193results about How to "Reduce application difficulty" patented technology

The invention relates to a system and method for detecting the quality of a metal cap based on machine vision, used for detecting the quality defect of the metal cap and rejecting the inferior quality product. The detection system comprises an optical imaging device, an image processing device, a rejecting device and a conveying belt, wherein the optical imaging device comprises a planar array industrial camera, a first optical detection sensor and a light source; the image processing device is used for processing the image; and the rejecting device comprises a control circuit board, a second optical detection sensor, a solenoid valve and an injection tube. The method for detecting the quality of the metal cap based on machine vision comprises the following steps of: acquiring an interested maximum outline scale of a template cap image; establishing a rotational invariance characteristic template matrix for the template cap image; acquiring a round outline of the cap to be detected according to the interested maximum outline scale; calculating the rotational invariance characteristic matrix in the coverage of the round outline of the cap to be detected; and matching the rotational invariance characteristic matrix with the rotational invariance characteristic template matrix, so as to judge whether the cap to be detected is a qualified product or an inferior product.

The invention provides a workflow operation method and a system thereof. The method comprises the steps: presetting a flow definition model and a flow operation model, wherein the flow definition model comprises preset task definition, flow definition, node and migration objects, the flow operation model comprises preset flow instance, flow branch, task instance and flow variable objects; creating a flow instance according to the preset flow definition, and creating an execution thread corresponding to the flow instance; triggering the execution thread to flow, so as to acquire migration flow direction of a left flow at an initial node of the flow instance; and calling the migration flow direction of the flow to trigger workflow to operate. The method and the system provided by the invention can firstly meet workflow operation requirements of high data quantity and high concurrent load, secondly reduces application difficulty of development, testing and management, and finally has simple technical architecture and low hardware requirement while meeting performance requirement and also meets the low cost intensification requirement.

The invention relates to a simple and easy preparation method for super-hydrophobic fiber and textile with high contact angle and low rolling angle and application thereof. Surface chemical modification is directly carried out on intrinsic coarse structures on the surface of the fiber and textile so as to prepare a fiber product with super-hydrophobic performance; the method comprises the following steps of: firstly, cleanly washing materials, then carrying out isocyanate modification on the material, and finally modifying low surface energy material. The raw material is cheap and is easily available; reaction conditions are relatively mild; the operation is simple; and the requirement on the device is low. The obtain product has good super-hydrophobic performance; the contact angle of 10microliter of water is 156 degrees; and the product has wide application in fields of self-cleaning fibers and textiles.

The invention provides a parking lot security management system and method based on artificial intelligence. The parking lot security management system comprises a video image target detection subsystem module, a parking management module, an abnormal behavior detection module, a database storage module, a display module, a hardware device module and a management server of a central control systemconnected with the modules or subsystem groups. The system can achieve intelligent security monitoring and management of vehicles and pedestrians appearing in a parking lot, improves the security andprotection management efficiency of the parking lot and decreases the manual workload.

The invention discloses a corrective natural fracture hydraulic fracturing in-situ stress measurement method. According to the method, a mechanical equation is established for shear stress widely existing in a natural fracture surface, and an in-situ stress tensor is obtained through inversion by searching for a natural fracture surface friction coefficient by use of a least square method and a computer program trial and error method. Through the method provided by the invention, the number of natural fractures needed by a conventional natural fracture hydraulic fracturing in-situ stress measurement method is substantially reduced, many hypothesis conditions set for an in-situ stress field during application of the natural fracture hydraulic fracturing in-situ stress measurement method are eliminated, the application difficulty of the natural fracture hydraulic fracturing in-situ stress measurement method is lowered, and the accuracy of the method is improved.

The invention provides an establishing method of a recoverable immortalized hepatic cell line. The establishing method comprises the following steps: separating a hepatic progenitor cell from liver in a mouse which is 12.5-14.5 days old in an embryonic period; guiding a retrovirus containing genes SV40T and HSV-TK into the hepatic progenitor cell; screening a monoclonal cell strain having a hepatic progenitor cell marker and having a function of differing to a mature hepatic cell; then guiding a retrovirus containing CD gene into the cell strain so as to obtain recoverable immortalized hepatic cell carrying double suicide genes. The cell strain can multiply in vitro to obtain the phenotype and functions of a normal hepatic cell, the safety of the immortalized cell becomes adjustable through controllable modes such as locus recombination and drug screening; when the cell is used in a human body, the biological safety of the immortalized cell is ensured to the greatest extent and the dangerousness of the immortalized cell is reduced; therefore, a reliable, safe and ideal hepatic cell material is provided for bioartificial liver technology.

