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104results about How to "Functional division is clear" patented technology

Multi-unmanned aerial vehicle collaborative target tracking ground station

InactiveCN108958297AReal-time display of flight trajectoryShow location in real timeTarget-seeking controlTarget captureUncrewed vehicle
The invention discloses a multi-unmanned aerial vehicle collaborative target tracking ground station which comprises a wireless communication module, a flight control module, a flight monitoring module, an air route planning module, a log storage and playback module and a tracking target monitoring module, the wireless communication module is used for carrying out data transmission and protocol analysis with multi-unmanned aerial vehicles, the flight control module is used for reading and writing all unmanned aerial vehicle flight parameters and control parameters; the flight monitoring moduleis used for dynamically displaying the flight attitude and motion state of the unmanned aerial vehicles, and the air route planning module is used for planning a preset air route, a geofence and a Home point position for each unmanned aerial vehicle, the log storage and playback module is used for carrying out real-time storage and log playback on all the flight data, the tracking target monitoring module is used for acquiring the position of a target captured by each unmanned aerial vehicle in real time. The ground station can guarantee the real-time tracking of unmanned aerial vehicle tracking dynamics during multi-UAV target tracking, and the target tracking task is ensured.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Public platform satellite chemical propulsion subsystem modular layout method

Disclosed is a public platform satellite chemical propulsion subsystem modular layout method. To solve the problems that welding of valve bodies is completed on a satellite, once the valve bodies fail, it is necessary to remove a large amount of equipment on the satellite before welding again, and welding even cannot be performed in the later stage of manufacturing of the satellite; combination valve bodies of different functions are allocated together, when a failure is tested, the failure position cannot be accurately and timely judged and thus difficulty in troubleshooting is caused, the invention provides the public platform satellite chemical propulsion subsystem modular arrangement method. According to the invention, the method, in which the valve body combination is divided and a valve body module is determined according to the propulsion principle, is applicable to all satellite propulsion system layouts. By adopting the method in which the valve body module method is composedof the valve bodies, the valve bodies occupy a small space, the connection is simple, the module is welded not on the satellite, the entire module is installed on the satellite, and thus operation isconvenient. A gas pipeline module is positioned at a north partition of a propulsion cabin, an oxygen pipeline module and a combustion pipeline module are positioned at a middle partition of the propulsion cabin, the functions of the modules are clearly divided, and testing and troubleshooting are facilitated.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY

Access authentication and key agreement protocol and method of special network for space-aeronautics-vehicle-ground tracks

The invention discloses an access authentication and key agreement protocol and a method of a special network for space-aeronautics-vehicle-ground tracks. An authentication system consists of a core network configuration authentication subsystem and a user access authentication subsystem, which completes authentication and key agreement between an airship and a security and operation guarantee center and authentication and key agreement between a user and the airship respectively. In view of the structure and communication characteristics of the special network for space-aeronautics-vehicle-ground tracks, a core network configuration subsystem is constructed. Authentication and key agreement between the airship and the security and operation guarantee center is completed with a public key password to get symmetric keys. Symmetric keys used between the user and the airship are mutually authenticated on the basis of an LTE protocol to get a session key. The problem on secure communication and key updating is solved. There is no need for an authentication center to participate in user access authentication and key agreement. The use of symmetric keys ensures light workload and high efficiency. The method is used in access authentication of airship, high-speed rail and trackside equipment users and key agreement, and ensures secure transmission of a wireless communication link from the user to the airship and to the security and operation guarantee center.
Owner:XIDIAN UNIV

Combined bed, wall cabinet and desk assembly for student hostel

The invention discloses a combined bed, wall cabinet and desk assembly for a student hostel, which mainly comprises a wall cabinet (1), a combined bed, a bookcase (3) and a desk (5), wherein the wall cabinet (1) is divided into left, middle and right cabinets and is positioned above the combined bed; a bed board (12) is paved above a bed frame (11) of the combined bed; an anti-falling guardrail (13) is arranged outside a bed edge of the bed frame (11); the bed frame (11) is also provided with a bedside clapboard (2); a drawer (4) with a lock is arranged on the left below the bed board (12); a box cabinet (6) is arranged below the drawer (4); a bookshelf (9) is arranged in the middle below the bed board (12) from top to bottom; the bookshelf (9) is divided into a shoe cabinet (8) and a pedal (7) from top to bottom; the pedal (7) is drawable; a garderobe (10) is arranged on the right below the bed board (12); the garderobe (10) is provided with two doors; the bookcase (3) is divided into four layers from top to bottom by clapboards; and the desk (5) with the drawer with the lock is arranged below the bookcase (3) and above one side of the bedside clapboard (2). The bed board of the combined bed is at a short distance from the ground and is also provided with the drawable pedal, so that a user can conveniently go to bed and get out of the bed and the sleeping safety is guaranteed; the combined bed, wall cabinet and desk assembly has a reasonable space layout, a compact structure and a function of providing convenience for sleeping, studying, object storing and the like; and a study zone and a sleeping rest zone are effectively separated, so that the dynamic-static separation is realized.
Owner:HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY +1

