Two-wheeled vehicle integrated backward safety monitoring device based on millimeter wave radar

Abstract

The utility model discloses a two-wheeled vehicle integrated backward safety monitoring device based on millimeter wave radar, which comprises a reflector outer shell, a PCBA board and a millimeter wave radar part, the reflector outer shell is arranged at the rear part of a two-wheeled vehicle, and a reflecting coating is arranged on one side of the reflector outer shell far away from the rear part of the two-wheeled vehicle. The PCBA board and the millimeter wave radar part are both installed in the reflector outer shell, the PCBA board is electrically connected with the vehicle-mounted battery, the PCBA board is in signal connection with the vehicle-mounted display and / or the user mobile phone, and the millimeter wave radar part is in mixed connection with the PCBA board. According to the technical scheme of the utility model, active detection and early warning functions are realized through the PCBA board and the millimeter wave radar part, and interference of rain, fog and dust on monitoring can be avoided. Moreover, the PCBA board and the millimeter wave radar part are installed in the reflector outer shell, and the original structure of the reflector is utilized, so that the overall attractiveness of the two-wheeled vehicle is not affected, an outer shell does not need to be independently arranged, and the production cost and complexity can be reduced on the basis that active detection and early warning functions are achieved.

Description

Technical Field

[0001] This utility model relates to the field of safety monitoring devices, and in particular to an integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar. Background Technology

[0002] Two-wheeled vehicles are modes of transportation with two wheels, such as electric vehicles, motorcycles, and bicycles. Reflectors are typically installed at the rear of two-wheeled vehicles to reflect light from behind, thereby warning vehicles and pedestrians behind. However, existing reflectors are relatively simple, only providing passive warnings and unable to actively detect vehicles or obstacles behind, failing to meet the growing demand for active detection and warning systems for two-wheeled vehicles. Currently, there are active detection and warning devices installed on two-wheeled vehicles, such as monitoring cameras and radar monitoring devices. However, monitoring cameras are susceptible to interference from rain, fog, and dust, affecting monitoring quality; while existing radar monitoring devices are independently installed, affecting the overall aesthetics of the two-wheeled vehicle and requiring separate protective casings, increasing production costs and complexity. Utility Model Content

[0003] The main purpose of this invention is to propose an integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar. This device aims to solve the technical problems of existing active detection and early warning devices for two-wheeled vehicles being susceptible to interference from rain, fog, and dust, which affects the monitoring quality. Furthermore, the device itself affects the overall aesthetics of the two-wheeled vehicle, increasing production costs and complexity.

[0004] To achieve the above objectives, this utility model proposes an integrated rear-view safety monitoring device for two-wheeled vehicles based on millimeter-wave radar. The device includes a reflector housing mounted on the rear of the two-wheeled vehicle, with a reflective coating on the side of the reflector housing away from the rear of the vehicle. It also includes a PCBA board and a millimeter-wave radar unit, both mounted within the reflector housing. The PCBA board is electrically connected to the vehicle battery and connected to a vehicle display and / or user's mobile phone signal. The millimeter-wave radar unit is connected in a hybrid manner with the PCBA board.

[0005] Optionally, the PCBA board integrates a power management module, a main control unit, a data acquisition module, and a communication module;

[0006] A communication module, the output of which is connected to an in-vehicle display and / or a user's mobile phone signal, and the communication module is used to send warning information;

[0007] The data acquisition module has its input end connected to the millimeter-wave radar signal and its output end connected to the main control unit signal. The data acquisition module is used to calculate the phase difference of the echo signal and to calculate the distance, speed and azimuth of the obstacle.

[0008] The main control unit has its input terminal connected to the data acquisition module and its output terminal connected to the communication module and the millimeter-wave radar unit. The main control unit is used to coordinate and control the data acquisition module, the communication module and the millimeter-wave radar unit to realize dynamic multi-level early warning decision-making, environmental interference processing and system energy consumption optimization functions.

[0009] The power management module has its input terminal electrically connected to the vehicle battery and its output terminal electrically connected to the main control unit, data acquisition module, communication module and millimeter-wave radar unit. The power management module is used to provide electrical energy.

[0010] The millimeter-wave radar unit is used to transmit frequency-modulated continuous waves and receive echo signals reflected from obstacles behind it.

[0011] Optionally, the main control unit includes a control chip U1, which is an ALPS-MO-AIP-FC chip.

[0012] Optionally, the power management module includes a control chip U4, which is an APW7255P1 chip.

[0013] Optionally, the millimeter-wave radar unit is a millimeter-wave radar antenna or a millimeter-wave radar antenna array.

[0014] Optionally, the reflector housing includes a first half-shell and a second half-shell, and the PCBA board and the millimeter-wave radar unit are installed between the first half-shell and the second half-shell.

