49results about How to "Accurate Data Reference" patented technology

The invention provides a refrigerant mass and flow measuring method and device and a measuring instrument. The method is used in a refrigerating system and comprises the steps that the evaporation pressure and the condensation pressure are obtained; the air suction temperature and the exhaust temperature of a compressor are obtained, and the compressor shell surface temperature, the environment temperature around the compressor and the compressor consumption power are obtained; the jetting temperature of an intermediate pressure container is obtained, and the oil content of a refrigerant mixture is obtained; a corresponding first enthalpy value, a corresponding second enthalpy value, a corresponding third enthalpy value, a corresponding fourth enthalpy value, a corresponding fifth enthalpy value, an enthalpy value difference and the heat exchange amount of the compressor and the outside environment are obtained through calculation according to the obtained various parameters; and according to the first enthalpy value, the second enthalpy value, the third enthalpy value, the fourth enthalpy value, the fifth enthalpy value, the enthalpy value difference, the heat exchange amount, the consumption power of the compressor and the oil content of the refrigerant mixture, the mass and flow of the refrigerant in the refrigerating system are obtained through calculation. According to the scheme, non-intrusive and high-precision measurement on the mass and flow of the refrigerant is achieved, bad influences brought to the refrigerating system in the measurement process are avoided, and the user experience is improved.

The invention provides a mass and flow measuring method and a device of a refrigerant in a refrigerating system and a measuring instrument. The method comprises the steps of: obtaining an intake temperature of a first compressor, an exhaust temperature of a second compressor, an evaporation pressure, a condensation pressure, shell surface temperatures of the first and second compressors, a surrounding environment temperature, a total consumption power, a spraying temperature, a first supercooling temperature, a second supercooling temperature and an oil content of a refrigerant mixture; calculating corresponding first, second, third, fourth and fifth enthalpy values, enthalpy value differences and total heat exchange quantities of the first and second compressors with external environment according to the obtained data; and calculating the mass and the flow of the refrigerant in the refrigerating system according to the first, second, third, fourth and fifth enthalpy values, the enthalpy value differences, the total consumption power, the total heat exchange quantities and the oil content of the refrigerant mixture. The method realizes non-invasion and high-precision measurement of the mass and the flow of the refrigerant in the refrigerating system, prevents adverse effect on the refrigerating system in the measuring process, and improves the user experience.

The invention provides a method for determining the content of microplastics in seawater and organism-absorbed microplastics, wherein the method includes the following steps: collecting seawater in anenvironment into a container; placing a fluorescent powder material having stickiness in the container, stirring, and carrying out fluorescence labeling of the microplastics in the seawater; adding acertain amount of seawater-density solution, and stirring; removing a static sediment at the bottom of the container, and determining the concentration of the fluorescent microplastics in the seawater by a fluorescence spectrometer; placing living marine organisms in a container, and culturing for a period of time; removing the living marine organisms, and then determining the concentration of the fluorescent microplastics in the seawater in the container by the fluorescence spectrometer; and dissecting the living marine organisms, collecting target tissues and organs, and determining the concentration of the fluorescent microplastics in various target tissues and organs. The method provided by the invention can accurately detect the content of the microplastics in the seawater environment and the absorption condition of the organisms on the microplastics in the environment, and has positive significance on protection of the environment and treatment of the microplastics.

The invention discloses a quick detection method for a salient object. In the method, wavelet transformation is executed on a to-be-detected image many times, the size and the position of the salient object are determined according to high-frequency band data which is obtained through wavelet transformation, and then, an accurate saliency value is obtained through a center-perimeter histogram algorithm, thus, the salient object is detected accurately. In comparison with the prior art, the method provided by the invention has the benefits of high detection efficiency and accurate localization.

The invention discloses an elevator scene based advertisement pushing method and device. The pushing method comprises the following steps that whether there are people in an elevator is detected in acyclic way; if YES, face recognition is carried out on the people to obtain face identification data, and the face identification data is uploaded to a background management system; the background management system extracts universality information of the face identification data; and according to the universality information, an advertisement player plays advertisements related to the universality information in an advertisement library. According to the invention, real-time face identification is carried out on the basis of face identification firmware in a mainboard of an elevator advertisement media terminal, the face identification data is uploaded to the background management system, the background management system extracts universality of the face identification data, a lower screen of a double-screen terminal of the elevator plays advertisements aimed at the people with the universality in an inter-cut way, and an upper screen of the terminal plays advertisement in an cyclic way. At the same time, the background management system carries out big data analysis on the face identification data, the passenger flow of a building where the elevator advertisement media terminal is placed is calculated, and accurate data reference is provided for an advertiser.

The invention discloses a method and equipment for monitoring fall damage of farm houses in an earthquake stricken area. The method comprises the following steps of identifying house structures of the farm houses according to remote-sensing images before the disaster; dividing the farm houses with the same house structure in the same seismic intensity area into the same block; interpreting remote-sensing images after the disaster and determining a first ratio of the farm houses of different damage types in each block according to an interpreted result; determining a second ratio of the farm houses of different damage types in each block according to survey data of a disaster scene; and determining a final ratio of the farm houses of different damage types in each block according to the first ratio and the second ratio. According to the method and the equipment, the damage condition of the farm houses in the disaster area can be more objectively and accurately mastered, and the damage condition of the farm houses in the whole disaster area can be mastered by utilizing the incomplete remote-sensing data especially under the condition that the remote-sensing data cannot cover the whole disaster area.

