51 results about "Quantity method" patented technology

The present invention discloses a method for ventilating double-hole tunnel network, which comprises the following steps : A. installing two transverse ventilation channels for exchanging air at the appropriate positions of two channels for forming a bidirectional air exchange system; B. designing the most economic air quantity of the double line to one half of the total required air quantity of the channel; C. confirming the positions of the transverse ventilation channels according to a principle that the energy consumption of the ventilation is minimal; D. obtaining the quantity of the airexchanged by the bidirectional air exchange system according to the principle that the air exchange quantities of two transverse channels are equal and the concentrations of the pollutant at the channel outlets are equal for obtaining the air quantity exchanged by the bidirectional exchange system; E. dividing a ventilation network map according to the position of the transverse ventilation channels; F. calculating the ventilation network according to an air quantity balancing law, an air pressure balancing law and a resistance law; G. calculating the pressure of the ventilation network with amesh iteration correction air quantity method; and H. confirming the number of sets and standards of the fans according to the pressure increase and air quantity required by each ventilation segmentof the network. The method for ventilating double-hole tunnel network cancels the vertical ventilation well, greatly reduces the ventilation equipment and can greatly reduce the building cost and operation management cost.

The invention discloses a harmonic contribution calculating method applicable to a background harmonic voltage change. The harmonic contribution calculating method comprises the steps that under the condition of a plurality of harmonic sources, the system harmonic impedance is estimated through a leading fluctuation quantity method; clustering processing is conducted on background harmonic voltage data through a mean shift algorithm according to the change conditions of the background harmonic voltage, and the background harmonic voltage data are divided into different data segments according to background harmonic voltage values; harmonic contributions of the data segments are calculated through a partial least square method, weighted summation is conducted, and therefore the harmonic contribution in a focused time period can be obtained. The harmonic contribution calculating method improves accuracy of harmonic contribution calculation, and can effectively eliminate the influence of the background harmonic voltage change on harmonic contribution calculation.

The invention relates to a harmonic contribution division method and a harmonic contribution division system. The harmonic contribution division method comprises the following steps of acquiring harmonic voltage data of a bus and harmonic current data of a harmonic source to be calculated on a feeder line; calculating background harmonic impedance by using a leading fluctuation quantity method according to the harmonic voltage data and the harmonic current data; and dividing harmonic contributions of the harmonic source to be calculated by using a quantile regression method according to the harmonic voltage data, the harmonic current data and the background harmonic impedance. The background harmonic impedance is estimated by the leading fluctuation quantity method, fluctuation quantity with a leading function is screened out to calculate the background harmonic impedance, influences of background harmonic and measurement noise fluctuation on a background harmonic impedance estimation result are restrained effectively, and the background harmonic impedance is calculated accurately; and the background harmonic current is calculated according to the background harmonic impedance, and quantile regression is performed to obtain the harmonic contributions of the harmonic source. Calculation deviation caused by background harmonic fluctuation can be reduced, division accuracy is improved, and the stability and the data utilization rate are high.

The invention discloses a fluctuation quantity method-based user side harmonic emission level practicality estimation method, belongs to the field of power quality harmonic treatment, is used for dividing rights and liabilities of harmonic pollution on a power supply side and an electricity side and belongs to a theoretical method practicality technology. The invention provides a complete processfor estimating the user side harmonic emission level by employing a fluctuation quantity method, provides a method for quantizing deviation between a power supply side harmonic impedance amplitude estimated value and an actual value, provides power supply side harmonic impedance amplitude estimated value accuracy for engineering, and easily and quantitatively judges whether the estimated value meets the requirement on engineering accuracy. In the method, various problems which possibly exist in actual engineering are considered theoretically. The conception of the time-varying dynamic phasor-based fluctuation quantity method is stated, the conventional harmonic impedance estimated value algorithm is improved, the least squares fitting algorithm which is wider in applicability and higher in accuracy is provided to estimate power supply side harmonic impedance; therefore, a practical flow more accords with actual operating conditions of a power system.

