CN113438709A - Network access method, device and system for marine ship equipment - Google Patents
Network access method, device and system for marine ship equipment Download PDFInfo
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- CN113438709A CN113438709A CN202110713248.2A CN202110713248A CN113438709A CN 113438709 A CN113438709 A CN 113438709A CN 202110713248 A CN202110713248 A CN 202110713248A CN 113438709 A CN113438709 A CN 113438709A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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Abstract
The application discloses a method, a device and a system for accessing a network of marine vessel equipment, wherein the method comprises the following steps: receiving a network access instruction, wherein the network access instruction is used for controlling target ship equipment to be accessed to carry out network connection; responding to a network access instruction, and acquiring a network signal searched by target ship equipment; determining a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device based on the network signal; and when the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, accessing the signal transmitting equipment according to the network access operation corresponding to the signal transmitting equipment so as to establish a network communication link between the target ship equipment and the signal transmitting equipment. The present application is directed to different signal transmitting devices such as: the shore-based base station or the first ship equipment adopts different networking strategies, so that the ship equipment on the sea surface can be ensured to be networked in batches, and meanwhile, the networking success rate of the ocean-going ship equipment can be effectively improved.
Description
Technical Field
The application relates to the technical field of ship communication, in particular to a network access method, device and system of marine ship equipment.
Background
All ships on the sea surface are communication nodes, and the distribution level is clear, as shown in fig. 5. The number of ships near the coast is large and the distribution is dense, and the ships are mostly civil transport ships; the number of ships on the far coast is small, the ships are sparsely distributed, and the ships are mostly fishing ships, large-scale oil tankers, military ships and the like. Most of the existing maritime wireless communication modes are shore-based mobile communication and satellite communication, however, the coverage area of the shore-based base station is limited (<110km), in order to ensure that the received signal can be decoded successfully, the user terminal can only access the base station with the distance less than 110km as the guarantee of basic communication, and when the number of the accessed user terminals is too large, the access distance is reduced. However, the satellite communication coverage area relates to most of open sea areas, but the wide use of the satellite communication coverage area is limited due to the limited bandwidth, the overlong time delay and the high network access cost.
Disclosure of Invention
In order to solve the technical problems or at least partially solve the technical problems, the application provides a network access method, a network access device and a network access system for marine vessel equipment.
According to an aspect of the embodiments of the present application, there is provided a network access method for marine equipment, applied to marine equipment, including:
receiving a network access instruction, wherein the network access instruction is used for controlling target ship equipment to be accessed to carry out network connection;
responding to the network access instruction, and acquiring a network signal searched by the target ship equipment;
determining a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device based on the network signal, wherein the signal transmitting device comprises: a shore-based base station or a first marine vessel;
and when the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, accessing the signal transmitting equipment according to the network access operation corresponding to the signal transmitting equipment so as to establish a network communication link between the target ship equipment and the signal transmitting equipment.
Further, the determining, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device includes:
determining that the signal transmitting device is a shore-based base station under the condition that the network signal is a base station network signal;
acquiring a base station network state and a base station identifier of the shore-based base station from the network signal;
and determining the base station identifier and the base station network state as the first device network access information.
Further, when the network access information of the first device is used to indicate that the signal transmitting device is currently accessible, accessing the signal transmitting device according to the network access operation corresponding to the signal transmitting device includes:
and under the condition that the base station network state is used for indicating that the shore-based base station is accessible currently, accessing the shore-based base station by using a single-hop mode to establish a network communication link between the target ship equipment and the shore-based base station.
Further, after controlling the target ship device to access the signal transmitting device in the single-hop mode, the method further includes:
generating a target access state and a target relay state of the target ship equipment, wherein the target access state is used for representing the connection state of the ship equipment and a shore-based base station, and the target relay state is used for representing the network load state of the ship equipment;
and writing the target access state and the target relay state into a ship network signal, and sending the ship network signal so that ship equipment which receives the ship network signal and does not access the network executes network access operation according to the ship network signal.
Further, the determining, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device includes:
determining that the signal transmitting equipment is first ship equipment under the condition that the network signal is a ship network signal;
acquiring a first equipment identifier, a first access state and a first relay state of the first ship equipment from the ship network signal;
and determining the first ship identifier, the first access state and the first relay state as the first equipment network access information.
Further, when the network access information of the first device is used to indicate that the signal transmitting device is currently accessible, accessing the signal transmitting device according to the network access operation corresponding to the signal transmitting device includes:
under the condition that the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, accessing the first ship equipment, and establishing a network communication link between the target ship equipment and a shore-based base station through the first ship equipment;
wherein the first device network access information indicating that the signal transmitting device is currently accessible comprises: the first access state is used for indicating that the first ship equipment is directly connected with a shore-based base station currently, and the first relay state is used for indicating that the network load of the first ship equipment is in a balanced state.
Further, after the controlling the target ship device to access the first ship device by using a multi-hop method, the method further includes:
and sending a network access result to the first ship equipment so that the first ship equipment updates the first relay state according to the network access result.
Further, in a case where the target ship device searches for a plurality of network signals, the determining that the signal transmitting device is a first ship device that has entered a network includes:
acquiring the signal-to-noise ratio of each ship network signal;
and determining the first ship network signal with the maximum signal-to-noise ratio, and determining the ship equipment corresponding to the first ship network signal as the first ship equipment.
