127results about How to "Meet the needs of data transmission" patented technology

The invention discloses a data transmission method, a server side and a client. The data transmission method comprises the following steps that: the server side and the client carry out information interaction through an authentication protocol, and perform identity authentication with each other; a session key is generated by the server side and the client through a key exchange protocol; a data packet to be transmitted is encrypted by the client through adopting an encryption algorithm and the session key, and the encrypted data packet is transmitted to the server side; and the received encrypted data packet is decrypted by the server side through utilizing the session key and the encryption algorithm, and the corresponding operation is executed. According to the scheme, unidirectional transmission of the transmitted data packet from the client to the server side can be implemented, establishing process is simple, and the computing resource is effectively saved, so that the data transmission is safer and more reliable.

An embodiment of the invention discloses a method, terminal and system for achieving device-to-device communication. The communication method includes: acquiring a radio network temporary identity for the device-to-device communication; receiving transmission authorization information scrambled by the radio network temporary identity for the device-to-device communication; and performing the device-to-device communication according to the descrambled transmission authorization information. The radio network temporary identity for the device-to-device communication and the transmission authorization information are sent to a terminal, the terminal can achieve device-to-device (D2D) communication according to the radio network temporary identity for the device-to-device communication and the transmission authorization information, and D2D data transmission requirements between terminals are met.

The invention discloses a data transmitting and receiving method, a device and a data transmission system, wherein the data transmission requirement of a service larger in occupied bandwidth can be met and the data transmission efficiency is improved. A data transmitting terminal is pre-bound to a plurality of data transmission channels. The data transmitting method comprises the steps of dividing the data stream of a to-be-transmitted original internet protocol IP into a plurality of sub-data streams by the data transmitting terminal; and respectively transmitting each sub-data stream to a data receiving terminal through one pre-bound data transmission channel by the data transmitting terminal. The data receiving method comprises the steps of respectively receiving sub-data streams transmitted through different data transmission channels by the data transmitting terminal, wherein the sub-data stream transmitted through each data transmission channel is obtained through dividing the data stream of the same original internet protocol IP; and combining the received sub-data streams to obtain the data stream of the original internet protocol IP.

The invention relates to a multi-path high-speed serial interface controller. The multi-path high-speed serial interface controller comprises a front-end high-speed universal serial bus, a main control logic, and a back-end multi-path high-speed serial interface. The back-end multi-path high-speed serial interface is accessed to the front-end high-speed universal serial bus through the main control logic. The invention provides a multi-path high-speed serial interface controller that extends the high-speed universal serial bus into a high-speed serial interface of a system user-defined protocol, increases the data communication rate, and improves the central control function.

The invention relates to a method for converting COMOS data to PDMS data in pipeline design. The method comprises the following steps: traversing a PID plot of COMOS software and generating an endpoint list; B. traversing from a first endpoint of the endpoint list, and generating a pipe system list of the PID plot; C. reading attributes of all elements in the pipe system from a first pipe system in the pipe system list along a logic sequence of pipelines, and storing the read attributes and corresponding attribute values as an intermediate file according to a data format recognizable to the PDMS software; and D. reading, by the PDMS software, the intermediate file, and generating a pipe system list and a three-dimensional data model which correspond to the PID plot. By adopting the method, the data integrated transfer of the three-dimensional modeling from COMOS software to PDMS software is realized, and therefore the design efficiency is greatly improved, errors possibly caused by manually inputting data is maximally avoided, and the quality of a finished product is greatly improved.

The invention discloses an Internet of Things communication method, a server, a terminal and a device, and the method comprises the steps that a load balancing server distributes a gateway server to an Internet of Things terminal based on the load capability information of each gateway server when receiving a connection building request from any Internet of Things terminal, wherein the load capacity information is used for representing the current load capacity of the corresponding gateway server, and the load balancing server returns the connection information of the gateway server to the Internet of Things terminal, so that the Internet of Things terminal realizes Internet of Things communication after establishing network connection with the gateway server based on the connection information. Compared with the prior art, the load balancing server does not need to undertake a data forwarding function, and the Internet of Things terminal directly sends the data to the gateway server,so that the data transmission requirement in Internet of Things communication can be met without arranging the load balancing server.

