98results about How to "Unlimited expansion" patented technology

The invention discloses a method and system for monitoring the content delivery network (CDN) equipment status, which are used to provide an efficient platform for quick positioning and correct exception handling for operation and maintenance personnel. The method comprises the following steps: periodically reporting equipment heartbeat information to a monitoring server which is taken as a heartbeat receiving end by monitored CDN equipment; periodically and initiatively detecting the status of the monitored CDN equipment on the monitoring server to obtain an initiative detection result; comprehensively monitoring the equipment heartbeat information and the initiative detection result which are collected by the monitoring server, determining the equipment status by combining with the topological structure of the equipment, and sending an alarm aiming at root causes of a failure; and intuitionally displaying a decision result from an equipment status decision device by combining with machine room distribution and the topological structure of the equipment, and displaying the root cause alarm given out by the equipment status decision device on an alarm page.

The invention discloses a PCIe-based storage extension system and method. The system comprises a main storage device and at least one storage extension device. The main storage device further comprises a main control module and a main PCIe exchange module. Each storage extension device further comprises an extension control module and an extension PCIe exchange module. The main storage device is in cascade connection with the storage extension devices through PCIe interfaces. According to the method, the standby storage extension devices are actively awakened through the main storage device or storage extension devices, and storage capacity is extended by configuring the number of PCIe communication links between the storage extension devices and the main storage device and transmission rate. The system and method is simple and easy; storage capacity can be extended on a large scale under no capacity limitation; link bandwidth is configured according to a configuration command, so that link bandwidth can be widened effectively, intelligent awakening of the storage extension devices is supported, and the purpose of energy-saving design is achieved.

The invention discloses an expandable multi-user quantum key distribution network system and a key distribution method thereof; wherein the system comprises a point-to-multipoint quantum key distribution system composed of a quantum key transmitting terminal and a plurality of quantum key receiving terminals. The key distribution method includes the steps: firstly, the quantum key transmitting terminal namely the transmitter and a plurality of quantum key receiving terminals namely the receivers carry out quantum key distribution, the transmitter and each receiver all share a random quantum key; secondly, any two receivers send a request to the transmitter, the transmitter compares the two quantum keys shared with the receivers bit by bit and sends the comparison result to the two receivers, and the two receivers can obtain the quantum key shared by the transmitter and the other receiver by combining the own quantum key shared with the transmitter. The invention is reasonable in design and convenient in use and operation, and has strong user capacity expansion capability, long transmission distance and good user functionality; and any two legal receivers can share the key.

The invention relates to a smart home system, which comprises at least one end device. The end device communicates with a coordination device and at least one device to be controlled in a communication system, and comprises a microprocessor, a storage module, a signal receiving module and a signal transmission module, wherein the microprocessor learns a signal from a first source, stores the learned signal of the first source in a storage module, controls the at least one device to be controlled by using the learned signal of the first source, receives an instruction of controlling the at least one device to be controlled from the coordination device at a first given time slot, and transmits the learned signal of the first source to the at least one device to be controlled according to the instruction in a second given time slot; the storage module stores the learned signal of the first source, and the signal is used for controlling the at least one device to be controlled; the signalreceiving module receives the signal from the first source; and the signal transmission module transmits the learned signal of the first source to the at least one device to be controlled to control the at least device to be controlled.

The test system thereof comprises: an upper-computer and several wireless sensor network simulation nodes. The nodes communicate with the upper-computer through a wired way. The method thereof comprises; 1) the test system downloads the simulation parameters from each simulation node; 2) the nodes make a variance process for its transmitted data message once transmitting data during working process; 3) during node networking, route selection, node on-line, node off-line, the test system records relevant working parameters without intermission; 4) comparing the recorded working parameters with the theoretical value of the algorithm in order to evaluate the senor network.

The invention discloses an intrusion detection real-time analysis system for a big data application platform. The system is mainly divided into three layers, namely, an information collection layer, an operation layer and a display layer. The information collection layer mainly comprises a monitoring module and two assemblies which are in communication with each other, and the two assemblies include an Agent arranged on nodes of the big data application platform and a Server arranged in an intrusion detection system. The operation layer comprises a feature base module, a real-time analysis module and a trend analysis module. The display layer comprises an alarm module and a unified statement module. By means of the intrusion detection real-time analysis system, intrusion detection, real-time monitoring, active discovery, active defense and linkage management and control can be conducted on the big data application platform in real time. In addition, intrusion detection based on big data can be infinitely extended. The big data application platform can only focus on services with the help of the intrusion detection system, and no efforts need to be spent on worrying about intrusion of internal users and external users.

