A flight parameter recorder

Abstract

The application relates to the technical field of the aerospace industry, in particular to a flight parameter recorder, a card reader module is arranged in the shell module, a video card module is connected to one side of the card reader module, the card reader module comprises a card inserting assembly, a card reading assembly and a transmission and sensing assembly, and the transmission and sensing assembly is arranged on the surface of the card inserting assembly. The application solves the complex processing technology of the flight parameter recorder, overcomes the deficiencies of the existing technology in the aspects of efficiency, cost, precision, material utilization, environmental protection and the like, simplifies the complex technological process, improves the production efficiency, reduces the cost, improves the product quality, better meets the increasingly complex and diversified demands of the modern industrial field, simultaneously has the functions of high-strength impact resistance, high-temperature resistance, fire prevention, water resistance, corrosion resistance and the like, and through the modular design, the flight parameter recorder is convenient to disassemble and assemble and read data, and the wind resistance can be reduced, and the damage probability can be reduced when the airplane is disassembled.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of the aerospace industry, in particular to a flight parameter recorder. BACKGROUND

[0002] With the rapid development of the aerospace industry, the flight parameter recorder has gradually taken shape under the joint promotion of the demand for flight safety, the urgent need for aviation accident investigation, and the progress of avionics, data storage and other technologies. The early flight parameter data recording technology was mainly to help investigate the causes of accidents, but with the development of technology and various needs, the application range of the flight parameter recorder has gradually expanded, becoming an indispensable tool in modern aviation safety and operation management. The application of the flight parameter recorder in the aerospace field is not limited to civil aviation aircraft, and its role in military aviation, spacecraft, unmanned aerial vehicles and other aerospace activities is also important.

[0003] The most core advantage of the flight parameter recorder is that it can record various parameters of the flight in real time, such as speed, altitude, flight attitude, engine performance and other key data during the flight of the aircraft or space mission. These data are crucial for flight safety, mainly reflected in accident investigation and cause analysis, prevention of potential flight risks, and real-time flight data provided by the flight parameter recorder plays a relatively important role in optimizing flight performance, which can help improve the overall performance of the flight during the flight mission, such as flight operation optimization and aircraft system optimization. The application of the flight parameter recorder in the aerospace field helps to meet the relevant regulations of international aerospace management agencies on flight safety, and also ensures the standardization of the operation of aviation units and space agencies. The data recorded by the flight parameter recorder can be used for flight data reports and regular audits, which can help aviation units and space agencies prove their compliance with flight safety. This is not only a requirement for flight regulation, but also to ensure flight reliability and safety standards.

[0004] In space missions, the flight parameter recorder can monitor the working state of the spacecraft in terms of orbital flight, attitude adjustment, propulsion work, etc., helping ground control personnel to master the operation of the spacecraft in real time. In complex space station missions or deep space exploration missions, the flight parameter recorder plays an indispensable role. After the completion of the space mission, the data recorded by the flight parameter recorder can provide relevant technical support for the optimization of future tasks. Through detailed review of the task process, researchers can analyze each link of the task, find out potential problems, and can design improvement schemes for future flight missions.

[0005] Currently, the flight recorders used in the field of aerospace also have the advantages that need to be important, but the existing flight data recording technology also has some shortcomings and limitations. The industry basically uses casting or mold machining process to manufacture the recorder; the original recorder has long production and manufacturing cycle, high cost; compatibility problem lags behind; physical space is limited and hardware is easy to be damaged. The original flight parameter recorder has the potential safety hazards such as position deviation or record disconnection during flight due to factors such as vibration, external force, gravity and high temperature environment. SUMMARY

[0006] The purpose of the present application is to provide a flight parameter recorder to solve the problems of long production and manufacturing cycle, high cost, compatibility problem lags behind, and easy to exist record disconnection of the original recorder in the background art.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a flight parameter recorder, comprising a shell module, a card reader module is installed inside the shell module, and a video card module is inserted on one side of the card reader module, the card reader module comprises a card insertion assembly, a card reading assembly and a transmission and sensing assembly, the card insertion assembly and the card reading assembly are installed side by side inside the shell module, and the surface of the card insertion assembly is installed with the transmission and sensing assembly, which is used for in-place sensing work after the video card module is inserted;

