87results about How to "Improve buffer efficiency" patented technology

The invention relates to a method for buffering multimedia information, wherein a parameter is defined indicative of the maximum amount of transmission units comprising multimedia data that precede any transmission unit comprising multimedia data in the packet stream in transmission unit transmission order and follow the transmission unit comprising multimedia data in decoding order. The invention also relates to a system, a transmitting device, a receiving device, a computer program product, a signal and a module.

Various embodiments are described of a system and method for improved SCL decoder operation. In particular, various embodiments are described which improve the efficiency of the buffer management based on updated path metric statistics. In some embodiments, the SCL decoder may perform selective replacement to limit the extent of LLR updates per row only to the statistics that have changed since the previous update cycle. In some embodiments, the SCL decoder may perform deferred updates, which may involves in-place calculation of both ûφ=0 and ûφ=1 bit estimate (LLR) updates based on the row from which the updated row will be derived.

The invention discloses a green environment-friendly cushioning fiber package material and a preparation method thereof. The preparation method comprises the following steps: carrying out air flow drying on natural plant fibers until the water content in the fibers is 8-13%; then adding waterproofing agent, fire retardant and preservative which are used as chemical assistants; by using ethyl acetate as diluter, diluting MPU-20 urethane resin adhesive until a mixed liquid which is 3-5 times larger than the original volume is obtained; by using a spray gun as an air flow generator, sucking the mixed liquid of the chemical modification solution and the foamable MPU-20 urethane resin dispersion liquid into the air flow based on the negative pressure effect of the high-speed air flow generated when the spray gun is started, thus forming an air / liquid two-phase mixture fluid and mixing the air flow and the plant fibers; and molding to obtain the ultra-low-density (>=50kg / m<3>) package material. The material has cushioning performance superior to corrugated paper boards and honeycomb paper boards. Besides, the material has the advantages of easy mechanical processing, good bacterium resistance, low cost, good dimensional stability, high moisture resistance and the like.

The invention relates to a composite multi-cylinder-linkage buffer and application thereof. The composite multi-cylinder-linkage buffer comprises a base plate and a valve seat and is characterized inthat a hydro-pneumatic buffer and a plurality of hydraulic buffers are arranged between the base plate and the valve seat, the bottom end of each hydraulic buffer is fixedly connected to the valve seat, the piston rod of each hydraulic buffer is hinged to the bottom surface of the base plate, and multistage combined buffering is achieved through the hydraulic buffers and the hydro-pneumatic buffer. The composite multi-cylinder-linkage buffer has the advantages that multi-cylinder linkage is used to achieve multistage buffering, high buffering efficiency and a large buffering range are achieved, and the work requirements of large-load impact can be satisfied; the piston rod of each hydraulic buffer is hinged to the lower bottom surface of the base plate through a ball hinge structure, multi-cylinder linkage can be guaranteed while interference during the buffering of a multi-hole spiral buffer can be avoided, and the base plate can adapt to external impact of different angles to achieveeffective buffering.

The embodiment of the invention provides a multimedia preloading method and device applied to the technical field of the Internet. The method comprises the following steps: acquiring a to-be-played multimedia corresponding to an antecedent multimedia according to an operation state of a user; setting a preloading state of the to-be-played multimedia according to the loading progress of the antecedent multimedia and / or the operation state of the user; preloading the to-be-played multimedia when the preloading state of the to-be-played multimedia is to allow the preloading. When playing the current antecedent multimedia, whether to perform the preloading operation on the to-be-played multimedia is judged through simple judgment logic, the technical effect of loading the possibly required to-be-played multimedia in advance in idle bandwidth is realized, the waiting time of a user for waiting the buffering of the to-be-played multimedia is reduced, the buffering efficiency in idle bandwidth is improved, and the user experience is improved.

An apparatus for aggregating and switching traffic in a broadband subscriber network and methods of processing upstream and downstream traffic are provided. The apparatus includes: an upstream traffic processing unit which stores a plurality of packets received from a plurality of downlinks with respect to each subscriber link, and transmits the packets stored with respect to each subscriber link to uplinks through scheduling; and a downstream traffic processing unit which broadcasts a packet received from the uplinks to the subscriber links via a broadcast bus connected to the respective subscriber links and determines with respect to each subscriber link whether to transmit the packet to subscriber links. It is possible to efficiently aggregate, switch, and broadcast subscriber traffic in a broadband subscriber network in which upstream traffic and downstream traffic are asymmetric.

