760results about How to "Avoid access" patented technology

The invention relates to the technical field of battery testing, and discloses a truck lithium battery testing method and device based on Bluetooth communication. The method comprises the following steps: performing intelligent remote matching processing on Bluetooth identification information of a truck lithium battery management system to obtain a remote Bluetooth control key, and performing lithium battery data acquisition protocol test processing to obtain a dual-channel acquisition instruction set; performing dynamic voltage, current and temperature cooperative acquisition processing on the dual-channel acquisition instruction set to obtain a multi-dimensional battery working condition characteristic spectrum; remote parameter linkage calibration processing is carried out on the multi-dimensional battery working condition characteristic spectrum, an intelligent calibration control sequence is obtained, remote charging and discharging management test processing is carried out, and a battery running state monitoring record is obtained; and performing remote health assessment processing on the battery running state monitoring record to obtain a lithium battery performance test report. According to the lithium battery testing scheme, physical connection is not needed, operation is easy and convenient, and the real-time monitoring capability is achieved, so that the testing efficiency and flexibility are improved.

The invention relates to the technical field of Internet of Things terminals, and discloses an Internet of Things equipment security access method based on a mobile communication network, which specifically comprises the steps of Internet of Things equipment identity authentication, Internet of Things equipment permission setting, encryption of data transmitted by Internet of Things equipment, and encryption of the process of data transmission of the Internet of Things equipment. A data backup and recovery system is established through a safety auditing system and auditing log management of the system, and the operation state, network communication quality and the like of the Internet of Things equipment are monitored and analyzed in real time through a performance monitoring system and then optimized. The method can enhance the security of equipment identity authentication, improve the confidentiality and integrity of data transmission, reduce the security risk and vulnerability utilization, improve the flexibility and expandability of the system, enhance the defense capability and emergency response speed of the system, and improve the user experience and data reliability. And the security and the reliability of the Internet of Things equipment when the Internet of Things equipment accesses the mobile communication network are ensured.

The invention relates to the technical field of battery protection, in particular to a UPS (Uninterrupted Power Supply) battery pack with a fireproof function, which comprises a shell, a placement frame and the like, an opening is formed in the front side of the shell; a placement frame is slidably connected in the shell; and a plurality of clapboards are arranged on the placing rack. When a certain battery abnormally heats, the temperature detected by a temperature sensor rapidly rises, at the moment, an electromagnet stops fixing a push block, the push block turns over to push a limiting block away from a first groove, a placement frame and a wiring board are pushed to move forwards through a first elastic piece, and the placement frame and the wiring board are fixed. The abnormal battery is limited by the pushing block which is overturned to be in a transverse state, so that the abnormal battery cannot move forwards along with the placing frame, the intact battery can move forwards along with the placing frame, and after the placing frame is pushed away from the shell by the first elastic piece, the abnormal battery loses the support of the partition plate and falls into the isolation cavity. The abnormal battery is extinguished and cooled through the extinguishment dry powder in the isolation chamber, so that the undamaged battery is prevented from being affected by spontaneous combustion of the abnormal battery.

The utility model discloses an orifice protection device for a cast-in-situ bored pile, and mainly relates to the field of building pile construction. Comprising a protection body, the protection body comprises a bottom frame and a top frame, a plurality of side frames are arranged between the bottom frame and the top frame, a cover plate is rotationally connected to the top frame, a warning assembly is arranged on the cover plate, a through hole is formed in the bottom frame and located below the cover plate, a plurality of fixing rods are arranged on the edge of the bottom frame, and the fixing rods are arranged on the bottom frame. A baffle is movably connected to the side frame. The protective structure has the advantages that the technical problem that an existing protective structure is insufficient in protective effect on the orifice can be solved, the protective structure is firmer, dislocation and movement caused by external wind power and the like are not prone to occurring, the protective effect on the orifice is improved, favorable support can be provided for the lower portion of a guide pipe and perfusion in the later period, and the service life of the guide pipe is prolonged. And the convenience of pile body pouring is ensured.

