634results about How to "Less distracting factors" patented technology

The invention relates to a bill information identification method, an electronic device and a readable storage medium. The method includes: determining a region identification model, which correspondsto each to-be-identified field in a bill picture, according to a predetermined mapping relationship of the to-be-identified field and the region identification model, invoking the corresponding region identification models for region identification on row character regions of the bill picture, identifying target frames, which contain character information and have a fixed width which is a presetvalue, on the bill picture, and splicing the target frames, which contain the character information in the same rows, together according to successive orders of identification to form target row character regions containing the character information; and determining a character identification model, which corresponds to each to-be-identified field, according to a predetermined mapping relationshipof the to-be-identified field and the character identification model, and invoking the corresponding character identification model for the target row character regions of each to-be-recognized fieldfor character identification. The method can decrease an error rate of bill information identification.

The invention relates to an SARS-CoV-2 neutralizing antibody detection kit. The SARS-CoV-2 neutralizing antibody detection kit comprises a solid phase carrier, an S protein antigen of SARS-CoV-2 and acompetitive substance. The competitive substance is marked with a signal substance and can be specifically combined with the new coronavirus S protein antigen. Whether a tested person is infected bythe new coronavirus or not and whether infection risks exist or not are judged by detecting a neutralizing antibody through an immunodiagnosis technology, and the method is reliable in theory, practical and feasible and can be completed only in a secondary biosafety laboratory.

The invention discloses a measurement method of a volatile organic compound in tobacco lining paper with high determination accuracy and good repeatability, which is suitable for simultaneously determining dozens of volatile organic compounds. The measurement method is as follows: taking fluorobenzene as an internal standard substance; using headspace gas chromatography for measuring the content of the volatile organic compound in the tobacco lining paper; wherein a detector in the headspace gas chromatography is a mass spectrometry detector. The measurement method takes the fluorobenzene as the internal standard substance, uses the headspace gas chromatography / mass spectrometry for measuring the content of the volatile organic compound in the tobacco lining paper, and has the following advantages that the fluorobenzene has stable chemical property and are very similar to determinand in every performance, and the peak time appears in the middle of 19 target VOCs to be detected; therefore, the fluorobenzene is the very suitable internal standard substance, can eliminate the influence of ground substance in the tobacco lining paper on the measurement, causes materials which can not or are difficult to peak to be measured, and has high measurement accuracy and few interference factors.

The invention relates to a maintenance method for shield equipment and discloses a method for replacing a tail brush in a shield tunnel through liquid nitrogen freezing. The method comprises the following processing steps: 1, preparation of construction; 2, construction of freezing holes; 3, installation of a freezing system and a temperature measuring system; 4, construction of liquid nitrogen freezing; 5, construction of sealing maintenance of a shield tail; 6, construction of formation sealing of the freezing holes; 7, construction of forced thawing; and 8, construction of propulsion of shield recovery. According to the invention, stratum is frozen through a liquid nitrogen freezing method to form a frozen curtain, so that the defect of indeterminacy of a traditional grouting method for carrying out the treatment of stratum consolidation and water sealing to bearing pressure permeable stratum can be avoided; and the method has the advantages of high strength, good uniformity, good water-resisting property and the like.

The invention discloses a vehicle automatic gear shifting device, comprising a base, a shifter panel and a standard module, wherein the standard module comprises an outer casing, a shifting arm, a gear lever and a control circuit board, both the shifting arm and the control circuit board are arranged inside the outer casing, the lower end of the shifting arm is axially connected with the outer casing via a rotating axis in a manner of fit rotation; the standard module of the automatic gear shifting device further comprises a gear position detection unit which is arranged inside an installation chamber of the gear lever and is arranged in a manner of fitting with the gear lever, the gear lever achieves the purpose of gear shifting by changing the rotating angle in the slotting direction tocorrespond to Hall elements at different gear positions; the device further comprises a reinforcing structural rack which is arranged between the shifter panel and the standard module, the automatic gear shifting device can be installed and disassembled conveniently by adopting the standard module, and simultaneously, the standard module can also be transplanted to other different vehicle platforms easily.