A small unmanned plane undercarriage buffer relates to the field of aviation aircrafts and solves problems of low buffering efficiency, easy bounce, low reliability of a present flat spring type buffer. The small unmanned plane undercarriage buffer comprises an external cylinder, a first spring on the external cylinder, an internal cylinder having a damping hole, an air sac between the external cylinder and the internal cylinder; an upper joint, a lower joint, a piston rod extending into the internal cylinder, a piston, a damping plate, a pressure-limiting valve, a check valve, a guide sleeve and a locking cover, wherein the piston rod is orderly covered with the piston, the damping plate and the pressure-limiting plate; the piston rod is orderly covered with the check valve, the guide sleeve and the locking cover; the check valve, the guide sleeve and the locking cover are all disposed in the external cylinder; an internal-external cylinder annular oil storage cavity is formed between the internal cylinder and the external cylinder; the damping plate axially moves along the piston rod; the pressure-limiting plate limits maximum damping force to a preset valve during compression stroke; after the locking cover is tightly screwed, the guide sleeve, the check valve and the internal cylinder are axially pressed to the lower joint; the check valve controls communication between the internal-external cylinder annular oil storage cavity and a right cavity of the internal cylinder; and two ends of a first spring are respectively pressed against the upper and lower joints. The small unmanned plane undercarriage buffer possesses high buffering efficiency, uneasy bounce, stable performance and great reliability.

The invention discloses a robot buffering foot with adjustable pretightening force. The robot buffering foot comprises a foot bottom supporting rod, a foot basic joint, a pretightening adjustment adapter sleeve, a pretightening adjustment buffer sleeve, and an adapter sleeve anti-loosening spring, wherein the foot bottom supporting rod performs a supporting and connecting function; the foot basicjoint is cooperated with the foot bottom supporting rod through a foot end buffer spring; meanwhile, the top of the foot basic joint is connected with a power source; the pretightening adjustment adapter sleeve is arranged on the lower part of the food basic joint in a sleeving manner and is cooperated with the foot basic joint through a thread; the pretightening adjustment buffer sleeve is arranged on the foot bottom supporting rod in a sleeving manner; the adapter sleeve anti-loosening spring is positioned in the pretightening adjustment adapter sleeve for carrying out loosening prevention;after the lower part of the foot bottom supporting rod penetrates through the adapter sleeve anti-loosening spring and the pretightening adjustment adapter sleeve, the foot bottom supporting rod is connected with a foot bottom ball through a foot bottom ball connecting sleeve; and the outer circumference of the upper part of the foot bottom supporting rod is provided with one circle of first groove in which a plurality of supporting rod lubrication balls are arranged. The robot buffering foot has the characteristics of reliable structure, good buffering and vibration resistance ability, adjustable pretightening force and convenience in maintenance, adjustment and replacement.

The invention relates to an undercarriage buffer which can exert a good buffering function in take-off, landing and sliding processes of an airplane. The undercarriage buffer comprises an outer cylinder 1, a fuel injection inflation valve 2, an inner cylinder 3, a fuel needle 4, a damping device 5 and a supporting ring 6, wherein the damping device 5 comprises a supporting piece 14, a connecting piece 15, a valve 16, a throttling valve 17, a return spring 18, a locking washer 19 and a piston ring 20, wherein the connecting piece 15 is fixed on the fuel needle 4 by threads at the upper part of the connecting piece 15; the throttling valve 17 is connectedwith the lower end of the connecting piece 15 by the threads; the supporting piece 14 is fixed at the lower end of the fuel needle 4; the locking washer 19 is used for the fixing between the supporting piece 14 and the connecting piece 15; the return spring 18 is mounted between the supporting piece 14 and the valve 16, and used for the return of the valve 16; four small holes are formed in the connecting piece 15 and act as damping holes during a forward stroke of the buffer; and four small holes are formed in the throttling valve 17, and act as damping holes during a reversal stroke of the buffer.