Further, in a case that the device network entry information indicates that the signal transmitting device is currently inaccessible, the method further includes:
acquiring a second ship network signal with the maximum signal-to-noise ratio except the first ship network signal, and determining second ship equipment corresponding to the second ship network signal;
and controlling the target ship equipment to be connected into the second ship equipment.
Further, in the case that the network signal searched by the target ship device is not acquired, the method further includes:
monitoring displacement information generated by the target ship equipment;
receiving and transmitting ship network signals according to a preset period under the condition that the target ship equipment is determined to move according to the displacement information;
acquiring neighbor ship equipment of the target ship equipment and second equipment network access information of the neighbor ship equipment according to the ship network signal, wherein the second equipment network access information comprises a second access state and/or a second relay state corresponding to the neighbor ship equipment;
and executing network access operation according to the network access information of the second equipment.
Further, the executing a network access operation according to the network access information of the second device includes:
generating a network access request according to the network access information of the second equipment and the target ship identification of the target ship equipment under the condition that the second access state is used for indicating that the neighbor ship equipment is in the distributed cluster;
sending a network access request to the neighbor ship equipment so that the neighbor ship equipment sends the network access request to the distributed cluster, and authenticating the network access request through other ship equipment in the distributed cluster;
receiving an authentication result fed back by the neighbor ship equipment;
and accessing the neighbor ship equipment and joining the distributed cluster through the neighbor ship equipment under the condition that the authentication result is used for indicating that all ship equipment in the distributed cluster passes the authentication of the network access request.
Further, the executing a network access operation according to the network access information of the second device includes:
sending networking request information to the neighbor ship equipment under the condition that the second access state is used for indicating that the neighbor ship equipment is not in the distributed cluster, wherein the networking request information is used for establishing the distributed cluster of the target ship equipment and the neighbor ship equipment;
receiving networking response information fed back by the neighbor ship equipment;
and establishing a distributed cluster corresponding to the target ship equipment and the neighbor ship equipment based on the networking response information, wherein any ship equipment in the distributed cluster is communicated with the ship equipment which is accessed to the network through an unmanned aerial vehicle.
According to still another aspect of the embodiments of the present application, there is provided a network access apparatus for marine vessel equipment, including:
the system comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for receiving a network access instruction, and the network access instruction is used for controlling target ship equipment to be accessed to a network to carry out network connection;
the acquisition module is used for responding to the network access instruction and acquiring the network signal searched by the target ship equipment;
a determining module, configured to determine, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device, where the signal transmitting device includes: a shore-based base station or a first marine vessel;
and the processing module is used for accessing the signal transmitting equipment according to the network access operation corresponding to the signal transmitting equipment under the condition that the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, so as to establish a network communication link between the target ship equipment and the signal transmitting equipment.
According to still another aspect of the embodiments of the present application, there is also provided a network entry system for marine vessel equipment, including: the system comprises signal transmitting equipment and target ship equipment to be networked;
the signal transmitting equipment is used for transmitting network signals;
the target vessel arrangement is adapted to perform the above-mentioned method steps.
According to another aspect of the embodiments of the present application, there is also provided a storage medium including a stored program that executes the above steps when the program is executed.
According to another aspect of the embodiments of the present application, there is also provided an electronic apparatus, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus; wherein: a memory for storing a computer program; a processor for executing the steps of the method by running the program stored in the memory.
Embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to perform the steps of the above method.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the present application is directed to different signal transmitting devices such as: the shore-based base station or the first ship equipment adopts different networking strategies, so that the ship equipment on the sea surface can be ensured to be networked in batches, and meanwhile, the networking success rate of the ocean-going ship equipment can be effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a flowchart of a network access method of a marine vessel facility according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a network access method of a marine vessel installation according to another embodiment of the present disclosure;
fig. 3 is a block diagram of a network access device of a marine vessel apparatus according to an embodiment of the present disclosure;
fig. 4 is a block diagram of a network access system of a marine vessel facility according to an embodiment of the present disclosure;
fig. 5 is an interactive schematic view of a network access system of a marine vessel apparatus according to an embodiment of the present disclosure;
fig. 6 is a block diagram of a shipborne mobile communication system provided by an embodiment of the present application;
fig. 7 is a block diagram of an onboard mobile communication system provided by an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments, and the illustrative embodiments and descriptions thereof of the present application are used for explaining the present application and do not constitute a limitation to the present application. 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 application.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another similar entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the application provides a method, a device and a system for accessing a network of marine vessel equipment. The method provided by the embodiment of the invention can be applied to any required electronic equipment, for example, the electronic equipment can be electronic equipment such as a server and a terminal, and the method is not particularly limited herein, and is hereinafter simply referred to as electronic equipment for convenience in description.
According to an aspect of embodiments of the present application, there is provided an embodiment of a method for network entry of a marine vessel installation, the method being applied to the marine vessel installation. Fig. 1 is a flowchart of a network access method of a marine vessel facility according to an embodiment of the present application, and as shown in fig. 1, the method includes:
and step S11, receiving a network access instruction, wherein the network access instruction is used for controlling the target ship equipment to be networked to carry out network connection.
