In-vehicle driving assistance system

Abstract

The present application provides an on-vehicle driving assistance system, including an off-vehicle integrated machine arranged outside the vehicle, the off-vehicle integrated machine including a housing and an integrated machine host housed in the housing, a main control unit and a sensor unit electrically connected to the main control unit are arranged in the integrated machine host; the sensor unit is used to collect environmental data, and includes an infrared thermal imaging module for collecting infrared image data; the main control unit is used to receive and process environmental data to obtain environmental perception results and issue driving assistance instructions. In the on-vehicle driving assistance system of the present application, the main control unit and the sensor unit are integrated in the off-vehicle integrated machine, so that the electrical connection between the sensor unit and the main control unit is more stable, and the main control unit obtains the environmental perception results and then transmits them to the outside, which can reduce the influence of transmission instability and external interference; the off-vehicle integrated machine is placed outside the vehicle, which is more conducive to ventilation and heat dissipation.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle-mounted driving assistance system. Background Art

[0002] As AI technology is applied in more and more scenarios, the civilian automobile market has also become the main battlefield for the implementation of AI technology. More and more AI technologies are being applied in the automotive field, entering the public's driving life, serving the public and benefiting the public. The most significant and well-known application of artificial intelligence technology in the automotive field is the assisted driving solution, which mainly relies on millimeter-wave radar, visible light camera and even lidar to complete the assisted driving function.

[0003] However, these high-configuration assisted driving functions have not yet been standard for the entire series, and are only available on cars above a certain price point and high-end models of the same series, that is, the configurations that are available when the car is manufactured. For the aftermarket car market, the most common and relatively common aftermarket product is the well-known AI driving recorder. The AI ​​driving recorder enables AI computing power on the basis of recording videos. It can not only record the driving process and trace it back later, but also use AI algorithms to remind the driver in real time during driving to avoid accidents. These aftermarket assisted driving products are very helpful in improving driving safety, and the installation cost and difficulty are easily accepted by the public.

[0004] Compared with conventional visible light, infrared thermal imaging is not affected by light. Regardless of any lighting conditions, it can stably provide environmental information, especially biological information, and can clearly present the target image in a dark or strong backlight environment. In foggy scenes, the visible distance of infrared thermal imaging is also much greater than that of visible light sensors. With the pioneering promotion of infrared thermal imaging technology in the West, infrared thermal imaging products have begun to appear in the field of civilian automobiles in our country. The application of infrared thermal imaging in the civilian market is becoming more and more common, and the automotive thermal imaging assisted driving system used in the civilian automobile market has gradually entered the field of vision of ordinary consumers. Since infrared thermal imaging cannot penetrate materials that absorb infrared rays, such as glass and acrylic, infrared thermal imaging cameras need to be installed outside the cockpit. In order for infrared thermal imaging assisted driving products to correctly assist the driver, the human-computer interaction part needs to be placed inside the cockpit, so that the driver can more easily obtain auxiliary prompt information and issue instructions to the assisted driving system.

[0005] Based on the structural layout requirements of placing the infrared thermal imaging outside the car and the human-computer interaction host part inside the car, how to distribute the functions of the driving assistance system so that the two parts inside and outside the car can work better and exert greater efficiency has become a technical problem that needs to be solved urgently. Summary of the invention

[0006] In order to solve the existing technical problems, the present application provides a vehicle-mounted driving assistance system that can achieve an optimized layout structure.

[0007] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0008] An embodiment of the present application provides an on-vehicle driving assistance system, including an external integrated machine arranged outside a vehicle, the external integrated machine including a shell and an integrated machine host housed in the shell, the integrated machine host being provided with a main control unit and a sensor unit electrically connected to the main control unit; the sensor unit being used to collect environmental data, and including an infrared thermal imaging module for collecting infrared image data; the main control unit being used to receive and process the environmental data to obtain environmental perception results and to issue driving assistance instructions.

[0009] In one of the embodiments, the sensor unit further includes a visible light imaging module for collecting visible light image data, and / or a positioning sensor for acquiring position information data via satellite signals.

[0010] In one of the embodiments, the all-in-one host includes an inner shell, and the main control unit and the sensor unit are arranged in the inner shell.

