54results about How to "Intuitive and accurate judgment" patented technology

The invention discloses a method for constructing and using a three-dimensional thermoforming limit diagram of VRB (Variable Thickness Rolled Blanks). The method comprises the following steps: 1) measuring basic parameters of a sample material at the temperature below 20 DEG C, wherein the measuring basic parameters are composed of a material thickness anisotropy index r, a material strain hardening index n and a material constant K; 2) utilizing a bulging test to acquire a forming limit curve of equal-thickness blanks in different strain paths corresponding to a certain thickness of the sample material at the temperature below 20 DEG C; 3) converting the forming limit curve of the equal-thickness banks in the different strain paths corresponding to the certain thickness of the sample material into a corresponding forming limit stress curve according to a formula and a corresponding yield criterion; 4) repeating the steps 1-3, forming an FLSC curve of the equal-thickness blanks in different thicknesses at the temperature below 20 DEG C. According to the method provided by the invention, the traditional forming limit strain curve is converted into the forming limit stress curve and is further converted into the three-dimensional thermoforming limit diagram considering the blank thickness and temperature, so that if the VRB can be successfully formed can be more directly and accurately judged.

The invention discloses a construction and using method of a VRB (Variable Thickness Rolled Blank) forming limit stress diagram. The construction and using method comprises the following steps: 1) determining basic parameters of a sample material, wherein the basic parameters of the material comprise material coefficient of normal anisotropy (r), material coefficient of strain hardening (n) and material constant K; 2) obtaining forming limit curves of various equal-thickness blanks of the corresponding sample material by using a bulging experiment; 3) converting the forming limit curves of different strain paths under different thickness of the corresponding sample material into corresponding forming limit stress curves according to corresponding yield criterions and a formula; 4) connecting the forming limit stress curves into a curved surface, i.e. a three-dimensional forming limit stress diagram, by using an interpolation method. The construction and using method of the VRB forming limit stress diagram has the advantage that since the traditional forming limit strain curves are converted into the forming limit stress curves which are further converted into the three-dimensional forming limit stress diagram which considers the blank thickness, whether the VRB can be successfully formed or not can be judged more intuitively and accurately.

The invention discloses an intelligent electric meter anti-theft system which comprises an intelligent electric meter and a processing main station. The intelligent electric meter comprises a controller and also comprises a cover opening detecting module, a current sampling module, an alarm module and a data transmission module connected to the controller. The cover opening detecting module detects whether a cover of the intelligent electric meter is opened and records a time when the intelligent electric meter is opened. The current sampling module is connected to a phase line and a neutral line of the intelligent electric meter and simultaneously collects phase line and neutral line current values. The data transmission module data of the intelligent electric meter is connected to the processing main station, and the processing main station has an electricity stealing judgment module. According to the system, by sending detection and sampling data to the processing main station, whether electricity stealing occurs is judged through the electricity stealing judgment module of the processing main station, and a judging method is that an electricity stealing event is judged when phase line and neutral line current are unbalanced and the intelligent electric meter is opened before the current imbalance. Whether the electricity stealing event occurs is more intuitively and accurately judged, and unnecessary misjudgment is avoided.

The invention discloses a method for judging the geological layer where the drill of a drilling machine drilling for a certain depth is positioned. The method comprises the following steps: 1), obtaining the rock formation density of a target rock formation, P wave velocity and Poisson's ratio Mu, so as to obtain the elastic modulus of the target rock formation through calculation; 2), comparing the elastic modulus of the target rock formation with data in a computer database, so as to obtain the type of the rock formation through analytical judgment; 3), recording the depth when the elastic modulus of the rock formation and the original value of the elastic modulus of the rock formation change suddenly, wherein the depth is the interface depth of the rock formation; 4), repeating the steps (1, 2 and 3), so as to obtain the geological layers where the drill of the drilling machine drilling for different depths are positioned. The method has the advantages that physical properties and mechanical parameters can be obtained through laboratory tests without depending on rock core, real-time analysis and calculation can be carried out according to corresponding data collection when the drilling machine is used for drilling, and the rock formation where the drill is can be judged, so that the process of obtaining the physical properties and mechanic parameters of rock formations of different depths can be simplified greatly, and engineering time is shortened.

The invention discloses a detection device and a detection method for the thickness of the dielectric layer of a multilayer PCB board based on capacitance testing. copper blocks, and several test pads arranged on the first layer of the multi-layer PCB board, the several test pads are respectively corresponding to the copper blocks of each layer of the multi-layer PCB board; each layer of copper The blocks are connected to corresponding test pads by wires and/or plated vias. The method is to use a capacitance tester to measure the capacitance value between the copper blocks of each layer, and can quickly, simply, intuitively and accurately judge whether the thickness of the dielectric layer between the layers of the PCB board meets the requirements by comparing the designed theoretical capacitance value, so as to avoid complexity and destructiveness of slice analysis.