[0008] The card insertion assembly comprises a card insertion frame and a guide positioning pin, the card insertion frame is installed inside the shell module, and the surface of the card insertion frame is installed with the guide positioning pin, which is used for positioning work after the video card module is inserted;

[0009] The transmission and sensing assembly comprises a module sensing shaft, a top-opening optical coupling sensor, a sensing seat, an sensing blocking piece and a rotary optical coupling sensor; the module sensing shaft is rotatably connected to the surface of the card insertion frame, the surface of the card insertion frame is installed with the sensing seat, the surface of the sensing seat is installed with the top-opening optical coupling sensor through bolts, and the top-opening optical coupling sensor cooperates with the module sensing shaft to realize signal exchange, power transmission or data connection.

[0010] Preferably, the card reading assembly comprises a power supply fixing plate, a card reader PCB and a cooling fan, the power supply fixing plate is arranged inside the shell module, the surface of the power supply fixing plate is installed with the card reader PCB, and the surface of the power supply fixing plate is provided with four cooling fans, which are used for heat dissipation of the power supply fixing plate and the card reader PCB.

[0011] Preferably, the shell module is formed by a lower cover plate, an upper cover plate and a front panel, and the lower cover plate and the upper cover plate are fixedly connected with the card insertion frame and the power supply fixing plate through screws, and the front panel is fixedly connected with the card insertion frame through screws.

[0012] Preferably, the video card module includes a video card housing and a sub-acquisition PCB. The video card housing contains a main acquisition PCB, a video card receiver, a video card transmitter, a power control PCB, a magnetic core, and a sub-acquisition PCB, all mounted inside by screws.

[0013] Preferably, a positioning guide sleeve is bolted to the surface of the video card housing, and one end of the positioning guide sleeve penetrates through the video card housing. When the video card housing is inserted into the card holder, it is positioned by interlocking with the positioning guide sleeve through a guide positioning pin.

[0014] Preferably, module guide strips are bolted to both the left and right sides of the video card housing. These module guide strips are used to limit the movement of the video card housing when the card insertion assembly is inserted.

[0015] Preferably, the card insertion assembly further includes a front baffle, which is hinged to the surface of the card holder via a shaft. The front baffle is used to protect the interior of the housing module.

[0016] Preferably, guide grooves are provided on both the left and right sides of the inner wall of the card slot, which cooperate with the module guide strip to limit the insertion of the video card module into the card slot assembly; a POW data acquisition board is also installed on the surface of the card slot.

[0017] Preferably, a rotary optical coupler sensor is installed on the surface of the card slot, and the sensing baffle is hinged to the surface of the card slot via a sensing pin. One side of the sensing baffle passes through the card slot and extends into the interior of the guide groove. When the video card module is pushed into the card slot, the module guide bar will push open the sensing baffle, and the opening of the sensing baffle will trigger the rotary optical coupler sensor.

[0018] Preferably, a knob handle is installed at one end of the surface of the module sensing shaft, and a spring retaining ring is fitted on the surface of the module sensing shaft. One end of the spring retaining ring contacts the card holder, and the other end contacts the surface of the module sensing shaft.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (i) Solve the complex manufacturing process of flight parameter recorders and overcome the shortcomings of existing processes in terms of efficiency, cost, accuracy, material utilization, and environmental protection. Through technological innovation, simplify complex processes, improve production efficiency, reduce costs, improve product quality, and better meet the increasingly complex and diversified needs of modern industry;

[0021] (II) High strength impact design: fly with titanium alloy or stainless steel shell, can withstand the impact of the crash (up to 3400g acceleration); internal use multilayer shock absorbing structure (such as honeycomb structure, foam cushioning material) effectively absorb impact force, protect the storage module;

[0022] (III) High temperature resistant fireproof structure: recorder outer layer of high temperature resistant heat insulation material resistant to high temperature alloy wrapped, can work continuously at 1000°C high temperature minutes, prevent data from being damaged by fire;

[0023] (IV) Waterproof corrosion resistance: the use of fully sealed waterproof structure, can be immersed in seawater for up to 30 days, to ensure that the data will not be damaged by water; shell coated with corrosion resistant coating, can resist the influence of seawater, aviation fuel and other corrosive liquids;

