CN115567510A - Method for improving on-track file annotating effectiveness - Google Patents
Method for improving on-track file annotating effectiveness Download PDFInfo
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- CN115567510A CN115567510A CN202211107675.7A CN202211107675A CN115567510A CN 115567510 A CN115567510 A CN 115567510A CN 202211107675 A CN202211107675 A CN 202211107675A CN 115567510 A CN115567510 A CN 115567510A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
Abstract
The invention discloses a method for improving the effectiveness of on-track file remarking, which comprises the following steps: dividing the upper note file into a plurality of upper note file segments, and sending the upper note file segments to a star management and control computer one by one through a ground operation and control system; the housekeeping control computer respectively identifies and judges each upper note file segment; the star management and control computer downloads the judged result to the ground operation and control system, and the ground operation and control system judges whether uploading the uploading file segment or the uploading file is required again according to the judged result; and if the uploading file segments or the uploading files need to be uploaded again, the ground transportation control system uploads the uploading file segments or the uploading files again, and then the steps are executed again until all the uploading file segments are correctly received by the star management and control computer. The method reduces the probability of error codes generated in the transmission process of the uplink file in the satellite-ground long link, and improves the efficiency, the correctness and the reliability of the uplink file.
Description
Technical Field
The invention relates to the field of combined aircrafts, and particularly provides a method for improving on-orbit file remarking effectiveness.
Background
In the combined aircraft load system, files such as a system blueprint, functional software, an algorithm, an operation configuration file and the like stored in a housekeeping computer are key file data supporting normal operation of the load system and are also key keys supporting on-track updating, blueprint deployment and function reconstruction of the load system. Whether the on-orbit update of the upper note files can be effectively finished is directly related to whether the load system can realize the highest value of the development type electronic comprehensive platform with loadable software and reconfigurable functions, and then the requirements of carrying out various new tests and new application verification tasks for a long time through the on-orbit update are met.
In the prior art, after the star management and control computer of the load system completes the file annotation, the annotated file is generally downloaded by a ground operation and control system, and whether the file has an error is determined by comparing the downloaded file with an original file. And when the file comparison finds that the file is wrong, the file is remarked again, the housekeeping management and control computer stores the remarked rename file in a covering manner and then downloads and compares the remarked file. This operation is repeated until the annotated file is determined to be correct.
The whole processes of uploading, downloading, comparing, retransmitting and the like of the file are performed through a large space-ground closed loop and a long link, error codes are easily generated in the transmission process of the information in the space-ground link, the correctness judgment of the file is influenced, meanwhile, the whole operation takes several minutes or even longer time, and when a machine of a load system running in the orbit is seriously occupied, the normal execution of other normal tasks in the orbit is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for improving the effectiveness of on-orbit file annotating, which reduces the probability of error code generation of the on-orbit file in the process of satellite-ground long-chain transmission, improves the correctness and reliability of file annotating, greatly shortens the time of file annotating, and effectively ensures the normal execution of on-orbit tasks.
The invention discloses a method for improving the on-orbit file annotating effectiveness, which comprises the following steps:
step 1: dividing the upper note file into a plurality of upper note file segments, and sending the upper note file segments to a star management and control computer one by one through a ground operation and control system;
step 2: the housekeeping control computer respectively identifies and judges each upper note file segment; each upper note file segment comprises a start data packet, a continuous data packet and an end data packet;
and 3, step 3: the star management and control computer downloads the judgment result to the ground transportation and control system, and the ground transportation and control system judges whether the uploading file segments or the uploading files need to be uploaded again according to the judgment result;
and 4, step 4: and if the uploading file segments or the uploading files need to be uploaded again, the ground transportation control system uploads the uploading file segments or the uploading files again, and then the steps 1 to 3 are executed again until all the uploading file segments are correctly received by the housekeeping computer.
