33results about How to "Easy and flexible implementation" patented technology

The invention discloses a low-altitude autonomous navigation system for a rotary-wing unmanned plane. The low-altitude autonomous navigation system is composed of a data acquisition device, a data preprocessing module, a data fusion module, a guidance control loop module and an attitude control loop module. The data preprocessing module is used for carrying out sampling filtering and error compensation on current location data information collected by the data acquisition device; the data fusion module is used for carrying out fusion and updating and obtaining a current position and speed of the rotary-wing unmanned plane; the guidance control loop module is used for calculating an expected attitude angle and an expected height value; and the attitude control loop module is used for generating a controlled quantity. According to the technical scheme, a problem of poor attitude estimation precision of the conventional navigation system can be solved; and requirements of high-precision heading attitude calculation and position and speed fusion of the rotary-wing unmanned plane can be met. High-precision filtering of the system is realized. On the basis of the analysis and calculation of the autonomous navigation system, the flight route and height can be corrected and the flight attitude can be adjusted autonomously; and the autonomous flight of the unmanned plane can be realized.

The invention provides a MapReduce task scheduling algorithm capable of working in an isomorphic cluster environment and a heterogeneous cluster environment at the same time and belongs to the technical field of computers. According to the scheduling algorithm, the processing performance of each computational node in a cluster can be comprehensively considered, computational nodes and computational tasks are abstracted into a bipartite graph, and through proper expansion of the bipartite graph and combination with a KM weighted optimal matching algorithm, a final overall task scheduling scheme is formed. Experiment data show that the localization degree of data in the Map stage can be increased to almost 100% and overall execution time of MapReduce operation can be optimally reduced by 67.1%.

The present invention relates to a method for locating single-phase ground fault of a low current grounding system power distribution network, including determining a total length L[total] and a total impedance Z[total] between two lines of M and N, and injecting signals when occurring a fault, when a P point between the M and N positions occurring a single-phase ground fault, systems of the two positions inject signals at the M and N position, and measures the amplitude of a return current signal as well as a phase difference between the return current signal and the injection voltage signal, after a line selection device has selected the fault phase; calculating a loop total impedance Z[M] grounded through the P point from the M and N ends, the modulo of the Z[N], and a phase angle Phi[M] of the Z[M] and the Z[N], according to |Z| = |U| / |I|, the measured injection voltage, the amplitude of the return current signal and the phase difference, a distance from the fault point P to the M position is further calculated through the following formula. By the method of the invention, it is easy to detect when the signal amplitude is strong, the attrition in the power distribution network is low, the algorithm is high, and the accuracy is high.

The invention relates to a method for recycling ultra pure water for electronics and belongs to a technique for water treatment. The method comprises the following: a step of removal of suspended impurities with an ultrafiltration system and aerobic degradation with hydrogen peroxide, in which wastewater subjected to ultrafiltration is added with 200 to 500 ppm of hydrogen peroxide; a step of ultraviolet irradiation, in which wastewater added with the hydrogen peroxide are passed through a reactor irradiated by ultraviolet rays with a wave length ranging from 185 to 254nm and a irradiation dose of 50 to 500J / m<2> and kept in a water tank for 20 to 60 minutes; a step of reverse osmosis, in which wastewater subjected to full aerobic degradation treatment is pumped to reverse osmosis membrane block or a nanofiltration device to be filtrated; and a step of mixed bed treatment, in which water subjected to nanofilitration and reverse osmosis treatment is guided to a mixed bed to remove charged ions and other impurities in water. Compared with the prior method for removing TOC through oxidation of ozone, the method is simple and safe in process and makes the treated washing water reused as pure water for high-end electronic products.

The invention discloses a supervision and tracking method based on git hooks and a defect management tool. The supervision and tracking method is characterized by comprising steps as follows: (1) codes are submitted to an engineering branch on git through a git client; (2) when a git server receives a push request of the branch code, a pre-receive script of the git hooks server is called; (3) whether the codes are allowed to be submitted in the ID state is judged according to specific ID information acquired by the pre-receive script from the defect management tool; (4) when the judgement result of the step (3) is yes, submission succeeds, otherwise, submission fails. The method has simple steps, is convenient to operate, can standardize the code submission procedure and facilitate problem tracking and is suitable for popularization and use.

