CN112968817B - Packet loss data statistical method and terminal in digital information transmission - Google Patents
Packet loss data statistical method and terminal in digital information transmission Download PDFInfo
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- CN112968817B CN112968817B CN202110318329.2A CN202110318329A CN112968817B CN 112968817 B CN112968817 B CN 112968817B CN 202110318329 A CN202110318329 A CN 202110318329A CN 112968817 B CN112968817 B CN 112968817B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Abstract
The invention discloses a packet loss data statistical method and a terminal in digital information transmission, when counting packet loss of uploaded second data, the packet loss data statistics of the second data can be carried out according to a first packet loss data statistical result of received first data and the second data, so that the integrity statistics of the uploaded data packet can be completed only by carrying out statistics according to the data packet in the second data and the first packet loss data statistical result of the received first data without carrying out statistics on the uploaded data packet in total number of the complete data packet every time, the problem of low statistical efficiency caused by the fact that the statistics needs to be carried out through the total number of the complete data packet every time of packet supplement is avoided, and the efficiency of the packet loss data statistics in digital information transmission is greatly improved.
Description
Technical Field
The present invention relates to the field of digital information transmission, and in particular, to a packet loss data statistics method and terminal in digital information transmission.
Background
In the field of digital information transmission, particularly in the energy transmission industry, since the field environment of a transmission path needs to be monitored, a monitoring device is generally installed on a transmission tower. The monitoring devices are accessed into a master station system through a mobile network (3G/4G/5G), the monitoring devices take pictures of a field environment according to a snapshot strategy set by the system, then the pictures are reported to the master station according to a communication protocol of general technical specifications of power transmission line state monitoring devices or on-line monitoring communication protocols and information interaction specifications of power transmission lines, and as data messages can be lost in the transmission process of the monitoring devices, the transmission specifications of the supplementary package data are defined in the communication protocol, so that the integrity of the transmission of the picture or file data is guaranteed. After receiving the end instruction sent by the device, the master station needs to count the received data message and notify the device: the number of messages which are not received by the master station and the corresponding message sequence numbers, however, a large number of important power transmission poles are located in remote areas and in environments with very bad network environments, a large number of lost packets occur, data integrity statistics needs to be carried out on the same data for many times, and the whole message file needs to be detected when integrity statistics is carried out every time, so that the message counting efficiency of the master station is greatly reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a packet loss data statistical method and a terminal in digital information transmission are provided to improve the efficiency of statistical data messages.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a statistical method of packet loss data in digital information transmission comprises the following steps:
receiving second data uploaded by a sending end;
performing packet loss data statistics on the second data according to a first packet loss data statistical result of the received first data and the second data to obtain a second packet loss data statistical result;
and updating the first packet loss data statistical result according to the second packet loss data statistical result.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a packet loss data statistical method in digital information transmission and a terminal thereof comprise a memory, a processor and a computer program which is stored on the memory and can be run on the processor, wherein the processor executes the computer program to realize each step in the packet loss data statistical method in digital information transmission.
The invention has the beneficial effects that: when the packet loss of the uploaded second data is counted, the packet loss data of the second data can be counted according to the first packet loss data counting result of the received first data and the second data, so that the uploaded data does not need to be counted according to the total number of the complete data packets every time the integrity of the uploaded data is counted, the counting of the integrity of the uploaded data can be completed only by counting according to the data packets in the second data and the first packet loss data counting result of the received first data, the problem of low counting efficiency caused by the fact that the total number of the complete data packets needs to be counted when the packets are supplemented every time is solved, and the efficiency of counting the packet loss data in digital information transmission is greatly improved.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for counting packet loss data in digital information transmission according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating another step of a method for counting packet loss data in digital information transmission according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating another step of a method for counting packet loss data in digital information transmission according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a packet loss data statistics terminal in digital information transmission according to an embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a method for counting packet loss data in digital information transmission includes the steps of:
receiving second data uploaded by a sending end;
performing packet loss data statistics on the second data according to a first packet loss data statistical result of the received first data and the second data to obtain a second packet loss data statistical result;
and updating the first packet loss data statistical result according to the second packet loss data statistical result.
