147results about How to "Meet the transmission" patented technology

The invention belongs to the field of aviation electronic technology, and discloses a method for generating a static scheduling table of a time-triggered (TT) service. The method comprises the following steps: equally dividing a basic cycle of TT Ethernet into a plurality of time slots, wherein each time slot satisfies the transmission of a maximum Ethernet frame at a one-hop link; and determining the scheduling order of tasks according to the cycle size of TT tasks and the length of data frames, performing scheduling priority ranking for the TT tasks, sequentially arranging a leftmost transmission time slot for each hop of links of each TT task on the transmission path, minimizing the length of a time interval occupied by the TT service, and ensuring that all the TT tasks are transmitted orderly without conflicts. According to the method disclosed by the invention, the scheduling problem of the TT service can be solved, and each terminal node can transmit all the TT tasks orderly without the conflicts; the waiting delay of ET services can be reduced, and the real-time performance of the ET services can be improved; and meanwhile, the saved network bandwidth can be applied to the transmission of more services, and the utilization rate of network links can be increased.

The invention relates to a realization method in which a Relay support cellular system can effectively avoid the interference of uplink and downlink, and a device thereof as well as a solution which allows the interference of the uplink and the downlink to be introduced by the system due to coverage expansion. The invention is realized by a special design of a frame structure and the special design comprises a transmission order of four system links in the frame structure which are a downlink relay link L1, a downlink access link L2, an uplink access link L3 and an uplink relay link L4, and a guard space of a transfer point of the uplink and the downlink. When the transmission order of the four links of the frame structure is L1, L2, L3 and L4, a multiplying adjustment is processed on the required guard space of the transfer of the uplink and the downlink simultaneously allowing for path propagation delays between BS and RS as well as between RS and UE, namely offsetting the propagation delay between RS and UE; when the transmission order of the four links of the frame structure is L1, L2, L4 and L3, the guard space of the transfer of the uplink and the downlink only allows for the propagation delay between BS and RS while the propagation delay between RS and UE can be guarded by idle time which is caused by a sending to BS in advance from RS.

The invention discloses a nanofiber vascular prostheses and a preparation method. The preparation method is as follows: mixing the solution of gelatin and glacial acetic acid with the aqueous solution of a crosslinker evenly to pre-crosslink the solution of gelatin and glacial acetic acid, adding heparin sodium aqueous solution to prepare spinning dope and collecting the formed fibers on a collecting roll by using the electrospinning process to form a nanofiber nonwoven membrane tube; dissolving polyurethane into the mixed solvent of tetrahydrofuran and N,N-dimethylformamide to prepare polyurethane spinning dope and continuously collecting the formed fibers on the collecting roll which has collected the nanofiber nonwoven membrane tube by using the electrospinning process; and taking off the nanofiber nonwoven membrane tube covered by the polyurethane fiber nonwoven membrane tube structure from the collecting roll and then soaking the nanofiber nonwoven membrane tube into the aqueous solution of a post-crosslinker to carry out post-crosslinking treatment, thus preparing the nanofiber vascular prostheses. The inner layer of the vascular prostheses of the invention can improve the blood compatibility and the outer layer has biological stability and can improve the physical and mechanical properties.

The invention discloses a system and a method for transmitting data in one direction. The system for transmitting data in the one direction comprises a transmission module connected with an outer net, a receiving module connected with an inner net, and light split equipment through which the two modules are connected, wherein the transmission module also comprises a transmission optical fiber network card for transmitting data to the light split equipment; a data transmission port of the transmission optical fiber network card is connected with the input end of the light split equipment and a data receiving port is connected with an output port of the light split equipment; and the receiving module also comprises a receiving optical fiber network card for receiving data, and a data receiving port of the receiving optical fiber network card is connected with the other output port of the light split equipment. The system has a simple structure, is easy to use, and not only guarantees the complete isolation of the inner net and the outer net, but also can realize the linear high-speed transmission of data, and guarantee safe and reliable data transmission.