The invention discloses a data transmission method, device and system. The device is integrated on an FPGA. The apparatus comprises: an apparatus body; the system comprises a protocol stack logic control unit, a transmit-receive control logic unit, a data interaction control unit and an over-ten-gigabit optical transmit-receive unit used for receiving / sending data. The protocol stack logic controlunit is used for acquiring to-be-sent data, encoding the to-be-sent data according to a TCP / IP protocol, sending the encoded to-be-sent data through the over-ten-gigabit optical transceiver unit, decoding the to-be-received data received through the over-ten-gigabit optical transceiver unit according to the TCP / IP protocol, and sending the decoded to-be-received data to the transceiver control logic unit; transceiving control logic unit, the verification module is used for receiving the to-be-sent data information from the CPU and carrying out validity verification on the to-be-sent data information; and when the data is legal, sending the to-be-sent data information to the protocol stack logic control unit, and storing the decoded to-be-received data to an external memory according to verification of the legality of the decoded to-be-received data from the protocol stack logic control unit.

The present invention provides a video data transmission method and apparatus. The method includes the following steps that: video data captured by a plurality of cameras arranged at different positions are acquired; and video data captured by one of the cameras are adopted as first video data, and are transmitted to a display terminal in real time, and video data captured by the other cameras are stored; and when the photographing of the cameras is terminated, the other stored video data are sequentially transmitted to the display terminal, so that the display terminal can splice images at corresponding positions on the time axis of all the video data according to a preset format, so that a spliced video can be formed. According to the video data transmission method provided by the invention, in a transmission process, a plurality of paths of video data are transmitted separately, so that requirements for the bandwidth of a data transmission interface can be lowered.

The invention discloses a data transmission path selection method based on vehicle density distribution. The method comprises the following steps of acquiring position information of a source node and a purpose node; selecting a transmission path and carrying out data packet forwarding in a street. By using the method of the invention, a packet loss and retransmission brought by a data transmission path failure generated because of a unnecessary routing void are avoided and a network load is reduced; a data transmission time delay state under the condition of sparse vehicles can be reflected and a data transmission time delay state under a vehicle jam (common) scene can be reflected too. The model is suitable for a more general scene.

The invention relates to a space laboratory information system based on an advanced in-orbit data processing method. The telemetering, instruction and communication functions are realized through a data information system based on a 1553B bus, and the high-speed data transmission is realized through a high-speed data transmission system based on AOS. The space laboratory information system based on the advanced in-orbit data processing method disclosed by the invention can support a manned spacecraft to accomplish all in-orbit functions.

The invention discloses a bus communication system, including: the data bus carrying the data transfer; multiple bus node devices connected by the bus, the link between the bus node devices which can modulate different data types in the processing time slot of the corresponding bus via different modulation modes. In addition, the invention also discloses one corresponding data link establishment and data transfer method in the bus communication system. The invention can avoid the mutual influences when multiple types of data are transferred between the bus devices, can improve the transfer efficiency, simplify the network deployment, and further meet the requirement of the data transfer, so it is very applicable to the power carrier system within a small range, especially the home power carrier system.

The embodiment of the invention provides a radio frequency circuit and electronic equipment, and the radio frequency circuit comprises a modem which is used for processing a first 5G radio frequency signal of a first SIM card and a second 5G radio frequency signal of a second SIM card; four first antennas, wherein each first antenna is connected with the modem; a second antenna which is connectedwith the modem, wherein the four first antennas and the second antenna are configured to perform different transmission on the first 5G radio frequency signal and the second 5G radio frequency signalaccording to different scenes. The radio frequency circuit can realize dual-card dual-standby and dual-card dual-pass through a set of radio frequency communication system, and can avoid increasing the number of antennas in the radio frequency circuit, thereby reducing the occupation of the antennas for the internal space of the electronic equipment, and improving the utilization rate of the internal space of the electronic equipment.

