31results about How to "Meet data transfer requirements" patented technology

The invention discloses a monitoring control method and device. The method includes: a local terminal device acquiring a second timer generated by a first timer which is indicated by timing information included in a first message sent by an opposite-end terminal device and the first timer is used for controlling the opposite-end terminal device to be forbidden to send data to the local terminal device in a first timing period; the local terminal device starting the second timer and entering a dormant state; and the local terminal device ending the dormant state and monitoring the PDCCH when a second timing period of the second timer arrives. In the monitoring control method and device, the local terminal device can be woken up according to the second timer in a targeted way to receive the data transmitted by the opposite-end terminal device. Because the local terminal device does not need to monitor channels blindly, requirements for data transmission are met and at the same time, power consumption of the local terminal device is reduced.

The invention relates to a data scheduling method used in an EPON terminal system and based on absolute priority. The EPON terminal system is a point-to-multipoint network system, comprises three parts: an end OLT, a terminal ONU and a passive optical divider, and is characterized in that: a. FIFOs used for data caching are added in the terminal ONU, and the number of the FIFOs is determined by the current priority number for data discrimination; b. address spaces are allocated in an external memory according to the priority; c. the terminal ONU transmits data to the end OLT, a transmission time slot for report frames used for bandwidth application is reserved at the tail part of a transmission time slot, and the number of data remained in the current system and to be transmitted can be accurately calculated when every time slot transmission is ended; d. when a higher priority comes, the current transmitted data is confirmed to be consistent with the data applied to be transmitted; and e. when end OLT allocates bandwidth more than the applied bandwidth to the terminal ONU, absolute priority scheduling can be selected or round-robin scheduling is selected to equally allocate the excessive bandwidth. Through practical operation and testing, the invention has the advantages that the effect is good, the bandwidth utilization ratio is high and the data transmission requirement of the EPON system is satisfied.

The invention discloses a parameter data server which comprises a data receiving module, a pre-processing module, a standard data output module and a data pool; the data receiving module is used for receiving parameter data and caching the same to a receiving buffer, and then the pre-processing module is started; the pre-processing module is used for analyzing the parameter data which is cached in the receiving buffer, and writing the parameter data into the data pool in a queue data structure; and the standard data output module is used for sequentially outputting the parameter data in the queue data structure in the data pool according to the standard of an object linking and embedding for process control (OPC) interface. The invention also discloses a parameter data transmission method and a data transmission system. According to the invention, multiple types of serial parameter data acquisition equipment can be accessed to a client terminal conveniently.

The invention discloses a streaming data server, which comprises a data receiving module, a preprocessing module, a standard data output module and a data pool, wherein the data receiving module is used for acquiring streaming data from data acquisition equipment, caching the acquired streaming data into a receiving buffer, and starting the preprocessing module after the streaming data is cached; the preprocessing module is used for converting the streaming data cached in the receiving buffer into a binary data stream, and writing the binary data stream into the data pool in a queue data structure; and the standard data output module is used for sequentially outputting the valid queue header data of the binary data stream in the data pool through an object linking and embedding for process control (OPC) standard interface. The invention also discloses a streaming data transmission method and a data transmission system. By the streaming data server, the streaming data transmission method and the data transmission system, the streaming data such as text data, image data and the like can be conveniently transmitted to a client, the unified access of the data can be realized, and remote bandwidth resources and field processing resources can be saved.

The invention discloses a byte-based filtering and policing tube system and a byte-based filtering and policing tube method of an avionics full duplex switched Ethernet (AFDX) switch, mainly solves the problem of frame loss under the condition of larger jitter and different frame lengths. The system comprises a cache, a lookup table, a filtering module, a policing tube module and a determination module, wherein the cache stores data frames and extracts the virtual link (VL) and the frame information of the data frames; the VL is used for searching for the filtering parameters of the data frames in the lookup table; the filtering parameters are compared with the frame information in the filtering module to determine whether the data frames meet a filtering requirement; a byte leaky bucket algorithm is used for controlling data frame traffic in the policing tube module simultaneously; and finally, the determination module is used for determining whether the data frames are permitted to enter a switched network. According to the invention, the implementation method is simple, system resources are saved, the pass rate of the data frames is high, the network switching performance can be improved, and the system and method can be used for filtering data frames and controlling flow rate in an AFDX.