The invention provides a priority strategy-based signal routing conversion method, which comprises the following steps of: S1, accessing Ethernet network nodes into a central gateway through an Ethernet interface, and accessing CAN network nodes into the central gateway through a CAN interface; and S2, enabling the signal data connected with the Ethernet to flow into a central gateway through an Ethernet network, judging the priority of the received signal data by the central gateway, classifying the signal data into a queue according to the priority, and then forwarding the signal data with different priorities according to a preset rule. Cache allocation can be carried out on the dynamic cache space at the pre-allocation moment, and the size of the dynamic cache can be adjusted accordingto the size of the signal data and the priority in the preset time period. Under the condition of ensuring that priority data can be transmitted preferentially, the problem of packet loss based on data transmission between a vehicle-mounted Ethernet network and a CAN network is reduced to the maximum extent.

The invention discloses a method and system for establishing data connection. The method comprises the following steps: a server receives the connection data of a first device and a second device, sends the connection data of the first device to the second device and sends the connection data of the second device to the first device; the first device and the second device separately judge whetherthe other is in the same local area network according to the received connection data; when the judgment results of the first device and the second device are both true, the server separately configures the first device and the second device as a server end and a client end which are in IP connection and separately sends configuration information to the first device and the second device; and theserver end monitors connection, and the client end initiates connection and establishes data connection between the first device and the second device. The system comprises the server, the first device and the second device. The scheme provided by the invention can be used to realize the automatic and high-speed connection between two devices.

The invention relates to a radio frequency optical fiber transmission optical workstation for two-way network transformation of a cable television, which belongs to the field of the cable televisions. The radio frequency optical fiber transmission optical workstation comprises a wavelength division multiplexer, an optical module, a downlink signal optical automatic gain control circuit, a downlink signal amplification circuit, an uplink signal amplification circuit, a radio frequency switching control circuit, an uplink optical transmitter control circuit, a mixing circuit and a data collection circuit. The radio frequency optical fiber transmission optical workstation has the advantages of small noise convergence, high bandwidth, property of being in line with IP-lization, low transformation cost per household and high reliability, and is convenient for upgrading and expansion.

The invention discloses a UAV system and a control method thereof. The UAV system is used to execute a task within a task area, and the task area is divided into subareas; the system comprises UAVs, ground stations and a control platform, the ground stations are in one-to-one correspondence with the subareas, and the ground stations are in communication connection with the UAVs in one to one correspondence; and the ground stations obtain an execution instruction from the control platform, and the ground station which obtains the execution instruction controls the corresponding UAV to execute the task in the corresponding subarea according to the execution instruction. The single UAV includes the bandwidth with the corresponding ground station independently, transmission of large data amount can be satisfied fully, flight subareas of the UAVs are relatively small, and hang time is longer; and a UAV task can be realized in a wider task area as wide-area monitoring in a better way.

The invention discloses a 1.2m feedback full-automatic portable emergency satellite communication antenna servo system which comprises a portable box, an antenna structure unit and an antenna control unit, wherein the antenna structure unit and the antenna control unit are arranged in the portable box; the antenna structure unit comprises an antenna mount, a six-section carbon fiber antenna main reflection surface and a feed source component support frame, wherein the six-section carbon fiber antenna main reflection surface and the feed source component support frame are connected to the antenna mount, an antenna auxiliary reflection surface is installed at the end part of the feed source component support frame, a feed source component support plate is installed in the middle of the feed source component support frame, a feed source component is installed on the feed source component support plate, a direction drive device and an elevation drive device are arranged in the antenna mount, and the feed source component comprises a feed horn, a polarizer, a duplexer and a polarization power transmission mechanism. The 1.2m feedback full-automatic portable emergency satellite communication antenna servo system is reasonable in design, convenient in implementation, increased in communication bandwidth, expanded in communication capacity, high in degree of intelligence and working reliability, convenient to carry and good in use effect, provides communication guarantee for the emergency handling and is convenient to popularize and apply.