Further, in the step 1, the start data packet, the continuous data packet and the end data packet of each upper note file segment are sequentially sent to the house administration and control computer;
the data formats of the start data packet, the continuous data packet and the end data packet comprise the accumulated sum, the auxiliary sequence count, the data type identifier and the data packet length.
Further, the step 2 comprises:
step 21: after receiving a complete upper annotation file segment sent by the ground operation and control system, the housekeeping management and control computer verifies the upper annotation file segment through a data format, and the step 22 is carried out after the verification is passed:
step 22: the star management and control computer identifies the data packet according to the sequence mark in the received data packet to obtain whether the data packet is a start data packet or a continuous data packet or an end data packet;
step 23: the star management and control computer judges whether the received start data packet or continuous data packet or end data packet has errors according to the continuity of the interior of the received data packet and the data format;
step 24: and completing the identification and judgment of the data packets in all the upper note file segments in the upper note file by analogy from the step 21 to the step 23.
Further, the step 22 includes:
if the sequence mark in the data packet received by the housekeeping computer is 01, the received data packet represents the starting data packet of the upper note file segment;
if the sequence mark in the data packet received by the housekeeping computer is 00, representing that the received data packet is a continuous data packet of the upper note file segment;
if the sequence mark in the upper note data packet received by the housekeeping computer is 10, the received upper note data packet represents that the upper note data packet is the end data packet of the upper note file segment.
Further, the step 23 includes:
when the start data packet is not found in the data packets received by the housekeeping computer or the start data packet is present but any one of the accumulated sum, the auxiliary sequence count, the data type and the data packet length is checked to be wrong, the upper note file segment loses the start data packet; directly setting the number of error packets as a preset value;
after the star management and control computer receives the packet numbers of all the continuous data packets in the upper note file segment and sequences, if the packet numbers are discontinuous, the star management and control computer judges that the upper note file segment loses the corresponding data continuous packets, or if any one of the accumulated sum, the auxiliary sequence count, the data type identifier and the data packet length is checked to be wrong, the upper note file segment continuous packets are wrong; adding the error packets into an error packet sequence, and adding 1 to the number of the error packets;
if the end data packet is not found in the data packets received by the housekeeping computer or the end data packet is found but any check error of the sum, the auxiliary sequence count, the data type and the data packet length is generated, the upper-noted file segment loses the end data packet; and directly setting the number of the error packets as a preset value.
Further, traversing the error packet queue, and taking data packets except the start data packet and the end data packet as invalid data packets; and if the data packet with the packet number smaller than that of the starting data packet or larger than that of the ending data packet exists in the upper-noted file segment, the data packet is considered to be an invalid packet and should be removed.
Further, the step 3 comprises:
when the number of the error packets is larger than or equal to the preset value, the ground operation and control system does not judge the number of the error packets any more, and the whole uploading file segment is directly uploaded again; otherwise, the ground operation and control system needs to upload the data packets corresponding to all the error packets again.
Due to the adoption of the technical scheme, the invention has the following advantages: the correctness and the reliability of the upper note of the data file are effectively ensured through the file subsection uploading, verification and retransmission; the timeliness of the data file uploading is improved, the file uploading time is shortened, and the file uploading efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments described in the embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the drawings.
Fig. 1 is a flowchart illustrating a method for improving on-track file annotation validity according to an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples, it being understood that the examples described are only some of the examples and are not intended to be exhaustive. All other embodiments available to those of ordinary skill in the art are intended to be within the scope of the embodiments of the present invention.
Referring to fig. 1, an embodiment of a method for improving the efficiency of on-track file posting according to the present invention includes the following steps:
s1: dividing the upper note file into a plurality of upper note file segments, and sending the upper note file segments to a star management and control computer one by one through a ground operation and control system;
s2: the housekeeping control computer respectively identifies and judges each upper note file segment; each upper note file segment comprises a start data packet, a continuous data packet and an end data packet;
s3: the star management and control computer downloads the judgment result to the ground transportation and control system, and the ground transportation and control system judges whether the uploading file segments or the uploading files need to be uploaded again according to the judgment result;
s4: and if the uploading file segments or the uploading files need to be uploaded again, the ground transportation control system uploads the uploading file segments or the uploading files again, and then the S1 to the S3 are executed again until all the uploading file segments are correctly received by the star administration and control computer.
