35results about How to "Fast and accurate judgment" patented technology

An air conditioner and a control method thereof are disclosed. The air conditioner includes a distance detection unit which detects a distance to an obstacle in an indoor space, a temperature detection unit which detects a space temperature of the indoor space, a rotation unit which rotates the distance detection unit and the temperature detection unit, and a controller which controls to detect distance information and temperature information according to space regions obtained by dividing the indoor space into a plurality of regions in a rotation direction while the distance detection unit and the temperature detection unit are rotated, to sequentially store the distance information and temperature information according to the space regions,; and to determine whether there is a human body in a corresponding space region and a position of the human body based on a variation in the stored distance information and temperature information. Accordingly, it is possible to quickly and accurately distinguish an object from a human body, and also possible to quickly and accurately determine even a hardly moving body, thereby improving pleasantness of a human body by concentrating or removing cool air or warm air to or from the human body according to a user's preference.

The invention relates to a method for detecting a steady state and judging an operation condition of a water treatment process in a thermal power plant. The method comprises the steps of (1), collecting sensor data comprising pressure of a water outlet header pipe of a water pump, water inlet flow of a cation bed, water inlet flow of an anion bed, pressure of a cationic exchanger inlet, pressure of an anion exchanger inlet, pressure of a mixed ion exchanger inlet, ion concentration and the like to determine steady state thresholds of the sensors and operation condition switch thresholds; (2), detecting operation condition steady state and judging operation condition stages: 2.(1), calculating and judging whether the process is in a steady state or not according to the steady state thresholds of the sensors of the step (1), performing the step 2.(2) if the process is in unsteady state in judgment; 2.(2), calculating and judging that whether the operation condition switches according to the operation condition switch thresholds of the step (2), performing the step 2.(3) if the operation condition switches in judgment; and 2.(3), calculating Euclidean distance and similarity according to data which is sampled in real time to judge the operation condition stage. The method is capable of accurately judging the steady state and the operation condition switch of the water treatment process, transiting the unsteady state process and monitoring the data of the sensors in real time automatically and dynamically.

The invention discloses an energy storage inverter grid-connected and off-grid and off-grid and grid-connected seamless switching control method. Instantaneous active power and reactive power are calculated through an inverter output voltage module value and components of the inverter output voltage module value and current in a D axis and a Q axis under a synchronous rotating coordinate system; simulating droop characteristics of the power grid, and setting reactive power and voltage amplitude droop reactive power loop output voltage and active power and frequency droop active power loop frequency; and the obtained synthesized reference voltage passes through a voltage and current double-loop controller and then is subjected to SVPWM (Space Vector Pulse Width Modulation) wave sending, sothat the output voltage of the inverter has the same droop characteristic as the power grid voltage. According to the control method, bidirectional seamless switching between grid connection and disconnection and grid connection and disconnection and connection can be achieved, the loop structure of the controller is kept unchanged before and after switching, the output voltage can be kept continuous at the moment of switching and can be stabilized to continue to operate under the off-grid condition, and seamless switching is achieved. Meanwhile, the power grid fault can be quickly and accurately judged.

The invention provides an LKJ train control system state monitoring and fault diagnosis method. When the CPU processor of a detection module cannot receive a speed pulse signal or the received speed pulse signal has abnormality in comparison with a preset standard value, a first electronic switch is switched to a first channel self-checking circuit, and the CPU processor transmits signals to enter the first channel self-checking circuit. A first signal acquisition circuit acquires the signals passing through the first channel self-checking circuit and transmits the signals back to the CPU processor. The PCU judges the signals, and the channel of signal transmission has no problem and external equipment has problem if the signals are the same; or the signals transmitted by a pressure sensor are processed in the same way. Meanwhile, the invention also provides a system applying the LKJ train control system state monitoring and fault diagnosis method. The system comprises a pulse signal detection module and a current signal detection module which are connected with the detection device. Whether the channel or the external equipment has the abnormal accident can be rapidly and accurately judged so that maintenance is further facilitated.

