46results about How to "Optimal Control Technology" patented technology

The invention relates to a double-arm transmission robot applied to a clean environment, which is used for the transmission and high-precision positioning placement of a large-diameter semiconductor silicon wafer in a high-cleanliness environment. The double-arm transmission robot is in the structural form of R-theta type and has the working principle of a space structure based on a cylindrical coordinate system and the characteristic of independent control of all motion shafts. The double-arm transmission robot mainly comprises an R-axis left arm mechanism, an R-axis right arm mechanism, a T-axis rotating mechanism, a Z-axis lifting mechanism, and the like and seals the pollution of a drive mechanism on an external environment by adopting a special seal device so as to be suitable for the high-cleanliness production environment requirement.

The invention relates to a data protector for an external memory and a data protection method. The data protector for the external memory comprises a key generator and an address mapping circuit. The code key generator is used for generating a code key for protecting the data of the external memory. The address mapping circuit is used for carrying out encryption operation to an input address for accessing the external memory by using the code key generated by the code key generator so as to generate a target address which corresponds to the input address. The data protector can be used for effectively protecting the data of the external memory.

Embodiments of the invention disclose a touch screen control method and device of a mobile terminal and the mobile terminal. The method comprises the following steps of: detecting a currently operated foreground application program; obtaining an application identifier of the foreground application program; and opening or closing a mistaken touch prevention function of the current terminal. According to the method, the mistaken touch prevention function of the current terminal is opened or closed according currently operated application program, and the opening and closing of the mistaken touch prevention function can be dynamically and self-adaptively controlled, so that the technical problem that the touch screens cannot be normally operated under certain application programs after the mistaken touch prevention function is opened in the prior art is solved, the touch screen control technology of the existing mobile terminals is optimized, and the self-adaptive mistaken touch prevention for the touch screens of the mobile terminals is realized.

The invention discloses a garbage percolate treatment method, and belongs to the technical field of waste resource treatment. The method adopts an anaerobic and aerobic mode to treat garbage percolate, and comprises the following steps that: the garbage percolate is collected in an adjusting tank; after the garbage percolate is evenly stirred, the pH is adjusted, and the garbage percolate is injected into an anaerobic reactor and subjected to anaerobic fermentation at a temperature of between 30 and 39 DEG C; the anaerobic effluent enters a primary aerobic system, the flow rate of the water in an aerobic tank reaches 0.2 to 1 meter per second under the action of an aeration device, then a biochemical environment with a high dispersion system and high transfer mass is formed in a reaction tank, and the wastewater is subjected to high-strength oxidation treatment; the garbage percolate enters a secondary aerobic system and is subjected to anaerobic, facultative aerobic and aerobic multi-level circulating treatment, and ammonia and nitrogen are fully discomposed and removed under the circular action of denitrification and nitration; the secondary aerobic effluent is subjected to coagulation treatment in a sedimentation tank, and the effluent color is solved; and the sludge is used for reflowing and fertilizing gardens and parks. By applying the method, the clean energy source which is methane can be acquired, and the aim of the garbage percolate can be treated at low cost.

The invention relates to a power/voltage stability margin assessment method of an electrical power system, and provides a power/voltage stability margin assessment method of an alternating current/direct current mixed-linkage electrical power system with multi-infeed direct current. The method involves an equivalent mode for equalizing a complex power grid as a simple power grid, a calculation method for power/voltage stability margin index (PVSI) of the electrical power system and determination of a power/voltage stability boundary of the electrical power system. The method has the advantagesthat 1, the complex power grid with various elements is equalized as the simple power grid to provide convenience for all sorts of electrical power system analysis and control techniques; 2, the power/voltage stability margin index is adopted for conducting on-line measurement on the power/voltage stability margin of the electrical power system under a dynamic situation, and identifying the weaknodes of a network; 3, the value of the power/voltage stability margin index is compared with the power/voltage stability boundary to judge whether or not the electrical power system is stable, and guidance can be provided for on-line control.

