CN115696614A - Base station data continuous transmission method, system and storage medium for offshore communication interruption - Google Patents
Base station data continuous transmission method, system and storage medium for offshore communication interruption Download PDFInfo
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Abstract
The invention provides a method, a system and a storage medium for continuously transmitting base station data for offshore communication interruption, wherein the method comprises the following steps: acquiring ship data, performing characteristic analysis and classification processing on the acquired ship data, and determining data priority; adding timestamp information to the processed data, and sorting and storing the processed data according to the priority; the connection base station determines a continuous transmission user, records the connection duration of the user and determines continuous transmission data; calculating the maximum sending rate of the continuous transmission data, and allocating the continuous transmission rate to each user; and continuing data transmission according to the continuous transmission rate. The technical scheme of the invention can realize the optimization processing of the continuous transmission of the historical data of the periodically broadcast information, solves the problem of conflict between the historical data and the real-time data caused by network bandwidth, and can improve the timeliness of the continuous transmission of the historical data under the condition of not influencing the real-time data.
Description
Technical Field
The present invention relates to the field of maritime communications technologies, and in particular, to a method, a system, and a storage medium for continuously transmitting base station data for maritime communications interruption.
Background
The maritime communication system is a system for mutually and automatically exchanging information among ships from an automatic ship identification system (AIS) to a very high frequency data exchange system (VDES) and then to a future full digital broadband communication system, and the main exchange information comprises the current navigation state, ship information, user data and the like. The maritime communication base station is used for receiving position information of a coastal ship and providing position information of the ship for a service provider, the service provider can provide services such as ship sailing tracks and ship real-time states for users by using the data, and in order to better receive the ship data, the maritime communication base station is generally arranged on iron towers, building roofs, mountain tops and the like near the coast, the environment is complex, and the situation of network interruption often occurs, so that the base station is required to realize the function of data continuous transmission during the communication interruption period after network recovery, so that the service provider does not have loss when providing the ship sailing tracks and cannot influence the display of the ship real-time data.
Disclosure of Invention
In light of the above-mentioned technical problems, a method, a system and a storage medium for continuing to transmit base station data for marine communication interruption are provided. The invention can analyze the current network flow, predict the real-time data flow, reasonably distribute network resources by recording the network connection state, extract historical data by an algorithm under the condition of not influencing the real-time data transmission and continuously transmit the historical data during the communication interruption period.
The technical means adopted by the invention are as follows:
a base station data continuous transmission method for maritime communication interruption comprises the following steps:
acquiring ship data, performing characteristic analysis and classification processing on the acquired ship data, and determining data priority;
adding timestamp information to the processed data, and sorting and storing the processed data according to the priority;
the connection base station determines a continuous transmission user, records the connection duration of the user and determines continuous transmission data;
calculating the maximum sending rate of the continuous transmission data, and distributing the continuous transmission rate for each user;
and continuing data transmission according to the continuous transmission rate.
Further, the acquiring ship data, performing feature analysis and classification processing on the acquired ship data, and determining data priority includes:
analyzing the received ship data, extracting ship identification, and dividing the data into x priority levels L according to a transmission channel, a data type and user level information 1 ，L 2 ，…，L x 。
Further, the adding timestamp information to the processed data and storing the processed data in a priority order includes:
and storing the data in a two-dimensional form, wherein the horizontal axis is time, the vertical axis is ship identification, and the data stored under each ship identification is stored according to priority.
