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82results about How to "Achieve smooth upgrade" patented technology

SAS hard disk and NVMe hard disk compatible hard disk backplane

The invention discloses an SAS hard disk and NVMe hard disk compatible hard disk backplane, and relates to the field of server hard disk backplanes. The integral structure of the hard disk backplane is a PCB board card on which a plurality of hard disk connectors and a CPLD are arranged, the hard disk connectors are SAS hard disk and NVMe hard disk compatible connectors, and are connected to the CPLD; and the CPLD can be used for automatically recognizing the types of connected hard disks, and is in communication with a BMC management module on a server mainboard through an I2C bus. According to the SAS hard disk and NVMe hard disk compatible hard disk backplane, an SAS hard disk and an NVMe hard disk use a same onboard connector and are compatible, so that the online change of the two hard disks is realized, the operation convenience is improved and the board card development cost is reduced; the management, carried out by the BMC management module, on the hard disk operation states and health conditions is realized; and by using different combinations of LED lamps, the current hard disk states are shown, so that convenience and visualization are provided.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Power distribution net box type transformer environmental parameters on-line monitoring system

The invention relates to a power distribution net box type transformer environmental parameters on-line monitoring system which includes the steps that aiming at any one of box-type transformer substations, the power distribution net box type transformer environmental parameters on-line monitoring system is provided with a plurality of sensors, wherein at least the temperature of a high pressure charged body in the environmental parameters of the box-type transformer substations, the high frequency partial discharge, the temperature and humidity in the box-type substation are monitored correspondingly by the sensors, and the monitored data of the various sensors are received and sent to a front-end data acquisition unit of a monitoring center based on a wired or wireless communication mode. The data processing server device of the monitoring center carries out the storage and processing analysis for the received data to generate a real-time dynamic monitoring curve and produces an audible and visual alarm when the monitored data exceed a set threshold value, and meanwhile the alarm information can notify attendants in the relevant areas in a text message form, so that the time of incident response is shortened and the economic loss is reduced.
Owner:SHANGHAI OUYI INTELLIGENT NETWORK +3

SIP (Session Initiation Protocol)-based regional ground-to-air radio station voice networking system and implementation method thereof

The invention discloses an SIP (Session Initiation Protocol)-based regional ground-to-air radio station voice networking system which comprises a plurality of ground-to-air radio stations and also comprises a tandem scheduling server, an SIP (Session Initiation Protocol) radio station voice communication terminal and a networking node network element device, wherein the networking node network element device is connected between the tandem scheduling server and the SIP (Session Initiation Protocol) radio station voice communication terminal and connected with the ground-to-air radio stations.The SIP (Session Initiation Protocol)-based regional ground-to-air radio station voice networking system can realizes integration with a ground-to-air data link system and can realize goal-oriented ground-to-air voice command which is compatible and coordinated with ground-to-air data link system; and a commander can synchronously obtain the voice command control capacity when seeing a target. Moreover, a communication link for directly implementing the voice command control on first-line task aircrafts is provided for a remote high-level command center within shorter setup time and in more flexible setup mode so that commands of chief executives can reach the first-line aircrafts immediately and the effect that a link can be uses as long as set up is achieved.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Dynamic rule engine configuration method based on service processing

The invention provides a dynamic rule engine configuration method based on service processing and is characterized in that: in the method, a foreground configuration decision unit, a process and function code unit, a database with a rule engine configuration table, a decision step definition table, a decision compile generator, a unit for saving a C++ program file, a unit for saving a .so file and a .a file, a C++ compiler, a public base for saving information in a basic type, a network type, a configuration file type, a dispatching interface type, a database type, a monitoring type, a public log type, a progress communication type, a public configuration type and an information point distribution and control type, and an application program unit having a plurality of application programs are provided; due to cooperative processing of the units, a humanized configuration interface is realized and the configuration of a service rule is finished without a professional technicist; and the service rule is converted into the C++ program file and compiled into the .so file and .a file so as to generate a final program for processing the service logic and finish the service processing.
Owner:中电福富信息科技有限公司

Method for realizing adaptive signaling in distributed control collaborative optical networks

