Blind zone detection radar and truck blind zone early warning system

Abstract

The utility model relates to the technical field of automotive electronics, and discloses a blind area detection radar and a truck blind area early warning system. The blind area detection radar comprises a shell and two radar modules arranged in the shell. A wire harness hole is formed in the surface of the shell, signal wire harnesses of the two radar modules penetrate through the wire harness hole, and the directions of the antenna array faces of the two radar modules are opposite. The blind area detection radar is arranged in the middle of the side face of a truck, and the antenna array faces of the two radar modules face the head and the tail of the truck respectively, so that the detection range of the radar can completely cover a large side face blind area of the large truck, pedestrians, vehicles and obstacles entering the blind area can be detected in time, and the detection efficiency is improved. Therefore, the probability of accidents caused by blind areas is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronics technology, specifically to a blind spot detection radar and a blind spot warning system for large trucks. Background Technology

[0002] With the rapid development of the automotive industry, vehicle safety has become an increasingly important concern for consumers. Large trucks, due to their massive size, have significant blind spots on both sides, leading to frequent traffic accidents. When trucks are turning or changing lanes, drivers cannot see vehicles, pedestrians, or obstacles in these blind spots, greatly increasing the risk of collisions and causing serious injuries and property damage. To address the blind spot problem of large trucks, some are equipped with auxiliary detection devices such as ultrasonic radar on the sides. However, these devices have limited coverage, often only covering a portion of the truck's blind spots and failing to provide comprehensive coverage of the large lateral blind spots. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a blind spot detection radar that can completely cover the lateral blind spots of large trucks, and can realize timely feedback of information on vehicles, pedestrians or obstacles in the large blind spots of large trucks, thereby reducing the probability of accidents caused by blind spots of large trucks.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A blind zone detection radar includes a housing and two radar modules disposed inside the housing. The surface of the housing is provided with a wire harness hole for passing through the signal wire harnesses of the two radar modules. The antenna arrays of the two radar modules are oriented in opposite directions.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the blind spot detection radar in the area near the middle of the side of the truck, since the blind spot detection radar has two radar modules facing opposite directions, by pointing the antenna arrays of the two radar modules toward the front and rear of the truck respectively, the radar detection can achieve complete coverage of the large lateral blind spot of the truck, thereby enabling timely feedback of information on vehicles, pedestrians or obstacles in the large blind spot of the truck, reducing the probability of accidents caused by blind spots.

[0006] Both of the aforementioned blind zone detection radar modules are millimeter-wave radars.

[0007] In the aforementioned blind zone detection radar, a sealing plug is provided inside the wire harness hole, and the sealing plug is provided with a through hole through which the signal wire harness can pass. The inner wall of the through hole can fit tightly against the outer peripheral surface of the passing signal wire harness.

[0008] The aforementioned blind spot detection radar includes a base and an upper housing. The two radar modules are disposed within the cavity formed by the upper housing and the base, and the wiring harness hole is disposed on the base.

[0009] The aforementioned blind zone detection radar has an outer shell that is a quadrangular prism with an isosceles trapezoidal base. The side of the trapezoidal base is formed by the base. The antenna arrays of the two radar modules are parallel to the two inclined surfaces of the upper shell, respectively.

[0010] The aforementioned blind spot detection radar has several heat dissipation protrusions on the outer surface of its base.

[0011] The aforementioned blind spot detection radar has its base mounted on the side of the vehicle body via a mounting bracket, which has a through hole for the signal harness to pass through.

[0012] The aforementioned blind spot detection radar has a decorative element embedded in its upper housing, which is positioned between the two radar modules.

[0013] A blind spot warning system for large trucks includes at least two blind spot detection radars, a power supply, an alarm, and a vehicle communication module. The two blind spot detection radars are installed on both sides of the vehicle body. The power supply provides power to the blind spot detection radars, the vehicle communication module, and the alarm. The blind spot detection radars are electrically connected to the alarm and the vehicle communication module. The vehicle communication module is used to communicate with the truck's control system. The alarm is installed in the truck's cab.

