169results about How to "Fast transmission" patented technology

The invention relates to a method and a system for accelerating file updating and downloading. The method comprises the following steps: adopting a multithreading technique and a fault-tolerant technique in client computers of one or more clients; adopting a cache access technique in a server of a service end; and at each one of the client computers, partitioning the files to be transmitted, thensynchronously staring multiple threads respectively, uploading or downloading one or more data blocks, and adopting the fault-tolerant technique to perform retry according to the time and the frequency. The server establishes a data cache according to the thread number of each one of the client computers and prepares the data blocks larger than the thread number. During the uploading and the downloading, the client computers inform a specific thread of the server to further write the data in the data cache into a permanent storage of the server or read the data out from the permanent storage of the server.

The invention discloses a file updating method, a device and a system. The method includes: a scanning server transmits each original file to a client and each user file uploaded by a client, and stores the original file and the user file respectively in a corresponding list in a preset file repository in a form of directory, and then compares the user file with the original file to obtain the difference, obtains a corresponding file from the file repository based on the difference, and transmits the file to a server so as to complete the updating of the original file in the server. In the method disclosed in the invention, difference updating is only needed to be performed and the updated file can be independently obtained from the file repository to complete the updating to the original files at the server, the purposes of avoiding repeated copy, increasing transmission rate, reducing download time and reducing system consumption are achieved.

The invention discloses a method for transmitting data between a main board and a spray nozzle panel of an ink-jet printer. The method comprises the following steps that: when the data need to be transmitted, a main control panel of the ink-jet printer receives data information sent by a PC, stores the data information in a buffer memory of an FPGA of the main control panel of the ink-jet printer, and transmits the data information to an LVDS transmission module, the data information undergoes parallel/serial conversion to form the LVDS differential signal, the LVDS differential signal is transmitted to an LVDS receive module of the spray nozzle control panel by an LVDS transmission line to form the single-ended signal, the single-ended signal undergoes the serial/parallel conversion, and the data information is stored in the buffer memory of the FPGA of the spray nozzle control panel; and when the data needs to be received, and the signal is stored in the buffer memory of the FPGA from the FPGA of the spray nozzle control panel; and the following steps are the same as the corresponding steps in data transmission. The device for transmitting the data between the main board and the spray nozzle panel of the ink-jet printer comprises an LVDS differential transmission control unit and an LVDS transmission line. The data transmission method has the advantages of high transmission speed, less transmission lines, and low bit error rate.

The invention relates to an IP network application accelerating system for realizing the high-efficiency transmission of data in wide area networks. The interaction times among the wide area networks are reduced and the response time of an application server to a user is increased through optimizing four mainstream application protocols such as HTTP (Hyper Text Transport Protocol), FTP (File Transfer Protocol), SMTP (Simple Message Transfer Protocol) and POP3 (Post Office Protocol 3) in the aspects of object caching, directory prefetching, data authentication and the like; the retransmission of the same data in the networks is avoided through redundant data judgment, data combination and data recovery, and thereby, the effective use ratio of available bandwidth is improved, and simultaneously, the stability and the accuracy of redundant data processing are ensured through the storage management on a data redundancy caching zone; and the actual transmission rate of the data in the widearea networks is improved through dynamically measuring the network bandwidth and regulating the transmitting rate.

A mobile communication system includes a base station and a mobile station. The base station includes a transmitting/receiving section that transmits/receives a packet to/from the mobile station. The base station also includes a base station state updating section that notifies the mobile station of transmission/reception state update information that indicates update of a packet receivable state in the mobile station. The mobile station includes a mobile station transmitting/receiving section that transmits/receives the packet to/from the base station. The mobile station also includes a mobile station state updating section that sets, on the basis of the transmission/reception state update information, one of an active state in which the control information for packet transmission can be received and a suspend state in which the control information for packet transmission cannot be received.