ActiveCN101605278ASolve resource congestionFlexible updates and upgradesMultiplex system selection arrangementsTime-division multiplexRing protectionSignaling process
The invention relates to the communication field. The embodiment of the invention discloses a method for realizing adaptive signaling in distributed control collaborative optical networks. The method comprises collaborative transaction modules introduced into intelligent optical network control nodes, a real-time interaction method for optical network control and management, an implementation method for collaborative hardware equipment nodes, a ring-protection signaling implementation method in management-control collaborative systems, a networking proposal for management-control collaborative platforms, a collaborative operation signaling process and an operation mode thereof. The method combines management planes with control planes by introducing the collaborative transaction modules, assists in automatic connection control technology through management technology, reduces expenses of the centralized interaction of a great amount of data, and performs real-time interaction through short fast control messages so as to solve the disadvantage that distributed networks are not adjustable or controllable and provide a quick connection method supporting a plurality of QoS levels. The method can realize the quick resource announcement, quick resource discovery and the quick command transmission of managers through simple management-control interaction, and can solve resource jam, preemption and other problems in a signaling process through real-time or dynamic resource locking according to the resource blocking situation of nodes or links passed.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Variable wavelength-based hybrid optical access system

The invention discloses a variable wavelength-based hybrid optical access system, which comprises an optical line terminal (OLT) part, a remote node (RN) part and an optical network unit (ONU) part connected together through an optical fiber circuit, wherein the OLT part comprises a plurality of optical transceiver modules TRX; when an injection-locked Fabry-Perot laser diode (FP-LD) or reflection semiconductor optical amplifier (RSOA) is adopted at the transmitting end Tx of each optical transceiver module TRX, the common end of a first wave multiplexer / de-multiplexer MUX / DEMUX1 is connected with a light source SL through a wavelength division multiplexed (WDM) component and the output end of the WDM component is connected with the optical fiber circuit; or when a fixed wavelength laser or adjustable wavelength laser is used at the transmitting end Tx of the optical transceiver module, the common end of the first wave multiplexer / de-multiplexer MUX / DEMUX1 is connected with the optical fiber circuit directly. The variable wavelength-based hybrid optical access system of the invention can adapt to the network deployment of each operator so as to realize smooth updating of the network structure, solve the problems of the shortage of the optical fiber resource, the inventory cost and the maintenance cost and meet the requirements on the bandwidth and speed.
Owner:FENGHUO COMM SCI & TECH CO LTD

Server gray scale upgrading method and apparatus, and corresponding gray scale upgrading server

The invention relates to a server gray scale upgrading method and apparatus, and a corresponding gray scale upgrading server. The server gray scale upgrading method comprises the following steps: simultaneously sending the service request of a client to an old server and a new server, sending the feedback result of the old server to a corresponding client end, comparing the feedback result of the old server and the feedback result of the new server, and obtaining a comparison result; according to the comparison result, determining that the service request is simultaneously sent to the old server and the new server, sending the feedback result of the new server to the corresponding client end, and detecting the response of the client end; and according to the response of the client end, only sending the service request to the new server, and sending the feedback result of the new server to the corresponding client end. The invention also relates to a server gray scale upgrading apparatus. By using the server gray scale upgrading method and apparatus, server upgrading is carried out by use of a multidimensional gray scale upgrading mode, the risks are low, the efficiency is high, and smooth server upgrading can be realized.
Owner:TENCENT TECH (BEIJING) CO LTD

Smooth service upgrade method and device

ActiveCN106850746AAvoid jitterReduce frequent jitterTransmissionDatabaseService discovery
The embodiment of the invention provides a smooth service upgrade method and a smooth service upgrade device. The method comprises the steps of registering a plurality of new service nodes into a first service set, and registering the first service set into a service finding application program; executing simulative offline on a second service set including a plurality of old service nodes to be off the line from the service finding application program, connecting all new request transactions to the plurality of new service nodes, thus allowing the plurality of old service node to stop receiving the new request transaction and only process the request transactions to be processed received before simulative offline; and stopping the service of the old service nodes after the request transactions to be processed are completely processed by the old service nodes in the second service set. According to the method provided by the invention, the situation that no uncompleted request transaction exists during an upgrade process can be ensured, service jitter is avoided as much as possible, the situation that the service jitters frequently due to frequency change of the plurality of nodes during the service upgrade process is relieved, and smooth upgrade is achieved.
Owner:MICRO DREAM TECHTRONIC NETWORK TECH CHINACO

