Method and device for testing alarm delay of vehicle blind spot detection system

Abstract

The invention provides a method and a device for testing alarm delay of a vehicle blind spot detection system, and the method comprises the steps: receiving a first alarm signal transmitted by a pressure switch sensor which is preset on an edge line of a blind spot alarm region, and recording the first time when the first alarm signal is transmitted; receiving a second alarm signal sent by the vehicle blind spot detection system when the vehicle blind spot detection system detects that the target enters the blind area alarm area, and recording a second time when the second alarm signal is sent; subtracting the first time from the second time to obtain alarm delay of the vehicle blind spot detection system; when the alarm delay is not greater than a preset delay threshold value, determining that the vehicle blind spot detection system passes the alarm delay test; otherwise, determining that the vehicle blind spot detection system does not pass the alarm delay test. By means of the technical scheme, the alarm delay of the BSD system in the static environment can be accurately simulated, and whether the alarm delay meets the requirement or not is tested.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle safety, and in particular to a method and a device for testing the alarm delay of a vehicle blind spot detection system. Background Art

[0002] The vehicle blind spot detection (BSD) system is an important part of modern automotive safety technology. It monitors other vehicles or objects in the vehicle's blind spot area through camera sensors and issues an alarm when potential dangers are detected. Regulations have strict requirements on the alarm delay of the BSD system to ensure that the system can provide timely warnings at critical moments. However, existing testing methods often rely on actual road testing, which is costly and inefficient, lacks a standardized testing environment, and has low test accuracy. Summary of the invention

[0003] The embodiments of the present invention provide a method and a device for testing the alarm delay of a vehicle blind spot detection system, so as to accurately simulate the alarm delay of a BSD system in a static environment and determine whether the alarm delay meets the requirements.

[0004] In order to achieve the above object, on the one hand, a method for testing the alarm delay of a vehicle blind spot detection system is provided, comprising:

[0005] Receiving a first alarm signal issued by a pressure switch sensor pre-set on an edge line of a blind spot alarm area of ​​a vehicle blind spot detection system, and recording a first time when the first alarm signal is issued, wherein the first alarm signal is triggered when the pressure sensor senses that a target enters the blind spot alarm area, wherein the blind spot alarm area is pre-set; receiving a second alarm signal issued by the vehicle blind spot detection system when the target enters the blind spot alarm area, and recording a second time when the second alarm signal is issued;

[0006] Subtract the first time from the second time to obtain an alarm delay of a vehicle blind spot detection system;

[0007] When the alarm delay is not greater than a predetermined delay threshold, it is determined that the vehicle blind spot detection system passes the alarm delay test; otherwise, it is determined that the vehicle blind spot detection system fails the alarm delay test.

[0008] Preferably, the test method, while receiving the first alarm signal, also obtains the time information of issuing the first alarm signal; and, while receiving the second alarm signal, also obtains the time information of issuing the second alarm signal.

[0009] Preferably, in the testing method, the targets include: motor vehicles, non-motor vehicles and / or pedestrians.

[0010] Preferably, in the test method, a plurality of the pressure switch sensors are pre-arranged at selected positions of the edge line of the blind spot warning area or at all positions covering the edge line.

[0011] Preferably, in the test method, the vehicle blind spot detection system detects a target entering the blind spot warning area by the following steps:

[0012] Acquire an image of the blind spot warning area by using a plurality of image acquisition devices arranged at predetermined positions on the front side, left front side, right front side, left rear side and right rear side of the vehicle body;

[0013] According to the acquired image of the blind spot warning area and a predetermined target recognition algorithm, a target entering the blind spot warning area is detected.

[0014] Preferably, the testing method further comprises:

[0015] Displaying the test results via a display screen; and / or

[0016] The setting and adjustment of the test parameters are received through a display screen; wherein the test parameters include: the delay threshold and / or the area range of the blind spot alarm area.

[0017] On the other hand, a vehicle blind spot detection system alarm delay test device is provided, comprising:

[0018] A pressure switch sensor is arranged on an edge line of a blind spot alarm area of ​​a vehicle blind spot detection system, the blind spot alarm area is pre-set, and is used to trigger a first alarm signal when sensing that a target enters the blind spot alarm area, and send the first alarm signal to a processor;

[0019] Processor for:

[0020] receiving the first alarm signal sent by the pressure sensor, and recording a first time when the first alarm signal is sent; and,

[0021] receiving a second alarm signal issued by the vehicle blind spot detection system when detecting that the target enters the blind spot alarm area, and recording a second time when the second alarm signal is issued;

[0022] Subtract the first time from the second time to obtain the alarm delay of the vehicle blind spot detection system; when the alarm delay is not greater than a predetermined delay threshold, it is determined that the vehicle blind spot detection system has passed the alarm delay test; otherwise, it is determined that the vehicle blind spot detection system has not passed the alarm delay test.