The invention discloses a system and method for automatic matching and remote centralized interpretation of intelligent channels for travel inspection, and the system comprises an automatic matching and remote centralized interpretation system AMRSS and an automatic basket returning system ABRS that are connected together. The method, by matching uniquely identification tag of the facial feature information and the tray, achieves accurate matching of passenger information, identification tags and image information, realizes the automatic recheck of suspicious luggage and reduces the labor intensity of the security inspectors. Through the design and allocation of multiple basket taking stages, interpretation of multiple operators and recheck of multiple openers, the efficiency of security inspection is improved, the number of passengers and the waiting time of passengers can be predicted, and the waiting time of passengers can be reduced. The cooperation of the automatic matching and remote centralized interpretation system and the automatic transmission subsystem for the travel inspection completes the jobs of people-baggage correspondence, centralized interpretation, baggage sorting and tray recycling, improves the pass rate of passengers in the travel inspection channels, realizes the management of people-baggage correspondence, and reduces the labor intensity of security inspectors.

The invention provides a method for digesting a rich titanium product and a method for detecting the rich titanium product. The method comprises the following steps: placing a sample of the rich titanium product in a container; adding nitric acid, hydrochloric acid and hydrofluoric acid into the container; sealing the container; conducting digestion with microwave to obtain a digestion solution. The method comprises the step of adopting an inductively coupled plasma atomic emission spectrometer to detect the digestion solution prepared through the above steps. According to the digesting method and the detecting method, a plurality of key impurities with the content ranging from 15% to 0.001%, which determine the quality of the rich titanium product, can be simultaneously detected. Furthermore, the accuracy, the precision and the working efficiency of detection data are greatly improved.

The invention relates to a fan-out system in a package (SIP) method. The method comprises the following steps: providing a support plate; forming a stripped membrane on the support plate; forming protective layers on the stripped membrane and forming re-wiring metal layers in the protective layers; forming wiring packaging layers conducted with the re-wiring metal layers on the protective layers and forming wire bonding packaging layers on the wiring packaging layers; and removing the support plate and the stripped membrane to expose the re-wiring metal in the first protective layers and forming metal solder balls on the exposed re-wiring metal, wherein the packaging layers are electrically connected with each other. Compared with the prior art, the method which the invention requests to protect has the following beneficial effects: the final packaged products having the functions of the whole system instead of the functions of the single chip can be formed; the interference factors among the resistors, inductors and chips in the system are reduced; and besides, the more complex multilayer interconnection structure can be formed and higher integration level wafer SIP can be realized.

The invention discloses a correlation filtering tracking method and device based on depth information. The method comprises the following steps: quantifying the depth information adaptively to obtaina depth image segmentation result based on a depth image segmentation technology; constructing layered structures of three-dimensional space models corresponding to different scenes by means of the depth image segmentation result; and processing target scale change and detecting shielding by means of the layered structures and in combination with a kernel correlation filtering tracking algorithm.According to the invention, foreground and background information is filtered to reduce interference factors of tracking on the one hand, and a sophisticated image character extraction technology is combined; on the other hand, with the using method of simplifying the depth information by means of the layered structures, processing of target scale change and detection of shielding are easier. By combining the kernel correlation filtering tracking algorithm, a tracking method of a two-dimensional appearance model in a space structure is employed, so that shielding and target scale change can becoped with effectively, and the visual tracking effect is improved.

The invention discloses a repairing system and method for heavy metal-organic combined polluted soil and underground water. The repairing system comprises an electric repairing system, a resistance heating system, a soil gas-phase extraction system, an extracted gas phase treatment system and a system switchover system. The electric repairing system comprises a positive electrode and a negative electrode connected with a direct current power source, and the positive electrode and the negative electrode are arranged in a positive electrode electrolytic cell and a negative electrode electrolytic cell respectively. The resistance heating system comprises a positive electrode and a negative electrode connected with an alternating current power source. The system switchover system comprises a control device which controls the switching-on and off of a first switch and a second switch through a temperature detector probe. According to the repairing system, the electrodes are applied to the resistance heating system and the electric repairing system, effective combination and unification of the electric repairing technology and the heat treatment technology are achieved, equipment of the system is simplified, the repairing effect is enhanced, and the removal efficiency is improved.

