Vehicle alarm device and vehicle auxiliary line adjustment device

The vehicle warning device dynamically adjusts auxiliary lines based on vehicle direction changes to cover blind spots, ensuring effective obstacle detection and warning, addressing the limitations of fixed warning areas in conventional systems.

JP2025100288AActive Publication Date: 2025-07-03REC TECH CORP
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
JP2024078671
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-22
Filing Date
2024-05-14
Publication Date
2025-07-03
Estimated Expiration
2044-05-14

AI Technical Summary

Technical Problem

Conventional vehicle warning devices struggle to effectively cover blind spots during vehicle turns due to a fixed warning area, making it difficult to detect obstacles in these areas.

Method used

A vehicle warning device and auxiliary line adjustment system that includes an image capture device, vehicle control signal capture device, and processor to dynamically adjust auxiliary lines based on vehicle direction changes, forming a warning area that covers blind spots by defining and adjusting first and second auxiliary lines.

Benefits of technology

The system ensures the warning area dynamically adjusts to cover all blind spots, effectively detecting obstacles regardless of the vehicle's stationary or moving state, thereby enhancing safety by issuing appropriate warnings.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025100288000001
    Figure 2025100288000001
  • Figure 2025100288000002
    Figure 2025100288000002
  • Figure 2025100288000003
    Figure 2025100288000003
Patent Text Reader

Abstract

To improve an alarm section when an obstacle appears in a dead angle area when a vehicle turns.SOLUTION: There is provided a vehicle alarm device and a vehicle auxiliary line adjustment device. The vehicle alarm device comprises: an image capturing device; a vehicle control signal capturing device; and a processor. The image capturing device captures an image outside a vehicle. The vehicle control signal capturing device captures a direction change signal of the vehicle. The processor regulates first and second auxiliary lines, determines whether a target object of the image contacts an alarm section formed between the first and second auxiliary lines, and generates an alarm signal according to determination. The processor further dynamically adjusts the first auxiliary line and / or the second auxiliary line according to the direction change signal to adjust the alarm section.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a vehicle warning device, and more particularly to a vehicle warning device related to vehicle auxiliary lines and a vehicle auxiliary line adjustment device.

Background Art

[0002] In a conventional vehicle warning device, a warning area having a preset fixed range is displayed on a display device. An image behind the vehicle is displayed on the display device, and it is determined whether to generate and transmit a warning according to whether an object in the image is within the warning area.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, since the range of the conventional warning area is fixed, it is difficult for the conventional warning area to cover the blind spot area generated when the vehicle turns. In other words, when an obstacle appears in the blind spot area when the vehicle turns, it is difficult to detect these obstacles by the conventional warning area. Therefore, it is necessary to improve the conventional warning area.

Means for Solving the Problems

[0004] To solve at least the above problems, one embodiment of the present invention provides a vehicle warning device. A vehicle warning device according to an embodiment of the present invention is disposed on a vehicle and includes an image capturing device that captures an image outside the vehicle, a vehicle control signal capturing device configured to capture a direction change signal of the vehicle, and a processor electrically connected to the image capturing device and the vehicle control signal capturing device. The processor defines a first auxiliary line and a second auxiliary line to form a warning area between the first auxiliary line and the second auxiliary line, identifies a target object in the image, determines whether the target object contacts the warning area defined by the first auxiliary line and the second auxiliary line, and is configured to generate an alarm signal when it is determined that the target object contacts the warning area. The processor is further configured to dynamically adjust the first auxiliary line and / or the second auxiliary line according to the direction change signal in order to adjust the warning area.

[0005] To solve at least the above problems, the present invention further provides a vehicle auxiliary line adjustment device. A vehicle auxiliary line adjustment device according to an embodiment of the present invention includes a vehicle control signal capturing device configured to capture a direction change signal of the vehicle, and a processor electrically connected to the vehicle control signal capturing device. The processor defines a first auxiliary line and a second auxiliary line to form a warning area between the first auxiliary line and the second auxiliary line, and is configured to dynamically adjust the first auxiliary line and / or the second auxiliary line according to the direction change signal in order to adjust the warning area.

