Storage device suitable for inclined aerial remote sensing equipment

Abstract

A storage device suitable for inclined aerial remote sensing equipment belongs to the technical field of aerial remote sensing. The onboard controller (comprising a CPU device, a memory device, a storage device, an ATX power supply, the industrial mainboard and a 10G network card (comprising double-port 10G) carrying the industrial mainboard are respectively connected with the onboard disk array through a multi-link optical fiber line; the solid state disk (including eight 2T solid state disks), the storage system (including a Raid5 distributed storage system), the cooling fan and the system switch) are respectively connected with the onboard disk array through a multi-link optical fiber line. The method has the advantages that the onboard disk array is connected with the multi-link optical fiber, the data storage speed and safety are greatly improved, and the onboard disk array supports the overall hot plug technology, so that hard disks are easily added or replaced under the condition that a system is not closed, and the storage capacity is quickly expanded.

Description

Technical Field

[0001] The invention belongs to the technical field of aerial remote sensing and relates to a storage device suitable for tilting aerial remote sensing equipment. Background Art

[0002] The oblique aerial remote sensing system is a high-resolution, multi-angle aerial photography technology system. The system is usually carried on a flying platform, such as a helicopter or a drone. The system consists of multiple sensors (such as medium-format cameras) that can simultaneously collect images from different angles such as vertical and multiple side views. By shooting from multiple angles, it can make up for the shortcomings of vertical photography, obtain the side texture of the object in all directions, and reduce blind spots. The system integrates a high-precision attitude positioning system, which can obtain centimeter-level accuracy attitude position information to ensure the accuracy of the measurement results. Based on oblique images, using advanced positioning, fusion, modeling and other technologies, a real three-dimensional city model can be generated, providing strong support for urban planning, management and other fields.

[0003] Due to the multi-lens characteristics of the oblique aerial remote sensing system, a large amount of image data will be generated in a short period of time when shooting aerial images. The existing oblique aerial remote sensing system on-board storage in China uses on-board SSD storage to increase the storage speed for higher-configuration systems. As the demand for real-life three-dimensional image ground resolution becomes higher and higher, and the area for acquiring data becomes larger and larger, it is necessary to lower the flight altitude and increase the flight speed, which leads to an increasing amount of data generated per unit time. The shortcomings of on-board single-disk SSD storage capacity and storage security are also increasingly exposed. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and provides a storage device suitable for tilted aerial remote sensing equipment.

[0005] A storage device suitable for tilted aerial remote sensing equipment, the industrial mainboard includes a CPU device, a memory device and a storage device, the ATX power supply, the industrial mainboard and a 10G network card (including dual-port 10G) are respectively connected to an on-board disk array through a multi-link optical fiber line, and the solid-state hard disk (including 8 2T solid-state hard disks), a storage system (including a Rad5 distributed storage system), a cooling fan and a system switch are respectively connected to the on-board disk array through a multi-link optical fiber line.

[0006] A storage device suitable for tilted aerial remote sensing equipment, wherein the base is connected to the bottom plate and the main board in sequence, one side of the main board is connected to the network card, the hard disk drawer is connected to the hard disk cage, the back of the hard disk cage is connected to the hard disk back plate and the back plate bracket, the power board is connected to the side of the hard disk cage, the bottom of the hard disk cage is connected to the main board, the fan is connected to the rear panel, the core mother seat is connected to the rear panel, the front panel is connected to the base and the upper cover respectively, the back of the base and the upper cover is connected to the rear panel, the left side of the base is connected to the left side plate through the left hanging ear, the right side of the base is connected to the right side plate through the right hanging ear, the upper cover is connected to the handle, and the round switch is connected to the hard disk drawer. The main board and the bottom plate are connected using a shock-absorbing coil.

[0007] A storage method suitable for tilted aerial remote sensing equipment comprises the following steps:

[0008] The steps of adopting multi-link technology are as follows: multiple optical fibers are used to connect the disk array and the controller for data transmission, and multi-channel and dual-channel data transmission and storage are adopted. The camera and the switch use 5 optical fibers respectively through dual channels and multiple optical fibers to connect the switch and the controller.