[0023] Preferably, the testing device, wherein:

[0024] The targets include: motor vehicles, non-motor vehicles and / or pedestrians; and / or,

[0025] The pressure switch sensor is arranged at a selected position of the edge line of the blind spot warning area or at all positions covering the edge line.

[0026] Preferably, the test device, the vehicle blind spot detection system comprises:

[0027] A plurality of image acquisition devices are arranged at predetermined positions on the front side, left front side, right front side, left rear side and right rear side of the vehicle body, and are used to acquire images of the blind spot warning area;

[0028] The data processing module is used to detect a target entering the blind spot warning area according to the acquired image of the blind spot warning area and a predetermined target recognition algorithm.

[0029] Preferably, the testing device further comprises:

[0030] A display screen is used to display test results and / or receive settings and adjustments to test parameters; wherein the test parameters include: the delay threshold and / or the area range of the blind spot alarm area.

[0031] The above technical solution has the following technical effects:

[0032] The technical solution of the embodiment of the present invention sets a pressure switch sensor on the edge line of the blind spot alarm area of ​​the vehicle blind spot detection system, and obtains the first time when the target actually enters the blind spot by applying pressure to the pressure switch sensor when the target enters the alarm area and thereby triggering the pressure switch sensor to send a first alarm signal; by comparing the first time when the target actually enters the blind spot and the second time when the BSD system to be tested sends an alarm, the alarm delay of the BSD system can be accurately determined, and then it can be further determined whether the alarm delay meets the requirements; the technical solution of the embodiment of the present invention can provide a more accurate BSD alarm delay test; and the test device has a lower cost and the test environment is easier to arrange.

[0033] In a further embodiment, if the delay threshold is preset according to regulatory requirements, it may be possible to test whether the BSD alarm delay meets the regulatory requirements.

[0034] In a further embodiment, intuitive operation and result display may be provided through a display screen, such as by displaying a user interface on the display screen, which helps manufacturers optimize the design and performance of the BSD system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic flow chart of a method for testing the alarm delay of a vehicle blind spot detection system according to an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of a pressure sensor used in one embodiment of the present invention;

[0037] Figure 3 A schematic diagram of an area to be monitored by a vehicle blind spot detection system in one embodiment of the present invention;

[0038] Figure 4 A schematic diagram of an exemplary blind spot warning area and camera position setting. DETAILED DESCRIPTION

[0039] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0040] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0041] Embodiment 1:

[0042] Figure 1 FIG. 1 is a flow chart of a method for testing the alarm delay of a vehicle blind spot detection system according to an embodiment of the present invention. Figure 1 The vehicle blind spot detection system alarm delay test method of this embodiment comprises the following steps:

[0043] Receive a first alarm signal emitted by a pressure switch sensor pre-set on the edge line of a blind spot alarm area of ​​a vehicle blind spot detection system, and record the first time when the first alarm signal is emitted, wherein the first alarm signal is triggered when the pressure sensor senses that a target has entered the blind spot alarm area, wherein the blind spot alarm area is pre-set; preferably, while receiving the first alarm signal, the time information of the emission of the first alarm signal, such as a corresponding timestamp, is also obtained; and, while receiving the second alarm signal, the time information of the emission of the second alarm signal, such as a corresponding timestamp, is also obtained; in a specific implementation, when the above-mentioned target enters the blind spot alarm area, it applies pressure to the pressure sensor set on the edge line, thereby triggering the pressure sensor to emit an alarm signal, such as the first alarm signal, illustratively, the first alarm signal is a low-level signal; in a specific implementation, the above-mentioned targets include: motor vehicles, non-motor vehicles and / or pedestrians; in a specific implementation, according to the scenario to be tested, a plurality of the pressure switch sensors are pre-set at selected positions on the edge line of the blind spot alarm area or at all positions covering the edge line; in an embodiment of the present invention, a pressure sensor of the prior art is used; Figure 2 is a schematic diagram of a pressure sensor used in one embodiment of the present invention;

[0044] receiving a second alarm signal sent by the vehicle blind spot detection system when detecting that a target enters a blind spot alarm area, and recording a second time when the second alarm signal is sent;

[0045] Subtract the first time from the second time to obtain the alarm delay of the vehicle blind spot detection system;

[0046] When the alarm delay is not greater than the predetermined delay threshold, it is determined that the vehicle blind spot detection system passes the alarm delay test; otherwise, it is determined that the vehicle blind spot detection system fails the alarm delay test. Preferably, the delay threshold is pre-set according to regulatory requirements.

