CN109714728A - The integrated target monitoring system in a kind of day sea - Google Patents
The integrated target monitoring system in a kind of day sea Download PDFInfo
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- CN109714728A CN109714728A CN201910067125.9A CN201910067125A CN109714728A CN 109714728 A CN109714728 A CN 109714728A CN 201910067125 A CN201910067125 A CN 201910067125A CN 109714728 A CN109714728 A CN 109714728A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention proposes the integrated target monitoring system in a kind of day sea, it include: aerial monitoring network, sea monitoring network and ocean observatory, ocean observatory includes the seabed anchor node and AUV node for being distributed in seabed, sea monitoring network includes the water surface float node and unmanned boat node for being set to sea, and aerial monitoring network is unmanned plane ad-hoc network;Aerial monitoring network, sea monitoring network and ocean observatory can be interacted directly with base station on the bank, aerial monitoring network and ocean observatory can be interacted again by sea monitoring network simultaneously, and be interacted by sea monitoring network with base station on the bank.The monitoring structure that the present invention is combined using aerial monitoring network, sea monitoring network and three net of ocean observatory, aerial, sea and seabed environmental data can be obtained simultaneously, furthermore, the present invention is based on aerial monitoring network, sea monitoring network and ocean observatory three nets to interact, multiple transmission paths are constructed, the reliability of monitoring data transmission is enhanced.
Description
Technical field
The present invention relates to environmental monitoring field, the integrated target monitoring system in especially a kind of day sea.
Background technique
Current environmental monitoring system is more single, is broadly divided into celestial environment monitoring system, sea environmental monitoring system
System is monitored with subsea environment, but it is mutually indepedent between each system, lack data interaction, each system is to monitoring environment task
It executes, control instruction realization can only be issued by remote control module.
And each system is generally divided into static monitoring techniques network and dynamic monitoring network, static monitoring techniques network needs to lay a large amount of
Sensor unit, and monitor region be extremely limited.And the flexibility of dynamic ad hoc network network is high, but lacks between data link steady
It is qualitative, it is poor for the transmission reliability of monitoring data.
Summary of the invention
Goal of the invention: in order to solve the above technical problems, the present invention proposes the integrated target monitoring system in a kind of day sea.
Technical solution: the scheme of present invention solution technical problem are as follows:
The integrated target monitoring system in a kind of day sea, comprising: aerial monitoring network, sea monitoring network and seabed monitoring net
Network;Wherein,
Ocean observatory includes the seabed anchor node and AUV node for being distributed in seabed;Seabed anchor node location is fixed, and is used
Subsea environment information within the scope of acquisition self communication, AUV node travel in working region according to preset path, AUV section
Point in the process of moving, passes through the peripherad seabed anchor node broadcasts group of underwater sound communication as the routing node in working region
Net information after seabed anchor node receives mesh information, is created to the communication link of AUV, and by collected subsea environment information
AUV node is sent to by the communication link of creation;
Sea monitoring network includes the water surface float node and unmanned boat node for being set to sea;Water surface float node is laid
In on sea, and fluctuates and move with wave;Water surface float node has the function of underwater sound communication and LTE wireless communication function;AUV
Node floats up to phytal zone after completing working region information collection, and passes through water with the water surface float node in communication range
Sound communication interaction data;Unmanned boat Node distribution, as sea road sensor node, acquires the sea environment on periphery on sea
Information;Meanwhile unmanned boat node, as sea routing node, unmanned boat node is travelled according to preset path, is being travelled on the way, nothing
The continuous broadcast networking information of people's ship node, after water surface float node receives mesh information, is created to the communication of unmanned boat node
Link, and the subsea environment information being collected into is sent to unmanned boat node;Unmanned boat node passes through in base station on the bank and monitoring
The heart establishes data link, the data for acquiring and being collected into is uploaded to monitoring center, and receive what monitoring center issued
Mission bit stream;
Aerial monitoring network is unmanned plane ad-hoc network, and each unmanned plane section all has routing function, can be turned by storage
Communication link is established between other unmanned plane nodes outside hair technology and self communication range;Unmanned plane node passes through satellite and bank
Collected air-data is passed to monitoring center by base station on the bank, and receives monitoring center and issue by upper base station communication
Assignment instructions;Unmanned plane node is also used as the routing node of aerial monitoring network Yu sea monitoring network, and unmanned plane node is logical
It crosses electromagnetic communication and unmanned boat node establishes data link, realize between aerial monitoring network and sea monitoring network
Data interaction.
Further, pass through underwater sound communication interaction data between the AUV node and unmanned boat node.
Further, the unmanned boat node carries wireless energy charging device, for filling to AUV node and unmanned plane node
Energy.
Further, ad-hoc network is formed by ZigBee technology between the unmanned boat and unmanned boat, unmanned boat is from group
One or more parks are set in network in the host node on sea, host node and base station interaction data on the bank.
