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43results about How to "Capacity limit" patented technology

Multimedia network and application thereof

The invention relates to multimedia network and the application thereof, on the basis of making fine and concrete analysis on video service demands, applying a truly original thinking mode to improve the existing multimedia network structure comprising network method, network structure and the application thereof, and putting forward that video services in multimedia can be separately processed, by method of delivery, control and communication of video media, according to different video service demands: decomposing or integrating multimedia by municipal-area network (MAN) convergence center switcher, i.e. distributing voice fax, data and video media broadcast TV in access network to the MAN; contrarily, integrating separate media of the MAN and sending them to the access network. And it is simple to process and has high efficiency, and further improves switcher performance. And it solves the problem that large-flow video service development is limited by network structural technique, network equipment technique and equipment capacity bottleneck.
Owner:上海龙林通信技术有限公司

Ultrasonic power source for transducer cascading

The invention relates to an ultrasonic power source for transducer cascading. The ultrasonic power source comprises a rectifier bridge, a filter circuit, a direct-current chopper circuit, a full-bridge inverter circuit, a first impedance stepless matching network, a second impedance stepless matching network, a first transducer, a second transducer, a matching network control circuit, a voltage current sampling circuit, a frequency tracking circuit, and a constant power circuit. The matching network control circuit controls magnitude of matching inductors of the first and second impedance stepless matching networks, accessing an inverter output circuit. Output voltage and current of the full-bridge inverter circuit are connected to the frequency tracking circuit and the constant power circuit through the sampling circuit; the frequency tracking circuit controls full-bridge inversion frequency; the constant power circuit controls magnitude of the output voltage of the direct-current chopper circuit. The ultrasonic power source has the advantages that coaction of the first and second matching network control circuits ensures normal operation of transducer cascading and the traditional single-inverter single-transducer operating mode is changed.
Owner:SOUTH CHINA UNIV OF TECH

Distributed scheduling communication device

InactiveCN101426055AReasonable structureLow configuration and operating costsSpecial service for subscribersModularityInterface circuits
The present invention discloses a distributed scheduling communications device, which includes unit modules and an external transmission bus, wherein, the external transmission bus is connected to each unit module, the unit module is the smallest independently operated intelligence control terminal module, and is the minimized independently operated all-digital program-controlled scheduling telephone switch. The unit module includes an external bus adaptation interface, a program controlled processor, a timing control circuit, a data memory, a program memory, an analog telephone interface circuit, a man-machine interface circuit, a special signal tone circuit, and a sound recording circuit, wherein, the speech data between each telephone interface in the unit module adopts a digital time slot switch, and its data format and signaling is compatible to the digital program-controlled telephone switch. The invention combines the superiority of circuit switching and soft switching, adopts an independently operated unit module to configure according to requirement, so that the invention has advantages of modularization, digitalization, non-bottlenecks, adapting to various transport protocols, low application cost, high system reliability, good apparatus ductibility and so on.
Owner:杭州尊鹏信息科技有限公司

Method for implementing mobile terminal uninterrupted talking between base stations in cluster system

ActiveCN101415253AAchieve the purpose of transmitting information about neighboring base stationsDoes not affect call effectNetwork topologiesControl channelBase station
The invention provides a method for realizing an unceasing call of a mobile terminal across base stations in a cluster system, wherein, the realizing process thereof comprises two parts: one is the stage of establishing the call across base stations and the other is the stage of switching base stations by the mobile terminal. The stage for establishing the call across base stations consists of three processes, respectively the cluster controller process, the networking server process and the mobile terminal process. And whether base stations are switched is decided after the mobile terminal is put into the stage of switching base stations by the mobile terminal in the call process, The method can ensure unceasing call of the mobile terminal across the base stations, lower the difficulties of implementing the system and the mobile terminal, use a control channel to broadcast information of adjacent base stations for switching the mobile terminal across base stations without influencing the voice quality.
Owner:HARBIN HYTERA TECH CORP

Photovoltaic air-conditioning power supply control system and control method based on peak and valley price

The invention relates to a photovoltaic air-conditioning power supply control system and control method based on peak and valley price. The control system includes a DC air conditioner electrically connected with a converter, the converter acquires the peak and valley price information, the power-consuming period of the photovoltaic air-conditioning power supply control system at present is determined based on the peak and valley price information, the electric energy management information corresponding to the power-consuming period is transmitted to the DC air conditioner, the DC air conditioner receives the electric energy management information and the operation mode of the DC air conditioner is determined based on the electric energy management information, and the converter determines the power supply mode of the photovoltaic air-conditioning power supply control system based on the operation mode of the DC air conditioner. Through the combination of the peak and valley price of a power grid and the electric energy management of the photovoltaic air conditioner, the power supply mode of the system is reasonably planned based on the peak and valley price information, so that the electricity charge of users is effectively reduced, and grid-connected power generation can be achieved.
Owner:WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1