The invention discloses a damping type meal delivery robot stable in walking. The damping type meal delivery robot stable in walking comprises a walking part, a machine body, a visual integration areaand a supporting plate, the walking part is internally provided with a bottom fixing rod, a fixing support and a middle fixing rod, a buffer part is fixedly arranged in the middle of the middle fixing rod, a vibration absorption barrel fixing plate is fixedly installed at the bottom of the buffer part, and a vibration absorption barrel lower part, a vibration absorption barrel upper part and a spring are arranged inside the buffer part; and the tail ends of force arms are rotationally installed on the outer sides of second rotating shafts, and a tray bottom fixing plate is arranged at the lower end of the supporting plate. According to the damping type meal delivery robot stable in walking, the walking part adopts crawler-type design, so that the walking stability can be better guaranteedcompared with a common walking structure; vibration is absorbed through hydraulic damping of the vibration absorption barrel lower part and hydraulic damping of the vibration absorption barrel upperpart, and the stability is improved; and the design of sliding rails, spring mounting seats and tray springs is achieved, so that the stability of the sliding rails is improved again, the stability ofthe surfaces of the sliding rails is greatly improved under the cooperation of buffering and vibration absorption of the buffer part, and then the requirement for the stability of the meal delivery robot is met.

The invention relates to a single-actuating type magneto-rheological shock absorber used for an aircraft landing gear. The single-actuating type magneto-rheological shock absorber comprises an outer cylinder barrel, an inner cylinder barrel, a piston rod, a piston assembly and an aircraft wheel axle base, wherein an end cover is installed on the top of the outer cylinder barrel coaxially in a sealed mode; the inner cylinder barrel is coaxially installed in the lower end of the outer cylinder barrel in a sliding mode; the aircraft wheel axle base is installed at the lower end of the inner cylinder barrel in a threaded mode; the inner and outer cylinder barrels are coaxially provided with the piston rod, the upper end of the piston rod is fixedly installed on the end cover, and the piston assembly is installed at the lower end of the piston rod; the outer edge of the piston assembly makes friction contact with the inner wall of the inner cylinder barrel. Based on an existing aircraft landing gear buffer structure, the piston assembly capable of applying the magneto-rheological fluid technology is added, so that the shock absorber is simple in structure, low in energy consumption, small in size and fast in response, and damping force output by the shock absorber continuously changes, is adjustable and is reversible. Closed-loop semi-active control is achieved by being combined with a computer, an optimization control algorithm, a sensor, a controller and a power source, and the buffering efficiency and shock absorption effect of the shock absorber are improved.

The invention provides a buffering device of an undercarriage buffering support, and an application method of the buffering device to an oil-gas buffering support. The buffering support comprises an outer barrel and an inner barrel capable of moving along the inner wall of the outer barrel; the buffering device comprises at least one excitation part, at least one induction part, a control unit and a sensing part, wherein the at least one excitation part is distributed on the inner side of an outer barrel wall of the buffering support; the at least one induction part is distributed in the inner barrel of the buffering support and is used for responding excitation of the corresponding excitation, so that the inner barrel moves along the outer barrel of the buffering support to generate buffering damping; the control unit is used for controlling the excitation part in real time according to a movement signal of the buffering support; and the sensing part is distributed at the lower end of the buffering support and is used for detecting the movement signal of the buffering support and feeding the movement signal back to the control unit. According to the buffering device of the undercarriage buffering support, a relatively complicated outer condition is adapted according to a semi-automatic control manner and the airplane landing buffering efficiency is improved; and the safety and the comfort of an airplane landing process can be further increased by using a good control algorithm.

The invention discloses a buffer device of a textile machine. The buffer device comprises a top plate, an upper supporting plate, a lower supporting plate and a bottom plate. Top plate spring fixing rods are fixedly welded to the lower side of the top plate. The upper supporting plate is arranged on the lower side of the top plate. Upper supporting plate spring fixing rods are fixedly welded to the upper end of the upper supporting plate. First first-stage springs are fixedly installed between the top plate spring fixing rods and the upper supporting plate spring fixing rods. The lower supporting plate is fixedly connected to the lower side of the upper supporting plate through second-stage springs. Second first-stage springs are fixedly arranged on the lower side of the lower supporting plate. First telescopic rods are arranged on the upper side of the bottom plate. Second telescopic rods are inserted into the upper sides of the first telescopic rods. The second telescopic rods and the first telescopic rods are stainless steel cylinders, and the upper ends of the first telescopic rods are hollow. The buffer device of the textile machine is simple in structure, convenient to use and practical and can achieve the buffer function effectively, meet different requirements and reduce noise pollution.

