168results about How to "Safe and reliable" patented technology

The invention provides an intelligent blind guiding method and device, electronic equipment and a storage medium, and relates to the computer technology, in particular to the technical field of intelligent blind guiding. According to the specific implementation scheme, the method comprises the steps of obtaining multi-modal sensing information; the multi-mode sensing information comprises images, videos, audios and pose information; preprocessing and fusing the multi-modal sensing information to obtain fused information; identifying the fusion information to obtain an identification result; the identification result comprises at least one of the following information: user surrounding environment information and user motion state information; and generating feedback information based on the identification result.

The invention discloses a CFB boiler flue gas denitration automatic control method and system. The control method comprises the following steps: S1, monitoring and controlling a CFB boiler by taking an operator station display as a center; s2, a nitrogen oxide emission value of a boiler tail flue in the CFB boiler is collected in real time to serve as a feedback value; s3, the feedback value is compared with a set target emission value, and the deviation value of nitric oxide at the flue gas outlet and the change rate of the deviation value are calculated; s4, constructing a fuzzy relation between the three PID parameters and the deviation and the change rate of the deviation value, and obtaining a new PID parameter; s5, the stroke of an ammonia water pump is dynamically adjusted according to the new PID parameters, and the amount of the urea solvent sprayed into the boiler is controlled; and S6, the stroke of a dilution water pump and the flow of dilution water are regulated and controlled. By means of early warning, control over spraying of the reducing agent and burdening in the boiler is achieved, it is guaranteed that the denitration system can change along with changes of the boiler operation load, and long-term, reliable and safe operation of boiler denitration is achieved.

The invention provides an intelligent medicine cabinet which comprises a cabinet body and a control device, the cabinet body comprises a control bin and a storage box body, the interior of the storage box body is divided into a plurality of drawer storage spaces through multiple layers of partition plates, and a drawer is arranged in each drawer storage space; fRID tag readers are arranged at the positions, corresponding to the drawers, of the middles of the isolation plates, and the FRID tag readers are connected with the control device. A plurality of box containing cavities are formed in inner cavities of one or more drawers except the drawers in the drawer containing space on the bottom layer, first storage boxes are placed in the box containing cavities, and weighing sensors corresponding to the first storage boxes are installed at the bottoms of the inner cavities of the box containing cavities. Structural modules are reasonably and perfectly arranged, links such as medicine storage and use can be strictly monitored, and medicine loss and abuse are effectively prevented.

The invention provides a vibration damping device of an auxiliary bridge parallel to a main bridge, which comprises a torsion type damping unit arranged between a main beam of the auxiliary bridge and a main beam of the main bridge adjacent to the auxiliary bridge, and the torsion type damping unit comprises a torsion type damper, a transmission assembly and a fixing assembly, the torsion type damper is installed on the side wall of the main beam of the main bridge through the fixing assembly, the transmission assembly comprises a dowel bar for transmitting vibration in the vertical bridge direction and the side bridge direction of the auxiliary bridge and a conversion swing rod for converting linear motion of the dowel bar into rotary motion, and the torsion type damper comprises a torsion shaft. The torsion type damper is connected with the side wall of the auxiliary bridge main beam through the torsion shaft, the conversion swing rod and the dowel bar which are hinged in sequence. The method has the advantages of improving the vibration reduction effect of the auxiliary bridge, reducing the using amount of the damper and the like.

The invention discloses a hand-operated self-lifting device for wire dropping of a power transmission line, which is applied to the field of high-altitude power transmission line operation and comprises an anti-falling device body, a grip, a driving rocking handle, an anti-falling chain, a buffer mechanism and the like. The anti-falling chain is wound on a specially-designed chain groove of the driving shaft body, and the shaft body is rotated by hand-cranking the driving rocking handle, so that the anti-falling chain smoothly lifts an operator. The anti-falling chain can relieve impact at the falling moment and protect safety of personnel and equipment, the hand-operated rocking handle is provided with the one-way transmission design of the ratchet wheel deflector rod and the gear ring, reverse rotation of the chain is prevented, the lifting chain groove structure, the limiting guide groove wheel and the blocking piece system are accurately matched, smooth operation of the anti-falling chain is guaranteed, blocking is prevented, and it is guaranteed that the lifting process is stable and reliable. And the O-shaped hook lock equipped with the anti-scraping protection pad can protect the power transmission line from being worn. The device is compact and light, is easy to carry and quick to deploy, and remarkably improves the safety of high-altitude operation and the reliability of the device.