[0047] Figure 3 FIG. 1 is a schematic diagram of an area to be monitored by a vehicle blind spot detection system in one embodiment of the present invention. Figure 3 The blind spot areas to be monitored include a right blind spot monitoring area 301 and a left blind spot monitoring area 302. A blind spot alarm area is set accordingly according to the blind spot monitoring area. Preferably, the blind spot alarm area is not larger than the blind spot monitoring area; preferably, a blind spot alarm area is set within the blind spot monitoring area. Figure 4 FIG. 1 is a schematic diagram of an exemplary blind spot warning area and camera setting position. Figure 4 , showing a right blind spot alarm area 403 pre-set according to the right blind spot monitoring area 401, and a left blind spot alarm area 404 pre-set according to the left blind spot monitoring area 402. The left and right blind spot alarm areas can be set symmetrically or asymmetrically. In a specific implementation, the multiple pressure switch sensors include: a front side pressure switch sensor set on the front edge line of the blind spot alarm area, a left side pressure switch sensor set on the left edge line of the left blind spot alarm area 404, and a right side pressure switch sensor set on the right edge line of the right blind spot alarm area 403. During the test, when a target such as a target vehicle enters the BSD blind spot alarm area from the left, the left side pressure switch sensor alarm is triggered, when a target such as a target vehicle enters the BSD blind spot alarm area from the right, the right side pressure switch sensor alarm is triggered, and when a target such as a target vehicle enters the BSD blind spot alarm area from the front, the front side pressure switch sensor alarm is triggered.

[0048] Preferably, the method of the embodiment of the present invention further includes:

[0049] Displaying the test results via a display screen; and / or

[0050] The setting and adjustment of the test parameters are received through the display screen; wherein the test parameters include: delay threshold, area range of the blind spot monitoring area and / or area range of the blind spot alarm area. Preferably, the area range of the blind spot monitoring area includes: the area range of the left and / or right monitoring area; the area range of the blind spot alarm area includes: the area range of the left and / or right blind spot alarm area.

[0051] The testing method of the embodiment of the present invention can be used to test any vehicle blind spot detection system preset on a vehicle.

[0052] In a specific implementation, the vehicle blind spot detection system is a vehicle blind spot detection system implemented using an image recognition algorithm. For this implementation, the vehicle blind spot detection system detects a target entering a blind spot alarm area through the following steps:

[0053] The image of the blind spot warning area is obtained by multiple image acquisition devices arranged at predetermined positions on the front side, left front side, right front side, left rear side and right rear side of the vehicle body; in a specific implementation, the predetermined positions are as follows Figure 4 Position 405, position 406, position 407 and position 408 in the embodiment; in a specific implementation, the above positions are positions preset according to the scene and needs; in an implementation, the number of the above cameras is 5; ordinary technicians in this field can select the specific installation position and number of cameras according to the actual vehicle model and load, which will not be repeated here;

[0054] According to the acquired image of the blind spot warning area and the predetermined target recognition algorithm, the target entering the blind spot warning area is detected. The above target recognition algorithm is, for example, the Yolo algorithm, etc. The present invention is not intended to protect the technical solution of vehicle blind spot detection, so it is not described here.

[0055] Embodiment 2:

[0056] The embodiment of the present invention further provides a vehicle blind spot detection system alarm delay test device, comprising:

[0057] A pressure switch sensor is arranged on an edge line of a blind spot warning area of ​​a vehicle blind spot detection system, the blind spot warning area is pre-set, and is used to trigger a first alarm signal when a target enters the blind spot warning area, and send the first alarm signal to a processor; in a specific implementation, the target includes: a motor vehicle, a non-motor vehicle and / or a pedestrian; and / or, the pressure switch sensor is arranged in a selected area or all areas of the edge line of the blind spot warning area;

[0058] The processor is used to: receive a first alarm signal sent by a pressure sensor and record the first time when the first alarm signal is sent; and receive a second alarm signal sent by a vehicle blind spot detection system when a target is detected to enter a blind spot alarm area, and record the second time when the second alarm signal is sent; subtract the first time from the second time to obtain the alarm delay of the vehicle blind spot detection system; when the alarm delay is not greater than a predetermined delay threshold, determine that the vehicle blind spot detection system passes the alarm delay test; otherwise, determine that the vehicle blind spot detection system does not pass the alarm delay test. In a specific implementation, the above steps executed by the processor are implemented by corresponding program modules; in one implementation, the above program modules are stored in a predetermined memory. Preferably, the delay threshold is pre-set according to regulatory requirements.

