CN105530301A - Airborne network ARINC615A data loading unloading control method - Google Patents

Abstract

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.

Description

A kind of onboard networks ARINC615A data add the control method of unloading

Technical field

The invention belongs to the onboard networks communication technology, relate to and carry out by portable maintenance access terminal PMAT the control method that onboard networks data add unloading, be applicable to adopt ARINC615A to carry out adding the onboard networks of unloading.

Background technology

The data volume of mobile system task and complexity are geometric sense multiplication by stages, the quantity also sharp increase of airborne equipment, onboard networks scale increases thereupon, device upgrade maintenance work adopts special facilities to carry out upgrade maintenance from traditional for single airborne equipment, progressively develop into adopt ARINC615A network to add unloading agreement is unified carries out online upgrading maintenance.This maintenance mode generally by massive store MMM node assumes loading end role, is configured to other Airborne Terminal equipment by MMM, the file such as software and flying quality add unloading.But MMM equipment adopts embedded OS, needs to be connected to commissioning device, carries out simple order line operation by serial ports, attendant uses very inconvenience.

Summary of the invention

The invention provides the control method that a kind of onboard networks ARINC615A data add unloading, facilitate the maintenance upgrade of attendant to whole net, PMAT in the present invention is portable maintenance access terminal, MMM is mass-memory unit, and the method adopts PMAT to carry out onboard networks data to control MMM to add unloading.The present invention to be applicable between MMM and other airborne equipments by ARINC615A agreement, realizes the situation that mobile system adds offloading functions.

Technical scheme of the present invention:

Onboard networks ARINC615A data add a control method for unloading, it is characterized in that, comprise following flow process:

1) user is by the list of devices of PMAT to MMM acquisition request Airborne Terminal equipment, so that user knows which there is can add unloading equipment;

2) user selects needs to carry out adding the equipment of unloading operation by PMAT in list of devices, if this equipment had successfully carried out a FIND operation, then proceeds to step 4), otherwise, proceed to step 3),

3) user carries out FIND operation by PMAT to this equipment; If FIND success, then proceed to step 4), if FIND is unsuccessful, then proceed to step 2);

4) user adds unloading by PMAT to the equipment being successfully completed FIND operation, described in add that unloading comprises information, uploads, media definitions is downloaded and/or the self-defined download of operator;

5) add after unloading completes, user judges whether to also have the equipment needing to carry out adding unloading operation, if having, then proceeds to step 2); Otherwise this adds Unloading Control operation and terminates.

Wherein, in aforesaid operations flow process, between PMAT and MMM, the field of message format for communications is followed successively by type of message, message-length and message content;

The content-length of type of message and message-length is 2 bytes;

If the high byte in type of message 01, represent PMAT to the message of MMM, if 02, represent MMM to the message of PMAT; Low byte in type of message represents message ID number;

The length shared by content representation message content field of message-length.

Communication information between PMAT and MMM comprises list of devices request, list of devices response, information operating request, information operating response, acquisition upload file list request, obtains upload file list response, upload operation request, media definitions download request, obtains file to be downloaded list request, obtains file to be downloaded list response, the self-defined download request of operator, state information and confirmation.

Above-mentioned PMAT is connected with MMM by Ethernet, between PMAT and MMM, data communication provides physical link, enables PMAT add unloading operation by udp protocol control MMM.

Add Unloading Control operation to complete based on udp protocol.

Above-mentioned PMAT is the PC being provided with Ethernet interface.

Above-mentioned steps 1) in, user is also provided with the waiting-timeout time t of PMAT, so that user arranges the waiting-timeout time according to network condition, improves the success rate adding unloading;

Carry out at PMAT and MMM in the process of message communicating, if PMAT waits for that MMM replys message time more than t, then add unloading operation failure, terminate this and add Unloading Control operation.

Wherein, the value of the waiting-timeout time t of PMAT, user can be arranged according to current network state.

The advantageous effect that the present invention has: graphically can control Large Copacity by PMAT and carry out the upgrade maintenance of whole network equipment and flying quality is downloaded, be convenient to attendant's operation, reduce maintenance cost and manual operation slip up the version problem caused, raising maintenance efficiency and accuracy.

Accompanying drawing explanation

Fig. 1 is network topology schematic diagram of the present invention.

Fig. 2 of the present inventionly adds Unloading Control flow chart.

Embodiment

PMAT is portable maintenance access terminal, possessing by safeguarding the ability that Ethernet communicates with MMM, can be realized in actual applications by PC.MMM is mass-memory unit, possesses ARINC615A data and adds relieving capacity, as being loaded end on maintaining network, and the loading command of response PMAT; As loading end in onboard networks, carry out ARINC615A data to other Airborne Terminal equipment and add unloading operation.Concrete network topology as shown in Figure 1.

In the present invention, PMAT is by safeguarding Ethernet, and control MMM module completes the various operations of ARINC615A to other Airborne Terminal equipment, the FIND of ARINC615A, information can be supported, upload, medium download and the self-defined down operation of operator.

Add Unloading Control needs for meeting MMM, the present invention defines between PMAT and MMM and adopts Ethernet udp protocol to carry out alternately, and PMAT sends message to 5100 ports of MMM, and MMM sends message to 5200 ports of PMAT.

Between PMAT and MMM, the basic format of communication information is as shown in table 1.The message content of character string forms, as filename etc., should by 2 byte-aligned, if length is odd number, step-by-step mends 0.