And step S12, responding to the network access instruction, and acquiring the network signal searched by the target ship equipment.
In the embodiment of the application, a network access instruction is generated under the condition that the ship equipment needs to be in communication connection with a shore-based base station, and the network access instruction is used for controlling target ship equipment to be accessed to search for a network signal and executing network access operation according to the network signal.
Step S13, determining, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device, where the signal transmitting device includes: a shore based base station or a first marine vessel installation.
In this embodiment of the application, the step S13 of determining, based on the network signal, the signal transmitting device corresponding to the network signal and the first device network access information of the signal transmitting device includes the following steps a 1-A3:
step a1, in case the network signal is a base station network signal, determining the signal transmitting device to be a shore-based base station.
Step A2, obtaining the base station network state and base station identification of the shore-based base station from the network signal.
Step A3, the base station identifier and the network status of the base station are determined as the network access information of the first device.
In this embodiment of the present application, after receiving a network signal, a signal type of the network signal is analyzed, and if the signal type is used to indicate that the network signal is a base station network signal, it is determined that a signal transmitting device corresponding to the network signal is a shore-based base station, and a base station network state and a base station identifier of the shore-based base station are obtained from the network signal, for example: acquiring a state identifier for representing the network state of the base station from the network signal, wherein if the state identifier is 'T', the network state of the base station is normal; if the state flag is 'F', the network state of the base station is abnormal. And determining the network state of the base station and the base station identifier as the network access information of the first equipment.
In this embodiment of the application, the step S13 of determining, based on the network signal, the signal transmitting device corresponding to the network signal and the first device network access information of the signal transmitting device includes the following steps B1-B3:
and step B1, determining the signal transmitting equipment as the first ship equipment under the condition that the network signal is the ship network signal.
It should be noted that the first ship equipment is a ship equipment that has established a network connection with the shore-based base station.
Step B2, obtaining the first device identifier, the first access status and the first relay status of the first ship device from the ship network signal.
And step B3, determining the first ship identification, the first access state and the first relay state as the first equipment network access information.
In this embodiment of the application, after the network signal is received, the signal type of the network signal is analyzed, and if the signal type is used to indicate that the network signal is a ship network signal, it is determined that the signal transmitting device corresponding to the network signal is the first ship device.
In the embodiment of the application, the state identifier for indicating the first access state is acquired from the ship network signal, and if the state identifier of the first access state is "1", it indicates that the first ship device is currently connected directly to the shore-based base station.
Meanwhile, a state identifier for indicating a first relay state and a relay number are also acquired from the ship network signal, if the state identifier of the first relay state is "Y" and the relay number is "5/10", the first ship device is currently allowed to be in network connection with other ship devices, the relay number is "5", the first ship device is currently connected with 5 ship devices, and the relay threshold of the first ship device is "10".
If the status flag of the first relay status is "N" and the relay number is "10/10", it indicates that the current network load of the first ship device is too large to allow network connection with other ship devices.
It should be noted that, if the state flag of the access state is "1", it indicates that the first marine vessel device is currently connected directly to the shore-based base station. If the state is empty, the ship equipment is not connected to the network. In addition, the fixed threshold value of the ship equipment is displayed in the relay number, so that the purpose of preventing excessive ship equipment from being connected to a shore-based base station through the same relay equipment, the load of the relay equipment is excessive, the energy consumption is overlarge, and the effective survival time is suddenly reduced to disconnect other ship equipment from the relay equipment.
And step S14, when the first device network access information is used for indicating that the signal transmitting device is currently accessible, accessing the signal transmitting device according to the network access operation corresponding to the signal transmitting device to establish a network communication link between the target ship device and the signal transmitting device.
In this embodiment of this application, in step S14, when the first device network access information is used to indicate that the signal transmitting device is currently accessible, accessing the signal transmitting device according to a network access operation corresponding to the signal transmitting device includes:
and under the condition that the base station network state is used for indicating that the shore-based base station is accessible currently, accessing the shore-based base station by using a single-hop mode to establish a network communication link between the target ship equipment and the shore-based base station.
In the embodiment of the present application, after the target ship device is controlled to access the signal transmitting device in a single-hop manner, the method further includes the following steps C1-C2:
step C1, generating a target access state and a target relay state of the target ship equipment, wherein the target access state is used for representing the connection state of the ship equipment and the shore-based base station, and the target relay state is used for representing the network load state of the ship equipment;
and step C2, writing the target access state and the target relay state into the ship network signal, and transmitting the ship network signal, so that the ship equipment which receives the ship network signal and is not connected to the network executes the network connection operation according to the ship network signal.
It should be noted that after the target ship equipment is accessed to the shore-based base station in a single-hop manner, the target ship equipment may implement secondary coverage with a certain beam width and adaptive transmission power in the opposite direction from the arrival of the base station signal by using a directional antenna or an omnidirectional antenna in combination with a beam forming technology. And when the signal intensity difference between the signal sending direction of the base station and the signal sending direction of the base station is larger than 3dB, adopting the maximum sending power, otherwise, randomly selecting a sending power value to send the ship network signal, and adding a target access state and a target relay state corresponding to the target ship equipment in the ship network signal.