The invention discloses an erecting method of a bridge girder erection machine for an ultra-small radius curve girder bridge, which comprises the following steps of: through a self-adaptive rotary front support leg, a middle support leg and a parallel connection, realizing that the maximum transverse movement amount of the front support leg is 57cm, the rotation angle is 2 degrees at the moment, and the front support leg and a track thereof are staggered by 15cm in the longitudinal bridge direction; meanwhile, the distance adjusting amount of the main beam of the bridge girder erection machine on the upper roller box of the middle supporting leg is + / -5cm, the maximum transverse movement amount of the front supporting leg reaches 253cm, and at the moment, the rotating angle is 8 degrees; the parallel connection adopts a hinged form and can adaptively rotate in the steering process of the bridge girder erection machine. The posture adjustment of the bridge girder erection machine under the ultra-small radius is realized through the alternate self-adaptive rotation and the parallel connection of the front supporting leg and the middle supporting leg. According to posture simulation of a bridge girder erection machine in boundary beam erection construction, the lateral anti-overturning stability and the safety of a middle supporting leg structure are checked, meanwhile, due to the fact that the bearing capacity of a small T-beam flange is limited, supporting cushion profile steel is lowered on a flange plate, and therefore cantilever erection of an ultra-small-radius lower boundary beam is achieved.

The utility model provides a fireproof structure of an assembly type light steel keel partition wall and beam column connecting joint, and relates to the field of building facilities, the fireproof structure of the assembly type light steel keel partition wall and beam column connecting joint comprises a beam column body and a light steel keel partition wall, and the light steel keel partition wall is tightly attached to the beam column body. Light steel keel shooting nails are arranged in the light steel keel partition wall at equal intervals, the light steel keel shooting nails penetrate through the light steel keel partition wall to be nailed into the beam column body, and alkali-resisting glass fiber gridding cloth is arranged on the surface of the light steel keel partition wall. According to the fireproof structure of the assembly type light steel keel partition wall and beam column connecting joint, the light steel keel is a framework, and the mechanical stability is good. The main body parts are connected in a mechanical anchoring mode, and compared with a traditional building mode, the safety performance is more reliable. Through cooperation of the T-shaped battens, the threaded columns, the base rods and the sliding pieces, the connecting effect of the beam column and the light steel keel partition wall is improved, and the overall firmness is improved. Fine sand is additionally filled in the T-shaped strip plate, so that the fireproof effect at the connecting joint is improved.

The belt buckle comprises a connecting base and a buckle head, the buckle head is provided with an adjusting mechanism for adjusting the tightening state of a belt, and when the occlusal surface of a pressing roller of the adjusting mechanism directly faces a supporting piece, the distance between the occlusal surface of the pressing roller and a rotating shaft is gradually increased in the direction from the rotating shaft to the connecting base, so that after the belt is tightly pressed by the occlusal surface, the belt is tightened by the buckle head. When the tail end of the belt is pulled out of the buckle head, the compression roller can be driven to rotate towards the direction of extruding the belt, so that the extrusion force between the occlusal surface and the belt is increased, and the self-locking effect of the buckle head on the belt is realized.

The invention relates to a data transaction security and privacy protection method based on a zero-knowledge proof smart contract. The method comprises the following steps: initializing block chain parameters; the seller and the purchaser register privacy identities with the credible supervision mechanism; a seller generates an ownership relationship of data to be sold and a zero-knowledge proof of a data ownership proof contract, links {alpha, # imgabs0 # T1, sign1}, and obtains an address on the link; the seller generates a zero-knowledge proof for preventing the machinability attack contract, verifies the zero-knowledge proof according to the uplink information, and releases information of the data to be sold after the zero-knowledge proof passes the verification; the method comprises the following steps: a purchaser requests purchase data from a seller, the purchaser generates a zero-knowledge proof of a data ownership privacy transfer proof contract according to a new ownership relationship calculated by the seller, verifies the zero-knowledge proof, obtains a ciphertext storage address of the purchase data, and links {alpha, # imgabs1 # T2, AddrMnew, add and sign2}. The method has better security and privacy characteristics.

