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442results about How to "Realize plug and play" patented technology

A LED display screen display calibration system and calibration method

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.
Owner:SHENZHEN AOTO ELECTRONICS

Micro-grid system voltage stability control method based on robust control

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.
Owner:SOUTH CHINA UNIV OF TECH

Direct-current micro-grid system and control method thereof

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.
Owner:JIAXING QINGYUAN ELECTRICAL TECH

Automatic deployment method for distributed cloud system

The invention belongs to the field of cloud computing, and in particular relates to an automatic deployment method for a distributed cloud system, and used for solving the problem that the distributedcloud system is prone to error, difficult to standardization management of colony and low in resource utilization rate. The deployed distributed cloud system comprises a central management node, multiple cloud colonies and an automatic resource scheduling module among cloud colonies, wherein the central management node is separately connected with the multiple cloud colonies, and the multiple cloud colonies are connected with one another via the automatic resource scheduling module among the cloud colonies; a deployment node is arranged in each cloud colony, and provided with multiple servicenodes separately connected with the deployment nodes, a container warehouse is arranged on each deployment node, and a container is arranged on each service node; the automatic deployment method forthe distributed cloud system guides the user to perform customized configuration and automatic deployment on the cloud colony via a web page, collects and releases the configuration information of thecolonies, and executes automatic installation operation.
Owner:SUN YAT SEN UNIV

Encryption device, system and method for encryption, identification using the encryption device

ActiveCN101183456AImprove securityDealing with transaction hijackingFinanceTransmissionDisk encryptionWork status
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.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Energy-storage voltage-balanced power electronic electric energy converting system and control method thereof

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.
Owner:张良华 +1

Internet of Things data service middleware system

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.
Owner:FUDAN UNIV

Cloud platform distributed system and method based on Internet and wifi mode

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.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD

Virtual-axis millimeter-wave human body security check system

The invention relates to a virtual-axis millimeter-wave human body security check system. The system comprises a virtual-axis guide rail unit, a scanning unit, a scanning driving unit, a data processing unit and a display unit, wherein the virtual-axis guide rail unit comprises a first circular-arc-shaped guide rail; the scanning unit comprises a first group of millimeter-wave antenna arrays and a first millimeter-wave transceiver; the scanning driving unit is used for driving the first group of millimeter-wave antenna arrays to scan in a reciprocating virtual-axis circular-arc-shaped locus on the first circular-arc-shaped guide rail; the data processing unit is used for processing a detection signal from the scanning unit to form a human body image to be detected; the display unit is used for displaying the at least one human body image to be detected. In the human body security check system disclosed by the invention, a virtual-axis scanning way is used, the motion load does not need to be reduced, and the rotational inertia is reduced, so that the scanning speed is increased. The system is small in occupied space, and a single / double-module security check system can be assembled more flexibly according to the size of a practical space and the checked amount.
Owner:BEIJING INST OF RADIO METROLOGY & MEASUREMENT

Plug-and-play smart vehicle domain controller with redundant structure and method

ActiveCN109541987AImprove stabilityTo achieve the purpose of fault toleranceProgramme controlComputer controlMicrocontrollerComputer module
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.
Owner:TONGJI UNIV +1

Backhaul network management method, access network management entity, equipment and wireless way station

The invention provides a backhaul network management method, an access network management entity, equipment and a wireless way station and relates to the communication field. The backhaul network management method comprises the following steps of acquiring an access network request when a wireless way station joins a network; according to the access network request, distributing first backhaul configuration information for the wireless way station; and sending the first backhaul configuration information to the wireless way station so that the wireless way station establishes a corresponding backhaul link according to the first backhaul configuration information. In the scheme of the invention, through realizing configuration of a backhaul network of the wireless way station at an access network side, the wireless way station can be conveniently used and plug and play of the wireless way station is effectively realized.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Spatial information network isomerism dynamic networking method based on layered autonomous area

ActiveCN103780475AHigh efficiency of network management and controlReduce the information transmission load and the probability of network congestionNetworks interconnectionNetwork managementInformation transmission
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.
Owner:PLA UNIV OF SCI & TECH

Energy local area network distributed cooperative control method based on multi-intelligent-agent system

The invention discloses an energy local area network distributed cooperative control method based on a multi-intelligent-agent system. The method comprises the following steps: (1) constructing a three-level control framework of the energy local area network, namely a control framework of local droop control-secondary power optimization control-centralized optimization and area autonomous control;(2) designing a dispatching decision function module, in the processes of fault generator tripping and connection and disconnection switching in the energy local area network, coordinating the controllable resources with different control response rates, responding to the internal and external energy requirements of the local area network, and rapidly stabilizing the power fluctuation of the interconnection line; (3) constructing a distributed sparse communication network based on a multi-intelligent-agent system, communicating through the adjacent intelligent agents, estimating the average voltage of the whole net based on the consistency algorithm, and correcting the voltage and the frequency of the local droop controller to simulate the behavior of the synchronous generator. The control method provided realizes the energy management optimization, flexible interaction of multiple users, and coordinate operation of distributed resources.
Owner:DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1

