36results about How to "Meet the needs of technological development" patented technology

The invention relates to an intelligent impedance matching device of an LC resonant antenna. With the intelligent impedance matching device adopted, problems such as manual matching, long time matching, complicated process and low precision in an existing antenna impedance matching method can be solved. The intelligent impedance matching device includes the LC resonant antenna, an adjustable matching circuit unit, a test circuit unit and a micro controller; a planar spiral inductor and a parallel plate capacitor are connected in series so as to form the LC resonant antenna; the adjustable matching circuit unit includes an inductor, a first adjustable capacitor array and a second adjustable capacitor array which are in pi-shaped impedance matching network connection; the test circuit unit includes a signal generator; a Wheatstone bridge is connected between two ends of the signal generator; and four bridge arms of the Wheatstone bridge respectively are a first resistor, a second resistor, a third resistor and the adjustable matching circuit unit. The intelligent impedance matching device of the invention has the advantages of high matching efficiency, short matching time, simple matching process, high matching precision and low cost, and can be greatly adaptive to the development of some handheld RF devices.

The invention discloses a file encryption method, which comprises the steps of generating an initial password; reading data to be encrypted in a file; acquiring the length of encrypted data in the file, and calculating an encrypted password based on the initial password and the length of the encryption data; and performing encryption on the data to be encrypted by using the encryption password so as to acquire encrypted data. Each byte in the file is encrypted through the encryption password. Compared with a traditional encryption method, the file encryption method disclosed by the invention improves the difficulty of password cracking to a great extent and improves the data security.

The invention discloses a radial foil-free diode guiding magnetic field system which mainly solves the problems that in the prior art, the difficulty of implementation of electron beam transmission guiding is large, the size is large, the weight is heavy, the power consumption is high, the manufacturing cost is high, and the technological development requirements cannot be met. The radial foil-free diode guiding magnetic field system comprises a negative pole supporting rod (1), a transmission disc, a radial transmission wire (4), a first positive pole wall (2), a second positive pole wall (8) and a third positive pole wall (9), wherein the negative pole supporting rod (1) is formed by cylindrical conductors, the position below one side of the transmission disc is connected with the negative pole supporting rod (1), the transmission disc is formed by disc conductors, the radial transmission wire (4) is located right above the transmission disc, the first positive pole wall (2) and the second positive pole wall (8) are connected to the two sides of one end, which is closest to the transmission disc, of the radial transmission wire (4) respectively, the third positive pole wall (9) is located on the outer side of the transmission disc, and one end of the third positive pole wall (9) is connected with the other end, opposite to one end connected with the first positive pole wall (2) or the second positive pole wall (8), of the radial transmission wire (4). By means of the technical scheme, the radial foil-free diode guiding magnetic field system is easy to implement, achieves the aim of meeting the technological development requirements and has the high practical value and the high promotional value.

The invention discloses a multifunctional modularized particle accelerator material radiation sample holder, which belongs to the technical field of particle accelerator material radiation sample holders. The sample holder comprises a sample base, wherein the sample base is provided with a mechanical stretching module, a mechanical compression and TEM (Transmission Electron Microscopy) module, a radiation injection volume module and a radiation angle module; and the mechanical stretching module, the mechanical compression and TEM module, the radiation injection volume module and the radiationangle module are distributed in a matts form in sequence. By use of the sample holder, the radiation of multiple samples can be provided in one time, and radiation experiment time and sample consumption can be saved. By use of the sample holder, conventional mechanical experiment samples and TEM samples are organically combined with a radiation condition change sample, a great quantity of radiation sample data can be obtained in one time, material radiation damage differences caused by same parameter regulation setting and an unstable accelerator beam current state can be avoided, and result consistency is higher.

The invention discloses a hydrogenation pretreatment method of coal tar, which is mainly used for solving the problems that the metal content in whole fraction of the coal tar in the prior art is very high, the operation period of a main hydrogenation device is strictly restricted, and the sustained development of hydrogen processing is hindered. The hydrogenation pretreatment method of the coal tar comprises the following steps of mixing the coal tar with hydrogen at relatively low reaction pressure, then firstly introducing a mixture into a slurry bed hydrogenation reactor at high temperature and high air speed, then introducing into a fixed bed hydrogenation reactor at low temperature and low air speed, and finally introducing into a gas-liquid separation system for separation. Through the scheme, the purposes of effectively ensuring the long-period operation of the main hydrogenation device and the sustained development of hydrogen processing are achieved, and the method further has very high practical application and popularization values.

