336results about How to "Easy and intuitive operation" patented technology

The invention discloses a method and system for carrying out unlocking based on picture face identification, and an electronic device. The method comprises the steps of: presetting at least two figure pictures as an unlocking picture password, and storing; displaying multiple figure pictures on a screen lock interface for being selected by users during unlocking; comparing the selected figure picture and the selection order during unlocking with the unlocking picture password, judging whether the selected figure picture and the selection order are matched with the unlocking picture password, if yes, unlocking successfully, and otherwise prompting that the unlocking fails. According to the invention, unlocking can be carried out based on multiple figure pictures stored in the device, and wrong selection or wrong selection sequence of pictures are treated as wrong picture unlocking passwords during unlocking; and the invention has advantages of high safety, convenience and perceptual intuition in operation, no need of real-time collection of the pictures before every unlocking, and convenience provided for the users.

The invention discloses a satellite signal simulator and a satellite signal simulation method. The satellite signal simulator comprises a channel parameter generation unit used for calculating channel feature parameters according to satellite channel model parameters, communication frequency points, orbit parameters, terminal parameters and environment parameters; a radio frequency input unit used for converting intermediate-frequency signals of a satellite down to baseband signals; a channel simulation unit used for, according to the channel feature parameters, respectively performing Doppler frequency shift, multipath shadow fading, additive white noise and amplification filtering processing on the baseband signals; and a radio frequency output unit used for converting the signals output by the channel simulation unit into radio frequency signals for output. According to the invention, the simulated channel model types are enabled to be more diversified, the operation is convenient and visual, and the work accuracy and the data reliability of the satellite signal simulator are improved.

The disclosed method for controlling speed of servo system of AC motor combines inner and outer two control rings. In the inner control ring, using coded disc measures speed of motor based on object of motor. Using load - torque observer carries out feedback control. In the outer control ring, using model of electrical motor through lowpass filter obtains estimated speed of rotor. Calculated average speed is input to feedback loop so as to form feedback control in close loop for whole control system. The method possesses high load capacity and capacity of anti external interference. The invention is suitable to control speed of AC servomotor.

The invention provides an adjusting and correcting method of a light path of a photoelectric system tracking-pointing precision measuring device. The measuring device is mainly composed of an opticalplatform, a laser light source, ground glass, a small-hole diaphragm, a beam splitter, a parallel light pipe collimating mirror, a high-frame-frequency CCD camera and the like, wherein the laser lightsource, the ground glass, the small-hole diaphragm, the beam splitter, the parallel light pipe collimating mirror, the high-frame-frequency CCD camera and the like are installed on the optical platform. By the adoption of a plane mirror, an optical autocollimation, a pentaprism and a theodolite, the positions of the laser light source, the small hole diaphragm and the high-frame-frequency CCD camera of the photoelectric system tracking-pointing precision measuring device are adjusted and corrected, the adjusting and correcting method has the advantages of being high in precision, easy to operate, convenient and visual, the problem of adjusting and correcting the light path of the photoelectric system tracking-pointing precision measuring device is solved, and not only is technological guarantee provided for the development of a space laser communication tracking-pointing technology, but also a reference basis is provided for designing a space laser communication system tracking-pointing precision measuring device.

A method for controlling limit PID of single input / single output system includes carrying out identification on object after A/D conversion for obtaining digital signal of sampling signal, ensuring four parameters corresponding to PID controller to be position value by regulating bottom limit of controller parameters, judging polarity of digital amount input signal and calculating error signal according to it, calculating parameter value of limit PID controller and calculating increment value being sent to executor after D/A conversion for operating controlled object in set range.

The embodiment of the invention discloses a display method and device. The method comprises the steps of: receiving an instruction of regulating an original display area; regulating the original display area according to the instruction and obtaining target display subareas; distributing display memories for each target display subarea and outputting display contents of each target display subarea to corresponding positions of the target display subareas through the display memories to display. By means of the display method and device provided by the embodiment of the invention, the flexible split-screen regulation can be carried out on the original display area according to different regulation instructions; the split-screen display can be carried out according to split-screen results; and therefore, the degree of freedom and the flexibility ratio of the split screen are increased, the visual operation can be conveniently carried out by users and the split-screen operation experience of the users is improved.

The invention discloses a control device with a touch screen, comprising a control terminal and a control module connected to the control terminal, characterized in that the control terminal is provided with a touch screen, and the touch screen includes a A display module, the operation control information corresponds to the stroke of the motor controlled by the control module. By setting the touch screen, the stroke can be displayed intuitively through the scale, which greatly facilitates the operation. In addition, a control method of the control device is also disclosed.

A method for controlling limit PID of multi-input / multi-output system includes identifying model as per transfer function matrix of multi-input / multi-output procedure, designing three optimum demodulation factors based on robust control theory, designing optimum controller based on said factors and optimum performance target, simplifying sub controller in controller matrix, obtaining output control signal by calculation and sending it to executor after D/ A conversion to act it onto controlled object to let controlled object be operated in set range.