The invention relates to the technical field of TPE particle processing, and discloses automatic material taking and transferring equipment for TPE particle processing, which comprises a mechanical claw, the outer wall of the mechanical claw is rotatably connected with a rotating frame, the bottom of the rotating frame is fixedly connected with a fixed plate, the bottom of the fixed plate is provided with a shaking mechanism, and the bottom of the shaking mechanism is rotatably connected with a top plate. A stable grabbing assembly used for stably grabbing bagged TPE particles is arranged in the top plate, and a discharging assembly used for conducting side face cutting and discharging on the bagged TPE particles is arranged in the top plate. The multiple grabbing insertion rods are inserted into the bagged TPE particles through the sharp ends after rotating by 90 degrees, the weight of the bagged TPE particles can be more evenly shared, shaking and falling of the particles in the material taking process are reduced, and therefore the material taking stability is improved, the pressure on packaging bags is dispersed through the two-side insertion mode, and the packaging efficiency is improved. The risk that the packaging bag is broken or torn is reduced, and material leakage and waste can be reduced.

The present invention relates to a weather-resistant and anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of polymer materials. The pipeline adopts high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fiber, carnosic acid, zinc glycyrrhetinate, antioxidant 1010, hindered amine light stabilizer, polydimethylsiloxane titanate cross-linked polymer, 3-methacryloxypropyl triethoxysilane as raw materials; wherein, polyimide resin powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed, and then modified at 300°C to 350°C for 30min to 60min to obtain a modified product, which can better improve the weather resistance and aging resistance of the pipeline. Each component is compatible with each other, and a special modified preparation method is adopted to better play the synergistic effect of the components, and greatly improve the weather resistance and aging resistance of the polyethylene pipeline.

The invention discloses a DHCP (Dynamic Host Configuration Protocol) security protection method and device combining an access position and third-party authentication, which effectively identify and prevent the access of illegal equipment through identity authentication and an access position binding mechanism and reduce the possibility of implementing network attacks by fake identity or disguised equipment. And through real-time abnormity monitoring and alarming, the difficulty of tracing after the event is reduced. According to the method, the configuration of the client does not need to be changed, an operator can quickly deploy and implement, and the existing network architecture does not need to be modified on a large scale. Through the automatic authentication and binding process of the system, the operation burden of an administrator is relieved, and the overall management efficiency is improved. According to the embodiment of the invention, through detailed recording and unique binding of each access device, an accurate device access history can be provided, and tracking and responsibility investigation can be conveniently carried out when a security event occurs. The scheme only depends on the existing network facilities, no extra hardware equipment needs to be purchased for implementing the scheme, and the implementation cost is reduced.

The invention relates to the technical field of eutectic equipment, in particular to an elastic suction nozzle assembly, eutectic equipment and an eutectic method. The elastic suction nozzle assembly comprises a base, at least two suction nozzles arranged on the base and elastic assemblies arranged corresponding to the suction nozzles. The suction nozzle comprises a connecting section and a working section which are connected; two ends of the elastic component are connected with the base and the connecting section of the corresponding suction nozzle; the base is provided with a through avoiding channel, the working section is movably located in the avoiding channel, and the working section penetrates through the avoiding channel from one side of the base and is exposed out of the other side of the base. The working section is provided with a vacuum air path and a perspective window arranged corresponding to the vacuum air path; external light can pass through the perspective window and the vacuum air path in sequence and then penetrate out of the adsorption opening of the suction nozzle. According to the scheme, multiple chips can be mounted and elastically abutted at the same time, the positions of the chips are allowed to be obtained in the mounting process, so that the chips are adjusted in real time, and efficient mounting and real-time calibration capacity of the multiple chips are achieved.

