441results about How to "Realize plug and play" patented technology

The invention relates to a display calibration system of a LED display screen and a calibration method thereof. The system comprises a video capture controller, a data distributor, scanning control cards and LED display modules; the memory chips of the display modules save simple-point calibration data of the display modules, which is uniformly arrayed in a LED display box in the light of a row or column cascade; a plurality of LED display boxes are uniformly arrayed in the light of the row or column cascade to constitute the LED display screen; the head end scanning control cards of each row cascade or each column cascade of the LED display screen are respectively connected with a GigE communication interface circuit of the data distributor, and the data distributor is connected with the GigE communication interface circuit of the video capture controller via the GigE communication interface circuit thereof; based on the systems, the method takes the LED display modules for saving the simple-point calibration data as units, thus realizing the calibration of display screen pixel. The invention reduces the bandwidth requirements on the connection among the scanning control cards, realizes the function of plug and play of the display modules, is convenient for batch production and simple in maintenance operation, and improves the synchronicity of calibration of the display screen.

The invention discloses a micro-grid system voltage stability control method based on robust control. The control structure of an intelligent micro-grid system is composed of a system control layer, a concentrated control layer and a local control layer, and energy optimization and voltage and frequency stability control of the micro-grid system are realized through multi-layer coordination control. According to the micro-grid system voltage stability control method based on robust control, a comprehensive load module of an induction motor is established, wherein dynamic loads are connected with static loads in parallel. On the premise that the constraint conditions of system performance and robust stability are met, a micro-grid voltage stability robust controller is designed by the adoption of a method of solving the problem of mixed sensitivity so as to improve the micro-grid voltage stability. The micro-grid system voltage stability control method based on robust control can be adapted to wide-range change of load parameters, has high robustness for the situations that due to the factors such as changes of running conditions, influences of external environment and frequency switching of the loads, perturbation is generated in model parameters of a micro-grid and uncertainty exists in the topologic part and the unmolded part and can better restrain parameter drift and noise interference, and meanwhile, the controller is simple in structure and easy to realize.

The invention relates to a direct-current micro-grid system and a control method thereof. The direct-current micro-grid system comprises a direct-current power distribution circuit, a bi-directional AC/DC (alternating current/direct current) rectifying/inverting device, a distributed energy generating device, an energy storing device, direct-current loads, alternating-current loads, a urban microclimate interactive system, a clock interactive system, a micro-grid control system and micro-grid protecting devices, an upper scheduling management system is arranged in the micro-grid control system so as to form layered management for micro-grid energy. The direct-current micro-grid control method includes: entering a grid connection mode or an island model according to working state of a large power grid, and determining the working states of the energy storing device and the distributed energy generating device according to information of the urban microclimate interactive system and the clock interactive system. The direct-current micro-grid system can independently supply power to the alternating-current and the direct-current loads and can be connected with a power grid to generate power according to processed result of urban microclimate interactive information, so that requirements on power supply for users are met, cost is reduced, designing, controlling, operation and maintenance of a micro-grid are benefited, and reliability, economy and efficiency of the micro-grid are effectively improved.

The invention provides a USBKey encryption device, a system and a method using the USBKey encryption device for encryption and identification; wherein, the USBKey device comprises: a USB interface used for connection between an USB socket and a computer, an indicator used for indicting work status of the USBKey device and a built-in chip storing unique serial number of the USBKey device when leaving the factory and storing digital certificate and private key used for identifying identification of clients; the private key cannot be imported from the USBKey device. The invention is characterized in that: the USBKey device also comprises a visual screen used for displaying information under signing when digital signature is made for the USBKey device; the USBKey device also comprises one or a plurality of buttons for operations such as confirming or cancelling the information under signing; the visual screen can also be a touch panel.

The invention provides an energy-storage voltage-balanced power electronic electric energy converting system and a control method thereof. The energy-storage voltage-balanced power electronic electric energy converting system is composed of an energy storage module, a voltage-balanced converter, a power-grid-side inverter, a power grid load, an energy-storage-side inverter and an independent load. Through control over the high-frequency soft-switching voltage-balanced converter, balanced control over an energy storage unit or module is realized, the service life of energy storage equipment is prolonged, the use cost is reduced, and meanwhile, multiple routes of isolation direct voltage are provided for the power-grid-side inverter. The energy storage unit or module is charged and discharged through the electric energy converting system, electric isolation of energy storage and a power grid is realized, interaction is formed with the power grid, and the purposes of peak load shifting, harmonic suppression and reactive compensation are realized. The energy-storage voltage-balanced power electronic electric energy converting system is realized through modularized design and has the advantages that electric isolation of the power grid and the energy storage side is realized, control is simple, the size is small, the efficiency is high and the cost is low.