As can be seen from the above description, the beneficial effects of the present invention are: when the packet loss of the uploaded second data is counted, the packet loss data of the second data can be counted according to the first packet loss data counting result of the received first data and the second data, so that the uploaded data does not need to be counted according to the total number of the complete data packets every time when the integrity of the uploaded data packets is counted, the counting of the integrity of the uploaded data can be completed only by counting according to the data packets in the second data and the first packet loss data counting result of the received first data, the problem of low counting efficiency caused by the fact that the total number of the complete data packets needs to be counted when the packets are supplemented every time is solved, and the efficiency of the master station for counting the uploaded data is greatly improved.
Further, before receiving the second data uploaded by the sending end, the method includes the steps of:
receiving a data uploading request sent by a sending terminal, and sending response information to the sending terminal according to the data uploading request;
setting the number of packets to be supplemented, a packet supplementing sequence number list and a corresponding storage space according to the total number of the data packets of the data to be transmitted, which are acquired by the data uploading request;
setting one-to-one correspondence between the index number of the storage space and the serial number of the data packet;
the receiving the second data uploaded by the sending end comprises:
when a data packet is received, storing the data packet to a position corresponding to the storage space according to the corresponding index number;
the packet loss data statistics of the second data according to the first packet loss data statistics result of the received first data and the second data includes:
when a data uploading ending mark instruction sent by the sending end is received, determining whether packet loss data statistics is performed for the first time according to the total number of the data packets and the number of packets needing to be supplemented, and if yes, performing packet loss data statistics on the second data according to the storage space to obtain a second packet loss data statistical result;
if not, performing packet loss data statistics on the second data according to the packet supplementing sequence number list and the storage space to obtain a second packet loss data statistical result.
According to the description, the request of the sending terminal is responded, the corresponding storage space, the number of the packets to be supplemented and the packet supplementing sequence number list are set according to the data uploading request, the subsequent statistics and storage of the uploaded data are facilitated, and whether the uploading is the first statistics or not is determined according to the total number of the data packets and the number of the packets to be supplemented, so that the data packets are counted by adopting different counting methods, and the data counting efficiency is improved.
Further, setting the initial value of the number of the packets to be supplemented as the total number of the data packets of the data to be transmitted;
the determining whether to count the first packet loss data according to the total number of the data packets and the number of the packets needing to be supplemented comprises:
judging whether the total number of the data packets is equal to the number of the packets to be supplemented, if so, counting packet loss data for the first time;
and if not, counting the data of the non-first packet loss.
According to the description, whether the first statistics and the non-first statistics are the same or not is judged by judging whether the total number of the data packets is equal to the number of the packets needing to be supplemented or not, and whether the first statistics is the first statistics or not is accurately judged.
Further, the updating the first packet loss data statistical result according to the second packet loss data statistical result includes:
and judging whether the packet loss data statistics is the first packet loss data statistics, if so, updating the number of the packets to be supplemented and a packet supplementing sequence number list according to the storage space, and if not, updating the number of the packets to be supplemented and the packet supplementing sequence number list according to the packet supplementing sequence number list and the storage space.
According to the description, when the data is the data statistics of the first packet loss, the number of the packets to be supplemented and the packet supplementing sequence number list are updated according to the storage space, and when the data is not the data statistics of the first time, the number of the packets to be supplemented and the packet supplementing sequence number list are updated according to the packet supplementing sequence number list and the storage space, so that the complete storage space does not need to be counted during the packet supplementing statistics, and the statistics efficiency of the packet supplementing data is improved.
Further, setting the initial value of the packet complementing sequence number list as a null list;
the updating the number of the packets to be supplemented and the list of the sequence numbers of the packets to be supplemented according to the storage space comprises:
traversing the position corresponding to each index number of the storage space;
and for the traversed position, detecting whether the position stores data packets, if so, subtracting one from the number of the packets needing to be supplemented, and if not, adding the index number corresponding to the position to the packet supplementing sequence number list.
According to the description, the detection of the whole storage space is realized by traversing the position corresponding to each index number of the storage space and updating the number of the packets to be supplemented and the packet supplementing sequence number list, so that the complete packet supplementing sequence number list is obtained, and the accuracy and the integrity of uploaded data statistics are improved.
Further, the updating the number of packets to be supplemented and the packet supplementing sequence number list according to the packet supplementing sequence number list and the storage space includes:
traversing the sequence numbers in the packet complementing sequence number list;
and for the traversed sequence numbers, detecting whether data packets are stored in corresponding positions in the storage space or not according to the sequence numbers, if so, reducing the number of the packets to be supplemented by one, and removing the sequence numbers from the packet supplementing sequence number list.
