62results about How to "Flexible and accurate adjustment" patented technology

The invention discloses a lithium ion cell pole tip applying method, which arranges the dressing section and the dead section by the design parameter interval of the pole tip and puts foil bend to start continues applying on the width direction of the coating machine headstock to obtain the pole tip extended on the band direction of the dead margin area. The invention also provides a coating machine which can achieve the method.

The invention relates to a pole piece coating method and a coating nozzle. The invention has the method that in the width direction of a coating head of an incline extrusion coating machine a coating material section and a sealing section are arranged at intervals according to the design parameters of a pole piece, and laid into a foil tape to be continuously coated when the machine is started, thereby obtaining the pole piece extending along the direction of a transporting tape in the blank area of the sealing section. The invention fully combines the advantages of a prior incline extrusion coating method and a discontinuous coating method, the coating can be continuous, the efficiency is high, and the thickness of the pole piece is uniform and consistent. The invention also provides the coating nozzle used for the implementation of the coating, the material feeding of the coating nozzle is uniform, the processing is simple, and the adjustment is flexible and accurate.

The invention belongs to the field of pipe welding technology, and particularly relates to a multilayer and multichannel automatic welding method for a circumferential welding seam of a round pipe. According to the method, the round pipe rotates relative to a welding gun in the welding process, and the welding position and welding angle of the welding gun in three-dimensional direction can be automatically adjusted so as to realize automatic welding of the circumferential welding seam. By adopting the welding method provided by the invention, the round pipe rotates relative to the welding gun in the welding process, and the welding position and welding angle of the welding gun in three-dimensional direction can be automatically adjusted, thus the welding position and the welding angle can be flexibly and accurately adjusted so as to automatically perform multi-layer multipass welding to form a circumferential welding with relatively good mechanical performance.

The invention discloses a detachable electromagnetic edge-pressing drawing die and a control method for edge-pressing force. The detachable electromagnetic edge-pressing drawing die comprises a platedrawing system, an electromagnetic edge-pressing system and an excitation current control system. A female die body in the die is fixed to a lower die seat through fastening screws; a plate is placedin a groove of a limiting plate; a male die body adopts a ladder form, and the male die body, a male die fixing plate and a male die cushion plate are fastened on an upper die seat through fastening screws; and a combined edge-pressing ring is composed of a detachable connecting plate and an edge-pressing ring body. The combined edge-pressing ring is matched with a magnetic ring and fastened by aninner set of fastening bolts and an outer set of fastening bolts which are distributed in a staggered mode in the circumferential direction. An overlap joint connector matched with the combined edge-pressing ring is formed in the inner edge of a magnetic guide ring, and a groove is formed in the upper end face of a fixed ring to store an electromagnetic coil. Accurate control over an excitation current in the electromagnetic coil is achieved in the mode that a designed controllable direct current power supply is adopted to provide the adjustable excitation current to the electromagnetic coil.According to the drawing die, the precise controllable edge-pressing force can be exerted on the flange part of the plate in the drawing process, the connecting plate is detachable, thus the die canbe conveniently replaced, switching response of the electromagnetic force and the edge-pressing force is quick, the production cost can further be reduced, and the production efficiency is improved.

The invention provides an image processing method and a user terminal, wherein the image processing method includes: displaying a preview image in a camera photographing region when a start command for a camera of the user terminal is received; if the preview image contains a face element, acquiring the environmental parameters of the preview image wherein the parameters include: a sensitivity ISOvalue and / or a brightness contrast value; setting an image processing coefficient for the preview image according to the environment parameters; and using the image processing coefficient to performpreviewing on the preview image processing. The technical solutions in the embodiments of the present invention are beneficial to improving the flexibility of image processing.

