70results about How to "Flexible data transmission" patented technology

The invention discloses an avionics system suitable for a multi-purpose unmanned aircraft. A 1553B dual-redundancy bus framework is adopted in the avionics system. The avionics system consists of a main processor unit, a universal interface unit, a 1553B bus, a mass memory, an airborne monitoring terminal, a task load, an execution mechanism and a sensor assembly. The devices have the connection relationships that: the main processor unit, the universal interface unit, the mass memory, the airborne monitoring terminal and the task load are connected with the 1553B bus through a 1553B special electric connector, and the 1553B special electric connector serving as a bus module connects all the devices attached to the bus together; a steering engine controller is connected with the universalinterface unit through an RS422 interface; and the sensor assembly is connected to the universal interface unit through interfaces of serial RS422/RS232/RS485, an ARINC429 bus, a CAN, analogue AD/DA and discrete DIO and the like. The avionics system has the characteristics of strong multi-task expandability, multi-redundancy high reliability, rich data interfaces and strong calculation and processing capabilities, and can well meet the application requirement of 'one platform and multiple purposes' of the unmanned aircraft.

The invention discloses a device and method for JavaScript native interface calling conducted by crossing a mobile operating system platform. The device comprises a forward system and a reverse system, wherein the forward system is used for transferring data exchange carriers of web script programs to a native interface of a mobile terminal, and the reverse system is used for transferring the data exchange carriers returned by the native interface of the mobile terminal to the web script programs in the mode that local services are executed synchronously or asynchronously. The forward system comprises a unified interface calling module, a calling prompt module, a kernel encapsulation class module and a plug-in management module. The reverse system comprises a call-back module and a call-back server module.

The method comprises: the base station determines the carrier wave capable that can be currently used by the scheduled terminal and the high speed downlink packet needing to be transmitted with each carrier wave; allocating the independent HARQ (hybrid automatic repeat request) process for each carrier wave, and determining the ID of the carrier wave and the ID of the allocated HARQ process; on the allocated HARQ process, transmitting the high speed downlink data to its corresponding carrier wave; sending the notice about the ID of carrier wave and the ID of HARQ process to the terminal; according to the obtained IDs, the terminal sends the received high speed downlink packet data to its corresponding HARQ to process in order to get desired service data.

The present invention discloses a device and method for implementing multi-port service convergence. The device at least comprises a clock & data recovery module, a encapsulating module, a mapping module, a de-mapping module and a decapsulating module, and further comprises at least one branch clock generating and adjusting module for determining transmitting clock frequency information of decapsulated service data and adjusting local branch clock frequency based on the transmitting clock frequency. In the method according to the present invention, firstly the transmitting clock frequency information of service data is extracted, then the service data is transparently encapsulated, the encapsulated data packets are mapped and transmitted; then the received data packets are de-mapped, the de-mapped data packets are decapsulated; the transmitting clock frequency information of the decapsulated service data is determined, and local branch clock frequency is adjusted according to the transmitting clock frequency; at last branch service data is received in terms of the adjusted local branch clock frequency.

The invention provides a method for packaging a datagram message of a measurement while drilling (WMD) system, and in particular relates to a method for packaging parameters measured underground of a petroleum WMD system into datagrams. The method is mainly realized by three steps of: (1) numbering the datagrams, and determining the datagrams of special types; (2) delimiting a data field, wherein the main rule is that a value of a 'data field delimiting' field according to the length of each parameter field; and (3) classifying the datagrams, dividing the datagrams into WMD parameters, a data transmission mode and a Huffman coded datagram. The method disclosed by the invention is used for packaging the datagrams of the WMD system in oil drilling, well survey, well logging, and the like, thereby realizing a flexible, universal and efficient data transmission protocol.

The invention discloses a robot protocol implementation method based on Ethernet. The method includes definition of a frame header and domain data. The frame header comprises frame information, instruction codes, frame length and a bitmap, the frame information includes an instruction index number, frame types and frame domain numbers, the index number occupies two bytes and used for representing positions of instructions in an index table, and the frame types occupy one byte and include request frames, response frames, broadcast frames, large file request frames and large file request frames. The protocol data format employs a transmission mode that single domains or multiple domains are selectively combined, so that data transmission can be more flexible, and data transmission efficiency is improved. The robot protocol implementation method has a transmission control function to guarantee safety and accuracy in control of a robot remote control device. By the robot protocol implementation method which is high in timeliness and utilization value, robot remote control can be realized, and flexibility of the remote control device can be greatly improved.

