Forward-looking radar all-in-one machine

Abstract

The utility model discloses a foresight radar all-in-one machine, which comprises an upper shell, a control panel and a lower shell, the upper shell is fixedly connected with the lower shell, the control panel is arranged in a cavity formed by the upper shell and the lower shell, and an antenna housing and a foresight camera are arranged on the outer wall of the upper shell; the control panel comprises a millimeter-wave radar radio frequency module, a radar baseband module and a control circuit module, the millimeter-wave radar radio frequency module and the radar baseband module are arranged opposite to the antenna housing, and the foresight camera is electrically connected with the control circuit module. According to the foresight radar all-in-one machine provided by the utility model, the foresight all-in-one machine and the forward millimeter wave radar are highly integrated, the circuit is simplified, the whole machine is beautiful and very beneficial to hiding, the cost of hardware is reduced, and the camera and radar signals are fused to give more response time to a driver.

Description

Technical Field

[0001] The utility model relates to a front view radar integrated machine. Background Art

[0002] Currently, in the prior art, for intelligent driving assistance solutions at L2 level and below, a front view camera integrated machine is usually adopted, or it is implemented in cooperation with a single forward millimeter wave radar. Both the front view camera integrated machine and the forward millimeter wave radar in such traditional solutions are independent modules. When used in cooperation, they can achieve rich scene recognition capabilities, including supporting adaptive cruise, automatic emergency braking, lane departure warning, traffic sign recognition, etc., and are commonly used intelligent driving assistance solutions.

[0003] The front view camera integrated machine and the forward millimeter wave radar belong to independent modules, and each has its own mounting bracket, communication and power supply wire harnesses, etc. The current fierce competition situation in the intelligent driving assistance system makes it very challenging to reduce the cost of the solution. Due to the rigid demand for hardware installation in traditional solutions, it is difficult to reduce the solution cost while ensuring performance. To sum up, the prior art has the following defects:

[0004] (1) Since the traditional front view integrated machine and the paired millimeter wave radar are independent modules, there are great challenges in the process of reducing the cost of the solution.

[0005] (2) For the intelligent driving solution of the traditional integrated machine and the forward millimeter wave radar, the two independent modules of the integrated machine and the radar communicate through wire harnesses, and their control circuit modules are completely separated. This not only causes waste of space, but also there will be a lag in giving prompt information compared with the integrated module using the same control module.

[0006] (3) The front view integrated machine has a SOC chip with powerful processing capabilities, and the forward millimeter wave radar has an MCU chip for signal processing. There is performance redundancy in signal processing between the two. Content of the Utility Model

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a front view radar integrated machine, which highly integrates the front view integrated machine and the forward millimeter wave radar, simplifies the circuit, is overall beautiful and very conducive to hiding, realizes cost reduction of hardware, and fuses the signals of the camera and the radar, giving the driver more reaction time.

[0008] To solve the above technical problems, the technical solution of the utility model is:

[0009] A forward-looking radar integrated unit, which comprises an upper housing, a control board and a lower housing. The upper housing is fixedly connected to the lower housing. The control board is arranged in a cavity formed by the upper housing and the lower housing. An antenna cover and a forward-looking camera are arranged on the outer wall of the upper housing.

[0010] The control board includes a millimeter-wave radar RF module, a radar baseband module and a control circuit module. The millimeter-wave radar RF module and the radar baseband module are arranged opposite to the antenna cover. The forward-looking camera is electrically connected to the control circuit module. The output end of the millimeter-wave radar RF module is connected to the input end of the radar baseband module. The output end of the radar baseband module is electrically connected to the control circuit module.

[0011] Furthermore, the control board further includes a first board-level connector. The forward-looking camera is electrically connected to the control circuit module through the first board-level connector.

[0012] Furthermore, the control board further includes a second board-level connector. The control circuit module is electrically connected to the vehicle body domain controller through the second board-level connector.

[0013] Furthermore, the control circuit module includes a power supply module, an SOC processing module and an MCU control module. The output end of the radar baseband module is electrically connected to the SOC processing module. The forward-looking camera is electrically connected to the SOC processing module through the first board-level connector. The SOC processing module is electrically connected to the MCU control module. The MCU control module is electrically connected to the vehicle body domain controller through the second board-level connector.

