Multi-source buoy adaptive communication device and method

Abstract

The invention relates to the technical field of communication buoys, in particular to a multi-source buoy adaptive communication device and method. A satellite antenna module is arranged at the front end of the multi-source buoy adaptive communication device; one end of the sliding rod is located below the satellite antenna module, the other end of the sliding rod is connected with the instrument cabin, and the sliding rod is sleeved with the front-section shell; one end of the transducer mounting rack is mounted at one end, far away from the sliding rod, of the instrument cabin, and the other end of the transducer mounting rack is connected with an acoustic transducer of the underwater acoustic communication module. Through software and hardware design, the multi-source buoy self-adaptive communication device can be compatible with two communication links of Beidou and Tiantong, fusion of multiple communication links and independent selection of the links are achieved, an intelligent retransmission mechanism is achieved through query feedback, and through the design that a sliding rod is additionally arranged on the structure, the water outlet posture of the buoy is stabilized, and the service life of the buoy is prolonged. The adaptive capacity of the buoy to complex sea conditions can be greatly improved, and the communication success rate and reliability under different sea conditions are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication buoys, and in particular to a multi-source buoy adaptive communication device and method. Background Art

[0002] The ocean occupies two-thirds of the Earth's surface, and its exploration and development are important factors in the development and security of human society. At present, underwater platforms often need to exchange real-time data and information with onshore command centers during mission execution.

[0003] For this type of cross-media information transmission, the communication buoy in the prior art uses a combination of satellite communication and hydroacoustic communication to achieve interactive communication between the underwater platform and the shore-based center.

[0004] Due to the single satellite communication link (single Beidou communication) and low fault tolerance of existing technologies, and the influence of the marine environment, the buoy communication success rate is usually not high and it is difficult to adapt to different sea conditions. How to improve the buoy communication success rate under different sea conditions has become an urgent problem to be solved. Summary of the invention

[0005] In view of the shortcomings of the prior art mentioned above, the object of the present invention is to provide a multi-source buoy adaptive communication device and method. After the buoy of the present invention is released from the water, it can adapt to changes in sea conditions and select communication links during its working process, thereby improving the communication success rate of the buoy device and its adaptability to different sea conditions.

[0006] To achieve the above objectives and other related objectives, the present invention provides a multi-source buoy adaptive communication device, comprising:

[0007] A satellite antenna module, which is arranged at the front end of the multi-source buoy adaptive communication device;

[0008] A slide bar, one end of which is connected to the satellite antenna module, and the other end of which is connected to the instrument cabin, and the slide bar is sleeved in the front section housing;

[0009] A transducer mounting frame, one end of which is mounted on an end of the instrument cabin away from the slide rod, and the other end of the transducer mounting frame is connected to the acoustic transducer of the underwater acoustic communication module;

[0010] The instrument cabin, the transducer mounting frame, and the acoustic transducer of the underwater acoustic communication module are all arranged in the tail section shell.

[0011] In one embodiment of the present invention, the instrument cabin comprises:

[0012] A depth sensor, which is sealed and installed on the instrument cabin, and is used to collect depth data during the floating process of the buoy;

[0013] A control center, which includes an integrated control panel, an underwater acoustic communication panel, and a battery pack;

[0014] An integrated control board, which is in communication connection with the depth sensor and the satellite antenna module, and is used to control the power on and off of the multi-source buoy adaptive communication device and to control the entire work process of the buoy;

[0015] An underwater acoustic communication board, which is in communication connection with the integrated control board;

[0016] The battery pack is used to power the control center, the depth sensor, the satellite antenna module and the acoustic transducer of the underwater acoustic communication module.

[0017] In one embodiment of the present invention, the hydroacoustic communication board is connected to the integrated control board via a serial communication port; the integrated control board is connected to the satellite antenna module via a serial communication port.

[0018] In one embodiment of the present invention, it further includes:

[0019] A buoyancy block separation device is installed in the tail section shell, and the buoyancy block separation device is connected to the integrated control panel through a cable. The buoyancy block separation device is used to ignite and dump the tail section shell to release the acoustic transducer of the underwater acoustic communication module when the buoy floats to the ignition depth.

[0020] In one embodiment of the present invention, the satellite antenna module includes Beidou, Tiantong satellite terminal and a satellite antenna.

