34results about How to "Data deviation is small" patented technology

The invention discloses a greenhouse environment monitoring system with remote calibrations and a redundant network and a monitoring method thereof. The greenhouse environment monitoring system with the remote calibrations and the redundant network comprises a terminal node which comprises a sensor sequence, a first processor, an actuator and a first wireless communication link, a coordinator which comprises a second wireless communication link and a second processor, a display terminal which is use to display output information of the second processor, and a communication terminal which carries monitoring data information in note mode. The greenhouse environment monitoring system with the remote calibrations and the redundant network and the monitoring method thereof are used to achieve self monitoring and self controlling of greenhouse environment elements, and simultaneously solve the problems that an existing greenhouse environment monitoring system is poor in network stabilization and low in detection data reliability of a sensor.

The invention relates to a user preference determination method and device, electronic equipment and a storage medium, and relates to the technical field of big data. The user preference determinationmethod comprises the steps: obtaining user behavior data associated with various types of objects, and determining a label of a user for the preferences of the various types of objects based on the user behavior data, so as to construct a data set; according to the user behavior data in the data set and the determined label, generating sample data for the various purposes; training a machine learning model through the sample data corresponding to each category to obtain a classification probability value corresponding to each category; and determining the category preferred by the user according to the classification probability value corresponding to the category. According to the invention, the accuracy of user preference determination can be improved.

The invention discloses a sample preparation method and a compaction device for immature soil base materials. The method comprises the steps that the interior of a mold is coated with a lubricating oil layer, the immature soil base materials are put into the mold layer by layer, the immature soil base material layers in the mold are compacted through a jack every time one layer of immature soil base material is laid, and therefore a sample to be detected is obtained; the compaction speed of the jack is 0.5 mm / s, the compaction pressure of the jack is 18-19 K / N, and the compaction time of the jack is 3-5 min; the compaction device comprises a test bed, the test bed is sequentially provided with a first platform and a second platform in parallel in the horizontal direction from top to bottom, the second platform is coaxially provided with the jack, a gasket, the mold and a pressing column in sequence from bottom to top in the vertical direction, and the top end of the pressing column abuts against the first platform. Compared with a traditional hammer test, a press compaction test and a jack compaction test, the compressive strength of a test piece compacted by the jack is more stable than the compressive strength of a test piece compacted by the other two test methods, test piece overall deformation is good, and the test piece has good ductility when compacted.

The invention belongs to the technical field of intersection of ballistics, computers and optical range finders, and discloses an electronic mirror dividing plate with the dividing distance and impactpoint position and a method thereof. The electronic mirror dividing plate includes a dividing plate body, a windage yaw offset line and a trajectory offset line, wherein the windage yaw offset line and the trajectory offset line are vertically intersected on the dividing plate body, the intersection position of the windage yaw offset line and the trajectory offset line is the position of the bullet return-to-zero distance, both sides of the trajectory offset line include the dividing distance and the position of an impact point to be displayed, and a dividing refining line is set on a vertical intersection line. According to the electronic mirror dividing plate with the dividing distance and impact point position and the method thereof, the electronic mirror dividing plate with the same dividing plate structure as a sighting telescope and the dividing distance and impact point precise position is displayed on terminal equipment, the position of the impact point is obtained according to software calculation, a shooter can adjust a knob on the offset position of the impact point shown on an electronic mirror, errors of artificial experience judgment are reduced, the knob can be quickly turned for offset adjustment, and users conveniently and accurately hit targets.

The invention discloses an automatic real-time tracking method for a construction progress of a house building. The method comprises the steps that tracking points are arranged on a tower crane; height readings of different angle tracking points and a target building (a target) are obtained by rotating the tower crane, stored, screened, averaged and sent to scale units; data of the scale units is calculated; the height (target height) from the target to the tower crane is stored; angle scale values are read; target height values are screened and averaged when the stored data size reaches a preset value or the setting time is elapsed from storing the first data; the average target height value, the angle scale values, horizontal positions of the tracking points, and the like are transmitted to a server; the server screens and averages the all-day target height of each scale unit; and the average all-day target height, the angle scale values and data quality information are stored in a database. The screening is reliability screening; a corresponding system mainly comprises a range sensor, an angle measurement element, a processor, an AD (Analog to Digital) converter, a wireless communication module and the server; the range sensor is connected with the processor by the AD converter; and the angle measurement element outputs a signal to the processor.

