31results about How to "Improve system adaptability" patented technology

The invention discloses a motor encoder positioning method and a motor encoder positioning system. The method comprises the steps of locking the position of a motor rotor according to a preset first electrical angle value and obtaining a first encoder numerical value of an absolute type encoder, wherein the first encoder numerical value is set as a first position of the motor rotor when the first electrical angle value is reached; confirming that a motor is in a normal operation state; starting the normally operating motor to obtain a fourth encoder numerical value of the absolute type encoder corresponding to the running position of the motor rotor after the motor rotor rotates; and obtaining the real-time running position of the motor rotor according to the fourth encoder numerical value and the first encoder numerical value. According to the method, by obtaining the first encoder numerical value of the absolute type encoder and then obtaining the deviation value between the obtained fourth encoder numerical value and first encoder numerical value, the running position value of the motor rotor can be confirmed, so that the effect of fixing the running position of the motor rotor is achieved; the system assembly is simplified and the dead center position of the motor rotor does not need to be adjusted manually.

The invention discloses a film-spraying waterproof material which is prepared from the following raw materials in parts by weight: 100 parts of magnesium acrylate monomer solution, 0.01-0.1 part of tetrasodium ethylenediamine tetraacetate, 0.01-0.1 part of copper acetate, 2-20 parts of silica white and 2-20 parts of calcium carbonate. The invention also discloses a preparation method of the film-spraying waterproof material, which comprises the following steps: adding the tetrasodium ethylenediamine tetraacetate and copper acetate into the magnesium acrylate monomer solution, uniformly stirring and mixing, adding the silica white and calcium carbonate, and stirring with a high-speed dispersion machine to obtain the film-spraying waterproof material. The invention also discloses an application method of the film-spraying waterproof material. The film-spraying waterproof material disclosed by the invention solves the problem that the original film-spraying waterproof material must be stored and transported in the refrigeratory state under high-temperature conditions, saves the cost, widens the application range, and lays solid foundation for the development of the film-spraying waterproof material.

The invention discloses an intelligent tracking and monitoring system based on RFID label signal intensity. The intelligent tracking and monitoring system based on RFID label signal intensity is characterized by comprising a tracking and monitoring area, an active RFID label worn by a person or an object, tracking network cameras, RFID readers, a network interchanger and a PC server, wherein the tracking network cameras and the RFID readers are distributed above the tracking and monitoring area in a grid shape, and the rectangular area defined by the four RFID readers on the outermost portion forms the tracking and monitoring area. The intelligent tracking and monitoring system based on RFID label signal intensity analyzes the movement trend by collecting the changes of the signal intensity of the 2.4GHz active RFID label worn by the person or the object and correspondingly controls a camera cloud deck, thereby accurately realizing tracking and monitoring.

The invention provides a frequency offset estimation and compensation method based on broadband frequency hopping system. The method comprises the following steps: dividing each to-be-transmitted message into a plurality of pulses with the two ends of each pulse added by a synchronous frame header consisting of known pseudo-random sequences; correlating the front end and the back end of the received synchronous frame header with the local PN codes respectively to obtain the frequency offset estimation values; normalizing the frequency offset estimation values of different frequency points; utilizing the signal-to-noise ratio estimation information as weighted values for weighted sums so as to obtain relatively accurate frequency offset estimation values; then, conducting anti-normalization followed by the compensation for the different frequency points so as to obtain the phase offset estimation value of each pulse; conducting phase offset compensation; and finally restoring the received data and conducting coherent demodulation. The method proposed in the invention can estimate and compensate the frequency offset in a high speed wide frequency hopping system, and can provide good performances especially in a complex electromagnetic environment.

The invention provides a method of detecting apovincamine acid and vincamine acid in vinpocetine simultaneously. The method comprises steps of (1) preparing a test solution by using a vinpocetine rawmaterial or vinpocetine injection; (2) diluting the test solution by 1000 times to be used as a control solution; (3) performing chromatographic separation on the test solution and the control solution by using high-performance liquid chromatography, and recording a chromatograph, wherein chromatographic conditions are as follows: detection wavelength is 262nm-266nm, column temperature is 25DEG C-35DEG C, a mobile phase A is a phosphate buffer solution, a mobile phase B is methanol, and eluting flow rate is 0.8-1.5ml/min; and (4) calculating contents of apovincamine acid and vincamine acid inthe test solution according to a self-control method of a principle component with a calibration factor. Peaks of the vincamine acid and apovincamine acid and the peak of vinpocetine can be well separated. The method can highly adapt to a system, and has low detection limit and high precision.

Embodiments of the invention provide an application program development method and device, and electronic equipment, and belong to the technical field of computer applications. The method comprises the steps of determining an application type of each to-be-developed service module in an application program; matching a development scheme corresponding to the application type for each service module, and the development scheme being any one of a native development scheme, a WebView development scheme and a Flutter development scheme; developing each service module by utilizing the development scheme matched with each service module; and coupling all the service modules to obtain the application program. Through the processing scheme disclosed by the invention, a hybrid development scheme fordifferent service modules in the application program is provided, the system adaptability of the service modules is improved, the development difficulty and time consumption are reduced, and the development and maintenance process of the application program is optimized.