[0021] In one embodiment of the present invention, the integrated control board is also used to pre-store communication link parameters, and after processing the communication link parameters, send the processed communication link parameters to the satellite antenna module.

[0022] In one embodiment of the present invention, the integrated control panel is also used to obtain the floating time and floating speed by analyzing the depth data of the buoy during the floating process.

[0023] In one embodiment of the present invention, the multi-source buoy adaptive communication device is communicatively connected to the underwater platform.

[0024] The present invention also includes a multi-source buoy adaptive communication method, comprising:

[0025] S1. Before launching the multi-source buoy adaptive communication device, it first communicates with the host computer through a serial port, writes working parameters including satellite communication link parameters to the integrated control board in advance, and the integrated control board writes the satellite communication link parameters into the satellite antenna module;

[0026] S2. After launching, the multi-source buoy adaptive communication device is powered on, and the satellite antenna module, integrated control board, and hydroacoustic communication board are self-checked, and the self-check results are stored;

[0027] S3, regularly collecting depth data of the buoy during its floating process through a depth sensor;

[0028] S4, judging whether the buoy floats up, if not, the underwater platform and the multi-source buoy adaptive communication device perform serial communication according to the communication protocol; if yes, the underwater platform releases the buoy;

[0029] S5. According to the depth data, if the depth data read continuously at a preset time interval and a preset number of times are all less than the preset ignition depth, an ignition signal is output, the explosive bolt is separated, and the tail section casing is jettisoned;

[0030] S6, driving the acoustic transducer of the underwater acoustic communication module to slide down by a sliding rod, thereby lowering the center of mass of the multi-source buoy adaptive communication device, and the buoy is out of water;

[0031] S7, after the buoy emerges from the water, a two-way communication link is established with the base station;

[0032] S8. Two-way communication is carried out between the underwater platform and the base station through the buoy relay. During the communication process, the communication link is changed or independently selected according to the signal strength. At the same time, it is intelligently determined whether to resend based on the feedback of the sending result. When the underwater sound is transmitted, a timeout time is set to give a receipt to the base station through the buoy.

[0033] In an embodiment of the present invention, the preset interval time is 100 ms, and the preset number of times is twice.

[0034] As described above, the multi-source buoy adaptive communication device and method of the present invention has the following beneficial effects:

[0035] (1) During the working process after the buoy of the multi-source buoy adaptive communication device of the present invention is released from the water, it can adapt to the changes in sea conditions and select communication links, which can improve the communication success rate of the buoy device and its adaptability to different sea conditions. Through software and hardware design, the multi-source buoy adaptive communication device can be compatible with the Beidou and Tiantong communication links, realizing the integration of multiple communication links; the algorithm is used to calculate the signal strength of each link in real time to realize the autonomous selection of the communication link; when the signal is unstable, a real-time query signal strength strategy is adopted to retransmit within a period of time; in the satellite communication process, the feedback information of the satellite antenna module is queried to make an intelligent judgment on whether retransmission is needed. The above methods can greatly improve the adaptive ability of the buoy in the face of complex sea conditions and improve the communication success rate and reliability under different sea conditions.

[0036] (2) After being released, the multi-source buoy adaptive communication device floats to the water surface under the action of its own positive buoyancy, and the buoyancy block is dropped. At the same time, the slide bar slides down, pulling down the center of mass and expanding the distance between the center of mass and the center of buoyancy. The buoy's posture out of the water can be adjusted to keep the buoy's posture stable on the water surface, which is beneficial to the buoy's adaptability to different sea conditions, thereby improving the buoy's communication success rate.

[0037] (3) The multi-source buoy adaptive communication device of the present invention can avoid long shore-based waiting time, thereby improving the efficiency of two-way communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A structural diagram of a multi-source buoy adaptive communication device provided in an embodiment of the present application.

[0039] Figure 2 A flowchart of a multi-source buoy adaptive communication method provided in an embodiment of the present application.

[0040] Figure 3 A flowchart of a link establishment mode of a multi-source buoy adaptive communication method provided in an embodiment of the present application.

[0041] Figure 4 A transparent transmission mode flow chart of a multi-source buoy adaptive communication method provided in an embodiment of the present application.