Further, the method for determining the user to continuously transmit and recording the user connection duration by the connected base station includes:
recording the number of connections N at the same time for the users who have established network connections with the base station IP When the network connection is interrupted, recording UTC time stamp T when the user is disconnected IPlx (ii) a Recording user reconnect timestamp as T when connection is restored IPcx (ii) a Before the historical data is not continuously transmitted, the user may have the situation that the communication is interrupted and reconnected for many times, and in this situation, a plurality of groups of T are recorded IPlx And T IPcx Each group T IPlx And T IPcx Require historical data corresponding to x priorities, i.e. L needs to be recorded every time communication is interrupted 1 T of IPlxl1 And T IPcxl1 、L 2 T of IPlxl2 And T IPcxl2 、…、L x T of IPlxlx And T IPcxlx Recording the communication interruption reconnection time set of the nth user as T IPn 。
Further, the calculating a maximum sending rate of the continuous transmission data and allocating a continuous transmission rate to each user includes:
recording the real-time data receiving rate of the base station as T SS ；
Recording the total bandwidth of the base station transmission data obtained by network monitoring as P Z ；
Calculating the maximum sending rate P of continuous transmission data BF ，P BF ＝P Z -P SS 。
Further, the calculating a maximum transmission rate of the continuous transmission data and allocating a continuous transmission rate to each user further includes:
when the data continuously transmitted for a plurality of users exist at the same time, the data amount of the users continuously transmitted at the same time is recorded as n, and all continuously transmitted data share the maximum sending rate P BF Then calculate the maximum sending rate P of the continuous transmission data BF ，P BF ＝P IP1 +P IP2 +…+P IPn 。
Further, the resuming the data according to the resuming rate includes:
when a recorded user m accesses the base station again, the communication interruption time T between the user m and the base station is obtained IPm And calculating available sending rate P for the user to continue transmitting data IPm ；
Continuously transmitted data of each connection is transmitted from high to low according to priority, and the available sending rate P of the continuously transmitted data of the user is recalculated every time T of transmission IPm And updating the communication interruption time to the time point of not continuously transmitting the data until all the data are continuously transmitted.
Further, the sending rate P which can be used by the user for continuously transmitting the data is calculated IPm The method comprises the following steps:
the users with high priority data needing to be reissued can occupy higher transmission bandwidth, and the weight of the occupied transmission data bandwidth is set as W according to the priority 1 ，W 2 ，…，W x ；
Allocating different occupied bandwidth weights V according to different user grades 1 ，V 2 ，…；
Let the transmission weight of each user be W IPm ×V IPm And the percentage of continuous transmission bandwidth that each user can occupy is recorded as S IPm ，
From this, P can be derived IPm ＝P BF ×S IPm I.e. the available continuous transmission data rate for connection m is P IPm 。
The invention also provides a system for continuously transmitting the base station data for the offshore communication interruption, which comprises the following components:
the data processing unit is used for acquiring ship data, performing characteristic analysis and classification processing on the acquired ship data, and determining the priority of the data;
the data storage unit is used for adding timestamp information to the processed data and storing the data according to the priority sequence;
the connection management unit is used for connecting the base station to determine the continuous transmission user, recording the connection storage duration of the user and determining continuous transmission data;
the flow control unit is used for calculating the maximum sending rate of the continuous transmission data and distributing the continuous transmission rate to each user;
and the data continuous transmission unit is used for continuously transmitting the data according to the continuous transmission rate.
A computer-readable storage medium having a set of computer instructions stored therein; the set of computer instructions, when executed by the processor, implement the above-described method for resuming transmission of base station data for an outage of maritime communications.
Compared with the prior art, the invention has the following advantages:
1. the base station data continuous transmission method for the offshore communication interruption can analyze the current network flow, predict the real-time data flow, reasonably distribute network resources and extract historical data through an algorithm to continuously transmit the historical data during the communication interruption period under the condition of not influencing the real-time data transmission by recording the network connection state.
2. The base station data continuous transmission method for the offshore communication interruption realizes the complementary transmission of the network interruption data according to the priority without influencing the real-time data reporting of the base station, and reduces the influence of the service provider caused by the network interruption with the base station.
Based on the reasons, the invention can be widely popularized in the fields of maritime communication and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a block diagram of a communication interruption and continuous transmission part of an AIS base station according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, the present invention provides a method for resuming data transmission from a base station for offshore communication interruption, including:
s1, acquiring ship data, performing feature analysis and classification processing on the acquired ship data, and determining data priority; the method comprises the following steps:
analyzing the received ship data, extracting ship identification, and dividing the data into x priority levels L according to a transmission channel, a data type and user level information 1 ，L 2 ，…，L x . In this embodiment, the transmission channel includes AIS, ASM, VDE; the data types comprise position information, video data, audio data, safety information and alarm information; the user classes include advanced and general.
