17results about How to "Improve compensation efficiency" patented technology

The invention relates to the technical field of dynamic voltage compensation, in particular to a zero-current secondary voltage drop dynamic compensation method and system, and the method comprises the following steps: collecting current intensity data and voltage data in a power grid, analyzing time sequence data, determining a current intensity trend, segmenting the current and voltage data through a sliding window, and calculating the current intensity trend. The trend change of each window is calculated, and the moment when the current tends to zero is predicted. According to the invention, the current and voltage data are analyzed and predicted in real time, the critical moment when the current tends to zero is accurately determined, and the current change rate is refined, so that the load configuration of the power grid is optimized, the voltage regulation is more accurate, and the response speed of the power grid under the condition of rapid current change is obviously improved; the voltage fluctuation is effectively counteracted, the instant response capability of the power system to the unstable voltage is improved by dynamically adjusting the position of the transformer tap and controlling the distributed power switch in real time, and the flexibility and adaptability of the power grid are enhanced.

The invention discloses a human organ ultrasonic three-dimensional reconstruction method and device based on respiratory displacement compensation, and the method comprises the steps: controlling a probe at the tail end of a mechanical arm of an ultrasonic robot to collect a plurality of test ultrasonic images in a preset test time period at a target organ of a human body; based on the plurality of test ultrasonic images, carrying out conversion from two-dimensional pixel points to three-dimensional point clouds, and establishing a breathing displacement model of the target organ; and controlling the probe to continuously collect ultrasonic images, and applying the breathing displacement model to all the ultrasonic images to obtain a target organ model after ultrasonic three-dimensional reconstruction. According to the method, the accuracy and the stability of three-dimensional reconstruction are improved, the problem of target organ displacement caused by respiratory movement is effectively solved, the applicability and the reliability of ultrasonic imaging in a dynamic environment are improved, and a more complete and accurate three-dimensional target organ model can be obtained.

A path compensation method for time-reversal pulse compression, step 1, the initial signal s ori (t) is injected into the time reversal system to obtain the response signal s res (t); Step 2, intercept the response signal s of two decay time constants res (t), and then time-flip to s res (‑t), and recorded as the inversion signal s rev (t) = s res (‑t); Step 3, select the amplitude value of the maximum path of the inversion signal as A 0 =max{|A i |}, and the path of the inversion signal is compensated and corrected to A 0 , the compensated inversion signal can be expressed as #imgabs0#Step 4, injecting or radiating the compensated inversion signal into the time reversal system through the receiving port, which can generate pulse compression at the initial position and obtain the same pulse waveform as the initial signal; used in the time reversal pulse compression system, the inversion signal is usually an oscillation attenuation signal; improves the pulse compression efficiency and the gain of the time reversal pulse compression system; has the characteristics of simple method, easy implementation, and can effectively improve the time reversal pulse compression gain.

The invention discloses a digital pre-distortion compensation method based on a genetic algorithm. The method comprises the following steps: acquiring a plurality of initial signal features and initial pre-distortion coefficients; obtaining a first population and a second population according to the initial signal features and the initial pre-distortion coefficient; respectively processing the first population and the second population by adopting a genetic algorithm to respectively obtain a first lookup table and a second lookup table; acquiring a corresponding first pre-distortion coefficient in the first lookup table according to a baseband signal to be compensated, and when the first pre-distortion coefficient is judged to meet a preset precision requirement, performing compensation by using the first pre-distortion coefficient, or when the first pre-distortion coefficient is judged to not meet the preset precision requirement, performing compensation by using the first pre-distortion coefficient. And obtaining a corresponding second pre-distortion coefficient in the second lookup table so as to perform compensation by using the second pre-distortion coefficient. By setting the first lookup table and the second lookup table, the signals with different requirements are looked up by adopting different rules, so that the pre-distortion compensation efficiency and accuracy can be further improved.

The invention discloses a DeMura data compensation method, a DeMura data compensation system, a DeMura data compensation device and a storage medium, which can effectively compensate a display panel, can adapt to the requirements of different panels, and can reduce the production cost and improve the compensation efficiency and the image quality of display equipment. The method comprises the following steps: acquiring compensation information of a to-be-compensated display panel, wherein the compensation information comprises a compensation IP and user demand information; processing the display panel to be compensated according to a compensation algorithm to obtain compensation data; generating a configuration file according to the compensation information, wherein the configuration file comprises a target general parameter and a target command; analyzing the compensation data through the target general parameter and the target command to generate a binary file; and burning the binary file into the display panel to be compensated so as to complete updating of DeMura compensation data of the display panel to be compensated.

