79results about How to "Solve usage needs" patented technology

The invention discloses a capacitive touch key chip detection and calibration system and method. The system comprises an insertion detection and calibration module, a communication control and register configuration module, a data storage module, a key processing module, a comparison analysis module, an error processing module, a power control module and a terminal control module. The detection system and method can perform sensitivity performance measurement and clock calibration to a number of touch key chips, and achieve functions of chip insertion detection, graphical performance display of the terminal in the double-layer mode, comparative analysis, multi-voltage output control, real-time data recording and storage by control software, and system error handling and other functions.

The invention discloses a method for establishing a contact group in a mobile terminal and the mobile terminal. The method includes the steps that the mobile terminal receives condition attribute information of establishing a first contact group through a man-machine interface; the mobile terminal generates a first group model according to the condition attribute information; the mobile terminal matches attribute information of contacts stored in the mobile terminal according to the first group model to generate a first contact group. Due to the application of the method for establishing the contact group in the mobile terminal and the mobile terminal, the problem that in relative technologies, the only group can not meet requirements of users on different contacts as the establishing conditions of contact groups are single can be solved; and further users can establish contact groups in user-defined mode, multi-dimensionality of contact groups is realized, and improve systematical performance and user experience are improved.

The invention provides a method for remotely manipulating a PC based on a virtual input device. The method comprises the following steps: after a mobile terminal device remotely logs on a PC terminal,a virtual input device is started in the mobile terminal device; After selecting an initialization input interface or a user-defined input interface in the virtual input device, a key in the input interface is clicked, and a virtual key code corresponding to the key is called according to the input request to complete the corresponding manipulation. A system for implementing the method includes amobile terminal device and a virtual input device. After the mobile terminal device remotely logs on the PC terminal, the virtual input device is started in the mobile terminal device. After selecting an initialization input interface or a user-defined input interface in the virtual input device, pressing a key in the input interface and calling a virtual key code corresponding to the key according to an input request to complete corresponding manipulation. The invention enables a user to remotely access a PC desktop through a mobile terminal device and perform related manipulation, and the user does not need to purchase a peripheral device.

The invention discloses an intelligent household security theft prevention alarming communication system, which comprises a central control end and a wireless communication module, and also comprises a user mobile phone end, a cell security guard end, an alarm receiving center end, a smoke detection system, a fuel gas detection system and an access control system, wherein the user mobile phone end, the cell security guard end, the alarm receiving center end, the smoke detection system, the fuel gas detection system and the access control system are all in signal connection with the central control end via the wireless communication module; the access control system comprises an access controller, a door access, a storage database for storing user information, an electrical controller, an infrared camera and an identity recognition system; the access controller is connected with an electronic door lock via the door access; and the access controller is also in wireless communication connection with the identity recognition system, the storage database, the electrical controller and the infrared camera. The intelligent household security theft prevention alarming communication system has the advantages that the structure is simple; the control is convenient; the reliability is high; various identity recognition modes are provided; the household safety performance is greatly improved; and power consumption can be effectively saved.

The invention relates to the technical field of intelligent parking, in particular to a voice reservation parking space system; the voice reservation parking space system comprises a user client, a parking lot client, a central processing unit, a parking lot management unit and a data storage unit, wherein the user client, the parking lot client, the parking lot management unit and the data storage unit are all connected with the central processing unit; the system has the advantages that the commands of the user are recognized through voice, the two hands of the user are liberated, and the safety is higher; the reserved parking space is prevented from being occupied, unnecessary troubles and contradiction are avoided, the special parking space is prevented from being occupied, and the system is more user-friendly; the problem that a part of the parking lot is poor in signal or the corresponding parking lot is difficult to find is solved, the user can stop more conveniently, and the parking time is saved; the user can select to become a paid member or a non-paid member, so that the use requirements of different users are met; and when the user is in use, the parking lot and the parking space meeting the user habit are recommended, so that the user time is shortened.

