CN217825143U

CN217825143U - Multi-path data acquisition card

Info

Publication number: CN217825143U
Application number: CN202221858751.3U
Authority: CN
Inventors: 雷冲; 李久滔
Original assignee: Yin Chuang Technology Shanghai Co ltd
Current assignee: Yin Chuang Technology Shanghai Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-15
Anticipated expiration: 2032-07-19

Abstract

The embodiment of the utility model discloses a multichannel data acquisition card, which comprises a serializer, a data acquisition module and a data acquisition module, wherein the serializer is used for connecting a camera; an ethernet PHY for interfacing with a radar; the MCU is configured through an I2C interface; the deserializer can work normally and receive the synchronous signal sent by the ECU and transmit the synchronous signal to the FPGA; the FPGA receives an image signal of the serializer through the MIPI interface and receives radar data through the internet access, the FPGA transmits the radar data to the ECU through the PCIE after synchronizing the radar data with the image signal, the FPGA converts the image data into lvds and transmits the lvds to the next system through the sequencer, the FPGA converts the image into the HDMI for debugging, the MCU receives a synchronizing signal of an external ECU, the MCU forwards the synchronizing signal to the FPGA, and the FPGA transmits the image and the radar out through the PCIE after synchronizing the image and the radar; the embodiment of the utility model provides a support a plurality of cameras and laser radar's data acquisition, be applicable to car unmanned driving.

Description

Multi-path data acquisition card

Technical Field

The utility model relates to a data acquisition technical field, in particular to multichannel data acquisition card.

Background

With the rapid development of safety assistance and unmanned technologies, images of the entire machine vision system play an important role. The requirement of system operation can be met only by simultaneously operating a plurality of cameras and radars, the quality of images is higher and higher, and the existing data acquisition card used for the automobile can only detect the driving data of the automobile, such as signals of temperature, voltage, current, switches and the like, and cannot be used in the field of unmanned driving.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a multichannel data acquisition card supports a plurality of cameras and laser radar's data acquisition, is applicable to car unmanned driving, has filled the blank in this field.

The embodiment of the utility model discloses multichannel data acquisition card, include:

a serializer for connecting a camera;

an ethernet PHY for connecting to a radar;

the FPGA receives an image signal of the serializer through the MIPI interface and receives radar data through the internet access, the FPGA transmits the radar data to the ECU through the PCIE after synchronizing the radar data with the image signal, the FPGA converts the image data into lvds and transmits the lvds to the next system through the sequencer, and the FPGA converts the image into the HDMI for debugging;

and the MCU receives a synchronization signal of the external ECU, the MCU forwards the synchronization signal to the FPGA, and the PCIE transmits the image and the radar after the FPGA synchronizes the image and the radar.

The image signal processing board receives and processes the image signal of the serializer, and transmits the processed image signal to the FPGA through the MIPI.

Further, 2 serializers connected with the cameras are arranged, and each serializer is connected with 4 cameras.

Further, the ethernet PHY is connected to 2 radars.

Further, the MCU is electrically connected with the serializer and the Ethernet PHY, the MCU sends a synchronizing signal to the FPGA, and the FPGA synchronizes the image of the camera with the signal of the radar.

Further, each radar transmits data through a gigabit network.

Further, the serializers are connected to connectors, which are Fakra connectors, for transmission of commands and video signals.

Furthermore, when an image deserializing and converting circuit is arranged in the serializer, the serializer deserializes and converts the received image signal, converts the received image signal into an MIPI signal and then transmits the MIPI signal to the FPGA.

The embodiment of the utility model provides an use a plurality of cameras to shoot vehicle all ring edge borders, use the radar to explore the peripheral condition of vehicle, support a plurality of cameras and laser radar's data acquisition, be applicable to car unmanned driving, filled the blank in this field.

Drawings

Fig. 1 is a schematic view of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a connector according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an image decoding string and a conversion circuit according to an embodiment of the present invention.

Fig. 4 is a flowchart illustrating the operation of the present invention.

Fig. 5 is a block diagram of an 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in the figure, the embodiment of the utility model discloses multichannel data acquisition card, include:

a serializer for connecting the camera 1;

an ethernet PHY for connecting the radar 2;

the FPGA receives the image signal of the serializer through the MIPI interface and receives the radar data through the network port, the FPGA transmits the radar data and the image signal to the ECU through the PCIE after synchronizing the radar data and the image signal, the FPGA converts the image data into the lvds and transmits the lvds to the next system through the sequencer, and the FPGA converts the image into the HDMI for debugging;

MCU, MCU receives the synchronizing signal of outside ECU, and MCU configures through the I2C interface, and MCU forwards synchronizing signal to FPGA, and FPGA is after synchronizing camera 1's image and radar's signal, and is spread by PCIE. The utility model discloses use a plurality of cameras to carry out image acquisition, can support the data acquisition of 8 way 8 megapixel cameras and lidar's data acquisition. The utility model discloses realize the synchronization of camera 1 and radar 2, can support the simulation under the unmanned system complex condition, for example traffic accident, climate change etc. has compensatied the blank in this aspect. By using the FPGA, the processing speed is improved. For intelligent driving and unmanned driving, data acquisition is the core of subsequent work, and the speed and the amount of the data acquisition determine whether the intelligent driving and the unmanned driving can achieve the target performance. The synchronization of the radar and the camera can enable the processor to rapidly process the acquired image data to complete the preset target.

