal is in the WIFI connection mode, switching the networking mode to the data connection mode and executing the privacy operation; and when the privacy operation is monitored to be finished, switching the networking mode from the data connection mode to the WIFI connection mode. The invention further provides a privacy protection system used based on mobile terminal networking. The privacy protection system comprises modules, which are capable of executing instructions, of a computer so as to perform the method. According to the invention, the safety problem caused by that privacy information is applied to an unknown route before special encryption processing is well solved, and the information safety of consumers is well protected.

The invention relates to an intelligent modular efficient heat treatment method. The method comprises a heat treatment database management system, an intelligent control system, an electronic code scanning module and an execution production system; the intelligent control system comprises a supervision control stage and a basic automation control stage, the supervision control stage receives a heat treatment process and transmits the heat treatment process to the basic automation control stage, the basic automation control stage controls equipment to finish the heat treatment process, and situations are uploaded to the supervision control stage through the basic automation control stage; the execution production system comprises an intelligent conveying module, an intelligent charging module and an intelligent heat treatment module; the electronic code scanning module comprises an electronic code scanning device; the intelligent conveying module comprises an intelligent conveying trolley, and the intelligent conveying trolley is used for conveying a product under control of the intelligent control system; the intelligent charging module comprises an intelligent detection device, and the intelligent detection device is used for guiding the trolley to do corresponding actions; and the intelligent heat treatment module comprises a heat treatment device and a temperature measuringdevice. According to the intelligent modular efficient heat treatment method, the defects that in an existing heat treatment process, the labor cost is high, the energy consumption is large, the heattreatment quality of batched pieces is unstable, and the labor intensity is high are overcome.

The invention provides an integrated network cell management system and its handling method therefore, wherein the system comprises a device panel interface for realizing device type determination, device panel assembly calling, integration call of allocation administration and performance administration, the device panel drafting and current device status display are realized through the device panel assembly.

The present invention discloses an airborne dropsonde nuclear radiation monitoring device, and relates to the field of the marine environmental monitoring technology. The device comprises a housing, a communication module antenna is arranged at the outer side at the upper end of the housing, and an air bag sleeves the communication module antenna; and the housing is provided with a control module, a communication module, a nuclear radiation sensor, a releasing mechanism, a CTD sensor, a sensor power supply and a flexible water sail, and a parachute is arranged at the outer side at the lower end of the housing. The monitoring device is able to be delivered to sea areas where monitoring personal are not convenient to get or cannot get for performing on-site real-time emergency monitoring of a total nuclear radiation amount through adoption of an airplane air-drop mode; and moreover, the airborne dropsonde nuclear radiation monitoring device is able to satisfy the flexibility, the diversity and the mobility of real-time monitoring of sea nuclear radiation and is applicable to new task demands.

The invention discloses a thermoplastic composite board and a manufacturing method thereof. The thermoplastic composite board has set lateral width, longitudinally and continuously extends, and is coiled into a roll or is cut into blocks. The thermoplastic composite board comprises an enhanced skeleton, wherein a thermoplastic material layer is covered out of the enhanced skeleton. The manufacturing method comprises the following steps: (1) leveling the surface bend of the continuously-conveyed enhanced skeleton, and carrying out unoiling and derusting processing; (2) heating the enhanced skeleton, coating conglutinant resin material, and forming a binding layer after the conglutinant resin material is solidified; (3) conveying the enhanced skeleton to a formed mould, extruding the thermoplastic material, and successively coating out of the binding layer to obtain the board; and (4) shaping the board to obtain the thermoplastic composite board. The thermoplastic composite board disclosed by the invention has equivalent strength and rigidity and equivalent buffer performance, and can achieve good safety protection effect. The manufacturing method has the advantages of high production efficiency, simple technology and low production cost.

The invention relates to a three-phase dry-type transformer based on an adjustable insulator outgoing structure. The transformer comprises a transformer body. A fixation frame is arranged on the transformer body. An adjustment mechanism is arranged on the upper end of the fixation frame. Mobile pay-off mechanisms are symmetrically arranged on the left and right ends of the adjustment mechanism. The middle of the front end of the fixation frame and the front end of the mobile pay-off mechanisms are provided with insulators. The transformer provided by the invention solves the problems that in the temporary circuit test process of the existing three-phase dry-type transformer a the installation of insulators needs to be adjusted when power lines of different standards and structures are connected with the transformer; the use of a traditional transformer requires insulators to be removed to determine the installation location; frequent removal and installation of insulators can easily lead to loosening of the installation location; and b when the installation location of insulators changes, wires are heated and the temperature between twisted wires increases during a test, which maycause a fire and affects the use flexibility of the transformer.