CN111402635B - Navigation speed supervision method, device, equipment and storage medium - Google Patents
Navigation speed supervision method, device, equipment and storage medium Download PDFInfo
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- CN111402635B CN111402635B CN202010152620.2A CN202010152620A CN111402635B CN 111402635 B CN111402635 B CN 111402635B CN 202010152620 A CN202010152620 A CN 202010152620A CN 111402635 B CN111402635 B CN 111402635B
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- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G3/00—Traffic control systems for marine craft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
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Abstract
The application discloses a navigation speed supervision method, a navigation speed supervision device, equipment and a storage medium, wherein the method comprises the following steps: receiving navigation information of a target ship, wherein the navigation information comprises navigation speed; calculating the percentage of the sailing speed of the target ship deviating from the standard speed; if the percentage is larger than a preset value, determining that the navigation speed of the target ship is abnormal; and displaying alarm information to prompt management personnel to take measures. The navigation speed supervision device receives navigation information sent by a target ship, acquires the navigation speed in the navigation information, calculates whether the navigation speed deviates from a standard speed and is too large, judges that the navigation speed of the target ship is abnormal if the navigation speed deviates from the standard speed, and finally displays warning information to prompt a manager to take a corresponding measure.
Description
Technical Field
The present application relates to the field of ship management, and in particular, to a method, an apparatus, a device, and a storage medium for monitoring a navigation speed.
Background
Because of the complexity and difficulty of marine traffic, ships encounter many problems and situations while traveling at sea, making ship management more difficult than vehicle management on land. Nevertheless, vessel management is essential, especially vessel speed monitoring, which if left unchecked results in more chaotic and unmanageable marine traffic.
At present, the speed monitoring of ships is mainly carried out manually by marine law enforcement personnel, the marine law enforcement personnel check the speed of the ships from time to time and judge whether the speed of the ships is abnormal, and the method is troublesome and labor-consuming and has large errors, so that the efficiency and the correctness are very low.
Therefore, the speed monitoring of the marine vessel is difficult and can be completed by manual operation, so that the current efficiency of vessel speed monitoring is too low, and a relatively high-efficiency vessel speed monitoring method is lacked.
Disclosure of Invention
The embodiment of the application provides a method for supervising the navigation speed, which can monitor the navigation speed of a ship.
In a first aspect, an embodiment of the present application provides a method for supervising a navigation speed, where the method includes:
receiving navigation information of a target ship, wherein the navigation information comprises navigation speed;
calculating the percentage of the sailing speed of the target ship deviating from the standard speed;
if the percentage is larger than a preset value, determining that the navigation speed of the target ship is abnormal;
and displaying alarm information to prompt management personnel to take measures.
In a second aspect, an embodiment of the present application provides a cruise speed supervision apparatus, which includes a unit for executing the cruise speed supervision method of the first aspect, and includes:
the receiving unit is used for receiving navigation information of a target ship, and the navigation information comprises navigation speed;
a calculating unit for calculating the percentage of the sailing speed of the target ship deviating from a standard speed;
the determining unit is used for determining that the navigation speed of the target ship is abnormal if the percentage is larger than a preset value;
and the display unit is used for displaying the alarm information so as to prompt a manager to take a countermeasure.
In a third aspect, an embodiment of the present application provides another cruise speed supervision device, which includes a processor, a communication interface, and a memory, where the processor, the communication interface, and the memory are connected to each other, where the communication interface is used to communicate with other devices, and the memory is used to store a computer program that supports a cruise speed supervision apparatus to execute the cruise speed supervision method described above, where the computer program includes program instructions, and the processor is configured to call the program instructions to execute the cruise speed supervision method described above in the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium, in which a computer program is stored, the computer program including program instructions, which when executed by a processor, is configured to perform the method for monitoring a voyage speed according to the first aspect.
In the application, the ship speed monitoring equipment at the local end receives the navigation information of the target ship, then obtains the navigation speed in the navigation information, calculates the percentage of the deviation of the navigation speed from the standard speed, compares the percentage with the preset value to judge whether the navigation speed of the target ship deviates from the standard speed too much, and if the percentage is greater than the preset value, displays alarm information to prompt a manager to take a countermeasure. Generally speaking, under the condition of not depending on manual operation, the method automatically finishes the steps from collecting the navigation information of the target ship to analyzing the navigation speed in the navigation information to judge whether the speed of the target ship is abnormal or not, so that the method for monitoring the ship speed is efficient, and when the speed of the target ship is judged to be abnormal or not, the method for monitoring the ship speed judges whether the speed of the target ship is abnormal or not by judging whether the navigation speed of the target ship deviates from the standard speed and is overlarge, and the method is simple, efficient and different from a common method for judging the abnormal speed of the ship. The ship speed abnormality judgment method has the advantages that a manager only needs to set the standard speed when the local device is initialized, the standard speed represents the optimal sailing speed of the target ship, and the manager does not need to set the abnormal speed of the ship.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic flow chart of a method for monitoring a navigation speed provided by an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram of a method for monitoring a navigation speed according to another embodiment of the present application;
FIG. 3 is a schematic block diagram of a navigation speed monitoring device provided by an embodiment of the present application;
fig. 4 is a structural block diagram of a navigation speed supervision device provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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.
The application is mainly applied to a navigation speed supervision device, and the navigation speed supervision device can be a traditional navigation speed supervision device, a large storage system, a desktop computer, a notebook computer, a tablet computer, a palm computer, a smart phone, a portable digital player, a smart watch, a smart bracelet and the like, and is not limited by the application.
