CN217789769U

CN217789769U - Vehicle-mounted camera system and vehicle

Info

Publication number: CN217789769U
Application number: CN202221862318.7U
Authority: CN
Inventors: 张海剑; 张远珍; 韩冰
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-11
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses an on-vehicle camera system and vehicle, on-vehicle camera system includes: a main controller; a secondary controller electrically connected with the primary controller; the cameras are electrically connected with the secondary controller; and a serializer integrated on the secondary controller; a deserializer integrated on the main controller. Through designing the serializer on secondary control ware, can reduce the transmission line quantity between camera to the main control unit, reduce the quantity of difference serializer and deserializer, reduce cost has improved the benefit.

Description

Vehicle-mounted camera system and vehicle

Technical Field

The utility model belongs to the technical field of the smart machine technique and specifically relates to a vehicle-mounted camera system and vehicle are related to.

Background

ADAS (advanced driving assistance system) and ADS (automatic driving system) have been drawing attention in recent years as an important representative subsystem of automobile intelligence. ADAS and ADS systems require various sensors on the vehicle to collect environmental data inside and outside the vehicle to identify or track stationary or moving persons or objects, thereby allowing smart driving systems or drivers to employ automated safety techniques to detect what may happen, allowing dangerous situations to draw attention in a short amount of time and take relevant action to improve safety. In the conventional layout design, in the transmission wiring scheme between the cameras and the controller, 1 video signal transmission long line is required for inputting each camera signal (i.e. each video signal) to the controller, and 1 pair of differential pair deserializers are required, for example: if there are 12 camera sensors on the vehicle, then 12 pairs of differential deserializers are required. However, due to the design mode, the video signal transmission long wiring harness from the camera sensor to the controller is too long and too much, wiring is complex, the number of the serial deserializers is too much, the material cost is increased, the labor cost is increased, and resource waste and benefit reduction are caused.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an on-vehicle camera system, this on-vehicle camera system can simplify the transmission wiring between camera sensor to the domain controller, reduces differential serial deserializer quantity, and reduce cost improves the benefit.

The utility model discloses a vehicle is further proposed.

According to the utility model discloses on-vehicle camera system, include: a main controller; a secondary controller electrically connected with the main controller; the cameras are electrically connected with the secondary controller; and a serializer integrated on the secondary controller; a deserializer integrated on the main controller.

According to the utility model discloses on-vehicle camera system through designing the serializer on inferior controller, can reduce the transmission line quantity between camera to the main control unit, reduces the quantity of differential serializer and deserializer, and reduce cost has improved the benefit.

According to the utility model discloses an in some embodiments, inferior controller is more than one, every inferior equal electrical connection of controller is more than two the camera.

According to the utility model discloses in some embodiments, inferior controller includes: the controller includes a front controller disposed in front of the vehicle, a rear controller disposed in rear of the vehicle, a left controller disposed on a left side of the vehicle, and a right controller disposed on a right side of the vehicle.

According to the utility model discloses an in some embodiments, more than two the camera includes: the front camera is located in the front of the vehicle, the rear camera is located at the rear of the vehicle, the left camera is located in the left side of the vehicle, the right camera is located on the right side of the vehicle, the front camera is electrically connected with the front controller, the rear camera is electrically connected with the rear controller, the left camera is electrically connected with the left controller, and the right camera is electrically connected with the right controller.

According to the utility model discloses an in some embodiments, left side camera with right side camera sets up relatively, left side controller with right side controller is controlled and is set up relatively.

According to some embodiments of the present invention, a Coax transmission line is connected between the secondary controller and the primary controller.

According to the utility model discloses an in some embodiments, the camera with be connected with the video signal line between the time controller.

According to the utility model discloses an in some embodiments, inferior controller includes the PCBA module, the serializer is integrated on the PCBA module, the serializer is used for synthesizing more than two the input signal of camera is exported after the signal of the same kind, perhaps, selects more than two signal output of the same kind in the input signal of camera.