The utility model relates to the technical field of access control, and discloses a mounting seat for a face recognition access control machine, which comprises a protective shell, a ventilation component is arranged on the inner side of the protective shell, filter components are arranged inside the left side and the right side of the protective shell, and an electric push rod is fixedly connected inside the rear side of the protective shell. Rotating rods are rotationally connected to the left side and the right side of the top end of the electric push rod correspondingly, connecting rods are rotationally connected to the bottoms of the two rotating rods correspondingly, fixing blocks are fixedly connected to the front portions of one ends of the two connecting rods correspondingly, clamping plates are fixedly connected to the front sides of the two fixing blocks correspondingly, and rubber pads are slidably connected to the interiors of the opposite sides of the two clamping plates correspondingly. According to the utility model, the two clamping plates move oppositely to fix the access control machine in the protective shell, so that the access control machine is protected and prevented from being damaged, the filter plate can prevent dust from entering the protective shell, and the filter plate can be detached to be cleaned to keep the filtering effect.

The invention discloses a shield tunneling machine cutterhead cleaning device. The shield tunneling machine cutterhead cleaning device comprises a shield tunneling machine shell and a storage protection mechanism. A cutter head is arranged at the left end of the shield tunneling machine shell, cutter heads are arranged in mounting holes in the surface of the cutter head, and a mounting frame is arranged on the inner arc surface of the shield tunneling machine shell; the storage protection mechanism comprises a storage shell, a first sliding plate, an adjusting shell and supporting plates, the storage shell is arranged on the inner arc face of the mounting frame, the first sliding plate is slidably connected to the interior of the storage shell, the adjusting shell is rotatably connected to the middle of the first sliding plate, and the supporting plates are arranged on the inner arc face of the adjusting shell. According to the shield tunneling machine cutterhead cleaning device, the cleaning spray head can be conveniently stored in the protection shell in a horizontal state, long-time exposure of the cleaning spray head is avoided, external dust is prevented from entering a water outlet of the spray head, the probability of blockage of the cleaning spray head is reduced, normal work of the shield tunneling machine cutterhead cleaning device is guaranteed, and high-pressure cleaning water flow flushes stubborn stains at different angles.

The utility model relates to the field of active filtering devices, in particular to a low-energy-consumption active filtering device, which comprises a low-energy-consumption active filtering device body, an assembly for bearing and installing the active filtering device, and a fixing bolt which penetrates through the outer part of the low-energy-consumption active filtering device body and is used for connecting and installing a front packaging cover. The low-energy-consumption active filter device is provided with the inner filter frame, the built-in filter screen, the driving controller, the heat dissipation opening, the heat dissipation fan blades, the connecting rod and the miniature telescopic air pump, and the heat dissipation fan blades of the heat dissipation opening of the low-energy-consumption active filter device in an unstarted state are in a closed state, so that external dust can be prevented from entering the low-energy-consumption active filter body; after the low-energy-consumption active filter device is started, the driving controller controls the micro telescopic air pump to drive the connecting rod to stretch up and down, so that the connecting rod is linked with the heat dissipation fan blades to be unfolded in the heat dissipation openings, and the heat accumulated in the low-energy-consumption active filter body can be smoothly discharged through the heat dissipation openings in the two sides by opening the heat dissipation openings.

The utility model relates to a heat dissipation and flow guide structure, and provides the heat dissipation and flow guide structure for the charging cabin of the unmanned aerial vehicle, which comprises a cabin body, a shell, a charging seat, an integrated module and the like, a shell is fixedly arranged on the upper left portion of the cabin body, a control panel is arranged on the upper portion of the shell, an integrated module is arranged on the upper rear portion of the cabin body, an inner groove is formed in the cabin body, an E-shaped charging base is fixedly arranged in the inner groove, and the charging base and the inner groove are matched to form two charging grooves which are symmetrical front and back. During use, after airflow introduced by an air inlet fan is shunted by the flow guide cover and the T-shaped groove, part of the airflow takes away heat through a transverse airflow channel formed by the fin rays, and the other part of the airflow enters the flow guide groove of the U-shaped plate, so that the heat of the contact seat conducted by the heat conducting plate I and the heat of the charging bin conducted by the heat conducting plate II are combined; and finally, the air is discharged by the air outlet fan through the air transmission opening and the L-shaped groove, so that comprehensive heat dissipation of the charging seat, the contact seat and the charging cabin position in the charging cabin is realized, and the heat dissipation efficiency is effectively improved.