The invention discloses a performance test system of a power supply filter in a simulated actual working state. The performance test system relates to the technical field of testing, electromagnetic compatibility and electromagnetic protection. The performance test system can realize state simulation of various application environments, so that performance testing and practical application are perfectly combined; and the performance test system can truly obtain a plurality of important indexes such as a suppression frequency range, insertion loss, shielding effectiveness, actual power and stability of the power supply filter in an actual working state through determining performance tests under a power-on loading condition, avoids the influences of a signal source radiation coupling effect, a cable conduction coupling effect, an inductance magnetic saturation effect, a temperature effect and the like on the performance tests in conventional testing, effectively solves meets the use requirements of various electromagnetic shielding bodies on the power supply filter, has the advantages of scientific design, convenient operation and high reliability, and is suitable for large-scale popularization and application.

The invention relates to a high-frequency dynamic load rock breaking tool and a using method thereof. High-pressure drilling fluid pushes an impact rotary hammer to move to store kinetic energy, a part of the high-pressure drilling fluid is utilized for being combined with a frequency control module to control steering of a control valve, alternating distribution of the high-pressure drilling fluid on both sides of the impact hammer is achieved, pressure potential energy of the drilling fluid is ingeniously converted into torsional, high-frequency, uniform and stable mechanical impact energy and directly transmitted to a PDC drill bit, so that the torque of a whole drill string remains stable and balanced, the drill bit continuously and stably breaks rock, the drilling quality is improved,and the drilling cost is reduced.

The invention provides a method for intelligently managing and controlling indicator lamps of subscriber terminal equipment and relates to access terminal equipment for users. The access terminal equipment is provided with a timing switch mode and a manual control mode. The method includes steps of S1, monitoring by a system of the subscriber terminal equipment, judging whether to configure an indicator-lamp timing-switching function or not, namely the timing switching mode, if yes, entering a step S2, and if not, entering a step S3; S2, reading current time by the system, comparing the current time and the preset time, controlling states of the indicator lamps according to time periods, finishing polling of this time, and returning to the step S1; S3, detecting whether user key events happen or not by the system, namely the manual control mode, if yes, entering a step S4, and if not, returning the step S1; S4, switching the current states of the indicator lamps by the system, finishing polling of this round, and returning to the step S1. By the method, the indicator lamps can be turned off under the condition that the indicator lamps are not used for indication, and normal operation of the equipment is unaffected.

The invention discloses a resistance wire liquid heater for heat management of new energy automobiles. The inner portion of a heater shell is divided into a control chamber and a heat exchange chamber. A low-voltage inserting piece in the control chamber is connected with a driver assembly; a high-voltage inserting piece is connected with a first IGBT switch and a second IGBT switch, and the firstIGBT switch and the second IGBT switch are connected with the driver assembly. A high-voltage resistance wire heating pipe and a low-voltage resistance wire heating pipe are arranged in the heat exchange chamber, wherein the high-voltage resistance wire heating pipe and the low-voltage resistance wire heating pipe are connected with the driver assembly. Under a first working condition, a voltagesensor controls the working voltage to be transmitted to the high-voltage resistance wire heating pipe through the first IGBT switch and the driver assembly, and the high-voltage resistance wire heating pipe starts heating. Under a second working condition, the voltage sensor controls the working voltage to be transmitted to the low-voltage resistance wire heating pipe through the second IGBT switch and the driver assembly, and the low-voltage resistance wire heating pipe starts heating to meet the heating demand of the power battery at low voltage, and the high-voltage demand under normal full power condition so as to achieve the best intelligent utilization ratio.

