A data recording device and method for an autonomous driving system

Abstract

The present invention provides a data recording device and method for an autonomous driving system, relating to the field of data storage of autonomous driving systems. The data recording device for an autonomous driving system includes: a collection module, a processing module, a storage module, and a communication module, and further includes: a housing; a plurality of fans, and 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. The data recording device for an autonomous driving system provided by the present invention arranges two fans at both ends of the housing and in a staggered manner, so that air can be blown from the upper and lower sides of the circuit board, both sides of the circuit board can be affected by cold air, and 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 are periodically adjusted by a moving device, 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.

Description

Technical Field

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

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

[0003] To ensure that the device can maintain a normal operating 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. For the setting of the fans, the fans can be set 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 close to the fan side, it then acts on the electrical components far from the fan side, resulting in poor heat dissipation effect on the electrical components far from the fan side. 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 for an autonomous driving system, which solves the problem that in the prior art, after the airflow exchanges heat with the electrical components close to the fan side and then acts on the electrical components far from the fan side, the heat dissipation effect of the electrical components far from the fan side is poor.

[0006] To solve the above technical problems, the data recording device for an autonomous driving system provided by the present invention includes: a collection module, a processing module, a storage module, and a communication module, and further includes: a housing;

[0007] 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;

[0008] A plurality of first ventilation holes, the plurality of first ventilation holes are staggeredly opened on both sides of the top of the housing;

[0009] A plurality of second ventilation holes, the plurality of second ventilation holes are staggeredly arranged 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;

[0010] A moving device, the moving device is used 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.

[0011] Preferably, the data recording device for the autonomous driving system further includes two partition plates, the two partition plates 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.

[0012] Preferably, the data recording device for the autonomous driving system further includes a plurality of dust-proof nets, and the plurality of dust-proof nets are correspondingly installed inside the first ventilation holes and the second ventilation holes.

[0013] Preferably, the data recording device for the autonomous driving system further includes two first plugging components, the two first plugging components are respectively located on both sides inside the housing, the 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 adjacent to the second ventilation hole, the top plate is slidably installed on the top inside the housing and is adjacent to the first ventilation hole, one end of the connecting rope is connected to the top plate, the other end of the connecting rope is connected to the bottom plate through the guiding rollers, and the driving member is used to drive the bottom plate to move towards the second ventilation hole.

[0014] Preferably, the data recording device for the autonomous driving system further includes a second plugging component, the second plugging component 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 the side of the sealing plate facing the housing.

[0015] Preferably, the top of the sealing plate is set as an inclined surface.

[0016] Preferably, the moving device includes a support shell, a U-shaped frame, a push cylinder, a connecting frame and a driving shaft, the support shell is installed at the bottom of the housing, the push cylinder is installed in the support shell through the U-shaped frame, the connecting frame is installed at the output end of the push cylinder, 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 housing through a strip-shaped hole and is inserted into the first assembly hole.

[0017] Preferably, the driving member is a second assembly hole opened on the bottom plate. The moving device further includes a driving block installed on the connecting frame and arranged adjacent to the driving shaft. The length value of the driving shaft is greater than that of the driving block. The U-shaped frame is vertically slidably arranged in the support shell. The second sealing assembly further includes two transmission frames, and one U-shaped frame is connected to the sealing plate through a corresponding transmission frame.

[0018] Preferably, a sealing cloth is penetrated and fixedly connected to the driving shaft, and both ends of the sealing cloth are respectively connected to both ends of the strip-shaped hole.

[0019] 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:

[0020] S1: Collect the environmental perception data of each sensor of the autonomous driving vehicle, the state information of the vehicle, as well as the decision-making instructions and system diagnosis information from the controller.

[0021] S2: Process the collected raw data.

[0022] S3: Locally store the processed data and upload it to the cloud for storage.

[0023] S4: Manage the stored data.