[0006] As described above, the vehicle warning device and the vehicle auxiliary line adjustment device according to the present invention dynamically adjust the first auxiliary line and the second auxiliary line according to whether one or more wheels of the vehicle are rotating, whereby the effective range of the warning area formed between the first auxiliary line and the second auxiliary line can be dynamically changed. Therefore, regardless of whether the vehicle is in a stationary state or a moving state, the vehicle warning device and the vehicle auxiliary line adjustment device according to the present invention can dynamically adjust the warning area to cover all blind spots of the vehicle as long as one or more wheels of the vehicle are rotating. The vehicle warning device and vehicle auxiliary line adjustment device according to the present invention can effectively overcome the above-described problems.

[0007] The above is not intended to limit the present invention, but generally explains the technical problems that the present invention can solve, the technical means that the present invention can adopt, and the technical effects that the present invention can achieve, and only gives those skilled in the art a prior understanding of the present invention. Those skilled in the art can further understand the details of various embodiments of the present invention based on the attached drawings and the content described in the following embodiments.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Modes for Carrying Out the Invention

[0009] Hereinafter, the present invention will be described with reference to some embodiments. However, these embodiments are not intended to limit the present invention to be implemented only according to the operations, environments, uses, structures, flow processes or steps described in this specification. Elements irrelevant to the present invention are omitted from the description, but may be implied in the attached drawings. In the attached drawings, the dimensions and dimensional scales between individual elements are provided only for the purpose of explanation and are not intended to limit the present invention. Unless otherwise specified, in the following description, the same (or similar) reference numerals may correspond to the same (or similar) elements. Unless otherwise specified, the number of each of the elements described below can be one or more and is implementable.

[0010] The terms used in this disclosure are for the purpose of describing embodiments only and are not intended to limit the present invention. Unless otherwise clearly defined in the context, the singular form "a / an / one" is intended to include the plural form. Terms such as "including" and "comprising" indicate the presence of the features, integers, steps, operations, elements, and / or components described herein, but do not exclude the presence of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. The term "and / or" includes any and all combinations of one or more of the listed related items.

[0011] Unless otherwise stated in the context, descriptors such as "first auxiliary line", "second auxiliary line", "first sub-region", "second sub-region", and "third sub-region" are used only to distinguish elements starting with the descriptor, and such descriptors should not be construed as indicating an order.

[0012] FIG. 1 is a schematic diagram showing the configuration of a vehicle warning device 1 according to the present invention. The content shown in FIG. 1 merely illustrates some embodiments of the present invention and is not intended to limit the scope claimed in the present invention.

[0013] Referring to FIG. 1 for explanation. The vehicle warning device 1 according to an embodiment of the present invention may include an image capture device 100, a vehicle control signal capture device 200, a processor 300, a storage device 400, and other elements. The processor 300 is electrically connected to the image capture device 100, the vehicle control signal capture device 200, and the storage device 400.

[0014] The image capture device 100 may be disposed on the vehicle to capture an image V1 outside the vehicle. The image V1 can be an image in an image or video taken in various directions, such as an image in an image or video taken in front of, behind, and on the sides of a vehicle.

[0015] The vehicle control signal acquisition device 200 can be electrically connected to the vehicle control unit C10 of the vehicle, and can be configured to acquire all control signals of the vehicle, including the direction change signal S1 related to the rotation of the steering wheel of the vehicle, from the vehicle control unit C10.

[0016] For example, the vehicle control signal acquisition device 200 can acquire the direction change signal S1 related to the rotation of the steering wheel of the vehicle from the vehicle control unit C10 through CAN (Controller Area Network), LIN (Local Interconnect Network), UART (Universal Asynchronous Receiver / Transmitter), or I 2 C (Inter-Integrated Circuit).