Hollow cooler for motor

The invention relates to a cooler for an electric motor, in particular to an air-to-air cooler for the electric motor, and solves the problem that capacity of the electric motor is limited by temperature rise level because the prior air-to-air cooler with a defective structure can not fully cool the electric motor. The air-to-air cooler comprises a cooler shell, evenly distributed air ducts are fixed in the cooler shell, a diaphragm plate positioned at the upper part of each air duct is fixed in the cooler shell, the diaphragm plate is provided with an air inlet and an air outlet relative to positions of an air inlet and an air outlet at the bottom of the cooler shell, the inner wall of a top slab of the cooler shell is fixed with a draught fan positioned at the upper part of the air inlet of the diaphragm plate, and an inner air deflector and an outer air deflector are also fixed in the cooler shell. Through the draught fan, the diaphragm plate and the air deflectors arranged in the air-to-air cooler, the air-to-air cooler fully sucks hot air inside the electric motor into the cooler, enhances circulation of hot air in the electric motor, substantially reduces temperature rise of the electric motor, and overcomes limit of the temperature rise of the electric motor on the capacity of a generator.
Owner:CRRC YONGJI ELECTRIC CO LTD

Preparation method of flexible battery pack and prepared flexible battery pack

The invention discloses a preparation method of a flexible battery pack, and relates to the technical field of battery preparation. The preparation method comprises the following steps: (1) carrying out first packaging on a roll core or a laminated core by adopting an aluminum-plastic film, injecting an electrolyte, and carrying out second packaging after formation, so as to prepare a single battery cell; (2) connecting the single battery cells prepared in the step (1) in parallel, in series or in series and in parallel to form a battery pack; (3) putting the battery pack in the step (2) intoa mold, and injecting a packaging material; after the packaging material is polymerized, obtaining the flexible battery pack, wherein the mold comprises a flexible carrier and a flexible cover plate,the flexible carrier is provided with a groove for accommodating the battery pack, and the flexible cover plate covers the groove. The invention also provides a battery prepared by the preparation method. The method and the battery have the beneficial effects that the flexible carrier is independently processed, and therefore the safety problem of the battery pack due to the fact that the weight of the battery sinks to the bottom and the distribution of the battery is not uniform when the flexible carrier and the battery pack are integrally formed is solved.
Owner:SHENZHEN XINDA NEW ENERGY TECH CO LTD

Preparation method of flexible battery pack and prepared flexible battery pack

The invention discloses a preparation method of a flexible battery, and relates to the technical field of lithium batteries. The preparation method comprises the following steps: (1), carrying out first packaging on a roll core or a laminated core by adopting an aluminum-plastic film, injecting an electrolyte, and carrying out second packaging after formation; (2), preparing a battery pack: arranging the single battery cells injected with the electrolyte in series or in parallel, setting the number of the single battery cells to be more than two, and arranging the adjacent single battery cellsat intervals; and (3), putting the battery pack in the (2) into a mold, then injecting a precursor of an encapsulant, and after the precursor is polymerized at normal temperature, obtaining a flexible battery pack. The invention provides the flexible battery pack prepared by the preparation method. The preparation method has the beneficial effects that by virtue of the preparation method disclosed by the invention, the adjacent single battery cells are arranged at intervals, and the gaps between the adjacent single battery cells are filled with the packaging agent, so that the stress generated by the battery during repeated bending and folding can be effectively released, and the performance of the flexible battery pack after bending is prevented from being attenuated.
Owner:SHENZHEN XINDA NEW ENERGY TECH CO LTD

Digital auendant console

A digital telephone station including several telephone stations, the two computer backup of the connect server, the two computer backup of the applied server, the two network backup and the two electrical source backup. The two network backup is that insert two network cards on each equipment, tie the two network cards together in the interleaving way through software, assign one network IP address, other equipments call on the computer by the IP as the identification. When a passage can't work, it automatically switches onto the other passage. The two computer backup of the connect server uses two independent connect servers, besides it adds the system state monitor module. The two computer backup of the applied server uses the hardware to collocate the disk array, and has the information exchange communications through the software isochronous module. The connect server adopts the SS7 information order to connect in. It uses the DOP keyboard driving mapping technology, and catches the burst signal of the DOP special disk, then maps it onto the standard 101 keyboard. This invention mainly solves the technology problem that the present telephone station can only adapted to the S1240E series hub and can't work after the hub is upgraded.
Owner:SHANGHAI SUSR TELECOM TECH