According to some embodiments of the present invention, the main controller adopts an ADAS domain controller or an ADS domain controller.

According to the utility model discloses vehicle, including foretell on-vehicle camera system.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of an on-vehicle camera system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a distribution of secondary controllers according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the cooperation of the camera and the secondary controller according to the embodiment of the present invention.

Reference numerals:

100. a vehicle-mounted camera system;

1. a main controller; 2. a secondary controller; 21. a front controller; 22. a rear controller; 23. a left controller; 24. a right controller; 3. a camera; 31. a front camera; 32. a rear camera; 33. a left camera; 34. a right camera; 41. a serializer; 42. a deserializer; 5. a Coax transmission line; 6. and a video signal line.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An in-vehicle camera system 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3.

As shown in fig. 1, the vehicle-mounted camera system 100 according to the embodiment of the present invention integrally includes: main control unit 1, inferior controller 2, more than two cameras 3, serializer 41 and deserializer 42, wherein, inferior controller 2 and main control unit 1 electrical connection, more than two cameras 3 all with inferior controller 2 electrical connection, serializer 41 is integrated on inferior controller 2, deserializer 42 is integrated on main control unit 1.

In the prior art, a serializer is usually integrated on each camera, while in the present application, the serializer 41 is integrated on the secondary controller 2, and the camera 3 without the serializer 41 can be adopted, so that the purchase cost of the camera 3 is reduced, and the use cost of the vehicle-mounted camera system 100 is reduced.

Taking the vehicle-mounted camera system 100 in this embodiment that 12 cameras 3 need to be used as an example, if a conventional video signal transmission manner is adopted, 12 pairs of serializers 41 and deserializers 42 are needed, but the vehicle-mounted camera system 100 in this embodiment can realize indirect connection between 12 cameras 3 and the controller 1 by using at least one pair of serializers 41 and deserializers 42, so that the number of 11 pairs of serializers 41 and deserializers 42 is saved at most, and the cost of the vehicle-mounted camera system 100 is greatly reduced. In addition, the camera 3 can be prevented from being directly connected with the main controller 1, so that the number of used coax transmission wire harnesses is reduced, the cost is reduced, and the wiring design is simplified.

Therefore, by designing the serializer 41 on the secondary controller 2, the design of the transmission harness from the camera 3 to the main controller 1 can be simplified, the number of the serializer 41 and the deserializer 42 can be reduced, the cost can be reduced, and the benefit can be improved.

Further, on the basis of the above embodiment, as shown in fig. 2, the number of the secondary controllers 2 is more than one, and each secondary controller 2 is electrically connected to two or more cameras 3, wherein in order to facilitate the cameras 3 to collect the environmental data around the vehicle, the two or more cameras 3 need to be distributed around the vehicle, so that the number of the coax long wire harnesses between the cameras 3 and the secondary controllers 2 is too large, and the number of the deserializers is too large, which results in complicated wiring, space occupation and cost increase. Therefore, by designing more than one secondary controller 2, the number of the coax transmission wire harnesses from the camera to the main controller can be reduced, the number of the serial deserializers is reduced, the wiring design is facilitated, and meanwhile the cost can be reduced.

Still further, on the basis of the above-mentioned embodiment, as in the embodiment shown in fig. 2, in order to facilitate the design of four-directional cameras, the secondary controller 2 includes: a front controller 21 disposed at the front of the vehicle, a rear controller 22 disposed at the rear of the vehicle, a left controller 23 disposed at the left side of the vehicle, and a right controller 24 disposed at the right side of the vehicle, wherein the front controller 21 may be correspondingly electrically connected to the front of the main controller 1, the rear controller 22 may be correspondingly electrically connected to the rear of the main controller 1, the left controller 23 may be correspondingly electrically connected to the left side of the main controller 1, and the right controller 24 may be correspondingly electrically connected to the right side of the main controller 1. Therefore, the number of the used coax transmission wire harnesses can be further reduced in four directions of front, back, left and right of the vehicle through the design, and the design and the wiring of the wire harnesses are facilitated.