In this embodiment of this application, in step S14, when the first device network access information is used to indicate that the signal transmitting device is currently accessible, accessing the signal transmitting device according to a network access operation corresponding to the signal transmitting device includes:
and under the condition that the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, accessing the first ship equipment, and establishing a network communication link between the target ship equipment and the shore-based base station through the first ship equipment.
In the embodiment of the application, the target ship device successfully accesses the first ship device after a series of steps of applying, judging, synchronizing, temporarily scheduling, authenticating and registering and distributing the ID, and the first ship device is used as a relay device between the target ship device and the shore-based base station, so that a network communication link between the target ship device and the shore-based base station is established.
In this embodiment, the using the first device network access information to indicate that the signal transmitting device is currently accessible includes: in the first access state, the first relay state is used for indicating that the first ship device is currently connected with the shore-based base station directly (i.e. the state identifier of the first access state is "1"), and the first relay state is used for indicating that the network load of the first ship device is in a balanced state (i.e. the state identifier of the first relay state is "Y", and the relay number is smaller than a preset threshold value).
In this embodiment of the present application, after controlling a target ship device to access a first ship device in a multi-hop manner, the method further includes: and sending a network access result to the first ship equipment so that the first ship equipment updates the first relay state according to the network access result.
In the embodiment of the application, after the target ship equipment is connected to the first ship equipment, a network access result is sent to the first ship equipment, and if the network access result is successful, the first ship equipment can automatically update the relay state.
In another embodiment of the present application, step B1, in case that the target marine vessel device searches for a plurality of network signals, determining that the signal transmitting device is the first marine vessel device that has accessed the network, includes the following steps B101-B102:
step B101, acquiring the signal-to-noise ratio of each ship network signal;
and step B102, determining a first ship network signal with the largest signal-to-noise ratio, and determining ship equipment corresponding to the first ship network signal as first ship equipment.
In this embodiment of the present application, in a case that the device network entry information is used to indicate that the signal transmitting device is currently inaccessible, the method further includes the following steps B103-B104:
step B103, acquiring a second ship network signal with the largest signal-to-noise ratio except the first ship network signal, and determining second ship equipment corresponding to the second ship network signal;
and B104, controlling the target ship equipment to be connected into second ship equipment.
It should be noted that the snr refers to the ratio of signal to noise in an electronic device or electronic system. The target ship equipment can determine the ship equipment with the optimal ship network signal for connection by screening the ship equipment with the maximum signal-to-noise ratio.
In the embodiment of the application, as the number of the marine ship devices is large, the target ship device covers a certain sea area with self-adaptive transmitting power except that the target ship device is connected with the shore-based base station through the first ship device, and other ship devices within the range can directly establish a network link with the target ship device, so that multi-point-to-multi-point communication is realized, and a mesh subnet is established.
As shown in fig. 2, in the embodiment of the present application, in the case that a network signal searched by a target ship device is not acquired, the method further includes the following steps:
and step S21, monitoring the displacement information of the target ship equipment.
And step S22, receiving and transmitting the ship network signals according to a preset period under the condition that the target ship equipment is determined to move according to the displacement information.
Step S23, acquiring the neighbor ship device of the target ship device and the second device network access information of the neighbor ship device according to the ship network signal, wherein the second device network access information includes a second access state and/or a second relay state corresponding to the neighbor ship device.
And step S24, executing the network access operation according to the network access information of the second device.
In this embodiment of the application, the step S24, executing the network access operation according to the network access information of the second device, includes the following steps D1-D4:
step D1, generating a network access request according to the network access information of the second device and the target ship identification of the target ship device under the condition that the second access state is used for indicating that the neighbor ship device is in the distributed cluster;
step D2, sending a network access request to the neighboring ship equipment, so that the neighboring ship equipment sends the network access request to the distributed cluster, and authenticating the network access request through other ship equipment in the distributed cluster;
step D3, receiving the authentication result fed back by the neighbor ship equipment;
and D4, accessing the neighboring ship equipment and joining the distributed cluster through the neighboring ship equipment under the condition that the authentication result is used for indicating all the ship equipment in the distributed cluster to determine that the network access request passes the authentication.
In the embodiment of the application, if the target ship equipment does not search any network signal, the broadcast period of the AIS signal is increased, and the neighbor ship equipment is searched. Therefore, the target ship equipment is determined as distributed nodes, and a distributed group networking mode is adopted.
Specifically, the target ship equipment can share the antenna of the target ship equipment to form a distributed multi-antenna system besides sending the terminal data of the target ship equipment, and the data and the network access application information generated by any ship equipment in the group are relayed and forwarded in a relay cooperation mode.
As an example, after searching for the neighboring ship device, the target ship device may obtain second device network access information according to a network signal transmitted by the neighboring ship device, where the second device network access information includes a second access state and/or a second relay state corresponding to the neighboring ship device. If the second access state is used for indicating that the neighbor ship equipment exists in a certain distributed cluster, the target ship equipment sends a network access request to the neighbor ship equipment, at the moment, the neighbor ship equipment sends the network access request to other ship equipment in the distributed cluster, and when all the ship equipment in the distributed cluster determines that the network access request passes the authentication, the neighbor ship equipment sends an authentication result to the target ship equipment, wherein the authentication result comprises: the registration ID of the target vessel device joining the distributed cluster, and so on. And the target ship equipment establishes connection with the neighbor ship equipment according to the authentication result and joins the distributed cluster.