[0042] Figure 5 A communication process intelligent retransmission flow chart of a multi-source buoy adaptive communication method provided in an embodiment of the present application.

[0043] Component number description

[0044] 1 Satellite antenna module

[0045] 2 Front shell

[0046] 3 Sliders

[0047] 4 Buoyancy block separation device

[0048] 5 Instrument Cabin

[0049] 6 Depth Sensor

[0050] 7. Control Center

[0051] 8 Integrated control panel

[0052] 9 Hydroacoustic communication board

[0053] 10. Battery Pack

[0054] 11 Transducer mounting bracket

[0055] 12 Underwater acoustic communication module acoustic transducer

[0056] 13 Tail section housing DETAILED DESCRIPTION

[0057] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0058] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0059] Terms such as first or second can be used to describe various components, but these components are not limited by the above terms. The above terms are used to distinguish one component from another component, for example, without departing from the scope of the concept according to the present disclosure, a first component can be referred to as a second component, and similarly, a second component can be referred to as a first component.

[0060] In addition, "connected / coupled" means that one component is directly electrically coupled to another component or is indirectly electrically coupled through another component. The singular form may include the plural form unless explicitly stated in the sentence. In addition, "include / comprise" or "includes / comprises" used in this specification indicates that one or more components, steps, operations, and elements exist or have been added. The specific structural or functional descriptions of the examples of the implementation of the concepts disclosed in this specification are only illustrated to describe the examples of the implementation of the concepts, and the examples of the implementation of the concepts can be implemented in various forms, but these descriptions are not limited to the examples of the implementation described in this specification.

[0061] According to the concept, various modifications and changes can be applied to the examples of the embodiments, so that the examples of the embodiments will be illustrated in the drawings and described in the specification. However, the examples of the embodiments according to the concept are not limited to the specific embodiments, but include all changes, equivalents or replacements included in the spirit and technical scope of the present disclosure.

[0062] It should be understood that when an element is described as being "coupled" or "connected" to another element, the element may be directly coupled or directly connected to the other element, or may be coupled or connected to the other element through a third element. Conversely, it should be understood that when an element is referred to as being "directly coupled to" or "directly coupled to" another element, no other element is placed between them. Other expressions describing the relationship between components (i.e., "between" and "directly between" or "adjacent to" and "directly adjacent to") need to be interpreted in the same manner.

[0063] The terms used in this specification are only used to describe specific examples of the embodiments and are not intended to limit the present disclosure. If there is no clear opposite meaning in the context, the singular form may include the plural form. In this specification, it should be understood that the term "including" or "having" indicates the presence of the features, quantities, steps, operations, components, parts or combinations thereof described in the specification, but the possibility of the presence or addition of one or more other features, quantities, steps, operations, components, parts or combinations thereof cannot be precluded.

[0064] If there is no contrary definition, all terms (including technical terms or scientific terms) used herein have the same meaning as those generally understood by ordinary technicians in the field. If the terms defined in the commonly used dictionary are not clearly defined in this specification, they should be interpreted as having the same meaning as in the context of the relevant technology, and not interpreted as ideal or overly formal meanings.

[0065] Descriptions of well-known components and processing techniques may be omitted so as not to unnecessarily obscure the embodiments of the disclosure.

[0066] Throughout the specification, the same reference numerals refer to the same elements. Thus, even if a reference numeral is not mentioned or described with reference to one figure, it may be mentioned or described with reference to another figure. Furthermore, even if a reference numeral is not shown in one figure, it may be mentioned or described with reference to another figure.

[0067] In addition, the logic level of the signal may be different or opposite to the described logic level. For example, a signal described as having a logic "high" level may alternatively have a logic "low" level, and a signal described as having a logic "low" level may alternatively have a logic "high" level.

[0068] The following will describe the various embodiments of the present disclosure in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present disclosure, many technical details are provided in order to enable the reader to better understand the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present disclosure can be implemented.

[0069] In order to overcome the deficiencies in the background technology, the present invention provides a multi-source buoy adaptive communication device and method. During the working process after the buoy is released from the water, the present invention can adapt to the changes in sea conditions and select communication links to improve the communication success rate of the buoy device and its adaptability to different sea conditions.