Disclosed is a medium recognition apparatus for determining the type of a medium by using color information obtained by scanning the inserted medium, as well as a method for determining the type of a medium by using the apparatus. Color information and size information obtained by scanning only a partial region of a medium image, the hue of the medium image scanned by the image sensor, or RGB channel color information scanned by the color sensor is compared with pre-stored reference information to determine the type of the medium. This guarantees that the type of the medium is determined quickly and accurately based on simple comparing results.

The invention comprises: carrier, sampling pad, reaction block, peridium film and absorbent paper. Said sampling pad, reaction block, peridium film and absorbent paper are sequentially pasted on the carrier; said reaction block containing the antigen and antibody to the 6-acetyl morphin which is a specificity metabolite of heroin; the antigen to the 6-acetyl morphin has B,C two structures; the B is 6 bits and is connected to the bovine serum albumin; the C is connected to the bovine serum albumin through N base group.

The invention relates to a method for obtaining an endgame board. The method includes the steps of generating an initial board of card games, and the initial board comprising at least two sets of cards. Each set of cards comprises a specified number of virtual cards. A solution tree of the initial board is searched by a first search algorithm for searching for a solution for winning a specified set of cards in the at least two sets of cards, and the solution tree is used to indicate the various solutions for initial board. When the number of solutions for winning the specified set of cards isless than a preset threshold and is not zero, the initial board is acquired as the endgame of the card games. Compared with the method of manually setting an endgame board, the method can quickly andaccurately determine whether a board meets the requirements of an endgame, thereby achieving the effect of improving the efficiency and accuracy of the formation of a card game.

The invention discloses a device and a method for estimating tire pressure in a vehicle, the method for estimating the tire pressure comprises the steps: the FFT (Fast Fourier Transform) is performed on a wheel speed signal to obtain an FFT signal pattern of a resonance frequency band of an FFT signal, the FFT signal pattern saves a PCA (Principal Component Analysis) weighting coefficient to execute the PCA and saves an LDA (Linear Discriminant Analysis) differentiate coefficient to execute LDA, so as to distinguish a plurality of tire pressure states, the method of the device for estimating the tire pressure comprises comprises: the wheel signal is detected by a wheel speed sensor; the FFT is executed to the detected wheel signal; the PCA applying the saved PCA weighting coefficient projects the FFT signal pattern of the resonance frequency band of the FFT signal to a PCA space; the corresponding projected data of the PCA space execute the LDA adopting the saved LDA differentiate coefficient, so as to judge a tire pressure state of the corresponding projected data of the PCA space.

The invention provides an antenna detection system which is used for detecting a to-be-detected antenna. The antenna system comprises a network analyzer and a test device. The test device comprises a first substrate, a second substrate, and a standard antenna. The first substrate and the second substrate are arranged in parallel. The to-be-detected antenna is removably arranged on the second substrate. The standard antenna is fixedly arranged on the first substrate, and is used for receiving a test signal from a first port of the network analyzer and sending a radiation signal according to the test signal. The to-be-detected antenna can receive the radiation signal and transmit a to-be-detected signal to a second port of the network analyzer. The network analyzer gets an S21 parameter according to the test signal and the to-be-detected signal, and compares the S21 parameter with a theoretical value calculated according to the work frequency and fixed distance of the corresponding to-be-detected antenna to output the detection result of the to-be-detected antenna. Through the antenna detection system of the invention, whether the actual gain of a to-be-detected antenna is in accordance with the requirement can be judged quickly and accurately, and the efficiency of detection operation and the quality of antennas are improved significantly.

The invention relates to a method for judging the surface segregation state of an alloy and a method for manufacturing an alloy material. According to the method for judging the surface segregation state of the alloy and the method for manufacturing the alloy material, aiming at a specific material system, the surface segregation state of the alloy is judged, the element composition of the alloy is selected for manufacturing, aiming at the alloy required to realize material surface segregation modification, the proper element addition types can be screened and calculated for manufacturing, andaiming at an alloy system required to inhibit surface segregation, an element type combination capable of inhibiting surface segregation can be screened for manufacturing. The method for judging thesurface segregation state of the alloy and the method for manufacturing the alloy material have the advantages that the surface segregation state of the alloy can be conveniently and accurately judged, and the specific system alloy capable of regulating and controlling the material surface segregation state can be manufactured.