A method for compensating overlay misalignment includes: providing a wafer; performing a first pre-compensation and a second pre-compensation on a lithography machine; forming an initial fin structure on the wafer, wherein the sum of the compensation value of the first pre-compensation and the previous first etching misalignment of the initial fin structure is 0; obtaining a first etching misalignment of the initial fin structure, wherein the first etching misalignment is the same as the compensation value of the second pre-compensation; performing a third compensation on the lithography machine based on the first etching misalignment; performing a fourth pre-compensation on the lithography machine; after performing the third and fourth pre-compensations on the lithography machine, partially etching the initial fin structure to form a fin structure, wherein the sum of the compensation value of the fourth pre-compensation and the compensation value of the second pre-compensation is 0, and the compensation value of the second pre-compensation is the same as the previous second etching misalignment of the fin structure; obtaining a second etching misalignment of the fin structure, wherein the value of the second etching misalignment is 0. This method improves overlay accuracy.

An online compensation method for missing data in the urban sewage treatment process based on an autoencoder neural network realizes real-time compensation for random missing data in the urban sewage treatment process. In view of the nonlinear and high-noise characteristics of urban sewage treatment process data, which makes it difficult to establish an accurate mathematical model, this compensation method uses an autoencoder neural network to automatically extract the nonlinear relationship between variables, judges the missing situation of real-time samples according to the event trigger mechanism, and uses a gradient descent algorithm to adaptively adjust the model parameters online, thereby reducing the impact of high noise on the compensation results and improving the accuracy of real-time compensation for missing data in the urban sewage treatment process.

The present application relates to three coordinate measuring machine error compensation field, especially in kind based on nonlinear interpolation algorithm three coordinate measuring machine positioning error compensation method. Including in the verification direction according to the preset rule creates multiple verification points;According to the preset scheme, the three coordinate measuring machine is moved to each verification point in turn, and the positioning error value at each verification point is measured by using laser interferometer;The obtained each positioning error value is stored in the error table file;The error space is divided into several error data units;The coordinate value of the actual measurement point is obtained, and the vertex of the error compensation data unit containing the actual measurement point is taken out from the error table file;The positioning error value of the actual measurement point is calculated by nonlinear interpolation algorithm, the calculated positioning error value is added to the coordinate value of the actual measurement point, and the compensated coordinate value of the actual measurement point is obtained, which aims at solving the problems of poor positioning error compensation effect and low error compensation efficiency of three coordinate measuring machine.

This invention discloses a compensation method for a hybrid distribution transformer, relating to the field of transformer technology. It is applicable to interconnected transformers consisting of a first hybrid distribution transformer, an energy storage control device, and a second hybrid distribution transformer connected in sequence. The method involves acquiring the first three-phase operating data of the first hybrid distribution transformer, the second three-phase operating data of the second hybrid distribution transformer, and the current energy storage information of the energy storage control device based on a preset sampling period. Based on the first and second three-phase operating data, compensation information for the first and second hybrid distribution transformers is calculated. Based on the compensation information and the current energy storage information of the energy storage control device, the conduction direction and power flow direction of the energy storage control device are determined. The switching on and off of the interconnected transformers is then controlled based on the conduction direction and power flow direction to complete the compensation.

This invention belongs to the field of radar, and particularly relates to a method, system, medium, and device for initial phase compensation in a finite phase interval at the subarray level. The method includes: Step 1, acquiring the initial phase data of each antenna subarray in the radar array; Step 2, sequentially performing curve fitting on the initial phase data of each row of antenna subarrays to obtain a first compensation value for the initial phase data of each row of antenna subarrays; Step 3, sequentially performing curve fitting on the initial phase data of each column of antenna subarrays to obtain a second compensation value for the initial phase data of each column of antenna subarrays; Step 4, compensating the initial phase data of each antenna subarray based on the first compensation value and the second compensation value. This invention can eliminate the linear phase present in the array, reduce the phase compensation requirements of the phase shifter / digital transceiver components, reduce data processing volume, and improve compensation efficiency.

The invention provides a temperature drift leakage current compensation method for an X-ray detector, and the method comprises the steps: obtaining a leakage current temperature drift characteristic through a signal difference value of a response signal, thereby building a response signal relational expression, obtaining the actual temperature drift leakage current variable quantity of the X-ray detector according to the response signal relational expression, and updating the temperature drift leakage current in real time. Therefore, the real-time and accurate dynamic compensation of the temperature drift leakage current of the X-ray detector is realized, the image quality and sensitivity of the X-ray detector are not influenced in a wider temperature range, and meanwhile, the size of the PGA gear is adjusted in real time through the ASIC chip according to the temperature drift leakage current, so that the exposure saturation phenomenon is prevented. The invention further provides an X-ray detector temperature excursion leakage current compensation system and equipment. The X-ray detector temperature excursion leakage current compensation method is adopted for temperature excursion leakage current compensation.