Oil transportation pipeline leakage flow estimating device and method based on KPCA-RBF curve fitting

The invention relates to an oil transportation pipeline leakage flow estimating device and method based on KPCA-RBF curve fitting, and belongs to the technical field of oil transportation pipeline detection. According to the estimating method, the dimensionality of data, in which non-linear relationships exist, of an oil transportation pipeline is reduced by using kernel principal component analysis (KPCA), and therefore the number of principal component variables is greatly reduced; the leakage flow is estimated in the mode of KPCA-RBF neural network curve fitting, solution of a high-order equation set is avoided, and accuracy and precision of leakage flow estimation are improved; in addition, information affecting the leakage flow serves as system input, so that the estimating method effectively adapts to the complex and changeful environment, and the practicability of the leakage flow estimating method is improved. An FPGA and DSP architecture is adopted, and compared with a single FPGA system or a single DSP system, an FPGA and DSP system has higher calculation processing capacity; the FPGA and DSP framework simultaneously has the advantages of good real-time performance of an FPGA and low development difficulty of a DSP, shortens a development cycle, reduces technical risks, and is more suitable for real-time data processing, system functions are partitioned clearly, and the overall performance indexes of the system are greatly increased.
Owner:NORTHEASTERN UNIV

Integrated device and method for efficient magnesium ammonium phosphate crystallization and solid-liquid separation

Belonging to the technical field of sewage recycling treatment, the invention relates to an integrated device and method for efficient magnesium ammonium phosphate crystallization and solid-liquid separation. A mixed reaction crystallization zone is connected to water intake pumps; a solid-liquid separation zone is disposed between an inner cylinder and an outer cylinder; a buffer zone is under the mixed reaction crystallization zone; an MAP sludge zone is disposed in a cone at the bottom of a reactor, and the bottom is connected to a large aperture valve; a water outlet zone is arranged at the top of the reactor, and employs an overflow water discharge way. The reactor operation includes crystallization reaction and solid-liquid separation processes. The reactor device adopts rapid mechanical stirring way to accelerate crystallization reaction, thus improving the reactor treatment capacity; at the same time, a baffled continuous flow treatment way with the same inflow and outlet waterdirection is employed to prolong the flow path of materials in the reactor, so that the crystallization reaction and solid-liquid separation process can be more complete; by setting an inclined platein the solid-liquid separation zone, efficient solid-liquid separation can be achieved, and MAP loss and secondary pollution can be avoided during water discharge.
Owner:BEIJING UNIV OF TECH

Contact state and humidity adjustable cable water-blocking buffer layer structure simulation test system and method

The invention discloses a contact state and humidity adjustable cable water-blocking buffer layer structure simulation test system and method. The system comprises a bottomless test box body with a ventilation opening in the top surface, and the interior of the bottomless test box body is provided with partitions and is divided into a monitoring area, a test area and a control area; a camera is placed in the monitoring area, an ablation platform is placed in the middle of the test area, humidifiers are placed at four corners in the test area respectively, electric fans are placed among the humidifiers, and a power bank is placed close to the partition; a PLC is placed in the control area, and a data line of the PLC penetrates through the side wall of the box body and is connected to an external computer; and data lines of the humidifiers and the electric fans penetrate through the partitions and are connected to the PLC. According to the system and the method, the structural characteristics of a corrugated aluminum sheath and a water-blocking buffer layer in the high-voltage cable are effectively restored, and the real working state of the water-blocking buffer layer under the actual cable operation condition is better simulated by adjusting the external voltage and current, the electrode position, the pressure and the environment humidity, so that the fundamental reason and the damage mechanism of ablation of the water-blocking buffer layer are favorably explored and analyzed.
Owner:CHINA ELECTRIC POWER RES INST +2

Vehicle starting storage battery

The present invention discloses a vehicle starting storage battery. The vehicle starting storage battery comprises: a first storage battery having an anode connected with a first post and a cathode connected with a common port; a second storage battery having an anode connected with a second post and a cathode connected with the common port; a diode having an anode connected with the second post and a cathode connected with the first post; a first switch connected between the anode of the first storage battery and the first post / connected between the cathode of the storage battery and the common port; and a controller connected with the anode of the first storage battery and the first switch, wherein the controller controls disconnection of the first switch when it is detected that a voltage value of the first storage battery is smaller than a reserved voltage threshold in a continuous time threshold, and the first storage battery reserves standby electric quantity, and the controllercontrols connection of the switch when standby electric quantity signals are detected, and the first storage battery supplies the standby electric quantity. The vehicle starting storage battery can effectively prolong the service life of the starting power supply, can reduce the cost of the vehicle starting storage battery and has high reliability.
Owner:周伟中