The present invention discloses a wireless multicasting acting method in hybrid network living broadcast system, whose step is: (1) node added into multicasting address of frequency channel, acting heartbeat bag is initialized as multicasting acting if wireless multicasting is not received, otherwise new multicasting acting is decided by competition. (2) wireless multicasting acting, broadcast source and wire node are transmitted interactive, received buffering data multicast to common wireless node of the present wireless network, and responses its data request; (3) common wireless node initializes buffer zone according to heartbeat bag generated by multicasting acting, and requests data to acting according to buffer zone filling situation. (4) if common wireless node roam into new network which has multicasting acting, service can also be accepted, otherwise node-self becomes to multicasting acting. (5) if wireless multicasting acting roams out of original network, all of common wireless node in original network competes new multicasting acting, if new network has multicasting acting, new multicasting acting is decided by competition, otherwise multicasting acting is maintained.

The invention relates to a compound rear protective plate of a truck. The rear protective plate is composed of a collision bumper and at least two steel plates, wherein the outermost layer of the steel plate consists of a gel coat layer, a structural layer, a gluing layer, a base coat layer and a steel plate layer; the steel plates are parallel to each other and gaps are arranged among the steel plates, and the gaps are larger than 2cm and smaller than 8cm; the gel coat layer is of neopentyl glycol-o-phthalate resin, the structural layer is composed a plurality of epoxy furan resin layers and fibrages, and both the gluing layer and the base coat layer take the epoxy furan resins as the major material; and the collision bumper is a hydraulic buffer. The rear protective plate has favorable gloss, colorableness and favorable properties such as water proofing, chemical resistance, corrosion resistance, wear resistance, impact resistance and the like, is light in weight and favorable in collision rebound resilience, can effectively prevent small impact and buffer huge impact and vibration, and simultaneously protects the collision bumper. To sum up, the compound rear proactive plate of the truck has the advantages of safety, high efficiency, light weight, corrosion resistance and beautiful appearance.

The invention belongs to the technical field of tempered glass, and particularly relates to composite tempered glass. The composite tempered glass comprises inner-layer glass, outer-layer glass, interlayer sheets and a buffer module; the buffer module is arranged between the inner-layer glass and the outer-layer glass, and the interlayer sheets are arranged on the sides, adjacent to each other, ofthe inner-layer glass and the outer-layer glass correspondingly; the buffer module comprises buffer ellipsoids and buffer balls; the buffer ellipsoids and the buffer balls are arranged on the sides,adjacent to each other, of the inner-layer glass and the outer-layer glass at intervals correspondingly, the middles of the buffer ellipsoids on the inner-layer glass correspond to the buffer balls onthe outer-layer glass, and the middles of the buffer ellipsoids on the outer-layer glass correspond to the buffer balls on the inner-layer glass; lantern rings are arranged on the contact parts of the buffer ellipsoids and the buffer balls; and the buffer balls are formed by hard sections and soft sections which are combined. The buffer efficiency of the inner-layer glass and the outer-layer glass can be improved, broken inner-layer glass and outer-layer glass are adsorbed, thus the broken glass is prevented from falling off, and thus the safety factor is increased.

The invention discloses a retention-type rear cover separation device capable of braking and buffering based on large-impulse collision and belongs to the technical field of missile fire. The retention-type rear cover separation device comprises an accommodating housing, a metal shearing piece group, a positioning block, a force transfer seat and limited posts, wherein a rear cover is mounted on the outer circumferential surface of a missile body; the missile body and the rear cover are mounted in a launch canister; a vertical part on one side of the force transfer seat is opposite to the rearcover, and a horizontal part on the other side of the force transfer seat is opposite to long metal sheets of the metal shearing piece group; the positioning block is mounted on the upper surface ofthe horizontal part of the force transfer seat; one ends of two or more limited posts are mounted in the positioning block, and the other ends of the two or more limited posts penetrate through holesof the metal shearing piece group; and the accommodating housing is a housing with two side surface openings and an end surface opening, and is fixedly connected with the launch canister after being mounted on the positioning block and the metal shearing piece group in a buckling manner. The retention-type rear cover separation device is simple in principle and compact in structure, and can quickly, safely and reliably separate the missile body from the rear cover.

The invention discloses an elevator buffer pile which is easy to adjust, and relates to the technical field of elevators; A screw rod is installed, and the screw rod is threadedly connected in the screw sleeve, and the screw rod is locked on the screw sleeve through a lock nut, and a lower buffer seat is installed at the lower end of the screw sleeve; the present invention facilitates rapid adjustment, and the adjustment Convenient and fast, save time, high strength, and high cushioning efficiency.