The invention relates to an intelligent energy-saving thermostat. The intelligent energy-saving thermostat is characterized by comprising a central processing unit (CPU) with an ARM framework chip, a touch screen display and other printed circuit motherboard and hardware which are provided with functions of a tablet personal computer as well as further comprising a sensor module, a temperature detection module and a temperature control output module which are needed by the thermostat and a storage module, a power module and an epitaxial device access module. The sensor module, the temperature detection module, the temperature control input and output module, the power module and the epitaxial device access module are all controlled by the central processing unit with the ARM framework chip as well as are communicated with other hardware such as a display module and a camera module of the tablet personal computer. The hardware of the thermostat is provided with an Android operating system and the temperature control function is achieved through the application software (APP). The intelligent energy-saving thermostat is initially designed on base of the hardware of the tablet personal computer with the ARM framework chip and operates the Android operating system, so that the intelligent energy-saving thermostat can have more powerful functions on aspects of intelligent control, air conditioning energy saving, remote control, multimedia information push, control instruction push, software and firmware update of products after sale and the like than a traditional thermostat with single chip and an intelligent home controller.

The invention relates to an anti-interference PID (proportion integration differentiation) controller for an industrial unstable time-lag process and a design method thereof. The controller consists of a set value tracking controller, a disturbance resisting controller, a filter, a controlled process identifying model and three signal mixers. The design method of the anti-interference PID controller for the industrial unstable time-lag process provided by the invention can improve the anti-interference capability of a system to a great extent, and compared with the other design methods, the control system is simple in structure, the controller is standard in form, industrial realization is easy, respective performance is adjusted through one-parameter, the operation is convenient and visual, the controlling effect is stable, and better system performance can be realized. The industrial control system can be widely used for controlling the production process of various enterprises in the industries, such as energy, metallurgy, petrifaction, light industry, medicine and textile manufacturing.

The invention discloses an electronic device firmware updating method and system. The electronic device has the network connection function. The method of the invention comprises the following steps: at start-up, entering a security update mode before the operating system is loaded; starting the network service functions of the electronic device in a safe mode, including starting to intercept a connection request; establishing network connection after intercepting the connection request, receiving an operation and maintenance instruction to the firmware data of the electronic device; and according to the operation and maintenance instruction, performing operations to the corresponding firmware data of the electronic device. The system comprises a firmware storing unit and an updating unit, wherein the updating unit contains a network module and a processing module. The system of the invention can update the electronic device firmware safely and easily, save the storage space of the hardware and reduce the waiting time of the user and the maintenance cost.

The invention discloses a method for moving a cursor and a display device employing the same. A user presses a corresponding numeric key on a remote controller to move the cursor and execute target selection, so that a simple, convenient and intuitive operating method is provided to the user. The method for moving the cursor comprises the following steps of: responding to a first control instruction, and displaying a plurality of first layer subareas on the display device; responding to a second control instruction, and selecting one of the first layer subareas; and moving the cursor to the selected first layer subarea.

The invention discloses a fault detector of an excavator. The fault detector of the excavator comprises a detection wiring harness, an electric device drive module, a meter control panel and a power line. The electric device drive module is used for driving to-be-detected electric devices in an air conditioner system, an electronic throttle control system and a flameout system for simulated working state demonstration. The meter control panel comprises an electric device working state demonstration control button, an electric device working state indicator lamp and a display module, wherein the electric device working state demonstration control button is used for controlling the electric device drive module to achieve simulation demonstration of the working state of the to-be-detected electric devices; the electric device working state indicator lamp is used for displaying the working state of the to-be-detected electric devices; the display module is used for displaying related data information and/or related data information change situations of the to-be-detected electric devices in the air conditioner system, the electronic throttle control system and the flameout system under the simulated working state. The fault detector of the excavator can rapidly and accurately detect electric devices which cannot be easily detected or are large in detection difficulty in the maintenance process of the excavator and remove faults, and operation is visual, easy and convenient.

The invention discloses an ultra-low frequency modal test suspension system, comprising a modal test suspension device and a monitoring computer for realizing remote detection and monitoring. The monitoring computer is connected with an Ethernet router; an air tank and a pneumatic actuator are connected with an air pressure control MPU (Microprocessor Unit); a suspension follower is connected with a linear displacement coder, a suspension force sensor and an electromagnetic force sensor; an electromagnetic actuator is connected with a power amplifier; the linear displacement coder is connected with a CPLD (Complex Programable Logic Device) processing module which is connected with an electromagnetic force control MPU; the suspension force sensor and the electromagnetic force sensor are connected with the electromagnetic force control MPU; the air pressure control MPU and the electromagnetic force control MPU are both connected with a modal suspension control MPU; and the modal suspension control MPU is connected with the Ethernet controller which is connected with the Ethernet. The invention realizes fully digital control, improves the work efficiency, improves the control precision and reduces the influence of the accessories on the modal test.