The invention discloses a leakage testing device suitable for a high-pressure common rail transverse cavity oil inlet type oil injector of a piston type diesel engine. The device comprises a heating box used for heating a cylinder cover oil injector assembly, a common rail pipe, a high-pressure oil pump connected with the common rail pipe, an oil delivery pump connected with the high-pressure oilpump and an oil consumption measuring instrument connected with the oil delivery pump and an oil tank, wherein the cylinder cover oil injector component comprises an engine cylinder cover and a transverse cavity oil inlet type oil injector arranged on the engine cylinder cover, the common rail pipe is connected with the transverse cavity oil inlet type oil injector through a high-pressure oil pipe, a fuel oil metering unit is arranged on the high-pressure oil pump, and a rail pressure sensor is arranged on the common rail pipe. The leakage testing device suitable for the high-pressure common-rail transverse cavity oil inlet type oil injector of the piston type diesel engine can quickly and accurately judge a leakage point of the transverse cavity oil inlet type oil injector with low cost.

The invention relates to a vehicle accident monitoring method, a system and computer equipment. The method comprises the steps: obtaining the audio and video of a monitoring site; determining a firstconfidence coefficient according to the decibel of the audio; determining a second confidence coefficient according to the position relationship between the vehicle and the pedestrian in the video; determining a third confidence coefficient according to the posture change of the pedestrian; and performing weighted processing based on the first confidence coefficient, the second confidence coefficient and the third confidence coefficient to obtain a comprehensive confidence coefficient, and when the comprehensive confidence coefficient is greater than a preset threshold, determining that the accident is a vehicle collision accident, thereby solving the problem of low efficiency of recognizing the vehicle collision accident, and realizing rapid and accurate judgment of the vehicle collisionaccident.

The invention discloses a chemical reagent for detecting formaldehyde in food and a preparation method thereof. The chemical reagent is prepared from, by weight, 0.4-0.9 part of ammonium acetate, 16-22 parts of ethyl alcohol, 0.8-2 parts of disodium hydrogen phosphate dodecahydrate, 0.1-0.4 part of luminol, 4-6 parts of sulphur, 3-6 parts of chalcanthite, 2-5 parts of sodium hypochlorite, 2.4-4.5parts of oxalic acid, 4-8 parts of acetylacetone, 5-6 parts of petroleum ether and 1.5-3 parts of potassium chloride. The raw materials are wide in source, the preparation technology is simple, use isconvenient, whether food contains formaldehyde or not can be judged rapidly and accurately, the accurate rate is high, and the using stability is good.

The invention relates to a disinfection system for medical examination instruments based on an intelligent algorithm. The system comprises a disinfection bin, an ultraviolet lamp, a first visual collector, a heating wire, a first temperature detector, a first conveyor belt, a disinfectant recovery tank, a disinfectant storage tank, a nozzle, a drying bin, a second visual collector, a fan, a drying pipe, a heater, a second conveyor belt, a fan and a central control unit. According to the system, the independent bins are used for disinfecting and drying the appliances respectively, the situation of incomplete disinfection can be avoided, so that the situation of secondary infection or cross infection generated when the appliances are used is effectively avoided, and the disinfection efficiency of the system on the appliances is effectively improved. Meanwhile, whether a spray head uniformly sprays the disinfectant on the surface of the appliance or not is judged by using the average distribution density of the disinfectant drops, so that whether the disinfection on the surface of the appliance is completed or not is quickly judged, and the disinfection efficiency of the system on the appliance can be further improved.

