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280results about How to "Reduce the difficulty of deployment" patented technology

Location identifier and host identifier separation-based system and mobility management method thereof

InactiveCN102075420ASolve triangular routing problemsSupport multicastData switching networksRouting domainNetworked system
The invention provides a location identifier and host identifier separation-based network system and a mobility management method thereof. The system consists of a core area CA, a routing area RA formed by an organization area OA, a routing area router (RA Router), an organization area router (OA router), a mapping server in the routing area, and various terminals. To simplify the system, functional modules of the mapping server are distributed in routers in the routing area, including the RA router and the OA router, namely a distributed Hash table is used to organize the all RA routers and OA routers in the routing area to store the mapping information between a terminal location identifier, a location identifier of the OA Router connected with the terminal currently, and a host identifier; and from the terminal perspective, the router storing the mapping information of a terminal is called a mapping router Router-M of the terminal. The invention also provides an improved mobility management method on the basis of the network, which supports mobile conversation on the basis of solving the problem of routing expansibility. Furthermore, the invention can be compatible with Internet to reduce the deployment difficulty.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Gateway, LoRa (Long Range) network system, gateway running method and storage medium

The application relates to a gateway, a LoRa (Long Range) network system, a gateway running method and a storage medium. The gateway includes a gateway unit and a LoRaServer unit. The LoRaServer unitincludes a southbound interface module and a LoRaWan protocol stack module. The gateway unit transmits a received terminal message to the southbound interface module. The terminal message is a networkaccessing request message or a terminal data message. The southbound interface module transmits network accessing request plaintext, which is obtained by processing the network accessing request message, to the LoRaWan protocol stack module, and carrying out protocol conversion on the terminal data message to obtain a terminal data network message used to be uploaded to an application server. TheLoRaWan protocol stack module obtains a terminal address according to the network accessing request plaintext, and obtains a network accessing response message, which is used to be issued to a terminal, on the basis of the terminal address. Functions of a LoRa network server are integrated in the gateway of the application, then no LoRa network server needs to be additionally deployed in application to the LoRa network system, the LoRa network system is simplified, and deployment difficulty is reduced.
Owner:COMBA TELECOM SYST CHINA LTD

Communication system and method for realizing terminal switching by crossing networks and operators

The invention relates to a communication system and a method for realizing terminal switching by crossing networks and operators, which are used for converged networks and can realize the terminal switching by crossing different networks such as a telecommunication network, the internet or a radio and television network and the like, or crossing a plurality of different operators. The system is provided with an IP multimedia subsystem (IMS)-based switching terminal application server and three terminals, namely mobile equipment, a computer or a television set provided with a set-top box, wherein the switching terminal application server and the terminals establish or remove a calling by using a session initiation protocol (SIP) and transmit a signaling required by terminal switching. In the method, a switching request initiator is not limited by the network in which the terminal is positioned, and the switching mode is particularly flexible; and the method can realize the switching among different (same)-network same-number terminals or different (same)-network different-number terminals, wherein the switching operation can be performed on any party in a call (a calling party, a called party or a certain party in a multi-party calling), and both a two-party voice-frequency or video call and the terminal switching during the multi-party voice-frequency or video call controlled by a multimedia server are supported.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Adversarial sample-based verification code generation system and method

The invention discloses an adversarial sample-based verification code generation system and method. The system comprises a verification code collection layer, a preprocessing layer, an adversarial sample generation layer, a sample splicing layer and a hybridization layer. The verification code acquisition layer transmits a collected verification code data set to the preprocessing layer, the preprocessing layer converts verification code pictures into a plurality of black and white character pictures through graying, binaryzation, denoising character segmentation and the like, and a constructedneural network and an adversarial sample algorithm are randomly selected from the adversarial sample generation layer to directionally generate adversarial samples. the sample splicing layer is usedfor splicing the single adversarial sample into verification codes with different lengths, and finally, the verification codes are reversedly preprocessed by the hybridization layer and are restored into colors, so that the verification codes aeCAPTCHA based on confrontation samples are generated. The system has the characteristics of low cost, low deployment difficulty and high attack resistance.The network attack can be more effectively resisted under the condition that the website does not need to replace an existing verification code system.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Distributed container cluster service discovery method based on homebred CPU and operation system

