Data recording device and method for automatic driving system

Abstract

The invention provides a data recording device and method for an automatic driving system, and relates to the field of automatic driving system data storage. The data recording device for the automatic driving system comprises an acquisition module, a processing module, a storage module, a communication module and a shell, the multiple fans are installed on the two sides of the interior of the shell in a sliding mode respectively, and the fans located on the two sides of the interior of the shell are arranged in a staggered mode. According to the data recording device for the automatic driving system, the two fans are arranged at the two ends of the shell in a staggered mode, so that air can be blown from the upper side and the lower side of the circuit board, the two sides of the circuit board can receive cold air, meanwhile, the whole circuit board can act with the cold air, heat dissipation is more uniform, and the service life of the circuit board is prolonged. The positions of the two fans are regularly adjusted through the moving device, so that different positions at the two ends of the circuit board can be alternately affected by cold air, and the overall heat dissipation effect of the circuit board is improved.

Description

Technical Field

[0001] The present invention relates to the field of data storage for autonomous driving systems, and particularly to a data recording device and method for an autonomous driving system. Background Art

[0002] The data recording device of an autonomous driving system is a crucial component in autonomous driving technology, which is used to record information such as the running state of the vehicle and sensor data in real time. In case of an accident or abnormal situation, it can accurately restore the event process, help analyze the cause, improve the system design, and enhance the safety of autonomous driving.

[0003] To ensure that the device can maintain a normal working temperature during long-term operation, a heat dissipation component needs to be set in the data recording device of the autonomous driving system. In the prior art, the heat dissipation methods include setting heat sinks on the housing and setting fans for heat dissipation. The setting of the fans includes setting the fans on the top or side of the installation housing. When installed on the top, the airflow generated by the fan usually directly acts on the electrical components on the upper side of the circuit board, and the airflow usually cannot fully act on the bottom of the circuit board, resulting in poor heat dissipation effect on the bottom of the circuit board. For the fans installed on the side, the airflow usually flows from one side of the circuit board to the other side. After the airflow exchanges heat with the electrical components near the fan, it then acts on the electrical components far from the fan, so the heat dissipation effect of the electrical components far from the fan is poor. Therefore, there is still room for improvement in the heat dissipation efficiency of the data recording device of the autonomous driving system.

[0004] Therefore, it is necessary to provide a data recording device for an autonomous driving system to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a data recording device method for an autonomous driving system, which solves the problem that in the prior art, after the airflow exchanges heat with the electrical components near the fan and then acts on the electrical components far from the fan, the heat dissipation effect of the electrical components far from the fan is poor.

[0006] To solve the above technical problems, the data recording device for an autonomous driving system provided by the present invention includes: an acquisition module, a processing module, a storage module, and a communication module, and further includes: a housing; A plurality of fans, the plurality of fans are respectively slidably installed on both sides inside the housing, and the fans located on both sides inside the housing are arranged in a staggered manner, and a ventilation cavity is formed between the fans and the inner wall of the housing; A plurality of first ventilation holes, the plurality of first ventilation holes are staggeredly opened on both sides of the top of the housing; A plurality of second ventilation holes are staggeredly formed on both sides of the bottom of the housing, and the number of the fans, the first ventilation holes and the second ventilation holes is the same; A moving device is configured to drive the fan to move horizontally so that the first ventilation hole or the second ventilation hole communicates with the ventilation cavity on the corresponding side.

[0007] Preferably, the data recording device for the autonomous driving system further includes two partition plates which are respectively installed on both sides of the inner wall of the housing, and the partition plates are used to separate the first ventilation holes and the second ventilation holes on the same side.

[0008] Preferably, the data recording device for the autonomous driving system further includes a plurality of dust-proof nets which are correspondingly installed inside the first ventilation holes and the second ventilation holes.

[0009] Preferably, the data recording device for the autonomous driving system further includes two first plugging components which are respectively located on both sides inside the housing. Each first plugging component includes a bottom plate, a top plate, a connecting rope, a driving member and a plurality of guiding rollers. The bottom plate is slidably installed on the bottom of the inner wall of the housing and is arranged adjacent to the second ventilation hole. The top plate is slidably installed on the top inside the housing and is arranged adjacent to the first ventilation hole. One end of the connecting rope is connected to the top plate, and the other end of the connecting rope is connected to the bottom plate through the guiding rollers. The driving member is configured to drive the bottom plate to move towards the second ventilation hole.