[0009] Use fiber optic transmission steps: greatly improve transmission speed and data transmission stability.

[0010] Data deduplication and compression steps: The array system has a self-correction function. The compression function means that after storage, the array system optimizes the storage mode and data storage sequence.

[0011] Each disk is attached to an aluminum alloy fixing plate to transfer heat to the outer shell for heat dissipation. The heat dissipation is done by air entering from the front panel and air exiting from the rear panel.

[0012] The operation steps of the on-board disk array are as follows: multiple oblique cameras are connected and transmitted via optical fiber, and a large amount of image data is transmitted to the controller in real time through the switch. The controller allocates the storage mechanism and stores a large amount of remote sensing image data in the on-board disk array to achieve rapid data storage.

[0013] The advantages of the present invention are:

[0014] 1) The oblique aerial remote sensing system has shown significant advantages in scalability and flexibility after using airborne disk arrays and ground disk arrays. The onboard disk array supports hot-swappable technology, which means that hard disks can be easily added or replaced without shutting down the system, thereby quickly expanding storage capacity. This flexibility is crucial for aerial cameras that need to process large amounts of aerial data, because it allows operators to dynamically adjust storage resources according to actual needs, avoiding operational interruptions caused by insufficient storage capacity.

[0015] 2) Onboard aviation disk arrays and ground disk arrays can support multiple RAID level configurations. Operators can select the appropriate RAID level based on data security and performance requirements, providing strong guarantees for the flexibility and security of data storage.

[0016] 3) Multi-link technology is used to greatly improve the reading and writing speeds. This design not only significantly improves the overall performance of the system, but also demonstrates its advancement in the field of storage technology.

[0017] 4) Due to the introduction of on-board disk arrays, the ordinary USB transmission currently widely used in the market can no longer meet its performance requirements. In order to maximize the performance of on-board disk arrays, new optical fiber technology is used to perform multi-link links, thereby solving problems including but not limited to transmission distance, bandwidth requirements and cost-effectiveness. This method uses single-mode optical fiber to support ultra-long distance, high-bandwidth data transmission, and at the same time uses armored optical fiber cables to enhance the mechanical strength and anti-environmental interference capabilities of the optical fiber, ensuring the stability and reliability of data transmission under various harsh conditions.

[0018] 5) Multiple oblique cameras are connected via optical fiber, and a large amount of image data is transmitted to the controller in real time through a switch. The controller allocates a storage mechanism to store a large amount of remote sensing image data in the airborne disk array, which has the advantages of fast data storage, high integration of the entire system, and modular structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. As shown in the figure:

[0020] Figure 1 It is the appearance structure diagram of the present invention.

[0021] Figure 2 It is a rear panel diagram of the present invention.

[0022] Figure 3 It is a structural diagram of the present invention.

[0023] Figure 4 It is the internal structure diagram of the present invention.

[0024] Figure 5 It is a flow chart of the present invention.

[0025] Front panel 1, rear panel 2, upper cover 3, base 4, left side panel 5, right side panel 6, left mounting ear 7, right mounting ear 8, mainboard bottom plate 9, mainboard 10, hard disk cage 11, hard disk drawer 12, handle 13, network card 14, round switch 15, power board 16, hard disk backplane 17, backplane bracket 18, fan 19, core socket 20, core socket 21.

[0026] Power supply / flight platform, power supply, first optical fiber data transmission, tablet computer FANS, controller, second optical fiber data transmission, airborne array, array power supply, image data transmission, navigation information interaction and camera triggering, combined inertial navigation POS, POS power supply, 10G switch, event information feedback,