The invention discloses a video conference system and method based on the CDN. The system comprises video and audio acquisition terminals and the CDN, wherein the video and audio acquisition terminals are arranged in various conference halls, and the CDN is located in an internet platform. The system further comprises CDN node servers and a multipoint video stream synthesis server. The CDN node servers are used for acquiring video and audio streams of the conference halls and forwarding the video and audio streams of the conference halls to the multipoint video stream synthesis server, and after the multipoint video stream synthesis server synthesizes the video streams of the conference halls into frames, the synthesized frames are distributed to the CDN node servers through the CDN. By means of the characteristic of CDN data processing balance, the conference system is established on the internet, the difficult situation that a traditional private wire network is a point-to-point hardware facility and cannot be revoked once being established is avoided, the joining threshold is greatly lowered, and application and popularization of video conferences are facilitated.

The invention provides a health monitoring system, which is composed of a health monitoring device, a 3G network and a Web server. The health monitoring device is connected to the Web server through a 3G network. The embedded device of the GPS module, the web server is a virtual host built using cloud computing services, the health monitoring equipment collects data and transmits the data to the web server through the 3G network, and the web server processes the data and feeds back to the health monitoring equipment .

The invention relates to a modular maritime floating island, comprising multiple welded all-steel-structure floating box modules, rubber mats and linking cables, wherein the floating box modules can be square modules and rectangular modules, or can also be hexagonal modules; each module is provided with an upper linking boss and a lower linking boss; every two adjacent floating box modules are linked by one cable; a floating box body of each floating box module is divided into an upper layer and a lower layer; the lower layers are respectively and internally provided with a watertight compartment; the upper layers are respectively provided with a working and living room; the lower layers and the upper layers are correspondingly communicated by through cross channels; the sides of the channels are respectively provided with a staircase communicated with the upper plane of a floating box. The modular maritime floating island has the beneficial effects that the floating boxes can be modularly and massively produced, and are applied to maritime combination for infinite extension; the floating island has a strong capability of resisting stormy wave, is small in immersion depth and can be berthed on the bank side of a shallow sea or in a lagoon in a floating way; after a plurality of power modules are combined, the floating island can be positioned in a deep sea in the floating way; the modules which cannot be restored due to damage can be sunken into the sea bottom by unfastening the cables; each floating box module is provided with an independent rainwater collector and an independent septic tank; therefore facilities such as a community, a greenhouse, an aquaculture net cage and an airport can be built on a large floating island.

The invention discloses a university maths event teaching demonstration device based on big data analysis. The device comprises a box, a feeding box is mounted at the upper end of the box, multiple air outlets are formed in the top wall of the feeding box, multiple plastic balls are placed in the feeding box, two protection plates are symmetrically arranged in the box obliquely, a limiting sleeveis jointly connected on the protection plates, multiple retaining blocks are uniformly mounted on the inner side wall of the box, multiple ball outgoing pipes are uniformly mounted on the inner side wall of the box, an infrared sensor is mounted on the inner side wall of each ball outgoing pipe, and a guide net is obliquely arranged below the ball outgoing pipes. The device has the advantages thatthe device is ingenious in structure and convenient in use, mechanization of small ball counting is realized, and operation energy of labor is saved; the number of experiment samples is increased, sothat experiment results are closer to an ideal value, experiment accuracy is ensured, and reference value of experiment data is increased.

The invention discloses a data management method and device. The data management method comprises the following steps: receiving a data write-in request; judging whether the data size currently saved in a first database system is up to a data size threshold value or not; if the data size currently saved in the first database system is up to the data size threshold value, acquiring a first data identifier corresponding to the data write-in request, and judging whether to route the data write-in request to a second database system or not according to the first data identifier. According to the data management method and device disclosed in the invention, the second database system is used for saving more data when the data size currently saved in the first database system is up to the data size threshold value, and in such a way, the efficient management of the data can be realized without migrating the data saved in the first database system; moreover, the expansion of databases is not limited and new database systems can be ceaselessly established to save more data.

The invention discloses a main and backup line switching system for a radio frequency adapter and a transmitter and an implementation method thereof. Based on the characteristics of high speed and always online of the GPRS (general packet radio service) wireless communication technology and by means of a network, the switching between main and backup lines can be realized so that the equipment maintenance does not occupy the use time of users, the normal maintenance and overhaul of the equipment can be realized in the mode of switching between the main line and the backup line; a remote monitoring center monitors the parameters of each component of the system in real time through a GPRS wireless monitoring unit and sends control instructions to each component through the GPRS wireless monitoring unit so as to timely alarm and solve the problem. By the adoption of the invention, the traditionally manned patrol mode is changed, human resource is saved, and the problem that transmitters are widely distributed, mostly distributed in rural and remote areas with complicated surrounding environments and are in an unattended state can be overcome.

