42results about How to "Reduce connection stress" patented technology

The embodiment of the invention provides an FTP (File Transfer Protocol) file uploading, downloading method and device. The FTP file uploading method comprises the following steps of: responding, by client side accelerating equipment which pretends to be an FTP server, to a first FTP file uploading request of an FTP client side monitored by the client side accelerating equipment; receiving and caching, by the client side accelerating equipment, the FTP file uploaded by the FTP client side; and pretending to be the FTP server, and informing the FTP client side of the reception of the FTP file after the FTP file is received by the client side, and uploading the FTP file to the FTP server by the client side accelerating equipment. Thus, uploading operation of the FTP client side is finished in a local area network environment, and the FTP file uploading speed is increased. Meanwhile, the client side accelerating equipment is indicated to download the FTP file from other client side accelerating equipment for uploading the FTP file to be downloaded in a downloading reorientation mode. Thus, the FTP file being uploaded can also be downloaded in real time, the FTP file downloading speed is increased, and the connection stress of FTP file downloading on the FTP server can be reduced.

The invention discloses a method and a system for shortening time delay in a peer-to-peer network streaming media live broadcast system. The system is provided with a media source node and a cache routing server, wherein the media source node is used for the media resource management of the whole system; the cache routing server is used for media resource management, routing calculation and peer client end management in a local domain; the cache routing server is used for selecting a proper peer client end from other managed peer client ends and establishing streaming media data interaction with a request peer client end; when needed media streaming data does not exist in the peer client end managed by the cache routing server, the cache routing server is used for requesting needed streaming media data information from other cache routing servers and transmitting the needed streaming media data information to the request peer client end; and when the cache routing server is failed forobtaining the needed streaming media data from other cache routing servers, the cache routing server is used for obtaining the needed data from the media source node and transmitting the needed data to the request peer client end.

The present invention provides a semiconductor device in which the warp of a board is suppressed without the need for provision of a solder resist on opposite surfaces of the board and semiconductor element connection characteristics are improved by reducing stress exerted on a connection portion, and increases flexibility in assembly process.

The invention discloses a data communication method. The method comprises the following steps: obtaining a network node list of public nodes; selecting a target node from the network node list, and sending a P2P punching request to the target node through the common node; receiving punching reply information returned by the target node according to the P2P punching request; and establishing a connection with the target node according to the punching reply information, and carrying out data communication. The invention also discloses a data communication device and system, a computer readable storage medium and a computer program product. Technical scheme realized by the invention can be in an intranet and does not support UPNP and NAT-PMP. The nodes mapped by the PMP are connected with other nodes except the nodes with the public network addresses or the nodes successfully mapped by the UPNP, data communication is achieved, the connection pressure of the nodes with the public network addresses or the nodes successfully mapped by the UPNP is greatly reduced, and normal operation of the Ethereum is effectively guaranteed.

The invention relates to the technical field of communication, and discloses a dual-center system switching method and a server. The method comprises steps: after a dual-center switching server receives a switching request instruction, the state flag bit of each application in the dual-center system is set to be in a switching state from a normal state, and thus, each application stops processing data according to the state flag bit; the dual-center switching server determines a to-be-switched second application, connection between a first application connected with the second connection and the second connection is switched to be connection between the first application and a third application, wherein the third application is the backup application for the second application; and after the dual-center switching server determines completion of the switching, the state flag bit of each application is set to be in the normal state from the switching state. Thus, the problems that the system switching process consumes long time and the database has a large connection pressure in the prior art can be solved.

The invention provides a service discovery method and device in a cloud environment, a server, and a storage medium. The method comprises the following steps: listening to a container orchestration tool, obtaining change information corresponding to container nodes of all hosts installed in the cloud environment, determining identifiers of service providers corresponding to the changed container nodes; and sending the change information and the identifiers of the service providers to the registration center, to indicate the registration center to update the node information corresponding to the service providers according to the change information and the identifiers of the service providers. The invention does not need to install an agent in the host where each service provider is located, which greatly reduces the connection pressure of the registration center, is easier to maintain, and reduces the operation and maintenance complexity.

The invention relates to a hyperboloid metal roof and a construction method thereof. The hyperboloid metal roof includes a plurality of arched beams arranged in sequence and contour plate connecting units fixedly connected to every two adjacent arched beams, the contour plate connecting unit includes a plurality of strip-shaped contour plates, and further includes fixing supports for head-to-tailconnection and being connected with the multiple contour plates in the direction of arched beam arrangement, wherein the contour plates are provided with a plurality of bends, and tip sealing plates sealed on the bending positions of the contour plates are fixedly installed on both sides of the contour plates correspondingly; and both sides of the fixing supports are fixedly connected with the multiple tip sealing plates correspondingly. According to the hyperboloid metal roof , the project quality can be ensured, the corresponding connection structure of the hyperboloid can be adjusted according to the requirement of the building curvature, smooth surface connection can be ensured, and the strength requirement reaches the standard; and according to the construction method in the scheme, the tolerance and residual stresses produced by welding can be released from the tops of the arched beams to both sides of the arched beams, and the connection quality and strength of the tip sealing plates are ensured.