The invention relates to a wastewater disposal intelligent optimization control aeration quantity method which is characterized by adopting the control mode combining various intelligent control methods to enable concentration of dissolved oxygen in various aeration tanks to be kept within a range of target requirements. A fuzzy expert control method is adopted to control frequency of an air blower and achieve accurate adjustment of aeration quantity. A method combining a predictive control technology and the fuzzy control technology is adopted to control an air flow adjusting valve and achieve effective distribution of the aeration quantity to two or more parallel biological aeration tanks. Due to the fact that the fuzzy control technology is adopted to decouple a control function coupling effect in control to the air flow adjusting valve and the frequency of the air blower, water quality requirements and energy-saving requirements can be better met.

The invention discloses a coal quality on-line detecting method based on a dominating factor and combined with a partial least squares (PLS) method, which comprises the following steps of: firstly considering the self-absorption effect by using the intensity of spectral lines of a group of calibration coal samples; building a relation formula of elements to be tested and corresponding characteristic spectral lines thereof through the least squares method; then considering the mutual interference effect of the elements and modifying residual errors by using the intensity of the spectral lines of the other elements; and finally modifying the residual errors obtained in the last two steps through the PLS method, wherein the finally obtained formula improves the disadvantages of incapability of processing non-linearity effect and poor prediction accuracy of the PLS to a certain extent through combining the traditional fixed-quantity method of LIBS (Laser-induced Breakdown Spectroscopy) and the PLS. The method can explain the fixed-quantity information of element concentration by using the main characteristic spectral lines and can introduce a non-linearity form, thereby modifying the residual errors caused by calibration curve fitting by using a large amount of information in the spectral lines and avoiding the introduction of excessive noise signals, and reducing the influence on maternal effect at the same time so as to achieve the higher measurement accuracy.

A combinational housing structure comprising several housing units, every housing unit has a rectangular steel frame as backbone, several wedge holes are on the top, bottom and four comers of the steel frame, several hook parts corresponding to four walls are on the edges of the steel frame; four walls, one floor and one ceiling can attach to the steel frame; pipes for utility, water are inside the walls, ceiling and floor, extension connectors are on both ends of these electricity and water pipes for extension connection; windows and doors are on the walls. Based on the structure described above, the housing units are made in advance for different functions in rapid, large quantity method for easy transportation and assembly; these housing units are shipped on site for fast installation, the pipes are connected with extension connectors; such can assemble a full function shelter as temporary building or for rescue purpose.

The invention relates to a car-mounted APP tracking car electric quantity method of an electric car time-sharing rental system, a user connects a charging pile for charging a car via a car-mounted APP, a starting place and a destination for a car rental travel are inputted by the car-mounted APP, type and power are reported by the charging pile, the type and the power of the car can be viewed from the car-mounted APP, charging time needed from car charging to electric quantity meeting the need of the user can be calculated by the car-mounted APP according to current car electric quantity, the power of the charging pile and the car and estimated electric quantity needed for the travel of the user so as to facilitate reasonable travel arrangement of the user. According to the method, electric quantity consumption for the car rental travel can be estimated by the car-mounted APP, charging time needed for the car can be calculated, car charging electric quantity is tracked so as to facilitate the user to customize a travel plan, the user can choose a car most matched with own travel plan to ensure the electric quantity of the rented car meets the need of the travel of the user, and electric quantity depletion phenomenon during driving can be effectively avoided.

The invention discloses an urban oil and gas pipeline major accident risk early warning and assessment method, and belongs to the technical field of pipeline risk early warning and assessment. The method comprises the steps that a factor set is determined according to risk factors in the pipeline operating process; weight matrixes of all levels of factor indexes are determined by the use of an interval analytical hierarchy process relative scalar quantity method; risk assessment is conducted on the indexes, so that a warning degree division result is obtained; and risk assessment results of various factors are obtained on the basis of risk quantity indexes, and relative risk values are calculated through the combination of leakage influence coefficients. According to the urban oil and gaspipeline major accident risk early warning and assessment method, a kent pipeline risk assessment method and a risk early warning method are combined, and therefore the purposes that the pipeline warning degree is judged, and an early warning response is conducted can be achieved on the basis of risk assessment of all risk factor warning omens and overall consideration of the pipeline accident occurrence probability and the consequence severity.