The invention discloses a patient rehabilitation rating scale generation method, which comprises the following steps of creating patient file information or opening the created patient file information, selecting rating items, calling test questions in a database, and generating test rating paper; after the test is completed, calculating rating results, entering and submitting the rating conclusion, and transmitting the rating conclusion to the database to be stored; calling a historical rating record of a patient, and respectively generating a curve graph of the rating record and a curve graph of the historical rating record in the same coordinate axis. The invention also discloses a patient diagnosis and rehabilitation rating scale generation system.

The invention discloses a recombinant baby hamster kidney cell line (BHK 21) capable of stably expressing encephalitis B virus PrM / M-E protein, and more particularly, the recombinant cell line capable of expressing the PrM / M-E protein is BHK-JEV-ME and is preserved in the China General Microbiological Culture Collection Center (CGMCC) with the culture preservation number of CGMCC No. 5263. The invention also discloses a method for preparing the recombinant cell line and the application of the recombinant cell line in the preparation of encephalitis B prevention vaccine.

An entrance guard system is composed of system host, multiple controllers connected to said system host, multiple card readers, multiple electric locks and multiple user cards. The system number and system password are stored in said controller. The system number, system password, serial card number and right data are stored on user card. It features that the number of users is independent with to memory capacity of controller.

The invention relates to a portable system for rapidly recognizing chemical fertilizer, which comprises a computer terminal, a Raman spectrometer and a database server, wherein the computer terminal is respectively connected with the Raman spectrometer and the database server; standard spectrogram data are set in the database server; the Raman spectrometer collects Raman spectrogram data of to-be-detected samples and transmits the Raman spectrogram data to the computer terminal; and the computer terminal compares the collected Raman spectrogram data and the standard spectrogram data in the database server to recognize the chemical fertilizer. Compared with the prior art, the portable system has the advantages of wide application range, high measurement accuracy, high measurement efficiency, and the like.

The invention provides an underwater remote control communication network. The underwater remote control communication network comprises an overwater network and an underwater network, a plurality of independent first ring nets are formed by each overwater controller and two overwater exchangers, a plurality of independent first ring nets are formed by each underwater controller and two underwater exchangers, second ring nets are formed by overwater and underwater exchangers and overwater and underwater optical transceivers, the whole network is in a multi-net crossed network structure which is formed by the second ring nets and the plurality of parallel first ring nets which are established on the second ring nets, all control devices and network links in the network are copied, the network redundancy degree and the fault tolerance are high, the first ring nets can be expanded on the second ring nets at will, the network expandability is high, the forming of a distributed control system with high reliability is facilitated, and the whole network is clear in structure, reasonable in design, low in costs and particularly suitable for signal transmission of an underwater remote control device.

The invention relates to a method for expanding storage space on line, which comprises a step of providing a storage virtualization manager which can virtualize many storage spaces accessed by a server into a unique virtual storage space and display the unique virtual storage space to a user in a directory structure mode. The method is characterized in that the many storage spaces have the same directory structure. In the method, the online expansion of the storage space of the server can be realized by increasing the storage spaces the server can access at any time and avoiding turning off the service in advance at each time of capacity expansion, and as the number and size of the online storage spaces the server can access are not limited, endless capacity expansion can be realized.

The invention discloses an infinitely-extensible unified management teaching system comprising a student terminal, a teacher terminal, and a cloud server. The cloud server is used for data storage and processing and internet-based data resource updating at any time; the teacher terminal is used for searching data resources in the cloud server, downloading, editing, storing, and transmitting the data resources, and uploading the data resources to the cloud server; and the student terminal is used for receiving the data resources sent by the teacher terminal, editing the data resources sent by the teacher terminal within a permission range, and feeding the data resources to the teacher terminal. According to the invention, the traditional teaching way is split and recombined by using a modularization concept; and thus infinite extension of a teaching process as well as infinite extension of a teaching content is realized.

The invention discloses an industrial internet-of-things distributed data access method and a database system. The method comprises the steps of allocating a sub-database to a measurement data source of a region, wherein each sub-database stores the data content of the region, and a main database stores an IP address and a data source range of each sub-database; when the main database receives a data subscription request from an application service, matching a data source range in the request with that of each sub-database, finding IP address / addresses of one or more matched sub-databases, and sending the data subscription request to the sub-databases; and after the data reported by the sub-database is received, returning the data to the corresponding application service. Therefore, huge data in an industrial internet-of-things system can be reasonably split and stored; the main database can quickly find an actual storage position of each piece of the data and call the data; while industrial internet-of-things application demands are met, the load of the main database can be reduced and the data search speed can be increased; and the database can be expanded infinitely and is smooth to upgrade.