[0024] Compared with the related art, the data recording device for an autonomous driving system provided by the present invention has the following beneficial effects:

[0025] 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, 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 whole circuit board can interact 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 exposed to cold air, improving the overall heat dissipation effect of the circuit board;

[0026] 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 airflow enters through the first ventilation holes at the top and finally exits through the second ventilation holes at the bottom; when as Figure 4When, according to the flow arrow of the air current, the air current enters from the second ventilation hole at the bottom and is discharged from the first ventilation hole at the top, so that the entry of the cold air and the discharge of the hot air after heat exchange are in two directions, avoiding the hot air after heat exchange being directly introduced into the shell by the fan again, resulting in low heat exchange efficiency for the electronic components. Brief Description of the Drawings

[0027] Figure 1 Structural schematic diagram of the housing of the data recording device for an autonomous driving system provided by the present invention;

[0028] Figure 2 Structural schematic diagram inside the housing provided by the present invention;

[0029] Figure 3 Schematic diagram of the state where the air current enters from the first ventilation hole and is discharged from the second ventilation hole when the fan provided by the present invention is working;

[0030] Figure 4 Schematic diagram of the state where the air current enters from the second ventilation hole and is discharged from the first ventilation hole when the fan provided by the present invention is working;

[0031] Figure 5 is Figure 2 Structural schematic diagram of the housing shown after removing the fan;

[0032] Figure 6 Cross-sectional view of the housing provided by the present invention;

[0033] Figure 7 is Figure 6 Enlarged schematic diagram of part A shown;

[0034] Figure 8 Structural schematic diagram of the mobile device provided by the present invention;

[0035] Figure 9 Schematic diagram of the lifting cylinder driving the sealing plate to abut against the abutting plate provided by the present invention;

[0036] Figure 10 Structural schematic diagram of the driving block inserted into the second assembly hole provided by the present invention.

[0037] Reference numerals in the drawings:

[0038] 1. Housing; 101. Interface reserved hole; 102. Slide bar; 103. Strip-shaped hole;

[0039] 2. Fan; 21. First assembly hole;

[0040] 31. First ventilation hole; 32. Second ventilation hole;

[0041] 4. Mobile device; 41. Support shell; 42. U-shaped frame; 43. Push cylinder; 44. Connecting frame; 45. Driving shaft; 46. Driving block;

[0042] 5. Dust-proof net;

[0043] 6. First plugging component; 61. Bottom plate; 62. Top plate; 63. Connecting rope; 64. Guide roller; 65. Support rod; 66. Second assembly hole;

[0044] 7. Second plugging component; 71. Lifting cylinder; 72. Sealing plate; 73. Abutting plate; 74. Transmission frame;

[0045] 8. Sealing cloth;

[0046] 9. Partition board; 10. Heat conducting sheet; 20. Mounting frame. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described 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 of 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.

[0048] The present invention provides a data recording device for an autonomous driving system.

[0049] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the data recording device for the autonomous driving system includes: a collection module, a processing module, a storage module, and a communication module, and further includes: a housing 1;

[0050] A plurality of fans 2, 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;

[0051] A plurality of first ventilation holes 31, the plurality of first ventilation holes 31 are staggeredly opened on both sides of the top of the housing 1;

[0052] A plurality of second ventilation holes 32, 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;

[0053] A mobile device 4, the mobile 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 are communicated with the ventilation cavity on the corresponding side.

[0054] 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. There are mounting posts inside the housing 1 for mounting 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 fan 2 blows from the side towards the circuit board, it can blow air to cool both the electrical components on the upper side of the circuit board and the bottom of the circuit board at the same time;

[0055] In this example, the number of 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 fans 2 can also be set to other numbers.