[0017] The processor 300 can be a microprocessor or a microcontroller capable of signal processing and the like. The microprocessor or microcontroller is a kind of programmable specific integrated circuit capable of operations, storage, output / input, etc. Furthermore, the microprocessor or microcontroller can receive and process various encoded instructions, thereby performing various logical operations and arithmetic operations and outputting corresponding operation results.

[0018] The processor 300 can be programmed to execute various operations or programs in the vehicle warning device 1. The processor 300 can be configured to define a first auxiliary line and a second auxiliary line and form a warning area between the first auxiliary line and the second auxiliary line. For example, the processor 300 can define the first auxiliary line and the second auxiliary line according to the size of the vehicle and the installation position of the image acquisition device 100. The processor 300 may be further configured to transmit data of the first auxiliary line and the second auxiliary line to the display device 500 and display the first auxiliary line and the second auxiliary line on the display device 500.

[0019] The warning area between the first auxiliary line and the second auxiliary line may be a single area or may be further divided into a plurality of areas. For example, the processor 300 can divide the warning area into at least two sub-areas, and the various sub-areas respectively correspond to various danger levels.

[0020] The processor 300 may be further configured to identify one or more target objects in the image V1 and determine whether the one or more target objects are in contact with the warning area defined by the first auxiliary line and the second auxiliary line. The image V1 may contain a plurality of objects, and only the target objects are the objects used to determine whether they are in contact with the warning area. In other words, the processor 300 does not need to judge all the objects in the image V1. In some embodiments, the processor 300 can identify one or more target objects from the image V1 through a neural network model and then make a judgment only for the one or more target objects.

[0021] The neural network model is an object recognition model pre-generated by machine learning and training. In the process of machine training, neural network algorithms such as sub-pixel multiplex filtering convolution, linear equalization correction, and adaptive pooling can be used.

[0022] In some embodiments, the processor 300 can also identify one or more target objects from the image V1 by comparing the objects in the image V1 with a target object database and then make a judgment only for the one or more target objects.

[0023] For example, the processor 300 may identify a person or a vehicle in the image V1 as a target object, identify other objects in the image V1 (such as weeds, flying paper, or birds at high speed) as general objects, and then determine only whether the person or vehicle in the image V1 is in contact with the warning area formed between the first auxiliary line and the second auxiliary line.

[0024] When the processor 300 determines that a specific target object is in contact with the warning area, the processor 300 generates an alarm signal.

[0025] In some embodiments, the processor 300 is further configured to transmit the alarm signal to the display device 500, another display device (not shown), and / or the alarm device 600.

[0026] For example, the alarm device 600 may be a light alarm device or a sound alarm device. The light alarm device may be, for example, an alarm lamp on the vehicle, while the sound alarm device may be, for example, a speaker on the vehicle (which gives an alarm by sound or voice). The other display device may be one of various portable devices or various cloud devices.

[0027] In some embodiments, before identifying one or more target objects from the image V1, the processor 300 may also perform image preprocessing on the image V1.

[0028] For example, the processor 300 may perform image preprocessing such as cropping, enlarging, or reducing the image V1, or adjusting the contrast and resolution of the image V1 in advance according to the current luminance inside and outside the vehicle, the specifications of the display device 500, and / or the display positions of the first auxiliary line and the second auxiliary line on the screen of the display device 500.

[0029] The storage device 400 may be configured to store data generated by the vehicle alarm device 1 or data transmitted from outside the vehicle alarm device 1. For example, the storage device 400 may be configured to store data related to the image V1, the first auxiliary line, and the second auxiliary line, the target object database, and the like.

[0030] The storage device 400 may include a primary memory (also referred to as a main memory or an internal memory), and the processor 300 may directly read an instruction set stored in the primary memory and execute these instruction sets if necessary. The storage device 400 may optionally include a secondary memory (also referred to as an external memory or an auxiliary memory) that can transmit data to the primary memory through a data buffer.

[0031] The secondary memory may be, for example, but not limited to, a hard disk, an optical disk, or the like. The storage device 400 may optionally include a tertiary memory, that is, a storage device such as a portable hard disk that can be directly inserted into or removed from a computer. The storage device 400 may optionally also include a cloud storage device unit.