The invention discloses a magnetic field analytic calculating method for a surface-mounted permanent magnet motor with a tilted trough structure and relates to the field of permanent magnet motor magnetic field calculating technologies. The magnetic field analytic calculating method comprises the following steps: a motor is axially divided into Nz sections of magnetic field solution domains in three-dimensional space, each section of magnetic field solution domain is divided into four sub-domains, the magnetic vector potential partial differential equations of the sub-domains of each section are built respectively, the general solutions of the sub-domains of each section solution domain are worked out by adopting the separation quantity method, and the boundary conditions among the sub-domains of each solution domain are built to determine fourier coefficient values; the definite expressions of the magnetic vector potential partial differential equations of the sub-domains, namely, the magnetic vector potential functions of the sub-domains, are worked out; air gap magnetic flux density expressions are calculated based on the magnetic vector potential functions of the sub-domains, and the magnetic linkage, the cogging torque, the counter emf and the electromagnetic torque of the motor can be further calculated. According to the invention, the magnetic field calculation and performance analysis of the surface-mounted permanent magnet motor provided with a stator tilted trough can be conducted rapidly and accurately.

The present invention discloses an actual measurement and actual quantity method and system for engineering construction supervision quality acceptance. The key points of the technical scheme comprises: receiving project information input by a user; invoking matched pre-recorded quality regulation information according to the project properties of the project information, wherein there are several kinds of quality control information in the quality regulation information, and each kind of quality control information has a corresponding quality control threshold; inputting actual measurement data according to an uploaded actual measurement image; and comparing the actual measurement data with the quality control threshold in the corresponding quality control information, and generating the corresponding acceptance information according to a comparison result. This application integrates the field inspection and acceptance criteria, acceptance methods, acceptance results, actual measured data of the acceptance process and on-site impact data management in the housing construction and municipal public works to form a field quality establishment work management system with multiple functions of management, analysis, traceability and the like, thereby being efficient, fast and convenient.

The invention provides an arbor three-dimensional green quantity method and belongs to the technical field of measurement methods, which particularly relates to a three-dimensional green quantity method for arbors. Based on three-dimensional green quantity method for arbors, the crown actual shape of an arbor can be truly reflected. The method comprises the steps of scanning standing trees of different tree species and different diameter classes by means of a three-dimensional laser scanner; scanning each individual sample tree; conducting the treatment within the industry according to the specific process of coordinate correction; conducting the corresponding point matching method and compulsively constraining the data of each observation station in the coordinate system of a single instrument; three-dimensionally modeling; piecing together point cloud data measured by all observation stations to be a complete point cloud model of a measurement target; modeling the detail of the measurement target to complete the modeling of the measurement target; generating the point cloud data of trees; application handling; generating a cross-section drawing, a projection drawing and a contour map; processing the point cloud data and outputting the processed point cloud data via a data interface; and conducting the measurement on the model.

The invention discloses an amplitude fluctuation quantity kurtosis detection principle-based harmonic contribution quantification method. The method includes the following steps that: step 10) harmonic measured data are collected; harmonic voltage amplitude and harmonic current amplitude data are collected, so that a harmonic amplitude data sequence is formed; step 20) the parameters of a slidingwindow are set: a sliding window length and a sliding distance are set; step 30) kurtosis value calculation and subsequence screening are performed: the kurtosis values of the harmonic voltage amplitude and harmonic current amplitude are calculated sequentially according to sliding window on the basis of the harmonic amplitude data sequence, and subsequences of which the kurtosis values are not equal to expected values are screened out; and step 40) harmonic voltage contribution calculation is carried out: the system side equivalent harmonic impedance of the subsequences which are screened out are estimated through a fluctuation quantity method, and a harmonic voltage contribution is calculated. According to the method, the harmonic pollution contribution can be quantified just with the amplitude data of harmonic waves required to be monitored, and therefore, the calculation amount of the method is small, the engineering application of the method can be facilitated, and assistancecan be provided for harmonic control and the formulation of a reward and punishment mechanism.