The invention provides a method for allocating and transmitting resources for a mobile station. The method comprises the following steps: a notification message is transmitted to the mobile station which is in an idle state on a control channel; according to the received notification message, the mobile station utilizes wireless resource allocated by cells to transmit downstream data. When the current cell has no sufficient resource to allocate to the mobile station, by the technical proposal provided by the embodiment of the invention, a proper cell can be chosen to allocate resource for themobile station according to a measuring report, and the mobile station is notified to access to a target cell in a dynamic way and to receive the downstream data through transmitting grouping shifting command to the mobile station on public control channel or grouping public control channel, thus better meeting the request for data transmission of a user.

The invention discloses self-calibration sterilizing gas concentration detection equipment based on a wireless data transmission technology. The self-calibration sterilizing gas concentration detection equipment consists of a power control module, a processor, a storage module, an input/output module, a gas pipeline control module, a drying agent module, a gas concentration sensor interface module, an ambient humidity detection module and a data wireless communication module, and is characterized in that influence on normal work of the equipment caused by extreme humidity is avoided; a self-calibration function for sterilizing gas concentration data is realized; and by a ZigBee wireless data transmission module, a requirement on monitoring the data in real time can be met.

The invention provides a data transmission method capable of transmitting multiple algorithm parameters. The data transmission method comprises that 1) an algorithm mapping table, a request mapping table, an operation mapping table, a data type mapping table and a data generation mode mapping table are created, and the above mapping tables are saved to an upper computer and a lower computer; 2) a data frame structure used for algorithm parameter transmission is arranged, for each selected algorithm, the upper computer obtains a parameter to be transmitted of the algorithm every time, based on the algorithm mapping table, the request mapping table, the operation mapping table, the data type mapping table and the data generation mode mapping table, the identification code of the algorithm, the request, the operation and the data type corresponding to the parameter, and the identification code corresponding to the data are filled in corresponding fields of the data frame structure and are packaged and sent to the lower computer; and 3) the lower computer parses the data frame structure in the received data packet based on the mapping tables, and returns a corresponding result to the upper computer based on the parsed request information. According to the invention, the development time and cost are greatly saved, and the transmission efficiency is improved.

The invention relates to a data acquisition apparatus of a fingerprint module group. The data acquisition apparatus comprises a module group interface, a program-controlled power supply module, a current acquisition module, an open-circuit short-circuit detection module, a processor, a PHY chip, a communication interface and a system power supply. The module group interface is respectively connected with the program-controlled power supply module, the current acquisition module, the open-circuit short-circuit detection module and the processor; the PHY chip is respectively connected with the program-controlled power supply module, the current acquisition module, the open-circuit short-circuit detection module, and the processor; the communication interface is connected with the PHY chip; and the system power supply is used for providing power for all modules. After the data acquisition apparatus is connected with a PC and upper-layer software is used, open-circuit and short-circuit detection, working/standby current detection, and fingerprint module group image data acquisition are carried out on the fingerprint module group. Therefore, the fingerprint module group manufacture can detect a fingerprint module group conveniently.

The embodiment of the invention discloses a novel single-fiber bidirectional photoelectric conversion device without an insertion core. The single-fiber bidirectional photoelectric conversion device comprises a laser, a detector, a die base, an optical filter, a ceramic sleeve and an integrated base. An insertion core adapter is integrated into the integrated base, and compared with traditional single-fiber bidirectional photoelectric conversion devices, the novel single-fiber bidirectional photoelectric conversion device has the advantages that the technical process, material cost and labor hour cost of separately manufacturing the insertion core adapter are reduced. Moreover, a laser lap joint mode of the insertion core adapter and the base is changed into an integrated molding mode, deformation, gaps and unstable factors easily generated at the laser welding part are avoided, and the stability and reliability are effectively improved. In addition, the outer end face of a laser connector has a predetermined inclination angle, and the problem can be solved that partial light emitted by the laser and/or light of an insertion core end of an optical fiber connector of an insertion device is directly emitted into the laser, so that the performance of the laser is deteriorated, and the optical transmission is affected; the device can be comparable to a device with the insertion core and meet data transmission requirements.

