Deep sea test system

Abstract

The application provides a deep-sea test system, and belongs to the field of deep-sea test. The deep-sea test system comprises a bearing head, a main structure, a main pressure-resistant cabin, an umbilical cable and a functional assembly. The bearing head is arranged at the top end of the main structure and is connected with a carrying device. The main pressure-resistant cabin is installed at the middle position of the main structure. The functional assembly is distributed and installed on the frame of the main structure and comprises an electric control system, a compensation system, an observation system and a sensor system. One end of the umbilical cable is connected to the top end of the main structure. The other end of the umbilical cable is connected to the electric control system of the functional assembly through an umbilical cable guide groove arranged on the outer wall of the main pressure-resistant cabin. The application realizes the double improvement of structural stability and operation safety. Meanwhile, the dynamic pressure balance time is shortened, the compensation efficiency is improved, and the equipment reliability is improved.

Description

Technical Field

[0001] This invention belongs to the field of deep-sea testing, specifically, it relates to a deep-sea testing system. Background Technology

[0002] With the deepening of marine resource exploration, deep-sea scientific research, and underwater engineering operations, the development of reliable technologies and equipment capable of adapting to extreme deep-sea environments (high pressure, low temperature, corrosion, and complex biological environments) has become a global frontier issue. As the core platform for simulating, testing, and conducting deep-sea operations, the technological level of deep-sea testing systems directly affects the depth, breadth, and safety of deep-sea activities. However, existing deep-sea testing systems and equipment still face a series of technical bottlenecks that urgently need to be addressed when facing complex and ever-changing deep-sea conditions: Insufficient structural pressure resistance and adaptability: Traditional deep-sea equipment structures often use single materials or simple frame forms, which have limited stability, corrosion resistance, and mechanical adaptability to different operating conditions (such as vibrations from equipment start-up and shutdown, and impacts during deployment and retrieval) under extreme high-pressure environments. Common steel frames suffer from poor corrosion resistance and heavy weight, while simple pressure chamber designs make it difficult to flexibly integrate various external equipment, limiting the system's functional expandability and environmental applicability. In addition, low hydraulic compensation efficiency, weak comprehensive protection capabilities, and poor reliability of energy and control systems have all become technical problems restricting the long-term stable and reliable operation of the system.

[0003] Currently, the relevant existing technologies include:

[0004] Chinese patent application CN119469255A discloses a multi-parameter environmental monitoring base station for long-term operation on the seabed. This base station is deployed to the seabed via a cable from a mother ship and powered by dissolved oxygen seawater batteries. It conducts long-term in-situ monitoring of the seabed environment using onboard general-purpose and specialized instruments, receives instructions from shore-based facilities to adjust monitoring strategies, and transmits monitoring data back to a shore-based laboratory in real time. The base station includes a frame system, a monitoring system, a control system, a communication system, a power supply system, and a deployment and recovery system. The monitoring system uses general-purpose and extended specialized instruments to perform in-situ monitoring of the seabed biochemical environment and its impact on benthic organisms. The communication system serves as a signal transmission medium for parallel and uplink / downlink data transmission and command issuance, enabling networking between the base station and surrounding nodes, as well as interaction and communication between the base station and surface buoys or vessels.

[0005] The existing Chinese patent application document with publication number CN114802661A discloses a pressure-resistant chamber, an underwater mining vehicle, and an underwater mobile robot for deep-sea mobile operation equipment. By designing a pressure-resistant chamber in the deep-sea mobile operation equipment and utilizing a chamber structure controlled by an electromagnetic valve and a pressure compensator, the problem of insufficient pressure resistance of pressure-resistant components is solved, realizing lightweight and highly reliable movement of the equipment in the deep-sea environment, and reducing the difficulty and cost of procuring parts.

[0006] Chinese patent application CN113922881A discloses a fiber optic release management repeater for deep-sea equipment. The repeater frame has a load-bearing head rotatably connected to its top via a pin. Inside the repeater frame are a high-voltage transformer box, a pressure-resistant electronic compartment, and a signal junction box. A fiber optic composite armored cable is inserted into the load-bearing head, with its bottom end passing through the load-bearing head and fixedly connected to the high-voltage transformer box. The pressure-resistant electronic compartment is connected to the signal junction box via a watertight cable. Inside the repeater frame are a thruster, a jettison motor, an underwater camera, an underwater light, and a fiber optic micro-cable coil. However, this technical solution uses a centralized compensation system, where all components requiring compensation are compensated through a single large compensator. This results in interconnected internal compensation circuits for these components. When one compensation component leaks underwater, seawater leaks through the compensation system to other components, causing widespread damage to underwater equipment and significantly reducing system reliability.

