67results about How to "Reduce the probability of drift" patented technology

The invention relates to a twice-sorting self-adaption arrangement algorithm for two-dimensional rotating phased array radar beam dwelling, in particular to a method for implementing rotating phased array radar beam self-adaption arrangement based on twice sorting. The method is mainly suitable for beam dwelling task arrangement of rotating phased array radar. Each dwelling task has the following attributes including the priority, the dwelling time, the expected execution moment, the time window, the actual execution moment, the direction and the elevation angle. The first-time sorting of the twice sorting method is achieved through the steps of sorting the dwelling tasks according to the priority, and taking out the tasks, capable of being executed in this interval, according to the dwelling time of the tasks when limited by the scheduling interval which is generally 50 milliseconds or 100 milliseconds. The second-time sorting of the twice sorting method is achieved through the step of sorting the tasks which are taken out according to the sequence of the expected execution moments. The actual execution moment of the first task is set to be the starting moment of this interval, the execution moment of the second task is set to be the ending moment of the first task, and setting is sequentially conducted in this way.

The invention discloses a backlight module and a flat-panel display. The backlight module comprises a rubber frame, a lamp shade, a lamp source, a light guide plate and a plurality of optical films, wherein the lamp shade comprises a baffle plate and a convex component, the rubber frame is provided with a groove, and the inside of the groove is provided with a clamp component, therefore, when the rubber frame and the lamp shade are assembled, the convex component and the clamp component are mutually buckled. The backlight module disclosed by the embodiment of the invention has the advantages that the lamp shade comprises the baffle plate and the convex component, and the rubber frame is provided with the groove and a convex-component buckling part corresponding to the baffle plate, so that when the rubber frame and the lamp shade are assembled, the baffle plate and the groove are mutually buckled, thereby reducing the horizontal and vertical deviation ratios of the rubber frame. Compared with the current general assembling mode of the rubber frame and the lamp shade, the required reworking rate of the backlight module caused by different appearances and sizes of the backlight module after the rubber frame is assembled can be reduced.

The invention discloses a virtual content display method and device, a VR device and a medium, which are applied in the technical field of VR to solve the problem of scene drift in the prior art. Specifically, the method comprises the steps of obtaining the distance between the screen of the VR device and the lens; determining a visible area of the lens on the screen according to the distance, anddetermining a screen display area according to the visible area; acquiring a position of the human eye relative to the lens; determining a user field angle of view corresponding to the position, andadjusting the field angle of view of the virtual content according to the user field angle of view; displaying the virtual content after adjusting the field of view angle on the screen display area. Thus, the adaptive adjustment of the view angle of the screen display area and the virtual content is realized, so that the view angle of the screen display area is consistent with the visible area andthe view angle of the virtual content is consistent with the view angle of the user, thereby effectively reducing the probability of the scene drift occurrence and improving the visual effect of theVR device as much as possible.

A packaging method includes providing a substrate, wherein a surface to be bonded of the substrate is a first surface to be bonded; providing a plurality of chips, wherein surfaces to be bonded of thechips are second surfaces to be bonded; providing a thin film type packaging materials; forming a bonding layer on at least one of the first surface to be bonded and the second surfaces to be bonded;after forming the bonding layers on at least one of the first surface to be bonded and the second surfaces to be bonded, arranging the first surface to be bonded and the second surfaces to be bondedoppositely and placing the chips on the substrate; after the chip is placed on the substrate, adopting a thermocompression bonding process to realize bonding of the substrate and the plurality of chips through the bonding layer, and filling a packaging material between the chips and the substrate and covering the chip, and using the packaging material after the thermocompression bonding process asa packaging layer. Through the thin film type packaging material, the probability of chip drift in the thermocompression bonding process is reduced, and the yield and reliability of the packaging structure are improved. Moreover, the bonding between the substrate and the chips is realized synchronously by the thermocompression bonding process, and the packaging efficiency is improved.