The invention relates to the field of analytical chemistry, and particularly discloses a method for detecting sorafenib-tosylate-related substances. The detecting method includes the steps that a to-be-tested sorafenib-tosylate product is taken to prepare a test solution, and the test solution is diluted by one hundred times to serve as a contrast solution; then a pH3.0 phosphate buffer solution (1.36 g of monopotassium phosphate is taken, dissolved with water and diluted to 1000 ml, and the pH value is adjusted to be 3.0 with phosphoric acid) serves as a mobile phase A, acetonitrile-ethanol (60:40) serves as a mobile phase B, and gradient eluting is carried out according to the following table, wherein the detection wavelength is 250 nm, and the column temperature is 35 DEG C; HPLC detection is carried out, and the content of the related substances is measured according to the correction-factor-added main-constituent self-contrast method. According to the method, the acetonitrile-ethanol phosphate-buffer-solution gradient elution system is adopted, the chromatographic peak of sorafenib tosylate can have the higher separation degree than that of other related substances and high peak-pattern symmetry, the related substances can be detected, and high system suitability is achieved; meanwhile, incomparable advantages are shown in the specificity, the quantitation limit, the detection limit, the linear range and the repeatability, and high precise is achieved.

The invention relates to C03C, in particular to glass powder suitable for crystalline silicon p + layer contact and used for thick film silver paste and a preparation method of the glass powder. The preparation raw materials of the glass powder comprise a metal oxide and a non-metal oxide. According to the glass powder for the thick film silver paste suitable for crystalline silicon p + layer contact, the glass powder is introduced into the thick film silver paste, so that the metal-semiconductor contact resistance and the metal induced recombination speed can be reduced. By controlling the particle size and the use amount of the glass powder, rapid formation of silver microcrystals in silver paste sintering can be promoted, corrosion to a doping layer and formation of aluminum pinning are reduced, and the open-circuit voltage and the filling factor of the cell are improved. The glass powder provided by the invention can be used in TOPCon cell silver-aluminum paste, optimizes the metal-semiconductor contact performance of the silver-aluminum paste and a p + layer of a crystalline silicon solar cell, reduces metal induced recombination, improves the open-circuit voltage of the solar cell, and improves the photoelectric conversion efficiency of an N-type or P-type TOPCon crystalline silicon solar cell.

The invention provides a method for detecting residual solvents in pantoprazole sodium sesquihydrate. The method comprises the following steps: (1) preparing a test solution which comprises pantoprazole sodium sesquihydrate and a solvent, wherein the solvent comprises dimethyl sulfoxide and/or water; (2) preparing a reference substance solution, wherein the reference substance solution comprises methanol, dichloromethane, ethanol, acetonitrile and benzene, wherein a solvent is the same as the solvent in step (1); and (3) performing headspace gas chromatography test by using a medium-polarity capillary column and adopting temperature programming, wherein the sequence of the step (1) and step (2) is not sequential. The method can be used for simultaneously detecting the residual quantity ofmethanol, dichloromethane, ethanol, acetonitrile and benzene in the pantoprazole sodium sesquihydrate. The method has good specificity, system adaptability, extremely low detection limit and quantification limit, good linearity, good accuracy and durability.

The invention belongs to the field of chemical analysis, and particularly relates to a method for detecting melamine and cyanuric acid in carbon [<13>C]-urea. The method comprises the following steps:a) mixing a carbon [<13>C]-urea sample with a diluent to obtain a test solution, wherein the diluent is a phosphate buffer solution; b) performing liquid chromatographic detection on the test solution to obtain a chromatogram of the test solution, wherein in the process of chromatographic detection, a filler in an adopted chromatographic column is hydrophilic siloxane-bonded silica gel, an adopted mobile phase is composed of a phosphate buffer solution and methanol, and an adopted elution mode is gradient elution; and c) acquiring the detection results of melamine and cyanuric acid in the sample according to the appearance conditions of characteristic peaks corresponding to melamine and cyanuric acid in the chromatogram. The method provided by the invention is suitable for qualitative andquantitative detection and analysis of melamine and cyanuric acid in the carbon [<13>C]-urea product, and is high in accuracy and good in repeatability.

The invention relates to the technical field of water purification, and particularly relates to a modularized integrated device and method for treatment of black odor water. The device comprises a conveying component, a filtering water purifier, an on-line monitoring component and a programmable logic controller (PLC) control component; the filtering water purifier, the on-line monitoring component and the PLC control part are connected to form a normal operation loop and a filter water purification module regeneration loop through the conveying component; and a separation assembly composed ofa plurality of modules is arranged in the filter water purifier. According to the invention, through the functional design and combination of the system units, different functional units can be flexibly selected in the system according to technological requirements, and a process purpose is achieved, so that system adaptability is high. Meanwhile, the filter material modules with different filterwater purification characteristics are combined into the filter water purifier, so that miniaturization of various filtering water purification functions is realized, and the problems that a single filter water purification material is single in performance, insufficient in water quality adaptability, frequent in replacement of filter water purification material and inconvenient in replacement are solved.

