Data communication device for vehicle-mounted camera software management

Abstract

The embodiment of the utility model provides a data communication device for vehicle-mounted camera software management, which comprises a PCB (Printed Circuit Board) provided with a first interface and a second interface; the IIC communication module is used for converting an initial data signal output by external equipment into a target data signal based on an IIC communication protocol, the first interface is a USB port with a data terminal and a power supply terminal, and the IIC communication module is connected with the data terminal and the power supply terminal; the voltage conversion module is used for converting the initial voltage output by the power supply terminal into target voltage; the voltage conversion module supplies the target voltage to the deserializer, and the deserializer is further connected with the IIC communication module to deserialize the target data signal to generate a deserialized data signal; and the second interface is a coaxial connector, is respectively connected with the deserializer and the voltage conversion module, and is used for externally connecting a vehicle-mounted camera through a coaxial line, sending a deserialized data signal to the vehicle-mounted camera and supplying target voltage to the vehicle-mounted camera. The embodiment of the utility model is more convenient to use.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of in-vehicle camera software upgrade devices, and in particular to a data communication device for in-vehicle camera software management. Background Art

[0002] Currently, in order to implement software management operations such as software upgrade and parameter debugging for GMSL in-vehicle cameras, an external device (e.g., a computer) storing upgrade data and configuration parameters waiting for programming data is usually connected to the in-vehicle camera through a data communication device to achieve data interaction. Since the existing in-vehicle cameras use a serializer to process data and cannot be compatible with the programming data output by the external device, the data communication device needs to perform corresponding conversion on the data output by the external device. The existing data communication device mainly includes an IIC interface board and a deserialization board connected in series. Among them, the IIC interface board is used to connect to the external device to convert the initial data signal containing the programming data output by the external device into a target data signal based on the IIC communication protocol and then send it to the deserialization board. The deserialization board deserializes the target data signal to generate a deserialized data signal, and then sends the deserialized data signal to the in-vehicle camera for processing based on the coaxial transmission protocol.

[0003] However, the inventor found during specific implementation that due to the different operating voltages of the IIC interface board and the deserialization board in the existing data communication device, when in use, the IIC interface board can be powered by the external device, while the deserialization board requires an additional power supply, resulting in complex wiring and inconvenient use. Moreover, the IIC interface board and the deserialization board are independently set and connected by cables, which is inconvenient for manufacturing and assembly. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the present utility model is to provide a data communication device for in-vehicle camera software management, which can be more convenient to use.

[0005] To solve the above technical problem, the embodiments of the present utility model provide the following technical solutions: A data communication device for in-vehicle camera software management, comprising:

[0006] A PCB board provided with a first interface for connecting to an external device and a second interface for connecting to an in-vehicle camera; and

[0007] The IIC communication module is integrally provided on the PCB board and connected to the first interface, and is used to convert the initial data signal output by an external device into a target data signal based on the IIC communication protocol. The first interface is a USB port having a data terminal and a power terminal. The IIC communication module is connected to the data terminal and the power terminal of the USB port to receive the initial data signal and the initial voltage output by the external device;

[0008] The voltage conversion module is integrally provided on the PCB board and connected to the power terminal of the USB port, and is used to convert the initial voltage output by the power terminal into a target voltage; and

[0009] The deserializer is connected to the voltage conversion module, and the voltage conversion module supplies the target voltage to the deserializer. The deserializer is also connected to the IIC communication module to deserialize the target data signal to generate a deserialized data signal;

[0010] The second interface is a coaxial connector and is respectively connected to the deserializer and the voltage conversion module, and is used to externally connect a vehicle-mounted camera through a coaxial cable to send the deserialized data signal to the vehicle-mounted camera and supply the target voltage to the vehicle-mounted camera.

[0011] Further, the coaxial connector is a Fakra connector.

[0012] Further, the USB port is a Type-C port.

[0013] Further, the deserializer is also integrally provided on the PCB board.

[0014] After adopting the above technical solution, the embodiment of the present utility model has at least the following beneficial effects: By integrally providing a traditional IIC communication module and a deserializer in a data communication device at the same time, the embodiment of the present utility model is relatively more convenient to use. Moreover, the first interface adopts a USB port, which is convenient for the data communication device to dock with an external device to obtain an initial voltage and an initial data signal; the IIC communication module can directly obtain the initial voltage supply from the power terminal of the USB port, and by adding a voltage conversion module to convert the initial voltage output by the power terminal of the USB port into a target voltage, and then using the target voltage obtained by the conversion of the voltage conversion module to supply power to the deserializer, so that there is no need to externally connect a power supply; in addition, through a coaxial connector for data transmission based on the coaxial transmission protocol, not only can the deserialized data signal be sent to the vehicle-mounted camera, but also power can be supplied to the vehicle-mounted camera, effectively realizing software upgrade or debugging. Description of the Drawings

[0015] Figure 1The figure is a schematic block diagram of an alternative embodiment of the data communication device for in-vehicle camera software management according to the present utility model. Detailed implementation manners

[0016] The present application will be further described in detail below 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 utility model and are not intended to limit the present utility model. Moreover, the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