The invention relates to a system for generating the employee health degree through use traces. The system comprises an input module, a storage module, a central control module, a monitoring module and a statistics module. According to the system in the invention, physique information of a user is input in advance; the system calculates the preset exercise amount suitable for various different users through a specified formula on the basis of each piece of physique information; the problem that the detection result deviation value of a single evaluation standard is large due to the differencebetween different individuals can be effectively avoided; the detection efficiency of the system is improved; meanwhile, the system is remotely connected with a monitor; a user can carry or wear the monitor to enable the system to monitor the exercise amount of the user in real time; the timeliness of the detection system can be improved by replacing periodic single detection with real-time monitoring; it can be guaranteed that the user persists in exercising; and the detection efficiency of the system is further improved.

The invention relates to an elevator fault discriminating method, a monitoring system and a computer storage medium. Through collection of elevator running state signals, according to logic combination of fault information, emergent stop signals and elevator locking signals in the elevator running state signals, it is automatically identified whether a fault occurring in an elevator is an elevatorstoppage fault. According to the elevator fault discriminating method, the monitoring system and the computer storage medium, elevator fault information is effectively classified and screened throughthe elevator locking signals and the emergent stop signals, and fault information which a user is interested in is extracted out; moreover, the elevator locking signals and the emergent stop signalsare directly resorted to, content of fault information does not need to be considered, and thus the judging speed is high and judgment is accurate; and after screening of fault information, fault types which the user is interested in can be sent to the user, harassment to the user is reduced, and resources sent are saved.

The invention relates to a miniature circuit breaker adopting light to indicate working status, which consists of a circuit breaker body and a working status indicator, wherein the circuit breaker body consists of an inner working cavity and a shell; the working status indicator is positioned in a cavity of the circuit breaker body and is an electrical display circuit consisting of electrical luminous indicators connected in series, a current-limiting resistor and lead wires led out at two ends; the lead wires led out at two ends are in bridge connection with outlet terminals of the circuit breaker or any two conducting strips of an arc extinguish chamber between the terminals; the shell is a transparent structural member or an opaque structural member which is arranged above or below an operating handle and provided with transmittance holes on a main working surface; the electrical luminous indicators can be energy-saving neon lights or LED light emitting diodes; despite ambient light, the on / off of the indicators can be observed through the transmittance holes on the working panel or the transparent shell, so that the definite working status of the circuit breaker can be quickly, accurately and reliably, the remote management, monitoring and safety maintenance are convenient, and the miniature circuit breaker has strong practicability.

The invention discloses a right-angle plate detecting device comprising a bracket, a rocker and two elastic members, wherein the bracket includes a base and a vertical stand, the base is provided with a reference surface and a receiving cavity, the vertical stand is vertically fixed to the reference surface, the top of the rocker is in rotatable connection with the top of the vertical stand, the bottom of the rocker extends downwardly into the receiving cavity, one end of each elastic member is fixedly connected with the corresponding inner sidewall of the receiving cavity, the other end of each elastic member is fixedly connected with the bottom of the rocker, and the elastic members draw the rocker to form a 90-degree angle with the reference surface. When the right-angle plate detecting device is used, the horizontal plate of a right-angle plate adheres to the reference surface and the vertical plate of the right-angle plate adheres to the rocker. If the rocker does not swing when the vertical plate adheres to the rocker, the horizontal plate and the vertical plate have a 90-degree intersection angle and the right-angle plate is qualified. On the contrary, if the rocker swings, the horizontal plate and the vertical plate do not have a 90-degree intersection angle and the right-angle plate is unqualified. The right-angle plate detecting device can quickly and accurately determine whether the right-angle plate is qualified and improve detection accuracy and detection efficiency.

