35 results about "Characteristic ratio" patented technology

The invention discloses a radio-frequency source frequency calibration method for jump frequency from direct tracing to a high excited state. According to the method, energy level splitting is produced by using the quantum interference effect of high excited atoms under the action of a radio-frequency field and an electric field, and the frequency of the measured radio-frequency field can be effectively traced to the energy level interval of atoms by measuring the characteristic ratio of two split transmitted spectrum peaks. The frequency measuring basis can be directly compared with the jump frequency of atoms, so that the accuracy of frequency measurement is effectively improved. The method can directly trace the frequency of the radio-frequency field to the jump frequency of atoms, a new method is provided for the frequency measurement of the high radio-frequency field, and the method has good measurement accuracy and self-calibration property.

It is possible to reduce errors generated between multiple D / A conversion paths. A characteristic acquisition device includes [1] an arbitrary signal generator that converts a first (second) input digital pattern into a first (second) output analog pattern, [2] a digitizer that converts a first input analog pattern into a first output digital pattern, and [3] a characteristic acquisition device that includes a first transmission characteristic deriving unit that derives a first transmission characteristic which converts the first input digital pattern into the output digital pattern where the input analog pattern is the first output analog pattern, a second transmission characteristic deriving unit that derives a second transmission characteristic which converts the second input digital pattern into the output digital pattern where the input analog pattern is the second output analog pattern, and a transmission characteristic ratio deriving unit that derives a transmission characteristic ratio which is a ratio relating to the first transmission characteristic and the second transmission characteristic.

A polarizing film comprising a stretched film containing iodine, wherein an absorbance characteristics ratio of ((an absorption peak A in a wavelength range of 550 to 650 nm) / (an absorption peak B in a wavelength range of 450 to 520 nm)) is no more than 1.5 when the polarizing film is arranged in a crossed Nicol, form a liquid crystal display for color display that provides as neutral hue as possible, and gives good black color display, and as a result gives an outstanding reproducibility of color.

The present application relates to a method, an apparatus and a storage medium for locating QR codes. For automatically locating a plurality of QR codes in image of any size, the invention provides an apparatus for locating at least one QR code in an image, comprising: characteristic ratio detection means for detecting the potential QR code location symbol areas by carrying out a plurality of detections for detecting the characteristic ratio of the QR code; critical edge detection means for detecting the critical edges of the potential QR code location symbol areas so that the false areas are excluded; location symbol grouping means for matching the detected QR code location symbol areas into potential QR codes; and verification means for excluding the false QR codes. The invention also provides a corresponding method for locating at least one QR code.

The invention discloses an oil and water layer recognition method suitable for a volcanic reservoir. The oil and water layer recognition method comprises the following steps of performing inversion processing on an echo string by using nuclear magnetic logging data in a dual waiting time mode to obtain a long waiting time T2 spectrum and a short waiting time T2 spectrum; then performing differential spectrum processing to obtain a difference spectrum reflecting oil and gas information; performing integral processing on the difference spectrum to obtain difference spectrum porosity (Diff_Por); determining sensibility of various hydrocarbon components on an oil and water layer by gas logging data establishing a hydrocarbon characteristic ratio (Ratio_C); establishing a cross plot of the difference spectrum porosity and the hydrocarbon characteristic ratio according to existing oil testing data and determining a distinguishing boundary of the oil and water layer; extracting the difference spectrum porosity and the hydrocarbon characteristic ratio of a stratum of which oil and water are about to be recognized according to the previous steps; and effectively recognizing the oil and water layer by using the established cross plot. On the basis of nuclear magnetic differential spectrum processing, processing is carried out further to obtain the difference spectrum porosity, the cross plot is established by the difference spectrum porosity and the hydrocarbon characteristic ratio obtained by the gas logging data, and then the oil and water layer of the volcanic reservoir can be recognized.

A polarizing film comprising a stretched film containing iodine, wherein an absorbance characteristics ratio of ((an absorption peak A in a wavelength range of 550 to 650 nm) / (an absorption peak B in a wavelength range of 450 to 520 nm)) is no more than 1.5 when the polarizing film is arranged in a crossed Nicol, form a liquid crystal display for color display that provides as neutral hue as possible, and gives good black color display, and as a result gives an outstanding reproducibility of color.