The invention relates to the field of intelligent transportation forecasting and in particular relates to a short-term traffic flow forecasting method. The short-term traffic flow forecasting method comprises the steps of 1), collecting data of flows and speeds of historical records and presetting traffic states according to combinations formed by the flows and the speeds; 2), building a forecasting model; 3), inputting the traffic states of two historical moments x(t-1) and x(t) corresponding to actual forecasting traffic states, scheduling the forecasting model for forecasting and outputting a forecasting state; and 4), recording an actual state, calculating an error between the forecasting state and the actual state, and recording and saving an error result. The short-term traffic flow forecasting method has the beneficial effects that the method is low in calculation complexity and capable of reflecting road condition changes in real time; meanwhile, the historical data of 10 minutes near the future moment are only taken into account by the algorithm; the method is good in real-time performance; a 5-minute forecasting time duration meets delay of transmission and processing and is applicable to real-time display of a traffic induction screen; the forecasting model is simple and quick to build, applicable to traffic road conditions with various complexities and high in forecasting precision.

The invention relates to the technical field of third-generation (3G) communication, and provides a 3G remote emergency direction system, which comprises a 3G intelligent recorder, an information and direction center (IDC) machine room unit, a headquarter monitoring center unit, a mobile monitoring center unit and a WEB monitoring center unit. The 3G remote emergency direction system can track and record the whole law enforcement process of a front-end police officer and timely transmit the environment and actual conditions of a law enforcement site in form of video and audio to make a direction center accurately and effectively direct the police officer and improve law enforcement efficiency.

The invention provides a high-frequency resin composition and application. Preparation materials of the high-frequency resin composition comprise: unsaturated polyphenylene ether resin, styrene-butadiene resin, unsaturated polybutadiene resin, bismaleimide and an initiator. The high-frequency resin composition prepared according to the above materials has good comprehensive properties such as lowdielectric loss, low dielectric constant, high peel strength and high bending strength, and not only satisfies the transmission of high-frequency signals, but also meets property requirements for machining, mechanical supporting and the like of a plate made from the high-frequency resin composition.

The invention relates to a logistics distribution cloud management system comprising a client terminal module which is for generating client order information and sending the client order information to a cloud server, and distribution information is received; an order processing module which is for calling the cloud server to process and store the client order information and send the client order information to an order distribution module; and the order distribution module which is for calling the cloud server to send the distributed order information to a distribution terminal, the distribution terminal finishing the distribution and sending the distribution information to a client terminal module. The cloud server is utilized to process the client distributed order information and intelligently distribute the distribution information to the most efficient distribution terminal to carry out distribution service, thereby improving order processing efficiency, reducing distribution time, and reducing distribution operation cost.

The invention discloses a drilling machine integrated loop network communication control system based on a PLC. The drilling machine integrated loop network communication control system based on the PLC comprises a master operational console, wherein the master operational console is respectively connected with a master operational console PLC station and a client end, the client end is connected with a network NET2 and a network NET3 simultaneously, the network NET3 is connected with a CCTV controller, the network NET2 is connected with an auxiliary server, a database server and a master server, the network NET3 is connected with a network NET5, the network NET5 is connected with a master long-distance monitoring station, the network NET2 is connected with a network NET4, the network NET4 is connected with a master long-distance monitoring station, the master operational console PLC station and the master server are further connected with a network NET1, and the network NET1 is respectively and correspondingly connected with a first PLC control station and a 400H redundancy control station. The drilling machine integrated loop network communication control system based on the PLC achieves automation, intellectualization and networking of the control system, and is good in real-time performance and stable and reliable in communication service.