Further, the unmanned boat has wireless self-networking module and data protocol conversion module;Wherein, wirelessly from group
Net module is for realizing the networking between networking and unmanned boat between unmanned boat and unmanned boat and water surface float node;Data
Protocol conversion module is for converting the inter-network data packet received according to the protocol rule of its target network.
The utility model has the advantages that compared with prior art, present invention has the advantage that
1, the monitoring knot that the present invention is combined using aerial monitoring network, sea monitoring network and three net of ocean observatory
Structure can obtain aerial, sea and seabed environmental data simultaneously;
2, aerial monitoring network, sea monitoring network and ocean observatory can be interacted directly with base station on the bank, together
When aerial monitoring network and ocean observatory can be interacted again by sea monitoring network, and pass through sea monitoring net
Network is interacted with base station on the bank, enhances the reliability of monitoring data transmission.
Detailed description of the invention
Fig. 1 is the structure chart of the integrated target monitoring system in day sea.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Fig. 1 show system architecture diagram of the invention, and the integrated target monitoring system in day sea proposed by the present invention includes:
Aerial monitoring network, sea monitoring network and ocean observatory;Wherein,
Ocean observatory includes the seabed anchor node and AUV node for being distributed in seabed;Seabed anchor node location is fixed, and is used
Subsea environment information within the scope of acquisition self communication, AUV node travel in working region according to preset path, AUV section
Point in the process of moving, passes through the peripherad seabed anchor node broadcasts group of underwater sound communication as the routing node in working region
Net information after seabed anchor node receives mesh information, is created to the communication link of AUV, and by collected subsea environment information
AUV node is sent to by the communication link of creation;
Sea monitoring network includes the water surface float node and unmanned boat node for being set to sea;Water surface float node is laid
In on sea, and fluctuates and move with wave;Water surface float node has the function of underwater sound communication and LTE wireless communication function;AUV
Node floats up to phytal zone after completing working region information collection, and passes through water with the water surface float node in communication range
Sound communication interaction data;Unmanned boat Node distribution, as sea road sensor node, acquires the sea environment on periphery on sea
Information;Meanwhile unmanned boat node, as sea routing node, unmanned boat node is travelled according to preset path, is being travelled on the way, nothing
The continuous broadcast networking information of people's ship node, after water surface float node receives mesh information, is created to the communication of unmanned boat node
Link, and the subsea environment information being collected into is sent to unmanned boat node;Unmanned boat node passes through in base station on the bank and monitoring
The heart establishes data link, the data for acquiring and being collected into is uploaded to monitoring center, and receive what monitoring center issued
Mission bit stream;
Aerial monitoring network is unmanned plane ad-hoc network, and each unmanned plane section all has routing function, can be turned by storage
Communication link is established between other unmanned plane nodes outside hair technology and self communication range;Unmanned plane node passes through satellite and bank
Collected air-data is passed to monitoring center by base station on the bank, and receives monitoring center and issue by upper base station communication
Assignment instructions;Unmanned plane node is also used as the routing node of aerial monitoring network Yu sea monitoring network, and unmanned plane node is logical
It crosses electromagnetic communication and unmanned boat node establishes data link, realize between aerial monitoring network and sea monitoring network
Data interaction.
Above-mentioned networking mode, networking flexibility, AUV node and unmanned boat node are all the nodes that can carry out energy supplement,
Compared to static monitoring techniques network, the energy maintenance of each node is more stable.
There is following communication link in above scheme:
1, the communication link between aerial monitoring network and ground, unmanned plane node can directly pass through satellite and ground base station
Interaction can also be routing node by other unmanned plane nodes, interact with ground base station;
2, the communication link between sea monitoring network and ground, unmanned boat node and bank base station can direct communication,
The unmanned boat node and ground in ad-hoc network close to bank base station can be passed through by forming ad-hoc network with other unmanned boat nodes
It is communicated between face;
3, ocean observatory passes through the communication link between sea monitoring network and ground, the composition of the link are as follows: sea
Bottom anchor node-AUV node-water surface float node-unmanned boat node-bank base station;Or seabed anchor node-AUV node-water surface
Other routing nodes-bank base station in buoy node-unmanned boat node-unmanned boat node Ad Hoc network network;
4, aerial monitoring network is become by the communication link between sea monitoring network and ground, link group: unmanned plane
Other roads in node-unmanned boat node-bank base station or unmanned plane node-unmanned boat node-unmanned boat node Ad Hoc network network
By node-bank base station;
5, aerial monitoring network passes through the communication link between sea monitoring network and ocean observatory, link composition
Are as follows: unmanned plane node-unmanned boat node-AUV node-seabed anchor node;Or unmanned plane node-unmanned boat node-water surface float
Node-AUV node-seabed anchor node.