[0007] Existing technologies have technical defects such as poor load support for underwater equipment, poor reliability, low compensation efficiency, and poor environmental adaptability, and there are areas that need to be improved. Summary of the Invention

[0008] In view of the deficiencies in the prior art, the purpose of this invention is to provide a deep-sea testing system.

[0009] The deep-sea testing system provided by the present invention includes: a load-bearing head, a main structure, a main pressure chamber, an umbilical cable, and functional components;

[0010] The main structure is a tower-type frame structure;

[0011] The load-bearing head is located at the top of the main structure and connected to the transport equipment to realize the deployment and recovery of the deep-sea test system.

[0012] The main pressure chamber is installed in the middle position inside the tower frame of the main structure;

[0013] The functional components are distributed and installed on the frame of the main structure, including: an electronic control system, a compensation system, an observation system, and a sensor system;

[0014] The electrical control system performs logical allocation of signals connected to the deep-sea test system, ensuring that the observation system and sensor system inside the main pressure chamber and functional components are independently powered and realizing power distribution, signal processing, equipment control and monitoring, and data interaction of the deep-sea test system;

[0015] The compensation system provides hydraulic pressure compensation for the deep-sea testing system;

[0016] The observation system provides illumination and underwater imaging for the deep-sea experimental system;

[0017] The sensor system provides terrain and obstacle avoidance references for the deep-sea test system through depth and distance measurements;

[0018] One end of the umbilical cable is connected to the top of the main structure, and the other end of the umbilical cable is connected to the electrical control system of the functional components through the umbilical cable guide groove set on the outer wall of the main pressure chamber.

[0019] Preferably, the electronic control system includes: an umbilical cable junction box, a power transformer, a control transformer, an underwater control compartment, and a battery box;

[0020] The umbilical cable junction box is installed on the transverse frame of the main structure. The umbilical cable junction box is an oil-filled, pressure-resistant square box structure. It provides physical isolation and logical allocation for different media in the umbilical cable connected to the junction box, ensuring that each working unit inside the functional component is independently powered and can achieve data interaction.

[0021] The power transformer and the control transformer are installed adjacent to each other on the transverse frame of the main structure, forming a distributed underwater transformer power unit.

[0022] The power transformer converts the high-voltage electrical energy input from the umbilical cable into low-voltage power for the operation of the deep-sea test system;

[0023] The control transformer converts the power supply voltage in the battery box into the voltage required by the control circuit of the electronic control system, and then provides equipment power to the observation system and sensor system through the control circuit of the electronic control system.

[0024] The underwater control cabin is mounted on the vertical frame of the main structure; it enables power distribution, signal processing, equipment control, and monitoring within the deep-sea test system.

[0025] The battery box is located at the bottom of the main structure frame. The battery box integrates a deep-sea lithium battery pack and a battery pack intelligent management system, which obtains power from the outside and outputs power to the outside.

[0026] Preferably, the compensation system includes: a plurality of compensators;

[0027] The compensators are installed adjacent to the power transformer, control transformer, umbilical cable junction box, and battery box, respectively, to provide hydraulic pressure compensation for the power transformer, control transformer, umbilical cable junction box, and battery box.

[0028] Preferably, the compensation system has a total of five compensators, two power transformers, and one control transformer.

[0029] Of the five compensators, three compensators independently compensate for the power transformer and the control transformer; the other two compensators achieve pressure compensation for the umbilical cable junction box by balancing seawater pressure and filling the internal gaps of the umbilical cable with oil.

[0030] Both the power transformer and the control transformer adopt an oil-filled compensated voltage-resistant cylindrical structure.

[0031] The underwater control cabin adopts a cylindrical pressure-resistant dry cabin structure;

[0032] The compensator is a liquid level feedback compensator, and each compensator is independently connected to the object being compensated via a hydraulic hose; each compensator integrates a liquid level feedback sensor to monitor the liquid level of the object being compensated in real time.

[0033] Preferably, the observation system includes: multiple sets of underwater lights and underwater cameras;

[0034] The underwater light provides an active light source.

