58results about How to "Avoid judgment errors" patented technology

The invention discloses an automatic searching and shimming method based uneven magnetic field fitting linearity. The method includes: using a gradient echo pulse sequence to measure the uneven image of a spatial magnetic field, using the same to fit and represent the virtual spectrogram line and related performance indexes of the current magnetic field evenness; using the related performance indexes of the virtual spectrogram line as the evaluation standard for obtaining good or bad magnetic field evenness according to the multidimensional spatial vectors built by a shimming coil, performing multidimensional descending simplex method iteration search according to the evaluation standard, and returning the optimal shimming current. The method has the advantages hat during shimming, the performance indexes such as half-width and symmetry of spectrum can be fully considered; compared with the gradient shimming using gradient echo imaging, the shimming method does not need to consider measurement and fitting the shimming coil field graphs, and the shimming difficulty and limit requirements by the aid of gradient imaging are lowered; automatic fitting and searching and convergence conditions allows the method to get rid of complex manual configuration, and shimming speed and efficiency are increased.

The invention provides a refrigerant filling component for an air conditioner and a refrigerant filling method. The refrigerant filling component for the air conditioner comprises a refrigerant supply pipeline, a refrigerant storage pipeline, a controller, a pressure sensor, a liquid pipe temperature sensor and an environmental temperature sensor, a first valve is arranged on the refrigerant supply pipeline, a first end of the refrigerant supply pipeline is connected with a first storage part for supplying refrigerants, a second end of the refrigerant supply pipeline is communicated with a filling port of the air conditioner, a second valve is arranged on the refrigerant storage pipeline, a first end of the refrigerant storage pipeline is connected with a second storage part for receiving the refrigerants, a second end of the refrigerant storage pipeline is communicated with the filling port of the air conditioner, the controller is respectively electrically connected with the first valve and the second valve, the pressure sensor is connected with a liquid pipe of the air conditioner and electrically connected with the controller, the liquid pipe temperature sensor is arranged on the liquid pipe of the air conditioner and electrically connected with the controller, and the environmental temperature sensor is electrically connected with the controller. The refrigerant filling component solves the problem that the system performance of the air conditioner is reduced due to errors of manual refrigerant filling in the prior art.

The present invention discloses a feeder terminal information interaction-based small-current grounding fault location method. The method includes the following steps that: 1, a feeder terminal acquires the addresses of adjacent feeder terminals; 2, a main station calculates a fault transient characteristic frequency band and issues the fault transient characteristic frequency band; 3, zero-mode current on each branch is measured; 4, characteristic zero-mode current on each branch is obtained through using an improved empirical mode decomposition algorithm; and 5, the feeder terminal acquires waveform similarities and average phase differences between the branches so as to judge a grounding fault and uploads fault information to the main station. With the feeder terminal information interaction-based small-current grounding fault location method of the invention adopted, a power distribution network can automatically carry out fault location, and therefore, fault location judgment efficiency can be improved, and the reliability of electricity use of users can be increased.

This invention discloses one measurement method for thermal device, which comprises the following steps: a, taking air drying device into pot and putting it on oxygen bomb rack and loading with light wire; adding stilled water into oxygen bomb injected with oxygen; b, adding proper water into inner barrel of thermal device and putting the bomb into inner barrel and covering; c, starting inner barrel mixing to keep inner temperature to balance T0 and controlling thermal device temperature to ensure work and whole curve between environment and control point sections; d, electrifying to read inner barrel temperature and experimenting main period when the temperature is lifted to zero; e, according to the computation results, computing the sample thermal volume.

The invention discloses a detecting method and device for a blocked hole of a dust collector and the dust collector. The detecting method comprises the following steps that current, revolving speed and control quantity of a motor are acquired, wherein the control quantity is used for adjusting the revolving speed of the motor; according to the current, the revolving speed and the control quantity,a blocked hole detecting value is calculated; according to the blocked hole detecting value, it is judged whether or not an air inlet of the dust collector is the blocked hole. According to the detecting method, dynamic parameters (the current, the revolving speed and the control quantity) during the operating process of the motor are acquired, and according to the dynamic parameters, it is judged whether or not the air inlet of the dust collector is the blocked hole. Based on the actual operating state of the dust collector, the method carries out judgement of the blocked hole, it can be avoided that errors of blocked hole judgement are caused due to human factors and fluctuation of motor parameters and controller hardware parameters during batch production, thereby improving reliabilityof blocked hole judgement, the motor can be accurately protected, and the service life of the dust collector is prolonged.