The terminal devices described in the embodiments of the present application include, but are not limited to, a device with a communication function, a smart phone, a tablet computer, a notebook computer, a desktop computer, a portable digital player, a smart band, a smart watch, and the like. When data are interacted between the terminal equipment and the navigation speed monitoring device, the terminal equipment or the navigation speed monitoring device records and transmits the characteristics of the data according to a preset format, wherein the characteristics of the data comprise time, place, type and the like.
Referring to fig. 1, which is a schematic flowchart of a method for monitoring a navigation speed according to an embodiment of the present application, the method for monitoring a navigation speed as shown in fig. 1 may include:
101: navigation information of the target ship is received, and the navigation information comprises navigation speed.
In the embodiment of the application, the navigation speed supervision device receives navigation information of a target ship, and the navigation information describes the navigation condition of the target ship at sea. The navigation information comprises navigation speed and speed measurement time points, wherein the navigation speed describes the speed of the target ship at the speed measurement time points, and the navigation speed contained in the navigation information corresponds to the speed measurement time points one to one. The vessel speed monitoring device may receive the vessel information sent by the target vessel at irregular time by searching the signal of the target vessel in real time. The navigation speed supervision equipment judges the sequence of the navigation information according to the received time points or the speed measuring time points in the navigation information, and it is noted that the difference value between the received time points and the speed measuring time points is very small and can be ignored, and the speed measuring time points are directly used as the received time points.
Further, the target ship transmits its own navigation information through an Automatic Identification System (AIS), and the navigation information of the target ship is message information generated by the automatic identification system.
It should be noted that the message information refers to information obtained by encapsulating the navigation information according to a preset format, and the AIS system is a short name for an automatic identification system of a ship and is composed of a shore-based (base station) facility and a shipborne device. The AIS system can be matched with a global positioning system to broadcast the ship position, ship speed, changed course rate and course and other ship dynamic state information in combination with ship name, call sign, draft, dangerous goods and other ship static state information from a very high frequency to ships and shore stations in nearby water areas, so that the nearby ships and shore stations can timely master the dynamic and static state information of all ships on nearby sea surfaces, and the ships and shore stations can communicate and coordinate with each other immediately to take necessary avoidance actions, thereby greatly helping the safety of the ships.
In another practical manner, a Universal Automatic Identification System (UAIS) evolved from the AIS system is used.
In another implementation manner, before the navigation information of the target ship is received, a network geographic information system including at least one ship icon is displayed, then a ship selection instruction is received through the network geographic information system, the target ship is determined according to the ship selection instruction, and finally an information feedback instruction is sent to the target ship to instruct the target ship to send the navigation information of the target ship.
In this embodiment, a user may specify a target ship, specifically, the navigation speed monitoring device at the local end displays a network geographic information system including at least one ship icon, and receives a ship selection instruction through the network geographic information system, where the ship selection instruction is input by the user through an input device (such as a keyboard, a mouse, or a touch display) of the local end device, and then the local end device regards a ship specified by the ship selection instruction as the target ship.
It should be noted that the network geographic information system includes a chart and icons of all ships at sea, where a display position of the ship icon on the chart corresponds to a real position of the ship on the sea, so that a manager can acquire an accurate position of a target ship by observing a position of the target ship icon on the chart. In addition, the user can know more information of the ship and further manage the ship and the like by clicking the ship in the network geographic information system, so that the navigation speed supervision device takes the ship corresponding to the icon selected by the user as a target ship and sends a state feedback instruction to the ship, so that the target ship sends the navigation information of the target ship to the navigation speed supervision device.
It should be noted that, the above-mentioned network Geographic Information System is called a network Geographic Information System (Web Geographic Information System), and refers to the internet publishing and applying the Geographic spatial data to implement the sharing and interoperation of the spatial data. The navigation speed supervision device at the home terminal comprises the network geographic information system, and the network geographic information system is displayed on a display screen to display a chart and ship icons on the chart, even a user can operate the ship icons on the chart to realize the management of ships, such as information acquisition, parameter setting and the like, so that the management, visual observation and the like of ship information can be realized, and the visual interactive management is realized.
It can be seen that a manager can designate a ship needing important attention as a target ship by clicking an icon of the ship on the network geographic information system, and after the target ship is selected, the navigation speed supervision device displays more information of the target ship on the icon corresponding to the target ship, such as identification information, ship size, nationality, ship type and the like. Therefore, the ship information is visualized by displaying the icons of all the ships on the display interface of the network geographic information system, and the user can quickly select the ship needing important attention, so that the interactivity and the efficiency are enhanced.
In another practical implementation manner, after the ship selection instruction is received and before the information feedback instruction is sent to the target ship, a function selection box is displayed on the network geographic information system, an operation instruction for a monitoring item in a pull-down menu of the function selection box is received, the monitoring item of the target ship is determined according to the operation instruction, and finally, if the monitoring item is determined to be the sailing speed monitoring, the operation of sending the information feedback instruction to the target ship is executed.
In the embodiment of the application, the local terminal device can also provide a plurality of monitoring items for the user to select. Specifically, after a user selects a target ship, a function selection box and a plurality of monitoring items in the function selection box are displayed on the network geographic information system, the local device receives operation information input by the user, determines the monitoring items selected by the user according to the operation information, takes the monitoring items as monitoring items of the target ship, and executes the operation of sending an information feedback instruction to the target ship after determining that the monitoring items of the target ship are monitoring navigation speed. The monitoring project comprises target ship berthing monitoring, continuous navigation monitoring and anchor-walking reminding besides the navigation speed monitoring, wherein the target ship berthing monitoring refers to monitoring of berthing behaviors of a target ship, the continuous navigation monitoring refers to monitoring of continuous navigation behaviors of the target ship, the anchor-walking reminding refers to monitoring of whether the ship walks an anchor or not, and the ship is reminded when the ship anchor walking is monitored.