The invention discloses a brushless direct-current motor drive chip and a brushless direct-current motor drive system, and belongs to the technical field of motor control. The chip comprises a clock generation circuit, a power management circuit, an analog-to-digital conversion circuit used for converting analog signals of motor control parameters and motor state parameters into digital signals, a position detection circuit used for converting an output signal of a position sensor into a digital signal and acquiring rotor position information and current speed, a digital processing unit used for outputting PWM signals of motor coils of all phases according to the motor rotor position and current speed, the motor control parameters, the motor state parameters and a modulation algorithm, and a gate drive circuit used for converting the PWM signals of the motor coils of all phases into high-voltage drive signals through a bootstrap circuit and outputting the high-voltage drive signals. The system comprises a position sensor, a power tube, and the brushless motor drive chip. By integrating brushless direct-current motor control and the drive chip, the degree of integration and flexibility of the chip are improved greatly.

The present invention relates to a wired testing method of intelligent antenna DOA estimation performance. By utilizing a vector direction diagram of an antenna, the response of an intelligent antenna to a direction of arrival (DOA) is expressed as normalized amplitude and phase distribution of array unit output, the normalized amplitude and phase distribution is realized by using a real amplitude adjuster and a real phase regulator, the amplitude adjuster and the phase regulator with realization of the normalized amplitude and phase distribution are inserted into an intelligent antenna system, the real simulation of the direction of arrival is realized, and DOA estimation performance (including direction of arrival estimation, beam reinforcement or zeroing performance) of the intelligent antenna is determined through a wired test. According to the testing method, no far field or compact range field condition is needed in testing and verification of the DOA estimation performance, requirements to a field and an environment are low, the difficulty of application is reduced, the actual performance of intelligent antenna can be reflected more truly, and the method has wide applicability and popularization and application value.

The invention discloses a concave conformal dielectric resonator antenna and a working method thereof, and the antenna comprises a dielectric resonator, a ground plate, a dielectric substrate, a feedseam and a feed line. The ground plate is conformal with the dielectric resonator, and the dielectric resonator is fixed at the middle of ground plate. The upper and lower surfaces of the dielectric substrate are respectively attached to and cover the ground plate and the feed line. The center of the ground plate is provided with the feed seam in a mode of etching. The antenna is fed by the feed line, and then the electromagnetic wave energy is coupled and conducted to the dielectric resonator on the upper surface through the feed seam on the ground plate. The antenna has a very low profile due to the conformal structure, reduces the space occupied by the antenna in a vertical direction, is easy for processing, is of a wearable structure, is wide in application range, is flexible in application scenarios, has a higher gain and a narrower beam, and has a bigger bandwidth.

The invention discloses a self-adaption intelligent system for monitoring abnormal conditions of turning tool and a method thereof; thermoelectric current is generated through a temperature difference between a blade participation cutting area and the bottom of a tool body in the cutting process; electricity is supplied to other vibration testing devices by dint of the current acquisition and a voltage controller; and finally, vibration features in the cutting process are transferred to such electronic equipment as mobile phones, computers or PDA of a visible monitoring platform through WIFI signals to achieve the purpose of real-time monitoring of a turning tool working condition through wireless connection. The system and the method can realize self-power supply in the cutting process and automatic report of the tool working condition, that is, the self-adaption intelligent monitoring function is realized.

The invention discloses a health assistance system based on health information acquisition and analysis. The system comprises a data acquisition module, a backend analysis module and a frontend interaction module. Multiple mechanisms which comprises an account number protecting mechanism, an encryption transmission mechanism and a user feedback mechanism are utilized. According to health expert opinions and an artificial intelligence algorithm, through perfecting the mode of a health characteristic table, a recommending article database is enriched. The system realizes relatively abundant frontend function designing and has certain user adhesiveness. The system has advantages of realizing low requirement and low dependence to a community hospital, reducing technology application difficultyand enlarging application area of technology. The system aims to perform a health assistance function and does not require to coping with challenges of many diseases, large individual difference andinsufficient measuring precision. Only suggestions of corresponding health characteristic to the user are required. The suggestions comprise science popularization health knowledge, sleeping, exercise, diet, etc. The system has a unified service management function which comprises auxiliary mechanism such as privacy protection, user right protection and insurance.

The invention discloses an industrial production method of a low PCBs environmentally friendly yellow pigment PY83 for plastic cement. The method includes steps of diazo component pulping treatment, diazotization reaction, preparation of a base solution, coupling liquid preparation, coupling reaction and pigmentation treatment. Based on an existing pigment yellow 83 production method, the method can effectively prevent from generating the side reaction of polychlorinated biphenyl in a coupling reaction process by adding substituted olefin (namely, methylolacrylamide) in the coupling reaction,so that the purpose of removing PCBs can be achieved without influencing pigment performance, the polychlorinated benzidine content in a pigment product can be effectively controlled to be lower thana limit value below 25 ppm of an environmentally friendly requirement, the environment problem of high polychlorinated benzidine content in the pigment product of an existing production method can besolved, the steps of post-treatment and polychlorinated benzidine removing through washing can be decreased, and production costs can be reduced as well. The method is reasonable in technology and suitable for large-scale production.

