Steering wheel integrated with millimeter wave radar

Abstract

The utility model relates to a steering wheel integrated with a millimeter wave radar, which comprises a steering wheel control system adopting a single chip microcomputer, the steering wheel further comprises a millimeter wave radar module, the millimeter wave radar module comprises a PCBA (printed circuit board assembly) module and an antenna, the PCBA module is arranged in the steering wheel, and the antenna is arranged outside the PCBA module. The PCBA module comprises a millimeter wave radar sensor chip used for monitoring the heart rate of a driver, and the PCBA module communicates with a single-chip microcomputer of a steering wheel control system. The vehicle is provided with a vehicle body control system, and the millimeter-wave radar module communicates with the vehicle body control system. The millimeter wave radar module is added, the heart rate of a driver can be monitored in real time, and dangers are reduced or even eradicated; the millimeter wave radar module can communicate with a steering wheel control system and can also communicate with a vehicle body control system. The millimeter wave radar external antenna can more accurately monitor the state information of the driver; the millimeter wave radar PCBA module is arranged in the steering wheel, a shell is not needed, and space is saved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle steering wheel technology, and in particular to a steering wheel integrating millimeter-wave radar. Background Technology

[0002] Most commonly used steering wheels integrate a control system, which uses a microcontroller to allow the driver to interact with the vehicle's information system via buttons, a touchscreen, or other input devices on the steering wheel. However, most steering wheels lack a driver vital signs detection system, cannot monitor the driver's condition in real time, and cannot promptly notify customers in case of passenger injury. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned technical problems, this utility model provides a steering wheel that integrates millimeter-wave radar.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a steering wheel integrating millimeter-wave radar, including a steering wheel control system, wherein the steering wheel control system adopts a microcontroller, and the steering wheel of this utility model also includes a millimeter-wave radar module, wherein the millimeter-wave radar module includes a PCBA (printed circuit board assembly) module and an antenna, wherein the PCBA module is disposed inside the steering wheel, and the antenna is externally disposed on the PCBA module, wherein the PCBA module includes a millimeter-wave radar sensor chip for monitoring the driver's heart rate, and the PCBA module communicates with the microcontroller of the steering wheel control system; the vehicle has a body control system, and the millimeter-wave radar module communicates with the body control system.

[0005] The microcontroller used in the steering wheel control system is an STM32F405V.

[0006] The PCBA module is built into the center of the steering wheel.

[0007] The millimeter-wave radar module uses an AWR6843AQGABL millimeter-wave radar sensor chip.

[0008] The steering wheel of this utility model also includes a steering wheel module, which includes a control button module and a mode selection button. The control button module and the mode selection button communicate with the microcontroller of the steering wheel control system through MSDI (Multi-Switch Detection Interface).

[0009] The control button module includes a first control button module and a second control button module. The first control button module, the second control button module, and the mode selection button communicate with the microcontroller of the steering wheel control system via MSDI, and the communication method is SPI.

[0010] The steering wheel module also includes a display module, which includes a driver chip and an LCD display screen. The LCD display screen is connected to the microcontroller of the steering wheel control system via a data bus through the driver chip.

[0011] The driver chip is RA8875, and the LCD display is AT070TN83.

[0012] The millimeter-wave radar module communicates with the body control system via CAN transceiver 1, and the steering wheel control system communicates with the body control system via CAN transceiver 2.

[0013] The beneficial effects of this utility model are as follows: the integrated millimeter-wave radar steering wheel of this utility model adds a millimeter-wave radar module, which can monitor the driver's heart rate in real time. When the driver's heart rate is abnormal, it can alert the driver to reduce or even eliminate danger; the millimeter-wave radar module can communicate with the steering wheel control system and the vehicle body control system; the external antenna of the millimeter-wave radar can more accurately monitor the driver's status information compared with the internal antenna; the millimeter-wave radar PCBA module is built into the steering wheel, eliminating the need for a shell and saving space. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the working state of a steering wheel integrating millimeter-wave radar according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a steering wheel integrating millimeter-wave radar according to this utility model.

[0017] Figure 3 This is a schematic diagram of the PCBA module for a steering wheel integrating millimeter-wave radar according to this utility model.

[0018] Figure 4 This is a control system diagram for a steering wheel integrating millimeter-wave radar according to this utility model.

[0019] In the diagram: 1. Steering wheel; 2. PCBA module; 3. Mode selection button; 4. First control button module; 5. Second control button module; 6. LCD display screen. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] like Figure 1-4As shown, this utility model discloses a steering wheel integrating millimeter-wave radar, including a steering wheel control system that uses a microcontroller. The steering wheel also includes a millimeter-wave radar module, which comprises a PCBA module and an antenna. Preferably, the PCBA module 2 is mounted on the steering wheel 1. Figure 2 In this embodiment, the PCBA module 2 is built into the center of the steering wheel 1. Figure 1 The two dashed lines in the image indicate the detection range of the millimeter-wave radar. The PCBA module 2 is built into the steering wheel, eliminating the need for a separate casing and saving space. (As shown...) Figure 3 As shown, the antenna is externally mounted on PCBA module 2. Compared to an internal antenna, the external antenna provides a stronger signal and higher detection accuracy. PCBA module 2 includes a millimeter-wave radar sensor chip for monitoring the driver's heart rate. PCBA module 2 communicates with the microcontroller of the steering wheel control system. The vehicle has a body control system, and the millimeter-wave radar module communicates with this system. Figure 4 In this system, the millimeter-wave radar module communicates with the body control system via CAN transceiver 1, and the steering wheel control system communicates with the body control system via CAN transceiver 2. The steering wheel control system is used to control steering and some electronic assistance functions; the body control system is used to stabilize the vehicle and control passive safety devices such as headlights, wipers, door locks, windows, airbags, and seat belt pretensioners.