[0015] Optionally, the first half-shell is provided with a connecting bolt on the side facing the rear of the two-wheeled vehicle, and the second half-shell is provided with a reflective coating on the side facing the rear of the two-wheeled vehicle.

[0016] The technical solution of this utility model has the following beneficial effects:

[0017] Active detection and early warning functions are achieved through PCBA boards and millimeter-wave radar units, avoiding interference from rain, fog, and dust. Furthermore, the PCBA boards and millimeter-wave radar units are installed within the reflector housing, utilizing the reflector's existing structure. Therefore, this does not affect the overall aesthetics of the two-wheeled vehicle and eliminates the need for a separate housing. This reduces production costs and complexity while still achieving active detection and early warning functions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a circuit diagram of the integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to this utility model.

[0020] Figure 2 This is a circuit diagram of the main control unit of the integrated rear-end safety monitoring device for two-wheeled vehicles based on millimeter-wave radar, according to this utility model.

[0021] Figure 3 This is a circuit diagram of the power management module of the integrated rear safety monitoring device for two-wheeled vehicles based on millimeter-wave radar, according to this utility model.

[0022] Figure 4 This is an exploded structural diagram of the integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar, according to this utility model.

[0023] Reference numerals: 1 for first half-shell, 11 for bolt, 2 for second half-shell, 21 for reflective coating.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This invention proposes an integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar.

[0029] like Figures 1 to 4 As shown, in one embodiment of this utility model, the integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar includes a reflector housing, a PCBA board, and a millimeter-wave radar unit. Specifically, the reflector housing is installed at the rear of the two-wheeled vehicle, and a reflective coating 21 is provided on the side of the reflector housing away from the rear of the two-wheeled vehicle. Both the PCBA board and the millimeter-wave radar unit are installed within the reflector housing. Further, the PCBA board is electrically connected to the vehicle battery, and also connected to the vehicle display and / or the user's mobile phone signal. The millimeter-wave radar unit is hybridly connected to the PCBA board, meaning that both electrical and signal connections exist between the millimeter-wave radar unit and the PCBA board simultaneously.

[0030] During the user's ride, the two-wheeled vehicle's integrated rearward safety monitoring device transmits frequency-modulated continuous waves through a millimeter-wave radar unit and receives echo signals reflected from obstacles behind. Then, the phase difference of the echo signals is calculated by the corresponding functional units on the PCBA board to calculate the distance, speed, and azimuth of the obstacles, thereby realizing dynamic multi-level early warning decision-making, environmental interference processing, and system energy consumption optimization. Based on the safety monitoring results, an early warning signal is generated and sent to the vehicle display and / or the user's mobile phone to remind the user to pay attention to vehicles and obstacles behind. Thus, through the reflective coating 21, PCBA board, and millimeter-wave radar unit, it takes into account both passive warning and active detection and early warning functions.

[0031] Active detection and early warning functions are achieved through a PCBA board and millimeter-wave radar unit, avoiding interference from rain, fog, and dust. Furthermore, the PCBA board and millimeter-wave radar unit are installed within the reflector housing, utilizing the reflector's existing structure. Therefore, it does not affect the overall aesthetics of the two-wheeled vehicle and eliminates the need for a separate housing. This reduces production costs and complexity while still achieving active detection and early warning functions. Practical experience shows that this integrated rear-facing safety monitoring device for two-wheeled vehicles based on millimeter-wave radar reduces costs by more than 40% compared to standalone radar equipment, has an active early warning response time of <100ms, and reduces blind spots by 70%.

[0032] like Figures 1 to 3As shown, in this embodiment, a power management module, a main control unit, a data acquisition module, and a communication module are integrated on the PCBA board.

[0033] The communication module's output is connected to the vehicle-mounted display and / or the user's mobile phone signal. The communication module is used to send warning information. Specifically, the communication module includes a Bluetooth Low Energy (BLE) and / or a CAN bus interface. It can send warning information to the user's mobile phone app via BLE, or connect to the vehicle-mounted display via the CAN bus to send the warning information to the vehicle-mounted display.

[0034] The data acquisition module has its input end connected to the millimeter-wave radar signal and its output end connected to the main control unit signal. The data acquisition module is used to calculate the phase difference of the echo signal, calculate the distance, speed and azimuth of the obstacle, and then output the processing results to the main control unit.