Therefore, rich interfaces are displayed on the display interface of the network geographic information system, a user can select a monitoring item for the selected ship in a pull-down menu, and if the operation item is monitoring of the navigation speed, the operation of sending a feedback instruction to the target ship is executed. The embodiment of the application can greatly improve the efficiency, the real-time performance and the real-time performance of monitoring the navigation speed of the ship.
102: and calculating the percentage of the sailing speed of the target ship deviating from the standard speed.
In the embodiment of the present application, the cruise speed supervision apparatus first acquires a standard speed, which is an optimum speed at which the target ship is recommended to sail, and then calculates the percentage of the cruise speed deviating from the standard speed, i.e., calculates the absolute value of the percentage of the cruise speed lower or higher than the standard speed. The standard speed can be any preset value, or the standard speed is the navigation speed of the target ship at the previous speed measurement time point.
The standard speed is exemplified as the navigation speed of the target ship at the previous speed measurement time point, when the navigation information is received at the current speed measurement time point N, the navigation speed in the navigation information received at the previous speed measurement time point (N-1) is set as the standard speed, when the navigation information is received at the current speed measurement time point (N +1), the navigation speed in the navigation information received at the previous speed measurement time point N is set as the standard speed, and when the navigation information is received at a later time point, the standard speed corresponding to the current time point is determined according to the method described above. Therefore, in the method, the standard speed of each time point may be different, and the standard speed of the current speed measurement time point depends on the navigation speed of the previous speed measurement time point.
In another practical way, before calculating the percentage of the sailing speed deviating from the standard speed, the standard speed corresponding to the target ship is obtained, different ships correspond to different standard speeds, the standard speed of the ship depends on the type of the ship, the sizes and the quasi-loading weights of the different ships are different, and some high-speed ships (such as hydrofoils, hovercraft, yachts and the like) engaged in water passenger transportation or entertainment, sports and the like have standard speeds generally higher than those of low-speed ships (such as freight ships and the like) engaged in cargo transportation. In addition, the standard speed of different ships can be manually set by the manager, for example, the standard speed of the ships can be different when the actual loads of the ships are different, and then the standard speed can be manually changed by the manager.
103: and if the percentage is larger than a preset value, determining that the navigation speed of the target ship is abnormal.
In the embodiment of the application, after calculating the percentage of the sailing speed of the target ship deviating from the standard speed, the sailing speed supervision device acquires a preset value for judging whether the sailing speed of the target ship deviates from the standard speed by too much, compares the preset value with the percentage, and if the percentage is greater than the preset value, indicates that the sailing speed of the target ship is abnormal.
In another embodiment, different vessels correspond to different default values. And after calculating the percentage of the sailing speed of the target ship deviating from the standard speed, and before determining that the sailing speed of the target ship is abnormal, acquiring a preset value corresponding to the target ship. In addition, the preset value may also be set manually by a manager.
In another implementable manner, when the sailing speed of the target ship is greater than the standard speed, acquiring a first preset value, comparing the calculated percentage of the sailing speed deviating from the standard speed with the first preset value, and determining that the sailing speed of the target ship is abnormal under the condition that the percentage is greater than the first sum; and when the navigation speed of the target ship is smaller than the standard speed, acquiring a second preset value, comparing the calculated percentage of the navigation speed deviating from the standard speed with the second preset value, and determining that the navigation speed of the target ship is abnormal under the condition that the percentage is larger than the second preset value.
In the embodiment of the present application, the sailing speed of the target ship is greater than the percentage of the standard speed, and the percentage that is lower than the standard speed may correspond to different preset values, for example, the preset values include a first preset value and a second preset value, when the sailing speed of the target ship is greater than the standard speed and the percentage that deviates from the standard speed is calculated, the percentage is compared with the first preset value, and when the sailing speed of the target ship is less than the standard speed and the percentage that deviates from the standard speed is calculated, the percentage is compared with the second preset value, and the first preset value is different from the second preset value. Similarly, the first preset value and the second preset value can be manually set by a manager.
In another practical manner, after the monitoring item of the target ship is determined to be the sailing speed monitoring, before an information feedback instruction is sent to the target ship, a condition setting frame is displayed on the network geographic information system, the preset value is received through the condition setting frame, and finally the preset value is stored.
Correspondingly, if the preset values comprise a first preset value and a second preset value, the first preset value and the second preset value are set through the condition setting frame.
The embodiment of the application can allow a user to set the preset duration, and further improves the efficiency, the real-time performance and the real-time performance of ship behavior monitoring.
104: and displaying alarm information to prompt management personnel to take measures.
In the embodiment of the application, the navigation speed supervision equipment displays the alarm information under the condition of determining that the navigation speed of the target ship is abnormal, and the alarm information is used for prompting a manager to take a countermeasure. The warning information comprises navigation information of the target ship and the percentage of the navigation speed in the navigation information deviating from the standard speed.
In another practical way, the standard speed is the sailing speed of the target ship at the previous speed measurement time point.