A block device IO request processing method of a data center

The invention relates to the technical field of a data center. The invention provides a block device IO request processing method of a data center, and comprises the following steps: S1, a user loadsa block equipment drive; S2, according to the access request of the user to the block device, the file system generates a block device IO request to access the block device; S3, the block device responds to and executes the block device IO request. In this invention, By aligning the kernel virtual address space obtained from RAMDISK application to Linux system with a boundary of 2MB, and by finding and breaking the longest unused mapping relationships, so as to establish a dynamic mapping relationship between the physical address space of the block device and the virtual address space of the kernel, thereby effectively reducing the number of RAMDISK requesting the virtual address space from the Linux kernel and breaking the capacity limit of RAMDISK.
Owner:深圳润迅数据通信有限公司

Compound synchronization control method of multi-frequency time division multiple access satellite communication system

ActiveCN101674127AImprove Internet access speedCapacity limitRadio transmissionSatelliteLoop control
The invention discloses a compound synchronization control method of a multi-frequency time division multiple access satellite communication system, which relates to a synchronization control technology in the field of satellite communication. The compound synchronization control method adopts the method which combines auxiliary distance measurement with self-distance measurement, thereby being capable of effectively realizing the rapid initial capture timing of the system and effectively solving the simultaneously network access problem of a large number of earth stations; and the compound synchronization control method adopts the designed method which combines main station auxiliary closed-loop control with self-transmitting and self-receiving closed-loop control, thereby effectively realizing the precise synchronization and keeping timing of multiple types of the earth stations with different transmitting and receiving capabilities. The compound synchronization control method has the advantages of fast network access speed, multiple synchronization control ways, ability of adapting to a plurality of station types for working in a same network, no restriction by the capacity of the network and the like, thereby being particularly applicable to a multi-frequency time division multiple access mesh network system which is based on a satellite transparent transponder for communication.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

DNS server automatic expansion method

The invention provides a DNS server automatic expansion method. The DNS server automatic expansion method is characterized in that 1) a user, domain name, server group mapping relation model is established according to a domain name business rule; 2) a server group monitoring platform is established, and current information of various groups of servers is acquired, and whether a server group capacity reaches the maximum value is determined; 3) when the server group capacity reaches the maximum value, server group configuration is automatically expanded. By establishing the domain name and server group mapping model and the server group monitoring platform, any business operation is automatically mapped to the corresponding server group, and the data update of the monitoring platform is triggered quickly, and therefore the server automatic expansion is realized, and the domain name amount supporting restriction is broken. The key requirements such as rule flexibility (irrelevance to concrete business), simple and easy operation (realized by configuration adjustment), supporting of inclusive and exclusive use of servers, and maximization of server resource rate are satisfied at the same time.
Owner:CHINA INTERNET NETWORK INFORMATION CENTER

Data reading method, data writing method and object file system

The invention discloses a data reading method, a data writing method and an object file system, and belongs to the technical field of computer storage. The object file system comprising a plurality ofobject blocks is constructed, and based on the object file system, when a data reading request carrying a first keyword is received, an identifier of a first object block is obtained by analyzing thefirst keyword, and then data stored in the first object block is obtained according to the identifier of the first object block. In the data reading process, the logic address section of the data does not need to be determined according to the keyword and the mapping relationship between the keyword and the logic address interval and then data is acquired from the logic address section, therefore, the mapping relationship does not need to be stored in the storage device in a centralized manner, and correspondingly, potential safety hazards caused by centralized storage of the mapping relationship do not exist. In addition, the mapping relation does not need to be used for obtaining the data, and therefore the capacity of the object file system is not limited by the capacity of the storagedevice storing the mapping relation.
Owner:HANGZHOU HIKVISION SYST TECH

GGSN capacity overload emergency safeguard method based on IP address pool

The present invention provides a method for guaranteeing GGSN capability at a condition that the load of network operation capacity is high. The method comprises the following steps: measuring a safety operation capacity of GGSN device, the safety operation capacity is a maximum capacity limit which can be obtained by the GGSN device; setting a safety threshold as a base line of the GGSN device based on the safety operation capacity; restricting the capacity of an IP address pool in the safety threshold to guarantee that the number of PDP text subscriber in the GGSN device is in the base line of safety operation; and executing full-service testing after the configuration operation to guarantee the rightness of data modification. The method according to the invention actively restricts the capacity of GGSN access through adjusting the magnitude of capacity of IP address pool at the condition that the load of network operation capacity is high. The method according to the invention guarantees that the device can work normally at the condition of high load and guarantees the service quality of access subscriber.
Owner:CHINA MOBILE GRP GUANGDONG CO LTD