The invention discloses a server and a method for remotely upgrading a programmable logic device thereof, which relate to the field of research and development of server hardware and development of embedded software. The server disclosed by the invention comprises the programmable logic device and a BMC (Baseboard Management Controller), wherein the BMC is used for receiving data transmitted by a client through the Ethernet, converting received data into data of a data format accordant with a standard JTAG (Joint Test Action Group) protocol and burning the converted data into the programmable logic device through a general GPIO (General Purpose Input/Output) port to realize upgrading. In the embodiment of the invention, remote upgrading of the programmable logic device in the server is realized without increasing hardware resources of a server integrated circuit board. The server has the advantages of stable data transmission and high transmission speed.

The invention discloses an image providing system and belongs to the technical field of network communication. The system comprises an image bed server and a terminal device, wherein the image bed server is used for receiving a uniform resource locator (URL), an image quality value and a maximum resolution value of an image to be transmitted which is transmitted by the terminal device, the image is acquired from a local or original server in accordance with the URL of the image to be transmitted, the image is processed and transmitted to the terminal device in accordance with the image quality value and the maximum resolution value of the image to be transmitted, and the terminal device is used for processing and displaying the image in accordance with the image request. By the aid of the technical scheme, the transmission size of the image is reduced, the transmission speed of the image is improved and the image quality is guaranteed on the premise that the experience of user on image viewing is not affected.

A real-time stream media transmission method based on the video frame split includes the following steps: (1) the stream media server is controlled to explore the whole topological structure of the P2P equivalent internet and gain the whole information of receiver nodes in the equivalent internet; (2) the original video data is captured and compressed; (3) each split video frame is numbered in sequence, and a time-stamp and frame type mark is add to package; (4) the video frame is transmitted; (5) a receiver creates a time-limited buffer area to receive the video frame and saves the video frame in the buffer area in the sequence of the time-stamp; (6) the video frame in the time-limited buffer area is verified and adjusted; (7) the receiver decompresses and plays. And a system is formed by a real-time media transmission method. The invention can support a plurality of video compression method and make a fine particle size split on the base of video compression frame level, the video frame after splitting transmits independently in the topological structure of the P2P equivalent internet, and the video frame rate can be adjusted dynamically in net-speed.

The invention discloses a zero returningzero returning control method based on industrial Ethernet bus technologies. The zero returningzero returning control method comprises the steps of: (1) charging a digital controller, (2) starting a zero returning mode, (3) judging whether the present position of a shaft is in a zero returning deceleration zone or not; (4) judging whether the present position of the shaft is at the front of the zero returning deceleration zone or not, (5) enabling a tool slider to return to a zero point at the first speed, (6) converting the fist speed of a tool to the second speed after a zero returning stopper contacts a zero returning switch, (7) receiving a rotating signal of an encoder by a servo motor after the zero returning stopper is separated, (8) decelerating the tool to zero after the rotating signal is obtained, and (9) returning the tool to the prior recorded zero position of a Z pulse signal from the present position. The zero returning control method enhances the accuracy of the zero returning motor of the tool, and reads the position of the tool in real time by utilizing the advantages of the bus data transmission. Moreover, the zero returning control method can realize the rapid zero returningting function of 1000mm/min feeding of the tool, and the zero returning precision is +/- 0.1mu m.

The invention discloses a remote meter reading system based on a power distribution system. The control data processing module is used to upload the data information collected by the data acquisition unit to the on-site communication module of the monitoring center; the monitoring center includes: an account management module that manages according to cloud user accounts, analyzes the collected data information and provides decision-making The intelligent algorithm module is a transmission security module that provides network transmission and encryption and decryption functions. The system obtains electricity consumption information in a timely manner, with fast transmission speed, high accuracy and good real-time performance; the meter reading process is fully automatic, with high sensitivity and anti-interference ability, and the production cost is low, which is economical and reliable.