[0056] Please refer to Figure 2 and Figure 3 , by arranging the two fans 2 at both ends of the housing 1 and staggering them, 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 only from one side, which makes the electronic components on the other side only interact with the heat-exchanged air, resulting in poor heat dissipation effect. At the same time, the whole 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;

[0057] And by staggering the first ventilation holes 31 on both sides of the top of the housing 1 and staggering the second ventilation holes 32 on both sides of the bottom of the housing 1, as shown by the air flow arrows in Figure 3 , the air flow enters from the first ventilation holes 31 at the top and finally exits from the second ventilation holes 32 at the bottom; when as shown in Figure 4 , according to the air flow arrows, the air flow 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 heat-exchanged hot air are in two directions, avoiding the heat-exchanged hot air being directly introduced into the housing 1 by the fan 2 again, resulting in low heat exchange efficiency for the electronic components.

[0058] Among them, further, by staggering the two fans 2, the two first ventilation holes 31, and the second ventilation holes 32, 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 air back to clean the dust on the dust-proof nets 5. For specific details, please refer to the following description.

[0059] Please refer to Figure 3, As a preferred embodiment of this example, the data recording device for the autonomous driving system further includes two partition plates 9, and the two partition plates 9 are respectively installed on both sides of the inner wall of the housing 1. The partition plates 9 are used to separate the first ventilation holes 31 and the second ventilation holes 32 on the same side.

[0060] By providing the partition plates 9, as Figure 3 , the side of the fan 2 at the right end of the housing 1 will contact the partition plate 9, so that the hot air blown out by the left-end fan 2 can be prevented from entering from the air inlet end of the fan 2. The left-end fan 2 and the partition plate 9 are arranged in the same way, so that the hot air after heat exchange blown out by the right-end fan 2 will not enter the air inlet end of the left-end fan 2, and the hot air can only be discharged through the two second ventilation holes 32 respectively.

[0061] When the moving device 4 switches the positions of the two fans 2, the other sides of the two fans 2 will continue to contact the partition plate 9. At this time, the hot air can only be discharged through the two first ventilation holes 31 respectively.

[0062] Please refer to Figure 1 and Figure 2 , As a preferred embodiment of this example, 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.

[0063] 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 can be avoided that when the fan 2 is working, dust is inhaled into the housing 1 and adheres to the circuit board, affecting its operation.

[0064] Please refer to again Figure 3 and Figure 4 , in Figure 3 the state shown, the air flow enters from the first ventilation hole 31 and is discharged from the second ventilation hole 32. At this time, the air flow blown out by the fan 2 can back-blow and clean dust and other impurities attached to the dust-proof net 5 in the second ventilation hole 32. When the moving device 4 switches the positions of the two fans 2, as Figure 4 , at this time the air flow is discharged from the first ventilation hole 31 and enters the housing 1 from the second ventilation hole 32, so that the air flow can back-blow and clean dust and other impurities attached to the dust-proof net 5 in the first ventilation hole 31, so that the ventilation of the dust-proof net 5 can be better maintained, and the replacement time of the dust-proof net 5 can be greatly extended.

[0065] Please refer to Figure 5, as an alternative in this embodiment, the data recording device for the autonomous driving system further includes two first plugging components 6. 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 mounted on the bottom of the inner wall of the housing 1 and is disposed adjacent to the second ventilation hole 32. The top plate 62 is slidably mounted on the top inside the housing 1 and is disposed 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.

[0066] In this embodiment, when the partition 9 is provided, one end of the bottom plate 61 penetrates through the bottom of the partition 9;

[0067] By providing the first plugging component 6, when an accident occurs to an autonomous driving 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 as to prevent the fire from entering the housing 1 through the first ventilation hole 31 and the second ventilation hole 32 and burning and damaging the circuit board, and the data of the vehicle during the accident cannot be obtained.

[0068] 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.

[0069] Among them, two guide rollers 64 are provided and are respectively installed at the top of the housing 1 and below the side wall. After being guided by the two guide 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.

[0070] 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 fit.

[0071] Among them, it is preferably to provide a heat insulation layer 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.

[0072] Please refer to Figure 1, As an alternative embodiment 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 the side of the sealing plate 72 facing the housing 1.

[0073] Among them, after the circuit board and the housing 1 are installed, 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.