Provided in the invention is a temperature-compensation-function-contained method for estimating the charge state of a lithium battery. On the basis of the second-order RC network equivalent circuit model of all single batteries, a temperature model of all single batteries of a lithium battery group is established by combining the thermodynamic first rule, the Fourier's law and Newton's law of cooling, wherein the temperature model includes internal heat generated by all single batteries, convection and heat exchange between all single batteries and an ambient environment, convection and heatexchange among all single batteries, and conduction and heat transfer between all single batteries. Because of establishment of the temperature model, the estimation precision of internal parameters,including the open circuit voltage, internal resistance, polarization internal resistance, and polarization voltage, of the equivalent circuit model of all single batteries is improved; and on the basis of the unscented Kalman filter algorithm, the SOC of each single battery is estimated and the estimation precision of the SOC of each single battery is improved by combining the UKF of the temperature model. Therefore, the technical means and support basis having the certain reference value can be provided for the estimation method research of the SOCs of all single batteries in the lithium battery group.

The invention provides an electric vehicle automatic charging and battery replacing system and an electric vehicle automatic charging and battery replacing method. The electric vehicle automatic charging and battery replacing system comprises an electric vehicle, a battery assembly loaded at one end of the electric vehicle and a charging device used for supplementing electric energy to the batteryassembly. The electric vehicle is provided with a containing cavity with an opening in one end and an openable baffle arranged at the opening end of the containing cavity. The battery assembly comprises a battery pack for storing electric energy and a movable support used for limiting and supporting the battery pack and driving the battery pack to move under the stress condition. One end, close to the baffle, of the battery pack is provided with an electrode lead-out piece, and one end, close to the baffle, of the movable bracket is provided with a magnetic piece; the charging device comprises a supporting table, a supporting plate formed by protruding and extending from one side of the supporting table, an electromagnetic matching part capable of generating a magnetic attraction effect on the magnetic part, and a charger used for being electrically connected with the electrode lead-out part. Automatic charging and battery replacing of the electric vehicle can be achieved, and the labor intensity of personnel is reduced.

The invention discloses a server cabinet and a data center with the same. The server cabinet comprises a cabinet body, a plurality of servers, a main power supply, a power bus-bar, a battery management module and a plurality of battery modules, wherein the servers and the main power supply are arranged in the cabinet body; the main power supply is connected with commercial power, and converts the commercial power into direct current of which a voltage value is first voltage; the power bus-bar is arranged outside the cabinet body, is connected with the main power supply and the servers, and is used for supplying power to the servers by adopting the direct current of which the voltage value is the first voltage; the battery management module and the battery modules are arranged in the cabinet body, and are connected with the power bus-bar; and the battery management modules are used for supplying power to the battery modules by adopting the direct current of which the voltage value is the first voltage when the main power supply normally supplies the power, and supplying the power to the servers by adopting direct current output by the battery modules when the main power supply is abnormal. The main power supply is directly connected with the servers, and the commercial power is directly supplied to the servers after being rectified, so that efficiency is improved; and in addition, the battery modules are independently controlled by the battery management module, so that high safety is ensured.

The embodiment of the invention discloses a child-mother type far-end radio frequency unit and method for realizing indoor deep coverage thereof. The child-mother type far-end radio frequency units are connected through network cables and are connected to an expansion unit through the network cables or photoelectric composite cables. The expansion unit is connected to a baseband processing unit through an optical cable. The child-mother type far-end radio frequency unit comprises a radio frequency capacity type mother unit which is used for receiving and transmitting digital baseband signals of a baseband processing unit. The radio frequency coverage type subunit is used for receiving the intermediate frequency signal of the radio frequency capacity type mother unit, converting the intermediate frequency signal into a radio frequency signal, and transmitting the radio frequency signal to a built-in antenna of the radio frequency capacity type mother unit after passing through the filter amplifier. More than two external antenna interfaces are arranged in the radio frequency capacity type mother unit, and the external antenna interfaces are used for being externally connected with more than two radio frequency coverage type subunits through network cables. Through the child-mother type far-end radio frequency unit, the line loss can be reduced, and the coverage requirement can be met. In addition, implementation and maintenance are convenient, capacity expansion is easy, and overall manufacturing cost is low.