[0022] The microcontroller used in the steering wheel control system is an STM32F405V.

[0023] The millimeter-wave radar module uses the AWR6843AQGABL millimeter-wave radar sensor chip, which can be equipped with an external antenna and has 3 transmit and 4 receive antennas.

[0024] The steering wheel of this utility model also includes a steering wheel module, which includes a control button module and a mode selection button 3. The control button module and the mode selection button 3 communicate with the microcontroller of the steering wheel control system via MSDI.

[0025] The control button module includes a first control button module 4 and a second control button module 5. The first control button module 4, the second control button module 5 and the mode selection button 3 communicate with the microcontroller of the steering wheel control system via MSDI, and the communication method is SPI.

[0026] The steering wheel module also includes a display module, which comprises a driver chip and an LCD display screen 6. The LCD display screen 6 is connected to the microcontroller of the steering wheel control system via a data bus through the driver chip. The driver chip is an RA8875, and the LCD display screen is a 7-inch screen, model AT070TN83. The driver chip RA8875 is connected to the STM32F405V microcontroller via a data bus.

[0027] like Figure 2 As shown, the LCD display screen 6 is positioned above the PCBA module 2, and the control button module includes a first control button module 4 and a second control button module 5, which are respectively positioned on both sides of the PCBA module 2.

[0028] The following functions can be achieved using a millimeter-wave radar module:

[0029] (1) Real-time monitoring of the driver's heart rate. When the driver's heart rate is abnormal, an alarm can be triggered immediately to reduce or even eliminate the danger.

[0030] (2) Liveness detection is performed. If the door is not closed when the driver leaves, an alarm can be triggered. When the driver is detected getting into the vehicle, the system is notified to enter standby mode to avoid waiting time.

[0031] (3) Detect user gestures. Based on the gesture information provided by the user, the system can turn off the music, turn up the volume, turn down the volume, etc. Users can customize gestures and select the corresponding functions.

[0032] (4) Implement horn detection function. When the millimeter-wave radar detects a clear pressing action, the horn will sound. The car owner can also set a gesture to turn on the horn. This function can be turned off.

[0033] (5) Add temperature and humidity detection modules to display in-vehicle environment information on the screen in real time, and adjust the in-vehicle environment in real time according to the driver's heart rate information to provide the driver with a suitable driving environment.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A steering wheel integrating millimeter-wave radar, comprising a steering wheel control system, wherein the steering wheel control system employs a microcontroller, characterized in that: It also includes a millimeter-wave radar module, which includes a PCBA module and an antenna. The PCBA module (2) is located inside the steering wheel (1), and the antenna is located outside the PCBA module (2). The PCBA module (2) includes a millimeter-wave radar sensor chip for monitoring the driver's heart rate. The PCBA module (2) communicates with the microcontroller of the steering wheel control system. The vehicle has a body control system, and the millimeter-wave radar module communicates with the body control system.

2. The integrated mm-wave radar steering wheel of claim 1, wherein: The microcontroller used in the steering wheel control system is an STM32F405V.

3. The integrated mm-wave radar steering wheel of claim 1, wherein: The PCBA module (2) is built into the center of the steering wheel (1).

4. The integrated mm-wave radar steering wheel of claim 1, wherein: The millimeter-wave radar module uses an AWR6843AQGABL millimeter-wave radar sensor chip.

5. The integrated mm-wave radar steering wheel of claim 1, wherein: It also includes a steering wheel module, which includes a control button module and a mode selection button (3). The control button module and the mode selection button (3) communicate with the microcontroller of the steering wheel control system via MSDI.

6. The integrated mm-wave radar steering wheel of claim 5, wherein: The control button module includes a first control button module (4) and a second control button module (5). The first control button module (4), the second control button module (5) and the mode selection button (3) communicate with the microcontroller of the steering wheel control system through MSDI, and the communication method is SPI.

7. The integrated mm-wave radar steering wheel of claim 5, wherein: The steering wheel module also includes a display module, which includes a driver chip and an LCD display screen (6). The LCD display screen (6) is connected to the microcontroller of the steering wheel control system via a data bus through the driver chip.

8. The integrated mm-wave radar steering wheel of claim 7, wherein: The driver chip is RA8875, and the LCD display is AT070TN83.

9. The integrated mm-wave radar steering wheel of claim 1, wherein: The millimeter-wave radar module communicates with the body control system via CAN transceiver 1, and the steering wheel control system communicates with the body control system via CAN transceiver 2.

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