The invention discloses a service system user behavior relativity abnormity detection method and system and related equipment, and the method comprises the steps: firstly obtaining user behavior log data from a plurality of service systems, carrying out the preprocessing, and extracting key features corresponding to different service systems; then, corresponding business knowledge is extracted, a knowledge graph is constructed according to the business knowledge, and entities and relationships in user behavior logs of different business systems are mapped into the knowledge graph; then, based on the constructed corresponding user behavior knowledge graph, learning features in the user behavior knowledge graph in a learning mode; then, on the basis of feature values extracted through learning, deep anomaly detection model training is completed in an unsupervised learning mode; and carrying out anomaly detection on user behavior logs collected in real time based on the trained depth anomaly detection model so as to intelligently judge user behaviors corresponding to the logs. According to the scheme, complex user behavior data in a multi-service system can be effectively processed, and efficient and accurate anomaly detection is realized.

The invention discloses a fabricated steel platform under a deepwater bare rock condition and a construction method of the fabricated steel platform. The fabricated steel platform comprises a gravel throwing and filling layer, counterweight concrete, a jacket, a top support and a steel truss. According to the platform, the weight of the jacket is increased by arranging the counterweight concrete, the stability problem of the platform in the marine environment is solved, the working procedure of constructing concrete anchor piles through a traditional jacket is avoided, meanwhile, the whole platform adopts the factory prefabrication concept, the lower structure and the upper structure are both machined and manufactured in a factory, and cost is reduced. The steel platform is transported to a construction site and assembled construction is adopted to form a formal steel platform, the offshore operation time is shortened, and the safety risk is reduced; the platform is high in construction efficiency, short in construction period and high in adaptability in deepwater sea areas with complex environments; the platform can be repeatedly used, can be used as various underwater foundation construction platforms after being simply modified, and is high in economical efficiency, wide in applicability and reliable in safety.

The utility model discloses a surface-mounted combined magnetic pole rotor structure for a shielding motor, which comprises a rotor sheath, first permanent magnets and a second permanent magnet, and the first permanent magnets are arranged on the two sides of the second permanent magnet. And the residual magnetism of the first permanent magnet of each pole of combined permanent magnet is smaller than that of the second permanent magnet, so that the cogging torque can be effectively reduced, and the radial air gap flux density is more sinusoidal, thereby improving the sinusoidal property of the counter electromotive force and reducing the ripple torque of the motor. According to the rotor structure, the thickness of each permanent magnet is equal, the rotor sheath is in interference fit with the permanent magnets, the safety of the permanent magnets is more reliable, the stator does not need skewed slots, and the torque density and the power factor of the motor cannot be reduced.

The utility model discloses a flare gas recovery power generation device which comprises a flare gas liquid separation tank, a Stirling generator set, a flare head and a controller, a flare gas outlet of the flare gas liquid separation tank is connected with the input end of a flare gas main pipeline, and the flare gas main pipeline is connected with a plurality of branch pipelines. The tail ends of the branch pipelines are connected with the torch head and one or more Stirling generator sets respectively, the Stirling generator sets are connected in parallel, first pressure regulating valves are arranged on the branch pipelines connected with the Stirling generator sets respectively, and safety regulating parts are arranged on the branch pipelines connected with the torch head. A pressure transmitter is arranged on the flare gas main pipeline, and the first pressure adjusting valve, the safety adjusting part and the pressure transmitter are in communication connection with the controller. The device is reliable in safety performance, small in occupied area, low in weight, low in cost and flexible in power utilization mode.

