147results about How to "Auto resize" patented technology

The embodiment of the invention discloses a method for zooming screen fonts and a terminal device, relating to the application field of engineering. The size of the font can be adjusted according to the distance from the user to the screen. The method comprises: gaining the distance from the user to the screen, adjusting the size of the font according to the distance, and displaying the adjusted font on the screen. The terminal device comprises a distance gaining unit, a font size adjusting unit and a displaying unit; by allowing for the changeable distance from the user to the screen, the terminal device also comprises a distance changing pre-arranging unit, a distance changing calculation unit and a distance changing judge unit; the terminal device can be a mobile phone, a computer, a music player or a digital media machine, etc. The method for zooming screen fonts and the terminal device can improve the satisfaction of the user on the screen font display.

The invention relates to a combined judging strategy-based visual target tracking method. The method comprises the following steps of: (1) aiming at a target size change problem, establishing a self-adaptive scale so as to automatically adjust the size of a tracking frame; (2) aiming at a problem that a position of a target cannot be continuously determined after the target is sheltered, predicting a current observed quantity by adoption of Kalman filtering, and after the target reappears, continuously tracking the target by using a KCF algorithm; and (3) aiming at a problem of tracking failure caused by rapid movement of the target. According to the method, a movement speed of the target is calculated through detecting a position movement distance of the target in adjacent frames, and a detection area size extension coefficient is self-adaptively adjusted, so that relatively high precision can be obtained under different environments, the robustness of the whole tracking system is effectively improved, a relatively high calculation speed is kept, and a high engineering practical value is provided.

The invention relates to a testbed for the reliability of a power unit of an industrial robot and belongs to reliability testing devices. The testbed is composed of a tris-comprehensive test box, the power unit, a radial force loading unit, a universal joint coupler and a torque loading unit. The power unit and the radial force loading unit are placed in the tris-comprehensive test box, and the torque loading unit is connected with the power unit through the universal joint coupler. The actual working condition of the power unit of the industrial robot can be simulated for reliability testing, the power unit is located in the tris-comprehensive test box, applying of loads such as the temperature, humidity and vibration of the power unit can be achieved, therefore, the actual environment working condition of the power unit of the industrial robot is simulated, higher testing efficiency is achieved, the automation degree is high, vibration, temperature, transmission efficiency, power losses and other parameters of the power unit can be acquired and calculated in real time, and the testbed can be used for detection of transmission errors, return differences and backlashes of a speed reducer.

The invention discloses a method and a device for measuring tiny two-dimensional displacement by a computer camera, providing a method and a device for measuring displacement in a non-contact mode by taking a computer camera as a displacement sensor. The device is formed by connecting the computer camera with a common computer. The computer is also provided with a camera shooting and digital image processing program, so that the computer can obtain the tiny two-dimensional displacement vector and velocity vector of a measured object on a plane which is vertical to the optical axis of the camera under the situation that the lighting condition is good and relatively constant; and the measurement precision is less than one pixel unit. The method for measuring displacement of the invention comprises: by means of autocorrelation calculation carried out on a reference frame, selecting an optimal matching comparison window; by means of cross correlation matching calculation, obtaining the instant relative displacement vector and the total displacement vector of the object; according to the measuring result, determining whether to update the reference frame and the optimal matching comparison window thereof; and automatically regulating to search the magnitude of the matched cross correlation operator array.

A shock absorber piston assembly and a self-adjusting damping shock absorber comprising same relate to a shock absorber part and a shock absorber; the shock absorber piston assembly comprises a main piston, a floating piston, and an auxiliary working cylinder; the inner hole of the main piston is fixedly connected with the excircle of the auxiliary working cylinder; one end of the auxiliary working cylinder is fixedly connected with a piston rod; a clamping ring, the floating piston and a floating piston reset spring are respectively installed in the auxiliary working cylinder; and the inner cylinder wall of the auxiliary working cylinder is axially provided with a throttling groove; the shape of the longitudinal section of the throttling groove is a trapezoid or a multi-level ladder-shaped structure. The self-adjusting damping shock absorber comprising the shock absorber piston assembly comprises an oil storage tank, a working cylinder, a piston assembly, and a shock absorber spring, and the piston assembly is the shock absorber piston assembly. The invention can automatically adjust the damping, has very good shock-absorbing effect, and also has the advantages of simple structure, low cost, reliable performance, long service life, and the like, and ensures the running ride comfort and the stability of the vehicle.