The invention discloses a profiled steel sheet-ultrahigh toughness concrete combined bridge deck which comprises profiled steel sheets, round steel bars and ultrahigh toughness concrete. Round holes are formed in a rib web of each profiled steel sheet at equal intervals, and the round steel bars transversely penetrate through the round holes to form a bridge deck steel framework. The ultrahigh toughness concrete is poured on the bridge deck steel framework to play a role in protecting the bridge deck steel framework. According to the invention, the corrugated shape and the mechanical property of the profiled steel sheet enable the profiled steel sheet not to be additionally welded with longitudinal and transverse stiffening ribs, so that the fatigue performance of the structure is greatly improved while the construction complexity is reduced; and the transverse bending capacity of the combined bridge deck is improved through the round steel bars, the stress mode is changed from one-way stress to two-way stress, and meanwhile the round steel bars and the inter-hole steel plates jointly achieve the shear force connection and pulling resistance effects. The ultrahigh toughness concrete can ensure that no or only small cracks of 100 microns or below are generated, the use requirement of a reinforcing mesh is effectively avoided, the use amount is small, and the toughness and durability of the structure are improved.

The invention relates to the technical field of exhaust pollutant post-treatment of gasoline vehicles, and particularly relates to a method for preparing a low-pressure drop and low-expansion coefficient cordierite gasoline vehicle exhaust particle catcher by using fumed silica. The method comprises the following steps: (1) mixing inorganic raw materials by a dry method, and adding a binder; (2) kneading; (3) practicing; (4) extruding, microwaving and drying; (5) cutting and sintering; (6) punching holes, blocking the holes and then putting the holes into a kiln for back burning. The fumed silica material is adopted as the raw material catcher, the pore-forming effect is remarkable, and the micro-pore connectivity is good, so that the pressure drop and the thermal expansion coefficient ofthe catcher can be reduced; meanwhile, the fumed silica can replace common silica, thereby not only achieving the function of serving as an inorganic component, but also achieving the pore-forming effect and reducing the adding amount of the organic pore-forming agent; the use of the fumed silica not only can meet the use requirements, but also reduces the production cost and improves the production efficiency.

The present invention provides an indoor device control method and an intelligent terminal, and relates to the control technology field. The intelligent conference room needs to manually control the switch combination to control an illumination device and an air conditioning device in the prior art so as to realize the user's usage requirement. The method comprises: collecting temperature signals of a human temperature sensor in a first preset area indoors, and when it is analyzed that there is no human heat source, switching to a first mode; and in the first mode, closing the illumination device and the air conditioning device. The indoor device control method and the intelligent terminal are configured for the manufacturing of the intelligent terminal.

The invention provides a multi-frequency antenna device and a mobile terminal, and relates to the technical field of communication. The multi-frequency antenna device comprises a first antenna radiation part, a second antenna radiation part and an antenna slot; a first grounding point and a second grounding point are respectively arranged at one ends, far away from the antenna slot, of the first antenna radiation part and the second antenna radiation part; and a first antenna switch and a filter network are connected between the first antenna radiation part and the antenna slot. The second antenna radiation part is connected with a feeding point, a second antenna switch is connected between the feeding point and the second grounding point, and the feed point is provided with a feed circuit matching unit. The switching between an LTE low-frequency resonant mode and an LTE intermediate-frequency resonant mode is realized through the switching of the second antenna switch, the switching between an LTE high-frequency resonant mode and an LTE intermediate-frequency resonant mode is realized through the first antenna switch, and after the first antenna switch is switched to the LTE high-frequency resonant mode, and a WIFI 5G / Sub6G resonant mode is realized through the filter network and the feed circuit matching unit, so that the problem that a multi-band multi-mode antenna is realized on the same antenna to meet the use requirements is solved.

The invention provides a warm keeping dinner plate. The base of a dinner plate is changed into a heating plate. The heating plate is round, and is provided with an insulated resistance wire tray. The concave round surface of the resistance wire tray is embedded with a heating resistance wire. The heating resistance wire is connected in series with an indicating lamp by a wire. The indicating lamp is connected in series with a pressing switch and a power plug. The middle of a warm keeping base is provided with a small hole, and the pressing switch is arranged in the small hole. The peripheral surface of the warm keeping base is provided with an insulating material, and a diabatic insulating pad is arranged on the warm keeping base. The warm keeping dinner plate is also provided with a temperature control switch which turns off a circuit at a certain temperature, so as to achieve warm keeping effect and prevent dishes from being burnt. The warm keeping dinner plate solves problems that an ordinary dinner plate is too fast in heat radiation, and dishes easily cool. The warm keeping dinner plate is relatively low in energy consumption, and is generally suitable to be used for eating in families, restaurants, and other public catering places.