[0014] In the aforementioned blind spot warning system for large trucks, the blind spot detection radar is electrically connected to the vehicle communication module via a CAN bus.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the blind zone detection radar according to an embodiment of the present invention;

[0017] Figure 2 This is an exploded schematic diagram of the blind zone detection radar according to an embodiment of the present invention;

[0018] Figure 3 This is a bottom view of the base according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic block diagram of the blind spot warning system for large trucks according to an embodiment of the present utility model;

[0020] Figure 5This is a schematic diagram of the installation of the blind spot warning system for large trucks according to an embodiment of this utility model.

[0021] Explanation of icon numbers:

[0022] 100 Housing, 110 Upper Housing, 111 Decorative Parts, 120 Base, 121 Sealing Plug, 122 Radar Bracket, 123 Heat Dissipation Rib, 200 Radar Module, 210 Signal Harness, 300 Hand Parts, 310 Bolt Holes, 400 Alarm. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below, with reference to Figure 1 and Figure 2 This utility model provides a blind spot detection radar, including a housing 100 and two radar modules 200 disposed within the housing 100. The surface of the housing 100 is provided with wiring harness holes for the signal harnesses 210 of the two radar modules 200 to pass through. The antenna arrays of the two radar modules 200 face opposite directions. By installing this blind spot detection radar on the side of a truck near the center, with the antenna arrays of the two radar modules 200 facing the front and rear of the truck respectively, the detection range of the blind spot detection radar can cover the entire side area of ​​the large truck. Using this blind spot detection radar, the radar's detection area can cover the large side blind spots of the large truck, thereby providing timely feedback on vehicles, pedestrians, and obstacles within the large blind spots of the large truck, reducing the probability of accidents caused by blind spots.

[0024] It is understandable that the radar module 200 can use ultrasonic or millimeter-wave methods to detect obstacles in the blind zone. In this embodiment, the radar module 200 uses millimeter-wave radar, and integrates an RF transceiver antenna, a main control MCU, IO control, and communication interfaces such as CAN, UART, IIC, and SPI. The antenna array can emit 77GHz millimeter waves, enabling high-precision detection of the distance, speed, and angle of targets in the blind zone. It has high measurement accuracy, strong signal penetration, and strong anti-interference capability, and can still achieve effective detection of blind zones in adverse weather conditions such as rain, fog, and snow.

[0025] Reference Figure 2In this embodiment, the outer shell 100 is assembled from the outer shell 100 body and the base 120. Two radar modules 200 are disposed back-to-back within the cavity formed by the upper shell 110 and the base 120. A wiring harness hole is disposed on the base 120, and a sealing plug 121 is disposed within the wiring harness hole. The sealing plug 121 has a through hole through which the wiring harness can pass. The inner wall of the through hole can fit tightly against the outer peripheral surface of the signal wiring harness 210, thereby forming a liquid seal with the outer peripheral surface of the signal wiring harness 210 to prevent rainwater from entering the radar interior through the wiring harness hole. In this embodiment, the outer shell 100 is a quadrangular prism with an isosceles trapezoidal base. The side where the base of the trapezoid is located is formed by the base 120. The antenna arrays of the two radar modules 200 are parallel to the two inclined surfaces of the upper shell 110, so that the antenna arrays form an obtuse angle with the side of the truck, allowing the millimeter-wave signals emitted by the antenna arrays to better cover the blind spots on the side of the truck. In this embodiment, the inclined surface of the upper housing 110 forms a 45-degree angle with the base 120, and a 45-degree radar bracket 122 is provided on the base 120, with two radar modules 200 disposed on the radar bracket 122.

[0026] Reference Figure 2 In this embodiment, the base 120 of the blind spot detection radar is mounted on the side of the truck via a mounting bracket 300. The mounting bracket 300 is a plate with a through hole through which the signal harness 210 can pass. The mounting bracket 300 can be glued to the side of the truck. The base 120 is detachably connected to the mounting bracket 300 by bolts. The mounting bracket 300 is provided with bolt holes 310 for screwing in bolts. In this embodiment, the harness hole is located between the two radar modules 200, and the two bolt holes 310 are located on both sides of the through hole of the base 120, with both bolt holes 310 located between the two radar modules 200. A decorative plate is embedded on the upper housing 110, located between the two radar modules 200. The decorative plate can cover the bolt holes 310, improving the aesthetics of the radar and preventing rainwater from corroding the bolts, making them difficult to remove.