The invention belongs to the technical field of plastic sheets, specifically to an auto lined light plastic sheet, comprising a plate, a cavity, rebounding modules and a buffering modules; a pluralityof the rebounding modules are arranged on the plate, and the cavity is formed on the inside of the plate, and the buffering modules are arranged between two adjacent rebounding modules on the insideof the cavity; the rebounding modules comprise a first elastic plate group, a second elastic plate group, a extrusion spring and a rebounding unit; one end of the first elastic plate group is fixedlyconnected with the inner wall, located above the cavity, of the plate; the second elastic plate group is fixedly connected with the other end of the first elastic plate group; the rebounding unit is arranged inside the second elastic plate group; the buffering modules comprise flat wire springs, a rectangular sleeve and a block, the buffering modules are composed of a plurality of flat wire springs splicing together with each other, and the flat wire springs at the two ends of the buffering modules are respectively connected with an adjacent first elastic plate group. The invention may improvethe buffering efficiency of the plate and extend the service life of the plate.

The embodiment of the invention discloses an implementation method and device of interactive stream media buffering. The method comprises the following steps of: receiving access requests for the same stream media object; judging whether the steam media object exists in a buffering zone according to the access requests; if so, creating a new buffering zone and storing the stream media object in the new buffering zone; if not, judging whether the distribution space of the buffering zone is used up; if so, storing the stream media object in rest buffering zones; and if not, replacing one zone in distributed buffering blocks in the buffering zone. According to the embodiment of the invention, by adjusting the size of the buffering zone, the utilization rate of buffering blocks can be increased and the interaction time of stream media can be reduced; and by storing requests for the same stream media object, the resource utilization rate can be increased, the burden of a server can be reduced, and the buffering efficiency and the hit rate of the server can be increased.

The invention discloses an oil-gas separation type variable oil hole composite crash-resistant buffer. The buffer comprises a piston rod assembly and a metal expansion cylinder, the piston rod assembly comprises a piston rod, a floating piston and a conical head, the lower end of the piston rod makes contact with the conical head and is fixed through a screw, a space defined by the piston rod andthe conical head serves as an air cavity, the floating piston is arranged in the air cavity and can float up and down, an oil hole is formed in the center of the bottom of the conical head, and the oil hole can be shrunk according to stress; the metal expansion cylinder comprises a sizing guide belt, a reducing belt and an expansion cylinder body, the sizing guide belt, the reducing belt and the expansion cylinder body are sequentially connected and wrap the conical head, the outer diameter of the upper end of the conical head is larger than the inner diameter of the expansion cylinder body, the inner space of the expansion cylinder body serves as an oil cavity, an oil needle is arranged in the oil cavity, the oil needle is inserted into the oil hole to change the size of the oil hole whenthe buffer works. During working, the metal expanding energy-absorbing buffer and the oil-gas separation type buffer play roles at the same time, so that the buffering efficiency and the crash resistance of the aircraft are effectively improved.

A landing gear cushioning mechanism and landing gear are disclosed. The cushioning mechanism has a leaf spring, wherein one end of the leaf spring is bent downward to form a folding arm for connectingthe landing gear wheels, the middle part of the leaf spring is articulated with the fuselage of the aircraft at the first hinge point, the other end of the leaf spring is provided with a buffer, thebuffer comprises an outer cylinder and a piston rod, the outer cylinder is arranged at the lower end of the leaf spring, the piston rod has one end of a piston protruding into the outer cylinder afterpassing through the leaf spring, and the other end of the piston rod is articulated with the fuselage of the aircraft at the second hinge point. The piston divides the inner cavity of the outer cylinder into an upper sealing cavity and a lower sealing cavity, and the piston is provided with a damping hole penetrating in the axial direction, and the inner cavity of the outer cylinder is filled with liquid. Landing impact energy of an aircraft is absorbed under the combined action of a tire, the leaf spring and the buffer. Thus, the aircraft is guaranteed to have high buffering efficiency, theoverload coefficient is reduced, and the landing requirements of the aircraft with large sinking speed and small overload are met.

The invention provides an electromagnetic buffering unit of a casting device. The electromagnetic buffering unit comprises a buffering plate, conductor buffering guide rails, a buffering module, a detection module, guide rail outer shells, an insulation structure, a control module and a storage battery precharging the control module. One end of the buffering plate is connected to the rear end of the casting device, and the other end of the buffering plate is arranged in the buffering guide rails and provided with the buffering module. The two sides of the buffering plate are embedded into grooves of the guide rail outer shells and move relative to the buffering guide rails. The insulation structure is located between the conductor buffering guide rails and the guide rail shells. The detection module is used for sending a trigger signal to the control module when detecting that the buffering plate is at a movement state. The control module is used for receiving the triggering signal sent by the control module and controlling a closed loop composed of the buffering module and the conductor buffering guide rails. The buffering module is used for generating ampere force opposite to the movement direction of the buffering plate in the closed loop. By adoption of the electromagnetic buffering unit, buffering efficiency of the recoil force of the casting device is improved.