The invention relates to the technical field of cable wires, and discloses a high-flame-retardant cable wire and a preparation method thereof. Comprising the following cable raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 30-40 parts of low-density polyethylene, 20-35 parts of modified nano magnesium hydroxide, 2-4 parts of an ultraviolet light initiator, 0.5-5 parts of a phosphorus-nitrogen flame-retardant assistant crosslinker, 0.5-1.2 parts of an antioxidant and 1-2 parts of a lubricant. Vulcanizing by a press vulcanizer, carrying out ultraviolet irradiation crosslinking, and extruding into a wire rod by an extruder. After the phosphorus-nitrogen flame-retardant assistant cross-linking agent and the modified nano magnesium hydroxide are cross-linked with the ethylene propylene diene monomer, the polyethylene and the like, a flame-retardant effect is achieved through synergistic cooperation, so that the prepared cable wire has relatively good flame-retardant property and relatively good mechanical property, is low-smoke, halogen-free, safe and environment-friendly, and is suitable for large-scale industrial application.

The utility model provides a building ventilation dustproof pipeline convenient to ventilate, which belongs to the technical field of ventilation dustproof pipelines and comprises a pipeline. The first dustproof pipe is fixedly connected to the side end of the pipeline; the second dustproof pipe is in threaded connection with the side end of the first dustproof pipe through a bolt, and the side end of the second dustproof pipe is fixedly connected with a connecting pipe; the frame is fixedly connected to the side end of the connecting pipe, the fan blades are fixedly connected to the side end of the frame, an adjustable baffle and a valve are installed, a user can accurately control the ventilation quantity and the airflow direction according to actual requirements, unnecessary airflow loss is avoided, and therefore energy is saved. Due to improvement of the sealing performance, interference to indoor and outdoor environments is reduced, energy loss caused by airflow leakage is reduced, and the energy utilization efficiency of the system is further improved.

The invention discloses a security protection method for cascade mutual trust of industrial Ethernet switches. A communication path is ensured to be clear and controllable through physical connection and logic networking configuration; a unique identity label is provided for the switch by using the information label of the main device, and illegal access is prevented; a management port is monitored in real time through an equipment load security mirror image, and illegal equipment is found and processed in time; constructing a logic security chain model, and realizing a unified mutual trust mechanism of network equipment; and distributed decentralized storage is carried out by adopting a block chain technology, so that the data is ensured to be safe and cannot be tampered. The system comprises a device connection configuration module, a main device information label generation module, a trusted edge device access management module, a device load security mirror image management module, a device security portrait and logic security chain construction module, a data storage and security module and the like, provides comprehensive security protection for industrial Ethernet switch cascading, and ensures network stability and security.

The invention relates to the technical field of fireproof glass, in particular to a nano composite material coating and a preparation method for applying the nano composite material coating to a surface film layer of an initial substrate for single-piece non-heat-insulation fireproof glass. The nano composite material coating is prepared from the following raw materials in parts by weight: 50-80 parts of nano composite oxide, 10-15 parts of a toughening material, 15-30 parts of molten glass and 1-5 parts of a fluxing agent; the preparation method comprises the following steps: S1, by taking a fluxing agent as a medium, mixing a nano composite oxide and a toughening material, grinding for 1-2 hours, adding a glass melt into the mixture, continuously grinding for 2-3 hours, heating to 180-220 DEG C, carrying out heat treatment, and removing the fluxing agent, so as to obtain a nano composite material; and S2, depositing on the surface of the glass substrate by adopting a physical vapor deposition method or a chemical vapor deposition method to form the nano composite material coating. According to the nano composite material coating prepared by the method, the toughness and the impact strength of the glass are improved, the fire-resistant integrity time of the glass is prolonged, and meanwhile, the light transmittance and the ultraviolet radiation resistance of the glass are better.