The invention discloses continuous purification equipment for sewage treatment, which comprises a cylindrical shell, a filter cartridge part and a scraper self-adjusting cleaning mechanism, the filter cartridge part is arranged at the center of a cylindrical cavity of the cylindrical shell and is used for filtering and purifying solid waste in sewage, the scraper self-adjusting cleaning mechanism is movably sleeved on the filter cartridge part, and the scraper self-adjusting cleaning mechanism is used for cleaning the solid waste in the sewage. A reciprocating sliding structure is formed in a cylinder cavity of the cylindrical shell, and the scraping device is used for scraping and cleaning solid waste accumulated on a filter cylinder piece without affecting filtering and purifying treatment and scraping and pushing the solid waste to assist in centralized collection. According to the continuous purification equipment for sewage treatment, automatic scraping and cleaning operation is achieved, the blocking phenomenon caused by solid waste filtration and accumulation is avoided, the passing rate of follow-up sewage filtration and purification is guaranteed, in addition, concentrated collection of filtered solid waste is achieved, the use requirement of automatic cleaning operation is met, and the continuous purification equipment is worthy of popularization and application. And the service life of the filter cartridge piece is ensured.

The embodiment of the invention provides a working method of a piece of wireless access point equipment and the wireless access point equipment, and relates to the technical field of communication. The method and the equipment can reduce power consumption and prolong the service life of a battery when power is supplied by the battery. The method comprises the following steps: in a condition of data connection, establishing connection based on the lowest one of all compatible transmission rates, judging whether a current transmission rate is higher than or equal to the sum of a current actual throughput and a preset system parameter, improving the transmission rate if the current transmission rate is lower than the sum of the current actual throughput and the preset system parameter, and keeping the current transmission rate constant if the current transmission rate is higher than or equal to the sum of the current actual throughput and the preset system parameter.

The invention relates to a high-integration complete machine device for a microscope objective. The lower part of a calibrator shell of the device is in threaded connection with the top of a basic imaging objective main body, and a zero adjustment flexible guide ring is embedded in the calibrator shell; piezoelectric drivers are uniformly distributed between the zero adjustment flexible guide ringand a calibration lens; the calibration lens is the first lens at the top end of the microscope objective in a basic imaging objective main body and shares the same optical axis with a basic imagingobjective; a multi-degree-of-freedom flexible guide ring in an accurate adjustment device is arranged in a lens shell at the lower part of a basic imaging objective lens main body, and a radial driveris arranged between the multi-degree-of-freedom flexible guide ring and a core lens group; an axial driver is in threaded connection with a mirror shell, and the top end of the axial driver abuts against the lower end of the multi-degree-of-freedom flexible guide ring. The device is high in integration degree, fine adjustment compensation can be carried out in the assembling and adjusting integration stage, the optical characteristics of the basic imaging body are adjusted in place, accurate positioning can be achieved through assistance of the zero calibrator in the whole machine integrationstage, and the precision loss in the integration stage is reduced to the minimum.

The invention belongs to the technical field of shielded darkroom threading and particularly relates to a threading device of a shielded darkroom. The technical scheme adopted by the invention is as follows: multiple layers of movable partition plates with semicircular clamping grooves and fixed partition plate insertion slots are arranged in a rectangular box body, each shielding partition plate is divided into an upper block and a lower block, the middle of each shielding partition plate is provided with semicircular clamping grooves, and the partition plates are designed to be capable of being overlapped; electromagnetic leakage preventing filler is injected in the box body; a top cover of the box body is provided with a buckle edge structure, and a complete shielding body is formed by the top cover and the box body. According to the threading device of the shielded darkroom, the movable partition plates for clamping cables can be replaced according to the thickness of cables of test equipment, so that the convenience of cable mounting is guaranteed, and the shielding performance of the shielded darkroom is guaranteed; multiple layers of partition plates with the semicircular clamping grooves can be mounted in the box body according to signal characteristics, so that outside interference is prevented from being introduced into the darkroom from the cables; the device has the advantages that the test efficiency is increased effectively, the accuracy of a test is improved effectively, and the completeness of an equipment test status is guaranteed.