[0070] See also Figure 1 , Figure 1 A structural diagram of a multi-source buoy adaptive communication device provided in an embodiment of the present application. The present invention provides a multi-source buoy adaptive communication device, comprising a satellite antenna module 1, a front section housing 2, a slide bar 3, an instrument cabin 5, a transducer mounting bracket 11, an acoustic transducer 12 of an underwater acoustic communication module, and a tail section housing 13, wherein the satellite antenna module 1 is arranged at the front end of the multi-source buoy adaptive communication device; one end of the slide bar 3 is connected to the satellite antenna module 1, and the other end of the slide bar 3 is connected to the instrument cabin 5, and the slide bar 3 is sleeved in the front section housing 2; one end of the transducer mounting bracket 11 is installed at an end of the instrument cabin 5 away from the slide bar 3, and the other end of the transducer mounting bracket 11 is connected to the acoustic transducer 12 of the underwater acoustic communication module; the instrument cabin 5, the transducer mounting bracket 11, and the acoustic transducer 12 of the underwater acoustic communication module are all arranged in the tail section housing 13.

[0071] In one embodiment of the present invention, the front section shell 2 is the front section buoyancy block, and the tail section shell 13 is the tail section buoyancy block. The front section shell 2 is a hollow cylinder with a slide rod 3 installed inside. The tail section shell 13 is two shells spliced ​​together, and the instrument cabin 5, the transducer mounting frame 11, and the underwater acoustic communication module sound transducer 12 are wrapped in the middle.

[0072] Specifically, the instrument cabin 5 includes a depth sensor 6, a control center 7, an integrated control board 8, a hydroacoustic communication board 9, and a battery pack 10. The depth sensor 6 is sealed and installed on the instrument cabin 5, and is used to collect depth data during the floating process of the buoy; the control center 7 includes an integrated control board 8, a hydroacoustic communication board 9, and a battery pack 10; the integrated control board 8 is communicatively connected to the satellite antenna module 1, and the integrated control board 8 is used to control the power on and off of the multi-source buoy adaptive communication device and to realize the control of the entire working process of the buoy; the hydroacoustic communication board 9 is communicatively connected to the integrated control board 8; the battery pack 10 is used to power the control center 7, the depth sensor 6, the satellite antenna module 1 and the hydroacoustic communication module acoustic transducer 12.

[0073] In one embodiment of the present invention, the instrument cabin 5 is installed at the bottom of the slide bar 3, connected to the slide bar 3, and is a sealed pressure-resistant cabin. The control center 7 is mainly composed of an integrated control board 8, a hydroacoustic communication board 9, a battery pack 10, etc. The integrated control board 8 is used to realize the control of the entire work process of the buoy, including realizing the power-on and power-off of peripherals such as the satellite antenna module 1, the hydroacoustic communication board 9, and the depth sensor 6, outputting an ignition signal to cause the explosive bolt to act to separate the buoyancy block, reading and processing the data of the satellite and hydroacoustic serial ports to realize two-way communication, etc.

[0074] In one embodiment of the present invention, the depth sensor 6 is sealed and installed on the end cover of the instrument cabin 5. The control system needs to record the depth data of the buoy during the floating process, and judge whether the buoy is accidentally floating or out of water based on it, so as to determine the ignition time. At the same time, by analyzing the depth data of the floating process, the floating time and floating speed can also be obtained.

[0075] Specifically, the hydroacoustic communication board 9 is connected to the integrated control board 8 via serial port communication; the integrated control board 8 is connected to the satellite antenna module 1 via serial port communication.

[0076] Specifically, a multi-source buoy adaptive communication device also includes a buoyancy block separation device 4, which is installed in the tail section shell 13, and the buoyancy block separation device 4 is connected to the integrated control panel 8 by a cable. The buoyancy block separation device 4 is used to ignite and dump the tail section shell 13 when the buoy floats to the ignition depth, thereby releasing the acoustic transducer 12 of the underwater acoustic communication module.

[0077] In one embodiment of the present invention, the buoyancy block separation device 4 is used to ignite the tail buoyancy block when the buoy floats up to the ignition depth, and release the acoustic transducer 12 of the hydroacoustic communication module. The ignition head of the buoyancy block separation device 4 is connected to the integrated control board 8 through a cable, and the integrated control board 8 outputs an ignition signal to control the action of the explosive bolt.