The invention relates to an intelligent supply chain application platform and application thereof. According to the technical scheme, the blockchain and the target management device are directly interconnected; the invention discloses an intelligent supply chain application platform, an operation method, a financial application platform and a financial financing method, wherein underlying data candirectly enter a block chain for comprehensive utilization. The invention discloses an intelligent supply chain application platform. Monitoring equipment is arranged in a monitoring field. The monitoring device and the monitoring management platform are interconnected. The monitoring management platform and the block chain are interconnected; the block chain is interconnected with the application management platform; the technical scheme provided by the invention has the positive effects that the problem that the supervisor is not directly communicated with the block chain in the prior art is eliminated, and the database of the monitoring data directly enters the block chain, so that the synchronization, real time and reality of the supervision information are realized, and the method and the system can be widely used in the field.

The invention discloses a mobile robot and a mobile robot system and relates to the field of mobile robots, particularly to the technology of communication interaction among mobile robots. The mobilerobot system, which is in a cluster mode and is trackless and light in weight, is designed through the technology of bionic ants. The mobile robot system achieves communication through an LED (light emitting diode) photoelectric array and solves the problem of sensitivity to remove wireless signals of large plants such as power plants and oil plants. The mobile robot adopts a small and light-weight design scheme and accordingly can meet the requirements on cluster type, no track, automatic charging and complex line navigation. The mobile robot system has the advantages of, through the image vision monitoring communication technology and by receiving and transmitting information via queue combination, being easy to maintain, high in expansibility and applicability and capable of being applied to occasions with high electromagnetic interference and high sensitivity to wireless signals.

The invention discloses a privacy protection method for a fog computing medical system, which adopts a hierarchical attribute encryption method to disperse the authority of attribute authority and computing load and improve the expandability of the authority and computing load, so that the authority and computing load are suitable for a dynamically changing fog computing environment; secondly, performing encryption processing on the privacy information of the user; in the encryption process, a ciphertext fixed length technology is used for generating a ciphertext with a constant length; on thebasis, modifying a key generation algorithm by utilizing an outsourcing decryption technology; firstly, an original private key is output; when requesting to decrypt, the user outputs a conversion private key and an Elgmal type key by using a key conversion algorithm; wherein the conversion private key is submitted to the decryption server, the Elagamal type private key is stored by a user, the decryption server starts a ciphertext conversion algorithm, the ciphertext is converted into the Elagamal type ciphertext by using the conversion private key, and finally, the user can recover the plaintext only through one time of multiplication.

This invention provides a circuit expansion method characterizing that a signal connecting device is set on the shell of a containing circuit for transferring signals and / or inputting supply and a signal connecting device matched to it is set on the expnding shell of a containing expanding circuit correspondingly and the devices are connected with circuits in their shells separately, the circuits are connected to each other via the connecting devices and transmit signals or supplies and a locating device and the connecting device are set on the two shells correspondingly to be fixed and connected by the devices.

The invention discloses a network data packet analysis method and system. The analysis method includes: acquiring a network data packet; dividing analysis content of the network data packet into multiple tasks according to an analysis object, and determining an execution sequence; creating multiple message queues and multiple computational node groups in one-to-one correspondence to the tasks; caching the network data packet into the message queue corresponding to the starting task; sequentially executing following actions until the last task is executed by each computational node group: acquiring all data in the corresponding message queue corresponding to each computational node group, executing the corresponding task, and sending an execution result to the next message queue. Compared with the prior art, the network data packet analysis method and system has the advantages that the analysis content of the network data packet is divided into the tasks which are distributed into different computational node groups, and the message queues are taken as a core for distributed processing, so that processing capacity is improved greatly, coupling among different computational nodes is reduced, and horizontal extension is realized.

The invention relates to a movable-type spraying dust removal system for a long rod piece. The movable-type spraying dust removal system comprises a working table, a dust sucking box, a flexible rubber pad, an air channel and at least two pressing guide rollers. A rotary table support is arranged at the left end of the working table, and a tip support is arranged at the right end of the working table. The rotary table support is provided with a main speed adjusting motor and a chuck. The tip support is provided with a movable tip and an air cylinder. The air channel is provided with a grid andan air exhaust opening, the dust sucking box is arranged above the grid, the lower portion of the dust sucking box is open, and the dust sucking box comprises a box body and a dust collecting hood. The grid and the dust sucking box are covered with the flexible rubber pad, and the two ends of the flexible rubber pad are fixed. According to the movable-type spraying dust removal system, a large fixed-type air suction opening is changed into a movable-type air suction opening moving synchronously with a spray gun, thus the opening diameter of the air suction opening is decreased greatly, the air suction motor power needed is reduced greatly in the case of the same negative pressure, thus equipment investment and electric energy consumption are remarkably reduced, and positive technical significance is achieved.