The invention relates to a multi-directional continuous adjustable health care and treatment double use pillow, which is applied on daily sleep or medical science to correct and keep the physiological curvature of a cervical spine, and consists of a plate seat, and a right-side lateral recumbent pillow, a supine pillow, a left-side lateral recumbent pillow, and a neck pillow which are arranged on the plate seat, wherein, the right-side lateral recumbent pillow is positioned at the right side of the supine pillow, the left-side lateral recumbent pillow is positioned at the left side of the supine pillow, and the neck pillow is positioned in front of the supine pillow; and is characterized in that the left-side and the right-side lateral recumbent pillows are both provided with a spine inclined adaptation angle continuous regulation mechanism and several blocks of height regulation components; the left-side and the right-side lateral recumbent pillows are also provided with an excessive lateral recumbent inhibition angle continuous regulation mechanism and a back-sliding stopping block which is fixed on the inner side edge of a top plate surface, and moreover, the cut angle value of the front side between the two lateral recumbent pillow sand the supine pillow are respectively a sliding angle and a complementary angle; and when necessary, a baroreceptor or an acoustic photo-electronic indicator concerning using guidance can also be arranged. Each pillow can be used singly and corporately, and the height can be adjusted, thus leading people to sleep in accordance with physiology no matter lying on sides or backs and to have a good sleep under a good functional condition.

The invention provides a noise control method and control device, a readable storage medium and an air conditioner. A user can freely set a target noise value, the draught fan rotating speed is adjusted according to the target noise value, precise control over noise is achieved, individualized requirements of different users are met, and the user experience is improved. The noise control method specifically includes the following steps that the air conditioner receives a noise control instruction, and the air conditioner enters the noise control mode; the air conditioner obtains the relative position parameter, relative to the air conditioner, of the user and the target noise value, the air conditioner judges whether the current noise value meets the target noise value set by the user or not by automatically conducting table lookup; if the current noise meets the target noise value, the current draught fan rotating speed is kept; and if the current noise does not meet the target noisevalue, the draught fan rotating speed is adjusted so that the current noise can meet the target noise value.

The invention discloses a ceramic medium waveguide filter based on a capacitive cross coupling flying rod. The filter comprises a coupling membrane sheet and an adjustable flying rod. The coupling membrane sheet used for separating two cavity bodies and carrying out fine adjustment on coupling quantity is arranged between adjacent two cavity bodies. The adjustable flying rod used for adjusting thecapacitive coupling quantity between adjacent resonators is arranged between adjacent two resonance columns. The adjustable flying rod comprises a medium unit and a silver layer unit, wherein the medium unit and the silver layer are up-down connected and are adjustable in size. The silver layer unit is parallel to the plane formed by the resonance columns in the arranging direction. The exteriorof the silver layer unit is connected with an electric screw driver which is used for adjusting the area of the silver layer unit. According to the invention, the filter is novel in design, simple instructure and convenient and highly efficient to use and is characterized by convenient debugging and flexible and precise adjustment; capacitive coupling of multi-cavity cross coupling of three cavities and the like is achieved; excellent performance of the filter is ensured; cost is saved; the filter is safe and reliable; production efficiency and application effects are greatly improved; and more selections are provided for radio frequency engineers to design the filter.

The invention discloses a PCB double-sided board grinding device for an electronic product and a working method thereof. The device comprises a machine table, wherein a clamping seat and a grinding table are arranged on the machine table, a chip collecting box is mounted on the grinding table, the clamping seat is of a rectangular box body structure, a fixing plate is mounted in the clamping seat,a first air cylinder is further arranged in the clamping seat, and a piston rod of the first air cylinder is connected with a connecting strip. According to the device, the first cylinder piston rodis contracted, so that one mounting plate is driven to move through the connecting strip, the mounting plate drives a rod sleeve to slide on a fixing rod, then a clamping strip drives a rotating wheeland a limiting rolling wheel to rotated, the rotating wheel drives the other clamping strip to move, the two clamping strips are driven to move towards each other, and then two moving side columns are driven to move towards each other through the two mounting plates, so that the technical problem that the PCB board grinding device is prone to be stuck due to the conventional screw rod adjusting clamping in the prior art is solved.

The invention discloses a steel wire water bathing and air cooling quenching unit which comprises a water bathing quenching unit body and an air cooling quenching unit body. The air cooling quenching unit body is arranged on the downstream portion of the water bathing quenching unit body, and the air cooling quenching unit body and the water bathing quenching unit body are in mutual linkage. The water bathing quenching unit body is provided with a plurality of water baths, the length of the water baths is controlled through movable baffles capable of moving, and accordingly the water bathing quenching time for steel wires is controlled. The air cooling quenching unit body can control the temperature independently and intelligently, and the influences of the environment temperature on air cooling are reduced. According to the water bathing and air cooling quenching unit, the quenching time and quenching length can be adjusted freely, and products with different specifications and strengths can be produced at the same time; and in addition, the water bathing and air cooling quenching unit can control the temperature independently, so that the steel wires are quenched within the required quenching temperature range all the time, the quenching effect of the steel wires is improved, and the stability of mechanical properties of the steel wires is guaranteed.