[0017] As Figure 1 shown, an alternative embodiment of the present utility model provides a data communication device 1 for in-vehicle camera software upgrade, including:

[0018] A PCB board 10 is provided with a first interface 101 for connecting to an external device 3 and a second interface 103 for connecting to an in-vehicle camera 5;

[0019] An IIC communication module 12 is integrally disposed on the PCB board 1 and connected to the first interface 101, and is configured to convert an initial data signal output by the external device 3 into a target data signal based on the IIC communication protocol. The first interface 101 is a USB port having a data terminal 101a and a power terminal 101b. The IIC communication module 12 is connected to the data terminal 101a and the power terminal 101b of the USB port 101 to receive the initial data signal and the initial voltage output by the external device 3;

[0020] A voltage conversion module 14 is integrally disposed on the PCB board 10 and connected to the power terminal 101b of the USB port 101, and is configured to convert the initial voltage output by the power terminal 101b into a target voltage;

[0021] A deserializer 16 is connected to the voltage conversion module 14 and the voltage conversion module 14 supplies the target voltage to the deserializer 16. The deserializer 16 is further connected to the IIC communication module 12 to deserialize the target data signal to generate a deserialized data signal; and

[0022] The second interface 103 is a coaxial connector and is respectively connected to the deserializer 16 and the voltage conversion module 14, and is configured to externally connect to the in-vehicle camera 5 through a coaxial cable to send the deserialized data signal to the in-vehicle camera 5 and supply the target voltage to the in-vehicle camera.

[0023] In the embodiment of the present utility model, a traditional IIC communication module 12 and a deserializer 16 are integrally provided in a data communication device 1, which is relatively more convenient to use. Moreover, the first interface 101 adopts a USB port, which facilitates the docking of the data communication device 1 with an external device 3 to obtain an initial voltage and an initial data signal; the IIC communication module 12 can directly obtain the initial voltage supply from the power terminal 101b of the USB port 101, and the initial voltage output from the power terminal 101b of the USB port 101 is converted into a target voltage by adding a voltage conversion module 14, and then the target voltage obtained by the conversion of the voltage conversion module 14 is used to supply power to the deserializer 16, so that there is no need to externally connect a power supply; in addition, data is transmitted based on a coaxial transmission protocol through a coaxial connector 103, which can not only send the deserialized data signal to the vehicle-mounted camera 5, but also supply power to the vehicle-mounted camera 5, effectively realizing software upgrade or debugging.

[0024] Specifically, the voltage conversion module 14 can be implemented by using an LDO linear voltage regulator or a DC-DC voltage conversion circuit. Among them, the initial voltage can be 5V and the target voltage can be 12V.

[0025] In an optional embodiment of the present utility model, the coaxial connector 103 is a Fakra connector. In this embodiment, as a common coaxial connector, the Fakra connector is widely used in various automotive electrical equipment. The coaxial connector 103 adopts a Fakra connector, which has strong compatibility.

[0026] In an optional embodiment of the present utility model, the USB port 101 is a Type-C port. In this embodiment, the USB port 101 adopts a Type-C port in the USB interface standard. The Type-C port has a wide range of applications and higher versatility. When plugging and unplugging, there is no need to distinguish between the front and the back, which is convenient to use.

[0027] In an optional embodiment of the present utility model, as Figure 1 shown, the deserializer 16 is also integrally provided on the PCB board 10. In this embodiment, by also integrally providing the deserializer 16 on the PCB board 10, the occupied volume of the data communication device 1 can be effectively reduced, which is convenient for carrying and using.

[0028] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose and scope protected by the claims of the present utility model. These all fall within the protection scope of the present utility model.

Claims

1. A data communication device for vehicle-mounted camera software management, comprising: A PCB board, provided with a first interface for connecting to an external device and a second interface for connecting to a vehicle-mounted camera; as well as An IIC communication module, which is integrated on the PCB and connected to the first interface, and is used to convert an initial data signal output by an external device into a target data signal based on the IIC communication protocol; Characterized in that the first interface is a USB port having a data terminal and a power terminal, and the IIC communication module is connected to the data terminal and the power terminal of the USB port to receive the initial data signal and the initial voltage output by the external device; The data communication device also includes: a voltage conversion module, which is integrated on the PCB board and connected to the power terminal of the USB port, and is used to convert the initial voltage output by the external device via the power terminal into a target voltage; and a deserializer, connected to the voltage conversion module and supplied with the target voltage by the voltage conversion module, the deserializer also being connected to the IIC communication module and deserializing the target data signal to generate a deserialized data signal; The second interface is a coaxial connector and is respectively connected to the deserializer and the voltage conversion module, and is used to connect an external vehicle-mounted camera via a coaxial line to send the deserialized data signal to the vehicle-mounted camera and supply the target voltage to the vehicle-mounted camera.

2. The data communication device for vehicle-mounted camera software management according to claim 1, characterized in that: The coaxial connector is a Fakra connector.

3. The data communication device for vehicle-mounted camera software management according to claim 1, characterized in that: The USB port is a Type-C port.

4. The data communication device for vehicle-mounted camera software management according to any one of claims 1 to 3, characterized in that: The deserializer is also integrated on the PCB board.

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