Upgrading method and its system for remote equipment in communication network

The present invention discloses remote equipment updating method and system in communication network, for reducing the required transmission data quantity to remote equipment in updating. It contains dividing transmission single board software package into initial software package using module as unit, after removing repetitive initial software package, establishing corresponded relation for designating that each single board software package is respectively composed of what initial software package, said remote equipment recomposing initial software package to the software package used for activating each single board according to corresponded relation. If remote equipment current version does not support the obtained updating correlated data process, the master control board software package can be downloaded in advance to remote equipment, updating master control board software and activating to make activated master control board capable of supporting initial software package recombination, then updating other single board in recombination mode.
Owner:SHANGHAI HUAWEI TECH CO LTD

Professional meteorological service application platform based on power grid GIS

The invention relates to the field of meteorological application of electric power systems, in particular to a professional meteorological service application platform based on a power grid GIS. The platform includes a data acquisition and conversion module, a data storage module, a professional service adding module, a professional service module and a page display module; the ideas of modular design and object orientation are adopted, and according to the needs of business expansion, function modules can be flexibly added or modified without affecting original business, so that the system is good in function expansibility; when the current configuration of the system can not meet the function implementation need or the overall performance of the system is reduced, the expansibility can achieve smooth upgrading of the system by adjusting hardware configuration or increasing servers, so that the overall performance of the system is extended. The system can perform equipment model selection and flexible configuration according to the user quantity and the function implementation need and is scientific, rigorous and flexible.
Owner:SHANDONG LUNENG SOFTWARE TECH

Novel optical track network node structure and FPGA implementation method thereof

The invention provides a novel optical track network node structure. The structure comprises a filtering / amplifying unit, a switch unit, a receiving-transmitting unit, an add / drop converting unit, a multiplexing / de-multiplexing unit and a control unit, wherein the filtering / amplifying unit is connected with the switch unit and the control unit respectively; and the switch unit is connected with the multiplexing / de-multiplexing unit, the add / drop converting unit and the receiving-transmitting unit in turn. The novel optical track network node structure has the advantages that: 1, an optical track network test platform is built by using existing mature devices, so that the technology is simple and the cost is relatively low; 2, the test platform can be smoothly upgraded; 3, built-in resources of FPGA can be fully utilized, so that not only the utilization ration of resources is improved, but also the test cost is lowered; and 4, the defects of the optical track technology in experimental research can be overcome, and the learning study effect in experimental teaching can also be improved.
Owner:ZHEJIANG UNIV OF TECH

Optical signal processing method, optical module and optical line terminal

An optical signal processing method, optical module, OLT optical signal processing method and OLT are disclosed in the embodiments of the present invention. The optical module comprises two photoelectric transceiver units and a wavelength division multiplexer unit. The photoelectric transceiver units are configured to: generate, according to an electric signal, a downlink optical signal with a corresponding rate and wavelength, and then output the downlink optical signal to the wavelength division multiplexer unit; and receive an uplink optical signal with a rate and wavelength corresponding to a burst mode from the wavelength division multiplexer unit, and convert the uplink optical signal into an electric signal. The wavelength division multiplexer unit is configured to: after receiving the downlink optical signals from the two photoelectric transceiver units, wavelength division multiplex the downlink optical signals and then output the outcome; receive the uplink optical signal, de-multiplex the uplink optical signal to obtain uplink optical signals with different rates and wavelengths, and output the uplink optical signals to the corresponding photoelectric transceiver units respectively.
Owner:ZTE CORP

Single board updating method for implementing uninterruptive service

The present invention discloses a veneer upgrading method realizing uninterrupted business. The veneer compatible management module is adopted to conduct data arrangement to the compatible veneer; the veneer of upgrading utilization is rearranged to a standby veneer which then changes into an arranging veneer. The arranging veneer electrifies and transmits a compatibility checking requirement to the veneer compatible management module which judges whether the arranging veneer is compatible with the veneer of upgrading utilization. If the arranging veneer is compatible with the veneer, the compatible information is transmitted to the arranging veneer which starts successfully; otherwise, the veneer compatible management module gives an alarm to indicate that the veneer of upgrading utilization and the arranging veneer is not compatible. The arranging veneer and the principle veneer rearrange of principle and standby and the principal veneer rearranges to the standby veneer to have an upgrade. The method of the present invention realizes the veneer upgrades smoothly without interrupting of the services of the veneer, thereby achieving the effects of sustaining the services and stabilizing the system in the upgrading process.
Owner:ZTE CORP