The invention discloses a method and an electronic device for providing popular programs. The method is used for guiding a user of the electronic device to select the popular programs, transmitting information of the programs selected by the user to a central processing unit, then receiving gathered collective intelligence data from the central processing unit, and finally displaying the gathered collective intelligence data for an individual user in a user group, wherein the data comprises information of the programs selected by a plurality of users. The method adopts the technical proposal that the method provides guide for watching the popular programs for the users in a watching environment with a plurality of programs, and effectively meets the requirement of the prior media technology development.

The invention discloses a new energy electric power reduction panorama analytic system and a method. The new energy electric power reduction panorama analytic system comprises an input module, an electric system generator set maintenance plan module, a random production imitating and starting composite module, a peak modulation analytic module, a frequency modulation analytic module, a panorama type new energy reduction scale calculating module and an output module. According to the new energy electric power reduction panorama analytic system, an omnibus new energy electric power large-scale development reduction panorama analytic processing platform is constructed, generation models using new energy sources such as wind power are embedded into an electric power system maintenance plan, random production imitating and starting composite calculation, peak modulation analysis, frequency modulation analysis and new energy reduction scale calculation, a comprehensive evaluation system and a method for the new energy electric system are constructed, and the system covers systematic planning, operation, scheduling and stages of a year, a week, a month, a day, a minute (in) and is used for analyzing the consumption of new energy wind power grid combination in large scales in an all-around and all-time mode.

The invention discloses a fine alignment algorithm based on an AHRS (Attitude and Heading Reference System), which mainly solves the problem that the fine alignment technology in the prior art is low in convergence speed and not high in error estimation precision and can not meet demands of people. According to the fine alignment algorithm based on an AHRS, the error of an attitude angle is solved through Kalman filtering by taking outputs of an accelerometer in two directions and outputs of a gyroscope in three directions as observed values, thus performing fine alignment. According to the scheme, the algorithm achieves the purposes of high convergence speed and high precision, and has very high practical value and popularization value.

The invention relates to a system and method for carrying out global information transmission by utilizing a navigation satellite. Information transmission is carried out by utilizing the existing navigation telegraph message transmission system of the navigation satellite; on the premise of not changing a navigation telegraph message transmission format and a transmission rate, an information injection hidden transmitter is additionally arranged in the front of a navigation telegraph message transmitter; hidden transmission of user data is realized based on an information hiding method; normal use of a navigation positioning satellite system is not influenced; the practical functions of the navigation positioning satellite system are expanded; multiplexing of a navigation satellite channel is realized; a broadcast communication manner facing to the coverage area of the navigation satellite is also provided; by means of the system, any individual user can receive information through a commercial civilian navigation satellite user receiver; any hardware cost is nearly unnecessary; and for example, real-time and non-real-time text transmission and non-real-time image transmission can be provided in border areas, foreign travel areas, areas without other communication manners and areas, where communication manners are inconvenient to use.

The invention belongs to the field of high-power microwaves, and discloses a magnetic field structure of an integrated segmented internal and external saw-toothed special-shaped section solenoid. The magnetic field structure comprises an integrated segmented solenoid skeleton, wherein the integrated segmented solenoid skeleton includes a segmented front solenoid and a segmented rear solenoid, and an inserted waveguide slot is formed in the segmented part of the segmented front solenoid and the segmented rear solenoid; a coil package is wound on the surface of the integrated segmented solenoid skeleton, an insulated support gasket is arranged between the surface of the integrated segmented solenoid skeleton and the coil package, and the insulated support gasket is arranged in the coil package. According to the magnetic field structure disclosed by the invention, by adopting the internal and external saw-toothed solenoid winding area, high field strength can be provided, a high-uniformity magnetic field can also be provided at the segmented part, and meanwhile, the range of homogeneous areas can be enlarged; and by adopting the integrated mechanical design, the feeding waveguide can be inserted into the homogeneous area, and convenient assembly can be achieved.