[0010] Preferably, the data recording device for the autonomous driving system further includes a second plugging component which includes a lifting cylinder, a sealing plate and an abutting plate. The lifting cylinder is installed on the housing, the sealing plate is installed at the output end of the lifting cylinder, the abutting plate is installed on the housing, the sealing plate and the abutting plate are respectively located on the upper and lower sides of the interface reserved hole, and a U-shaped frame is arranged on one side of the sealing plate facing the housing.

[0011] Preferably, the top of the sealing plate is provided as an inclined surface.

[0012] Preferably, the moving device includes a support shell, a U-shaped frame, a pushing cylinder, a connecting frame and a driving shaft. The support shell is installed at the bottom of the housing, the pushing cylinder is installed in the support shell through the U-shaped frame, the connecting frame is installed at the output end of the pushing cylinder, the bottom end of the driving shaft is installed on the connecting frame, a first assembly hole is formed at the bottom of the fan, and the top end of the driving shaft passes through the housing through a strip-shaped hole and is inserted into the first assembly hole.

[0013] Preferably, the driving member is a second assembly hole formed in the bottom plate. The moving device further includes a driving block mounted on the connecting frame and disposed adjacent to the driving shaft. The length of the driving shaft is greater than that of the driving block. The U-shaped frame is vertically slidably disposed in the support shell. The second blocking assembly further includes two transmission frames, and one U-shaped frame is connected to the sealing plate through a corresponding transmission frame.

[0014] Preferably, a sealing cloth is penetrated and fixedly connected to the driving shaft, and two ends of the sealing cloth are respectively connected to two ends of the strip-shaped hole.

[0015] The present invention also provides a data recording method for an autonomous driving system, using the data recording device for an autonomous driving system as described above, including the following steps: S1: Collect the environmental perception data of each sensor of the autonomous driving vehicle, the state information of the vehicle, and the decision-making instructions and system diagnosis information from the controller. S2: Process the collected original data. S3: Locally store the processed data and upload it to the cloud for storage. S4: Manage the stored data.

[0016] Compared with the related art, the data recording device for an autonomous driving system provided by the present invention has the following beneficial effects: The present invention provides a data recording device for an autonomous driving system. By arranging two fans at both ends of the housing and staggering them, the air can be blown from the upper and lower sides of the circuit board, so that both sides of the circuit board can be affected by the cold air, avoiding blowing air only from one side, resulting in the electronic components on the other side only acting with the heated air, leading to poor heat dissipation effect. At the same time, the whole circuit board can act with the cold air, making the heat dissipation more uniform. Among them, the positions of the two fans can be adjusted regularly through the moving device, such as Figure 3 and Figure 4 , so that different positions at both ends of the circuit board can be alternately affected by the cold air, improving the overall heat dissipation effect of the circuit board; And by staggering the first ventilation holes on both sides of the top of the housing and the second ventilation holes on both sides of the bottom of the housing, as shown by the airflow arrows in Figure 3 , the air flows in from the first ventilation holes at the top and finally discharges from the second ventilation holes at the bottom; when Figure 4 , according to the airflow arrows, the air flows in from the second ventilation holes at the bottom and discharges from the first ventilation holes at the top, so that the entry of the cold air and the discharge of the heated air after heat exchange are in two directions, avoiding the heated air after heat exchange being directly introduced into the housing by the fan again, resulting in low heat exchange efficiency for the electronic components. Description of the Drawings

[0017] Figure 1 Schematic structural diagram of the housing of the data recording device for an autonomous driving system provided by the present invention; Figure 2 Schematic structural diagram of the interior of the housing provided by the present invention; Figure 3 Schematic diagram of the state where air flow enters the second ventilation hole from the first ventilation hole when the fan provided by the present invention is working; Figure 4 Schematic diagram of the state where air flow enters the first ventilation hole from the second ventilation hole when the fan provided by the present invention is working; Figure 5 is Figure 2 Schematic structural diagram of the housing shown after removing the fan; Figure 6 Cross-sectional view of the housing provided by the present invention; Figure 7 is Figure 6 Schematic enlarged view of part A shown; Figure 8 Schematic structural diagram of the mobile device provided by the present invention; Figure 9 Schematic diagram of the lifting cylinder driving the sealing plate to abut against the abutting plate provided by the present invention; Figure 10 Schematic structural diagram of the driving block inserted into the second assembly hole provided by the present invention.

[0018] Reference numerals in the figures: 1. Housing; 101. Interface reserved hole; 102. Slide bar; 103. Strip-shaped hole; 2. Fan; 21. First assembly hole; 31. First ventilation hole; 32. Second ventilation hole; 4. Mobile device; 41. Support shell; 42. U-shaped frame; 43. Push cylinder; 44. Connecting frame; 45. Driving shaft; 46. Driving block; 5. Dust-proof net; 6. First plugging assembly; 61. Bottom plate; 62. Top plate; 63. Connecting rope; 64. Guide roller; 65. Support rod; 66. Second assembly hole; 7. Second plugging assembly; 71. Lifting cylinder; 72. Sealing plate; 73. Abutting plate; 74. Transmission frame; 8. Sealing cloth; 9. Partition board; 10. Heat-conducting sheet; 20. Mounting rack. Detailed Description of the Invention

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention provides a data recording device for an autonomous driving system.