S2, adding timestamp information to the processed data, and sorting and storing the timestamp information according to the priority; the method comprises the following steps:
and storing the data in a two-dimensional form, wherein the horizontal axis is time, the vertical axis is ship identification, and the data stored under each ship identification is stored according to priority.
S3, the connection base station determines a continuous transmission user, records the connection storage duration of the user and determines continuous transmission data; the method comprises the following steps:
recording the number of connections N at the same time for the users who have established network connections with the base station IP When the network connection is interrupted, recording UTC time stamp T when the user is disconnected IPlx (ii) a Recording user reconnect timestamp as T when connection is restored IPcx (ii) a Before the historical data is not continuously transmitted, the user may have the situation that the communication is interrupted and reconnected for many times, and in this situation, a plurality of groups of T are recorded IPlx And T IPcx Each group T IPlx And T IPcx Require historical data corresponding to x priorities, i.e. L needs to be recorded for each communication interruption reconnection 1 T of (A) IPlxl1 And T IPcxl1 、L 2 T of (A) IPlxl2 And T IPcx l2、…、L x T of (A) IPlxlx And T IPcxlx Recording the communication interruption reconnection time set of the nth user as T 1Pn 。
S4, calculating the maximum sending rate of the continuous transmission data, and distributing the continuous transmission rate to each user; the method comprises the following steps:
recording the receiving rate of the base station real-time data as P SS (ii) a Marking the total bandwidth of the base station transmission data obtained by network monitoring as P Z (ii) a Calculating the maximum sending rate P of continuous transmission data EF ，P EF ＝P Z -P SS 。
Further comprising:
when the data continuously transmitted for a plurality of users exist at the same time, the data amount of the users continuously transmitted at the same time is recorded as n, and all continuously transmitted data share the maximum sending rate P EF Then calculate the maximum sending rate P of the continuous transmission data EF ，P EF ＝P IP1 +P IP2 +…+P IPn 。
And S5, continuing data transmission according to the continuous transmission rate. The method comprises the following steps:
when a recorded user m accesses the base station again, the communication interruption time T between the user m and the base station is obtained IPm And calculating available sending rate P of the user continuous transmission data IPm ；
Continuously transmitted data of each connection are transmitted from high to low according to priority, and the sending rate P which can be used by the continuously transmitted data of the user is recalculated every time T is transmitted IPm And updating the communication interruption time to the time point of not continuously transmitting the data until all the data are continuously transmitted.
The sending rate P which can be used by the user to continuously transmit the data is calculated IPm The method comprises the following steps:
the users with high priority data needing to be reissued can occupy higher transmission bandwidth, and the weight of the occupied transmission data bandwidth is set as W according to the priority 1 ，W 2 ，…，W x ；
Allocating different occupied bandwidth weights V according to different user grades 1 ，V 2 ，…；
Let the transmission weight of each user be W IPm ×V IPm And the percentage of continuous transmission bandwidth that each user can occupy is recorded as S IPm ，
From this, P can be derived IPm ＝P BF ×S IPm I.e. the available continuous transmission data rate for connection m is P IPm 。
The invention also provides a system for continuously transmitting the data of the base station for the offshore communication interruption, which comprises the following components:
the data processing unit is used for acquiring ship data, performing characteristic analysis and classification processing on the acquired ship data and determining the priority of the data;
the data storage unit is used for adding timestamp information to the processed data and storing the timestamp information according to the priority sequence;
the connection management unit is used for connecting the base station to determine the transmission continuation user, recording the connection duration of the user and determining the transmission continuation data;
the flow control unit is used for calculating the maximum sending rate of the continuous transmission data and distributing the continuous transmission rate to each user;
and the data continuous transmission unit is used for continuously transmitting the data according to the continuous transmission rate.
For the embodiments of the present invention, the description is simple because it corresponds to the above embodiments, and for the relevant similar points, reference may be made to the description in the above embodiments, and details are not described here.