The invention relates to an on-sea construction ship worker positioning management system comprising a ship monitoring system, a worker monitoring system and a ground command system, wherein the worker monitoring system comprises a card reader and an industrial control computer that are installed on a ship, the card reader is used for reading information of labels worn by workers and sending the information read by the card reader to the industrial control computer, the industrial control computer is used for sending information read by the card reader to the ground command system, and the ship monitoring system is used for sending ship positioning data and basic ship information to the ground command system; the ground command system is used for receiving the information read by the card reader, the ship positioning data and the basic ship information so as to form on-sea construction ship worker positioning information. Via the on-sea construction ship worker positioning management system and method, convenience of management can be realized, positions and conditions of construction ships and workers can be grasped in real time, construction safety can be ensured, ship machine and worker safety can be ensured via capability of mobilizing resources at any time, and efficiency can be raised.

The invention relates to a device for preventing a daze in class, and belongs to the field of student supplies. The device comprises a controller, a camera device with a facial recognition function and an electric sprayer; the camera device and the electric sprayer are electrically connected with the controller separately; the controller compares facial information sequentially collected by the camera device and controls the electric sprayer to conduct spraying. The human face is recognized, the picture information of the human face is sequentially compared, and whether a human body is in a daze state or not is judged by comparing the contact ratio of pictures; the daze time is often three minutes or above when the human body is in the daze state, the position of the human face cannot change in the daze process, the condition that the human face does not change can be judged through before and after comparison on the pictures, therefore, whether the human body is in the daze state or not can be judged through the camera device, and the daze state is interrupted by stimulating the human body through electric spraying.

The invention relates to the field of semiconductor manufacturing, in particular to a method for detecting offset of focus of a lithography machine. According to the method for detecting the offset of the focus of the lithography machine, the offset of the focus of the lithography machine is monitored by depending on monitoring the similarity level of an actual measurement graph and a reference graph, the change condition of the focus of the lithography machine can be immediately and effectively judged through measuring massively-produced wafers, and measurement interference can be avoided, thus judgment errors caused by the measurement errors are avoided.

The invention discloses an image edge detection method and device. The image edge detection method comprises the steps that each pixel point of an image is used as a to-be-detected pixel point, and the following steps are executed on the to-be-detected pixel points, wherein the distance between an RGB value of one to-be-detected pixel point and an RGB value of an adjacent pixel point at a designated position is calculated; the maximum value of the calculated distances is selected; and whether the maximum value is greater than or equal to a preset threshold value is judged, if yes, the to-be-detected pixel point is an edge point, and it not, the to-be-detected pixel point is a non-edge point. Through the image edge detection method and device, the defects that in the prior art, detection of an image edge by use of a grayscale space is seriously influenced by luminance, and it is difficult to recognize images which are in the same color but have different levels of luminance are overcome, an RGB value space is directly used, therefore, a judgment error generated in chromatic aberration due to catering to visual characteristics of a person is avoided, and the edge points of the image are accurately recognized.

The invention discloses a method for testing the development process of silkworm embryos. The method specifically comprises the following steps of: (1), establishing a model expressing the incidence relation between the relative transcription expression quantity of the acetylcholine esterase type 1 (ace1) of a to-be-tested variety of the silkworm embryos and the development process of the embryos; (2), selecting at least one embryo from the to-be-tested silkworm embryos to use as a sample, testing the relative transcription expression quantity of the ace1 of the sample, and then contrasting with the model obtained in step (1) to determine the development process of the silkworm embryos according to the relative transcription expression quantity of the ace1 of the to-be-tested sample. The development stage of a whole graine can be accurately determined by the method through the test on the development process of a small quantity of silkworm embryos. Manual operation errors can be reduced, the test process is simplified, and a development process identification method is provided for molecular biology study of the silkworm embryos.

The invention discloses a tumor metastasis unit counting method based on quantum dot spectrum analysis and image parsing, which can be used for rapidly realizing the in-situ imaging of a plurality of components in a tumor microenvironment, the quantitative calculation of each component and the quantitative counting of tumor metastasis units. According to the method, the shortcomings of conventional and modern methods are overcome; the method is high in detection speed and stability; manual calculation is eliminated, so that individual judgment errors are avoided; a metastasis unit consisting of the components can be effectively, conveniently, rapidly and quantitatively calculated, and the development of individualized tumor treatment is favorably promoted.