The invention discloses a device and method for reducing power consumption of electronic equipment. The method comprises the following steps: obtaining the load state information of a load module; obtaining a voltage regulation signal according to the load state information and a pre-stored logic mapping query table; and regulating the magnitude of the input voltage of the input end of the load module according to the voltage regulation signal. In the invention, the mechanism of logic mapping query table is introduced; and when the load state changes, the magnitude of the input voltage of the load module can be automatically adjusted so as to save energy of the electronic equipment and achieve the purpose of reducing the power consumption.

The present invention relates to a wind tunnel typed motor which uses acting force of wind, steam, and current to drive the lamina to directly rotate the rotor, the motor comprises a shell with an adjustable fan housing which is fixed on a rotating-disk base, a stator, a rotor, and a lamina in the motor. The technical points are that the inner annulus of the stator is fixed and connected with the top of the lamina. The rotor is arranged in the stator by a bearing and causes the slide of the outer annulus of the rotor to rotate along the parallels on a shoe plate at the two sides of the shell. The adjustable fan housing consists of a verge board which is hinged at the periphery of a junction panel, and the junction panel is fixed at the lateral of the shoe plate of the shell. The cylinder body end of a fluid cylinder is hinged on the junction panel by a pin roll, and the piston head of the fluid cylinder is hinged on a verge board. The fluid cylinder drives the verge board to swing around an articulated axle. The rational structure of the motor obviously improves the capacity of generating electricity, which can gather wind in when the speed of wind is rather slow, strengthen the wind energy efficacy, block wind in strong wind, effectively prevent components from damage,, and ensure the safe operation.

The invention discloses a method and a system for self-adaptively changing a window size. When a user operates a touch screen, a touch point of a user on the screen is recorded; a common touch range of the user is determined through the recorded touch point; the screen size can be automatically adjusted according to the common touch range; when the user selects an automatic adjusting function, the screen size can be controlled to the normal range according to the recorded common touch range; after the operation of the user is finished, an original screen size is recovered; the user also can set one period, the common touch range is updated at fixed period; the screen size is automatically adjusted according to the touch range, and the touch screen can be conveniently operated by one hand of the user.

The embodiment of the invention relates to communications field, in particular provides a method of adjusting the voice automatically, a terminal and a system. When acquiring the speed value, the terminal adjusts the volume according to the speed value. In the technical scheme provided by the embodiment of the invention, the terminal can automatically adjust the volume along with the variation of the speed value in the moving process, thereby improving the quality of the outputted voice, improving the capacity of resisting interference, and improving the evaluation of voice by the terminal user.

The invention discloses a torch combustion system with automatically adjustable sound speed. The torch combustion system comprises a torch combustor (14), a torch header pipe (12), torch branch pipes (13), a quincuncial flame holder (15) and a vibration attenuation support (16), wherein the torch combustor (14) is installed on the torch branch pipes (13), air inlets of the torch branch pipes (13) are all connected with the torch header pipe (12), the quincuncial flame holder (15) and the torch branch pipes (13) are connected to form an integral structure through the vibration attenuation support (16). The torch combustion system is characterized in that the torch combustor (14) comprises a flow guide cover (11), an external sleeve (7) and a supporting bar (9), the flow guide cover is installed at the upper end of the supporting bar, the external sleeve is sleeved on the supporting bar, and the lower end of the supporting bar is connected with a device for automatically adjusting the height of the flow guide cover (11). According to the torch combustion system, the structure is simple, the size of an air outlet can be automatically adjusted according to the pressure of flare gas, the combustion effect can be obviously improved and the combustion efficiency is high.

The invention discloses an intelligent pre-reading method based on distributed storage. The method comprises the following steps: when a read request is received, enabling a client to identify the sequence of each data stream according to the continuous falling condition of data streams in multiple windows, and perform screening to obtain sequence data streams with sequence; adjusting the size ofa window corresponding to each sequential data stream to pre-read each sequential data stream to generate a pre-read instruction; and sending the pre-reading instruction to each first storage terminalcorresponding to the sequential data stream, the pre-reading instruction being used for controlling each first storage terminal to search and store each piece of pre-reading data corresponding to thesequential data stream into a cache disk. According to the invention, after sequential judgment and pre-reading are carried out on the data in the storage client, the corresponding pre-reading data are searched in the corresponding distributed data storage terminals according to the data flow pre-read in the storage client for pre-reading storage, so that the consistency of reading the cached data flow in a distributed shared volume scene is ensured.