The invention discloses an electric spark cutting machine for stainless steel tube machining. The machine comprises a bottom plate, a cutting mechanism and a box body, wherein a work table is fixedlyconnected to the top of the box body, a first sliding plate is fixedly connected to the top of the working table, a clamping plate is connected to the top of the first sliding plate in a sliding mode,the top of the clamping plate is fixedly connected with a fixing plate, the top of the fixing plate is movably connected with a fixing block, the top of the fixing block is movably connected with a placing plate, and a movable groove is formed in the bottom of the interior of the placing plate. The machine relates to the technical field of stainless steel tube machining. The electric spark cutting machine for the stainless steel tube machining is characterized in that the fixing plate is fixedly connected to the top of the clamping plate, so that a steel tube can be fixed during cutting, thesteel tube can be cut according to a set cutting line during the cutting, probability of deviation of the steel tube is reduced; the sliding groove is formed in the fixing plate, so that damping of the work table can be realized, vibration generated during the cutting can be reduced, and generated noise can be reduced.

The invention relates to the technical field of elevators, and discloses a multi-station automatic assembling device for an elevator switch box. The multi-station automatic assembling device for the elevator switch box comprises a workbench, wherein moving wheels are arranged at the bottom of the workbench, an outer box is fixedly arranged at the bottom of the workbench, a disc is arranged in theouter box, a through groove is formed in the surface of the disc, a rotating rod is arranged on the inner top wall of the outer box, a stop rod is fixedly connected to the top of the rotating rod, a first motor is fixedly installed at the top of the workbench, and a bearing is arranged in the workbench. According to the multi-station automatic assembling device for the elevator switch box, when aswitch is clamped into a clamp plate, the clamp plate can be pushed to move backwards so as to extrude a return spring, the switch is clamped by the acting force of the spring, the switch is conveniently fixed, the probability of deviation when the switch is assembled is reduced, the precision when the switch is assembled is improved, the switch damage rate is reduced, the production cost is reduced, and the product quality is improved.

The invention discloses a thin-wall shell forming die device with a rigid insertion type solid core male die. The thin-wall shell forming die device comprises a female die which is divided into at least two oppositely-arranged parts, and the male die is arranged in the female die; a cavity for forming a shell is formed between the outer wall of the male die and the inner wall of the female die; the male mold is of a solid-core silica gel structure; a core shaft hole which is used for being inserted into by a core shaft and is matched with the core shaft in shape is formed in the male mold; anda core shaft hole port is located at the tail end of the male mold. The thin-wall shell forming die device with the rigid insertion type solid core male die can eliminate glue accumulation, ensure uniform wall thickness of the formed shell, and is more convenient and fast to operate.

The invention relates to a high-resolution in-situ fluid turbulence heating chip of a transmission electron microscope, which is structurally characterized in that an upper sheet and a lower sheet arecombined through a metal bonding layer and are self-sealed to form an ultrathin chamber; the upper piece is provided with two sample injection ports and an upper central window; the lower sheet is provided with a fluid inlet, a fluid outlet, a fluid flow channel, a lower central window, a micro-turbulence column array, a heating layer and an insulating layer; the heating layer is provided with four contact electrodes and a spiral annular heating wire; the lower central window serves as the center and is located in the central area of the spiral annular heating wire; the fluid inlet and the fluid outlet are symmetrically arranged relative to the central window, and the lower central window is located in the center of the heating layer; a micro-turbulence column array is arranged on the lower central window; the chip has the advantages of being rapid in heating and cooling, high in resolution ratio, accurate in temperature control, controllable in fluid flow direction and low in sampledrift rate.

