CN110780324B - Electronic ship board based on real-time connection of Internet of things - Google Patents
Electronic ship board based on real-time connection of Internet of things Download PDFInfo
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- CN110780324B CN110780324B CN201910956123.5A CN201910956123A CN110780324B CN 110780324 B CN110780324 B CN 110780324B CN 201910956123 A CN201910956123 A CN 201910956123A CN 110780324 B CN110780324 B CN 110780324B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The invention provides an electronic ship board based on real-time connection of the Internet of things, which is arranged in a ship control room for marine navigation. Detecting a detection result of the ship in a first preset peripheral range by continuously transmitting radio waves with different frequencies, and determining a position sharing mode of the current ship according to the detection result; the radio waves are transmitted by the radio wave transmitting controller located at the highest position of the ship according to the control command of the electronic ship, and when the electronic ship is applied to a plurality of ships distributed in the same sea area or a sea area within a preset range, the positions of the ships can be mutually shared based on the technology of the internet of things, so that the master control end can uninterruptedly master the positions of all the ships, and meanwhile, a positioning satellite does not need to be connected in most of time, and the burden problem of using a commercial navigation system for a long time in a large scale is avoided.
Description
Technical Field
The invention belongs to the technical field of real-time positioning, and particularly relates to an electronic ship board based on real-time connection of the Internet of things and a using method thereof.
Background
Compared with land transportation and air transportation, the water transportation system has the advantages of large water transportation capacity, low cost, low energy consumption and less pollution, and has an important supporting effect on national economic development of China. However, transport by water, particularly marine transport across the intercontinental region, presents greater challenges relative to transport by land, air.
In the long-distance and large-range sea and land transportation process, it is very important to master the current position of the transportation ship in real time. However, due to the wide range of changes of the geographic environment, the conventional location state monitoring technology suitable for land transportation, such as wifi positioning, Zigbee positioning, bluetooth positioning, and various short-distance positioning technologies cannot be used, and similar to air transportation, the long-distance and wide-range communication mainly uses radio waves, and is combined with a positioning satellite navigation system to realize location monitoring, such as GPS and beidou navigation systems.
For example, a water transportation safety management system based on the internet of things technology, which is provided by the chinese patent application with the application number CN201210239082.6, includes a control processor, an external data information acquisition module and a data information transmission module, wherein the control processor is connected with the external data information acquisition module for acquiring data, and the control processor is also connected with the data information transmission module for transmitting information; the external data information acquisition module comprises a GPS global positioning module, a load detection module, an inclination detection module, an RFID identification module and an identity identification ID setting storage module which are connected to the control processor in advance through data, and various information of the ship can be obtained through various sensors installed on the ship, the GPS global positioning module and the RFID identification module, wherein the information includes the current position, the running speed, the running direction, the load carrying passenger quantity, the ship inclination angle, personnel and cargo access records and the like.
However, it is also obvious for a marine enterprise, which is long-term, large-scale, high-volume and has a large number, that each time a marine voyage is made, the burden of relying on various commercial navigation systems for a long time is also significant. This burden is not only reflected in the economic burden of renting various commercial navigation systems, but also includes the maintenance and upgrade of various hardware required for local data traffic transmission, storage device upgrade, and call quality assurance.
The Internet of things (IoT), i.e., "Internet of everything connected to" is an extended and expanded network on the basis of the Internet, and combines various information sensing devices with the Internet to form a huge network, thereby realizing the intercommunication of people, machines and things at any time and any place. The internet of things is an important component of a new generation of information technology, and the IT industry is called as follows: the interconnection means that the objects are connected and all the objects are connected. Thus, "the internet of things is the internet to which things are connected". This has two layers: firstly, the core and the foundation of the internet of things are still the internet, and the internet is an extended and expanded network on the basis of the internet; second, the user end extends and extends to any article to article for information exchange and communication. Therefore, the definition of the internet of things is a network which connects any article with the internet according to an agreed protocol through information sensing equipment such as radio frequency identification, infrared sensors, global positioning systems, laser scanners and the like, and performs information exchange and communication so as to realize intelligent identification, positioning, tracking, monitoring and management of the article.