In this embodiment of the present application, the network access operation is performed according to the network access information of the second device, including the following steps E1-E3:
step E1, sending networking request information to the neighboring ship equipment under the condition that the second access state is used for indicating that the neighboring ship equipment is not in the distributed cluster, wherein the networking request information is used for establishing the distributed cluster of the target ship equipment and the neighboring ship equipment;
step E2, receiving networking response information fed back by the neighboring ship equipment;
and E3, establishing a distributed cluster corresponding to the target ship equipment and the neighbor ship equipment based on the networking response information, wherein any one ship equipment in the distributed cluster is communicated with the ship equipment which is accessed to the network through the unmanned aerial vehicle.
As an example, after searching for the neighboring ship device, the target ship device may obtain second device network access information according to a network signal transmitted by the neighboring ship device, where the second device network access information includes a second access state and/or a second relay state corresponding to the neighboring ship device. If the second access state is used for indicating that the neighbor ship equipment is not added into the distributed cluster, the target ship equipment sends networking request information to the neighbor ship equipment, at the moment, the neighbor ship equipment determines whether to perform networking with the target ship equipment according to the networking request information and sends networking response information to the target ship equipment, and if the networking response information is used for indicating that the neighbor ship equipment determines to perform networking with the target ship equipment, the target ship equipment establishes the distributed cluster with the neighbor ship equipment according to the networking response information. Because the ship equipment in the distributed cluster is far away from the ship equipment which is connected to the network, the unmanned aerial vehicle is used as relay equipment to be connected with the ship equipment which is connected to the network.
In the embodiment of the application, the distributed ship equipment at ocean adopts the time slot reservation TDMA based on the multi-channel orthogonal access to realize data transmission. Specifically, the time slot divides the entire frequency band resource into multiple interference-free orthogonal channels within each data subframe, such that each distributed node establishes communication links with multiple drones simultaneously.
It should be noted that the distributed intra-cluster nodes establish multilinks with the unmanned aerial vehicle relay node cluster, including the distributed nodes competing for scheduling and controlling the sending opportunities in the sub-frames, and adopt a time slot application mechanism, a time slot authorization mechanism, a sub-channel application mechanism, a sub-channel authorization mechanism and a five-time handshake scheduling confirmation mechanism to establish links with the intra-cluster nodes of the unmanned aerial vehicle, and each ship device in the distributed cluster occupies a corresponding time slot in the data sub-frame to send multiple information streams to multiple unmanned aerial vehicles. After the distributed ship equipment is subjected to relay cooperation through the unmanned aerial vehicle and is connected to the shore-based base station, data transmission is completed through the distributed time division orthogonal channel and other nodes. The data is decoded in the receiving node signal processing module using a decomposition reception, e.g., maximal ratio combining technique.
In the embodiment of the application, as the frequency band resource at sea is very limited, a plurality of ship equipment in the distributed group need to occupy a plurality of transmission time slots for relaying data transmission of certain source ship equipment, so that the space diversity gain is improved, but the simultaneous transmission of space information streams is limited. In order to improve the resource utilization rate, the access method is different from the access method that point-to-point TDMA transceiving ends adopt shared frequency band resources, only two ship devices establish one link at each moment, ship devices in a distributed cluster are designed to adopt time division orthogonal channels, namely, each time slot divides the whole frequency band resource into a plurality of orthogonal channels, so that each distributed ship device and a plurality of unmanned aerial vehicles establish the link at the same time, and no interference exists because the channels are orthogonal. Therefore, the utilization rate of space resources can be greatly improved. Meanwhile, the space diversity gain is utilized to compensate the signal fading of the ship equipment in the distributed cluster caused by multi-hop transmission.
Fig. 3 is a block diagram of a network access device of a marine vessel apparatus according to an embodiment of the present disclosure, which may be implemented as part or all of an electronic device through software, hardware, or a combination of the two. As shown in fig. 3, the apparatus includes:
the receiving module 31 is configured to receive a network access instruction, where the network access instruction is used to control a target ship device to be networked to perform network connection;
the obtaining module 32 is configured to obtain a network signal searched by the target ship device in response to the network access instruction;
the determining module 33 is configured to determine, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device;
and the processing module 34 is configured to access the signal transmitting device to establish a network communication link between the target ship device and the signal transmitting device, if the first device network access information is used to indicate that the signal transmitting device is currently accessible.
In the embodiment of the present application, the determining module 33 includes:
the selection submodule is used for determining the signal transmitting equipment as a shore-based base station under the condition that the network signal is a base station network signal;
the acquisition submodule is used for acquiring the base station network state of the shore-based base station from the network signal;
and the processing submodule is used for determining the network state of the base station as the network access information of the first equipment.
In this embodiment, the processing module 34 is configured to access the shore-based base station in a single hop manner to establish a network communication link between the target ship device and the shore-based base station if the base station network status is used to indicate that the shore-based base station is currently accessible.
The device in the embodiment of the application further comprises: the system comprises a generating module, a receiving module and a processing module, wherein the generating module is used for generating a target access state and a target relay state of target ship equipment, the target access state is used for representing the connection state of the ship equipment and a shore-based base station, and the target relay state is used for representing the network load state of the ship equipment; and writing the target access state and the target relay state into the ship network signal, and transmitting the ship network signal so that the ship equipment which receives the ship network signal and is not connected to the network executes network connection operation according to the ship network signal.