The invention discloses a preparation method of a polymer-added composite cathode and application of the composite cathode in a solid-state battery. The composite cathode is characterized by comprising a composite cathode pole piece and a solid-state electrolyte material, wherein the composite cathode pole piece is prepared from a cathode active material, an additive, a conductive agent and a binder; the solid-state electrolyte material is prepared from a high-molecular polymer with a long chain segment, lithium salt conducting a coordination reaction with the high-molecular polymer, and a fast ion conductor. The invention also discloses a preparation method of the polymer-added composite cathode applied to a solid-state lithium battery. The preparation method is characterized by comprising the following steps: preparing a cathode pole piece, preparing a solid-state electrolyte membrane. The preparation method disclosed by the invention has the following advantages: the arrangement regularity of polyoxyethylene molecular chains is damaged by the effect among the molecular chains of several polymers, the glass-transition temperature is lowered, the crystal formation is inhibited, and the ionic conductance is enhanced.

The invention discloses a low voltage power line data communicating system and method, where host station device is coupled with low voltage power line and connected with data network, which acts as a gateway to transmit data between the low voltage power line and the data network, including data transmission of user terminals between power line interface and user data interface. It also uses relays, coupled with the low power line between the host station device and each user terminal to relay data signal transmitted by the host station device, and including a first communication device and a second communication device. It effectively increases system communication distance, thus realizing high speed data information transmission on low voltage power network in the same range of distributing transformer.

The invention provides a manufacturing process of a back-drilled zero residual copper pile on a PCB substrate. The specific process includes the following steps: preparing an N-layer circuit board, wherein N>=4; longitudinally presetting A groups of disconnecting layers at a selected position, wherein A>=1; placing a soluble material on upper and lower sides of the disconnecting layers; pressing araw material in the step a into a PCB semi-finished product; mechanically drilling the PCB semi-finished product; coating the drilled holes with a polymer conductive film; dissolving the soluble material to remove to the polymer conductive film on a soluble sheet; electroplating and metallizing the remaining polymer conductive film through electroplating; and subjecting the semi-finished productin the f step to pattern plating and film stripping and etching. In the existing design scheme, through-holes that transmit a single signal are formed through mechanical back-drilling, and has a certain length of residual copper pile which interfere with signal transmission on high speed PCBs. The process can form multi-functional holes through a chemical method, a zero-residue copper pile can beachieved, which can meet the signal transmission of the high-speed PCBs. The method can be used to make back holes or multifunctional holes, and the same hole can transmit signals of two or more networks.

The invention provides a data encapsulation device and a method thereof used for multimedia broadcast / multicast service data. The data encapsulation device comprises a classification and restriction module used for classifying multimedia broadcast / multicast service data into at least one data type according to service application and restricting the data structure of the multimedia broadcast / multicast service data according to data types; an identification and description module used for identifying different multimedia broadcast / multicast service data according to data volume identifications and describing the multimedia broadcast / multicast service data according to the restricted data structure; and a data encapsulation module used for encapsulating the described multimedia broadcast / multicast service data in different segments and mapping the encapsulated multimedia broadcast / multicast service data to a data unit of a transmission layer for transmission. The data encapsulation device can meet the requirements for transmitting various service data and supporting various complex service applications, and can support one information channel for transmitting various media data of service application.

The patent application discloses an Internet of Things-based pallet logistics management system comprising at least one storehouse and at least one main station which corresponds to the store house in a one to one manner, the storehouse and the main station are equal in quantity, at least one pallet and substation are arranged in each storehouse, a detection device used for detecting a usage state of the pallet and an electronic label electrically connected with the detection device are arranged on the pallet, the electronic label on the pallet is wirelessly connected with a corresponding substation, the substation is in communication with the main station, and data received from the substation is transmitted to a management platform by the main station. Via adoption of the pallet logistics management system disclosed in a technical solution of the invention, all kinds of usage data of the pallet can be uploaded to the management platform, all kinds of management statement reports can be completed via information accumulation calculation by the management platform, usage conditions of all pallets can be reflected in real time accurately, pallet circulation processing efficiency can be greatly improved, and man-made operation errors can be reduced to a maximum degree.

