642results about How to "Realize function" patented technology

The embodiment of the invention discloses a database integrity verification method, device and system, a medium and equipment, and the method comprises the steps: firstly, injecting a section enhancement code at a preset tangency point position of a database; then, when a modification operation for the database is received, executing the section enhancement code to generate a verification hash value corresponding to the modification operation; and further, calling a password service of a trusted third party, and performing data signature on the target data corresponding to the modification operation by the verification hash value through the password service. And finally, verifying the database data based on a hash operation message authentication code obtained by verifying the hash value and the data signature so as to determine whether the database is tampered or not.

According to the key password padlock capable of changing the password, the lock beam is pushed out of the shell through vertical pushing of the movable plate, unlocking and locking are conducted in this way, the limiting protrusion on the pressing column can play a role in stopping the movable plate from moving, and if no password is input (the pressing column is not pressed), unlocking is not conducted. The limiting protrusions correspond to the limiting protrusions on the movable plate, so that the movable plate is prevented from moving, after a password is input, the limiting protrusions and the limiting protrusions on the movable plate are staggered, and at the moment, the movable plate can move up and down to conduct unlocking operation. The whole structure is simple, and the function of the lock body is achieved mainly through cooperation of the movable plate and the pressing column.

The invention discloses a continuous nickel smelting method and equipment, the equipment comprises a smelting furnace, an electric furnace and a converting furnace, the smelting furnace is provided with a feeding port and a reducing agent and vulcanizing agent feeding port, and one side of the electric furnace is directly communicated with the bottom of one side of the smelting furnace; one side of the converting furnace is directly communicated with the bottom of the other side of the smelting furnace, the heights of the furnace bottoms of the electric furnace, the smelting furnace and the converting furnace are sequentially reduced, the lower part of the smelting furnace is provided with a molten pool reaction area with a copper water jacket for cooling, the molten pool reaction area is provided with a group of primary tuyeres, and the group of primary tuyeres is provided with a group of secondary tuyeres. The upper part of the smelting furnace is provided with a group of secondary tuyeres; and the converting furnace is provided with a spray gun. According to the invention, the laterite-nickel ore smelting, settling separation and blowing functions are simultaneously realized by one furnace partition, a blowing furnace and a settling electric furnace do not need to be independently configured, and the maximum utilization of the sensible heat of the slag is realized.

The invention relates to the field of semiconductor packaging, and provides a semiconductor packaging structure and a forming method thereof, and the method comprises the steps: providing a glass substrate which is provided with a plurality of discrete glass through hole interconnection structures; an inorganic dielectric layer and a first interconnection structure located in the inorganic dielectric layer are formed on the upper surface of a glass substrate through the BEOL technology in the front-end manufacturing process of a semiconductor, and the density of the formed first interconnection structure is larger than that of a second interconnection structure formed on the lower surface of the glass substrate subsequently. The feature size of the first interconnection structure is smaller than that of a subsequently formed second interconnection structure; forming an organic passivation layer and a second interconnection structure located in the organic passivation layer on the lower surface of the glass substrate by adopting an RDL process in a semiconductor back-end process; and mounting at least one first semiconductor chip on the upper surface of the inorganic dielectric layer. The method improves the wiring density of the first interconnection structure on the upper surface of the glass substrate.

The invention discloses an electric service operation terminal for controlling traveling equipment under a V-shaped skylight and a related system, and is applied to the technical field of railway traveling scheduling. In the scheme, through the newly added electric service operation terminal, the operation and control and experiment functions of electric service personnel under the V-shaped skylight on the traveling equipment can be realized, and meanwhile, station yard state snapshot and comparison functions are configured, so that the control of the traveling equipment under the V-shaped skylight is realized. The hidden danger that experimental equipment in a construction area is not reset after an electric service experiment is finished is avoided; and a regional control permission interaction mechanism is provided to realize dynamic permission division, so that each operator only works within the respective permission range, and the operation safety can be ensured. On the whole, the operation execution efficiency of the V-shaped skylight is improved, and the influence of an electric service skylight experiment on the operation of vehicle service personnel is reduced.