The invention discloses a heuristic type behavioral parameter analysis algorithm, which mainly solves the problems that in the prior art, the false alarm rate of judging risk by a static heuristic method is relatively high, and the needs of people cannot be met. The heuristic type behavioral parameter analysis algorithm comprises the following steps of recurring a disk traversing file, and filtering a non-PE formatted file; establishing a rule base which is matched with a parsing engine, carrying out static heuristic analysis on all PE formatted files by using the parsing engine, and summarizing and calculating malicious weight numbers of all suspicious acts of the PE formatted files; calculating a heuristic alarm threshold value basing on a Liapunov central-limit theorem; judging whether the malicious weight numbers of the PE formatted file are higher than an alarm threshold value or not, carrying out alarm on the PE formatted files if so, and carrying out file traversing again until the file traversing is over if not. Through the technical scheme, according to the heuristic type behavioral parameter analysis algorithm disclosed by the invention, the purposes of flexibly adjusting scan sensitivity and reducing the false alarm rate are achieved, and the practical value and the promotion value are very high.

The invention relates to a manufacturing method of functional vacuum glass, which comprises the following steps: (1) placing vacuum glass on an operating console, and uniformly placing supports on the upper surface of the vacuum glass at intervals; (2) placing a frame at four sides of the vacuum glass, wherein the upper end surface and the lower end surface of the frame is uniformly coated with low-melting glass powder; (3) forming at least one through hole communicated with a cavity in the frame, placing a glass tube on the through hole, and filling glass powder at the periphery of the glass tube; (4) laminating plate glass and the vacuum glass; and (5) placing into a heating furnace, heating to 300-500 DEG C to melt the low-melting glass, cooling, and then sealing to form the functional vacuum glass provided with the glass tube and the hollow sealing cavity. According to the invention, the vacuum glass is organically combined with the functional glass to form combined glass, thereby achieving high sound insulation and heat insulation effects of the vacuum glass and properties of the hollow glass and functional glass, and widening the technical field of glass.

The invention discloses a D2D communication system based on network coding and relaying and an achieving method of the D2D communication system. The D2D communication system mainly solves the problems that a communication mode in the prior art has limit to communication radius and communication power, and the communication quality is not high. The D2D communication system based on the network coding and relaying comprises a signal receiving system and a signal sending system corresponding to the signal receiving system, wherein the signal receiving system comprises a receiving mode judger, a time slot judger, a best judger, a demodulator and a channel decoder which are connected in sequence; the signal sending system comprises a network coder, a sending mode judger, a channel coder and a modulator which are connected in sequence. Through the proposal, the D2D communication system achieves the purpose of expanding communication radius and improving communication power and communication quality, and has a very high practical value and a promotional value.

The invention discloses and provides acquisition control equipment which is reasonable in design, saves the cost, improves the application efficiency, reduces the project implementation complexity andcan realize large-quantity data acquisition. The equipment comprises a data acquisition host (1) and at least one acquisition module (2); the data acquisition host (1) is connected with the acquisition modules (2); each acquisition module (2) is connected with at least one sensor (3); the data acquisition host (1) is in wired or wireless connection with the at least one acquisition module (2). The invention belongs to the field of data acquisition.

The invention belongs to the technical field of underwater submersibles, and in particular relates to a buoyancy adjusting device based on a sea water pump. The device includes a half-meter ball device and a half-meter ball device and an electro-hydraulic control part, wherein the half-meter ball device includes a spherical shell, an oil barrel, a multi-stage cylinder, a piston, a displacement sensor and an inner chamber. The inner chamber further includes a sea water chamber and an air chamber. The electro-hydraulic control part includes a solenoid valve, a filling valve, an electromagnetic reversing valve, the sea water pump, a drive controller, a motor, safety valves, a solenoid valve, a throttle orifice, a filter, a check valve, a solenoid valve, a filter and a check valve. The half-meter ball device and the electro-hydraulic control part are connected through two pipes, one pipe is communicated with the sea water chamber in the spherical shell, and the other pipe is communicated with the inner chamber. The buoyancy adjusting device based on the sea water pump is used for accurately regulating buoyancy which the underwater submersibles such as a UUV are subjected to, and the accuracy, environmental protection and space utilization rate of the buoyancy adjusting device are improved.

