CN113672569B - Method and device for automatically recording electronic navigation log - Google Patents
Method and device for automatically recording electronic navigation log Download PDFInfo
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Abstract
The invention relates to a method for automatically recording an electronic navigation log, which utilizes a system for automatically recording the electronic navigation log to acquire data required by the navigation log, analyzes the data, generates the electronic navigation log and stores the electronic navigation log. The invention also relates to a device for automatically recording the electronic navigation log by applying the method, which comprises a navigation data storage medium for storing data such as ship navigation data, a navigation log storage medium for storing navigation log data, a data analysis processing module for generating the navigation log according to the data required by the navigation log and a man-machine interaction module for man-machine communication. The invention can automatically read and record the data required by the navigation log when the ship operates, automatically generate and store the navigation log, has high automation degree, and can effectively avoid the situation that the data is tampered, deleted, missed or written and input inaccurately.
Description
Technical Field
The invention relates to an electronic navigation log recording technology, in particular to a method and a device for automatically recording an electronic navigation log.
Background
The navigation log is an original record and an important legal file reflecting the operation process of the ship. International Maritime Organization (IMO) International mission safety Act (SOLAS) V/28 specifies that "maritime activities should be recorded in a maritime log book maintained on board. If there is no marine log book, the save should be recorded in another way approved by the governing body. The recording method should be permanent and may be handwriting, electronic or mechanical. ". The data recording methods including the electronic recording method are specified in the resolution of "navigation-related event recording guidelines" by a.916 (22) of IMO passage 2002. The national standard of paper navigation log is given by the national standard GB 18093-2000, which is required to be executed by all international navigation Chinese-nationality sea vessels and coastal navigation Chinese-nationality vessels above 500 BRT, and coastal navigation Chinese-nationality vessels below 500 BRT are referred to and executed, and the national maritime office 2001 issued file "sea vessel word [ 2001 ] 572" required vessel "is unified with the" navigation log "determined by the national standard (GB 18093-2000). Inland vessels also require journaling, which is relatively less than marine vessels.
The navigation log information comprises navigation records, meteorological sea condition records, cabin water measurement records, noon measurement and calculation, notes, important item records, signature columns and the like, and exercise information is required to be recorded. The information recorded in the navigation log has important purposes: (1) The method is used for summarizing the sailing and operating performances of the ship and making sailing, operating and oil-saving schemes. (2) for marine investigation when the ship is marine. However, since the paper navigation log is manually filled by the crew, there is a risk that the data is tampered with, deleted, missed or inaccurate, and it takes a certain amount of work and work time of the crew. Although software products for recording electronic navigation logs are put into use in recent years, the crew still needs to manually enter information, the workload is not reduced, and only the recorded media are different.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method and a device for automatically recording electronic navigation logs.
The technical scheme for achieving the aim of the invention is as follows: the method for automatically recording the electronic navigation log comprises the steps of acquiring data required by the navigation log (or called navigation log, including the navigation log of a sea ship, the navigation log of a inland river ship and the like) by utilizing a system for automatically recording the electronic navigation log, analyzing the data, generating electronic navigation log data and storing the electronic navigation log data.
According to actual needs, the mode of acquiring the data also comprises or does not comprise manual input through a human-computer interaction device.
Wherein, the manual logging is to manually log auxiliary log data which is needed by generating navigation logs but cannot be automatically generated from the data.
Preferably, the electronic navigation log includes a navigation log of a specified time, an external navigation log of a specified time, a ship state note log and an auxiliary log, wherein the specified time navigation log is generated according to navigation data acquired at a specified time of technical regulations; the specified time external navigation log is generated according to navigation data acquired at the time when the specified situation condition meeting the technical rule of the navigation log to be added appears in the navigation data; the ship state note log is a navigation log generated according to ship state change (such as driving state change, berthing state change, operation state change and the like) data; the auxiliary log is auxiliary log data (such as ship data, important matter records, voyage information, exercise state records and the like) manually recorded.
Wherein, the specified time (or called fixed time) usually adopts but is not limited to the recording time of navigation record, meteorological sea condition record, cabin water measurement record and noon measurement and calculation specified in the national standard GB18093-2000 navigation Log; the specified scenario of increasing the navigation log generally comprises, but is not limited to, the scenario that the number of times of recording the navigation log should be increased specified in the national standard GB18093-2000 navigation log.