The invention discloses a rapid cooling post-welding reinforcing device for V-method casting, which comprises a base, a support plate, a sand mold bearing assembly, a forming assembly and a vibrator, the support plate is mounted at the top end of the base, the vibrator is mounted on the outer surface of the sand mold bearing assembly, the sand mold bearing assembly comprises a sand box mounted at the top end of the support plate, and the sand box is filled with fine sand; the device comprises a sand box, fine sand is arranged in the sand box, a plurality of reinforcing plates are uniformly placed in the fine sand in the sand box, a plurality of blanking holes are formed in the outer surfaces of the reinforcing plates, the reinforcing plates are laminated, and a connecting rope is mounted between every two reinforcing plates. The reinforcing plates are arranged in the sand box, so that the reinforcing plates can fill the sand layer in a layered manner, the sand layer can be effectively supported and fixed, and the sand layer is prevented from being deformed or collapsed due to impact and pressure of molten metal in the pouring process.

The invention relates to the field of switch cabinets, and particularly discloses an easy-heat-dissipation low-voltage switch cabinet which comprises a cabinet body and a cabinet door hinged to the cabinet body, heat dissipation holes are formed in the side wall of the cabinet body, a dustproof device is arranged on the outer side of the cabinet body, and the dustproof device comprises a connecting frame and a filter screen fixedly connected to the inner side of the connecting frame. The filter screen right faces the heat dissipation holes, an upper brush strip and a lower brush strip are attached to the upper end and the lower end of the filter screen respectively, the upper brush strip and the lower brush strip are arranged on the side, close to the cabinet body, of the filter screen, one end of the upper brush strip and one end of the lower brush strip are connected with cleaning racks, the other end of the upper brush strip and the other end of the lower brush strip are jointly provided with a guide rod in a penetrating mode, and the guide rod is fixedly connected with the connecting frame. And a cleaning gear is engaged between the two cleaning racks, the cleaning gear is rotationally connected with the connecting frame, a driving motor is installed on the side, away from the cabinet body, of the connecting frame, and an output shaft of the driving motor is connected with the cleaning gear. The filter screen can be automatically cleaned so as to improve the heat dissipation efficiency.

The invention relates to the technical field of information security, in particular to an anti-attack global quantum security key supplement method. According to the scheme of the invention, the access base station is responsible for distributing the key centers for the quantum security terminal, and the distribution mechanism reduces the pressure of a single key center and also reduces the risk of being attacked because an attacker is difficult to predict which key center the terminal is to be connected with. And when receiving the key distribution request, the key center verifies the device ID of the terminal. Only the terminal with the legal device ID can obtain the key, so that the access of the illegal terminal and the key stealing are effectively prevented. An illegal terminal cannot forge a normal key distribution request, and due to the verification of the device ID, even if the quantum security terminal is restarted after distribution, the key can be normally supplemented through re-authentication.

The utility model discloses a waterproof case, and belongs to the technical field of computer packaging. According to the utility model, the problems that the existing sealing strip between the connecting surfaces of the case shifts and the waterproof performance fails due to the increase of the immersion depth and the immersion time, the increase of the pressure and the increase of the pressure time are solved. The sealing structure comprises a storage cavity, a sealing groove, a sealing strip, a pressing convex block and a panel, setting two mutually connected panels as a first panel and a second panel respectively; the sealing groove is formed in the first panel; the pressing convex block is arranged on the second panel; the pressing protruding block extends into the sealing groove to limit the sealing strip and press the sealing strip in the sealing groove. Under the conditions that the immersion depth is increased, the immersion time is prolonged, the pressure on the waterproof case is increased and the pressure time is prolonged, the sealing strip is always limited and pressed in the sealing groove by the pressing convex block, the sealing strip does not shift, the waterproof performance is not influenced by the pressure increase and the pressure time increase, and the sealing effect of the waterproof case is ensured.