Data node upgrading method and device for distributed system

The invention discloses a data node upgrading method and device for a distributed system. In the distributed system, one piece of data consists of a plurality of data nodes which are respectively used for the backup of the main copy data of the data and a plurality of pieces of slave copy data. The method comprises the steps: receiving an upgrading instruction, and selecting a first to-be-upgraded node from the plurality of data nodes; enabling a business load of the first data node to be transferred to at least one second data node, wherein the second data node achieves the backup of the slave copy data corresponding to the main copy data in the first data node; and carrying out the offline processing of the first data node, so as to complete the upgrading of the first data node in an offline manner, thereby achieving the smooth upgrading of the distributed system, and preventing the stopping and starting of the data nodes from affecting the business services of the distributed system.
Owner:360 TECH GRP CO LTD

Method for dynamically extending network memory space by virtual file systems technology

The invention relates to a method used for dynamically expanding the network memory space by a virtual file system technique, belonging to the field of network data memory technique; the method comprises the steps as follows: virtual file system software is arranged on the workstation of an application system; the software simulates a hard disk driver on the workstation and achieves the data transfer; data connection is established between the virtual hard disk driver and a memory control server; a plurality of network disks are bound together by the virtual driver. The method achieves the smooth upgrade of the network memory capacity, remains the existing memory equipment and the data memorized in the memory equipment, and can achieve the extension of dynamic capacity without breaking the current operations.
Owner:NEWAUTO SILICON VALLEY VIDEO TECH

Access-in apparatus capable of smooth updating band-width and method thereof

The access device includes main control exchange unit, backboard unit, and user interface unit. User interface unit includes line interface module, management module, module for processing data service, and backboard interface module. There are at least two connections in different speeds between module for processing data service and backboard interface module. The backboard unit includes bus capable of matching to bandwidth of load supporting and connecting in different speed. When bandwidth is needed to upgrade, through the said bus, user interface unit only needs to select one of connections from different speed based on bandwidth type of main control exchange unit to establish communication between user interface unit and main control exchange unit without need of changing user interface unit so as to realize smooth upgrading. The invention protects investment for equipment, and reduces upgrading cost effectively.
Owner:HUAWEI TECH CO LTD

Bank core system and new and old core system data switching method

InactiveCN106294611AAchieve Service AssuranceSolve the problem that the upgrade must be stoppedFinanceSpecial data processing applicationsService guaranteeTransaction data
The invention relates to the technical field of system data switching and discloses a bank core system and a new and old core system data switching method. An account transaction reset server is arranged in a new core system and connected with an online transaction application cluster of the new core system and a core communication cluster of an old core system. The switching method comprises the steps that S1, the account transaction reset server acquires transaction data of the new core system and the old core system respectively and synchronously; S2, processing and calculation are carried out according to the transaction data respectively and synchronously, and processing results of the two systems are verified at the same time; S3, after verification of functional consistency of the two systems is completed, transmission of transaction data to the old bank core system is shut down. Through the new and old bank core system data switching method, smooth upgrading of the new system and the old system can be realized without stopping service, the problem that shut-down must be conducted for core system upgrading is solved, and the 7*24 service guarantee of banks is achieved in a true sense.
Owner:CHONGQING RURAL COMMERCIAL BANK CO LTD

Configurable navigation signal compatible capturing and tracking device

The invention discloses a configurable navigation signal compatible capturing and tracking device. In an initial state, a navigation signal enters a relevant module through an orthogonal frequency offset removing module, and the relevant module performs relevant despreading processing on the navigation signal and then sends the signal to a FFT judging module. The FFT judging module outputs a capture success sign after the judgment is successful, and ends a capture process and starts tracking. Under the condition of capture failure, a step adjustment module selects different search steps according to navigation signal types input by the system, and an adjustment code generation module performs a next capture process. After starting the tracking, an early-middle-late correlator outputs a plurality of paths of correlation values, triggering a peak jump module to perform secondary peak locking judgment. If locked on a secondary peak, the step adjustment module is promoted to perform 1 / 2 chip phase jump. At the same time, a code ring phase discriminator and a filter realize real-time tracking of pseudo codes, and a carrier loop phase discriminator and the filter complete real-time tracking of carrier. The device has advantages of low processing difficulty, good compatibility and good channel consistency.
Owner:BEIJING INST OF REMOTE SENSING EQUIP

Code generation method, device and equipment and storage medium

The invention discloses a code generation method, device and equipment and a storage medium. The method comprises the steps that model metadata is acquired, and the model metadata comprises at least two data types, a professional model, a logic model, a physical model and an incidence relation among the professional model, the logic model and the physical model; storing the model metadata into a meta-model which is of a library structure; obtaining target data in the meta-model through the integrated development environment; according to the technical scheme, the codes are automatically generated according to the target data, automatic generation and smooth upgrading of data service zero code maintenance can be achieved, the application of the framework lays a good foundation for continuous application of an informatization new technology, and sustainable development of an enterprise data service system is guaranteed.
Owner:CHINA NAT OFFSHORE OIL CORP

