Method and system for testing vehicle-mounted camera

Abstract

The embodiment of the present application provides a kind of vehicle camera factory test method and test system, the method comprises the following steps: using first equipment to the vehicle camera to be tested is carried out first kind of pre-delivery test to obtain first data;Obtain the identity information of vehicle camera, after the first data and identity information are associated, upload to the data sharing equipment that is communicatively connected with first equipment;Using second equipment to the vehicle camera that completes first kind of pre-delivery detection is carried out second kind of pre-delivery test to obtain second data;Obtain the identity information of vehicle camera, according to identity information, obtain the first data associated with identity information from data sharing equipment, one of first data and second data is MTF test data and the other is internal parameter calibration data;And first data and second data are collectively written into the Flash memory of vehicle camera.This embodiment can simultaneously store the MTF test data and internal parameter calibration data of vehicle camera into vehicle camera.

Description

Technical Field

[0001] This invention relates to the field of production and testing technology for vehicle-mounted cameras, and more particularly to a factory testing method for vehicle-mounted cameras. Background Technology

[0002] Currently, after the assembly of an automotive camera, MTF (Modulation Transfer Function) and intrinsic parameter calibration are typically performed at a final inspection testing station and an intrinsic parameter calibration station to obtain MTF test data and intrinsic parameter calibration data, respectively. The MTF test data is used to evaluate the image quality resolution of the camera. However, traditional intrinsic parameter calibration stations and final inspection testing stations are usually independent of each other. In addition, when the flash memory of the automotive camera is written to for secondary data, the original data stored inside is deleted. Therefore, when users require that both MTF test data and intrinsic parameter calibration data be stored in the flash memory of the automotive camera for traceability of test results, traditional factory testing methods for automotive cameras cannot achieve this. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a factory testing method for vehicle-mounted cameras, which can simultaneously store the MTF test data and internal parameter calibration data of the vehicle-mounted camera inside the vehicle-mounted camera.

[0004] A further technical problem to be solved by the embodiments of the present invention is to provide a factory testing system for vehicle-mounted cameras, which can simultaneously store the MTF test data and internal parameter calibration data of the vehicle-mounted camera inside the vehicle-mounted camera.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide the following technical solution: a factory testing method for an in-vehicle camera, comprising the following steps: The first device is used to conduct the first type of pre-shipment test on the vehicle-mounted camera to be tested to obtain the first data. Obtain the identity information of the vehicle camera, associate the first data with the identity information, and upload it to a data sharing device that is connected to the first device. A second device is used to perform a second pre-shipment test on the vehicle-mounted camera that has completed the first type of pre-shipment inspection to obtain second data. Obtain the identity information of the vehicle-mounted camera, and based on the identity information, obtain first data associated with the identity information from the data sharing device, wherein one of the first data and the second data is MTF test data and the other is internal parameter calibration data; and The first data and the second data are written together into the Flash memory of the vehicle camera.

[0006] Furthermore, the data sharing device is an MES system.

[0007] Furthermore, the outer surface of the vehicle-mounted camera is formed with an coded identifier based on the identity information of the vehicle-mounted camera, and the identity information of the vehicle-mounted camera is obtained from the coded identifier.

[0008] Furthermore, the encoded identifier is a scannable and identifiable code, and the identity information is obtained by scanning and parsing the scannable and identifiable code using a scanning device.

[0009] Furthermore, the identity information is a serial number.

[0010] Furthermore, the first data is MTF test data, and the second data is internal parameter calibration data.

[0011] On the other hand, in order to solve the above-mentioned further technical problems, the present invention provides the following technical solution: a factory testing system for an in-vehicle camera, comprising a first device for performing a first type of pre-factory test on the in-vehicle camera to be tested to obtain first data, a second device for performing a second type of pre-factory test on the in-vehicle camera to be tested to obtain second data, a data sharing device communicatively connected to the first device to receive and store the first data uploaded by the first device, and a data writing device connected to the data sharing device and the second device for downloading the first data from the data sharing device and writing the first data and the second data together into the Flash memory of the in-vehicle camera.

[0012] Furthermore, the data sharing device and the data writing device are integrated into one unit.

[0013] Furthermore, the data sharing device is a data cache built into the data writing device.