InactiveCN108040079ASupport health monitoringImplement service discoveryTransmissionDomain nameContainerization
The invention discloses a distributed container cluster service discovery method based on a homebred CPU and operation system. According to the method, a service discovery function is provided in a DNS mode, domain names are allocated to services, names and information of the services are organized into the domain names to register into containerization software, the domain names and the service information are mapped mutually into a database, and in the process of accessing the services, corresponding IP addresses and port information are acquired by the service names so as to achieve the service discovery function. The method disclosed by the invention supports to operate on a distributed container cluster management platform based on the homebred CPU and operation system, and can achieve the service discovery function of a distributed container cluster; a problem of dependence of containers and service release on a sequence is solved, the services are not required to be released before the containers are started, and the deployment difficulty is reduced; and a discovered service set is a universal set of the services in the distributed container cluster, and is the same for eachcontainer, no matter when the containers are started.
Owner:SHANDONG INSPUR CLOUD SERVICE INFORMATION TECH CO LTD

Extraction method of collagen polypeptide and active calcium in walleye pollock bone

The invention discloses an extraction method of collagen polypeptide and active calcium in walleye pollock bone. The method comprises the following steps: (I) pretreating the raw material; (II) preparing bone collagen polypeptide through the substeps of (1) soaking fish bone in a NaOH solution and then carrying out high-temperature and high-pressure treatment, (2) extracting the bone collagen, (3) carrying out treatment via a high-voltage pulsed electric field, and (4) carrying out enzymolysis by firstly adding composite collagen protease for enzymolysis, then adding flavor protease for enzymolysis, decolorizing and deordorizing, carrying out spray drying to obtain the collagen polypeptide; and (III) preparing active calcium in fish bone through the substeps of (1) extracting tartaric acid, (2) extracting tartaric acid again, and (3) combining the extracted tartaric acids to prepare the active calcium in the fish bone. Through the extraction method, the disadvantages of thick fishy smell, bitter taste and unfavorable peculiar smells of the marine source collagen polypeptide can be overcome; the collagen polypeptide of the walleye pollock bone which is free of pungent smell, delicious and moderate in taste can be prepared; meanwhile, the bone dreg can be economically and efficiently used for preparing active tartaric acid chelated calcium; the utilization rate of the walleye pollock bone is increased; the high-value utilization is achieved.
Owner:SHANDONG ORIENTAL OCEAN SCI TECH

Vehicle image optimization method and system based on adversarial learning

The invention discloses a vehicle image optimization method and system based on adversarial learning. The vehicle image optimization method comprises the steps: collecting vehicle images photographedat different angles, and dividing the vehicle images into a standard scene image and a non-standard scene image; carrying out image preprocessing on the non-standard image to obtain a low-quality dataset; constructing a vehicle image optimization model based on the generative adversarial network, wherein the model is composed of a generator, a discriminator and a feature extractor; training a vehicle image optimization model based on the generative adversarial network, setting a loss function, calculating a network weight gradient by adopting back propagation, and updating parameters of the vehicle image optimization model; and after the vehicle image optimization model is trained, reserving the generator as a final vehicle image optimization model, inputting multi-scene vehicle images, and outputting optimized standard scene images. According to the invention, migration from complex scene vehicle images to standard scene vehicle images is realized, and the purpose of optimizing the image quality is achieved, and the vehicle detection and recognition accuracy is improved.
Owner:JINAN UNIVERSITY

Plant area high-accuracy person positioning method and positioning system

The invention discloses a plant area high-accuracy person positioning method. In the method, the interior region of a plant area is divided into a complex environment region and an ordinary region according to the plant area shielding condition, an inertial navigation positioning base station is arranged in the complex environment region, a UWB positioning base station is arranged in the ordinaryregion, 4-6 positioning base station attributes at the periphery are acquired through positioning labels, and positioning is performed through the positioning base station attributes; when 4 positioning base station attributes or more belong to the UWB positioning base station, positioning is performed through a UWB module; when the amount of the positioning base station attributes, belonging to the UWB positioning base station, is 3, the position of a current positioning label is determined by adopting a Kalman filtering method according to acquired UWB module positioning coordinate values and inertial navigation positioning coordinate values; and in other cases, an inertial navigation module is adopted to perform positioning. Through seamless combination of the two of UWB positioning andinertial navigation positioning, the plant area high-accuracy person positioning method provided by the invention solves the problem of poor positioning accuracy for positioning a blind area and a complex environment of the traditional positioning system.
Owner:NANJING SCIYON AUTOMATION GRP

