40results about How to "Implement input" patented technology

The embodiment of the invention provides a cascade heating superheated steam generation system and a control method thereof, and belongs to the technical field of energy engineering and thermal power. The system comprises: an evaporation device provided with a plurality of heat exchangers, wherein the evaporation device is used for treating preheated produced water into wet saturated steam; wherein the series-parallel connection relation between the heat exchangers in the evaporation device is adjusted based on real-time heat supply demand information; the steam conversion device is used for converting the wet saturated steam into superheated steam for steam injection; the control device is used for determining the serial numbers of the heat exchangers participating in heat exchange and the series-parallel connection relation of the heat exchangers participating in heat exchange based on the real-time heat supply demand information; the fused salt conveying device sequentially passes through the steam conversion device and the evaporation device and is used for providing a heat source for the steam conversion device and the evaporation device. According to the scheme, the method adapts to complex heat supply demand scenes, and therefore an efficient, flexible and intelligent solution is provided for thick oil steam injection.

The invention belongs to the technical field of extraction equipment, and discloses a medicine-homologous food raw material extraction device which comprises a treatment barrel, a mounting column is fixedly arranged in the treatment barrel, an assembly cavity is formed in the mounting column, and a piston part is movably connected into the assembly cavity in a sleeving mode. The raw material powder floating on the liquid level of the treating agent is sucked, the raw material powder and the treating agent are sucked together and then subjected to spraying treatment, mixing disturbance of the raw material powder is achieved by means of top suction and internal spraying, the mixing uniformity of the raw material powder is improved, and then the separation and extraction efficiency of target components is improved; and through cooperative control of the float bowl, when the top raw material powder is gradually sucked, synchronous reduction is maintained along with reduction of the liquid level of the treating agent, and suction treatment of the top raw material powder is completed at any time, so that the suction effect is greatly improved, it is guaranteed that the total amount of the sprayed raw material powder is sufficient, sufficient spraying and mixing are completed, and the actual extraction efficiency is greatly improved.

The invention discloses a spray type glue dispensing gun and a rebound type glue dispensing gun, and relates to the technical field of plastic dripping. According to the spray type glue dispensing gun, gas and liquid raw materials are injected into the jet flow shell A at the same time, when the spray type glue dispensing gun is used, the piston rod A circularly pushes the raw materials in an inner cavity of the jet flow shell A to be sprayed out in an atomized mode under the action of the gas, so that a larger area can be covered by spraying out each time, and the plastic dripping efficiency is higher when large-area plastic dripping operation is carried out; according to the springback type glue dispensing gun, the piston rod C is far away from the sealing ring through pushing of raw materials, so that an inner cavity of the second shell B communicates with an inner cavity of the first shell B, and output of the raw materials is achieved; and the piston rod C automatically rebounds and abuts against the sealing ring through the elastic effect, so that the inner cavity of the second shell B and the inner cavity of the first shell B are disconnected, automatic closing is achieved, the piston rod C does not need to be pushed by an air source to move, and more cost is saved.

The present invention belongs to the field of communication, and discloses a two-way wireless audio transmission device, comprising a main unit and a sub-unit, wherein the main unit comprises a first wireless component, a first audio output component, a first amplifying input component and a first digital signal processing component; the sub-unit comprises a second wireless component, a second audio output component, a second digital signal processing component and an analog-to-digital conversion input and output component; the analog-to-digital conversion input and output component receives a second original analog audio signal and a first original digital audio signal, the first amplifying input component inputs the first original analog audio signal, the analog-to-digital conversion input and output component outputs a third target audio signal to a first live broadcast platform, and the second audio output component outputs a second target audio signal, thereby realizing the input of three channels of original audio signals, and while inputting background music, the voice information of two hosts can be accessed, thereby increasing the number of original audio signal input channels, and realizing network live broadcasting by multiple hosts.

The invention relates to the technical field of machine tools, in particular to a numerical control carving machine which solves the problems that in the machining process of small-size products through an existing carving machine, manual feeding and discharging are needed, safety risks exist, the production efficiency is low, and cleanliness of the machine tool is inconvenient to keep. A numerical control carving machine comprises a slag removal protection mechanism, a rotary material conveying mechanism and a washing mechanism, a five-axis machining tool is installed on the inner side of the slag removal protection mechanism, the washing mechanism is installed on one side of the five-axis machining tool, the rotary material conveying mechanism is installed on one side of the slag removal protection mechanism, and the slag removal protection mechanism comprises a supporting base. A protective cover is fixedly installed on the upper end face of the supporting base, and a first transmission motor is fixedly installed on one side of the supporting base. By automatically feeding, discharging and conveying products, the production efficiency can be effectively improved, the safety risk caused by manual operation is avoided, the machine tool can be conveniently washed, and the whole machine tool is clean.