[0024] (V) Modular design, easy to maintain: the use of independent storage unit, easy to repair and replace; connecting pieces, data interface in line with aviation standards, easy to disassemble and data reading;

[0025] (VI) Optimize the aerodynamic structure: the structure design to reduce wind resistance, in order to reduce the probability of damage when the plane disintegrates, not easy to damage can be recycled after falling. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the three-dimensional appearance structure of the present application;

[0027] Figure 2 is a schematic diagram of the video card module in a separated state of the present application;

[0028] Figure 3 is a schematic diagram of the internal enlarged structure of the present application;

[0029] Figure 4 is a schematic diagram of the local pre-explosion view state of the present application;

[0030] Figure 5 is a schematic diagram of the local post-explosion view state of the present application;

[0031] Figure 6 is a schematic diagram of the card reader module explosion amplification of the present application;

[0032] Figure 7 is a schematic diagram of the video card module explosion amplification of the present application;

[0033] Figure 8 is a schematic diagram of the transmission and induction assembly amplification of the present application.

[0034] In the figure: 1, the shell module; 11, the lower cover plate; 12, the upper cover plate; 13, the front panel; 2, the video card module; 21, the video card shell; 22, the module guide bar; 23, the acquisition mainboard PCB; 24, the video card receiving end; 25, the video card transmitting end; 26, the power control board PCB; 27, the magnetic core; 28, the positioning guide sleeve; 29, the acquisition subboard PCB; 3, the card reader module; 4, the card insertion assembly; 41, the card insertion frame; 42, the guide positioning pin; 43, the front baffle; 44, the guide groove; 45, the POW data acquisition board; 5, the card reading assembly; 51, the power supply fixing plate; 52, the card reader PCB; 53, the cooling fan; 6, the transmission and induction assembly; 61, the module induction rotating shaft; 611, the knob handle; 612, the spring stop ring; 62, the top-opening photoelectric inductor; 63, the induction seat; 64, the induction baffle; 641, the insertion pin; 65, the rotary photoelectric inductor. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right" and the like are only used for the purpose of description, and cannot be understood as indicating or implying relative importance. Meanwhile, in the description of the present application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, or indirectly connected through an intermediate medium. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] The structure of the flight parameter recorder provided by the present application is as shown in Figure 1 and Figure 3 The shell module 1 is formed by the lower cover plate 11, the upper cover plate 12 and the front panel 13, and the lower cover plate 11 and the upper cover plate 12 are fixedly connected with the card insertion frame 41 and the power supply fixing plate 51 by screws, and the front panel 13 is fixedly connected with the card insertion frame 41 by a screw. The card reader module 3 is installed in the inside of the shell module 1, and the video card module 2 is inserted on one side of the card reader module 3. The card reader module 3 includes the card insertion assembly 4, the card reading assembly 5 and the transmission and induction assembly 6. The card insertion assembly 4 and the card reading assembly 5 are installed side by side in the inside of the shell module 1, and the transmission and induction assembly 6 is installed on the surface of the card insertion assembly 4. The transmission and induction assembly 6 is used for in-place induction work after the video card module 2 is inserted.

[0037] In implementation, the video card module 2 is inserted from one side, and when inserted, the video card module 2 penetrates the front panel 13 into the card assembly 4, and during the insertion process, the module guide strips 22 on both sides of the video card shell 21 and the guide grooves 44 on the inner wall of the card rack 41 are matched to guide each other.

[0038] Further, as shown in Figure 2 and Figure 5 , the card reading assembly 5 comprises a power supply fixing plate 51, a card reader PCB 52 and a cooling fan 53, the power supply fixing plate 51 is arranged inside the shell module 1, and the card reader PCB 52 is mounted on the surface of the power supply fixing plate 51, and four cooling fans 53 are arranged on the surface of the power supply fixing plate 51, which are used for cooling the power supply fixing plate 51 and the card reader PCB 52.

[0039] Among them, the power supply fixing plate 51 is the power access point of the flight recorder, responsible for introducing power from the main power supply system of the aircraft, and distributing to each module inside the recorder that needs power, which ensures that each part obtains stable and reliable working voltage; cooperate with the installation of the connecting terminal, plug or wiring panel, used to realize the connection with the main cable bundle or the airborne power supply system, avoid the damage of power supply peak or abnormal interference to the internal circuit; the card reader PCB 52 of the application is mainly responsible for reading, writing, encrypting and backing up flight data from the memory card, ensuring the safety, real-time and integrity of the data, and supporting fault detection, data transmission and equipment maintenance and other functions, which is the core component to ensure flight data recording and analysis.

