128results about How to "High detection cost" patented technology

The invention discloses a pavement asphalt thickness detection method based on vehicle-mounted laser scanning spot cloud, comprising steps of obtaining spot cloud data, performing data rough registration through choosing a fixed object, using a pavement extraction algorithm based on the road shoulder to respectively detect two sets of the pavement points of the point cloud data, using the road shoulder point to perform precise registration on the data in the block, performing plane structure fitting on the pavement inside the grid, and detecting the asphalt thickness. The invention can fast and accurately detect and modify the thickness of the road asphalt, greatly reduces the processing time and the labor cost, effectively guarantees the road reconstruction quality and provides important data support to the civil traffic safety.

An embodiment of the invention discloses energy management equipment, an electronic control system, an electronic control method and an electric vehicle. The energy management equipment comprises an H-bridge unit, a battery pack serving as an input power source of the H-bridge unit and a BMS (battery management system) for performing energy balance control on the battery pack, wherein the electronic control system comprises a master controller, 3N sub-controllers and 3N sets of energy management equipment; the 3N sets of energy management equipment constitute a first face group, a second face group and a third face group; each faces group comprises N sets of energy management equipment, the master controller calculates the PWM (pulse-width modulation) duty cycle of each set of energy management equipment, and the sub-controllers control connection of corresponding energy management equipment according to the PWM duty cycles. The embodiment of the invention solves the technical problems of high battery consistency requirement, high detection cost, battery replacement difficulty and poor balance ability of the BMS due to large-scale series connection of batteries in the battery pack of the conventional electric vehicle, so that dynamic voltage equalization after large-scale series connection of the battery pack is realized.

The invention discloses a digital imaging acquisition system for aggregate grading detection. The system consists of an aggregate sampling device, an image acquiring device, an optical processing optimizer and communication and storage equipment, wherein the aggregate sampling device comprises a material dividing plate, a distance adjusting rod and an angle adjusting rod; the image acquiring device comprises an infrared laser, a linear array camera and an image acquiring card; the optical processing optimizer comprises a filter device and a diffuse coating layer; and the communication and storage equipment comprises a data line and a computer. A digital imaging acquisition method for aggregate grading detection comprises the following steps of: setting the aggregate sampling device; setting the image acquiring device; setting the communication and storage equipment; acquiring an image of a sampled aggregate; and transmitting and storing the image. An aggregate stream is sampled and acquired by arranging the material dividing plate, so the problem that the image of a falling stream of the aggregate must be completely acquired is solved and the defects of poor quality of the acquired image, difficult separation of particles and a large amount of processing data are overcome.

The invention relates to a tetracyclines aptamer, an aptamer electrochemical biological sensor for detection of tetracyclines, and a preparation method and a detection method of the sensor. The tetracyclines aptamer is a single strand DNA probe containing a TTGAGCCCT sequence and having the length of 13-20 bp, and an amino is modified by a 5' end, namely 5'-NH2-(CH2)6-. The aptamer electrochemical biological sensor for the detection of the tetracyclines contains the tetracyclines aptamer. The sensor improves the sensitivity of the detection of the tetracyclines, and can detect the tetracyclines in a minimum concentration of 1.0 ng/mL; and the sensor greatly reduces the cost of the detection of the tetracyclines, has simple and convenient operation, and can rapidly detecting the tetracyclines.

Provided is a coherent anti-stokes Raman microscopy imaging system generated on the basis of double-soliton pulses. The microscopy imaging system comprises an optical fiber laser for generating original femtosecond pulses, a double-soliton pulse generation and spectrum expansion unit for generating the double-soliton pulses, an optical pulse scanning unit for achieving pulse time-domain scanning, a power ratio control unit for adjusting the ratio of the double-soliton pulses entering the double-soliton pulse generation and spectrum expansion unit and the optical pulse scanning unit, a microscopy imaging system for conducting focusing excitation and signal photon collection on a sample to be detected and a part for conducting detection, extraction process and microscopic image display on signal photons. According to the coherent anti-stokes Raman microscopy imaging system, the double-soliton pulses which have the time domain capable of being distinguished and have frequency differences are obtained on the basis of a full optical fiber system, an excitation light source system is simplified, frequency modulation resonance excitation is achieved, the influence of non-resonant signals on a coherent anti-stokes spectrum is eliminated, and the contrast ratio of coherent Raman microscopy images is significantly increased.

The invention provides a mass spectrum system used for detecting biomolecules. The system comprises a mass spectrometer data collecting system, an intelligent fuzzy expert system, a knowledge base collecting system and a model collecting system. The mass spectrometer data collecting system is used for detecting mass spectrum data of a sample; the intelligent fuzzy expert system can carry out intelligent analysis on the mass spectrometer data; the knowledge base collecting system can store and manage related knowledge of mass spectrum detection in advance through a cloud center; the model collecting system is used for sending the known mass spectrum model data to a knowledge management system and a mass spectrum model storage device according to instructions. The system is supported by cloud center calculation, intelligent learning and storage are performed through the knowledge base collecting system, the intelligent analysis is carried out on the mass spectrum data through the intelligent fuzzy expert system, and simulation with lower cost is carried out to generate a large amount of training data; the system is conductive to analyzing large samples, is suitable for nonprofessional operations, achieves monitoring personal health information in real time, and meets personalized medical service requirements.