[0027] SFP+AOC fiber optic cable, camera power supply, multi-camera synchronization trigger signal, camera trigger information, image data transmission, synchronization trigger, camera, camera power supply. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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 embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: A storage device suitable for tilting aviation remote sensing equipment, which improves on-board storage speed and storage safety.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a storage device suitable for tilted aerial remote sensing equipment, the base 4 is connected to the mainboard bottom plate 9 and the mainboard 10 in sequence, one side of the mainboard 10 is connected to the network card 14, the hard disk drawer 12 is connected to the hard disk cage 11, the back of the hard disk cage 11 is connected to the hard disk backplane 17 and the backplane bracket 18, the power board 16 is connected to the side of the hard disk cage 11, the bottom surface of the hard disk cage 11 is connected to the mainboard 10, the fan 19 is connected to the rear panel 2, the core mother seat 20 and the core mother seat 21 are respectively connected to the rear panel 2, the front panel 1 is respectively connected to the base 4 and the upper cover 3, the back of the base 4 and the upper cover 3 are connected to the rear panel 2, the left side of the base 4 is connected to the left side plate 5 through the left hanging ear 7, the right side of the base 4 is connected to the right side plate 6 through the right hanging ear 8, the upper cover 3 is connected to the handle 13, and the round switch 15 is connected to the hard disk drawer 12.

[0031] like Figure 4As shown, a storage device suitable for tilted aerial remote sensing equipment, the industrial mainboard includes a CPU device, a memory device and a storage device, the ATX power supply, the industrial mainboard and the 10G network card (including dual-port 10G) are respectively connected to the on-board disk array, the solid-state hard disk (including 8 2T solid-state hard disks), the storage system (including Rad5 distributed storage system), the cooling fan and the system switch are respectively connected to the on-board disk array.

[0032] like Figure 5 As shown, a storage method suitable for inclined aerial remote sensing equipment, the tablet computer FANS exchanges navigation information interaction and camera trigger information with the combined inertial navigation POS, the airborne array and the controller bidirectionally exchange the first optical fiber data transmission and the second optical fiber data transmission, the controller supplies array power to the airborne array, the power supply / flight platform is connected to the controller, the controller supplies power to the 10 Gigabit switch and the synchronous trigger, the controller supplies power to the combined inertial navigation POS through the POS, the 10 Gigabit switch transmits image data to the controller, the camera transmits image data transmission to the 10 Gigabit switch through the SFP+AOC optical fiber cable, the camera is connected to the combined inertial navigation POS through Event information feedback, the combined inertial navigation POS is connected to the synchronous trigger for camera trigger information, and the synchronous trigger is connected to the camera for multi-camera synchronous trigger signal.

[0033] The method comprises the following steps: the camera system in the oblique aerial photography system is composed of at least 5 medium-format industrial camera sensors, which are connected to the power supply system, the trigger circuit for receiving exposure instructions, and the data transmission circuit, which is composed of at least 5 optical fibers. The camera system is connected to the switch for data distribution, and the controller is used to control the camera and decode the data, which is then transmitted to the onboard disk array through multi-link optical fibers for data storage.

[0034] During the actual flight, the operator uses the flight control tablet computer to perform fixed-point or timed exposure according to the planned route. The exposure signal is written into the coordinates and attitude data through the POS system and passed to the synchronization trigger. The multi-camera system synchronously triggers the exposure and writes the POS data. The synchronously exposed multi-image data is transmitted to the controller running memory through the optical fiber through the switch, and is stored in the onboard disk array through the multi-link optical fiber after being processed by the computer.

[0035] In the process of data generation and transmission, if it is implemented according to the traditional technology, there will be transmission interruption, transmission interference, and the transmission speed cannot keep up with the possibility of data loss. Therefore, multi-link optical fiber effectively improves the anti-interference and stability of the transmission process. The application of multi-link optical fiber technology also greatly improves the transmission speed, avoiding system crashes or data loss caused by data congestion.

[0036] The onboard disk array first solves the problem of data storage space. It can expand or replace the capacity of a single disk on a large scale to increase the total capacity, avoiding the trouble of returning due to insufficient storage capacity due to long-term flight. Secondly, with multi-link fiber optic transmission, it meets the requirements of fast writing of large-capacity data. The guarantee of its reading and writing speed can greatly improve work efficiency. Its data backup speed can be increased by more than 4 times. Moreover, the onboard disk array is built in RAID5 mode, in which one storage disk is a spare disk. When any other disk has a problem, the spare disk will immediately participate in the recording to correct the error, thereby avoiding data scrapping caused by storage failure, greatly reducing the equipment failure rate, and improving the security and efficiency of data storage.