In this embodiment of the application, the navigation information further includes a speed measurement time point, and the navigation speed included in the navigation information corresponds to the speed measurement time point one to one, so that each time the local device receives a piece of navigation information of the target ship, the standard speed is set as the navigation speed in the previous navigation information received by the local device.
For example, the local device receives the nth navigation information of the target ship, and before that, the 1 st navigation information, the 2 nd navigation information, the (N-1) th navigation information are received in sequence, so that the previous navigation information before the local device receives the nth navigation information is the (N-1) th navigation information, the navigation speed of the (N-1) th navigation information is set as the standard speed, and when the target ship receives the (N +1) th navigation information, the navigation speed of the (N-1) th navigation information is set as the standard speed.
Therefore, the method and the device can be applied to the scene of sudden acceleration or sudden deceleration of the target ship, and sudden acceleration or sudden deceleration of the target ship due to mechanical faults and the like can be effectively prevented through the method.
In another practical manner, the navigation information further includes position information, and after the navigation information of the target ship is received, before the calculation of the percentage of the navigation speed of the target ship deviating from the standard speed, the target ship is determined to be located in a heavy traffic area according to the position information in the navigation information.
Therefore, after the target ship is judged to be in the area with heavy traffic, whether the navigation speed of the target ship is abnormal or not is judged.
In another implementable manner, the methods of the two embodiments may be combined, specifically, after receiving the navigation information of the target ship, determining whether the target ship is located in a region with heavy traffic according to the position information in the navigation information, if so, taking the navigation speed of the target ship at the last speed measurement time point as a standard speed, and determining whether the current navigation speed of the target ship is abnormal by comparing the standard speed with the navigation speed in the navigation information currently received by the target ship.
Therefore, the embodiment of the application can be applied to a scene that the target ship suddenly accelerates or suddenly decelerates in a plurality of places of the ship.
In the embodiment of the application, the ship speed monitoring equipment at the local end receives the navigation information of the target ship, then obtains the navigation speed in the navigation information, calculates the percentage of the deviation of the navigation speed from the standard speed, compares the percentage with the preset value to judge whether the navigation speed of the target ship deviates from the standard speed too much, and if the percentage is greater than the preset value, displays the alarm information to prompt a manager to take a countermeasure. In summary, the embodiments of the present application automatically complete the process from collecting the navigation information of the target ship to analyzing the navigation speed in the navigation information without manual operation, so as to determine whether the speed of the target ship is abnormal, and thus, the embodiments of the present application provide an efficient ship speed monitoring method. The ship speed abnormality judgment method has the advantages that the manager only needs to set the standard speed when the local device is initialized, the standard speed represents the optimal sailing speed of the target ship, and the manager does not need to set the abnormal speed of the ship. Therefore, the embodiment of the application can effectively monitor the abnormal speed of the target ship and is very suitable for monitoring the conditions that the speed of a high-speed ship is too low and the speed of a low-speed ship is too high, because if the speed of the low-speed ship (cargo ship) is too high, the economic cost is high, and because the mass of the ship is large, accidents easily happen at high speed, and if the speed of the high-speed ship is too low, the ship cannot normally sail, for example, a hydrofoil ship, a pair of hydrofoils is arranged at the front and at the back of the bottom of the hydrofoil ship, and when the ship carries high-speed sailing, the ship body is lifted out of the water by the lift force generated by the hydrofoils, so that the resistance of water to the ship can be reduced, and the effect of waves on the ship can be reduced.
Referring to fig. 2, which is a schematic flowchart of another navigation speed supervision method provided in an embodiment of the present application, and is applied to the fields of gesture recognition and face recognition, the navigation speed supervision method shown in fig. 2 may include:
201: network geographic information system for displaying at least one ship icon
In an embodiment of the application, the cruise speed supervision device displays a network geographic information system comprising at least one ship icon. The network geographic information system comprises a chart and icons of all ships at sea, the display positions of the ship icons on the chart correspond to the real positions of the ships on the sea, and therefore managers can acquire the accurate positions of the target ships by observing the positions of the icons of the target ships on the chart. In addition, the user can know more information of the ship and further manage the ship by clicking the ship in the network geographic information system, for example, more ship information of the ship can be displayed by clicking the ship, and the ship information includes identification information, ship size, nationality, ship type and the like.
It should be noted that, the above-mentioned network Geographic Information System is called a network Geographic Information System (Web Geographic Information System), and refers to the internet publishing and applying Geographic spatial data to implement sharing and interoperation of spatial data. The navigation speed supervision device at the home terminal comprises the network geographic information system, and the network geographic information system is displayed on a display screen to display a chart and ship icons on the chart, even a user can operate the ship icons on the chart to realize the management of ships, such as information acquisition, parameter setting and the like, so that the management, visual observation and the like of ship information can be realized, and the visual interactive management is realized.
202: and receiving a ship selection instruction through a network geographic information system, and determining a target ship according to the ship selection instruction.
In the embodiment of the present application, the vessel speed supervision apparatus receives a vessel selection instruction, which is input by a user through an input device (such as a keyboard, a mouse, or a touch display) of the local device, through the network geographic information system, and then the local device regards the vessel specified by the vessel selection instruction as a target vessel.
Therefore, a manager can designate a ship needing important attention as a target ship by clicking an icon of the ship on the network geographic information system, and after the target ship is selected, the navigation speed supervision device displays more ship information of the target ship on the icon corresponding to the target ship, such as identification information, ship size, nationality, ship type and the like. Therefore, the ship information is visualized by displaying the icons of all the ships on the display interface of the network geographic information system, and the user can quickly select the ship needing important attention, so that the interactivity and the efficiency are enhanced.