An apparatus and method is presented for controlling the quality of a mass density measurement of a multiphase fluid mixture including a plurality of fluid fractions and a plurality of constituting elements. The method includes the steps of: submitting a measuring pipe to a flux of high energy photons and measuring count rates; determining a mass density of the multiphase fluid mixture based on count rate measurements in a first and second energy windows; determining an electronic density of the multiphase fluid mixture based on count rate measurements in a third energy window; and comparing the electronic density to the mass density of the multiphase fluid mixture.

The invention relates to an apparatus for diagnosing the function of endothelial cells of the blood vessels, belonging to the medical electronic apparatus. The apparatus for diagnosing the function of endothelial cells of the blood vessels comprises a peripheral circulation detection system, an automatically controlled pressurizing system, a man-apparatus interface, an embedded hardware circuit, a software algorithm module and the like which can be assembled together to form the vertical apparatus. The apparatus is used for testing the function of endothelial cells of the vessel by observing the fluctuation of the blood vessels and the blood flow of the fingertips, applying compression pressure to the blood vessels of the fingertips, observing the change of the functions of the peripheral tension which is generated after the additional compression pressure is released, obtaining the complex change of the blood flow waveforms and the specific capacity, and describing the change of the blood vessels expansion which is generated after the additional compression pressure is released according to the change of the chaotic attractors with phase spaces, wherein the chaotic attractors with phase spaces can be used for deriving the intrinsic characteristic ratio so as to obtain the change rate of an intrinsic axis for contrasting the scales of the chaotic attractors in the phase spaces and the change rate of various chaotic invariants. The % FMD can be obtained according to the change rate of the intrinsic axis and can be well combined with the function of endothelial cells of the blood vessels so as to assess and diagnose the function of the endothelial cells of the blood vessels.

The invention discloses a bearing fault diagnosis method based on morphological top hat product filtering of an optimal scale. The diagnosis method comprises: mounting an acceleration sensor near thebearing to acquire bearing vibration signals and determine the initial range of the structural element scale; performing morphological top hat product filtering on the bearing vibration signals at each structural element scale to obtain morphological filtering results of a plurality of scales; calculating the third-order accumulation amount diagonal slice and the diagonal slice spectrum of the morphological filtering result of each scale to obtain third-order accumulative amount diagonal slices and diagonal slice spectra of a plurality of scales; calculating the fault characteristic ratio of the diagonal slice spectrum of each scale and determining a diagonal slice spectrum of the optimal scale according to the maximum fault characteristic ratio criterion; extracting the bearing fault feature information from the diagonal slice spectrum of the optimal scale to realize the accurate discrimination of bearing fault types. The bearing fault diagnosis method based on morphological top hat product filtering of an optimal scale is simple and feasible, overcomes the defects of traditional multi-scale morphology analysis, and can improve the diagnosis precision of bearing faults.

A method for controlling the quality of a mass density measurement of a multiphase fluid mixture FM comprising a plurality of fluid fractions and a plurality of constituting elements, the method comprises the steps of: submitting a measuring pipe 3 to a flux of high energy photons and measuring count rates, the measuring pipe being arranged to let the photons pass through the multiphase fluid mixture. determining S3a a mass density ρma<sub2>—< / sub2>mix of the multiphase fluid mixture based on count rate measurements S2a, S2b in a first E32 and second E81 energy window, the first E32 and second E81 energy windows being chosen so that the measurements in said energy windows are mainly sensitive to the fluid fractions, determining S4 an electronic density ρma<sub2>—< / sub2>mix of the multiphase fluid mixture based on count rate measurements S2c in a third energy window E356, the third energy window E356 being chosen so that the measurements in the third energy window E356 are substantially sensitive to the density of the constituting elements, and comparing S5 the electronic density ρel<sub2>—< / sub2>mix to the mass density ρma<sub2>—< / sub2>mix of the multiphase fluid mixture, one of said densities being corrected with a factor depending on the atomic number Z and the mass number A of the multiphase fluid mixture prior to comparison, a difference between both densities indicating the quality of the mass density measurement of the multiphase fluid mixture.