The invention relates to the technical field of plastic recovery, in particular to waste plastic recovery equipment. The waste plastic recycling equipment comprises a crusher, a discharging hopper is fixedly connected to the top of the crusher, a rotating piece is rotationally connected to the discharging hopper, a supporting rod is fixedly connected to the side, close to the rotating piece, of the discharging hopper, a servo motor is installed on the supporting rod, and an output shaft of the servo motor is connected with the rotating piece through a coupler. And extrusion pieces which are symmetrically distributed are fixedly connected to the side, close to the rotating piece, of the crusher. Through mutual cooperation of the rotating piece, the extruding piece, the sliding block, the connecting pull rope, the clamp and the like, stable clamping and accurate positioning of a woven bag are achieved, it is guaranteed that the woven bag cannot slide or deviate in the overturning and dumping process, waste plastic in the bag is ejected out from the bottom of the bag through the ejector plate, the waste plastic in the bag is effectively pushed to a bag opening, and therefore the waste plastic in the bag is effectively pushed out. And the discharging speed is increased, the working efficiency is improved, and the performance of waste plastic recycling equipment is improved.

The invention provides an intelligent dynamic reactive power compensation system and a control method thereof, and relates to the technical field of circuit reactive power compensation systems, and the system comprises a control system which is internally provided with a console and a main control chip, and is used for controlling the starting and stopping of the whole reactive power compensation system; the distribution device is in signal connection with the control system, and the distribution device is connected with an external cable; and the compensation system is connected with an external cable through the distribution device. According to the system and the method, through real-time data acquisition and an advanced control algorithm, the system can quickly respond to the change of a power grid, dynamically adjust SVG, SVC and a synchronous phase modifier, realize high-precision reactive compensation, improve the stability and the power supply quality of a power system, and predict the reactive power demand by utilizing model reasoning and real-time monitoring, so that the power supply quality of the power system is improved. And an optimal compensation scheme is generated, and a strategy is dynamically adjusted, so that over-compensation or under-compensation is avoided, and the system is ensured to be always in an optimal state.

The invention discloses an ultrafast heat switching device and a design method thereof. The ultrafast heat switch device comprises a first polariton layer, a fixed near-field gap and a second polariton layer which are sequentially arranged from top to bottom. According to the design method, an external ultrafast light pulse is utilized to excite a first polariton layer, and mid-infrared transient polaritons are generated. Time-varying coupling occurs between the transient polaritons and polaritons of the second polariton layer, opening or closing of a near-field thermal radiation channel is dynamically controlled, and a thermal switch function is realized. Based on the synergistic effect of heterostructure terminal pairing and transient polaritons, the picosecond-level response speed and the switch ratio exceeding four orders of magnitude are achieved. Under the optimal design, the device can achieve the laser cooling effect on the emitting electrode in a single switching period, and an innovative solution is provided for nanoscale dynamic thermal management.

The invention discloses a turning device for differential shaft machining, and relates to the technical field of turning devices.The turning device comprises a rack and a sliding seat installed at the top of the rack, a cutter is installed at the top of the sliding seat, a three-jaw chuck is installed on the inner side of the rack, and a columnar workpiece is clamped on the inner side of the three-jaw chuck; and the alternate feeding mechanism is located on one side of the rack and used for alternately feeding the columnar workpieces, the alternate feeding mechanism comprises a support fixedly connected to one side of the rack, one end of the support is fixedly connected with a first connecting base, and the top and the bottom of the first connecting base are both fixedly connected with second connecting bases. By arranging the alternate feeding mechanism, the function of alternately feeding and discharging the two columnar workpieces is achieved, manual operation of workers is not needed, the time for manually replacing discharging and feeding by the workers is shortened, and then the cutting efficiency of the columnar workpieces is improved.

The invention relates to the technical field of box girder bottom web plate manufacturing, in particular to a stirrup clamping longitudinal bar arranging mechanism which comprises a gantry support, an arranging part, a longitudinal bar clamping part and a longitudinal bar clamping part. Comprising an outer side longitudinal bar arranging mechanism, a stirrup fixing mechanism and an inner side longitudinal bar arranging mechanism which are sequentially installed from the two ends of a gantry cross beam to the middle. The stirrup clamping and longitudinal bar arranging mechanism is stable in structure, can achieve smooth coherence and stability in the working process, is beneficial to improving the machining quality and efficiency of a box girder reinforcement cage, achieves the stirrup clamping and longitudinal bar arranging functions, and is beneficial to reducing structural deformation and guaranteeing the box girder production quality; the air cylinder is arranged outside, debugging is convenient, practicability and convenience are improved, and the safety coefficient can be improved.