[0014] Furthermore, the power supply module includes a PMIC power manager, a first LDO linear voltage regulator and a second LDO linear voltage regulator. The PMIC power manager supplies power to the SOC processing module through the first LDO linear voltage regulator. The PMIC power manager supplies power to the MCU control module through the second LDO linear voltage regulator.

[0015] Adopting the above technical solutions, the utility model has the following beneficial effects:

[0016] 1. The utility model integrates the forward millimeter-wave radar installed inside the front bumper in the traditional solution into the forward-looking integrated unit, which can eliminate the forward radar bracket and connecting wire harness in the front bumper and directly reduce costs in terms of hardware.

[0017] 2. The front vision integrated machine and the forward millimeter-wave radar module of the present utility model are highly integrated. The MCU used to process the radar point cloud signal in the traditional forward millimeter-wave radar is processed by the SOC of the front vision integrated machine, greatly simplifying the complexity of the circuit and achieving cost reduction of the hardware of the forward radar. The radar baseband module directly transmits the pre-collision information to the SOC of the integrated machine, and completes the fusion of the front vision camera and radar signals within the SOC, realizing the in-module transmission of warning information and giving the driver more reaction time. In terms of structure, certain design and optimization are carried out on the shape, which is overall beautiful and very conducive to hiding. The integrated machine is installed behind the front windshield of the vehicle. Compared with the traditional forward millimeter-wave radar installed inside the front bumper, the risk of being damaged by collision is smaller, and the later maintenance cost is also lower. Installed behind the front windshield of the vehicle, compared with the traditional forward millimeter-wave radar installed inside the front bumper, the overall installation position is higher, the viewing angle of the radar is wider, and there is no obstruction of the bumper directly in front of the radar, so the radar performance is more excellent. Description of the Drawings

[0018] Figure 1 is an exploded schematic view of a front vision radar integrated machine of the present utility model;

[0019] Figure 2 is a structural schematic view of the upper housing of the present utility model;

[0020] Figure 3 is a structural schematic view of the control board of the present utility model;

[0021] Figure 4 is a structural schematic view of the lower housing of the present utility model;

[0022] Figure 5 is the circuit schematic diagram of the control board of the present utility model. Detailed Embodiment

[0023] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments and in conjunction with the drawings.

[0024] As Figure 1 , 2 shown, this embodiment provides a front vision radar integrated machine, which includes an upper housing 1, a control board 2 and a lower housing 3. The upper housing 1 is fixedly connected to the lower housing 3. The control board 2 is arranged in the cavity formed by the upper housing 1 and the lower housing 3. The outer wall of the upper housing 1 is provided with an antenna cover 11 and a front vision camera 12. As Figure 4 shown, screw mounting holes are opened at the four corners of the lower housing 3, and through holes for the screws 31 to pass through are correspondingly opened at the four corners of the control board 2. The four screws 31 sequentially pass through the lower housing 3 and the control board 2 and then are connected to the threaded holes of the upper housing 1.

[0025] The radome 11 is made of a wave-transparent material to minimize the propagation loss introduced in the signal propagation path of the radar antenna, while protecting and hiding the control board 2 to ensure the aesthetic appearance of the overall look. The thickness of the shaded area of the radome 11 is uniform and maintained at an integer multiple of the half-wavelength at the operating frequency of 77 GHz to reduce the path loss during propagation; similarly, the height of the radome 11 from the radar antenna also needs to be controlled at an integer multiple of the half-wavelength of the operating frequency. The front-view camera 12 is fixed and installed through the camera mounting holes on the upper housing 1.

[0026] As Figure 3 shown, the control board 2 of this embodiment includes a first board-level connector 23, a second board-level connector 24, a millimeter-wave radar RF module 22, a radar baseband module 20, and a control circuit module 21. The millimeter-wave radar RF module 22 and the radar baseband module 20 are arranged opposite to the radome 11. The front-view camera 12 is electrically connected to the control circuit module 21 through the first board-level connector 23. The output end of the millimeter-wave radar RF module 22 is connected to the input end of the radar baseband module 20. The output end of the radar baseband module 20 is electrically connected to the control circuit module 21. The control circuit module 21 is electrically connected to the vehicle body domain controller through the second board-level connector 24.

[0027] The millimeter-wave radar RF module 22 and the radar baseband module 20 are based on the same PCB board. At the same time, in order to control the high-frequency loss of the antenna, the PCB board uses Rogers RO3003 material. And the millimeter-wave radar RF module 22 abandons the green oil coating process to ensure the antenna performance.