Indoor positioning method, device and system based on RFID (radio frequency identification)

The embodiment of the invention discloses an indoor positioning method, device and system based on RFID (radio frequency identification). The method comprises the following steps of controlling an RFID antenna to rotate at the preset angle; obtaining the rotating angle of the RFID antenna for rotating to the current position; scanning a label; obtaining the label signal intensity corresponding to the rotating angle; determining a first elliptic equation and a second elliptic equation corresponding to the label according to the rotating angle, the label signal intensity and the rotating antenna positioning algorithm; processing the first elliptic equation and the second elliptic equation according to the elliptic intersection point calculation algorithm to obtain the corresponding two elliptic intersection points; whether the distance between the intersection point and the origin is greater than the first preset distance or not; if so, the intersection point is output; otherwise, the rotating angle when the RFID antenna rotates to another position is continuously obtained, and the cyclic operation is performed until the final intersection point is obtained. The embodiment of the invention has the advantages that only one RFID antenna is used; the advantages of simple system structure, low cost, low deployment difficulty and high hardware utilization rate are realized.
Owner:GUANGDONG UNIV OF TECH

National Bureau encryption security video data exchange card and exchange method based on FPGA and DSP

The invention relates to a National Bureau encryption security video data exchange card and an exchange method based on FPGA and DSP, and solves the problems that an existing method is not reasonable.The National Bureau encryption security video data exchange card comprises a PCB circuit board; the PCB circuit board is provided with a clock generation and management module and a power conversionand management module; the PCB circuit board is provided with a FPGA chip that is connected with a FPGA peripheral circuit; the PCB circuit board is provided with a plurality of SFP+10 gigabit opticalports and at least one PCI-E bus interface; the FPGA chip is connected with at least two DSP processors that are connected with a DSP peripheral circuit. The advantages are that the FPGA, DSP, DMA, 10 gigabit fiber data transmission, DSP national bureau algorithm and many key technologies that support safety video stream and data exchange formats are organically combined on a security video dataexchange card; the exchange card is centralized in control, simple in structure, efficient in transmission, compatible in data formats, good in file expandability, safe and reliable in data exchange,can support an existing one-way optical gate, and can isolate a gateway system function.
Owner:BEIJING ZHONGKE FUXING INFORMATION TECH

Resource gateway implementation method of digital literature adopting reverse-proxy technology

The invention provides a resource gateway implementation method of digital literature adopting a reverse-proxy technology. The resource gateway implementation method of digital literature adopting the reverse-proxy technology comprises the following steps: arranging a resource gateway HTTP (Hyper Text Transfer Protocol) server provided with reverse- proxy service between a client and an internal server; establishing a virtual host allocated with a unique HTTP port for each literature resource server respectively; establishing controlled URL lists for access of each literature resource on the resource gateway HTTP respectively, unified performing redirection of addresses of the key URL addresses contain download contents according to a regular expression; determining a user download resource whether exceeds a excessive download threshold value or not, and reminding the user of no download permision if the user download resource exceeds the excessive download threshold; and performing resource download and sending the resource to the user if the user download resource is determined legal. According to the resource gateway implementation method of digital literature adopting the reverse-proxy technology, performance loss caused by the server continually redirecting addresses and the system deployment difficulty are lowered, the stability and efficiency of the resource gateway are improved, and control aging for excessive download resource is improved.
Owner:甘肃省科学技术情报研究所