The invention relates to phenanthrene derivatives that have a structure in formula (I) and formula (II), wherein, A is respectively selected from hetero atoms of nitrogen, silicon, oxygen, phosphor and boric and B is respectively selected from phenyl, naphthyl, phenanthreny base, anthracene base, pyrenyl, heterocyclic radical, polycyclic aromatic base and polycyclic heterocyclic radical that at least have a conjugate base. The phenanthrene derivatives of the invention can effectively prevent aggregation among molecules and can improve the injection efficiency of the carriers (electron/cavity) of components and promote photopeak efficiency when being taken as maternal luminous compound of an organic electroluminescence diode.

The invention discloses an automatic seed sampling machine. The automatic seed sampling machine comprises an automatic seed arranger, a seed conveying device, a machine vision working position, a seed gripper group, a seed gripper group moving device, a laser cutting device, a sample disc moving device, a sample disc conveying and charging-discharging device and a seed disc conveying device, wherein the automatic seed arranger is arranged at the left side of the seed conveying device in a connecting manner; the machine vision working position is arranged at one end, close to the automatic seed arranger, of the seed conveying device; the seed gripper group moving device is arranged above the seed conveying device and is provided with the seed gripper group; the laser cutting device is arranged at one side of the seed conveying device in the moving range of the seed gripper group; and the sample disc moving device, the sample disc conveying and charging-discharging device and the seed disc conveying device are arranged at the downstream positions of the seed conveying device in sequence and in the connecting manner. The automatic seed sampling machine disclosed by the invention has the advantages of wide seed adaptability, slight damage to seeds and relatively high working efficiency.

Provided are a dual mode terminal, a base station, and a content controller, and a content transmission method thereof, and a terminal cradle. A cellular module of the dual mode terminal may receive a content from the base station through a cellular communication. A signal processor may release a compression of the received content and output the content. A short-range communication module may transmit the output content to a short-range terminal using a wideband.

The invention discloses a preparation method of a label-free photoelectrochemical sensor for zearalenone. According to a construction method of a sensing interface, a nano copper-cobalt-iron material,polylysine and nano-rutile type TiO2 mesoscopic crystals are taken as construction elements, and a zearalenone antibody (Ab) is further immobilized; due to the surface plasma effect of the nano copper-cobalt-iron material and the excellent conductivity of the polylysine, the sensing interface can accelerate the photo-induced electron transfer rate of the nano-rutile type TiO2 mesoscopic crystalsand improve photocurrent signals of the nano-rutile type TiO2 mesoscopic crystals; furthermore, the polylysine is rich in amino, thus being conducive to the load of the antibody; when the zearalenoneand the immobilized zearalenone antibody generate an immunoreaction, the photoelectric signals at the sensing interface are significantly weakened due to a steric hindrance effect. A label-free photoelectric sensing method established based on the phenomenon can realize high sensitive detection of the zearalenone having a concentration within a range of 1*10<-6>-10ng/mL.

The invention provides a closed fence drawing method and system. The method comprises the steps that a fence start point is marked on a tile map, and the fence start point is a corrected road point coordinate position on a road; click operations on the tile map are captured, a first optimal path is drawn, and the first optimal path is the optimal path between the coordinate position of each click operation and the coordinate position of the previous click operation; when the click operation is an end operation, the coordinate position of the click operation is used as a fence end point, a second optimal path is further drawn, and the second optimal path is the optimal path between the fence end point and the fence start point; a closed fence formed by the first optimal path and the second optimal path is obtained. The closed fence drawing method and system can enable users to conveniently, flexibly and accurately draw self-defined electronic fences.

The embodiment of the invention provides a data transmission method and transmission apparatus for live video. The method comprises the following steps: establishing a UDP connection with a second client by a first client; collecting audio data and image data of a first anchor; and sending the audio data and the image data of the first anchor to the second client through the UDP connection by using a WebRTC protocol. The first client sends the audio data and the image data of the first anchor to the second client through the UDP connection by using the WebRTC protocol, the UDP connection is oriented to non-connection, the transmission rate is high, the transmission delay difference of the audio data and the image data is reduced, and the interactivity between two anchors is improved.