The invention relates to an umbilical cable protection socket with a transmitting channel maintenance and simulation training function. The socket comprises a box body, a cover plate, an external connector socket, an internal connector socket and a channel detector, wherein the box body is connected with the cover plate through hinges; mounting support lugs are arranged on the rear part of the box body, and are connected and fixed with the box body through screws; the internal connector socket is positioned on the inner side of the box body, and is arranged on the bottom surface; the channel detector is connected with the box body through the internal connector socket; the external connector socket is positioned on the front part of the box body, and is connected and fixed with the box body through screws. The socket has both an umbilical cable protection function and the transmitting channel maintenance and sending simulation training function, multiple using requirements are met by one piece of equipment, equipment types are reduced, and the internal space of a ship is saved.

The invention relates to a multi-purpose retracting and releasing acquisition device. The multi-purpose retracting and releasing acquisition device mainly comprises a flip frame, a bracket I, a bracket II, a pair of flip oil cylinders and a pair of hydraulic tilt cylinders. The bracket I is connected with an extension arm of the flip frame, the bracket I is hinged to one ends of the flip oil cylinders, and the flip frame is hinged to the other ends of the flip oil cylinders. The bracket I and the bracket II are connected by a connecting shaft I, the bracket II is fixedly connected with the hydraulic tilt cylinders, and the hydraulic tilt cylinders and the connecting shaft I have the same axis. The multi-purpose retracting and releasing acquisition device has the beneficial effects that themutual transformation between the two structures of a slideway supporting plate frame and a high-point lifting hanger can be realized, the multi-purpose use functions of sildeway towing belt retracting and releasing and high-point lifting hanging retracting and releasing of an unmanned submersible are achieved, the multi-purpose use requirement of an unmanned submersible retracting and releasingplatform is met, the application object and the use range are wide, and the multi-purpose retracting and releasing acquisition device is easy to implement.

The invention provides a toilet with adjustable height. The toilet incudes a toilet body, connected on upright posts in a manner of being capable of sliding vertically; the upright posts, wherein at least two upright posts are arranged on the same side of the toilet body in a parallel manner, and a lifting device driving the toilet body to slide vertically is arranged on the upright posts; a drainage pipe, arranged below the toilet body and communicating the inside of the toilet body; and a water tank, connected to the upright posts in a slidable manner, and fixedly arranged above the toilet body. By adding the device capable of driving the toilet to ascend and descend on the toilet, the height of the toilet from the floor can be adjusted to a proper position according to the height of a user when the toilet is used, thus the height of the toilet can be adjusted to be suitable for use by different people, and further improve the practicability of the toilet.

The invention discloses a fixation and rolling integrated machine for tea processing. The fixation and rolling integrated machine comprises a machine body of a cuboid box-shaped structure, wherein a feeding pipe is mounted on one side of the top end of the machine body; a fixation cylinder is arranged at the top end of an inner cavity of the machine body; the fixation cylinder is of a horizontal circular truncated cone structure; an opening in one end of the fixation cylinder is propped against the inner wall of the machine body; a material blocking mechanism is arranged at an opening in the other end of the fixation cylinder; a stirring and heating mechanism is mounted in the fixation cylinder; a sliding frame with a pulley (17) is arranged on one side of the bottom end of the inner cavity of the machine body; and an eccentric rotating mechanism for driving the sliding frame to move in a reciprocating manner is mounted on the other side of the bottom end of the inner cavity of the machine body. According to the fixation and rolling integrated machine for tea processing disclosed by the invention, through the cooperative rotation of three groups of motors, fixation and rolling of tea leaves are arranged to be of an integrated structure, so that the continuity of integral processing of the tea leaves is realized, and the processing efficiency is further improved; and besides, the control of the rolling strength is realized, and the corresponding strength can be adjusted according to requirements, so that different using requirements are met.