The invention relates to a drilling machine used for electric power construction, and belongs to the technical field of construction equipment of a power supply station. The drilling machine comprises a frame installed with wheels. The frame is provided with an operation room. The operation room is internally provided with an electric control unit. An operation room housing is provided with an observation window and an alarm apparatus. The upper end face of the frame is provided with a first track. The first track is provided with a vertical support. The vertical support is provided with a second track. The second track is provided with a horizontal support. The horizontal support is provided with a third track. The third track is provided with a workbench. A spindle cabinet is installed on the workbench. The spindle cabinet is provided with a first drill stem and a second drill stem. The first drill stem is provided with a pressure sensor and a guiding-out groove. The first drill stem is connected with an arc drill bit. The second drill stem is connected with a conical drill bit. The internal of the second drill stem is provided with a dynamometrical bar. The first drill stem and the second drill stem are connected with a motor. The motor, the dynamometrical bar, and the pressure sensor are electrically connected with the electric control unit. The drilling machine can accurately grasp drilling strength, and a proper drill bit is used according to workplaces. The drilling machine is advantaged by convenient drill bit position adjustment and high working efficiency.

The invention discloses a retransmission expiration time optimization method, retransmission expiration time optimization equipment, and a computer readable storage medium. The method comprises the steps of when TCP data to be transmitted is monitored, determining whether the quantity of transmitted TCP data reaches a preset value, wherein every transmission of TCP data is completed, the round trip delay and the retransmission expiration time of the transmitted TCP data are used as a sample set to be written into a preset sample database; if the quantity of the transmitted TCP data does not reach a preset value, determining the retransmission expiration time of the TCP data to be transmitted according to the bit value of the TCP data to be transmitted; and if the quantity of the transmitted TCP data reaches or exceeds the preset value, determining the retransmission expiration time of the TCP data to be transmitted according to a preset sample regression model and each sample set in the sample database. According to the method, equipment and medium provided by the invention, accuracy of the retransmission expiration time can be effectively improved.

The invention belongs to the field of drilling tool testing in a petroleum natural gas industry, and specifically relates to a high temperature screw drill test bench. The high temperature screw drill test bench comprises a load system, a water path circulation system, a fixed installation system, a central control system and a drilling tool heating system. The load system comprises a brake, a reduction box and a torque sensor. The water path circulation system comprises a water diversion transmission assembly, a slurry pump and a circulating water pipeline. The fixed installation system comprises a base, a drilling tool holding mechanism and a tail end clamping mechanism. The drilling tool heating system is composed of a plurality of medium heating boxes. The brake, the reduction box, the torque sensor, the water diversion transmission assembly, the plurality of medium heating boxes, the drilling tool holding mechanism and the a tail end clamping mechanism are successively and fixedly connected to the base. A screw drill to be tested penetrates through the medium heating boxes. The high temperature screw drill test bench has the advantages that the drilling tool heating system is provided, and the drilling tool heating system is capable of really simulating the practical conditions of the drilling tool in a well, so that the usage performance of the drilling tool under a high temperature is practically measured.

The embodiment of the invention provides a heat supply load prediction method and device. The method comprises the steps of: determining the indoor temperature prediction range of a target time periodaccording to current indoor environment parameters and an indoor temperature prediction model; and determining the heat supply load prediction range of the target time period according to the indoortemperature prediction range, the outdoor prediction environment parameters of the target time period and a heat supply load prediction model. With the heat supply load prediction method and device ofthe invention adopted, heat supply load can be changed into a heat supply load interval from a traditional load curve on the premise of meeting the comfort requirement of a human body, so that totalheat supply load has elasticity in each time period, and therefore, the peak regulation of a thermoelectric unit can be more accurate and flexible.

This invention discloses a conversion method for the favorite TV picture color space including the following steps: first of all, selecting the armed color sphere including a brightness sphere, a tone sphere and a saturation sphere, then setting corresponding target color sphere to test the color information of each pixel in the input image signals and convert it to the corresponding target color sphere when it belongs to the armed color sphere then to output the determined processed image signals.