According to the description, the uploaded packet supplementing data are detected according to the sequence numbers in the packet supplementing sequence number list, so that the integrity statistics of the packet supplementing data is performed at each time, the uploaded data do not need to be counted according to the total number of the complete data packets, the packet supplementing data only need to be counted according to the packet supplementing sequence number list generated according to the statistics result of the data packets last time, the problem of low statistical efficiency caused by the fact that the total number of the complete data packets needs to be counted when the packets are supplemented at each time is solved, and the efficiency of the master station for counting the uploaded data is greatly improved.
Further, the method also comprises the following steps:
and judging whether the packet supplementing sequence number list is empty or not, if not, sending the packet supplementing sequence number list to the sending end for packet supplementing, and returning to execute the step of receiving the second data uploaded by the sending end until the packet supplementing sequence number list is empty.
According to the above description, by judging whether the packet supplementing sequence number list is empty or not, and when the packet supplementing sequence number list is not empty, the packet supplementing sequence number list is sent to the sending end to perform repeated packet supplementing and counting, a complete data packet can be finally obtained, so that the data can be completely uploaded and stored.
Referring to fig. 4, another embodiment of the present invention provides a packet loss data statistics terminal in digital information transmission, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps in packet loss data statistics in digital information transmission.
Example one
Referring to fig. 1 and fig. 2, a method for counting packet loss data in digital information transmission includes the steps of:
s1, receiving second data uploaded by a sending end;
specifically, the receiving end is provided with an access module for performing signaling interaction control with the sending end and receiving and processing data such as pictures, videos and files;
the method for receiving the second data uploaded by the sending end comprises the following steps:
receiving a data uploading request sent by a sending end, and sending response information to the sending end according to the data uploading request; setting the number of packets to be supplemented, a packet supplementing sequence number list and a corresponding storage space according to the total number of the data packets of the data to be transmitted, which is acquired by the data uploading request;
setting one-to-one correspondence between the index number of the storage space and the serial number of the data packet;
setting the initial value of the number of the packets to be supplemented as the total number of the data packets of the data to be transmitted;
setting the initial value of the packet supplementing sequence number list as an empty list;
specifically, the data uploading request instruction sent by the sending end comprises a terminal ID, photographing time, a channel number, a preset bit number and the total number of the picture data packets; after receiving the instruction, the access module firstly responds according to a protocol, then allocates corresponding data storage spaces according to the total number of the data packets, if the total number of the received data packets is m, the access module correspondingly generates m data storage spaces, each data storage space comprises a data length record and a data packet data storage, and the initial value of the storage data length is zero;
wherein the receiving the second data uploaded by the sending end comprises:
when a data packet is received, storing the data packet to a position corresponding to the storage space according to the corresponding index number;
specifically, after receiving a data packet with a sequence number m, the access module stores the data packet to a position with an index number m corresponding to the storage space, and the data length is updated to the length of the data packet;
s2, performing packet loss data statistics on the second data according to a first packet loss data statistical result of the received first data and the second data to obtain a second packet loss data statistical result;
specifically, when a data uploading ending mark instruction sent by the sending end is received, whether packet loss data statistics is performed for the first time is determined according to the total number of the data packets and the number of packets to be complemented, if yes, packet loss data statistics is performed on the second data according to the storage space, and a second packet loss data statistical result is obtained; if not, performing packet loss data statistics on the second data according to the packet supplementing sequence number list and the storage space to obtain a second packet loss data statistical result; wherein, the determining whether to count the data to be lost for the first time according to the total number of the data packets and the number of the packets to be supplemented comprises:
judging whether the total number of the data packets is equal to the number of the packets needing to be supplemented, if so, counting the packet loss data for the first time; if not, counting non-first-time packet loss data;
if the total number of the data packets is 100 data packets and the number of the data packets needing to be supplemented is 50 data packets, counting the data which are not lost for the first time, and if the number of the data packets needing to be supplemented is 100 data packets, counting the data which are lost for the first time;
and S3, updating the first packet loss data statistical result according to the second packet loss data statistical result.