The invention belongs to the technical field of Internet of Things, and specifically relates to an Internet of Things data service middleware system. The system mainly comprises a device management module, a protocol analysis module, a data interaction module, a database access interface, a data push subscription interface and an external system service packaging interface. An external sensor device sends data to the middleware system through a gateway. The device management module determines whether the used protocol is configured in a configuration file in the protocol analysis module according to the data packet. If the protocol is configured, a corresponding virtual entity is established for the sensor, and the data packet is sent to the protocol analysis module. The data packet is unpacked according to the corresponding protocol encapsulation class. The unpacked data enter the data interaction module for unified format conversion and enter a data queue to wait for processing. Three data interfaces are used for providing a database access operation, pushing data to a subscribed user system for a push service system, and transmitting the data to an external service system, wherein the data are as used as the source data of the external service system.

The invention discloses a cloud platform distributed system and method based on Internet and a wifi (Wireless Fidelity) mode. The system comprises an AP (Access Point) access layer, an access control management platform layer and a centralized management cloud service platform layer from top to bottom in sequence. Through adopting a layered management technology based on the cloud service, a wlan (Wireless Local Area Network) is taken as a wireless access technology and the Internet is taken as a carrier to implement a new cloud management system of the wlan. After a user terminal is connected to an AP access point, the centralized management cloud service platform layer pushes a webpage which is customized by a merchant so as to achieve an advertising effect. According to the distributed three-layer cloud structure, the flexibility of a wlan application is implemented, and plug and play of the AP access point can be implemented, so that the expansion capability and the flexibility of the system can be greatly improved, and the system can accomplish with ease under the modes of public cloud, private cloud and mixed cloud; owing to virtual sharing of a storage of a controller, the system can support a larger network scale as a representative of a latest generation of wireless networking technology.

The invention relates to a plug-and-play smart vehicle domain controller with a redundant structure and a method. The domain controller is provided with a power supply redundancy structure, a microcontroller redundancy structure, a microprocessor redundancy structure, a communication redundancy structure, a data redundancy structure and a redundancy management module through a hardware redundancymethod. The microcontroller redundancy structure comprises more than two microcontroller MCUs which realize intelligent control and an auxiliary chip. The microprocessor redundancy structure is a multi-embedded microprocessor structure. The communication redundancy comprises multiple redundant buses. The data redundancy structure comprises more than two data storage units. The redundancy management module is used to isolate, switch and reconstruct input and output channels and signals of the domain controller when faults or attacks are discovered. The domain controller is connected with the whole vehicle to complete safe deployment, and is suitable for smart vehicles of the L3 class and above or link smart vehicles. Compared with the prior art, the domain controller provided by the invention has the advantages of high security, high reliability, high adaptability, good cross-platform versatility and the like.

The invention discloses a spatial information network isomerism dynamic networking method based on a layered autonomous area. The method includes the following steps that according to components and functions of all parts in the whole spatial information network, a spatial information network system structure is set up; according to the properties, the functions, the zone positions and the requirements, all nodes in the network are divided into different layered autonomous areas with independent networking routing strategies; boundary nodes are selected to separate a control link from a service link and the inter-domain control information transmission and the intra-domain control information transmission are separated; an intra-domain sub-layer which is in line with international standards and an inter-domain sub-layer which has the same protocol and functions on all the nodes are set up to form a layered autonomous area model network protocol stack frame. According to the spatial information network isomerism dynamic networking method based on the layered autonomous area, coupling is little, the network nodes are plugged when needed, and the network managing control efficiency is high.

The invention relates to a multi-source information fusion method based on a factor graph. The multi-source information fusion method aims to realize full-source positioning and navigation without relying on satellite navigation in a complex environment, takes an inertial navigation system as the core, utilizes all available navigation information sources, and performs rapid fusion, optimal configuration and self-adaptive switching on asynchronous heterogeneous sensor information. A factor graph model is constructed by means of recursive Bayesian estimation, the factor graph is broadened by means of a variable node and a factor node of the system after measurement information of different sensors are acquired, state recursion and updating are completed based on a set cost function, and thefactor graph optimization problem is solved through sparse QR decomposition by adopting an increment smoothing method. The multi-source information fusion method effectively solves the time-varying state space problem generated between carrier motion and measurement availability, can calculate a solution of precise navigation according to dynamic changes of a carrying platform, realizes plug-and-play of multiple sensors, and meets the requirements of carriers changing in complex environment and different tasks.

The invention refers to a kind of plug-and-play single board version managing method in communication system, which includes following steps: the version configuration information of the single board is stored in the databank on the central control point, forms the version configuration information table; when the single board is powered on, the physical information and the version information of the single board are reported to the central control point; the version configuration information can be acquired from the version configuration information table by the central control point according to the physical information of the single board, then it is compared with the version information reported by the single board, and the result is returned to the single board; according to the result, if the versions information are consistent, it starts the single board version directly; if they are not consistent, the single board downloads the running version from the central control point.

The invention discloses an object updating method, apparatus and device. The method comprises the steps of obtaining a configuration file of a target object, submitted by a first foreground device, wherein the target object is a component or an algorithm updated by a machine learning platform; loading the configuration file of the target object to a cache in a hot loading mode; after a file loading request sent by a second foreground device is received, reading an updated configuration file from the cache, wherein the updated configuration file includes the configuration file of the target object; and sending the updated configuration file to the second foreground device, thereby enabling the second foreground device to provide services according to the updated configuration file. On the premise of not restarting a server, the updated configuration file is loaded and released, so that the platform still can be normally used in the updating process.