The invention discloses a high-precision turning milling grinding machining center. A working head base is mounted on a working table, a first direct drive motor and a three-jaw chuck are mounted on the working head base, and can be used for turning machining and grinding machining of a workpiece, in the machining process, the three-jaw chuck drives the workpiece to rotate, at the moment, a cutter on an electric spindle is locked and fixed, and the working table can do front-and-back action movement to achieve relative movement so as to achieve turning or grinding machining. After the working head base is detached from the working table, the working table can be used for fixing the workpiece, and at the moment, the electric spindle drives the cutter to rotate so as to achieve milling machining on the workpiece. Different machining schemes are adopted in different workpieces, and implementation operation is convenient and flexible.

The embodiments of the application provide a head-mounted display device adjustment method and a head-mounted display device. The adjustment method includes the following steps: identifying the current head action of a user wearing a head-mounted display device according to the attitude data of the head-mounted display device; determining whether the current head action is a focal length adjustment indication action according to the corresponding relationship between head actions and action categories; and if the current head action is a focal length adjustment indication action, making an electromagnetic actuator in the head-mounted display device generate a magnetic field signal and drive a lens component and / or a display screen component in the head-mounted display device to move underthe action of the magnetic field signal. In the application, the electromagnetic actuator is combined with the head action of the user, which helps to improve the efficiency of focal length adjustment.

The invention relates to a preparation method of a solid photosynthetic bacterium. The preparation method comprises the specific following steps: firstly amplifying the photosynthetic bacterium selected as a vector, absorbing the strain with a super absorbent resin selected as a solidifying agent and solidifying together to obtain the solid photosynthetic bacterium strain. Through the implementation of the preparation method disclosed by the invention, the prepared solid photosynthetic bacterium strain is not easily infected with heterogeneous bacteria, is stable, has good quality and can be widely in fields such as farming, aquaculture, food processing and environmental protection. The storage period and quality guarantee period of the prepared solid photosynthetic bacterium product are greatly prolonged. Meanwhile, the prepared solid photosynthetic bacterium is very convenient to transport and circulate. During the implementation of the preparation method, super absorbent resin with relatively high water absorption capacity is applied as the solidifying agent, the consumption of the super absorbent resin is very less and thus the produced product is low in production cost, the application effect is good and the preparation method is worthy of being widely promoted.

The invention relates to the field of microbial preparations, and in particular relates to a method for preparing solid EM (effective microorganisms). Specifically, zeolite powder is used as a drying sorbent, and high concentration liquid EM with a viable count of no less than 5*100 / ml is used as a carrier. The zeolite powder is employed to adsorb the liquid EM, and then drying is conducted so as to obtain a powdery solid EM product. The solid EM product prepared by the invention is not susceptible to infectious microbes, contains stable and high-quality bacteria, and can be widely used in planting industry, aquaculture, food processing, environmental protection and other fields. Besides, the storage and shelf life of the product is greatly extended, and the transportation and circulation process is very convenient, so that the method is worth popularizing.

The invention discloses a method for identifying and classifying wood defects based on multiple features. The method comprises the following steps of firstly, selecting experiment sample data; then, collecting stress wave propagation speed data; collecting resistance value; performing data processing on the stress wave propagation speed data and the resistance value; separating a plurality of groups of sample data of each wood defect type into training group data and classifying group data; finally, adopting a support vector machine method to train and classify; using a stress wave wood non-destructive detection instrument to collect the feature of the stress wave propagation speed data, and using a micro-drill resistance instrument to collect the feature of the resistance value, so as to well represent the global feature of the cross section of the wood; identifying and classifying the interior defect of the wood according to the features of the two types of wood data and the support vector machine method, so as to accurately classify the type of the wood defect. The method has the advantages that the reliability is higher, the implementing is convenient and flexible, and the cost of the instruments is reduced.

The invention provides a method for judging stability of an MMC digital-analog hybrid simulation power interface. The method comprises the steps of establishing an MMC digital-analog hybrid simulation equivalent model; performing decoupling operation on the MMC digital-analog hybrid simulation power interface; determining an impedance matching condition which meets the stability of the MMC digital-analog hybrid simulation power interface; and simulating the MMC digital-analog hybrid simulation power interface to verify the validity and reasonability of the impedance matching condition. According to the method for judging stability of the MMC digital-analog hybrid simulation power interface, the problem of the impedance matching condition meeting the stability of the power interface during the MMC digital-analog hybrid simulation realized based on a voltage type ideal transformer algorithm is solved, technical guidance for the scheme design of an MMC digital-analog hybrid simulation system is provided, and the work efficiency is greatly improved. As the MMC digital-analog hybrid simulation is planned reasonably by utilizing the method for judging the stability of the MMC digital-analog hybrid simulation power interface, the stability and precision of the power interface can be improved effectively.