The invention discloses a method and system for constructing an electromagnetic hotspot distribution diagram of a target. The method includes the steps that mirror reflection currents, edge diffraction currents and the sum of N reflected currents, generated on incident radar beams, by each triangular surface element in a three-dimensional triangular mesh model of the target are calculated according to the incident direction of the appointed radar beams, so that the equivalent currents of the triangular surface element are obtained; after the scattering electric field intensity of each triangular surface element is calculated according to the equivalent currents of the triangular surface element, and electromagnetic hotspot data of the triangular surface element are calculated according to the equivalent currents and scattering electric field intensity of the triangular surface element; the electromagnetic hotspot data of each triangular surface element in the three-dimensional triangular mesh mode are attached to the triangular surface element through corresponding colors, so that the three-dimensional electromagnetic hotspot distribution diagram of N times of reflection of the target is obtained; N is a preset natural number. The method and system are applied to accurately judging the strong electromagnetic scattering structure of the target.

The invention provides a detection test paper of HER2 protein expression level, which comprises a base plate, and also comprises an NC membrane, a crystal-marking pad, a water-absorption pad, a sample pad, and a filter membrane. A sample is added and flow laterally to the crystal-marking pad to form two antigen/antibody-crystal compounds; then the two antigen/antibody-crystal compounds continue to flow along the NC membrane in the direction of the water-absorption pad, and reach a detection area; the two antigen/antibody-crystal compounds combines with another two antibodies fixed at the detection area; under illumination, proteins to be detected with different concentrations in the sample are mixed with cellular housekeeper protein-combined crystals, so as to exhibit different colors. The colors are compared with a special colourimetric card by observing the colors of the detection area with naked eyes, and semi-quantitative detection of the breast cancer cell HER2 protein expression is carried out rapidly.

The invention provides a local erasing method based on touch track recognition, a writing board, a blackboard and a drawing board. The method comprises the steps that a touch recognition mode is usedfor recognizing a touch object, when the width of the touch object is within a preset width range, the motion trail of the touch object is recognized, whether the touch object does reciprocating motion within a preset range or not is judged, and when the number of times of reciprocating motion is larger than the preset number of times, the position covered by the reciprocating motion is locally erased. The motion trail of the touch object is recognized through induction, local erasing in a smaller range can be achieved, and confusion misjudgment of writing and erasing is avoided.

The invention discloses an oil compensation type transformer and belongs to the technical field of power supply equipment. The oil compensation type transformer comprises a transformer box. The transformer box is provided with an oil cavity for containing transformer oil. A compensation oil tank is arranged on the top of the transformer box. A fixed pipe is fixedly installed in a sampling opening and penetrates through the oil cavity of the transformer box, and the end of the fixed pipe is fixed to the transformer box. The portion, located in the oil cavity, of the fixed pipe is provided with an oil inlet gap. The extending direction of the oil inlet gap is the same as that of the fixed pipe. An isolation pipe is rotationally installed in an oil inlet pipe and provided with an oil through groove corresponding to the oil inlet gap. A sampling pipe is inserted into the isolation pipe. The two ends of the sampling pipe are closed. The sampling pipe is provided with an opening corresponding to the oil inlet gap. The oil compensation type transformer can collect oil samples at multiple positions of the bottom of the transformer, improves oil sample collecting accuracy, prevents transformer oil lack caused by oil sample collection in the oil cavity and is widely applied to power supply systems.

The invention discloses an R-Button game rehabilitation training device for the hand function of old people, which comprises a bandage, an APP module and a hardware part; the hardware part includes: abox body, a pressure key, a pressure sensor, a Bluetooth, a lithium battery and a circuit board; the box body includes a box cover and a main body; the pressure key is installed on the surface of thebox cover, and the pressure sensor, the Bluetooth, the lithium battery and the circuit board are respectively installed in the main body, and the box body is fixed on a human body through the bandage; the APP module functions include: an APP small game, a set task plan, a task schedule, card punching sharing, a ranking list and a training trend report, combined with the corresponding APP small game, the rehabilitation training is finished. The training device is provided with one key and a variety of training modes, the operation is easy and convenient. The problems of boredom and resistancein the training process is solved, by combining the small game and rehabilitation training, the enthusiasm of the old people in the training process is stimulated, so that the old people can easily and actively complete the training.