The invention discloses a multi-channel single-head unwinding device which comprises a rack, a plurality of unwinding assemblies and a deviation rectifying assembly, placing frames are arranged on the rack, the placing frames are distributed in a staggered mode, each placing frame is provided with the multiple unwinding assemblies, and each unwinding assembly comprises an unwinding frame, an unwinding shaft and a brake mechanism. The brake mechanism is arranged on the unwinding frame, the unwinding shaft is connected with the brake mechanism, and a coiled material is arranged on the unwinding shaft; and the deviation rectifying assembly comprises deviation rectifying drivers and a linear sliding rail, the linear sliding rail is arranged on the placing frame, each deviation rectifying driver is connected with the corresponding unwinding frame, and the deviation rectifying drivers drive the unwinding frames connected with the deviation rectifying drivers to linearly move along the linear sliding rail. According to the multi-channel single-head unwinding device, multi-channel unwinding and independent control are achieved, the unwinding efficiency and the space utilization rate are improved, and adjustment is more flexible and accurate.

The invention discloses a machining device for an anti-skid composite steel plate. The machining device for the anti-skid composite steel plate comprises a bottom box, wherein two symmetrical supporting legs are fixedly installed at the bottom of the bottom box; a stand column is fixedly installed on the right side of the bottom box; sliding rails are fixedly installed on the inner walls of the left side and the right side of the bottom box correspondingly; sliding blocks are slidably connected to the sides, close to each other, of the two sliding rails correspondingly; a supporting plate is fixedly installed between the two sliding blocks; two symmetrical electric push rods are fixedly installed on the inner bottom wall of the bottom box; the output ends of the two electric push rods are fixedly connected with the bottom of the supporting plate; six bearing frames are fixedly installed on the top of the supporting plate; each bearing frame is provided with a rotating rod; the outer surfaces of the rotating rods are fixedly sleeved with conveying wheels and belt wheels; belts are connected among the six belt wheels; a through hole is formed in the top of the bottom box; a vertical groove is formed in the front face of the bottom box; and the front face of the rotating rod at the left end sequentially penetrates through the bearing frame and the vertical groove and is fixedly provided with a first handle. The machining device for the anti-skid composite steel plate provided by the invention is compact in structure and easy to operate, and the machining efficiency of the anti-skid composite steel plate is improved.

The invention discloses a synchronous width modulation guide rail system of a crest welder. Fixed guide rails are hung on guide shafts through guide sleeves and are jacked tightly and fixed through jack screws so that the fixed guide rails are prevented from moving, the guide shafts are fixed on a support, movable guide rails are hung on the guide shafts through guide sleeves, and width modulation nuts are welded on the movable guide rails and form threaded fit with width modulation thread shafts. When the thread shafts rotate, the movable guide rails are hung on two guide shafts and cannot rotate, the movable guide rails slide along the guide shafts to achieve width modulation, the three width modulation thread shafts are connected together through gears with the same size and chains, when one width modulation thread shaft rotates, the other two width modulation thread shafts accordingly rotate to achieve synchronous transmission, the two guide shafts have the functions of hanging and guiding the guide rails to move, hand wheels and the three width modulation thread shafts have the functions of driving the movable guide rails to move, bearings bear the width modulation thread shafts and limit axial movement of the width modulation thread shafts, and the transmission gears and the transmission chains are connected with the three width modulation thread shafts to achieve the synchronous transmission.

The invention belongs to the field of pipe welding technology, and particularly relates to an automatic welding method for a circumferential welding seam of a round pipe. According to the method, the round pipe rotates relative to a welding gun in the welding process, and the welding position and welding angle of the welding gun in three-dimensional direction can be automatically adjusted so as to realize automatic welding of the circumferential welding seam. By adopting the welding method provided by the invention, the round pipe rotates relative to the welding gun in the welding process, and the welding position and welding angle of the welding gun in three-dimensional direction can be automatically adjusted, thus the welding position and the welding angle can be flexibly and accurately adjusted so as to automatically perform multi-layer multipass welding to form a circumferential welding with relatively good mechanical performance.

The invention proposes a novel vacuum cupping device which can easily adjust the suction force. The negative pressure in the tank body is continuously enhanced by pulling the pull rod with the knob nut to lift the rubber disc, thereby achieving the effect of cupping. And the air pressure can be adjusted by rotating the knob nut, which is easy, simple, fast and accurate, and is conducive to improving the therapeutic effect.