Still further, on the basis of the above embodiment, as shown in fig. 3, the two or more cameras 3 include: the front camera system comprises a plurality of front cameras 31, a plurality of rear cameras 32, a plurality of left cameras 33 and a plurality of right cameras 34, wherein the front cameras 31 are located in front of the vehicle, the rear cameras 32 are located behind the vehicle, the left cameras 33 are located on the left side of the vehicle, the right cameras 34 are located on the right side of the vehicle, the front cameras 31 are electrically connected with the front controller 21, the rear cameras 32 are electrically connected with the rear controller 22, the left cameras 33 are electrically connected with the left controller 23, and the right cameras 34 are electrically connected with the right controller 24. Specifically, the area covered by the camera 3 can be increased through the arrangement, the working accuracy of the vehicle-mounted camera system 100 is improved, and the running safety of the vehicle is improved.

The utility model discloses an in some embodiments, as shown in FIG. 3, left camera 33 and right camera 34 set up relatively, and left controller 23 and right controller 24 control and set up relatively, because the left and right sides vision blind area of vehicle is bigger, can utilize camera 3 of limited quantity to cover more areas of the vehicle left and right sides through the device to promote on-vehicle camera system 100's reliability, promote the security that the vehicle travel.

The utility model discloses an in some embodiments, as shown in fig. 3, the quantity of preceding camera 31 and back camera 32 is more than two, and wherein, preceding camera 31 generally uses as main camera 3 in on-vehicle camera system 100, can realize the barrier, the lane line, the curb, traffic signal lamp, traffic signboard and the regional functions such as discernment of can going to be favorable to promoting on-vehicle camera system 100's reliability. The rear camera 32 is generally installed at the rear of the vehicle, and can be used for achieving functions such as parking assistance and the like, and meanwhile, the rear camera can form a 360-dimensional panoramic image with other cameras 3, so that the low-speed sensing function and the parking assistance function can be achieved. The number of the cameras 3 can be adjusted according to the corresponding functions of different areas through the design, so that the balance between functions and cost can be realized.

In some embodiments of the utility model, as shown in fig. 1, be connected with the Coax transmission line 5 between secondary controller 2 and the main control unit 1, wherein, the Coax transmission line 5 has the characteristics that transmission distance is long, and transmission rate is big, makes it very suitable for being used for the big demand of data transmission between secondary controller 2 and the main control unit 1 like this to be favorable to promoting data transmission's reliability and stability.

In some embodiments of the present invention, as shown in fig. 1, a short video signal line 6 is connected between the camera 3 and the secondary controller 2, and after the multi-path camera 3 signal is integrated on the secondary controller 2, the configuration function of the secondary controller 2 is performed: the camera signals are set to be one-out-of-multiple, one-out-of-multiple refers to that one path of required signals are selected to be transmitted from the multiple camera signals under the control of the secondary controller 2, or one-out-of-multiple refers to that the multiple camera signals are combined into one path of signals under the control of the secondary controller 2, then one path of signals are transmitted, then the signals are transmitted to the main controller 1 in a serial mode through the serializer, the using number of the coax transmission lines 5 can be reduced, the number of the serializer and the deserializer are reduced, the cost of data transmission is greatly reduced, and therefore the cost of the vehicle-mounted camera system 100 is reduced.

It should be noted that the secondary controller 2 includes a PCBA module, the serializer 41 is integrated on the PCBA module, and the serializer 41 is configured to synthesize the input signals of the two or more cameras 3 into one signal and output the signal, or select one signal of the input signals of the two or more cameras 3 to output the signal. That is to say, the PCBA module can play the effect of circuit control, is in serializer 41 is integrated on the PCBA module, then can synthesize the input signal of two or more cameras 3 into signal of the same kind through serializer 41 and export, or select signal output of the same kind in the input signal of two or more cameras 3 to can realize the control to the input signal of camera 3, reduce the use quantity of coax transmission line 5, and serializer and deserializer quantity, greatly reduced data transmission's cost, thereby reduce on-vehicle camera system 100's cost.