Example two
This embodiment specifically defines how to update the data statistics:
the updating the number of the packets needing to be complemented and the list of the sequence numbers of the packets needing to be complemented according to the storage space comprises the following steps:
traversing the position corresponding to each index number of the storage space; for the traversed position, detecting whether the position stores a data packet, if so, subtracting one from the number of the packets needing to be supplemented, and if not, adding the index number corresponding to the position to the packet supplementing sequence number list;
specifically, counting is started according to the index position with the sequence number of 1 corresponding to the storage space during first counting, whether the length of the storage data of the index position with the sequence number of 1 is greater than zero is detected, if so, the data packet with the sequence number of 1 is received, and the number of the packets to be supplemented is reduced by one; if the number is equal to zero, the data packet with the sequence number of 1 is not received, and the sequence number of 1 is added into the packet complementing sequence number list; the detection step is carried out on the index position with the sequence number of 2, and the position corresponding to each index number of the storage space is traversed by the same way;
wherein, the updating the number of the packets to be supplemented and the packet supplementing sequence number list according to the packet supplementing sequence number list and the storage space comprises:
traversing the sequence numbers in the packet complementing sequence number list; for the traversed sequence numbers, detecting whether data packets are stored in corresponding positions in the storage space or not according to the sequence numbers, if so, reducing the number of the packets to be supplemented by one, and removing the sequence numbers from the packet supplementing sequence number list;
specifically, when the statistics is not performed for the first time, if the list of the sequence numbers of the supplementary packets is: {2.3.4.6.8.9.10}, counting from the index position with sequence number 2 corresponding to the storage space, detecting whether the storage data length of the index position with sequence number 2 is greater than zero, if so, indicating that the data packet with sequence number 2 has been received, reducing the number of packets to be complemented by one, and removing sequence number 2 from the packet complementing sequence number list to obtain an updated packet complementing sequence number list, wherein: {3.4.6.8.9.10}, if equal to zero, it indicates that the data packet with sequence number 2 has not been received; and after the detection of the index position with the sequence number 2 is finished, the detection step is carried out on the index position with the sequence number 3, and the sequence numbers in the supplementary packet sequence number list are traversed in the same way.
EXAMPLE III
The embodiment further defines how to perform the packet complementing retransmission;
referring to fig. 3, judging whether the packet complementing sequence number list is empty, if not, sending the packet complementing sequence number list to the sending end for packet complementing, and returning to the step of receiving the second data uploaded by the sending end until the packet complementing sequence number list is empty;
if the current list of the number of the supplementary packets is: {1.2.3.4.8.9.10}, at this time, the receiving end sends the complementary packet sequence number list to the transmitting end for complementary packet, and re-receives complementary packet data sent by the transmitting end, where the received complementary packet data is: {1.2.3.4.8.9.10}, if the supplementary packet sequence number list obtained by counting again is empty, the picture is completely uploaded;
the embodiment provides a specific application scenario, when a sending end sends data to a receiving end as pictures, the pictures are divided into 3000 data packets to be sent; after a sending end sends a picture data uploading request, a receiving end sets 3000 corresponding storage spaces according to the total number of received data packets, the index numbers corresponding to the storage spaces correspond to the sequence numbers of the data packets one by one, and the number of packets to be supplemented is set to 3000;
a receiving end receives data uploaded by a sending end, and when a data uploading end marking instruction sent by the sending end is received, the data is counted, the current number of the supplementary packets is equal to the total number of the data packets, so that the first counting is performed for the first time, if 250 data packets are detected to be lost, a supplementary packet sequence number list formed by the 250 data packets is sent to the sending end for supplementary packet uploading, when the data uploading end marking instruction sent by the sending end is received again, the data is counted, and because the current number of the supplementary packets is not equal to the total number of the data packets, the non-first counting is performed for the non-first time, and the non-first counting step is performed until the counting result is that the supplementary packet sequence number list is empty;
if the traditional statistical method is adopted, the receiving end still detects whether the data is received one by one based on 3000 data storage spaces, namely 3000 times of repeated detection are needed, and the total of 6000 times of detection are carried out through first-time statistics and supplementary packet statistics;
by adopting the statistical method in the technical scheme, the statistics of the packet adding and supplementing for the first time is 3250 times of detection in total, so that the times of packet loss detection of data statistics are greatly reduced, and if the data supplementing is carried out for multiple times, the times of packet loss detection reduced in the packet loss process are counted more.
Example four
Referring to fig. 4, a packet loss data statistics terminal in digital information transmission includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement each step in the packet loss data statistics method in digital information transmission according to any one of the first to third embodiments.