The invention provides a method of preparing a transmission electron microscope (TEM) sample for in-situ electrical test. The method at least comprises steps: a metal probe is firstly provided, and the tip end of the metal probe is smoothed to form a platform; a phase change memory device is then prepared on the surface of the platform, wherein the phase change memory device comprises a lower electrode layer, a phase change layer, and an upper electrode layer; a protective layer is then deposited on the surface of the upper electrode layer; with the protective layer as a mask, the phase changememory device is etched, and thin sheets are formed at two side edges of the platform; and the sheets are segmented to form a plurality of individual TEM samples. The problem of electrical connectionbetween a TEM sample and an in-situ electrical test TEM sample rod is solved, a step of extracting and transferring a sample to a Cu mesh required for TEM sample preparation by the conventional FIB is avoided, the sample preparation difficulty is reduced, the sample preparation success rate is improved, the sample preparation cost is greatly reduced, research and development on a new high-densitystorage phase change material are quickened, and a quick means is provided for research on reversible phase change behaviors and interface phase change behaviors.

The invention provides a dry powder inhaler shell capable of detecting the flow rate of medicine inhaling. The shell comprises an inhaler shell body in the prior art, a containing cavity for installing an integrated circuit board is additionally arranged on the inhaler shell body, and a pressure sensor is installed on the circuit board and used for detecting the inhaling flow speed of a patient inreal time and displaying the flow speed on display equipment so that the patient can adjust the inhaling flow speed in real time according to the information on the display equipment. A position sensor, a direction sensor, a buzzer and an LED lamp are additionally arranged, so that detection items of the dry powder inhaler shell are further improved, visibility of the patient on the detection items is ensured, the patient can conveniently adjust application and operations in real time according to detection results, and it is guaranteed that the patient can correctly use a dry powder inhalerprovided with the dry powder inhaler shell. The shell of the dry powder inhaler is directly replaced, so that the patient conveniently uses the dry powder inhaler shell, it can be ensured that the patient takes a sufficient quantity of medicine for controlling or healing diseases, and the conflicts between doctors and patients are greatly reduced.

The invention discloses an electric power system and an electric power market participant risk assessment system. The electric power system comprises an electricity quantity acquisition device, a line loss acquisition device, an input controller and a background processing device, wherein the electricity quantity acquisition device acquires the electricity consumption amount of a user and the transmission electricity quantity of each level of power grid; the line loss acquisition device acquires a line loss electricity quantity; the input controller inputs the name of an electricity quantity to be determined; and the background processing device calculates the electricity quantity to be determined. The electric power market participant risk assessment system also comprises a market acquisition device, a model establishment unit, an index determination unit, an index screening unit and a pressure test unit, wherein the market acquisition device acquires market information data; the model establishment unit establishes a behavior model of the electric power market participant; the index determination unit determines a pressure-bearing index and a risk index; the index screening unit screens a key risk index which has a high influence degree on a pressure-bearing index variable; and the pressure test unit evaluates the risk to which the participant faces under an extreme condition. Therefore, through the flexible acquisition of the electricity quantity and the pressure test, the risk to which the electric power market participant faces under the extreme condition can be effectively evaluated.

Embodiments of the disclosure provide infectious disease population prediction method and apparatus, electronic equipment and a computer-readable storage medium. The invention belongs to the technicalfield of medical care data. The prediction method includes: modifying original medical data related to a target disease to acquire a modified data corresponding to the original medical data; determining multi-dimensional characteristic data by combining the modified data and associated data corresponded to the target disease; and predicting the multi-dimensional characteristic data by means of reference duration before target time, so as to determine the number of cases belonging to the target disease directing at the target time. By means of the embodiments, the accuracy of prediction of thenumber of cases is increased.