[0011] In one embodiment, the main control unit includes a control circuit board and a core circuit board stacked on the control circuit board, and the electronic components on the core circuit board are in contact with the inner shell through a thermal pad.

[0012] In one of the embodiments, heat dissipation holes are provided at corresponding positions of the outer shell and the thermal pad, and the inner shell or the contact portion between the inner shell and the thermal pad is made of a thermally conductive material.

[0013] In one of the embodiments, a bracket is fixed in the inner shell, and the sensor unit is mounted on the bracket.

[0014] In one embodiment, at least one lens is embedded in the inner shell; one of the lenses corresponds to the infrared thermal imaging module, so that external light enters and is sensed by the infrared thermal imaging module, and a heating wire is arranged on the inner side of the lens corresponding to the infrared thermal imaging module; and / or, one of the lenses corresponds to the visible light imaging module, so that external light enters and is sensed by the visible light imaging module, and a heating wire is arranged on the inner side of the lens corresponding to the visible light imaging module.

[0015] In one of the embodiments, an electrical interface is provided in the inner shell, and the electrical interface provides a connection interface between the main control unit and the cable; both the inner shell and the outer shell are provided with through holes for the cables to pass through the outside of the external integrated device.

[0016] In one embodiment, the on-vehicle driving assistance system also includes a human-computer interaction module or an intelligent terminal device arranged in the cockpit of the vehicle, and the human-computer interaction module, the intelligent terminal device and the external integrated device are connected via cable signals or wireless signals; the human-computer interaction module or the intelligent terminal device includes a display device, and the display device is used to display a screen of the environmental perception results.

[0017] In one of the embodiments, the vehicle exterior integrated device is adhered to the roof of the vehicle by means of a first foam adhesive and a second foam adhesive disposed at the bottom of the housing.

[0018] The vehicle-mounted driving assistance system of the present application has at least the following beneficial effects: in the vehicle-mounted driving assistance system of the present application, the off-vehicle integrated device is installed outside the vehicle, and the main control unit and the sensor unit are integrated in the off-vehicle integrated device, which can make the electrical connection between each sensor of the sensor unit and the main control unit more stable. The main control unit transmits the environmental perception results obtained by the sensor unit to the outside, which can reduce the influence of transmission instability and external interference, and avoid signal instability and external interference that may exist in the long-distance signal harness; the long-wave infrared required by the infrared thermal imaging module in the sensor unit needs to be installed outside the cockpit; the off-vehicle integrated device is in an air-circulating environment, which is more conducive to ventilation and heat dissipation. In this way, the overall structural layout of the vehicle-mounted driving assistance system is more optimized, which can better enhance the function of driving assistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a vehicle equipped with an on-vehicle driving assistance system according to an embodiment of the present application;

[0020] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the vehicle-outside integrated device;

[0021] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the all-in-one host;

[0022] Figure 4 for Figure 2 A schematic diagram of the framework structure of the connection relationship between the all-in-one host and the human-computer interaction module;

[0023] Figure 5 for Figure 2 Schematic diagram of the exploded structure of the vehicle exterior integrated device from the bottom perspective.

[0024] The components in the figure are labeled as follows:

[0025] External integrated device 100;

[0026] Upper shell 10 (including lens positioning hole 11, screw through hole 12, heat dissipation hole 13);

[0027] Base 20 (including threaded hole column 21, screw mounting hole 22, hook 23, reinforcing rib 24, first bottom plate portion 25, second bottom plate portion 26, step 27);

[0028] All-in-one host 30 (including lens 31, lug 32, inner shell 33, bracket 34, main control unit 35, sensor unit 36, electrical interface 37, heating wire 38; front shell 331, upper inner shell 332, lower inner shell 333, waterproof ring 334; control circuit board 351, core circuit board 352; positioning sensor 361, visible light imaging module 362, infrared thermal imaging module 363);

[0029] First foam glue 40; second foam glue 50; screw 60;

[0030] Vehicle 200;

[0031] Human-computer interaction module 300. DETAILED DESCRIPTION

[0032] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] See also Figure 1 The vehicle-mounted driving assistance system of one embodiment of the present application is arranged on the vehicle 200, and is used to provide driving assistance for the vehicle 200, and includes an off-vehicle integrated device 100 arranged outside the vehicle 200, a cable (not shown), and a human-machine interaction module 300 arranged in the cockpit of the vehicle 200. Among them, the human-machine interaction module 300 is a selectively configurable part, and the human-machine interaction module 300 can also be replaced by an intelligent terminal device. The cable can match a standard interface and is suitable for personal intelligent terminal devices, such as mobile phones, tablet computers, etc.