Vehicular intelligent antitheft tracking alarm system based on BT-IoT (narrow band internet of things)

The invention discloses a vehicular intelligent antitheft tracking alarm system based on BT-IoT (narrow band internet of things). A positioning node is used as a vehicle front-end tracking device to acquire the position of a vehicle front end through GPS (global positioning system) or Beidou satellite; daily trip trajectories are learned through a machine learning algorithm; in case of theft risk,the positioning node judges the position by a displacement sampling timer; GPS data are read once every 300 seconds and are compared with a previous positioning coordinate point; when a coordinate point difference exceeds a specified threshold, it is determined that a vehicle moves; the positioning node reports a movement notification; a control center sends a vehicle movement reminding short message to a user. The NB-IoT is used herein to solve the problems of the prior art, including failure indoor positioning, high equipment cost, high equipment consumption, short battery life and installation complexity; rules of vehicle usage are learned through a machine learning algorithm, so that energy saving is achieved; the trip trajectories are learned to enhance theft prevention.
Owner:HANGZHOU DIANZI UNIV

Carrying network and data transmission method

InactiveCN102025604ASolve the bottleneck of scaleCapacity breakthroughData switching networksNetwork data managementIp addressStructure of Management Information
The invention discloses a carrying network which comprises a plurality of carrying network planes and terminal devices, wherein the carrying network planes form an Internet protocol (IP) carrying network so as to realize routing and forwarding of data messages among the terminal devices, each carrying network plane in the plurality of the carrying network planes is configured with an exclusive serial number, and an independent routing address space is adopted for routing and addressing; and each terminal device adopts a user identifier (UID) as an addressing marker, each UID comprises low level (UID-L) and high level (UID-H), the low level adopts an IP address space, and the high level is used for increasing the number of bits of the UID and extending the address space. The problem that IP addresses are insufficient can be solved through a multi-plane carrying network architecture and the user identifiers of the terminals devices, which are greater than 32 bits, and the solution of separating terminal identifies from the positions can be simultaneously realized through the multi-plane structure, so that the two problems can be effectively solved.
Owner:ZTE CORP

Mixed passive optical network system and transmission method thereof

The invention discloses a mixed passive optical network system and a transmission method thereof in the technical field of fiber optical communication. The mixed passive optical network system comprises an optical circuit terminal, an optical code division multiplexing coder / decoder, an optical multiplexer / de-multiplexer, feeder line optical fiber, a remote node and optical network units, wherein the output port of the optical circuit terminal is connected with the corresponding optical code division multiplexing coder / decoder, and the output of the optical code division multiplexing coder / decoder and the output of another optical code division multiplexing coder / decoder together enter the feeder line optical fiber through the optical multiplexer / de-multiplexer for transmission; after being transmitted to another optical multiplexer / de-multiplexer, optical signals are transmitted into the input port of other optical multiplexer / de-multiplexer; and after coding / decoding, the optical signals enter the remote node to be transmitted to each corresponding optical network unit. In the invention, the optical circuit terminal and the optical network unit structure of the transitional passive optical network does not need changing, the optical code division multiplexing coder / decoder has transparent signal format for the transmitted signals, and transparent capacity expansion and smooth updating of the system can be realized.
Owner:SHANGHAI JIAO TONG UNIV +1

iBeacon power management system and method based on NB-IoT

ActiveCN108391255AAchieve smooth upgradeReduce the difficulty of large-scale deploymentPower managementTransmissionMicrocontrollerE communication
The invention provides an iBeacon power management system and an iBeacon power management method based on an NB-IoT. The system comprises a single chip microcomputer module, and a Bluetooth module, anNB-IoT module and a power module separately connected with the single chip microcomputer, wherein the power module is an independent battery and each hardware module is powered by the power module. The system and the method provided by the invention adopt NB-IoT wireless data transmission of an operator, and support China Mobile, China Unicom and China Telecom networks, without using gateway andrepeater and without deploying a power source and a router, so that the large-scale deployment difficulty is reduced, and the smooth upgrade of the system can be achieved; compared with the traditional technology, the NB-IoT single connection module has relatively lower enterprise cost, and has the advantages of large connection quantity, good signal coverage quality and more stable wireless transmission, and is beneficial to large scale product popularization; the NB-IoT wireless communication technology has the characteristic of low terminal power consumption, and long use of the terminal can be ensured by only needing to be powered by the battery.
Owner:FUZHOU UNIV