The invention is applicable to network communication field, and provides a method and a system for sending cross-domain long-distance emails. The method comprises the following steps: receiving emails sent to external domains from the local domain by the user; and transferring the emails to external domains from the local domain through an internal network. In the embodiment of the invention, since the internal network is adopted for transmitting cross-domain long-distance emails, the transmission speed of the emails can be greatly improved, and the transmission stability of the emails is ensured.

The invention provides a feces analyzing device which comprises a turntable assembly. The turntable assembly comprises a turntable. A plurality of detection card case placement parts are uniformly distributed on the turntable, a detection card case is placed on each of the detection card case placement part, and detection cards are successively placed in the case bodies of the detection card cases from top to bottom; a card pulling assembly is arranged on one side of the turntable assembly, the detection cards are pulled out through the card pulling assembly and penetrate through a guide slot of a guide assembly to arrive at a sample application position, the sample application position is arranged on the front portion of a card conveying tray of a card conveying assembly, a specimen is subjected to sample application at the sample application position of each detection card, each detection card can be transferred to a reaction rack of a reaction rack assembly through the card conveying assembly and a rack feeding assembly to react, the reaction rack has a plurality of detection card placement parts, the card conveying assembly is located on one side of the reaction rack assembly, a photographing assembly is arranged on the other side of the reaction rack assembly, and each detection card can be pushed into a photographing tray of the photographing assembly through a rack feeding arm of the rack feeding assembly.

The invention provides an assembled follow fixture system and relates to the technical field of automobile production line equipment and machines. The assembled follow fixture system comprises lift equipment and dual-layer transmission equipment. The lift equipment is arranged on the two sides of the dual-layer transmission equipment. Each set of lift equipment comprises a lifting device and a lifting transmission device, wherein the lifting transmission device is arranged above one side of the lifting device. Guide wheels are arranged on middle transverse rods of a transmission frame. A motor limiting conveying device is arranged above the guide wheels. Second guide rails are arranged on the two sides of the motor limiting conveying device. A transmission trolley is connected above the transmission frame through a lifting connecting frame. The two sides of the transmission trolley are slideably connected with first guide rails through rollers. Y-direction positioning blocks are arranged on one side of the first guide rails. X-direction positioning blocks are arranged on the external side of a transverse rod on one side of the transmission trolley. The assembled follow fixture system has the advantages that the transmission speed is fast, the reciprocating movement accuracy is high, the structure is simple and compact, various fixtures with equal weight can be switched, the occupied space is small, the system is simple to maintain, the standardization level is high and the system is convenient to use.

A computer-readable recording medium storing a data communication program capable of transmitting desired data quickly. The mobile terminal (computer) has the following functions: A data accumulating section accumulates accumulation data to be uploaded to a server 7. A transmission data-generating section generates transmission data that is to be transmitted to the server for making the inquiry and has the accumulation data added thereto. A determination section determines whether or not the mobile terminal is in a state in which the transmission data can be transmitted to the server. A communication scheduler permits a data communication section to transmit the transmission data to the server based on the result of determination of the determination section. The data communication section transmits the transmission data to the server in response to permission of the communication scheduler.

The invention discloses a seismic wave advanced detection system embarked on a tunnel boring machine and a method thereof. The seismic wave advanced detection system embarked on a tunnel boring machine includes a pilot sensor, wherein the pilot sensor is fixed on a cutterhead of the tunnel boring machine, and a data receiver of the pilot sensor is arranged in a man cabin at the back of the cutterhead of the tunnel boring machine; the pilot sensor and the data receiver of the pilot sensor perform data communication in a wireless mode; the data receiver of the pilot sensor and a host of the detection system perform data transmission through a cable of the pilot sensor; a plurality of three-component geophones are arranged in a certain range at the back of the cutterhead of the tunnel boring machine, are divided into two groups to be arranged at the walls of two sides of the tunnel, and can perform data transmission with the host of the detection system through a cable of a detector; aplurality of hydraulic focuses are arranged at the back of the cutterhead of the tunnel boring machine, and are connected with a hydraulic focus control system; and after the host of the detection system receives a trigger signal from the hydraulic control system, synchronous data acquisition of all the three-component geophones can be realized through a time sensitive network.