[0037] See also Figure 2 The vehicle-mounted integrated device 100 includes an upper shell 10, a base 20, an integrated device host 30, a first foam adhesive 40, a second foam adhesive 50 and a screw 60. The upper shell 10 and the base 20 form a shell that accommodates the integrated device host 30 and are fixed into a whole by screws 60. The first foam adhesive 40 and the second foam adhesive 50 are attached to the bottom of the base 20, so that the entire vehicle-mounted integrated device 100 can be attached to the roof of the vehicle 200 (such as Figure 3 ).

[0038] The upper shell 10 is made of plastic and can play a role of sunshade. The upper shell 10 is fixed to the base 20 by means of hook sliding buckle and screw 60, so that when the base 20 is fixed to the roof, the upper shell 10 can be easily removed from the base 20 to take out the integrated machine host 30, so as to facilitate the maintenance and replacement of the integrated machine host 30.

[0039] A lens positioning hole 11 is provided at the front end of the upper shell 10 for fixing the lens 31 at the front end of the all-in-one host 30. The shape of the lens positioning hole 11 matches the shape of the lens 31 at the front end of the all-in-one host 30, thereby achieving accurate matching. A screw through hole 12 is provided at the top of the upper shell 10 near the rear end, so that the screw 60 can pass through the screw through hole 12 and connect to the base 20. In order to dissipate heat for the internal all-in-one host 30, a heat dissipation hole 13 is provided on the upper shell 10. The position of the heat dissipation hole 13 and the number of each heat dissipation hole 13 can be adjusted according to the heat-prone parts of the all-in-one host 30 and the heat generated by them. In the illustrated embodiment, the upper shell 10 is provided with heat dissipation holes 13 on both sides and the top of the lens positioning hole 11 for dissipating heat for the all-in-one host 30.

[0040] The integrated host 30 uses camera, positioning, etc. to assist driving, and is the host part of the vehicle-mounted assisted driving system. A lens 31 for receiving light protrudes from the front end of the inner shell 33 of the integrated host 30, and lugs 32 are respectively provided on both sides of the inner shell 33 of the integrated host 30. The lugs 32 are provided with openings for fixing the integrated host 30 to the base 20 through fasteners.

[0041] The base 20 is integrally formed of plastic material, used to fix the integrated machine host 30 and connected to the upper shell 10 to form a receiving space for the integrated machine host 30. The integrated machine host 30 is fixed on the base 20, and the upper shell 10 is detachably fixed to the base 20 by slidingly buckling with hooks and locking with screws 60.

[0042] The base 20 is provided with a plurality of threaded holes 21 for fixing the integrated machine host 30. The positions of the threaded holes 21 correspond to the positions of the lugs 32 provided on both sides of the body of the integrated machine host 30. The integrated machine host 30 is fixed to the base 20 by fasteners passing through the lugs 32 and screwing into the threaded holes 21. The base 20 is provided with screw mounting holes 22 corresponding to the screw through holes 12 and the screws 60 on the upper shell 10. The screw mounting holes 22 are provided at the rear end of the base 20. The screws 60 can pass through the screw through holes 12 and be screwed into the screw mounting holes 22, thereby locking and fixing the upper shell 10 and the base 20. In the illustrated embodiment, two threaded holes 21 are respectively provided on both sides of the base 20. In order to increase the structural strength of the threaded holes 21 and limit the integrated machine host 30, a reinforcing rib 24 is provided between two adjacent threaded holes 21 on the same side, and the reinforcing rib 24 connects the side walls of the two threaded holes 21 in the vertical direction.