The utility model relates to the technical field of hidden seam aluminum plate structures, in particular to a hidden seam aluminum plate structure for a curtain wall, which comprises a wall body, a T-shaped steel frame is fixed on the front side of the wall body through bolts, a plurality of side cross beams are welded on the left side and the right side of the T-shaped steel frame at equal intervals, and a side concave aluminum plate is connected between the upper side cross beam and the lower side cross beam in a sliding mode. A cavity is formed in the back face of the side concave aluminum plate, and joint devices are arranged at the upper end and the lower end of the side concave aluminum plate. The mortise and tenon joint structure is used, the use amount of bolts is reduced, and the side concave aluminum plate can be moved very conveniently in the mounting and dismounting process; the water absorption interlayer made of sodium silicate is filled between the left side concave aluminum plate and the right side concave aluminum plate, and water glass can be generated to fill gaps to prevent water from entering when the water absorption interlayer absorbs the water; and a noise reduction device is arranged, noise is processed through sound absorption cotton and a sound absorption plate, and the comfort degree of the installation environment is improved.

The utility model relates to the technical field of air curtain machines, and discloses an adjustable air curtain machine which comprises a shell, a working mechanism is fixedly arranged in the shell, and an adjusting mechanism is fixedly arranged on the back face of the shell. The working mechanism comprises a working part and a power part; the side surface of the power part is fixedly connected with the side surface of the working part; the power part comprises a double-shaft motor, and the bottom surface of the double-shaft motor is fixedly connected with the inner bottom surface of the shell; the adjusting mechanism comprises an adjusting part and a connecting part. The side face of the connecting part is fixedly connected with the side face of the adjusting part. The connecting part comprises a transverse guide rail, and two connecting blocks are fixedly arranged on the front faces of the left end and the right end of the transverse guide rail correspondingly. Through the arrangement of the adjusting mechanism and the cooperative work of the transverse guide rail and the longitudinal guide rail, after the whole air curtain machine is installed on the surface of the wall body, the transverse guide rail and the longitudinal guide rail can be connected with the air curtain machine for fine adjustment in the left-right and up-down positions, so that multi-angle movement is realized, and adjustment according to actual conditions is facilitated.

The utility model relates to the technical field of fireproof doors, in particular to a high-flame-retardant wooden heat insulation fireproof door which comprises a door frame, two hinges are fixedly connected to the right side face of the door frame, one sides of the two hinges are jointly and fixedly connected with a wooden fireproof door body, and a fixing block is fixedly connected to the right side face of the door frame. The lower end face of the fixing block is rotationally connected with a first rotating rod, one end of the first rotating rod is rotationally connected with a second rotating rod, one end of the second rotating rod is fixedly connected with a third rotating rod, and one end of the third rotating rod penetrates through the upper end face of the containing box and extends into the containing box. Through the arrangement of the hinges and the wooden fireproof door, the wooden fireproof door can be automatically closed under the action of the spring when the wooden fireproof door is pushed open during escape, and the situation that people have no escape channel and cannot rapidly evacuate from the scene due to the fact that the fireproof door cannot be opened due to damage of the motor is prevented.

The invention relates to the technical field of information safety cabinets, and discloses a flow guide type air cooling system and an information safety cabinet, an air return fan assembly comprises a fan cover, a fan cover and a cover cap, the fan cover comprises a lower half body penetrating through the fan cover and an upper half body limited in the fan cover, and the cover cap and the fan cover are matched, sealed and connected in a covering mode to form an air cavity; detachable filter screen baffles are inserted into the inner sides of the four faces of the upper half body in a sliding mode, filter screens are installed in the filter screen baffles, locking blocks for locking and positioning the fan cover are arranged at the four corners of the bottom of the lower half body, and four mounting columns with holes for supporting the centrifugal fan are annularly arranged on the inner bottom wall of the lower half body at equal intervals; and the cover cap is also fixed on the upper half body of the fan cover through a locking knob. According to the invention, rapid installation and maintenance of the fan are realized, and the stability and ventilation efficiency of the system are improved. And the detachable filter screen baffle, the locking knob, the elastic clamping strip and other structures are adopted, so that the installation, replacement and maintenance processes are simpler and more convenient.

