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 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 present invention discloses a dynamic assessment method for an ability of a computation resource in a cloud-computing platform. The method is designed in accordance with large-scale parallel of most loads in cloud computing, and usually contains characteristics of multiple tasks with the same or similar execution logic. Dynamic assessment is performed on an ability of a computing resource such as a CPU, a memory, a disk bandwidth, a network bandwidth and the like by analyzing information that the multiple tasks with the same or similar execution logic are executed on different computing resources and information when a node runs. The method disclosed by the present invention is extremely low in running expense on the condition that timeliness and precision of an assessment value are ensured. A result generated from the dynamic assessment by the method disclosed by the present invention can be used for the aspects of resource management, job scheduling, load balancing and platform error tolerance and the like of the cloud-computing platform, so as to improve utilization efficiency of the computing resources in the platform and finally enhance the whole throughput rate of the cloud-computing platform.

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 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 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 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.

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.