[0035] The underwater camera provides real-time visual feedback through high-definition images and intelligent algorithms;

[0036] The installation positions of the underwater lights and underwater cameras are adjusted according to the lighting and underwater image coverage range. The underwater image coverage range includes: the top and upper space of the main pressure chamber inside the deep-sea test system, the umbilical cable on the umbilical cable guide groove, and the outside and lower space of the test system.

[0037] Preferably, the sensor system is located at the bottom of the main structure, and the sensor system includes: an altimeter and a depth gauge;

[0038] The altimeter achieves terrain following and obstacle avoidance by measuring the vertical distance between the deep-sea test system and the seabed or obstacles;

[0039] The depth gauge obtains the vertical depth of the deep-sea test system relative to the water surface in real time by measuring water pressure or sound wave reflection time, ensuring the test safety of the deep-sea test system.

[0040] Preferably, the main structure is a tower-shaped frame structure made of titanium alloy, and the main pressure chamber is a capsule-shaped structure made of titanium alloy.

[0041] Preferably, the bottom of the main structure is provided with a supporting base and a single-sided support system that reinforces the bottom frame of the main structure. The single-sided support system strengthens the main structure under the single-sided ground load condition of the deep-sea test system.

[0042] Preferably, there are no electrical devices within a height of 100 to 200 mm above the bottom surface of the main frame.

[0043] The bottom of the main structure is fitted with a bottom protective net;

[0044] The main structure is provided with a side protective net on its side wall; the functional components are located between the side protective net and the main pressure chamber.

[0045] Preferably, the deep-sea testing system further includes: an underwater hot standby battery pack.

[0046] The underwater hot standby battery pack includes: a hot standby battery pack control system and a water circulation pump for emergency hot standby.

[0047] The underwater hot standby battery pack is connected to the electronic control system of the functional components, serving as an emergency power source for the battery box power supply of the deep-sea test system. In the event of a battery box power failure, it provides a safe protection power source for the deep-sea test system.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. This invention adopts a titanium alloy tower-type frame main structure, which solves the problem of bearing multi-directional loads under complex sea conditions by integrating the top load-bearing head, the bottom support base and the single-sided support system, and achieves a dual improvement in structural stability and operational safety.

[0050] 2. This invention solves the bottleneck problems of response delay and insufficient compensation efficiency in traditional centralized compensation systems by constructing a distributed hydraulic compensation network for compensators, and achieves a breakthrough in shortening dynamic pressure balance time and improving compensation efficiency.

[0051] 3. By integrating a distributed underwater transformer power unit and a distributed electrical control architecture, this invention solves the reliability degradation problem caused by independent power supply of multiple systems, improves the deep-sea operation support capability of power system and communication latency, and enables the invention to operate continuously and stably under various sea conditions.

[0052] 4. This invention achieves dual protection against bio-attachment erosion and mechanical collision damage by constructing a multi-level protection system;

[0053] 5. By using a distributed compensation system combined with independently compensated transformers, umbilical cable junction boxes, and underwater hot standby battery packs, this invention provides redundancy based on monitoring and compensation, ensuring that other components can still operate independently when some components fail, thus improving the overall system reliability. Attached Figure Description

[0054] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0055] Figure 1 This is a schematic diagram of the overall structure of the deep-sea test system of the present invention;

[0056] Figure 2 This is a schematic diagram showing the structural details of the deep-sea testing system of the present invention from a frontal view.

[0057] Figure 3 This is a schematic diagram showing the structural details of the deep-sea testing system of the present invention from the reverse side.

[0058] The diagram shows:

[0059] Detailed Implementation

[0060] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0061] like Figures 1 to 3 As shown, this embodiment of the invention provides a deep-sea testing system, including: a load-bearing head 1, a main structure 2, a main pressure chamber 5, and functional components; wherein, the load-bearing head 1 is located at the top of the main structure 2 and connected to the A-frame of the transport equipment to realize the deployment and recovery of the entire deep-sea testing system; the main structure 2 is a tower-shaped frame structure made of titanium alloy, which integrates the top load-bearing head 1, the bottom support base, and the single-sided support system; it solves the problem of bearing multi-directional loads under complex sea conditions and achieves a dual improvement in structural stability and operational safety; the main pressure chamber 5 is installed inside the tower-shaped frame of the main structure 2; it is a capsule-shaped structure made of titanium alloy and is vertically arranged in the middle of the interior of the main structure 2; furthermore, the functional components installed on the frame of the main structure 2 include: an electrical control system, a compensation system, an observation system, and a sensor system; the umbilical cable extending from the top of the main structure 2 is connected to the electrical control system of the functional components through the umbilical cable guide groove 3 set on the outer wall of the main pressure chamber 5.