The present invention relates to a safety airbag for being mounted at the top of a vehicle, including: an airbag, having an inflated state and a stowed state, wherein the airbag includes a first airbag (11) and a second airbag (12) configured to be in fluid communication with each other, the first airbag (11) extending beyond the second airbag (12) in both the front and rear direction when the airbag is in the inflated state, the second airbag (12) having a recessed portion formed by a first side flank (121) and a second side flank (122) and used to accommodate an occupant head, and the safety airbag further including a guide (13, 13A, 13B, 13C) provided at a connecting position of the first airbag (11) and the second airbag (12), and the guide (13, 13A, 13B, 13C) being used to guide a gas flow of one of the first airbag (11) and the second airbag (12) towards the other. The safety airbag has a simple structure and low manufacturing costs.

The invention discloses a construction method of an embedded flower bed, comprising the following steps: reserving a flower bed hole on a building base; using a prefabricated mold to make a flower bed, the flower bed comprising a flower bed body and a lap beam, the lap beam comprising a protruding connecting steel bar; installing the flower bed into the flower bed hole; pouring concrete to the assembly surface of the flower bed and the flower bed hole to cover the connecting steel bar to form a whole. No on-site mold making is required, which reduces the work intensity, is conducive to improving work safety and construction efficiency, and is convenient for shortening the construction period. After the construction is completed, the flower bed is embedded in the building base to form a whole, has reliable safety performance, and can be used in high-rise buildings.

An automatic device for measuring run-out and perpendicularity of a turbocharger middle shell comprises an automatic measuring clamp jig installed above a plurality of layers of shockproof tables, a start button connected to the front of the automatic measuring clamp jig, a protective guard installed on the plurality of layers of shockproof tables, and a controller installed on the protective guard. The safety light curtain, the touch screen controller and the three-color indicator lamp are installed at the front end of the protective fence, and a PLC control cabinet and a displayer of a PC main control computer are fixed to the multiple layers of shockproof tables. Safety door locks are mounted on the double doors on the left and right sides of the protective fence; and a compressed air three-stage filter, a laser coding host and a PC (Personal Computer) main control computer are also arranged on the plurality of layers of shockproof tables. According to the utility model, the jumping and perpendicularity dimensions of the turbocharger intermediate housing product can be automatically measured, and the outflow of such defective products is prevented; moreover, the product information also has a binding storage function; the traceability of the product is realized; and meanwhile, the labor cost is saved, and the working efficiency is greatly improved.

The invention discloses an application of a secretory curl-associated protein 2 gene as a new target for treating uterine scars, the secretory curl-associated protein 2 gene (sFRP2) promotes the progress of the uterine scars, interferes, silences and inhibits the uterine scars, and the sFRP2 is knocked out, so that the occurrence and development of the scar uterus can be relieved, the pregnancy rate of women can be increased, and the adverse pregnancy outcome can be reduced. In order to further improve the curative effect that sFRP2 gene expression is inhibited by sFRP2-targeted small interfering RNA (issFRP2) so as to inhibit uterine scar formation, ionizable lipid, distearoyl phosphatidylcholine (DSPC), cholesterol and 1, 2-dimyristoyl-rac-glycerol-3-methoxy polyethylene glycol (DMG-PEG) are mixed and dissolved in ethanol according to a certain molar ratio, issFRP2 is dissolved in a citric acid buffer solution, and the issFRP2-targeted small interfering RNA (issFRP2) is added into the citric acid buffer solution so as to obtain a mixed solution; an ethanol phase and a water phase are mixed through a microfluid device, and the mixed solution is dialyzed in a PBS solution for two hours to prepare lipid nanoparticles. And then mixing the polycarbophil, the poloxamer and the lipid nanoparticles to prepare the composite hydrogel. The hydrogel can locally release sisFRP2 in the uterus, inhibit fibrosis, reduce collagen deposition and repair uterine scars. The hydrogel is good in biocompatibility and noninvasive, can realize slow release of the medicine, avoids repeated administration, has no obvious side effect on a maternal body and a fetus, and can also be used for other fibrosis-related diseases.