In this embodiment, in S1, the start data packet, the continuous data packet, and the end data packet of each upper note file segment are sequentially sent to the house administration and control computer;
the data formats of the start packet, the consecutive packets and the end packet each include an accumulated sum, a secondary sequence count, a data type identifier and a packet length.
Specifically, the present embodiment provides a format of the remark data, as shown in table 1.
TABLE 1 Note data Format
In this embodiment, S2 includes:
s21: after receiving a complete upper annotation file segment sent by the ground operation and control system, the housekeeping management and control computer verifies the upper annotation file segment through a data format, and the step S22 is carried out after the verification is passed:
s22: the star management and control computer identifies the data packet according to the sequence mark in the received data packet to obtain whether the data packet is a start data packet or a continuous data packet or an end data packet;
s23: the housekeeping computer judges whether the received start data packet or continuous data packet or end data packet has errors according to the continuity of the interior of the received data packet and the data format;
s24: and completing the identification and judgment of the data packets in all the upper note file segments in the upper note file by analogy from S21 to S23.
In this embodiment, S22 includes:
if the sequence mark in the data packet received by the housekeeping computer is 01, the received data packet represents the starting data packet of the upper note file segment;
if the sequence mark in the data packet received by the housekeeping computer is 00, representing that the received data packet is a continuous data packet of the upper note file segment;
and if the sequence mark in the upper note data packet received by the housekeeping computer is 10, the received upper note data packet represents that the upper note data packet is the end data packet of the upper note file segment.
In this embodiment, S23 includes:
when the start data packet is not found in the data packets received by the housekeeping computer or the start data packet is found but any one of the check errors of the summation, the auxiliary sequence counting, the data type and the data packet length exist, the upper-noted file segment loses the start data packet; directly setting the number of error packets as a preset value; the preset value can be adjusted and determined according to specific practical conditions.
After sorting the packet numbers of all the continuous data packets in the upper note file segment received by the housekeeping computer, if the packet numbers are discontinuous, judging that the upper note file segment loses the corresponding data continuous packet, or if any one of the check errors of the accumulated sum, the auxiliary sequence count, the data type identifier and the data packet length is detected, judging that the upper note file segment has the continuous packet error; adding the error packets into an error packet sequence, and adding 1 to the number of the error packets;
if the end data packet is not found in the data packets received by the housekeeping computer or the end data packet is found but any check error of the sum, the auxiliary sequence count, the data type and the data packet length is generated, the upper-noted file segment loses the end data packet; and directly setting the number of the error packets as a preset value.
In this embodiment, the error packet queue is traversed, and data packets other than the start data packet and the end data packet are used as invalid data packets; and if the data packet with the packet number smaller than that of the starting data packet or larger than that of the ending data packet exists in the upper-noted file segment, the data packet is considered to be an invalid packet and should be removed.
In this embodiment, S3 includes:
when the number of the error packets is larger than or equal to the preset value, the ground operation control system does not judge the number of the error packets any more, and the whole uploading file segment is directly uploaded again; otherwise, the ground operation and control system needs to upload the data packets corresponding to all the error packets again.