[0062] Furthermore, the electrical control system includes: umbilical cable junction box 14, power transformer 7, control transformer 8, underwater control compartment 15, and battery box 16;

[0063] Furthermore, the umbilical cable junction box 14 is set on the transverse frame of the main structure 2 and adopts an oil-filled, pressure-resistant square box structure. It physically isolates and logically distributes different media such as power, optical fiber communication, copper cable communication, and hydraulic fluid in the umbilical cable connected to the box 14, ensuring that the functional components such as the observation system and sensor system equipment are independently powered and can realize data interaction.

[0064] The power transformer 7 and control transformer 8 are arranged adjacent to each other on the transverse frame of the main structure 2, forming a distributed underwater transformer power unit. The power transformer 7 converts the high-voltage electrical energy input from the umbilical cable into low-voltage power required by the deep-sea test system. The control transformer 8 converts the power voltage provided by the battery box 16 into the low voltage required by the control circuit, providing power for the observation system and sensor system. Both the power transformer 7 and the control transformer 8 adopt an oil-filled, pressure-resistant cylindrical structure. The underwater control cabin 15 adopts a cylindrical pressure-resistant dry cabin structure and is located on the vertical frame of the main structure 2. The underwater electrical control cabin 15 is the core component of the deep-sea test system, responsible for power distribution and signal control. The system includes functions such as processing, equipment control, and monitoring. The battery box 16 adopts an oil-filled, pressure-resistant square box structure and is located at the bottom of the main structure 2 frame. The battery box 16 integrates a high-energy-density deep-sea lithium battery pack and an intelligent management system, enabling it to obtain power from external sources and output power. In a more specific embodiment, the power transformer 7 is a heater transformer box. This embodiment also includes an underwater hot standby battery pack, which includes: an emergency hot standby for the water circulation pump and an underwater hot standby battery pack control system connected to the electrical control system, serving as an emergency power source for the battery box 16, providing safety protection power to the equipment when all power sources in the battery box 16 fail. The power transformer 7 and control transformer 8 can be powered separately from the surface. After the control transformer 8 is powered, it can supply power to the functional components, allowing the deep-sea test system to operate. The power transformer 7 can be adjusted through the electrical control system to control the underwater load operation. Furthermore, each power transformer 7 and control transformer 8 has monitoring functions such as oil level detection, temperature detection, leakage detection, voltage and current detection, high-voltage insulation online monitoring, and an underwater camera, enabling real-time monitoring of the equipment status and health. The aforementioned power transformer 7 and control transformer 8, due to their distributed structure, possess redundancy. Extensive detection methods are employed to nip problems in the bud. These measures increase the system's reliability.

[0065] The compensation system includes multiple compensators 6, which are typically centrally located on the periphery of the middle layer of the main structure 2, and arranged close to the equipment being compensated. They provide hydraulic pressure compensation for the electrical control system. The compensators 6 primarily provide hydraulic pressure compensation for the power transformer 7, control transformer 8, umbilical cable junction box 14, and battery box 16. By addressing the issues of response delay and insufficient compensation efficiency in the compensation system, the dynamic pressure balancing time is shortened and the compensation efficiency is improved. In a more specific embodiment, an independent compensation scheme is adopted. Specifically, the compensation system is designed according to the importance and category of system components to ensure that other components can operate independently even if one compensation module malfunctions, thus improving the system's reliability. Specifically, the compensation system is equipped with five 1.7L compensators 6 with liquid level feedback. Three of these 1.7L compensators 6 independently compensate for the two power transformers 6 and one control transformer 8, while the other two 1.7L compensators 6 are used to compensate for the umbilical cable junction box 14 (for balancing seawater pressure and oil filling compensation for internal voids in the umbilical cable). Each compensator 6 is independently connected to the object being compensated via a hydraulic hose, and each compensator 6 integrates a liquid level feedback sensor, which can detect the liquid level of the object being compensated in real time, greatly improving the reliability of the compensation system.

