CN114422737A - Video data distribution system and method and camera data processing system - Google Patents
Video data distribution system and method and camera data processing system Download PDFInfo
- Publication number
- CN114422737A CN114422737A CN202210100033.8A CN202210100033A CN114422737A CN 114422737 A CN114422737 A CN 114422737A CN 202210100033 A CN202210100033 A CN 202210100033A CN 114422737 A CN114422737 A CN 114422737A
- Authority
- CN
- China
- Prior art keywords
- serializer
- video data
- slave
- master
- camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
Abstract
The application provides a video data distribution system, a method and a camera data processing system, wherein the video data distribution system comprises: the device comprises a deserializer, a master serializer and a slave serializer; the deserializer is respectively connected with the master path serializer and the slave path serializer; the deserializer is used for receiving the video data sent by the camera and respectively transmitting the video data to the master path serializer and the slave path serializer; the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller. According to the video data processing method and device, the video data output by the camera can be stored in a shunting manner, and the cost of the sensor in the system is saved.
Description
Technical Field
The application relates to the technical field of intelligent driving, in particular to a video data distribution system and method and a camera data processing system.
Background
In recent years, attention in the industry has been increased for autonomous driving. The data acquisition and storage of the sensor are an important link for the development of the automatic driving technology. Multiple sensors inevitably encounter problems of system scheme and hardware arrangement, which is a great challenge to signal control and post maintenance of the whole vehicle. At present, data of most sensors are transmitted one to one, especially cameras, and if data backup is needed besides a perception decision function, the sensors are added, so that the system cost is increased.
Disclosure of Invention
The application aims to provide a video data shunting system, a video data shunting method and a camera data processing system, which can shunt and store video data output by a camera and save the cost of a sensor in the system.
In a first aspect, an embodiment of the present application provides a video data offloading system, including: the device comprises a deserializer, a master serializer and a slave serializer; the deserializer is respectively connected with the master path serializer and the slave path serializer; the deserializer is used for receiving the video data sent by the camera and respectively transmitting the video data to the master path serializer and the slave path serializer; the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller.
Further, the video data distribution system further includes: an MCU module; the MCU module is respectively connected with the deserializer, the main path serializer and the slave path serializer; the MCU module is used for determining and connecting the target serializer according to the state of the trigger signal input by the main road serializer when the video data shunting system is started so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on the camera; the target serializer includes: master or slave serializers.
Further, the MCU module is further configured to, during operation of the video data shunting system, detect a state of a trigger signal input by a GPO interface of the target serializer in real time, and switch to a slave controller externally connected to the slave serializer to perform initialization configuration and trigger control on the camera when it is determined that the operating state of the target controller is abnormal according to the state and the target controller is the master controller.
Furthermore, the MCU module is respectively connected with a GPI interface, an IIC interface of the deserializer, a GPO interface and an IIC interface of the master serializer, a GPO interface and an IIC interface of the slave serializer; the deserializer is connected with the camera through a GMSL communication interface and is respectively connected with the master-path serializer and the slave-path serializer through two paths of 4-lane MIPI CSI-2 interfaces; the master serializer and the slave serializer are connected with the corresponding external controller through the GMSL communication interface.
In a second aspect, an embodiment of the present application further provides a video data offloading method, where the method is applied to a video data offloading system; the video data distribution system comprises: the device comprises a deserializer, a master serializer and a slave serializer; the deserializer is respectively connected with the master path serializer and the slave path serializer; the method comprises the following steps: the deserializer receives the video data sent by the camera and respectively transmits the video data to the master path serializer and the slave path serializer; the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller.
Further, the video data distribution system further includes: an MCU module; the MCU module is respectively connected with the deserializer, the main path serializer and the slave path serializer; before the step of the deserializer receiving the video data sent by the camera and respectively transmitting the video data to the master serializer and the slave serializer, the method further comprises the following steps: when the video data shunting system is started, the MCU module determines and connects the target serializer according to the state of the trigger signal input by the main serializer so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on the camera; the target serializer includes: master or slave serializers.