[0014] After adopting the above technical solution, the embodiments of the present invention have at least the following beneficial effects: After the first device completes the first type of pre-shipment test on the vehicle camera, the embodiments of the present invention first obtain the identity information of the vehicle camera, then associate the first data obtained from the test with the identity information and upload it to the data sharing device, and then use the second device to perform a second type of pre-shipment test on the vehicle camera to obtain the second data, and then obtain the identity information of the vehicle camera again. At this time, the first data associated with the identity information can be obtained from the data sharing device according to the identity information. Finally, the first data and the second data are written together into the Flash memory of the vehicle camera. Since one of the first data and the second data is MTF test data and the other is internal parameter calibration data, the MTF test data and the internal parameter calibration data are simultaneously stored inside the vehicle camera. Attached Figure Description

[0015] Figure 1 This is a flowchart of an optional embodiment of the factory testing method for the vehicle-mounted camera of the present invention.

[0016] Figure 2 This is a process principle block diagram of an optional embodiment of the factory testing method for the vehicle-mounted camera of the present invention. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. Moreover, the embodiments and features in the embodiments of the present application can be combined with each other unless otherwise specified.

[0018] like Figure 1 and Figure 2 As shown, an optional embodiment of the present invention provides a factory testing method for an in-vehicle camera, comprising the following steps: S1: The first device 1 is used to perform a first type of pre-shipment test on the vehicle-mounted camera 2 to be tested to obtain first data; S2: Obtain the identity information of the vehicle camera 2, associate the first data with the identity information, and upload it to the data sharing device 3 that is connected to the first device 1. S3: Use the second device 4 to perform a second pre-shipment test on the vehicle camera 2 that has completed the first pre-shipment test to obtain second data; S4: Obtain the identity information of the vehicle-mounted camera 2, and obtain first data associated with the identity information from the data sharing device 3 based on the identity information; and S5: Write the first data and the second data together into the Flash memory 20 of the vehicle camera 2.

[0019] In this embodiment of the invention, after the first device 1 completes the first type of pre-shipment test on the vehicle-mounted camera 2, the identity information of the vehicle-mounted camera 2 is first obtained. Then, the first data obtained from the test is associated with the identity information and uploaded to the data sharing device 3. Further, the second device 4 is used to perform a second type of pre-shipment test on the vehicle-mounted camera 2 to obtain second data. After obtaining the identity information of the vehicle-mounted camera 2 again, the first data associated with the identity information can be obtained from the data sharing device 3 according to the identity information. Finally, the first data and the second data are written together into the Flash memory 20 of the vehicle-mounted camera 2. Since one of the first data and the second data is MTF test data and the other is internal parameter calibration data, the MTF test data and the internal parameter calibration data are stored in the vehicle-mounted camera 2 at the same time.

[0020] In an optional embodiment of the present invention, the data sharing device 3 is an MES (Manufacturing Execution System). In this embodiment, the MES system is used as the data sharing device 3 because it has wide applications and can share information and data with various testing devices of the vehicle-mounted camera 2, making implementation convenient.

[0021] In an optional embodiment of the present invention, the outer surface of the vehicle-mounted camera 2 is formed with an coded identifier based on the identity information encoding of the vehicle-mounted camera 2, and the identity information of the vehicle-mounted camera 2 is obtained from the coded identifier. In this embodiment, the corresponding identity information is directly obtained through the coded identifier on the outer surface of the vehicle-mounted camera 2, achieving an effective one-to-one correspondence and reducing the likelihood of errors.

[0022] In an optional embodiment of the present invention, such as Figure 2 As shown, the encoded identifier is a scannable and identifiable code. The identity information is obtained by scanning and parsing the scannable and identifiable code using a barcode scanning device 5. In this embodiment, the encoded identifier is a scannable and identifiable code, and the identity information can be obtained directly by scanning and parsing using the barcode scanning device 5, which is fast and helps to improve testing efficiency.

[0023] In an optional embodiment of the present invention, the identity information is a serial number. In this embodiment, the identity information is a serial number, which can accurately correspond one-to-one with the vehicle-mounted camera, facilitating traceability.

[0024] In an optional embodiment of the present invention, the first data is MTF test data, and the second data is intrinsic parameter calibration data. Typically, in the testing pipeline for the vehicle-mounted camera 2, MTF testing precedes intrinsic parameter calibration. This embodiment, through the above-described configuration, eliminates the need to adjust the existing testing pipeline, thus improving testing efficiency. In specific implementations, such as... Figure 2 As shown, it can be understood that steps S1 and S2 are both completed at the MTF testing station of the vehicle-mounted camera 2; while steps S3-S5 are all completed at the internal parameter calibration station of the vehicle-mounted camera 2.