[0043] As mentioned above, the upper shell 10 is detachably fixed to the base 20 by means of sliding engagement of the hook and locking of the screw 60. The base 20 is provided with a hook 23, the opening of which is arranged forward, and is used for buckling connection with the buckle (not shown) arranged correspondingly inside the upper shell 10. The upper shell 10 and the base 20 are positioned and connected by sliding engagement of the buckle on the upper shell 10 and the hook 23 of the base 20 along the first direction A (front-back direction). More specifically, the hook 23 is arranged forward, so that when the upper shell 10 is attached to the base 20 and slides relative to the base 20 along the first direction A, the buckle in the upper shell 10 gradually enters the hook 23 to form a buckle engagement. In order to make the upper shell 10 and the base 20 fit closely, the front, middle and rear parts of the base 20 are provided with hooks 23; at the front, middle and rear parts of the base 20, the hooks 23 are symmetrically arranged on the left and right sides, thereby ensuring that the connection points on both sides are symmetrical and the force is evenly applied. In the illustrated embodiment, six hooks 23 are disposed on the upper surface of the base 20 , and one hook 23 is disposed on the left and right sides of the front, middle, and rear portions, respectively.

[0044] Please refer to Figure 3 and Figure 4 , a main control unit 35 and a sensor unit 36 ​​are also provided in the inner shell 33 of the integrated host 30. The main control unit 35 is electrically connected to the sensor unit 36 ​​and integrated in the external integrated machine 100. The sensor unit 36 ​​collects environmental data and transmits it directly to the main control unit 35 of the same body. The main control unit 35 receives and processes the environmental data, performs AI data analysis on the processed environmental data to perform the environmental perception process, and generates driving assistance instructions such as sound and light alarm instructions based on the dynamic change trend of the environmental perception results and the dangerous relationship of the traffic participation target according to the dangerous relationship and dangerous category. The main control unit 35 can transmit signals to the human-computer interaction module 300 (or smart terminal device) through wired or wireless transmission.

[0045] The inner shell 33 includes a front shell 331, an inner upper shell 332 and an inner lower shell 333, wherein the inner upper shell 332 and the inner lower shell 333 are buckled and the front end is connected to the front shell 331, forming a cavity for installing the internal components of the integrated machine host 30. In order to increase the tightness of the connection between the inner upper shell 332 and the inner lower shell 333 and improve the waterproof performance, a circle of waterproof ring 334 is provided along the joint surface of the inner upper shell 332 and the inner lower shell 333, and the waterproof ring 334 is embedded in the joint surface of the inner lower shell 333 or the inner upper shell 332. In the illustrated embodiment, two lugs 32 are respectively provided on both sides of the inner lower shell 333, and the integrated machine host 30 is fixed to the base 20 through four lugs 32.

[0046] More specifically, the main control unit 35 includes a control circuit board 351 and a core circuit board 352. The core circuit board 352 is stacked on the control circuit board 351. The electronic components with large heat generation are concentrated on the upper core circuit board 352, and can contact the top of the inner shell 33 through a thermal pad (not shown), so as to conduct heat to the inner upper shell 332, and then dissipate heat outward through the heat dissipation holes 13 on the inner upper shell 332 and the top of the upper shell 10 corresponding to the thermal pad. In order to enhance the heat dissipation, the entire inner shell 33 or the inner upper shell 332 of the inner shell 33 (the part of the inner shell 33 that contacts the thermal pad) can be made of a thermally conductive material, such as a metal material with good thermal conductivity.

[0047] The sensor unit 36 ​​includes a positioning sensor 361, a visible light imaging module 362 and an infrared thermal imaging module 363, and the sensor unit 36 ​​is fixed in the inner shell 33 through the bracket 34. Specifically, the positioning sensor 361 is fixed above the bracket 34, and the visible light imaging module 362 and the infrared thermal imaging module 363 are installed side by side at the front end of the bracket 34. The visible light imaging module 362 and the infrared thermal imaging module 363 correspond to the two lenses 31 embedded on the front shell 331, respectively, so that external light can be received by the visible light imaging module 362 and the infrared thermal imaging module 363 through the lenses 31.

[0048] The positioning sensor 361 is used to detect the location of the vehicle 200 in real time to obtain location information data, so that the main control unit 35 can issue a driving assistance instruction according to the current location. Here, the positioning sensor 361 can be a GPS module, which obtains the current location information through satellite signals. One of the sensors commonly used for driving assistance is GPS. Since there is a large area of ​​metal body frame obstructing the vehicle 200 or a metal isolation film attached to the front windshield, the GPS signal will be weak or even too weak to be used. Setting the positioning sensor 361 in the off-vehicle integrated device 100 is very beneficial for the acquisition of satellite signals, and the signal acquisition of the positioning sensor 361 will not be affected by the structural characteristics of the vehicle 200 itself.