The invention discloses a method for protecting a transistor, a protection circuit and a control circuit. The protection circuit comprises a first protection circuit; one end of the first protection circuit is connected with the driving signal output end of the driving circuit, and the other end is connected with the driving end of the to-be-driven transistor; the first protection circuit is used for sharing the charging voltage of the driving end capacitor of the transistor to be driven when the driving voltage provided by the driving circuit enables the first voltage of the first protection circuit not to reach the first working voltage; when the driving voltage provided by the driving circuit enables the first voltage to reach the first working voltage, entering a first conduction state, and controlling the conduction or turn-off of the to-be-driven transistor according to the driving voltage in the first conduction state; and under the condition that the transistor to be driven is conducted, when the driving voltage provided by the driving circuit enables the second voltage of the first protection circuit to reach the second working voltage, the first protection circuit enters a first turn-off state, and the transistor to be driven is controlled to be turned off or conducted after entering the first turn-off state.

The utility model discloses a residue and pulp separation type pulping machine cleaning device which comprises a rack, an upper cover, a grinding barrel and a power part are installed on the rack, a grinding assembly composed of a static grinding disc and a movable grinding disc is arranged in the grinding barrel, the static grinding disc is connected with the upper cover, the grinding barrel and the rack are arranged in a separated mode, and the power part is connected with the power part. And an auxiliary cleaning component connected with the upper cover and the grinding barrel is arranged on the rack. According to the residue and pulp separation type pulping machine cleaning device, auxiliary cleaning components are arranged on the upper cover and the grinding barrel, lifting and separation of the upper cover and the grinding barrel are achieved through the lifting motor, rotation of the rotating sleeve relative to the sliding sleeve is achieved through the thrust bearing, and rotation of the rotating sleeve arm relative to the rotating sleeve is achieved through the needle bearing; therefore, the function of adjusting the positions and directions of the upper cover and the grinding barrel is achieved, the interiors of the upper cover and the grinding barrel are fully cleaned conveniently, and the effect of improving the cleaning efficiency and the cleaning degree is achieved.

The invention discloses a process resource dynamic automatic allocation method based on a database and a user-defined rule. The method comprises the following steps: 1) process route verification: obtaining and verifying a process route; 2) material automatic distribution: obtaining material information and distributing the material information to a process / step, and verifying the material quantity and the material combination relationship; (3) automatic distribution of equipment tools and tools: selecting the equipment tools and tools on the basis of the materials distributed according to the working procedures / working steps to realize automatic distribution of the equipment tools and tools; 4) custom component verification: realizing material process attribute parameter, equipment tool capability parameter and process attribute comparison logic verification, and customizing rule component operation logic; and 5) automatically adding matters needing attention: realizing the functions of automatically acquiring and updating the matters needing attention of materials and equipment tools and tools. The method has the advantages of high distribution efficiency, high distribution precision and the like.

The invention discloses a movable column type multi-axis linkage vertical machining center machine tool, and relates to the technical field of vertical machining center machines, the movable column type multi-axis linkage vertical machining center machine tool comprises a numerical control system, a base and a stand column, the numerical control system and the stand column are arranged above the base, a spindle box is arranged on the side face of the stand column, and the movable column type multi-axis linkage vertical machining center machine tool further comprises a tool magazine assembly and a multi-axis linkage assembly; the tool magazine assembly and the multi-axis linkage assembly are electrically connected with the numerical control system, the tool magazine assembly is arranged above the base, and the multi-axis linkage assembly is arranged among the base, the stand column and the spindle box. According to the machine tool, the multi-axis linkage assembly is arranged, the requirement for inner spiral machining of shaft sleeve type parts is met while three-dimensional multi-angle machining is achieved, through cooperation of the tool magazine assembly, the multi-axis linkage assembly and the numerical control system, tool bits are intelligently replaced, the machining precision is precisely controlled, the production efficiency of products is improved, and the production cost is reduced. And the precision of manufactured products is also improved.

The invention provides a user motion data processing method and a related device, and the method comprises the steps: obtaining a controlled state of a target snowboard; when it is detected that the controlled state is an abnormal state, a sliding track of the current sliding event of the target snowboard and current first motion data are obtained; determining an uncontrolled sliding track of the target snowboard according to the sliding track and the first motion data; acquiring second motion data of one or more skiing users in the current snowfield, wherein the distance between the skiing users and the uncontrolled sliding track is smaller than a preset distance; determining a target skiing user with a collision risk according to the first motion data and the second motion data; and sending avoidance prompting information to the target skiing user. According to the invention, the server monitors the position through the positioning device, achieves the recognition function for the out-of-control snowboard and a skiing user who may be impacted by the out-of-control snowboard, reduces the possibility of being impacted and injured on a snowfield, and improves the accuracy and success rate of the server in processing potential collision events.