Compared with the traditional connection technology, the core of the internet of things is 'object connection', namely, the existing connection state of a target object is fully utilized to serve the internet of things. For large water-transport enterprises distributed all over the world, the traditional use state that each ship is made to be a government is changed into a state that the internet of things is used for sharing information with each other.
The Chinese patent application with the application number of CN201310644209.7 provides a ship inquiry system based on the Internet of things, which comprises a ship cloud system, an inquiry controller is in wireless connection with the ship cloud system through an information sending/receiving device to inquire relevant information of ships, and relevant merchants can also issue own information of products, services and the like in the cloud system. However, the technical scheme of the invention is simple and rough, and a specific and effective implementation mode cannot be given.
Disclosure of Invention
The present invention is directed to a corresponding and effective solution for solving the above technical problems.
The invention provides an electronic ship board based on real-time connection of the Internet of things, which is arranged in a ship control room for marine navigation. Detecting a detection result of the ship in a first preset peripheral range by continuously transmitting radio waves with different frequencies, and determining a position sharing mode of the current ship according to the detection result; the radio waves are transmitted by the radio wave transmitting controller located at the highest position of the ship according to the control command of the electronic ship, and when the electronic ship is applied to a plurality of ships distributed in the same sea area or a sea area within a preset range, the positions of the ships can be mutually shared based on the technology of the internet of things, so that the master control end can uninterruptedly master the positions of all the ships, and meanwhile, a positioning satellite does not need to be connected in most of time, and the burden problem of using a commercial navigation system for a long time in a large scale is avoided.
Specifically, the technical scheme provided by the invention is as follows:
in a first aspect of the invention, an electronic ship board based on real-time connection of the internet of things is provided, and the electronic ship board is arranged in a ship control room for ocean navigation.
As a first advantage, the electronic ship board is connected to a radio wave emission controller located at the highest position of the ship;
as a key technical means for embodying the above advantages, the radio wave emission controller emits radio waves of respective different frequencies, which are different in propagation manner, based on a detection result of the ship within a first predetermined peripheral range;
through the radio waves with different frequencies, the electronic ship board receives the position of at least one other ship and shares the navigation state of the electronic ship board with the other ships and the master control end;
the first predetermined range is determined based on a height value H from the sea level at the highest position of the ship;
if the current electronic ship board controls the radio wave transmission controller to detect the position of at least one other ship by transmitting radio waves of a first predetermined frequency range within the first predetermined range, the ship maintains the current radio wave transmission state and the sailing state, and repeats the above detection and maintenance processes after a first predetermined time interval;
if the position of any other ship is not detected in the first peripheral preset range in the detection and holding process, the electronic ship board controls the radio wave emission controller to emit radio waves in a second preset frequency range, and the navigation state of the electronic ship board is shared to the master control end;
wherein the first predetermined frequency is different from a second predetermined frequency;
the first peripheral preset range is a peripheral sea area range which takes the electronic ship board as a circle center and has a radius of R;
the radius R and the height value H meet the following conditions:
wherein R isEThe radius of the earth.
The above is one of the determination manners that the ship is in a relatively stationary state or operates in a small range, which is a first peripheral predetermined range;
as a second advantage of the present invention, when the vessel is in a traveling state, the first peripheral predetermined range is further defined as: two equal sector areas of an angular bisector of the current advancing direction of the ship in a peripheral sea area range with the electronic ship board as the circle center and the radius of R; the central angle corresponding to the circular arcs of the two equal fan-shaped areas is theta, and the theta meets the following conditions:
wherein HGThe height of a positioning satellite from the sea level is communicated with the master control end and the electronic ship board.
And 3 positioning satellites are provided, and one of the positioning satellites is selected by the master control end to communicate with the ship according to the change of the current position of the ship.
In the technical scheme of the invention, the number of the positioning satellites is only 3, so that even under the condition that a small part of the positioning satellites are required to be used, the positioning can be realized by only a small number of positioning satellites without the need of positioning more than 3 or even more satellites in the prior art. This is because the electronic ship board of the present invention is applied to marine navigation, and does not need to be positioned at a specific height; one of the three satellites can recover the positioning state after acquiring the communication of the terminal console;
and if the current electronic ship board controls the radio wave emission controller to detect the position of at least one other ship by emitting radio waves in a first preset frequency range, inquiring whether the other ship keeps a communication state with the master control end, and if so, disconnecting the current electronic ship board from the master control end.