The invention relates to a touch panel and a method for determining the ground wire position inside the touch panel. The touch panel comprises a substrate, a drive layer and a sensing layer are sequentially arranged on one side of the substrate, the drive layer comprises a first grounding wire, a second grounding wire and multiple drive electrodes, the sensing layer comprises multiple sensing electrodes, a first capacitor area, a middle capacitor area and a second capacitor area are included between the sensing layer and the drive layer, and the capacitance error between the first capacitor area and the middle capacitor area and the capacitance error between the second capacitor area and the middle capacitor area are both smaller than 2%. According to the touch panel and the method for determining the ground wire position inside the touch panel, the data deviation of the edge point and middle part of a sensor is decreased by means of precise arrangement of a ground wire, and therefore the whole quality of a product is improved.

A method for predicting wellbore temperature by region section based on cementing big data includes statistics of electric logging data of the block or adjacent blocks, structured design of data, establishment of cementing big data, data mining, and establishment of temperature prediction of each opening wellbore one by one by piecewise multiple regression geothermal gradient using progressive method. The invention can improve the accuracy of wellbore temperature prediction and avoid engineering and safety accidents caused by excessive wellbore temperature prediction error.

The invention provides a transformer cooling device, the transformer cooling device is arranged on a transformer cooling fin, the transformer cooling device comprises a temperature acquisition module, a temperature control module and a cooling processing module, the temperature acquisition module is arranged at the upper part of the transformer cooling fin, the temperature acquisition module is also connected with the temperature control module. And the cooling processing module is connected with the temperature control module. The invention further provides a transformer cooling method, a temperature reference value is set, the temperature data of the transformer are collected, then the temperature data and the temperature reference value are compared through the temperature control module, whether the valve is opened or not is determined, and if the valve is opened, cooling water flows to the cooling fin of the transformer for cooling. According to the transformer cooling device and method, a water cooling method is adopted, the influence of environmental factors on the heat dissipation efficiency is eliminated, the heat dissipation efficiency is effectively improved, the model type of the transformer is not required, and the transformer does not need to be changed.

The invention belongs to the technical field of medical supplies, and discloses an intelligent pressure reduction device of gastrointestinal juice for general surgery. The device comprises an internal pressure detector, a metal probe, a drainage tube, a sleeving connector, an induction controller, a shrinking machine and a negative pressure drainage instrument. The shrinking machine is clamped to the outer side of the negative pressure drainage instrument, and the induction controller is arranged on one side of the upper end of the shrinking machine; the drainage tube is connected to the sleeving connector at the top of the negative pressure drainage instrument in a sleeving mode, the metal probe is connected to the tail end of the drainage tube in a sleeving mode, and the internal pressure detector is connected to one side of the metal probe in a pin joint mode. According to the intelligent pressure reduction device, after the metal probe is placed into the stomach of a patient, the internal pressure detector detects the pressure of the gastrointestinal juice automatically, and the induction controller receives signals and controls the shrinking machine to conduct corresponding work. According to the intelligent pressure reduction device, the pressure of the gastrointestinal juice of the patient can be reduced properly, the excess or interference situation of manual pressure reduction is avoided, the working efficiency is improved, and the intelligent pressure reduction device has great popularization significance.

The invention discloses a greenhouse environment monitoring system with remote calibration and redundant network and a monitoring method thereof. The greenhouse environment monitoring system includes: a terminal node, and the terminal node includes a sensor sequence, a first processor, An actuator and a first wireless communication link; a coordinator, the coordinator including a second wireless communication link and a second processor; a display terminal, the display terminal is used to display the output information of the second processor; a communication terminal , the communication terminal carries monitoring data information in the form of short messages; the present invention is used to realize the self-monitoring and self-control of greenhouse environmental elements, and at the same time, it solves the problem of weak network stability of the existing greenhouse monitoring system and the reliability of sensor detection data Not a high question.

The invention discloses an adjusting device for accurately adjusting the angle of an initial surveying and mapping theodolite. The adjusting device comprises a main machine body, a tripod connector, three tripods, a ground and infrared receiver, the lower end face of the main machine body is fixedly connected with the upper end face of the foot stool connector, the tripod connector is provided with three hinge cavities, the hinge cavities are communicated with the outside, the three hinge cavities are arranged in a central annular array relative to the central position of the tripod connector, the inner walls of the hinge cavities are hinged to the tripods, the lower end faces of the three tripods are fixedly connected with the ground, and an infrared receiver is fixedly arranged on the upper end face of the ground.The theodolite is pushed to be accurately positioned on an observation point, the data deviation is small, the circular level of the theodolite can be adjusted, so that the theodolite meets the requirement of accurate observation at both the horizontal angle and the vertical angle, the surveying and mapping value is more accurate, and the process of repeated surveying and mapping is omitted.