The invention provides a backplane bus type structure of a vibration monitoring and protecting device and a communication control method of the backplane bus type structure. The backplane bus type structure of the vibration monitoring and protecting device comprises a monitoring and protecting device backplane and a monitoring and protecting device function module. The monitoring and protecting device backplane consists of a backplane bus and a plurality of bus slots. The backplane bus is simultaneously connected to the bus slots. Function modules in the monitoring and protecting device function module are respectively and correspondingly connected with one of the bus slots, so that the communication is realized by the backplane bus. The invention provides a backplane bus type vibrating monitoring and protecting device and a communication control method among the internal function modules of the backplane bus type vibration monitoring and protecting device, so that the full-period synchronous collection of real-time large-capacity full-waveform data of mechanical vibrating signals, the vibration fault characteristics extraction, the monitoring and protection, and the online analysis and diagnosis are realized; and the hot plugging and the plug-and-play of the modules are realized. Therefore, the defects that the traditional devices or products are difficult to realize the real-time processing of the large-capacity full-waveform data are overcome.

A real-time monitoring system of a modularized and bus-type tower crane belongs to the technical field of mechanical and electrical integration and comprises a bus-type field information acquisition terminal, a bus-type data processing module, a bus-type functional expansion unit, wherein, the bus-type field information acquisition terminal completes the concentration of the analog quantity information and pulse quantity information of the field status, and sends the status information and a mark to the bus-type data processing module by a CAN bus; the bus-type data processing module sends parameter classification information to the bus functional expansion unit; in the bus-type functional expansion unit, a bus-type field display unit performs the working status display and alarm of the tower crane according to the CAN bus information received; a bus-type remote communication unit sends the status information to a remote monitoring center; and a bus-type field control unit controls electric motors of the tower crane according to the CAN bus information received. The real-time monitoring system meets the requirements of flexible expansion of the monitoring parameters and compatibility and exchangeability of product.

The invention relates to an intelligent power distribution room based on the Internet of Things technology, which comprises a cloud master station, a communication network, an edge computing gateway,an Internet of Things intelligent communication unit and power distribution area intelligent terminal equipment, wherein the cloud master station is a storage, display and analysis interface of powerdistribution area data, is deployed in an intranet by adopting a cloud architecture, and comprises an Internet of Things equipment access platform and a data display platform; the edge computing gateway, the Internet of Things intelligent communication unit and the power distribution area intelligent terminal equipment are installed in the power distribution room, and the edge computing gateway and the Internet of Things intelligent communication unit are internally provided with intelligent terminal equipment data acquisition APPs corresponding to each other. The invention further relates toan intelligent power distribution room implementation method based on the Internet of Things and a plug-and-play method of the terminal equipment. According to the invention, panoramic monitoring of power distribution room equipment and terminal equipment in a transformer area is realized; the plug-and-play of the terminal equipment is realized through the Internet of Things intelligent communication unit; and a special mobile phone is adopted to facilitate the operation and maintenance of field workers.

The invention relates to a helical scanning common path interference type endoscopic frequency-swept optical coherence tomography (OCT) real-time imaging method and a helical scanning common path interference type endoscopic frequency-swept OCT real-time imaging system. A light splitter and a reference lens are arranged in a probe, so that the whole system is formed into a common path interference structure, a micromotor mounted in the probe is used for carrying out the smooth helical scanning of a focused illuminating light beam, and the frequency-swept OCT technology which does not require mechanical scanning movement along the depth direction of a sample is adopted to achieve the purpose of fast imaging; and finally, a series of digital signal processing is carried out on the acquired interference signals to obtain the three-dimensional image of the detected sample. The invention is characterized in that: the system is not sensitive to various interferences, the probe is plug-and-play, three-dimensional imaging is real-time, image distortion is little, and the omission of pathological changes is reduced.

The invention discloses an SM2 signature algorithm-based double-check signature method. The method comprises the following steps: receiving an SM2 double-check signature request from a user, wherein the SM2 double-check signature request comprises a message p1 of bank transaction information of the user; analyzing the message p1 of the bank transaction information of the valid user to generate transaction information p2; displaying the analyzed transaction information p2 to the user for check and confirmation; detecting whether a confirmation signal from the user is received, if so, respectively calculating a hash value hash1=H(Z, p1) of the message p1 of the bank transaction information of the user and a hash value hash2=H(p2) of the transaction information p2 by using a hash algorithm, and generating a random number k which belongs to [1, n-1]; performing a point multiplication operation of an elliptic curve on a random number k and a base point G of the elliptic curve E to obtain a point kG on the elliptic curve E. By adopting the SM2 signature algorithm-based double-check signature method, the technical problem that user fund is stolen by online banking transaction hijacking, transaction manipulation and remote control which easily happen in the conventional method is solved.