Preferably, the generation mode of the navigation log at the preset time is that navigation data of a corresponding time period is extracted from the navigation data at the preset time, and the extracted navigation data is analyzed to generate the navigation log.
Preferably, the generation mode of the external navigation log in the specified time is to traverse navigation data acquired from the generation time of the electronic navigation log to the current time, record the time when specified scene conditions which need to be added in the traversed navigation data appear, extract the navigation data in the corresponding time period according to the recorded time, analyze the extracted navigation data and generate the navigation log.
And when the specified scene conditions which meet the requirement of increasing the navigation log do not appear in the traversed navigation data, the specified time outside navigation log is not generated. And if the traversed navigation data are in the presence of the specified scene conditions which meet the requirement of increasing the navigation log for a plurality of times, sequentially recording the time of occurrence of the specified scene conditions, and then sequentially extracting the navigation data analysis of the time according to the recorded time to generate the specified time foreign navigation log.
Preferably, the generation mode of the ship state note log is to extract the ship state data of the corresponding time period from the navigation data, the operation or the operation backup data according to the backup data of the ship equipment control command and the change time of the ship state (usually, the execution time of the ship state change control command can be obtained from the backup of the ship control device), and generate the navigation log with or without combining the manually-entered ship state note content.
The specified time navigation log, the specified time outside navigation log, the ship state note log and the auxiliary log jointly form the electronic navigation log. After the electronic navigation log is generated, preferably, the authorized user audits and signs, if manual input errors are found in the auditing process, the electronic navigation log is corrected, otherwise, the signature is confirmed, after the authorized user confirms the signature, a hash value is generated on the audited and confirmed electronic navigation log data through a hash function, a private key is read to encrypt the hash value to generate a signature block, and the signature block and the modified data (if any) are stored in an electronic navigation log storage medium.
The time at which the authorized user reviews the signature is typically the next day of electronic marine log generation (24:00 after the electronic marine log generation day), and the electronic marine log data that is reviewed and confirmed is the electronic marine log data of the previous whole day (0-24:00).
An apparatus for automatically recording an electronic navigation log, comprising:
a voyage data storage medium for storing ship voyage data, operation or job backup data, including data related to voyage logs;
The navigation log storage medium is used for storing the generated navigation log data;
The data analysis processing module is used for extracting data related to the navigation log from the navigation data storage medium, analyzing and generating the navigation log according to the extracted and/or received data, and sending the generated navigation log to the navigation log storage medium for storage; and, a step of, in the first embodiment,
And the man-machine interaction module is used for manually inputting data into the data analysis processing module, checking the navigation log and auditing the navigation log, and is provided with a man-machine interaction interface.
The beneficial effects of the invention are as follows:
1) The invention can automatically collect and record most of data needed by the navigation log through the sensor when the ship operates (the tiny part of auxiliary log data information which cannot be automatically collected can be recorded by artificial electronics), and automatically generate and store the electronic navigation log according to the data, thereby effectively avoiding the situation that the navigation log data is tampered, deleted, missed or written and recorded inaccurately;
2) The navigation log generated by the invention adopts an electronic data form, can effectively prevent the situation that the navigation log is tampered after being audited, signed and encrypted, effectively ensures the accuracy of the navigation log, and meets the requirements of international and domestic technical regulations.
Drawings
FIG. 1 is a schematic diagram of an automated recording electronic marine log system embodying the present invention;
FIG. 2 is a schematic diagram of an automatic recording electronic marine log device of the present invention;
FIG. 3 is a general flow chart of a method for automatically recording electronic voyage logs using the present invention;
FIG. 4 is a flow chart of the present invention for automatically generating electronic voyage log data;
FIG. 5 is a schematic view of the change in state of the vessel according to the present invention;
FIG. 6 is a flow chart of manually entering marine log data in accordance with the present invention.
Detailed Description
Referring to fig. 1 and 2, the invention discloses a device for automatically recording an electronic navigation log, which comprises a navigation data storage medium, a navigation log storage medium, a data analysis processing module and a man-machine interaction module, wherein the navigation data storage medium is used for storing ship navigation data, operation or operation backup data, and comprises data related to the navigation log; the navigation log storage medium is used for storing the generated navigation log data; the data analysis processing module is used for extracting data related to the navigation log from the navigation data storage medium and receiving manual entry data, analyzing and generating the navigation log according to the extracted and received data, and storing the generated navigation log into the navigation log storage medium; the man-machine interaction module is provided with a man-machine interaction interface for manually inputting data (comprising auxiliary data required by generating the navigation log, main data of the ship, dynamic information of a shipman, parameter setting and the like), checking the navigation log and auditing (signing and encrypting) the navigation log to the data analysis processing module. The navigation data storage medium, the navigation log storage medium and the manual interaction module are preferably connected with the data analysis processing module in a two-way communication mode, the connection mode adopts a wired connection mode, and the manual interaction module and the data analysis processing module can also adopt a wireless connection mode.