The invention provides a method for realizing MapReduce data localization in operations and belongs to the technical field of computers. The method is characterized in that the task data localization degree of operations can be further improved by changing a task scheduling algorithm in the operations. For certain assigned operation, when a calculation task is scheduled to a calculation node, distribution of different tasks is carried out by comprehensively considering the number of the remaining localized data blocks about the operation of the calculation node and the estimated number of tasks needing to be processed in the future about the calculation node obtained by a series of processing calculation. The method provided by the invention has the advantages that the calculation performances of all the calculation nodes do not need to be measured in advance, the implementation is flexible and convenient without influence on the executing efficiency of local operation, and the network bandwidth occupation of the Map stage can be reduced to the greatest extent, so that the degree of parallelism of clustering operations is improved, and simultaneously the whole execution time of all the operations is also obviously shortened.

Aiming at solving the problem that the current intelligent network system is not convenient for the client to customize the different functions realized by different services distributed on different intelligent network service platforms SCPs, the present invention provides a method of realizing the personal integrated service, including the steps as follows: step one, dialing the called number of the personal integrated service; step two, in case the called number is the IVR integrate access number and the IVR access number of the sub-service exists, the IVR access number of the sub-service is the destination number; step three, in case the called number is not the IVR integrate access number and the second triggering access number prefix, the access number prefix + called number is the destination number; step four, triggering the sub-service according to the destination number.

The invention discloses a printed facing artificial stone slab convenient to install. The printed facing artificial stone slab convenient to install comprises an artificial stone base material slab, nuts are embedded in the artificial stone base material slab, ports of the nuts are located on the back of the artificial stone base material slab, the surface of the artificial stone base material slab is coated with a bottom coating, a facing layer is printed on the bottom coating, and the facing layer is coated with a protective layer. According to the printed facing artificial stone slab convenient to install, by adopting printing technologies such as roller painting, spraying, silk screen printing, printing and transfer printing, various facing decoration effects can be directly and vividly shown on the surfaces of the cement-based and resin-based artificial stone slabs. The printed facing firmly attached to the surface of the artificial stone slab can effectively solve various potential safety hazards such as layering and falling which are inevitably caused after chemical glue is aged and degraded due to the fact that the facing slabs are pasted with the chemical glue or facing materials such as films, leather and paper are adhered with the chemical glue on the surface of the base material slab in the prior art.

The invention discloses a door body structure of a cleaning machine. The door body structure comprises a door body for sealing a cleaning cavity of the cleaning machine, and further comprises a baffleplate mounted on the door body, wherein a vent hole is formed in the door body in a penetrating manner, and the baffle plate shields the vent hole in the vertical direction and enables the vent holeto be communicated with the cleaning cavity of the cleaning machine. The door body structure of the cleaning machine provided by the invention is provided with the vent hole and the baffle plate for shielding the vent hole in the vertical direction, so that the vent hole cannot be directly opposite to the cleaning cavity in the vertical direction, and then an exhaust passage capable of dischargingsteam and blocking water flow from being sprayed out in a linear form is formed; by means of the above arrangement, it can be guaranteed that a space for relatively preventing cleaning water flow from being sprayed out is formed in the cleaning cavity, steam discharging can be accelerated, and therefore the drying time of cleaned objects is shortened, and the dish washing process is accelerated.

The invention provides a method for judging stability of an MMC digital-analog hybrid simulation power interface. The method comprises the steps of establishing an MMC digital-analog hybrid simulation equivalent model; performing decoupling operation on the MMC digital-analog hybrid simulation power interface; determining an impedance matching condition which meets the stability of the MMC digital-analog hybrid simulation power interface; and simulating the MMC digital-analog hybrid simulation power interface to verify the validity and reasonability of the impedance matching condition. According to the method for judging stability of the MMC digital-analog hybrid simulation power interface, the problem of the impedance matching condition meeting the stability of the power interface during the MMC digital-analog hybrid simulation realized based on a voltage type ideal transformer algorithm is solved, technical guidance for the scheme design of an MMC digital-analog hybrid simulation system is provided, and the work efficiency is greatly improved. As the MMC digital-analog hybrid simulation is planned reasonably by utilizing the method for judging the stability of the MMC digital-analog hybrid simulation power interface, the stability and precision of the power interface can be improved effectively.