203: and displaying a function selection box on the network geographic information system.
In the embodiment of the application, after the target ship is determined, the navigation speed supervision equipment displays a function selection box on the network geographic information system, wherein the function selection box comprises a plurality of monitoring items. The monitoring items comprise navigation speed monitoring, target ship berthing monitoring, continuous navigation monitoring and anchor-walking reminding, the navigation speed monitoring refers to monitoring of the speed of a target ship, the target ship berthing monitoring refers to monitoring of the berthing behavior of the target ship, the continuous navigation monitoring refers to monitoring of the continuous navigation behavior of the target ship, the anchor-walking reminding refers to monitoring of whether the ship walks the anchor or not, and the ship is reminded when the ship is monitored to walk the anchor.
204: and receiving an operation instruction of a monitoring item in a pull-down menu of the function selection box, and determining the monitoring item of the target ship according to the operation instruction.
In the embodiment of the present application, the cruise speed supervision device receives an operation instruction for a monitoring item in the pull-down menu of the function selection box, and determines the monitoring item of the target ship according to the operation instruction, for example, when an operation instruction such as a click operation for the monitoring item in the pull-down menu is received, the monitoring item indicated by the operation instruction is taken as the monitoring item of the target ship.
205: and if the monitoring item of the target ship is determined to be the monitoring of the navigation speed, displaying a condition setting frame on the network geographic information system.
In this embodiment of the application, if it is determined that the monitoring item of the target ship is the monitoring of the navigation speed according to the operation instruction, the navigation speed supervision device displays the condition setting frame on the network geographic information system.
206: and receiving a preset value through the condition setting frame, and saving the preset value.
In the embodiment of the present application, the cruise speed supervision apparatus may receive a preset value through the above condition setting, and store the preset value, where the preset value is a criterion for determining whether the speed of the target ship deviates from a standard speed by too much. It can be seen that the preset values in the implementation of the present application are manually set by the manager, and thus the preset values corresponding to different ships may be different.
In another implementation manner, the first preset value and the second preset value are received through the condition setting block, and the first preset value is different from the second preset value. The first preset value is a standard for judging whether the speed of the target ship is larger than a standard speed when the navigation speed of the target ship is larger than the standard speed, and the second preset value is a standard for judging whether the navigation speed of the target ship is smaller than the standard speed when the navigation speed of the target ship is smaller than the standard speed.
207: and sending an information feedback instruction to the target ship to indicate the target ship to send navigation information of the target ship, wherein the navigation information comprises navigation speed, speed measurement time points and position information, and the navigation speed contained in the navigation information corresponds to the speed measurement time points one to one.
In the embodiment of the application, after determining the target ship, setting the monitoring item of the target ship as the monitoring of the navigation speed and setting the preset value of the target ship, the navigation speed supervision device sends an information feedback instruction to the target ship so as to instruct the target ship to send the navigation information of the target ship to the navigation speed supervision device. The navigation information describes the navigation condition of the target ship at sea, and comprises navigation speed, speed measurement time points, position information and the like, wherein the navigation speed describes the speed of the target ship at the speed measurement time points, the position information is the position of the target ship at the speed measurement time points, so the navigation speed and the speed measurement time points contained in the navigation information are in one-to-one correspondence, and the position information and the speed measurement time points are in one-to-one correspondence.
It should be noted that the cruise speed supervision device searches for a signal of the target ship in real time to receive the cruise information sent by the target ship at irregular time in real time. The navigation speed supervision equipment judges the sequence of the navigation information according to the received time points or the speed measuring time points in the navigation information, and it is noted that the difference value between the received time points and the speed measuring time points is very small and can be ignored, and the speed measuring time points are directly used as the received time points.
208: and receiving navigation information of the target ship.
In the embodiment of the present application, the voyage speed supervision device receives the voyage information of the target ship, that is, the voyage information of the target ship is received once every fixed time period.
Further, the target ship transmits its own navigation information through an Automatic Identification System (AIS), and the navigation information of the target ship is message information generated by the automatic identification system.
It should be noted that the message information refers to information obtained by encapsulating the navigation information according to a preset format, and the AIS system is a short name for an automatic identification system of a ship and is composed of a shore-based (base station) facility and a shipborne device. The AIS system can be matched with a global positioning system to broadcast the ship position, ship speed, changed course rate and course and other ship dynamic state information in combination with ship name, call sign, draft, dangerous goods and other ship static state information from a very high frequency to ships and shore stations in nearby water areas, so that the nearby ships and shore stations can timely master the dynamic and static state information of all ships on nearby sea surfaces, and the ships and shore stations can communicate and coordinate with each other immediately to take necessary avoidance actions, thereby greatly helping the safety of the ships.
In another practical manner, a Universal Automatic Identification System (UAIS) evolved from the AIS system is used.
209: and determining that the target ship is located in a busy traffic area according to the position information in the navigation information.
In the embodiment of the application, before judging whether the navigation speed of the target ship is abnormal according to the obtained navigation information of the target ship, the navigation speed supervision device judges whether the target ship is located in a busy traffic area according to the position information in the navigation information, and only when the target ship is located in the busy traffic area, the step of judging whether the navigation speed of the target ship is abnormal according to the navigation information of the target ship is executed.
210: and calculating the percentage of the sailing speed of the target ship deviating from the standard speed, wherein the standard speed is the sailing speed of the target ship at the previous speed measurement time point.