The invention discloses a data caching architecture applied in a local side of an Ethernet passive optical network (EPON) system, which provides a flexible data caching architecture by the following steps of combining an external synchronous dynamic random access memory (SDRAM) and an internal static random access memory (SRAM); adopting flexible dynamic adaptation data service grades; and utilizing a strategy capable of allocating the cache capacity for each service grade, and partioning the data caching into multiple blocks through using a certain byte as a unit. The data caching architecture is applied in the chip development process of an optical line terminal (OLT), and has satisfied effect and high bandwidth utilization rate after actual operation tests, and can meet the EPON system data transmission requirements; and proven by the tests, the uplink total bandwidth can reach no less than 980Mbps when the random length of a frame is transmitted and the frame is portioned into 8 service priority grades.

The invention relates to a multi-type information transmission device adaptive to an optical fiber network, belongs to the technical field of data transmission, and is used for solving the problem that the real-time performance and reliability requirements of data transmission based on the optical fiber network cannot be met in the prior art. The device comprises a plurality of types of data sending ports, a data receiving port, a coding module, a decoding module and an optical fiber receiving and transmitting integrated module, the input end of each type of data sending port is connected with the signal output end of the corresponding type of test equipment, and the output end of each type of data sending port is connected with the input end of the coding module; the input end of each type of data receiving port is connected with the output end of the decoding module, and the output end of each type of data receiving port is connected with the signal input end of the corresponding type of test equipment; the data input end of the optical fiber transceiving integrated module is connected with the output end of the encoding module, the data output end of the optical fiber transceiving integrated module is connected with the input end of the decoding module, and an optical fiber interface is connected with an optical fiber network.

The invention discloses a data transmission method and a data transmission system. The data transmission method comprises the following steps: receiving a data packet; obtaining a first data total packet or a first data sub-packet according to the type of the data packet; and obtaining a second data sub-package or a plurality of third data sub-packages according to the identifier of the first datatotal package, or obtaining the second data total package or the third data total package according to the first data sub-package. According to the data transmission method provided by the invention,the long data packets can be split or the data sub-packets can be packaged according to the types of the data packets. Therefore, the requirement of two-way communication can be met, and meanwhile, the data packets can be unpacked according to the types and the lengths of the data packets, so that the data packets can meet the data transmission requirement under specific conditions.

The invention relates to an optical fiber network system based on multi-type test equipment, belongs to the technical field of optical fiber network design, and solves the problems that the optical fiber network system based on the multi-type test equipment is high in design difficulty and poor in data transmission timeliness. The system comprises an optical fiber interface board, a multi-type information transmission device, a plurality of types of test equipment and an upper computer, wherein the plurality of optical fiber interface boards are connected according to a network topology architecture of an optical fiber network; each optical fiber interface board is connected with one or more multi-type information transmission devices, and each multi-type information transmission device is connected with one or more types of test equipment; any optical fiber interface board is selected to be connected with the upper computer; therefore, the optical fiber network system is formed.

The invention relates to a CRC segmented calculation method and device in a high-speed network. The method comprises the following steps: partitioning a data packet of a to-be-calculated CRC value in the network to obtain M to-be-calculated data blocks arranged according to a data sequence; calculating the CRC value of each data block to be calculated; adopting the CRC final value of the previous data block as the CRC initial value of the current data block; taking the final value of the last data block as the CRC value of the data packet; and when the CRC calculation of the current data block is carried out, combining the CRC initial value of the current data block, and adopting N CRC calculation units to carry out parallel calculation to obtain the CRC final value of the current data block. According to the invention, the CRC value of the large-scale data packet can be quickly calculated in real time so as to meet the bandwidth requirement of a high-speed network.