The system (which may be called an automatic electronic navigation log recording system) applying the present invention may include a machine vision recognition hydrological outdoor unit 102, a ship internet of things hub 103 and a navigation brain server 101, where the machine vision recognition hydrological outdoor unit 102 and the ship internet of things hub 103 are both communicatively connected with the navigation brain server 101, and a wired connection manner of a data line 104 is adopted, or a wireless connection manner may also be adopted, for example, a connection manner by WIFI, bluetooth or an infrared manner, where the machine vision recognition hydrological outdoor unit is used to obtain hydrological raw image data required for generating a navigation log, and transmit the obtained hydrological image data to the navigation brain server, and the ship internet of things hub is used to obtain control instructions and ship state data related to manipulation or operation of a ship navigation device and a manipulation or operation control device required for generating a navigation log, and transmit the obtained data to the navigation brain server, and the navigation brain server is used to generate and store the received navigation log data in combination or non-combination with manual navigation data analysis, and the navigation brain server is provided with a navigation interaction device 1015, a navigation log interaction device 1014, and a navigation human-computer interaction device 1014, and a navigation interaction device 1012.
The navigation data storage medium 1011 is a carrier for storing the navigation data such as the acquired navigation data raw data and the identified hydrographic data acquired by the hydrographic acquisition unit, and the backup data according to the operation or the operation of the ship state change.
The navigation log storage medium 1012 is a carrier that stores electronic navigation log data that is processed, generated, or entered as specified by the regulations.
The data storage medium may be a hard disk, a memory chip, or other apparatus or device suitable for storing electronic data.
The navigation log processing device (or data analysis processing module) 1013 is responsible for performing tasks such as extracting or calculating navigation log data from the navigation data storage medium 1011 according to a predetermined time or scene, generating navigation log records, storing the navigation log records in the navigation log storage medium 1012, reading the navigation log from the navigation log storage medium 1012, displaying the navigation log, and managing the system.
The navigation log man-machine interaction device (or man-machine interaction module) 1014 is mainly used for displaying navigation log information on the man-machine interaction interface 1015. The man-machine interaction interface 1015 is mainly used for inputting navigation log information to be manually input, checking navigation logs, auditing the navigation logs, inputting system parameters and the like.
The system preferably further comprises a hydrological acquisition unit 102 for acquiring the original data of the environmental hydrological environment in which the ship is located, and transmitting the acquired data to the sailing brain server 101 through a data line 104. The main component of the hydrological weather acquisition unit is a sensor for acquiring the hydrological weather information.
The system preferably further comprises a mobile terminal 105, wherein the mobile terminal 105 is in communication connection with the navigation brain server 101 (typically in communication connection with the navigation log processing device 1013) for a crew to input navigation log information requiring manual entry or to perform auditing work.
The mobile terminal 105 may be a mobile phone, a notebook computer, a tablet computer or an industrial handheld mobile device, and the mobile terminal 105 and the sailing brain server 101 are generally connected by wireless communication, for example, WIFI, bluetooth, infrared, etc., or may be connected by wired information lines.
The system also preferably includes an internet of things HUB (HUB) 103 communicatively connected to the sailing brain server 101 via a data line 104 (wireless communication may also be used), where the internet of things HUB (HUB) 103 is typically a device that facilitates data sharing or transfer of internet of things, and is used to communicate data (e.g., ship sailing, berthing and ship operation data, control instructions, etc.) to the sailing brain server 101 in connection with other devices or sensors outside the system. Except for a small amount of data acquisition devices (sensors or devices) for acquiring non-specified (legal) data information, all the data acquisition devices (sensors or navigation devices) for acquiring the specified (legal) data information continuously acquire data and transmit the data to the navigation brain server 101 in real time, and the data are stored in the navigation data storage medium 1011, so that the requirement that the recording of relevant regulation of navigation data should be continuously performed is met, and a foundation is laid for extracting navigation log data.