In the embodiment of the present application, the cruising speed monitor apparatus acquires a standard speed representing an optimal speed at which the target ship navigates, and calculates the percentage of the cruising speed in the cruising information of the target ship that deviates from the standard speed, that is, calculates the absolute value of the percentage of the cruising speed that is lower or higher than the standard speed. The standard speed is the navigation speed of the target ship at the previous speed measurement time point, that is, the navigation speed of the target ship in the previous navigation information is received before the current latest navigation information is received.
The standard speed is exemplified as the navigation speed of the target ship at the previous speed measurement time point, the navigation speed in the navigation information received at the previous speed measurement time point (N-1) is set as the standard speed when the navigation information is received at the current speed measurement time point N, the navigation speed in the navigation information received at the previous speed measurement time point (N +1) is set as the standard speed when the navigation information is received at the current speed measurement time point (N +1), and the standard speed corresponding to the current time point is determined according to the method when the navigation information is received at the later time point. Therefore, in the method, the standard speed of each time point may be different, and the standard speed of the current speed measurement time point depends on the navigation speed of the previous speed measurement time point.
211: and if the percentage is larger than a preset value, determining that the navigation speed of the target ship is abnormal.
In the embodiment of the application, the navigation speed supervision device acquires a preset value used for judging whether the navigation speed of the target ship deviates from the standard percentage and is too large, compares the preset value with the percentage, and if the percentage is larger than the preset value, the navigation speed of the target ship is abnormal.
In another implementable manner, when the sailing speed of the target ship is greater than the standard speed, acquiring a first preset value, comparing the calculated percentage of the sailing speed deviating from the standard speed with the first preset value, and determining that the sailing speed of the target ship is abnormal under the condition that the percentage is greater than the first sum; and when the navigation speed of the target ship is smaller than the standard speed, acquiring a second preset value, comparing the calculated percentage of the navigation speed deviating from the standard speed with the second preset value, and determining that the navigation speed of the target ship is abnormal under the condition that the percentage is larger than the second preset value.
In the embodiment of the present application, the sailing speed of the target ship is greater than the percentage of the standard speed, and the percentage that is lower than the standard speed may correspond to different preset values, for example, the preset values include a first preset value and a second preset value, when the sailing speed of the target ship is greater than the standard speed and the percentage that deviates from the standard speed is calculated, the percentage is compared with the first preset value, and when the sailing speed of the target ship is less than the standard speed and the percentage that deviates from the standard speed is calculated, the percentage is compared with the second preset value, and the first preset value is different from the second preset value.
212: and displaying alarm information to prompt management personnel to take measures.
In the embodiment of the application, the navigation speed supervision equipment displays the alarm information under the condition of determining that the navigation speed of the target ship is abnormal, and the alarm information is used for prompting a manager to take a countermeasure. The warning information comprises navigation information of the target ship, the percentage of the navigation speed in the navigation information deviating from the standard speed and the like.
In the embodiment of the application, rich interfaces are displayed on the display interface of the visual network geographic information system, so that a manager can quickly select a target ship, a monitoring item of the target ship and a preset value for judging whether the navigation speed of the target ship deviates from the navigation speed of the previous speed measuring time point and is overlarge, then information feedback information is sent to the target ship, the target ship sends navigation information to a navigation speed monitoring device at the local end, after the navigation information of the target ship is received, whether the target ship is in a busy traffic area is judged according to position information in the navigation information, if yes, the percentage of the navigation speed in the navigation information deviating from the navigation speed of the previous speed measuring time point is calculated to judge whether the navigation speed of the target ship is abnormal or not, and if yes, alarm information is displayed, to prompt the manager to take countermeasures. Therefore, after the target ship is judged to be in the area with heavy traffic, whether the navigation speed of the target ship is abnormal or not is judged, the embodiment of the application can be applied to sudden acceleration or sudden deceleration of the target ship at a place with more ships, and therefore the target ship is effectively prevented from suddenly accelerating or suddenly decelerating at the place with heavy traffic due to mechanical faults and the like. In summary, the embodiment of the application further improves the monitoring efficiency and the real-time performance of the navigation speed by providing a visual network geographic information system and allowing a manager to set numerical values such as preset values.
It should be noted that the above description of the various embodiments is intended to emphasize the differences between the various embodiments, and the same or similar parts may be referred to each other, and therefore, for brevity, the description is not repeated herein.
The embodiment of the application also provides a navigation speed supervision device, which is used for executing the unit of the navigation speed supervision method. Specifically, refer to fig. 3, which is a schematic block diagram of a cruise speed supervision apparatus provided in an embodiment of the present application. The cruise speed supervision device of the embodiment comprises: a receiving unit 310, a calculating unit 320, a determining unit 330, and a displaying unit 340. Specifically, the method comprises the following steps:
a receiving unit 310, configured to receive navigation information of a target ship, where the navigation information includes a navigation speed; a calculating unit 320 for calculating a percentage of the sailing speed of the target ship deviating from a standard speed; a determining unit 330, configured to determine that the navigation speed of the target ship is abnormal if the percentage is greater than a preset value; and the display unit 340 is used for displaying alarm information to prompt a manager to take a countermeasure.
In another practical manner, the navigation information further includes a speed measurement time point, the navigation speed included in the navigation information corresponds to the speed measurement time point one to one, and the standard speed is the navigation speed of the target ship at the previous speed measurement time point.
In another practical manner, the navigation information further includes position information, and the determining unit 330 is further configured to determine that the target ship is located in a heavy traffic area according to the position information in the navigation information.