In the embodiment of the present application, the determining module 33 includes:
the selection submodule is used for determining the signal transmitting equipment as first ship equipment under the condition that the network signal is a ship network signal;
the acquisition submodule is used for acquiring a first equipment identifier, a first access state and a first relay state of first ship equipment from the ship network signal;
and the processing submodule is used for determining the first ship identifier, the first access state and the first relay state as the first equipment network access information.
In this embodiment of the present application, the processing module 34 is configured to access the first ship device in a multi-hop manner to establish a network communication link between the target ship device and the first ship device, when the first device network access information is used to indicate that the signal transmitting device is currently accessible; wherein, the first device network access information is used for indicating that the signal transmitting device is currently accessible and comprises: the first access state is used for indicating that the first ship equipment is directly connected with the shore-based base station currently, and the first relay state is used for indicating that the network load of the first ship equipment is in a balanced state.
The device in the embodiment of the application further comprises: and the sending module is used for sending the network access result to the first ship equipment so that the first ship equipment updates the first relay state according to the network access result.
In the embodiment of the application, the selection submodule is used for acquiring the signal-to-noise ratio of each ship network signal; and determining a first ship network signal with the maximum signal-to-noise ratio, and determining ship equipment corresponding to the first ship network signal as first ship equipment.
In the embodiment of the application, the selection submodule is further used for acquiring a second ship network signal with the largest signal-to-noise ratio except the first ship network signal, and determining second ship equipment corresponding to the second ship network signal; and controlling the target ship equipment to be connected into the second ship equipment.
The device in the embodiment of the application further comprises: networking module of
The monitoring submodule is used for monitoring displacement information generated by target ship equipment;
the sending submodule is used for receiving and sending ship network signals according to a preset period under the condition that the target ship equipment is determined to move according to the displacement information;
the acquisition submodule is used for acquiring neighbor ship equipment of the target ship equipment and second equipment network access information of the neighbor ship equipment according to the ship network signal, wherein the second equipment network access information comprises a second access state and/or a second relay state corresponding to the neighbor ship equipment;
and the execution submodule is used for executing the network access operation according to the network access information of the second equipment.
In the embodiment of the application, the execution submodule is configured to generate a network access request according to the network access information of the second device and the target ship identifier of the target ship device, when the second access state is used for indicating that the neighboring ship device is in the distributed cluster; sending a network access request to the unmanned aerial vehicle so that the unmanned aerial vehicle acquires third ship equipment for establishing a network communication link with the target ship equipment from the distributed cluster according to the network access request; receiving third equipment network access information of third ship equipment fed back by the unmanned aerial vehicle; and accessing the third ship equipment according to the third equipment network access information so as to enable the target ship equipment to join the distributed cluster.
In the embodiment of the application, the execution submodule is used for sending networking request information to the neighboring ship equipment under the condition that the second access state is used for indicating that the neighboring ship equipment is not in the distributed cluster, wherein the networking request information is used for establishing the distributed cluster of the target ship equipment and the neighboring ship equipment; receiving networking response information fed back by the neighboring ship equipment; and establishing a distributed cluster of the target ship equipment and the neighbor ship equipment based on the networking response information.
Fig. 4 is a block diagram of a network access system of a marine vessel device according to an embodiment of the present disclosure, which may be implemented as part or all of an electronic device through software, hardware, or a combination of the two. As shown in fig. 4, the system includes: a signal transmitting apparatus 100 and a target ship apparatus 200 to be networked. A signal transmitting apparatus 100 for transmitting a network signal; target vessel arrangement 200 for performing the above-mentioned method steps.
As an example, fig. 5 is an interactive schematic diagram of a network access system of a marine vessel equipment according to an embodiment of the present application, and as shown in fig. 5, the system includes: the system comprises a shore-based base station 1, a primary ship device 2, a secondary ship device 3, an unmanned aerial vehicle 4 and a distributed cluster 5.
In the present embodiment, the shore-based base station 1 is used to transmit a base station network signal to marine equipment on the sea surface. The ship equipment which is directly searched for the base station network signal and is directly connected with the shore-based base station is determined as the primary ship equipment 2. After the primary ship equipment 2 is connected to the network, certain beam width and self-adaptive transmitting power are transmitted in the direction opposite to the transmitting direction of the base station network signal to transmit the ship network signal so as to realize secondary coverage, and in the process of secondary coverage, the ship equipment connected with the primary ship equipment 2 through the ship network signal transmitted by the primary ship equipment 2 is determined as secondary ship equipment 3.
As shown in fig. 5, if the ship device does not search for the base station network signal transmitted by the shore-based base station 1 and the ship network signal transmitted by the primary ship device 2, a neighboring ship device is searched, and a distributed cluster 5 is established with the neighboring ship device, and after the distributed cluster 5 is established, the ship device is communicated with the ship device which has already entered the network through the unmanned aerial vehicle 4.