NB-IoT (Narrow Band Internet of Things) based school badge positioning system

The invention discloses a NB-IoT (Narrow Band Internet of Things) based school badge positioning system. A positioning node serves as student tracking front-end equipment, the student positioning information is acquired through GPS or Beidou Satellite, and the daily travel track is learned by a machine learning algorithm; if a safety risk exists, the position of the positioning node is judged by adisplacement sampling timer which reads the GPS data once every 60 seconds and compares the GPS data with previous positioning coordinate point; if the difference of the coordinate point exceeds a regulated threshold, the student moves, the positioning node reports a displacement occurrence notification, and a control center sends a student movement prompt short message to a user. By adopting NB-IoT, the system disclosed by the invention solves the problems of inability in indoor positioning, high equipment cost, high power consumption, short battery endurance and limited base station in theprior art, and learns the student movement through the machine learning algorithm so as to save energy; moreover, the system learns the travel track so as to enhance safety protection on the students.
Owner:浙江阿卡云信息科技有限公司

Industrial internet-of-things distributed data access method and database system

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.
Owner:ASAT CHINA TECH

Method and system for obtaining property of single plate

The invention provides a method and a system for obtaining the property of a single plate; the property of the single plate comprises version numbers and port numbers of the single plate; the method for obtaining the property of the single plate is as follows: a configuration file is compiled; a user selects the type and slot position of the single plate; web management reads the configuration file; according to the type of the single plate, the corresponding version number of the single plate is searched in the configuration file; and according to the type, slot position and version number of the single plate, the corresponding version numbers are searched in the configuration file. When the type of the single plate is added or the property of the single plate changes, only modification or addition needs to be carried out in the configuration, modifying the code of the procedure, recompilation or replacement are not needed; and when the configuration file is modified, a web management system does need to be closed, and the smooth promotion is realized.
Owner:GLOBAL INNOVATION AGGREGATORS LLC

Streaming media service method and system, and client

InactiveCN102469072AImprove adaptationAchieve smooth upgrade or downgradeTransmissionService systemClient-side
The embodiment of the invention discloses a streaming media service method, a streaming media service system, and a client. The method comprises the following steps that: the client acquires a media presentation description file which comprises the priorities of coding expression groups of media; selecting coding expression groups according to the priorities of coding expression groups and a current network bandwidth and selecting a coding expression from each coding expression group selected; and according to the address information of the selected coding expression, which is analyzed from the media presentation description file, requesting media segments of the coding expression for a server corresponding to the address information. The capacity of transmitting partial media data of the network under the condition of low network bandwidth is fully utilized, the adaptability to network bandwidth fluctuation can be improved, the steaming media transmission service is smoothly upgraded or degraded, streaming media transmission interruption caused by network bandwidth change is reduced, and the user experience is improved.
Owner:HUAWEI TECH CO LTD

Optical line terminal, optical transceiving module, system and optical fiber detection method

The invention provides an optical fiber detection method. Control is implemented on an OTDR processor by reusing an I2C bus connection between an I2C interface of an RSSI controller and an I2C interface of an RSSI processor on a board of an optical line terminal, so as to implement faulty location for an optical fiber trunk and a distributed optical fiber of an optical fiber network, as well as line analysis and faulty responsibility determination and demarcation for optical fiber branches and optical network units, instead of modifying an original pin of an optical transceiving module on the optical line terminal, so that the board of the optical line terminal supporting OTDR can support an original optical transceiving module supporting an OTDR test and support an original optical transceiving module not-supporting the OTDR test simultaneously, thereby implementing smooth upgrading of the optical transceiving module of the OTDR.
Owner:HUAWEI TECH CO LTD

Expandable broad band terminal cut-in device and its method for cut-in network

This invention relates to an extendible broadband terminal access device and method. The basic access unit is connected with the extended unit via a bus connection unit, so that the service function can be expanded more flexibly. End users can increase related extended units freely according to the needs to ensure the end user to realize new service function. The original terminal cut-in devices can still be used effectively between broadband network and end users to reduce the cost. Besides, the basic cut-in unit is connected with the extended unit by USB interface line.
Owner:HUAWEI TECH CO LTD
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