[0037] Example 2: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a storage device suitable for oblique aerial remote sensing equipment has higher and higher requirements for ground resolution of real-life three-dimensional images and larger and larger data acquisition areas, so it is necessary to lower the flight altitude and increase the flight speed, which leads to an increasing amount of data generated per unit time. The shortcomings of the storage capacity and storage security of the onboard single-disk SSD are also increasingly exposed.

[0038] The invention aims to improve the onboard storage speed and storage safety of an oblique aerial photography system.

[0039] A storage method suitable for oblique aerial remote sensing equipment, wherein the onboard array uses a full SSD disk, includes the following steps:

[0040] Step 1: On-board disk array storage:

[0041] 1) Technology selection: In technology selection, airborne arrays tend to use all-SSD disks. This is mainly due to the significant advantages of SSDs in performance and durability, including faster read and write speeds, higher random access performance, and excellent earthquake resistance, which are very suitable for the high requirements of aerial cameras for efficient data processing and stable operation.

[0042] 2) Multi-link technology is used: multiple optical fibers are used to connect the disk array and the controller for data transmission, and multi-channel and dual-channel data transmission and storage are used. Similarly, the camera and the switch use 5 optical fibers to connect the switch and the controller through dual channels and multiple optical fibers, realizing instantaneous large-capacity data multi-channel transmission, so as to realize fast data transmission and storage, thereby quickly releasing the running memory and reducing the pressure on the controller. This not only improves the data transmission speed, but also reduces the high operating pressure of the controller, thereby reducing data jams and operating stability. For example, the difference between a 3-lane and 6-lane highway is that during peak hours, a 6-lane can obviously reduce congestion, and the speed of the vehicle can also be guaranteed, and the accident rate and traffic jams are also reduced.

[0043] Multi-link technology greatly improves the reading and writing speeds, significantly improves the overall performance of the system, and demonstrates its advancement in the field of storage technology.

[0044] The use of optical fiber transmission greatly improves the transmission speed and data transmission stability.

[0045] The array has excellent seismic resistance and is designed specifically for aviation environments. It can maintain stable operation under strong vibration conditions, ensuring data integrity and system reliability, further highlighting its technological leadership.

[0046] Disk arrays focus on the integration of power consumption, volume, weight and advanced technology. By adopting advanced low-power components, compact structural design, and intelligent technologies such as data deduplication and compression, the array achieves low power consumption, small volume, light weight and maximum utilization of storage space while ensuring high performance. It is very suitable for the aviation field that has strict requirements on space, weight, energy consumption and performance.

[0047] Data deduplication and compression: During the storage of large amounts of data, a large amount of data redundancy will be generated, and the array system has a self-correction function. The compression function means that after storage, the array system will optimize the storage mode and data storage sequence, thereby optimizing the storage space.

[0048] Step 2: Set the disk array parameters on the machine:

[0049] The outer shell and internal fixings are made of aviation aluminum alloy 6061, anodized black.

[0050] Storage disk slots: There are 8 disk slots, fixed with screws, which is convenient for replacing hard disks (if hard disks are damaged). Each disk is attached with an aluminum alloy fixing plate to conduct heat to the outer shell for heat dissipation.

[0051] Optical port network card: An optical port network card has at least 2 optical ports.

[0052] Heat dissipation: Heat dissipation considers air intake from the front panel and air outlet from the rear panel.

[0053] Power supply: DC 24V-28V power supply, the power input (24-28V) interface uses the Remo ECG.2B.302.CLL aviation connector, and the display power output (12V) interface uses the Remo ECG.0B.302.CLL aviation connector (spare interface).

[0054] Step 3: Set the disk array operation mode:

[0055] Multiple oblique cameras are connected via optical fiber to transmit large amounts of image data in real time to the controller via a switch. The controller allocates a storage mechanism to store large amounts of remote sensing image data in the onboard disk array, thereby achieving the function of rapid data storage.

[0056] The camera system in the oblique aerial photography system consists of at least 5 medium-format industrial camera sensors. In addition to being connected to the power supply system, these sensors are also connected to the trigger line to receive exposure instructions and the data transmission line, which is composed of at least 5 optical fibers. The camera system is connected to the switch for data distribution, and the controller controls the camera and decodes the data, which is then transmitted to the onboard disk array through multi-link optical fibers for data storage.