The invention relates to a system for detecting the methane concentration of seawater in situ. In the system, bottom seawater in a measuring line enters a reducing valve through a filter, so that the pressure of the seawater is lowered to normal pressure; normal-pressure sample water flows into a gas-liquid separating device after being adjusted by a flow valve; a seawater sample is separated into sample water and sample gas by the gas-liquid separating device; the sample water is collected by a sample water collector; excessive sample water flows into a waste water compressive cabin; the sample gas is collected by an automatic sample valve, and is conveyed into a gaseous hydrocarbon detection device for testing; the excessive sample gas is emptied, and is adsorbed by chemical adsorption equipment; the sample gas enters the gaseous hydrocarbon detection device; target gas undergoes a reduction oxidation reaction through a high-sensitivity gas element to generate an electric signal; and the electric signal is acquired by corresponding chromatogram software, is converted into a digital signal by using analog-digital conversion equipment, and is transmitted to a PC (Personal Computer) on a boat through an optical cable to realize data display. The system has the advantages of capability of detecting the methane concentration of a seabed in situ, high accuracy, small interference and accurate data.

The invention discloses an automatically extracting method for the river-valley morphological parameters based on DEM, and relates to the field of digital geomorphology analysis. The automatically extracting method includes the steps that DEM data for analyzing a river-valley drainage basin is obtained; all rivers belonging to the river-valley drainage basin are obtained and numbered, and sampling points of a longitudinal section are taken at a certain sampling interval a; the morphological parameters of the longitudinal section of a river valley and the morphological parameters of the transverse section of the river valley are calculated. By means of the automatically extracting method, river-valley geomorphology and subsection difference can be represented in the microscopic view, and the whole terrain of the river valley can be analyzed; representation is comprehensive; the calculated parameters are small in interference factor and high in accuracy and operation efficiency.

The invention relates to benchmark test system and method for adjacent channel interference resisting capacity of an RFID (Radio Frequency Identification Device) reader-writer. The benchmark test system comprises a standard test environment, a reader transmitting antenna, a signal source transmitting antenna, a receiving antenna, an RFID, a reader antenna bracket, a signal source antenna bracket, a receiving antenna bracket, a reader-writer to be tested, a signal source, a frequency spectrum analyzer and a control computer. In the method, an adjacent channel interference signal is simulated by artificially applying an RFID reader-writer with controllable power and frequency to account the maximum adjacent channel interference strength under an acceptable reading rate so as to evaluate the adjacent channel interference resisting capacity of the RFID reader-writer scientifically and repeatedly; and under the same acceptable reading rate, the stronger the adjacent channel interference, the stronger the adjacent channel interference resisting capacity of the reader-writer to be tested. The reading rate of the reader-writer is tested by simulating the adjacent channel interference of the RFID reader-writer, therefore, the invention provides a simple, accurate and effective RFID automatic testing tool and a benchmark testing method for a user.

The invention relates to a construction method for improving fatigue strength of a welding joint of an orthotropic steel bridge deck, mainly aiming at welded toes of a welded joint of an orthotropic steel bridge deck unit U-shaped longitudinal rib and a longitudinal angle joint of the bridge deck. The construction key point of the construction method comprises the following steps of: firstly fixing a bridge deck unit on a construction jig at a horizontal position, rotating the construction jig to enable the bridge deck unit and the ground to form an inclined included angle of 15-25 degrees so that the welded joint on one side of the U-shaped longitudinal rib is arranged at a ship-like position, re-melting all welded toes of the welded joint at the ship-like position by full-automatic argon tungsten-arc welding without welding wires through a welding tractor, and re-rotating the construction jig so that the bridge deck unit re-welds the welded toes on the other side at a position of the same included angle by a same process. During construction, an argon tungsten-arc welding gun is clamped on the welding tractor and ensures reasonable angles and distances of the welding gun and the welded toes by regulating clamping states of the welding gun. On the construction jig, the full automatic welding operation has high efficiency and is easy to control, and the quality of the re-molten welding joint is stable and reliable.

The invention relates to a fan-out high-density packaging method, which comprises the following steps of: providing a carrier plate; forming a stripping membrane on the carrier plate; forming protective layers on the stripping membrane; forming a rewiring metal layer in the protective layers; forming wiring packaging layers which are conductive with the rewiring metal layer on the protective layers; forming inversion packaging layers on the wiring packaging layers, wherein the packaging layers are connected electrically and mutually by wiring layers and welding flux salient points; removing the carrier plate and the stripping membrane, so that rewiring metal in a first protective layer is exposed; and forming a metal welded ball on the exposed rewiring metal. Compared with the prior art, the fan-out high-density packaging method has the advantages that: a final packaging product with an integral systemic function instead of a single chip function can be formed, and the resistance and inductance in a system and interference factors among chips are reduced. In addition, a complex multi-layer interconnection structure can be formed, so that the wafer system-level packaging of a higher integration level is realized.