Main board of static satellite simulator

The utility model relates to a main board of a static satellite simulator, which comprises a substrate circuit board (11), a CPU (central processing unit) circuit board (12) and process circuit daughter boards (13); the substrate circuit board (11) comprises a main board extension interface module (111), a power supply and power supply management module (114), and a static satellite signal analog circuit module (118). the CPU (central processing unit) circuit board (12) comprises an FPGA (field programmable gate array) module (121), an ARM (advanced RISC machine) module (122) and a confidential calculation micro-control unit (MCU) module (123); the process circuit daughter boards (13) are adopted as signal process circuit daughter boards and comprise an AD (analog to digital) board, a DA (digital to analog) board and a code value signal process board; as a structure that the functional division is accurate and the daughter board is overlapped on the main board is adopted by the main board of the simulator, the main board of the static satellite simulator has a compact structure, and is convenient to maintain and debug; the CPU board is separated from the main board of the simulator; an AD / DA (analog to digital / digital to analog) signal process module is separated from the main board of the simulator; and an interface is only preserved on the main board, and is convenient for upgrading and updating the CPU board.
Owner:BEIJING AEROSPACE MEASUREMENT & CONTROL TECH

Remote detection and evaluation system for tire crane

The invention discloses a remote detection and evaluation system for a tire crane. The system comprises an equipment layer, a sensor layer, a distributed data collection layer, a data collection layer, a data transmission layer, a data processing layer, a data service layer and a data increment layer, wherein the equipment layer, the sensor layer, the distributed data collection layer and the datacollection layer are located on tire crane equipment and complete collection work of mechanism state and safety data; the data transmission layer is located between each tire crane and a wharf centralized control center; the data processing layer is located in the wharf centralized control center and completes some local remote detection and evaluation work of a wharf; the data service layer is located on data cloud and can utilize locally deployed enterprise private cloud or public rental cloud; the data increment layer is located in a data center of an enterprise, the enterprise acquires monitoring data of the tire crane equipment for a long time, and detection and evaluation for the tire crane equipment are enhanced by the aid of enterprise resources. According to the system, the modules have independent functions, the functions are clear, and reliability of the system is enhanced and guaranteed.
Owner:SHANGHAI ZHENHUA HEAVY IND

Security management and information feedback system based on GDOI protocol

ActiveCN105939353AFunctional division is clearSuperior business processing performanceData switching networksTraffic volumeTraffic capacity
The invention provides a large-scale network security management system based on a GDOI protocol. The security management system is used for managing and controlling information acquisition, classification and management of properties and encryption equipment and key management equipment associated with the properties, managing configuration information of the key management equipment and the encryption equipment, configuring group policies of the key management equipment and the encryption equipment, and checking state information of the key management equipment and the encryption equipment. According to the large-scale network security management system disclosed by the invention, security protection of the properties and the encryption equipment and the key management equipment associated with the properties is carried out through a property management module and a configuration management module; therefore, the properties and the encryption equipment thereof can be maintained, monitored and checked at any time; if there is a problem, a remedial measure can be taken at first time; a group encryption and deployment model of a key management server and a group member (GM) and a whole network consultation mechanism (Group SA) are provided; the flow among nodes is encrypted and decrypted by using the Group SA; and security communication is provided for the IP of any node.
Owner:北京数盾信息科技有限公司

Prefabricated offshore booster station upper module and construction method thereof

PendingCN111490485AReduce volumeThe superstructure and functions are clearly dividedTransformer housesWaterborne vesselsTransformerElectric cables
The invention discloses a prefabricated offshore booster station upper module and a construction method thereof. The upper module comprises a first-layer deck and a second-layer deck which are arranged on a jacket; a 35KV power distribution chamber and a screen body room are arranged on a left side of the second-layer deck, a main transformer chamber is arranged in the middle, a GIS power distribution chamber and an auxiliary equipment chamber are arranged on the right side, a screen body chamber is located above the 35KV power distribution chamber and connected with the 35KV power distribution chamber through a T-shaped hook, and the auxiliary equipment chamber is located above the GIS power distribution chamber and connected with the GIS power distribution chamber through a T-shaped hook; the main transformer chamber and the 35KV power distribution chamber are connected through a 35KV cable, the main transformer chamber and the GIS power distribution chamber are connected through a 220KV cable, and the 35KV cable and the 220KV cable are both located between the first-layer deck and the second-layer deck. According to the upper module and the construction method thereof, a modularprefabricated booster station is adopted, and the upper module and the construction method thereof have the advantages of being short in construction period, less in cross operation, low in management cost, less in redundant design and safe in construction.
Owner:QINGDAO TGOOD ELECTRIC
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