Further, if the current electronic ship board controls the radio wave transmission controller to detect the position of at least one other ship by transmitting radio waves of a first predetermined frequency range, it is inquired whether the other ship maintains a communication state with the general control terminal, and if so, the current electronic ship board disconnects from the positioning satellite.
In practical implementation, the position height of the radio wave emission controller is adjustable; specifically, if a non-sea area range is detected in both of two equal sector areas having the current ship advancing direction as an angular bisector within a first peripheral predetermined range, the position height of the radio wave emission controller is lowered.
As a further preference, if a non-sea area range is detected in both of the two equal sector areas with the current advancing direction of the ship as an angular bisector within the first peripheral predetermined range, the current electronic ship board controls the radio wave transmission controller to transmit the radio wave of the third predetermined frequency range.
In a second aspect of the present invention, there is provided a method for using the electronic ship board, the method comprising the steps of:
s1: acquiring the altitude of a radio wave emission controller of a current ship;
s2: calculating the range radius of a first preset peripheral sea area range with the electronic ship board as the center of a circle;
s3: determining whether the radio waves of the first predetermined frequency range transmitted by the radio wave transmission controller detect the position of at least one other ship within the first predetermined peripheral sea area;
if so, return to step S2;
if not, go to step S4: (ii) a
S4: the electronic ship board controls the radio wave emission controller to emit radio waves of a second predetermined frequency range, shares the sailing state of the electronic ship board to the master control terminal, and returns to step S2. .
Further advantages of the present invention will be further apparent from the detailed description of the preferred embodiments in conjunction with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of an electronic watercraft board usage scenario of the present application;
FIG. 2 is a schematic view of the electronic watercraft tag communication structure of the present application;
FIG. 3 is a schematic view of a predetermined range scan of the electronic watercraft tag of the present application;
fig. 4 is a flow chart of a method of using the electronic watercraft tag of the present application.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
It is first noted that the illustrations depicted in fig. 1-3 are schematic representations only, and that some of the dimensions are not necessarily drawn to scale relative to actual dimensions. Some of the dimensional details (e.g., earth radius/satellite altitude/tangent right angle) are magnified, scaled down, or skewed as necessary for illustration, but will be understood by those skilled in the art in light of the text written in this application as a whole.
Referring to fig. 1, a schematic view of a usage scenario of the electronic ship board of the present application is shown.
The electronic ship board is arranged in a ship control room for marine navigation and is connected with a radio wave emission controller positioned at the highest position of the ship;
the radio wave emission controller emits radio waves of corresponding different frequencies, which are different in propagation manner, based on a detection result of the ship within a first predetermined peripheral range;
through the radio waves of different frequencies, the electronic ship board receives the position of at least one other ship and shares the navigation state of the electronic ship board with the other ships and the general control end.
With further reference to fig. 2, the first predetermined range is determined based on a height value H from sea level at the highest position of the vessel;
the first peripheral preset range is a peripheral sea area range which takes the electronic ship board as a circle center and has a radius of R;
the radius R and the height value H meet the following conditions:
wherein R isEThe radius of the earth.
If the current electronic ship board controls the radio wave transmission controller to detect the position of at least one other ship by transmitting radio waves of a first predetermined frequency range within the first predetermined range, the ship maintains the current radio wave transmission state and the sailing state, and repeats the above detection and maintenance processes after a first predetermined time interval;
if the position of any other ship is not detected in the first peripheral preset range in the detection and holding process, the electronic ship board controls the radio wave emission controller to emit radio waves in a second preset frequency range, and the navigation state of the electronic ship board is shared to the master control end.
In the present embodiment, there are three propagation modes of radio waves used, ground waves, sky waves, and waves propagating along straight lines.
The ground wave is relatively stable in propagation, is not affected by day-night variations, and can reach places other than the horizon along the curved earth surface, so that the ground waves including long waves, medium waves and medium waves are used for radio broadcasting.
Since the ground wave has to lose energy continuously during the propagation process and the loss is larger at higher frequencies (shorter wavelengths), the propagation distance of the medium and short waves is not large, generally in the range of hundreds of kilometers, and the radio can only listen to the radio station of the local or adjacent provinces in the two bands. The long wave is far away from the ground, but the equipment for transmitting the long wave is large and high in cost, and the long wave is rarely used for radio broadcasting and is mainly used for ultra-long-distance radio communication, navigation and the like.