The invention discloses an electromotion and generation integrated unit and a pure electric vehicle control system for a vehicle, which belongs to a vehicle control technology. A stator magnet is fixed at the middle part of the inner wall of a motor casing of the electromotion and generation integrated unit, and the rotor armature(s) of a generator and a motor is (are) supported in the central axial line of the stator magnet, wherein the number of the rotor armature(s) is one or two; a controller is respectively connected with the electromotion and generation integrated unit and a driving power source conversion control switch; the output end of the electromotion and generation integrated unit is respectively connected with a 12 V power source charger and a renewable power source, and a battery series / parallel conversion control system is respectively connected with storage battery packs E1 and E2 as well as the driving power source conversion control switch. The alternative charging and the discharging of the storage battery packs E1 and E2 are controlled by the driving power source conversion control switch. Since the charging and the discharging are automatically controlled, therefore, the system, disclosed by the invention, has the effects that the service life of the storage battery packs is not shortened and quick, safe and enough charging is reasonably ensured, and has the advantages of environment protection, energy conservation and wide technology application range.

The invention discloses an unmanned aerial vehicle intelligent charger. The unmanned aerial vehicle intelligent charger comprises an AC / DC unit, a DC / DC unit, a microprocessor, a balance charging module, a battery module, a battery module voltage detection unit, a USB power supply unit, a USB output charging jack, a voltage / current sensor, a keyboard, a display unit, a heat dissipation fan driving unit, a heat dissipation fan, a wifi unit, a USB interface, an isolated type communication interface chip and a thermistor sensor. Since an active balancing technology is employed, the charging efficiency and the charging speed are improved, and the service life and the safety of a lithium battery are effectively protected; the microprocessor is provided with the USB interface and supports program updating of hardware with a USB port or an SD card; the microprocessor is connected with the WIFI unit so as to realize such functions as real-time monitoring of a client through an mobile phone APP and the like; the microprocessor unit automatically adjusts and controls the size of DC / DC output signals according to the DC / DC output signals detected by the voltage and current sensor; by use of the isolated type communication interface chip, EMI (electromagnetic interference) is reduced, and the wiring length and the signal-to-noise performance of a system are greatly improved; and by use of the battery module voltage detection unit, each independent battery in the battery module can be monitored, and each battery is effectively controlled.

The invention belongs to the field of communication and provides a method and device for detecting eyesight. The method for detecting eyesight comprises the steps that a main machine obtains the distance between the main machine and an auxiliary machine, the distance is worked out in the mode that the main machine and the auxiliary machine send detecting signals to each other and receive responding signals of the detecting signals from each other, and the main machine and the auxiliary machine are both devices provided with short distance wireless communication modules; the main machine provides an eyesight detection icon table corresponding to the distance between the main machine and the auxiliary machine through matching according to the distance between the main machine and the auxiliary machine; the main machine displays eyesight detecting icons in the eyesight detecting icon table corresponding to the distance between the main machine and the auxiliary machine; the main machine receives a result of identification of the eyesight detecting icons by a detected person, wherein the result of identification is sent by the auxiliary machine; the main machine obtains a detecting result according to the result of identification. According to the method and device for detecting eyesight, the size of each icon in the eyesight detecting icon table is automatically adjusted according to the different current distances between the main machine and the auxiliary machine, the influence of the environment is avoided, and user experience is greatly improved.

The invention provides an adaptive closed fixture for a live working insulator of a power transmission line. The adaptive closed fixture mainly comprises a front clamping body, a rear clamping body, a front clamping cover and a rear clamping cover, wherein the front clamping body and the rear clamping body are applied to front and rear steel caps of the insulator respectively; the front clamping cover and the rear clamping cover are matched with the front clamping body and the rear clamping body respectively; the front clamping body and the front clamping cover, and the rear clamping body and the rear clamping cover are connected together through pin shafts at one end respectively; semi-arc grooves with the same radius are formed between the front clamping body and the front clamping cover, and between the rear clamping body and the rear clamping cover respectively; a round bayonet capable of clamping the steel caps of the insulator is formed in the middle when the front clamping body and the front clamping cover, and the rear clamping body and the rear clamping cover are hinged into a whole respectively; the other ends of the front clamping body and the front clamping cover, and the rear clamping body and the rear clamping cover are connected with clamping bolts with fixing nuts through the pin shafts respectively; and in the round bayonet in the middle of the front clamping body, the front clamping cover, the rear clamping body and the rear clamping cover, a large inclined plane is arranged at least from one side surface to the other side surface and a large reducing tapered bayonet is formed.