[0035] The main control unit has its input terminal connected to the data acquisition module and its output terminal connected to the communication module and the millimeter-wave radar unit. Based on the processing results input from the data acquisition module, the main control unit coordinates and controls the data acquisition module, communication module, and millimeter-wave radar unit to achieve dynamic multi-level early warning decision-making, environmental interference handling, and system energy consumption optimization. Specifically, based on the processing results input from the data acquisition module, the main control unit determines the warning level and outputs corresponding warning information, such as different vibration intensities and screen colors corresponding to different warning messages on the user's mobile phone (warning levels from low to high: yellow → orange → red), and the screen color of the vehicle display. Furthermore, the main control unit also coordinates and controls the data acquisition module, communication module, and millimeter-wave radar unit based on the processing results and warning levels, thereby achieving dynamic multi-level early warning decision-making, environmental interference handling, and system energy consumption optimization. In this embodiment, the main control unit includes a control chip U1, which uses an ALPS-M0-AIP-FC chip.

[0036] The power management module has its input terminal electrically connected to the vehicle battery and its output terminal electrically connected to the main control unit, data acquisition module, communication module, and millimeter-wave radar unit. The power management module provides power to these components. In this embodiment, the power management module includes a control chip U4, specifically an APW7255P1 chip.

[0037] The millimeter-wave radar unit, as described above, is used to transmit frequency-modulated continuous waves and receive echo signals reflected from obstacles behind it. Specifically, the millimeter-wave radar unit can be a millimeter-wave radar antenna or a millimeter-wave radar antenna array. Using a millimeter-wave radar antenna results in lower power consumption, smaller footprint, and lower cost; using a millimeter-wave radar antenna array provides higher detection accuracy, stronger anti-interference capabilities, and enables multi-target tracking.

[0038] like Figure 4 As shown, in this embodiment, the reflector housing includes a first half-shell 1 and a second half-shell 2, with the PCBA board and millimeter-wave radar unit installed between the first half-shell 1 and the second half-shell 2. Specifically, the first half-shell 1 has a connecting bolt 11 on the side facing the rear of the two-wheeled vehicle, and the second half-shell 2 has a reflective coating 21 on the side facing the rear of the two-wheeled vehicle. During production, the PCBA board and millimeter-wave radar unit are first installed in the reflector housing. Then, the reflector housing with active detection and warning functions is installed at the rear of the two-wheeled vehicle using the connecting bolt 11, and the reflector housing is connected to the vehicle battery and vehicle display via specific cables to achieve the corresponding functions.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A two-wheeled vehicle integrated rearward safety monitoring device based on millimeter-wave radar, comprising a reflector housing, the reflector housing being installed at the rear of the two-wheeled vehicle, and a reflective coating being provided on the side of the reflector housing away from the rear of the two-wheeled vehicle, characterized in that, It also includes a PCBA board and a millimeter-wave radar unit, both of which are installed inside the reflector housing. The PCBA board is electrically connected to the vehicle battery and to the vehicle display and / or user mobile phone signal. The millimeter-wave radar unit is connected in combination with the PCBA board.

2. The integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to claim 1, characterized in that, The PCBA board integrates a power management module, a main control unit, a data acquisition module, and a communication module. A communication module, the output of which is connected to an in-vehicle display and / or a user's mobile phone signal, and the communication module is used to send warning information; The data acquisition module has its input end connected to the millimeter-wave radar signal and its output end connected to the main control unit signal. The data acquisition module is used to calculate the phase difference of the echo signal and to calculate the distance, speed and azimuth of the obstacle. The main control unit has its input terminal connected to the data acquisition module and its output terminal connected to the communication module and the millimeter-wave radar unit. The main control unit is used to coordinate and control the data acquisition module, the communication module and the millimeter-wave radar unit to realize dynamic multi-level early warning decision-making, environmental interference processing and system energy consumption optimization functions. The power management module has its input terminal electrically connected to the vehicle battery and its output terminal electrically connected to the main control unit, data acquisition module, communication module and millimeter-wave radar unit. The power management module is used to provide electrical energy. The millimeter-wave radar unit is used to transmit frequency-modulated continuous waves and receive echo signals reflected from obstacles behind it.

3. The integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to claim 2, characterized in that, The main control unit includes a control chip U1, which is an ALPS-M0-AIP-FC chip.

4. The integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to claim 2, characterized in that, The power management module includes a control chip U4, which is an APW7255P1 chip.

5. The integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to claim 1, characterized in that, The millimeter-wave radar section is a millimeter-wave radar antenna or a millimeter-wave radar antenna array.

6. The integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to claim 1, characterized in that, The reflector housing includes a first half-shell and a second half-shell, and the PCBA board and millimeter-wave radar unit are installed between the first half-shell and the second half-shell.

7. The integrated rearward safety monitoring device for two-wheeled vehicles based on millimeter-wave radar according to claim 6, characterized in that, The first half-shell has a connecting bolt on the side facing the rear of the two-wheeled vehicle, and the second half-shell has a reflective coating on the side facing the rear of the two-wheeled vehicle.

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