The invention discloses a determination method for pressure altitude parameters on a subsonic vehicle body. The determination method comprises a selection principle of a pressure source on the subsonic vehicle body and a data processing method for measuring pressure based on a selected pressure source, wherein the selection principle of the pressure source on the subsonic vehicle body is used for selecting and locating the pressure source; the data processing method for measuring pressure based on the selected pressure source comprises a correction formula fitting and measured value returning and calculating method, wherein the correction formula comprises [alpha] correction, [beta] correction and static pressure correction, and the returning and calculating method is a method that objective variables are obtained according to the iteration of pressure measuring values. Test results show that the corrected data has very high reducibility, the objective variables including a flying attitude angle, a speed and the like of a subsonic vehicle with higher precision can be obtained by combining the returning and calculating method, therefore, a new method is provided for the subsonic flying speed measurement of the subsonic vehicle.

The invention provides a landslide simulation experimental device which comprises an open experimental box, a horizontal bracket, an experimental box drive device and an automatic goniometer, wherein a positive panel of the experimental box is made of transparent materials, a back panel is parallel to the positive panel and is arranged between two side panels in a mode of moving along the direction vertical to the positive panel, a back panel fixing device is arranged on each side panel, the experimental box is arranged on the horizontal bracket, the bottom surface of the experimental box is articulated to the horizontal bracket with a single degree of freedom along the direction vertical to the positive panel, the experimental box is provided with the automatic goniometer, a video camera and a multi-negativemachine are erected in the front of the experimental box, and the experimental device can regulate the width of the experimental box based on side slope moulds with different widths, can also automatically measure a slope angle and record the whole process of an experimental process through the video camera and the camera, thereby being convenient for experimental personnel to observe and search.

The invention discloses a method for determination of the polychlorotrifluoroethylene (PCTFE) content in a polymer-bonded explosive (PBX) by near infrared spectroscopy. The method includes the steps of: preparing and collecting 260 PBX samples, taking 180 samples of them as a calibration set for establishing a calibration model, taking the remaining 80 samples as a validation set for model validation, and acquiring the near infrared spectrum data of all the samples; using a standard method to determine the PCTFE content in the samples; subjecting the spectrum data of the validation set samples in the wave bands of 6102.0cm<-1>-5697.0cm<-1> and 4680.2cm<-1>-4242.9cm<-1> to a first order derivative treatment, correlating the treated spectrum data with the PCTFE content by a partial least squares method, and establishing the calibration model by cross validation; employing the calibration model to predetermine the PCTFE content of the validation set samples, and selecting an optimal model according to a minimum root mean squared error of prediction (RMSEP) of the validation set; and acquiring the near infrared spectrum data of the samples to be determined, and making use of the optimal model to obtain the PCTFE content directly. Being suitable for determination of the PCTFE content in a PBX explosive, the method has the characteristics of convenient operation, and rapid and accurate analysis.

The invention provides a full-automatic plate illuminator and an illumination detection method thereof. The full-automatic plate illuminator comprises an incubation tower, a sample feed system, a chemical luminous reader, a plate cleaner and a plate cleaning container region, wherein the sample feed system is connected with the incubation tower, the chemical luminous readout instrument and the plate cleaner and controls the transmission of a micro-porous plate among the incubation tower, the chemical luminous readout instrument and the plate cleaner; the plate cleaner is arranged correspondingly to the plate cleaning container region; the chemical luminous readout instrument can process chemical luminous immunity test on the micro-porous plate. Compared with the prior art, the invention has the advantages that: the full-automatic plate illuminator has less interference factors, accurate result and simple quality control in automatic immunity analysis; the fast analysis can on-timely feedback information to clinic application; the invention can save manpower and materials, thus is beneficial to the test of batch samples.

The invention discloses an artificial aphid propagation method. Peas are utilized as a host plant to culture aphids and collect, select and store the propagated aphids. The artificial aphid propagation method realizes the large-scale, low-cost and standardized production of the aphids, makes the annual production of the aphids be possible and provides sufficient fodder or adding ingredients of artificial fodder for the growth and the propagation of natural enemy insects.