The invention discloses intermetallic compound and carbonitride co-hardened powder metallurgy high-speed steel, which is prepared by the following steps: strengthening a steel matrix by using an intermetallic compound generated in situ and additional carbonitride, and obtaining the intermetallic compound and carbide co-hardened powder metallurgy high-speed steel by a powder metallurgy method. Theintermetallic compound and carbonitride co-hardened powder metallurgy high-speed steel is obtained by adding specific stable carbonitride and alloy elements and co-strengthening the material by addingthe carbonitride and the in-situ generated intermetallic compound. Due to less carbon in the intermetallic compound and the matrix, the material can keep excellent red hardness and knife sticking resistance, and meanwhile, the addition of the stable high-hardness carbonitride can achieve the effects of obviously refining grains and improving the wear resistance.

The invention relates to a floor type isolated switch cabinet for an overhead line system. The floor type isolated switch cabinet comprises a stainless steel sealed box, wherein the interior of the stainless steel sealed box is divided into an upper part and a lower part through a partition plate; the upper part is a high-voltage chamber, and the lower part is a control chamber; an air insulation inner cone slide-in cable socket, an electric isolating switch and a supporting insulator are installed in the high-voltage chamber; an electric/manual operating mechanism, an overhead line system isolating switch monitoring device and a high-voltage charged sensor are arranged in the control chamber. The floor type isolated switch cabinet disclosed by the invention is mainly applied to circuits among various sectioned power supply parts in an electrified railway on-off overhead line system in a strong wind area, the power supply flexibility is increased, potential safety hazards are eliminated, the switch body is filled in the closed box, the box is installed at the column bottom, the strong wind speed-increasing area is avoided, sand erosion is avoided, and the reliability of equipment operations is comprehensively improved.

The embodiment of the invention discloses an application control method and device, and a mobile terminal. The method comprises the following steps of: obtaining a set of applications with multiple operated accounts, wherein the set of applications with multiple operated accounts comprises a main application and copy applications of the main application; detecting an identification selection instruction which acts on a main application icon or a main application interface by a user; and according to the identification selection instruction, starting the corresponding main application or the copy applications of the main application. By use of the technical scheme provided by the embodiment of the invention, according to the identification selection instruction which acts on the main application icon or the main application interface by the user, the corresponding main application and the corresponding copy applications are started, so that a starting operation for the main application or the copy applications can be realized in a way that only one main application icon needs to be established on a terminal desktop, an existing application control technology is optimized, and the problems in the prior art that a plurality of copy application icons occupy a large desktop space and the mobile terminal desktop is not tidy since the plurality of copy application icons are established in addition to a situation that the main application icon is established on the desktop are solved.

The invention provides a wind power converter bridge arm multiplex reconstruction control method and system. After a fault occurs, a two-way switch tube on a fault phase is switched on, and a converter enters a bridge arm multiplex reconstruction mode; a network side converter adopts voltage directional control, a machine side converter adopts magnetic field directional control, and three-phase voltage at a machine side and a network side is given; a zero-sequence voltage injection PWM method is used, the given three-phase voltage of the machine side and the network side is converted into modulation voltage of each normal phase bridge arm, and bridge arm multiplex reconstruction control is achieved. A two-way switch is additionally arranged to achieve bridge arm multiplexing, and the control technology of the converter is optimized to achieve bridge arm fault reconstruction control; the reconstruction operation of any bridge arm fault can be achieved, the fault tolerance range is wide,and the response speed is high.

A control method for coiling steel scrap caused by the deviation of the exit head of finishing rolling, comprising the following steps: (1), after the strip steel is rolled out from the stand of the finishing rolling mill, after the flatness detection equipment detects the shape of the strip, it is sent into the Coiling position; (2), according to the detection data in the step (1), determine the offset degree of the finishing head; (3), determine whether to issue an opening adjustment command according to the numerical value of the offset degree in the step (2); (4 ), set the opening of the side guide plate to the specified value according to the issued opening adjustment command. The control method not only improves work efficiency and reduces manual intervention; it also avoids wrong intervention and reduces human errors; and effectively reduces accidents of coiling scrap steel.