The invention relates to a device and a method for testing absorbance by an electric quantity method, in particular to a device and a method for continuously measuring the absorbance of an adsorbing agent, comprising an absorber, an evaporator / condenser, an absorber heating / cooling loop, an evaporator / condenser cooling water loop, a compressed air blowing system, a data acquisition and heater control system, an evacuation vacuum valve and a switching vacuum valve, wherein the absorber heating / cooling loop comprises a water pump, a constant temperature hot / cold water bath and a corresponding pipeline; the evaporator / condenser cooling water loop comprises a water pump, a constant temperature water bath and a corresponding pipeline; and the evacuation vacuum valve and the switching vacuum valve are arranged between the absorber and the evaporator / condenser. The device and the method have more favorable controllability of test condition, simple measurement method, low test cost and higher measurement precision, are free from the restriction of environmental temperature and can simulate the absorbing environment of an adsorbing agent under the refrigerating condition, measure the absorbance on a liquid substance at the normal temperature by the adsorbing agent, obtain the absorbance of the adsorbing agent by the electric consumption of a heater, repeatedly carry out the measurement process and measure the circulating absorbance in the circulating process of absorbing refrigeration. The invention can be used for testing the adsorbing performance of various adsorbing agents for refrigeration.

The invention discloses a report uplink service quantity method, a middle node and channel switch method and a system; wherein, the channel switch method comprises that when the uplink service is established in a reinforced uplink special channel E-DCH, an uplink service quantity information is reported to a wireless network controller by a special measurement type or the uplink service quantity information is reported to the wireless network controller in an extension E-DCH channel data frame type, and the wireless network controller switches the E-DCH channel according to the uplink service quantity information. The invention can achieve the switch and bandwidth adjustment to the E-DCH channel according to the uplink service quantity information when the uplink service of the wireless network controller is established on the E-DCH channel, thus saving cell resource; furthermore, the invention can avoid channel error switch or bandwidth error adjustment caused by unknown service quantity, thus improving the stability of the service which is carried on the E-DCH channel.

The invention relates to a method for setting parameters of a robustness fractional order PD< mu > controller based on a vector quantity method, and belongs to the technical field of fractional order automatic control. A mathematic model transfer function of a controlled object system is given, a controlled object is written into a controlled object vector quantity mode, a performance index vector quantity mode is written out, a controlled object vector quantity P is corrected through a correction vector quantity L to reach a performance index vector quantity G, the correction vector quantity and a controller vector quantity form a triangle in a complex plane, and a differential coefficient to be set is obtained. The method can reduce calculated quantities, the setting process is simple and easy to understand, and when the controlled object is changed, users only need to calculate the module value, the phase angle and the angular speed of the controlled object, the following formula can be used indiscriminately, and therefore the process of repeatedly deducing an equation is reduced, and the multi-solution problem existing in matlab solutions is solved.

The invention is applicable to the technical field of transformer, and provides a transformer partial discharge fault diagnosis method and an online monitoring device, wherein a nonlinear mapping compression feature quantity method and a Merlin transform algorithm are adopted to extract a feature quantity from a partial discharge signal, and an eigenvector representing the characteristics of the partial discharge signal is formed, and mapped on a feature plane. The extracted feature quantity is clustered by unsupervised fuzzy c-means clustering algorithm to form a plurality of samples, and a phase and a waveform characteristic of each sample after clustering are analyzed, and relevant features are extracted. A sample fingerprint database is established by using a mathematical morphology particle analysis method to compare each sample, and a neural network algorithm is used to identify a partial discharge signal type pattern. According to the transformer partial discharge fault diagnosis method and the online monitoring device, the type of fault of partial discharge of the transformer is determined.

The present invention provides an electric quantity method and system of smart shoes. The method comprises: obtaining the residual electric quantity of the smart shoes through a preset time interval; when the residual electric quantity is a preset first electric quantity, sending the monitoring information to a first terminal; calculating the duration of reducing the electric quantity of the smart shoes from the saturation condition to a first electric quantity condition through the first terminal, and obtaining the first usage duration; obtaining the duration of reducing the electric quantity of the smart shoes with the preset number of times from the saturation condition to the first electric quantity condition, and obtaining a first historical usage duration; calculating the mean value of the first historical usage duration with the preset number of times, and obtaining a first mean historical usage duration; and when the difference between the first mean historical usage duration and the first usage duration is larger than a preset usage duration differential threshold, the first terminal and the second terminal send the prompt information of replacing an energy consumption device. The electric quantity method and system of smart shoes can analyze the loss condition of the energy consumption device in the smart shoes and timely prompt related staff to replace the energy consumption device in the smart shoes.