[0025] On the other hand, such as Figure 2 As shown in the figure, this embodiment of the invention provides a factory testing system for an in-vehicle camera, including a first device 1 for performing a first type of pre-shipment test on the in-vehicle camera 2 to obtain first data, a second device 4 for performing a second type of pre-shipment test on the in-vehicle camera 2 to obtain second data, a data sharing device 3 communicatively connected to the first device 1 to receive and store the first data uploaded by the first device 1, and a data writing device 6 connected to the data sharing device 3 and the second device 4 for downloading the first data from the data sharing device 3 and writing the first data and the second data together into the Flash memory 20 of the in-vehicle camera 2. In this embodiment, the factory testing system for the in-vehicle camera also achieves data sharing between different testing devices by using the data sharing device 3, and then uses the data writing device 6 to uniformly write all the test data into the Flash memory 20 of the in-vehicle camera 2 at the last testing device, which has high testing efficiency and meets user needs.

[0026] In an optional embodiment of the present invention, the data sharing device 3 and the data writing device 6 are integrated into one unit. In this embodiment, integrating the data sharing device 3 and the data writing device 6 into one unit effectively simplifies the overall structure and optimizes the layout.

[0027] In an optional embodiment of the present invention, the data sharing device 3 is a data buffer built into the data writing device 6. In this embodiment, the data sharing device 3 uses a data buffer built into the data writing device 6, which can effectively simplify the overall structure and optimize the layout. After the first device 1 completes the test on the vehicle camera 2, the first data can be directly cached in the data writing device 6, and after the second device 4 completes the test on the vehicle camera 2, the first data and the second data are jointly written into the Flash memory 20 of the vehicle camera 2.

[0028] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of the present invention.

Claims

1. A factory testing method for an in-vehicle camera, characterized in that, The method includes the following steps: The first device is used to conduct the first type of pre-shipment test on the vehicle-mounted camera to be tested to obtain the first data. Obtain the identity information of the vehicle camera, associate the first data with the identity information, and upload it to a data sharing device that is connected to the first device. A second device is used to perform a second pre-shipment test on the vehicle-mounted camera that has completed the first pre-shipment test to obtain second data. Obtain the identity information of the vehicle-mounted camera, and based on the identity information, obtain first data associated with the identity information from the data sharing device, wherein one of the first data and the second data is MTF test data and the other is internal parameter calibration data; and The first data and the second data are written together into the Flash memory of the vehicle camera.

2. The factory testing method for an in-vehicle camera as described in claim 1, characterized in that, The data sharing device is an MES system.

3. The factory testing method for an in-vehicle camera as described in claim 1, characterized in that, The outer surface of the vehicle-mounted camera is formed with an coded identifier based on the identity information of the vehicle-mounted camera, and the identity information of the vehicle-mounted camera is obtained from the coded identifier.

4. The factory testing method for an in-vehicle camera as described in claim 3, characterized in that, The coded identifier is a scannable and identifiable code. The identity information is obtained by scanning and parsing the scannable and identifiable code using a barcode scanning device.

5. The factory testing method for an in-vehicle camera as described in claim 1, characterized in that, The identity information is a serial number.

6. The factory testing method for an in-vehicle camera as described in any one of claims 1-5, characterized in that, The first data is MTF test data, and the second data is internal parameter calibration data.

7. A factory testing system for an in-vehicle camera, comprising a first device for performing a first type of pre-shipment test on the in-vehicle camera to be tested to obtain first data, and a second device for performing a second type of pre-shipment test on the in-vehicle camera to be tested to obtain second data, characterized in that, The system further includes a data sharing device communicatively connected to the first device to receive and store the first data uploaded by the first device, and a data writing device connected to the data sharing device and a second device for downloading the first data from the data sharing device and writing the first data and the second data together into the Flash memory of the vehicle camera. The first data is first associated with the identity information of the vehicle camera before being uploaded to the data sharing device. The first data is downloaded from the data sharing device based on the identity information of the vehicle camera. One of the first data and the second data is MTF test data and the other is internal parameter calibration data.

8. The factory testing system for an in-vehicle camera as described in claim 7, characterized in that, The data sharing device and the data writing device are integrated into one unit.

9. The factory testing system for an in-vehicle camera as described in claim 7, characterized in that, The data sharing device is a data cache built into the data writing device.

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