CN211791696U

CN211791696U - Split type binocular camera and automatic driving system

Info

Publication number: CN211791696U
Application number: CN202020411259.6U
Authority: CN
Inventors: 段威龙; 赵磊; 王君达; 周涛; 江颖婕
Original assignee: Beijing Smarter Eye Technology Co Ltd
Current assignee: Beijing Smarter Eye Technology Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-27
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a split type binocular camera and autopilot system, this split type binocular camera includes: a first component for acquiring and processing images; a second component for processing image information; the binocular camera further includes: a serializer module, a deserializer module and a camera-link cable; the first end of the camera-link cable is connected with the image processing unit in the first assembly through an interface of the serializer module, and the second end of the camera-link cable is connected with the processor in the second assembly through an interface of the deserializer module. According to the scheme, the camera optical sensor part is separated from other processing units, so that the equipment mounted on the automobile front gear part is small in size, the requirements of main devices on the working environment are reduced, the distance between the camera and the processing control part is increased, and the problem of transmission distance is solved.

Description

Split type binocular camera and automatic driving system

Technical Field

The utility model relates to an on-vehicle two mesh camera equipment field especially relates to a split type two mesh cameras and autopilot system.

Background

The working principle of the existing binocular camera is as follows:

as shown in fig. 1, 2 optical sensors are responsible for converting optical signals into electrical signals and transmitting the data to the image processing unit ISP through the MIPI interface. The hardware interface between the image processing unit ISP and the optical sensor includes MIPI interface, I2C interface, reset and other control signals. The image processing unit ISP performs a series of image preprocessing operations after receiving the data of the optical sensor. The image processing unit ISP transmits the preprocessed image to the central processor through the DVP interface (or mipi interface), and the central processor undertakes image processing algorithms with large computational load.

The camera operating system is also located in the central processing unit module and is responsible for managing images, data and results and communicating with an external system through various interfaces. The camera module is connected with the central processing unit through an I2C bus, and is additionally provided with signals such as power supply, reset and the like.

The current problems are as follows:

the binocular camera after system integration is generally fixed in front windshield, has some problems in the application, specifically as follows: all the unit modules are integrated in one device, so that the size of the binocular camera is large, and the sight of a driver can be influenced after the binocular camera is fixed at the front gear of an automobile, and therefore, the size of the binocular camera is required to be as small as possible; the binocular camera needs a plurality of signal wires such as power wires and signal wires, and the wiring difficulty is increased during actual installation; the front windshield of the automobile is a direct sunlight area, so that the heat dissipation design of equipment is strictly required, and the design difficulty is increased; the disadvantages of the camera transmission distance limitation and temperature also have limitations in industrial application.

In view of this, the present invention is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a split type binocular camera and autopilot system for solve install keep off partial equipment two mesh cameras before the car because of the volume too big, and the installation that brings separates camera optical sensor part and other processing unit at above-mentioned scheme, make to install the volume of keeping off partial equipment before the car less, reduced the requirement of main device to operational environment, increased camera and processing control part's distance.

To achieve the above object, according to an aspect of the present invention, there is provided a split binocular camera, and the following technical solutions are adopted:

a split binocular camera comprising: a first component for acquiring and processing images; a second component for processing image information; the binocular camera further includes: a serializer module, a deserializer module and a camera-link cable; wherein a first end of the camera-link cable is connected with the image processing unit in the first component through the interface of the serializer module, and a second end of the camera-link cable is connected with the processor in the second component through the interface of the deserializer module.

Further, the serializer module includes, but is not limited to: a first serializer for converting the first digital signal into a first long-distance transmission LVDS signal, a second serializer for converting the second digital signal into a second long-distance transmission LVDS signal; and a serializer module interface for converging the first long-distance transmission LVDS signal and the second long-distance transmission LVDS signal.

Further, the first serializer and the second serializer are both electrically connected with the image processing unit through a DVP interface.

Further, the deserializer module comprises: one or more of the deserializer module interface for receiving LVDS signals and a DVP interface connected to the processor.

According to the utility model discloses in another aspect, an automatic driving system is provided to adopt following technical scheme:

an autopilot system comprising: the split binocular camera.

According to the scheme, the camera optical sensor part is separated from other processing units, so that the equipment mounted on the automobile front gear part is small in size, the requirements of main devices on the working environment are reduced, the distance between the camera and the processing control part is increased, and the problem of transmission distance is solved.

The utility model discloses a supplementary driving system's on-vehicle ethernet converting circuit, the volume problem. The original scheme is large in size and affects the realization of a driver, the image processor, the central controller and each peripheral interface are independent in the new scheme, circuits only retaining the optical sensor and the serializer are integrated into a binocular camera independent module, and the size of the device installed on the automobile front gear part is small. Additionally, the technical scheme of the utility model the problem of transmission distance has still been solved, the distance of camera and processing control part has been increased. The method is suitable for the visual transmission scheme in the field of industrial control and monitoring.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural view of a conventional binocular camera according to the abstract of the present invention;

fig. 2 is a schematic structural diagram of a split camera according to an embodiment of the present invention;

fig. 3 is a block diagram of a Camera-Link architecture according to an embodiment of the present invention;

FIG. 4 is a block diagram of a Camera-Link Base interface according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a 100 ohm resistor at the receiving end of the deserializer module according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the scope of the present invention.