[0074] By setting the second plugging component 7, when an accident occurs in the autonomous driving 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 as to prevent the fire from entering the housing 1 through each interface line from the interface reserved hole 101 and burning and damaging the circuit board.

[0075] 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 shell 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.).

[0076] Please refer to again Figure 1 , In this embodiment, the top of the sealing plate 72 is set as an inclined surface.

[0077] By setting the top of the sealing plate 72 as an inclined surface, a cutting 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 lines connected to the corresponding interfaces can be directly cut off, so as to prevent the fire from entering the housing 1 through each line from the interface reserved hole 101 after the autonomous driving vehicle catches fire.

[0078] In other embodiments, a wire-disconnecting component can also be set to first disassemble the lines 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 component includes an electric push rod and a clamping component. The clamping component clamps the lines, the electric push rod is installed on the housing 1, and the clamping component is installed at the output end of the electric push rod. The electric push rod pushes the clamping component to separate each line from the corresponding interface.

[0079] Please refer to Figures 6 to 8, as an alternative embodiment of the present invention, the mobile device 4 includes a support shell 41, a U-shaped frame 42, a push cylinder 43, a connecting frame 44 and a driving shaft 45. The support shell 41 is installed at the bottom of the shell 1. The push cylinder 43 is installed in the support shell 41 through the U-shaped frame 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 opened at the bottom of the fan 2. The top end of the driving shaft 45 passes through the shell 1 through the strip hole 103 and is inserted into the first assembly hole 21.

[0080] In this embodiment, the number of mobile devices 4 is two, which are respectively located at both ends of the bottom of the shell 1.

[0081] 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.

[0082] Among them, the first assembly hole 21 is opened on the support frame of the fan 2. A plurality of slide rods 102 are installed at intervals up and down on both sides inside the shell 1. The support frame of the fan 2 is sleeved on the slide rods 102 to form a sliding assembly.

[0083] The push cylinder 43 and the lifting cylinder 71 are cylinders or hydraulic cylinders or electric push rods.

[0084] As another alternative embodiment of this embodiment, each mobile device 4 includes two fixing frames and two electric push rods. The two electric push rods are horizontally installed at the bottom and top of the shell 1 through the corresponding fixing frames. 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.

[0085] Please refer to Figures 5 to 7 , as an alternative embodiment of this embodiment, the driving part 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 transmission frame 74.

[0086] 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, so as to realize the adjustment of the position of the fan 2;

[0087] 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 block and protect the reserved hole 101 of the docking port, 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 penetrates through the dust-proof net 5 and is inserted into the second assembly hole 66, and the driving shaft 45 continues to deeply 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 block the second ventilation hole 32. The bottom plate 61 drives the top plate 62 to block 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 sealed space is formed between the U-shaped frame 42 and the support shell 41 to protect the push cylinder 43.

[0088] Thus, during the process of the lifting cylinder 71 pushing up the abutting plate 73 to block the interface reserved hole 101, the usage 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 block the second ventilation hole 32 and the first ventilation hole 31.

[0089] Among them, as Figure 3 , when the fan 2 is aligned with the first ventilation hole 31, at this time the driving block 46 is aligned with the second assembly hole 66. When a vehicle accident and combustion occur, if the fan 2 is aligned with the second ventilation hole 32, at this time the push cylinder 43 first drives the fan 2 to move to be aligned with the first ventilation hole 31, and then the second blocking assembly 7 works, so that the driving block 46 is inserted into the corresponding second assembly hole 66.

[0090] The top of the driving block 46 is provided with a tip, and the side surface 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.

[0091] Among them, rectangular sliding holes are correspondingly formed in 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.

[0092] Among them, temperature sensors are arranged on the housing 1 and on the vehicle body and near the housing 1, so as to detect whether the vehicle catches fire, so as to facilitate controlling the operation of the first blocking assembly 6 and the second blocking assembly 7.

[0093] 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.

[0094] By providing the sealing cloth 8, the strip-shaped hole 103 can be blocked, and air flow is prevented from entering or discharging from the housing 1 through the strip-shaped hole 103.