Disclosed is a solid probiotic. A preparing method of the solid probiotic includes using an EM beneficial bacterium as a carrier, using a super absorbent polymer as a solidifying agent, amplifying the EM beneficial bacterium, using the super absorbent polymer to absorb and solidify a bacterium into a solid biological bacterium. The solid EM bacterium prepared by the preparing method is difficult to infect by sundry fungi, is good and stable in bacterial quality and is widely applicable to the fields such as planting industry, breeding industry, food processing and environmental protection. The prepared solid EM product has a shelf life greatly prolonged. Meanwhile, the prepared solid EM is convenient to transport and circulate. With the use of the super absorbent polymer of high absorption rate as the solidifying agent, dosage is very low, and products are low in cost but good in application effect and worthy of wide popularization.

The invention relates to a thick-wall high-strength steel double-sided submerged-arc welding method for dynamic load occasions, which comprises the following steps: the same high-strength steel plates are combined and butted, the wall thickness T of each steel plate is greater than or equal to 13mm, and the yield strength of each steel plate is less than or equal to 690MPa; an X-shaped groove is adopted, the angle of an upper groove is 50-100 degrees, the angle of a lower groove is 60-110 degrees, the depth ratio of the upper groove to the lower groove is 1.1-1.5, and the assembly gap is 0-0.5 mm; the height R of the truncated edge is 4-10mm and is less than or equal to T / 3; carrying out one-time single-pass double-sided submerged arc welding at a ship-shaped position by adopting flat welding; the welding heat input, the groove angle and the groove depth meet certain conditions, the welding heat input, the welding current, the welding voltage, the welding speed and the welding wire diameter meet certain conditions, and the welding current is related to the welding wire diameter and the truncated edge height. By means of the method, the one-time single-pass double-face submerged-arc welding forming weld joint which is good in overall quality, uniform in weld pass spreading and smooth in weld toe transition can be obtained, the fatigue performance of a welded joint can be improved, and the service life can be prolonged.

The embodiments of the application provide a head-mounted display device adjustment method and a head-mounted display device. The adjustment method includes the following steps: identifying the current head action of a user wearing a head-mounted display device according to the attitude data of the head-mounted display device; determining whether the current head action is a focal length adjustment indication action according to the corresponding relationship between head actions and action categories; and if the current head action is a focal length adjustment indication action, making an electromagnetic actuator in the head-mounted display device generate a magnetic field signal and drive a lens component and / or a display screen component in the head-mounted display device to move underthe action of the magnetic field signal. In the application, the electromagnetic actuator is combined with the head action of the user, which helps to improve the efficiency of focal length adjustment.

The invention discloses a method for online generating a tobacco leaf curing process curve for a bulk curing barn. The method comprises the following steps: firstly, setting a curing process curve in the initial stage, and starting the curing process curve parameter prediction in the next stage 5 hours before the stage is finished; then, collecting curing barn gas signals once every one hour, and extracting the odor characteristics, inputting the characteristics to a trained RBF neural network, and predicting and outputting a curing process curve parameter in the next stage to form the curing process curve in the next stage; and repeating the above steps until curing is completed so as to realize online generation of the tobacco leaf curing process curve for a bulk curing barn. According to the method, the process for artificially determining the tobacco leaf curing state is converted into intelligent identification by a machine, the curing process curve can be generated online in real time, and the curing process is accordingly conducted, the system does not need to preset a curing process curve, and the whole process does not have artificial participation, so that artificial cost for the curing system is reduced, and artificial subjective factor interference can be avoided.

The invention discloses an evaluation system for pressure regulation and leakage reduction of urban water supply pipe networks. The system of the present invention comprises a monitoring module of a lower computer, a wireless communication module and a data receiving and evaluating module of an upper computer. The monitoring module of the lower computer is signal-connected with the data receiving and evaluating module of the upper computer through the wireless communication module. The lower computer adopts the operation scheme of alternating pressure regulation, and the evaluation of the upper computer comprehensively considers the characteristics of the average value, median value, and cumulative probability distribution of flow and pressure. Compared with the prior art, the present invention has the advantages of unattended automatic operation, convenient remote setting of pressure control schemes, elimination of interference from work and rest days, weather, etc. on users' water consumption, and improved comprehensiveness and scientificity of effect analysis.

In order to solve the problem that customers in the existing intelligent network system are inconvenient to customize the different functions realized by different services distributed on different intelligent network service platforms SCP, the present invention provides a method for realizing personal integrated services, which includes the following steps: Step 1. Dial the called number of the personal integrated service; Step 2. If the called number is an IVR unified access code, and there is an IVR access code for the sub-service, then use the IVR access code for the sub-service as the destination number; Step 3. If the called number is not an IVR unified access code, and there is a secondary trigger access code prefix, then use the access code prefix + called number as the destination number; step 4, trigger the sub-service according to the destination number.