The invention relates to an intelligent building monitor system and an intelligent building monitor method. The intelligent building monitor method includes that a resident house monitor subsystem collects environment parameter information and household appliance status information of a resident area, and then transmits the environment parameter information and the household appliance status information of the resident area to a background management center in wireless transmission mode; a communal facility monitor subsystem collects environment parameter information and communal facility status information of a public area, and transmits the environment parameter information and communal facility status information of the public area to the background management center in wireless transmission mode; the background management center stores the environment parameter information and the household appliance status information of the resident area and the environment parameter information and communal facility status information of the public area into a database; information interaction is performed between a resident client end and the background management center in B / S (browser / server) mode, and the resident client end can inquire data of the resident house monitor subsystem and the communal facility monitor subsystem in the database. The intelligent building monitor system and the intelligent building monitor method use a B / S framework, and thereby facilitate system upgrades and post-maintenance, and furthermore are low in cost.

The invention provides a deep hole laser cladding head. The deep hole laser cladding head comprises a base, a cladding head middle section and a machining head section, wherein the base is provided with an optical fiber connector, a collimating lens and a focus lens; the machining head section is provided with a reflecting mirror and a protective glass; the cladding head middle section comprises a water pipe, a gas pipe, a powder pipe, a line pipe, multiple fixing frameworks, an inner thin-walled sleeve and an outer thin-walled sleeve. The fixing frameworks are in a circular ring shape. A main body of each fixing framework is provided with a first water hole, a first gas hole, a first powder hole and a first line hole which correspond to the water pipe, the gas pipe, the powder pipe and the line pipe correspondingly. The water pipe, the gas pipe, the powder pipe and the line pipe penetrate through the corresponding first water holes, the corresponding gas holes, the corresponding first powder holes and the corresponding first line holes in the fixing frameworks in sequence. The inner thin-walled sleeve penetrates through inner holes of the fixing frameworks in sequence. The outer thin-walled sleeve is connected to the outer surfaces of the fixing frameworks in a sleeving mode. The deep hole laser cladding head can be suitable for cladding of inner holes, with the diameter being 100-200mm and the diameter ratio greater than 40, of pipe fittings.

The invention discloses an information transmission method and device and a mobile terminal and belongs to the technical field of the mobile terminal. The information transmission method includes that when the mobile terminal receives a triggering command, sending a starting command to an external device through an earphone interface, and enabling the external device to transmit information to the mobile terminal; receiving the information transmitted from the external device through the earphone interface. According to the information transmission method, the starting command is sent to the external device through the earphone interface of the mobile terminal, the information transmitted from the external device is received through the earphone interface, and then a new way is provided for transmitting information between the mobile terminal and the external device; when a USB interface is taken up, or the requirement on the information transmission speed rate is low, the earphone interface is used for transmitting the information, the resource occupation rate is low, and the resource is saved.

The invention discloses a nanofiber vascular prostheses and a preparation method. The preparation method is as follows: mixing the solution of gelatin and glacial acetic acid with the aqueous solution of a crosslinker evenly to pre-crosslink the solution of gelatin and glacial acetic acid, adding heparin sodium aqueous solution to prepare spinning dope and collecting the formed fibers on a collecting roll by using the electrospinning process to form a nanofiber nonwoven membrane tube; dissolving polyurethane into the mixed solvent of tetrahydrofuran and N,N-dimethylformamide to prepare polyurethane spinning dope and continuously collecting the formed fibers on the collecting roll which has collected the nanofiber nonwoven membrane tube by using the electrospinning process; and taking off the nanofiber nonwoven membrane tube covered by the polyurethane fiber nonwoven membrane tube structure from the collecting roll and then soaking the nanofiber nonwoven membrane tube into the aqueous solution of a post-crosslinker to carry out post-crosslinking treatment, thus preparing the nanofiber vascular prostheses. The inner layer of the vascular prostheses of the invention can improve the blood compatibility and the outer layer has biological stability and can improve the physical and mechanical properties.

