The invention belongs to the airborne network communication technique and discloses an airborne network ARINC615A data loading unloading control method. Aiming at the technique that an airborne network adopts an ARINC615A protocol to realize data loading unloading, a portable maintenance access terminal PMAT is connected to the ARINC615A loading terminal; a loading unloading control graphical software is developed through a loading unloading control method; the problem of inconvenient operation resulted from that the airborne network needs a special serial port display device and a non-graphical interface to load and unload is solved; the maintenance efficiency of the airborne network is improved, and the problems of non-uniform versions resulted from operation errors are reduced.

Airborne network ARINC615A data loading unloading control method

The invention relates to a network data acquisition method, comprising the steps of: S1, acquiring network data from Ethernet through a hardware acquisition device; S2, judging the complete state of the network data; and S3, adding identification information to the network data according to the complete state of the network data, and packaging and sharing the network data. A memory of a data processing device is mapped with a memory buffer area of the hardware acquisition device, thereby preventing the CPU interrupt of the data processing device from participating in the acquisition of the network data, and then avoiding the data packet loss caused by the overload of the CPU processing capacity of the data processing device. The rate of network data acquisition is improved through the hardware acquisition device and the acquisition performance is ensured. Therefore, in the design of a high-speed network application system, the case where the CPU of the data processing device participates in the network data acquisition does not need to be considered, and the design difficulty and uncertainty of the entire system can be effectively reduced.

Network data acquisition method

The invention belongs to a computer communication technology, and provides an FC-AE-ASM message-based data loading method The data loading speed is increased to the largest extent The method comprises a starting stage and a transmission stage In the starting stage, a loader and a target end interact through an operation request packet and a response packet; a loading process is started; a loading end transmits file information needing to be loaded to the target end through a file information packet; the target end analyzes the file information needing to be loaded and then enters the file transmission stage; and the loading end is requested to send files through a file transmission process, until all the files are transmitted

FC-AE-ASM message-based data loading method

The invention relates to a method for storing digital files implemented by a deterministic avionics network with predetermined routing, and associated avionics communication system. A storage method of digital files carried out by a determinist avionic network with predetermined routing comprises: a phase (PE) of writing in a digital file including the steps of determining (110) a digital file tobe stored by an end system performing transmission, associating (120) a time reference with the digital file to be stored, transmitting (130) the digital file to be stored and the associated time reference to K individual switches using one or more data frames, and a step of generating (140), by at least some of the switches, a copy of the digital file to be stored and storing the copy together with the associated time reference in the respective storage unit of the switches.

Method for storing digital files implemented by a deterministic avionics network with predetermined routing, and associated avionics communication system

The invention discloses an index establishment method, executed in a computing device. The method is suitable for establishing indexes for a file system. The file system comprises a plurality of data objects. The data object comprises a directory and a file. The method comprises the following steps: according to the hierarchical relationship of the plurality of data objects, establishing a linear index of the file system, the linear index comprising names and index information of data objects of all levels, sequentially storing the names and the index information, the index information of any directory comprising a start label, and storing position information of a first sub-data object under the directory in the start label in the linear index; the index information of the last sub-data object under any directory comprises an end label, and the position information of the directory in the linear index is stored in the end label. The invention also discloses a corresponding data searching method and a computing device.

Index establishment method, data query method and computing device

The invention relates to a storage method and a fast search method of avionics network management information. For a management information base (MIB) used in avionics network management, a two-level linear list storage mode with an index list is built; based on the two-level linear list storage mode, the fast search method is provided. The fast search method solves the problem of potential safety hazards existing in dynamic storage of the network management MIB, guarantees the search efficiency of the MIB and meets the response time requirement of avionics network management tasks.

Storage method and fast search method of avionics network management information

The invention provides to an avionics network high speed data loading and unloading method, and solves the problem that in an avionics network data loading and unloading technology, the loading and unloading efficiency is low. A new file transfer protocol based on a UDP is provided, when data are transferred by the file transfer protocol, the maximum size of a data package is negotiated by a data sender and a data receiver, the maximum size, which can be transferred, of the data package is obtained, and then the data can be transferred by using the maximum size of the data package. A receiving end does not confirm each data package independently, but confirm the received data packages uniformly after a plurality of data packages are transferred, data packages which are not received correctly are identified in a confirmed package, and therefore the number of data packages to be confirmed in the process of transferring the data packages is reduced. After the data receiver receives the confirmed package, the data packages which are not received correctly are retransferred, and the data transferring efficiency is improved through reducing the number of the data packages to be confirmed.

Avionics network high speed data loading and unloading method

The invention provides a method for rapidly loading configuration tables of airborne devices. The method includes the following steps: 1, according to the positions of the airborne devices, the configuration tables corresponding to the positions in a one-to-one mode are built; 2, storing the configuration tables corresponding to the positions into the same configuration table file, and curing the configuration table file into the airborne devices; 3, acquiring domain, boundary and position information corresponding to the current position; 4, calculating position identification values according to the acquired domain, boundary and position information, wherein the position identification values correspond to the configuration tables in a one-to-one mode; 5, in the process of loading the configuration tables, according to the position identification values, searching for the corresponding configuration tables, and loading the configuration tables. By means of the method for rapidly loading the configuration tables of the airborne devices, the file comprising the multiple configuration tables can be programmed in all the airborne devices in advance, each configuration table corresponds to one position where the corresponding airborne device is possibly located, and it is unnecessary to reprogram new configuration tables.

Method for rapidly loading configuration tables of airborne devices

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Storage method and fast search method of avionics network management information

Avionics network high speed data loading and unloading method

Airborne network ARINC615A data loading unloading control method

Method for rapidly loading configuration tables of airborne devices