The invention relates to a micro-fluidic chip, and particularly relates to a membrane material-based micro-fluidic chip. The micro-fluidic chip comprises a sample feeding port, a fluid channel, a detection region and a liquid collection region, wherein the sample feeding port, the fluid channel, the detection region and the liquid collection region are mutually connected. The fluid channel is configured to convey a sample added through the sample feeding port to the detection region under the effect of the capillary action. A detection membrane used for the lateral chromatography and detection of the sample is arranged in the detection region. A collection device used for the absorption of the excess sample is arranged in the liquid collection region. One end of the detection membrane is connected with the fluid channel. The other end of the detection membrane is connected with the collection device. According to the technical scheme of the invention, the membrane material-based micro-fluidic chip effectively improves the precision and the accuracy of the lateral chromatography technique.

The invention provides a method for determining the sinter mixture granularity, which comprises the following steps of: (1) sample collection: sampling samples and determining the sample quantity; (2) sample preparation: reducing, dividing and freezing the samples; (3) screening: selecting screening equipment, determining the screening procedure, determining the screening time and carrying out screening; (4) weighing: weighing the weight of screened materials in all size grades; and (5) size grade calculation: calculating the percentage corresponding to all size grades according to a formula after the weighing completion of the samples in all size grades, recording the percentages, and calculating the average granularity. The method is characterized in that in the second step, the samples are frozen by a refrigerator after reduction and division. When the method is used, the problems that in the existing granularity determining method, the mixture size grade composition under the actual production condition cannot be objectively reflected, the mixed pelletization effect enhancing measure cannot be reasonably evaluated, and the like can be solved. The method has positive effects of effectively improving the proportioning, stabilizing the sinter process and stabilizing and improving the sinter mineral quality on sinter work procedures.

The invention discloses a measurement method of a protected layer swelling deformation quantity. The method comprises the steps of (a) using a drilling machine to drill a hole, (b) using the drilling machine to carry out reaming operation on the drill hole, (c) sending a top plate displacement measuring device to the top of the drill hole, and then sending a bottom plate displacement measuring device to the top end of an expanded hole, (d) fixing a hollow rod to the opening of the drill hole, (e) recording top plate displacement measuring device initial data d1 and bottom plate displacement measuring device initial data d2, (e) after the protection layer working surface is pushed, reading top plate displacement measuring device initial data d3 and bottom plate displacement measuring device initial data d4, (g) substituting the data collected in two times into a formula D=(d4-d2)-(d3-d1) to calculate and obtain the protected layer swelling deformation quantity. According to the method, the displacement measuring devices are arranged at the top plate and the bottom plate of a protected layer, the factors of unstable drill hole and unstable collapse holes are overcome, the swelling deformation of the protected layer can be timely captured, and the measurement is more accurate.

The invention relates to a high-density system-in-a-package method comprising the following steps of: supplying a base plate; forming at least one group of wiring packaging layers on the base plate, wherein the step of forming at least one group of wiring packaging layers includes the steps of sequentially forming an adhering layer, a packaging layer and a wiring layer on the base plate; forming lead bonding packaging layers on the tail group of wiring packaging layers, wherein the step of forming the lead bonding packaging layers includes the steps of sequentially forming an adhering layer, a metal lead bonding layer and the packaging layer; and bumping below the base plate. Compared with the prior art, by adopting the high-density system-in-a-package method disclosed by the invention, a final packaging product containing an integral system function but not a single chip function can be formed, the factor of the interference among the resistance, the inductance and the chip inside a system is reduced; and besides, by means of the high-density system-level packaging method, a more complicated multilayer interconnected structure can be formed, and the wafer system-in-a-package with higher integrated degree is realized.

A pressure-type control method with shift monitor for the hydraulic forming machine using powder as raw material is disclosed. A shift sensor is used to monitor the relative shift between upper and lower moulds. The shift value is used as the feedback parameter of closed-loop hydraulic control system. When the relative shift value is correspondent with the predefined thickness variation of powder, it is determined that the powder has been pressed by a predefined pressure, so performing a closed-loop control.

The invention relates to a device and method for testing performances of a commercial circulating heat pump water heater. The device includes a water-inlet temperature test component, a water-outlet temperature test component, a three-way valve, a flowmeter and a water pump, wherein the water-inlet temperature test component and the water-outlet temperature test component are arranged at a water inlet of a tested machine and a water outlet of the tested machine respectively and are used for testing the water-inlet and water-outlet temperatures of the tested machine, a first inlet of the three-way valve is connected with a water-outlet pipeline of the tested machine, a second inlet of the three-way valve is connected with a constant-temperature-water water-inlet pipeline, the outlet of the three-way valve is connected with a standard water tank through a water-inlet pipeline of the standard water tank, the flowmeter is arranged on a water-inlet pipeline between the three-way valve and the standard water tank, and the water pump is arranged on a water-outlet pipeline of the standard water bank and is used for transporting heated medium water to the water outlet of the tested machine. The method for testing the performances of the commercial circulating heat pump water heater by using the device includes the steps of preparation, test operation and test calculation. According to the method and device, interference factors are reduced, the heat-pump heating capacity of the commercial circulating heat pump water heater can be accurately tested.