As shown in fig. 2, the embodiment takes an AIS base station as an example as a specific implementation, and provides a system for continuing to transmit broken network data of the AIS base station, including:
in the operation process of the AIS base station, the data processing unit takes the MMSI number of the AIS data as a ship identifier, extracts the ship position report information according to the frequency of 1 item in 1 minute and sets the priority to be L 1 Setting the priority of binary information and security information to L 2 Setting the remaining location reports to a priority of L 3 Setting the remaining other messages to priority L 4 。
The data storage unit stores the data in a two-dimensional form, the horizontal axis is UTC minutes, the vertical axis is a ship identifier, namely MMSI number, and the historical data are stored according to the priority sequenceStorage, i.e. UTC minute t will store 4 File files tL1 ，File tL2 ，File tL3 ，File tL4 Respectively corresponding to the priority L 1 ，L 2 ，L 3 ，L 4 。
The connection management unit is responsible for managing the users who have established the connection, and supposing that the communication interruption reappearance occurs to 3 users a, b and c, wherein the communication interruption time of a is t 1 -t 3 、t 6 -t 7 、t 9 -t 10 B communication interruption time t 3 -t 4 、t 9 -t 10 C communication interruption time t 9 -t 10 At t 11 At the moment, the users a, b and c recover the network connection, and the communication interruption reconnection time set of a can be obtained and recorded as T IPa ，T IPa Comprising time pairs of t 1l1 -t 3l1 、t 6l1 -t 7l1 、t 9l1 -t 10l1 、t 1l2 -t 3l2 、t 6l2 -t 7l2 、t 9l2 -t 10l2 、t 1l3 -t 3l3 、t 6l3 -t 7l3 、t 9l3 -t 10l3 、t 1l4 -t 3l4 、t 6l4 -t 7l4 、t 9l4 -t 10l4 (ii) a B is obtained, and a set of communication interruption reconnection time is recorded as T IPb， T IPb Including time pairs of t 3l1 -t 4l1 、t 9l1- t 10l1 、t 3l2 -t 4l2 、t 9l2 -t 10l2 、t 3l3 -t 4l3 、t 9la -t 10lB 、t 3l4 -t 4l4 、t 9l4 -t 10l4 (ii) a And c is obtained, and a communication interruption reconnection time set is recorded as T IPc ，T IPc Including time pairs of t 8l1 -t 10l1 、t 8l2 -t 10l2 、t 9l3 -t 10l3 、t 9l4 -t 10l4 。
The data that the user a needs to continuously transmit is L 1 Priority File t1L1 、File t2L1 、Fie t3L1 、File t6L1、 File t7L1 、File t9L1 、File t10L1 ，L 2 Priority Fie t1L2 、File t2L2 、File t3L2 、File t6L2 、File t7L2 、File t9L2 、File t10L2 ，L 3 Priority File t1L3 、File t2L3 、File t3L3 、File t6L3 、File t7L3 、File t9L3 、File t10L3 ，L 4 Priority File t1L4 、File t2L4 、File t3L4 、File t6L4 、File t7L4 、File t9L4 、File t10L4 ；
The data that the user b needs to continuously transmit is L 1 Priority File t3L1 、File t4L1 、File t9L1 、File t10L1 ，L 2 Priority File t3L2 、File t4L2 、File t9L2 、File t10L2 ，L 3 Priority File t3L3 、File t4L3 、File t9L3 、File t10L3 ，L 4 Priority File t3L4 、File t4L4 、File t9L4 、File t10L4 ；
The data that the user c needs to continuously transmit is L 1 Priority File tgL1 、File t9L1 、File t10L1 ，L 2 Priority File t8L1 、File t9L2 、File t10L2 ，L 2 Priority File t8L3 、File t9L 3 、 File t10L3 ，L 2 Priority File t8L4 、File t9L4 、File t10L4 。
The flow control unit is responsible for calculating the maximum sending rate P of the complementary sending data BF The real-time AIS data receiving rate of the base station is marked as P ss Because most of AIS data is ship position information, the total data amount of the information is influenced by the number of surrounding ships, the data amount does not fluctuate violently, the AIS data amount of the last UTC minute can be taken as the AIS data amount to be received by the minute as a reference, and the total bandwidth of the base station network can be monitored by the network and recorded as P Z ，P BF ＝P z -P SS The most of the continuous transmission data can be obtainedLarge transmission rate P BF . Setting priority L 1 、L 2 、L 3 、L 4 The transmission weights of (1) are 4, 3, 2, 1, and the connection weights of all users are the same. The total number of the connections needing to be retransmitted currently is 3, and the highest priority data needing to be continuously transmitted by each user are all L 1 The continuous transmission rate is divided equally by 3 users, and the continuous transmission rate used by each user is
The data continuous transmission unit transmits data according to the continuous transmission rate