[0032] This will be described with reference to FIGS. 2A, 2B, and 2C. The processor 300 may also be configured to dynamically adjust the first auxiliary line and / or the second auxiliary line according to the direction change signal S1 captured by the vehicle control signal capture device 200 in order to adjust the warning area.

[0033] FIGS. 2A to 2C are schematic diagrams showing a method for dynamically adjusting vehicle auxiliary lines according to various embodiments of the present invention. The content shown in FIGS. 2A to 2C merely illustrates some embodiments of the present invention and is not intended to limit the scope of the present invention.

[0034] First, referring to FIG. 2A, it is assumed that the first auxiliary line A1, the second auxiliary line A2, and the warning area B are displayed on the display device 500, and the warning area B includes a first sub-area B10, a second sub-area B20, and a third sub-area B30.

[0035] Furthermore, while the first lower region B10 is the region closest to the vehicle C, the third lower region B30 is the farthest from the vehicle C. Thus, while the first lower region B10 corresponds to the highest danger level, the third lower region B30 corresponds to the lowest danger level.

[0036] In some embodiments, the processor 300 may mark the effective ranges of the three lower regions on the display device 500 in different colors to represent different danger levels. For example, the effective ranges of the first lower region B10, the second lower region B20, and the third lower region B30 are filled with red, yellow, and green, respectively.

[0037] When the display device 500 indicates that the target object T in the image V1 is in contact with the warning area B, this means that the processor 300 determines the danger level corresponding to the lower region of the warning area B with which the target object T is in contact and generates a corresponding warning signal.

[0038] For example, since the first lower region B10 is the region closest to the vehicle C, the vehicle C is more likely to be in contact with the first lower region B10. Thus, when the processor 300 determines that the target object T in the image V1 is in contact with or appears within the first lower region B10, the warning signal S2 generated by the processor 300 causes the display device 500 and / or the warning device 600 to issue a warning in the form of an emergency warning sound, flashing light, and / or voice, etc.

[0039] When the processor 300 determines that the target object T in the image V1 is in contact with or appears within the second lower region B20, the warning signal S2 generated by the processor 300 causes the display device 500 and / or the warning device 600 to issue a warning in the form of a steady warning sound, flashing light, and / or voice, etc. This is because the second lower region B20 is slightly away from the vehicle C.

[0040] When the processor 300 determines that the target object T in the image V1 is in contact with or appears within the third sub-region B30, the warning signal S2 generated by the processor 300 causes a warning in the form of a gentle warning sound, a blinking light, and / or a voice to be issued to the display device 500 and / or the warning device 600. This is because the third sub-region B30 is still far from the vehicle C.

[0041] Next, a description will be given with reference to FIG. 2B. When the vehicle C is about to turn left on a curve, or when the driver needs to turn left to reverse the vehicle C, the vehicle control signal acquisition device 200 can acquire the direction change signal S1 of the vehicle C from the vehicle control unit C10 and transmit the direction change signal S1 to the processor 300.

[0042] Next, the processor 300 can dynamically adjust the first auxiliary line A1 and / or the second auxiliary line A2 according to the direction change signal S1 and dynamically present the adjusted result on the display device 500. As shown in FIG. 2B, when the driver rotates the steering wheel to the left, the processor 300 can dynamically adjust the first auxiliary line A1 and the second auxiliary line A2 from the original straight line to a curve on the left side, and present the adjusted first auxiliary line A1 and the second auxiliary line A2 to the display device 500, so that the measurement effective range of the auxiliary line can cover the blind spot area when the vehicle C turns.

[0043] In some embodiments, the processor 300 can further present the first auxiliary line A1 and the second auxiliary line A2 on the display device 500 before adjustment (for example, shown by a dotted line in FIG. 2B).

[0044] Similarly, when the driver rotates the steering wheel to the right, the processor 300 can dynamically adjust the first auxiliary line A1 and the second auxiliary line A2 from the original straight line to a curve on the right side and present the adjusted first auxiliary line A1 and the second auxiliary line A2 on the display device 500.