The invention discloses a fresh zanthoxylum oleoresin separation and purification process which comprises the following steps: after harvesting fresh zanthoxylum, carrying out cold pressing within two hours to obtain fresh zanthoxylum oleoresin, carrying out countercurrent extraction separation on the fresh zanthoxylum oleoresin through a liquid substance extraction and separation unit of a supercritical CO2 fluid dynamic countercurrent extraction and separation system, and after the countercurrent extraction separation is completed, obtaining fresh zanthoxylum resin from an extraction unit, and obtaining the fresh pepper essential oil through the separation unit. The extraction separation process is as follows: the feeding rate is 40kg/h, the CO2 flow rate is 600L/h, the extraction temperature is 45 DEG C, and the extraction pressure is 20MPa; the separation temperature I is 40 DEG C, the separation pressure I is 7.5 MPa, the separation temperature is 55 DEG C, and the separation pressure II is 4-6 MPa; the total yield of the fresh zanthoxylum oil resin product reaches 98.74%-99.19%, and the separation efficiency reaches 94.00%-99.24%; the volatile oil content of the obtained fresh zanthoxylum bungeanum essential oil can reach 101.94-128.93 ml/100g, and the numb degree is lower than 5 mg/g; and the content of volatile oil in the obtained fresh zanthoxylum bungeanum maxim resin is smaller than 5 ml/100 g, the hemp degree can reach 141.12 mg/g to 182.56 mg/g, and the hemp degree is increased to 42.59% to 53.17%. According to the process disclosed by the invention, the fresh Chinese prickly ash essential oil with high volatile oil content and the fresh Chinese prickly ash resin with high numb degree can be obtained, and the purification effect of the two products is remarkable.

The invention discloses an autonomous vehicle driving environment cognitive target selection method and device and a machine readable storage medium. The method comprises the steps: 1, acquiring perception information and vehicle information from a vehicle perception interface; 2, establishing a boundary line model for the driving environment according to the perception information and the vehicle information; 3, establishing a boundary line arbitration module, and selecting an optimal boundary line model of the current scene; and 4, according to the optimal boundary line model, putting the targets into the corresponding lanes in sequence, and filtering the targets exceeding the boundary line. According to the method, a plurality of models are established for the driving environment of the automatic driving vehicle by collecting the information data of the sensor and the vehicle, the target in the driving road is selected, accurate and effective information is provided for automatic driving vehicle trajectory planning, and the problems of target selection robustness, adaptability and the like in the prior art are partially solved.

The invention relates to the technical field of heat exchange equipment, and discloses a supercritical carbon dioxide Brayton cycle system. The supercritical carbon dioxide Brayton cycle system comprises a generator, a heat source heat exchanger, a turbine, a cooler and a compressor, the heat source heat exchanger, the turbine, the cooler and the compressor are sequentially and circularly connected, the generator is connected with the output end of the turbine, and a plurality of heat regenerators are further arranged between the turbine and the cooler. The number of the heat regenerators is not less than three, a hot side inlet and a hot side outlet of each heat regenerator are connected with the turbine and the cooler, and a cold side inlet and a cold side outlet of each heat regenerator are connected with the compressor and the heat source heat exchanger. Compared with the structure of an existing circulating system, the multiple heat regenerators can form multiple connection modes, so that the heat regeneration requirements of large Brayton cycle systems of different magnitudes can be met, a system regulation and control strategy based on heat regenerator equipment can be conveniently formed, the regulation and control modes of a closed Brayton cycle system are increased. The flexibility of the supercritical carbon dioxide Brayton cycle system is improved.

The invention relates to the field of chemical analysis, in particular to a detection method for a quinazoline-7-ether compound and related substances thereof. The detection method comprises the following step: detecting the content of a to-be-tested sample with the synthetic quinazoline-7-ether compound by using high performance liquid chromatography to respectively obtain the contents of the quinazoline-7-ether compound and the related substances thereof in the to-be-tested sample, wherein the quinazoline-7-ether compound has a structure shown in the formula I; the related substances of thequinazoline-7-ether compound comprise one or more of structural compounds shown in the formulas (II) to (IV); and a mobile phase used in the high performance liquid chromatography detection process isan ammonium acetate-phosphate buffer solution, methanol and acetonitrile. According to the detection method of the quinazoline-7-ether compound, disclosed by the invention, an ammonium acetate-phosphate buffer solution-methanol-acetonitrile elution system is adopted, so that the detection of the quinazoline-7-ether compound and other related substances is benefited. (The formula is shown in the description).

Methods and systems are provided for controlling and diagnosing a mechanical vehicle component. In one example, a method may include determining a vehicle speed and a plurality of clutch position settings at a diagnostic controller, and identifying unauthorized conditions based on these determinations. Further, the diagnostic controller may trigger an active fault state of the mechanical vehicle component in order to avoid unauthorized conditions that may lead to unwanted or unanticipated changes in vehicle motion.