7results about How to "Flexible interface" patented technology

The application provides a real-time conversion method for pixels and geographic latitude and longitude in low-altitude photogrammetry, which comprises the following three parts: unmanned aerial vehicle capability confirmation, real-time conversion service implementation deployment for pixels and geographic latitude and longitude in low-altitude photogrammetry, and GIS geographic information platform integration docking. Through real-time data collected by an unmanned aerial vehicle, combined with a computer vision algorithm and a spatial geometric transformation model, the specific pixel points in image data are associated with real geographic coordinates, so that accurate positioning and measurement of ground objects are realized. The application relates to the technical field of low-altitude photogrammetry, and through the cooperative work of real-time data collection by an unmanned aerial vehicle, real-time conversion service for pixels and geographic latitude and longitude in low-altitude photogrammetry, and a GIS geographic information platform, efficient mapping from a photographed image to a geographic coordinate is realized, and accurate and rapid technical support is provided for low-altitude photogrammetry.

The invention relates to the technical field of underwater information networks, in particular to an underwater network intelligent security control situation system and method. Comprising node management and control, security isolation, network security reconstruction and comprehensive situation and threat situation analysis, and the node management and control is used for carrying out classification and basic information management on nodes under the whole underwater network, formulating a standard protocol interface and carrying out formatting processing on accessed node equipment data; the security isolation realizes identity authentication, terminal protection, isolation filtering and monitoring early warning capabilities based on a security policy configuration technology of a network node with the characteristics of low power consumption, resource scarcity and the like in an underwater network multi-service scene; according to the network security reconstruction, under the condition that network nodes are subjected to security isolation, fault-caused isolation or physical blocking, a dynamic planning technology of a physical link and a network communication link realizes security reconstruction and interconnection and intercommunication of an underwater network; and the comprehensive situation and the threat situation are analyzed and displayed.

The invention discloses an MCU verification method and system. The method comprises the steps of monitoring an MCU bus, and generating random data related to a test case of a to-be-verified module when it is monitored that the MCU performs write operation on a register of the to-be-verified module; writing the random data into a storage module; when the MCU executes the test case, the MCU reads the random data stored in the storage module; utilizing the random data to configure a register of the to-be-verified module to generate a configuration file; and the to-be-verified module executes a corresponding function according to the configuration file to complete verification. Compared with a traditional method of setting up a master-slave verification component for each peripheral, the method simplifies the whole verification process; the random verification of all modules and memories to be verified is completed in combination with the random characteristics of the UVM and the MCU kernel, and the system verification which is directly configured and completed only by the host kernel is not needed any more, so that the random coverage rate is enhanced; the verification platform is simple in interface, flexible and easy to reuse.

The present application is a voltage-reactive control method, device and medium based on centralized optimization, which belongs to the field of power system. In view of the unreasonable problem of existing optimization methods, the present application provides a voltage-reactive multi-mode optimization control method based on centralized optimization, including: detecting and identifying the instructions issued by the upper layer optimization; setting the voltage adjustment interval, and setting the local voltage-reactive curve according to the instruction result; outputting the reactive power reference value of the inverter according to the local voltage-reactive curve; regulating the reactive power of the inverter according to the reactive power reference value of the inverter, and adjusting the grid connection point voltage until it is stable; judging whether the stable grid connection point voltage is within the voltage adjustment interval; periodically detecting the grid connection point voltage value, and judging whether the detected grid connection point voltage fluctuates greatly. The present invention improves the compatibility of the inverter with the upper layer optimization, effectively suppresses the voltage fluctuation and over-limit of the power grid, and improves the voltage support capacity of the inverter, the quality of the power grid voltage, and the reliability of the power grid operation.

A water pump cavitation monitoring and control system belongs to the technical field of water pump monitoring and control. The invention aims to solve the problem that the working efficiency of a water pump is affected due to the fact that water pump cavitation judgment is not timely in an existing water pump cavitation monitoring and control mode, especially a single-index water pump cavitation monitoring and control method. The sensor module is used for monitoring running state data of the water pump in real time and transmitting the running state data to the control module, and the running state data comprise pressure data, temperature data and vibration data; the control module is used for judging cavitation on the basis of the pressure data, the temperature data and the vibration data and controlling the action of the exhaust device according to a judgment result; the basis of cavitation judgment based on the pressure data, the temperature data and the vibration data is that vibration data abnormity is met, and temperature abnormity or pressure abnormity is met at the same time.

The invention provides a multi-degree-of-freedom wide-low-frequency vibration isolator, and belongs to the technical field of structural vibration reduction. The vibration isolator comprises a main spring, a guide supporting column, an end cover, a welding corrugated pipe, a rolling ball upper groove plate, a rolling ball, a rolling ball limiting plate, a rolling ball lower groove plate, an auxiliary spring, a screw, a gasket, silicone oil and the like. Under the action of an external load, a small hole in an oil cavity of the welded corrugated pipe shears silicone oil to generate damping force, the high damping characteristic is shown in the vertical direction, and vibration isolation in the vertical direction is achieved through the cooperation of the main spring and the elastic element corrugated pipe; meanwhile, the rolling balls roll in the rolling ball channels, friction damping force is generated in the horizontal direction, and two-freedom-degree vibration isolation in the horizontal direction is achieved. In addition, the adjustability of output damping is high, and efficient vibration isolation under the action of small-amplitude and variable-amplitude excitation can be achieved. The multi-degree-of-freedom vibration isolator has the advantages of being small in size, high in vibration isolation precision, good in vibration isolation effect, high in bearing capacity, low in manufacturing cost, long in service life, capable of achieving the multi-degree-of-freedom vibration isolation effect and the like.

The utility model relates to the technical field of agricultural mechanical equipment, in particular to a tractor stepless speed change transmission system which comprises an engine, a clutch is arranged at the output end of the engine, a first front speed increasing box is arranged at the output end of the clutch, a first hydrostatic stepless speed changer is arranged at the output end of the first front speed increasing box, and a second hydrostatic stepless speed changer is arranged at the output end of the second front speed increasing box. A gearbox assembly, a middle power output assembly and a rear power output assembly are arranged at the output end of the first hydrostatic stepless transmission. The front speed increasing box I and the hydrostatic stepless speed changer I are arranged, the front speed increasing box I achieves power speed increasing through gear meshing transmission, the structure is compact, the transmission efficiency is high, power input with the higher rotating speed can be provided for follow-up transmission parts, and the power transmission performance of the whole transmission system is optimized; the first hydrostatic stepless speed changer can flexibly adjust the angle of an internal swash plate according to operation requirements, and stepless speed change is achieved.