The invention discloses a martensitic stainless steel corrosive agent used for display of the grain size of metal. The martensitic stainless steel corrosive agent is used for detecting the grain size of martensitic stainless steel. The corrosive agent comprises the specific reagents of 20ml of hydrochloric acid HCl (36%-38%), 500ml of ethyl alcohol (analytically pure), 7g of picric acid C6H2(NO2)3OH (analytically pure) and 2g of sodium dodecyl benzene sulfonate C12 H25 C6 H4 SO3Na4 (analytically pure). The invention further provides a stainless steel grain size display method in which the martensitic stainless steel corrosive agent is adopted. By the adoption of the martensitic stainless steel corrosive agent and the stainless steel grain size display method, the contrast between a grain boundary and the matrix structure of a material is increased, and the judgment errors caused by multiple martensite groups in the same grain of an austenite in the traditional detection methods can be avoided. The martensitic stainless steel corrosive agent and the stainless steel grain size display method can be widely applied to grain size detection of stainless steel forged pieces and raw materials of various machines, the accuracy of experiment results is improved, and experiment errors are lowered.

The present invention discloses a feasibility determination method for upward mining of a pillar residual mining area by loading and unloading of a dynamic disturbance, and belongs to the technical field of coal mining. The feasibility determination method comprises the following steps of: firstly ascertaining a distribution location of the pillar residual mining area and the residual coal seam, obtaining a composition, a structure, physical and mechanical parameters of the interlayer rock stratum, and uniformly dividing and numbering the interlayer rock stratum from bottom to top; then determining the location of a control rock stratum, respectively calculating the magnitude of the disturbance load acting on the residual coal pillars and the control rock layers in the pillar residual mining area by a bearing pressure after propagation attenuation; finally analyzing the stability of the residual coal pillars and the control rock layers in the pillar residual mining area in consider ofthe effects of loading and unloading of the dynamic disturbance, figuring out the result of the feasibility determination for upward mining of pillar residual mining area. According to the feasibilitydetermination method for upward mining of the pillar residual mining area by loading and unloading of the dynamic disturbance, the situation that errors of empirical method are large is avoided, a theoretical basis for safety upward mining of the residual coal in the pillar residual mining area is provided, the recovery rate of the upper coal resource in the pillar residual mining area is improved, and the service life of a mine is effectively increased.

The invention provides an online monitoring method for a grounding resistance of a transmission line tower, which is realized by a transmission line monitoring device, a lightning positioning system and a grounding resistance online monitoring system, and specifically comprises the following steps: S1, determining whether a lightning strike failure occurs; S2, calculating a total amount of chargeof the lightning strike current when the lightning strike failure occurs; S3, separately calculating the amount of leakage current charge in four directions; S4, calculating the amount of leakage current charge entering the ground in the direction of the tower; and S5, calculating a proportional coefficient between the amount of charge transmitted by the lightning strike current in the direction of the tower and the total amount of charge of the lightning current, and determining whether the grounding resistance meets the grid standard. According to the online monitoring method for the grounding resistance of the transmission line tower, the grounding resistance of the transmission tower hit by each lightning current can be monitored in real time, the judgment error caused by the change ofthe historical grounding resistance of the tower due to factors such as insulation degradation can be avoided, and a real time comprehensive monitoring of the grounding resistance of the transmissionline can be realized.

The invention belongs to the technical field of power system numerical simulation model parameter correction, and particularly relates to a method for establishing a simulation error evaluation indexbased on trajectory characteristics, in particular to a method for establishing a simulation credibility index system based on trajectory characteristics. The method comprises the following steps: injecting measured data into a simulation system by adopting a hybrid dynamic simulation method of impact load injection; calculating the track sensitivity of the simulation track to each parameter, andselecting a to-be-corrected parameter set with relatively high track sensitivity; performing hybrid dynamic simulation by using the corrected parameter group, and calculating simulation error indexesbefore and after correction, the simulation error indexes including a voltage error index and a power error index; comparing the error indexes before and after correction, and if the error value aftercorrection is smaller than the error value before correction, adopting the corrected parameters for simulation. According to the method, judgment errors caused by qualitative analysis are effectivelyavoided, the difference degree between simulation and actual measurement is reduced, and the simulation credibility is improved.

A deep-hole drilling apparatus capable of preventing a tool mark from growing is provided. The deep-hole drilling apparatus provided for this purpose comprises: a tool (12) that is rotationally driven to drill a deep hole (Wa) in a work (W); an acceleration meter (19) that detects vibration of the tool (12) as the acceleration during deep hole processing; a monitoring apparatus (20) which performs frequency analysis on the acceleration detected by the acceleration meter (19) and which determines that a tool mark is produced in the deep hole (Wa) when the overall value of the whirling frequency and the bending natural frequency within a frequency range not including the torsional natural frequency on torsional vibration, constantly produced during the deep hole processing, exceeds a predetermined threshold (alpha); and an NC apparatus (18) that controls both revolution and feeding speed of the tool (12) on the basis of the determination made by the monitoring apparatus (20).