Furthermore, the MCU module is respectively connected with a GPI interface, an IIC interface of the deserializer, a GPO interface and an IIC interface of the master serializer, a GPO interface and an IIC interface of the slave serializer; the MCU module determines and connects the target serializer according to the state of the trigger signal input by the main serializer so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on the camera, and the method comprises the following steps of: the MCU module acquires the state of a trigger signal input by a GPO interface of the main road serializer and judges whether the working state of the main road serializer corresponding to an externally connected main road controller is normal or not according to the state; if the working state of the main road controller is normal, determining the main road serializer as a target serializer; if the working state of the master controller is abnormal, determining the slave serializer as a target serializer; and the IIC interface and the GPO interface of the target serializer are communicated, so that a target controller externally connected with the target serializer carries out initialization configuration on a register of the camera through the IIC interface of the target serializer, and triggers the ISP of the camera through the GPO interface of the target serializer.
Further, the deserializer is configured with a GMSL communication interface and two 4-lane MIPI CSI-2 interfaces; the step that the deserializer receives the video data sent by the camera and respectively transmits the video data to the master serializer and the slave serializer comprises the following steps: the deserializer receives video data sent by the camera through the GMSL communication interface and respectively transmits the video data to the master-path serializer and the slave-path serializer through the two paths of 4-lane MIPI CSI-2 interfaces.
Further, the method further comprises: in the running process of the video data shunting system, the MCU module detects the state of a trigger signal input by the target serializer in real time, and when the working state of the target controller is judged to be abnormal according to the state and the target controller is the master controller, the MCU module is switched to the slave controller which is externally connected and corresponds to the slave serializer to carry out initialization configuration and trigger control on the camera.
In a third aspect, an embodiment of the present application further provides a camera data processing system, where the camera data processing system includes: the system comprises a camera, a master path controller, a slave path controller and the video data shunting system according to the first aspect; the camera is connected with a deserializer in the video data shunting system; the main road controller is connected with a main road serializer in the video data shunting system; the slave channel controller is connected with a slave channel serializer in the video data shunting system; the video data distribution system is used for distributing and storing the video data of the camera and is also used for supplying power to the POC for the camera.
In the video data distribution system, the video data distribution method, and the camera data processing system provided in the embodiments of the present application, the video data distribution system includes: the device comprises a deserializer, a master serializer and a slave serializer; the deserializer is respectively connected with the master path serializer and the slave path serializer; the deserializer is used for receiving the video data sent by the camera and respectively transmitting the video data to the master path serializer and the slave path serializer; the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller. According to the embodiment of the application, the video data output by the camera can be stored in a shunting manner through the deserializer and the two paths of master-slave serializers, so that the cost of the sensor in the system is saved.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a video data offloading system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another video data splitting system according to an embodiment of the present application;
fig. 3 is a flowchart of a video data offloading method according to an embodiment of the present disclosure;
fig. 4 is a flowchart of another video data offloading system method according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a camera data processing system according to an embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the technical field of intelligent driving, data of most sensors are transmitted one to one, particularly cameras, and if data backup is needed besides a perception decision function, the sensors are increased, so that the system cost is increased. Based on this, the embodiments of the present application provide a video data offloading system, a video data offloading method, and a camera data processing system, which can offload and store video data output by a camera, and save the cost of a sensor in the system.
To facilitate understanding of the present embodiment, a detailed description will be given first of all of a video data distribution system disclosed in the embodiments of the present application.
Fig. 1 is a video data distribution system according to an embodiment of the present application, where the video data distribution system includes: a deserializer 11, a master serializer 12, and a slave serializer 13; wherein, the deserializer 11 is respectively connected with the master serializer 12 and the slave serializer 13; the deserializer 11 is configured to receive video data sent by the camera and transmit the video data to the master serializer 12 and the slave serializer 13, respectively; the master serializer 12 and the slave serializer 13 convert the received video data into high-speed serial signals, and transmit the high-speed serial signals to the corresponding external controller.
