Underwater assembly type marine environment real-time monitoring system based on jacket

Abstract

The invention relates to an underwater assembly type marine environment real-time monitoring system based on a jacket, which comprises a water surface platform comprehensive control center, a water surface platform comprehensive control center, a water surface platform comprehensive control center and a water surface platform comprehensive control center, the control module is used for realizing power supply, data transmission, data reading and storage of the seabed comprehensive observation platform, and comprehensive control and bidirectional interaction of sampling frequency and working state of observation equipment; and the seabed comprehensive observation platform is arranged at the seabed position of the sea area around the offshore oil platform, is used for continuously acquiring the ocean observation data for a long time and transmitting the ocean observation data back to the water surface platform comprehensive control center in real time, and is controlled by the water surface platform comprehensive control center at the same time. The method can be widely applied to the field of offshore oil and gas resource development platform operation information guarantee.

Description

Technical Field

[0001] The present invention belongs to the field of information assurance for offshore oil and gas resource development platform operations, and in particular relates to an underwater assembled marine environment real-time monitoring system based on a jacket. Background Art

[0002] The development of offshore oil and gas resources is a crucial component of global energy supply. As global onshore oil and gas resources gradually deplete, their development is becoming increasingly crucial. Globally, offshore oil and gas resources are abundant, particularly in continental shelves, deep sea basins, and deepwater areas. It is estimated that approximately 30% of the world's oil and gas resources are located in the ocean. With technological advances, offshore oil and gas production is gradually expanding into deep and ultra-deep waters. At the same time, the impact of the ocean's dynamic environment on oil and gas development platforms has become a crucial factor in offshore oil and gas development.

[0003] As the scale of offshore oil and gas resource development continues to expand, ensuring the accuracy, timeliness, and scientific nature of marine environmental information has become increasingly important. Currently, real-time marine environmental information during offshore oil and gas extraction is limited. Marine environmental observations are primarily conducted through the deployment of moored buoys and submerged buoys in the surrounding waters. However, moored buoys must be deployed in remote areas, out of the reach of oil and gas facilities and vessel operations. Data transmission relies on ocean satellites, which have limited bandwidth and cannot rapidly transmit large amounts of data, resulting in low timeliness of observation information. Moored submerged buoys, deployed below the sea surface, can acquire long-term, continuous observation data from fixed observation points based on observation needs. This data is typically stored in the observation equipment and retrieved and analyzed after the buoy is recovered. With the advancement of submerged buoy technology, real-time transmission of buoy observation data can also be achieved through surface communication buoys. However, this data transmission method, similar to that of moored buoys, is also limited by the availability of surface communication buoys and data transmission efficiency, making it unable to meet the demand for timely, long-term, and continuous marine environmental information during offshore oil and gas resource development.

[0004] In addition, the operating mode and working time of the observation equipment are limited by the battery power. In order to obtain long-term continuous observation data, on the basis of meeting basic observation needs, the time interval between each sampling is generally increased, and a low-power working mode is adopted. The observation efficiency of the observation equipment is not fully utilized. Summary of the Invention

[0005] In response to the above problems, the purpose of the present invention is to provide an underwater assembled marine environment real-time monitoring system based on a jacket. The system is built on the basis of offshore oil and gas facilities, and can realize cable power supply for underwater observation equipment and cable data transmission for data acquired by observation equipment, providing real-time observation data for marine environmental information security during the development of marine oil and gas resources.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An underwater assembled marine environment real-time monitoring system based on a jacket comprises: The surface platform integrated control center is located in the offshore oil and gas resource development facility and is used to realize the integrated control and two-way interaction of power supply, data transmission, data reading and storage, sampling frequency of observation equipment, and working status of the submarine integrated observation platform; The seabed integrated observation platform is arranged on the seabed in the sea area around the offshore oil platform. It is used to obtain long-term continuous ocean observation data and transmit the ocean observation data back to the surface platform integrated control center in real time. At the same time, it is controlled by the surface platform integrated control center.