[0078] In one embodiment of the present invention, a multi-source buoy adaptive communication device is installed on an underwater platform and carried into the water by the underwater platform. After entering the water, the platform outputs an external power-on signal to the integrated control board 8 through a watertight cable to control the buoy device to power on.

[0079] In one embodiment of the present invention, the satellite antenna module 1 is composed of Beidou, Tiantong satellite terminal, satellite antenna and other parts, and is used to realize Beidou communication, Beidou positioning, and Tiantong communication functions. The satellite antenna module 1 is connected to the integrated control board 8 through a cable, and the integrated control board 8 controls the power on and off of the satellite antenna module 1, and performs serial communication with the satellite antenna module 1 according to the communication protocol. Before the buoy is launched, the communication link parameters can be pre-set into the integrated control board 8 by the host computer, and then the communication link is set for the satellite antenna module 1 after processing by the integrated control board 8. During the buoy surface communication process, the communication link of the satellite antenna module 1 can also be modified according to the actual signal strength and communication situation by issuing instructions from the shore base, thereby increasing the flexibility of link selection.

[0080] In one embodiment of the present invention, Beidou communication link, Tiantong communication link and intelligent communication link can be selected. If the intelligent communication link is selected, the signal strength of each link is calculated by real-time sampling through the algorithm, and then analyzed through the software strategy to intelligently select the most suitable communication link for the satellite antenna module 1 at present; if the signal is unstable, the real-time query signal strength is adopted to determine whether it is necessary to repeat the transmission within a period of time, and the satellite antenna module 1 is set to re-send the instruction within a period of time by setting the number of retransmissions in the instruction message to improve the communication success rate and reliability. When performing satellite communication, the satellite antenna module 1 feeds back the success or failure information to the integrated control board 8 within 60s, and the integrated control board 8 intelligently determines whether it needs to be resent by querying the transmission result to improve the efficiency and reliability of communication.

[0081] In one embodiment of the present invention, two hydroacoustic communication modules can be provided, specifically one for receiving and one for transmitting, used in pairs. One is installed on the underwater platform, namely the platform hydroacoustic communication module, and the other is installed on the multi-source buoy adaptive communication device, namely the hydroacoustic communication module.

[0082] In one embodiment of the present invention, the platform hydroacoustic communication module and the hydroacoustic communication module both adopt a split structure, that is, the transceiver and the electronic device are independent, and the hydroacoustic communication module acoustic transducer 12 is installed at the bottom of the instrument cabin 5 through the transducer mounting frame 11, and is sealed and connected to the cylinder of the instrument cabin 5 to form a sealed pressure-resistant cabin. The hydroacoustic communication board 9 is installed in the instrument cabin 5, and is connected by a watertight cable. The hydroacoustic communication board 9 is connected to the integrated control board 8 through a cable, and the integrated control board 8 outputs a voltage signal to control the power on and off of the hydroacoustic communication module, and performs serial communication with the hydroacoustic communication board 9 according to the communication protocol. After the buoy reaches the specified depth, the tail buoyancy block is ignited and dropped, and then the hydroacoustic communication module acoustic transducer 12 slides down with the slide bar 3, lowering the center of mass of the buoy device, stabilizing the buoy posture in a short time, and establishing a two-way communication link after the buoy is out of water, and the platform and the hydroacoustic communication module acoustic transducer 12 perform two-way transmission of acoustic signals, and then through the processing of the hydroacoustic communication board 9, information interaction is realized with the integrated control board 8.

[0083] See also Figure 2 Similar to the principle of a multi-source buoy adaptive communication device of the present invention, the present invention also provides a multi-source buoy adaptive communication method, comprising:

[0084] S1. Before launching the multi-source buoy adaptive communication device, it first communicates with the host computer via serial port, writes working parameters including satellite communication link into the integrated control board 8 in advance, and the integrated control board 8 writes the satellite communication link parameters into the satellite antenna module 1 at the same time;

[0085] S2. After launching, the multi-source buoy adaptive communication device is powered on, and the satellite antenna module 1, the integrated control board 8, and the hydroacoustic communication board 9 conduct self-tests and store the self-test results;

[0086] S3, regularly collecting depth data of the buoy during its floating process through the depth sensor 6;