Video frequency data acquisition method employing mobile phone with camera as computer camera

The invention discloses a video data obtaining method of computer cam through photographic handset, which comprises the following steps: A. fabricating the photographic handset into video capture equipment in the computer; B. selecting the fabricated video capture equipment as present video capture equipment; C. sending the video obtaining order from computer to the present video capture equipment; receiving the order in the handset; sending the obtained video data to the computer through wireless connection transmission; D. receiving the video data from handset. The invention realizes the resource share of handset and computer and saves the interface resource of computer, which breaks through the limit of capacity of obtained video data in the handset.
Owner:LENOVO (BEIJING) LTD

Vehicle forepart structure of saddle-riding type vehicle

The invention relates to a vehicle forepart structure of a saddle-riding type vehicle. According to the technical scheme of the invention, even if the large-scale trend of a vehicle is prevented, a power supply socket and an electrical mounting part installed on the power supply socket are prevented from protruding out of the space between legs. The vehicle forepart structure of the saddle-riding type vehicle comprises a leg protection part (20) arranged opposite to a driver. The leg protection part (20) is provided with a power supply socket (30). The power supply socket (30) is provided with an insertion port (30a) for the insertion of the electrical mounting part and a surface (24b) arranged on the driver side of the leg protection part (20). The power supply socket (30) drives the insertion port (30a) to turn towards the outer side of the vehicle along the width direction.
Owner:HONDA MOTOR CO LTD

Computer system with start-free music playing function

The invention provides a computer system with start-free music playing function, comprising an I / O control chip, an audio file processing module with audio files stored, an audio chip, an audio interface, a power supply, and I / O equipment. The power supply provides standby voltage to the I / O control chip, the audio file processing module, and the audio chip. The I / O control chip is used for receiving music playing instruction inputted from the I / O equipment and outputting an audio control signal to the audio file processing module. The audio file processing module performs corresponding processing to the audio file stored therein according to the audio control signal and outputs an audio processing signal to the audio chip. The audio chip performs corresponding audio processing to the received audio file according to the audio processing signal, and outputs an audio signal to the audio interface. The computer system can implement the function of start-free music playing without the need of optical disc driver.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

Compound synchronization control method of multi-frequency time division multiple access satellite communication system

ActiveCN101674127BImprove Internet access speedCapacity limitRadio transmissionCommunications systemLoop control
The invention discloses a compound synchronization control method of a multi-frequency time division multiple access satellite communication system, which relates to a synchronization control technology in the field of satellite communication. The compound synchronization control method adopts the method which combines auxiliary distance measurement with self-distance measurement, thereby being capable of effectively realizing the rapid initial capture timing of the system and effectively solving the simultaneously network access problem of a large number of earth stations; and the compound synchronization control method adopts the designed method which combines main station auxiliary closed-loop control with self-transmitting and self-receiving closed-loop control, thereby effectively realizing the precise synchronization and keeping timing of multiple types of the earth stations with different transmitting and receiving capabilities. The compound synchronization control method has the advantages of fast network access speed, multiple synchronization control ways, ability of adapting to a plurality of station types for working in a same network, no restriction by the capacity of the network and the like, thereby being particularly applicable to a multi-frequency time division multiple access mesh network system which is based on a satellite transparent transponder for communication.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Automatic sand loading device for buildings

The invention relates to the field of filling, in particular to an automatic sand loading device for buildings. The device comprises a sand bin, a rotary table type conveying mechanism, a slide material guide mechanism, a bagging mechanism and a sandbag conveying mechanism, wherein the rotary table type conveying mechanism is built above the sand bin, the slide material guide mechanism is built outside the sand bin, the top end of the slide material guide mechanism can be made to be connected with the rotary table type conveying mechanism through the structural movement of the slide material guide mechanism, the bagging mechanism is installed outside the tail end of the slide material guide mechanism so as to be used for bagging the sand, and the sandbag conveying mechanism is arranged below the bagging mechanism and used for carrying and loading bagged sand materials. Compared with the prior art, the device has the advantages that continuous automatic sand loading is realized, shutdown is not needed when the sand bin is loaded with the sand, so that the sand loading efficiency is effectively improved.
Owner:广西彰毅建设工程有限公司

Double-field quantum digital signature method based on discrete phase random source