[0095] The sealing cloth 8 is alternately provided with concave folding lines and convex folding lines. Thus, when driving the shaft 45 to move 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.

[0096] On both inner walls of the strip-shaped hole 103 and on the upper and lower sides of the sealing cloth 8, protrusions are provided, which can support the sealing cloth 8 and improve the stability of the sealing cloth 8 during use.

[0097] Among them, a heat conduction sheet 10 is penetrated through the top of the housing 1, and heat can be quickly conducted out through the heat conduction sheet 10, cooperating with the fan 2 to improve the heat dissipation efficiency.

[0098] Mounting brackets 20 are installed on both sides of the housing 1 for assembling with the mounting positions on the vehicle body.

[0099] The working principle of the data recording device and method for the autonomous driving system provided by the present invention is as follows:

[0100] Please refer to Figure 2 and Figure 3 , by arranging the 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 subjected to cold air, avoiding blowing air only from one side, resulting in that the electronic components on the other side can only act with the heat-exchanged 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 2 can be adjusted regularly by 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 subjected to the action of cold air, improving the overall heat dissipation effect of the circuit board;

[0101] 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 shown by the flow arrows of the air flow in Figure 3 , the air flow enters from the first ventilation holes 31 at the top and finally discharges from the second ventilation holes 32 at the bottom; when as shown in Figure 4 , according to the flow arrows of the air flow, the air flow enters from the second ventilation holes 32 at the bottom and discharges from the first ventilation holes 31 at the top. Thus, the entry of cold air and the discharge of the heat-exchanged hot air are in two directions, avoiding the heat-exchanged hot air being directly introduced into the housing 1 by the fan 2 again, resulting in low heat exchange efficiency for the electronic components;

[0102] And in Figure 3In the state shown, the air flow enters through the first ventilation hole 31 and exits through the second ventilation hole 32. At this time, the air flow blown by the fan 2 can blow and clean the dust and other impurities attached to the dust-proof net 5 in the second ventilation hole 32. When the moving device 4 switches the positions of the two fans 2, as Figure 4 , at this time, the air flow exits through the first ventilation hole 31 and enters the housing 1 through the second ventilation hole 32. Thus, the air flow can blow and clean the dust and other impurities attached to the dust-proof net 5 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.

[0103] When an accident occurs to an autonomous vehicle, resulting in a situation such as the vehicle catching fire, the lifting cylinder 71 pushes the sealing plate 72 upward until it abuts against the abutting plate 73, and the U-shaped frame fits against 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 prevent the fire from entering the housing 1 through each interface line from the interface reserved hole 101 and burning and damaging the circuit board;

[0104] At the same time, the sealing plate 72 drives the U-shaped frame 42 to lift upward through the transmission frames 74 on both sides, thereby driving the push cylinder 43 to lift upward, so that the driving block 46 pierces through the dust-proof net 5 and then inserts 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 can drive the bottom plate 61 to move towards the second ventilation hole 32 through the driving block 46 to block 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 block the first ventilation hole 31, so as to prevent 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 make it impossible to obtain the vehicle data during the accident.

[0105] The present invention also provides a data recording method for an autonomous driving system.

[0106] A data recording method for an autonomous driving system, using the data recording device for an autonomous driving system, includes the following steps:

[0107] S1: Collect the environmental perception data of each sensor of the autonomous vehicle, the state information of the vehicle, as well as the decision-making instructions and system diagnosis information from the controller;

[0108] S2: Process the collected raw data;

[0109] S3: Locally store and upload the processed data to the cloud for storage;

[0110] S4: Manage the stored data.

[0111] The information collection in S1 is realized through the collection module. Among them, each sensor includes a camera, lidar, millimeter-wave radar, ultrasonic sensor, etc. It receives the environmental perception data collected by these sensors and obtains the vehicle's status information, such as vehicle speed, steering angle, acceleration, braking status, etc., as well as the decision-making instructions and system diagnosis information from the autonomous driving controller by connecting to the vehicle's CAN bus or other types of buses.