[0021] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the data recording device for the autonomous driving system includes: an acquisition module, a processing module, a storage module, and a communication module, and further includes: a housing 1; A plurality of fans 2, and the plurality of fans 2 are respectively slidably installed on both sides inside the housing 1, and the fans 2 located on both sides inside the housing 1 are arranged in a staggered manner, and a ventilation cavity is formed between the fans 2 and the inner wall of the housing 1; A plurality of first ventilation holes 31, and the plurality of first ventilation holes 31 are staggeredly opened on both sides of the top of the housing 1; A plurality of second ventilation holes 32, and the plurality of second ventilation holes 32 are staggeredly opened on both sides of the bottom of the housing 1, and the number of the fans 2, the first ventilation holes 31, and the second ventilation holes 32 is the same; A moving device 4, and the moving device 4 is used to drive the fans 2 to move horizontally so that the first ventilation holes 31 or the second ventilation holes 32 communicate with the ventilation cavity on the corresponding side.

[0022] In this embodiment, the acquisition module, the processing module, the storage module, the communication module, etc. are integrated on a circuit board and installed inside the housing 1. Installation posts are provided inside the housing 1 for installing the circuit board. There is a ventilation gap between the bottom of the circuit board and the bottom of the inner wall of the housing 1. When the fans 2 blow from the side to the circuit board, the upper electrical components of the circuit board and the bottom of the circuit board can be blown for heat dissipation at the same time; In this example, the number of the fans 2 is two, and the air outlet area of the two staggeredly arranged fans 2 is adapted to the width of the circuit board; of course, the number of the fans 2 can also be set to other numbers.

[0023] Please refer to Figure 2 and Figure 3, by setting two fans 2 at both ends of the housing 1 and arranging them in a staggered manner, it is possible to blow air from the upper and lower sides of the circuit board, so that both sides of the circuit board can be exposed to cold air, avoiding blowing air from only one side, which causes the electronic components on the other side to only interact with the heated air, resulting in poor heat dissipation. At the same time, the entire circuit board can interact with the cold air, making the heat dissipation more uniform. Among them, the positions of the two fans 2 are adjusted regularly through the moving device 4, such as Figure 3 and Figure 4 , so that different positions at both ends of the circuit board can be alternately exposed to cold air, improving the overall heat dissipation effect of the circuit board; And by arranging the first ventilation holes 31 in a staggered manner on both sides of the top of the housing 1 and the second ventilation holes 32 in a staggered manner on both sides of the bottom of the housing 1, as Figure 3 shown by the airflow arrows, the airflow enters from the first ventilation holes 31 at the top and finally exits from the second ventilation holes 32 at the bottom; when as Figure 4 , according to the airflow arrows, the airflow enters from the second ventilation holes 32 at the bottom and exits from the first ventilation holes 31 at the top. Thus, the entry of cold air and the discharge of the heated air after heat exchange are in two directions, avoiding the heated air after heat exchange being directly introduced into the housing 1 by the fan 2 again, resulting in low heat exchange efficiency for the electronic components.

[0024] Among them, further, by arranging the two fans 2, the two first ventilation holes 31, and the second ventilation holes 32 in a staggered manner, when the positions of the two fans 2 are switched each time, the relationship between the air intake or air outlet of the first ventilation holes 31 and the second ventilation holes 32 just changes accordingly. Thus, when dust-proof nets 5 are provided on the first ventilation holes 31 and the second ventilation holes 32, it is possible to blow and clean the dust on the dust-proof nets 5. For specific details, please refer to the following description.

[0025] Please refer to Figure 3 , as a preferred method of this embodiment, the data recording device for the autonomous driving system further includes two partitions 9, and the two partitions 9 are respectively installed on both sides of the inner wall of the housing 1. The partitions 9 are used to separate the first ventilation holes 31 and the second ventilation holes 32 on the same side.

[0026] By setting the partitions 9, as Figure 3 , the side of the fan 2 at the right end of the housing 1 will contact the partition 9, so as to avoid the hot air blown out by the fan 2 at the left end from entering through the air intake end of the fan 2. The left-end fan 2 and the partition 9 are arranged in the same way, so that the hot air blown out by the right-end fan 2 after heat exchange will not enter the air intake end of the left-end fan 2, and the hot air can only be discharged through the two second ventilation holes 32 respectively.