The invention discloses an isolation packaging self-compensation resonance pressure sensitive chip probe and a packaging method thereof, and relates to a probe and a packaging method thereof. The invention aims to solve the problems of low Q value, temperature drift and reduction of measurement precision and long-term stability of the existing resonant pressure sensitive chip. Kovar alloy pins are installed on lead holes, silicon resonance pressure sensitive chips are double chips and are installed on a chip bonding surface, a gap is reserved between the silicon resonance pressure sensitive chips and the Kovar alloy pins, and the silicon resonance pressure sensitive chips are connected with the Kovar alloy pins through electrode bonding leads. The corrugated diaphragm is mounted on the corrugated diaphragm contact surface, the compression ring is pressed on the corrugated diaphragm, and the isolation medium is filled in a closed cavity formed among the gap, the probe medium transfer channel, the corrugated diaphragm and the sealing tube seat. According to the packaging method, secondary packaging is carried out on the resonance layer, so that the silicon resonance pressure sensitive chip works in the isolation medium. The method is used for pressure measurement and packaging of the pressure chip probe.

A cloth material of the invention includes a cloth material main body that includes a plurality of conductive wires that generate heat by conduction, and a conductive connecting member that is provided on a side portion of the cloth material main body and electrically connects the plurality of conductive wires together. End portions of the plurality of conductive wires are exposed from the side portion of the cloth material main body so as to be exposed portions. The connecting member electrically connects the plurality of conductive wires together by being welded in a state sandwiching the exposed portions and the side portion of the cloth material main body. Welded portions formed by the welding are arranged alternately with non-welded portions, lined up in a line.

The invention discloses a bendable domestic cleaning software robot and relates to the technical field of robots. The bendable domestic cleaning software robot specially comprises a machine casing, supporting plates and a separation board, wherein one end of a connecting rod is arranged on each of left and right sides of the lower end of the machine casing; a long pole penetrates through the innerpart of each hollow cylinder; cotton cloth is laminated with the outer surfaces of the supporting plates; the surface of the cotton cloth is provided with hole grooves; a cap sleeves the outer side of the upper end of each positioning column; a rotating shaft is connected to the outer surface of each flipping plate; a negative pressure fan is arranged inside the machine casing; a motor is connected to the other end of a driving shaft; a sponge layer is arranged on the outer side of the motor; the outer surface of the machine casing is provided with round holes. According to the bendable domestic cleaning software robot, after the device is used, the cotton cloth and the supporting plate can be bent and folded, so that greater space occupied by the device in an idle state is avoided; besides, the cotton cloth in the device can clean square edges of the ground.

The invention discloses a page display method based on an MVVM architecture, which is established on the basis of an MVVM mode, fuses concepts of the MVVM mode and applies the MVVM mode to 'online service ', so that the quality and efficiency of service software can be improved, and the instantaneity, high efficiency and portability of online service requirements are improved. Low coupling betweenprogram modules is reduced. The responsibility of each controller is clearer, the coupling degree is reduced, the testability and the reusability are improved, meanwhile, the learning cost, the development cost and the reconstruction cost are reduced, and high implementation is achieved.

The invention discloses a vacuum brazing method of dispersion copper. The vacuum brazing method mainly comprises the following steps that S1, the surface of a dispersion copper workpiece and the surface of a Kovar alloy workpiece are cleaned and dried for use; S2, graphene composite particles are adopted as sand blasting raw materials, and surface sand blasting treatment is carried out on the surface of dispersion copper; S3, the dispersion copper workpiece is placed in a rare gas atmosphere, heating is carried out, compressed modified liquid is used for carrying out injection treatment on thesurface of the dispersion copper workpiece, and laser irradiation treatment is carried out on the surface of the dispersion copper workpiece; S4, film electroplating is carried out, wherein film electroplating treatment is carried out on the dispersion copper workpiece, so that the surface of the dispersion copper workpiece is covered with a metal film; and S5, the coated dispersion copper workpiece, the Kovar alloy workpiece obtained after surface purification is carried out and a brazing filler metal are placed in a vacuum brazing furnace for vacuum brazing. According to the vacuum brazingmethod, the surface binding force of a Cu or Ni film and the dispersion copper and the brazing welding effect of the Cu or Ni film and a Kovar alloy can be effectively improved, residual stress between all metal joints is eliminated, and the mechanical performance of the brazing joints is enhanced.