The invention also discloses a method for automatically recording the electronic navigation log, the general flow chart is shown in figure 3, and the steps mainly comprise automatically generating navigation log data, manually recording the navigation log data, auditing the navigation log data, checking the navigation log data and managing the system. Wherein the auditing of the marine log data operations is typically performed after 24 points of the day of the automatic generation of the marine log and the manual logging of the marine log data operations. If the maritime log audit must be completed within the time set by the system, any manual operations need to be performed after the maritime log data audit operation prior to the day is completed.
In each step, the data required by each step are read according to the task to be completed.
Referring to fig. 4, the process of automatically generating the navigation log data is preferably:
(1) Automatic recording of marine logs according to legal (or legal) recording times
(1.1) At the expiration of the legal recording time, extracting navigation data of the time (corresponding period, the same applies hereinafter) from the navigation data related to the navigation log stored in the navigation data storage medium 1011 according to the legal recording time and calculating the navigation log data. The navigation data are navigation-related data which are continuously recorded in an axial direction by taking time as an axis, wherein cloud data read cloud with the largest total cloud amount. The legal record time is the record time of sailing record, meteorological sea condition record, cabin water measurement record and noon measurement and calculation specified in GB 18093-2000 navigation Log;
(1.2) automatically generating an electronic navigation log record from the extracted or calculated navigation log data and saving the electronic navigation log record in the navigation log storage medium 1012.
(2) Automatic increase of navigation log outside legal time
(2.1) Automatically traversing navigation data from the navigation data storage medium 1011 to the current time from the last recorded time of the electronic navigation log (the time of the last generation of the electronic navigation log);
(2.2) when legal situation conditions meeting the requirement of increasing navigation logs appear in the read navigation data, sequentially recording the time;
(2.3) extracting navigation data of the time according to the recorded time in turn and calculating navigation log data. The legal scenario for increasing the navigation log is a scenario which is specified in GB 18093-2000 navigation log and is used for increasing the recording times of the navigation log;
(2.4) generating and saving a voyage log record to the voyage log storage medium 1012.
(3) Automatic generation of notepad data
For a ship equipped with an automatic steering, automatic berthing and automatic operation device, the memo column data can be automatically generated.
(3.1) The ship control device backs up the control command and the execution time to the navigation log processing means 1013 in the navigation brain server 101 through the internet of things hub 103, and at the same time, backs up the operation or job data related to the control command outside the autopilot to the navigation data storage medium 1011;
(3.2) the navigation log processing unit 1013 reads the required driving, operation or job data from the navigation data storage medium 1011 according to the control instruction execution time after receiving the control instruction backup;
(3.3) the navigation log processing unit 1013 starts the ship state automaton constructed according to the ship state model (shown in fig. 5) Wherein/>Is a ship state set,/>For the input (control instruction and execution time) set,/>For output (notepad content) set,/>Is a state transition function,/>For output function,/>In the initial state of the ship, the ship state automaton can adopt any suitable virtual data processing module or entity device or equipment constructed based on a mathematical model in the prior art;
(3.4) the ship state automaton outputs memo bar data according to the inputted and read driving, operating or working data and stores the memo bar data in the navigation log storage medium 1012.
The voyage operation, the anchor operation outside the harbor, the anchor operation inside the harbor and the berth/pontoon operation in fig. 5 include all the operation contents specified in GB 18093-2000 "record column record contents" of the voyage journal.
Referring to fig. 6, the procedure of manually entering the navigation log data is preferably:
(1) The authorized user opens the navigation log manual entry interface (manual entry interface includes note bar, major event record bar, voyage information, exercise record list, etc.) by one of the following modes
(1.1) Opening a navigation log manual entry interface through the human-machine interaction device 1014;
(1.2) connecting the navigation brain server 101 through the mobile terminal 105, opening a navigation log App (local area network ip address of the built-in navigation brain server 101) pre-stored in the mobile terminal 105, and calling out a navigation log manual entry interface;
(1.3) connecting the navigation brain server 101 through the mobile terminal 105, scanning the two-dimensional code (including the local area network ip address of the navigation brain server 101), and opening the manual entry page of the navigation log.
(2) Authorized user manually inputs content needing manual filling
If a notepad page is open, then:
(2.1) the navigation log processing unit 1013 reads the current state of the ship, and the characters of the notepad ship state operation buttons are updated according to the change of the ship state model (shown in fig. 5) along with the ship state transition;
(2.2) authorizing the user to operate the ship status button, the navigation log processing device 1013 reading the required data from the corresponding sensor, semi-automatically generating the notepad data;
If the audit marine log page is open, then:
(2.3) the authorized user signs in the signature column of the note column or the major event record column and clicks a 'confirm' button, a hash function is called to generate a hash value for the input data, a private key is read to encrypt the hash value to generate a signature block, and the signature block and the input data are stored in the navigation log storage medium 1012.