The invention provides an acceleration method for mass small document IO operation transmission in a distribution type document system. The method comprises the steps of buffering a large amount of small document operation at a sending end, executing flow aggregation, packing small documents into a single large document, transmitting the single large document to a receiving end in one time, analyzing the large document at the receiving end, obtaining the IO operation of each small document, and executing the writing operation of relevant document. The method greatly reduces the network interaction times and improves the transmission speed of mass small document IO operation.

The invention relates to a multiattribute transport protocol (MATP) for a communication equipment management system. The frame structure of the protocol comprises a frame header and an attribute data package, wherein the attribute data package comprises an attribute common header and an attribute data group; the attribute data group comprises N attribute data packages; N is not less than 1; and each attribute data package comprises an attribute header and attribute data. The MATP has the following beneficial effects: the protocols are a set of presentation layer and application layer protocols based on a transmission control protocol/internet protocol (TCP/IP) session layer and the protocols are formulated for network equipment management; the protocols are used for a network management system (NMS) to interact with all the network equipment in the same network so that the NMS can achieve the aim of conveniently and flexibly managing all the network equipment in the same network; the protocols are only related to the TCP/IP and can operate across the operating system; and the protocols have the advantages of high transmission rate, high reliability and efficiency, strong expansibility and simple structure.

Provided are a speech control system and a speech control method. The speech control system comprises a landing service node, a user cloud server and a user smart home node, wherein the landing service node is adapted to respond to a number request sent by a communication operator server and look up the user cloud server corresponding to a number associated with the number request so as to establish a communication access between a mobile terminal and the user cloud server, and the number request is initiated by the mobile terminal. The user cloud server is adapted to receive speech data from the mobile terminal through the communication access, recognize the speech data and generate a speech recognition result. The user smart home node is adapted to receive the speech recognition result from the user cloud server and control the mobile terminal matched with the speech recognition result. The speech control system can effectively achieve speech control of a feature phone to mobile terminals in a smart home and can also improve the speech control speed.

The invention discloses a nuclear power hydrogen concentration detecting device. The device can perform real-time online monitoring on hydrogen concentration at a plurality of points in a confined space of a nuclear power station. The device consists of an optical fiber-based hydrogen concentration sensor array, a standard air chamber, an optical coupler, a light source, a photoelectric converter, a signal processing unit and a computer output unit. The hydrogen concentration sensor array is arranged in a containment, and other equipment is positioned on an instrument operating platform outside the containment. The optical fiber sensing technology-based nuclear power hydrogen concentration detecting device can simultaneously meet the requirements on safety, real-time online detection and noninterference to the detected environment, has the characteristics of small volume, light weight and high flexibility, and is particularly suitable for the nuclear power station containment environment requiring light load and small installation space. The nuclear power hydrogen concentration detecting device has the advantages of chemical corrosion resistance, suitability for severe environment temperature and no electromagnetic interference, and is suitable for remote large-scale multipoint multiplexing detection.

The invention discloses a CCD (Charge Coupled Device) suitable for an optical fiber gyro reeling machine, which comprises a base component, two horizontal guide rails, a sliding beam component, a slide rail beam component, a lens holder component, a lens mount and a lens, wherein the base component is in a framework type structure; two beams which are mutually arranged in parallel are horizontally arranged on the base component; the two horizontal guide rails are arranged on the two beams of the base component; the sliding beam component is in a framework type structure and is movably arranged on the two horizontal guide rails; the slide rail beam component is arranged at the front end of the sliding beam component; the slide rail beam component is perpendicular to the two horizontal guide rails in the horizontal direction and can transversely slide at the front end of the sliding beam component; the lens holder component is arranged on the slide rail beam component; the lens mount is arranged on the lens holder component and can vertically slide on the lens holder component; and the lens is arranged on the lens mount. The device disclosed by the invention can freely adjust the position of the lens in the three-dimensional direction, thereby conveniently observing the reeling of the optical fiber gyro reeling machine.