[0087] S4, judging whether the buoy floats up, if not, the underwater platform and the multi-source buoy adaptive communication device perform serial communication according to the communication protocol; if yes, the underwater platform releases the buoy;

[0088] S5, according to the depth data, if the depth data read continuously at the preset time interval and the preset number of times are all less than the preset ignition depth, then an ignition signal is output, the explosive bolt is separated and the tail section housing 13 is jettisoned;

[0089] S6, driving the acoustic transducer 12 of the underwater acoustic communication module to slide down by the slide bar 3, pulling down the center of mass of the multi-source buoy adaptive communication device, and the buoy is out of water;

[0090] S7, after the buoy emerges from the water, a two-way communication link is established with the base station;

[0091] S8. Two-way communication is carried out between the underwater platform and the base station through the buoy relay. During the communication process, the communication link can be changed or independently selected according to the signal strength and actual conditions. At the same time, it is intelligently determined whether to resend based on the feedback of the sending result. When the underwater sound is transmitted, a timeout time is set to give a receipt to the base station through the buoy.

[0092] In one embodiment of the present invention, before the multi-source buoy adaptive communication device of the present invention is launched, the parameters are preset by the host computer in advance, and the communication link parameters are written into the satellite antenna module 1; after being powered on underwater, the integrated control board 8, the satellite antenna module 1, and the hydroacoustic communication module are self-checked, the self-check results are stored, and the depth timing sampling is turned on. If the platform does not release the buoy afterwards, the platform can communicate with the buoy in serial port according to the communication protocol to read the buoy self-check results; if the platform cuts the cable and releases the buoy, the buoy will float up under the action of its own positive buoyancy, and the depth data will be read and stored according to the depth timing sampling frequency during the floating process. If the buoy depth read twice consecutively before and after an interval of 100ms is less than the preset ignition depth, the ignition signal is output, the explosive bolt is separated, the buoyant block is thrown, and the acoustic transducer 12 of the hydroacoustic communication module slides down with the slide bar 3, pulling down the center of mass of the multi-source buoy adaptive communication device, and the buoy will be out of the water in a stable posture.

[0093] After the buoy emerges from the water, it will delay for 20 seconds to wait for the satellite to lock onto it, after which a two-way communication link will be quickly established.

[0094] See also Figure 3 , Figure 4 , Figure 5 , Figure 3 A flowchart of a link establishment mode of a multi-source buoy adaptive communication method provided in an embodiment of the present application. Figure 4 A transparent transmission mode flow chart of a multi-source buoy adaptive communication method provided in an embodiment of the present application. Figure 5 A communication process intelligent retransmission flow chart of a multi-source buoy adaptive communication method provided in an embodiment of the present application.

[0095] In the link-building mode (link-building refers to establishing a communication link between the satellite and the shore), in order to be compatible with the Tiantong communication link, the Beidou satellite communication frequency is cleverly used, and the function of adapting to both the Beidou link and the Tiantong link is achieved by adding a flag bit (link-building flag bit) and a global variable (waiting time). Figure 4The figure shows the whole working process in the link building mode. After the buoy sends the link building information through the satellite antenna module, if the sending is successful, it will wait for the shore-based reply. If the sending fails, the waiting time will be set to the default Beidou frequency, and then the frequency flag will be set (both Tiantong and Beidou links have communication frequencies. In the example, the Tiantong frequency is 15s and the Beidou frequency is 30s). The frequency timer is started. When the frequency is reached, the frequency flag is reset, and then the link building information is sent again. If the sending is successful and the shore-based receipt instruction is received within 66s, the link building flag is reset, the waiting time is set to the Beidou frequency, and then the transparent transmission process is entered; if the shore-based receipt instruction is not received within 66s, the frequency flag is reset, the waiting time is set to the Beidou frequency and the link building information is sent again, and then this process is repeated. Among them, after sending the link establishment command to the shore through the Tiantong link, it may take up to 60 seconds to receive the shore-based receipt instruction after receiving the successful transmission. This time is longer than the Beidou link. To integrate the two links, the link establishment flag can be set. After the successful transmission, when it is in the link establishment mode, the global variable waiting time can be set to 66s (an 11s timer can be set). If the link establishment receipt is not received after waiting for 66s, the link establishment information is resent. If the link establishment receipt is received within 66s, the link establishment flag is reset and the waiting time is reset to the Beidou frequency.