Alternatively, as shown in fig. 1 to 3, the main controller 1 employs an ADAS domain controller, wherein when the ADAS domain controller is employed by the main controller 1, the vehicle-mounted camera system 100 is an advanced driving assistance system, and when a potential danger is detected, an alarm is issued to remind a driver of an abnormal vehicle or road condition, so as to passively improve the driving safety performance of the vehicle.

Another optional feature is that the main controller 1 adopts an ADS domain controller, and at this time, the vehicle-mounted camera system further includes: and the controlled equipment is electrically connected with the ADS domain controller. When the main controller 1 adopts an ADS domain controller, the vehicle-mounted camera system 100 is an automatic driving system, and at this time, when the vehicle detects a potential danger, the main controller 1 can actively control the controlled device to perform corresponding operations, so as to avoid the risk and further actively improve the driving safety performance of the vehicle.

The utility model discloses vehicle, including the on-vehicle camera system 100 of above-mentioned embodiment, can simplify camera 3 through this on-vehicle camera system 100 and to the transmission wiring between the main control unit 1, be favorable to the wiring of pencil, reduce serializer 41 and deserializer 42's quantity simultaneously, reduce use cost, be favorable to promoting the competitiveness of vehicle.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An in-vehicle camera system, comprising:

a main controller (1);

a secondary controller (2), the secondary controller (2) being electrically connected with the main controller (1);

the more than two cameras (3), the cameras (3) are electrically connected with the secondary controller (2); and

a serializer (41), the serializer (41) being integrated on the secondary controller (2);

a deserializer (42), the deserializer (42) being integrated on the main controller (1).

2. The on-vehicle camera system according to claim 1, wherein the number of the sub-controllers (2) is one or more, and each sub-controller (2) is electrically connected to two or more cameras (3).

3. The onboard camera system according to claim 2, wherein the secondary controller (2) comprises: the controller includes a front controller disposed in front of the vehicle, a rear controller disposed behind the vehicle, a left controller disposed on a left side of the vehicle, and a right controller disposed on a right side of the vehicle.

4. The on-vehicle camera system according to claim 3, wherein two or more cameras (3) comprise: a plurality of preceding camera (31), a plurality of back camera (32), a plurality of left camera (33) and a plurality of right camera (34), a plurality of preceding camera (31) are located the place ahead of vehicle, a plurality of back camera (32) are located the rear of vehicle, a plurality of left camera (33) are located the left side of vehicle, a plurality of right camera (34) are located the right side of vehicle, a plurality of preceding camera (31) with preceding controller (21) electrical connection, a plurality of back camera (32) with back controller (22) electrical connection, a plurality of left camera (33) with left controller (23) electrical connection, a plurality of right camera (34) with right controller (24) electrical connection.

5. The on-vehicle camera system according to claim 4, wherein the left camera (33) and the right camera (34) are disposed opposite to each other, and the left controller (23) and the right controller (24) are disposed opposite to each other in the left-right direction.

6. The on-vehicle camera system according to claim 1, characterized in that a Coax transmission line (5) is connected between the secondary controller (2) and the primary controller (1).

7. The on-vehicle camera system according to claim 6, characterized in that a video signal line (6) is connected between the camera (3) and the secondary controller (2).

8. The vehicle-mounted camera system according to claim 7, wherein the secondary controller (2) comprises a PCBA module, the serializer (41) is integrated on the PCBA module, and the serializer (41) is configured to synthesize input signals of two or more cameras (3) into one signal and output the signal, or select one signal of the input signals of two or more cameras (3) to output the signal.

9. The on-vehicle camera system according to claim 1, wherein the main controller (1) employs an ADAS domain controller or an ADS domain controller.

10. A vehicle, characterized by comprising: the onboard camera system of any of claims 1-9.