The invention relates to the technical field of quality detection and relates to a furniture static pressure fatigue test machine, in particular to a table, bed and cabinet static pressure fatigue test machine which comprises a machine frame and a central controller. A horizontal motor, a horizontal screw rod, a longitudinal motor and a longitudinal screw rod are fixedly installed at the top of the machine frame. The horizontal screw rod is perpendicular to the longitudinal screw rod. The horizontal motor is connected with the horizontal screw rod, a horizontal track is arranged on the lower portion of the horizontal screw rod, the longitudinal motor is connected with the longitudinal screw rod, and a longitudinal track is arranged on the lower portion of the longitudinal screw rod. The furniture static pressure fatigue test machine is used for simulating tests for testing the strength or bearing capacity of each part of furniture under the condition that the parts are subjected to one-time or repeated loads when the furniture is used normally and misused habitually. The table, bed and cabinet static pressure fatigue test machine is suitable for testing mechanical properties of table, bed and cabinet furniture.

The invention provides a three-dimensional virtual visualization display method of a thermal power plant. The method includes the steps that a three-dimensional model of the thermal power plant is established; modeling is conducted on the state of water, the state of fire and the state of oil in the thermal power plant, and a three-dimensional water vapor model, a three-dimensional flame model and a three-dimensional oil model of the thermal power plant in the operating process are obtained; the three-dimensional water vapor model, the three-dimensional flame model and the three-dimensional oil model are respectively combined with a three-dimensional model of the thermal power plant, and a three-dimensional model of the initial operating state of the thermal power plant is obtained; the three-dimensional model of the initial operating state of the thermal power plant is adjusted according to real-time data, so that a three-dimensional model of the real-time operating state of the thermal power plant is obtained; the model is displayed. The three-dimensional virtual visualization display method of the thermal power plant has the advantages that the real-time operating state of the thermal power plant and the details of equipment are displayed vividly and visually, the operating management efficiency of the thermal power plant is greatly improved, and the advantages of being simple, convenient and visual to operate, wide in applied range, large in potential economic benefit, and capable of being used in a staff training system, a long-distance routing inspection system, an operation production management system and the like of the thermal power plant are achieved.

An industrial process control technology field two-input-output system's decoupling control method, it lets the reverse decoupling structure's decoupling machine and the controller into one decoupling control machine, and it forms the unit feedback control structure. By adding the compensation item, it can eliminate decoupling controller machine's unstable factors. It designs the decoupling controller machine's sub-controller base on the inner module theory, then the final decoupling control machine is almost the easy implement PID/PI controller. When has the actual operating control, the first is deduce the controller parameter's lowest borders which can meet the LuBang stability condition. Then on the base of this border minimum, separately enlarge every loop's control parameter monotonously until gain the system mark capability which complies with the project's requirements. The control method structure of this invention is simple and easy to achieve, and has wide applicability and is easy to operate, it can quickly accurate tuning control parameters and makes the closed loop control system meet the LuBang stability requirement.

A fine machining method of the rolling stand frame belongs to machine finishing technology field. At first determining center of turning circle position of the fine boring machine table and mounting end face multiple tooth circular dividing table thereon, the tetrahedron is mounted on the end face multiple tooth circular dividing table, and adjusting it to collimate with the photoelectricity autocollimation to determine machineable machine zero position point; the rolling stand frame is mounted on the worktable, and adjusting it to symmetry with the center of gyration; boring the frame side face of each axle hole for the rolling stand frame and the axle hole until achieving to the required precise size, when the frame rotates from one side to another side, rotating relevant angle of the worktable contrasting to graduation value of the end face multiple tooth circular dividing table, the tetrahedron is measured by the photoelectricity autocollimation, fine tuning the worktable to collimate the corresponding face of the tetrahedron with the sending beam of the photoelectricity autocollimation, at this point, the rotating angle is exact value, then processing. The invention operates conveniently and audio-visually, with reliable processing manufacturability, and reducing accumulation of error and improving process precision of the frame.

The invention discloses a feeding system for a coating machine and a control method. The feeding system comprises a stock tank, a buffer tank, a first feeding tank and an injection pump, which are sequentially connected through pipelines, wherein pneumatic valves are arranged between the stock tank and the buffer tank, between the buffer tank and the first feeding tank and between the first feeding tank and the injection pump; the feeding system is also provided a second feeding tank which is connected between the buffer tank and the injection pump through pipelines and is arranged in parallel connection with the first feeding tank, and pneumatic valves are provided between the second feeding tank and the buffer tank and between the second feeding tank and the injection pump. According to the invention, the technical problem that the injection pump needs to be shut down and wait when slurry is being supplemented to the feeding tanks in the prior art to be completely overcome, thereby improving production efficiency and the process utilization rate of the coating machine; when the buffer tank fills slurry to the feeding tanks and the feeding tanks fill the slurry into the injection pump, the manner of pressure feeding of the slurry by compressed gas is used, which enables the technical problem that conveying of slurry through pumping in traditional methods easily causes generation of bubbles in slurry and thus affects slurry quality to be overcome.