The invention discloses a composite electrolyte and a lithium battery. The composite electrolyte comprises a first lithium salt and a composite solvent, wherein the composite solvent contains ethylene glycol dimethyl ether (DME) and / or 1, 3-dioxolame (DOL) and a fluorine-containing ether compound, and the molar ratio of the total of the DME and the DOL to the fluorine-containing ether compound is 1: (0.2-10); the fluorine-containing ether compound is shown as a formula R1-O-R2 in the specification; in the formula, R1 is a fluorinated alkyl group or a fluorinated alkoxy alkyl group of C1-C10, and R2 is an alkyl group or an alkoxy alkyl group of any fluorinated C1-C5. According to the composite electrolyte, the number of cycles and the charge-discharge rate of the lithium metal battery can be remarkably improved, and the performance and the safety of the battery are improved.

A catheter assembly (1), an implant system, an implant delivery system and a method of use thereof. In the implant delivery system, an inner tube (120) is made of an elastic material, and an outer sheath tube (110) and a guidewire tube (130) are each made of a plastic material. A distal end portion of each of the outer sheath tube (110) and the guidewire tube (130) is shaped into a curved form to provide a curved channel for the inner tube (120). The inner tube (120) is elastically inserted through the curved channel. This dispenses with the need for bending control from an outer sheath tube control device (21) and an inner tube control device (22), reducing requirements and difficulties in designing them and thus resulting in cost savings. Moreover, it makes the implant delivery system more easily operable, safer and more reliable, with lower requirements on a surgical incision, and capable of delivering a stent through a curved access accurately to a designated site.

The utility model provides a split type extraction kettle for a traditional Chinese medicine supercritical extraction method, and belongs to the field of supercritical extraction. The problems that a traditional extraction kettle is large in dead weight, small in material strength exerting coefficient, poor in anti-fatigue performance and high in manufacturing and machining cost, and the metal machining requirement is high when integrated forming is adopted are solved. The utility model discloses a split-type composite lining structure which comprises an outer layer structure layer and a split-type composite lining structure layer, the outer layer structure layer wraps the outer side of the split-type composite lining structure layer, the split-type composite lining structure layer comprises a straight cylinder section lining and two end sockets, and the two end sockets are symmetrically arranged at the two ends of the straight cylinder section lining. The opening ends of the two end sockets are connected with the two ends of the straight cylinder section lining in a matched mode respectively. The method is mainly used for supercritical extraction of traditional Chinese medicines.

The utility model relates to a curtain wall plate technical field especially easy combination type curtain wall plate of hidden mode, the utility model adopts the technical scheme: including curtain wall plate main body cooperation board, the upper and lower sides of curtain wall plate main body cooperation board are equipped with symmetrical arc shape outside, the left and right sides of curtain wall plate main body cooperation board are equipped with one symmetry and the integrated mounting combination cooperation column respectively, the upper and lower sides of mounting combination cooperation column are equipped with the opening to the outside of combination stable connection groove of upward and downward direction with curtain wall plate main body cooperation board connection position, the end face of combination stable connection groove near curtain wall plate main body cooperation board one side position coincides with the outside end face of curtain wall plate main body cooperation board left and right direction, the utility model has the advantages that: can be carried out comprehensive steady quick combination with the sliding slot on the curtain board or mounting assembly of cooperation position, the whole installation operation is more convenient, and the precision of connection position is higher, and the firmness is better, and the cooperation position has reliable anti -loose effect.

The invention relates to the field of hydraulic systems, and discloses an oil-filled energy accumulator lossless online failure judgment method which comprises a temperature detection judgment method and a flow detection judgment method, and the specific temperature detection judgment method comprises the steps that S1, temperature sensors are installed, specifically, the temperature sensors are divided into a group A and a group B; s2, temperature information acquisition and comparison: a temperature sensor A and a temperature sensor B transmit acquired temperature parameters to an integrated computer so as to judge whether the energy accumulator breaks down or not; and S3, a temperature judgment result is obtained, wherein a corresponding processing mode is implemented according to a comparison result. Through the temperature detection and judgment method and the flow detection and judgment method, the working state of the oil-filled energy accumulator can be monitored online in real time, and the potential air leakage risk can be found in time. Compared with the traditional modes of air inflation maintenance every half a year, discovery after faults or regular manual detection and the like, the timeliness of risk discovery is greatly improved.