The invention relates to a cattle neck strap device and a cattle heat stress monitoring system. The cattle neck strap device comprises a first neck strap unit, a second neck strap unit, an angle adjusting unit, a locking unit, an environment monitoring unit, a vital sign monitoring unit and a control unit. The cattle neck strap has the advantages that the angles of the first neck strap unit and the second neck strap unit are adaptively adjusted in real time through the angle adjusting unit according to the physique and posture of a cattle, and the comfort of the cattle is guaranteed; the first neck strap unit and the second neck strap unit are easily connected or separated through the locking unit, and operation is easy; the environment monitoring unit is used for monitoring the temperature and humidity information of the environment where the cattle are located in real time; the vital sign monitoring unit is used for monitoring the body surface temperature, the heart rate and the respiratory rate of the cattle in real time, the control unit is used for obtaining information of the environment monitoring unit and the vital sign monitoring unit and accurately judging the heat stress state of the cattle, and the stress state of the cattle can be monitored in real time; and breeding personnel can conveniently and timely cool the cattle subjected to heat stress.

The invention relates to the technical field of pelvic floor postoperative rehabilitation devices, and especially relates to a pelvic floor muscle postoperative rehabilitation device. The device comprises a seat plate, supporting legs are fixedly mounted on the lower portion of the seat plate, a lower bottom plate is arranged between the supporting legs, a rotating mechanism is fixedly mounted on the lower bottom plate, armrests are fixedly mounted on the two sides of the upper portion of the seat plate, a backup plate is fixedly installed on one side of the seat plate, the upper portion of the rotating mechanism is connected with an adjusting mechanism, and the adjusting mechanism is fixedly installed on the upper portion of the seat plate. When the device is used, the angle and the direction can be adjusted according to the requirements of rehabilitation training personnel, the pelvic muscle massage blocks can conduct rehabilitation massage training on pelvic muscles of patients, the application range is wide, the use requirements of different patients are met, and self-adjustment training is conducted according to the requirements of the patients.

The utility model relates to a rear face blowing air opening assembly structure of an auxiliary instrument panel, and relates to the technical field of automobile design and manufacturing. The auxiliary fascia console rear face blowing air opening assembly structure comprises an air outlet panel assembly, an air opening shell assembly, an electric heating plate and an intelligent surface unit. The air port shell assembly comprises an air duct, blades, a first stepping motor and a second stepping motor, the blades are arranged at the front end of the air duct, the electric heating plate is arranged in the middle of the rear end of the air duct, the blades are connected with the first stepping motor and the second stepping motor through gears, and the first stepping motor is connected with the second stepping motor through gears. The air outlet panel assembly comprises an air opening panel and an intelligent surface unit. According to the rear face blowing air opening assembly structure of the auxiliary fascia console, the space utilization rate is optimized, the overall consistency of appearance surface treatment is improved, meanwhile, the aesthetic feeling, the science and technology feeling and the fashion feeling of interiors are increased, and the overall perception quality state is optimized.

The utility model relates to the technical field of electric dining chairs, in particular to an electric dining chair with height adjusting mechanisms, which is characterized in that a first height adjusting mechanism and a second height adjusting mechanism are arranged, the second height adjusting mechanism is connected with a seat assembly, and the first height adjusting mechanism is respectively connected with the second height adjusting mechanism and a foot stool assembly. A user can use the first height adjusting mechanism to adjust the relative height of the second height adjusting mechanism so as to adjust the relative height of the seat assembly, in addition, the second height adjusting mechanism can also adjust the relative height of the seat assembly, and through the synergistic effect of the first height adjusting mechanism and the second height adjusting mechanism, the relative height of the seat assembly can be adjusted. According to the electric dining chair, the height adjusting range of the seat assembly can be increased, the use requirements of a user in different scenes can be met, and the problems that an existing electric dining chair generally has a height adjusting function to adjust the relative height of the chair, but the adjustable range of the chair is limited, and the actual use requirements of the user cannot be met are effectively solved.