The retransmission rate for each connected user is recalculated for each 6 second transmission of data for each connected user. And updating the corresponding communication interruption time in the user communication interruption reconnection time set record every time when one user continuously transmits the data of one file, and if the first 6 seconds of continuous transmission are completed, each user transmits the data of 6 files and updates the communication interruption time record of each user: t is IPa Comprising time pairs of t 10l1 -t 10l1 、t 1l2 -t 3l2 、t 6l2 -t 7l2 、t 9l2 -t 1ol2 、t 1l3 -t 3l3 、t 6l3 -t 7l3 、t 9l3 -t 10l3 、t 1l4 -t 3l4 、t 6l4 -t 7l4 、t 9l4 -t 10l4 ；T IPb Comprising time pairs of t 9l2 -t 10l2 、t 3l3 -t 4l3 、t 9l3 -t 10l3 、t 3l4 -t 4l4 、t 9l4 -t 10l4 ；T IPc Comprising time pairs of t 9p3 -t 10l3 、t 9l4 -t 10l4 。
The total number of connections currently requiring retransmission is 3, wherein the user a also has L 1 The data of priority needs to be transmitted, the weight of the rate of continuous transmission is allocated to be 4, and the user b also has L 2 The data of priority needs to be transmitted, the weight of the continuous transmission rate is distributed to be 3, and the user c also transmitsHas L 3 The data of the priority needs to be transmitted, the weight of the continuous transmission rate is allocated to be 2, and the continuous transmission rate of the user a is
User b has a continuous transmission rate of
User c has a continuous transmission rate of
And continuing to transmit for the next 6 seconds until all data is continuously transmitted.
In summary, the AIS base station is generally installed in iron towers, roofs, mountains and other places near the coast, the environment is complex, network interruption often occurs, historical data is lost, and a blank interval exists when a user queries a historical track of a ship. The invention can continuously transmit the important data during the communication interruption period under the condition of not influencing the AIS real-time data report, preferentially meets the AIS ship track description requirement, and then re-transmits other AIS data, thereby greatly reducing the influence of network disconnection on the service provided by the service provider.
The embodiment of the present application further discloses a computer-readable storage medium, in which a set of computer instructions is stored, and when the set of computer instructions is executed by a processor, the method for resuming the base station data for maritime communication interruption provided in any one of the above embodiments is implemented.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for continuously transmitting data of a base station for offshore communication interruption is characterized by comprising the following steps:
acquiring ship data, performing characteristic analysis and classification processing on the acquired ship data, and determining data priority;
adding timestamp information to the processed data, and sorting and storing the processed data according to the priority;
the connection base station determines a continuous transmission user, records the connection duration of the user and determines continuous transmission data;
calculating the maximum sending rate of the continuous transmission data, and allocating the continuous transmission rate to each user;
and continuing data transmission according to the continuous transmission rate.
2. The method for continuing to transmit the data of the base station for the marine communication interruption as claimed in claim 1, wherein the acquiring the ship data, performing feature analysis and classification processing on the acquired ship data, and determining the priority of the ship data comprises:
analyzing the received ship data, extracting ship identification, and dividing the data into x priority levels L according to a transmission channel, a data type and user level information 1 ，L 2 ，…，L x 。
3. The method for continuously transmitting the base station data for the maritime communication interruption, as claimed in claim 1, wherein the adding time stamp information to the processed data and storing the processed data in a priority order, comprises:
and storing the data in a two-dimensional form, wherein the horizontal axis is time, the vertical axis is ship identification, and the data stored under each ship identification is stored according to priority.