[0007] Furthermore, the surface platform integrated control center includes a central control industrial computer, a deck-sea cable remote power supply and cable data transmission unit, a deck-hydroacoustic communication remote power supply and data transmission control unit, a hydroacoustic communication host and a UPS uninterruptible power supply module; The central control industrial computer is used to realize remote power supply of the submarine integrated observation platform, data transmission through cable communication and underwater acoustic communication, issuance of control commands for changing the sampling frequency of the submarine observation equipment, and two-way interaction, and at the same time transmit the observation data obtained from the submarine integrated observation platform back to the shore-based center through a dedicated line; The deck-sea cable remote power supply and cable data transmission unit is used to provide cable remote power supply and cable data transmission for the seabed integrated observation platform using the UPS uninterruptible power supply module according to the control instructions of the central control industrial computer; The deck-hydroacoustic communication remote power supply and data transmission control unit is used to provide hydroacoustic communication data transmission for the seabed integrated observation platform through the hydroacoustic communication host installed on the jacket according to the control instructions of the central control industrial computer.

[0008] Furthermore, the UPS uninterruptible power supply module includes a first UPS uninterruptible power supply and a second UPS uninterruptible power supply; The first UPS and the second UPS are both connected to the 220VAC / 3000W power supply of the jacket platform; The output of the first UPS uninterruptible power supply is respectively connected to the central control industrial computer and the deck-sea cable remote power supply and cable data transmission unit; the output of the second UPS uninterruptible power supply is connected to the deck-underwater acoustic communication remote power supply and data transmission control unit.

[0009] Furthermore, the deck-sea cabled remote power supply and cabled data transmission unit includes a first cabled EDSL communication module, a serial port server and a first 300VDC high-voltage direct current power supply module; The first 300VDC high-voltage direct current power supply module is used to convert the input 220VAC voltage into 300VDC and then provide cable power supply to the seabed integrated observation platform through an underwater cable; The serial port server is connected to the central control industrial computer through the Ethernet port, and is connected to the deck-underwater acoustic communication remote power supply and data transmission control unit through the RS232 serial port, thereby realizing data interaction between the central control industrial computer and the deck-underwater acoustic communication remote power supply and data transmission control unit, and at the same time, data is transmitted with the seabed integrated observation platform through the first cable EDSL communication module.

[0010] Furthermore, the deck-to-hydroacoustic communication remote power supply and data transmission control unit includes a DC regulated power supply conversion module and an ultra-low power consumption embedded control module; The DC regulated power supply conversion module is used to convert the 220VAC voltage into 24VDC to power the ultra-low power embedded control module and the acoustic communication host; The ultra-low power embedded control module is used to power the Tiantong communication terminal and perform underwater acoustic communication data transmission with the seabed integrated observation platform through the acoustic communication host.

[0011] Furthermore, the submarine integrated observation platform includes a main frame installed on the seabed of the sea area surrounding the offshore oil platform through a ballast anchor, and a numerical control cabin, observation equipment, underwater acoustic communication slave, power supply and data transmission cabin, underwater large-capacity rechargeable battery cabin, and underwater cables installed inside the main frame; The CNC cabin is used to receive and respond to relevant control instructions issued by the surface platform control center, and automatically or manually switch the power supply and data transmission mode according to the connection status of the underwater cable; The power supply and data transmission cabin is used to continuously monitor the power input status of the underwater cable and simultaneously charge the lithium battery provided in the underwater large-capacity rechargeable battery cabin; The observation equipment is used to continuously acquire ocean observation data over a long period of time, and transmit the ocean observation data back to the surface platform integrated control center in real time via underwater cables or underwater acoustic communication slaves according to the current data transmission mode; The underwater large-capacity rechargeable battery compartment is used to provide local power supply for the seabed integrated observation platform via lithium batteries.