The embodiment of the invention discloses a control method and device for a virtual reality all-in-one machine. The method includes: the virtual reality all-in-one machine acquires the user's target gesture information collected through the bracelet; the virtual reality all-in-one machine executes an operation associated with the target gesture information according to the target gesture information. The technical solution provided by the embodiment of the present invention uses a virtual reality all-in-one machine to collect the user's gesture information through the bracelet, and executes operations associated with the gesture information according to the technical means, which solves the problems in the prior art. When the user needs to perform certain operations after fixing the virtual reality all-in-one machine, he needs to take off the virtual reality all-in-one machine, resulting in the technical problem that the control operation of the virtual reality all-in-one machine is not convenient and intelligent enough, and optimizes the existing all-in-one virtual reality Machine control technology meets people's growing demand for personalized and convenient virtual reality all-in-one machine control.

The embodiment of the invention discloses a method and a device for controlling the restart of loudspeaker boxes, a mobile terminal, a loudspeaker box and a system. The method comprises the steps of acquiring a restart command which acts on the mobile terminal and is used for restarting at least two loudspeaker boxes to be restarted in a wireless mesh network; and sending the restart command to a current main loudspeaker box in the wireless mesh network, thus allowing the current main loudspeaker box to restart the at least two loudspeaker boxes to be restarted according to the restart command. According to the method provided by the invention, the technical problem that in the prior art, the restart efficiency of the loudspeaker boxes is low due to the fact that only one loudspeaker box can be controlled for restarting and each loudspeaker box needs to be restarted respectively when a plurality of loudspeaker boxes needs to be restarted is solved, the existing loudspeaker box restart control technologies are optimized, and the individual and convenient control requirement on the restart of the loudspeakers is met.

The invention relates to nanometer agglomerated disc-like mordenite with different densities. In the prior art, the aggregation density between the nanometer crystals is different when nanometer agglomerated disc-like mordenite spontaneously aggregates to form the special morphology during hydrothermal crystallization. A purpose of the present invention is to mainly overcome the problem in the prior art. The technical scheme comprises that mordenite with a MOR configuration crystallized product is used, the single nanometer mordenite is a short columnar crystal, the three-dimensional size is between 50-600 nm, and the components for glue forming and the hydrothermal crystallization conditions are controlled. With the technical scheme, the problem in the prior art is well solved. Accordingto the present invention, the nanometer agglomerated disc-like mordenite with different densities can be efficiently synthesized.

The invention belongs to the field of preparation of inorganic nano-materials, and discloses a creased titanium dioxide fiber loaded nanometer silver phosphate composite material and a preparation method thereof. TiO2/Ag3PO4 composite nano-fibers are prepared by a surfactant-assisted impregnation technology. The preparation method comprises the following steps: dispersing creased TiO2 fibers in deionized water, adding certain amounts of a surfactant and a silver source in proportion, and performing ultrasonic dispersion to obtain a solution A; weighing a phosphorus source according to a stoichiometric ratio, dissolving the phosphorus source in deionized water, and performing stirring to obtain a solution B; and adding the solution B to the solution A, performing stirring in a shady place,filtering the obtained solution, washing the obtained material, and drying the washed material in an oven to obtain the TiO2/Ag3PO4 composite nano-fibers. In the obtained TiO2/Ag3PO4 composite nano-fibers, Ag3PO4 particles are uniformly supported on the surface of the TiO2 fibers, and the size of the particles is about 10-20 nm. The light absorption waveband of TiO2 is broadened to the visible light region. The composite material has the advantages of simple preparation process, low cost and controllable morphology and size, and is expected to be widely used in catalytic degradation of organicpollutants.