Multi-source information fusion method based on factor graph

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.
Owner:SOUTHEAST UNIV

Hot-plugging detection and treating method

When exchanger is not in down time, the method through message of state reports of interrupter and device status machine detects hot plug. When hot drawing a module, following steps are executed: under state of not influencing normal transferring traffic flow, configuration information relevant to the module is parses and picked up from global configuration information; data link layer, IP route layer and QoS each handling module delete the configuration information, and make backup copy, and clean up status messages of the module. When hot plugging a module, following steps are executed: current NETDEV data structure on main control board is synchronized to the module; based on NETDEV data table, hardware setting is recovered for the module; command for saving global configuration information is executed to recover configuration information relevant to the module. Thus, user can move and replace a module in installation, debug and fault test without need of closing down exchanger.
Owner:HUAWEI TECH CO LTD

A single board version management method for plug and play

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.
Owner:ZTE CORP

Internet-based distributed type closed-loop control system and method

The invention relates to an internet-based distributed type closed-loop control system and method. The internet-based distributed type closed-loop control system mainly comprises a controlled system, a monitoring unit, a local control calculating unit, a control execution unit, a local gateway, a communication server and a remote control calculating unit, wherein the monitoring unit is used for monitoring a certain variable of the controlled system and transmitting a monitoring value to the local or remote control calculating unit through the local gateway, wherein the local or remote control calculating unit is distributed on the internet; the local or remote control calculating unit is used for comparing the received monitoring value as an input with a target value set by the system in advance, respectively finishing the respective calculation tasks and generating respective control instructions; and the control instructions generated through calculation are processed according to a certain logical relationship and then are output to the control execution unit for executing control on the controlled system. The internet-based distributed type closed-loop control system has the following characteristics of good real-time property, high reliability, strong applicability, convenience in implementation, low cost, good expansibility and wide market prospect.
Owner:颜士博

Object updating method, apparatus and device

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.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Chain multi-port gird-connected interface device and control method

ActiveCN107276125ARealize low-voltage DC accessAchieve high voltage outputAc-dc conversionDc-dc conversionLow voltagePlug and produce
The invention discloses a chain multi-port grid-connected interface device comprising a commutation chain. The commutation chain is formed by at least two submodule units connected in series in the same direction. The chain multi-port grid-connected interface device further comprises at least one DC converter and at least one DC-AC converter. One end of each DC converter is connected with a DC end of the corresponding submodule unit, and the other end of the DC converter is defined as a DC interaction port of the grid-connected interface device. A DC connection end of each DC-AC converter is connected with a DC end of the corresponding submodule unit, and an AC connection end of the DC-AC converter is defined as an AC interaction port of the grid-connected interface device. The invention also includes a control method using the above chain multi-port grid-connected interface device. The chain multi-port grid-connected interface device of the invention provides the plurality of independent ports for the connection with a low-voltage power supply, a load and an energy storage unit and achieves plug and play, thereby greatly reducing the implementation difficulty and cost.
Owner:NR ELECTRIC CO LTD +1

Identification and drive loading method and system of SD (Secure Digital) intelligent card

The invention discloses an identification and drive loading method and system of an SD (Secure Digital) intelligent card. The method comprises the steps of: deploying a client side tool management platform on a web portal by an operator, establishing correspondence between a manufacturer identification and a manufacturer drive program on the platform; setting a manufacturer identification location on the SD intelligent card by a manufacturer according to an application list; logging the web portal by a user through a mobile phone, downloading the application list from the web portal, and downloading a client side tool and the correspondence between the manufacturer identification and the manufacturer drive program from the client side tool management platform, and installing the client side tool, wherein the client side tool dynamically obtains insertion information of the SD intelligent card and reads and judges the manufacturer identification location; and if a field recorded by the read manufacturer identification location is in the application list, determining the manufacturer drive program corresponding to the manufacturer identification location, loading the manufacturer drive program, and if the field of the read manufacturer identification location is not in the application list, not loading the drive program.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD +1

Backplane bus type structure of vibration monitoring and protecting device and communication control method of backplane bus type structure