The invention discloses an online live shopping platform data analysis processing method, system and device and a computer storage medium. The online live shopping platform data analysis and processing system comprises a live commodity information acquisition module, a viewer information acquisition module, a live interaction information acquisition module, a live sales information acquisition module, a data processing and analysis module, a database and a display terminal. Comprehensive analysis is carried out on the number of viewers, the watching duration of each viewer, the number of likes of each viewer, the number of comments of each viewer, and the trading volume and the return volume corresponding to each commodity type, the problem that the analysis content of the existing live shopping platform data has one-sidedness and the authenticity of the analysis result cannot be guaranteed is solved, efficient management and control of false live shops are realized, the return rate of shopping personnel is greatly reduced, and the consumption experience of the shopping personnel is guaranteed.

The invention discloses an electrical equipment self-checking device of a high-speed magnetic levitation traction system. The electrical equipment self-checking device comprises: a low-power converter, which is used for outputting alternating current with k-th frequency during a k-th test; a filter having at least N states; a controllable output switch; a detection circuit, which is used for measuring output voltage and current; a first temperature measuring device, which is used for measuring the temperature of a feed cable and each stator section; a self-checking controller, which is used for sequentially carrying out N tests, controlling the filter to be in a state corresponding to the k-th test when the k-th test is carried out, sequentially carrying out tests from a first stator section to an M-th stator section under the k-th test by controlling a stator switching station, and when any stator section is tested, based on the output of the detection circuit and the first temperature measuring device, calculating circuit characteristics. By applying the scheme of the invention, a comprehensive and precise self-checking result can be obtained. The invention further provides an electrical equipment self-checking method of the high-speed magnetic levitation traction system, and the corresponding effect is achieved.

The invention discloses a device for manufacturing large-are micro-nanostructures in batches and a working method of the device. According to the device, the precision and the quality of imprinted patterns and the efficiency and the reliability of micro-nano imprinting equipment are improved, and the service life of a mold is prolonged. According to the technical scheme, the device comprises a base plate, vertical guide rods are fixedly arranged on the base plate, the tops of the guide rods are fixedly connected with a top plate, a support plate is arranged in the middles of the guide rods ina penetrating mode, a driving device is connected with the support plate to drive the support plate to move up and down, and a pressure detection module is arranged between the driving device and thesupport plate; and an auxiliary imprinting module, a main imprinting module and a solidification module are sequentially connected to the bottom of the support plate from front to back, the auxiliaryimprinting module comprises an imprinting roller, a roller shaft is arranged in the middle of the imprinting roller in a penetrating mode, the two ends of the roller shaft are connected with imprinting roller connecting frames, the tops of the imprinting roller connecting frames are connected with a reciprocating mechanism through auxiliary imprinting module guide rods, and the reciprocating mechanism can drive the imprinting roller to move up and down.

The invention relates to a method and device for determining ambient light for terminal equipment, the equipment and a medium. The method comprises the steps: determining screen light leakage information corresponding to brightness information of a display screen; obtaining photosensitive information through a photosensitive element; and determining the ambient light information according to the screen light leakage information and the photosensitive information. By using the method disclosed by the invention, the influence of the screen light leakage information on the photosensitive element can be obtained, the accurate ambient light information can be obtained, accurate data reference is provided for the terminal equipment, and the reliability of controlling the terminal equipment according to the ambient light information is improved.

The invention relates to the technical field of biology and particularly relates to a kit for detecting the content of fibrinogen. The kit comprises a thrombin reagent, an imidazole buffer solution and constant-value plasma, wherein the thrombin reagent comprises thrombin, imidazole, calcium chloride, mannitol, peptone, bovine serum albumin and sodium azide. A proper preparation scheme of the thrombin reagent and the imidazole buffer solution is determined and an in vitro diagnosis kit for clinical detecting the content of the FIB of human plasma in a hospital is researched. The thrombin reagent particularly contains Ca<2+> to reduce or supplement inhibited calcium ions in a clinical blood sample, an in vivo normal coagulation process is more ideally simulated and a more accurate data reference is provided for clinical detection. The basic performance of the kit reaches the industry standard requirements; the kit is high in accuracy, wide in detection range and good in stability and can be further popularized and applied to the market.

The invention discloses a method and a system for collectively counting the average waiting time of bus physical stations. A data acquisition module receives bus GPS historical data of 5 days; a datapreprocessing module modifies a data structure of a front station and a rear station in a bus GPS historical data set into a single-station structure, combines the data sets of the front station and the rear station, modifies the GPS time data format of the combined data set, and generates a time variable which can be calculated by a physical station module to match the two data sets of the line station and the physical station and collectively count the line station number as a physical station number; a data calculation module is used for counting the number of buses arriving at the successfully matched physical stations in each day and each time period, and averaging the number of buses according to the number of days to calculate the average waiting time of each physical station duringmorning and evening peak hours and peak hours according to the interval time of each time period. According to the invention, the effectiveness and accuracy of bus GPS data can be improved, and the average waiting time of each physical station during morning and evening peak hours and peak hours can be obtained.

The invention provides a steel cable strength testing device for coal equipment, and relates to the technical field of steel cable strength detection, so as to solve a problem that when a conventionalsteel cable strength detection device is used for detecting a steel cable, one section needs to be wound and fixed and then is clamped for stretching detection, so the tensile strength detection result is affected due to the fact that the winding position is prone to abrasion during tensile detection, a steel cable is prone to disengagement in the pressurizing and stretching process due to the fact that only a hydraulic clamping mode is adopted, and in the steel cable detection process, when the steel cable breaks off a steel wire, surrounding detection personnel are prone to being injured bybreakage. The device comprises a detection bench, and a control computer is fixedly mounted at the right end of the side wall of the front end of the detection table. Due to the fact that the hydraulic mechanism body is the electric air cylinder, torque changes of the left end of the connecting rod can be detected through the load sensor, then detection signals are converted into electric signalsthrough the photoelectric encoder, the electric signals are transmitted to an external control computer to be collected and recorded, and accurate data reference is provided for strength detection.