[0096] After the link is successfully established, the surface transparent transmission mode is entered. In the transparent transmission mode, the interactive information of the underwater platform is transmitted to the acoustic transducer 12 of the acoustic communication module through acoustic communication, and the acoustic transducer 12 of the acoustic communication module is forwarded to the integrated control board 8. After being processed by the integrated control board 8, the information is sent to the satellite antenna module 1, and then sent to the shore-based command center through the satellite antenna module 1; the interactive information of the shore-based command center is sent to the satellite antenna module 1 of the buoy, and then sent to the integrated control board 8 by the module, and then transmitted to the acoustic communication module after being processed by the integrated control board 8, and finally forwarded to the platform by the acoustic communication. At this stage, according to the signal strength and actual situation during the communication process, the base station can send a message to the buoy to set the control parameters, and change the satellite communication link of the buoy satellite antenna module 1 to adapt to changes in sea conditions.

[0097] like Figure 5As shown, during the communication process, by adding a flag bit indicating whether the transmission is successful and a flag bit indicating the reason for the transmission failure in the command message, it is intelligently determined whether the instruction needs to be resent. After the satellite antenna module 1 sends the instruction, the result message must be fed back to the integrated control board 8 within 60 seconds. First, determine whether the transmission is successful or not. If the transmission is successful, set the no frequency flag, clear the waiting data, and no longer send it repeatedly. If the transmission fails, determine the failure cause flag again. If the reason is that the frequency has not arrived, read the waiting time byte in the message again, and send it again after waiting for the corresponding time; if the reason is that there is no signal, wait for 1 second before sending it again. In both cases, if it still fails after 5 consecutive transmissions, set the no frequency flag, start the frequency timer, and resend when the frequency arrives again. If the failure reason is other reasons, set the no frequency flag, start the frequency timer, and resend when the frequency arrives again. In this way, intelligent retransmission is achieved to improve the efficiency and reliability of satellite communication.

[0098] In one embodiment of the present invention, considering the situation that the underwater platform does not reply and the success rate of the hydroacoustic communication, after receiving the downlink instruction from the shore, a timeout can be set, and the delay time can be set using the clock chip. If the receipt instruction of the platform is received before the delay, the timeout is stopped, and the receipt instruction is sent to the shore through the satellite antenna module 1; if the receipt instruction is still not received after the delay, the timeout is stopped, and the buoy sends the transparent transmission failure message to the shore through the satellite antenna module 1, and the shore decides whether to send the transparent transmission instruction again. By setting the timeout, the shore can avoid waiting too long, thereby improving the efficiency of two-way communication.

[0099] After the mission is completed, a power-off command can be issued to the buoy through the shore base to control the power off of the buoy.

[0100] In summary, during the working process after the buoy of the multi-source buoy adaptive communication device of the present invention is released from the water, it can adapt to the changes in sea conditions and select communication links, which can improve the communication success rate of the buoy device and its adaptability to different sea conditions. Through software and hardware design, the multi-source buoy adaptive communication device can be compatible with the Beidou and Tiantong communication links, realizing the integration of multiple communication links; the algorithm is used to calculate the signal strength of each link in real time to realize the autonomous selection of the communication link; when the signal is unstable, a real-time query signal strength strategy is adopted to retransmit within a period of time; during the satellite communication process, the feedback information of the satellite antenna module is queried to make an intelligent judgment on whether retransmission is required; and by adding a sliding rod design to the structure, the distance between the device's center of mass and buoyancy is increased to stabilize the buoy's posture out of the water. The above methods can greatly improve the buoy's adaptability to complex sea conditions and improve the communication success rate and reliability under different sea conditions.

[0101] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A multi-source buoy adaptive communication device, characterized in that: include: A satellite antenna module (1), which is arranged at the front end of the multi-source buoy adaptive communication device; A slide bar (3), one end of which is located below the satellite antenna module (1), the other end of which is connected to the instrument cabin (5), and the slide bar (3) is sleeved in the front section housing (2); A transducer mounting frame (11), one end of which is mounted on an end of the instrument cabin (5) away from the slide bar (3), and the other end of the transducer mounting frame (11) is connected to an underwater acoustic communication module acoustic transducer (12); The instrument cabin (5), the transducer mounting frame (11), and the underwater acoustic communication module acoustic transducer (12) are all arranged in the tail section housing (13).