The method is applied to a combined aircraft load system, and verifies that the load system is reconstructed by performing on-track updating on files such as a system blueprint, functional software, an algorithm, an operation configuration file and the like through file annotation, and a verification result shows that the 100Mb files can perform annotation in tens of seconds or even shorter time, so that the annotation time of tens of seconds or even minutes in the prior art is greatly shortened, and the effectiveness of the annotation files is powerfully improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (7)
1. A method for improving the effectiveness of on-track file annotation comprises the following steps:
step 1: dividing the upper note file into a plurality of upper note file segments, and sending the upper note file segments to a star management and control computer one by one through a ground operation and control system;
and 2, step: the housekeeping computer identifies and judges each upper annotated document segment; each upper note file segment comprises a start data packet, a continuous data packet and an end data packet;
and 3, step 3: the star management and control computer downloads the judgment result to the ground transportation and control system, and the ground transportation and control system judges whether the uploading file segments or the uploading files need to be uploaded again according to the judgment result;
and 4, step 4: and if the uploading file segments or the uploading files need to be uploaded again, the ground transportation control system uploads the uploading file segments or the uploading files again, and then the steps 1 to 3 are executed again until all the uploading file segments are correctly received by the housekeeping computer.
2. The method of claim 1, wherein in step 1, the start data packet, the continuous data packet and the end data packet of each upper note file segment are sequentially sent to the housekeeping computer;
the data formats of the start packet, the consecutive packets and the end packet each include an accumulated sum, an auxiliary sequence count, a data type identifier and a packet length.
3. The method of claim 2, wherein step 2 comprises:
step 21: after receiving a complete upper note file segment sent by the ground operation and control system, the housekeeping management and control computer verifies the upper note file segment through a data format, and the step 22 is carried out after the verification is passed:
step 22: the star management and control computer identifies the data packet according to the sequence mark in the received data packet to obtain whether the data packet is a start data packet or a continuous data packet or an end data packet;
step 23: the housekeeping computer judges whether the received start data packet or continuous data packet or end data packet has errors according to the continuity of the interior of the received data packet and the data format;
step 24: and completing the identification and judgment of the data packets in all the upper note file segments in the upper note file by analogy from the step 21 to the step 23.
4. The method of claim 3, wherein the step 22 comprises:
if the sequence mark in the data packet received by the housekeeping computer is 01, the received data packet represents the start data packet of the upper note file segment;
if the sequence mark in the data packet received by the housekeeping computer is 00, the received data packet represents that the data packet is a continuous data packet of the upper note file segment;
and if the sequence mark in the upper note data packet received by the housekeeping computer is 10, the received upper note data packet represents that the upper note data packet is the end data packet of the upper note file segment.
5. The method of claim 4, wherein the step 23 comprises:
when the start data packet is not found in the data packets received by the housekeeping computer or the start data packet is present but any one of the accumulated sum, the auxiliary sequence count, the data type and the data packet length is checked to be wrong, the upper note file segment loses the start data packet; directly setting the number of error packets as a preset value;
after sorting the packet numbers of all the continuous data packets in the upper note file segment received by the housekeeping computer, if the packet numbers are discontinuous, judging that the upper note file segment loses the corresponding data continuous packet, or if any check error in the accumulation sum, the auxiliary sequence count, the data type identifier and the data packet length exists, judging that the upper note file segment has a continuous packet error; adding the error packets into an error packet sequence, and adding 1 to the number of the error packets;
if the ending data packet is not found in the data packets received by the housekeeping computer or the ending data packet exists but any one of the verification errors of the summation, the auxiliary sequence counting, the data type and the data packet length are found, the upper note file segment loses the ending data packet; and directly setting the number of the error packets as a preset value.
6. The method of claim 5, wherein after step 2 and before step 3, the method further comprises:
traversing the error packet queue, and taking data packets except the start data packet and the end data packet as invalid data packets; and if the data packet with the packet number smaller than that of the starting data packet or larger than that of the ending data packet exists in the upper-noted file segment, the data packet is considered to be an invalid packet and should be removed.
7. The method of claim 6, wherein step 3 comprises:
when the number of the error packets is larger than or equal to the preset value, the ground operation control system does not judge the number of the error packets any more, and the whole uploading file segment is directly uploaded again; otherwise, the ground operation and control system needs to upload the data packets corresponding to all the error packets again.
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