The invention provides a synthesis method of a nanometer needle-like ZSM-11 and a mixed-crystal molecular sieve thereof. According to the method, the nanometer needle-like morphology of a ZSM-11 molecular sieve is realized through measures such as aging treatment of a synthetic liquid and successive addition of two synthesis assistants, and the mixed-crystal molecular sieve with the nanometer needle-like morphology containing a ZSM-11 crystal phase can be prepared by adding an induction seed crystal into the synthetic liquid. Compared with a conventional ZSM-11 molecular sieve, the ZSM-11 andthe mixed-crystal molecular sieve prepared by using the method have the advantage of obviously shorter intragranular micropore diffusion path.

The embodiment of the invention discloses a rotary camera control method and device, and a mobile terminal. The method comprises: when it is detected that an access device is accessed into a current mobile terminal, it is determined that the access device is a self-timer auxiliary device or not; and when the access device is a self-timer auxiliary device, the rotary camera of the current mobile terminal is controlled to rotate to the front side of the current mobile terminal. According to the technical scheme provided by the embodiment of the invention, when it is detected that the current access device is a self-timer auxiliary device through a mobile terminal, and the rotary camera of the mobile terminal is controlled to rotate to the front side of the mobile terminal, so that the technical problems are solved that users need to mutually rotate the rotary camera of the mobile terminal to the front side of the mobile terminal for photographing self to cause the complex self-timer and low intelligent degree of the self-timer after the self-timer auxiliary device is accessed into the mobile terminal in the prior art; and moreover, the rotary camera control technology in the prior art is optimized, and the people's control requirement of a customized and convenient rotary camera are satisfied.

Embodiments of the present invention disclose a method and an apparatus for controlling a playing apparatus. The method comprises: acquiring a current control state of a set item upon receiving a control request of the set item of the playing apparatus from a current intelligent terminal; based on the current control state, controlling the set item according to the control request. The technical scheme provided by the embodiments of the invention solves the technical problems of disorder of speaker operation and unstable control display interfaces, corresponding to the set item, on intelligent terminals when the plurality of intelligent terminals control the same speaker at the same time in the prior art, optimizes existing playing device controlling technology and realizes reasonable control of the playing device.

The invention discloses a formula based on separation and extraction of bakuchiol and an industrial production method thereof. The method comprises the following steps: firstly, performing supercritical extraction on a raw medicinal material to prepare an oily substance, then stirring an oily sample, prepared according to a ratio of a column mass ratio to a sample of 13.3: 1, with an eluent according to a mass ratio of 1/3, uniformly loading the oily sample, and then allowing the oily sample to slowly flow into a dry surface of silica gel along a stirring rod; conducting pressing at a speed of 0.02 column volume per minute to infiltrate the silica gel surface, performing flushing with an eluent having a sample mass ratio of petroleum ether to ethyl acetate of 3:1, and repeatedly adjusting a flow rate according to a polarity principle to separate the sample; and finally, adding an antioxidant, adding 1.5-2.0% of a decolorizing substance according to the properties of the sample, conducting repeated decolorizing at 50 DEG C two times, and finally, conducting concentrating until no solvent smell exists to obtain a red transparent substance. According to the invention, a control technology in the pretreatment and posttreatment of samples and in an experiment process is optimized, and the purposes of reducing cost and greatly improving yield and purity can be achieved.

The invention relates to a microwave absorbent based on synergistic coupling protection and a preparation method thereof. The preparation method takes ferrite fiber as a carrier to load barium titanate nanoparticles and comprises the following specific preparation steps that metal salt and polyvinylpyrrolidone are dissolved in an ethanol solution, and the ferrite fibers are prepared through a sol electrospinning charge high-temperature calcination technology; and soluble barium salt and tetrabutyl titanate are added into an organic solvent, a surfactant is added, and solvothermal reaction is conducted at 150-180 DEG C to obtain the ferrite and barium titanate composite fiber material. The preparation method has the characteristics of wide raw material source, low cost and excellent performance, the preparation technology is simple and easy to control, and industrial production is easy to realize.