Further, pass through underwater sound communication interaction data between the AUV node and unmanned boat node.
Further, the unmanned boat node carries wireless energy charging device, for filling to AUV node and unmanned plane node
Energy;AUV node obtains the position of unmanned boat by the data interaction between unmanned boat node, the navigation mould carried by AUV
Block is navigated at unmanned boat node and is charged;And unmanned plane node obtains unmanned boat by the data interaction between unmanned boat node
Position, drop at unmanned boat node charge.
Further, ad-hoc network is formed by ZigBee technology between the unmanned boat and unmanned boat, unmanned boat is from group
One or more parks are set in network in the host node on sea, host node and base station interaction data on the bank.
Further, the unmanned boat has wireless self-networking module and data protocol conversion module;Wherein, wirelessly from group
Net module is for realizing the networking between networking and unmanned boat between unmanned boat and unmanned boat and water surface float node;Data
Protocol conversion module is for converting the inter-network data packet received according to the protocol rule of its target network.
The monitoring structure that the present invention is combined using aerial monitoring network, sea monitoring network and three net of ocean observatory,
Aerial, sea and seabed environmental data can be obtained simultaneously;Aerial monitoring network, sea monitoring network and ocean observatory are equal
It can directly be interacted with base station on the bank, while aerial monitoring network and ocean observatory can pass through sea monitoring network phase again
Mutually interaction, and interacted by sea monitoring network with base station on the bank, enhance the reliability of monitoring data transmission.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. the integrated target monitoring system in a kind of day sea characterized by comprising aerial monitoring network, sea monitoring network and sea
Bottom monitoring network;Wherein,
Ocean observatory includes the seabed anchor node and AUV node for being distributed in seabed;Seabed anchor node location is fixed, for adopting
Collect the subsea environment information within the scope of self communication, AUV node travels in working region according to preset path, and AUV node is made
Believed in the process of moving by the peripherad seabed anchor node broadcasts networking of underwater sound communication for the routing node in working region
Breath, after seabed anchor node receives mesh information, is created to the communication link of AUV, and collected subsea environment information is passed through
The communication link of creation is sent to AUV node;
Sea monitoring network includes the water surface float node and unmanned boat node for being set to sea;Water surface float node is laid in sea
On face, and fluctuates and move with wave;Water surface float node has the function of underwater sound communication and LTE wireless communication function;AUV node
After completing working region information collection, phytal zone is floated up to, and logical by the underwater sound with the water surface float node in communication range
Believe interaction data;Unmanned boat Node distribution, as sea road sensor node, acquires the sea environment letter on periphery on sea
Breath;Meanwhile unmanned boat node, as sea routing node, unmanned boat node is travelled according to preset path, is being travelled on the way, nobody
The continuous broadcast networking information of ship node, after water surface float node receives mesh information, is created to the communication chain of unmanned boat node
Road, and the subsea environment information being collected into is sent to unmanned boat node;Unmanned boat node passes through base station and monitoring center on the bank
Data link is established, the data for acquiring and being collected into are uploaded to monitoring center, and receives times that monitoring center issues
Business information;
Aerial monitoring network is unmanned plane ad-hoc network, and each unmanned plane section all has routing function, can forward skill by storage
Communication link is established between other unmanned plane nodes outside art and self communication range;Unmanned plane node passes through satellite and base on the bank
It stands communication, collected air-data is passed into monitoring center by base station on the bank, and receive that monitoring center issues appoint
Business instruction;Unmanned plane node is also used as the routing node of aerial monitoring network Yu sea monitoring network, and unmanned plane node passes through electricity
Magnetic wave communication establishes data link with unmanned boat node, realizes the data between aerial monitoring network and sea monitoring network
Interaction.
2. the integrated target monitoring system in a kind of day according to claim 1 sea, which is characterized in that the AUV node and nothing
Pass through underwater sound communication interaction data between people's ship node.
3. the integrated target monitoring system in a kind of day according to claim 2 sea, which is characterized in that the unmanned boat node is taken
With wireless energy charging device, for filling energy to AUV node and unmanned plane node.
4. a kind of day according to claim 1 integrated target monitoring system in sea, which is characterized in that the unmanned boat and nobody
Ad-hoc network is formed by ZigBee technology between ship, the one or more parks of setting are in the master on sea in unmanned boat ad-hoc network
Node, host node and base station interaction data on the bank.
5. the integrated target monitoring system in a kind of day according to claim 1 sea, which is characterized in that the unmanned boat has nothing
Line ad hoc network module and data protocol conversion module;Wherein, wireless self-networking module is for realizing between unmanned boat and unmanned boat
Networking and unmanned boat and water surface float node between networking;Data protocol conversion module is used for the inter-network number that will be received
It is converted according to packet according to the protocol rule of its target network.