The utility model provides a CLC filter circuit structure and an energy storage power supply, comprising a first filter capacitor, a second filter capacitor and a conjugate filter inductor, the conjugate filter inductor comprises a first filter inductor coil and a second filter inductor coil which are conjugated, the input power supply positive electrode copper foil, the input power supply negative electrode copper foil, the output power supply positive electrode copper foil and the output power supply negative electrode copper foil are arranged on the PCB, the input power supply positive electrode copper foil is connected with one end of the first filter inductance coil, and the input power supply negative electrode copper foil is connected with one end of the second filter inductance coil. The output power supply anode copper foil is connected with the other end of the first filter inductance coil, the output power supply cathode copper foil is connected with the other end of the second filter inductance coil, and one end of the first filter capacitor is connected with the input power supply anode copper foil. According to the utility model, the power supply filtering effect is improved.

The invention discloses acid leaching production equipment for quartz sand processing treatment, and relates to the technical field of quartz sand processing. A first closed ring body is arranged on one side of a transposition control frame, first through-flow openings are symmetrically formed in one side of the first closed ring body, a first feeding opening is formed in the top of the first closed ring body, a plurality of groups of cavity dividing insertion openings are formed in the inner wall of an annular immersion cleaning material turning bin, and a plurality of second feeding openings are formed in the outer wall of the annular immersion cleaning material turning bin. And each group of sub-cavity insertion openings corresponds to one second feeding opening, a plurality of second through-flow openings are formed in one side of the annular immersion cleaning material overturning bin, and the through-flow net plates are arranged in the corresponding sub-cavity insertion openings in a sliding fit mode. In the rotating process of the annular immersion cleaning material overturning bin, quartz sand particles in each sand particle overturning cavity continuously roll over, and meanwhile, an acid solution in each liquid passing cavity circularly flows in the inner cavity of the whole annular immersion cleaning material overturning bin to penetrate through a flow passing net plate, so that the quartz sand particles and the acid solution can be fully mixed.

The present invention relates to the field of acoustic wave communication technology, and discloses a surface acoustic wave filter, including a piezoelectric substrate, a first metal connection layer, a first passivation layer, and a second metal connection layer. A plurality of resonators are arranged at the active end of the piezoelectric substrate, and the series resonators and the parallel resonators are sequentially connected through the first metal connection layer. The first passivation layer wraps the resonators and the first metal connection layer to isolate moisture and improve performance reliability. A connection window is etched in the first passivation layer, and a ball is arranged in the connection window to contact the first metal connection layer, and the other end of the ball is in contact with a peripheral circuit (such as a ceramic or resin carrier) to realize input and output signals; the second metal connection layer is connected to the first metal connection layer through an open window on the first passivation layer, which can improve the connection freedom of the resonator, reduce the size of the surface acoustic wave filter, increase the heat dissipation efficiency, and improve the input power that the surface acoustic wave filter can withstand.

This invention discloses a weak force sensor based on a teardrop-shaped micro / nano optical fiber and its fabrication method. The sensor comprises a biconical micro / nano optical fiber, a single-conical optical fiber, a quartz capillary tube, and a PDMS microsphere. The biconical micro / nano optical fiber is symmetrically bent, with the central waist region fiber forming a teardrop-shaped ring. The two ends of the teardrop-shaped micro / nano optical fiber ring are sequentially connected to portions of the waist region fiber, a transition region fiber, and a standard fiber. This invention utilizes the sensitive self-sensing capability of micro / nano optical fibers to achieve integrated signal input and output, greatly simplifying the measurement feedback mechanism of the sensing system and reducing overall cost. Furthermore, it is simple and intuitive to operate, reducing the technical requirements for operators. In terms of sensor fabrication, the main raw materials are standard optical fiber and quartz capillary tube, both of which are extremely low-cost. Therefore, this micro / nano optical fiber sensor exhibits significant cost-effectiveness.