The invention relates to a method for detecting a steady state and judging an operation condition of a water treatment process in a thermal power plant. The method comprises the steps of (1), collecting sensor data comprising pressure of a water outlet header pipe of a water pump, water inlet flow of a cation bed, water inlet flow of an anion bed, pressure of a cationic exchanger inlet, pressure of an anion exchanger inlet, pressure of a mixed ion exchanger inlet, ion concentration and the like to determine steady state thresholds of the sensors and operation condition switch thresholds; (2), detecting operation condition steady state and judging operation condition stages: 2.(1), calculating and judging whether the process is in a steady state or not according to the steady state thresholds of the sensors of the step (1), performing the step 2.(2) if the process is in unsteady state in judgment; 2.(2), calculating and judging that whether the operation condition switches according to the operation condition switch thresholds of the step (2), performing the step 2.(3) if the operation condition switches in judgment; and 2.(3), calculating Euclidean distance and similarity according to data which is sampled in real time to judge the operation condition stage. The method is capable of accurately judging the steady state and the operation condition switch of the water treatment process, transiting the unsteady state process and monitoring the data of the sensors in real time automatically and dynamically.

The invention relates to a method for determining the segregation state of the alloy surface and a method for manufacturing alloy materials. For a specific material system, the segregation state of the alloy surface is determined and the element composition of the alloy is selected for manufacture. For alloys that need to achieve material surface segregation modification, Appropriate element addition types can be screened and calculated and manufactured; for alloy systems that need to suppress surface segregation, the combination of element types that inhibit surface segregation can be screened and manufactured. It can conveniently and accurately determine the segregation state of the alloy surface and produce a specific system alloy that can control the segregation state of the material surface.

The present invention relates to the technical field of grid data visualization, in particular to a grid real-time data visualization display method and system, including a control unit, a detection unit, a model building unit and a visualization unit. In the present invention, by setting an interactive visualization unit, the visualization unit transmits demand instructions to the control unit, so that the control unit controls the model construction unit to construct the corresponding model, thereby effectively ensuring that the system can perform simulations for different requirements. At the same time, the model construction unit Carry out preliminary outage simulation based on the received data to generate a power outage simulation model, and the control unit compares the actual power outage area in the region with the power outage simulation model to determine the accuracy of the forecast simulation and re-build the model according to the judgment results The updating of the unit can gradually increase the simulation accuracy of the system for the power failure simulation model, thereby effectively improving the visualization efficiency of the system of the present invention.

The invention relates to the technical field of electric appliance control, in particular to an electric appliance control method, an electric appliance control system and a robot, and the electric appliance control method comprises the following steps: receiving a control instruction for controlling a target electric appliance; calling the electric appliance information of the target electric appliance, and judging whether the mobile equipment is within the wireless receiving range of the target electric appliance or not, and when the mobile equipment is not within the wireless receiving range of the target electric appliance, sending the target electric appliance to the mobile equipment; and the movable equipment moves to the wireless receiving range of the target electric appliance and wirelessly controls the target electric appliance. According to the electric appliance control method, the electric appliance control system and the robot provided by the invention, the convenience of electric appliance control is effectively improved.

A method for judging the number of layers of graphene oxide based on thermal enhanced optical contrast comprises the steps that firstly, a graphene oxide solution is spin-coated, dripped or immersed on the surface of a pre-cleaned target substrate, natural drying is conducted, then the target substrate is put into a heating device, vacuumizing is conducted, the temperature is increased to the hightemperature, and each heating temperature is kept for a certain period of time; meanwhile, after each step of heat treatment is completed, an optical microscope is used for shooting an optical picture adsorbed with a graphene oxide film area in the same sample area on the surface of the target substrate, and R, G or B values of the graphene oxide film and the surface of the adjacent substrate inthe optical picture are collected through RGB reading software; the average value of the optical contrast of thermal enhancement of the graphene oxide film is obtained through an optical contrast formula, the number of layers of graphene oxide is simply, rapidly and accurately judged by utilizing the optical contrast close to complete recovery after thermal treatment of graphene oxide, and the method is low in equipment requirement, low in detection cost and capable of detecting a large number of samples at a time.

Disclosed is a medium recognition apparatus for determining the type of a medium by using color information obtained by scanning the inserted medium, as well as a method for determining the type of a medium by using the apparatus. Color information and size information obtained by scanning only a partial region of a medium image, the hue of the medium image scanned by the image sensor, or RGB channel color information scanned by the color sensor is compared with pre-stored reference information to determine the type of the medium. This guarantees that the type of the medium is determined quickly and accurately based on simple comparing results.