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111181627A (en) * | 2020-01-08 | 2020-05-19 | 中国电子科技集团公司电子科学研究院 | Target detection system |
CN111194024A (en) * | 2020-01-08 | 2020-05-22 | 中国电子科技集团公司电子科学研究院 | Maritime emergency communication system |
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CN111245920A (en) * | 2020-01-08 | 2020-06-05 | 中国电子科技集团公司电子科学研究院 | Marine ranching monitoring system |
CN111426810A (en) * | 2020-05-11 | 2020-07-17 | 河海大学 | Air-space-ground-integration-oriented water environment monitoring system deployment method |
CN112053591A (en) * | 2020-08-24 | 2020-12-08 | 大连海事大学 | Offshore three-dimensional linkage networking and channel supervision system of unmanned aerial vehicle group cooperative intelligent navigation mark |
CN112556574A (en) * | 2020-11-26 | 2021-03-26 | 河北工程大学 | Water-air cooperative aqueduct crack detection and positioning method |
CN112612212A (en) * | 2020-12-30 | 2021-04-06 | 上海大学 | Heterogeneous multi-unmanned system formation and cooperative target driving-away method |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050090201A1 (en) * | 2003-08-20 | 2005-04-28 | Mark Lengies | System and method for a mobile AD HOC network suitable for aircraft |
CN103149893A (en) * | 2013-01-29 | 2013-06-12 | 中国人民解放军装备学院 | Maneuvering self-organization situation monitoring system |
CN105007138A (en) * | 2015-06-05 | 2015-10-28 | 华南理工大学 | Opportunity data return method of underwater sensor network |
CN107135099A (en) * | 2017-04-28 | 2017-09-05 | 任勇 | Space exploration device and system waterborne |
CN107168314A (en) * | 2017-05-19 | 2017-09-15 | 上海海洋大学 | Buoy data message transferring device based on unmanned boat system |
CN107707292A (en) * | 2017-11-07 | 2018-02-16 | 海南大学 | LTE seas emergency communication system based on unmanned boat base station networking |
-
2019
- 2019-01-24 CN CN201910067125.9A patent/CN109714728B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050090201A1 (en) * | 2003-08-20 | 2005-04-28 | Mark Lengies | System and method for a mobile AD HOC network suitable for aircraft |
CN103149893A (en) * | 2013-01-29 | 2013-06-12 | 中国人民解放军装备学院 | Maneuvering self-organization situation monitoring system |
CN105007138A (en) * | 2015-06-05 | 2015-10-28 | 华南理工大学 | Opportunity data return method of underwater sensor network |
CN107135099A (en) * | 2017-04-28 | 2017-09-05 | 任勇 | Space exploration device and system waterborne |
CN107168314A (en) * | 2017-05-19 | 2017-09-15 | 上海海洋大学 | Buoy data message transferring device based on unmanned boat system |
CN107707292A (en) * | 2017-11-07 | 2018-02-16 | 海南大学 | LTE seas emergency communication system based on unmanned boat base station networking |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111181627A (en) * | 2020-01-08 | 2020-05-19 | 中国电子科技集团公司电子科学研究院 | Target detection system |
CN111194024A (en) * | 2020-01-08 | 2020-05-22 | 中国电子科技集团公司电子科学研究院 | Maritime emergency communication system |
CN111245920A (en) * | 2020-01-08 | 2020-06-05 | 中国电子科技集团公司电子科学研究院 | Marine ranching monitoring system |
CN111194024B (en) * | 2020-01-08 | 2021-12-21 | 中国电子科技集团公司电子科学研究院 | Maritime emergency communication system |
CN111245945A (en) * | 2020-01-15 | 2020-06-05 | 北京工业大学 | Marine oil spilling supervisory systems based on buoy and unmanned aerial vehicle control |
CN111426810A (en) * | 2020-05-11 | 2020-07-17 | 河海大学 | Air-space-ground-integration-oriented water environment monitoring system deployment method |
CN112053591A (en) * | 2020-08-24 | 2020-12-08 | 大连海事大学 | Offshore three-dimensional linkage networking and channel supervision system of unmanned aerial vehicle group cooperative intelligent navigation mark |
CN112556574A (en) * | 2020-11-26 | 2021-03-26 | 河北工程大学 | Water-air cooperative aqueduct crack detection and positioning method |
CN112612212A (en) * | 2020-12-30 | 2021-04-06 | 上海大学 | Heterogeneous multi-unmanned system formation and cooperative target driving-away method |
CN113347642A (en) * | 2021-04-30 | 2021-09-03 | 深圳智造谷工业互联网创新中心有限公司 | Deployment method of wireless communication network, electronic device and computer storage medium |
CN113347642B (en) * | 2021-04-30 | 2022-11-04 | 深圳智造谷工业互联网创新中心有限公司 | Deployment method of wireless communication network, electronic device and computer storage medium |
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