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.
Owner:SOUTHEAST UNIV +1

Method, device and system for service configuration

The present invention discloses a method, device and system for service configuration. The provided method includes: configuring the Virtual Local Area Network Identity (VLAN ID) of the transfer device port connected to a client according to configuration information; After a DHCP request message from the client is received by means of the transfer device, acquiring the Media Access Control (MAC)address in the DHCP request message and acquiring the Internet Protocol (IP) address corresponding to the MAC address from the configuration information; sending the response message containing the IP address and the VLAN ID to the client by means of the transfer device, to enable the client to set the local virtual local area network identity as the VLAN ID and set the local IP address as the IPaddress after receiving the response message.
Owner:HUAWEI TECH CO LTD

Device allowing electric energy meter to be plugged and unplugged without outage

The invention discloses a device allowing an electric energy meter to be plugged and unplugged without an outage. The device comprises a meter head and a base. The device is characterized in that the meter head (2) and the base (1) are of a separate structure, a base plate (3) is arranged between the meter head (2) and the base (1), and an incoming line connecting pedestal (4) and an outgoing line connecting pedestal (8) are arranged on the base plate (3); a meter head incoming line post (5) is connected with the incoming line connecting pedestal (4), and a meter head outgoing line post (6) is connected with the outgoing line connecting pedestal (8). The device has the advantages that plug-and-play of the electric energy meter can be realized, and the electric energy meter is as convenient to connect or remove as an electric appliance. The base is of a mechanical structure, so that reliability is high.
Owner:YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1

Modular and bus real-time monitoring system for tower crane

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.
Owner:SHANGHAI JIAO TONG UNIV

Input equipment and input method

The invention provides portable universal input equipment, which comprises an input module configured to input information by a user, one or more communication interfaces configured to be communicatively connected with various pieces of target electronic equipment, and a control module configured to select the proper communication interface for establishing a connection with the target equipment,wherein the input module is configured to be suitable for performing inputting for the target electronic equipment; and the information input by the input module is transmitted to the target electronic equipment through the established connection so as to input data information or send a control instruction to the target electronic equipment. The invention also provides a corresponding input method. According to the technical scheme of the invention, the input control for the electronic equipment can be implemented in a centralized way in one piece of portable universal input equipment so as to provide extra safety protection to human-computer interactions needing safety protection.
Owner:黄轶 +1

Base station data configuring method and device

An embodiment of the invention provides a base station data configuration method and device. The method comprises the steps of distributing IP addresses and wireless communication network configuring data through matching of an IP bearing network, a base station and a configuration management network body, namely, sending IP address request messages and identification when the base station is connected to the IP bearing network, the IP bearing network sending IP addresses for the identification according to the IP address request messages and sending the corresponding relationship of the identification and the IP addresses to the configuration management network body, and the configuration management network body using the IP addresses to send wireless communication network configuration data to the base station with the identification. Consequently, through the process, the base station can obtain the IP addresses and the wireless communication network configuration data, so that automatic configuration of the IP bearing network and the wireless communication network to the base station is completed, therefore, when a bearing network of the wireless communication network is the IP bearing network, the method and device can also realize plug and play of the base station.
Owner:HUAWEI TECH CO LTD

Intelligent power distribution room based on Internet of Things technology and implementation method thereof

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.
Owner:SHANDONG ELECTRICAL ENG & EQUIP GRP XINNENG TECH CO LTD

Intelligent multi-sensor system and working method thereof

The invention discloses an intelligent multi-sensor system and a working method thereof. The system comprises a plurality of intelligent sensor nodes for collecting hydrologic information and a telemetering terminal, wherein the intelligent sensor nodes are communicated with each other and communicated with the telemetering terminal through the collision avoidance multi-carrier channel access (CSMA-CA) mode based on the IEEE802.15.4 standard. The method comprises the following steps: the telemetering terminal is initialized; the telemetering terminal creates the intelligent sensor node as a node in a routing table through a distributed routing mode based on the routing table; when a new intelligent sensor node is added to the sensor system, the telemetering terminal determines the new route by radio PREQs grouping information and updates the routing table; and when the telemetering terminal receives hydrologic parameter data sent by the intelligent sensor node, the received hydrologic parameter data is uploaded to a remote base station through a way station of the Beidou satellite communication. The invention has the advantages of reliable hydrologic monitoring and high validity.
Owner:HOHAI UNIV

Helical scanning common path interference type endoscopic frequency-swept OCT (Optical Coherence Tomography) real-time imaging method and helical scanning common path interference type endoscopic frequency-swept OCT real-time imaging system

ActiveCN102525382AAvoid Image Quality DegradationRealize plug and playEndoscopesDigital signal processingPhysics
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.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

SM2 signature algorithm-based double-check signature method and digital signature equipment

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.
Owner:WUHAN ARGUSEC TECH
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