The invention discloses a method for predicting wellbore temperature by region and segment based on cementing big data. , and then the data is mined, and the subsection multivariate regression geothermal gradient is used to establish the temperature prediction of each opening one by one using the progressive method. By adopting the invention, the prediction accuracy of the borehole temperature can be improved, and the engineering and safety accidents caused by the excessive prediction error of the borehole temperature can be avoided.

The invention provides a steel rolling power consumption parameter recommendation method and system. The method comprises the steps of constructing a power consumption parameter data set, and selecting an optimal model from a plurality of preset models according to the power consumption parameter data set; performing importance screening on parameters in the power consumption parameter data set through the optimal model, constructing an important feature data set, and training the optimal model through the important feature data set to obtain a power consumption recommendation algorithm model; and selecting a plurality of discrete points from the power consumption parameter data set according to the charging temperature, constructing a discrete point set, taking the discrete point set as the input of the power consumption recommendation algorithm model, and obtaining a parameter with a minimum power consumption value as a power consumption recommendation parameter. According to the steel rolling power consumption parameter recommendation method and the system, and the accuracy of power consumption parameter setting can be effectively improved.

The invention discloses a correction method for an instrument voltage transformer, and comprises the steps of: firstly combining at least two inductive voltage dividers in a primary-secondary cascade connection, and configurating the transformation ratio tap positions of a primary inductive voltage divider and a secondary inductive voltage divider to enable the transformation ratio after the primary-secondary cascade connection combination to be the same as that of a certain tap position of the instrument voltage transformer; then obtaining errors of the primary inductive voltage divider and the secondary inductive voltage divider by self-correcting and verifying; and finally calibrating the self-corrected and verified primary inductive voltage divider and secondary inductive voltage divider to be a voltage ratio criterion, and comparatively transmitting the voltage ration criterion to the instrument voltage transformer to realize the correction of the change of a certain tap position of the instrument voltage transformer. The correction method for the instrument voltage transformer can improve the correction accuracy of voltage / voltage conversion under the condition of a low-voltage output of the instrument voltage transformer.

The embodiment of the invention discloses a matrix data processing method and device and a storage medium. The method comprises the following steps: determining a first training matrix from a first spectrum matrix associated with a host, and determining a second training matrix from a second spectrum matrix associated with a slave; performing data preprocessing on the first training matrix and thesecond training matrix to obtain a first processing matrix and a second processing matrix; performing fixed half-window expansion on the second processing matrix to obtain a first expansion matrix, and performing feature reconstruction on the first expansion matrix to obtain a first feature matrix; training an initial regression model according to the first processing matrix and the first featurematrix to obtain a target regression model carrying a transfer coefficient matrix F; and obtaining a third spectral matrix associated with the slave, and predicting to obtain a target spectral matrixassociated with the host according to the third spectral matrix and the target regression model. By adopting the embodiment of the invention, the cross-equipment transfer capability of the sample canbe improved.

The invention discloses an on-line monitoring device for circulating mother liquor produced by a metathesis cycle method. The inner cavity of the floating chamber is provided with a buffer liquid storage chamber and a detection chamber connected through a filter. The buffer liquid storage chamber sucks the mother liquor through a micropump to detect After the completion, the detection chamber discharges the mother liquor through the liquid outlet; the detection chamber is equipped with a detection sensing element group for the circulating mother liquor; the detection sensing element communicates with the PLC control system to transmit the detection data, and the PLC control system communicates with the display to display the detection results. It is convenient for the staff to obtain various data of the solution in an instant, objective and intuitive way, so as to adjust the type and quantity of the material input, and provide a data basis for the smooth progress of the next process; the detection data is true and reliable; the data deviation is small, and the data measurement speed is fast; multiple The tests are performed simultaneously.

The invention relates to the field of target scattering point echo model estimation, in particular to a scattering point model parameter estimation method based on target echo intensity sorting. According to the method, more original signal data are used for participating in model pole estimation, descending sorting is carried out on the calculated model coefficients, a plurality of previous larger coefficient values are intercepted according to the calculated model order, and finally, a target scattering point echo model is established, so that the extrapolation data accuracy is higher.