The invention discloses a double-field quantum digital signature method based on a discrete phase random source, and the method specifically comprises the following steps: 1, a sender Alice and a receiver Bob generate a final key, specifically comprising steps 11-16, and the sender Alice and a receiver Charlie generate the final key in the same manner; step 2, the sender Alice and the receiver generate a quantum signature sequence, and the receiver Bob and Charlie randomly select half quantum states of the receiver Bob and Charlie for exchange; and step 3, the sender Alice sends the information and the signature to the receiver Bob, the Bob forwards the information and the signature to the Charlie for verification after verification is passed, and the information is received if the Charlie verification is passed. The discrete phase random source is adopted in the two modes in the key generation stage, the problem that a continuous phase random source is difficult to implement in practical application is solved, the performance can reach the performance of the continuous phase random source, and the signature rate and the communication safety are remarkably improved.
Owner:NORTHWEST UNIV

Device and method for backing up Control Device firmware by using BMC (Baseboard Management Controller) Flash

InactiveCN111176902AThe number of controlled terminal signals is reducedReduce capacityRedundant operation error correctionSoftware deploymentEngineeringConnection control
The embodiment of the invention discloses a device and a method for backing up Control Device firmware by using BMC Flash, the device comprises a starting module, a control module and an upgrading module, the starting module is connected with the control module and the upgrading module, and the upgrading module is connected with the control module; wherein the starting module is used for startinga server, the upgrading module is used for firmware upgrading, and the control module is used for switching between firmware starting and firmware upgrading; the method comprises the steps that firmware to be upgraded is temporarily stored in a BMC RAM; the BMC checks whether the signature and content of the firmware to be upgraded in the RAM are correct or not; if the upgraded firmware passes theinspection, outputting a firmware difference gear before and after upgrading; the BMC writes the firmware difference file into a Backup flash; the BMC writes the firmware to be upgraded, which is temporarily stored in the RAM, into a Device flash; and starting the server by using the upgraded firmware by the Control Device. According to the method of the invention, the problems that the functionand the capacity of Device flash in the existing Contourler Device firmware backup circuit are limited, the circuit is complex, and the occupied board card space is large are solved.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

An Ultrasonic Power Supply for Transducer Cascading

The invention relates to an ultrasonic power source for transducer cascading. The ultrasonic power source comprises a rectifier bridge, a filter circuit, a direct-current chopper circuit, a full-bridge inverter circuit, a first impedance stepless matching network, a second impedance stepless matching network, a first transducer, a second transducer, a matching network control circuit, a voltage current sampling circuit, a frequency tracking circuit, and a constant power circuit. The matching network control circuit controls magnitude of matching inductors of the first and second impedance stepless matching networks, accessing an inverter output circuit. Output voltage and current of the full-bridge inverter circuit are connected to the frequency tracking circuit and the constant power circuit through the sampling circuit; the frequency tracking circuit controls full-bridge inversion frequency; the constant power circuit controls magnitude of the output voltage of the direct-current chopper circuit. The ultrasonic power source has the advantages that coaction of the first and second matching network control circuits ensures normal operation of transducer cascading and the traditional single-inverter single-transducer operating mode is changed.
Owner:SOUTH CHINA UNIV OF TECH

A block device io request processing method in a data center

The present invention relates to the technical field of data centers. The present invention provides a block device IO request processing method in a data center, and includes the following steps: S1, the user loads the block device driver; S2, according to the user's access request to the block device, from the file The system generates a block device IO request to access the block device; S3, the block device responds and executes the block device IO request. In the present invention, the kernel virtual address space obtained by applying RAMDISK to the Linux system is aligned on a boundary of 2MB, and by searching and disconnecting the most recently unused mapping relationship, the physical address space of the block device and the kernel virtual A dynamic mapping relationship is established between address spaces, which effectively reduces the number of virtual address spaces that RAMDISK applies to the Linux kernel, and breaks through the capacity limit of RAMDISK.
Owner:深圳润迅数据通信有限公司

Method for repairing flash memory

The invention discloses a method for repairing a flash memory, which comprises the following steps of: entering a redundancy judgment and analysis mode, and selecting data to be written; correspondingly writing the data into a to-be-analyzed storage block in a flash memory, and reading the data from the to-be-analyzed storage block from an initial flash memory address; correspondingly comparing the read data with the to-be-written data, and counting the number of errors of the data; and comparing the number of errors with the number of redundancy, and if the number of errors is greater than the number of redundancy or flash memory addresses and other information in an available state and the number of errors which are not matched with used redundancy is greater than the number of remainingunused redundancy, determining that the flash memory cannot be repaired by adopting redundancy. According to the invention, the cost of redundancy judgment is reduced.
Owner:PUYA SEMICON SHANGHAI CO LTD
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