The present invention discloses a feasibility determination method for upward mining of a pillar residual mining area in a static disturbance loading, and belongs to the technical field of coal mining. The feasibility determination method comprises the following steps of: firstly ascertaining the distribution locations of the pillar residual mining area and the residual coal seam, obtaining the composition, the structure, and physical and mechanical parameters of an interlayer rock stratum, and uniformly dividing and numbering the interlayer rock stratum from bottom to top; then determining the location of a control rock stratum, respectively calculating the magnitude of the disturbance load acting on the residual coal pillars and the control rock layer in the pillar residual mining area of a bearing pressure after propagation attenuation; and finally analyzing the stability of the residual coal pillars and the control rock layer in the pillar residual mining area in consideration of the effects of the static disturbance loading, figuring out the result of the feasibility determination for upward mining of pillar residual mining area. According to the feasibility determination method for upward mining of the pillar residual mining area in the static disturbance loading, the situation that errors of an empirical method are large is avoided, a theoretical basis for safety upwardmining of the residual coal in the pillar residual mining area is provided, the recovery rate of the upper coal resource in the pillar residual mining area is improved, and the service life of a mineis effectively increased.

The invention provides a tower column inclination judgment method based on an intelligent robot. The method comprises: using an intelligent robot and a remote control platform, establishing a Cartesian coordinate system, setting pier column measuring point layout parameters by equally dividing the pier height and the section perimeter; when the intelligent robot sequentially moves upwards along the pier to the height of the inclination measuring section, the remote control platform obtaining coordinates of interpolation points of the cross section through a Cartesian space method to control the horizontal movement of the cross section of the intelligent robot; calculating the coordinates of each section center point according to the three-dimensional coordinates of the section measuring points, fitting each section center point by taking the theoretical center line of the pier stud as an optimal fitting target to obtain the most probable value of the pier center point, further calculating to obtain the inclination angle and inclination of the pier, and judging whether the inclination of the pier stud exceeds the limit or not by combining an inclination threshold value. The method has the advantages that compared with a traditional method, the provided inclination judgment method reflects the inclination of the tower column more accurately, and a more reliable judgment basis isprovided for judgment of the construction quality and the operation health condition of the tower column.

The invention discloses a monitoring method for a person consciousness loss monitoring recognizer. The method includes the following steps: receiving acceleration data information detected by an acceleration sensor; determining whether the acceleration data information exceeds the preset threshold, and if the acceleration data information exceeds the preset threshold, determining that the state isabnormal; if the acceleration data information does not exceed the preset threshold, determining that the state is normal, wherein the preset threshold is more than or equal to 9.8 m / s; receiving vibration data information detected by a vibration sensor; determining whether there is output of vibration data information; if there is there is output of vibration data information, determining that aperson does not lose consciousness; if there is not output of vibration data information, determining that a person loses consciousness. The invention also discloses a monitoring system for a personconsciousness loss monitoring recognizer. The system includes an acceleration data determination module and a vibration data determination module. The gravitational acceleration and vibration are utilized to collect real-time data, whether a person falls down or loses consciousness is determined by a device embedded algorithm module, the monitoring mode is simple and direct, the determination canbe performed rapidly and accurately, the wrong judgment is avoided, and the monitoring efficiency is improved.

The invention discloses a curved screen defect detection method and device, and the method comprises the following steps: providing a machine table, and placing a to-be-detected curved screen on the machine table; the machine table is moved to the position below a lens of a camera; and the camera photographs the arc edge of the curved screen to detect whether defects exist or not. The method has the technical effect that the crack defect detection efficiency is improved.

The invention relates to an intelligent visual green brick marshalling arrangement device which comprises a workbench. A conveying belt is arranged on the upper surface of the workbench in the lengthdirection of the workbench. A green brick storage workbench which is flush with the upper surface of the workbench is fixedly arranged at the front side of the feeding end of the workbench. A green brick grabbing movement device used for grabbing green bricks put onto the workbench and the green brick storage workbench is movably arranged over the workbench and the green brick storage workbench. The workbench and the green brick storage workbench are provided with a plurality of cameras used for shooting the green bricks conveyed on the workbench. The cameras and the green brick grabbing movement device are connected with a controller. The structural design is reasonable and novel, automatic equipment takes the place of manual work to replace unqualified green bricks in production of an assembly line, the working efficiency of replacing the unqualified green bricks is effectively improved, green brick replacement is made more qualified and accurate, and judgment errors caused by judging whether the green bricks are qualified or not depending on the subjective judgment and proficiency of workers are avoided.