The invention discloses a calcitonin magnetic particle chemiluminescent detection kit and a preparation method. The kit includes: magnetic particles coupled with calcitonin capture antibody, acridinium ester-labeled calcitonin detection antibody, calcitonin calibrator, chemiluminescence pre-excitation solution A, chemiluminescence excitation solution B and cleaning solution. The kit of the invention uses the magnetic separation chemiluminescence technology as the detection means, and simultaneously combines the acridinium ester labeling technology. The direct chemiluminescence method established by the invention has high sensitivity, strong specificity, accuracy and rapidity, short detection time and higher accuracy and repeatability of detection results, and the kit can be applied to various luminescence detection instruments.

The invention relates to a culture method for plant seedlings. The plant seedlings are cultured by a ventilated root division culture device, the side surfaces of two culture bowls of the device are in butt joint, a cover plate and a culture plate are arranged on the two culture bowls, culture holes are formed in the culture plate, and vent holes are formed in the two sides of the culture holes. The culture method comprises the followings steps: the plant seedlings of 3 days are taken and cultured in a Hoagland's nutrient solution with the concentration of 50 percent for 2 days then in a Hoagland's nutrient solution with the concentration of 100 percent for 12 days, the plant seedlings growing consistently are taken, the stems of the plant seedlings are wrapped by nutrient cotton and fixed in the culture holes of the culture plate, the roots of the plant seedlings are divided into a group A and a group B, the group A is put into the culture bowl containing the Hoagland's nutrient solution, and the group B is put into the culture bowl containing a nutritional deficiency nutrient solution; the pH values of the nutrient solutions are regulated to 6 at 8 o'clock in the morning and 15 o'clock in the afternoon; the nutrient solutions are changed every other three days; and after 4-12 days, the plant seedlings are taken out. The operation is simple, and the personal errors are reduced, so that the research result is more accurate, the culture time is saved, and the working efficiency is improved.

The invention discloses a fatigue crack growth rate measurement method based on infrared thermal imaging technology, including the following steps: spraying a black flat lacquer on a sample satisfyinga required geometric size and surface roughness to improve the surface emissivity of the sample; installing the sample, setting up an infrared thermal imager, determining an observation area, and calibrating the spatial resolution of an infrared image; setting fatigue loading parameters and infrared thermal imager sampling parameters, starting the fatigue test, and recording the temperature fieldevolution process in a fatigue crack tip region in real time; acquiring a corresponding heat source field through temperature field calculation with a two-dimensional heat transfer model, and automatically identifying the fatigue crack tip position in the heat source field; according to the change of the fatigue crack tip position, determining a crack propagation path, acquiring the fatigue cracklength at each moment, and calculating to obtain the fatigue crack growth rate. The method can be used to obtain accurate and reliable measuring results, has low requirements on test environment, iseasy to operate, and can realize non-contact measurement, full field measurement and automatic measurement.

The present invention belongs to the medication technical field and discloses hydrochloric ambroxol dry powder inhalant and a preparation method thereof. The hydrochloric ambroxol dry powder inhalant consists of hydrochloric ambroxol, dispersion flow aid and thinner, the weight percentage of which is 60 percent to 90 percent of the hydrochloric ambroxol, 10 percent to 30 percent of the dispersionflow aid and 0 percent to 40 percent of the thinner. The present invention comprises the following steps that the hydrochloric ambroxol or the hydrochloric ambroxol and the dispersion flow aid or thehydrochloric ambroxol, the dispersion flow aid and the thinner are processed for spray drying to obtain powder body which is collected into a glutin or plastic capsule or into an aluminum-plastic bubble cap or is contained inside a large dosage dry powder absorbing device as the storehouse form. The present invention adopts the dry powder inhalant to ensure that the hydrochloric ambroxol is directly absorbed into respiratory tract and lung by a medication device to act directly inside the respiratory tract, so as to achieve the purpose of the safe and targeting treatment with quick result andhigh efficiency.