123results about How to "With adaptive function" patented technology

An enhancement type analog predistortion linear power amplifier, including a signal splitter unit, a first main power amplifier, a predistortion generation unit, a delaying filter, a error power amplifier, a 3dB electric bridge, a control cell and a receiver, the input end of the signal splitter unit is a radio frequency input terminal port, the input end of the first main power amplifier and the first input end of the predistortion generation unit are respectively connected to the output end of the signal splitter unit, the first output end of the first main power amplifier is connected to the input end of the delaying filter, the second output end is connected to the second input end of the predistortion generation unit, the output end of the predistortion generation unit is connected to the input end of the error power amplifier, the control cell controls every device, the output ends of the delaying filter and the error power amplifier are connected to the input end of the 3dB electric bridge, and the output end of the 3dB electric bridge is a radio frequency output terminal port. The enhancement type analog predistortion linear power amplifier provided by the invention has the advantages of improved ACPR, self-adapting function, considerably improved integral efficiency of power amplifier, thereby totally meeting the applied request of engineering.

The present invention discloses one kind of butt-jointing platform with several freedom degrees, and the butt-jointing platform is one self-regulating mechanical butt-jointing platform with adaptive control system. The self-regulating mechanical butt-jointing platform includes one support platform, one work platform and three planar regulating mechanisms in the same structure. It features that three planar regulating mechanisms and one servo mechanism set between the support platform and the work platform are distributed to form one square, and that three vertical regulating mechanisms in the same structure on the support platform are distributed to form one triangle. The present invention features the self adapting function including measuring the butt-jointing position and angle between the butt-jointed body and the butt-jointed cavity and regulating the position and angle automatically to ensure high butt-jointing quality and effect.

The invention discloses a self-adapting eyeglass lens cleaning and dust removal device, and relates to the field of lens cleaning. The device comprises a machine frame, a first motor, a second motor, a lens feeding conveying belt, a lens blanking conveying belt, a first cleaning mechanism, a lens dust removal device, belt wheels and a belt, wherein the first motor and the second motor are respectively fixed on the machine frame; an output shaft of the first motor is fixedly connected with the belt wheels so as to transfer the power; the belt is arranged on each belt wheel; through the clamping effect of the belts at the two sides on the edge of the lens, a lens conveyed from the feeding conveying belt is driven to move through the clamping effect of the belts at the two sides on the edge of the lens; the lens dust removal device comprises an air pump, a hose and a high-pressure air spray nozzle; the air pump is fixedly connected with the machine frame; the hose is connected with the air pump and the high-pressure air spray nozzle. The motors are used for driving the double belt wheels to rotate so that the lens advance under the effect of the clamping force of the belt; through the twice wiping cleaning by lint and the dust removal work of high-pressure air, the lens can be conveyed to a packaging machine by the blanking conveying belt.

The invention provides a self-adaption web crawler method based on machine learning. Because at present, software developers need to inquire about complex page codes and research rules to compile net crawler programs, no self-adaption programs exist to automatically guide crawlers to work and meanwhile the field of electronic commerce is not touched, the technical aim of mining a large number of data through the machine learning technology so as to position information related to the content on an unknown webpage needs to be achieved. The aim is achieved through the machine learning and data mining method. The method includes the main technical steps of data obtaining, characteristic extraction, isomerous data normalization, training data establishment, self-adaption training, learning method verification and self-adaption mode generation, the method is used for conducting position characteristic extraction and self-adaption training on the page codes of crawled websites, and a certain effect is achieved for research on self-adaption network crawlers in the field of electronic commerce.

The present invention relates to a modeling method of broadband radio frequency power amplifier. In the method, a memory-free non-linear nominal model is connected with a memory non-linear identification model in parallel so as to realize the modeling of the power amplifier PA. The modeling method makes full use of the prior knowledge of the PA, and adopts the mixed modeling idea which combines the traditional memory-free non-linear nominal model and the memory non-linear identification model, realizes the modeling of the broadband radio frequency PA, and greatly improves the performance of the whole PA model.

The invention relates to a distribution transformer with a self-adaptation function. The distribution transformer with the self-adaptation function comprises a distribution transformer body, an accessory of the distribution transformer body, an on-load capacitance and voltage adjustment integrated switch, an on-load capacitance and voltage adjustment comprehensive control device and a loaded side current transformer, wherein the distribution transformer body and the accessory finish the operations of voltage boosting and reduction, electricity transmission and on-loaded capacitance and voltage adjustment, the capacitance and voltage adjustment integrated switch finishes switchover of switching on and off the capacitance and voltage adjustment gears, the on-load capacitance and voltage adjustment comprehensive control device monitors and judges the operation state of the distribution transformer by monitoring the current data and voltage data, obtained through a current collecting unit and a voltage collecting unit, on the loaded side of the distribution transformer in real time and finishes control cover the on-load capacitance and voltage adjustment integrated switch, and the loaded side current transformer is used for providing the current data on the loaded side of the distribution transformer.