The invention belongs to the technical field of power system control and particularly relates to a plug-and-play power system stabilizer design algorithm. The plug-and-play power system stabilizer design algorithm comprises the steps of: building a local model by employing voltage of a high voltage side bus of a transformer at an outlet of a generator, carrying out linearization on equation sets of the model and then substituting the equation sets into a differential equation set and arranging the equation set into a matrix form; solving steady-state initial values of other variables according to system parameters and given variable initial values under a steady-state operating point; calculating an open-loop electromechanical oscillation mode as shown in the specification; designing the power system stabilizer by a phase compensation method; arranging the designed stabilizer on the generator for simulation verification; and changing the system operating state, namely changing output power of the generator, collecting a local signal again through an automatic collection device, designing stabilizer parameters after the operating state changes and carrying out simulation verification, thereby achieving the plug-and-play function and the robustness of the stabilizer under different operating states of the system.

An industrial production method for a red with small precipitation on a machine surface and a method for detecting precipitation on a machine surface and belong to the technical field of pigment synthesis and detection. Amino chlorotoluene sulfonic acid sodium salt is subjected to acidification to obtain a turbid liquid; a sodium nitrite water solution is added to achieve diazotization so as to obtain a diazotized solution; the diazotized solution and 3-Hydroxy-2-naphthoic acid are subjected to coupled reaction with existence of a dispersant, and the obtained product is laked to obtain a red. Before laking, the dispersant is added to coat the pigment so as to obstruct growth of the pigment crystal form, the dispersity is improved, the applicability of the machine surface precipitation during application of the blue-ray red to plastics is remarkably improved, and the economic benefits are improved; the reaction conditions are mild, the requirements on equipment are low, and the reaction time is short; the dispersant is relatively common, the application difficulty of a modifier is relatively low, the performance of the obtained blue-ray red is good, the heat resistance can reach 220-230 DEG C, and the transference resistance is of 4 grade.

The invention provides a data transmission and processing system and method. The system comprises a data transmission module, a cloud storage module and a data processing module. The data transmissionmodule and an Internet of things cloud platform are connected with the data processing module. The method comprises the steps that the data processing module receives sensing data transmitted by thedata transmission module; and the data processing module processes received sensing data and sends processed sensing data to the cloud storage module for storage.

The invention discloses a loop-mediated isothermal amplification reagent capable of being transported at a normal temperature as well as a preparation method and application of the reagent. The reagent comprises Bst DNA Polymerase, dNTP, a primer mixture, an indicator, a protective agent and an aerosol pollution preventive. The preparation method comprises the following steps: mixing the previouscomponents, and performing freeze drying at a temperature of 70-80 DEG C below zero for 8-16 hours, thereby obtaining the loop-mediated isothermal amplification reagent. A loop-mediated isothermal amplification reagent used for nucleic acid test is prepared in the invention, can be transported and preserved at the normal temperature, and is convenient to transport and excellent in stability; meanwhile, the problem that popularization of a LAMP (Loop-mediated Isothermal Amplification) technology is limited by aerosol pollution is solved, and the application and popularization difficulty of theLAMP technology is greatly reduced. The activity of the Bst DNA Polymerase in the reagent is 150%, the reagent can be preserved at the normal temperature of one year or longer, only a buffer solutionneeds to be added during use, the operation is simple, the activity of DNA polymerase is high, the detection sensitivity is loss-free, the interference of the protective agent is low, and the cost islow.

The invention discloses a mark point multi-angle scanning method, system and device. The method comprises the steps: obtaining the mark point data of a scanned mark point at different visual angles, carrying out the reconstruction of the mark point data, determining a mark point plane according to the mark point reconstruction data obtained through reconstruction, and dividing the mark point planeinto at least two angle regions; in the continuous scanning process at different visual angles, projecting the center of the scanner instrument scanned each time to a marking point plane, and calculating the number of times of falling into each angle area; counting the number of times of falling into each angle area in real time, and completing scanning when the number of times meets a preset threshold value of a corresponding angle; after scanning is completed, data structure conversion is conducted on the mark point reconstruction data, global optimization is conducted on the converted markpoint reconstruction data through a bundle adjustment method, and an obtained global optimal solution serves as a scanning result to be output. According to the invention, the splicing precision of the overall mark points can be improved, so that laser scanning can be better applied to the field of industrial measurement.