[0012] Furthermore, the CNC cabin includes a remote power supply and communication module pressure cabin and a data acquisition and main control pressure cabin; The remote power supply and communication module pressure-resistant cabin is equipped with a second 300VDC high-voltage DC power supply module, a second cable EDSL communication module, a network port to RS232 module, first to third DC / DC power conversion modules, a battery charging circuit, and a cable power supply / battery power supply automatic switching circuit module; The second 300VDC high-voltage direct current power supply module and the second cable EDSL communication module are respectively electrically connected and transmit data to the surface platform integrated control center through underwater cables; The first DC / DC power conversion module is used to convert the 300V voltage into 24V to power the second EDSL communication module and the network port to RS232 module; The second DC / DC power conversion module is used to convert the 300V voltage into 58V and then supply power to the underwater large-capacity rechargeable battery compartment through the battery charging circuit; The third DC / DC power conversion module is used to convert the 300V voltage into 58V, and then supply power to the data acquisition and main control pressure cabin through the cable power supply / battery power supply automatic switching circuit module; The data acquisition and main control pressure cabin is provided with a data acquisition and main control MCU board and a DC / DC power conversion board power supply output switch control module; The DC / DC power conversion board power supply output switch control module is powered by a third DC / DC power conversion module in the remote power supply and communication module pressure-resistant cabin, and the DC / DC power conversion board power supply output switch control module outputs corresponding voltage levels to the data acquisition and main control MCU board, the acoustic communication machine slave and the observation equipment respectively; The data acquisition and main control MCU board is connected to the network port to RS232 module through the RS232 interface, and is also connected to the acoustic communication machine slave and the observation equipment. It is used to receive and respond to relevant control instructions issued by the surface platform control center, and automatically or manually switch the power supply and data transmission mode according to the underwater cable connection status.

[0013] Furthermore, at least two rechargeable lithium batteries are provided in the underwater large-capacity rechargeable battery compartment.

[0014] Furthermore, the observation equipment includes SBE37SM CTD, 1200kHz ADCP and 75kHz ADCP.

[0015] Furthermore, the power supply and data transmission cabin is provided with a cable connection status detection module, a power supply voltage detection module, an automatic switching module and a feedback module; The cable connection status detection module is used to automatically detect the cable connection status and input power supply voltage status in real time after the submarine integrated observation platform is deployed, and send the detection results to the automatic switching module; The automatic switching module is used to switch the submarine integrated observation platform to the deck remote high-voltage DC power supply mode based on the cable connection when the cable connection is normal and the power supply voltage measurement is normal; otherwise, it switches to the self-contained underwater battery compartment power supply mode based on the cable-free connection; The feedback module is used to upload its own power supply mode and system status information to the surface platform integrated control center for real-time feedback using cable communication or underwater acoustic communication under different power supply modes.

[0016] The present invention has the following advantages due to the adoption of the above technical solution: 1. The present invention deploys an observation system on the seabed of a marine oil and gas resource development operation area based on a jacket, and acquires marine environmental protection information of the operation area based on marine oil and gas resource extraction facilities. This is different from observation methods such as submerged buoys and buoys, and can obtain marine environmental information of the operation area in real time; 2. The present invention places the submarine comprehensive observation platform on the seabed of the sea area surrounding the operation area, close to the marine oil and gas resource extraction facilities, to directly obtain the marine environmental information of the operation area without interfering with the extraction operations; 3. The present invention uses a jacket to power and transmit cabled data to observation equipment deployed on the seabed, freeing the observation equipment from the limitations of battery power under self-powered conditions. This ensures that the observation equipment can continue to operate under high-frequency sampling conditions. The large amount of observation data obtained is transmitted back to the surface control center via cable transmission for data storage and analysis. 4. The present invention adopts an underwater assembly system structure design, which has extremely high operability and feasibility.