The invention relates to a perforating machine for plastic. The perforating machine comprises a perforating rod, a sliding groove and two clamping plates. The perforating rod is connected into the sliding groove in a sliding mode, a first connecting rod is hinged to the left end of the perforating rod, and a first crank is hinged to the first connecting rod. A first slide rail is arranged at the right side of the perforating rod, the two clamping plates are sequentially connected to the first slide rail in a sliding mode from left to right, a fixing block is arranged at the right end of the first slide rail, and springs are connected between the clamping plate located on the side away from the sliding groove and the fixing block. The two clamping plates abut against each other, and an opening for the perforating rod to pass through is formed in the clamping plate located on the side close to the sliding groove. A second slide rail is arranged above the two clamping plates and connected with a pressing block in a sliding mode, a second connecting rod is hinged to the pressing block, and a second crank is hinged to the second connecting rod. Compared with the prior art, the pressing block and the two clamping plates are matched to enable a wood board to be fixed more stably, and therefore the stability of the wood board is enhanced, and the probability that the pointed end of the perforating rod makes scratches on the surface of the wood board is lowered.

The invention discloses a gadder with a safety supporting unit, used in raise borers. The gadder comprises the safety supporting unit; the safety supporting unit comprises a drill stand and hydraulic legs; the hydraulic legs comprise upper hydraulic legs and lower hydraulic legs; the upper hydraulic legs used for supporting a tunnel roof are vertically disposed above the drill stand and are horizontally aligned; the lower hydraulic legs used for supporting the drill stand are disposed below the drill stand and are perpendicular to the ground or of a certain angle relative to the ground. The gadder has the advantages that the hydraulic legs are provided, the problems that the existing upper and lower supports are difficult to adjust and prone to loosening, so that offset of drill pipes and the like occur are solved, a lot of manpower and resources are saved, work efficiency is greatly improved, two setting modes of the lower hydraulic legs, namely vertical and tilted modes, are provided to allow flexible adjustment of the drill pipes when the offset occurs, and the drill stand can be more stable and easy to operate during construction.

The invention relates to an anti-delinting chenille yarn and a production process thereof, and relates to the technical field of chenille weaving. The problem of easiness in delinting of existing chenille yarns is solved. According to the scheme, the chenille yarn comprises two core yarns, hot melt adhesive yarns which are arranged in a hollow mode and fixedly sleeve the peripheries of the core yarns, and wrapping yarns which spirally wrap the outsides the core yarns, and fluff yarns penetrate and are clamped in a among between the core yarns. According to the scheme, the hot melt adhesive yarns are added into the whole chenille yarn, so that the molten glue can bond the core yarns and the fluff yarns in the later spinning process, and the delinting probability is reduced; and moreover, inthe processing technology of the chenille yarn, components such as a ring twisting hook and a steel collar are omitted, the problem of serious power consumption caused by friction between the ring twisting hook and the steel collar can be avoided, and limitation of the steel collar on the winding outer diameter of a finished product is not needed, so that more chenille yarns can be wound at a time, and the processing efficiency is improved. Finally, by the scheme, the chenille yarns with good lint resistance can be produced.

The invention relates to a transmission electron microscope high-resolution in-situ suspension type temperature difference pressurization chip and a preparation method thereof. The chip comprises a substrate of which two sides are covered with insulating layers, a central window is arranged in the middle part of the substrate, the central window is suspended, the central window is also covered with a support layer, two heating wires which are symmetrically arranged left and right and two pressurizing circuits which are symmetrically arranged up and down are arranged on the supporting layer inthe central window, the two pressurizing circuits are positioned in a gap between the two heating wires, the heating wires are connected with four heating electrodes, the heating electrodes are connected to different positions of the heating wires through heating lines, the pressurizing circuits are connected with pressurization electrodes, the pressurization electrodes are connected with the corresponding pressurizing circuits through pressurizing lines. The chip can achieve the temperature difference function and the pressurization function at the same time.