The invention discloses novel vacuum coating equipment combining double evaporation sources and a plasma coating source, which comprises a vacuum chamber, an unwinding system and a winding system which are arranged in the vacuum chamber, double coating rollers are arranged between the unwinding system and the winding system, and a gas separation plate is arranged in the vacuum chamber. The gas separation plate divides the interior of the vacuum chamber into a plasma coating source chamber and an evaporation coating chamber, the double coating rollers are arranged in the plasma coating source chamber, and a film base material is output from the unwinding system, enters the plasma coating source chamber and the evaporation coating chamber, bypasses the double coating rollers and then is rewound on the winding system. According to the novel vacuum coating equipment combined with the double evaporation sources and the plasma coating source, composite evaporation coating and plasma coating source film forming are integrated, the coating mode that plasma coating source film forming and thermal evaporation are alternated is achieved, the uniformity and binding force of a film layer are improved, coating is conducted in a reciprocating mode, and the coating efficiency is improved. The deposition of the coating thickness is accelerated, and the coating speed and the production efficiency are improved.

The invention discloses an eight-frequency band reconfigurable intelligent mobile phone antenna, and mainly solves the problems of failure in designing a small-size, low-section and multiple-frequency wideband intelligent mobile phone antenna in a given environment in the prior art, and failure in meeting the technical development requirement. The eight-frequency band reconfigurable intelligent mobile phone antenna comprises a housing, a dielectric plate in the housing, a metal plate on one surface of the dielectric plate, and further comprises a second bent metal strip group and a first bent metal strip group, wherein both the second bent metal strip group and the first bent metal strip group are arranged on the other surface of the dielectric plate; a feeding point (1) is connected to the first bent metal strip group; the first bent metal strip group as well as the second bent metal strip group comprises at least two metal strips, a diode, a patch inductor and a patch capacitor; the diode, the patch inductor and the patch capacitor are connected between the metal strips. According to the scheme, the purposes of miniaturization, eight working frequency covering capability and higher performance-price ratio are realized; the utility value and the popularization value are higher.

The invention belongs to the field of high-power microwaves, and discloses a magnetic field structure of an integrated segmented internal and external saw-toothed special-shaped section solenoid. The magnetic field structure comprises an integrated segmented solenoid skeleton, wherein the integrated segmented solenoid skeleton includes a segmented front solenoid and a segmented rear solenoid, and an inserted waveguide slot is formed in the segmented part of the segmented front solenoid and the segmented rear solenoid; a coil package is wound on the surface of the integrated segmented solenoid skeleton, an insulated support gasket is arranged between the surface of the integrated segmented solenoid skeleton and the coil package, and the insulated support gasket is arranged in the coil package. According to the magnetic field structure disclosed by the invention, by adopting the internal and external saw-toothed solenoid winding area, high field strength can be provided, a high-uniformity magnetic field can also be provided at the segmented part, and meanwhile, the range of homogeneous areas can be enlarged; and by adopting the integrated mechanical design, the feeding waveguide can be inserted into the homogeneous area, and convenient assembly can be achieved.

The invention discloses a fast-response redundant membrane type thermocouple, comprising a stagnation cover. An air inlet is formed in one side of the stagnation cover; an air outlet is formed in theupper end of the stagnation cover; and a connecting seat is installed at one side of stagnation cover. A connecting port is formed in the connecting seat. A fixed base is arranged in the inner cavityof the stagnation cover; and one end of the fixed seat is connected with one side of the connecting seat. The space between the two sides of the fixed seat and the inner side of the stagnation cover is filled with high temperature cement. A lead protection tube is arranged inside the fixed seat; and a lead penetrates the inside of the lead protection tube. A sandwich structure is connected to theother end of the fixed seat and is connected with a lead. On the basis of the novel structure, the thermocouple has advantages of fast sensor response, large temperature measurement range, and high measurement precision. The necessary testing way is provided for domestication of the existing new-generation high-power combustion gas turbine; and the demand of development of the combustion gas turbine technology is satisfied.

The invention discloses a high-power radial line sealed window which mainly solves the problem in the prior art that a mature sealed window aiming at a radial line is lacked and technical development requirements cannot be met. The high-power radial line sealed window comprises a radial line upper plate, a radial line lower plate, a radial line installed between the radial line upper plate and the radial line lower plate, a coaxial waveguide vertically connected with the radial line lower plate, a conversion cone with the upper end fixed on the radial line upper plate and a ceramic ring located between the radial line upper plate and the radial line lower plate, on the outer side of the conversion cone and coaxial with the coaxial waveguide. An inner conductor is arranged in the coaxial waveguide at the center position, and the inner conductor is connected with the lower end of the conversion cone. By means of the scheme, the window achieves the aims of being small in reflection, high in transmission efficiency, high in power volume and suitable for the radial line, and has high practical value and popularization value.