The invention provides a state monitoring device provided with a provided with machine pump online energy efficiency evaluation function. An energy efficiency module is arranged in a CMS acquisition host machine; after sensor data is acquired and energy efficiency is analyzed, real-time energy efficiency analysis results are sent to a software system; after performing HILBERT transform, rotation speed order analysis and FFT analysis on a filtered signal, a fault diagnosis module extracts energy amplitude which corresponds to each anomalous characteristic ratio, compares energy percentage of each anomalous characteristic point with a threshold value, and performs fault alarm while each anomalous characteristic point exceeds the threshold value. The state monitoring device calculates energyconsumption and an efficiency state of a motor, a water pump and a unit in real time through an energy efficiency analysis module of the state monitoring device, so that energy consumption analysis data and fault diagnosis data are provided on line in real time.

The invention discloses an arc sensing seam tracking control method and a device based on harmonic analysis, which are used for detecting seam deviation and adjusting the position of a welding gun in a special automatic welding machine. The method comprises the steps of performing hardware filtering processing on an output signal of an arc sensor first, then conveying to a control system for data sampling and software filtering processing, detecting seam lateral deviation on data after software processing by adopting a biharmonic amplitude characteristic ratio method, detecting seam vertical deviation by adopting a scanning space weighted integral differential method, and respectively outputting enable signals to two motor drivers by the control system according to lateral and vertical deviation values so as to drive a lateral motor and a vertical motor, so that a cross sliding frame moves, and the welding position of the welding gun installed on the cross sliding frame is adjusted. By adopting the method, the seam lateral deviation and the seam vertical deviation can be accurately detected, the antijamming capability is high, and the method can be used for automatic correction of the welding gun in automatic welding production and is an important guarantee for increasing the automatic welding efficiency and quality.

The invention discloses a test method for decomposition characteristics of sulfur hexafluoride at different overheat fault temperatures. The method comprises: connecting a test system and checking theairtightness of a closed air chamber in the system; cleaning the closed air chamber, injecting SF6 new gas after vacuumizing of the decomposed closed air chamber, and carrying out vacuumizing again,and repeating the process three times; setting a needed simulated fault temperature value and carrying out testing; and extracting SF6 decomposition component sample gas from a gas extraction hole andcarrying out quantitative analysis on the sample component. According to the invention, the characteristics of the decomposition product of hexafluoride hexafluoride at different temperatures can bedetected; the SF6 decomposition component can be detected comprehensively; and the experimental foundation is laid for studying the SF6 over-heat decomposition phenomenon comprehensively and systematically. Besides, a related component characteristic ratio can be configured based on the foundation so as to represent the severity degree and development trend of the overheat fault.

The invention discloses a recovering method of a synchronous nitrosation-anaerobic ammonia oxidation and denitrification process, and belongs to the field of advanced wastewater treatment. In the SNAD (Synchronous Nitrosation-Anaerobic ammonia oxidation and Denitrification) process, NOB (Nitrite Oxidizing Bacteria) can be greatly proliferated due to inappropriate operation, and the denitrification effect of the system is continuously decreased and even broken down. According to the recovering method disclosed by the invention, (1) an aeration rate is adjusted to always maintain the dissolved oxygen concentration in the reaction stage to be under 0.3 mg / L; (2) the hydraulic retention time (HRT) is shortened, and the effluent of the reactor always contains NH4<+>-N (greater than or equal to 10 mg / L); (3) an NaOH solution is added to the inflow, and the pH value of the inflow is increased to 7.8-8.0; (4) an inorganic carbon source is artificially added to the inflow, and the ratio of the basicity to the ammonia-nitrogen concentration is maintained to be 10 (gCaCO3 / Gnh4<+>-N) above. The strategies are maintained to be continuously operated until the characteristic ratio (namely the ratio of a total nitrogen removal amount to the generated nitrate-nitrogen amount) is greater than 20, the total nitrogen removal rate is greater than 75%, and the strategies are continuously operated for more than 10 cycles, and then the synchronous nitrosation-anaerobic ammonia oxidation and denitrification process is considered to be effectively recovered.

The invention belongs to the field of computer vision and relates to a method for recognizing a character based on the affine invariant. The method for recognizing the character based on the affine invariant comprises the following steps: firstly, getting a convex hull from an objective character, constructing a series of straight lines intersecting with the contour of the character, and determining the characteristic ratio value on each corresponding straight line by means of introduction of the affine invariant, namely the characteristic ratio; secondly, combining the characteristic ratios into an eigenvector in sequence, and expressing the eigenvector as a series of characteristic ratio spectrum; lastly, comparing the distances among the characteristic ratio spectrum by means of a DTW algorithm, obtaining the similarity among characters, and conducting character recognition. The experiment shows that the method for recognizing the character based on the affine invariant not only has the higher recognition rate of serious affine deformation but also has a good distinguishing effect on characters which have higher similarities.