[0066] The observation system provides illumination and underwater imaging for the deep-sea test system. Specifically, its coverage area includes the top and upper space of the main pressure chamber 5 within the test system, the umbilical cable on the umbilical cable guide groove 3, and the external and lower space of the test system, forming an omnidirectional photoelectric observation. Furthermore, the observation system includes multiple sets of underwater lights 9 and underwater cameras 10. The underwater lights 9 serve as active light sources to solve the problem of low underwater illumination. The underwater cameras 10 provide real-time visual feedback through high-definition images and intelligent algorithms. Therefore, the installation positions of the observation system components are adjusted according to the coverage area of ​​the illumination and underwater images to ensure coverage of the top and upper space of the main pressure chamber 5 within the test system, the umbilical cable on the umbilical cable guide groove 3, and the external and lower space of the test system.

[0067] The sensor system is located at the bottom of the main structure 2 and includes an altimeter 11 and a depth gauge 12. The altimeter 11 measures the vertical distance between the deep-sea test system and the seabed or obstacles to achieve terrain following and obstacle avoidance. The depth gauge 12 measures water pressure or sound wave reflection time to obtain the vertical depth of the deep-sea test system relative to the water surface in real time, ensuring the safety of the test.

[0068] Furthermore, to prevent potential collision damage during sea trials, all electrical equipment installed near the bottom of the main structure 2 is mounted at a height of at least 100 to 200 mm above the bottom of the frame, and a bottom protective net 13 is designed at the bottom of the main structure 2. At the same time, to prevent damage to the electrical equipment by deep-sea organisms, a side protective net 4 is installed on the outside of the main structure 2, and the functional components are located between the side protective net 4 and the main pressure tank 5.

[0069] More specifically, the implementation principle of this invention is as follows: Addressing the complex operating conditions required in the extreme environment of the deep sea, an integrated deep-sea test system architecture is proposed. This architecture employs a composite design of a titanium alloy tower-shaped main structure 2 and a capsule-shaped main pressure-resistant chamber 5 to achieve deep-sea pressure bearing capacity and adaptability to multiple operating conditions. Furthermore, a "distributed hydraulic compensation network" is constructed, where compensators 6 are arranged close to the compensated equipment to form a dynamic pressure balance system, solving the hydraulic compensation efficiency problem of deep-sea pressure-resistant equipment. In addition, this invention incorporates a multi-level protection system, combining a bottom protective net 3, side protective nets 4, and equipment ground clearance design, along with distributed photoelectric observation units (underwater lights 9 and underwater cameras 10), to achieve omnidirectional environmental monitoring while constructing a dual protection mechanism against biological erosion and mechanical collisions. The intelligent electronic control system integrated in this embodiment of the invention adopts a distributed underwater transformer power unit and a distributed electronic control architecture, combined with an oil-filled compensation withstand voltage tank and a battery management system, to form an integrated solution for deep-sea distributed power-communication-control. This breaks through the reliability bottleneck caused by the independent power supply of multiple systems in traditional deep-sea equipment, enabling the system to operate continuously and stably in the deep-sea environment under high sea conditions, reaching the international advanced level of deep-sea test equipment technology.

[0070] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0071] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A deep sea testing system, characterized by, The utility model relates to a deep sea test system, including: a load head (1), a main structure (2), a main pressure cabin (5), a umbilical and a functional assembly; the main structure (2) is a tower type frame structure; the load head (1) is arranged at the top of the main structure (2) and is connected with a carrying device, realizing the deployment and recovery of the deep sea test system; the main pressure cabin (5) is installed at the middle position inside the tower type frame of the main structure (2); the functional assembly is distributedly installed on the frame of the main structure (2), including: an electric control system, a compensation system, an observation system and a sensor system; the electric control system logically distributes the signal accessed to the deep sea test system, ensures that the observation system and the sensor system inside the main pressure cabin (5) and the functional assembly are independently powered and realizes the power distribution, signal processing, equipment control and monitoring and data interaction of the deep sea test system; the compensation system provides hydraulic pressure compensation for the deep sea test system; the observation system provides illumination and underwater image for the deep sea test system; the sensor system provides terrain reference and obstacle avoidance reference for the deep sea test system through depth and distance measurement; one end of the umbilical is connected at the top of the main structure (2), and the other end of the umbilical is connected with the electric control system of the functional assembly through the umbilical guide slot (3) arranged on the outer wall of the main pressure cabin (5); the electric control system includes: a umbilical terminal box (14), a power transformer (7), a control transformer (8), an underwater control cabin (15) and a battery box (16); the umbilical terminal box (14) is installed on the transverse frame of the main structure (2), the umbilical terminal box (14) is an oil-filled compensation pressure square box structure, different medium physical isolation and logical distribution in the umbilical accessed to the umbilical terminal box (14) are realized, ensuring that each working unit inside the functional assembly is independently powered and realizing data interaction; the power transformer (7) and the control transformer (8) are adjacently installed on the transverse frame of the main structure (2), and constitute a distributed underwater transformer power unit; the power transformer (7) converts the high-voltage power inputted by the umbilical into low-voltage power for the operation of the deep sea test system; the control transformer (8) converts the power supply voltage in the battery box (16) into the voltage required by the control circuit of the electric control system, and then provides equipment power for the observation system and the sensor system through the control circuit of the electric control system; the underwater control cabin (15) is arranged on the vertical frame of the main structure (2), realizing the power distribution, signal processing, equipment control and monitoring of the deep sea test system; the battery box (16) is arranged at the bottom of the frame of the main structure (2), the battery box (16) is integrated with a deep sea lithium battery pack and a battery pack intelligent management system, obtains electric energy from outside and outputs electric energy to outside; the compensation system includes: a plurality of compensators (6); the compensators (6) are adjacently installed with the power transformer (7), the control transformer (8), the umbilical terminal box (14) and the battery box (16), and provide hydraulic pressure compensation for the power transformer (7), the control transformer (8), the umbilical terminal box (14) and the battery box (16).