The utility model provides a burner protection device, and relates to the technical field of burner protection. The burner protection device comprises a bottom plate, a cooling mechanism is arranged above the bottom plate, the cooling mechanism comprises a first protection box, the bottom face of the first protection box is fixedly connected with the bottom plate, the inner wall of the first protection box is fixedly connected with a fixing plate, and the inner wall of the fixing plate is fixedly connected with a cooling pipe. According to the burner protection device, through cooperative arrangement of the first protection box, the fixing plate, the cooling pipe, the burner body, the protection cover, the burner nozzle, a heat insulation plate, a second protection box, a liquid extraction pump, a circulating pipe and a cooler, the burner protection device can be rapidly cooled through cooling liquid circularly flowing in the cooling pipe, and heat generated by the burner body is effectively absorbed; the burner body is prevented from being in a high-temperature state for a long time, the safety of the burner body and the connecting piece is effectively guaranteed, and the service life of the device is further prolonged.

The invention discloses a router EasyMesh fast networking method and system, and the method comprises the steps: obtaining the equipment information and connection relation of an EasyMesh router through a network topology discovery protocol, and generating a global network topology view. And according to the global network topology view, performing comprehensive scoring on each router by adopting a multi-dimensional index to obtain an equipment capability score of each router. And performing a link quality test on links between the routers in the global network topology view to generate a link quality test result. And taking the global network topology view, the equipment capability score and the link quality test result as input, and calculating an optimal role scheme of each router through a role decision algorithm. Therefore, the router role can be quickly determined through an automatic process, the networking efficiency is optimized, the network compatibility and safety are improved, and management and maintenance are simplified.

The invention provides a piston air seal type gun base and a charging pile. The piston air seal type gun base comprises a gun base body, an air bag, a piston, a connecting rod, a spring, a movable rod and a fixed rod. The piston is arranged in the movable rod, one end of the movable rod is inserted in the fixed rod and abuts against the spring, and the other end of the movable rod is inserted in the gun base body and is connected with the air bag in a sealed mode to form an air channel; the air bag is arranged on the gun base body and used for installing the periphery of the gun head. The piston air seal type gun seat adopts an air bag sealing form, and when the air bag is unfolded, the gun head mounting part of the gun seat body is closed to achieve a sealing state; when the gun head is inserted into the gun base body, the air bag is convolved. The dustproof and waterproof requirements in the charging state and the non-charging state can be met, and potential safety hazards caused by special conditions in the charging state are completely eradicated.

The invention discloses an edge closing structure of an arched roof and a facade curtain wall, and relates to the technical field of constructional engineering, the edge closing structure comprises a roof board block, the roof board block comprises a plurality of aluminum veneers and a roof keel, the plurality of aluminum veneers are mutually lapped to form an integral structure, and the integral structure formed by the plurality of aluminum veneers is fixedly connected to the roof keel. The roof keel is fixedly connected to the building main body; the curtain wall plate comprises curtain wall glass and a curtain wall keel, the curtain wall glass is fixedly installed on the curtain wall keel, and the curtain wall keel is fixedly installed on the building main body; the edge closing plate block comprises an edge closing aluminum plate and an edge closing aluminum keel; according to the scheme, the horizontal long hole and the adjusting bolt are arranged on the first adapter, so that the edge-closing aluminum keel and the edge-closing aluminum plate can be adjusted in the horizontal position, the position of the edge-closing aluminum plate can be conveniently adjusted during installation, the accuracy and convenience of installation are effectively improved, and large installation errors are avoided.

The invention relates to the technical field of computer security, in particular to a computer data security protection system based on Internet of Things, which comprises a monitoring module used for monitoring the working state and data transmission condition of Internet of Things terminal equipment in real time. And the encryption module is used for encrypting data transmission by using an encryption technology. And the authentication module is used for performing identity authentication on the user and the terminal equipment by using a cryptographic technology. And the recording module is used for dynamically adjusting the verification hierarchy according to the use habit of the user. The authorization module is used for jointly undertaking authentication and authorization tasks through multiple nodes; identity authentication and authorization tasks are divided into basic authentication, intermediate authentication and advanced authentication. The login time, the use place and the operation habit of the user are analyzed in real time through the big data and machine learning technology, the system can dynamically adjust the authentication strength according to the risk level, the safety of the system is improved, and therefore measures are taken to protect property and privacy safety.