The invention relates to a gas quantity method measuring device with a function of acquiring pure gas. The gas quantity method measuring device comprises a reaction bottle, a quantifying device and a gas collecting device, wherein the reaction bottle is connected with the quantifying device through a conduit. The gas quantity method measuring device is characterized by further comprising a buffer bottler for containing the reaction bottle; a sealing cover is arranged at the top part of the buffer bottle; a gas three-way outlet and a separable sample bottle are arranged on the sealing cover; the sample bottle enters the reaction bottle after being separated; a liquid outlet which is connected with one port of the liquid three-way outlet is arranged in the bottom of the buffer bottle; and another port of the liquid three-way outlet is connected with the quantifying device through another conduit. The gas quantity method measuring device has the beneficial effects that the reaction bottle is put into the sealed buffer bottle (which is filled with inert gases) to be reacted, so that the generated gas can be quantified simply and conveniently; and moreover, a pure isotope analysis gas sample can be obtained, so that a later isotope analysis step is simplified, and the test efficiency is improved.

This invention relates to analogue large telephone test control quantities method, which comprises the following steps: pre-setting each second phone calls; getting initial operation system time as first send time; setting timer trigger time gap; after timer triggered, getting system current time and computing the current send time; computing the call numbers generated by this time trigger according to pre-set call number and local send time length for sending; after sending according to real sending number to compute local sending call number occupancy time adding up send time as next time send initial time; waiting for next trigger and dividing the calls into hundred bit, ten bit and units for process.

The present application discloses an electric quantity prompting method, a storage medium, a charging device and a data line. The charging device includes a plurality of electrochromic assemblies, thecharging device having a plurality of discolored regions arranged in sequence, the electrochromic assemblies disposed on a surface of the charging apparatus and covering the discolored regions. Whenthe electronic device is charged by the charging device, the electric quantity information of the current electronic device is obtained; a corresponding number of target discoloration regions are determined from a plurality of discoloration regions according to the electric quantity information; A corresponding voltage is supplied to the electrochromic component in the target discolored area, andthe target electrochromic component displays a color corresponding to the voltage after acquiring the voltage to indicate the current electric quantity of the electronic device. The scheme can promptthe electric quantity through the charging device without awakening the electronic device to view the electric quantity, thus improving the convenience of viewing the electric quantity.

The invention discloses an insect quantity survey method which comprises the following steps: (1) beating a branch carrying insects to ensure that the insects drop into a collecting container arranged below the branch and provided with a piece of wet paper, thereby obtaining a piece of wet paper carrying the insects; (2) placing the wet paper carrying the insects in an insect collecting bag, and sealing the insect collecting bag to obtain a collecting bag filled with the insects, wherein the insect collecting bag contains a substance capable of killing or narcotizing insects; (3) calculating the quantity of the insects in the collecting bag filled with the insects, thereby achieving insect quantity detection. Proved by tests, the insect quantity survey method is accurate and reliable in data, simple and convenient to operate, and low in production cost, and facilitates further classification, identification, number representation, and preparation of insect specimens.

This invention disclose a method and a device for protecting inversion of branch channel units including the following steps: a master control board sends a pre-arrangement order to a protection board by total quantity method, which analyses the order to arranged data and stores them. When the master control board detects the data of a protected board have been revised, it sends the revised part to the protection board by increment, which analyses the order to revise the original data correspondingly and stores them. When carrying out TPS, the protection board takes out the pre-arranged data to match the protection board based on the protected board number. The device includes a master control board, a protected board, a protection board, the master control board includes a total quantity send unit and an increment send unit, the protection board includes total quantity receive / process units, an increment receive / process unit, an order analysis unit and a data process unit.

The invention aims to provide a method for improving the mechanical strength of a binder-free molecular sieve catalyst, and belongs to the field of petrochemical industry. The method includes following specific steps that the binder-free molecular sieve catalyst is soaked into an aluminum salt solution for 1-3 hours, and after drying and calcination, a sample with required strength is obtained, wherein the binder-free molecular sieve catalyst is soaked in the aluminum salt by means of an equal-quantity method, and the content of aluminum salt in the form of aluminum trioxide in the catalyst is 1-30 wt%. Compared with the simply synthesized binder-free molecular sieve catalyst, the mechanical strength of the sample obtained by means of the method can be adjusted and controlled, and the crystallinity is kept high.