[0027] After the mobile device 4 switches the positions of the two fans 2, the other sides of the two fans 2 will continue to contact the partition 9. At this time, the hot air can only be discharged through the two first ventilation holes 31 respectively.

[0028] Please refer to Figure 1 and Figure 2 , as a preferred embodiment of this embodiment, the data recording device for the autonomous driving system further includes a plurality of dust-proof nets 5, and the plurality of dust-proof nets 5 are correspondingly installed inside the first ventilation holes 31 and the second ventilation holes 32.

[0029] Since dust is easily raised in the environment where the vehicle travels, by providing the dust-proof nets 5 on the first ventilation holes 31 and the second ventilation holes 32, it is possible to prevent dust from being sucked into the housing 1 when the fans 2 are working, and the dust adheres to the circuit board, affecting its operation.

[0030] Please refer to again Figure 3 and Figure 4 , in Figure 3 the state shown, the air flow enters through the first ventilation hole 31 and is discharged through the second ventilation hole 32. At this time, the air flow blown by the fan 2 can back-blow and clean dust and other impurities attached to the dust-proof net 5 located in the second ventilation hole 32. When the mobile device 4 switches the positions of the two fans 2, as Figure 4 , at this time the air flow is discharged through the first ventilation hole 31 and enters the housing 1 through the second ventilation hole 32. Thus, the air flow can back-blow and clean dust and other impurities attached to the dust-proof net 5 located in the first ventilation hole 31, so as to better maintain the ventilation of the dust-proof net 5 and greatly extend the replacement time of the dust-proof net 5.

[0031] Please refer to Figure 5 , as an alternative embodiment of this embodiment, the data recording device for the autonomous driving system further includes two first plugging components 6, and the two first plugging components 6 are respectively located on both sides inside the housing 1. The first plugging component 6 includes a bottom plate 61, a top plate 62, a connecting rope 63, a driving member and a plurality of guide rollers 64. The bottom plate 61 is slidably installed at the bottom of the inner wall of the housing 1 and is adjacent to the second ventilation hole 32. The top plate 62 is slidably installed at the top inside the housing 1 and is adjacent to the first ventilation hole 31. One end of the connecting rope 63 is connected to the top plate 62, and the other end of the connecting rope 63 is connected to the bottom plate 61 through the guide rollers 64. The driving member is used to drive the bottom plate 61 to move towards the second ventilation hole 32.

[0032] In this embodiment, when the partition 9 is provided, one end of the bottom plate 61 penetrates through the bottom of the partition 9; By setting the first plugging component 6, when an accident occurs to an autonomous vehicle, resulting in a fire or other situation in the vehicle, the first ventilation hole 31 and the second ventilation hole 32 are plugged by the first plugging component 6, so that the fire can be prevented from entering the housing 1 through the first ventilation hole 31 and the second ventilation hole 32 to burn and damage the circuit board, and the data of the vehicle during the accident cannot be obtained.

[0033] During plugging, the driving member drives the bottom plate 61 to move towards the second ventilation hole 32 to plug and limit the second ventilation hole 32. At the same time, the bottom plate 61 drives the top plate 62 to move towards the first ventilation hole 31 through the connecting rope 63 to plug the first ventilation hole 31.

[0034] Wherein, two guiding rollers 64 are provided, which are respectively installed at the top and below the side wall of the housing 1. After being guided by the two guiding rollers 64, the two ends of the connecting rope 63 are connected to the top plate 62 and the bottom plate 61 at a right angle.

[0035] Two support rods 65 are provided above both sides inside the housing 1, and the top plate 62 is sleeved on the support rods 65 to form a sliding assembly.

[0036] Wherein, preferably, a heat insulation layer is provided on the inner wall of the housing 1, so as to reduce the amount of external heat transferred into the housing 1 when a fire or other situation occurs in the vehicle.

[0037] Please refer to Figure 1 , as an alternative way of this embodiment, the data recording device for the autonomous driving system further includes a second plugging component 7. The second plugging component 7 includes a lifting cylinder 71, a sealing plate 72 and an abutting plate 73. The lifting cylinder 71 is installed on the housing 1, the sealing plate 72 is installed at the output end of the lifting cylinder 71, the abutting plate 73 is installed on the housing 1, the sealing plate 72 and the abutting plate 73 are respectively located on the upper and lower sides of the interface reserved hole 101, and a U-shaped frame is provided on one side of the sealing plate 72 facing the housing 1.