The invention provides a line frequency detector. The line frequency detector receives an input signal representing a power source and detects a line frequency of the power source based on the input signal. The line frequency detector includes a first band pass filter having a pass band centered at an upper end of an expected frequency range of the power source and a second band pass filter having a pass band centered at a lower end of the expected frequency range. The input signal is filtered by the first and second band pass filters, generating a first characteristic signal and a second characteristic signal. The line frequency detector determines a characteristic ratio between the first characteristic signal and the second characteristic signal, and maps the characteristic ratio to the line frequency of the power source.

The present invention provides a multi-factor integrated parametric design method for a power split hybrid bus, and power supply efficiency, transmission efficiency, vehicle ride-through cycle requirements and main control strategies are taken into account in the method. The multi-factor integrated parametric design method for the power split hybrid bus comprises the following steps: (1) selecting a reasonable engine control strategy; (2) selecting an engine based on the steady-state operation requirement, wherein the step comprises: carrying out theoretical calculation on the output power of the engine and verifying whether the power of the engine can meet the power requirement under most driving cycle conditions; (3) determining the characteristic ratio of a former PG group according to the transmission efficiency and the working performance of the vehicle, wherein the step is: determining the boundary of the characteristic ratio of the former PG group, and obtaining an optimal characteristic ratio of the former PG group based on the transmission efficiency of the power split system and the working performance of the vehicle; and (4) determining other components of the power split system according to the dynamic performance and operation requirements.

A transducer array for high-intensity focused ultrasound tumor treatment belongs to the field of medical equipment. The present invention is composed of a matching layer and a piezoelectric ceramic sheet. The matching layer is a concave spherical thin-shell bowl-shaped acoustic radiation layer with uniform thickness. All piezoelectric ceramic sheets are glued on the outer surface of the same matching layer. Multiple identical Piezoelectric ceramic sheets constitute a large-aperture co-concave spherical compact mosaic transducer array. The invention has a high array focused sound intensity ratio and symmetrical focused sound field characteristics; the piezoelectric ceramic sheet area of ​​each array element is small, and the manufacturing cost is low; the number of array elements and the number of power amplifier channels are small, and the power amplifier, phase shifting The consistency of the transducer and the matching network is easier to realize, manufacture, and adjust, and the stability and reliability are greatly improved; the common matching layer provides a firm support for the transducer array element, and resonant reinforcement occurs together with the array element The consistency of the resonance of each array element is ensured, and the output sound power of the array is maximized.

The invention relates to a small wave height extraction method based on a water surface state continuous imaging system. The method comprises the following steps: (1) the water surface state continuous imaging system is used for gathering wave echoes in a detection area, the echoes are sampled and imaged, and an N-frame (32 to 128-frame) of echo image sequence is formed; (2) Weibull distribution model parameters satisfied by normal height wave echoes are determined to acquire the offset between a small wave echo kurtosis and the Weibull distribution kurtosis satisfied by normal height wave echoes; (3) a small wave echo texture apparent characteristic ratio is acquired; (4) according to the offset and the echo texture apparent characteristic ratio, wave height factors in a small wave height extraction model are determined; and (5) small wave height data are acquired, the wave height factors are subjected to linear fitting, an empirical correction constant for the small wave height extraction model is obtained, and the small wave height extraction model is thus acquired. The method of the invention is simple, effective, few in occupied resources and is applicable to various types of radar, infrared and visible light imaging systems.

The invention discloses a radio-frequency source frequency calibration method for jump frequency from direct tracing to a high excited state. According to the method, energy level splitting is produced by using the quantum interference effect of high excited atoms under the action of a radio-frequency field and an electric field, and the frequency of the measured radio-frequency field can be effectively traced to the energy level interval of atoms by measuring the characteristic ratio of two split transmitted spectrum peaks. The frequency measuring basis can be directly compared with the jump frequency of atoms, so that the accuracy of frequency measurement is effectively improved. The method can directly trace the frequency of the radio-frequency field to the jump frequency of atoms, a new method is provided for the frequency measurement of the high radio-frequency field, and the method has good measurement accuracy and self-calibration property.