The process of auditing the navigation log data is preferably as follows:
(1) After each day (24:00 later), the navigation log processing device 1013 prompts the audit of the navigation log, which may be prompted by the human machine interaction device 1014, the mobile terminal 105, or other alert/prompting device;
(2) If the authorized auditing user finds that the manually entered data information is wrong, modifying, otherwise signing by a digital signature pen in a signature column and clicking a 'determination' button, invoking a hash function by the navigation log processing device 1013 to generate a hash value for the navigation log data of the previous day, reading a private key to encrypt the hash value to generate a signature block, and storing the signature block and the modified data (if any) in the navigation log storage medium 1012 (the signature block and 2.3 in the flow of the manually entered navigation log data are the same flow);
(3) And if the time exceeds the final time of the navigation log audit set by the system, prohibiting manual entry of the navigation log data until the navigation log completes the audit.
Claims (6)
1. The method for automatically recording the electronic navigation log is characterized in that the system for automatically recording the electronic navigation log is utilized to acquire data required by the navigation log, the data is analyzed to generate the electronic navigation log and is stored, the system for automatically recording the electronic navigation log comprises a machine vision recognition hydrological weather outdoor unit which is used for acquiring hydrological meteorological original image data required by the navigation log, the electronic navigation log comprises a specified time navigation log, a specified time outside navigation log, a ship state note log and an auxiliary log, the specified time navigation log, the specified time outside navigation log, the ship state note log and the auxiliary log jointly form the electronic navigation log, after the electronic navigation log is generated, an authorized user is used for checking and signing, if manual input errors are found in the checking process, and correcting is carried out, otherwise, signature is confirmed, after the authorized user confirms, the electronic navigation log data is generated through a hash function, a private key is read to encrypt the hash value to generate a signature block, if the modified electronic navigation log is stored in an electronic navigation log storage medium, and the signature block is stored in the specified navigation log storage medium according to the specified navigation log; the specified time outside navigation log is generated according to navigation data acquired at the time of occurrence of the specified situation when the specified situation condition meeting the technical regulation of the navigation log to be added appears in the navigation data, the specified time outside navigation log is generated by traversing the navigation data acquired from the generation time of the electronic navigation log to the current time, recording the time of occurrence of the specified situation condition meeting the navigation log to be added in the traversed navigation data, extracting the navigation data of the corresponding time period according to the recorded time, analyzing the extracted navigation data to generate the navigation log,
The automatic generation process of the navigation log data comprises the following steps:
(1) Automatic recording of marine logs based on legal recording time
(1.1) Extracting navigation data of the time from navigation data related to navigation logs stored in a navigation data storage medium according to legal recording time when the legal recording time is up, and calculating navigation log data, wherein the navigation data is navigation related data continuously recorded in an axial direction by using time, and the legal recording time is recording time of navigation records, meteorological sea condition records, cabin water measurement records and noon measurement and calculation specified in GB 18093-2000 navigation log;
(1.2) automatically generating electronic navigation log records from the extracted or calculated navigation log data and storing the electronic navigation log records in a navigation log storage medium;
(2) Automatic increase of navigation log outside legal time
(2.1) Automatically traversing voyage data from the voyage data storage medium from the last recorded time of the electronic voyage log to the current time;
(2.2) when legal situation conditions meeting the requirement of increasing navigation logs appear in the read navigation data, sequentially recording the time;
(2.3) sequentially extracting navigation data of the time according to the recorded time and calculating navigation log data, wherein legal scenes for increasing the navigation log refer to scenes which are specified in GB 18093-2000 navigation log and are required to increase the recording times of the navigation log;
(2.4) generating a navigation log record and saving it to the navigation log storage medium;
(3) Automatic generation of notepad data
The ship control equipment backups the control instruction and the execution time to a navigation log processing device in a navigation brain server through an Internet of things hub, and simultaneously backups operation or operation data related to the control instruction outside the autopilot to a navigation data storage medium;
(3.2) the navigation log processing device reads the required driving, operating or working data from the navigation data storage medium according to the execution time of the control command after receiving the control command backup;
(3.3) the navigation log processing device starts a ship state automaton constructed according to the ship state model;
and (3.4) outputting the memo column data by the ship state automaton according to the inputted and read driving, operating or working data and storing the memo column data in the navigation log storage medium.