The invention discloses a distributed tgt communication optimization method, device and apparatus and a storage medium, and the method comprises the steps: creating three queues or linked lists for asending thread, and respectively and correspondingly establishing data, disconnection data and message sending data; when the main thread of the tgt calls a corresponding function, constructing a corresponding message type, adding the message type into a corresponding queue or chain table, and sending a reminding character to the sending thread through a pipeline; and after the sending thread receives the reminding character, taking out data from the corresponding queue or linked list through an asynchronous event callback mechanism to execute corresponding operation. Connection establishment,connection disconnection and message sending functions are separated. Connection and event sending are asynchronously processed. A message communication mode is optimized in the mode that the threaddata are maintained through the queue or the linked list, the pressure of the main thread can be reduced, the communication performance is improved, and transmission of large cluster big data is met.

The invention provides a method and device for transmitting HARQ-ACK information, electronic equipment and a storage medium. The method comprises the following steps: a terminal determines a time unitwhere PUCCHs for transmitting HARQ-ACK are located according to a time slot length of a time slot where a physical uplink control channel PUCCH for transmitting HARQ-ACK is located and the number ofPUCCHs in the time slot; and the terminal transmits the HARQ-ACK based on the determined time unit where the PUCCH for transmitting the HARQ-ACK is located. And a corresponding hybrid automatic repeatrequest (HARQ) timing relationship, according to the method for transmitting the HARQ-ACK information provided by the invention, a proper HARQ-ACK information transmission form can be selected for different time slot lengths, the transmission of data with different delay requirements is satisfied, and the transmission effect of the HARQ-ACK information is improved.

Provided are a multilayer quick response code encoding / decoding method and encoding / decoding device to improve the information capacity contained in the QR code. The method includes: obtaining an image layer number N of a multilayer quick response (QR) code, with the multilayer quick response (QR) code being a multilayer quick response (QR) code obtained by encoding an original quick response (QR) code; acquiring N groups of colour coefficient characteristic values from a bidirectional invertible colour characteristic library, wherein the colour coefficient characteristic values are used for changing the colour parameter of the original quick response (QR) code image layer; and overlaying the original quick response (QR) code image layer according to an agreed colour order using the acquired N groups of colour coefficient characteristic values so as to obtain the multilayer quick response (QR) code image. On one hand, the multilayer QR code image can meet the transmission of a large amount of information, thus improving the transmission efficiency; on the other hand, multiple encryption of the file can be carried out, increasing the security of file transmission.

The invention discloses a radar communication integrated system and an expansion method of the system. The radar communication integrated system specifically comprises a radar with the distance of R2and a control center; wherein the radar is used for transmitting a radio frequency signal s1 (t), investigating a target observation interval with the distance of R1, receiving echo signals reflectedby N targets in the target observation interval, extracting position information from the echo signals and transmitting the position information to the control center; and the control center is used for carrying out data processing on the signal transmitted by the radar to obtain the position of the target. According to the capacity expansion method, when the total power is limited, the capacity of a radar communication system serves as an optimization objective function, power distribution is conducted on the radar system and a communication network, the position of a radar is reasonably planned, and therefore system capacity maximization is achieved. According to the invention, real-time communication can be realized, and under the condition of the same transmitting power, compared witha common radar system, the radar communication system provided by the invention can transmit more data.

The invention discloses a video monitoring management method. The video monitoring management method comprises a step of establishing a video monitoring management system which comprises a monitoring subsystem, an identity authentication subsystem and a video service subsystem, wherein the monitoring subsystem is oriented to a terminal user; the user initiates a video invoking request through the monitoring subsystem; the identity authentication subsystem authenticates services and is in charge of verifying legalities of video requests; illegal video requests are intercepted; after the legal video requests pass through the verification, the requests are sent to the video service subsystem; the video service subsystem provides various underlying services related to a video, and video resources are replayed to the terminal user in real time according to the user request.