The invention relates to a two-degree-of-freedom series elastic drive lower limb rehabilitation apparatus which comprises a left lower limb rehabilitation assembly and a right lower limb rehabilitation assembly which are arranged side by side, and each of the left lower limb rehabilitation assembly and the right lower limb rehabilitation assembly comprises a supporting base and a leg fixing mechanism. The linear series elastic element driving mechanism and the rotary series elastic element driving mechanism are used for driving the knee joints and the ankle joints to bend and stretch respectively, and the airwave pressure air bags are worn on the legs. According to the technical scheme, the rotary series elastic element driving mechanism drives the foot pedal to rotate through gear transmission, and the linear series elastic element driving mechanism drives the leg fixing mechanism to integrally move through a ball screw, so that rehabilitation training of the ankle joint and the knee joint is achieved, and reliable safety is achieved; the rehabilitation time of the patient can be effectively shortened, and the rehabilitation training efficiency of the patient is improved.

The invention discloses an operation risk early warning method and device for power distribution network equipment and electronic equipment, and relates to the technical field of electric power systems or other related fields, the method comprises the steps that real-time operation data of target power distribution network equipment are collected, the real-time operation data comprise operation parameters of N equipment parts in the target power distribution network equipment, and the N equipment parts in the target power distribution network equipment are connected with the real-time operation data; n is a positive integer; determining the equipment risk level of the target power distribution network equipment through a preset risk assessment model and the operation parameters of all the equipment parts; and determining a risk early warning strategy and risk early warning information based on the equipment risk level, and sending the risk early warning information to the risk prevention and control client based on the risk early warning strategy. The technical problem that safe operation of the power distribution network cannot be guaranteed due to inaccurate operation risk early warning of the power distribution network equipment in related technologies is solved.

The utility model relates to electric power infrastructure technical field discloses a kind of movable temporary cable placing rack for electric power infrastructure, including placing frame, the outside of the placing frame is fixedly connected with jacking moving mechanism, the outside of the placing frame is fixedly connected with reinforcing anti-inclination mechanism, the jacking moving mechanism includes jacking box, the outside of the jacking box is fixedly connected in the outside of the placing frame, the inside of the jacking box is fixedly connected with fixed shaft, the outside of the fixed shaft is rotatably connected with down bar, the outside of the fixed shaft is rotatably connected with driven link. In the utility model, by down bar rotation, driven link, transmission link movement are driven, to make down seat press down, drive moving wheel to extend, thereby the effect of jacking up placing frame is realized, so that cable placing rack can be conveniently lifted when needing to move, facilitate position adjustment and quick installation in electric power infrastructure site.

The invention discloses a software code protection and adjustment system and method based on a digital encryption technology, and relates to the field of program control. According to the method, disassembling operation and primary analysis are carried out on each binary code in a binary software code set, and then each basic block forming the code is determined; meanwhile, a code execution process is determined, so that subsequent control flow adjustment is facilitated, and a basis is provided for subsequent adjustment of the position of the basic block; algorithm support is provided for subsequent replacement of variables in codes, logical transformation of all function basic blocks and position transformation of all basic blocks by constructing an obfuscation algorithm set, and meanwhile, complete transformation of logic structures and positions of the codes is ensured, so that the security of the codes is ensured; the source code is protected from being tampered or copied; and finally, the converted source code is encrypted, so that the security of the code is further ensured.

The invention provides a circulation security database agent system and method oriented to data controllable sharing, and relates to the technical field of database security control, the system comprises a database agent module, a database engine, a database client, an external authorization module, a rewriting rule module and a configuration storage module, and the database agent module analyzes the access request, rewrites the uplink message according to the rewriting rule and the configuration information, and transmits the uplink message to the database engine. And the rewriting rule module realizes specific rewriting of the strategy according to the user information of the original SQL message and the database information. And the external authorization control module is used for writing the authorization information into the configuration storage module so as to trigger authorization verification of the database agent. Aiming at four types of agent management and control strategies, the available time of a database, the number of query times, the number of rows of data returned by each query and the total size of query contents are specifically controlled.