[0112] The processing module processes the collected raw data, including preliminary processing of the collected raw data, such as data format conversion, filtering, denoising, etc., to improve data quality and reduce the amount of data, preparing for subsequent storage and analysis; and adding accurate timestamps 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.

[0113] The storage module includes local storage and cloud storage. The local storage uses solid-state drives (SSDs) or other large-capacity and high-reliability storage devices to store a large amount of data for a long time; 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.

[0114] The storage module also includes a management module, which is responsible for managing the storage medium, including operations such as data writing, reading, deleting, backing up, encrypting, etc., to ensure the efficient storage and secure access of data.

[0115] When uploading to the cloud platform, information about the vehicle (such as license plate number), the location coordinates of the event occurrence, time, etc. are marked.

[0116] After uploading the collected information to the cloud platform, the management module can regularly delete the information in the local storage to free up the space of the local storage, and regularly delete the information stored in the cloud platform.

[0117] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A data recording device for an autonomous driving system, comprising: A collection module, a processing module, a storage module, and a communication module, characterized in that it 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, the plurality of second ventilation holes are staggeredly opened 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, the moving device is used 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; The data recording device for the autonomous driving system further includes two partitions, the two partitions are respectively installed on both sides of the inner wall of the housing, and the partitions are used to separate the first ventilation holes and the second ventilation holes on the same side.

2. The data recording device for an autonomous driving system according to claim 1, characterized in that, The data recording device for the autonomous driving system further includes a plurality of dust-proof nets, and the plurality of dust-proof nets are correspondingly installed inside the first ventilation holes and the second ventilation holes.

3. The data recording device for an autonomous driving system according to claim 1, characterized in that, The data recording device for the autonomous driving system further includes two first plugging components, the two first plugging components are respectively located on both sides inside the housing, the first plugging component includes a bottom plate, a top plate, a connecting rope, a driving member, and a plurality of guide rollers, the bottom plate is slidably installed on the bottom of the inner wall of the housing and is adjacent to the second ventilation hole, the top plate is slidably installed on the top inside the housing and is adjacent to the first ventilation hole, one end of the connecting rope is connected to the top plate, 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 towards the second ventilation hole.

4. The data recording device for an autonomous driving system according to claim 3, characterized in that, The data recording device for the autonomous driving system further includes a second plugging component, the second plugging component 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 the side of the sealing plate facing the housing.

5. The data recording device for an autonomous driving system according to claim 4, characterized in that, The top of the sealing plate is set as an inclined surface.

6. The data recording device for an autonomous driving system according to claim 4, wherein The moving device includes a support shell, a U-shaped frame, a push cylinder, a connecting frame, and a driving shaft, the support shell is installed at the bottom of the housing, the push cylinder is installed inside the support shell through the U-shaped frame, the connecting frame is installed at the output end of the push cylinder, 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 housing through a strip hole and is inserted into the first assembly hole.

7. The data recording device for an autonomous driving system according to claim 6, characterized in that, The driving member is a second assembly hole, the second assembly hole is formed in the bottom plate, the moving device further includes a driving block, the driving block is installed on the connecting frame and is arranged adjacent to the driving shaft, the length value of the driving shaft is greater than that of the driving block, the U-shaped frame is vertically slidably arranged in the support shell, and the second blocking assembly further 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.

8. The data recording device for an autonomous driving system according to claim 6, characterized in that, 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.

9. A data recording method for an autonomous driving system, characterized in that, Using the data recording device for an autonomous driving system according to any one of claims 1-8, comprising the following steps: S1: Collecting the environmental perception data of each sensor of the autonomous driving vehicle, the state information of the vehicle, as well as the decision-making instructions and system diagnosis information from the controller; S2: Processing the collected original data; S3: Locally storing the processed data and uploading it to the cloud for storage; S4: Managing the stored data.

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