2. A multi-source buoy adaptive communication device according to claim 1, characterized in that: The instrument cabin (5) comprises: A depth sensor (6) is sealed and mounted on the instrument cabin (5) and is used to collect depth data during the floating process of the buoy; A control center (7), which includes an integrated control panel (8), an underwater acoustic communication panel (9), and a battery pack (10); An integrated control board (8) is communicatively connected with the depth sensor (6) and the satellite antenna module (1), and the integrated control board (8) is used to control the power on and off of the multi-source buoy adaptive communication device and to control the entire working process of the buoy; an underwater acoustic communication board (9) which is communicatively connected to the integrated control board (8); The battery pack (10) is used to supply power to the control center (7), the depth sensor (6), the satellite antenna module (1) and the acoustic transducer (12) of the underwater acoustic communication module.

3. A multi-source buoy adaptive communication device according to claim 2, characterized in that: The hydroacoustic communication board (9) and the integrated control board (8) are connected via serial communication; the integrated control board (8) and the satellite antenna module (1) are connected via serial communication.

4. A multi-source buoy adaptive communication device according to any one of claims 1 to 3, characterized in that: Also includes: A buoyancy block separation device (4) is installed in the tail section shell (13), and the buoyancy block separation device (4) is connected to the integrated control panel (8) via a cable. The buoyancy block separation device (4) is used to ignite and jettison the tail section shell (13) and release the acoustic transducer (12) of the underwater acoustic communication module when the buoy floats to an ignition depth.

5. A multi-source buoy adaptive communication device according to claim 1, characterized in that: The satellite antenna module (1) comprises a Beidou and Tiantong satellite terminal and a satellite antenna.

6. A multi-source buoy adaptive communication device according to claim 2, characterized in that: The integrated control panel (8) is also used to pre-store communication link parameters, and after processing the communication link parameters, send the processed communication link parameters to the satellite antenna module (1).

7. A multi-source buoy adaptive communication device according to claim 2, characterized in that: The integrated control panel (8) is also used to analyze the depth data of the buoy during its floating process to obtain the floating time and floating speed.

8. A multi-source buoy adaptive communication device according to claim 1, characterized in that: The multi-source buoy adaptive communication device is communicatively connected with the underwater platform.

9. A multi-source buoy adaptive communication method, characterized in that: include: S1. Before the multi-source buoy adaptive communication device is launched, it first communicates with the host computer through a serial port, writes working parameters, including satellite communication link parameters, into the integrated control board (8) in advance, and the integrated control board (8) writes the satellite communication link parameters into the satellite antenna module (1); S2, after launching into the water, the multi-source buoy adaptive communication device is powered on, the satellite antenna module (1), the integrated control board (8), and the hydroacoustic communication board (9) perform self-tests, and the self-test results are stored; S3, regularly collecting depth data of the buoy during its floating process through a depth sensor (6); S4, judging whether the buoy floats up, if not, the underwater platform and the multi-source buoy adaptive communication device perform serial communication according to the communication protocol; if yes, the underwater platform releases the buoy; S5, according to the depth data, if the depth data read continuously at a preset time interval and a preset number of times are all less than the preset ignition depth, an ignition signal is output, the explosive bolt is separated and the tail section casing (13) is jettisoned; S6, driving the acoustic transducer (12) of the underwater acoustic communication module to slide down by means of the sliding rod (3), thereby lowering the center of mass of the multi-source buoy adaptive communication device, and the buoy emerges from the water; S7, after the buoy emerges from the water, a two-way communication link is established with the base station; S8. Two-way communication is carried out between the underwater platform and the base station through the buoy relay. During the communication process, the communication link is changed or independently selected according to the signal strength. At the same time, it is intelligently determined whether to resend based on the feedback of the sending result. When the underwater sound is transmitted, a timeout time is set to give a receipt to the base station through the buoy.

10. A multi-source buoy adaptive communication method according to claim 9, characterized in that: The preset interval time is 100ms, and the preset number of times is twice.

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