The invention relates to the technical field of detection and discloses a sensitivity automatic detection method and device of an electron capture detector. The automatic detection method comprises detecting current basic frequency of a voltage pulse in an electron capture detector, determining whether the detected current basic frequency exceeds a predetermined basic frequency range of the voltage pulse, outputting a judgment result, producing an adjustment command for adjusting a target current of the electron capture detector if the result shows that the detected current basic frequency exceeds the predetermined basic frequency range, and adjusting the magnitude of the target current in accordance with the adjustment instruction so that the electronic capture detector can adjust the basic frequency of the voltage pulse according to the adjusted target current. The method and device can automatically adjust the magnitude of the target current of the electron capture detector so that the signal-to-noise ratio of the measured chromatogram is not affected when the electron capture detector cavity is polluted or influenced by other factors so that high sensitivity of the electron capture detector is kept.

The invention discloses a tool clamp capable of automatically adjusting sizes. The tool clamp comprises a shell, a connecting rod and a first movable block, a limit plate is arranged in the shell, anda movable rod is installed on the inner side of the limit plate; a first spring wraps the outer side of the movable rod, the connecting rod is arranged at the bottom of the first spring, and a fixedplate is connected to the bottom of the connecting rod; a clamping plate is installed at the bottom of the fixed plate, slide blocks are arranged at the two ends of the clamping plate, and a skid resistance trace is embedded in the surface of the clamping plate; the first movable block is arranged on the outer side of the shell, a second spring is arranged in the first movable block, the top of the second spring is connected with a second movable block, and a connecting groove is reserved in the top of the movable rod. The tool clamp capable of automatically adjusting sizes can automatically adjust sizes of unmachined objects, and therefore the tool clamp can be suitable for machining the unmachined objects with different sizes.

The invention relates to the technical field of an industrial robot speed reducer and particularly relates to an industrial robot speed reducer torsion rigidity testing stand. A vertical board is mounted at an upper side end of a supporting stand, a driving motor, a speed reducer, a torsion sensor and an electric dynamometer are sequentially mounted on the vertical board from up to down, a center rotation shaft of the driving motor is connected with the speed reducer, the speed reducer is connected with the torsion sensor through a shaft coupling, the torsion sensor is connected with the electric dynamometer through the shaft coupling, the torsion sensor is connected with a circular grating through a program control wire, and the torsion sensor, the driving motor and the electric dynamometer are connected with a controller through program control wires. The industrial robot speed reducer torsion rigidity testing stand is advantaged in that torsion loading for a power unit is carried out through the electric dynamometer, magnitude of an application torque can be automatically adjusted, a radial force loading unit is employed to simulate a radial force of the power unit of the industrial robot in a start or operation process, and magnitude of applied radial force can be automatically adjusted.

The invention discloses an information processing method which is applied to electronic equipment. The electronic equipment comprises an image acquisition unit. The method comprises the steps that a preview image is acquired by the image acquisition unit, and the image acquisition unit possesses a first form of focus frame; a focus object is confirmed on the basis of the preview image; the relative relation between the focus object and the focus frame is confirmed; whether the form of the focus frame requires to be adjusted is judged on the basis of the relative relation so that a first judgment result is acquired; and when the first judgment result is yes, the first form of the focus frame is adjusted to be a second form corresponding to the focus object.

The invention discloses an air jet loom for weaving lint. The air jet loom comprises a frame and a control system, wherein the frame is provided with a warp feeding device, an opening device, a weft guiding device and a coiling device in sequence in a lint weaving direction; the warp feeding device comprises a ground warp feeding mechanism and a pile warp feeding mechanism; the weft guiding device comprises a plurality of pipe piece weft guiding units connected in sequence, and flat reed structures positioned behind the pipe piece weft guiding units; all the pipe piece weft guiding units and the flat reed structures are mounted on a reed base; and a lint edge supporting and ironing device is arranged between the coiling device and the weft guiding device. The air jet loom preferably solves such problems as warp feeding tension control, easy wear of abnormal reeds in a weft guiding process and lint edge shearing encountered in the lint weaving.