The invention discloses a data acquisition method applicable to a new type low orbit satellite platform. The method is based on a 1553B bus and searches a data transmission request sent by a remote terminal through a bus controller so as to finish the data acquisition function. Firstly, a remote control terminal finishes preparing the data needed to be sent and sends the data transmission request to the bus controller; then the bus controller searches the transmission request of the remote terminal and takes away corresponding data from the remote terminal according to the request content, finally, the bus controller sends data transmission finish confirmation to the remote terminal. The method of the invention ensures that the data transmitted by the remote terminal is complete, prevents telemeasuring data errors resulted from not updating the data timely, and simultaneously improves the utilization rate of the bandwidth usage efficiency of the bus.

The invention provides an integrated two-layer reverse energy-saving tunnel kiln, comprising a kiln body, transmission rolls and electric furnace wires, wherein the transmission rolls and the electric furnace wires are arranged in the kiln body. The integrated two-layer reverse energy-saving tunnel kiln is characterized in that the electric furnace wires are uniformly arranged in a mode of being close to the top surface and the bottom surface of the kiln body; a horizontal clapboard is additionally arranged to divide the space in the kiln body into an upper layer and a lower layer horizontally; the transmission rolls are respectively arranged along the proceeding direction in a mode of being close to the bottom of each layer; and the rotating directions of the two layers of the transmission rolls are reverse. The integrated two-layer reverse energy-saving tunnel kiln is characterized in that single-layer transmission is changed into two-layer transmission, the transmission directions of the two layers are reverse, the two layers are separated by the clapboard, so the annealing heat of the upper-layer furnace and the annealing heat of the lower-layer furnace are respectively used as preheating sources for the upper-layer furnace and the lower-layer furnace, and materials are inout and output from the two ends of the tunnel kiln respectively. Therefore, integrated two-layer reverse energy-saving tunnel kiln saves energy, improves efficiency, saves labor and materials as well as space, and has excellent working performance.

The invention provides an EM-MWD relay transmission system. The EM-MWD relay transmission system comprises drill rods, a drill tool, an insulation module, an electromagnetic signal transmitting module, an electromagnetic signal receiving module and one or more relay short-circuit modules, wherein the relay short-circuit modules are arranged among the drill rods, and spacing distances of more than one relay short-circuit modules can be set on the premise that signal strength of the electromagnetic signal receiving module during signal receiving is larger than or equal to a threshold value. The EM-MWD relay transmission system prolongs an EM-MWD transmission distance through relays. If the transmission distance is not enough in the EM-MWD process while drilling, relay short circuits can be increased to continue to perform transmission. In addition, the transmission speed can be improved by improving frequency, even though improved frequency likely enables an original EM-MWD transmission distance to be shortened, the whole transmission distance is not limited by adopting the relays.

The tire curing group control system, including the vulcanizer capsule and the capsule outside the entrance temperature, pressure sensors, sensor temperature and pressure connecting AI controller. Computer data interface via RS-485 with the vulcanization of AI-meter connections, there are various control points computer address bus and curing system temperature and pressure monitoring software. Computer data interface data sent on the bus conversion receiver signal interface converters. Operation of the bus by AI instrument data transmitted to the PC. PC will be at the control point data bus addresses respectively processing, recording and preservation. Address options available bus temperature and pressure points on the current value or date to choose its historical curve. Computer storage can be set and the temperature and / or pressure of the warning to alert the police and value of computer records. Bus Control of the system by more than curing machine, easily building-control systems, real-time monitoring and historical records stored query; convenient control, performance, stability, improved level of automation.