[0040] Further, as shown in Figure 3 and Figure 6 , the video card module 2 comprises a video card shell 21 to a collection sub-board PCB 29, the inside of the video card shell 21 is provided with a collection mainboard PCB 23, a video card receiving end 24, a video card transmitting end 25, a power control board PCB 26, a magnetic core 27 and a collection sub-board PCB 29 by screws; the surface of the video card shell 21 is provided with a positioning guide sleeve 28 by bolts, one end of the positioning guide sleeve 28 penetrates the video card shell 21, and the video card shell 21 is positioned by the guide positioning pin 42 and the positioning guide sleeve 28 when inserted into the card rack 41; the left and right sides of the video card shell 21 are provided with module guide strips 22 by bolts, which are used for limiting the video card shell 21 when inserted into the card assembly 4.

[0041] The main board PCB 23 collects, processes and manages flight data, performs signal conversion, clock synchronization, data storage and communication, and performs data verification, encryption and system monitoring to ensure that the flight recorder records and stores all important flight parameters stably and reliably during flight. The secondary board PCB 29 collects and stores various flight data generated during flight to ensure data integrity, security, reliability and efficient storage. Through redundant storage, encryption protection, data compression and other technologies, the data can be extracted and analyzed after flight, providing support for flight safety, event investigation and flight performance evaluation.

[0042] The video card transmitting end 25 of the application mainly functions to process and transmit video signals during flight, store image data, enhance the completeness of flight records, improve flight safety, and provide important video evidence for accident investigation. The video card receiving end 24 mainly functions to receive, decode and store video signals, ensure synchronization of video and flight data, and provide image data support for flight process monitoring, fault troubleshooting, accident investigation and the like. The magnetic core 27 mainly functions to suppress electromagnetic interference, filter signals, stabilize power supply, reduce signal reflection and improve system anti-interference capability, thereby ensuring the accuracy, stability and reliability of flight data records.

[0043] Further, as shown in Figure 4 and Figure 7 , the card insertion assembly 4 includes a card insertion frame 41 and a guide positioning pin 42. The card insertion frame 41 is installed inside the shell module 1, and the surface of the card insertion frame 41 is provided with the guide positioning pin 42, which is used for positioning the video card module 2 after insertion. The inside of the card insertion assembly 4 further includes a front baffle 43, which is hingedly connected to the surface of the card insertion frame 41. The front baffle 43 is used for protection inside the shell module 1. The left and right sides of the inner wall of the card insertion frame 41 are provided with guide grooves 44, which cooperate with the module guide strip 22 to limit the insertion of the video card module 2 into the card insertion assembly 4. The surface of the card insertion frame 41 is further provided with a POW data collection board 45.

[0044] The rear panel of the card holder 41 is also equipped with an electrical interface integrated area, a power supply interface power input, a data bus interface (connected to the avionics system, such as ARINC 429, MIL-STD-1553, RS-422, etc., a backup power supply interface such as an emergency battery connection), and bears the function of fixing the recorder on the aircraft body or equipment rack; designed with mounting holes, support interfaces, positioning grooves, etc., to be firmly installed in the aircraft body structure, ensuring that the recorder will not loosen during flight due to vibration or impact; and the POW data acquisition board 45 is mainly used for collecting, processing, converting and storing data from sensors and devices, and through real-time monitoring, signal adjustment and data analysis, supporting stable operation and fault diagnosis of the device.