The deserializer can be realized by a chip with a model number of MAX9296, is used for receiving video data transmitted by a camera in real time, and can be compatible with GMSL and GMSL 2; the MAX9296 is provided with two input and output interfaces, namely two GMSL1/2 high-speed serial interfaces, and two 4-lane MIPI CSI-2 interfaces are provided for the outside; therefore, the MAX9296 can transmit the received serial signals to the two serializer modules through the two 4-lane MIPI CSI-2 circuits respectively.
The master serializer and the slave serializer can both adopt chips with the model of MAX9295, convert video data into high-speed serial signals and transmit the high-speed serial signals to an external controller. The input end of the MAX9295 chip comprises a 14bit parallel interface and a 4-lane MIPI CSI-2 interface, and is used for receiving camera data transmitted by a deserializer; the output may be compatible with both GMSL and GMSL 2.
In the video data offloading system provided in the embodiment of the present application, the video data offloading system includes: the device comprises a deserializer, a master serializer and a slave serializer; the deserializer is respectively connected with the master path serializer and the slave path serializer; the deserializer is used for receiving the video data sent by the camera and respectively transmitting the video data to the master path serializer and the slave path serializer; the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller. In the embodiment, the deserializer, the master serializer and the slave serializer are used for dividing the video data of one camera into two paths to be output, so that the functions of real-time data distribution and storage are realized, and the cost of a sensor in the system is saved.
The embodiment of the present application further provides a video data offloading system, which is implemented on the basis of the previous embodiment, and in this embodiment, the function of the MCU module is mainly described.
The video data distribution system further includes: an MCU module; the MCU module is respectively connected with the deserializer, the main path serializer and the slave path serializer; the MCU module is used for determining and connecting the target serializer according to the state of the trigger signal input by the main road serializer when the video data shunting system is started so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on the camera; the target serializer includes: master or slave serializers.
In addition, the MCU module is further configured to detect a state of a trigger signal input by a GPO interface of the target serializer in real time during an operation of the video data distribution system, and switch to a slave serializer corresponding to an external slave controller to perform initialization configuration and trigger control on the camera when it is determined that the operating state of the target controller is abnormal and the target controller is the master controller according to the state.
The MCU module can be realized by adopting a chip with the model of RH850, and is used for respectively controlling the on-off of the master-slave IIC and the GPO. The IIC of the two serializers and the IIC of the one deserializer are connected with the MCU module; meanwhile, GPO ports of the two serializers and GPI ports of the deserializers are connected with the MCU module.
The MCU module judges whether the working state of the master controller is abnormal or not through the state of the trigger signal input by the master serializer GPO, so that the master and slave signals are switched. When the trigger signal sent by the GPO interface of the main road serializer is normally input, judging that the controller of the main road works normally, and configuring the camera by using the controller of the main road; when the trigger signal sent by the GPO interface of the master path serializer is abnormal, the controller of the master path is judged to be in fault, and the controller of the slave path is used for configuring the camera.
In a preferred embodiment, the deserializer is implemented by a chip with a model number of MAX9296, the master serializer and the slave serializer are implemented by chips with a model number of MAX9295, and as shown in fig. 2, the MCU module 14 is connected to a GPI interface and an IIC interface of the deserializer 11, a GPO interface and an IIC interface of the master serializer 12, and a GPO interface and an IIC interface of the slave serializer 13, respectively; the deserializer 11 is connected with the camera through a GMSL communication interface and is respectively connected with the master-path serializer 12 and the slave-path serializer 13 through two paths of 4-lane MIPI CSI-2 interfaces; the master serializer 12 and the slave serializer 13 are both connected to a corresponding external controller through GMSL communication interfaces.
According to the video data shunting system provided by the embodiment of the application, the MCU module is used for judging the state of the trigger signal input by the main serializer, and the controller corresponding to which serializer is selected can be flexibly switched to carry out initialization configuration and trigger control on the camera. Under the condition that the working state of the main road controller is normal, the main road controller is selected to complete the configuration work of the camera, and under the condition that the working state of the main road controller is abnormal, the slave road controller is selected to complete the configuration work of the camera, so that the normal work of the video data shunting system can be ensured.