[0057] During the actual flight, the operator uses the flight control tablet computer to perform fixed-point or timed exposure according to the planned route. The exposure signal is written into the coordinates and attitude data through the POS system and passed to the synchronization trigger. The multi-camera system synchronously triggers the exposure and writes the POS data. The synchronously exposed multi-image data is transmitted to the controller running memory through the optical fiber through the switch, and is stored in the onboard disk array through the multi-link optical fiber after being processed by the computer.

[0058] In the process of data generation and transmission, if it is implemented according to the traditional technology, there will be transmission interruption, transmission interference, and the transmission speed cannot keep up with the possibility of data loss. Therefore, multi-link optical fiber effectively improves the anti-interference and stability of the transmission process. The application of multi-link optical fiber technology also greatly improves the transmission speed, avoiding system crashes or data loss caused by data congestion.

[0059] The onboard disk array first solves the problem of data storage space. It can expand or replace the capacity of a single disk on a large scale to increase the total capacity, avoiding the trouble of returning due to insufficient storage capacity due to long-term flight. Secondly, with multi-link fiber optic transmission, it meets the requirements of fast writing of large-capacity data. The guarantee of its reading and writing speed can greatly improve work efficiency. Its data backup speed can be increased by more than 4 times. Moreover, the onboard disk array is built in RAID5 mode, in which one storage disk is a spare disk. When any other disk has a problem, the spare disk will immediately participate in the recording to correct the error, thereby avoiding data scrapping caused by storage failure, greatly reducing the equipment failure rate, and improving the security and efficiency of data storage.

[0060] Example 3: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a storage method suitable for tilted aerial remote sensing equipment includes the following steps:

[0061] The onboard array uses all SSD disks.

[0062] Adopt multi-link technology: use multiple optical fibers to connect the disk array and controller for data transmission, adopt multi-path, dual-channel data transmission and storage, the camera and switch use 5 optical fibers respectively through dual channels, multiple optical fibers connect the switch and controller, realize instantaneous large-capacity data multi-channel transmission, realize fast data transmission and storage, and quickly release running memory.

[0063] The use of optical fiber transmission greatly improves the transmission speed and data transmission stability.

[0064] Anti-seismic performance: the onboard disk array uses a shock-absorbing plate to achieve anti-seismic effect, and the main board and the base plate are connected with a shock-absorbing coil. During the aircraft operation, it can fully absorb and buffer the impact of high-frequency vibrations on the array's transmission and storage of data.

[0065] Data deduplication and compression: During the storage of large amounts of data, a large amount of data redundancy will be generated, and the array system has a self-correction function. The compression function means that after storage, the array system will optimize the storage mode and data storage sequence, thereby optimizing the storage space.

[0066] The outer shell and internal fixings are made of aviation aluminum alloy 6061, anodized black.

[0067] Storage disk slots: There are 8 disk slots, fixed with screws, which is convenient for replacing hard disks (if hard disks are damaged). Each disk is attached with an aluminum alloy fixing plate to conduct heat to the outer shell for heat dissipation.

[0068] Optical port network card: An optical port network card has at least 2 optical ports.

[0069] Heat dissipation: Heat dissipation considers air intake from the front panel and air outlet from the rear panel.

[0070] Power supply: DC 24V-28V power supply, the power input (24-28V) interface uses the Remo ECG.2B.302.CLL aviation connector, and the display power output (12V) interface uses the Remo ECG.0B.302.CLL aviation connector (spare interface).

[0071] Operation mode of on-board disk array: Multiple oblique cameras are connected and transmitted via optical fiber, and a large amount of image data is transmitted to the controller in real time through the switch. The controller allocates the storage mechanism and stores a large amount of remote sensing image data to the on-board disk array, thereby realizing the function of rapid data storage.

[0072] The camera system in the oblique aerial photography system is composed of at least 5 medium-format industrial camera sensors. The sensors are connected to the power supply system and trigger circuits to receive exposure instructions and are connected to the data transmission lines, which are composed of at least 5 optical fibers.