The invention discloses a server cooling case which comprises a case body. The case body comprises a first side wall, a second side wall, a third side wall and a fourth side wall, the fourth side walland the second side wall are each provided with a liquid outlet, a ventilation window and a liquid inlet, a dustproof ventilation film is arranged on each ventilation window, a suction ventilator isinstalled at the positions, close to ventilation windows, of one side of the fourth side wall and one side of the second side wall, a U-shaped pipe is fixedly arranged on one side of the suction ventilator, a compressor is connected to one end of the U-shaped pipe, the compressor is connected with the air inlets through cooling liquid pipes, a liquid outlet is connected to the other end of the U-shaped pipe, and installing plates are fixedly installed on the two sides of the third side wall. By arranging the suction ventilator, the U-shaped pipe, the compressor and a hair dryer, the case can be effectively cooled, and therefore the phenomenon that use of the server is affected due to the fact that electric devices inside the case are hot excessively is avoided; the case is reliable to useand good in cooling effect.

The invention provides a sound insulation and noise reduction device for a detachable generator set and a use method of the sound insulation and noise reduction device, relates to the technical field of electric power auxiliary devices. The device aims to solve the problem that an original sound insulation and noise reduction device for a detachable generator set is not provided with a structural device capable of automatically detecting the fuel capacity, therefore, the sound insulation and noise reduction device cannot achieve the functions of automatically detecting the capacity of fuel in a generator and automatically adding the fuel, and cannot assist the generator in effectively improving the power generation efficiency. The device comprises a main body structure, the inner end of the upper side of the main body structure is connected with a group of inserting structures; extension mechanisms are vertically mounted on the rear end surfaces of the inserting structures; opening and closing mechanisms are mounted at the upper ends of the centers of the extension mechanisms in a penetrating manner; and the main body structure comprises a bottom groove plate, a buckle groove, a top plate and a vertical frame. The buckle groove can effectively obstruct noise generated by the internal generator.

The invention discloses a multi-mode audio and video format high-speed conversion method and system, comprising the following steps: Step S1, the conversion system obtains target audio and video files and target conversion formats, and performs audio and video encoder conversion according to the target conversion formats. The matching search obtains the audio and video encoder that supports the target conversion format as the target encoder; the conversion system selects the conversion mode according to the matching state of the target encoder and the target conversion format, and performs the target audio and video files according to the selected conversion mode. Format conversion, so as to provide switching selection of multiple conversion modes for the target audio and video files, and improve the success rate of converting the target audio and video files into the target format. The present invention provides switching options of various conversion modes, and the format conversion has high versatility and strong compatibility, so that the success rate of converting the target audio and video files into the target format is greatly improved, and the conversion speed is greatly improved.

The invention discloses a computer system development worktable with a function of spatial extension. The worktable comprises a worktable body, the upper end of the worktable body is provided with anupper cover plate, the outer surface of one side of the lower end of the worktable body is provided with a supporting column, the outer surface of one side of the middle of the supporting column is provided with a first supporting plate, the lower end of the first supporting plate is provided with a second supporting plate, the lower end of the upper cover plate is provided with a keyboard support, two sides of the keyboard support are both provided with sliding grooves, the lower end of the keyboard support is provided with an article support, and the outer surface of the other side of the lower end of the upper cover plate is provided with a host baffle. The computer system development worktable with the function of spatial extension is provided with a double-layer foldable table top, aone-way gear and a sliding type cable hole, the table top of the worktable can be effectively expanded, the height of a supporting frame can be quickly adjusted, the location of the cable hole can bechanged at will, and a better use prospect is brought.