Based on the system embodiment, the embodiment of the present application further provides a video data offloading method, which is applied to the video data offloading system; the video data distribution system comprises: the device comprises a deserializer, a master serializer and a slave serializer; the deserializer is respectively connected with the master path serializer and the slave path serializer; referring to fig. 3, the method comprises the steps of:
step S302, the deserializer receives the video data sent by the camera and respectively transmits the video data to the master serializer and the slave serializer;
step S304, the master serializer and the slave serializer convert the received video data into high-speed serial signals respectively, and transmit the high-speed serial signals to the corresponding external controller.
In the video data shunting method provided by the embodiment of the application, the video data of one path of camera can be divided into two paths to be output through the deserializer, the main path serializer and the slave path serializer, so that the functions of real-time data shunting and storage are realized, and the cost of a sensor in a system is saved.
In another embodiment, the video data splitting system further includes: an MCU module; the MCU module is respectively connected with the deserializer, the main path serializer and the slave path serializer; an embodiment of the present application further provides another video data splitting method, as shown in fig. 4, the method specifically includes the following steps:
step 402, when the video data shunting system is started, the MCU module determines and connects the target serializer according to the state of the trigger signal input by the main serializer, so that a target controller externally connected with the target serializer performs initialization configuration and trigger control on the camera; the target serializer includes: master or slave serializers.
The MCU module is respectively connected with a GPI interface, an IIC interface of the deserializer, a GPO interface and an IIC interface of the main serializer, a GPO interface and an IIC interface of the slave serializer; the MCU module determines and connects the target serializer according to the state of the trigger signal input by the main serializer, so that the target controller externally connected to the target serializer performs initialization configuration and trigger control on the camera, and specifically includes: the MCU module acquires the state of a trigger signal input by a GPO interface of the main road serializer and judges whether the working state of the main road serializer corresponding to an externally connected main road controller is normal or not according to the state; if the working state of the main road controller is normal, determining the main road serializer as a target serializer; if the working state of the master controller is abnormal, determining the slave serializer as a target serializer; the IIC interface of the target serializer is communicated with the GPO interface (namely the GPO interface of the target serializer is communicated with the GPI interface of the deserializer, and the IIC interface of the target serializer is communicated with the IIC interface of the deserializer), so that a target controller externally connected with the target serializer is used for carrying out initialization configuration on a register of the camera through the IIC interface of the target serializer and triggering the ISP of the camera through the GPO interface of the target serializer. For example, if the trigger frame rate is 10Hz, the camera will send video data to the deserializer at the frame rate of 10 Hz.
In step S404, the deserializer receives the video data sent by the camera and transmits the video data to the master serializer and the slave serializer, respectively. Specifically, the deserializer is configured with a GMSL communication interface and two 4-lane MIPI CSI-2 interfaces; the deserializer receives video data sent by the camera through the GMSL communication interface and respectively transmits the video data to the master-path serializer and the slave-path serializer through the two paths of 4-lane MIPI CSI-2 interfaces.
Step S406, the master serializer and the slave serializer convert the received video data into high-speed serial signals respectively, and transmit the high-speed serial signals to the corresponding external controller.
Step S408, in the running process of the video data shunting system, the MCU module detects the state of the trigger signal input by the target serializer in real time, and when the working state of the target controller is judged to be abnormal according to the state and the target controller is the main controller, the MCU module is switched to the auxiliary controller which is externally connected and corresponds to the auxiliary serializer to carry out initialization configuration and trigger control on the camera.
In practical applications, the following six conditions are encountered:
1) when the system is started and in the operation process, the master controller and the slave controller can work normally:
when the master controller is started, the MCU module in the video data shunt system detects that a trigger signal sent by a GPO interface of the master serializer is normal, so that the working state of the MCU module judges that the master controller is normal; the working state of the MCU module is that the GPO interface and the IIC interface of the main road serializer are switched on, so that the main road controller configures the register of the camera through the IIC interface of the main road serializer and controls the GPO interface of the main road serializer to trigger the camera.