[0038] Wherein, after the circuit board is installed in the housing 1, the interfaces on the circuit board (such as power supply structure, USB interface, various sensor interfaces, bus interface) are correspondingly arranged with the interface reserved hole 101.

[0039] By setting the second plugging component 7, when an accident occurs to an autonomous vehicle, resulting in a fire or other situation in the vehicle, the lifting cylinder 71 pushes the sealing plate 72 upwards until it abuts against the abutting plate 73, and the U-shaped frame fits the housing 1. At this time, a closed space is formed between the U-shaped frame, the sealing plate 72, the abutting plate 73 and the housing 1, so that the fire can be prevented from entering the housing 1 through each interface line from the interface reserved hole 101 to burn and damage the circuit board.

[0040] Among them, the housing 1, the bottom plate 61, the top plate 62, the abutting plate 73, the sealing plate 72, the U-shaped frame, the support housing 41, the U-shaped bracket 42, etc. are all made of fireproof materials, such as flame-retardant engineering plastics, metal matrix composites (aluminum alloy plus flame-retardant coating, etc.).

[0041] Please refer to again Figure 1 , in this embodiment, the top of the sealing plate 72 is set to be an inclined surface.

[0042] By setting the top of the sealing plate 72 to be an inclined surface, a cutting knife part is formed at the top of the sealing plate 72. Thus, during the process of the top of the sealing plate 72 abutting against the abutting plate 73, the wires connected to the corresponding interfaces can be directly cut off, thereby preventing the fire from entering the housing 1 along each wire through the interface reserved hole 101 after the autonomous driving vehicle catches fire.

[0043] In other embodiments, a wire-disconnecting assembly can also be provided to first disassemble the wires connected to the corresponding interfaces, and then lift the sealing plate 72 to abut against the abutting plate 73 to block the interface reserved hole 101. The wire-disconnecting assembly includes an electric push rod and a clamping assembly. The clamping assembly clamps the wires. The electric push rod is installed on the housing 1, and the clamping assembly is installed at the output end of the electric push rod. The electric push rod pushes the clamping assembly to separate each wire from the corresponding interface.

[0044] Please refer to Figures 6 to 8 , as an alternative way of the present invention, the moving device 4 includes a support housing 41, a U-shaped bracket 42, a push cylinder 43, a connecting frame 44 and a driving shaft 45. The support housing 41 is installed at the bottom of the housing 1. The push cylinder 43 is installed in the support housing 41 through the U-shaped bracket 42. The connecting frame 44 is installed at the output end of the push cylinder 43. The bottom end of the driving shaft 45 is installed on the connecting frame 44. A first assembly hole 21 is formed at the bottom of the fan 2. The top end of the driving shaft 45 passes through the housing 1 through the strip-shaped hole 103 and is inserted into the first assembly hole 21.

[0045] In this embodiment, the number of the moving devices 4 is two, which are respectively located at both ends of the bottom of the housing 1.

[0046] When it is necessary to switch the positions of the two fans 2, the push cylinder 43 pushes the connecting frame 44, and the connecting frame 44 drives the corresponding fan 2 to switch positions through the driving shaft 45.

[0047] Among them, the first assembly hole 21 is formed on the support frame of the fan 2. A plurality of sliding rods 102 are installed at both sides inside the housing 1 at intervals up and down. The support frame of the fan 2 is sleeved on the sliding rods 102 to form a sliding assembly.

[0048] The push cylinder 43 and the lifting cylinder 71 are cylinders or hydraulic cylinders or electric push rods.

[0049] As another alternative of this embodiment, each mobile device 4 includes two fixing brackets and two electric push rods. The two electric push rods are horizontally installed at the bottom and top of the housing 1 through the corresponding fixing brackets, and the output ends of the two electric push rods are respectively connected to the bottom plate 61 and the top plate 62. The two electric push rods respectively control the movement of the bottom plate 61 and the top plate 62.

[0050] Please refer to Figures 5 to 7 , as an alternative of this embodiment, the driving member is the second assembly hole 66. The second assembly hole 66 is opened on the bottom plate 61. The mobile device 4 further includes a driving block 46. The driving block 46 is installed on the connecting frame 44 and is arranged adjacent to the driving shaft 45. The length value of the driving shaft 45 is greater than that of the driving block 46. The U-shaped frame 42 is vertically slidably arranged in the support shell 41. The second sealing assembly 7 further includes two transmission frames 74. One U-shaped frame 42 is connected to the sealing plate 72 through a corresponding one of the transmission frames 74.