[0017] Therefore, the present invention can be widely used in information assurance of offshore oil and gas resource development platform operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. Throughout the drawings, the same reference numerals are used to denote the same components. In the drawings: Figure 1 Schematic diagram of a jacket-based underwater assembled marine environment real-time monitoring system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of electrical connections of a deck central control unit provided in an embodiment of the present invention; Figure 3 This is an electrical wiring diagram of the deck central control unit provided in an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the submarine integrated observation platform provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of electrical connections for the integrated submarine observation platform provided in an embodiment of the present invention; The reference numerals in the figures are as follows: 1. Surface platform integrated control center; 2. Seabed integrated observation platform; 3. Underwater acoustic communication host; 4. Underwater acoustic communication slave; 5. Underwater wet-plug connector; 6. Main frame; 7. Observation equipment; 8. Underwater cable; 9. Ballast anchor; 10. CNC cabin; 11. Underwater large-capacity rechargeable battery cabin; 12. Power supply and data transmission cabin. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] In some embodiments of the present invention, an underwater assembled marine environment real-time monitoring system based on a jacket is provided. The system is divided into two parts, an above-water part and an underwater part. The above-water part supplies power to the underwater part, sends control instructions, acquires and stores data, and further distributes data. The underwater part is arranged on the seabed to acquire observation data, and the observation data is transmitted back to the above-water part in real time. The two parts are connected by a cable through underwater wet-plug connectors and underwater operations. The present invention uses oil and gas facilities to power the real-time marine environment monitoring system and transmit data by cable. It has the characteristics of high data sampling frequency and fast data transmission. It is different from the existing data acquisition methods in the existing marine oil and gas resource development process and has obvious advantages in real-time marine information security.

[0022] Example 1 like Figure 1 As shown, the present invention provides an underwater assembled marine environment real-time monitoring system based on a jacket, which includes: The surface platform integrated control center is located in the offshore oil and gas resource development facility and is used to realize basic functions such as power supply, data transmission, data reading and storage, integrated control of observation equipment sampling frequency, working status, and two-way interaction for the submarine integrated observation platform; The seabed integrated observation platform is arranged on the seabed in the sea area around the offshore oil platform. It is used to obtain long-term continuous ocean observation data and transmit the ocean observation data back to the surface platform integrated control center in real time. At the same time, it is controlled by the surface platform integrated control center.

[0023] Further, if Figure 2 、 Figure 3 As shown, the surface platform integrated control center includes a central control industrial computer, a deck-sea cable remote power supply and cable data transmission unit, a deck-hydroacoustic communication remote power supply and data transmission control unit, a hydroacoustic communication host and a UPS uninterruptible power supply module.

[0024] Among them, the central control industrial computer is equipped with real-time data display and transmission control software, large-capacity data storage hard disk, etc., which are used to realize the control command issuance and two-way interaction of remote power supply, cable communication and underwater acoustic communication data transmission, and change of sampling frequency of underwater observation equipment for the seabed integrated observation platform. At the same time, the observation data obtained from the seabed integrated observation platform is transmitted back to the shore-based center through a dedicated line; the deck-seabed cabled remote power supply and cabled data transmission unit is used to provide cabled remote power supply and cabled data transmission for the seabed integrated observation platform according to the control instructions of the central control industrial computer using the UPS uninterruptible power supply module; the deck-underwater acoustic communication remote power supply and data transmission control unit is used to provide underwater acoustic communication data transmission for the seabed integrated observation platform through the underwater acoustic communication host installed on the conductor frame according to the control instructions of the central control industrial computer.

[0025] Furthermore, the surface platform integrated control center adopts a dual power supply design, that is, the UPS uninterruptible power supply module uses the 220VAC / 3000W power supply of the jacket platform and is divided into two 3KVA UPS uninterruptible power supplies.