The invention discloses a CPE (Customer Premise Equipment) terminal, data stream transmission methods and public and private network switching methods. The CPE terminal comprises a master control module, a radio frequency transmitting and receiving module and a 4G communication module which supports public network and private network switching. The master control module receives information forwarded by the radio frequency transmitting and receiving module through utilization of the 4G communication module, issues the information to a business terminal, and / or transmits the information sent bythe business terminal to the 4G communication module. The information is forwarded to the radio frequency transmitting and receiving module through utilization of the 4G communication module. The master control module is equipped with an Ethernet interface in communication connection with the business terminal. The 4G communication module is in communication connection with the master control module through utilization of a USB. The master control module is also equipped with a serial port in communication connection with the business terminal. The 4G communication module is in communicationconnection with the master control module through utilization of a UART (Universal Asynchronous Receiver / Transmitter). According to the CPE terminal, the data stream transmission methods and the public and private network switching method, the 4G communication module which supports the public and private network switching is employed, demands of various business data streams for a transmission network can be satisfied, and power wireless private network construction cost is reduced.

The invention discloses a variable-length label design method suitable for a multi-service type satellite network, and the method comprises the following steps: (1) proposing label definition, and designing a message label; (2) forwarding according to the designed message label; and (3) a network control module processing the message label. According to the method, a flexible label design method is adopted, user terminals with various service types and multi-rate configuration in a satellite network can be fused, and efficient satellite-borne message exchange processing is provided with low channel expenditure.

The invention discloses a method for transmitting two-layer data in an LTE system. The method can be used for realizing completely transparent transmission service transmission of the two-layer data between a terminal and a service network without changing the existing network deployment or network plan of users in the industry, simply changing information transmitted in a standard LTE access process and enhancing the two-layer processing ability of a PDN gateway to realize the wireless transparent transmission of the two-layer data between the terminal and the service network by transparently adding the LTE system without changing the network deployment or the network plan of the users, and meeting the data transmission demands in specific industrial fields, and meanwhile, by means of the transparent processing, the method can be used for greatly avoiding the transmission efficiency and processing efficiency problems caused by replacing a data MAC address via the PDN gateway.

The invention provides a data processing apparatus and method for an interconnection circuit. The data processing apparatus is an interconnection node used for connecting one or more transaction data sources to one or more transaction data destinations in the interconnection circuit. The data processing apparatus comprises at least one input end, at least one output end, a buffer storage distribution circuit, a route selection circuit, an arbitration circuit and a multiplexer circuit, wherein the input ends include a plurality of input ports, output ports, at least two multiplexers and at least one buffer memory; the buffer storage distribution circuit controls the multiplexers to allocate temporary storage positions to input transaction data according to current states of the buffer memories; the route selection circuit selects the output ends for transaction data of a buffer queue; the arbitration circuit arbitrates the buffer queue with a priority transmission right and enables transmission of multiple transaction data competing the same output end to obtain output access occupation rights in sequence according to a preset arbitration policy; and the multiplexer circuit is connected with the output ports and the output ends, and transfers data transmission in the interconnection circuit.

The invention discloses a hybrid communication method for a communication gateway machine of a transformer substation and a main dispatching station system. The hybrid communication method comprises the following steps that: a clipping rule of each main dispatching station is pre-configured on the communication gateway machine of the transformer substation; when a target main dispatching station needs to communicate with a monitoring system of the transformer substation, the communication gateway machine of the transformer substation reads the clipping rule and clips and combines original data of the transformer substation so as to obtain data required by the target main dispatching station; a communication mode is selected according to real-time requirements of a system application of the target main dispatching station; and the data required by the target main dispatching station obtained by combination is sent to the target main dispatching station from the communication gateway machine of the transformer substation. According to the invention, information clipping and combining can be automatically completed; errors possibly due to artificial configuration can be eliminated; communication mode selection by users can be shielded through seamless switching having configurable contents; furthermore, user data transmission requirements having different real-time performances can be satisfied at the bottom layer; communication modes and contents are flexible; hardware is unnecessary to increase; and the hybrid communication method is good in compatibility and wide in application range.

The invention provides an underwater data transmission system, which is used for meeting the data transmission requirement of underwater large data volume. The underwater data transmission system comprises a gateway node carrying an underwater acoustic communication machine and an underwater optical communication machine, an underwater monitoring node and an underwater communication node, and theunderwater monitoring node is used for sending first positioning navigation guide information to the underwater communication node through the underwater acoustic communication machine when monitoringdata needs to be sent. The underwater communication node is used for moving to a corresponding position according to the received first positioning navigation guide information, establishing underwater optical communication connection with the underwater monitoring node through the underwater optical communication machine, and receiving monitoring data sent by the underwater monitoring node, andreceiving second positioning navigation guide information sent by the gateway node after the monitoring data transmission is completed, moving the second positioning navigation guide information to acorresponding position, establishing underwater optical communication connection with the gateway node through the underwater optical communication machine, and sending the monitoring data to the gateway node through the established underwater optical communication connection.