The invention discloses a particle image real-time processing system and a particle image real-time processing method. In the system, a particle image is photographed by a high-speed camera; an original particle image is acquired by an image acquisition card from the high-speed camera, the particle image is primarily processed to obtain a first particle image, and the first particle image is transmitted by an FPGA to a first DSP; the first DSP is used for secondarily processing the first particle image to obtain a second particle image and first particle information, the secondary image processing includes particle identification, tracking of the first DSP and transmission of the second particle image and the first particle information to a second DSP; the second DSP is used for performing tertiary image processing on the second particle image according to the first particle information to obtain second particle information, the second particle information includes particle size, particle shape, particle position, particle concentration and particle speed, and the second particle information is transmitted by the second DSP to the FPGA.

The invention discloses an intelligent integral multifunctional electric energy meter, which comprises an electric energy meter body; an input interface and a load monitoring end are arranged on the electric energy meter body; the input interface and the load monitoring end are respectively limited on two different surfaces of the electric energy meter body; a grid null line and a live wire are accessed into the input interface; a plurality of user loads are accessed into the load monitoring end; and a plurality of transmission connection configurations, a metering module, a circuit breaking module, a transmission port, a display and a control panel are arranged on the electric energy meter body between the input interface and the load monitoring end. According to the electric energy meter provided by the invention, the functions of metering and charging can be realized, and the control of user load can also be realized synchronously; as a plurality of output ports are arranged, the data transmission way is flexible, the user or maintenance staff can conveniently obtain the data information and solve the problems in time. In addition, the invention further discloses a method for controlling a load by the intelligent integral multifunctional electric energy meter.

The invention relates to a kitchen sound environment-based music playing system and method, relates to the field of kitchen music playing, and aims to solve the problem of inconvenient operation caused by the fact that people need to manually select and switch music during cooking. The system comprises a kitchen music playing end, a sound acquisition and analysis system and a player, wherein the sound acquisition and analysis system acquires a kitchen sound environment; the music playing signal output end of the sound acquisition and analysis system is connected with the music playing signal input end of the kitchen music playing end; and the music playing signal output end of the kitchen music playing end is connected with the music playing signal input end of the player. The method comprises the steps of acquiring the kitchen sound environment; analyzing sound information; sending a control instruction; and selecting the type of to-be-played music according to the control instruction and playing the selected music. The system and the method are suitable for entertainment music playing in a kitchen cooking process.

The invention provides a tracking method of hot rolling basic automation control data security timeliness, and the method is used for transmitting steel strip information of production completion to a local database accurately in real time and transmitting the steel strip information to a remote database in the Ethernet synchronously. The technical scheme of the invention is as follows: a data acquisition device is equipped with dual network cards; one of the network cards is connected with a memory mapped network and the network card and the memory mapped network are set as a network section; the other network card is connected with a third layer of Ethernet and the network card is set as a three-layer Ethernet section; an acquisition program in the data acquisition device establishes an external variable of Profibus; the external variable corresponds to a PLC (Programmable Logic Controller) unit address, in such a way, the data acquisition program shares one same memory address; data of finished products in the PLC memory can be stored into the local database through a memory mapped network data acquisition program; lost data can be found from the local database by using a communication interrupt data retransmission mechanism; the lost data can be added into a temporary memory; and a retransmission program is triggered manually till the data is transmitted into the remote database safely.