2) When the system is started, the master controller and the slave controller can work normally, and in the running process, when the controller of the slave fails suddenly:
when the master controller is started, the MCU module in the video data shunt system detects that a trigger signal sent by a GPO interface of the master serializer is normal, so that the working state of the MCU module judges that the master controller is normal; the working state of the MCU module is that the GPO interface and the IIC interface of the main road serializer are switched on, so that the main road controller configures the register of the camera through the IIC interface of the main road serializer and controls the GPO interface of the main road serializer to trigger the camera.
And the controller of the slave path fails in the running process, and the working state of the MCU is not influenced at the moment.
3) When the system is started, the master controller and the slave controller can work normally, and in the running process, when the master controller suddenly fails:
when the master controller is started, the MCU module in the video data shunt system detects that a trigger signal sent by a GPO interface of the master serializer is normal, so that the working state of the MCU module judges that the master controller is normal; the working state of the MCU module is that the GPO interface and the IIC interface of the main road serializer are switched on, so that the main road controller configures the register of the camera through the IIC interface of the main road serializer and controls the GPO interface of the main road serializer to trigger the camera.
When the main road controller fails in the operation process, the MCU module in the video data shunt system detects that the trigger signal sent by the GPO interface of the main road serializer is abnormal, so that the working state of the MCU module is judged to be the main road controller failure; at this time, the MCU module connects the GPO interface and the IIC interface of the slave serializer, so that the slave controller configures the register of the camera through the IIC interface of the slave serializer, and controls the GPO interface of the slave serializer to trigger the camera.
4) When the system is started, the master controller works normally, and when the slave controller fails:
when the master controller is started, the MCU module in the video data shunt system detects that a trigger signal sent by a GPO interface of the master serializer is normal, so that the working state of the MCU module judges that the master controller is normal; the working state of the MCU module is that the GPO interface and the IIC interface of the main road serializer are switched on, so that the main road controller configures the register of the camera through the IIC interface of the main road serializer and controls the GPO interface of the main road serializer to trigger the camera.
5) When the system is started, the slave controller works normally, and when the master controller fails:
when the master controller is started, the MCU module in the video data shunt system detects that a trigger signal sent by a GPO interface of the master serializer is abnormal, so that the working state of the MCU module judges that the master controller is in failure; the working state of the MCU module is that the GPO interface and the IIC interface of the slave serializer are connected, so that the slave controller configures the register of the camera through the IIC interface of the slave serializer and controls the GPO interface of the slave serializer to trigger the camera.
6) When the system starts, the master controller and the slave controller are failed:
when the master controller is started, the MCU module in the video data shunt system detects that a trigger signal sent by a GPO interface of the master serializer is abnormal, so that the working state of the MCU module judges that the master controller is in failure; the working state of the MCU is that a slave controller is used for working; at this time, the slave controller fails, so that the register of the camera cannot be configured, and the camera cannot be triggered, so that no video data is output finally.
According to the video data shunting method provided by the embodiment of the application, the MCU module judges the state of the trigger signal input by the main serializer, and the controller corresponding to which serializer is selected can be flexibly switched to carry out initialization configuration and trigger control on the camera. Under the condition that the working state of the main road controller is normal, the main road controller is selected to complete the configuration work of the camera, and under the condition that the working state of the main road controller is abnormal, the slave road controller is selected to complete the configuration work of the camera, so that the normal work of the video data shunting system can be ensured.
Based on the above system embodiment, an embodiment of the present application further provides a camera data processing system, as shown in fig. 5, the camera data processing system includes: a camera 51, a master controller 52, a slave controller 53, and a video data distribution system 54 according to the first aspect; the camera 51 is connected with a deserializer 541 in the video data shunting system 54; the main-path controller 52 is connected to the main-path serializer 542 in the video data branching system 54; the slave controller 53 is connected with the slave serializer 543 in the video data shunting system 54; the video data distribution system 54 is used for distributing and storing the video data of the camera 51 and also used for supplying POC power to the camera 51.
Of course, the video data shunting system 54 may further include an MCU module, and the working process thereof is the same as that described above and is not described herein again. The implementation principle and the generated technical effect of the camera data processing system provided by the embodiment of the present application are the same as those of the foregoing system and method embodiments, and for brief description, reference may be made to corresponding contents in the foregoing method or system embodiment for the part of the embodiment of the camera data processing system that is not mentioned.
Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present application.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A video data distribution system, comprising: the device comprises a deserializer, a master serializer and a slave serializer; wherein the deserializer is connected with the master serializer and the slave serializer, respectively;
the deserializer is used for receiving the video data sent by the camera and respectively transmitting the video data to the master path serializer and the slave path serializer;
the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller.
2. The video data splitting system according to claim 1, wherein the video data splitting system further comprises: an MCU module; the MCU module is respectively connected with the deserializer, the master path serializer and the slave path serializer;
the MCU module is used for determining and connecting a target serializer according to the state of a trigger signal input by the main serializer when the video data shunting system is started so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on a camera; the target serializer includes: the master serializer or the slave serializer.
3. The video data shunting system of claim 2, wherein the MCU module is further configured to, during an operation of the video data shunting system, detect a state of a trigger signal input by a GPO interface of the target serializer in real time, and switch to a slave controller externally connected to the slave serializer to perform initialization configuration and trigger control on the camera when it is determined that an operating state of the target controller is abnormal according to the state and the target controller is a master controller.
4. The video data shunting system according to claim 2, wherein the MCU module is respectively connected to the deserializer GPI interface, the IIC interface, the GPO interface and the IIC interface of the master serializer, and the GPO interface and the IIC interface of the slave serializer; the deserializer is connected with the camera through a GMSL communication interface and is respectively connected with the master-path serializer and the slave-path serializer through two paths of 4-lane MIPI CSI-2 interfaces; the master serializer and the slave serializer are connected with a corresponding external controller through GMSL communication interfaces.
5. A video data distribution method is characterized in that the method is applied to a video data distribution system; the video data distribution system comprises: the device comprises a deserializer, a master serializer and a slave serializer; wherein the deserializer is connected with the master serializer and the slave serializer, respectively; the method comprises the following steps:
the deserializer receives video data sent by a camera and respectively transmits the video data to the master path serializer and the slave path serializer;
the master serializer and the slave serializer respectively convert the received video data into high-speed serial signals and transmit the high-speed serial signals to the corresponding external controller.
6. The video data splitting method according to claim 5, wherein the video data splitting system further comprises: an MCU module; the MCU module is respectively connected with the deserializer, the master path serializer and the slave path serializer; before the step of receiving the video data sent by the camera by the deserializer and respectively transmitting the video data to the master serializer and the slave serializer, the deserializer further comprises:
when the video data shunting system is started, the MCU module determines and connects a target serializer according to the state of a trigger signal input by the main serializer so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on the camera; the target serializer includes: the master serializer or the slave serializer.
7. The video data offloading method according to claim 6, wherein the MCU module is respectively connected to the deserializer GPI interface, the IIC interface, the GPO interface and the IIC interface of the master serializer, and the GPO interface and the IIC interface of the slave serializer; the MCU module determines and connects a target serializer according to the state of the trigger signal input by the main serializer so as to enable a target controller externally connected with the target serializer to carry out initialization configuration and trigger control on the camera, and the method comprises the following steps of:
the MCU module acquires the state of a trigger signal input by a GPO interface of the main road serializer and judges whether the working state of a main road controller externally connected with the main road serializer correspondingly is normal or not according to the state; if the working state of the main road controller is normal, determining the main road serializer as the target serializer; if the working state of the master controller is abnormal, determining the slave serializer as the target serializer; and connecting the IIC interface and the GPO interface of the target serializer so that a target controller externally connected with the target serializer initializes and configures a register of the camera through the IIC interface of the target serializer, and triggers an ISP (Internet service provider) of the camera through the GPO interface of the target serializer.
8. The video data offloading method of claim 5, wherein the deserializer is configured with a GMSL communication interface and a two-way 4-lane MIPI CSI-2 interface; the step of the deserializer receiving the video data sent by the camera and respectively transmitting the video data to the master serializer and the slave serializer includes:
and the deserializer receives the video data sent by the camera through a GMSL communication interface and respectively transmits the video data to the master serializer and the slave serializer through two paths of 4-lane MIPI CSI-2 interfaces.