[0049] The visible light imaging module 362 is used to collect visible light image data. The advantage of visible light images is that they have rich color information and can distinguish target individuals.

[0050] The infrared thermal imaging module 363 is used to collect infrared image data. The advantage of infrared images is that they are sensitive to thermal information and are not affected by lighting conditions. They can still stably obtain thermal imaging information in low-light, no-light, and glare environments to ensure data stability. Moreover, the infrared thermal imaging module 363's sensitivity to thermal information can highlight living things and heat-generating targets, such as pedestrians and moving vehicles, which is more conducive to road target detection, which is very important for driving safety. Therefore, infrared thermal imaging, which performs well at night, in glare, and in foggy weather, is a powerful solution to improve driving safety, and can greatly improve driving safety at night, in glare, and in foggy weather.

[0051] The vehicle-mounted driving assistance system can determine the illumination information according to the photosensitive element, and the main control unit 35 controls the sensor unit 36 ​​to start the visible light imaging module 362 to collect visible light image data, or the infrared thermal imaging module 363 to collect infrared image data, or the visible light imaging module 362 and the infrared thermal imaging module 363 to collect image data and generate fused image data, which is conducive to ensuring that the vehicle-mounted driving assistance system collects effective image data for the driver. The main control unit 35 obtains the sensor data of the sensor unit 36 ​​and obtains the environmental perception result after processing and analysis, and can also determine whether to issue an audible and visual alarm instruction based on the environmental perception result combined with the stored preset alarm conditions.

[0052] The integrated host 30 is also provided with an electrical interface 37 in the inner shell 33. The electrical interface 37 can be a standard plug interface such as an aviation plug interface, which is used to provide a connection between the main control unit 35 and the cable (signal cable, power cable), so as to send signals to the outside / receive external signals, and / or power the integrated host 30. In the illustrated embodiment, both the inner shell 33 and the outer shell are provided with vias (not marked) for the cables to pass through the outside of the integrated machine 100 outside the vehicle, so as to allow the power cable for powering the integrated host 30 to pass through. The integrated host 30 transmits the obtained environmental perception results and sound and light alarm instructions to the human-computer interaction module 300 in the vehicle through cables or wireless signals.

[0053] Since the vehicle exterior integrated device 100 is exposed to the natural environment, the lens 31 may be fogged or frosted when the weather is cold. Therefore, a heating wire 38 is provided on the inner side of the lens 31 corresponding to the visible light imaging module 362 and / or the inner side of the lens 31 corresponding to the infrared thermal imaging module 363. The heating wire 38 is turned on under low temperature conditions to prevent frosting on the outer side of the lens 31, thereby avoiding affecting the normal acquisition of image data by the visible light imaging module 362 and the infrared thermal imaging module 363.

[0054] The human-computer interaction module 300 includes a display device, which is used to display the screen of the environmental perception result. The display device has a speaker and can play voice prompts or sound alarms. After receiving the environmental perception result information and sound and light alarm instructions transmitted by the external integrated device 100 via a cable or wirelessly, the human-computer interaction module 300 displays the environmental perception result and performs sound and light response actions (for example, the screen marks the dangerous target in red, the warning icon, the alarm sound and light).

[0055] The vehicle-mounted driving assistance system of the present application distributes the main control unit 35 and the sensor unit 36 ​​to the same off-vehicle integrated machine 100, which can make the electrical connection between each sensor of the sensor unit 36 ​​and the main control unit 35 more stable, avoiding the signal instability and external interference that may exist in the long-distance signal harness. After the main control unit 35 processes the sensor signal obtained by the sensor unit 36 ​​to obtain the environmental perception result, it outputs the result through the video interface and the audio interface, which can reduce the influence of transmission instability and external interference on the overall system. Because the environmental perception result has been obtained inside the off-vehicle integrated machine 100, even if the off-vehicle integrated machine 100 is disturbed in the external transmission, it will only affect the effect of the display of the environmental perception result, and will not affect the sensor data and cause the correctness of the environmental perception result. In addition, as mentioned above, for the vehicle 200, the off-vehicle environment is not only more friendly to the signal quality of the position sensor, but also an air-circulating environment, which is also very beneficial for ventilation and heat dissipation.