The present invention discloses a storage battery state of charge calculation method and device. The method includes the following steps that: the initial state of charge of a storage battery is determined according to an open-circuit voltage method and an artificial neural network method; and the state of charge of the storage battery is calculated through using an accumulated electric quantity method according to the initial state of charge and charging / discharging current values. Thus, with the storage battery state of charge calculation method and device of the invention adopted, the precision of the initial state of charge is improved, and therefore, the prediction accuracy of a charge of state value can be improved finally.

The invention relates to an economic evaluation method of a coal mine gas control trusteeship mode project, comprising the following steps: S1, compiling enterprise quota according to enterprise personnel quality, mechanical equipment degree, technology and management level, etc.; S2: Calculating the engineering cost, including the total income and total cost of the gas control custody project, and the calculation method of the engineering cost adopts the bill of quantities method; S3: performing financial evaluation, obtaining the capital inflows and outflows from the beginning to the end ofthe project, as well as the predicted results of various economic indicators; S4: performing Sensitivity analysis, including unit price of engineering construction subcontracting, engineering construction quantity and collection period; S5: performing Risk evaluation; S6: performing Comprehensive evaluation, through the financial evaluation, uncertainty analysis of the project financial evaluationclassification, combined with the project risk quantitative evaluation of the project risk classification, performing comprehensive evaluation of the gas control engineering project,judging the feasibility of the project, and providing targeted measures.

The invention relates to a wastewater disposal intelligent optimization control aeration quantity method which is characterized by adopting the control mode combining various intelligent control methods to enable concentration of dissolved oxygen in various aeration tanks to be kept within a range of target requirements. A fuzzy expert control method is adopted to control frequency of an air blower and achieve accurate adjustment of aeration quantity. A method combining a predictive control technology and the fuzzy control technology is adopted to control an air flow adjusting valve and achieve effective distribution of the aeration quantity to two or more parallel biological aeration tanks. Due to the fact that the fuzzy control technology is adopted to decouple a control function coupling effect in control to the air flow adjusting valve and the frequency of the air blower, water quality requirements and energy-saving requirements can be better met.

The invention relates to a household gas using quantity real-time data acquisition prompting method. When household gas using quantity equipment is started, the household gas using quantity real-time data acquisition prompting method is activated at the same time; and the expense data output end of a gas using quantity meter subsequently sends a gas using quantity meter expense data to a multithreading transmission module, and synchronously sends the data to a signal multiplier in real time, and through transfer and signal enhancement, the data is sent to a programmable logic controller processor for data unpacking to export an expense effective numerical value, and finally the value is sent to the a picture displaying the gas using quantity expense in real time. The phenomenon that when gas is used at home, the gas using quantity device suddenly terminates gas supply and inevitably results in insufficient gas supply or affects cooking process does not occur.

A wind power system running state grey prediction system based on chaos phase space reconstruction and a method thereof are disclosed. The invention relates to the wind power system running state grey prediction system and the method. By using a traditional method, prediction precision is low and overhauling cost is high. In the invention, the above problems are solved. The wind power system running state grey prediction system based on the chaos phase space reconstruction comprises a wind power generating set (1), a measuring instrument (2) and an upper computer (3). The measuring instrument (2) is formed by a signal acquisition and conditioning circuit (4), an A / D conversion circuit (5), a single chip microcomputer (6), a timing circuit (7), a data storage circuit (8) and a USB interface circuit (9). The method comprises the following steps of 1, carrying out phase space reconstruction; 2, using a small data quantity method to calculate a maximum Lyapunov index; and 3, using a GM(1, n) model to carry out grey prediction on a wind power generator set running state. The system and the method are applied to the wind power system running state prediction field.

The invention discloses a method utilizing a green capacity rate to perform ecological division, which comprises the following steps: a step S100 of investigating and surveying formation, configuration proportion and areas of a plurality of vegetational types in a target area; a step S200 of utilizing an index green quantity method to determine green quantities of various plants; a step S300 of establishing a green capacity rate model reflecting green-land ecological benefits outside the target area and a green capacity rate model reflecting green-land ecological benefits inside the target area; a step S400 of calculating a greening construction index of the target area; and a step S500 of being butt joint with a professional skill system of urban planning. According to the method of an embodiment utilizing the green capacity rate to perform ecological division, the green capacity rate is quantified, and plant configuration can be performed to the target area scientifically and reasonably.