The invention discloses an automatic real-time tracking method for a construction progress of a house building. The method comprises the steps that tracking points are arranged on a tower crane; height readings of different angle tracking points and a target building (a target) are obtained by rotating the tower crane, stored, screened, averaged and sent to scale units; data of the scale units is calculated; the height (target height) from the target to the tower crane is stored; angle scale values are read; target height values are screened and averaged when the stored data size reaches a preset value or the setting time is elapsed from storing the first data; the average target height value, the angle scale values, horizontal positions of the tracking points, and the like are transmitted to a server; the server screens and averages the all-day target height of each scale unit; and the average all-day target height, the angle scale values and data quality information are stored in a database. The screening is reliability screening; a corresponding system mainly comprises a range sensor, an angle measurement element, a processor, an AD (Analog to Digital) converter, a wireless communication module and the server; the range sensor is connected with the processor by the AD converter; and the angle measurement element outputs a signal to the processor.

The invention discloses an adaptive fault-tolerant processing method and system for spatial information data, which sequentially arranges the geometric center points in the vector space data according to the frequency of the geometric center points of the same line entity and surface entity appearing in the first N vector space data , the coded sequence of the point entity is calculated by constructing a binary tree with frequency, and the coded sequence corresponding to the line entity and surface entity is obtained through the frequency calculation, and the data processing or storage of the spatial information data is directly performed through the coded sequence; the point entity, the line entity in the spatial information data are Entities and surface entities are processed as mapping data in the form of code sequences, which can greatly compress the amount of data and improve data stability, so that the data deviation of continuous vector data in real-time reading can be reduced. Due to the use of data encoding formats, the The smaller data volume is convenient for data storage, which improves the retrieval and reading speed of spatial information data post-processing, and improves the fault tolerance of spatial data.

The present invention discloses a pressure loss detection method of a heat collection pipe network, belonging to the technical field of solar thermal power generation. The method comprises a step of simplifying a solar thermal power generation system heat collection field pipe network as a resistance network, a step of allowing the resistance factors of two solar heat collection array loops in the mother pipe in the heat collection field pipe network to be equivalent to R2, allowing the pipe on-way resistance factors between a cold oil mother pipe and a hot coil mother pipe as R1 and R3, and forming an infinite network by an infinite pipeline loop, a step of calculating the on-way pressure drop in the pipeline, calculating the friction resistance factor of each segment of the pipeline, and obtaining the resistance value in the resistance network, a step of obtaining the pressure loss value of the heat collection pipe network in the solar thermal power generation heat collection field pipe network according to the resistance value in the resistance network. Through the pressure loss equivalent calculation of a solar thermal power generation infinite pipe network, the accuracy of solar thermal power generation system modeling data is greatly improved, the data bias is reduced, and the control stability of the solar thermal power generation system is ensured.

The invention discloses a ground control test safety valve, which comprises an upper joint, a duck neck outer cylinder, a spring outer cylinder, a piston mandrel, a spring, a one-way valve, a ball valve outer cylinder, a ball valve assembly, a lower limit ball seat and a lower joint , the upper joint, duck neck outer cylinder, spring outer cylinder, ball valve outer cylinder and lower joint are sequentially fixedly connected to form a hollow shell, and the piston mandrel, spring, one-way valve, ball valve assembly and lower limit ball seat are arranged in sequence In the shell formed by the upper joint, the duck neck outer cylinder, the spring outer cylinder, the ball valve outer cylinder and the lower joint, the inner wall of the duck neck outer cylinder is provided with a control pipeline, a balance pipeline and a chemical injection channel, and the control pipeline maintains pressure to make the The ball valve assembly is always in the open state, and the pressure formed by filling the balance pipeline with nitrogen gas cooperates with the spring and the one-way valve to drive the ball valve assembly to close to cut the coiled tubing, and inject chemical agents to the bottom of the well through the chemical injection channel. The invention can cut test cables and coiled tubing by means of nitrogen filling pressure or balanced pipeline pressure.