The invention relates to a screen projection method, device and system, computer equipment and a storage medium. The method comprises the following steps: a playing end receives a delivery end signaling from a delivery end; the delivery end signaling is a WebRTC signaling transmitted by the delivery end through a UPnP protocol, the playing end generates a playing end signaling based on the delivery end signaling and sends the playing end signaling to the delivery end through the UPnP protocol, so that the delivery end and the playing end establish a WebRTC communication connection, and the playing end sends the playing end signaling to the delivery end based on the WebRTC communication connection. And receiving and displaying the real-time audio stream or mirror image data from the delivery end. By adopting the method, the UPnP protocol can be used as a signaling exchange channel of the WebRTC, the support and expansion of the WebRTC projection screen on the basis of the current mainstream DLNA projection screen function are realized, the hardware cost is not increased, the popularization degree is not reduced, and the mirror image projection screen and real-time audio and video stream projection screen functions are realized.

The utility model discloses a kind of steel wire rope automatic rope winding machines, by setting torsion releasing device, release the torsion generated in the process of winding rope of steel wire rope, prevent the disorder of rope reel caused by torsion of steel wire rope, tension adjusting device, the tension of steel wire rope in the process of winding operation can be adjusted in real time, so that winding is more regular, by increasing the friction of steel wire rope to slow down its speed, reach the purpose of adjusting tension;And rope reel butt joint device realizes automatic lifting transfer of the winding reel and the storage of steel wire rope by lifting mechanism and transmission mechanism, the degree of automation of the in-place, butt joint and rotating action of steel wire rope reel is high, winding is more efficient;While the rope guiding roller, line pressing mechanism and line arranging mechanism arranged between rope reel butt joint device and tension adjusting device, so that the line arranging and winding action cooperation is more smooth, and line arranging mechanism uses positive and negative screw rod to carry out automatic reversing, can realize the orderly storage of steel wire rope, improve the operation efficiency of steel wire rope storage.

The utility model discloses an SMT chip mounter in the technical field of chip mounters, which comprises a workbench, a first sliding rail is arranged at the top of the workbench, the first sliding rail is fixedly connected with the workbench, two movable clamping plates are arranged on the surface of the first sliding rail, the movable clamping plates are slidably connected with the first sliding rail, first limiting blocks are arranged at the two ends of the first sliding rail, and the first limiting blocks are fixedly connected with the workbench. The first limiting block is fixedly connected with the workbench, a fixed limiting plate is arranged at the top of the workbench, a first connecting block is arranged on one side of the fixed limiting plate, threaded rods are arranged on the two sides of the first connecting block, and a rotary knob is arranged at one end of each threaded rod; according to the SMT chip mounter, by arranging the first sliding rail, the movable clamping plate, the first limiting block, the fixed limiting plate, the first connecting block, a rotary knob, a threaded rod, a guide rod, a second sliding rail, a movable limiting plate and a first electric telescopic rod, the function that the SMT chip mounter limits and fixes a circuit board in the chip mounting process is achieved, and the accuracy of the SMT chip mounter in the chip mounting process is improved.

The utility model discloses a water purification system relates to water treatment technical field, the water purification system includes: first water storage unit, first water storage unit has the containing cavity of water storage, water purification subassembly, water purification subassembly's water purification export can communicate with containing cavity to generate the water purification input to containing cavity, refrigeration subassembly, refrigeration subassembly is used to the cooling of water purification in containing cavity, to low temperature water purification with water purification generates, extraction subassembly, extraction subassembly is used to the extraction of beverage capsule, extraction subassembly is communicated with containing cavity through first waterway, is provided with drive pump and the heating component of the water purification of heating that can flow on first waterway. The present application can solve the problem that the water purification machine with high pressure hot extraction and high pressure cold extraction function output waterway is more at present.

The utility model discloses a safe and stable detection device for a water conservancy project, which relates to the technical field of water conservancy projects and comprises a U-shaped frame and a knocking block, the knocking block is arranged below the U-shaped frame, a hydraulic cylinder is fixedly arranged on the lower surface of the middle end of the U-shaped frame, and an electromagnet is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder. And through holes are formed in the side walls of the two ends of the lower side of the U-shaped frame, sliding rods are arranged in the through holes in a sliding mode, arc-shaped baffles are fixedly arranged at one ends of the inner sides of the sliding rods, vertical rods are fixedly arranged on the portions, located on the two sides of the hydraulic cylinder, of the lower surface of the U-shaped frame, and transverse rods are movably connected to the rod walls of the vertical rods in a sleeving mode. According to the foundation strength detection device, when a foundation is knocked, shielding can be automatically carried out, safe and stable foundation strength detection can be carried out, after detection is finished, the shielding can be automatically opened, and the detection condition can be conveniently observed.