[0026] The first UPS is connected to the central control computer and the deck-to-submarine cabled remote power supply and data transmission unit. The deck-to-submarine cabled remote power supply and data transmission unit includes a first cabled EDSL communication module, a serial port server, and a first 300VDC high-voltage DC power supply module. The first 300VDC high-voltage DC power supply module converts the incoming 220VAC voltage to 300VDC and then provides cabled power to the submarine integrated observation platform via an underwater cable. The serial port server is connected to the central control computer via an Ethernet port and to the ultra-low-power embedded control module in the deck-to-submarine acoustic communication remote power supply and data transmission control unit via an RS232 serial port, enabling data exchange between the central control computer and the ultra-low-power embedded control module. Data is also transmitted to the submarine integrated observation platform via the first cabled EDSL communication module.

[0027] The second UPS uninterruptible power supply is connected to the deck-underwater acoustic communication remote power supply and data transmission control unit, which includes a DC regulated power supply conversion module and an ultra-low power embedded control module. The DC regulated power supply conversion module is used to convert the 220VAC voltage into 24VDC to power the ultra-low power embedded control module and the acoustic communication host; the ultra-low power embedded control module is used to power the Tiantong communication terminal and transmit underwater acoustic communication data with the seabed integrated observation platform through the acoustic communication host.

[0028] In this embodiment, the working principle of the two-way UPS uninterruptible power supply is as follows: When the jacket platform's 220VAC power supply is functioning normally and the cable connection is successful, the first UPS enters a charging state and remotely powers the submarine integrated observation platform via a 300VDC high-voltage DC power supply. Cable transmission communications are also enabled, allowing equipment connected to the first UPS to continue operating normally. In the event of a 220VAC power outage (such as during a typhoon), the first UPS can continue to power these devices for at least six hours. Once the first UPS's power is depleted, the equipment automatically shuts down until external power is restored.

[0029] When the 220VAC power supply of the jacket platform is normal, some equipment connected to the second UPS will continue to work, and the second UPS is in a power storage state. When the 220VAC power supply of the jacket platform is cut off (such as when a typhoon comes), the second UPS can still maintain power supply for these equipment for no less than 15 days. When the power of the second UPS is consumed, these equipment will automatically shut down until the next external power supply is restored.

[0030] It can be seen that the dual-power supply design adopted by the UPS uninterruptible power supply in this embodiment can ensure that when the 220VAC external power supply of the jacket platform is shut down due to the arrival of a typhoon, its UPS can still ensure the normal operation of the ultra-low power control module, underwater acoustic communication host, Tiantong communication terminal, etc. of the central control unit for more than 15 days, and carry out acoustic communication data transmission for the seabed integrated observation platform and satellite communication data transmission with the shore-based center. This ensures that the data collection and data communication link between the seabed, platform, and shore are not affected by extreme weather, and can adaptively recover when the jacket platform resumes power supply after the extreme weather ends.

[0031] Further, if Figure 4As shown, the submarine integrated observation platform includes a main frame installed on the seabed in the waters surrounding the offshore oil platform via a ballast anchor, and internally located within the main frame are a numerical control cabin, observation equipment, a submersible acoustic communication slave, a power supply and data transmission cabin, an underwater large-capacity rechargeable battery cabin, and underwater cables. The numerical control cabin is used to receive and respond to relevant control commands issued by the surface platform control center, and automatically or manually switch the power supply and data transmission mode based on the underwater cable connection status. The power supply and data transmission cabin is used to continuously monitor the power input status of the underwater cable and simultaneously charge the lithium battery installed in the underwater large-capacity rechargeable battery cabin. The observation equipment is used to continuously acquire ocean observation data over a long period of time and transmit this ocean observation data back to the surface platform integrated control center in real time via the underwater cable or the submersible acoustic communication slave according to the current data transmission mode. The underwater large-capacity rechargeable battery cabin is used to locally power the submarine integrated observation platform using lithium batteries.