The invention discloses a four-wheel adjusting type vehicle parking automatic deviation rectifying device and a deviation rectifying method of the four-wheel adjusting type vehicle parking automatic deviation rectifying device, and belongs to the field of parking equipment. The automatic deviation rectifying device comprises a deviation rectifying actuating mechanism assembly and a position detecting mechanism assembly, wherein the deviation rectifying actuating mechanism assembly utilizes four sets of rolling deviation rectifying modules to cooperate with a lateral adjusting mechanism to achieve deviation rectifying adjustment of the parking position of a vehicle, the structure design is simple and compact, and the deviation rectifying action is more stable and reliable; the position detecting mechanism assembly detects the parking position of the vehicle by using a distance sensor capable of doing ascending and descending movement, the distance deviation of the same side of the vehicle is detected by the distance sensor to determine the torsion angle required to be adjusted, and the deviation distance of the front-rear direction or the left-right direction of the vehicle is determined by the detection value of the distance sensor on the opposite side, so that the vehicle position detection is comprehensive and accurate, the use cost is lower, and the parking of the vehicle isnot influenced. Good data support is provided for automatic deviation rectifying of the vehicle, and accuracy and stability of deviation rectifying adjustment of the vehicle are improved.

The invention provides a method, system and device for identifying a no-parking area based on a passive radio beacon. The range of the no-parking area is identified by a broadcast signal sent by a passive radio beacon device arranged in the no-parking area, and when a user needs to park a target vehicle, a scanning communication device starts signal scanning to identify whether the broadcast signal sent by the passive radio beacon device exists around or not; when the broadcast signal transmitted by the passive radio beacon device is identified, the scanning communication device judges that the target vehicle enters the no-parking area identified by the passive radio beacon device, and sends prompt information that the target vehicle cannot be parked to a user.

The invention provides a wood micro-drill resistance material cleaning sample detection fixing device. The device comprises a sample fixing unit, a detection equipment fixing unit, a position adjusting sliding rail unit and an overall stable support unit, wherein the sample fixing unit is used for horizontally and transversely fixing a material cleaning sample, the detection equipment fixing unitis arranged on one side of the sample fixing unit, which is fixed with the cleaning material sample, and the detection equipment fixing unit is used for placing detection equipment, the position adjusting sliding rail unit is arranged on the lower portion of the detection equipment fixing unit, and the overall stable support unit is used for stably supporting the position adjusting sliding rail and the sample fixing unit. The wood micro-drill resistance material cleaning sample detection fixing device provided by the invention can flexibly adjust the needle insertion position of the detectionequipment on the detected sample and ensure the stability of the detection equipment in the process of detecting the detected sample.

The invention relates to an energy storage device which is designed to provide and / or receive electrical energy in the form of an n-phase current and an n-phase voltage, where n ≥ 1. The energy storage device comprises n energy supply branches, wherein each of the energy supply branches has a multiplicity of energy storage modules connected in series. The energy storage modules each comprise an energy storage cell coupling module with coupling module connections and a coupling device with coupling elements which are designed to selectively connect the energy storage cell module to the particular energy supply branch via the coupling module connections or to circumvent the energy storage cell module in the particular energy supply branch. Each of the energy storage cell coupling modules in turn has a line of coupling modules with a multiplicity of energy storage cell branch modules which are connected in series and have an energy storage cell branch with a series circuit comprising an energy storage cell branch coupling element and at least one energy storage cell and a circumvention branch coupling element which is connected in parallel with the energy storage cell branch.

The invention provides a method, system and device for identifying a parking station based on a passive radio beacon. The range of the parking station is identified by a broadcast signal sent by a passive radio beacon device arranged at the parking station, and when a user needs to park a target vehicle, a scanning communication device starts signal scanning to identify whether the broadcast signal sent by the passive radio beacon device exists around or not; when the broadcast signal transmitted by the passive radio beacon device is identified, the scanning communication device judges that the target vehicle enters the range of the parking station identified by the passive radio beacon device, and sends prompt information to the user to guide the user to park the target vehicle into the parking station.