The invention discloses an electronic accelerator pedal. The tail end of a pedal arm is provided with a force lag generating mechanism which comprises a base, two friction elements, a spring support and a spring; the two friction elements are arranged on two sides of the base, the spring support is arranged in an open slot at the upper end of the base, and the upper end face of the spring support is provided with a spring retainer which is arranged between a spring retainer of the spring support and a second spring retainer on a shell; and the lower end of the spring support is a wedge with a wide upper part and a narrow lower part, and two inclined planes at the lower end of the wedge are contacted with the end faces of the friction elements. The electronic accelerator pedal can generate good force lag effect and has good cost effectiveness.

This invention relates to a close-packed WDM and puts forward a gain spectrum automatic control method and its device for a multipump distributed Raman amplifier relating to close-packed WDM among which the method includes: setting a pump power initial value, applying signal power spectrum scanning, applying signal equivalent power progressive control and signal gain spectrum slope progressive control till meeting the power control requirement. The device includes an amplifier with multiple pump lasers, a light coupler a light detector, a control system and an outer communication interface. This invention can automatically realize gain spectrum constraint.

The invention discloses a one-way movable throttle valve, an outdoor unit of an air conditioner and a filling and operating method of the air conditioner. The one-way movable throttle valve comprises a valve body and a valve core, wherein a valve body is internally provided with a sliding cavity, the valve core is arranged in the sliding cavity of the valve body and can relatively slide relative to the axial direction of the valve body; when the valve core slides in the valve body in the axial direction, the valve core has a throttling state and a filling state; a throttling channel is arranged on the valve core, and a filling channel is arranged on the valve body; and when the valve core is in the filling state, the first end of the throttling valve is communicated with the second end through the filling channel; and when the valve core is in the throttling state, the second end of the throttling valve is communicated with the first end through the throttling channel. According to the one-way movable throttle valve, the outdoor unit of the air conditioner and the filling and operation method of the air conditioner, the production cost of the outdoor unit of the air conditioner can be effectively reduced, and the production efficiency is improved.

The invention relates to a ship transformer excitation surge current restraining device which is connected between a power supply bus and a ship transformer. The restraining device comprises a miniature transformer, a rectifier, a voltage stabilization capacitor, an inverter and an output inductor, wherein the miniature transformer, the rectifier, the voltage stabilization capacitor, the inverter and the output inductor are sequentially connected. The primary side of the miniature transformer is connected with the power supply bus and the output end of the output inductor is connected with the ship transformer. The miniature transformer is used for increasing the voltage at the secondary side and achieving the function of isolation protection. Alternating current is changed into direct current through the rectifier. A charging capacitor is used for supporting the voltage at the direct current side and flat waves at the same time. The output inductor is used for filtering out high-frequency glitches. Compared with the prior art, the ship transformer excitation surge current restraining device has the advantages that the structure is simple, excitation surge current can be effectively restrained, the responding speed is high, and the restraining effect is good.

The invention belongs to the technical field of power system control and particularly relates to a plug-and-play power system stabilizer design algorithm. The plug-and-play power system stabilizer design algorithm comprises the steps of: building a local model by employing voltage of a high voltage side bus of a transformer at an outlet of a generator, carrying out linearization on equation sets of the model and then substituting the equation sets into a differential equation set and arranging the equation set into a matrix form; solving steady-state initial values of other variables according to system parameters and given variable initial values under a steady-state operating point; calculating an open-loop electromechanical oscillation mode as shown in the specification; designing the power system stabilizer by a phase compensation method; arranging the designed stabilizer on the generator for simulation verification; and changing the system operating state, namely changing output power of the generator, collecting a local signal again through an automatic collection device, designing stabilizer parameters after the operating state changes and carrying out simulation verification, thereby achieving the plug-and-play function and the robustness of the stabilizer under different operating states of the system.

The invention discloses an automatic calibration system and method based on an LVDT sensor. The system comprises a constant-frequency constant-amplitude signal generation unit, a channel gating and LVDT driving unit, an access gating low-noise pre-amplification unit, a programmable gain unit and a microprocessor unit, wherein the output end of the constant-frequency constant-amplitude signal generation unit is connected with the input end of the channel gating and LVDT driving unit; the output end of the channel gating and LVDT driving unit is connected with the input end of the access gatinglow-noise pre-amplification unit; the output end of the access gating low-noise pre-amplification unit is connected with the input end of the microprocessor unit; the output end of the microprocessorunit is connected with the input end of the channel gating and LVDT driving unit and the input end of the programmable gain unit; and the output end of the programmable gain unit is connected with theinput end of the access gating low-noise pre-amplification unit.