[0045] Further, as shown in Figure 2 and Figure 8 The transmission and induction assembly 6 includes a module induction rotating shaft 61, a top-open optical coupling inductor 62, an induction seat 63, an induction baffle 64, and a rotary optical coupling inductor 65; the module induction rotating shaft 61 is rotatably connected to the surface of the card holder 41, the surface of the card holder 41 is provided with the induction seat 63, and the surface of the induction seat 63 is provided with the top-open optical coupling inductor 62 through bolts, and the top-open optical coupling inductor 62 cooperates with the module induction rotating shaft 61 to realize signal exchange, power transmission or data connection; the surface of the card holder 41 is provided with the rotary optical coupling inductor 65, the induction baffle 64 is hingedly connected to the surface of the card holder 41 through an induction pin 641, one side of the induction baffle 64 penetrates through the card holder 41 and extends into the guide sink 44, and when the video card module 2 is pushed into the card holder 41, the module guide bar 22 will open the induction baffle 64, and the induction baffle 64 will trigger the rotary optical coupling inductor 65 after being opened; one end of the surface of the module induction rotating shaft 61 is provided with a knob handle 611, and the surface of the module induction rotating shaft 61 is provided with a spring retainer 612, one end of the spring retainer 612 is in contact with the card holder 41, and the other end is in contact with the surface of the module induction rotating shaft 61.

[0046] The top-open optical coupling inductor 62 and the rotary optical coupling inductor 65 are both ITR8402 type optical coupling inductors, which play an important role in signal isolation, data transmission and protection; the optical coupling inductor is an electronic component that converts input signals into optical signals and then converts output signals from optical signals, used for electrical isolation to ensure safety and reliability between different circuits; mainly through signal isolation, high voltage protection, data transmission and reduction of electromagnetic interference, to ensure that the device works stably, safely and reliably during flight.

[0047] The induction baffle 64 of the application is used to open the baffle when the video card module 2 is pushed into the specified track, triggering the light coupling inductor to receive the relevant instructions; signal induction and control, module alignment and positioning, preventing misoperation or interference; improving anti-interference and electromagnetic shielding, enhancing the reliability and safety of the equipment; the module induction rotating shaft 61 can realize rotation or rotation, which is used for signal transmission or electrical connection between multiple modules; through rotation, the rotating shaft helps the module to dock to other systems, realizing signal exchange, power transmission or data connection; such design can simplify the system structure, reduce the number of fixed interfaces, and improve the flexibility and scalability of the system; control the rotation and positioning of the module; increase the mechanical flexibility and modular design to ensure the stability of signal transmission; and the spring retaining ring 612 can provide multiple functions such as fixation, anti-loosening, shock absorption and simplified assembly, which can ensure the stability, safety and maintenance convenience of the equipment.

[0048] Working principle: when in use, the video card module 2 is inserted from one side, and the video card module 2 will penetrate the front panel 13 into the card insertion assembly 4 during insertion. The module guide strip 22 on both sides of the video card shell 21 and the guide groove 44 on the inner wall of the card holder 41 cooperate with each other to guide the insertion process. After the video card module 2 is inserted, it is positioned by the positioning guide sleeve 28 and the guide positioning pin 42 in interference fit to prevent misalignment or loosening of the components. At the same time, the insertion of the module guide strip 22 will squeeze the induction baffle 64, causing the induction baffle 64 to rotate. When the video card module 2 is inserted into position, the induction baffle 64 will be clamped into the groove of the module guide strip 22, and the rotary light coupling inductor 65 will be triggered, indicating that the video card module 2 has been inserted into position.

[0049] After the video card module 2 is inserted, the rotating knob handle 611 is rotated, which will drive the module induction rotating shaft 61 to rotate. When the module induction rotating shaft 61 rotates, it will cooperate with the pop-up light coupling inductor 62 to realize signal exchange, power transmission or data connection. Then the whole instrument is powered by the power supply fixed plate 51 to realize operation. When running, the main board PCB 23 will collect, process and manage flight data, and the auxiliary board PCB 29 will collect and store various flight data generated during flight. The POW data collection board 45 is used to collect, process, convert and store data from sensors and devices. Then the card reader PCB 52 reads, writes, encrypts and backs up flight data from the memory card to ensure the safety, real-time and integrity of the data. Finally, the whole instrument is cooled by the cooling fan 53.