The invention discloses a nanoscale amplitude measuring method of medium-high frequency vibration under low-frequency random disturbance, and relates to an amplitude measuring method of nanoscale medium-high frequency mechanical vibration under environmental low-frequency large-amplitude random disturbance. The nanoscale amplitude measuring method comprises the following steps: 1, detecting the surface of a measured object by utilizing a Michelson interference system to obtain the modulating signal of an optical path difference between reference light and measuring light; 2, utilizing a photoelectric detector to receive a laser interference signal, and converting an optical signal into an interference electrical signal; 3, carrying out frequency analysis on the reference electrical signal by utilizing a discrete Fourier transform algorithm to obtain an amplitude sequence and a frequency sequence, utilizing the amplitude sequence and the frequency sequence to calculate the frequency fs of nanoscale vibration to be measured, determining an odd frequency shift attenuation ratio Ro and an even frequency shift attenuation ratio Re, and utilizing the odd frequency shift attenuation ratio Ro and the even frequency shift attenuation ratio Re to determine a characteristic ratio R; 4, utilizing the characteristic ratio R obtained in the step 3, and utilizing an interpolation method to calculate the amplitude As of the nanoscale vibration. The method is suitable for measuring the nanoscale amplitude of medium-high frequency vibration under low-frequency random disturbance.

The invention discloses a double-symmetrical-tube-shell type sulfuric acid cooler, and relates to a heat exchanging device for recovering heat in the high-temperature concentrated sulfuric acid cooling process. The double-symmetrical-tube-shell type sulfuric acid cooler comprises two completely-symmetrical and completely-same tube-shell type heat exchanging sections and structurally comprises an acid inlet tube box, the heat exchanging section A, an acid connecting tube box, the heat exchanging section B, an acid outlet tube box and a connecting water tube or steam pocket. If the shell sides of the two heat exchanging sections are connected with the steam pocket, a steam generator is formed, and if the shell sides of the two heat exchanging sections are connected through a tube, a water heater is formed. The temperature values of an acid inlet and an acid outlet and the temperature value of acid in the connecting tube box are measured online, meanwhile, the temperature value of saturated steam or the temperature values of a water inlet and a water outlet and the temperature value of water in the connecting water tube are measured, and the characteristic ratio of the sulfuric acid cooler is calculated through the temperature values. Once leakage occurs, the practical value of the characteristic ratio can be remarkably changed, and therefore the leakage can be monitored.

The invention provides a power characteristic test method of a lithium ion battery. The power characteristic test method comprises a continuous charge and discharge power characteristic test, a continuous charge and discharge power characteristic ratio, and a pulse power characteristic test. The continuous power characteristics of the battery are tested at different temperatures to better reflectthe power characteristics of the battery in actual environments. The continuous charge and discharge power characteristic ratio is proposed to better reflect the advantages and disadvantages of the power characteristics of the battery and facilitate the comparison of the power characteristics of the product. The power characteristics of the battery under different ambient temperatures and charge state can be tested and simulated more comprehensively by the pulse power characteristics. The voltage change condition of the battery can be tested according to the actual power use conditions.

An image forming apparatus includes: an image supporting member; a charge member for charging a surface of the image supporting member; an exposure member for forming a latent image on the surface of the image supporting member charged by the charge roller; a developer supporting member for developing the latent image formed by the exposure member to form a toner image; and a transfer member for transferring the toner image formed by the developer supporting member to a medium. The image supporting member has a dark decay characteristic ratio of 95% or less relative to charges having a polarity opposite to that of a charge voltage applied by the charge member.

The invention discloses an arc sensing seam tracking control method and a device based on harmonic analysis, which are used for detecting seam deviation and adjusting the position of a welding gun in a special automatic welding machine. The method comprises the steps of performing hardware filtering processing on an output signal of an arc sensor first, then conveying to a control system for data sampling and software filtering processing, detecting seam lateral deviation on data after software processing by adopting a biharmonic amplitude characteristic ratio method, detecting seam vertical deviation by adopting a scanning space weighted integral differential method, and respectively outputting enable signals to two motor drivers by the control system according to lateral and vertical deviation values so as to drive a lateral motor and a vertical motor, so that a cross sliding frame moves, and the welding position of the welding gun installed on the cross sliding frame is adjusted. By adopting the method, the seam lateral deviation and the seam vertical deviation can be accurately detected, the antijamming capability is high, and the method can be used for automatic correction of the welding gun in automatic welding production and is an important guarantee for increasing the automatic welding efficiency and quality.