The invention provides precision casting equipment for an automobile engine cylinder block, and relates to engine cylinder blocks, the precision casting equipment comprises an upper casting mold and a lower casting mold, the top of the upper casting mold is provided with a pouring end, and a pouring element is fixed to the outer end of the pouring end; the irrigation element comprises an irrigation groove. Through the arranged non-return element, when casting is not needed, the overflow channel on the sliding seat can be arranged in the plugging cavity under the action of the spring, so that the overflow channel is in a plugging state, meanwhile, when casting is conducted, the spring is compressed through downward pressing of the pouring end, and the overflow channel is blocked. The overflow channel on the blocking block is driven to slide into the overflow cavity to be opened, so that material input is achieved, in the input process, the spiral conveying groove is matched, concentrated materials can be dispersed all around, impact force generated during input is reduced, and the conveying efficiency of the materials is improved. And the influence on the actual application precision caused by concentrated long-time impact on a certain part in the mold is avoided.

The invention belongs to the technical field of low-temperature evaporators, and discloses a low-temperature evaporator which comprises an assembly box, an evaporation barrel, a cyclic heating assembly, a condensation box and a ventilation pipe, a fixed extrusion part is fixedly connected into the condensation box in a sleeved mode, and a condensation assembly located in the fixed extrusion part is fixedly arranged in the condensation box. After condensation of hot steam is achieved through cooperation with the condensation assembly, condensation water is intensively absorbed and stored through the rotary filtering part, extrusion is generated through the rotary action and an extrusion strip in the fixed extrusion part, and the absorbed and stored condensation water is downwards extruded through the extrusion effect on a sponge ring; according to the device and the method, the solute is filtered and retained in the sponge ring, purified condensate water is obtained through separation, actually, for a low-temperature evaporator, after steam is generated and the condensate water is obtained, treatment of the solute in the condensate water is rapidly achieved, the actual solute separation efficiency is high, the actual solute separation effect is good, liquid water obtained through separation is high in purity and cleanliness, and the evaporation separation effect is good.

The utility model provides a novel liquid cooling data acquisition system, including main module and a plurality of cascade module. The main module includes signal input module, signal processing module and output module. The utility model discloses a input interface and intelligent interface unit, can realize the access of a variety of types sensor data, make more channel number of unit volume, save the installation space of power distribution cabinet, single module can support 4-20mA's input and output simultaneously, can also provide 21VDC and 5VDC's external power supply through voltage output unit, not only make the power supply of sensor more flexible, can also power supply for cascade module, expand more acquisition channel, in addition, still can through the communication control 21V output voltage's delay power -on time, provide more possibility and flexibility for the power -on time sequence control of liquid cooling system.

The invention relates to the technical field of friction stir welding, in particular to a laser-assisted friction stir additive welding tool which comprises a mounting plate, a lower support is fixedly connected to the bottom of the mounting plate, a rotating sleeve is movably mounted in the mounting plate and the lower support, and a stirring head is fixedly connected to the bottom of the rotating sleeve. A first driving assembly is mounted in the lower support, a laser head is fixedly mounted in the lower support, a mounting cover is mounted in the lower support, a saw blade is movably mounted in the mounting cover, and a second driving assembly is mounted between the first driving assembly and the mounting cover. A raw material rod is movably mounted in the rotating sleeve and the stirring head, the raw material rod penetrates through the rotating sleeve and the stirring head, and an upper support is fixedly connected to the top of the mounting plate. According to the device, when friction stir additive manufacturing is achieved, synchronous precise grooving, laser assistance and automatic and stable material injection are achieved, and the quality and efficiency of additive manufacturing are improved.

The invention belongs to the technical field of circulating water energy-saving optimization, and discloses a device for realizing circulating water energy-saving optimization based on a data technology, the device comprises a filter box, the top of the filter box is provided with a water inlet, the right side of the interior of the filter box is provided with a clamping groove, and the interior of the clamping groove is slidably connected with a clamping block; through the arrangement of the filtering device, the connecting plate, a fixing frame, a positioning rod and a supporting spring, waste water enters the filtering box through a feeding port, the filtering device can preliminarily filter the waste water, impurities are blocked on the surface of the filtering device, and the waste water can be filtered more conveniently. And then a positioning rod is pulled, so that the positioning rod drives a supporting spring to move, the positioning rod is separated from a connecting plate, then the connecting plate is pulled, the connecting plate and the purifying box can be separated, and therefore the filtering device can be conveniently cleaned or replaced.