The invention relates to a wave filtering method, which solves the problem of noise filtration when a pulse echo signal is intervened by noise from the view of signal processing. The method comprises the following steps: acquiring a transmitted pulse signal, and obtaining a frequency spectrum of the transmitted pulse signal through Fourier transformation; performing waveform analysis on the frequency spectrum of the transmitted pulse signal, and determining a geometrical structure of the waveform of the frequency spectrum; determining effective bandwidth of the frequency spectrum of the transmitted pulse signal; determining central frequency of the frequency spectrum of the transmitted pulse signal; designing a wave filter; acquiring an actually-measured pulse echo signal, and obtaining a frequency spectrum of the actually-measured pulse echo signal by Fourier transformation; multiplying the frequency spectrum of the actually-measured pulse echo signal by a frequency response function of the wave filter in a frequency domain to obtain a frequency spectrum of a detection echo signal after wave filtration; and performing Fourier transformation on the frequency spectrum of the echo signal in the step, and multiplying the transformed frequency spectrum of the echo signal by a shifted factor to obtain a filtered detection echo signal. The method is particularly applicable to detecting a weak pulse echo signal.

The invention discloses a compressor fixing device and a compressor fixing structure. The compressor fixing device comprises a base and a support, wherein at least two lower fixing portions are arranged on the base, the support extends upwards from the base, at least two fixing portions corresponding to the lower fixing portions are arranged on the upper portion of the support and are respectively located above the lower fixing portions, each upper fixing portion comprises an arc section and at least two linear sections adjacent to each other, namely the arc section and the at least two linear sections adjacent to each other surround to form the upper fixing portion. The compressor fixing device and the compressor fixing structure are fine in vibration absorbing effect and reliable in fixing.

The invention discloses an abrasion-resistant gear with a self-adaptive function and a manufacturing method thereof. The abrasion-resistant gear has a pressure and temperature self-adaptive function and particularly can maintain good drive capacity for a long time when the gear temperature rises instantaneously. In order to solve the problem that TiNi alloy/ceramic bionic structure material gearsare difficult to manufacture by a traditional gear mechanical machining mode, the gear is prepared through a selective laser melting (SLM) according to the following steps: selecting mixed elemental powder, TiNi alloy powder or TiNi alloy/ceramic composite powder, importing a two-dimension slicing model of the gear into a control system of a 3D printing forming device, setting SLM-based 3D printing technical parameters, carrying out 3D printing forming of the gear under vacuum/inert gas shielding, and carrying out thermal treatment on the formed gear under vacuum/inert gas shielding. The service life of the gear is greatly prolonged under high loads, and the gear is a novel high-performance gear with broad application prospects.

The invention discloses a wheel type robot chassis. The wheel type robot chassis comprises a round base plate, front and back universal wheels and left and right driving wheels, wherein the front andback universal wheels and the left and right driving wheels are connected to the round base, the universal wheels and the driving wheels are arranged in a rhombus shape, and the driving wheels are connected with a driving device. The driving wheels and the driving device thereof are connected to the round base plate through an elastic hanging device, the round base plate is connected with a collision detection device, and the collision detection device comprises a plurality of air pressure testing modules which are evenly distributed on the peripheral edge of the round base plate, and the airpressure testing modules are used for outputting collision signals when the air pressure increases. When the road surface changes, the elastic hanging device has an adaptive function, so that the driving wheels are always in contact with the ground and always has the driving ability, so that the wheel type robot is suitable for both flat environment and uneven environment, and the obstacle climbing ability is high. The collision detection device can detect the external collision force of the robot through the changes of air pressure reflected by the air pressure testing modules at different positions and realize the all-round anti-collision.

The invention discloses a system for online monitoring of a mutual inductor based on a deep network. The system comprises a mutual inductor monitoring assembly, a mutual inductor performance evaluation assembly, a mutual inductor standing book maintenance assembly and a monitoring equipment management assembly. The mutual inductor monitoring assembly carries out real-time monitoring and alarm on various functions of a mutual inductor and mutual inductor monitoring equipment. the mutual inductor performance evaluation assembly determines a deep neural network model for mutual inductor metering performance evaluation based on a deep learning algorithm according to pre-collected mutual inductor parameters, outputs a performance evaluation result of the mutual inductor by using the deep neural network model, displays the performance evaluation result of the mutual inductor, and analyzes the trend of the performance evaluation result of the mutual inductor. The mutual inductor standing book maintenance assembly is used for maintaining the standing book of the mutual inductor. The monitoring equipment management assembly manages the standing book information of a plant station, the standing book information of the mutual inductor, the standing book information of the monitoring equipment and the system of the detection equipment.

The invention belongs to the technical field of sewage automatic treatment, and discloses a sewage treatment automation operating system implemented by utilizing a statistical modeling technology. The sewage treatment automation operating system comprises an integrated module, an early-warning module, a USAOS system, a communication module, a Web service system, a reporting module, a database system and a daily management module, wherein the integrated module is used for receiving and issuing instructions among an anaerobic module, a facultative module, an aerobic module, a sludge module, a dephosphorization module and a denitrification module, and the integrated module is connected with the early-warning module; and the integrated module sends code processing data to the USAOS system, the USAOS system returns a scheduling strategy to the integrated module at the same time, the USAOS system can further read alarming and early-warning information, the USAOS system issues an instruction to the daily management module according to the information, and the daily management module exerts the information on equipment. The sewage treatment automation operating system can achieve unattended operation, adjusts sewage flow and equipment operating parameters in a fully-automatic manner, sends out early warning, and can realize remote intervention and diagnosis.