The invention relates to a chair foot structure, which comprises a support element and support feet, wherein the support element comprises a support body and a plurality of installing parts, wherein installing grooves are arranged on the support feet; each installing part is embedded in the installing groove of the corresponding support foot; a support part is arranged under the installing part; aclamping assembly is arranged under the support part; at least one part of the support part passes through the support part and is fixedly connected with the clamping assembly; a fastening assembly is arranged between the support element and the support foot; the fastening assembly sequentially passes through the clamping assembly, the support part and the installing part to be screwed and connected with the support feet. The structure is simple; the mounting and the dismounting are simple and convenient; the transportation cost is reduced; the connection between the support feet and the support element is stable and firm; the fixing and position limiting structures are used in the transverse and longitudinal directions; falling and swinging cannot easily occur; the support feet and the support elements are connected in the axial direction through the fastening assembly, and are also connected with the clamping assembly through an insertion and connecting part; the two-point connection is realized in the radial direction; the connection pressure of the fastening assembly is reduced, so that the connection is more stable and firmer.

The invention relates to a production line system suitable for machine body assembly, which comprises a pit with a track, and a measurement preassembling station, an automatic hole forming station and a manual assembly station are sequentially arranged above the pit in the length direction of the pit. The measuring preassembling station comprises a first numerical control moving platform arranged on the pit in a sliding mode, a shape maintaining frame arranged on the first numerical control moving platform and used for adjusting the posture of the machine body, and a positioner assembly with a six-freedom-degree movement function. The automatic hole making station comprises a second positioner assembly used for being connected with the shape maintaining frame and hole making equipment used for completing hole making of the machine body; the manual assembly station comprises a second numerical control moving platform arranged on the pit in a sliding mode, a third positioner assembly arranged on the second numerical control moving platform and used for being movably connected with the shape maintaining frame, and manual operation platforms arranged on the two sides of the pit in the moving direction of the second numerical control moving platform. And the machine body assembling stress is reduced, assembling of different types of machine bodies is adapted, and production efficiency is improved.

The invention discloses a non-slip band for a bicycle. The non-slip band is a long strip and has rough internal and external surfaces. A rubber belt is fixed to the external surface of the friction-increasing band contacting with the ground. The rubber belt is provided with multiple anti-skidding nails having the prism shape. The anti-skidding nails and the rubber belt are subjected to rubber integrated compression molding. Two nylon tapes are arranged in parallel on the internal surface of the non-slip band contacting with the tyre surface at an interval. Each one of the nylon tapes is provided with multiple nylon granules. The zone between the two nylon tapes contacts with the tyre surface. The distance between the two nylon tapes is equal to the corresponding tyre width. Multiple cloth strips for binding the non-slip band to the tyre are uniformly sewed to the periphery of the non-slip band. In use, the non-slip band is coated on the bicycle tyre and the cloth strips are tied to the bicycle tyre, and after use, the cloth strips are untied and the non-slip band is taken down. The non-slip band saves the energy, is environmentally friendly, and can be used as a disposable product and for marketing and use.

The invention relates to the technical field of arc welding robots, and discloses an arc welding robot capable of preventing a spatter phenomenon. The arc welding robot comprises a base, a top plate,a welding strip, a fixed sleeve block, a nitrogen tank, a control cabinet and a power distribution cabinet; a supporting rod is fixedly installed at the top of the base, a wire feeder is fixedly installed at the top of the supporting rod, a crossbar is fixedly installed on the right side of the top of the supporting rod, a connecting rod is movably installed at the right end of the front side of the crossbar through a control shaft, and the top plate is welded to the bottom of the connecting rod. According to the arc welding robot, sufficient alloy elements, namely deoxidizing agents, with higher affinity to oxygen than Fe are added into a material storage bin through a feeding pipe, thus in the welding process, the elements are utilized to reduce the Fe in FeO, that is, the FeO is deoxidized, the problem that CO gas produced by the reaction of the FeO in molten drops and C expands rapidly under the high temperature of an electric arc, thus the spatter is caused by the explosion of themolten drops is solved, and the quality of overall welding is ensured.

The invention discloses an aluminum and aluminum alloy and copper diffusion brazing process, and belongs to the field of dissimilar material connection. The process adopts Al-Si-Cu ternary alloy powder (the content of Si is 5%-7%, the content of Cu is 28%-30%, and the balance is Al, all in mass percent) as the connection materials, and under certain vacuum degree and certain pressure, heat is preserved at the temperature of 525-555 DEG C for 10-60 minutes, so connection between aluminum and aluminum alloy and copper can be realized. By adopting the method, liquid phase is formed by diffusion of Cu and Si atoms on an aluminum/oxidation film interface, and the oxidation film on the aluminum surface is removed, so as to realize metallurgical bonding, the joint is compact, the reliability is high, and the aluminum and aluminum alloy and copper diffusion brazing process is applicable to large area joint between pure aluminum and alloy thereof and copper and to welding of complex structural parts.