The invention discloses a voice recognition system of an intelligent mouse, and belongs to the technical field of data processing, voice data input by a user is collected through a voice collection sensor arranged in the intelligent mouse, then a voice spectrogram corresponding to the voice data is recognized through a CNN-CTC algorithm, and a voice recognition result is obtained; and finally, the specified document template is filled with the voice recognition result, so that mouse character data input can be realized, the functionality of the mouse is enhanced, the number of peripherals carried by a user is reduced, and the use convenience is enhanced.

The utility model discloses flow stabilizing equipment for microbial fermentation, which belongs to the technical field of microbial fermentation and comprises a fermentation barrel which is respectively connected with a gas input pipe and a liquid input pipe through a three-way pipe to realize respective input of gas and liquid. When the gas is conveyed, the blocking ball automatically resets under the action of the spring to block the blocking ring, and liquid is input in the same way, so that cross contamination can be avoided; the adjusting plate is driven by the electric push rod to move in the adjusting frame, so that the flow area of the joint of the three-way pipe and the fermentation barrel is changed, the flow speed of gas or liquid is adjusted, the hydrodynamic stability of fermentation liquid is maintained, and fermentation requirements of different stages are met.

The present application discloses an input correction method and device, belonging to the field of communication technology. The method comprises: receiving a second string input by a user when a first string has been input in the current input method interface; marking at least one string to be corrected in the first string that is associated with the second string if a third string input by a user is received when the first string includes the second string; and replacing the target string to be corrected in the at least one string to be corrected with the third string.

The application aims to provide a thin mechanical torsion spring magnetic induction key structure with good sound feedback, adjustable input instruction touch process and thin overall thickness. The key cap, magnet, scissors foot, elastic element, base, Hall IC and circuit board are provided with a boss matched with the elastic element on the bottom surface of the key cap. The elastic element is a double-winding torsion spring. The double-winding torsion spring is arranged on the base and the first force arm is attached to the bottom surface of the key cap. The second force arm of the double-winding torsion spring is located below the boss. The lower end of the boss is provided with an inclined surface matched with the second force arm. When the key cap is pressed downward, the scissors foot is pressed together, the first force arm is attached to the key cap and deformed under force, the second force arm moves along the inclined surface during the downward movement of the boss, the key cap is moved downward to a set height, the second force arm moves upward to pop up and is separated from the restriction of the boss, the scissors foot or the key cap is knocked, and the Hall IC detects the magnetic force of the magnet to trigger the input instruction. The application can be applied to the technical field of keys.

The application relates to a tunnel base concrete heat dissipation system and a design method of heat dissipation fins, relates to the tunnel pouring heat dissipation technical field, and aims to solve the problem that the existing heat dissipation structure cannot meet the heat dissipation requirement of the tunnel base concrete after pouring. The tunnel base concrete heat dissipation system is used for heat dissipation of the tunnel base concrete after pouring, and comprises a supply device and a plurality of heat dissipation devices. The plurality of heat dissipation devices extend along the length direction of the tunnel base, and the plurality of heat dissipation devices are arranged at intervals along the width direction of the tunnel base. The plurality of heat dissipation devices each comprise a main pipeline and a plurality of heat dissipation fins. One end of the main pipeline is connected with the output end of the supply device, and the other end is connected with the return flow end of the supply device. The plurality of heat dissipation fins are arranged at intervals along the axial direction of the main pipeline, and the diameters of the heat dissipation fins arranged on the main pipeline gradually increase first and then gradually decrease from one end to the other end of the main pipeline.

The utility model belongs to the technical field of silicon wafer drying, and particularly relates to a drying tank body, which comprises a hollow tank body, a main inlet, a main outlet and a plurality of grooves, a plurality of drying assemblies, each drying assembly is provided with a drying inlet and a plurality of drying outlets facing the same direction, the drying inlets are communicated with the main inlet, and the drying outlets are evenly distributed in the drying assemblies; the support bodies are arranged in pairs, and each pair of support bodies is arranged at the top of the corresponding drying assembly; in short, the main inlet and the main outlet are formed in the tank body, so that input of hot air and exhaust of waste gas and water vapor can be achieved; furthermore, through a drying assembly placed at the bottom of the flower basket, each group of flower baskets can be uniformly dried.