The embodiment of the invention provides an identity verification method and device. The method comprises the following steps: acquiring registration information of a to-be-tested user and behavior data of the to-be-tested user; determining a group to which the to-be-tested user belongs according to the registration information; determining the matching degree of the user to be tested and the group according to the behavior data of the user to be tested; and judging whether the to-be-tested user is consistent with the registration information according to the matching degree. The embodiment ofthe invention provides an identity verification method. The method comprises the steps of obtaining registration information of a to-be-tested user and behavior data of the to-be-tested user; a groupto which a user to be tested belongs is determined according to the registration information, the matching degree of the user to be tested and the group is determined according to the behavior data of the user to be tested, identity verification is carried out according to the matching degree, manual intervention is less, flexibility is high, labor cost is low, the coverage area is comprehensive,the extension application field is wide, and the method can be applied to multiple industries such as credit investigation, finance, e-commerce and logistics.

The invention provides a wireless sensor network analysis method, belonging to the technical field of wireless sensor networks, relating to a wireless sensor network analysis method. The invention provides the wireless sensor network analysis method with good stability and visual display. The method comprises a model part of completing the data model of data processing, service logic, defining system processing of a system and comprises four types of frame formats comprising an IEEE 802.15.4 standard definition. The frame formats comprise a beacon frame, a data frame, an acknowledgment frame and a command frame, the command frame is divided into an association request, an association response, a disassociate notification, a data request, a PAN ID conflict notification, an isolated notification, a beacon request, and a coordinator rearrangement and GTS request.

The invention provides a molecular marker for identifying a common threewingnut root medicinal material, a primer pair, a PCR reagent, a kit and application of the molecular marker in identification of the common threewingnut root medicinal material. The molecular marker is in a nucleotide sequence shown in SEQ ID NO.3, and the primer pair can amplify the nucleotide sequence shown in SEQ ID NO.3. The invention further provides an identification method of the common threewingnut root medicinal material. Through the molecular marker, the primer pair, the PCR reagent, the PCR kit and the identification method, whether or not the molecular marker is amplified is detected so that the common threewingnut root medicinal material can be identified, the repeatability is high, and the defects of high subjectivity and poor repeatability of a traditional identification method are overcome.

The invention discloses a method for detecting chloroform in a sulfur-containing quantum dot solution. The method comprises the following steps of: providing an initial sulfur-containing quantum dot solution; carrying out illumination treatment on the initial sulfur-containing quantum dot solution; and putting one section or all of the part, covered with a carbonate film, of a carrier for testinginto the sulfur-containing quantum dot solution subjected to illumination treatment, and judging whether the initial sulfur-containing quantum dot solution contains chloroform or not. According to themethod provided by the invention, whether chloroform exists in the sulfur-containing quantum dot solution can be simply, visually and efficiently judged accurately.

The invention provides a thin layer detection method for quickly identifying honeysuckle and mountain honeysuckle, which solves the problems of low reliability, high cost, and long time in the existing four methods for identifying honeysuckle and mountain honeysuckle. In this method the characteristic representative ingredients of honeysuckle and mountain honeysuckle are selected to identify the two, including the following steps: 1) preparation of reference solution and sample solution; 2) thin layer spot sample; 3) preparation of developing agent; 4) deployment; 5) color development and inspection. This thin layer detection method is simple, fast, high sensitivity, and strong specificity, the contrast between honeysuckle and mountain honeysuckle is obvious, the results are intuitive andeasy to identify and distinguish, and it provides a reliable identification method to ensure the distinction between honeysuckle and mountain honeysuckle.

The invention discloses a simulated mine for international humanitarian mine-sweeping training. The simulated mine comprises a mine shell, wherein a mine upper cover is arranged on the mine shell; themine shell is internally provided with a triggering switch, a power supply, a control circuit module and a GPS (Global Positioning System) positioner; the power supply, the triggering switch, the control circuit module and the GPS positioner are connected by lines; the triggering switch and the control circuit module are used for controlling the GPS positioner to be conducted with/disconnected from the power supply, and when the GPS positioner is conducted with the power supply, the GPS positioner searches for satellite signals and transmits positioning data onto one server of internet. The simulated mine disclosed by the invention has the beneficial effects that convenience is brought for intuitively judging triggering the position of the mine from a computer or a mobile phone, so that the capability of persons for detecting and sweeping the mine is effectively judged, the truth is high and the teaching benefit is improved; the repeated use for multiple times can be achieved, and theconvenient and reliable effects can be achieved, so that the use cost can be reduced.