2. The method of automatically recording an electronic voyage log of claim 1, wherein said ship state log is a voyage log generated from ship state change data.
3. The method for automatically recording electronic navigation logs according to claim 1, wherein the navigation logs are generated in a manner that navigation data of a corresponding time period is extracted from the navigation data at a specified time, and the extracted navigation data is analyzed to generate the navigation logs.
4. A method of automatically recording an electronic marine log according to claim 1 wherein the auxiliary log is manually entered auxiliary log data.
5. The method for automatically recording electronic voyage logs according to any of the claims 1 to 4, characterized in that the generation mode of the voyage log is to extract the voyage state data of corresponding time period from the voyage data, operation or operation backup data according to the control instruction backup data of the ship equipment and the change time of the ship state, and to generate the voyage log with or without the manually recorded voyage state record content.
6. An apparatus for automatically recording an electronic navigation log, comprising:
the navigation data storage medium is used for storing the acquired navigation data original data, the acquired hydrological meteorological data identified after being acquired by the hydrological acquisition unit and the backup data for the state change of the ship due to operation or operation, and comprises data related to navigation logs;
The navigation log storage medium is used for storing the generated navigation log data;
The data analysis processing module is used for extracting data related to the navigation log from the navigation data storage medium, analyzing and generating the navigation log according to the extracted and/or received data, and sending the generated navigation log to the navigation log storage medium for storage;
And, a step of, in the first embodiment,
The man-machine interaction module is used for manually inputting data into the data analysis processing module, checking navigation logs and auditing the navigation logs, is provided with a man-machine interaction interface,
The electronic navigation log comprises a specified time navigation log, a specified time outside navigation log, a ship state note log and an auxiliary log, wherein the specified time navigation log, the specified time outside navigation log, the ship state note log and the auxiliary log jointly form the electronic navigation log; the specified time outside navigation log is generated according to navigation data acquired at the time of occurrence of the specified situation when the specified situation condition meeting the technical regulation of the navigation log to be added appears in the navigation data, the specified time outside navigation log is generated by traversing the navigation data acquired from the generation time of the electronic navigation log to the current time, recording the time of occurrence of the specified situation condition meeting the navigation log to be added in the traversed navigation data, extracting the navigation data of the corresponding time period according to the recorded time, analyzing the extracted navigation data to generate the navigation log,
The automatic generation process of the navigation log data comprises the following steps:
(1) Automatic recording of marine logs based on legal recording time
(1.1) Extracting navigation data of the time from navigation data related to navigation logs stored in a navigation data storage medium according to legal recording time when the legal recording time is up, and calculating navigation log data, wherein the navigation data is navigation related data continuously recorded in an axial direction by using time, and the legal recording time is recording time of navigation records, meteorological sea condition records, cabin water measurement records and noon measurement and calculation specified in GB 18093-2000 navigation log;
(1.2) automatically generating electronic navigation log records from the extracted or calculated navigation log data and storing the electronic navigation log records in a navigation log storage medium;
(2) Automatic increase of navigation log outside legal time
(2.1) Automatically traversing voyage data from the voyage data storage medium from the last recorded time of the electronic voyage log to the current time;
(2.2) when legal situation conditions meeting the requirement of increasing navigation logs appear in the read navigation data, sequentially recording the time;
(2.3) sequentially extracting navigation data of the time according to the recorded time and calculating navigation log data, wherein legal scenes for increasing the navigation log refer to scenes which are specified in GB 18093-2000 navigation log and are required to increase the recording times of the navigation log;
(2.4) generating a navigation log record and saving it to the navigation log storage medium;
(3) Automatic generation of notepad data
The ship control equipment backups the control instruction and the execution time to a navigation log processing device in a navigation brain server through an Internet of things hub, and simultaneously backups operation or operation data related to the control instruction outside the autopilot to a navigation data storage medium;
(3.2) the navigation log processing device reads the required driving, operating or working data from the navigation data storage medium according to the execution time of the control command after receiving the control command backup;
(3.3) the navigation log processing device starts a ship state automaton constructed according to the ship state model;
and (3.4) outputting the memo column data by the ship state automaton according to the inputted and read driving, operating or working data and storing the memo column data in the navigation log storage medium.
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