Table 1 message basic format

Communication information between PMAT and MMM is distinguished by the message ID number of low byte in type of message, and the type of message content that different messages is corresponding is as shown in table 2.

Table 2 type of message content

PMAT carries out the flow process of Loading Control as shown in Figure 2.When PMAT carries out adding Unloading Control, first obtain the list of devices that can carry out operating from MMM, then FIND operation is carried out to the individual equipment in list of devices, only have and successfully carried out at least 1 FIND operation, confirm online equipment, just can carry out follow-up information, upload and download operation.

When obtaining list of devices, need PMAT to receive user instruction to MMM transmitting apparatus list request message, MMM obtains the current all devices list that configured and returns to PMAT from configuration information.

When carrying out FIND operation, user need select certain equipment in list of devices, carries out FIND operation to it.PMAT is according to user command, and tissue also initiates the order of FIND Request Control to MMM, after MMM receives this order, carries out FIND operation to this target device, and returns FIND operating result to PMAT.

If user will carry out information operating to certain equipment, then after choosing this equipment in list of devices, initiate information operating control command by PMAT to MMM.After MMM receives this information, initiate information operating to this target device, and operating result is returned to PMAT equipment.

If user needs to carry out load operation to certain equipment, then after should selecting this equipment in list of devices, by PMAT to MMM acquisition request listed files to be loaded, MMM receives the backward PMAT of request and returns local file list.After PMAT receives listed files to be uploaded, selected the file need uploaded to target machine by user, initiate to upload control command to MMM.After MMM receives this order, generate LUU header file according to listed files to be uploaded, and initiate upload operation to target machine.In upload procedure, MMM regularly sends upload operation state to PMAT, and PMAT sends acknowledgement state bag to MMM after receiving state bag.

If user needs to carry out media definitions download to certain equipment, after then needing download file title by user's appointment, PMAT initiates the order of media definitions downloading control, after MMM receives control command to MMM, generate LNR file according to specified file, and start to carry out down operation from intended target machine.In downloading process, MMM regularly sends down operation state to PMAT, and PMAT sends acknowledgement state bag to MMM after receiving state bag.

If user needs the self-defined download of certain operate person, then initiate the self-defined downloading control order of operator by PMAT to MMM, after MMM receives this order, starting to obtain from intended target machine can download file list, and reports can supply download file list to PMAT.User selects to need download file according to this download file list, and sends continuation down operation control command by PMAT to MMM.After MMM receives this order, continue the self-defined download of operator, and regularly send down operation state to PMAT, PMAT sends acknowledgement state bag to MMM after receiving state bag.

Uploading, media definitions downloads and in the self-defined down operation running of operator, if user needs termination to upload or down operation, then initiates terminating operation order, after MMM receives this order, according to ARINC615A protocol ends current operation by PMAT to MMM.

Wholely add in unloading operation process, all may there is the wait timeout problem that link exception, communication abnormality, network congestion etc. cause, need to arrange the waiting-timeout time, if exceed waiting time, PMAT does not receive the reply message of MMM yet, then add unloading and enter abnormality processing, because time-out time is relevant to network state, therefore the present invention proposes the mode to the setting of User Exploitation time-out time, so that user can carry out flexible configuration according to network state.

Claims (6)

1. onboard networks ARINC615A data add a control method for unloading, it is characterized in that, comprise following flow process:

1) user is by the list of devices of PMAT to MMM acquisition request Airborne Terminal equipment;

2) user selects needs to carry out adding the equipment of unloading operation by PMAT in list of devices, if this equipment had successfully carried out a FIND operation, then proceeds to step 4), otherwise, proceed to step 3),

3) user carries out FIND operation by PMAT to this equipment; If FIND success, then proceed to step 4), if FIND is unsuccessful, then proceed to step 2);

4) user adds unloading by PMAT to the equipment being successfully completed FIND operation, described in add that unloading comprises information, uploads, media definitions is downloaded and/or the self-defined download of operator;

5) add after unloading completes, user judges whether to also have the equipment needing to carry out adding unloading operation, if having, then proceeds to step 2); Otherwise this adds Unloading Control operation and terminates;

Wherein, in aforesaid operations flow process, between PMAT and MMM, the field of message format for communications is followed successively by type of message, message-length and message content;

The content-length of type of message and message-length is 2 bytes;

If the high byte in type of message 01, represent PMAT to the message of MMM, if 02, represent MMM to the message of PMAT; Low byte in type of message represents message ID number;

The length shared by content representation message content field of message-length.

2. control method according to claim 1, is characterized in that,

Communication information between PMAT and MMM comprises list of devices request, list of devices response, information operating request, information operating response, acquisition upload file list request, obtains upload file list response, upload operation request, media definitions download request, obtains file to be downloaded list request, obtains file to be downloaded list response, the self-defined download request of operator, state information and confirmation.

3. control method according to claim 2, is characterized in that, described PMAT is connected with MMM by Ethernet.

4. control method according to claim 3, is characterized in that, adds Unloading Control operation and completes based on udp protocol.

5. control method according to claim 4, is characterized in that, described PMAT is the PC being provided with Ethernet interface.

6. the control method according to claim 1 or 2 or 3 or 4 or 5, is characterized in that, described step 1) in, user is also provided with the waiting-timeout time t of PMAT;

Carry out at PMAT and MMM in the process of message communicating, if PMAT waits for that MMM replys message time more than t, then add unloading operation failure, terminate this and add Unloading Control operation.