This utility model discloses a layered rack for air-drying fresh camellia fruit, including a drying box with four sets of inspection doors. The drying box has two mounting racks and partitions inside. It also includes a drying mechanism located on the outer walls of the mounting racks. The drying mechanism comprises four mounting boxes, each with a bellows on one outer wall. The bellows has two air inlets and one air outlet near the ends and center of each box, respectively. A fan is installed inside the air outlet, and a filter is installed inside the air inlets. Buffer chambers are located inside the mounting boxes, on one side of each air inlet and outlet chamber. This layered rack for air-drying fresh camellia fruit improves drying efficiency, ensures drying quality according to production needs, reduces floor space, and lowers labor intensity.

The utility model discloses a radio frequency self -checking device for FDD microwave communication system, including coupling circuit, frequency conversion circuit, frequency source circuit and controller, the coupling circuit is equipped with a two -way radio frequency port for with the two -way connection of external duplexer's tuning terminal, the through output port of coupling circuit is connected with the radio frequency input port of frequency conversion circuit, the intermediate frequency output port of frequency conversion circuit is connected with the coupling input port of coupling circuit, the local oscillator port of frequency conversion circuit is connected with the output port of frequency source circuit, it belongs to communication field, through this self -checking device, the signal of transmitting channel in system is frequency conversion to the signal of receiving channel, and sends back receiving channel and carries out the signal processing effect.

This utility model relates to a gas-driven, non-destructive, rapid disassembly device for RV reducer oil seals. Its features include: an upper sealing unit comprising an upper cover plate, an upper sealing rubber gasket, and a sealing ring; a lower sealing unit comprising a lower base and a lower sealing rubber gasket; an air inlet passage at the upper end of the vent screw; a sealing contact between the lower end of the sealing ring and the upper end of the RV reducer housing; the upper cover plate is press-fitted onto the upper end of the sealing ring, with the screw through-hole on the upper cover plate aligned with the center hole of the RV reducer; the upper sealing rubber gasket is coaxially positioned on the upper end of the upper cover plate; the lower sealing rubber gasket is positioned at the upper end of the lower base with center alignment, and makes sealing contact with the lower end of the RV reducer housing; the vent screw passes through the screw through-holes of the upper sealing rubber gasket, the upper cover plate, the center hole of the RV reducer, and the lower sealing rubber gasket from top to bottom, and connects to the threaded hole on the lower base. This device enables non-destructive, rapid disassembly of the oil seal through venting.

The utility model discloses a raw material processing device for aluminum alloy production relates to aluminum alloy production technical field, including smelting furnace, the top of smelting furnace is connected with top cover, and the top cover is connected with stirring mechanism between smelting furnace, and stirring mechanism includes rotary rod and stirring vane. The utility model discloses rotary plate side edge is connected with the fender, to prevent the raw material overflow, and the top of feeding box is connected with rotary plate, and the board is equipped with pressure sensor, is used for monitoring the feeding pressure of raw material, when adding to certain weight, and the rotary plate is connected through the rotating mechanism between feeding box, and is driven rotation by rotary motor, and the gear ring is engaged in the outer periphery of gear, and is connected on the rotary plate through the rotary frame, and the gear ring drives the rotary frame rotation, imports the raw material on the rotary plate into feeding box, and the raw material is guided to realize raw material input through the guide plate, and rotary motor drives the rotary plate rotation, and raw material is conveyed from the rotary plate to feeding box through the rotating mechanism, realizes the automation of feeding process, and improves production efficiency.

This invention relates to the field of explosion-proof fan testing, and more particularly to a multi-environment testing device for explosion-proof fan performance. The device includes a first mounting pipe, a hinged frame, and a vibration sensing mechanism. The vibration sensing mechanism is mounted on the first mounting pipe and the hinged frame. The vibration sensing mechanism includes two storage boxes and a mounting base. The two storage boxes are connected and positioned above the first mounting pipe and below the hinged frame. An array of mounting bases is fixedly installed in the storage boxes below the hinged frame. The sensing mechanism is located in the storage box above the first mounting pipe. One end of the first mounting pipe is connected to a multi-environment switching mechanism. This design enables convenient installation of the explosion-proof fan and allows it to accurately interface with the multi-environment switching mechanism and the wind speed testing mechanism. Simultaneously, the array of sensing elements is directly attached to the outer wall of the explosion-proof fan under test, adapting to different vibration amplitudes of the explosion-proof fan and avoiding the common problem of conventionally attached sensing elements easily falling off.