The invention discloses a wood defect recognition and classification method based on multi-features. Firstly, the experimental sample data is selected; then the stress wave propagation velocity data is collected; then the resistance value is collected; and then the stress wave propagation velocity data and the resistance value are data processed; Then, several groups of sample data of each type of wood defects are divided into training group data and classification group data, and finally the support vector machine method is used for training and classification. Using the stress wave wood non-destructive tester to collect the data characteristics of the stress wave propagation velocity and the micro-drilling resistance meter to collect the characteristics of the resistance value can better characterize the global characteristics of the wood cross section. Using these two wood data features and the support vector machine method Identifying and classifying the defects inside the wood can accurately classify the types of wood defects, and has high reliability, and the method is convenient and flexible to implement, and can save instrument costs.

The present invention relates to a method for locating single-phase ground fault of a low current grounding system power distribution network, including determining a total length L[total] and a total impedance Z[total] between two lines of M and N, and injecting signals when occurring a fault, when a P point between the M and N positions occurring a single-phase ground fault, systems of the two positions inject signals at the M and N position, and measures the amplitude of a return current signal as well as a phase difference between the return current signal and the injection voltage signal, after a line selection device has selected the fault phase; calculating a loop total impedance Z[M] grounded through the P point from the M and N ends, the modulo of the Z[N], and a phase angle Phi[M] of the Z[M] and the Z[N], according to |Z| = |U| / |I|, the measured injection voltage, the amplitude of the return current signal and the phase difference, a distance from the fault point P to the M position is further calculated through the following formula. By the method of the invention, it is easy to detect when the signal amplitude is strong, the attrition in the power distribution network is low, the algorithm is high, and the accuracy is high.

The invention relates to a chip package structure and a packaging method thereof. The structure comprises at least one chip, wherein each chip is provided with a plurality of first contact pads and second contact pads, a lead frame, a group of first bonding wires and a group of second bonding wires, wherein the lead frame comprises a plurality of pins for external connection; the chip is arrangedon the lead frame; the group of the first bonding wires are used for directly and electrically connecting the first contact pads to the lead frame; and the group of the second bonding wires are used for electrically connecting the second contact pads to the plurality of pins of the lead frame. The structure and the method can conveniently realize the chip with low consumption and easy heat dissipation, reduce packaging size of the chip, and contribute to the function expansion of the chip.

The invention discloses a switch capable of being triggered in multiple forms. The switch capable of being triggered in multiple forms comprises a conductor part, a triggering part and a shell part, wherein the conductor part arranged on the shell part is triggered in a contact mode by the triggering part through lever type force exerting triggering of a rotary shaft supporting structure, and the triggering part can achieve wire drawing type action, side moving type action and pressing and combining type action. The switch capable of being triggered in multiple forms has the advantages of being reasonable, simple, reliable and durable, capable of being triggered in multiple forms conveniently and flexibly, effectively suitable for various occasions, high in universality and capable of being widely used.

The invention proposes a MapReduce task scheduling algorithm that can work simultaneously in homogeneous and heterogeneous cluster environments, belonging to the field of computer technology. The scheduling algorithm can comprehensively consider the processing performance of each computing node in the cluster, abstract the computing nodes and computing tasks into a bipartite graph, and form the final global task scheduling scheme by appropriately expanding the bipartite graph and combining the KM weighted optimal matching algorithm. Experimental data show that the scheduling algorithm can improve the data localization degree in the Map stage to nearly 100%, and the overall execution time of the MapReduce job can be reduced by 67.1%.

The invention discloses a steam recovery heat exchange unit in the aerated concrete industry, which includes a storage box, a heat exchange tube and a collection box. The two sides of the inner wall of the storage box near the top are fixedly connected with heaters by bolts, and the two sides of the outer periphery of the storage box are The middle part near the bottom is fixedly connected with the delivery pipe by bolts and flanges; when the controller activates the electromagnetic valve on the top of the heat exchange tube, the present invention can effectively accelerate the steam rising, so as to transport the steam to the outside through the collection box and the transmission pipe for the user. The transmission power when recovering steam can effectively reduce the guiding energy consumption during steam transmission, so that the user can actually use the steam block to recover steam for secondary use, and the transmission power can be more sufficient. At the same time, by adjusting the position of the heat exchange box It can effectively provide the required driving force for the user when transporting the steam block material, so that it is convenient for the user to be more portable and flexible when actually using the steam block to implement construction, and thus effectively improves the operation efficiency of the steam block construction.