The application relates to the technical field of welding materials, and particularly discloses a high-temperature-resistant flux-cored wire containing rare earth elements and a preparation method thereof. The high-temperature-resistant flux-cored wire containing rare earth elements comprises a wire sheath and a core; the core comprises the following raw materials: dehydrated rutile, dehydrated potassium feldspar, zircon sand, metal chromium powder, metal nickel powder, electrolytic manganese, ferrotitanium, aluminiferous iron, potassium cryolite, potassium titanate, sodium titanate, iron powder, yttrium-based iron alloy powder, atomized ferrosilicon, chromium-iron nitride, bismuth oxide, an additive, and the balance of reduced iron powder; the additive is a mixture of zirconium-iron alloy, ferrotitanium alloy and aluminum-magnesium alloy. The application introduces a specific alloy additive into the core to protect the transition of the rare earth yttrium, optimizes the welding performance of the yttrium and multiple components in cooperation, matches the 253MA heat-resistant steel, adjusts the components of the molten slag and the electric arc, and reasonably processes the technology, so that the welding quality of the wire is improved.

The invention provides an anti-device-free combination system and a display control method, the anti-device-free combination system comprises a display control device and N layers of anti-device-free devices, and the display control device is connected with the first layer of anti-device-free device in the N layers of anti-device-free devices; the (i + 1) th layer of reverse null equipment in the N layers of reverse null equipment is connected with one of the ith layer of reverse null equipment in the N layers of reverse null equipment; the anti-null device of the (i + 1) th layer comprises a first anti-null device, and the anti-null device of the ith layer comprises a second anti-null device; the first anti-null device is used for reporting device operation related data of the first anti-null device to the second anti-null device; the second anti-null device is used for determining sub-device list data of the second anti-null device according to the device operation related data reported by the first anti-null device, and sending the sub-device list data to a superior device of the second anti-null device; and the display control equipment is used for generating and displaying an anti-no-equipment topological graph corresponding to the N layers of anti-no-equipment according to the sub-equipment list data sent by the first layer of anti-no-equipment.

The utility model relates to spot welding fixture technology field especially relates to a robot automatic spot welding fixture of turntable bottom plate subassembly, including mechanism body, be provided with lifting adjustment subassembly, positioning and pressing subassembly, lifting positioning subassembly, slide table positioning subassembly, head positioning subassembly, side edge mobile slide platform subassembly and vertical plate positioning subassembly on mechanism body. The utility model novel structure, can change type fast, can be compatible with different types of product model, realize flexible production, automatic welding, solved the problem of traditional through artificial clamping labor intensity, promoted the quality and production efficiency of product, saved work time, can accurate control workpiece's up and down, horizontal, vertical and angle positioning, adapt to different size and shape turntable seat circle and workpiece, improved welding accuracy, applicable to a variety of workpiece types and size, realized the multifunctionality and adaptability of equipment, can fasterly complete welding task, shorten production cycle, promote overall production efficiency.

The utility model discloses a medical instrument which comprises a forceps head assembly, a supporting tube assembly, a power plug and a handle assembly. One end of the forceps head assembly is connected with the far end of the supporting tube assembly, and the near end of the supporting tube assembly is connected with the handle assembly. The handle assembly comprises a first movable handle, a second movable handle and a fixed handle, the first movable handle and the second movable handle are in sliding connection with the fixed handle, and the first movable handle and the second movable handle can slide left and right relative to the fixed handle; the first movable handle is provided with a cavity, and one end of the power plug is arranged in the cavity; the supporting pipe assembly is formed by sleeving a driving rope, a smooth layer, a supporting pipe and an insulating pipe from inside to outside, and the smooth layer is arranged outside the driving rope; the driving rope is used for controlling opening and closing actions of the tong head assembly, and a plurality of threads with unequal screw pitches are arranged on the outer wall of the supporting pipe; the power plug is electrically connected with the tong head assembly through the driving rope. The medical instrument has the functions of biopsy forceps and an electrocoagulator at the same time.