[0073] The camera system is connected to the switch for data distribution, and the controller controls the camera and decodes the data, which is transmitted via multi-link optical fiber to the onboard disk array for data storage.

[0074] The operator uses the flight control tablet computer to perform fixed-point or timed exposure according to the planned route. The exposure signal is written into the coordinates and attitude data through the POS system and passed to the synchronization trigger. The multi-camera system synchronously triggers the exposure and writes the POS data. The synchronously exposed multi-image data is transmitted to the controller running memory through the optical fiber through the switch, and is stored in the onboard disk array through the multi-link optical fiber after being processed by the computer.

[0075] In order to match the requirement of fast writing of large-capacity data with multi-link optical fiber transmission, the onboard disk array is constructed in RAID5 mode, in which one storage disk is a spare disk. When any other disk has a problem, the spare disk will immediately participate in recording and correcting the error.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A storage device suitable for tilted aerial remote sensing equipment, characterized in that: The controller equipped with an industrial motherboard (including a CPU device, a memory device and a storage device, an ATX power supply, an industrial motherboard and a 10G network card (including dual-port 10G) are connected to the on-board disk array through multi-link optical fiber lines, and the solid-state hard disk (including 8 2T solid-state hard disks), a storage system (including a Raid5 distributed storage system), a cooling fan and a system switch are connected to the on-board disk array through multi-link optical fiber lines.

2. A storage device suitable for tilted aerial remote sensing equipment according to claim 1, characterized in that: The base is connected to the bottom plate and the mainboard in sequence, one side of the mainboard is connected to the network card, the hard disk drawer is connected to the hard disk cage, the back of the hard disk cage is connected to the hard disk backplane and the backplane bracket, the power board is connected to the side of the hard disk cage, the bottom of the hard disk cage is connected to the mainboard, the fan is connected to the rear panel, the core mother socket is connected to the rear panel, the front panel is connected to the base and the upper cover respectively, the back of the base and the upper cover is connected to the rear panel, the left side of the base is connected to the left side plate through the left hanging ear, the right side of the base is connected to the right side plate through the right hanging ear, the upper cover is connected to the handle, and the round switch is connected to the hard disk drawer.

3. A storage device suitable for tilted aerial remote sensing equipment according to claim 2, characterized in that: The mainboard and bottom plate are connected using a shock-absorbing coil.

4. A storage method suitable for tilted aerial remote sensing equipment, characterized in that: The steps of using multi-link technology are as follows: multiple optical fibers are used to connect the disk array and the controller for data transmission, and multi-channel and dual-channel data transmission and storage are adopted. The camera and the switch use 5 optical fibers respectively through dual channels, and multiple optical fibers connect the switch and the controller. Use fiber optic transmission steps: improve transmission speed and data transmission stability, Data deduplication and compression steps: The array system has a self-correction function. The compression function means that after storage, the array system optimizes the storage mode and data storage sequence. Each disk is attached to an aluminum alloy fixing plate to transfer heat to the outer shell for heat dissipation. The heat dissipation is air intake from the front panel and air outlet from the rear panel. The operation steps of the on-board disk array are as follows: multiple oblique cameras are connected and transmitted via optical fiber, and a large amount of image data is transmitted to the controller in real time through the switch. The controller allocates the storage mechanism and stores a large amount of remote sensing image data in the on-board disk array to achieve rapid data storage.

5. A storage method suitable for tilted aerial remote sensing equipment according to claim 4, characterized in that: The operator uses the flight control tablet computer to perform fixed-point or timed exposure according to the planned route. The exposure signal is written into the coordinates and attitude data through the POS system and passed to the synchronization trigger. The multi-camera system synchronously triggers the exposure and writes the POS data. The synchronously exposed multi-image data is transmitted to the controller running memory through the optical fiber through the switch, and is stored in the onboard disk array through multi-link optical fiber after being processed by the computer. The onboard disk array is organized in RAID5 mode, in which one storage disk is a spare disk. When any other disk has a problem, the spare disk will immediately participate in the recording to correct the error.

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