The invention relates to a method for detecting skip printing of characters of a circuit board, which comprises the following steps of: (1) providing the circuit board to be detected, wherein the circuit board comprises a conducting layer and a soldermask layer which are sequentially arranged; the conducting layer comprises a first test pad, a second test pad and a connecting line communicated between the first test pad and the second test pad; and the soldermask layer is internally provided with a first through hole corresponding to the first test pad and a second through hole corresponding to the second test pad; (2) providing an electrical testing device which comprises an electrical tester, a first test probe and a second test probe; and (3) adopting the electrical testing device to detect an area corresponding to the first test pad and an area corresponding to the second test pad, and judging whether insulated masked patterns are formed on the first test pad area and the second test pad area according to electrical conduction condition detected by the first test probe and the second test probe so as to judge whether the skip printing the characters is existed on the circuit board or not.

The invention relates to the technical field of civil construction, in particular to a construction method for widening, filling, and solidifying soil for highway inter-turn roadbeds. Bulldozers are used to level the subgrades in each area in turn, and graders are used to level the subgrades in each area in turn; the subgrades in a single area are rolled and it is determined whether the subgrade meets the standards after rolling; Add solidified soil layer by layer; renovate the subgrade surface and slope. After completing the rolling of the single-layer roadbed, the present invention will determine whether the flatness or compaction of the roadbed meets the standard according to the thickness change of the roadbed, and use the corresponding operation according to the judgment result to make the single layer after rolling meet the standard. , effectively improving the filling efficiency for the roadbed.

The invention relates to the technical field of civil construction, in particular to an expressway interchange ramp roadbed widening and solidified soil filling construction method which comprises the steps that the soil feeding range of a roadbed of each area is determined; using solidified soil to loosely lay the roadbed in each area; a bulldozer is used for sequentially flattening the subgrade of each area, and a land leveler is used for sequentially leveling the subgrade of each area; the roadbed in a single area is rolled, and whether the roadbed meets the standard or not is judged after rolling; the roadbed meeting the standard is subjected to watering maintenance, and solidified soil is added layer by layer after maintenance is completed; and renovating the surface of the roadbed and the slope. After rolling of the single-layer roadbed is completed, whether the flatness or compactness of the roadbed meets the standard or not is judged according to the thickness change amount of the roadbed, corresponding operation is used according to the judgment result so that the rolled single layer can meet the standard, and the filling efficiency of the roadbed is effectively improved.

An air conditioner and a control method thereof are disclosed. The air conditioner includes a distance detection unit which detects a distance to an obstacle in an indoor space, a temperature detection unit which detects a space temperature of the indoor space, a rotation unit which rotates the distance detection unit and the temperature detection unit, and a controller which controls to detect distance information and temperature information according to space regions obtained by dividing the indoor space into a plurality of regions in a rotation direction while the distance detection unit and the temperature detection unit are rotated, to sequentially store the distance information and temperature information according to the space regions,; and to determine whether there is a human body in a corresponding space region and a position of the human body based on a variation in the stored distance information and temperature information. Accordingly, it is possible to quickly and accurately distinguish an object from a human body, and also possible to quickly and accurately determine even a hardly moving body, thereby improving pleasantness of a human body by concentrating or removing cool air or warm air to or from the human body according to a user's preference.

This application is about a method for obtaining endgame cards. The method includes: generating an initial card face of the card game, the initial card face comprising at least two card sets, each card set comprising a specified number of virtual cards; searching the initial card face through a first search algorithm A solution tree, the first search algorithm is used to search for a winning solution for a specified card set in the at least two card sets, and the solution tree is used to indicate various solutions of the initial card face; when the specified When the number of winning solutions of the card set is less than a preset number threshold and not zero, the initial card face is obtained as the endgame card face of the card game. Compared with the method of manually setting endgame cards, the above scheme can quickly and accurately judge whether a card meets the endgame requirements, thereby achieving the effect of improving the efficiency and accuracy of endgame card generation in card sports.