[0059] In a specific implementation, the test device of an embodiment of the present invention also includes: a display screen for displaying test results and / or receiving settings and adjustments to test parameters; wherein the above-mentioned test parameters include: a delay threshold, an area range of a blind spot monitoring area, and / or an area range of a blind spot alarm area.

[0060] In a specific implementation, the blind spot detection system of the vehicle on the waiting side includes:

[0061] A plurality of image acquisition devices are arranged at predetermined positions on the front side, left front side, right front side, left rear side and right rear side of the vehicle body, for acquiring images of the blind spot warning area;

[0062] The data processing module is used to detect the target entering the blind spot warning area according to the acquired image of the blind spot warning area and a predetermined target recognition algorithm.

[0063] The embodiment of the present invention is not only used to perform alarm delay test on the above-mentioned vehicle blind spot detection system. In other implementations, the testing device of the embodiment of the present invention can also test the vehicle blind spot detection system implemented by other methods.

[0064] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A method for testing the alarm delay of a vehicle blind spot detection system, characterized in that: include: Receiving a first alarm signal issued by a pressure switch sensor pre-set on an edge line of a blind spot alarm area of ​​a vehicle blind spot detection system, and recording a first time when the first alarm signal is issued, wherein the first alarm signal is triggered when the pressure sensor senses that a target enters the blind spot alarm area, wherein the blind spot alarm area is pre-set; receiving a second alarm signal issued by the vehicle blind spot detection system when the target enters the blind spot alarm area, and recording a second time when the second alarm signal is issued; Subtract the first time from the second time to obtain an alarm delay of a vehicle blind spot detection system; When the alarm delay is not greater than a predetermined delay threshold, it is determined that the vehicle blind spot detection system passes the alarm delay test; otherwise, it is determined that the vehicle blind spot detection system fails the alarm delay test.

2. The testing method according to claim 1, characterized in that: When the first alarm signal is received, the time information of sending the first alarm signal is also obtained; and when the second alarm signal is received, the time information of sending the second alarm signal is also obtained.

3. The testing method according to claim 1, characterized in that: The targets include: motor vehicles, non-motor vehicles and / or pedestrians.

4. The testing method according to claim 1, characterized in that: A plurality of the pressure switch sensors are pre-arranged at selected positions of the edge line of the blind spot warning area or at all positions covering the edge line.

5. The testing method according to claim 1, characterized in that: The vehicle blind spot detection system detects targets entering the blind spot warning area through the following steps: Acquire an image of the blind spot warning area by using a plurality of image acquisition devices arranged at predetermined positions on the front side, left front side, right front side, left rear side and right rear side of the vehicle body; According to the acquired image of the blind spot warning area and a predetermined target recognition algorithm, a target entering the blind spot warning area is detected.

6. The testing method according to claim 1, characterized in that: Also includes: Display the test results on the display screen; and / or The setting and adjustment of the test parameters are received through a display screen; wherein the test parameters include: the delay threshold and / or the area range of the blind spot alarm area.

7. A vehicle blind spot detection system alarm delay test device, characterized in that: include: A pressure switch sensor is arranged on an edge line of a blind spot alarm area of ​​a vehicle blind spot detection system, the blind spot alarm area is pre-set, and is used to trigger a first alarm signal when sensing that a target enters the blind spot alarm area, and send the first alarm signal to a processor; Processor for: receiving the first alarm signal sent by the pressure sensor, and recording a first time when the first alarm signal is sent; and, receiving a second alarm signal issued by the vehicle blind spot detection system when detecting that the target enters the blind spot alarm area, and recording a second time when the second alarm signal is issued; Subtract the first time from the second time to obtain an alarm delay of a vehicle blind spot detection system; When the alarm delay is not greater than a predetermined delay threshold, it is determined that the vehicle blind spot detection system passes the alarm delay test; otherwise, it is determined that the vehicle blind spot detection system fails the alarm delay test.

8. The testing device according to claim 7, characterized in that: The targets include: motor vehicles, non-motor vehicles and / or pedestrians; and / or, The pressure switch sensor is arranged at a selected position of the edge line of the blind spot warning area or at all positions covering the edge line.

9. The testing device according to claim 7, characterized in that: The vehicle blind spot detection system comprises: A plurality of image acquisition devices are arranged at predetermined positions on the front side, left front side, right front side, left rear side and right rear side of the vehicle body, and are used to acquire images of the blind spot warning area; The data processing module is used to detect a target entering the blind spot warning area according to the acquired image of the blind spot warning area and a predetermined target recognition algorithm.

10. The testing device according to claim 7, characterized in that: Also includes: A display screen is used to display test results and / or receive settings and adjustments to test parameters; wherein the test parameters include: the delay threshold and / or the area range of the blind spot alarm area.

Images