[0032] Furthermore, at least two rechargeable lithium batteries are provided in the underwater large-capacity rechargeable battery compartment.

[0033] Further, if Figure 5 As shown, the CNC cabin includes a remote power supply and communication module pressure cabin and a data acquisition and main control pressure cabin.

[0034] Specifically, the remote power supply and communication module pressure-resistant cabin is equipped with a second 300VDC high-voltage DC power supply module, a second cabled EDSL communication module, a network port to RS232 module, first to third DC / DC power conversion modules, a battery charging circuit, and a cabled power supply / battery power automatic switching circuit module. The second 300VDC high-voltage DC power supply module and the second cabled EDSL communication module are electrically connected and transmit data to the surface platform integrated control center via underwater wet-plug cables. The first DC / DC power conversion module converts 300V voltage to 24V to power the second EDSL communication module and the network port to RS232 module. The second DC / DC power conversion module converts 300V voltage to 58V to power the underwater large-capacity rechargeable battery compartment via the battery charging circuit. The third DC / DC power conversion module converts 300V voltage to 58V to power the data acquisition and main control pressure-resistant cabin via the cabled power supply / battery power automatic switching circuit module.

[0035] The data acquisition and main control pressure chamber houses a data acquisition and main control MCU board and a DC / DC power converter board power output switch control module. This DC / DC power converter board's power output switch control module is powered by a third DC / DC power converter module housed in the remote power supply and communication module's pressure chamber. The DC / DC power converter board's power output switch control module outputs corresponding voltage levels (48VDC / 24VDC / 12VDC / 5VDC) to the data acquisition and main control MCU board, the acoustic communication slave device, and the observation equipment. The data acquisition and main control MCU board is connected to the network port to RS232 module via an RS232 interface, as well as to the acoustic communication slave device and the observation equipment. It receives and responds to control commands from the surface platform control center and automatically or manually switches power supply and data transmission modes based on the underwater cable connection status.

[0036] Furthermore, the observation equipment includes SBE37SM CTD, 1200kHz ADCP and 75kHz ADCP.

[0037] Furthermore, the power supply and data transmission cabin is equipped with a cable connection status detection module, a power supply voltage detection module, an automatic switching module, and a feedback module. The cable connection status detection module is used to automatically detect the cable connection status and input power supply voltage (300VDC) in real time after the submarine integrated observation platform is deployed, and send the detection results to the automatic switching module. The automatic switching module is used to switch the submarine integrated observation platform to the deck remote high-voltage DC power supply mode based on the cable connection when the cable connection and power supply voltage measurement are normal, otherwise it switches to the self-contained underwater battery compartment power supply mode based on the cableless connection. The feedback module is used to upload its own power supply mode and system status information (including battery voltage / power, etc.) to the surface platform integrated control center for real-time feedback using cable communication or underwater acoustic communication in different power supply modes.

[0038] Specifically, when the seabed integrated observation platform adopts the deck remote high-voltage DC power supply mode based on cable connection, the internal DC / DC power conversion module (300VDC to 48VDC / 24VDC / 12VDC / 5VDC) is started to power the entire system of the seabed integrated observation platform and all observation equipment, and the two underwater built-in battery compartments are switched to charging / full-charge standby state; when the seabed integrated observation platform adopts the built-in underwater battery compartment power supply mode based on cable-free connection, the CNC cabin, observation equipment, underwater acoustic communication slave machine, etc. of the seabed integrated observation platform are all powered by the underwater large-capacity rechargeable battery compartment, and the observation equipment is powered by the built-in battery.