The invention discloses a warp feeding device of a lint air jet loom. The warp feeding device comprises a frame and a servo control system, wherein a ground warp feeding mechanism is arranged at the upper part of the frame, and a pile warp feeding mechanism is arranged at the lower part of the frame; the ground warp feeding mechanism is provided with a ground warp weaving shaft and a ground warp feeding tension roller in sequence in a ground warp conveying direction; the ground warp weaving shaft is driven by a ground warp servo motor; the ground warp feeding tension roller is connected with a ground warp tension sensor; the pile warp feeding mechanism is provided with a pile warp shaft disk, a pile warp feeding tension roller, a yarn guide roller, a velvet raising control roller and a velvet raising tension roller in sequence in a pile warp conveying direction; the pile warp shaft disk is driven by a pile warp servo motor; the pile warp feeding tension roller is connected with a pile warp tension sensor; the velvet raising tension roller is connected with a tension spring; and the servo control system comprises a servo controller. The warp feeding device is precise in tension control, can adjust the positions of ground warps and pile warps and the heights of velvets, prevents the generation of high-low velvet phenomenon, and improves the weaving quality.

The invention discloses an engraving machine capable of changing the size of a drill bit according to lines and spraying. The engraving machine comprises an engraving box and an engraving cavity formed in the engraving box; a first moving motor is fixedly arranged on the upper cavity wall of the engraving cavity; and a first moving worm is arranged at the front end of the first moving motor. Afterthe engraving machine is used, when an irregular workpiece is clamped, the workpiece can be clamped more effectively, so that the workpiece is prevented from deviating during working; after the engraving is finished, the engraved lines can be polished, the engraving effect is improved, the size of the drill bit can be automatically adjusted without manual replacement when the drill bit needs to be replaced, and the working efficiency is improved; and during spraying, whether the position is engraved or not and the engraving depth are determined through the up-down displacement change of a sensor, then the position is sprayed, then dye possibly splashed out is blocked through a baffle to prevent from being splashed out to the surface of a workpiece, the workpiece is prevented from being wasted, and economic losses are reduced.

The invention discloses a production process of an inner ring of a metal wound gasket and belongs to the technical field of metal part processing. The production process comprises the following stepsof S1, loading steel strips automatically; S2, adjusting the size of a channel automatically; S3, polishing and derusting the steel strips automatically; S4, cleaning burrs on the surfaces of the steel strips; S5, carrying out bend forming; and S6, cutting and unloading the steel strips automatically. The production process is high in degree of automation, reduces the labor force, can transfer thesteel strips of different sizes and is relatively high in practicality, so that the production quality of the inner ring of the metal wound gasket is improved.

The invention relates to an energy storage stapling machine sending out a stitching needle groove from the front. The energy storage stapling machine comprises a pedestal, an upper cover, the stitching needle groove, a box and a needle stitching piece, wherein an elastic needle pushing apparatus is in slide fit in the stitching needle groove; the box is hinged on the pedestal; the upper cover is hinged on the box or coaxially or non-coaxially hinged on the pedestal together with the box; the front end of the box is provided with a notch which allows the stitching needle groove to enter and exit; the vertical plane of the needle stitching piece is provided with a bump or a sliding groove; the middle or middle upper part of the main vertical plane of the needle stitching piece is provided with a butt joint hole; the front end part of the stitching needle groove is provided with a chute which accommodates the bump and limits upward and downward slide of the bump or provided with a lug boss which is in butt joint with the sliding groove; an elastic energy storage device and an energy releasing switch are arranged between the box and the upper cover; and a trigger end of the elastic energy storage device is movably butted in the butt joint hole of the needle stitching piece. The needle stitching piece of the stapling machine is ejected along with the stitching needle groove, so thestitching needles can be conveniently and rapidly replaced and good stitching needle mounting effect is achieved; and compared with an ordinary stapling machine, the energy storage stapling machine saves about 70 percent of force.