The invention relates to a full-cycle or half-cycle synchronous frequency measurement corrected digital demodulation detection system and detection method of amplitude-modulated signals. The full-cycle or half-cycle synchronous frequency measurement corrected digital demodulation detection system and method can be adopted to realize the amplitude detection of the amplitude-modulated signals. According to the detection system, a micro controller unit is adopted to control a high-speed analog-to-digital conversion unit to perform signal acquisition, and lock-in amplified digital integral and filtering can be realized through absolute value cumulative averaging calculation; and the starting point of a full cycle or a half cycle is captured, and the frequency of the signals is measured through using high-frequency counting, and frequency correction is performed on a detection result. Compared with an existing detection system using a lock-in amplifying circuit, the detection system of the invention has the advantages of simple circuits, no middle debugging process and high detecting precision; compared with an existing simplified digital demodulation detection system, the detection system of the invention can assist in decreasing system detection noise and improving detection accuracy under the premise that the complexity of the circuits and algorithms as well as detection time and cost are not increased.

The invention provides a testing method for total phosphorus content in soil based on image analysis, and the testing method for the total phosphorus content in soil based on the image analysis relates to the soil chemical analysis. The testing method for the total phosphorus content in the soil based on the image analysis includes the following steps of pretreating soil samples by a method of melting sodium hydroxide, preparing samples, colorating, and acquiring a concentration value c. The step of acquiring the concentration value c includes digital imaging after colorating and image analysis software is used for acquiring red, green, blue (RGB) values of the soil samples. A gray scale value Gr is acquired according to the RGB values, and the concentration value c is acquired according to the grey value Gr. The testing method for the total phosphorus content in the soil based on the image analysis has the advantages of being convenient and fast to test, easy to operate, low in testing cost, and suitable for on-site analysis.

The invention discloses a lectin chip for joint detection of ten carbohydrate chains in human serum as well as preparation and use methods of the lectin chip. Ten specific lectin probes are fixed on the surface of a solid-phase carrier in a dot matrix manner, and joint detection of ten carbohydrate chains in human serum is realized by coating ten specific lectins, wherein the solid phase carrier is a gold foil chip chemically modified by 16-amino-1-hexadecanethiol and DOTA-NHS-ester, and three carboxyls at the tail end of DOTA-NHS-ester are activated by EDC and NHS to fix specific lectins as probes. The chip has the advantages of high throughput, high selectivity, high specificity and the like and is more applicable to research of human tumor glycosyl spectrum characteristics.

The invention provides a method for ultra-sensitively detecting small molecular substances, and belongs to the field of biotechnology. To-be-detected small molecule substances in the method are one ormore than two of antigens, ligands, biotins, substrates and polysaccharides. The method comprises the following steps: respectively marking solid phase carriers by using various to-be-detected smallmolecules; respectively marking substances for recognizing the various to-be-detected small molecules through specific action by using all fluorescence probes to obtain fluorescent markers; adding thesolid phase carriers marked by all the to-be-detected small molecules and all the fluorescent markers into a sample solution for reaction; after the reaction is ended, separating the solid phase carriers and releasing the fluorescent probes combined to the surfaces of the solid phase carriers; detecting the fluorescent probes with a single molecular detection method, and calculating the concentrations of all the to-be-detected small molecules in the sample solution according to a standard working curve. By adopting the method for ultra-sensitively detecting the small molecular substances provided by the invention, various small molecular substances can be rapidly and ultra-sensitively detected.

The invention discloses benzothiazole-triphenylamine dye with an AIE effect and a preparation method and application thereof. The preparation method of the benzothiazole-triphenylamine dye comprises the steps that benzothiazole-2-acetonitrile and diphenyl amino-4-benzaldehyde are dissolved into absolute ethyl alcohol, ammonium acetate is added, and reacting under stirring is conducted at room temperature; a coarse product is obtained through filtering, and the pure benzothiazole-triphenylamine dye is obtained through recrystallization. According to the benzothiazole-triphenylamine dye, a cyanide ion detection method which is high in selectivity and sensitivity, is not disturbed by other negative ions, can achieve the detection limit as low as the ppm level and is low in detection cost and convenient and fast to operate can be achieved through an aqueous solution, and the problems that in the cyanide ion detection field, the cost is high, operation is complex, and detection is insensitive can be solved.