[0056] Please refer to Figure 5The bottom surface of the base 20 of the vehicle-exterior integrated device 100 can match the curvature of mainstream sedans and SUVs on the market. The bottom curved surface of the base 20 is remodeled after adapting to the curvature of the roof of mainstream models on the market, and the matching is relatively high. The bottom of the base 20 can be divided into a first bottom plate portion 25 and a second bottom plate portion 26 from front to back. The first bottom plate portion 25 and the second bottom plate portion 26 have different heights, forming a step 27. More specifically, the first bottom plate portion 25 is in the front and has a thicker thickness, and the second bottom plate portion 26 is in the back and has a thinner thickness, that is, the bottom surface of the first bottom plate portion 25 is lower than the bottom surface of the second bottom plate portion 26.

[0057] Corresponding to the first bottom plate portion 25 and the second bottom plate portion 26 of the base 20, the bottom of the base 20 is provided with a first foam adhesive 40 and a second foam adhesive 50. The shape of the first foam adhesive 40 matches the bottom surface shape of the first bottom plate portion 25, and the shape of the second foam adhesive 50 matches the bottom surface shape of the second bottom plate portion 26. The base 20 is attached to the roof of the vehicle 200 (such as Figure 1 ). One side of the first foam glue 40 is adhered to the first bottom plate portion 25 at the front of the base 20, and the other side is used to be adhered to the roof of the vehicle 200. The first foam glue 40 has strong viscosity, and its function is to fix the base 20 to the roof of the vehicle 200. One side of the second foam glue 50 is adhered to the second bottom plate portion 26 at the rear of the base 20, and the other side is used to be adhered to the roof of the vehicle 200. The second foam glue 50 is thicker and has a larger compression ratio, mainly to match the curvature of the roof of different models. The second foam glue 50 mainly plays the role of adapting to the curvature of the roof, and the bonding force (viscosity) does not need to be too strong. That is, the viscosity of the first foam glue 40 is greater than the viscosity of the second foam glue 50, and the thickness and compression ratio of the first foam glue 40 are less than the thickness and compression ratio of the second foam glue 50.

[0058] like Figure 5 As shown in , the thickness of the first foam adhesive 40 is d1, and the thickness of the second foam adhesive 50 is d2, and d2>d1. In a preferred embodiment, the difference between the thickness d1 of the first foam adhesive 40 and the thickness d2 of the second foam adhesive 50 is the height of the step 27, that is, after the first foam adhesive 40 and the second foam adhesive 50 are attached to the first bottom plate portion 25 and the second bottom plate portion 26 of the base 20, the thickness difference between the first foam adhesive 40 and the second foam adhesive 50 can fill the step 27 between the first bottom plate portion 25 and the second bottom plate portion 26, forming a smooth transition.

[0059] The screw 60 is used to lock the upper shell 10 and the base 20. More specifically, when the upper shell 10 slides along the first direction A and engages with the hook 23 of the base 20, the screw through hole 12 on the upper shell 10 and the screw mounting hole 22 on the base 20 are aligned in the second direction B. At this time, the screw 60 passes through the screw through hole 12 along the second direction B and is screwed into the screw mounting hole 22 to lock the upper shell 10 and the base 20. The first direction A and the second direction B are arranged to intersect (preferably perpendicularly) so that the relative freedom between the upper shell 10 and the base 20 is constrained.

[0060] Please continue to refer to Figure 1 When the vehicle 200 needs to be equipped with an on-board driving assistance system, the external integrated device 100 is installed and adhered to a suitable position on the roof through the first foam glue 40 and the second foam glue 50, and then connected to the human-computer interaction module 300 or the smart terminal device by cable or wireless connection.

[0061] It should be pointed out that the above-mentioned vehicle-mounted driving assistance system can be applied to both the aftermarket and the original equipment market, that is, the above-mentioned vehicle-mounted driving assistance system can be a factory-installed configuration for the vehicle, or can be installed or modified later after the vehicle leaves the factory.