[0027] Reference Figure 3 In this embodiment, a plurality of heat dissipation protrusions 123 are provided on the outer surface of the base 120, making the outer surface of the base 120 wavy, thereby increasing the surface area of ​​the base 120 and improving the heat dissipation efficiency of the base 120, which facilitates the heat dissipation of the radar module 200.

[0028] Reference Figure 4 The blind spot warning system for large trucks according to this embodiment includes at least two of the aforementioned blind spot detection radars, a power supply, an alarm 400, and a vehicle communication module. The two blind spot detection radars are installed on both sides of the truck body, as shown below. Figure 5As shown, taking a 35-meter-long truck as an example, the blind spot detection radar is installed 15 meters away from the front of the truck. The power supply is used to power the vehicle communication module of the blind spot detection radar and the alarm 400. The blind spot detection radar, the alarm 400 and the vehicle communication module are all electrically connected. The vehicle communication module is used to communicate with the truck's control system to obtain vehicle information. The alarm 400 is installed in the truck's cab.

[0029] Reference Figure 4 In this embodiment, communication between the two radar modules 200, as well as between the radar module 200 and the vehicle communication module, is conducted via a CAN bus. Radar module B sends the detected target data to radar module A via the CAN bus for merging and processing, filtering out false entries in the detected data based on target amplitude and signal-to-noise ratio. Radar module A obtains the truck's speed from the vehicle communication module via the CAN bus. When the speed is greater than 0 and a pedestrian, vehicle, or obstacle is detected in the blind spot, radar module A controls the alarm 400 to emit an audible and / or visual alarm via an I / O signal, alerting the driver to take emergency measures to prevent the truck from colliding with the pedestrian, vehicle, or obstacle in the blind spot.

[0030] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A blind spot detection radar, characterized by, The device includes a housing (100) and two radar modules (200) disposed within the housing (100). The surface of the housing (100) is provided with a wire harness hole for passing through the signal wire harness (210) of the two radar modules (200). The antenna arrays of the two radar modules (200) are oriented in opposite directions.

2. The blind zone detection radar of claim 1, wherein, Both radar modules (200) are millimeter-wave radars.

3. The blind zone detection radar of claim 1, wherein, A sealing plug (121) is provided inside the wire harness hole. The sealing plug (121) is provided with a through hole through which the signal wire harness (210) can pass. The inner wall of the through hole can fit tightly against the outer peripheral surface of the signal wire harness (210) through which it passes.

4. The blind zone detection radar of claim 1, wherein, The outer casing (100) includes a base (120) and an upper casing (110). The two radar modules (200) are disposed in the cavity formed by the upper casing (110) and the base (120). The wire harness hole is disposed on the base (120).

5. The blind zone detection radar of claim 4, wherein, The outer shell (100) is a quadrangular prism with an isosceles trapezoidal base. The side of the trapezoidal base is formed by the base (120). The antenna arrays of the two radar modules (200) are parallel to the two inclined surfaces of the upper shell (110).

6. The blind zone detection radar of claim 4, wherein, The outer surface of the base (120) is provided with several heat dissipation protrusions (123).

7. The blind zone detection radar of claim 4, wherein, The base (120) is mounted on the side of the vehicle body via a counter (300), which has a through hole for the signal harness (210) to pass through.

8. The blind zone detection radar of claim 4, wherein, A decorative element (111) is embedded in the upper housing (110), and the decorative element (111) is disposed between the two radar modules (200).

9. A large truck blind spot warning system characterized by, The vehicle includes at least two blind spot detection radars according to any one of claims 1 to 8, a power supply, an alarm (400), and a vehicle communication module. The two blind spot detection radars are disposed on both sides of the vehicle body. The power supply is used to supply power to the blind spot detection radars, the vehicle communication module, and the alarm (400). The blind spot detection radars are electrically connected to the alarm (400) and the vehicle communication module. The vehicle communication module is used to communicate with the control system of the truck. The alarm (400) is disposed in the cab of the truck.

10. The large truck blind spot warning system of claim 9, wherein, The blind spot detection radar is electrically connected to the vehicle communication module via a CAN bus.

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