The invention discloses a splicing display system, comprising: a plurality of mutually spliced back projection units, wherein a splicing joint exists between two adjacent back projection units; each rear projection unit comprises a projector and a screen assembly, wherein the screen assembly comprises a Fresnel lens and a rear projection screen, and two adjacent Fresnel lenses are spliced with each other; the projector projects light beyond the range of the display image of the rear projection screen and beyond a part of the light projected onto the side of the screen assembly. The side surfaces of each Fresnel lens which are spliced with each other are provided with tangent angles; also included is an adaptive adjustment device for detecting changes in ambient temperature and automatically adjusting the size of a projector projection picture according to a preset program. The range of light emitted by the projector in the application is enlarged compared with the prior art, and part of the light can enter into the splice joint through the side of the screen assembly, and then is emitted from the front of the rear projection screen, so that the splice black line is completely eliminated, and the best effect of eliminating the black line can be maintained when the temperature is changed.

The embodiments of the invention relate to a program guide page display method and device, which are used for browsing EPG while playing a program video. The method comprises the following steps: whena display device corresponding to a video playing processing device plays a video in a full-screen playing mode, the video playing processing device receives an instruction of exiting the full-screenplaying mode; and the video playing processing device is used for switching the playing mode of the video from the full-screen playing mode to a non-full-screen playing mode according to the instruction of exiting the full-screen playing mode, and displaying a program guide page on other areas except the playing window; therefore, the EPG can be browsed while the program video playing is realized, and the user experience is improved.

The invention discloses metal wound gasket inner ring machining equipment, and belongs to the technical field of metal part machining. The metal wound gasket inner ring machining equipment comprises afeeding device and a workbench, a grinding and rust removing device, a guide traction device, a cleaning device and a bending forming device are sequentially arranged in the length direction of the workbench, a cutting device is arranged above the bending forming device, the feeding device comprises a bearing base plate, a driving assembly and a fixing assembly, the grinding and rust removing device comprises a first grinding assembly and a second grinding assembly, the guide traction device comprises a positioning guide assembly, a driving guide assembly and an adjusting traction assembly, and the bending forming device comprises a protective cover, a limiting assembly, a forming assembly and a driving adjusting assembly; and the protective cover is arranged on the top of the workbench in a covering mode and can form a containing space, and a guide slide way is arranged on the workbench. The metal wound gasket inner ring machining equipment has the advantages that the automation degree is high, the manual labor force is reduced, in addition, conveying of steel bars with different sizes can be realized, the practicability is higher, and the production quality of metal winding gasket inner rings is improved.

The invention discloses a topological optimization design method for a compliant mechanism with specified real output displacement. A model containing a virtual input spring and an output spring is used for auxiliary calculation, and a displacement field obtained without the virtual input spring and the output spring is used as a real calculation target, so that the obtained compliant mechanism has specified real output displacement; and meanwhile, a self-adaptive output spring stiffness method and a self-adaptive weighting factor method are introduced, so that the output spring stiffness canbe automatically adjusted along with the displacement of a given target, and the relative weight of two sub-targets can be automatically adjusted. The numerical instability phenomenon of topological optimization of the compliant mechanism is avoided, and the output displacement obtained by the compliant mechanism can reach the specified real output displacement.

A hand-held device is used for adjusting the size of a picture displayed by a video device. The hand-held device comprises a calculating module, an acquisition module and a communication module. The calculating module is used for calculating the distance between the hand-held device and the video device. The acquisition module is used for obtaining adjusting signals according to the distance. The communication module is used for sending the adjusting signals to the video device in order that the video device adjusts the size of the picture displayed by the video device. In addition, the control method for the hand held device is provided.

The invention provides a system for automatically adjusting a display font size of reading software, which is applied to an electronic device. The electronic device comprises a memorizer, a display screen and a distance sensor. The memorizer is used for memorizing an incidence relation between a pre-set display ratio of a display font of the reading software and a distance from a user to the display screen. When the display screen is used for displaying the reading software opened by the user, the system is used for reading a current distance, which is detected by the distance sensor, from the user to the display screen; a needed display ratio of the display font is calculated according to the current distance, the current display ratio of the display font of the reading software and the incidence relation. Then, the system is used for generating a control instruction according to a calculation result and outputting the control instruction to the display screen to adjust the display font of the reading software to the needed display ratio. The invention further provides a method for automatically adjusting the display font size of the reading software.