[0051] In the initial state, the driving shaft 45 is inserted into the first assembly hole 21. The depth value of the first assembly hole 21 is greater than the length value of the driving shaft 45. At this time, the push cylinder 43 pushes the connecting frame 44, and the connecting frame 44 drives the fan 2 to move through the driving shaft 45, realizing the adjustment of the position of the fan 2; When the vehicle catches fire due to a collision or the like, when the lifting cylinder 71 lifts the sealing plate 72 to abut against the abutting plate 73 to seal and protect the interface reserved hole 101, the sealing plate 72 simultaneously drives the corresponding U-shaped frame 42 to lift through the transmission frames 74 on both sides, thereby driving the push cylinder 43 to lift, so that the driving block 46 pierces through the dust-proof net 5 and is inserted into the second assembly hole 66, and the driving shaft 45 continues to be deeply inserted into the first assembly hole 21. At this time, the push cylinder 43 pushes the connecting frame 44, and the bottom plate 61 can be driven through the driving block 46 to seal the second ventilation hole 32. The bottom plate 61 drives the top plate 62 to seal the first ventilation hole 31 through the connecting rope 63, and both ends of the U-shaped frame 42 are lifted to abut against the top of the support shell 41, so that a closed space is formed between the U-shaped frame 42 and the support shell 41 to protect the push cylinder 43.

[0052] Thus, during the process of the lifting cylinder 71 pushing up the abutting plate 73 to seal the interface reserved hole 101, the use state of the push cylinder 43 can be switched, so that the push cylinder 43 can be used to drive the bottom plate 61, and the bottom plate 61 and the top plate 62 seal the second ventilation hole 32 and the first ventilation hole 31.

[0053] Among them, as Figure 3, when the fan 2 is aligned with the first ventilation hole 31, the driving block 46 is aligned with the second assembly hole 66 at this time. When a vehicle accident occurs and catches fire, if the fan 2 is aligned with the second ventilation hole 32, the push cylinder 43 first drives the fan 2 to move to align with the first ventilation hole 31, and then the second blocking assembly 7 works to insert the driving block 46 into the corresponding second assembly hole 66.

[0054] The top of the driving block 46 is provided with a tip, and the side is provided with a knife surface, so as to facilitate piercing the dust-proof net 5, and when the moving device 4 drives the bottom plate 61 to move, the driving block 46 is convenient for cutting open the dust-proof net 5.

[0055] Among them, rectangular sliding holes are correspondingly opened at the top of the support shell 41 for the driving shaft 45 and the driving block 46. Of course, the top of the support shell 41 can also be an open setting.

[0056] Among them, temperature sensors are arranged on the housing 1 and on the vehicle body near the housing 1 to detect whether the vehicle catches fire, so as to facilitate controlling the work of the first blocking assembly 6 and the second blocking assembly 7.

[0057] Please refer to Figure 5 , a sealing cloth 8 is penetrated and fixedly connected on the driving shaft 45, and both ends of the sealing cloth 8 are respectively connected with both ends of the strip-shaped hole 103.

[0058] By arranging the sealing cloth 8, the strip-shaped hole 103 can be blocked to prevent air flow from entering or discharging from the housing 1 through the strip-shaped hole 103.

[0059] Among them, concave folding lines and convex folding lines are alternately arranged on the sealing cloth 8, so that when the driving shaft 45 moves towards one end of the strip-shaped hole 103, the sealing cloth 8 on one side of the driving shaft 45 is folded and retracted along the concave folding lines and convex folding lines, and the sealing cloth 8 on the other side is unfolded along the concave folding lines and convex folding lines.

[0060] And raised portions are arranged on both inner walls of the strip-shaped hole 103 on both sides of the sealing cloth 8 and on the upper and lower sides, which can support the sealing cloth 8 and improve the stability of the sealing cloth 8 during use.

[0061] Among them, a heat conduction sheet 10 is penetrated and arranged at the top of the housing 1, and the heat can be quickly exported through the heat conduction sheet 10, and the heat dissipation efficiency is improved in cooperation with the fan 2.

[0062] Mounting brackets 20 are installed on both sides of the housing 1 for assembling with the mounting positions on the vehicle body.