The invention discloses a method for judging the moth formation time of bombyx mori. The method comprises the following steps of: (1) independently constructing an associated model of pupal period development time and a relative transcription expression quantity of the (Cocoonase,Coc) gene of a male pupa and a female pupa of a variety to be detected; and (2) measuring the relative expression quantity of the (Cocoonase,Coc) gene of the pupa to be detected, and according to the gender, contrasting with the associated model obtained in (1) to carry out calculation to obtain the pupal period development time so as to judge the moth formation time. By use of the method, the pupal period development time of one or a plurality of pupae is accurately measured so as to accurately judge the moth formation time of the bombyx mori, an error caused by traditional visual inspection can be reduced, and a new detection method is provided for judging the moth formation time in bombyx mori species manufacturing work.

The invention discloses a pressure measuring unit of a compressor, and the pressure measuring unit is used for driving the compressor to operate so as to carry out pressure measuring operation. The pressure measuring unit is respectively connected with the inlet end and outlet end of the compressor mainly by use of a positive pressure pipeline and a negative pressure pipeline, electromagnetic valves are respectively arranged in the positive pressure pipeline and the negative pressure pipeline, a control module controls the operation of the compressor and the startup time of the electromagnetic valves in the positive pressure pipeline and the negative pressure pipeline, thereby automatically carrying out positive pressure or negative pressure detection operation of the compressor. The pressure measuring unit provided by the invention can automatically carry out the positive pressure or negative pressure detection operation of the compressor, thereby achieving the effects of saving the labour cost, effectively shortening the testing time and greatly improving detection efficiency.

The invention discloses a stand mixer capable of detecting a bread dough kneading state. The stand mixer capable of detecting the bread dough kneading state comprises a frame, a stirring device and a dough kneading basin; the stirring device comprises a fixed flat plate for a rotating mechanism; a stirring part, a pressing part and a core part, which are respectively controlled by cylinders, are coaxially arranged on the fixed flat plate from outside to inside; the dough kneading basin is divided into a working layer and a bottom layer by a partition plate arranged in the dough kneading basin; a circular hole is formed in the middle of the partition plate; an ejecting mechanism is arranged in the bottom layer; one end of the ejecting mechanism is connected with the cylinder fixedly arranged at the bottom of the dough kneading basin; the circular arc end surface of the other end of the ejecting mechanism is embedded in the circular hole; the arc end surface is aligned with the cylinder at the bottom of the dough kneading basin. The stand mixer disclosed by the invention has the advantages that the automatic detection can be realized; the efficiency is enhanced; dough with a certain hardness is obtained within a short time; judging error caused by the technical level of an inspector is effectively avoided, so as to avoid product making failure caused by excessive stirring; the success rate is increased; the making cost is effectively reduced.

The invention relates to the field of semiconductor manufacturing, in particular to a method for detecting offset of focus of a lithography machine. According to the method for detecting the offset of the focus of the lithography machine, the offset of the focus of the lithography machine is monitored by depending on monitoring the similarity level of an actual measurement graph and a reference graph, the change condition of the focus of the lithography machine can be immediately and effectively judged through measuring massively-produced wafers, and measurement interference can be avoided, thus judgment errors caused by the measurement errors are avoided.

The invention discloses an automatic searching and shimming method based uneven magnetic field fitting linearity. The method includes: using a gradient echo pulse sequence to measure the uneven image of a spatial magnetic field, using the same to fit and represent the virtual spectrogram line and related performance indexes of the current magnetic field evenness; using the related performance indexes of the virtual spectrogram line as the evaluation standard for obtaining good or bad magnetic field evenness according to the multidimensional spatial vectors built by a shimming coil, performing multidimensional descending simplex method iteration search according to the evaluation standard, and returning the optimal shimming current. The method has the advantages hat during shimming, the performance indexes such as half-width and symmetry of spectrum can be fully considered; compared with the gradient shimming using gradient echo imaging, the shimming method does not need to consider measurement and fitting the shimming coil field graphs, and the shimming difficulty and limit requirements by the aid of gradient imaging are lowered; automatic fitting and searching and convergence conditions allows the method to get rid of complex manual configuration, and shimming speed and efficiency are increased.