The invention discloses a power compensation method and device of an energy storage converter and electronic equipment, and relates to the field of electric power systems.The method comprises the steps that when it is detected that power grid voltage drops, the drop depth of the power grid voltage is detected; judging whether the drop depth of the power grid voltage is greater than a target threshold; when it is judged that the drop depth of the power grid voltage is larger than or equal to the target threshold value, the target reactive compensation amount of a first energy storage converter in the energy storage system is obtained, and power compensation operation is conducted on the first energy storage converter according to the target reactive compensation amount; when it is judged that the drop depth of the power grid voltage is smaller than the target threshold value, power compensation operation is carried out on a second energy storage converter in the energy storage system, and the second energy storage converter is a series energy storage converter. The technical problem that when the power grid voltage drops, a traditional energy storage converter power compensation strategy cannot effectively and rapidly increase the power grid voltage is solved.

The utility model discloses an overflow method substrate glass forming thickness compensation adjusting device which comprises two soaking box bodies and thickness compensation mechanisms, the soaking box bodies are arranged on the two sides of a glass sheet respectively, and the thickness compensation mechanisms are arranged on the soaking box bodies respectively. The thickness compensation mechanism comprises an air inlet pipe, a heating assembly and an air outlet pipe which are connected in sequence; the air inlet pipe is used for receiving input cooling air; the heating assembly is used for heating the input cooling air, so that the temperature of the heated air reaches the softening point of the glass sheet or above; the air outlet pipe penetrates through the soaking box body, and the end, away from the heating assembly, of the air outlet pipe is used for inputting heated cooling air into the soaking box body. According to the invention, the thickness of the glass sheet can be controlled more accurately and flexibly, so that the thickness of the glass sheet can be compensated and adjusted more effectively.

The application relates to a charging pile cooperative power supply control method and system, a terminal and a storage medium, and relates to the technical field of charging piles. The method comprises the following steps: acquiring target demand power of a target charging vehicle; acquiring default power supply power of a target charging pile; judging whether the default power supply power is less than the target demand power; if yes, determining a power deficiency amount according to the target demand power and the default power supply power; determining a compensating charging pile and adjustable power of the compensating charging pile based on the power deficiency amount; connecting a target cross-pile power supply path between the compensating charging pile and the target charging pile; controlling the compensating charging pile to deliver the adjustable power to the target charging pile along the target cross-pile power supply path; integrating the default power supply power and the adjustable power to obtain target output power; and charging the target charging vehicle based on the target output power. The application has the effects of improving the charging utilization efficiency of the charging pile and enabling multiple charging piles to cooperatively output to meet higher target voltage requirements.

The present invention relates to the field of dynamic voltage compensation technology, specifically to a method and system for dynamic compensation of zero-current secondary voltage drop, comprising the following steps: collecting current intensity data and voltage data in a power grid, analyzing time series data, determining the current intensity trend, segmenting the current and voltage data using a sliding window, calculating the trend change of each window, and predicting the moment when the current tends to zero. In the present invention, by performing real-time analysis and prediction on current and voltage data, the critical moment when the current tends to zero is accurately determined, and by refining the current change rate, the optimization of the load configuration of the power grid is achieved, so that the voltage regulation is more accurate, the response speed of the power grid under the condition of rapid current change is significantly improved, and the voltage fluctuation is effectively offset. By dynamically adjusting the transformer tap position and the real-time control of the distributed power supply switch, the instant response capability of the power system to unstable voltage is improved, and the flexibility and adaptability of the power grid are enhanced.

According to the voltage compensation device, the power supply device and the power supply control method provided by the invention, the user-side power supply voltage is monitored; generating a voltage compensation control instruction under the condition that the user side power supply voltage is smaller than the user side demand voltage; and the voltage compensation control instruction is sent to the voltage compensation device, so that the voltage compensation device outputs the compensation voltage to provide the compensation voltage for the user side line according to the voltage difference between the user side power supply voltage and the user side demand voltage, the time for carrying out voltage rectification on the low voltage phenomenon is shortened, and the voltage compensation efficiency is improved.

The invention discloses a lithium / sodium ion battery electrode structure, a preparation method and application, and belongs to the technical field of chemical power sources, and the specific scheme is as follows: the lithium / sodium ion battery electrode structure comprises a plurality of active material regions, a plurality of metal ion source storage regions and a plastic-metal composite current collector, the plurality of active material regions and the plurality of metal ion source storage regions are alternately arranged on the surface of the plastic-metal composite current collector, and an insulating region is arranged between any active material region and the adjacent metal ion source storage region; the active material area is coated with an active material, and the metal ion source storage area is evaporated with a metal ion source. Through the partition structure design of the plastic-metal composite current collector, the negative electrode / positive electrode and the metal ion source electrode are arranged on the same plane, electronic insulation of the negative electrode / positive electrode and the metal ion source is realized, and the novel electrode structure provides a solution for the lithium / sodium ion battery with high specific energy and long service life.