Radio waves that propagate by means of reflections from the ionosphere are called sky waves. For medium, medium and short wavelengths, the shorter the wavelength, the less it is absorbed and the more it is reflected by the ionosphere. Thus, short waves are most suitably propagated in the form of sky waves, which may be reflected by the ionosphere beyond a few thousand kilometers.
Electromagnetic waves, microwaves and ultrashort waves, which propagate along a straight line, cannot propagate in the form of neither ground waves nor sky waves by means of ionospheric reflections. They travel in a straight line, as does visible light. Such electromagnetic waves propagating along a straight line are called space waves or sight waves.
The earth's surface is spherical, the microwaves propagate along straight lines, and in order to increase the propagation distance, the transmitting antenna and the receiving antenna are both built high, but only up to tens of kilometers. When performing long-distance communication, a relay station is set up. Both television and radar use microwaves.
The microwaves can now be transmitted using geostationary communication satellites. Since the synchronous communication satellite is stationary at 36000km above the equator, it is used as a relay station to enable radio signals to cross continents and oceans.
Spatial line waves: the radio waves that travel straight from the transmitting location to the receiving location in the space are called space straight radio waves, also called straight waves or line-of-sight waves. The propagation distance is the range of line of sight, only tens of kilometers. The interphone and the radar which are equipped in the fishery ship are both devices which communicate by utilizing a space wave propagation mode.
In the present embodiment, the radio wave of the first predetermined frequency range is a spatial linear wave; the radio waves of the second predetermined frequency range may be ground waves, sky waves, or a combination thereof;
further referring to fig. 3, a schematic view of a predetermined range scan of an electronic ship board of a ship in motion.
During vessel travel, the first peripheral predetermined range is further defined as: two equal sector areas of an angular bisector of the current advancing direction of the ship in a peripheral sea area range with the electronic ship board as the circle center and the radius of R; the central angle corresponding to the circular arcs of the two equal fan-shaped areas is theta, and the theta meets the following conditions:
wherein HGThe height of a positioning satellite from the sea level is communicated with the master control end and the electronic ship board.
According to the selected positioning satellite, HGAnd may vary from 2 kilometres to 4 kilometres.
In correspondence with this, the aforementioned first predetermined range of greater range, determined on the basis of the height value H from the sea level at the highest position of the vessel, may be a predetermined scanning range when the vessel is relatively stationary or in a small range of motion.
At this time, if the current electronic ship board controls the radio wave transmission controller to detect the position of at least one other ship by transmitting radio waves of a first predetermined frequency range, it is inquired whether the other ship maintains a communication state with the master control terminal, and if so, the current electronic ship board disconnects from the master control terminal.
Preferably, if the current electronic ship board controls the radio wave transmission controller to detect the position of at least one other ship by transmitting radio waves of a first predetermined frequency range, it is inquired whether the other ship maintains a communication state with the general control terminal, and if so, the current electronic ship board disconnects from the positioning satellite.
Wherein the position height of the radio wave emission controller is adjustable.
Referring to fig. 3, if a non-sea area range is detected in both of two equal sector areas having the current ship advancing direction as an angular bisector within a first peripheral predetermined range, the position height of the radio wave transmission controller is lowered.
Referring to fig. 3, if a non-sea area range is detected in both of two equal sector areas having the current ship advancing direction as an angular bisector within the first peripheral predetermined range, the current electronic ship board controls the radio wave transmission controller to transmit radio waves of a third predetermined frequency range.
The radio waves of the third predetermined frequency range are preferably ground waves.
Referring to fig. 4, there is provided a method of using the electronic ship board, the method including the steps of:
s1: acquiring the altitude of a radio wave emission controller of a current ship;
s2: calculating the range radius of a first preset peripheral sea area range with the electronic ship board as the center of a circle;
s3: determining whether the radio waves of the first predetermined frequency range transmitted by the radio wave transmission controller detect the position of at least one other ship within the first predetermined peripheral sea area;
if so, return to step S2; if not, go to step S4: (ii) a
S4: the electronic ship board controls the radio wave emission controller to emit radio waves of a second predetermined frequency range, shares the sailing state of the electronic ship board to the master control terminal, and returns to step S2.