[0045] In some embodiments, instead of adjusting the first auxiliary line A1 and the second auxiliary line A2 in FIG. 2B to a leftward curve, the processor 300 may shift the first auxiliary line A1 to the left or rotate it counterclockwise without changing the axis of the first auxiliary line A1, and shift the second auxiliary line A2 to the right or rotate it clockwise without changing the axis of the second auxiliary line A2, so that the warning area B is extended to cover the blind area when the vehicle C turns.

[0046] In some embodiments, while adjusting the first auxiliary line A1 and the second auxiliary line A2 in FIG. 2B to a leftward curve, the processor 300 may simultaneously shift the first auxiliary line A1 that curves to the left to the left or rotate it counterclockwise without changing the axis of the first auxiliary line A1 that curves to the left, and shift the second auxiliary line A2 that curves to the left to the right or rotate it clockwise without changing the axis of the second auxiliary line A2 that curves to the left.

[0047] Referring back to FIG. 2C for description. In some embodiments of the present invention, when the driver rotates the steering wheel to the left, the processor 300 may dynamically adjust only one of the first auxiliary line A1 and the second auxiliary line A2 from the original straight line to a leftward curve.

[0048] For example, only the first auxiliary line A1 is adjusted to be a leftward curve, while the second auxiliary line A2 remains straight, thereby ensuring that the measurement effective range of the auxiliary line can cover the blind area in front of or behind the vehicle C.

[0049] Similarly, when the driver rotates the steering wheel to the right, the processor 300 may dynamically adjust only one of the first auxiliary line A1 and the second auxiliary line A2 from the original straight line to a rightward curve. For example, only the second auxiliary line A2 is adjusted to a rightward curve, while the first auxiliary line A1 remains straight.

[0050] In some embodiments, instead of adjusting the first auxiliary line A1 in FIG. 2C to a leftward curve, the processor 300 may shift the first auxiliary line A1 to the left or rotate the first auxiliary line A1 counterclockwise without changing the axis, so that the warning area B is expanded to cover the blind area when the vehicle C turns.

[0051] In some embodiments, while adjusting the first auxiliary line A1 in FIG. 2C to a leftward curve, the processor 300 may simultaneously shift the first auxiliary line A1 of the leftward curve to the left or rotate the first auxiliary line A1 of the leftward curve counterclockwise without changing the axis.

[0052] In some embodiments, the processor 300 may include a first processor and a second processor.

[0053] The storage device 400 may include a first storage device and a second storage device. The first processor, the first storage device, and the vehicle control signal acquisition device 200 may be combined into a vehicle auxiliary line adjustment device.

[0054] The first processor is electrically connected to the vehicle control signal acquisition device 200, configured to define the first auxiliary line and the second auxiliary line, and form a warning area between the first auxiliary line and the second auxiliary line. The first processor is further configured to dynamically adjust the first auxiliary line and / or the second auxiliary line according to the direction change signal S1 to adjust the warning area.

[0055] The first storage device is configured to store data of the first auxiliary line and the second auxiliary line.

[0056] Furthermore, the second processor is configured to identify a target object in the image V1 and determine whether the target object in the image V1 contacts the warning area defined by the first auxiliary line and the second auxiliary line defined by the first processor.

[0057] When it is determined that the target object is in contact with the warning area, the second processor generates a warning signal S2 and transmits the warning signal S2 to the display device 500 and / or the warning device 600.

[0058] The second processor is further configured to transmit the image V1 and the data of the first auxiliary line and the second auxiliary line defined by the first processor to the display device 500. Furthermore, the second processor is further configured to perform image preprocessing on the image V1.

[0059] The above-described embodiments are merely examples for explaining the present invention and are not intended to limit the scope of the claims. Any other embodiments resulting from modifications, changes, adjustments, and integrations of the above-described embodiments shall be included within the scope of the present invention as long as they are not difficult for those skilled in the art to conceive. The scope claimed in the present invention shall be determined by the scope of the claims.