The invention discloses a braking controlling method for the point-to-point position servo of the induction machine. The energy consumption braking servo phase trajectory of the induction machine runs commonly along the optimum switched-line, which is the time price suboptimum braking controlling method, the braking controlling method is that: the induction machine runs at the predetermined maximum speed according to the error amount deltaX of the initial displacement coordinate X2 and the target displacement coordinate X of the controlled moving object, when the induction machine reach the displacement coordinate X1 of control amount state switch shifting, the Bang-Bang controller in the braking controlling system sends out a braking signal, the power inverter outputs a variable stator braking current with the amount in the certain function relation with the rotor rotating speed omega[r], so that the energy consumption braking phase trajectory of the induction machine runs along the optimum switched-line, accordingly the time price of the target displacement coordinate X is optimal, and the variable current braking energy consumption is less, thus having theory innovation and practical value.

The invention provides a tumor imaging system based on near-infrared spectrum blood oxygen concentration measurement and an experiment detection method of the system. The problems that traditional tumor detection equipment is heavy, expensive and high in diagnosis cost are mainly solved. The system comprises a main control part, and the main control part comprises a control kernel STM32F103 which is respectively connected with a light signal generation module, a data storage and communication interface module, and a signal conditioning and analog-digital conversion module, wherein the data storage and communication interface module comprises an SD card, a USB communicating with an upper computer, and a serial interface; the signal conditioning and analog-digital conversion module comprises a data amplifying and filtering part and an analog-digital conversion part and is responsible for signal collection and preprocessing. A probe part comprises the light signal generation module and a light signal receiving module. The system has the advantages of being free of radiation, low in manufacturing cost, portable, easy to operate, high in recognition rate, capable of achieving imaging and the like.

The invention discloses a detection material resisting NMDAR autoantibodies in human body fluid and a preparation method and application thereof. According to the invention, NMDAR antigens are arranged on a carrier membrane through coating to prepare an anti-NMDAR-receptor detection material, specific NMDAR antibodies in human serum and cerebrospinal fluid can be combined with the antigens, alkaline phosphatase substrate-ligand reaction is utilized for color development, the sealing material is added in the color development reaction, and whether a detected sample contains the NMDAR antibodiesor not can be directly judged through naked eye observation. The method has the advantages of high sensitivity, easy and convenient operation and rapid detection, and is conducive to recognition anddiagnosis of anti-NMDAR-receptor encephalitis.

The invention discloses a method, primer, probe and kit for detecting six unusual fusion types of BCR-ABL fusion genes such as e6a2, e8a2, e19a2, e1a3, e13a3 and e14a3. The method comprises the following steps: performing primary screening on blood samples by adopting two tubes of fluorescent quantitative polymerase chain reaction (PCR), and quantitatively indentifying specific types of the blood samples belonging to the a2 or a3 group through primary screening judgment. Therefore, the screening cost is reduced, and the detection throughput is also improved. According to the detection method, primer, probe and kit, high sensitivity, high specificity and high detection throughput can be realized, and the method is a rapid and accurate type screening and identifying method.

The invention discloses a method for detecting ferric ions through triphenylamine dye. The method comprises steps as follows: (1), the triphenylamine dye is dissolved in a hydrophile organic solvent, a triphenylamine dye stock solution is prepared and diluted with water, and a triphenylamine dye containing water solution is prepared; (2), a to-be-detected sample is added dropwise, whether fluorescence of the water solution is quenched or not is observed under excitation of light with a wavelength of 365 nm, if the fluorescence of the solution is quenched, the sample contains the ferric ions, cyanide ions or sulfite ions, nuclear magnetic resonance hydrogen spectroscopy is used for aiding in distinguishing, and whether the sample contains the ferric ions can be determined. The method has high selectivity and sensitivity and is basically not interfered by other cations; the detection limit is low and can reach a ppb level; response is quick and is made in 1 min; the method has the advantages of low detection cost, simple operation and the like.

The invention discloses a method for measuring the content of furfural in crude aldehyde. The content of furfural in crude aldehyde is calculated by drawing a refractive index-furfural content standard curve. Because the indicator of refractive index is specified in the technical indicator of industrial furfural, and furfural manufacturers have refractive index testers, so the furfural manufacturers do not need to purchase additional expensive analytical instruments by adopting the method disclosed by the invention, thus reducing the detection cost, meanwhile, the detection method disclosed bythe invention is short in test time, and thus can be applied to the rapid detection of the content of furfural in crude aldehyde.

The invention discloses an immunofluorescence kit for quantitatively detecting the content of troponin I and a preparation method. The preparation method comprises the following steps: preparing a troponin antibody-large-particle fluorescent particle conjugate; preparing a nitrocellulose membrane labeled antibody; assembling a reagent card; preparing a TNI calibration product; establishing a standard curve; calculating the content of the troponin in a sample to be detected. The immunofluorescence kit for quantitatively detecting the content of the troponin I comprises a nitrocellulose membrane, a reagent and the calibration product. The lowest detection limit of the kit can reach 0.1ng/ml and the requirement of clinical application is met; the fastest time of a process from sample acquisition to detection result presentation only needs 10 to 15 minutes so that more expensive time for patients is provided, and illness states of the patients can be dynamically detected. The immunofluorescence kit for quantitatively detecting the content of the troponin I has good result relevance, no remarkable difference and an accurate and reliable detection result, and can be used for clinically replacing imported products; the detection cost is greatly reduced.