The invention relates to a touch panel and a method for determining the ground wire position inside the touch panel. The touch panel comprises a substrate, a drive layer and a sensing layer are sequentially arranged on one side of the substrate, the drive layer comprises a first grounding wire, a second grounding wire and multiple drive electrodes, the sensing layer comprises multiple sensing electrodes, a first capacitor area, a middle capacitor area and a second capacitor area are included between the sensing layer and the drive layer, and the capacitance error between the first capacitor area and the middle capacitor area and the capacitance error between the second capacitor area and the middle capacitor area are both smaller than 2%. According to the touch panel and the method for determining the ground wire position inside the touch panel, the data deviation of the edge point and middle part of a sensor is decreased by means of precise arrangement of a ground wire, and therefore the whole quality of a product is improved.

The invention discloses a novel measuring ruler comprising a first pipe body and a second pipe body. The first pipe body and the second pipe body are movably connected by a screw. The left end of thesecond pipe body is movably connected with a scale through a pin. Nuts are fixedly installed at the right ends of the first pipe body and the second pipe body. The inside of each nut is in threaded connection with a rod body. Each rod body is provided with a thread matching the corresponding nut. One side of the first pipe body and one side of the second pipe body facing each other are movably connected with vertical rods through rotating shafts. A box body is arranged in a penetrating manner at the opposite ends of the two vertical rods. Through the setting of the first pipe body, the secondpipe body, the screw, the pin, the scale, the nuts and the rod bodies of the novel measuring ruler, the bottom of the screw can be easily measured in spinal operation, the deviation of measured data is small, the scale lines are movable, and the distance is proportional. The novel measuring ruler is easy to process, and costs low. The novel measuring ruler is easy for users to operate and use, andfacilitates measurement in operation.

The invention relates to the field of machine learning, discloses a machine learning sample oversampling method based on swarm intelligence, and solves the problem that an oversampling scheme in the prior art is easy to cause overfitting of a model by repeating positive samples. According to the scheme, firstly, a large amount of user behavior data is obtained through a big data platform; then, extracting a behavior positive and negative sample set from the user behavior data according to a required rule to form an original sample set; thirdly, grouping the users in the original sample set, and dividing the users into low-activity users and non-low-activity users; then, for low-activity users, generating a user supplement positive sample set by using a machine learning algorithm based on group wisdom; then, removing repeated / conflicted samples of the original sample set and the supplementary sample set; and finally sampling from the supplementary sample set and supplementing to the original sample set.

The invention discloses a sample preparation method and a compaction device for immature soil base materials. The method comprises the steps that the interior of a mold is coated with a lubricating oil layer, the immature soil base materials are put into the mold layer by layer, the immature soil base material layers in the mold are compacted through a jack every time one layer of immature soil base material is laid, and therefore a sample to be detected is obtained; the compaction speed of the jack is 0.5 mm / s, the compaction pressure of the jack is 18-19 K / N, and the compaction time of the jack is 3-5 min; the compaction device comprises a test bed, the test bed is sequentially provided with a first platform and a second platform in parallel in the horizontal direction from top to bottom, the second platform is coaxially provided with the jack, a gasket, the mold and a pressing column in sequence from bottom to top in the vertical direction, and the top end of the pressing column abuts against the first platform. Compared with a traditional hammer test, a press compaction test and a jack compaction test, the compressive strength of a test piece compacted by the jack is more stable than the compressive strength of a test piece compacted by the other two test methods, test piece overall deformation is good, and the test piece has good ductility when compacted.

The invention discloses a low-voltage distributed photovoltaic output estimation method in the technical field of power system automation, and aims to solve the problems that in the prior art, low-voltage distributed photovoltaic information collection is poor in real-time performance, data delay is more than one hour, real-time information is lost, and scheduling control requirements cannot be met. The method comprises: acquiring reference station output at a current moment; according to the output of the base station at the current moment and in combination with a predetermined association relationship between the marketing low-voltage distributed photovoltaic output and the output of the base station, matching the association relationship between the marketing low-voltage distributed photovoltaic output at the current moment and the output of the base station; estimating the low-voltage distributed photovoltaic output at the current moment according to the reference station output at the current moment and the association relationship between the matched marketing low-voltage distributed photovoltaic output at the current moment and the reference station output; the method is suitable for a power dispatching system, minute-level observation of low-voltage distributed photovoltaic output can be achieved, real-time performance is good, equipment investment does not need to be increased, and the actual application value is high.