The invention relates to a small wave height extraction method based on a water surface state continuous imaging system. The method comprises the following steps: (1) the water surface state continuous imaging system is used for gathering wave echoes in a detection area, the echoes are sampled and imaged, and an N-frame (32 to 128-frame) of echo image sequence is formed; (2) Weibull distribution model parameters satisfied by normal height wave echoes are determined to acquire the offset between a small wave echo kurtosis and the Weibull distribution kurtosis satisfied by normal height wave echoes; (3) a small wave echo texture apparent characteristic ratio is acquired; (4) according to the offset and the echo texture apparent characteristic ratio, wave height factors in a small wave height extraction model are determined; and (5) small wave height data are acquired, the wave height factors are subjected to linear fitting, an empirical correction constant for the small wave height extraction model is obtained, and the small wave height extraction model is thus acquired. The method of the invention is simple, effective, few in occupied resources and is applicable to various types of radar, infrared and visible light imaging systems.

The invention discloses a recovering method of a synchronous nitrosation-anaerobic ammonia oxidation and denitrification process, and belongs to the field of advanced wastewater treatment. In the SNAD (Synchronous Nitrosation-Anaerobic ammonia oxidation and Denitrification) process, NOB (Nitrite Oxidizing Bacteria) can be greatly proliferated due to inappropriate operation, and the denitrification effect of the system is continuously decreased and even broken down. According to the recovering method disclosed by the invention, (1) an aeration rate is adjusted to always maintain the dissolved oxygen concentration in the reaction stage to be under 0.3 mg / L; (2) the hydraulic retention time (HRT) is shortened, and the effluent of the reactor always contains NH4<+>-N (greater than or equal to 10 mg / L); (3) an NaOH solution is added to the inflow, and the pH value of the inflow is increased to 7.8-8.0; (4) an inorganic carbon source is artificially added to the inflow, and the ratio of the basicity to the ammonia-nitrogen concentration is maintained to be 10 (gCaCO3 / Gnh4<+>-N) above. The strategies are maintained to be continuously operated until the characteristic ratio (namely the ratio of a total nitrogen removal amount to the generated nitrate-nitrogen amount) is greater than 20, the total nitrogen removal rate is greater than 75%, and the strategies are continuously operated for more than 10 cycles, and then the synchronous nitrosation-anaerobic ammonia oxidation and denitrification process is considered to be effectively recovered.

It is possible to reduce errors generated between multiple D / A conversion paths. A characteristic acquisition device includes [1] an arbitrary signal generator that converts a first (second) input digital pattern into a first (second) output analog pattern, [2] a digitizer that converts a first input analog pattern into a first output digital pattern, and [3] a characteristic acquisition device that includes a first transmission characteristic deriving unit that derives a first transmission characteristic which converts the first input digital pattern into the output digital pattern where the input analog pattern is the first output analog pattern, a second transmission characteristic deriving unit that derives a second transmission characteristic which converts the second input digital pattern into the output digital pattern where the input analog pattern is the second output analog pattern, and a transmission characteristic ratio deriving unit that derives a transmission characteristic ratio which is a ratio relating to the first transmission characteristic and the second transmission characteristic.

The invention relates to a radial artery pulse wave based cardiovascular function parameter detection and analysis method and device. The detection and analysis method is characterized by extracting characteristic information and computing cardiovascular function parameters by analyzing the pulse wave series acquired in real time. In the method, an amplitude characteristic ratios method and a yielding point method are combined to detect and analyze the artery parameters, and when the heart function parameters are detected and analyzed, different ranges are set for the pulse waves corresponding to different templates to search for characteristic points, thus ensuring the method to be rapid and accurate. In the detection method provided by the invention, a pulse clip is used for fixing a pulse sensor and the degree of tightness of the pulse clip is adjusted by a control chip according to the strength of the pulse signals, thus enabling data acquisition to be more rapid and accurate. Thedetection device is provided with an air adjusting device which ensures that the blood pressure related data can be acquired in the aeration stage, thus accelerating the speed of data acquisition. Inaddition, a special power source is used for supplying power to the device, thus ensuring the personal safety of the users.