Claims

1. A vehicle warning device, wherein the vehicle warning device comprises: An image capturing device disposed on the vehicle and configured to capture an image outside the vehicle; A vehicle control signal capturing device configured to capture a direction change signal of the vehicle; A processor electrically connected to the image capturing device and the vehicle control signal capturing device, the processor being configured to: Define a first auxiliary line and a second auxiliary line to form a warning area between the first auxiliary line and the second auxiliary line; Identify a target object in the image; Determine whether the target object touches the warning area formed by the first auxiliary line and the second auxiliary line; When it is determined that the target object touches the warning area, generate an warning signal; The processor is further configured to dynamically adjust the first auxiliary line and / or the second auxiliary line according to the direction change signal to adjust the warning area, characterized in that it is a vehicle warning device.

2. The processor defines the first auxiliary line and the second auxiliary line according to the size of the vehicle and the installation position of the image capturing device, characterized in that it is the vehicle warning device according to claim 1.

3. The vehicle warning device according to claim 1, further comprising a storage device configured to store data of the first auxiliary line and the second auxiliary line.

4. The vehicle control signal acquisition device captures the direction change signal of the vehicle through CAN (Controller Area Network), LIN (Local Interconnect Network), UART (Universal Asynchronous Receiver / Transmitter), or I 2 C (Inter-Integrated Circuit), and the vehicle warning device according to claim 1 is characterized by this.

5. The warning area includes at least two sub-areas respectively corresponding to different danger levels, characterized in that it is the vehicle warning device according to claim 1.

6. The image is a rear image of the vehicle, characterized in that it is the vehicle warning device according to claim 1.

7. The processor identifies the target object from the image by a neural network model, characterized in that it is the vehicle warning device according to claim 1.

8. The processor is further configured to perform image preprocessing on the image, characterized in that it is the vehicle warning device according to claim 1.

9. The processor is further configured to transmit the warning signal to a display device and / or a warning device, characterized in that it is the vehicle warning device according to claim 1.

10. The warning device is a light warning device or a sound warning device, characterized in that it is the vehicle warning device according to claim 9.

11. The vehicle warning device according to claim 1, wherein the processor further transmits the image and data of the first auxiliary line and the second auxiliary line to a display device.

12. A vehicle auxiliary line adjustment device, wherein the vehicle auxiliary line adjustment device A vehicle control signal acquisition device configured to acquire a direction change signal of the vehicle, A processor electrically connected to the vehicle control signal acquisition device And the processor Defines a first auxiliary line and a second auxiliary line to form a warning area between the first auxiliary line and the second auxiliary line, To adjust the warning area, the first auxiliary line and / or the second auxiliary line are dynamically adjusted according to the direction change signal A vehicle auxiliary line adjustment device configured as described above.

13. The vehicle auxiliary line adjustment device according to claim 12, wherein the processor defines the first auxiliary line and the second auxiliary line according to the size of the vehicle and the installation position of the image acquisition device.

14. The vehicle auxiliary line adjustment device according to claim 12, further comprising a storage device configured to store data of the first auxiliary line and the second auxiliary line.

15. The vehicle control signal acquisition device captures the direction change signal of the vehicle through CAN (Controller Area Network), LIN (Local Interconnect Network), UART (Universal Asynchronous Receiver / Transmitter), or I 2 C (Inter-Integrated Circuit), and the vehicle auxiliary line adjusting device according to claim 12 is characterized in that.

16. The vehicle auxiliary line adjustment device according to claim 12, wherein the warning area includes at least two sub-areas respectively corresponding to different risk levels.

Citation Information

Patent Citations

  • Work machine for mine, obstacle determination device and obstacle determination method

    JP2018049496A

  • Vehicle alarm device

    JP2021064085A

  • Pedestrian Probability Prediction System for Autonomous Driving Vehicles

    JP2021501712A

  • Detecting construction zone by lead autonomous vehicle (AV) and updating routing plan for following av

    JP2022048992A

  • Vehicle control device

    JP2023041204A