Fig. 2 is a schematic structural view of a split binocular camera according to an embodiment of the present invention. Referring to fig. 1, the split type binocular camera includes: a first component 10 for acquiring and processing images; a second component 20 for processing image information; the binocular camera further includes: a serializer module 101, a deserializer module 201, and a camera-link cable; wherein a first end of the camera-link cable is connected to the image processing unit in the first component through the interface of the serializer module 101, and a second end of the camera-link cable is connected to the processor in the second component 20 through the interface of the deserializer module 201.

In the above-mentioned technical scheme of this embodiment, for the problem that effectual solution prior art exists, the utility model provides a split type binocular camera scheme, this scheme separates camera optical sensor part and other processing unit. By means of the Camera-Link scheme of the company TI, the image signal output by the optical sensor is converted into an LVDS signal that can be transmitted over a long distance, while the LVDS signal is restored to a signal that can be recognized by the image processing unit. The optical sensor section and the central processor are thereby completely separated, and they are connected by a Camera-Link-sized cable.

More specifically, the Camera-Link scheme is mainly composed of a Serializer Serializer and a Desilicizer deserializer.

The optical sensor converts the image information into a Mipi digital signal and transmits the Mipi digital signal to an ISP image processor for processing. And outputting the DVP digital signal after processing. In this embodiment, the Serializer can convert the digital signal of the DVP interface into an LVDS signal capable of long-distance transmission, and transmit the LVDS signal through a cable connection of the Camera-Link specification.

The deserializer can analyze the received LVDS signal, reduce the received LVDS signal into a digital signal of the DVP interface, and then send the digital signal to a CPU (central processing unit) for further processing image information. The image quality and reliability can be ensured while the transmission distance of the image can be conveniently improved through the serial deserializer, and the method is realized through pure hardware without the intervention of software. Reducing development effort and other factors that are unreliable.

There are three variants of Camera Link, Base, Medium, Full as shown in fig. 3, and preferably, the serializer module 101 includes, but is not limited to: a first serializer for converting the first digital signal into a first long-distance transmission LVDS signal, a second serializer for converting the second digital signal into a second long-distance transmission LVDS signal; and a serializer module interface for converging the first long-distance transmission LVDS signal and the second long-distance transmission LVDS signal. Specifically, in fig. 3, convergence is performed by LVDS1 and LVDS2, and more specifically, the convergence may be performed by expanding to LVDS3, and then performing signal convergence.

In FIG. 4, Camera-Link employs a Base type 4-line signal line and 1-line CLK clock scheme. The transmission rate of each LVDS data line is 595Mbps at 85MHz, and the total data transmission rate of the LVDS reaches 2.38 Gbit/. The transmission distance may be up to 10 meters.

Preferably, the first serializer and the second serializer are both electrically connected with the image processing unit through a DVP interface.

Preferably, the deserializer module 201 comprises: one or more of the deserializer module interface for receiving LVDS signals and a DVP interface connected to the processor.

The receiving end of the deserializer module 201 requires a 100 ohm resistor as shown in fig. 5.

As mentioned above, the existing solution has the disadvantages of heat dissipation, volume and the like, and the new solution based on Camera-Link can effectively solve the problems.

(1) The problem of volume. The original scheme is large in size and affects the realization of a driver, the image processor, the central controller and each peripheral interface are independent in the new scheme, circuits only retaining the optical sensor and the serializer are integrated into a binocular camera independent module, and the size of the device installed on the automobile front gear part is small.

(2) Wiring problems. The binocular camera independent module requires fewer cables and only needs 1 cable, so that the wiring difficulty is greatly reduced.

(3) And (4) heat dissipation. Because the image processor, the central controller and each peripheral interface are independent in the new scheme, the image processor, the central controller and each peripheral interface do not need to be installed at the front gear of the automobile any more, and the requirements of main devices on the working environment are reduced.

(4) The problem of transmission distance is solved, and the distance between the camera and the processing control part is increased. The method is suitable for the visual transmission scheme in the field of industrial control and monitoring.

The utility model provides a pair of automatic driving system adopts following technical scheme: an automatic driving system comprises the split binocular camera.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A split binocular camera, comprising:

a first component for acquiring and processing images;

a second component for processing image information;

it is characterized in that the binocular camera further comprises:

a serializer module, a deserializer module and a camera-link cable;

wherein a first end of the camera-link cable is connected with the image processing unit in the first component through the interface of the serializer module, and a second end of the camera-link cable is connected with the processor in the second component through the interface of the deserializer module.

2. The split binocular camera of claim 1, wherein the serializer module includes, but is not limited to: a first serializer for converting the first digital signal into a first long-distance transmission LVDS signal, a second serializer for converting the second digital signal into a second long-distance transmission LVDS signal;

and a serializer module interface for converging the first long-distance transmission LVDS signal and the second long-distance transmission LVDS signal.

3. The split binocular camera of claim 2, wherein the first serializer and the second serializer are both electrically connected with the image processing unit through a DVP interface.

4. The split binocular camera of claim 1, wherein the deserializer module comprises: one or more of the deserializer module interface for receiving LVDS signals and a DVP interface connected to the processor.

5. An autopilot system, comprising: the split binocular camera of any one of claims 1 to 4.