In the embodiment of the present application, ship equipment is provided with a ship-borne mobile communication system, and as shown in fig. 6, the ship-borne mobile communication system includes an antenna and radio frequency module, a terminal computing module, a signal processing module, a control module, a routing module, and an AIS/GPS positioning system module. As shown in fig. 6, the antenna and rf module is responsible for data transmission and transmission, and is divided into a terminal antenna and rf sub-module and a relay antenna and rf sub-module, where the former is responsible for signal transmission service of the ship equipment, and the latter is responsible for receiving and forwarding relay cooperation signals of other ship equipment; the terminal computing module performs complex computing to process tasks unloaded by other ship equipment or the user terminal; the signal processing module comprises a terminal signal processing submodule and a relay signal processing submodule, wherein the terminal signal processing submodule is responsible for processing the signals sent by the terminal signal processing submodule, such as calculation, decoding, encoding and the like, and the relay signal processing submodule is used for performing corresponding signal processing, such as amplification, decoding and the like, on the relay signals according to a relay protocol; the control module is responsible for the operation control of the communication system; the routing module is responsible for judging, updating and routing the routing information of the data packet; the AIS or GPS positioning system module is responsible for periodically transmitting and receiving state information of corresponding ship equipment so as to assist the functions of ship equipment positioning, emergency rescue, navigation and the like.
In the shipborne communication system, an antenna is connected with a radio frequency module and a signal processing module, the signal processing module is connected with a computing module and a control module, and an AIS/GPS module is connected with a routing module and the control module. The terminal submodule and the relay submodule in the antenna and radio frequency module are mutually independent, and the terminal submodule and the relay submodule in the signal processing module are mutually independent.
In the embodiment of the application, all unmanned aerial vehicles are provided with airborne wireless communication systems, and the airborne wireless communication systems serve as the cores of relay communication to complete interconnection and intercommunication of marine wireless communication ship equipment through trajectory planning and relay communication assistance.
As shown in fig. 7, the airborne wireless communication system includes a relay antenna and radio frequency module, a relay signal processing module, a control module, a routing module, an AIS/GPS positioning module, and a trajectory planning and control module, wherein the relay antenna and radio frequency module are responsible for receiving and forwarding relay signals; the signal processing module performs signal processing such as amplification and the like on the signals according to the requirement of the relay protocol and does not have the functions of decoding and recoding; the trajectory planning and control module is responsible for planning and executing flight and control functions to the position and the trajectory of the unmanned aerial vehicle according to the land command center; the control module, the routing module and the AIS/GPS module have the same function as corresponding modules in the ship-borne communication system. The GPS positioning module is responsible for detecting the position of the unmanned aerial vehicle in real time and uploading the position to a ship control device or a shore-based base station, the control module is responsible for driving according to a set planning track, the large-scale unmanned aerial vehicle can carry an onboard camera as required to capture the action state of the ship control device on the sea surface, and a land control center is assisted to analyze and utilize the driving track of the ship on the sea surface and navigation early warning.
An embodiment of the present application further provides an electronic device, as shown in fig. 8, the electronic device may include: the system comprises a processor 1501, a communication interface 1502, a memory 1503 and a communication bus 1504, wherein the processor 1501, the communication interface 1502 and the memory 1503 complete communication with each other through the communication bus 1504.
A memory 1503 for storing a computer program;
the processor 1501 is configured to implement the steps of the above embodiments when executing the computer program stored in the memory 1503.
The communication bus mentioned in the above terminal may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the terminal and other equipment.
The Memory may include a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
In yet another embodiment provided by the present application, there is further provided a computer-readable storage medium having stored therein instructions, which when run on a computer, cause the computer to execute a method of networking a marine vessel apparatus as described in any of the above embodiments.
In a further embodiment provided by the present application, there is also provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform a method of network entry for a marine vessel installation as described in any of the above embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk), among others.
The above description is only for the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (16)
1. A network access method of marine equipment is applied to marine equipment and is characterized by comprising the following steps:
receiving a network access instruction, wherein the network access instruction is used for controlling target ship equipment to be accessed to carry out network connection;
responding to the network access instruction, and acquiring a network signal searched by the target ship equipment;
determining a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device based on the network signal, wherein the signal transmitting device comprises: a shore-based base station or a first marine vessel;
and when the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, accessing the signal transmitting equipment according to the network access operation corresponding to the signal transmitting equipment so as to establish a network communication link between the target ship equipment and the signal transmitting equipment.
2. The method of claim 1, wherein the determining, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device comprises:
determining that the signal transmitting device is a shore-based base station under the condition that the network signal is a base station network signal;
acquiring a base station network state and a base station identifier of the shore-based base station from the network signal;
and determining the base station identifier and the base station network state as the first device network access information.
3. The method of claim 2, wherein, when the first device network access information is used to indicate that the signal transmitting device is currently accessible, accessing the signal transmitting device according to a network access operation corresponding to the signal transmitting device comprises:
and under the condition that the base station network state is used for indicating that the shore-based base station is accessible currently, accessing the shore-based base station by using a single-hop mode to establish a network communication link between the target ship equipment and the shore-based base station.
4. The method of claim 3, wherein after controlling the target vessel device to access the signal transmitting device in the single-hop manner, the method further comprises:
generating a target access state and a target relay state of the target ship equipment, wherein the target access state is used for representing the connection state of the ship equipment and a shore-based base station, and the target relay state is used for representing the network load state of the ship equipment;
and writing the target access state and the target relay state into a ship network signal, and sending the ship network signal so that ship equipment which receives the ship network signal and does not access the network executes network access operation according to the ship network signal.