2. The deep ocean testing system of claim 1, wherein, The compensation system has five compensators (6) in common, two power transformers (7) in common, and one control transformer (8) in common; Among the five compensators (6), three compensators (6) independently compensate the power transformer (7) and the control transformer (8) respectively; the other two compensators (6) realize pressure compensation of the umbilical cable terminal box (14) through balancing seawater pressure and internal gap oil compensation of the umbilical cable; The power transformer (7) and the control transformer (8) both adopt oil-filled compensation pressure-resistant cylindrical structures; The underwater control cabin (15) adopts a cylindrical pressure-resistant dry cabin structure; The compensator (6) is a liquid level feedback compensator, and each compensator (6) is independently connected to the compensation object through a hydraulic hose; each compensator (6) is integrated with a liquid level feedback sensor to monitor the liquid level of the compensated object in real time.

3. The deep ocean testing system of claim 1, wherein, The observation system includes a plurality of underwater lights (9) and underwater cameras (10); The underwater light (9) provides an active light source, The underwater camera (10) provides real-time visual feedback through high-definition images and intelligent algorithms; The installation positions of the underwater light (9) and the underwater camera (10) are adjusted according to the lighting and underwater image coverage range, and the underwater image coverage range is the top of the main pressure-resistant cabin (5) in the deep sea test system and the space above it, the umbilical cable on the umbilical cable guide slot (3), and the outside and below the test system.

4. The deep ocean testing system of claim 1, wherein, The sensor system is arranged at the bottom of the main structure (2), and the sensor system includes an altimeter (11) and a depth gauge (12); The altimeter (11) measures the vertical distance between the deep sea test system and the seabed or obstacles to realize terrain following and obstacle avoidance; The depth gauge (12) measures water pressure or sound wave reflection time to obtain the vertical depth of the deep sea test system relative to the water surface in real time.

5. The deep ocean testing system of claim 1, wherein, The main structure (2) is a tower-shaped frame structure made of titanium alloy, and the main pressure-resistant cabin (5) is a capsule-shaped structure made of titanium alloy.

6. The deep ocean testing system of claim 1, wherein, The bottom of the main structure (2) is provided with a supporting base and a single-side support system for reinforcing the bottom frame of the main structure (2), and the single-side support system reinforces the strength of the main structure (2) under the single-side landing load condition of the deep sea test system.

7. The deep ocean testing system of claim 1, wherein, There is no electrical equipment within 100-200mm height of the bottom surface of the main structure (2) upward, The bottom of the main structure (2) is equipped with a bottom protection net (13); The side wall of the main structure (2) is provided with a side protection net (4), and the functional components are arranged between the side protection net (4) and the main pressure-resistant cabin (5).

8. The deep ocean testing system of claim 1, wherein, Further comprising: An underwater hot standby battery pack, The underwater hot standby battery pack includes a hot standby battery pack control system and a water circulating pump emergency hot standby; The underwater hot standby battery pack is connected to the electrical control system of the functional components and serves as an emergency power supply for the battery box power supply of the deep sea test system, providing a safety protection power supply for the deep sea test system when the battery box (16) power supply fails.

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