The invention discloses a timber saw blade cutting machine comprising a pedestal and an operation table arranged on the pedestal; the operation table is provided with a saw blade fixed on a bearing rack; a bearing rack bottom piece is placed in a pedestal slide slot and moves in the slide slot; the slide slot and the saw blade are in a same direction. One side of the operation table is vertically provided with a fixed stop plate having same direction with the saw blade. The bearing rack bottom piece can slide in the pedestal slide slot so as to drive the saw blade to move in a horizontal direction, thus adjusting horizontal distances between timbers, two pressure rollers and the saw blade, so the two pressure rollers can be in best force application positions above the timber; the timber saw blade cutting machine is best in effect, most convenient in operation, thus reducing timber offset probability, and reducing timber resource waste.

The invention discloses a monitoring and early warning device for a high consequence area of an oil and gas pipeline. The device comprises an inverted-U-shaped or inverted-V-shaped main frame buckledon the outer wall of the upper half portion of the oil and gas pipeline; a moving mechanism, a stabilizing mechanism, a stabilizing auxiliary mechanism and a monitoring mechanism are arranged on the main frame, the moving mechanism comprises a driving unit and a moving part, and the driving unit drives the moving part to move on the outer wall of the oil-gas pipeline through a transmission mechanism; the stabilizing mechanism comprises at least two counterbalance weights, and two arms of the main frame are each provided with one counterbalance weight so that the gravity center of the main frame can fall on the center line; the stabilizing auxiliary mechanism comprises a friction attaching piece, and the friction attaching piece is used for providing circumferential friction with the outerwall; and the monitoring mechanism is used for monitoring the oil-gas pipeline. According to the monitoring and early warning device for the high-consequence area of the oil and gas pipeline, the mainframe can be stably arranged on the oil and gas pipeline, meanwhile, the friction force is increased through the stabilizing auxiliary mechanism, the deviation probability of the main frame is reduced, and a supporting device can be passed.

The invention relates to the technical field of footwear processing equipment, in particular to an anti-pinch mechanism of a sewing machine for footwear processing. The anti-pinch mechanism comprises a sewing machine, the sewing machine comprises an operating floor, a sewing machine body is fixedly mounted in the middle of the top of the operating floor, a sewing machine head is fixedly mounted at the right end of the sewing machine body, a sewing machine needle is arranged in the middle of the bottom of the sewing machine head, a nail seat is arranged under the sewing machine needle and fixedly welded to the top of the operating floor, and a conveying mechanism is mounted at the top of the operating floor. According to the anti-pinch mechanism of the sewing machine for footwear processing, two sets of first shaft rods are driven to synchronously and relatively rotate through rotation of a spline rod, so that two corresponding sets of conveying wheels synchronously and relatively rotate to extrude and convey shoes, workers do not need to manually convey the shoes, and the safety of the device during working is effectively guaranteed; and two conveying mechanisms are symmetrically mounted on the front side and the rear side of the nail seat in the front-back direction, and the stability and continuity in the shoe conveying process are effectively guaranteed.

The invention belongs to the technical field of equipment, and particularly relates to a steel aluminum tape slitting system provided with correction devices. The steel aluminum tape slitting system comprises a steel aluminum tape discharging device (21), a steel aluminum tape shaping device (22), a slitting device (24) and a tape winding device (26). The steel aluminum tape slitting system is characterized in that the steel aluminum tape slitting system is further provided with a first correction device (23) that is located between the steel aluminum tape shaping device (22) and the slitting device (24), the steel aluminum tape discharging device (21) discharges a finished steel aluminum tape and conveys the finished steel aluminum tape to the steel aluminum tape shaping device (22), the steel aluminum tape shaping device (22) conveys the discharged steel aluminum tape through rollers and the leveling of the surface is realized, and the steel aluminum tape is sent into the first correction device (23), wherein when the first correction device (23) detects out deviation of the steel aluminum tape, the first correction device (23) sends an instruction to allow the steel aluminum tape discharging device (21) to make path adjustment. The steel aluminum tape slitting system has the following main beneficial technical effects: steel aluminum tape slitting is more precise, the waste of the steel aluminum tape is less, and the cost is lower.