In another practical manner, the display unit 340 is further configured to display a network geographic information system including at least one ship icon; the receiving unit 310 is further configured to receive a ship selection instruction through the network geographic information system; the determining unit 330 is further configured to determine the target ship according to the ship selecting instruction; the monitoring apparatus further includes a sending unit 350, configured to send an information feedback instruction to the target ship to instruct the target ship to send the navigation information of the target ship.
In another practical manner, the display unit 340 is further configured to display a function selection box on the network geographic information system; the receiving unit 310 is further configured to receive an operation instruction for a monitoring item in the pull-down menu of the function selection box; the determining unit 330 is further configured to determine a monitoring item of the target ship according to the operation instruction; the transmitting unit 350 is further configured to transmit an information feedback instruction to the target ship when it is determined that the monitoring item of the target ship is monitoring of the sailing speed.
In another practical manner, the display unit 340 is further configured to display a condition setting frame on the network geographic information system; the receiving unit 310 is further configured to receive the preset value through the condition setting frame; the monitoring device further comprises a storage unit 360 for storing the preset value.
In another practical manner, the navigation information of the target ship is message information generated by the target ship using an automatic ship identification system.
In the embodiment of the application, the ship speed monitoring device at the local end receives the navigation information of a target ship through the receiving unit, acquires the navigation speed in the navigation information, then the calculating unit calculates the percentage of the deviation of the navigation speed from the standard speed, the determining unit judges whether the navigation speed of the target ship deviates from the standard speed by too much by comparing the percentage with the preset value, and if the percentage is greater than the preset value, the display unit displays the alarm information to prompt a manager to take a countermeasure. In summary, the embodiments of the present application automatically complete the process from collecting the navigation information of the target ship to analyzing the navigation speed in the navigation information without manual operation, so as to determine whether the speed of the target ship is abnormal, and thus, the embodiments of the present application provide an efficient ship speed monitoring method. The ship speed abnormality judgment method has the advantages that the manager only needs to set the standard speed when the local device is initialized, the standard speed represents the optimal sailing speed of the target ship, and the manager does not need to set the abnormal speed of the ship. Therefore, the embodiment of the application can effectively monitor the abnormal speed of the target ship and is very suitable for monitoring the conditions that the speed of a high-speed ship is too low and the speed of a low-speed ship is too high, because if the speed of the low-speed ship (cargo ship) is too high, the economic cost is high, and because the mass of the ship is large, accidents easily happen at high speed, and if the speed of the high-speed ship is too low, the ship cannot normally sail, for example, a hydrofoil ship, a pair of hydrofoils is arranged at the front and at the back of the bottom of the hydrofoil ship, and when the ship carries high-speed sailing, the ship body is lifted out of the water by the lift force generated by the hydrofoils, so that the resistance of water to the ship can be reduced, and the effect of waves on the ship can be reduced.
Referring to fig. 4, it is a schematic block diagram of a cruise speed supervision apparatus according to another embodiment of the present application. The cruise speed supervision apparatus in the present embodiment as shown in the drawings may include: one or more processors 410, a communication interface 420, and a memory 430. The processor 410, communication interface 420, and memory 430 are connected by a bus 440. The communication interface 420 is used for communication with other devices. The memory 430 is used to store computer programs comprising program instructions, and the processor 410 is used to execute the program instructions stored by the memory 430. Specifically, the method comprises the following steps:
a processor 410 for executing the function of the calculating unit 320 for calculating the percentage of the sailing speed of the target ship deviating from the standard speed; the function of the determining unit 330 is further implemented to determine that the sailing speed of the target ship is abnormal if the percentage is greater than a preset value;
a communication interface 420 for performing the function of the receiving unit 310, and for receiving the navigation information of the target ship, wherein the navigation information includes a navigation speed;
the cruise speed supervision apparatus further includes an output device 450 for performing the function of the display unit 340 to display warning information to prompt a manager to take a countermeasure.
In another practical manner, the navigation information further includes a speed measurement time point, the navigation speed included in the navigation information corresponds to the speed measurement time point one to one, and the standard speed is the navigation speed of the target ship at the previous speed measurement time point.
In another practical implementation manner, the navigation information further includes position information, and the processor 410 is further configured to determine that the target ship is located in a heavy traffic area according to the position information in the navigation information.
In another practical way, the output device 450 is further configured to display a network geographic information system including at least one ship icon; the communication interface 420 is further configured to receive a ship selection instruction through the network geographic information system; the processor 410 is further configured to determine the target ship according to the ship selection instruction; the communication interface 420 is further configured to execute a function of a sending unit 350, configured to send an information feedback instruction to the target ship to instruct the target ship to send the navigation information of the target ship.
In another practical manner, the output device 450 is further configured to display a function selection box on the network geographic information system; the communication interface 420 is further configured to receive an operation instruction for a monitoring item in the pull-down menu of the function selection box; the processor 410 is further configured to determine a monitoring item of the target ship according to the operation instruction; the communication interface 420 is further configured to send an information feedback instruction to the target ship when it is determined that the monitoring item of the target ship is monitoring the navigation speed.
In another practical manner, the output device 450 is further configured to display a condition setting frame on the network geographic information system; the communication interface 420 is further configured to receive the preset value through the condition setting frame; the processor 410 is further configured to execute the function of the saving unit 360, and is configured to save the preset value.
In another practical manner, the navigation information of the target ship is message information generated by the target ship using an automatic ship identification system.