The invention belongs to the technical field of polyethylene pipes, and specifically discloses a high-strength polyethylene pipe for a building. The high-strength polyethylene pipe for the building comprises an outer pipe body, an inner pipe body, a support module and a buffer module, wherein the outer pipe body sleeves the outer side of the inner pipe body, and an annular cavity is formed betweenthe inner wall of the outer pipe body and the outer wall of the inner pipe body; the support module and the buffer module are arranged at the inner side of the annular cavity; and the support modulecomprises a first annular steel sheet, a second annular steel sheet and insertion-connection teeth; the first annular steel sheet is arranged on the inner wall of the middle part of the outer pipe body; the second annular steel sheet is arranged on the outer wall of the middle part of the inner pipe body; and the insertion-connection teeth are arranged on the adjacent sides of the first annular steel sheet and the second annular steel sheet separately. According to the high-strength polyethylene pipe for the building, the outer pipe body and the inner pipe body are supported through the co-action of the buffer module and the support module, so that the buffer efficiency is effectively increased; and force relief is carried out between the outer pipe body and the inner pipe body by virtue of a cross elastic frame or an elastic packing auger, so that the damage probability of the outer pipe body due to local stress is lowered, and the service life of the polyethylene pipe is prolonged.

The invention relates to a buffering landing leg of a reusable launch vehicle and a buffering method of the buffering landing leg, and belongs to the technical field of landing legs. The buffering landing leg comprises an outer sleeve (5), an inner lining cylinder (3), a concave type cylinder (7), a rotating motor (1), a pushing rod (4), a floating piston (8), a piston cylinder (12), a gasket (10), a honeycomb-like buffering material (11), a spherical hinge (13), a foot pad (14) and an end cover (9). The buffering landing leg is characterized by combining three buffering modes which are the oil buffering mode, the damping rubber buffering mode and the honeycomb-like buffering mode, and multi-level buffering can be conducted. The buffering landing leg can adapt to different initial landing situations and can be retracted and released automatically, and manual ground operation is not needed.

The invention discloses a damping mechanism for concrete processing equipment. The damping mechanism comprises a base and a bottom base, the upper end of the base and the lower end of the bottom baseare each fixedly connected with a steel plate, rubber pads are fixedly connected between the corresponding steel plates, the lower ends of supporting columns penetrate through second sliding plates and are slidingly connected inside fixed columns, the lower ends of the supporting columns are fixedly connected with the inner bottoms of the fixed columns through metal elastic sheets, the supportingcolumns are slidingly sleeved with first sliding plates, and the first sliding plates are fixedly connected with the second sliding plates through rubber cylinders. According to the device, vibrationstress generated when the concrete processing equipment works can be sequentially shared and absorbed, multiple damping protection effects are achieved, the buffering efficiency is greatly enhanced, the service life of the concrete processing equipment is prolonged, the working efficiency is improved, the service life of the equipment is prolonged, and the using cost is saved.

The invention discloses a pneumatic buffering device and a control method. The pneumatic buffering device comprises a cylinder, a supporting base and a control device, wherein the cylinder comprises acylinder body and a piston rod; the supporting base is arranged on the side corresponding to the first end of the cylinder body, and the first end of the cylinder body is provided with a rod cavity of the cylinder body; the supporting base is provided with a supporting hole, and the supporting hole and the piston rod are coaxially arranged; the piston rod is partially arranged in the supporting hole and is in sliding connection with the supporting hole; the control device is used for detecting the air pressure intensity of the cylinder body and the position information of the piston rod, andadjusting the moving direction and the moving speed of movement of the piston rod along the supporting hole according to the air pressure intensity and the position information. Due to the pneumatic buffering device and the control method, the pneumatic buffering device can bear the bending torque, the moving speed of the piston rod can be adjusted according to different kinetic energy of materials, so that the pneumatic buffering device adapts to materials in different sizes, at different falling points and with different kinetic energy, and the overall efficiency of the pneumatic buffering device is improved.