The utility model discloses a culture storage tank for nucleic acid, relates to the technical field of nucleic acid culture, and solves the technical problems that a stable culture environment cannot be provided and a nucleic acid sample cannot be conveniently taken and placed in an existing technical scheme. A fixed column is fixedly installed in the culture tank, a culture frame is rotatably installed on the fixed column, and a tank door is rotatably installed on the side wall face of the culture tank. An accurate and stable temperature control environment is provided for culture and storage of nucleic acid samples; a clean and sterile experimental environment can be created in the culture tank, so that the influence of external pollution on a nucleic acid sample is avoided; the culture frame can be driven by the adjusting motor on the stand column, rotation and adjustment of the culture frame are achieved, and the samples are more convenient to place and take.

The invention belongs to the technical field of hydraulic oil cylinders, and discloses a high-sealing bidirectional buffering hydraulic oil cylinder which comprises a cylinder body, a cylinder cover, a first oil hole and a second oil hole, the cylinder cover and the cylinder body are fixedly installed through bolts, and piston rods are movably connected into the cylinder body and the cylinder cover in a sleeved mode. Compression and elastic recovery are conducted on the compression assembly, internal hot air is extruded and discharged out of the hydraulic oil cylinder through the heat dissipation air channel during compression of the compression assembly, elastic recovery is conducted again during reverse movement, and air in the environment is sucked in; according to the hydraulic oil cylinder, the piston rod is used for absorbing heat in the cylinder body, comprehensive heat dissipation under the conduction and convection effects is achieved, on the basis that no extra power equipment is additionally arranged, effective internal heat dissipation is completed through the action of the hydraulic oil cylinder, and the adverse effect caused by too high temperature is reduced; and an unpowered automatic efficient heat dissipation effect is achieved.

The utility model relates to the technical field of white spirit brewing equipment, in particular to a mixing mechanism which comprises a stand column assembly, a main rotary support, a mixing bin body, a hopper, a hopper bracket and a locking mechanism. The main rotary bracket performs turnover motion on the upright post assembly; the mixing bin main body horizontally rotates on the main rotary bracket, and a first opening is formed in the lower part of the mixing bin main body; the hopper is provided with a second opening which is in butt joint with the first opening of the mixing bin main body; the hopper is butted with the mixing bin main body to form a sealed container; the hopper bracket is used for supporting the hopper; and the locking mechanism is used for locking the hopper bracket and the main rotary bracket. According to the mixing mechanism disclosed by the utility model, the mixing bin main body is horizontally and rotatably arranged on the main rotary bracket, and meanwhile, the main rotary bracket is arranged on the upright post assembly in an overturning manner, so that the mixing process can be started as long as the hopper is in butt joint with the mixing bin main body and the hopper bracket is locked with the main rotary bracket, and the butt joint process is rapid and high in efficiency.

A driving mechanism includes a driving part and a transmission part; the driving part includes a motor and a planetary reducer, and the motor shaft of the motor is fixedly connected to the sun gear of the planetary reducer; the transmission part includes an input shaft, an output shaft and a steel wire rope wound on the input shaft and the output shaft, the steel wire rope is in a tensioned state, and the input shaft is fixedly connected to the planetary carrier of the planetary reducer. In the above-mentioned driving mechanism, the driving part uses the motor and the planetary reducer together to form a near direct drive mode, and the driving part is fixedly connected to the sun gear of the planetary reducer through the motor shaft of the motor, and the planetary carrier of the planetary reducer is fixedly connected to the input shaft, so as to realize the output of the motor driving force. This method can realize the high torque density and high reverse driving ability of the driving mechanism, and the control accuracy is higher. The transmission part adopts steel wire rope for transmission, has no forward and reverse transmission gap error, is light in weight and low inertia, can increase the leg swing frequency, increase the walking speed, and have higher control accuracy.

This invention provides a key processing method, apparatus, and medium, wherein the key attribute items specifically include: character-type key attribute items; the character-type key attribute items correspond to the virtual key codes of the keys, including: a mapped character sub-attribute, representing the mapped character corresponding to the key; and a pre-operation sub-attribute; wherein the pre-operation corresponding to the pre-operation sub-attribute and the virtual key code of the key are used to jointly determine the mapped character corresponding to the key. This invention can reduce product cycle time and development costs, and can achieve multilingual input without switching language modes.