The utility model discloses an in the embodiment, still include the image signal processing board, the built-in image of image signal processing board deserializes and converting circuit, and the image signal of serializer is received and handled to the image signal processing board, and the image signal after the image signal processing board will be handled passes through MIPI interface transmission to FPGA.

In an embodiment of the present invention, the serializers connected to the cameras are provided with 2, and each serializer is connected to 4 cameras.

In an embodiment of the present invention, the ethernet PHY connects 2 radars. The utility model discloses an 8 way 8 megapixels's camera image data collection, efficiency is higher.

The utility model discloses an in the embodiment, MCU is connected with serializer and ethernet PHY electricity, and MCU sends synchronizing signal to serializer and ethernet PHY, and serializer and ethernet PHY send synchronous model to camera and radar.

In an embodiment of the present invention, each radar transmits data through the gigabit network, respectively. Two giga networks transmit radar data simultaneously, and efficiency is higher, and speed is faster.

In an embodiment of the present invention, the serializer is connected to a connector, which is a Fakra connector for transmission of commands and video signals.

The utility model discloses an embodiment, when the serializer built-in image deserialize and converting circuit, the serializer carries out deserializing and conversion with the image signal who receives, transmits to FPGA after the image signal who will receive after being converted into the MIPI signal.

As shown in fig. 4, it is a flowchart of an embodiment of the present invention. The method comprises the following specific steps:

1. through MCU, through the I2C interface deserializer is disposed specifically, make it work normally;

2. after image acquisition, serial transmission is carried out;

3. after deserializing and converting the image, transmitting the image to the FPGA through an MIP interface;

4. radar data are received through a network and transmitted to the FPGA;

5. the MCU receives a synchronizing signal of the external ECU, the MCU forwards the synchronizing signal to the FPGA, and the PCIE transmits the synchronizing signal to the FPGA after the FPGA synchronizes the image and the FPGA receives radar data through the network

6. Converting the image data into lvds, and transmitting the lvds to the next system through serialization;

7. and converting the image into HDMI for debugging and use.

As shown in fig. 5, a structural block diagram of an embodiment of the present invention is as follows:

a connector Fakra interface 11 for the transmission of commands and video signals.

The deserializing chip 12 deserializes the received serial signal into a mipi signal for the next stage.

The image signal processing board 3 sends the mipi signal to the FPGA for signal conversion.

The FPGA synchronizes the received image data with the radar data and sends the image data and the radar data to the ECU through the PCIE interface 4.

The label 5 is the power interface and supplies power.

Reference 6 is the MCU for commanding the setting of control signals.

Reference 7 is a network transmission circuit for receiving radar data.

The label 8 is LVDS and the serialized data is passed to the next system.

The label 9 is an HDMI debug interface circuit.

The mark 10 is an interface for receiving ECU synchronization signals by the MCU, and then the signals are forwarded to the FPGA for synchronization of radar data and images;

the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A multi-channel data acquisition card, comprising:

a serializer for connecting a camera;

an ethernet PHY for connecting to a radar;

2. The multi-channel data acquisition card according to claim 1, further comprising an image signal processing board, wherein the image signal processing board is internally provided with an image deserializing and converting circuit, the image signal processing board receives and processes the image signal of the serializer, and the image signal processing board transmits the processed image signal to the FPGA through the MIPI interface.

3. A multi-channel data acquisition card according to claim 1 wherein there are 2 serializers connected to the cameras, 4 cameras being connected to each serializer.

4. A multi-channel data acquisition card according to claim 3, characterized in that the ethernet PHY is connected to 2 radars.

5. The multi-channel data acquisition card according to claim 4, wherein the MCU is electrically connected to the serializer and the Ethernet PHY, the MCU sends a synchronization signal to the FPGA, and the FPGA synchronizes the image of the camera with the radar signal.

6. A multi-channel data acquisition card according to claim 1 wherein each radar transmits data over a gigabit network.

7. A multi-channel data acquisition card according to claim 1, wherein the serialisation engine is connected to a connector, the connector being a Fakra connector for the transmission of command and video signals.

8. The multi-channel data acquisition card according to claim 7, wherein when the serializer incorporates an image deserializing and converting circuit, the serializer deserializes and converts the received image signal, converts the received image signal into an MIPI signal, and transmits the MIPI signal to the FPGA.