4. The method for resuming data of a base station used for offshore communication interruption of claim 1, wherein the connecting base station determines a user to resume, records the duration of the user connection, and comprises:
recording the number of connections N at the same time for the users who have established network connections with the base station IP When the network connection is interrupted, recording UTC time stamp T when the user is disconnected IPlx (ii) a Recording user reconnect timestamp as T when connection is restored IPcx (ii) a Before the historical data is not continuously transmitted, the user may have the situation that the communication is interrupted and reconnected for many times, and in this situation, a plurality of groups of T are recorded IPlx And T IPcx Each group T IPlx And T IPcx Require historical data corresponding to x priorities, i.e. L needs to be recorded for each communication interruption reconnection 1 T of IPlxl1 And T IPcxl1 、L 2 T of IPcxl2 And T IPcxl2 、…、L x T of IPlxlx And T IPcxlx Recording the communication interruption reconnection time set of the nth user as T IPn 。
5. The method for resuming data from a base station during an outage of marine communications of claim 1, wherein the calculating a maximum transmission rate for resuming data and allocating a resuming rate to each user comprises:
recording the receiving rate of the base station real-time data as P ss ；
Marking the total bandwidth of the base station transmission data obtained by network monitoring as P z ；
Calculating the maximum sending rate P of continuous transmission data BF ，P BF ＝P Z -P SS 。
6. The method for resuming data from a base station during an outage of marine communications of claim 5, wherein the calculating a maximum transmission rate for resuming data, assigning a resuming rate to each user, further comprises:
when the data continuously transmitted for a plurality of users exist at the same time, the number of the users continuously transmitting at the same timeThe data volume is recorded as n, and all continuous transmission data share the maximum transmission rate P BF Then calculate the maximum sending rate P of the continuous transmission data BF ，P BF ＝P IP1 +P IP2 +…+P IPn 。
7. The method for resuming data from a base station used in a maritime communication interruption, as claimed in claim 1, wherein said resuming data according to a resuming rate comprises:
when a recorded user m accesses the base station again, the communication interruption time T between the user m and the base station is obtained IPm And calculating available sending rate P for the user to continue transmitting data IPm ；
Continuously transmitted data of each connection is transmitted from high to low according to priority, and the available sending rate P of the continuously transmitted data of the user is recalculated every time T of transmission IPm And updating the communication interruption time to the time point of not continuously transmitting the data until all the data are continuously transmitted.
8. The method for resuming data from a base station during a maritime communication outage as claimed in claim 1, wherein the sending rate P used for calculating the user's data resuming is calculated IPm The method comprises the following steps:
the user with high priority data to be reissued can occupy higher transmission bandwidth, and the weight of the occupied transmission data bandwidth is set as W according to the priority 1 ，W 2 ，…，W x ；
Allocating different occupied bandwidth weights V according to different user grades 1 ，V 2 ，…；
Let the transmission weight of each user be W IPm ×V IPm And the percentage of continuous transmission bandwidth that each user can occupy is marked as S IPm ，
From this, P can be derived IPm ＝P EF ×S IPm I.e. the available retransmission data rate for connection m is P IPm 。
9. A base station data retransmission system for maritime communication interruption, comprising:
the data processing unit is used for acquiring ship data, performing characteristic analysis and classification processing on the acquired ship data and determining the priority of the data;
the data storage unit is used for adding timestamp information to the processed data and storing the data according to the priority sequence;
the connection management unit is used for connecting the base station to determine the transmission continuation user, recording the connection duration of the user and determining the transmission continuation data;
the flow control unit is used for calculating the maximum sending rate of the continuous transmission data and distributing the continuous transmission rate to each user;
and the data continuous transmission unit is used for continuously transmitting the data according to the continuous transmission rate.
10. A computer-readable storage medium having a set of computer instructions stored therein; the set of computer instructions, when executed by a processor, implements the method for resuming base station data for marine communication disruptions of any of claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211338718.2A CN115696614A (en) | 2022-10-28 | 2022-10-28 | Base station data continuous transmission method, system and storage medium for offshore communication interruption |
Applications Claiming Priority (1)
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| CN202211338718.2A CN115696614A (en) | 2022-10-28 | 2022-10-28 | Base station data continuous transmission method, system and storage medium for offshore communication interruption |
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