The invention discloses a plastic extruding machine for plastic welding. The plastic extruding machine comprises a melting device. The melting device comprises a main motor, a material conveying hopper, a heating pipe, a material conveying screw and a plastic forming mold. A position adjusting device used for adjusting the position of the melting device is arranged on the lower portion of the melting device. The position adjusting device comprises a fine adjustment device used for adjusting the front-back position of the melting device, an angle adjusting device used for adjusting the included angle between the axis of the heating pipe and the horizontal line, a rough adjustment device used for adjusting the front-back position and the left-right position of the melting device, and a transmission device used for making the whole plastic extruding machine to move. The position of the plastic forming mold relative to a welding joint can be adjusted conveniently, flexibly and accurately, and the plastic extruding machine is suitable for plastic welding and used is used for crushing, softening, melting, exhausting and extruding of plastics.

The invention provides a spiral adjustable thermoelastic carding device, a carding cover plate and a carding machine. The spiral adjustable thermoelastic carding device comprises a carding needle, a spiral spring and a base, the carding needle is positioned above the spiral spring, the upper end of the spiral spring is connected with the bottom of the carding needle, the lower end of the spiral spring is fixed in the base, a base cloth is arranged above the base, the base cloth transversely penetrates through a spring gap of the spiral spring, an electric heating ceramic sheet is arranged inside the base, the electric heating ceramic sheet is connected with the spiral spring, and a transmission gear is arranged below the base. The spiral adjustable thermoelastic carding device has the beneficial effects that comb needles are heated through the electrothermal ceramic sheet, thus, when the comb needles comb fibers, the fibers soften and the rigidity is reduced, the carding efficiency andquality can be improved, and the fiber straightening parallelism can be improved; and the spiral spring is arranged at the lower ends of the comb needles, so that the action force of the fibers can be effectively buffered by the comb needles in the combing process, and damage of the comb needles to the fibers is reduced.

The invention belongs to the technical field of bridge construction, and particularly relates to an assembly type segmental box girder support-free suspension and locking construction method which comprises the steps that (1) a suspension beam is placed and fixed to the top face of a pier top zero block, and a screw jack and a three-way jack are arranged at the two ends of the suspension beam; (2)a hanging support is installed on the first pair of prefabricated section box girders in advance, and the first pair of prefabricated section box girders is hoisted to a screw jack; (3) measuring theposition of the prefabricated segment box girder, replacing a screw jack with a three-way jack to support the first pair of prefabricated segment box girders, and adjusting the prefabricated segmentbox girders with the three-way jack; (4) mounting a wet joint template; (5) pouring a wet joint; (6) tensioning the first pair of prefabricated section box girders; and (7) dismounting and transferring the hanging support and the hanging beam. The fixed installation of the prefabricated segmental beam is not limited by high piers and complex geological conditions, and the fixed installation of theprefabricated segmental beam can be used in a large range.

The invention discloses an EEPROM programming precision correction circuit and method. The EEPROM programming precision correction circuit comprises a single polycrystalline EEPROM sub-circuit, a reset sub-circuit, an operation instruction control sub-circuit, a signal input sub-circuit and a charge pump. The reset sub-circuit is used for detecting whether the EEPROM is in a chip test mode or not;in the test mode, the reset signal of the reset sub-circuit is effective; the reset sub-circuit generates a reset signal to the single polycrystalline EEPROM sub-circuit, the operation instruction control sub-circuit, the signal input sub-circuit and the charge pump, and the single polycrystalline EEPROM sub-circuit, the operation instruction control sub-circuit, the signal input sub-circuit andthe charge pump enter an initialization state and do not act; and if no reset signal comes, when the test enable signal is at a high level, an operation control instruction is generated by inputting different numbers of square waves to the CS chip selection end of the operation instruction control sub-circuit. According to the invention, the EEPROM memory is tested, adjusted and repaired through the combination of pin multiplexing and single polycrystalline EEPROM, the cost is low, and the reference source voltage can be flexibly and accurately adjusted at the same time.

An image processing method and a user terminal, wherein the image processing method includes: when receiving an activation command for the camera of the user terminal, displaying a preview image in the shooting area of ​​the camera; if the preview image contains a human face element, obtaining The environmental parameters of the preview image, the environmental parameters include: sensitivity ISO value and / or brightness contrast value; set image processing coefficients for the preview image according to the environmental parameters; use the image processing coefficients to process the preview The image is processed. The technical solutions of the embodiments of the present invention are beneficial to improving the flexibility of image processing.