5. The method of claim 1, wherein the determining, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device comprises:
determining that the signal transmitting equipment is first ship equipment under the condition that the network signal is a ship network signal;
acquiring a first equipment identifier, a first access state and a first relay state of the first ship equipment from the ship network signal;
and determining the first ship identifier, the first access state and the first relay state as the first equipment network access information.
6. The method of claim 5, wherein, when the first device network access information is used to indicate that the signal transmitting device is currently accessible, accessing the signal transmitting device according to a network access operation corresponding to the signal transmitting device comprises:
under the condition that the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, accessing the first ship equipment, and establishing a network communication link between the target ship equipment and a shore-based base station through the first ship equipment;
wherein the first device network access information indicating that the signal transmitting device is currently accessible comprises: the first access state is used for indicating that the first ship equipment is directly connected with a shore-based base station currently, and the first relay state is used for indicating that the network load of the first ship equipment is in a balanced state.
7. The method of claim 6, wherein after controlling the target marine device to access the first marine device using a multi-hop approach, the method further comprises:
and sending a network access result to the first ship equipment so that the first ship equipment updates the first relay state according to the network access result.
8. The method of claim 5, wherein in the case that the target ship device searches for a plurality of network signals, the determining that the signal transmitting device is a first ship device which is already networked comprises:
acquiring the signal-to-noise ratio of each ship network signal;
and determining the first ship network signal with the maximum signal-to-noise ratio, and determining the ship equipment corresponding to the first ship network signal as the first ship equipment.
9. The method of claim 8, wherein in case that the device network entry information indicates that the signal transmitting device is currently inaccessible, the method further comprises:
acquiring a second ship network signal with the maximum signal-to-noise ratio except the first ship network signal, and determining second ship equipment corresponding to the second ship network signal;
and controlling the target ship equipment to be connected into the second ship equipment.
10. The method of claim 1, wherein in the event that a network signal searched for by the target vessel device is not acquired, the method further comprises:
monitoring displacement information generated by the target ship equipment;
receiving and transmitting ship network signals according to a preset period under the condition that the target ship equipment is determined to move according to the displacement information;
acquiring neighbor ship equipment of the target ship equipment and second equipment network access information of the neighbor ship equipment according to the ship network signal, wherein the second equipment network access information comprises a second access state and/or a second relay state corresponding to the neighbor ship equipment;
and executing network access operation according to the network access information of the second equipment.
11. The method of claim 10, wherein the performing the network entry operation according to the network entry information of the second device comprises:
generating a network access request according to the network access information of the second equipment and the target ship identification of the target ship equipment under the condition that the second access state is used for indicating that the neighbor ship equipment is in the distributed cluster;
sending a network access request to the neighbor ship equipment so that the neighbor ship equipment sends the network access request to the distributed cluster, and authenticating the network access request through other ship equipment in the distributed cluster;
receiving an authentication result fed back by the neighbor ship equipment;
and accessing the neighbor ship equipment and joining the distributed cluster through the neighbor ship equipment under the condition that the authentication result is used for indicating that all ship equipment in the distributed cluster passes the authentication of the network access request.
12. The method of claim 10, wherein the performing the network entry operation according to the network entry information of the second device comprises:
sending networking request information to the neighbor ship equipment under the condition that the second access state is used for indicating that the neighbor ship equipment is not in the distributed cluster, wherein the networking request information is used for establishing the distributed cluster of the target ship equipment and the neighbor ship equipment;
receiving networking response information fed back by the neighbor ship equipment;
and establishing a distributed cluster corresponding to the target ship equipment and the neighbor ship equipment based on the networking response information, wherein any ship equipment in the distributed cluster is communicated with the ship equipment which is accessed to the network through an unmanned aerial vehicle.
13. A net-entering device of marine vessel equipment, comprising:
the system comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for receiving a network access instruction, and the network access instruction is used for controlling target ship equipment to be accessed to a network to carry out network connection;
the acquisition module is used for responding to the network access instruction and acquiring the network signal searched by the target ship equipment;
a determining module, configured to determine, based on the network signal, a signal transmitting device corresponding to the network signal and first device network access information of the signal transmitting device, where the signal transmitting device includes: a shore-based base station or a first marine vessel;
and the processing module is used for accessing the signal transmitting equipment according to the network access operation corresponding to the signal transmitting equipment under the condition that the first equipment network access information is used for indicating that the signal transmitting equipment is accessible currently, so as to establish a network communication link between the target ship equipment and the signal transmitting equipment.
14. A network entry system for marine vessel equipment, comprising: the system comprises signal transmitting equipment and target ship equipment to be networked;
the signal transmitting equipment is used for transmitting network signals;
the target vessel arrangement for performing the method steps of any one of claims 1-12.
15. A storage medium, characterized in that the storage medium comprises a stored program, wherein the program is operative to perform the method steps of any of the preceding claims 1 to 12.
16. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus; wherein:
a memory for storing a computer program;
a processor for performing the method steps of any of claims 1-12 by executing a program stored on a memory.
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