It should be understood that, in the embodiment of the present Application, the Processor 410 may be a Central Processing Unit (CPU), and the Processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 430 may include a read-only memory and a random access memory, and provides instructions and data to the processor 410. A portion of memory 430 may also include non-volatile random access memory. For example, the memory 430 may also store device type information.
In a specific implementation, the processor 410 described in this embodiment of the present application may execute the implementation manners described in the first embodiment and the second embodiment of the method for monitoring a navigation speed provided in this embodiment of the present application, and may also execute the implementation manner of the device for monitoring a navigation speed described in this embodiment of the present application, which is not described herein again.
In another embodiment of the present application, a computer-readable storage medium is provided that stores a computer program comprising program instructions for execution by a processor. :
the computer readable storage medium may be an internal storage unit of the cruise speed supervision device of any of the foregoing embodiments, such as a hard disk or a memory of the cruise speed supervision device. The computer readable storage medium may also be an external storage device of the cruise speed supervision device, such as a plug-in hard disk provided on the cruise speed supervision device, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the computer-readable storage medium may also include both an internal storage unit of the cruise speed supervision device and an external storage device. The computer-readable storage medium is used to store computer programs and other programs and data required by the cruise speed supervision device. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality using different cruise speed supervision methods for each particular application, but such implementation is not considered to be beyond the scope of the present application.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described navigation speed supervision device and unit may refer to the corresponding processes in the foregoing navigation speed supervision method embodiment, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed cruise speed supervision apparatus and cruise speed supervision method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of 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, devices or units, and may also be an electric, mechanical or other form of connection.
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 network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.
In addition, functional units in the embodiments of the present application 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 application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in 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 cruise speed monitoring device, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Claims (8)
1. A method of monitoring the speed of a vessel, comprising:
receiving navigation information of a target ship, wherein the navigation information comprises navigation speed, speed measurement time points and position information; the navigation speed corresponds to the speed measuring time point one by one; the navigation information is generated and transmitted by the target ship through an automatic identification system AIS (automatic identification system) of the ship;
after the target ship is judged to be in a busy traffic area according to the position information, calculating the percentage of the sailing speed of the target ship deviating from the standard speed; the standard speed is the navigation speed of the target ship at the previous speed measurement time point;
if the percentage is larger than a preset value, determining that the navigation speed of the target ship is abnormal;
displaying alarm information to prompt management personnel to take corresponding measures;
the preset values comprise a first preset value and a second preset value, and if the percentage is greater than the preset value, determining that the sailing speed of the target ship is abnormal, wherein the method comprises the following steps:
when the navigation speed of the target ship is greater than the standard speed, if the percentage is greater than a first preset value, determining that the navigation speed of the target ship is abnormal; and when the navigation speed of the target ship is smaller than the standard speed, if the percentage is larger than a second preset value, determining that the navigation speed of the target ship is abnormal.
2. The method of claim 1, wherein prior to receiving the voyage information for the target vessel, further comprising:
displaying a network geographic information system comprising at least one ship icon;
receiving a ship selection instruction through the network geographic information system;
determining the target ship according to the ship selection instruction;
and sending an information feedback instruction to the target ship to indicate the target ship to send the navigation information of the target ship.
3. The method of claim 2, wherein after receiving the vessel selection command and before sending the information feedback command to the target vessel, further comprising:
displaying a function selection box on the network geographic information system;
receiving an operation instruction for a monitoring item in a pull-down menu of the function selection box;
determining a monitoring project of the target ship according to the operation instruction;
and if the monitoring item of the target ship is determined to be the monitoring of the navigation speed, executing the operation of sending the information feedback instruction to the target ship.
4. The method of claim 3, wherein after determining that the monitored item is cruise speed monitoring, before sending an information feedback instruction to the target ship, further comprising:
displaying a condition setting frame on the network geographic information system;
receiving the preset value through the condition setting frame;
and saving the preset value.
5. The method according to any one of claims 1 to 4, wherein the navigation information of the target ship is message information generated by the target ship using an automatic ship identification system.
6. A cruise speed supervision apparatus, comprising:
the receiving unit is used for receiving navigation information of a target ship, wherein the navigation information comprises navigation speed, speed measurement time points and position information; the navigation speed corresponds to the speed measuring time point one by one; the navigation information is generated and transmitted by the target ship through an automatic identification system AIS (automatic identification system) of the ship;
the calculating unit is used for calculating the percentage of the sailing speed of the target ship deviating from the standard speed after judging that the target ship is in a busy traffic area according to the position information; the standard speed is the navigation speed of the target ship at the previous speed measurement time point;
the determining unit is used for determining that the navigation speed of the target ship is abnormal if the percentage is larger than a preset value;
the display unit is used for displaying the alarm information so as to prompt a manager to take a corresponding measure;
the determining unit is specifically configured to determine that the sailing speed of the target ship is abnormal if the percentage is greater than a first preset value when the sailing speed of the target ship is greater than a standard speed; and when the navigation speed of the target ship is smaller than the standard speed, if the percentage is larger than a second preset value, determining that the navigation speed of the target ship is abnormal.
7. Cruise supervision device comprising a processor, a communication interface and a memory, said processor, communication interface and memory being interconnected, wherein said communication interface is adapted to communicate with other devices, said memory is adapted to store a computer program comprising program instructions, said processor being configured to invoke said program instructions for performing the method according to any of claims 1-5.
8. A computer-readable storage medium, characterized in that the computer storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to perform the method according to any of claims 1-5.
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