In summary, according to the packet loss data statistics method and the terminal in digital information transmission provided by the present invention, it is determined whether the statistics is the first packet loss data statistics according to the total number of data packets and the number of packets to be supplemented, and when the uploaded data is not the first upload, and the second data which is not the first upload is subjected to packet loss statistics, the number of packets to be supplemented and the packet supplement sequence number list can be updated according to the packet supplement sequence number list and the storage space, so that the integrity statistics of the uploaded data can be completed only by performing statistics according to the packet supplement sequence number list and the storage space without performing statistics on the uploaded data by the data in the complete storage space every time of integrity statistics on the uploaded data packet, thereby avoiding the problem of low statistical efficiency due to the fact that the statistics needs to be performed by the data in the complete storage space every time of packet supplement, and when the statistics result is not zero, the packet supplement list can be sent to the sending end for packet supplement, thereby greatly improving the efficiency of packet loss data statistics in digital information transmission.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the accompanying drawings, which are directly or indirectly applied to the related technical fields, are included in the scope of the present invention.
Claims (7)
1. A statistical method of packet loss data in digital information transmission is characterized by comprising the following steps:
receiving second data uploaded by a sending end;
performing packet loss data statistics on the second data according to a first packet loss data statistical result of the received first data and the second data to obtain a second packet loss data statistical result;
updating the first packet loss data statistical result according to the second packet loss data statistical result;
the method for receiving the second data uploaded by the sending end comprises the following steps:
receiving a data uploading request sent by a sending end, and sending response information to the sending end according to the data uploading request;
setting the number of packets to be supplemented, a packet supplementing sequence number list and a corresponding storage space according to the total number of the data packets of the data to be transmitted, which is acquired by the data uploading request;
setting one-to-one correspondence between the index number of the storage space and the serial number of the data packet;
the receiving the second data uploaded by the sending end comprises:
when a data packet is received, storing the data packet to a position corresponding to the storage space according to the corresponding index number;
the packet loss data statistics of the second data according to the first packet loss data statistics result of the received first data and the second data includes:
when a data uploading end marking instruction sent by the sending end is received, determining whether packet loss data statistics is performed for the first time according to the total number of the data packets and the number of packets needing to be supplemented, if so, performing packet loss data statistics on the second data according to the storage space to obtain a second packet loss data statistical result;
if not, performing packet loss data statistics on the second data according to the packet supplementing sequence number list and the storage space to obtain a second packet loss data statistical result.
2. The method according to claim 1, wherein the initial value of the number of packets to be supplemented is set to the total number of data packets of the data to be transmitted;
the determining whether the packet loss data statistics is the first packet loss data statistics according to the total number of the data packets and the number of the packets needing to be supplemented comprises the following steps:
judging whether the total number of the data packets is equal to the number of the packets to be supplemented, if so, counting packet loss data for the first time;
and if not, counting the data of the non-first packet loss.
3. The method of claim 1, wherein the updating the first packet loss data statistic result according to the second packet loss data statistic result comprises:
and judging whether the packet loss data statistics is the first packet loss data statistics, if so, updating the number of the packets to be supplemented and a packet supplementing sequence number list according to the storage space, and if not, updating the number of the packets to be supplemented and the packet supplementing sequence number list according to the packet supplementing sequence number list and the storage space.
4. The method according to claim 3, wherein the initial value of the packet complementing sequence number list is set to be an empty list;
the updating the number of the packets needing to be complemented and the list of the sequence numbers of the packets needing to be complemented according to the storage space comprises the following steps:
traversing the position corresponding to each index number of the storage space;
and for the traversed position, detecting whether the position stores data packets, if so, subtracting one from the number of the packets needing to be supplemented, and if not, adding the index number corresponding to the position to the packet supplementing sequence number list.
5. The method according to claim 3, wherein the updating the number of packets to be supplemented and the packet supplement sequence number list according to the packet supplement sequence number list and the storage space comprises:
traversing the sequence numbers in the packet complementing sequence number list;
and for the traversed sequence number, detecting whether a data packet is stored in a corresponding position in the storage space or not according to the sequence number, if so, reducing the number of the packets needing to be supplemented by one, and removing the sequence number from the packet supplementing sequence number list.
6. The method for statistics of packet loss data in digital information transmission according to any of claims 1 to 5, further comprising the steps of:
and judging whether the packet supplementing sequence number list is empty or not, if not, sending the packet supplementing sequence number list to the sending end for packet supplementing, and returning to execute the step of receiving the second data uploaded by the sending end until the packet supplementing sequence number list is empty.
7. A packet loss data statistics terminal in digital information transmission, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the packet loss data statistics method in digital information transmission according to any one of claims 1 to 6.
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