9. The video data splitting method according to claim 6, wherein the method further comprises:
and in the running process of the video data shunting system, the MCU module detects the state of a trigger signal input by the target serializer in real time, and when the working state of the target controller is judged to be abnormal according to the state and the target controller is a master controller, the MCU module is switched to a slave controller which is externally connected with the slave serializer correspondingly and carries out initialization configuration and trigger control on the camera.
10. A camera data processing system, comprising: a camera, a master controller, a slave controller and a video data distribution system according to any one of claims 1 to 4;
the camera is connected with a deserializer in the video data shunting system;
the main path controller is connected with a main path serializer in the video data shunting system;
the slave channel controller is connected with a slave channel serializer in the video data shunting system;
the video data distribution system is used for distributing and storing the video data of the camera and is also used for supplying power to the POC of the camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210100033.8A CN114422737A (en) | 2022-01-27 | 2022-01-27 | Video data distribution system and method and camera data processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210100033.8A CN114422737A (en) | 2022-01-27 | 2022-01-27 | Video data distribution system and method and camera data processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114422737A true CN114422737A (en) | 2022-04-29 |
Family
ID=81279380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210100033.8A Pending CN114422737A (en) | 2022-01-27 | 2022-01-27 | Video data distribution system and method and camera data processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114422737A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114885103A (en) * | 2022-06-14 | 2022-08-09 | 智道网联科技(北京)有限公司 | Method and device for processing video data of multiple paths of vehicle-mounted cameras |
| CN115514941A (en) * | 2022-09-02 | 2022-12-23 | 苏州智行众维智能科技有限公司 | GMSL2 video bidirectional synchronous splitter |
-
2022
- 2022-01-27 CN CN202210100033.8A patent/CN114422737A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114885103A (en) * | 2022-06-14 | 2022-08-09 | 智道网联科技(北京)有限公司 | Method and device for processing video data of multiple paths of vehicle-mounted cameras |
| CN115514941A (en) * | 2022-09-02 | 2022-12-23 | 苏州智行众维智能科技有限公司 | GMSL2 video bidirectional synchronous splitter |
| CN115514941B (en) * | 2022-09-02 | 2024-01-30 | 苏州智行众维智能科技有限公司 | GMSL2 video bidirectional synchronous shunt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114422737A (en) | Video data distribution system and method and camera data processing system | |
| KR101575547B1 (en) | The error variance detection method of can communication system and the can communication system | |
| CN115733729B (en) | Communication fault processing method, system and equipment | |
| JPH09162782A (en) | Unit changeover device | |
| CN111373700B (en) | Communication system, controlled device, and control method of communication system | |
| CN111431668B (en) | Baud rate switching method based on multi-node UART communication, air conditioning system and processor | |
| CN113746644A (en) | Safe and effective network Bypass control method | |
| KR102029371B1 (en) | Power Supply system and method for ethernet communication network in vehicle | |
| EP1793626A1 (en) | System and method for implementing service switching | |
| KR101750497B1 (en) | System of rf transceiver duplexing and method thereof | |
| JP2004213412A (en) | Duplex controller | |
| KR102098048B1 (en) | Apparatus and method for controlling vehicle based on redundant architecture | |
| JP2518517B2 (en) | Communication bus monitoring device | |
| CN115348153B (en) | Control method, device, equipment and storage medium of forwarding equipment | |
| KR20220128095A (en) | Steering control apparatus and method | |
| CN114205398B (en) | Vehicle communication method and system | |
| JPH06214601A (en) | Back-up device for equipment controller | |
| JPH0475521B2 (en) | ||
| JPH09204324A (en) | Host state display system for monitoring terminal | |
| KR0135389B1 (en) | Transmitter | |
| JPH10228313A (en) | Monitoring device | |
| JPH0923254A (en) | Inter-system data link system | |
| JPH10294723A (en) | Multiplex communication system | |
| CN111988081A (en) | Redundant processing method and system for laser radar data | |
| JPH10154971A (en) | Multiplex communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |