98results about How to "Guaranteed achievability" patented technology

The invention relates to a novel microwave rotary joint which comprises two wave guide coaxial converters, and both of the wave guide coaxial converters comprise a rectangular wave guide and coaxial structure, and the coaxial structure is arranged on a broad side axis line of the rectangular wave guide; the coaxial structure of the two wave guide coaxial converters has the same coaxial line and both of the wave guide coaxial converters are rotated around the coaxial line; the coaxial line is matched with impedances of the two rectangular wave guides; the coaxial line comprises a coaxial inner conductor and two coaxial outer conductors; a support medium is arranged between the coaxial outer conductors and the coaxial inner conductor; a ridge wave guide is arranged in the rectangular wave guide of the wave guide coaxial converter one; one end of the coaxial inner conductor is extended into a rectangular wave guide cavity one and is fixed on the ridge wave guide; the ridge wave guide and the rectangular wave guide one are transformed and transmitted through a multi-stage ladder; the other end of the coaxial inner conductor is extended into a rectangular wave guide cavity two and is not contacted with the wave guide wall; the other end of the coaxial inner conductor is provided with a matched end head; and a buckling position of the two coaxial outer conductors is provided with a choke groove. The novel microwave rotary joint has broad bandwidth and good and stable performance, and is suitable for every frequency band from L to Ka.

The invention discloses a rotatable double-antenna PARC (polarimetric active radar calibrator) and a polarimetric active radar calibration method thereof. According to the PARC, polarization filters are additionally mounted at apertures of a receiving antenna and a transmitting antenna; the rotatable double-antenna design is adopted, and different posture combinations of the receiving antenna and the transmitting antenna can form different polarization combinations. Each antenna of the designed rotatable double-antenna PARC can rotate independently, the receiving antenna and the transmitting antenna of the PARC are controlled to be combined in different polarization manners, and multiple forms of polarimetric scattering matrixes of the PARC can be obtained. During mounting of the PARC, the delay parameter is adjusted, and a rotating mechanism is controlled, and the PARC rotates at constant and slow speeds, and any to-be-calibrated objects can be calibrated. The polarization filters are additionally mounted at the apertures of the antennas, so that the polarimetric isolation of each of the receiving antenna and the transmitting antenna can be greatly increased, and the polarimetric calibration accuracy is improved.

The invention discloses a touch display screen and a touch display device. The touch display screen comprises an array substrate, a color film substrate, a group of first electrode lines, a group of second electrode lines and high-resistance transparent conductive shielding layers, wherein the array substrate and the color film substrate are symmetrically arranged; the group of first electrode lines is arranged on the array substrate or the color film substrate; the group of second electrode lines is arranged on the array substrate or the color film substrate and is in intersection arrangement with the group of first electrode lines; and the high-resistance transparent conductive shielding layers are arranged on the color film substrate and are positioned on the group of first electrode lines and the group of second electrode lines. The resistance value of the high-resistance transparent conductive shielding layers is higher, thus projection electric field signals between the first electrode lines and the second electrode lines can pass through the high-resistance transparent conductive shielding layers, and the implementability of touch operation is ensured; and in addition, the transparent conductive shielding layers per se have conductivity, when a display screen is touched by external static electricity, electrostatic charges can be quickly led out and connected with the ground by the transparent conductive shielding layers, the electrostatic damage to the display screen due to the electrostatic charges can be prevented, and the display effect is further increased.

The invention discloses an analog and digital mixed precoding mode based on a codebook. According to the method, through using analog code training, equivalent channel information can be effectively obtained, thus the optimization problem of NP-hard of analog code selection and digital precoding is converted into the optimization problem of sparse digital precoding, according to the optimized digital precoding matrix, the analog precoding code of each link is mapped, and finally the mixed precoding of analog precoding and diginal precoding is realized. The near optimal system performance can be obtained, the system complexity is reduced, the energy efficiency is improved, and the realization of the system is ensured.

The invention discloses a method for improving the on-orbit performance of an SAR satellite based on electromechanical combined scanning, and the method comprises the steps: setting a moment when the Doppler frequency of the echo of the center of an imaging scene is zero as an imaging center moment; setting ground aiming points of the azimuth at different moments; calculating an instantaneous echo time range according to the range of the slope distance between the satellite and a scene; selecting a proper pulse repetition rate; determining the scanning range of an antenna according to the electric scanning capability of the satellite antenna; calculating the number of residence pulses according to the electric scanning range and a beam scanning step value; calculating the electric scanning angles of the antenna at all the time points according to the constant-speed scanning law; calculating an attitude angle required by the instantaneous imaging according to the instantaneous ephemeris data, the ground aiming points and the electric scanning angles of the antenna at instantaneous moments through employing a vector method; judging whether a satellite control system can meet the above attitude demands or not; and completing the parameter design. Therefore, the method achieves the overall improvement of the image performances of an on-orbit phased-array system SAR satellite in the mode of electromechanical combined scanning.

The invention relates to an integrated identification network personal communication mobile management method based on double-proxy, belonging to the technical field of personal mobile network communications. The method is characterized in that the separation of a user side and a network side is realized by utilizing a double-proxy structure under the condition of an integrated identification network system, and the separation of a user and terminal service is finished through from client proxy identification to access identification analyzing and mapping. The method comprises the working process of communication link establishment and service switching under the condition of the integrated identification network system; a client proxy, a network proxy and all modules inside the client proxy and the network client works together with respective specific task; and an access user, terminal equipment and service resources are under unified classified management . The invention not only can shorten routing and time delay, but also has favorable expandability and can effectively reduce the difficulty of network resource management.

The invention provides a calculating method of picture taking cycles of a panorama type aerial camera, and belongs to the technical field of aerial cameras. The calculating method solves the problems that a calculated picture taking cycle can not be realized and picture taking cycle calculation is not accurate due to the fact that the coverage width index requirement is not considered and the scanning angle is too large. An upper boundary value of a half scanning field angle beta is determined according to a target slant angle, and a lower boundary value of the half scanning field angle beta is determined according to the coverage width index requirement. The range R of beta is divided into n discrete values with the same step length, and the largest value thetamaxj of the depression angle and a picture taking cycle Tj in the scanning process are calculated. In the calculating process, a coverage width condition equation is introduced, and the picture taking cycle is made to meet the coverage width requirement; a constraint equation of position holding time thold is introduced, and realizability of the calculated picture taking cycle is guaranteed; in the calculating process, an equal-step-length discrete value sequence is extracted from the continuous range of the half scanning field angle beta, iteration solution of the picture taking cycle is carried out according to the equal-step-length discrete value sequence, and calculation complexity is lowered.

The invention discloses a model-free boiler combustion optical control method based on numerical optimization extremum searching. The model-free boiler combustion optical control method based on numerical optimization extremum searching includes the steps that 1, the boiler efficiency eta (j) of a boiler combustion system and the nitric oxide emission value NOx (j) at all moments in a time window from the moment (k-n) to the moment k are collected, and an allowable error epsilon is set; 2, the average value eta of the boiler efficiency and the average value NOx of the nitric oxide emission value within the time window from the moment (k-n) to the moment k are worked out, and eta and NOx are used as the boiler efficiency and the nitric oxide emission value of the current moment k; 3, the boiler efficiency eta and the nitric oxide emission value Nox of the current moment k are subjected to normalization, and a single-goal function J(k) is worked out; 4, the change gradient gk of performance indexes along all layers of operation quantities; 5, the search direction dk is worked out; 6, the step length factor ak is worked out; 7, the operation quantity ui(k+1) to be optimized the next moment is worked out; and 8, the steps 2-7 are conducted repeatedly till algorithm convergence, and then the optimal operation quantity is obtained.

The invention provides a balanced type frequency tripler structure of a substrate integrated waveguide (SIW). An SIW bridge is used at the output end of a balanced type frequency tripler, and a proper SIW width is selected to stop a base band and a secondary harmonic, thereby ensuring that the energies of the basic wave and the secondary harmonic can be reflected back to a field effective tube for reusing without adding any harmonic reflection unexpected difficulties; the guided wave length of the SIW bridge is properly adjusted, so that the base band and the secondary harmonic can be inhibited to reach a requirement, and the harmonic inhibiting index can be met without the addition of a harmonic inhibiting filter at the output end. The balanced type frequency tripler based on the design thought has the advantages of high efficiency of frequency multiplication, simple structure, low technological requirement and is applicable to high-frequency section.

The embodiment of the invention discloses an information processing method and terminal equipment. The method is used for respectively configuring respective disk pack resources in a first database and a second database. In the dual-computer switching process, the switching of the service plane floating IP and the switching of the roles of the master database and the slave database are involved, so that the problem of inadaptation between the disk and the databases in the dual-computer switching process is avoided, and the data security is improved. The embodiment of the invention provides a master-slave database switching method, and the method comprises the steps that a first host releases the binding of a first database and a service plane floating IP address under the condition that the first database meets a dual-computer switching condition; the first host switches the first database from the master to the slave; and the first host sends indication information to the second host,and the indication information is used for indicating that the second database is switched from slave to master and starting the service plane floating IP address on the second database.

The invention relates to the field of communication and discloses a method and a device for sharing an input device of a PC (personal computer) with an Android device. The method includes steps that the PC records data of the input device and transmits the data to the Android device; the Android device processes the data through driver programs and implements corresponding operations, the driver programs are preinstalled in the Android device, and the input device is connected with the PC. Accordingly, the Android device can perform corresponding operations by the input device without using input devices with special interfaces. With no needs of practical connection with the input device and outfitting of special interfaces and without need to use the input device with special interfaces, cost of the Android device for use of the input device is reduced, and use range of the input devices for the Android device are broadened.

The invention provides a terahertz low-noise communication system transmit-receive front end based on GaAs monolithic integration, and belongs to the technical field of terahertz wireless communication, the terahertz low-noise communication system transmit-receive front end comprises an intermediate frequency circuit and a terahertz circuit, the terahertz circuit comprises a local oscillator frequency tripler, a local oscillator homodromous 3dB filtering coupler, a radio frequency 180-degree filtering coupler and two terahertz GaAs monolithic integration subharmonic mixers; the local oscillator equidirectional 3 dB filtering coupler and the radio frequency 180-degree filtering coupler comprise an annular cylindrical resonant cavity and four rectangular waveguides, the annular cylindrical resonant cavity is divided into a large fan annular resonant cavity and three small fan annular resonant cavities through four fan annular grooves, and the central angle of the large fan annular resonant cavity is twice that of the small fan annular resonant cavities; and the four rectangular waveguides are correspondingly connected with the four sector-ring-shaped resonant cavities respectively. According to the invention, the local oscillator same-direction 3dB filtering coupler and the radio frequency 180-degree filtering coupler which have coupling and filtering functions are adopted, so that the low local oscillator noise suppression transceiving front end is realized.

The invention discloses a method for executing matrix multiplication, and belongs to the field of data processing. The method comprises the following steps: acquiring a matrix A1, a matrix B2 and an index matrix; generating n matrixes A2 according to the index matrix and the matrix A1, wherein the n matrixes A2 are in one-to-one correspondence with n columns of the index matrix in sequence, t columns of each matrix A2 are in one-to-one correspondence with t elements of one column in the corresponding index matrix in sequence, and each column of each matrix A2 is a column indicated by one element in the corresponding index matrix in the matrix A1; and generating a matrix C according to the n matrixes A2 and B2, wherein n columns of the matrix C are in one-to-one correspondence with the n matrixes A2 in sequence, n columns of the matrix C are in one-to-one correspondence with n columns of the matrix B2 in sequence, and each column of the matrix C is the product of one corresponding matrix A2 and one corresponding column of the matrix B2. The matrix multiplication operation can be completed only by reading the data from the matrix A1 once, and the maximization of data reusability is realized.

The invention relates to a hardware-in-the-loop simulation system for antiepileptic electrical stimulation. The simulation system comprises an epileptic electroencephalogram real-time generator, a signal acquisition module, an electrical stimulation controller and an upper computer. The epileptic electroencephalogram real-time generator converts an input epileptic electroencephalogram signal into an epileptic sample discharge signal through a data driving identification strategy and embedded implementation of a model, then signal acquisition and processing are performed, epileptiform discharge of a personalized neural cluster model is suppressed through a PI closed-loop control strategy based on an unscented Kalman filter, program flows of all the modules are achieved through C language programming, compiled and downloaded into a DSP, communication between an upper computer and the electrical stimulation controller is completed through a LabVIEW platform, the upper computer is mainly used for data communication and waveform display, and the display control effect is achieved. The simulation system has the advantages that real-time simulation verification of an electrical stimulation closed-loop control strategy is achieved, and an important promotion effect is achieved on epilepsy closed-loop control clinics.

The invention discloses an intelligent mechanical arm convenient to move. The intelligent mechanical arm convenient to move comprises a base, a stand column, shaft joints, a control device and a remote controller; a storage box is arranged on one side of the stand column; the shaft joints are rotationally connected pairwise; an extension control mechanism is arranged in the connecting place of two shaft joints; the remote controller and the control device are in wireless communicating connection; a driving control module, an actuation control module, an extension control module, a warning control module, a remote controller control module and a central control module are arranged in the control device; the remote controller control module is connected with the remote controller; and the driving control module, the actuation control module, the extension control module, the warning control module and the remote controller control module are all connected with the central control module. The intelligent mechanical arm convenient to move realizes one-key control through the remote controller, in particular, controls extension of the shaft joints through the remote controller, and is provided with the extension control mechanism between two shaft joints for realizing a shrinkage function of the shaft joints to conveniently carry and move the mechanical arm.

The invention relates to a boiler flue equal-service-life high-temperature anti-corrosion coating composite material. The material comprises a first nickel-based self-fluxing alloy coating material, asecond nickel-based self-fluxing alloy coating material, a third nickel-based self-fluxing alloy coating material, a medium-temperature and medium-pressure composite coating material, a medium-temperature and secondary-high-pressure or secondary-high-temperature and secondary-high-pressure composite coating material, a high-temperature and high-pressure composite coating material, a cold-sprayingglass fiber reinforced plastic coating and a polyurethane polymer coating. All the coating materials can be used for preparing high-temperature anti-corrosion coatings in different corrosion areas ofa boiler flue independently or in a combined manner, and an equal-service-life high-temperature anti-corrosion boiler flue is obtained. The boiler flue high-temperature anti-corrosion coating prepared from the coating composite material is utilized, measures can be accurately taken by aiming at a specific boiler profile, an equal-service-life corrosion protection method with high cost performanceis provided under the condition that the service life is not shortened, and meanwhile realizability of the process is kept.

The invention provides a terahertz schottky diode. The terahertz schottky diode comprises a gallium arsenide semiconductor substrate, and a high-concentration gallium arsenide-doped layer and a low-concentration gallium arsenide-doped layer which are formed on the gallium arsenide semiconductor substrate in sequence, an ohmic contact cathode and an ohmic contact metal which are formed on the high-concentration gallium arsenide-doped layer, a schottky contact anode formed on the low-concentration gallium arsenide-doped layer, an ohmic contact cathode pressing point formed on the ohmic contact cathode, a schottky contact anode extending pressing point formed on the ohmic contact metal, a schottky contact anode extending pressing point formed on the ohmic contact metal and an overhead electroplating bridge formed on a silicon dioxide layer and a schottky contact anode, wherein the schottky contact anode extending pressing point is connected with the schottky contact anode through theoverhead electroplating bridge. By adopting a schottky diode, the parasitic effect can be reduced, the thermion noise existing in the n+GaAs can be reduced, the discontinuity between the anode pressing point and the overhead electroplating bridge can be reduced, the series resistance of the diode can be reduced, and the integration to the peripheral circuit can be easily achieved by flip chip bonding.

The invention provides a beam failure recovery method and device and a terminal, and the method comprises the steps: judging whether a beam failure recovery process needs to be delayed or not if a terminal in a discontinuous reception (DRX) inactive state has a beam failure; if the beam failure recovery process does not need to be delayed, enabling the terminal to directly initiate the beam failure recovery process; if the beam failure recovery process needs to be delayed to be initiated, determining an initiation moment of the beam failure recovery process and initiating the beam failure recovery process at the initiation moment. According to the method, the specific behavior of the terminal under the condition of beam failure of the terminal in the DRX inactive state can be determined, so the integrity and realizability of a protocol are ensured.

The invention relates to the field of the mobile communication terminal, and discloses a slow clock test method for a mobile communication terminal and a test system of the slow clock test method. The slow clock test method comprises the following steps that in a period that USB (universal serial bus) connection between a test host and the mobile communication terminal is switched on, the test host is used for operating the mobile communication terminal through the USB connection according to a test case; after the USB connection between the test host and a mobile communication terminal to be tested is cut off, the test host is used for judging whether the mobile communication terminal to be tested enters a sleep mode or not; after the mobile communication terminal to be tested enters the sleep mode, a current value provided for the mobile communication terminal to be tested from a programmable constant current supply is obtained, and a slow clock test result of the mobile communication terminal is judged according to the obtained current value. Due to the fact that the current value provided for the mobile communication terminal to be tested from the programmable constant current supply is read in the test, current test precision can be improved. Due to the fact that the mobile communication terminal is operated by the test host via the USB connection, working efficiency is improved.

The invention relates to a rapid electric automobile molding realization method and belongs to the electric automobile production technology field. The method is characterized by comprising steps that 1), a three-dimensional digital model is made according to the selected effect; 2), the digital model is rendered after completion, the digital model is projected in a 1:1 mode, and molding and an integral vehicle proportion are confirmed; 3), after deviation confirmation, clay model making is carried out; 4), keel establishment starts, a foam board is mounted and cut, and clay is coated; 5), correction is carried out; and 6), after the clay model is accomplished, data scanning is carried out to inversely accomplish vehicle appearance curved surface and inner decoration molding design. Through the method, molding can be rapidly and accurately realized, client demands can be further satisfied, molding realizability and accuracy are guaranteed, a development period is shortened, and the method has certain popularization and application values.

The invention relates to a method for realizing surface planarization of a pit-shaped micro-array structure unit through secondary pressing, and belongs to the field of machinery. The machining process of the pit-shaped micro-array structure unit is simulated, that is, a Vickers pressure head is pressed into the surface of a material to form a pit unit with the characteristic size being in the micron order, and due to the effect of force borne by the surface of the material, a protruding phenomenon can be formed on the periphery of a pit and exists along with residual stress. In order to flatten the surface and reduce the residual stress of the surface, a cubic angle pressing needle is used for vertically pressing the side faces of the pit units with the feature sizes of micron order to form indentations with the feature sizes of nano order to release the residual stress stored in the material, so that the purpose of flattening the functional surface is achieved. The method provides asurface planarization method for the functional surface of the microarray structure manufactured by the precision machining technology. Operation is easy, equipment functions are rich, and the devicecan be used for large-scale batch machining.