The invention relates to an air conditioner multi-split method based on a power line carrier communication network. The multi-split method comprises the following steps that a host computer transmits a synchronous data frame to make all subordinate computers enter the communication mode; the host computer transmits equipment control data to all the subordinate computers to conduct control; the host computer conducts state data communication with all the subordinate computers within the preset communication time value; the host computer stops communication with all the subordinate computers; and the host computer judges whether a bus is available or not, and if yes, the mentioned steps are implemented in sequence once again. By means of the air conditioner multi-split method, the communication requirement of a multi-split air conditioning unit can be met.

The invention discloses an information interaction method, and belongs to the technical field of the data transmission. The method comprises the following steps: a server connects with a client through a data channel, and sends acquired data information to the client; the client connects with the server through a command channel and sends command information to the server. The data channel and thecommand channel are used for connecting the server and the client, the data channel is used for realizing the sending and receiving of the data information, and the command channel is used for realizing the receiving and the sending of the command information, a way for the information sending and receiving thread is reasonably designed so as to perform information interaction; the reliability and practicability of the method applied to the information interaction in the development process are guaranteed, and the real time and the controllability of the data transmission process are ensured.The method can be used for other the network interaction of non-Windows operation system in an extensible way, and capable of satisfying the data transmission demands of being large in data size, high in real time and complex in thread interaction of the distributed test system.

The present invention relates to the technical field of wireless communication. The invention provides a method of realizing grouped data retrial upstream, and device and system, when the network side finds the current area having no available resource, an adjacent area having enough wireless resources is selected, wireless resources are distributed in the adjacent area, and the mobile terminal is appointed to the adjacent area, so as to realize retrial upstream, as far as possible to meet the data transmission requirement of user.

The invention provides a parallel matrix full-selected primary element Gauss-Jordan inversion algorithm based on multi-core DSP (Digital Signal Processor), which solves the shortcoming that the current inversion matrix algorithm cannot meet all matrixes and cannot meet the requirement of high-speed operation. The method comprises the following steps: dividing a matrix A into p sub-matrixes, then transmitting the p sub-matrixes to processors No.1 to No.(p-1); updating the primary running elements through the processor with the current primary running element; transmitting the updated primary running elements to all the processors except for the processor No.0 and the current processor; updating the sub-matrixes through the processors No.1 to No.(p-1); returning the sub-matrixes to the processor No.0; and then selecting a running element following the previous primary running element as the new primary running element to repeat the process until all diagonal elements of the original matrix are taken as the primary running element. With the adoption of the scheme, the method provided by the invention can fullfill the inversion function for all matrixes and meet the requirement of high-speed operation.

The invention discloses a mobile phone remote monitoring system for a solar hot water project and a control method of the mobile phone remote monitoring system. The monitoring system comprises a data collecting system, a touch screen controller, a data relay, a remote server, a message pushing server, a database and a mobile phone client side. The input end of the data collecting system is connected with a plurality of sensors and used for collecting basic data of the solar hot water project. The input end of the touch screen controller is connected with the output end of the data collecting system. The input end of the data relay is connected with the output end of the touch screen controller. The input end of the remote server is connected with the output end of the data relay. The message pushing server is connected with the remote server. The database is connected with the remote server. The mobile phone client side communicates with the remoter server and the message pushing server through a wireless network. The sensors include the water tank temperature sensor, the water tank liquid level sensor, the pipeline temperature sensor and the heat collector temperature sensor. The mobile phone remote monitoring system has the beneficial effects that the structure is simple, the cost is low, remote monitoring is convenient, and the mobile phone remote monitoring system is not limited by time or space.