The invention discloses a microphone array wireless calibration method based on detection of GIL fault sound, which is characterized in that a microphone wireless calibration network system based on the Internet of Things technology is designed and consists of a wireless communication module, a time service module, a signal output module and a data acquisition module. The method comprises steps ofsimulating a point sound source at a spatial position by adopting a multi-channel point sound source spatial sound field synthesis algorithm, and calculating a dynamic sound signal at the spatial position of each microphone in the microphone array and the time delay of the signal reaching the adjacent microphone according to the spatial coordinate of each microphone; a wireless communication module sending an instruction to start a time service module and a signal output module, and a coupling cavity standard sound source connected to a microphone inputting a multi-channel voltage signal intoan array system; and then the data acquisition module acquiring the data to carry out sound source positioning calculation, and comparing the position of the simulation point sound source with the sound source positioning position of the microphone array to realize the calibration of the array positioning accuracy.

The invention relates to the field of computers and discloses a lower computer, an upper computer and a data transmission method which realize flexible data transmission. The data transmission method comprises the following steps: marking and numbering data bits of each byte in data to be transmitted; processing with seven bytes as a unit, wherein the processing method comprising the following steps: S1, extracting the data bit numbered as n in the seven bytes in sequence, and filling the data bit extracted in sequence to data bits from a first data bit to a seventh data bit of a first byte in sequence, S2, obtaining seven data bits from a first data bit to a seventh data bit of a second byte according to the rest of data bits of each byte of seven bytes, S3, filling a first identifier in a 0th data bit of the first byte, and S4, filling a second identifier in a 0th data bit of the second byte; transmitting a data package to the upper computer. The lower computer, the upper computer and the data transmission method are used for data transmission.

The application provides a data transmission method and a data transmission device, advantageous in improving data transmission efficiency. The method comprises: a first device transmits indication information to a second device, wherein the indication information indicates a first transmitting method for a first transmission block, and the first transmitting method is one of at least two transmitting methods; and the first device transmits the first transmission block according to the first transmitting method, or the first device receives the first transmission block according to the first transmitting method.

The invention relates to the communication technology and the automotive electronic technology, more particularly to a vehicle-mounted ethernet network and a method of data transmission by using ethernet network in a vehicle. According to one embodiment of the invention, the vehicle-mounted ethernet network comprises a display module, an audio module, a communication module, a central server, and a transmission medium connecting network nodes. Data are sent between two network nodes as follows: the network node as a data sending terminal determines a type of sent data, wherein the types include a control data type, a video/audio stream type and a normal data type; the network node as the data sending terminal sends the data to the network node serving as a data receiving terminal by the transmission medium based on a protocol associated with the determined type; and for the control data, the network node serving as the data receiving terminal returns a receiving state message to the etwork node as the data sending terminal through the transmission medium.

The invention discloses a power supply centralized monitoring system which comprises a plurality of power supply monitoring modules and a plurality of paths of CAN/RS485 buses, wherein each power supply monitoring module is used for monitoring corresponding power supply data or information; each power supply monitoring module is connected to the corresponding CAN/RS485 bus; each CAN/RS485 bus is connected to a control cabinet; the CAN/RS485 buses are used for transmitting the power supply data or information monitored by the power supply monitoring modules to the control cabinet; the control cabinet parses the received power supply data or information, displays the power supply data or information on a touch screen of the control cabinet and simultaneously, uploads the power supply data or information to a local user information transmission module; and by the local user information transmission module, the power supply data or information is transmitted to a cloud end. The invention further discloses a monitoring method of the power supply centralized monitoring system.

The invention relates to an integrated flight recording device and method. The integrated flight recording device may include: a data acquisition device for acquiring desired data based on customer configuration; a data storage device used for storing the required data acquired by the data acquisition device; a data processing device used for processing the collected data and transmitting the data to the data storage device for storage; a data transmission device used for transmitting the stored data to a ground server as required; and a power adapter used for supplying power to the data acquisition device, the data storage device, the data processing device and the data transmission device.

The invention provides a transmission method, equipment and system of sensor data. A problem that more network resource is occupied since the data size of the sensor data is large in the interaction process of terminal equipment and a server can be solved. A specific technical scheme is as follows: acquiring original data of a target sensor, wherein the original data of the target sensor comprisescontinuous data detected by the target sensor in the preset time bucket; performing quantization processing on the original data of the target sensor according to a quantization model of the target sensor so as to obtain discrete data of the target sensor; and sending the discrete data of the target sensor to the server. The transmission method, equipment and system provided by the invention areused for the transmission of the sensor data.