[0063] The working principle of the data recording device and method for the autonomous driving system provided by the present invention is as follows: Please refer to Figure 2 and Figure 3, by arranging two fans 2 at both ends of the housing 1 and arranging them in a staggered manner, it is possible to blow air from the upper and lower sides of the circuit board, so that both sides of the circuit board can be exposed to cold air, avoiding blowing air from only one side, causing the electronic components on the other side to only act with the heated air, resulting in poor heat dissipation effect. At the same time, the whole circuit board can act with cold air, making the heat dissipation more uniform. Among them, the positions of the two fans 2 can be adjusted regularly through the moving device 4, such as Figure 3 and Figure 4 , so that different positions at both ends of the circuit board can be alternately exposed to cold air, improving the overall heat dissipation effect of the circuit board; And by arranging the first ventilation holes 31 in a staggered manner on both sides of the top of the housing 1 and the second ventilation holes 32 in a staggered manner on both sides of the bottom of the housing 1, as Figure 3 shown by the airflow arrow, the airflow enters from the first ventilation holes 31 at the top and finally exits from the second ventilation holes 32 at the bottom; when as Figure 4 , according to the airflow arrow, the airflow enters from the second ventilation holes 32 at the bottom and exits from the first ventilation holes 31 at the top. Thus, the entry of cold air and the discharge of the heated air after heat exchange are in two directions, avoiding the heated air after heat exchange being directly introduced into the housing 1 by the fan 2 again, resulting in low heat exchange efficiency for the electronic components; And in Figure 3 the shown state, the airflow enters from the first ventilation holes 31 and exits from the second ventilation holes 32. At this time, the airflow blown by the fan 2 can back-blow and clean dust and other impurities attached to the dust-proof net 5 in the second ventilation holes 32. When the moving device 4 switches the positions of the two fans 2, such as Figure 4 , at this time the airflow exits from the first ventilation holes 31 and enters the housing 1 from the second ventilation holes 32. Thus, the airflow can back-blow and clean dust and other impurities attached to the dust-proof net 5 in the first ventilation holes 31, so as to better maintain the ventilation of the dust-proof net 5 and greatly extend the replacement time of the dust-proof net 5.

[0064] When an accident occurs to an autonomous vehicle, resulting in the vehicle catching fire or the like, the lifting cylinder 71 pushes the sealing plate 72 upward until it abuts against the abutting plate 73, and the U-shaped frame fits the housing 1. At this time, a closed space is formed between the U-shaped frame, the sealing plate 72, the abutting plate 73 and the housing 1, so as to avoid the fire from entering the housing 1 through each interface line from the interface reserved hole 101 and burning and damaging the circuit board; Meanwhile, the sealing plate 72 drives the U-shaped frame 42 to lift through the transmission frames 74 on both sides, thereby driving the push cylinder 43 to lift, enabling the driving block 46 to pierce through the dust-proof net 5 and insert into the second assembly hole 66, and the driving shaft 45 continues to insert into the first assembly hole 21. At this time, the push cylinder 43 pushes the connecting frame 44, and the bottom plate 61 can be driven by the driving block 46 to move towards the second ventilation hole 32 to block and limit the second ventilation hole 32. Meanwhile, the bottom plate 61 drives the top plate 62 to move towards the first ventilation hole 31 through the connecting rope 63 to block the first ventilation hole 31, thereby preventing the fire from entering the housing 1 through the first ventilation hole 31 and the second ventilation hole 32 to burn and damage the circuit board, and the vehicle data during the accident cannot be obtained.

[0065] The present invention also provides a data recording method for an autonomous driving system.

[0066] A data recording method for an autonomous driving system, using the data recording device for an autonomous driving system, includes the following steps: S1: Collect the environmental perception data of each sensor of the autonomous driving vehicle, the status information of the vehicle, as well as the decision-making instructions and system diagnosis information from the controller; S2: Process the collected raw data; S3: Locally store and upload the processed data to the cloud for storage; S4: Manage the stored data.

[0067] The information collection in S1 is achieved through the collection module. Among them, each sensor includes a camera, lidar, millimeter-wave radar, ultrasonic sensor, etc. The environmental perception data collected by these sensors is received, and the status information of the vehicle, such as vehicle speed, steering angle, acceleration, braking state, etc., as well as the decision-making instructions and system diagnosis information from the autonomous driving controller, are obtained by connecting to the vehicle's CAN bus or other types of buses; The collected raw data is processed through the processing module, which includes preliminary processing of the collected raw data, such as data format conversion, filtering, denoising, etc., to improve data quality, reduce the amount of data, and prepare for subsequent storage and analysis; and accurate timestamps are added to the data of different sensors to ensure that all data is synchronized in time, so that the sequence of each event during the vehicle operation can be accurately restored during subsequent analysis; The storage module includes local storage and cloud storage. The local storage uses a solid-state drive (SSD) or other large-capacity and high-reliability storage devices for long-term storage of a large amount of data; the communication module is used to regularly upload the information stored locally to the cloud storage, and when an accident occurs, the data collected immediately is selected to be uploaded from the local storage to the cloud storage.

[0068] The storage module also includes a management module, which is responsible for managing the storage medium, including operations such as data writing, reading, deletion, backup, and encryption, to ensure the efficient storage and secure access of data.