Indoor distribution system

The invention relates to an indoor distribution system, and the system comprises a DP subsystem which is used for receiving an uplink radio frequency signal transmitted by a terminal, converting the uplink radio frequency signal into a first uplink baseband digital signal, and transmitting the first uplink baseband digital signal to a Hub subsystem; an uplink radio frequency link of the DP subsystem comprises an antenna, an uplink amplifier and an uplink FPGA which are connected in sequence. The Hub subsystem is connected with the DP subsystem and used for converting the first uplink basebanddigital signal into a second uplink baseband digital signal and sending the second uplink baseband digital signal to the AU subsystem; the AU subsystem is connected with the Hub subsystem and used foranalyzing the second uplink baseband digital signal to obtain an uplink baseband signal and sending the uplink baseband signal to the GW subsystem; and the GW subsystem is connected with the AU subsystem, is connected with at least one core network of each operator in the plurality of operators, and is used for determining a target core network corresponding to the uplink baseband signal and sending the uplink baseband signal to the target core network. By adopting the indoor distribution system, co-construction and sharing of multiple operators can be realized, and the deployment difficultyand cost are reduced.
Owner:COMBA TELECOM SYST CHINA LTD +1

Information sharing platform and method thereof

The invention relates to an information sharing platform and an information sharing method. The information sharing platform comprises a signaling access module, a signaling converging module, a signaling acquiring module, a data analyzing and adapting module, an affair associating module, a data filtering module, a database module and a service system access module. The signaling access module is used for accessing the information sharing platform into a core network; the signaling converging module is used for converging signaling link information and transmitting the signaling link information to the signaling acquiring module to acquire data; the data analyzing and adapting module is used for analyzing and processing the data of the signaling link information to obtain user behavior information; the affair associating module is used for associating the related user behavior information to obtain user transaction information; and the data filtering module and the service system access module are used for sharing the user transaction information to a corresponding value added service system according to data of a database module. By the information sharing platform and the information sharing method, the value added service is complexly separated from the core network, so that the deployment difficulty of the value added service can be reduced; and the original system can be minimally influenced by adopting a safe and reliable access mode.
Owner:SHENZHEN YETUOXUN COMM TECH

Heat exchanger filth blockage detection method and device

The invention relates to a heat exchanger filth blockage detection method and device. The method comprises the steps of collecting the actual operation data of a heat exchanger during operation, and obtaining the theoretical operation state data through calculation according to the actual operation data and a predetermined operation state model, wherein the operation state model is determined according to operation data and operation state data when the heat exchanger is not blocked by dirt; acquiring actual operation state data corresponding to the actual operation data when the heat exchanger operates; and according to the actual operation state data and the theoretical operation state data, determining whether filth blockage occurs to the heat exchanger. According to the method, the filth blockage degree of the unit heat exchanger can be judged based on historical data, the judgment effect and the detection speed are improved, the problems of too large algorithm error and insufficient stability caused by few monitored operating parameters are solved, the accuracy of filth blockage judgment of the heat exchanger is improved, and the development trend can be summarized through historical operation data and real-time operation data, so that the filth blockage condition of the heat exchanger in the future is accurately predicted.
Owner:GREE ELECTRIC APPLIANCES INC

Temperature measurement method and device, server and temperature measurement system

The invention provides a temperature measurement method and device, a server and a temperature measurement system. The method comprises the steps of detecting a target object from an environment imageobtained by image acquisition equipment, and determining a first position of the target object; obtaining a thermal imaging image corresponding to the environment image through thermal imaging equipment, and determining a thermal imaging temperature of the target object based on the first position; acquiring an environment temperature through temperature acquisition equipment; and adjusting the thermal imaging temperature of the target object according to the environment temperature and the thermal imaging temperature of the temperature acquisition equipment in the thermal imaging image to obtain the actual temperature of the target object. According to the method, the temperature drift of the thermal imaging equipment is corrected through the environment temperature and the thermal imaging temperature of the temperature acquisition equipment, and the accurate actual temperature of the target object can be obtained based on the thermal imaging temperature of the target object. In addition, the method employs the temperature acquisition equipment to replace a conventional black body so as to avoid defects of the black body, so that the method improves the robustness and reduces thedeployment difficulty while guaranteeing the temperature measurement precision.
Owner:MEGVII BEIJINGTECH CO LTD
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