[0039] When in use, an underwater manned submersible or underwater ROV is used to carry out cable-connected underwater operations to achieve a cable connection between the surface integrated observation control center and the seabed integrated observation platform. Specifically, the following steps are included: (1) The underwater manned submersible or underwater ROV releases the underwater cable in an orderly manner from the seabed integrated observation platform, and pulls the underwater wet-plug connector plug at the other end of the underwater cable. The underwater cable is laid out to the jacket of the marine oil and gas resource development facility; (2) Utilize the auxiliary mechanism reserved at the socket end of the underwater wet-plug connector on the conductor frame to achieve the connection between the underwater wet-plug connector plug and the socket, and complete the cable transmission and cable power supply.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A jacket-based underwater assembled marine environment real-time monitoring system, characterized in that: include: The surface platform integrated control center is located in the offshore oil and gas resource development facility and is used to realize the integrated control and two-way interaction of power supply, data transmission, data reading and storage, sampling frequency of observation equipment, and working status of the submarine integrated observation platform; The seabed integrated observation platform is arranged on the seabed in the sea area around the offshore oil platform. It is used to obtain long-term continuous ocean observation data and transmit the ocean observation data back to the surface platform integrated control center in real time. At the same time, it is controlled by the surface platform integrated control center.

2. The underwater assembled marine environment real-time monitoring system based on a jacket as claimed in claim 1, characterized in that: The surface platform integrated control center includes a central control industrial computer, a deck-sea cable remote power supply and cable data transmission unit, a deck-hydroacoustic communication remote power supply and data transmission control unit, a hydroacoustic communication host and a UPS uninterruptible power supply module; The central control industrial computer is used to realize remote power supply of the submarine integrated observation platform, data transmission through cable communication and underwater acoustic communication, issuance of control commands for changing the sampling frequency of the submarine observation equipment, and two-way interaction, and at the same time transmit the observation data obtained from the submarine integrated observation platform back to the shore-based center through a dedicated line; The deck-sea cable remote power supply and cable data transmission unit is used to provide cable remote power supply and cable data transmission for the seabed integrated observation platform using the UPS uninterruptible power supply module according to the control instructions of the central control industrial computer; The deck-hydroacoustic communication remote power supply and data transmission control unit is used to provide hydroacoustic communication data transmission for the seabed integrated observation platform through the hydroacoustic communication host installed on the jacket according to the control instructions of the central control industrial computer.

3. The underwater assembled marine environment real-time monitoring system based on a jacket as claimed in claim 2, characterized in that: The UPS uninterruptible power supply module includes a first UPS uninterruptible power supply and a second UPS uninterruptible power supply; The first UPS and the second UPS are both connected to the 220VAC / 3000W power supply of the jacket platform; The output of the first UPS uninterruptible power supply is respectively connected to the central control industrial computer and the deck-sea cable remote power supply and cable data transmission unit; the output of the second UPS uninterruptible power supply is connected to the deck-underwater acoustic communication remote power supply and data transmission control unit.

4. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 3, characterized in that: The deck-sea cable remote power supply and cable data transmission unit includes a first cable EDSL communication module, a serial port server and a first 300VDC high-voltage direct current power supply module; The first 300VDC high-voltage direct current power supply module is used to convert the input 220VAC voltage into 300VDC and then provide cable power supply to the seabed integrated observation platform through an underwater cable; The serial port server is connected to the central control industrial computer through the Ethernet port, and is connected to the deck-underwater acoustic communication remote power supply and data transmission control unit through the RS232 serial port, thereby realizing data interaction between the central control industrial computer and the deck-underwater acoustic communication remote power supply and data transmission control unit, and at the same time, data is transmitted with the seabed integrated observation platform through the first cable EDSL communication module.

5. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 3, characterized in that: The deck-to-hydroacoustic communication remote power supply and data transmission control unit includes a DC regulated power supply conversion module and an ultra-low power embedded control module; The DC regulated power supply conversion module is used to convert the 220VAC voltage into 24VDC to power the ultra-low power embedded control module and the acoustic communication host; The ultra-low power embedded control module is used to power the Tiantong communication terminal and perform underwater acoustic communication data transmission with the seabed integrated observation platform through the acoustic communication host.

6. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 1, characterized in that: The submarine integrated observation platform comprises a main frame installed on the seabed of the sea area surrounding the offshore oil platform through a ballast anchor, and a numerical control cabin, observation equipment, underwater acoustic communication slave, power supply and data transmission cabin, underwater large-capacity rechargeable battery cabin, and underwater cables installed inside the main frame; The CNC cabin is used to receive and respond to relevant control instructions issued by the surface platform control center, and automatically or manually switch the power supply and data transmission mode according to the connection status of the underwater cable; The power supply and data transmission cabin is used to continuously monitor the power input status of the underwater cable and simultaneously charge the lithium battery provided in the underwater large-capacity rechargeable battery cabin; The observation equipment is used to continuously acquire ocean observation data over a long period of time, and transmit the ocean observation data back to the surface platform integrated control center in real time via underwater cables or underwater acoustic communication slaves according to the current data transmission mode; The underwater large-capacity rechargeable battery compartment is used to provide local power supply for the seabed integrated observation platform via lithium batteries.

7. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 6, characterized in that: The CNC cabin includes a remote power supply and communication module pressure cabin and a data acquisition and main control pressure cabin; The remote power supply and communication module pressure-resistant cabin is equipped with a second 300VDC high-voltage DC power supply module, a second cable EDSL communication module, a network port to RS232 module, first to third DC / DC power conversion modules, a battery charging circuit, and a cable power supply / battery power supply automatic switching circuit module; The second 300VDC high-voltage direct current power supply module and the second cable EDSL communication module are respectively electrically connected and transmit data to the surface platform integrated control center through underwater cables; The first DC / DC power conversion module is used to convert the 300V voltage into 24V to power the second EDSL communication module and the network port to RS232 module; The second DC / DC power conversion module is used to convert the 300V voltage into 58V and then supply power to the underwater large-capacity rechargeable battery compartment through the battery charging circuit; The third DC / DC power conversion module is used to convert the 300V voltage into 58V, and then supply power to the data acquisition and main control pressure cabin through the cable power supply / battery power supply automatic switching circuit module; The data acquisition and main control pressure cabin is provided with a data acquisition and main control MCU board and a DC / DC power conversion board power supply output switch control module; The DC / DC power conversion board power supply output switch control module is powered by a third DC / DC power conversion module in the remote power supply and communication module pressure-resistant cabin, and the DC / DC power conversion board power supply output switch control module outputs corresponding voltage levels to the data acquisition and main control MCU board, the acoustic communication machine slave and the observation equipment respectively; The data acquisition and main control MCU board is connected to the network port to RS232 module through the RS232 interface, and is also connected to the acoustic communication machine slave and the observation equipment. It is used to receive and respond to relevant control instructions issued by the surface platform control center, and automatically or manually switch the power supply and data transmission mode according to the underwater cable connection status.

8. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 6, characterized in that: At least two rechargeable lithium batteries are arranged in the underwater large-capacity rechargeable battery compartment.

9. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 6, characterized in that: The observation equipment includes SBE37SM CTD, 1200kHz ADCP and 75kHz ADCP.

10. The jacket-based underwater assembled marine environment real-time monitoring system according to claim 6, characterized in that: The power supply and data transmission cabin is provided with a cable connection status detection module, a power supply voltage detection module, an automatic switching module and a feedback module; The cable connection status detection module is used to automatically detect the cable connection status and input power supply voltage status in real time after the submarine integrated observation platform is deployed, and send the detection results to the automatic switching module; The automatic switching module is used to switch the submarine integrated observation platform to the deck remote high-voltage DC power supply mode based on the cable connection when the cable connection is normal and the power supply voltage measurement is normal; otherwise, it switches to the self-contained underwater battery compartment power supply mode based on the cable-free connection; The feedback module is used to upload its own power supply mode and system status information to the surface platform integrated control center for real-time feedback using cable communication or underwater acoustic communication under different power supply modes.

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