[0028] As Figure 5 shown, the control circuit module 21 of this embodiment includes a power supply module, an SOC processing module, and an MCU control module. The output end of the radar baseband module 20 is electrically connected to the SOC processing module. The front-view camera 12 is electrically connected to the SOC processing module through the first board-level connector 23. The SOC processing module is electrically connected to the MCU control module. The MCU control module is electrically connected to the vehicle body domain controller through the second board-level connector 24.

[0029] The power supply module includes a PMIC power manager, a first LDO linear voltage regulator, and a second LDO linear voltage regulator. The PMIC power manager supplies power to the SOC processing module through the first LDO linear voltage regulator. The PMIC power manager supplies power to the MCU control module through the second LDO linear voltage regulator.

[0030] As Figure 5As shown, the vehicle body power supply powers on the PMIC power manager here. The PMIC power manager provides different voltages to the SOC processing module and the MCU control module through two LDO linear voltage regulators. The ramp generator in the radar baseband module 20 generates a signal that becomes a high-frequency signal after passing through the 20GHz synthesizer and quadrupler in the millimeter-wave radar RF module 22. The high-frequency signal flows through the PA power amplifier and is radiated by the transmitting antenna 25. The high-frequency signal radiated by the transmitting antenna 25 encounters a detection object and is reflected. The reflected signal is received by the receiving antenna 24. The echo signal generates an intermediate-frequency signal IF after passing through the LNA low-noise amplifier and the mixer 26, and is output to the digital front end in the radar baseband module 20 for further processing, and finally output to the SOC processing module.

[0031] The radar signal processed by the radar baseband module 20 and the video signal collected by the front-view camera 12 are synchronously output to the SOC processing module for digital signal processing. The QPSI Flash memory and the 40MHz external crystal oscillator also work together with the SOC processing module. The information processed by the SOC processing module is sent to the MCU control module, and the MCU control module fuses and judges the judgment signals of the radar and the front-view camera 12 and then outputs decision-making information. The MCU control module sends a forward collision warning message to the vehicle body domain controller via the CANFD bus. After receiving the message, the vehicle body domain controller triggers other vehicle modules.

[0032] The specific embodiments described above further elaborate on the technical problems solved, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A forward-looking radar integrated machine, characterized in that: It comprises an upper shell (1), a control panel (2) and a lower shell (3); the upper shell (1) is fixedly connected to the lower shell (3); the control panel (2) is arranged in a cavity formed by the upper shell (1) and the lower shell (3); and an antenna cover (11) and a front-view camera (12) are arranged on the outer wall of the upper shell (1); The control panel (2) comprises a millimeter wave radar radio frequency module (22), a radar baseband module (20) and a control circuit module (21); the millimeter wave radar radio frequency module (22) and the radar baseband module (20) are arranged relative to the antenna cover (11); the front-view camera (12) is electrically connected to the control circuit module (21); the output end of the millimeter wave radar radio frequency module (22) is connected to the input end of the radar baseband module (20); and the output end of the radar baseband module (20) is electrically connected to the control circuit module (21).

2. The forward-looking radar integrated machine according to claim 1, characterized in that: The control board (2) further comprises a first board-level connector (23), and the front-view camera (12) is electrically connected to the control circuit module (21) via the first board-level connector (23).

3. The forward-looking radar integrated machine according to claim 2, characterized in that: The control board (2) further comprises a second board-level connector (24), and the control circuit module (21) is electrically connected to the vehicle body domain controller via the second board-level connector (24).

4. The forward-looking radar integrated machine according to claim 3, characterized in that: The control circuit module (21) comprises a power module, a SOC processing module and an MCU control module; the output end of the radar baseband module (20) is electrically connected to the SOC processing module; the front-view camera (12) is electrically connected to the SOC processing module via a first board-level connector (23); the SOC processing module is electrically connected to the MCU control module; and the MCU control module is electrically connected to the vehicle body domain controller via a second board-level connector (24).

5. The forward-looking radar integrated machine according to claim 4, characterized in that: The power module includes a PMIC power manager, a first LDO linear regulator and a second LDO linear regulator. The PMIC power manager supplies power to the SOC processing module through the first LDO linear regulator, and the PMIC power manager supplies power to the MCU control module through the second LDO linear regulator.

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