[0069] When uploading to the cloud platform, information about the vehicle (such as the license plate number), the location coordinates of the event occurrence, the time, etc. are marked. After uploading the collected information to the cloud platform, the management module can regularly delete the information stored locally to free up the local storage space and regularly delete the information stored in the cloud platform.

[0070] The above are only embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A data recording device for an autonomous driving system, comprising: The acquisition module, the processing module, the storage module and the communication module are characterized in that they also include: a housing; A plurality of fans, wherein the plurality of fans are slidably mounted on two sides of the interior of the housing, and the fans located on two sides of the interior of the housing are staggered, and a ventilation cavity is formed between the fans and the inner wall of the housing; A plurality of first ventilation holes, wherein the plurality of first ventilation holes are staggered and opened on both sides of the top of the shell; a plurality of second ventilation holes, wherein the plurality of second ventilation holes are staggeredly opened on both sides of the bottom of the housing, and the number of the fan, the first ventilation holes and the second ventilation holes is the same; A moving device is used to drive the fan to move horizontally so that the first ventilation hole or the second ventilation hole is connected to the ventilation cavity on the corresponding side.

2. The data recording device for an automatic driving system according to claim 1, characterized in that: The data recording device for the automatic driving system also includes two partitions, which are respectively installed on both sides of the inner wall of the shell, and the partitions are used to separate the first ventilation hole and the second ventilation hole located on the same side.

3. The data recording device for an automatic driving system according to claim 1, characterized in that: The data recording device for the automatic driving system further includes a plurality of dustproof nets, and the plurality of dustproof nets are correspondingly installed inside the first ventilation hole and the second ventilation hole.

4. The data recording device for an automatic driving system according to claim 1, characterized in that: The data recording device for the automatic driving system also includes two first blocking components, which are respectively located on both sides of the shell, and the first blocking components include a bottom plate, a top plate, a connecting rope, a driving member and a plurality of guide rollers. The bottom plate is slidably mounted on the bottom of the inner wall of the shell and is arranged adjacent to the second ventilation hole, and the top plate is slidably mounted on the top of the shell and is arranged adjacent to the first ventilation hole. One end of the connecting rope is connected to the top plate, and the other end of the connecting rope is connected to the bottom plate through the guide roller, and the driving member is used to drive the bottom plate to move toward the second ventilation hole.

5. The data recording device for an automatic driving system according to claim 4, characterized in that: The data recording device for the automatic driving system also includes a second blocking component, which includes a lifting cylinder, a sealing plate and an abutment plate. The lifting cylinder is installed on the shell, the sealing plate is installed on the output end of the lifting cylinder, and the abutment plate is installed on the shell. The sealing plate and the abutment plate are respectively located on the upper and lower sides of the interface reserved hole, and a U-shaped frame is provided on the side of the sealing plate facing the shell.

6. The data recording device for an automatic driving system according to claim 5, characterized in that: The top of the sealing plate is arranged as an inclined surface.

7. The data recording device for an automatic driving system according to claim 5, characterized in that: The moving device includes a supporting shell, a U-shaped frame, a push cylinder, a connecting frame and a driving shaft. The supporting shell is installed at the bottom of the shell, the push cylinder is installed in the supporting shell through the U-shaped frame, the connecting frame is installed at the output end of the push cylinder, and the bottom end of the driving shaft is installed on the connecting frame. A first assembly hole is opened at the bottom of the fan, and the top end of the driving shaft passes through the shell through a strip hole and is plugged into the first assembly hole.

8. The data recording device for an automatic driving system according to claim 7, characterized in that: The driving member is a second assembly hole, and the second assembly hole is opened on the bottom plate. The moving device also includes a driving block, and the driving block is installed on the connecting frame and is arranged adjacent to the driving shaft. The length of the driving shaft is greater than the driving block. The U-shaped frame is vertically slidably arranged in the supporting shell. The second blocking assembly also includes two transmission frames, and one of the U-shaped frames is connected to the sealing plate through a corresponding one of the transmission frames.

9. The data recording device for an automatic driving system according to claim 7, characterized in that: A sealing cloth passes through and is fixedly connected to the driving shaft, and two ends of the sealing cloth are respectively connected to two ends of the strip hole.

10. A data recording method for an automatic driving system, characterized in that: Using the data recording device for an automatic driving system according to any one of claims 1 to 9 comprises the following steps: S1: Collects environmental perception data from the sensors of the autonomous vehicle, vehicle status information, and decision instructions and system diagnostic information from the controller; S2: Process the collected raw data; S3: Stores processed data locally and uploads it to cloud storage; S4: Manage the stored data.

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