The present application discloses an aircraft and an external device thereof, and a communication method, apparatus and system. The method is performed by an aircraft, comprising: receiving a data transmission request; increasing an uplink transmission bandwidth according to the data transmission request; and receiving data to be transmitted from the uplink; wherein the uplink is a communication link to transmit data to the external device from the external device. The above scheme can flexibly adjust the communication bandwidth of the uplink between the aircraft and the external device to meet data transmission requirements.

The invention relates to a data transmission method and a data transmission device. The data transmission method comprises the steps of sending data to be transmitted, wherein the data to be transmitted are treated with primary processing through an audio channel, and / or receiving an audio signal containing data information through the audio channel and recovering data. The data transmission device comprises a first transmission module and / or a second transmission module, wherein the first transmission module is used for sending the data which are to be transmitted and treated with primary processing through the audio channel, and the second transmission data is used for receiving the audio signal containing the data information through the audio channel and recovering the data. According to the data transmission method and the data transmission device, data transmission is achieved through audio interfaces of audio devices such as mobile phones and computers, a novel method to achieve bidirectional data transmission is developed, and requirements of increasing data transmission are met. The data transmission method and the data transmission device lay a foundation for application of other kinds of data transmission based on an audio interface.

The invention relates to a separation structure of optical packet heads and payload used in an asynchronous optical packet switching network, and is characterized in that: the structure comprises an optical power splitter and a second multimode interference coupler; an upper output port of the optical power splitter is connected with a first multimode interference coupler and the upper output port of the optical power splitter is connected with an input end of the first multimode interference coupler; a lower output port of the optical power splitter is connected with the other input end of the first multimode interference coupler through an optical fiber delay line; an output end of the first multimode interference coupler is connected with an input end of the second multimode interference coupler through a first semiconductor optical amplifier; the other output end of the first multimode interference coupler is connected with the other input end of the second multimode interference coupler through a second semiconductor optical amplifier; detection optical packet heads are outputted from a lower output port of the second multimode interference coupler; the detection optical payload is outputted from an upper output port of the second multimode interference coupler.

The invention provides a method and a device for determining uplink transmission time domain resources. The method for determining the uplink transmission time domain resources comprises the steps that first information sent by network equipment is received, wherein the first information is used for configuring time domain resources of physical uplink shared channel (PUSCH) transmission opportunities, and the first information comprises guard interval configuration information and time domain resource configuration information of the PUSCH transmission opportunities; time domain resources of the plurality of first PUSCH transmission opportunities are determined according to the first information, and all time domain symbols of each first PUSCH transmission opportunity are located in the same time slot, wherein a time domain interval between at least two adjacent first PUSCH transmission opportunities in the plurality of first PUSCH transmission opportunities is greater than or equal toa guard interval configured by the guard interval configuration information. The transmission requirement of a 5G communication system can be met.

The invention discloses an aircraft cabin data distribution method and system. The aircraft cabin data distribution system may include a cabin control unit and a cabin distribution unit, the cabin distribution unit including: a first exchange module for exchanging data with the cabin control unit; a first interface module comprising a first interface for coupling to a first terminal device arranged in an aircraft cabin and transmitting data in a first format with the first terminal device; and a second interface module including a second interface for coupling to a second terminal device disposed within the aircraft cabin and transmitting data in a second format with the second terminal device, wherein the first interface and the second interface have different interface types. The invention further discloses an aircraft cabin data distribution method.

The invention discloses a scenic spot tourist coach intelligent scheduling system and method for detecting unoccupied seats. The system comprises a cloud service application platform, a tourist terminal APP and a tourist coach unit. The cloud service application platform, the tourist terminal APP and the tourist coach unit are in wireless signal interaction connection; the tourist coach unit comprises a tourist coach single-chip microcomputer. The input end of the tourist coach single-chip microcomputer is electrically connected with a force transducer, a pyroelectric sensor and a route GPS positioning navigation module in a one-way mode. According to the invention, through cooperation of the cloud service application platform, the tourist terminal APP and the tourist coach unit, a plurality of tourist coaches in a scenic area can be accurately scheduled in real time according to the actual condition of the tourist coaches in the scenic area, so that the passenger loading condition of the tourist coaches is optimal, and the conditions of missing seats and wrong seats on the tourist coaches are avoided; in comibination with thetourist coach single-chip microcomputer, the transmission information data on the tourist coach can be processed and analyzed in real time.