According to the technical scheme, the current situation that the existing positioning technology depends on a navigation system seriously can be changed, the advantages of the Internet of things are fully utilized, the idea of interconnection of everything is utilized to the maximum extent under the condition that a network or a GPS is not needed, and the communication burden is reduced.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (9)
1. The utility model provides an electron boats and ships tablet based on thing networking real-time connection, electron boats and ships tablet sets up in the boats and ships control room of ocean navigation, its characterized in that: the electronic ship board is connected with a radio wave emission controller positioned at the highest position of the ship;
the radio wave emission controller emits corresponding radio waves of different frequencies based on the detection result of the ship in a first peripheral preset range, and the propagation modes of the radio waves of different frequencies are different;
through the radio waves with different frequencies, the electronic ship board receives the position of at least one other ship and shares the navigation state of the electronic ship board with the other ships and the master control end;
the first peripheral predetermined range is determined based on a height value H from the sea level at the highest position of the ship;
if the current electronic ship board controls the radio wave emission controller to detect the position of at least one other ship by emitting radio waves of a first predetermined frequency range within the first peripheral predetermined range, the ship maintains the current radio wave emission state and the sailing state, and repeats the above detection and maintenance processes after a first predetermined time interval;
if the position of any other ship is not detected in the first peripheral preset range in the detection and holding process, the electronic ship board controls the radio wave emission controller to emit radio waves in a second preset frequency range, and the navigation state of the electronic ship board is shared to the master control end;
wherein the first predetermined frequency is less than a second predetermined frequency;
the first peripheral preset range is a peripheral sea area range which takes the electronic ship board as a circle center and has a radius of R;
the radius R and the height value H meet the following conditions:
wherein R isEThe radius of the earth.
2. The electronic watercraft tag of claim 1, wherein the first peripheral predetermined range is further defined as: two equal sector areas of an angular bisector of the current advancing direction of the ship in a peripheral sea area range with the electronic ship board as the circle center and the radius of R; the central angle corresponding to the circular arcs of the two equal fan-shaped areas is theta, and the theta meets the following conditions:
wherein HGThe height of a positioning satellite from the sea level is communicated with the master control end and the electronic ship board.
3. The electronic ship board according to claim 2, wherein the number of the positioning satellites is 3, and the total control terminal selects one of the positioning satellites to communicate with the ship according to the change of the current position of the ship.
4. The electronic ship board according to claim 1, wherein if the current electronic ship board controls the radio wave transmission controller to detect the location of at least one other ship by transmitting radio waves of a first predetermined frequency range, it is inquired whether the other ship maintains a communication state with the overall control terminal, and if so, the current electronic ship board disconnects from the overall control terminal.
5. The electronic ship board according to claim 2, wherein if the current electronic ship board controls the radio wave transmission controller to detect the location of at least one other ship by transmitting radio waves of a first predetermined frequency range, it is inquired whether the other ship maintains a communication state with the general control terminal, and if so, the current electronic ship board disconnects from the positioning satellite.
6. The electronic watercraft board as claimed in claim 1, wherein the positional height of said radio wave emission controller is adjustable.
7. The electronic ship board according to claim 6, wherein if a non-sea area is detected in both of the two equal sectors having the current ship-advancing direction as an angular bisector within the first peripheral predetermined range, the altitude of the radio wave emission controller is lowered.
8. The electronic ship board according to claim 6, wherein if a non-sea area range is detected in both of two equal sector areas having the current ship advancing direction as an angular bisector within the first peripheral predetermined range, the current electronic ship board controls the radio wave emission controller to emit radio waves of a third predetermined frequency range.
9. A method of using the electronic watercraft tag as claimed in any one of claims 1 to 8, the method comprising the steps of:
s1: acquiring the altitude of a radio wave emission controller of a current ship;
s2: calculating the range radius of a first preset periphery range taking the electronic ship board as the center of a circle;
s3: determining whether the radio waves of the first predetermined frequency range transmitted by the radio wave transmission controller detect the position of at least one other ship within the first peripheral predetermined range;
if so, return to step S2;
if not, go to step S4;
s4: the electronic ship board controls the radio wave emission controller to emit radio waves of a second predetermined frequency range, shares the sailing state of the electronic ship board to the master control terminal, and returns to step S2.
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