[0050] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. A flight data recorder comprising a housing module (1), characterized in that: The inside of the shell module (1) is provided with a card reader module (3), and one side of the card reader module (3) is provided with a video card module (2); the card reader module (3) comprises a card inserting assembly (4), a card reading assembly (5) and a transmission and sensing assembly (6); the card inserting assembly (4) and the card reading assembly (5) are arranged side by side in the inside of the shell module (1); the surface of the card inserting assembly (4) is provided with the transmission and sensing assembly (6), which is used for sensing the position of the video card module (2) after being inserted. The card inserting assembly (4) comprises a card inserting frame (41) and a guide positioning pin (42); the card inserting frame (41) is arranged in the inside of the shell module (1); the surface of the card inserting frame (41) is provided with the guide positioning pin (42), which is used for positioning the video card module (2) after being inserted. The transmission and sensing assembly (6) comprises a module sensing rotating shaft (61), a top-opening optical coupling sensor (62), a sensing fixed seat (63), an sensing blocking piece (64) and a rotary optical coupling sensor (65); the surface of the card inserting frame (41) is rotatably connected with the module sensing rotating shaft (61); the surface of the card inserting frame (41) is provided with the sensing fixed seat (63); the surface of the sensing fixed seat (63) is provided with the top-opening optical coupling sensor (62) through bolts; the top-opening optical coupling sensor (62) cooperates with the module sensing rotating shaft (61) to realize signal exchange, power transmission or data connection.

2. A flight data recorder according to claim 1, characterised in that: The card reading assembly (5) comprises a power supply fixed plate (51), a card reader PCB (52) and a cooling fan (53); the power supply fixed plate (51) is arranged in the inside of the shell module (1); the surface of the power supply fixed plate (51) is provided with the card reader PCB (52); the surface of the power supply fixed plate (51) is provided with four cooling fans (53), which are used for cooling the power supply fixed plate (51) and the card reader PCB (52).

3. A flight data recorder according to claim 1, wherein: The shell module (1) is formed by a lower cover plate (11), an upper cover plate (12) and a front panel (13); the lower cover plate (11) and the upper cover plate (12) are fixedly connected with the card inserting frame (41) and the power supply fixed plate (51) through screws; and the front panel (13) is fixedly connected with the card inserting frame (41) through screws.

4. A flight data recorder according to claim 1, wherein: The video card module (2) comprises a video card shell (21) to a collection sub-plate PCB (29); the inside of the video card shell (21) is provided with a collection main plate PCB (23), a video card receiving end (24), a video card transmitting end (25), a power supply control plate PCB (26), a magnetic core (27) and the collection sub-plate PCB (29) through screws.

5. A flight data recorder according to claim 4, wherein: The surface of the video card shell (21) is provided with a positioning guide sleeve (28) through bolts; one end of the positioning guide sleeve (28) penetrates the video card shell (21); and the video card shell (21) is positioned by the guide positioning pin (42) and the positioning guide sleeve (28) when being inserted into the card inserting frame (41).

6. A flight data recorder according to claim 5, wherein: The left and right sides of the video card shell (21) are provided with module guide strips (22) through bolt mounting, which are used for limiting the video card shell (21) when being inserted into the plug-in card assembly (4).

7. A flight data recorder according to claim 1, wherein: The plug-in card assembly (4) further comprises a front baffle (43) hinged to the surface of the plug-in card frame (41) through a shaft, which is used for protecting the inside of the shell module (1).

8. A flight data recorder according to claim 1, characterized in that: The left and right sides of the inner wall of the plug-in card frame (41) are provided with guide grooves (44) cooperating with the module guide strips (22) for limiting the video card module (2) when being inserted into the plug-in card assembly (4); the surface of the plug-in card frame (41) is further provided with a POW data acquisition board (45).

9. A flight data recorder according to claim 1, wherein: The surface of the plug-in card frame (41) is provided with a rotary light-sensitive sensor (65), and the sensing baffle (64) is hinged to the surface of the plug-in card frame (41) through a sensing pin (641), one side of the sensing baffle (64) penetrates the plug-in card frame (41) and extends into the guide groove (44), and when the video card module (2) is pushed into the plug-in card frame (41), the module guide strip (22) will push open the sensing baffle (64), and the sensing baffle (64) will trigger the rotary light-sensitive sensor (65) after being pushed open.

10. A flight data recorder according to claim 1, wherein: One end of the surface of the module sensing shaft (61) is provided with a rotary knob (611), and the surface of the module sensing shaft (61) is provided with a spring retainer (612), one end of which is in contact with the plug-in card frame (41), and the other end is in contact with the surface of the module sensing shaft (61).

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