[0062] To sum up, in the vehicle-mounted driving assistance system of the present application, the external integrated machine is fixed outside the vehicle by pasting or the like, and is connected to the human-computer interaction module or the intelligent terminal device in the vehicle cockpit; in the external integrated machine, the main control unit and the sensor unit are integrated inside, which can make the electrical connection between each sensor of the sensor unit and the main control unit more stable, and avoid signal instability and external interference that may exist in the long-distance signal harness; the sensor unit has a positioning sensor and an infrared thermal imaging module. The long-wave infrared rays required by the infrared thermal imaging module cannot pass through the windshield, so it needs to be installed outside the cockpit. Setting the positioning sensor in the external integrated machine is more friendly to the positioning signal quality; in addition, the external integrated machine is in an air-circulating environment, which is also a favorable factor for ventilation and heat dissipation.

[0063] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0064] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle-mounted driving assistance system, characterized in that: The invention comprises an off-vehicle integrated machine (100) arranged outside a vehicle (200), the off-vehicle integrated machine (100) comprising a housing and an integrated machine host (30) housed in the housing, the integrated machine host (30) comprising a main control unit (35) and a sensor unit (36) electrically connected to the main control unit (35); the sensor unit (36) is used to collect environmental data, and comprises an infrared thermal imaging module (363) for collecting infrared image data; the main control unit (35) is used to receive and process the environmental data to obtain environmental perception results and issue driving assistance instructions.

2. The vehicle-mounted driving assistance system according to claim 1, characterized in that: The sensor unit (36) further comprises a visible light imaging module (362) for collecting visible light image data, and / or a positioning sensor (361) for acquiring position information data via satellite signals.

3. The vehicle-mounted driving assistance system according to claim 2, characterized in that: The integrated machine host (30) comprises an inner shell (33), and the main control unit (35) and the sensor unit (36) are arranged in the inner shell (33).

4. The vehicle-mounted driving assistance system according to claim 3, characterized in that: The main control unit (35) comprises a control circuit board (351) and a core circuit board (352) stacked on the control circuit board (351), and the electronic components on the core circuit board (352) are in contact with the inner shell (33) via a thermal pad.

5. The vehicle-mounted driving assistance system according to claim 4, characterized in that: Heat dissipation holes (13) are provided at positions corresponding to the outer shell and the thermal pad, and the inner shell (33) or the contact portion between the inner shell (33) and the thermal pad is made of a thermally conductive material.

6. The vehicle-mounted driving assistance system according to claim 3, characterized in that: A bracket (34) is fixed in the inner shell (33), and the sensor unit (36) is mounted on the bracket (34).

7. The vehicle-mounted driving assistance system according to claim 6, characterized in that: At least one lens (31) is embedded on the inner shell (33); one of the lenses (31) corresponds to the infrared thermal imaging module (363) so that external light can enter and be sensed by the infrared thermal imaging module (363), and a heating wire (38) is arranged on the inner side of the lens (31) corresponding to the infrared thermal imaging module (363); and / or one of the lenses (31) corresponds to the visible light imaging module (362) so that external light can enter and be sensed by the visible light imaging module (362), and a heating wire (38) is arranged on the inner side of the lens (31) corresponding to the visible light imaging module (362).

8. The vehicle-mounted driving assistance system according to claim 3, characterized in that: An electrical interface (37) is provided in the inner shell (33), and the electrical interface (37) provides a connection interface between the main control unit (35) and the cable; and holes are provided on the inner shell (33) and the outer shell for the cable to pass through to the outside of the off-vehicle integrated device (100).

9. The vehicle-mounted driving assistance system according to claim 1, characterized in that: The on-vehicle driving assistance system further comprises a human-machine interaction module (300) or an intelligent terminal device arranged in a cockpit of the vehicle (200), wherein the human-machine interaction module (300) and the intelligent terminal device are connected to the off-vehicle integrated device (100) via a cable signal or a wireless signal; and the human-machine interaction module (300) or the intelligent terminal device comprises a display device, wherein the display device is used to display a screen of the environmental perception result.

10. The vehicle-mounted driving assistance system according to any one of claims 1 to 9, characterized in that: The vehicle-exterior integrated device (100) is adhered to the roof of the vehicle (200) by means of a first foam adhesive (40) and a second foam adhesive (50) arranged at the bottom of the housing.

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